Abrégé

The present disclosure provides a harmonic suppression apparatus, method, control unit, power supply apparatus, electric appliance equipment, and storage medium, wherein the harmonic suppression apparatus includes a tuning circuit module, which is connected with a first live wire and a second live wire of a three-phase power supply and is configured to perform resonance regulation processing; a PI-type resonant filtering circuit module, which is respectively connected with the tuning circuit module and a third live wire of the three-phase power supply and is configured to perform harmonic filtering processing on the first-phase current and the second-phase current processed by the tuning circuit module and a third-phase current; and a rectification circuit module, which is connected with the PI-type resonant filtering circuit module and is configured to perform rectification progressing and a power a load.

Classes IPC  ?

• H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
• H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
• H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont

Abrégé

A rotor assembly, a compressor and an air conditioner. The rotor assembly includes a first rotor, including a first working portion and a second working portion coaxially arranged, wherein the first working portion and the second working portion are rotatable about a first axis; the first working portion includes a plurality of first helical blades, with a first blade groove being formed between adjacent two of the plurality of first helical blades; at least one first air pressure groove is provided on a first end face of the first working portion away from the second working portion; and the first air pressure groove is configured to form a force in a predetermined direction along the first axis when rotating. The rotor assembly can reduce costs of the compressor, simplify structures of moving parts of the compressor, and improve performance and reliability of the compressor.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c. à d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p.ex. du type ayant la forme d'un chevron, du type à vis
• F04C 18/08 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c. à d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés
• F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes

Abrégé

Disclosed are a picture saving method, an electronic device and a storage medium. The method includes the following steps: in an acquisition step, in response to a picture saving instruction of a user, acquiring pictures to be saved to a preset icon; in a first display step, displaying the preset icon on a screen; in a second display step, in response to a first instruction of the user operating the preset icon, triggering display of an album window; and in a saving step, in response to a second instruction of the user operating the preset icon, saving at least one of the pictures to be saved to a designated album displayed in the album window.

Classes IPC  ?

• G06F 3/0486 - Glisser-déposer
• G06F 3/04817 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p.ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comport utilisant des icônes
• G06F 3/04845 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] pour la commande de fonctions ou d’opérations spécifiques, p.ex. sélection ou transformation d’un objet, d’une image ou d’un élément de texte affiché, détermination d’une valeur de paramètre ou sélection d’une plage de valeurs pour la transformation d’images, p.ex. glissement, rotation, agrandissement ou changement de couleur

Abrégé

A compressor (200), comprising: a first rotor (20) being rotatable around a first axis (11), the first rotor (20) comprising a first portion (22) and a second portion (24); and a first shaft (10) carrying the first portion (22) and the second portion (24), the first shaft (10) having a first end (12) and a second end (14) that are oppositely arranged, wherein the first rotor (20) is configured to be applied with a preset acting force in a direction from the first end (12) toward the second end (14) or from the second end (14) toward the first end (12) during rotation. The size of the compressor (200) can be reduced with the displacement of the compressor (200) remaining substantially unchanged.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c. à d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p.ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
• F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p.ex. caractéristiques de structure de l'admission ou de l'échappement

Abrégé

The present disclosure relates to an air conditioner pipeline and an air conditioner, thereby alleviating the problem of complicated installation of the air conditioner pipeline. The air conditioner pipeline includes a pipe body. A flow channel for a refrigerant to flow is formed by an inner side of a pipe wall of the pipe body. The pipe wall of the pipe body is provided with at least two conductive parts and insulating parts, where the conductive parts are configured to transmit power to the air conditioner, and the insulating parts are configured to realize insulation between the conductive parts. The air conditioner pipeline provided by the present disclosure can transmit refrigerants and also can transmit power, thereby saving the connection cost of an indoor unit and an outdoor unit of the air conditioner, reducing the installation complexity of the air conditioner, achieving high safety and facilitating implementation.

Classes IPC  ?

• F24F 1/26 - Conduites réfrigérantes
• F25B 41/40 - Agencements de conduites de fluide

Abrégé

A rotor assembly, a compressor and an air conditioner are provided. The rotor assembly includes a first rotation shaft and a first rotor rotatably arranged on the first rotation shaft. The first rotor includes a plurality of first screw blades, and a first tooth slot is formed between two adjacent first screw blades; a suction end of the first rotor has at least one oil slinger slot, to allow a lubricant to enter the first tooth slot through the at least one oil slinger slot. It is ensured that the lubricant can fully lubricate and seal the first tooth slot, so that the compressor can run more smoothly, reduce wear of screw blades and improve the service life of the compressor.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c. à d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p.ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/02 - Lubrification; Séparation du lubrifiant

Abrégé

The present disclosure provides a compressor and an air conditioner. The compressor includes a housing; a first rotating shaft mounted in the housing; a connecting assembly sleeved on the first rotating shaft; and a first rotor assembly including a first rotor and a second rotor coaxially disposed on the connecting assembly. The connecting assembly carries the first rotor and the second rotor to rotate about the first rotating shaft together. The connecting assembly is configured to limit the relative positions of the first rotor and the second rotor, such that there exists a clearance between the first rotor and the second rotor. The present disclosure can maintain a clearance between the first rotor and the second rotor without increasing the number of components of the compressor.

Classes IPC  ?

• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c. à d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p.ex. du type ayant la forme d'un chevron, du type à vis
• F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes

Abrégé

The present disclosure relates to a blowing structure and a fan. The blowing structure includes a main body, a base, a control panel, a second drive member, and a first drive member. The main body is provided with a blowing channel, and the main body is rotatably connected to the base. The control panel is disposed on the main body. The second drive member is disposed in the blowing channel. The first drive member is connected to the main body, and the first drive member is configured to adjust an angle of rotation of the main body with respect to the base. The control panel is electrically connected to the second drive member and the first drive member.

Classes IPC  ?

• F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p.ex. pour la ventilation
• F04D 29/64 - Montage; Assemblage; Démontage des pompes axiales
• F04D 29/70 - Grilles d'aspiration; Filtres; Séparateurs de poussière; Nettoyage
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité

Abrégé

The present application provides a rotor assembly and a self-starting permanent magnet synchronous reluctance motor. The rotor assembly includes a rotor core, wherein on a cross section of the rotor core, the rotor core is provided with slit slots, q-axis squirrel cage slots and permanent magnets, the q-axis squirrel cage slots are disposed at two ends of the slit slots, the permanent magnets are disposed in the slit slots, the permanent magnet located at the innermost layer in a d-axis direction is at least asymmetrically disposed relative to a d-axis, and an offset direction of the permanent magnet located at the innermost layer relative to the d axis is consistent with a rotation direction of the rotor assembly.

Classes IPC  ?

• H02K 21/46 - Moteurs avec enroulement supplémentaire en court-circuit pour démarrage en moteur asynchrone

Abrégé

Disclosed are a cell structure of a semiconductor device, a preparation method thereof and a semiconductor device. The cell structure includes: a substrate of a first conductive type; at least one first trench gate, at least one second trench gate, at least one third trench gate, and at least one fourth trench gate that are sequentially disposed side by side in an upper surface of the substrate; a source region of the first conductive type located in an upper surface of the well region and disposed on two sides of each trench gate; and an emitter metal layer located above the substrate and electrically connected to the source region, where the first trench gate, the second trench gate, and the third trench gate are isolated from the emitter metal layer by a first interlayer dielectric layer, and the fourth trench gate is electrically connected to the emitter metal layer.

Classes IPC  ?

• H01L 29/739 - Dispositifs du type transistor, c.à d. susceptibles de répondre en continu aux signaux de commande appliqués commandés par effet de champ
• H01L 29/66 - Types de dispositifs semi-conducteurs

Abrégé

Disclosed are an intelligent power module and a manufacturing method thereof, which relate to the technical field of electronic devices. The intelligent power module includes a substrate, wherein a chip and a plurality of conductive pins are arranged on the substrate, one end of each of the conductive pins is connected to the chip, and a solder pin is formed at an end portion of the other end of the conductive pin; and an external pin frame, including a plurality of leads, and a connection structure is formed at an end portion of one end of each of the lead; and the connection structure includes a connection portion, and support portions, wherein an arrangement direction of the support portions is the same as that of the solder pins, an accommodation space is formed between the two support portions, and the solder pin is located between the two support portions.

Classes IPC  ?

• H01L 23/498 - Connexions électriques sur des substrats isolants
• H01L 21/48 - Fabrication ou traitement de parties, p.ex. de conteneurs, avant l'assemblage des dispositifs, en utilisant des procédés non couverts par l'un uniquement des groupes

Abrégé

This application provides a method and an apparatus for establishing a scene. The method for establishing the scene includes: receiving current state information of all devices in a target folder sent by a terminal, and the target folder is a set of devices that support scene establishment; establishing a target scene according to the current state information; and sending state information corresponding to the target scene to the terminal, and the state information corresponding to the target scene is locally pre-stored according to user demands.

Classes IPC  ?

• G06F 16/16 - Opérations sur les fichiers ou les dossiers, p.ex. détails des interfaces utilisateur spécialement adaptées aux systèmes de fichiers

Abrégé

The present disclosure relates to an air conditioner pipeline device and an air conditioner. The air conditioner pipeline device includes a gaseous refrigerant connecting pipe and a liquid refrigerant connecting pipe which are configured to be connected between an indoor unit and an outdoor unit of the air conditioner. At least one of the gaseous refrigerant connecting pipe and the liquid refrigerant connecting pipe adopts a multi-layer pipe. The multi-layer pipe includes at least two conductive pipes, sequentially and coaxially sleeved along a radial direction of the multi-layer pipe and configured to be connected to a power supply of the air conditioner to transmit power to the air conditioner, where an internal area of the innermost layer of conductive pipe is used for a refrigerant to flow; and first insulating layers, configured to achieve insulation of at least two conductive pipes.

Classes IPC  ?

• F24F 3/06 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaire; Appareillage spécialement conçu pour de tels systèmes caractérisés par les aménagements apportés à la fourniture d'un fluide échangeur de chaleur pour le traitement ultérieur de l'air primaire dans les conditionneurs de pièce

Abrégé

Some embodiments of the present disclosure provide a silicon carbide metal oxide semiconductor field effect transistor and a manufacturing method. The transistor includes first and second cells which jointly include a drain electrode layer, an ohmic contact layer, a substrate layer, an epitaxial layer, an interlayer dielectric layer, and a source electrode layer, the first cell further includes a first deep well region, a second deep well region, a first shallow well region, a second shallow well region, a two first source region, a two second source region, a first gate oxide layer, and a first polysilicon gate, and the second cell further includes a third deep well region, a fourth deep well region, a third shallow well region, a fourth shallow well region, a second gate oxide layer, a third gate oxide layer, a second polysilicon gate, and a third polysilicon gate.

Classes IPC  ?

• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
• H01L 29/16 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, mis à part les matériaux de dopage ou autres impuretés, seulement des éléments du groupe IV de la classification périodique, sous forme non combinée
• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 29/66 - Types de dispositifs semi-conducteurs

Abrégé

The present disclosure provides a robot control apparatus. The apparatus includes: a signal acquisition unit configured to obtain, in the case that a robot triggers emergency stop and if the body switch of the robot is turned on, a switch turn-on signal that the body switch of the robot is turned on; a control unit configured to output an enable release control signal; a logic processing unit configured to perform logic processing on the switch turn-on signal if the switch turn-on signal is received, then output a manual release signal, perform logic processing on the enable release control signal if the enable release control signal is received, and then output an enable release signal; and a signal output unit configured to control, if the manual release signal or the enable release signal is received, the motor of the robot to release a band brake.

Classes IPC  ?

• B25J 9/16 - Commandes à programme

Abrégé

The present disclosure provides a stator core, a magnetic levitation bearing, and a motor. The stator core is used in the magnetic levitation bearing and includes an annual yoke. The annular yoke has an inner circumferential wall and an outer circumferential wall, a plurality of pole pillars are disposed on the inner circumferential wall, and each of the plurality of pole pillars extends towards an axis of the inner circumferential wall, there is a distance D between an axis of the outer circumferential wall and the axis of the inner circumferential wall, and D≠0 is satisfied. According to the stator core, the magnetic levitation bearing, and the motor of the present disclosure, the stator core has a non-centrosymmetric structure, so that a cross-sectional area of a magnetic path in some region of the stator core is increased, which is beneficial to an improvement of an output force of the magnetic levitation bearing.

Classes IPC  ?

• H02K 1/14 - Noyaux statoriques à pôles saillants

Abrégé

The present disclosure relates to a stator of a magnetic levitation bearing, a magnetic levitation bearing, and a compressor. The stator of the magnetic levitation bearing includes a stator core (4), a stator coil (5) wound around the stator core (4), a housing (2) sleeved outside the stator core (4) and having a clearance fit or a transition fit with the stator core (4), and a potting component (3) filled between the housing (2) and the stator core (4).

Classes IPC  ?

• F16C 32/04 - Paliers non prévus ailleurs faisant usage de moyens de support magnétiques ou électriques

Abrégé

The present disclosure relates to a flange and a pump body assembly with the same. The flange includes a flange body having a shaft hole formed therein, with a back pressure groove being provided besides the shaft hole, a communication part being provided in a side wall of the back pressure groove on a side close to the shaft hole, the communication part communicating the back pressure groove with the shaft hole, and the communication part being configured to supply lubricating oil to the back pressure groove or discharge the lubricating oil from the back pressure groove. By providing the communication part in the side wall of the back pressure groove of the flange body on the side close to the shaft hole, the lubricating oil can be timely conveyed into the back pressure groove by means of the communication part.

Classes IPC  ?

• F04C 18/344 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe interne
• F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p.ex. caractéristiques de structure de l'admission ou de l'échappement

Abrégé

Provided are a method and apparatus for controlling movement of a sweeping robot, and the sweeping robot. At least one position of at least one cleaning side brush at a bottom of the sweeping robot is distributed on the basis of a Reuleaux triangle. The method includes the following steps: if it is detected that the sweeping robot is currently in a corner environment, determining a central movement trajectory of the sweeping robot according to the corner environment, wherein the central movement trajectory of the sweeping robot is consistent with that of the Reuleaux triangle (S302); and controlling the sweeping robot to move according to the central corner environment trajectory of the sweeping robot, and at the same time controlling the sweeping robot to rotate on its axis, such that the cleaning side brushes clean the corner environment (S304).

Classes IPC  ?

• A47L 11/40 - Machines à nettoyer les planchers, les tapis, les meubles, les murs ou leurs revêtements - Éléments ou parties constitutives des machines non prévus dans les groupes , ou non limités à un de ces groupes, p.ex. poignées, dispositions des interrupteurs, bords, amortisseurs ou leviers
• A47L 11/24 - Machines à balayer le plancher, actionnées par moteur

Abrégé

Some embodiments of the present disclosure provide a water softener, a humidifier base, and a humidifier. The water softener includes: a housing internally provided with a resin cavity and sequentially provided with a water inlet and a water outlet along a flowing direction of a water flow; a snap provided on the housing; and a positioning column provided on the end of the housing corresponding to the water inlet and extending toward a direction away from the housing. By providing the snap and the positioning column, when the water softener needs to be assembled, it is merely required to mount the snap and the positioning column to the corresponding parts of one humidifier; in this case, a water flow will enter the water softener through the water inlet to implement a subsequent water softening operation.

Classes IPC  ?

• C02F 5/00 - Adoucissement de l'eau; Prévention de l'entartrage; Addition à l'eau d'agents antitartre ou détartrants, p.ex. addition d'agents séquestrants
• F24F 6/12 - Humidification de l'air par dispersion d'eau dans l'air
• F24F 13/20 - Enveloppes ou couvercles

Abrégé

The present disclosure provides a rotor structure, an electric motor and a rotor manufacturing method. The rotor structure includes a plurality of rotor sheets (100) and a rotating shaft. The rotor sheets (100) are stacked in sequence along an axial direction of the rotor structure. Each of the rotor sheets (100) is provided with a shaft hole (20), a first slot (111), and first filling slots (121) at both ends of the first slot (111). The first slot (111) extends in a direction of a direct axis (3) of the rotor structure and includes slot sections (1110) at opposite sides of the shaft hole (20). The rotating shaft passes through the shaft hole (20) of the plurality of rotor sheets (100). The first slot (111), the first filling slots (121) and the rotating shaft form a first flux barrier layer (101).

Classes IPC  ?

• H02K 19/14 - Moteurs synchrones avec des enroulements supplémentaires en court-circuit pour démarrage en moteurs asynchrones
• H02K 1/24 - Noyaux rotoriques à pôles saillants
• H02K 19/10 - Moteurs synchrones pour courant polyphasé
• H02K 15/00 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques

Abrégé

-- The present disclosure relates to an IGBT driving circuit and a power conversion device. The IGBT driving circuit includes a driving chip with a first driving signal port (Vo); a driving resistor adjustment circuit connected between the first driving signal port (Vo) and a gate (G) of an IGBT, a driving resistor formed by the driving resistor adjustment circuit being adjustable in size; a peak voltage detection circuit connected to the gate (G) of the IGBT which is conductive to the first driving signal port (Vo), the peak voltage detection circuit being configured to monitor whether a peak voltage occurs when the IGBT is turned off; and a resistor adjustment control circuit connected between the peak voltage detection circuit and the driving resistor adjustment circuit and configured to reduce a resistor formed by the driving resistor adjustment circuit when the peak voltage is monitored when the IGBT is turned off.

Classes IPC  ?

• H03K 17/0812 - Modifications pour protéger le circuit de commutation contre la surintensité ou la surtension sans réaction du circuit de sortie vers le circuit de commande par des dispositions prises dans le circuit de commande
• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques

Abrégé

A strain sensor is disclosed. The strain sensor includes: a base (10) provided with a mounting recess (11); a mounting structure (20) disposed on the base (10) and located in the mounting recess (11), a preset gap (21) being formed between the mounting structure (20) and an inner surface of the mounting recess (11); a bearing structure (30) mounted in the mounting recess (11) and located outside the preset gap (21); and a wire set (40), a side of the wire set (40) being disposed on the bearing structure (30), and another side of the wire set (40) being arranged on the mounting structure (20). A robot including the strain sensor is also disclosed.

Classes IPC  ?

• G01L 1/22 - Mesure des forces ou des contraintes, en général en faisant usage des cellules électrocinétiques, c. à d. des cellules contenant un liquide, dans lesquelles un potentiel électrique est produit ou modifié par l'application d'une contrainte en utilisant des jauges de contrainte à résistance

Abrégé

A fault processing method for a displacement sensor includes: receiving a plurality of detected signals from a plurality of detecting probes and a given signal of a spare probe, wherein the detecting probes are configured to detect a displacement value of a rotation shaft of a magnetic levitation motor to obtain the detected signals, and the spare probe is configured to replace a faulty probe among the plurality of detecting probes; determining whether there is a faulty probe among the plurality of detecting probes based on the plurality of detected signals and the given signal; and connecting the given signal of the spare probe to the faulty probe corresponding to a case that a determination result is yes.

Classes IPC  ?

• G01B 21/04 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la longueur, la largeur ou l'épaisseur en mesurant les coordonnées de points
• H02K 11/21 - Dispositifs pour détecter la vitesse ou la position, ou actionnés par des valeurs de ces variables
• H02N 15/00 - Dispositifs de maintien ou de lévitation utilisant l'attraction ou la répulsion magnétique, non prévus ailleurs

Abrégé

The present disclosure provides a method and device for detecting insulation impedance of a photovoltaic inverter. The method includes: detecting, after a first path of photovoltaic input is electrically connected to the photovoltaic inverter, whether a second path of photovoltaic input needs to be electrically connected to the photovoltaic inverter; if the second path of photovoltaic input needs to be electrically connected to the photovoltaic inverter, causing the first path of photovoltaic input to stop operating, and then detecting insulation impedance of the second path of photovoltaic input; judging whether the insulation impedance of the second path of photovoltaic input satisfies a preset impedance condition; and if the insulation impedance of the second path of photovoltaic input satisfies the preset impedance condition, causing the second path of photovoltaic input to be electrically connected to the photovoltaic inverter, and causing the first path of photovoltaic input and the second path of photovoltaic input to perform grid-connected operation. The present disclosure resolves the problem in the prior art that insulation detection is inaccurate when two paths of photovoltaic input are grid-connected, such that insulation impedance detection results are more accurate, thereby increasing the safety of the inverter.

Classes IPC  ?

• G01R 27/02 - Mesure de résistances, de réactances, d'impédances réelles ou complexes, ou autres caractéristiques bipolaires qui en dérivent, p.ex. constante de temps

Abrégé

The present disclosure relates to a motor rotor, a permanent magnet motor, and an electric vehicle. The motor rotor includes a rotor core (1) and permanent magnets (3). The rotor core (1) includes mounting slots (2). The permanent magnets (3) are arranged in the mounting slots (2). An included angle between two mounting slots (2) forming a V-shaped structure in the mounting slots (2) is Δ. A numerical value of a thickness of the permanent magnets (3) is L4 when a unit thereof is mm. A numerical value of a width of the permanent magnets (3) is L5 when a unit thereof is mm. 110°≤Δ≤140°. A numerical value of Δ=(18 to 20)*L4, L5≥2*L4.

Classes IPC  ?

• H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p.ex. aimants permanents internes [IPM]

Abrégé

Disclosed are an on-grid/off-grid scheduling method and apparatus, and an energy storage power supply system. The method is applied to the system. The system includes an energy storage device; the energy storage device is connected to a direct current bus; one end of the direct current bus is connected to a power grid by means of an AC-DC module, and the other end is connected to a load. The method includes: after the energy storage device enters an off-grid operation mode, controlling an output voltage of the energy storage device to decrease once every first preset duration; and every time the output voltage of the energy storage device is controlled to decrease, obtaining an input voltage change situation of the load, and determining, according to the input voltage change situation of the load, whether to control the energy storage device to switch to an on-grid operation mode.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion

Abrégé

Disclosed are a photovoltaic power supply system and a control method thereof, and an air conditioning unit. The system includes: a photovoltaic cell panel; a direct-current bus; a DC/DC converter, one end of which is connected to the photovoltaic cell panel, and the other end of which is connected to the direct-current bus; and a switch assembly arranged in parallel with the DC/DC converter, wherein one end of the switch assembly is connected to the photovoltaic cell panel, and the other end thereof is connected to the direct-current bus, and the switch assembly is used for controlling a grid connection mode of the photovoltaic cell panel. When the switch assembly is turned off, the photovoltaic cell panel is connected to the direct-current bus by means of the DC/DC converter; and when the switch assembly is turned on, the photovoltaic cell panel is directly connected to the direct-current bus.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• F24F 11/88 - Aspects électriques, p.ex. circuits

Abrégé

The present disclosure provides a power supply circuit without a charging loop, and a power management system. The power supply circuit comprises an alternating current switch component, a photovoltaic switching component and a direct-current bus capacitor. The alternating current switch component is configured to electrically connect a live wire of a three-phase alternating current to a direct-current bus, and cause, when an alternating current is selected to charge the direct-current bus capacitor, a voltage across two ends of a direct-current bus capacitor to steadily rise to a target voltage. The photovoltaic switching component is configured to electrically connect a photovoltaic power supply to the direct-current bus, and cause, when the photovoltaic power supply is selected to charge the direct-current bus capacitor, the voltage across the two ends of the direct-current bus capacitor to steadily rise to the target voltage. The direct-current bus capacitor is electrically connected between a positive electrode and a negative electrode of the direct-current bus. When the alternating current or the photovoltaic power supply is electrically connected to the direct-current bus, the alternating current switch component or the photovoltaic switching component can control the voltage across the two ends of the direct-current bus capacitor to stably rise to the target voltage, thereby preventing causing damage to components on the direct-current bus by a large impact current generated by a rapid rise of the voltage across the two ends of the direct-current capacitor.

Classes IPC  ?

• H02J 7/06 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs
• H02J 7/35 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon avec des cellules sensibles à la lumière
• H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon

Abrégé

The present disclosure provides a soft start circuit and a power supply circuit. The soft start circuit is disposed between a negative electrode of a direct current bus capacitor and a negative terminal of a direct current power supply, so as to control, after a start begins, according to the current input by the direct current bus capacitor in a constant current module, whether to electrically connect the direct current power supply and the direct current bus capacitor; one end of the soft start circuit is further connected to a filtering protection module, so as to control, at the beginning of the start, according to the voltage output by the filtering protection module, the direct current power supply to be electrically connected to the direct current bus capacitor.

Classes IPC  ?

• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
• H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation

Abrégé

Provided are a magnetism modulating ring structure, a magnetic gear assembly, and a compound motor. The magnetism modulating ring structure includes a plurality of modulating units and a plurality of connection parts. Each two adjacent modulating units are connected by one of the plurality of connection parts to form the magnetism modulating ring structure, and the magnetism modulating ring structure is arranged within an annular gap enclosed by a first rotor structure and a second rotor structure. A groove structure is formed on one side of the modulating unit facing the first rotor structure, and two sides of the groove structure respectively form a curved boot-like part, and an edge of the curved boot-like part facing the second rotor structure has a curved contour line parallel to flux lines passing through an inside of the curved boot-like part.

Classes IPC  ?

• H02K 49/10 - Embrayages dynamo-électriques; Freins dynamo-électriques du type à aimant permanent

Abrégé

Disclosed in the present disclosure are an insulation resistance detection circuit, a resistance detection method, a converter and a photovoltaic centrifuge. The insulation resistance detection circuit includes a resistance detection module connected between a positive electrode and a negative electrode of a direct-current bus to be detected. The resistance detection module includes a first resistance bridge and a second resistance bridge arranged in parallel. The first resistance bridge is connected to the positive electrode of the direct-current bus by means of a first sampling resistor R1. The second resistance bridge is connected to the negative electrode of the direct-current bus by means of a second sampling resistor R2, and both the first sampling resistor R1 and the second sampling resistor R2 are equipped with voltage sampling chips. The resistance detection module is configured to calculate an insulation resistance value of the direct-current bus according to voltage values of the two sampling resistors before and after a first switch S is switched.

Classes IPC  ?

• G01R 31/14 - Circuits à cet effet
• G01R 27/16 - Mesure de l'impédance d'un élément ou d'un réseau dans lequel passe un courant provenant d'une autre source, p.ex. câble, ligne de transport de l'énergie
• H02S 50/10 - Tests de dispositifs PV, p.ex. de modules PV ou de cellules PV individuelles
• G08B 21/18 - Alarmes de situation

Abrégé

The present disclosure provides a control method for a current-limiting control circuit and an electrical system. The current-limiting control circuit includes a high voltage side connected with a direct-current (DC) bus, a low voltage side connected with a load, and a regulating unit connected with the high voltage side and the low voltage side, the regulating unit including at least one MOS transistor, and the control method includes: detecting current I0 of the current-limiting control circuit; determining whether the current I0 is greater than a preset current I; and determining that the current-limiting control circuit has a short circuit fault, and entering a current limiting control mode to limit a persistent growth of the current, in a case where the current I0 is greater than the preset current I.

Classes IPC  ?

• H02H 9/02 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de courant
• H02H 3/087 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge pour des systèmes à courant continu
• H02H 1/00 - CIRCUITS DE PROTECTION DE SÉCURITÉ - Détails de circuits de protection de sécurité

Abrégé

Some embodiments of the present disclosed provide a damping module allowing for mounting of a rotary wheel and a mobile apparatus. The damping module includes a bearing member, extending in a horizontal direction and having a left assembly portion and a right assembly portion spaced apart from each other; a bent arm bracket, disposed on the right assembly portion of the bearing member; a swinging bent arm, including an upper end portion, a lower end portion allowing for mounting of the rotary wheel, and a bent portion pivotally connected to the bent arm bracket; a transmission member connected with the upper end portion of the swinging bent arm; and a damping mechanism, disposed on the left assembly portion of the bearing member and connected with the transmission member.

Classes IPC  ?

• B60G 11/14 - Suspensions élastiques caractérisées par la disposition, l'emplacement ou le type des ressorts ayant des ressorts hélicoïdaux, spirales ou en bobines uniquement
• B60K 7/00 - Disposition du moteur dans ou jouxtant une roue motrice
• B62D 61/06 - Véhicules à moteur ou remorques, caractérisés par la disposition ou le nombre de roues et non prévus ailleurs, p.ex. quatre roues disposées en losange avec uniquement trois roues
• B60G 3/20 - Suspensions élastiques pour une seule roue avec plusieurs bras articulés, p.ex. parallélogramme tous les bras étant rigides

Abrégé

A method and a device for on-grid and off-grid dispatch, and an energy storage air-conditioning system are provided. The method for on-grid and off-grid dispatch includes: causing a load to be off-grid and causing an energy storage converter to supply power to the load after determining that grid is down; determining a given power and a given voltage according to a voltage and a current of the load obtained for the last time before the grid is down; and obtaining an actual voltage and an actual current outputted by the energy storage converter; and adjusting an output parameter of the energy storage converter according to the given power and the given voltage, as well as the actual voltage and the actual current outputted by the energy storage converter. It is possible to realize seamless shifting from an on-grid state to an off-grid state, thereby avoiding electric energy quality fluctuation during the shifting process and improving the stability.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 3/28 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie

Abrégé

The present disclosure relates to a method and an apparatus for processing a data flow of a positioning base station, a device and a computer readable medium. The method includes: extracting, under the condition that a data packet to be processed which is sent by the positioning base station is received, a first identifier carried in the data packet to be processed; screening out a first data packet by using the first identifier, where the first data packet is a data packet to be processed including a distance from the positioning base station to a target position; extracting a second identifier carried in the first data packet, where second identifiers carried in different data packets to be processed sent by the same positioning base station vary; and determining, under the condition that time indicated by the second identifier is target time, the first data packet as a target data packets.

Classes IPC  ?

• H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p.ex. gestion de la mobilité

Abrégé

A method and an apparatus for controlling a robot, an electronic device, and a computer-readable storage medium. The control method includes: acquiring an environmental map obtained by detecting a current environment; detecting the environmental map to acquire at least one right angle corner point in the environmental map; determining a coordinate system in which the right angle corner point is located and using the right angle corner point of which the coordinate system satisfies a preset condition as a target right angle corner point; and controlling the robot to clean the target right angle corner point.

Classes IPC  ?

• A47L 11/40 - Machines à nettoyer les planchers, les tapis, les meubles, les murs ou leurs revêtements - Éléments ou parties constitutives des machines non prévus dans les groupes , ou non limités à un de ces groupes, p.ex. poignées, dispositions des interrupteurs, bords, amortisseurs ou leviers
• G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions

Abrégé

Some embodiments of the present disclosure provide a wearable scanner. The wearable scanner includes: a scanner body and a wearable portion. A wearing space for a user to wear is formed between the scanner body and the wearable portion; the wearable portion includes at least one adjusting section configured for adjusting a length of the wearable portion; the adjusting section includes a plurality of hole structures that are disposed in a circumferential direction of the wearable portion, and a plurality of air-permeable grooves formed by hole walls of the hole structures in a matching manner are provided on a surface of the adjusting section facing the wearing space.

Classes IPC  ?

• G06K 7/10 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire

Abrégé

The present disclosure relates to an optical storage converter, a control method and device thereof, and a computer readable storage medium. The control method for the optical storage converter includes: obtaining a voltage measurement and a current measurement of a universal interface of the optical storage converter in the case where an apparatus is accessed to the universal interface, to determine whether the apparatus accessed to the universal interface is a photovoltaic system or an energy storage system; and adjusting an internal circuit of the optical storage converter correspondingly in the case where the accessed apparatus is the photovoltaic system or the energy storage system.--

Classes IPC  ?

• H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p.ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
• H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion

Abrégé

A compressor includes a drive motor and a wind wheel, wherein the drive motor includes a casing and a rotor, the rotor being rotatably arranged within the casing; the wind wheel is mounted at a first axial end of the rotor. A thrust disc is also provided at the first axial end of the rotor. An axial bearing assembly is arranged between the thrust disc and the wind wheel, and the axial bearing assembly is arranged fixedly with respect to the casing. A first air gap is formed between a first end of the axial bearing assembly and the wind wheel, and a second air gap is formed between a second end of the axial bearing assembly and the thrust disc. The air compressor reduces a tolerance accumulation caused by part cooperation between axial bearing assemblies, and more precisely ensures effective working clearances.

Classes IPC  ?

• F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p.ex. pour la ventilation
• F04D 29/051 - Equilibrages des poussées axiales
• F04D 29/08 - Joints d'étanchéité
• F04D 29/44 - Moyens de guidage du fluide, p.ex. diffuseurs
• F04D 29/58 - Refroidissement; Chauffage; Réduction du transfert de chaleur

Abrégé

The disclosure provides a defrosting control method and device and a multi-split air conditioner. The defrosting control method including: controlling the multi-split air conditioner to enter a continuous heating and defrosting mode under a condition that any external unit meets the preset defrosting condition; detecting sequentially whether the each external unit in the multi-split air conditioner is currently in a frostless state; marking directly a currently detected external unit as having finished defrosting under a condition that the currently detected external unit is currently in a frostless state; defrosting the currently detected external unit under a condition that the currently detected external unit is currently in a frosted state, and marking the currently detected external unit as having finished defrosting after defrosting; and controlling the multi-split air conditioner to exit the mode under a condition that all the external units are marked as having finished defrosting.

Classes IPC  ?

• F24F 11/42 - Dégivrage; Prévention du gel des éléments extérieurs
• F24F 11/61 - Aménagements de commande ou de sécurité caractérisés par des interfaces utilisateurs ou par la communication utilisant des minuteurs
• F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable

Abrégé

This disclosure provides a heat pump system, a control method and apparatus thereof, an air conditioning device and a storage medium, and relates to the field of heat pump technology, wherein the heat pump system includes: a valve assembly being respectively connected with an exhaust outlet and a suction inlet of a compressor, a first end of a second indoor heat exchanger, and a first end of an outdoor unit, and a second end of the second indoor heat exchanger being connected with a second end of the outdoor unit; the valve assembly being configured to control a flow direction and on-off of refrigerant to form a refrigerant loop; and a first indoor heat exchanger having a first end connected with the exhaust outlet of the compressor and a second end connected with a second connection pipeline between the second end of the second indoor heat exchanger and the second end of the outdoor unit through a first connection pipeline; and a first control valve being provided in a pipeline between the first end of the first indoor heat exchanger and the exhaust outlet of the compressor.

Classes IPC  ?

• F24F 11/41 - Dégivrage; Prévention du gel
• F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
• F24F 11/84 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
• F25B 41/20 - Disposition des soupapes, p.ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
• F25B 30/00 - Pompes à chaleur

Abrégé

The present disclosure provides an air conditioner defrosting control method and device, and a storage medium and an air conditioner. The control method includes: setting a target discharge temperature of a compressor and an initial opening degree of a throttle device when an air conditioner performs defrosting according to an outdoor ambient temperature when the air conditioner meets a defrosting condition and enters a defrosting mode; controlling a defrosting operation of the air conditioner according to the target discharge temperature of the compressor and the initial opening degree of the throttle device; and controlling the air conditioner to exit the defrosting mode when a temperature of an outdoor heart exchanger of the air conditioner reaches a set temperature value.

Classes IPC  ?

• F24F 11/42 - Dégivrage; Prévention du gel des éléments extérieurs
• F25B 47/02 - Cycles de dégivrage

Abrégé

The present disclosure provides a parameter configuration device, including a first signal modulator, a second signal modulator and an operating member electrically connected with the first signal modulator or the second signal modulator. The first signal modulator and the second signal modulator have a connection state and a separated state. In the connection state, the first signal modulating element is electrically connected with the second signal modulating element, and the first signal modulating element and the second signal modulating element enclose a configuration space for a cable to pass through In the separated state, the first signal modulator is separated from the second signal modulator. The embodiments of the present disclosure make it easier to perform the operation of parameter configuration with a low cost

Classes IPC  ?

• H01R 13/66 - Association structurelle avec des composants électriques incorporés
• H01R 13/639 - Moyens additionnels pour maintenir ou verrouiller les pièces de couplage entre elles après l'engagement
• H01R 13/502 - Socles; Boîtiers composés de différentes pièces
• H01R 13/629 - Moyens additionnels pour faciliter l'engagement ou la séparation des pièces de couplage, p.ex. moyens pour aligner ou guider, leviers, pression de gaz

Abrégé

Disclosed in the present disclosure are an energy control system, method and device, and electronic equipment. The energy control system includes a controlled system, an energy control device and a weather server. The controlled system includes power generation equipment, energy storage equipment and air conditioning equipment. The power generation equipment, the energy storage equipment and the air conditioning equipment are connected in parallel by means of a direct-current bus. The air conditioning equipment is also connected to an alternating-current power grid; and the energy control device is in communication connection with the controlled system and the weather server respectively, and is used to acquire weather forecast information in a preset future time period from the weather server and send an optimal energy flow configuration in the preset future time period to the controlled system.

Classes IPC  ?

• F24F 11/46 - Amélioration de l’efficacité électrique ou économie d’énergie électrique
• H02J 1/14 - Circuits pour réseaux principaux ou de distribution, à courant continu Équilibrage de la charge dans un réseau
• H02J 1/10 - Fonctionnement de sources à courant continu en parallèle
• F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
• G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques

Abrégé

A radial stator includes a stator core, and the stator core includes a stator outer ring. M magnetic poles are arranged on an inner circumferential wall of the stator outer ring, and are evenly distributed along the inner circumferential wall of the stator outer ring. The M magnetic poles include M1 magnetic poles arranged along the inner circumferential wall of the stator outer ring and M2 magnetic poles arranged along the inner circumferential wall of the stator outer ring; M≥2, M1≥1, and M2≥1; the M1 magnetic poles and the M2 magnetic poles are arranged on two sides of the stator outer ring with respect to a radial direction thereof, respectively; each of the M1 magnetic poles is provided with a first winding; and each of the M2 magnetic poles is provided with a second winding; and a coil turn N1 of the first winding is greater or less than a coil turn N2 of the second winding.

Classes IPC  ?

• F16C 32/04 - Paliers non prévus ailleurs faisant usage de moyens de support magnétiques ou électriques
• H02K 7/09 - Association structurelle avec des paliers avec des paliers magnétiques

Abrégé

Some embodiments of the present disclosure provides a head shaking device and a fan. The head shaking device includes a fixing assembly; and a rotating assembly, which rotates relative to the fixing assembly in a reciprocating manner, wherein one of the fixing assembly and the rotating assembly includes at least one first connecting structure, the other includes at least one second connecting structure, and the first connecting structure is rotatably clamped with the second connecting structure.

Classes IPC  ?

• F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analogues; Equilibrage
• F04D 19/00 - Pompes à flux axial spécialement adaptées aux fluides compressibles

Abrégé

The disclosure provides a control method, a control apparatus and a cloud-based control system, and belongs to the technical field of cloud-based control. The control method includes: receiving first identification information sent by a client, wherein the first identification information comprises a first identifier and first position information of a device to be controlled; verifying whether the first identifier corresponds to the first position information; if the first identifier corresponds to the first position information, sending a verification requirement to the client, wherein the verification requirement is used for requesting a user to control the device to be controlled at a position of the device to be controlled; receiving a control instruction for the device to be controlled sent by a current control device; determining, according to the verification requirement and the control instruction, whether the client has control permission to the device to be controlled; if the client has the control permission, receiving a remote control instruction sent by the client, and controlling the device to be controlled through the current control device.

Classes IPC  ?

• H04L 67/125 - Protocoles spécialement adaptés aux environnements propriétaires ou de mise en réseau pour un usage spécial, p.ex. les réseaux médicaux, les réseaux de capteurs, les réseaux dans les véhicules ou les réseaux de mesure à distance en impliquant la commande des applications des terminaux par un réseau
• G05B 15/02 - Systèmes commandés par un calculateur électriques
• H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p.ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]

Abrégé

The present disclosure provides a method for switching scanner buttons, an apparatus, a storage medium, and a scanner. The method comprises: scanning a barcode and obtaining barcode data; determining whether the barcode data matches preset button switching barcode data; in a case that the barcode data matches the button switching barcode data, switching an active button bit for waking up a scanner from a button at the current side to a button at the other side.

Classes IPC  ?

• G06K 7/10 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire
• G06K 7/14 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire utilisant la lumière sans sélection des longueurs d'onde, p.ex. lecture de la lumière blanche réfléchie

Abrégé

The disclosure provides a networking method and a networking device for an air conditioner, and a terminal, wherein the networking method includes: acquiring indoor unit information of a target air conditioner indoor unit of an air conditioner by a remote controller; matching an air conditioner outdoor unit corresponding to the target air conditioner indoor unit; and establishing a communication connection between the target air conditioner indoor unit and the matching air conditioner outdoor unit.

Classes IPC  ?

• F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité
• F24F 11/32 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p.ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques
• F24F 11/58 - Commande à distance par internet

Abrégé

The disclosure relates to the field of intelligent home, and particularly to an indoor monitoring method, device and system, a storage medium and a camera device. The method includes: controlling a camera device to acquire monitoring images at consecutive times in a room; identifying a first monitoring image at a previous time and a second monitoring image at a current time, and identifying items corresponding to the first monitoring image and the second monitoring image and positions of the items, respectively; determining whether a position of an item changes according to the position of the item in the first monitoring image and the position of the item in the second monitoring image; and generating item record information of the item when it is determined that the position of the item changes, wherein the item record information represents movement of the item in the room. In this way, the item record information helps the user to record the relevant information of the item, so as to ensure that the user can quickly find the corresponding item.

Classes IPC  ?

• G08B 13/196 - Déclenchement influencé par la chaleur, la lumière, ou les radiations de longueur d'onde plus courte; Déclenchement par introduction de sources de chaleur, de lumière, ou de radiations de longueur d'onde plus courte utilisant des systèmes détecteurs de radiations passifs utilisant des systèmes de balayage et de comparaison d'image utilisant des caméras de télévision
• H04N 23/667 - Changement de mode de fonctionnement de la caméra, p. ex. entre les modes photo et vidéo, sport et normal ou haute et basse résolutions
• H04N 23/695 - Commande de la direction de la caméra pour modifier le champ de vision, p. ex. par un panoramique, une inclinaison ou en fonction du suivi des objets
• H04N 23/611 - Commande des caméras ou des modules de caméras en fonction des objets reconnus les objets reconnus comprenant des parties du corps humain

Abrégé

Disclosed are a pump body assembly and a fluid machine. The pump body assembly comprises a rotation shaft and a piston provided with a sliding hole, wherein at least a portion of the rotation shaft penetrates into the sliding hole, during rotation of the piston with the rotation shaft, and the sliding hole is in sliding fit with the rotation shaft, the piston is provided with a piston communication passage communicated with the sliding hole. The pump body assembly can solve the problem that the piston impedes a flow of oil liquid during use of a rotary cylinder compressor.

Classes IPC  ?

• F04B 27/08 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal

Abrégé

Disclosed are a semiconductor device and a manufacturing method therefor. The semiconductor device includes a semiconductor substrate, an epitaxial layer grown on a side of the semiconductor substrate; a quantum dot transport layer disposed on the epitaxial layer; and a gate oxide layer disposed on the quantum dot transport layer. With this arrangement, the semiconductor device provided by the present disclosure may reduce a threshold voltage while ensuring gate electrode reliability.

Classes IPC  ?

• H01L 29/66 - Types de dispositifs semi-conducteurs
• H01L 29/267 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, des éléments couverts par plusieurs des groupes , , , , dans différentes régions semi-conductrices
• H01L 29/12 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués
• H01L 29/40 - Electrodes
• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 21/02 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives
• H01L 21/04 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives les dispositifs présentant au moins une barrière de potentiel ou une barrière de surface, p.ex. une jonction PN, une région d'appauvrissement, ou une région de concentration de porteurs de charges

Abrégé

The present application discloses a fin structure and a heat exchanger, wherein the fin structure includes: a fin base, the fin base having a tube hole for a heat exchange tube passing through, and the fin base being a corrugated fin; and a plurality of convex parts, the convex part being disposed on the fin base, and the plurality of convex parts surrounding an outer circumference of the tube hole. The fin structure and heat exchanger according to the present application can effectively improve a heat exchange effect of the fin and enhance a heat exchange performance of the heat exchanger.

Classes IPC  ?

• F28F 1/32 - Eléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p.ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire et s'étendant transversalement les moyens ayant des parties engageant d'autres éléments tubulaires

Abrégé

Disclosed are an interaction method for establishing a device linkage scene, a storage medium, and an electronic device. The method includes: in a displayed schematic diagram of a network configuration scene including electrical devices configured in a same network, selecting electrical devices in turn through a connecting line to form a connection track; setting a triggering sequence of linking the electrical devices in a linkage scene represented by the connection track according to a connection sequence; selecting an electrical device on the connection track and setting an operating parameter of the electrical device in the linkage scene; and finally saving relevant information of the linkage scene. In this way, objectives of an intuitive display, simply and quickly setting a linkage scene, and improving user experience are achieved, linkage operation steps are reduced, and a user may conveniently and quickly set a smart home linkage.

Classes IPC  ?

• H04L 41/12 - Découverte ou gestion des topologies de réseau
• H04L 41/14 - Analyse ou conception de réseau

Abrégé

Disclosed are an icon arrangement method, an icon arrangement apparatus, a user terminal, and a storage medium. The method includes: determining a target interface; determining at least one first icon in the target interface and an arrangement position of each first icon in the target interface; determining, from a plurality of second icons on the user terminal, a target icon matching the first icon; determining a target position, corresponding to the target icon, in an interface of the user terminal based on the arrangement position corresponding to the first icon that matches the target icon; and arranging the target icon in the interface of the user terminal based on the target position. In this way, automatic arrangement of icons in the interface of the user terminal can be achieved, thereby improving user experience.

Classes IPC  ?

• G06F 3/04845 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] pour la commande de fonctions ou d’opérations spécifiques, p.ex. sélection ou transformation d’un objet, d’une image ou d’un élément de texte affiché, détermination d’une valeur de paramètre ou sélection d’une plage de valeurs pour la transformation d’images, p.ex. glissement, rotation, agrandissement ou changement de couleur
• G06F 3/04817 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p.ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comport utilisant des icônes
• G06F 3/0482 - Interaction avec des listes d’éléments sélectionnables, p.ex. des menus

Abrégé

Disclosed are a sleep detection method and an apparatus, an electronic device and a storage medium. The sleep detection method includes: collecting pressure information from a bed; detecting the pressure information collected within a continuous preset duration, and determining whether the pressure information includes a sleep parameter of a body sign from a sleeping human; and if the pressure information includes the parameter of the sleeping human body sign, turning on a sleep detection function to perform the sleep detection. The sleep detection method and the apparatus, the electronic device and the storage medium can be applied to an apparatus having a sleep detection function, such that the sleep detection function in the apparatus having the sleep detection function is automatically turned on without a manual operation of a user, thereby saving time and labor.

Classes IPC  ?

• A61B 5/00 - Mesure servant à établir un diagnostic ; Identification des individus

Abrégé

Disclosed is a photovoltaic air conditioning system, which includes a photovoltaic cell array; an air conditioning unit, comprising a first cabinet, a first inverter module and a variable frequency compressor, wherein the first inverter module and the variable frequency compressor are installed in the first cabinet, and the first inverter module is configured to supply power to the variable frequency compressor; a current conversion unit, comprising a second cabinet, a rectifier module and a second inverter module, wherein the second cabinet resides outside of the first cabinet, the rectifier module and the second inverter module are installed in the second cabinet.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• F24F 11/88 - Aspects électriques, p.ex. circuits
• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p.ex. module CA
• H02S 40/42 - Moyens de refroidissement

Abrégé

Disclosed are an MPS diode device and a preparation method therefor. The MPS diode device comprises a plurality of cells arranged in parallel, wherein each cell comprises a cathode electrode, and a substrate, epitaxial layer, buffer layer, and anode electrode that are formed in succession on the cathode electrode; two active regions are formed on the side of the epitaxial layer away from the substrate; the width of forbidden band of the buffer layer is greater than the width of forbidden band of the epitaxial layer, and a material of the buffer layer and a material of the epitaxial layer are allotropes; and first openings are formed at the positions in the buffer layer opposite to the active regions, and an ohmic metal layer is formed in the first openings.

Classes IPC  ?

• H01L 29/872 - Diodes Schottky
• H01L 29/16 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, mis à part les matériaux de dopage ou autres impuretés, seulement des éléments du groupe IV de la classification périodique, sous forme non combinée
• H01L 29/12 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués
• H01L 29/45 - Electrodes à contact ohmique
• H01L 21/02 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives
• H01L 21/04 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives les dispositifs présentant au moins une barrière de potentiel ou une barrière de surface, p.ex. une jonction PN, une région d'appauvrissement, ou une région de concentration de porteurs de charges
• H01L 29/66 - Types de dispositifs semi-conducteurs

Abrégé

A purifying device, including: an air guiding part provided with an air passage, a negative ion generator, and an air guiding cover. The negative ion generator includes an emitting head, and the emitting head is arranged to face the air passage. The air guiding part is provided with a first position limiting structure disposed on an inner wall of the air passage, and the first position limiting structure is provided with a position limiting groove configured to receive the emitting head. The air guiding cover is arranged on a top of the inner wall of the air passage and configured to press and cover the position limiting groove, and the inner wall of the air passage is configured to support the air guiding cover.

Classes IPC  ?

• B03C 3/86 - Moyens pour tenir les électrodes
• B03C 3/36 - Séparation par effet électrostatique des particules dispersées des gaz ou de la vapeur, p.ex. dans de l'air - Parties constitutives ou accessoires, ou leur fonctionnement commandant le débit de gaz ou de vapeurs
• B03C 3/41 - Electrodes d'ionisation
• B01D 53/32 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par effets électriques autres que ceux prévus au groupe

Abrégé

Embodiments of the present disclosure provide a method and an apparatus for scheduling a service, an electronic device, and a storage medium. The method includes: a service scheduling task is acquired, the service scheduling task is composed of a first identifier corresponding to a service request, and a second identifier corresponding to a device receiving the service request; a third identifier corresponding to a service associated with the service scheduling task is searched in a preset service scheduling knowledge graph; at least one service scheduling sequence is generated on the basis of the service scheduling task and the third identifier corresponding to the service; a target service scheduling sequence is determined from the at least one service scheduling sequence; and the device is notified to access a service corresponding to the third identifier in the target service scheduling sequence.

Classes IPC  ?

• G06F 9/48 - Lancement de programmes; Commutation de programmes, p.ex. par interruption

Abrégé

Provided are a control method and apparatus for increasing the amount of a circulating refrigerant, and an air conditioner. The control method includes: when a refrigerating capacity need is equivalent to a heating capacity need in the operation of an air-conditioning system, determining whether the discharge temperature of a compressor is greater than a preset safety alert value; if the discharge temperature of the compressor is greater than the safety alert value, adjusting the frequency of a fan of an outdoor heat exchanger; and when the discharge temperature of the compressor is not greater than the safety alert value, controlling to stop the adjustment of the frequency of the fan, and maintaining the air-conditioning system to operate at the adjusted current frequency of the fan.

Classes IPC  ?

• F24F 11/871 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’absorption ou la restitution de chaleur dans des éléments extérieurs en commandant des ventilateurs extérieurs
• F24F 11/38 - Diagnostic des défaillances
• F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable
• F24F 11/77 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de l’apport en air traité, p.ex. commande de la pression pour la commande du débit d'air ou de la vitesse de l’air en commandant la vitesse de rotation des ventilateurs
• F24F 11/84 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
• F24F 11/88 - Aspects électriques, p.ex. circuits
• F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression

Abrégé

A single-stage enthalpy enhancing rotary compressor and an air conditioner having same. The single-stage enthalpy enhancing rotary compressor includes: at least one single-stage cylinder, a rotator, an upper flange, and a lower flange. The rotator is arranged inside the cylinder and is rotatable, a compression chamber is formed between the rotator and an inner peripheral wall of the cylinder, a vapor injection opening is defined in at least one of the upper flange the lower flange, and the vapor injection opening is configured to supply gas outside the compressor to the compression chamber directly. According to the present disclosure, two-stage compression is realized without adding an extra cylinder, thereby effectively enhancing a circulation of refrigerant, improving cooling performance of the air conditioner under high environmental temperatures.

Classes IPC  ?

• F04C 29/04 - Chauffage; Refroidissement; Isolation thermique
• F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
• F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p.ex. caractéristiques de structure de l'admission ou de l'échappement
• F25B 31/02 - Groupes moto-compresseurs

Abrégé

A continuous heating control system and method, and an air-conditioning device. The system includes a defrosting solenoid valve (1) arranged on a bypass pipeline, wherein one end of the bypass pipeline is connected to an oil separator (2), and the other end of the bypass pipeline is connected to an outdoor heat exchanger (3); and a heating structure which is arranged at the bottom of a gas separator (4) and used for heating the gas separator (4).

Classes IPC  ?

• F25B 47/02 - Cycles de dégivrage
• F25B 13/00 - Machines, installations ou systèmes à compression, à cycle réversible

Abrégé

Provided are a networking and positioning method, system and device, and a storage medium. The method comprises: acquiring, by means of Bluetooth communication, Bluetooth broadcast positioning data broadcast by a positioning master base station in a preset positioning region, wherein a positioning beacon and the positioning master base station are each provided with a Bluetooth communication device; and networking and positioning the positioning beacon on the basis of the Bluetooth broadcast positioning data. A positioning beacon modulates UWB communications by means of Bluetooth communication so as to realize parallel positioning of a large-area base station and a plurality of positioning beacons, and can also acquire the best positioning region and a positioning and networking phase cycle of each positioning beacon by means of Bluetooth communication on a positioning master base station, so as to realize quick networking and positioning, and thereby avoiding the occupation of the communication time of UWB positioning by means of acquisition using UWB communication, so as to realize quick automatic networking of the positioning beacon, automatically acquire a positioning cycle rule of the positioning beacon, increase the positioning speed, increase the number of positionable beacons, and solve the problem of local restrictions of a base station.

Classes IPC  ?

• H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p.ex. gestion de la mobilité
• H04W 4/80 - Services utilisant la communication de courte portée, p.ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie

Abrégé

The present disclosure relates to the technical field of data anomaly detection and alarm, and more particularly, to a data anomaly statistics and alarm method and apparatus, and an electronic device, which effectively relieve the problem of alarm missing in the related technologies, thereby effectively avoiding the loss of enterprises due to alarm missing, the method includes: acquiring a detection time and a detection result of each of a plurality of data respectively through detecting; counting the number of target data in a current time window, and generating an alarm signal to prompt in response to the number of target data obtained by the counting being greater than a preset number threshold corresponding to a quality level of the data; moving the current time window backward according to a stepping duration included in an obtained stepping duration setting rule corresponding to the quality level of the data, and the current time window moved backward is used as a new current time window.

Classes IPC  ?

• G06F 21/55 - Détection d’intrusion locale ou mise en œuvre de contre-mesures

Abrégé

A motor includes a housing, an impeller and a diffuser in the housing, a rotor assembly and a stator assembly, the motor has an air inlet on the housing and an air outlet, the impeller is disposed adjacent to the air inlet and is connected to the rotor assembly, the diffuser is located downstream of the impeller, the stator assembly is located downstream of the diffuser, the housing includes a front housing and a rear housing connected to each other, a first air duct is enclosed among a rear inner wall of the front housing, a front inner wall of the rear housing and the diffuser and in communication with an outlet of the impeller and the air outlet, and an inner diameter size of the rear end of the rear inner wall is less than or equal to that of the front end of the front inner wall.

Classes IPC  ?

• F04D 29/44 - Moyens de guidage du fluide, p.ex. diffuseurs
• H02K 9/06 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
• H02K 7/14 - Association structurelle à des charges mécaniques, p.ex. à des machines-outils portatives ou des ventilateurs
• H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement

Abrégé

A single-phase permanent magnet synchronous motor and dust collector. The single-phase permanent magnet synchronous motor includes a plurality of stator teeth, the plurality of stator teeth include at least: a first-type and second-type stator tooth; the first-type and second-type stator teeth enclose an annular working cavity for accommodating a rotor part, where the size of a central angle corresponding to a first contour line of an end face of the first-type stator tooth facing the rotor part is different from the size of a central angle corresponding to a second contour line of an end face of the second-type stator tooth facing the rotor part The motor has a significantly reduced cogging torque, a greatly reduced torque ripple, and an obviously increased motor output torque. The single-phase permanent magnet synchronous motor is small in size, light in weight, simple in structure, convenient for large-scale manufacture and low in manufacturing cost.

Classes IPC  ?

• H02K 1/27 - Noyaux rotoriques à aimants permanents
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 19/04 - Moteurs synchrones pour courant monophasé

Abrégé

A drying air duct, a clothing treatment device and a method for cleaning a drying air duct are provided. The drying air duct includes a condensing section air duct, a heating section air duct and a fan; the fan is provided at a connection position of the condensing section air duct and the heating section air duct, a cleaning device is provided in the condensing section air duct, the cleaning device is provided at an end of the condensing section air duct adjacent to the fan and is capable of cleaning a side of the condensing section air duct away from the fan. The drying air duct can effectively clean the pipe sudden expansion area of the condensing section air duct, preventing the accumulation of soft flocks in the condensing section air duct.

Classes IPC  ?

• D06F 58/45 - Nettoyage ou désinfection de parties des machine, p.ex. des échangeurs de chaleur ou des filtres
• D06F 58/24 - Agencements pour la condensation
• D06F 58/26 - Systèmes de chauffage, p.ex. pour le chauffage au gaz
• D06F 33/74 - Réaction à un fonctionnement anormal de la machine, p.ex. mauvais fonctionnement des pompes
• D06F 33/69 - Commande du nettoyage ou de la désinfection de parties des machines lavantes-séchantes, p.ex. des cuves

Abrégé

The disclosure relates to the technical field of communications, and in particular, to a method for establishing a communication connection after a device is offline and a smart home system. The method for establishing the communication connection after the device is offline comprises: whether a first device is in an offline state in a Wi-Fi network under a wireless router is determined; when the first device is in the offline state, the first device is connected to at least one second device in Wi-Fi connection with the wireless router; and the first device establishes a communication connection with the wireless router by means of the second device. According to the method provided by the disclosure, an offline terminal can establish a communication connection with the wireless router by means of other terminals under the wireless router.

Classes IPC  ?

• H04W 76/19 - Rétablissement de connexion
• H04W 76/14 - Gestion de la connexion Établissement de la connexion Établissement de la connexion en mode direct
• H04W 4/80 - Services utilisant la communication de courte portée, p.ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie

Abrégé

The present disclosure discloses a device binding method and device, used to resolve the issue of the prior art in which the operation of controlling a smart device in a certain position is cumbersome. The method of embodiments of the present disclosure comprises: a user terminal sending target address information to a server, the server encrypting the target address information, generating a verification password, and sending the verification password to the user terminal; the user terminal sending, by means of a transmission device, the verification password to a device to be bound; the device sending the received verification password and a device identifier of the device to the server; and if the verification password sent by the device is the same as the verification password generated by the server, the server binding the target address information corresponding to the received verification password to the device identifier.

Classes IPC  ?

• H04L 9/40 - Protocoles réseaux de sécurité

Abrégé

Disclosed are a method and device for recognizing a two-dimensional bar code for improving the efficiency of recognizing the two-dimensional bar code. The method comprises: a relative position of a household appliance and a terminal device is determined during network configuration of the household appliance; a display parameter for displaying the two-dimensional bar code is determined according to the relative position, wherein the display parameter comprises a size of the two-dimensional bar code to be displayed and the two-dimensional bar code carries device information of the household appliance; the display parameter is sent to the household appliance to enable the household appliance to display a two-dimensional bar code picture according to the display parameter; and the two-dimensional bar code picture is recognized to obtain the device information of the household appliance.

Classes IPC  ?

• G06K 19/06 - Supports d'enregistrement pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques caractérisés par le genre de marque numérique, p.ex. forme, nature, code
• G06K 7/14 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire utilisant la lumière sans sélection des longueurs d'onde, p.ex. lecture de la lumière blanche réfléchie

Abrégé

Disclosed are a magnetic bearing, a compressor and an air conditioner. The magnetic bearing includes a radial stator, wherein the radial stator has a plurality of stator teeth extending inwardly in a radial direction thereof; two axial stators are arranged on two axial sides of the stator teeth, respectively; and radial control coils are wound on the stator teeth, each radial control coil being located outside an area of the stator teeth covered oppositely by the two axial stators. The magnetic bearing, the compressor and the air conditioner can effectively reduce the degree of coupling between a radial electromagnetic control magnetic circuit and an axial electromagnetic control magnetic circuit, and reduce the control difficulty of the magnetic bearing.

Classes IPC  ?

• F16C 32/04 - Paliers non prévus ailleurs faisant usage de moyens de support magnétiques ou électriques
• F25B 31/02 - Groupes moto-compresseurs

Abrégé

Some embodiments of the present disclosure provide a humidifier, the humidifier includes: a humidifier body, provided with a first air inlet; and an inner tub, provided in the humidifier body and internally provided with an air passage, a fan being provided in the air passage, the inner tub being provided with a second air inlet, the second air inlet and the first air inlet being communicated with an air inlet of the fan, and the portion of the inner tub above the second air inlet being provided with a blocking surface, which is provided opposite to at least a part of the first air inlet.

Classes IPC  ?

• F24F 6/14 - Humidification de l'air par dispersion d'eau dans l'air en utilisant des buses
• F24F 13/20 - Enveloppes ou couvercles
• F24F 8/50 - Traitement, p.ex. purification, de l'air fourni aux locaux de résidence ou de travail des êtres humains autrement que par chauffage, refroidissement, humidification ou séchage par odorisation

Abrégé

The present disclosure discloses an interface service function monitoring method and system based on data acquisition. The method includes the following steps: initiating, by a monitoring device, a service function monitoring request for an interface; determining whether the interface makes a response to the monitoring request; in a case that a response is made, determining whether the response content of the interface is expected; in a case that an abnormality occurs, analyzing, according to abnormality information, a cause of the abnormality, forming an abnormality analysis report, storing the abnormality information and the abnormality analysis report to a target server, and sending, by the target server, the abnormality information and the abnormality analysis report to an administrator; and determining, by the administrator, at least one of current service function states of the interface according to a monitoring record and the abnormality analysis report which are stored in the target server.

Classes IPC  ?

• H04L 43/0823 - Erreurs, p.ex. erreurs de transmission
• G06F 8/38 - Création ou génération de code source pour la mise en œuvre d'interfaces utilisateur
• G06F 9/451 - Dispositions d’exécution pour interfaces utilisateur
• G06F 11/36 - Prévention d'erreurs en effectuant des tests ou par débogage de logiciel

Abrégé

A data acquisition system and a control method, apparatus, and device therefor, and a medium. The data acquisition system comprises: a signal transmission line, the signal transmission line having multiple first signal delay units connected in series, and the output end of each of the first signal delay units forming an acquisition point; multiple acquisition units, the acquisition units being connected to the acquisition points of the first signal delay units to acquire signals at the acquisition points; a clock unit, configured to generate a control signal; a comparison unit, configured to compare the period of the control signal with the period of a standard signal, and generate an adjustment signal according to the comparison result; and an adjustment unit, configured to adjust a power supply voltage for the signal transmission line and the clock unit according to the adjustment signal, so that the ratio of the period of the control signal to the period of the standard signal meets a set threshold range.

Classes IPC  ?

• G06F 1/00 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES - Détails non couverts par les groupes et
• G06F 1/14 - Dispositions pour le contrôle du temps, p.ex. horloge temps réel
• G06F 1/10 - Répartition des signaux d'horloge
• G06F 1/3206 - Surveillance d’événements, de dispositifs ou de paramètres initiant un changement de mode d’alimentation

Abrégé

The present disclosure relates to the technical field of smart home, and provides a direct current load response control method and device, and a direct current electric appliance. The direct current load response control method of the present disclosure comprises: monitoring a utilization voltage of a direct current load; determining whether the utilization voltage is within a response interval; and controlling the operation of the direct current load according to the determination result and the type of the direct current load.

Classes IPC  ?

• H02J 1/14 - Circuits pour réseaux principaux ou de distribution, à courant continu Équilibrage de la charge dans un réseau
• G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques

Abrégé

A compressor and an air conditioning system. The compressor includes a low-pressure-stage compressor body and a high-pressure-stage compressor body, where the low-pressure-stage compressor body is provided with a low-pressure-stage suction port and a low-pressure-stage exhaust port, the high-pressure-stage compressor body is provided with a high-pressure-stage suction port and a high-pressure-stage exhaust port, a communication pipeline is arranged between the low-pressure-stage exhaust port and the high-pressure-stage suction port, the low-pressure-stage suction port communicates with a low-pressure-stage gas source, and the high-pressure-stage suction port has a first state of communication with the low-pressure-stage exhaust port and a second state of communication with the low-pressure-stage gas source.

Classes IPC  ?

• F04C 23/02 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs d'entraînement particuliers ou leurs adaptations à cet effet
• F25B 31/02 - Groupes moto-compresseurs
• F04C 18/16 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement extérieur, c. à d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p.ex. du type ayant la forme d'un chevron, du type à vis

Abrégé

The present disclosure provides a pump body assembly, a heat exchange apparatus, a fluid machine and an operating method thereof. The pump body assembly includes a piston, a shaft, a piston sheath, and a cylinder. The shaft drives the piston to rotate and reciprocate within the piston sheath while rotating. The piston sheath is located in the cylinder, and a compression chamber is defined between an outer circumferential wall of the piston and an inner wall of the cylinder. A pressure relief recess is defined in the outer circumferential wall of the piston or the inner wall of the cylinder at a position corresponding to the compression chamber.

Classes IPC  ?

• F04C 18/22 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à axe interne, avec mouvement relatif des organes coopérants dans le même sens aux points d'engagement, ou avec l'un des organes coopérants fixe et l'organe interne ayant plus de dents ou de parties équivalentes de prise que l'organe externe
• F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes

Abrégé

The present disclosure relates to a field of chip technology, and discloses a three-phase inverter power chip and a preparation method therefor. The preparation method includes: forming active areas on a substrate and an isolation area located outside the active areas; forming a source electrode, a drain electrode and a gate electrode of a transistor in each active area; forming a first bond pad, second bond pads, third bond pads and fourth bond pads in the isolation area; the source electrode, the drain electrode and the gate electrode of the chip being extended to the first bond pad, the second bond pads, the third bond pads or the fourth bond pads corresponding thereto; and electrically connecting the source electrode, the drain electrode and the gate electrode of the transistor to the first bond pad, the second bond pads, the third bond pads or the fourth bond pads corresponding thereto.

Classes IPC  ?

• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 23/522 - Dispositions pour conduire le courant électrique à l'intérieur du dispositif pendant son fonctionnement, d'un composant à un autre comprenant des interconnexions externes formées d'une structure multicouche de couches conductrices et isolantes inséparables du corps semi-conducteur sur lequel elles ont été déposées
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• H01L 23/528 - Configuration de la structure d'interconnexion
• H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif

Abrégé

A resource scheduling method and system, and a computer-readable storage medium are provided. The method comprises: a control instruction inputted by a user (S101) is acquired; on the basis of the control instruction, an intended device (S102) is determined; in the case where the intended device is not able to be started, with regard to each function of the intended device, a constructed knowledge graph is queried for alternative devices associated with the function, the knowledge graph having a plurality of functions stored therein as well as devices associated with the plurality of functions (S103, S105); and a device to be started is determined from all the alternative devices and starting the determined device (S106). In the resource scheduling method, in the case where an intended device specified by a user is not able to be started, alternative devices are appropriately determined.

Classes IPC  ?

• G06F 9/50 - Allocation de ressources, p.ex. de l'unité centrale de traitement [UCT]
• G06F 9/48 - Lancement de programmes; Commutation de programmes, p.ex. par interruption

Abrégé

The present disclosure provides a refrigeration system and a refrigerated storage including the same, relating to the technical field of refrigeration equipment, and solving the technical problems of a high compressor pressure ratio, a reduced refrigeration coefficient and a high exhaust temperature in a refrigerated storage. The refrigeration system includes at least two sets of refrigerant compression devices, a refrigerant evaporation device and a flow path switching valve set, wherein all the refrigerant compression devices are fluidly connected to the flow path switching valve set; the flow path switching valve set is configured to control the refrigerant compression devices by switching the flow path switching valve set to supply a refrigerant to a refrigerant evaporation in an alternative manner or in series. According to the technical solution provided by the present disclosure, double-temperature high-efficiency refrigeration is achieved, and the energy efficiency of the refrigeration system is improved.

Classes IPC  ?

• F25B 5/02 - Machines, installations ou systèmes à compression, avec plusieurs circuits d'évaporateurs, p.ex. pour faire varier la puissance frigorifique disposés en parallèle
• F25B 5/04 - Machines, installations ou systèmes à compression, avec plusieurs circuits d'évaporateurs, p.ex. pour faire varier la puissance frigorifique disposés en série
• F25B 41/20 - Disposition des soupapes, p.ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
• F25B 41/40 - Agencements de conduites de fluide

Abrégé

Disclosed in the present invention are a zero-load output non-stop control method and apparatus, and a unit. The apparatus comprises: a three-way valve, provided at an exhaust port of a compressor; a mixing tank, provided between an air suction port of the compressor and a condenser and used for mixing a refrigerant discharged by the compressor with a refrigerant throttled by the condenser; a first electronic expansion valve, provided on a first pipeline from the condenser to the mixing tank and sued for controlling the amount of the refrigerant throttled by the condenser and entering the mixing tank; and an electromagnetic valve, provided on a second pipeline between the three-way valve and the mixing tank and used for controlling the amount of the refrigerant discharged by the compressor and directly entering the mixing tank.

Classes IPC  ?

• F25B 1/047 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur rotatif du type à vis
• F25B 41/20 - Disposition des soupapes, p.ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
• F25B 41/31 - Soupapes de détente

Abrégé

Disclosed is a smart magic cube controller. The smart magic cube controller includes: a controller body (1), the controller body (1) has a plurality of surfaces, and at least one surface of the controller body (1) is configured to be a display module (2); an posture sensing module (3); and a control module (4) in signal connection with the posture sensing module (3), wherein the control module (4) is configured to determine a current top surface of the controller body (1) according to placement state information collected by the posture sensing module (3), and transmits, according to the determined current top surface, a scene mode control instruction corresponding to the current top surface, and when the display module (2) is located on a surface, other than the current top surface and the bottom surface of the controller body (1), the control module (4) is configured to control a display picture of the display module (2) to be displayed upright. The smart magic cube controller is simple to operate and convenient to use; the display module (2) is arranged on a surface of the controller body (1), such that scene mode content of corresponding surfaces can be displayed; and a display picture of the display module (2) can always be displayed upright, thereby facilitating viewing and identifying.

Classes IPC  ?

• G05B 19/418 - Commande totale d'usine, c.à d. commande centralisée de plusieurs machines, p.ex. commande numérique directe ou distribuée (DNC), systèmes d'ateliers flexibles (FMS), systèmes de fabrication intégrés (IMS), productique (CIM)
• G05B 15/02 - Systèmes commandés par un calculateur électriques
• A63F 9/08 - Puzzles pourvus d'éléments mobiles l'un par rapport à l'autre

Abrégé

The present disclosure relates to a method for provisioning of a smart device, system, and readable medium; in the present disclosure, a provisioning request used for obtaining provisioning information is sent to a server; in a case that the provisioning information returned by the server is received, then the provisioning information is sent to the smart device by a wireless means so that the smart device establishes a communications connection with the server according to the provisioning information; after obtaining the provisioning information from the server, the provisioning information is sent to the smart device by the wireless means; the smart device reuses the provisioning information to pass server authentication and establish the communications connection with the server.

Classes IPC  ?

• H04W 48/16 - Exploration; Traitement d'informations sur les restrictions d'accès ou les accès
• H04L 41/0806 - Réglages de configuration pour la configuration initiale ou l’approvisionnement, p.ex. prêt à l’emploi [plug-and-play]

Abrégé

A method for controlling an electrical appliance, and a non-transitory computer-readable storage medium. The control method comprises: receiving a voice control instruction (S101); when the identity of a user who issued the voice control instruction is determined to be a child, acquiring a child knowledge graph (S102); when determined that a control object is a first electrical appliance, determining whether a knowledge expression corresponding to the first electrical appliance exists in the child knowledge graph (S103); if a knowledge expression corresponding to the first electrical appliance doesn't exist in the child knowledge graph, then not responding to the voice control instruction; otherwise, carrying out processing on the voice control instruction according to the knowledge expression corresponding to the first electrical appliance in the child knowledge graph (S104).

Classes IPC  ?

• G10L 17/22 - Procédures interactives; Interfaces homme-machine
• G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques

Abrégé

The present disclosure discloses a human detection method and device, an electronic apparatus, and a storage medium. The method includes: a millimeter-wave radar signal of a target environment (101) is obtained; information of a moving point in the target environment (102) is extracted from the millimeter-wave radar signal; a micro-Doppler feature of each target in the target environment (103) is determined according to the information of the moving points in the target environment, wherein the target is formed by at least one moving point; and a target whose category is human in the target environment (104) is identified according to the micro-Doppler feature of each target in the target environment. The millimeter-wave radar technology is combined with artificial intelligence technology, so as to enable human detection in the target environment without invading human privacy, thus providing the possibility of achieving automatic control, monitoring and other operations of the target environment.

Classes IPC  ?

• G01S 13/58 - Systèmes de détermination de la vitesse ou de la trajectoire; Systèmes de détermination du sens d'un mouvement
• G01S 7/41 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe utilisant l'analyse du signal d'écho pour la caractérisation de la cible; Signature de cible; Surface équivalente de cible

Abrégé

An accidental touch prevention method and apparatus, and a storage medium, relating to the field of intelligent terminals, and used for solving the problem in the prior art of input focus movement or loss caused by an accidental touch on a screen. The method is applied to an intelligent terminal having a folding screen. In the method, when one screen of the intelligent terminal is in an editing state, event monitoring is carried out on other screens, and if it is detected that a click event occurs on the other screens, the event is intercepted, so that when a user edits content in one screen, if the user accidentally touches the other screens, the input focus is not changed, normal editing f the user is guaranteed, and user experience is improved.

Classes IPC  ?

• G06F 3/041 - Numériseurs, p.ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
• G06F 3/14 - Sortie numérique vers un dispositif de visualisation

Abrégé

The present disclosure relates to a driving circuit and method, a frequency converter, a device and a computer readable storage medium. The circuit includes: a rectifier unit including a first input terminal, a second input terminal and an output terminal, wherein the output terminal of the rectifier unit is connected to an input terminal of the inverter unit, and the second input terminal of the rectifier unit is connected to the input terminal of the inverter unit a first switch arranged between the first input terminal of the rectifier unit and an output terminal of the inverter unit, and configured to control the driving circuit to switch between a series mode and a parallel mode by being switched on or off; the inverter unit with the output terminal connected to a load; and a capacitor connected in parallel between the rectifier unit and the inverter unit.

Classes IPC  ?

• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p.ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont

Abrégé

Disclosed are a method and system for monitoring a human movement posture, a human posture monitor, a storage medium and a processor. The monitoring method includes: receiving a microwave detection signal, wherein the microwave detection signal is a detection signal obtained after microwave scanning is conducted on a target region (S102); determining whether a current movement posture of a preset person in the target region is in a range of dangerous postures according to the microwave detection signal, wherein the current movement posture is an action form of the preset person at a position at a current time point (S104); and sending out an alarm signal when the current movement posture of the preset person in the target region is in the range of dangerous postures (S106).

Classes IPC  ?

• A61B 5/11 - Mesure du mouvement du corps entier ou de parties de celui-ci, p.ex. tremblement de la tête ou des mains ou mobilité d'un membre
• G01S 13/88 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques
• A61B 5/0507 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiques; Mesure utilisant des micro-ondes ou des ondes radio utilisant des micro-ondes ou des ondes térahertz
• A61B 5/00 - Mesure servant à établir un diagnostic ; Identification des individus
• G08B 21/04 - Alarmes pour assurer la sécurité des personnes réagissant à la non-activité, p.ex. de personnes âgées

Abrégé

The present disclosure relates to a human-machine multi-turn conversation method and system for human-machine interaction, and an intelligent apparatus. The method includes: S1, establishing a knowledge graph of user conversation behavior information; S2, determining, according to information currently input by a user, a node corresponding to the information currently input and at least one child node of the node in the knowledge graph; S3, calculating a support degree of the at least one child node relative to the node according to the number of times of querying the node and the number of times of querying both the at least one child node and the node in a historical query record of the knowledge graph; and S4, determining whether to output semantic information of the at least one child node by determining a size relation between the support degree and a preset support degree threshold value.

Classes IPC  ?

• G06N 3/08 - Méthodes d'apprentissage
• G06F 16/33 - Requêtes
• G06F 16/332 - Formulation de requêtes
• G06N 5/02 - Représentation de la connaissance; Représentation symbolique

Abrégé

A water chiller, a water output adjustment method, and an air conditioning system. The water chiller includes: at least two cooling towers used in parallel, a water pressure balance adjustment circuit, and a main control hoard, where each of the at least two cooling towers includes a water pressure pre-adjustment circuit, the main control board is configured to control the water pressure pre-adjustment circuit to realize real-time water output adjustment of the each of the at least two cooling towers, and control the water pressure balance adjustment circuit to achieve a water output balance adjustment among-multiple cooling towers.

Classes IPC  ?

• F25B 49/00 - Disposition ou montage des dispositifs de commande ou de sécurité
• F24F 11/88 - Aspects électriques, p.ex. circuits
• F24F 11/89 - Aménagements ou montage des dispositifs de commande ou de sécurité

Abrégé

Provided is a heat transfer composition, which is characterized in that the heat transfer composition comprises the following three components: 1,1,1,2-tetrafluoroethane (R134a) with a mass ratio of 28%-46%, 2,3,3,3-tetrafluoropropene (R1234yf) with a mass ratio of 33%-71%, and trans 1,3,3,3-tetrafluoropropene (R1234ze(E)) with a mass ratio of I %-23%. The described heat transfer composition which replaces R134a not only has the environmentally friendly features of having low GWP and zero ODP, but also has excellent thermal performance. When applied in a centrifugal chiller, the volumetric refrigeration capacity and energy efficiency are equivalent to those of a centrifugal unit using an R134a refrigerant, and the slip in temperature is small; thus, the present application may become a heat transfer composition to replace R134a.

Classes IPC  ?

• C09K 5/04 - Substances qui subissent un changement d'état physique lors de leur utilisation le changement d'état se faisant par passage de l'état liquide à l'état vapeur ou vice versa
• F25B 1/04 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur rotatif

Abrégé

A photovoltaic air conditioner control method and apparatus and a photovoltaic air conditioner. The method includes: detecting in real time the grid-connected side inverter module temperature and the grid-connected side current of a photovoltaic air conditioner; determining the interval in which the grid-connected inverter module temperature is located and the interval in which the grid-connected side current is located; and, on the basis of the determining results, performing frequency-limiting and frequency-reduction control of the photovoltaic air conditioner.

Classes IPC  ?

• F24F 11/86 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
• F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable
• F24F 5/00 - Systèmes ou appareils de conditionnement d'air non couverts par ou

Abrégé

Disclosed are a wireless bandwidth adjustment method, a wireless bandwidth adjustment apparatus, a terminal, and a storage medium. The wireless bandwidth adjustment method includes: determining a target IOT device and a bandwidth currently used by the target IOT device; collecting statistics on communication data of the target IOT device generated within a preset time period; determining a wireless bandwidth adjustment strategy based on the communication data; and adjusting the bandwidth based on the wireless bandwidth adjustment strategy.

Classes IPC  ?

• H04W 28/20 - Négociation de la bande passante
• H04W 24/08 - Réalisation de tests en trafic réel
• H04W 72/12 - Planification du trafic sans fil

Abrégé

Disclosed are a method, a device and a computer-readable storage medium for registration and login. The method includes: receiving, on a registration device side, registration information used to register a first object; performing a registration operation corresponding to the first object according to the registration information; sending the registration information to a login device that subscribes to the registration information in advance after the registration operation is successful; receiving, on a login device side, the registration information used to successfully register the first object sent by a registration device; receiving login information used to login a second object; and performing a login operation corresponding to the second object if it is determined that the login information has not been used to register the second object and the login information matches the registration information sent by the registration device.

Classes IPC  ?

• H04L 9/40 - Protocoles réseaux de sécurité