G01K 17/10 - Mesure d'une quantité de chaleur transportée par des milieux en écoulement, p.ex. dans les systèmes de chauffage basée sur la mesure d'une différence de température entre un point d'entrée et un point de sortie, combinée avec la mesure du débit de l'écoulement d'un milieu
G06Q 50/06 - Fourniture d'électricité, de gaz ou d'eau
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projets; Planification d’entreprise ou d’organisation; Modélisation d’entreprise ou d’organisation
A utility meter comprising one or more wireless communication interfaces for transferring a payload between the utility meter and a communication partner. The utility meter includes security means for securing the payload being transferred via the one or more wireless communication interfaces by a security mechanism such as encryption or authentication. At least one of the wireless communication interfaces is an Ultra Wide Band, UWB, communication interface arranged for determining a distance between the utility meter and a communication partner. The utility meter is arranged to determine a distance between the utility meter and the communication partner and to communicate with the communication partner the wireless communication interface to transfer the payload between the utility meter and the communication partner. If the determined distance is shorter than a first distance limit, the payload will be transferred unsecured or secured at a first security level otherwise the utility meter will refrain from transferring the payload or transfer the payload secured at a second security level.
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
3.
SYSTEM AND METHOD FOR ACOUSTIC LEAK DETECTION IN A UTILITY DISTRIBUTION SYSTEM
A system and a method for identifying a leak indication in a utility distribution system is de- scribed. A pipe network for supplying a utility to a multitude of service connections includes a plurality of acoustic sensors mounted at the service connections. The acoustic sensors are preferably integrated in ultrasonic flow meters. The method comprises the steps of obtaining information about a time of change (55) of a fluid pressure and then establishing a first noise indicator from the noise measured by the acoustic sensors before said time of change (55), establishing a second noise indicator from the noise measured after said time of change (55); and then correlating one or more first noise indicators and second noise indicators with the fluid pressure to identify service connections subject to leak indications. A leak detection sys- tem based on a mathematical cross correlation of noise indicators and fluid pressure in a fluid pipe system is also described.
F17D 5/06 - Prévention, interception ou localisation des pertes utilisant des moyens électriques ou acoustiques
G06Q 50/06 - Fourniture d'électricité, de gaz ou d'eau
G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes
G01M 3/24 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des vibrations infrasonores, sonores ou ultrasonores
A flow meter unit (1) comprising a flow tube (2), a housing (3) and a housing compartment (4), wherein the housing compartment comprises an electronic metering circuitry (5). The flow meter unit uses a first sensor arrangement (6) for determining a fluid flow rate or a fluid flow volume through the flow tube. In order to determine further physical parameters relating to the fluid a second sensor arrangement (7, 20, 30, 32, 60) is placed outside the housing compartment (4), is fluidically and mechanically connected to the flow tube and is in wireless communication with the electronic metering circuitry (5) via a short-range antenna of transmitter and receiver means (8, 8', 8'', 8''') placed in the second sensor arrangement and a short-range antenna (9, 31, 67) placed inside the housing compartment (4). The short-range antenna is positioned at a height in-between a long-range antenna and a bottom wall of the housing compartment. The solution has the advantage that the risk of fluid leakage into the housing when using fluid sensors is reduced and that such a second sensor arrangement is easy to replace or to retro-fit to an already installed flow meter.
G01F 15/063 - Dispositifs d'indication ou d'enregistrement pour l'indication à distance utilisant des moyens électriques
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
H01Q 1/22 - Supports; Moyens de montage par association structurale avec d'autres équipements ou objets
Fluid consumption meter comprising a noise detection module for leak detection measurements and a control device comprising a bi-directional communication unit. The control comprises a time synchronization module for time synchronization of leak detection measurements with an external device via the bi-directional communication unit with a time synchronization error of less than 1000 micro seconds. The control device is arranged to receive a leak detection control signal from an external device and to start the leak detection measurements at a point in time specified the received leak detection control signal.
G01M 3/24 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des vibrations infrasonores, sonores ou ultrasonores
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
F17D 5/06 - Prévention, interception ou localisation des pertes utilisant des moyens électriques ou acoustiques
6.
METHOD FOR ACOUSTIC LEAK DETECTION IN A DISTRICT HEAT CONDUCTION NETWORK
The method is used for acoustic leak detection in a district heat supply network (3), in which a heat transfer medium is circulated between a combined heat and power plant (1) and points of usage. The points of usage (5) have heat meters (10) which work with ultrasonic flow meters which can be operated in a leak detection mode for acoustic leak detection, and the acoustic signals captured in leak detection mode are filtered to eliminate extraneous noise, in particular pump noise.
G01M 3/24 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des vibrations infrasonores, sonores ou ultrasonores
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes
7.
METHOD FOR SETTING UP AN ACOUSTIC LEAK DETECTION SYSTEM
The invention refers to a method for setting up an acoustic leak detection system in a fluid distribution network characterized by the following steps: placing at least one first acoustic sensor (10) in the network; placing at least one acoustic signal generator (26) in the network at a location distanced to the at least one first acoustic sensor (10) along a Pipe (4); generating an acoustic signal by the acoustic signal generator (26); evaluating whether the at least one first acoustic sensor (10) detects said generated acoustic signal; and in case that said generated acoustic signal is not detected by said at least one first acoustic sensor (10), placing at least one second acoustic sensor (24) in the network at a location less distant along the pipe from the location of the signal generator (26) than said at least one first acoustic sensor (10).
G01M 3/24 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des vibrations infrasonores, sonores ou ultrasonores
E03B 7/07 - Disposition des appareils, p.ex. filtres, commandes du débit, dispositifs de mesure, siphons, valves, dans les réseaux de canalisations
A method for determining events in a network (1) of consumption meters (5), in which an event is determined by grouping data characterizing the event according to consumption meters (5) which have detected this characterizing data. If groups of consumption meters match, this is determined as an event, the grouping being carried out according to the following criteria - temporal coincidence of the event - spatial concordance of the event - consistency of the event type The spatial concordance is determined by determining and ranking the Euclidean distance of each of a plurality of consumption meters (5) to everyone of the of others of the plurality of consumption meters (5), and by assigning the n closest consumption meters (5) that have detected this characterizing data to a group of consumption meters (5).
The present disclosure relates to a method for link management for wireless communication between - a plurality of measuring devices (7), wherein each of the measuring devices (7) is installed to measure or detect a value at a respective utility installation, and - at least one data collection unit (5) for collecting data from the plurality of measuring devices (7), wherein the method comprises: - sending uplink data frames from at least one of the measuring devices (7) to the data collection unit (5), - providing by at least some of the uplink data frames a time-limited access opportunity (AO) for receiving downlink frames from the at least one data collection unit (5), - updating a counter value (FC) in the at least one of the measuring devices (7) by adjusting the counter value (FC) for each non-used or unsuccessfully used access opportunity (AO), - transmitting an urgency indicator to the at least one data collection unit (5) by at least some of those uplink data frames that provide an access opportunity (AO), wherein the urgency indicator depends on the counter value (FC), - sending downlink frames from the data collection unit to the at least one of the measuring devices (7) according to a prioritization scheme being based on the urgency indicator.
H04W 84/18 - Réseaux auto-organisés, p.ex. réseaux ad hoc ou réseaux de détection
10.
AN AUTOMATIC READING SYSTEM AND A METHOD FOR INSTALLING A PLURALITY OF BATTERY-POWERED STATIONARY MEASURING DEVICES AT A PLURALITY OF DISTRIBUTED INSTALLATION LOCATIONS
The present disclosure relates to an automatic reading system, ARS (1), for determining values at a plurality of distributed installation locations and communicating data containing said values via a Low Power Wide Area Network, LPWAN, to a head-end-system, HES (3), the ARS (1) comprising: - a HES (3); - a plurality of battery-powered stationary measuring devices (7), wherein each of the measuring devices (7) is configured to be installed at one of the installation locations and to determine said values of said one installation location, wherein each of the measuring devices (7) comprises an LPWAN connection module being configured to establish a wireless communication connection to the LPWAN for communicating data containing said values via the LPWAN to the HES (3); and - a mobile installation device (13) comprising a short-range connection module configured to establish a short-range wireless communication connection (15) to one of the measuring devices (7) that is about to be installed at one of the installation locations, wherein the short-range connection module is configured to send, via the short-range wireless communication (15), LPWAN connection candidate information to said one of the measuring devices (7) that is about to be installed at one of the installation locations, and wherein the LPWAN connection module of said one of the measuring devices (7) is configured to attempt to establish for the first time at said one of the installation locations a handshaked LPWAN connection to the LPWAN based on the received LPWAN connection candidate information.
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
G01D 1/00 - Dispositions pour la mesure donnant des résultats autres que la valeur instantanée d'une variable, d'application générale
11.
SYSTEM AND METHOD FOR ACOUSTIC LEAK DETECTION IN A UTILITY DISTRIBUTION SYSTEM
Method for identifying a leak indication in a utility distribution system including a pipe net- work for supplying a utility to a multitude of service connections and including a plurality of acoustic sensors mounted at the service connections. The method comprises the steps of: determining the presence of a normal fluid pressure in the pipe network; establishing a base- line noise indicator at a time of normal fluid pressure by using the acoustic sensors; deter- mining the presence of a difference fluid pressure in the pipe network; establishing a leak noise indicator at a time of the difference fluid pressure by using the acoustic sensors; and correlating one or more baseline noise indicators and leak noise indicators to determine ser- vice connections subject to leak indications.
The invention refers to a fluid consumption meter (50) configured to measure a flow rate of a fluid and comprising a noise detection module (40) for leak detection, further comprising a control device comprising a bi-directional communication unit (60) and being configured to receive a leak detection control signal from an external device (100), to set the fluid consumption meter (50) into a leak detection mode upon reception of the leak detection control signal, and to start a noise measurement for leak detection in said leak detection mode and to transmit data from said noise detection module, an to a leak detection system.
G01M 3/24 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des vibrations infrasonores, sonores ou ultrasonores
13.
ULTRASONIC FLOW METER AND A METHOD OF DETERMINING A FLOW RATE
Disclosed is an ultrasonic flow meter and a method of determining a flow rate of a fluid in a flow path between a transmitter Tx and a receiver Rx. There is an act of transmitting multiple wave packets through the flow path, each wave packet generated from a set of different Tx-parameter types. At least two wave packets have different Tx-parameter values. There is an act of receiving the multiple wave packets. Also disclosed are means for performing the acts as well as computer programs with instructions to perform the acts.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
An apparatus, such as a smart utility meter, comprising a set of master resources, such as data registers and functions which are protected by a master key. The apparatus being arranged to receive a request of access to one or more of the master resources through a communication interface and to grant or deny access to the requested master resources. The request of access comprises a rights descriptor which defines a set of rights for accessing a subset of the master resources. The request of access has been authenticated by use of a key which has been derived based on the master key and the rights descriptor. The apparatus being arranged to derive a derived key based on the key derivation function, the master key and the received rights descriptor and to verify that the received request has been correctly authenticated by use of the derived key and that that the rights descriptor defines rights for accessing the requested resources. If it is verified that the request has been correctly authenticated by use of the derived key and that the rights descriptor defines rights for accessing the requested resources, the apparatus grant access to the resources otherwise access is denied.
H04L 9/32 - Dispositions pour les communications secrètes ou protégées; Protocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
15.
SENSITIVE AND ROBUST FRAME SYNCHRONIZATION OF RADIO FREQUENCY SIGNALS
A method for detecting a constant envelope burst-mode radio frequency (RF) signal with a known periodic synchronization sequence (PSS) represented therein, e.g. to be for reading of data from utility meters. An incoming RF signal is transformed into a digital baseband signal (DBS), and the phase domain part is processed by: 1) applying a correlation algorithm to correlate the DBS with a synchronization pattern corresponding to the PSS. 2) filtering the resulting correlation signal for removing at least a DC component of the correlation signal. 3) down-sampling the filtered correlation signal (or the correlation signal) with a sampling time controlled by a clock aligned with amplitude peaks in the filtered correlation signal (or the correlation signal). 4) performing a decision algorithm on the down-sampled signal to determine if PSS is present in the incoming RF signal. Then, 5) generating an output signal indicating if the known PSS is present in the incoming RF signal, in response to a result of the decision algorithm. The steps 1)-5) serve to detect if an amplitude in the correlation signal indicates the presence of the known PSS. Preferably, a second decision algorithm serves to detect if periodicity in the correlation signal indicates the presence of the known PSS, and finally the results of the first and second decision algorithms can be combined, e.g. by a logic AND operation, to arrive at a sensitive and reliable PSS detection result.
Flow meter for an ultrasonic flow meter, comprising a flow tube with a through-going opening for passage of a fluid between an inlet and an outlet, comprising: a flow pipe of a first material, such as metal, extending between the inlet and the outlet, a liner of a second material, such as a polymer- based material, extending along an inner surface of the flow pipe between the inlet and the outlet, a housing providing a compartment for transducers and metering electronics wherein the housing is connected to the liner, by being mounted on an interface being an integrated part of the liner.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
G01F 15/18 - Supports ou moyens de raccordement pour les compteurs
The present invention relates to an ultrasound flow meter comprising a main housing, at least one reflector and a set of transducers. The flow meter may comprise a measuring pipe forming a measuring channel having a measuring channel inlet and a measuring channel outlet. The flow meter may comprise a flow pipe with a set of flow pipe holes through the pipe wall. The measuring pipe may be adapted to be arranged inside the flow pipe. The measuring pipe may comprise a set of measuring pipe holes to be aligned with the flow pipe holes. The ultrasound flow meter may comprise a set of transducer insert housings. Each of the transducer insert housings may comprise a transducer. Each of the transducer insert housings may be adapted to be arranged through a corresponding measuring pipe hole and a flow pipe hole. The ultrasound flow meter may further com- prise one or more connection tubes comprising one or more transducer interfaces and a housing interface. The main housing, the connecting tubes and the transducer insert housings may form a hermetically sealed compartment.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
18.
UTILITY METER INCLUDING A TEMPERATURE SENSOR DETECTION ALGORITHM
Utility meter for measuring thermal energy delivered to a point of consumption by a fluid supplied via a supply flow and a return flow, including a flow meter unit for measuring a supply flow rate or return flow rate of the fluid; a pair of temperature sensing probes for measuring temperatures of the supply flow and the return flow, each of the temperature sensing probes including a resistive temperature device; and a calculator device configured for executing a measuring algorithm for determining an amount of thermal energy delivered to the point of consumption over a period of time based on flow rates and temperatures received from the flow meter unit and temperature sensing probes, respectively; wherein the calculator device is configured to detect the type of resistive temperature device included in the temperature sensing probes and to adapt the measuring algorithm according to the type of resistive temperature device.
G01K 7/18 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant des éléments résistifs l'élément étant une résistance linéaire, p.ex. un thermomètre à résistance de platine
G01K 17/10 - Mesure d'une quantité de chaleur transportée par des milieux en écoulement, p.ex. dans les systèmes de chauffage basée sur la mesure d'une différence de température entre un point d'entrée et un point de sortie, combinée avec la mesure du débit de l'écoulement d'un milieu
An electronic flow meter comprising a flow tube provided with flow channel extending between an inlet and an outlet, an electronics housing arranged in association with the flow tube, wherein a sensor bore in fluid communication with the flow channel is provided in an inner surface of in the electronic housing; a flow sensor including a pair of ultrasound transducers mounted on a main printed circuit board arranged inside the electronics housing, the flow sensor being configured for measuring a flow rate of a fluid flowing through the flow tube, a pressure sensor including a sensor element and an associated electronic measurement circuit; wherein a top-side of the sensor element is arranged opposite the sensor bore and a backing device is provided to force the sensor element against a sealing element arranged to provide a sealing between the sensor element and the inner surface of in the electronic housing.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01L 9/00 - Mesure de la pression permanente, ou quasi permanente d’un fluide ou d’un matériau solide fluent par des éléments électriques ou magnétiques sensibles à la pression; Transmission ou indication par des moyens électriques ou magnétiques du déplacement des éléments mécaniques sensibles à la pression, utilisés pour mesurer la pression permanente ou quasi permanente d’un fluide ou d’un matériau solide fluent
G01L 19/00 - MESURE DES FORCES, DES CONTRAINTES, DES COUPLES, DU TRAVAIL, DE LA PUISSANCE MÉCANIQUE, DU RENDEMENT MÉCANIQUE OU DE LA PRESSION DES FLUIDES - Détails ou accessoires des appareils pour la mesure de la pression permanente ou quasi permanente d'un milieu fluent dans la mesure où ces détails ou accessoires ne sont pas particuliers à des types particuliers de manomètres
A modular ultrasonic flow meter including a substantially watertight meter housing connected; a measurement printed circuit board including a measurement circuit communicating with one or more ultrasonic transducers, arranged in the meter housing for transmitting and receiving ultrasonic signals; and a self-contained power supply. The ultrasonic flow meter further includes a control module comprising a module housing connected with a main printed circuit board including a central processing unit, a memory circuit and a communication circuit, and a power- and communication connection is provided between the main printed circuit board of the control module and the measurement printed circuit board whereby the self-contained power supply may power the main printed circuit board and the measurement printed circuit board.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
G01F 15/06 - Dispositifs d'indication ou d'enregistrement
Integrated flow meter and control valve (1) including a flow tube (11); a substantially watertight meter housing (12) providing a compartment (121), extending from the flow tube; a metering unit (139 arranged inside the compartment for measuring the flow of a medium flowing though the flow channel, and an electrical valve actuator (18) arranged inside the compartment and adapted to control a flow control element (19) arranged inside the flow channel, wherein that meter housing is formed as an integrated part of the flow tube with the compartment having a primary opening (124) for insertion of the metering unit and a secondary sealable opening (125) for insertion of the electrical valve actuator.
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F16K 31/53 - Moyens mécaniques d'actionnement à engrenage
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
F16K 27/06 - Structures des logements; Matériaux utilisés à cet effet des robinets ou des vannes
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
A stand-alone ball valve actuator (2) comprising an actuator housing (20) including an valve interface (24) configured for releasably coupling the stand-alone ball valve actuator to a ball valve; an electric motor (21) arranged in the actuator housing, configured to selectively rotate a ball element of the ball valve via a gearing (211) and coupling member (23), an encoder assembly (4) for producing a position signal representative of the rotational position of the coupling member; a transceiver system (5) arranged in the actuator housing, for wirelessly receiving configuration information regarding a desired rotational position of the coupling member; a processor (6) arranged in the actuator housing, configured to process said position signal and said configuration information, and control the electric motor to rotate the ball element, accordingly, and a self-contained power source (7) arranged in the actuator housing, for driving the processor, the transceiver system and the electric motor.
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
G01D 5/241 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier la capacité par mouvement relatif d'électrodes de condensateur
A dual band antenna (AN) configured for being position on a surface of a pit lid and capable of wireless signal transmission at two frequency bands in response to an electrical signal applied via a feed wire. A convex conductive surface, e.g. 5 dome-shaped, is placed above a conductive ground plane element, wherein at least a part of an edge, e.g. 20-40% of the edge, of the dome-shaped radiator element is in electrical contact with the conductive ground plane element. Further, the convex conductive surface is connected via the feed wire. This antenna design allows first and second resonance frequencies within a factor of such as 1.8-2.2, 10 which allows the antenna to be designed e.g. for both of the frequency bands 450-470 MHz and 902-928 MHz which are relevant for meter reading data and with smaller dimension than what could be expected from conventional antennas. A housing with a convex top surface forms an enclosure around the antenna parts conductive ground plane element and the dome-shaped radiator element, the 15 housing has a bottom surface arranged to face the surface of the pit lid, and where the feed wire exits the housing.
H01Q 9/42 - Antennes résonnantes avec alimentation à l'extrémité d'un élément actif allongé, p.ex. unipôle avec éléments repliés, les parties repliées étant espacées l'une de l'autre d'une petite fraction de la longueur d'onde émise
An ultrasonic flow meter for measuring a flow rate of a fluid. The meter has a polymeric housing comprising a flow tube with first and second fluid openings connected by a flow channel. First and second mounting faces are formed inside the flow tube by a reduction in the cross-sectional area of the flow channel. The second mounting face is arranged upstream of the first mounting face inside the flow tube with a cross-sectional area of the flow channel at the first mounting face being smaller than a cross-sectional area at the second mounting face. The flow meter further comprises a first flow insert forming a measuring tube and a first ultrasound reflector holder and being provided with a mounting flange arranged to engage with the first mounting face, and a second flow insert forming a second ultrasound reflector holder and being provided with a mounting flange arranged to engage the second mounting face. Further, first and second ultrasound transducers are arranged to transmit and receive ultrasonic signals through the measuring tube via first and second ultrasound reflectors fixated by the respective ultrasound reflector holders, so as to allow ultrasonic measurement of a fluid flowing through the measuring tube.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
Method and devices for wirelessly transmitting data packets in a meter reading system, wherein the method comprises generating at the meter device, a first data packet including payload data and a first message authentication code computed based the payload data and associated meter data stored in a memory of the meter device, transmitting the first data packet from the meter device to the receiver, and performing a primary authentication check of the first data packet and verifying the associated meter data at the receiver by recalculating the first message authentication code using the received payload data and current associated meter data stored in a memory of the receiver, as input.
A consumption meter (Ml) arranged to determine a consumed quantity of a utility at the consumer site. The meter (Ml) has a communication unit with a transmitter and a receiver arranged for communication via a network, preferably an RF network. The meter can autonomously transmit data frames (DF) in accordance with a set of transmission parameters, e.g. data frames with data indicative of a consumed quantity. The meter can receive, within a limited time window (TW) following transmission of said data frame (DF), an acknowledgement frame comprising link data indicative of receipt of said data frame by an associated collector which has received the data frame (DF). Finally, the meter can adjust the set of transmission parameters for transmission of a subsequent data frame (DF) in response to said link data.
H04W 52/48 - Commande de puissance d'émission [TPC Transmission power control] le TPC étant effectué dans des situations particulières lors d'une retransmission après erreur ou en l’absence d’accusé de réception
H04W 52/14 - Analyse séparée de la liaison montante ou de la liaison descendante
The present invention relates to an electricity meter adapted to measure electricity consumption in an electricity distribution network with three phases, wherein the electricity meter comprises a measuring circuit for measuring voltages and currents for each of the three phases, a microcontroller unit configured to calculate the electric energy supplied from the electricity distribution network via the phases, and an impedance learning algorithm unit for estimating impedance values of the electricity distribution network as seen at the electricity meter. The impedance learning algorithm unit is arranged to continuously calculate symmetrical components of the three phases based on measured voltages and currents from the three phases and to estimate zero- and negative sequence impedances as the ratio between a summation of changes in the zero- and negative sequence voltages and a summation of the changes in the zero- and negative sequence currents, respectively.
G01R 21/133 - Dispositions pour procéder aux mesures de la puissance ou du facteur de puissance en utilisant des techniques numériques
G01R 22/10 - Dispositions pour la mesure de l'intégrale dans le temps d'une puissance électrique ou d'un courant, p.ex. compteurs d'électricité par des méthodes électroniques en utilisant des techniques numériques
28.
ULTRASONIC FLOWMETER AND METHOD USING PARTIAL FLOW MEASUREMENTS
Ultrasonic flowmeter for measuring the flowrate of a fluid based on transit times of opposite propagating ultrasonic wave packets, including two ultrasonic transducers arranged at a flow tube for transmitting and receiving the ultrasonic wave packets through a fluid; a control circuit configured for operating the ultrasonic transducers to transmit and receive co-propagating and counter-propagating ultrasonic wave packets, and to determine transit times between transmission and reception of the ultrasonic wave packets; wherein the control circuit is further configured to continuously determine the flowrate of the fluid based on sequential application of separate flow measurement sequences and flow estimation sequences, the flow measurement sequence including transmitting and receiving a co-propagating wave packet and a counter-propagating wave packet, determining a transit time difference between the co-propagating and the counter-propagating wave packets, determining the speed of sound in the fluid, and calculating the flowrate based on the transit time difference and the speed of sound; and the flow estimation sequence including transmitting and receiving a co-propagating wave packet and/or a counter-propagating wave packet, and based on the co-propagating or the counter-propagating wave packet, determining whether a fluid condition of the fluid has changed since the previous flow measurement.
G01F 25/00 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
29.
RADIO FREQUENCY COMMUNICATION SYSTEM WITH IMPROVED ERROR CORRECTION
A radio frequency communication system comprising a transmitter device configured for encoding and transmitting a data packet to a receiver device; the receiver device being configured to receive, decode and correct errors in a bit sequence indicative of the data packet;the data packet including a main part encoded according to a standard protocol for wireless communication including error-correction code for use by the receiver device to correct errors in the bit sequence; wherein the receiver device is configured to receive additional information adapted to improve decoding of the bit sequence indicative of the data packet, whereby performance of the error correction applied by the receiver device may be improved.
Radio frequency communication method for wirelessly transmitting data packets between two communication nodes of a communication network, the method comprising the steps of generating a data packet including payload data and a first data check value a, transmitting the data packet from the first node to a second node; and determine whether the data packet is transmitted correctly by calculating a second data check value based on the received payload data and comparing the second data check value to the first data check value to;if the data packet is received correctly, transmitting from the second node to the first node an acknowledgement packet including a first acknowledgement check value wherein the first acknowledgement check value provides stronger assurances about data integrity of the received payload data than the first and second data check values; and at the first node, calculating a second acknowledgement check value based on the original payload data, and determining whether the data received at the second node matched the data originally sent from the first node.
H04L 1/16 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue en utilisant un canal de retour dans lesquelles le canal de retour transporte des signaux de contrôle, p.ex. répétition de signaux de demande
31.
A METHOD FOR IDENTIFYING THE PHASES OF A MULTI-PHASE DISTRIBUTION GRID
The present invention relates to a method for identifying which phase of a multi-phase system is associated with which terminal of a group of electricity meters associated with the multi-phase system, based on an analysis of voltage variables measured by and collected from the electricity meters.
The invention relates to a water meter platform (1) and a housing component (2) for a water meter platform. The housing component (2) is providing a flow tube (3), a sealable main compartment (4) adapted to house a meter unit (5) for measuring a flow of a fluid flowing through the flow tube (3) and a flow channel interface (6) in fluid communication with the flow tube adapted for mounting additional functional units, particularly a remote controllable valve unit (7) for interrupting the flow. The meter unit (5) is an ultrasonic meter comprising one or more ultrasonic transducers (51). The meter unit (5), the valve unit (7) mounted in association with the flow channel interface (6) and a self-contained power supply are arranged inside the main compartment (4). The housing component (2) is a monolithic polymer structure (11), preferably adapted to be cast as a single component in one machine cycle.
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc. Such consumer noise level measurement at the consumer site allows collection of noise level data to assist in locating fluid leakages in a fluid supply pipe system.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01M 3/24 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des vibrations infrasonores, sonores ou ultrasonores
A turbidity measurement device for measuring turbidity of a fluid flowing in a flow tube. A first transducer transmits ultrasonic signals through the fluid in the turbidity measurement section so as to provide a first ultrasonic standing wave between the first and second section ends. A receiver transducer receives the ultrasonic scattered response from particles in the fluid flowing through the turbidity measurement section. A control circuit operates the transducers and generates a signal indicative of the turbidity of the fluid in response to signals received from the receiver transducer. Preferably, the device may comprise a second transducer for generating a second ultrasonic standing wave with the same frequency, and further the two transducers may be used to generate a measure of flow rate by means of known ultrasonic techniques. This flow rate may be used in the calculation of a measure of turbidity. Both turbidity facilities and flow rate facilities may be integrated in a consumption meter, such as a heat meter or a water meter.
A system for monitoring a utility network, e.g. to determine anerror state such as a pipe leak etc. The system comprises a plurality of consumption meters at respective consumer sites. Besides determining aconsumed quantity of the utility, these meters can measure a first parameter indicative of fluid flow rate, andat least one second parameter indicative of one of: pressure transients, noise level, and turbidity of the fluid. Data representing the consumed quantityandthe first and second parametersare transmitted from themetersto a server, preferably via an existing communication system for meter reading. At server level amonitor algorithm processesthe first and second parameters,preferably involving a correlation analysis between flow rate and one or more of the second parameters. An output of thealgorithm is compared with a reference value and a state of the utility network is determined accordingly.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
A data transmission system (600) for transmitting consumption data from a consumption meter (100) is provided, wherein the system (600) comprises the consumption meter (100) arranged to measure a volume of a supplied utility and comprising a housing (110) with an outer surface (112); a control circuit arranged in the housing to generate a signal indicative of the volume of the utility; and a transmitter (40) arranged in the housing and being connected to the control circuit and arranged for transmitting the signal indicative of the volume of the utility; and a transmission coupler module (200) comprising a housing adaptor (210) which fits onto the outer surface (112) of the housing (110); and a conductive element (220) arranged with the housing adaptor (210) and being near-fieldcoupled to the transmitter (140),wherein the conductive element (220) is removably arranged with the housing adaptor (210). The data transmission system has high transmission efficiency.
The invention provides a pressure sensor device arranged for measuring a pressure in a fluid pipe system, e.g. a utility network. A measurement system with a pressure sensor serves to measure pressure in the fluid pipe system, and a data processing unit determines at least one statistical parameter in response to a plurality of pressure measurements. Data packets with the statistical parameter is then transmitted by means of a communication module, e.g. via a data network which serves for remote reading of utility meters. The statistical parameter is selected from the second, third and fourth statistical moments of the pressures measured with the plurality of measurements of pressure. The pressure sensor device in a battery driven form can be placed at remote locations in a fluid pipe system to monitor pressure transients, e.g. in a water distribution system. Especially, a time stamp may follow the statistical parameter(s) sent, such that it is possible to track pressure transient creating events on the fluid pipe system.
A system of a plurality of ultrasonic consumption meters 100 each arranged in a utility network 1 for measuring consumption data of a utility in terms of a supplied fluid, the utility network 1 further comprising a data collector 2 for collecting the consumption data is provided, wherein: Each of the ultrasonic consumption meters 100 are arranged to measure a flow rate of the supplied fluid and a pressure of the supplied fluid, the consumption meters 100 comprising: A flow tube 110 with a through-going opening 112 for passage of a fluid between an inlet and an outlet, the flow tube having a wall with an outer surface 114; two ultrasonic transducers 120, 122 arranged at the outer surface 114 of the flow tube 110, so that ultrasonic signals are transmitted through the wall; a control circuit 30 arranged for operating the two ultrasonic transducers 120, 122 and to generate a signal indicative of the flow rate of the fluid; and a communication module 140 connected to the control circuit 130 and arranged for communicating the signal indicative of the flow rate of the fluid to the data collector 2; wherein the control circuit 130 is arranged for operating a first strain gauge 150 arranged at the outer surface 114 of the flow tube 110 to generate a signal indicative of the pressure of the fluid, and 1 wherein the communication module 140 is arranged for communicating the signal indicative of the pressure of the fluid to the data collector 2. The consumption meters 100 of the system are capable of obtaining and communicating data relating to flow and pressure in a utility network to an operator of the network for proper operation of the network.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01F 15/06 - Dispositifs d'indication ou d'enregistrement
A consumption meter 100 for measuring consumption data of a supplied utility is provided, the consumption meter comprising: a housing 110 with an opening 112, where the housing 110 forms a closed compartment when the opening 112 of the housing 110 is closed with a cover 120; a communication module 130 provided in the closed compartment; a front plate 140 provided in the closed department and arranged adjacent to the cover 120, wherein the front plate 140has a first front plate surface 142 facing the cover 120, and a second front plate surface 144 facing opposite; and an antenna comprising an antenna body 150 with an antenna conductive element 154, which is connected to the communication module 130; wherein the front plate 140 has an indentation 146 arranged between the first and the second front plate surfaces 142, 144,and wherein the antenna body 150 is arranged in the indentation 146. The consumption meter 100 provides an antenna with a high transmission performance. Further, the antenna is mechanically supported, and is arranged inside the closed compartment, eliminating the need of any feedthrough across the housing wall.
The present invention relates to a device and a system for transmitting data messages which can be received by different types of receivers. A device and system are disclosed where data transmissions are based on data messages(2) comprising two parts, a first part (20) being encoded in accordance with a communication protocol, such as the wireless MBus protocol, and a second part (21) which comprises error-correcting information for enabling a receiver device to correct errors in the data message(2), such as parity information related to turbo coding. The first part (20) forms an independent sub data message which can be received independently of the content of the second part (21). The sub data message can be received as is within a first communication range(6),and the entire data message can by virtue of the error correction information, and subsequent error correction, be received within a second longer communication range(7).
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
The present invention relates to an ultrasonic flow meter (1) with an unbroken liner (6) inside the flow tube. The flow tube (2) has at least one through-going opening (5) in the wall. The unbroken liner (6) is provided in a water-tight material and arranged in the flow tube to cover the entire inner surface of the flow tube. The piezoelectric transducers (11, 12) are arranged at an outside of the liner (6) in the at least one through-going opening (5) in the wall of the flow tube(2), so that ultrasonic signals are transmitted through the liner wall to enter the flow tube(2).The liner(6)is provided in a polymer selected from the group consisting of polysulphones, polysulphides and polyaryletherketones.A flow meter (1) is thereby provided which eliminates any need for sealing surfaces in relation to the ultrasonic transducers and which can sustain prolonged use in hot liquid.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01F 15/00 - MESURE DES VOLUMES, DES DÉBITS VOLUMÉTRIQUES, DES DÉBITS MASSIQUES OU DU NIVEAU DES LIQUIDES; COMPTAGE VOLUMÉTRIQUE - Détails des appareils des groupes ou accessoires pour ces derniers, dans la mesure où de tels accessoires ou détails ne sont pas adaptés à ces types particuliers d'appareils, p.ex. pour l'indication à distance
G01F 15/14 - Revêtements, p.ex. avec un matériau spécial
The present invention relates to a consumption meter for measuring consumption data of either a hot or a cold liquid supplied to a consumer site (2). The consumption meter comprises a flow meter unit (5) arranged for mount at either an inlet side (3) or an outlet side (4) of the consumer site, and arranged for measuring a flow quantity of the supplied liquid; an inlet temperature sensor (6) for measuring an inlet temperature of the supplied liquid medium, and an outlet temperature sensor (7) for measuring an outlet temperature of the supplied liquid medium; a calculator unit (8) configured to determine consumption values based on the flow quantity, the inlet temperature and the outlet temperature. The consumption meter comprises at least two legally verified consumption registers (R1, R2) for storing consumption values verified for billing. Each of the legally verified consumption registers are associated with an operational state of the consumption meter, so that the consumption meter is capable of measuring legally verified consumption data for each of the at least two operational states. The operational state is determined at the consumer site from an input.
G01F 15/075 - Intégration pour obtenir le débit total, p.ex. en utilisant un mécanisme intégrateur actionné mécaniquement en utilisant des moyens d'intégration actionnés électriquement
F24D 19/10 - Aménagements ou montage des dispositifs de commande ou de sécurité
G01K 17/10 - Mesure d'une quantité de chaleur transportée par des milieux en écoulement, p.ex. dans les systèmes de chauffage basée sur la mesure d'une différence de température entre un point d'entrée et un point de sortie, combinée avec la mesure du débit de l'écoulement d'un milieu
The present invention relates to a system for communicating consumption data. The invention relates to a communication system comprising receivers which perform data verification prior to accepting a data packet as a valid data packet. The system comprises a plurality of consumption meters or utility meters arranged in a communication network with at least one receiver device, such as a repeater. The meters transmit data packets 20 in accordance with a predefined time sequence 10-13. The receiver, upon receipt of a data packet, performs a data verification of the received data packet; and in the event of an invalid data verification, a recovery analysis is performed which comprising a determination of the associated time sequence of the received data packet, and a comparison with time sequences of received data packets from consumption meters in the communication network.
A consumption meter is provided with a conductive feed through for external communication equipment. The meter comprises a housing (104) which forms a closed compartment when an opening of the housing is closed with a cover (106). The compartment includes a communication module (204) and the conductive feed through comprises at least one conductive path (202, 408) from the communication module (204) to an outside part of the meter (102), which outside part is subject to ambient conditions. The path is provided via the opening of the housing and a sealing means (210) in the opening of the housing is used to seal against a first surface (308) of the conductive path when the cover is attached to the housing.
The invention relates to a system of consumption meters (2) arranged in a communication network, where program data of the consumption meters can be updated via the communication network. A data collector (3) is arranged for updating the program data of a group of consumption meters over the network. This is performed by establishing a dedicated update session to each consumption meter of the group of consumption meters, and transmitting addressed update program segments to consumption meters in session. During the update session with a given consumption meter, any other consumption meter which is within communication range (8) will, if it receives the update segment, store it even though the segment is addressed to another meter. In an update session of a next meter, only segments not already stored from a previous session to another consumption meter are transmitted to the next meter.
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
G06F 11/14 - Détection ou correction d'erreur dans les données par redondance dans les opérations, p.ex. en utilisant différentes séquences d'opérations aboutissant au même résultat
The invention relates to a method of operating an ultrasonic flow meter by digitally sampling received signals. Acoustic wave packets are transmitted through a measuring distance in opposite directions, and the received signals are digitized at a sampling frequency being below the Nyquist-limit of two times the signal frequency of the wave packet to generate digitized under-sampled signals 31. From the digitized under-sampled signals, the difference in propagation time along the measuring distance is determined.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant
The invention relates to an ultrasonic flow meter arranged to measure a flow rate of a liquid, the flow meter comprises a flow tube 2, optionally a measurement insert, and two or more ultrasonic transducers 8 which are arranged in transducer inserts 20 to be inserted into the flow tube through openings in the flow tube. The transducer inserts are formed monolithically with the housing as a part of the bottom of the housing. The transducer inserts are in a mount position inserted through the openings in the flow tube to extend into the flow passage so that the surface 15 of the transducer inserts protrude into the flow passage. In this manner, gas bubbles, such as air bubbles, released from the flowing liquid will not rest in front of the transducer insert irrespectively of the orientation of the flow meter in the pipe installation.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
48.
SECURE BROADCASTING OF INSTRUCTIONS TO CONSUMPTION METERS
A communication system for a network of consumption meters is disclosed. The system comprises a plurality of consumption meters (2) and a data collector (3) arranged for data communication in a network (1).The system is arranged for individual encrypted communication between each consumption meter and the data collector. In addition, each consumption meter is capable of storing one or more tokens, and the data collector is arranged for sending out data messages attached with a token. Upon receipt of a data message with a token attached, the consumption meter compares the token with any stored tokens, and upon a match accepts the data message, and otherwise disregards the message.A system for secure broadcasting of messages to consumption meters is thereby provided.
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p.ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseau; Circuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p.ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
49.
MAGNETIC INSENSITIVE LATCH ACTUATED RELAY FOR ELECTRICITY METER
The present invention relates to a relay (1) and to an electricity meter with a relay. The relay comprises a latch actuator (2), possible a linear solenoid-based actuator, and a mechanical latch (3) operable to cyclic switch between a first latch position and a second latch position. A relay actuator (4) is coupled to the latch to follow a movement of the latch, and to a contact spring (6) which closes or interrupts an electric circuit between a first and a second relay terminal (7, 8). The contact spring is part of a conductor path (15-18), where the conductor path comprises at least one bend (17) so that the conductor path comprises a first section (15) and a second section (16) facing each other.
H01H 1/26 - Contacts caractérisés par la manière dont les contacts coopérants s'engagent en butant l'un contre l'autre avec montage élastique avec support par lame-ressort
The present invention discloses an ultrasonic flow meter comprising a generator circuit and a receiver circuit electrically separated from the generator circuit. The flow meter further comprises transducer switching means for controlled connection of ultrasonic transducers to either the generator circuit or to the receiver circuit. The output impedance of the generator circuit and the input impedance of the receiver circuit are controlled to be substantially zero.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
51.
ULTRASONIC FLOW METER HOUSING FORMED BY A MONOLITHIC POLYMER STRUCTURE
The invention relates to an ultrasonic flow meter housing and to an ultrasonic flow meter comprising a housing. The housing is a monolithic polymer structure being cast in one piece. The monolithic structure includes a straight flow tube and a cavity separated from the flow tube, where a shared wall part forms part of the wall of the flow tube and of an inside surface of the cavity. The cavity is arranged for housing at least one ultrasonic transducer at the shared wall part, and a measurement circuit operationally connected to the at least one ultrasonic transducer.In an embodiment, the cavity only has a single opening which can be sealed off by a cover.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
A consumption meter comprising a legal circuit for measuring a physical parameter of a physical entity and for generating a consumed quantity accordingly. The meter comprises a power supply for powering at least the legal circuit. The power supply is arranged to convert a first voltage of 50-1000 V from an electric power line into a lower supply voltage, wherein the conversion from the first voltage to the lower supply voltage involves conversion from electric energy into mechanical energy and conversion from the mechanical energy into electric energy. Such meter, e.g. an electricity meter, is suitable to provide a magnetically tampering immune consumption meter. Preferably, the power supply comprises a piezoelectric transformer to provide this conversion. Such transformer is magnetically immune, rather inexpensive, small, and can provide a high conversion efficiency, thus making such type of transformer suited to built into the casing of a compact consumption meter, e.g. an electricity meter.
An ultrasound flow meter unit arranged to measure a fluid flow rate with one or more ultrasound transducers (606), and a circuit board (602) with an electronic circuit arranged to operate the ultrasound transducer(s) (106, 306).The ultrasound transducer (606), e.g. in the form of a piezo-electric element,is mechanically fixed to the circuit board (602) by a first electrically conducting fixing means which additionally serve(s) to provide an electrical connection between an electrical terminal of the transducer (606) and the electronic circuit. Hereby a functional flow measurement unit (600) is provided which can be tested prior to assembly with a flow meter housing etc. Preferably, a set of ultrasound transducers (106, 306) are soldered directly onto electrically conducting paths (631) on a surface of the circuit board (602) being in electrical connection with the electronic circuit, e.g. in a single SMT mounting process together with mounting of all other electronic components on the circuit board (602).Through- going openings (630, 640) of the circuit board (602)in the vicinity of these conducting paths (631) serve to provide thermal elasticity.A metal clip soldered to the circuit board (602) may serve to electrically connect a second electrical terminal of the transducer (606) to the electronic circuit.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
H05K 7/12 - Moyens élastiques ou moyens de serrage pour fixer un composant à la structure de l'ensemble
An ultrasound flow meter unit, e.g. a unit forming part of a flow meter for ultrasonic measurement of a fluid flow. The unit comprises two ultrasound transducers 206, a circuit board 202 with an electronic circuit 204 arranged for operating the ultrasound transducers 206, and a common protection membrane 132, such as a sheet of metal, for protecting the transducers 206. The common protection membrane 132 forms part of a water-tight casing, such as an IP68 class casing. The two ultrasound transducers 206 and the circuit board 202 with the electronic circuit 204 are positioned within the water-tight casing and thus protected against damaging humidity. A glass sealed feed-through 128 can be used to provide external electrical contact to the electronic circuit 204, i.e. for outputting an electric flow rate signal. Such flow meter unit is highly versatile within many applications since it provides a compact and robust unit. The unit can be used with or integrated in many types of devices, e.g. flow meters, such as used in consumption meters for charging purposes or in many other industrial or home applications.
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
55.
CONSUMPTION METER WITH ONE PROCESSOR HANDLING LEGAL AND NON-LEGAL CODE
A consumption meter, e.g. for charging purposes, arranged to measure a consumed quantity (Q) of a physical entity. The meter has a measurement circuit (MC), a memory (M), a memory management unit (MMU) for handling access to areas of the memory (M) according to respective access rights assigned to different tasks, and a processor (P). The processor (P) can access the memory (M) through the memory management unit (MMU), and execute executable code (T1, OS) stored in the memory (M). The processor (P) can execute a vital meter calculation task (T1) with a first access right (PL3) assigned thereto which results in storing a calculated consumed quantity (Q) in a first memory area. Finally, the processor (P) can execute an operating system (OS) which can temporally limit execution of executable code other than the calculation task code (T1). This architecture of a consumption meter allows one single processor (P) to be used for handling legal and non-legal tasks, and the memory management unit (MMU) serves to ensure that no data used by a legal task can be destroyed by a non-legal task. Further, since the operating system (OS) can handle possible temporal conflicts between non-legal and legal tasks, it will be possible to change executable program code for non-legal tasks without the requirement of a renewed authority approval of the meter.
A consumption meter, such as a consumption meter for charging purposes, including a flow sensing unit (FSU), e.g. an ultrasonic flow sensing unit (FSU), a radio communication interface (RCI) arranged to transmit a Radio Frequency signal representing a measured amount of a physical quantity (Q). A battery (B) with battery voltage (VB) supplies power to the flow sensing unit (FSU) and the radio communication interface (RCI). A voltage converter, preferably a non-linear regulator (NR), is connected to the battery so as to convert the battery voltage (VB) to a second voltage (V2) which is lower than the battery voltage (VB). The radio communication interface (RCI) is arranged for atleast partly being powered by this lower voltage (V2). Hereby power can be saved and life-time of the battery (B) can be improved, since the typical radio communication interface (RCI) circuits consume less power when operated at lower supply voltages than the typical battery voltage (VB) 3.6 V for a long-life type Lithium battery (B).
G01F 15/06 - Dispositifs d'indication ou d'enregistrement
G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
Electricity meter comprising a measuring circuit for each of the one or more phases for measuring electric energy for each phase. For supplying energy to the individual circuits of the electricity meter, the latter comprises a voltage supply which is supplied with electricity from the electricity supply network. The voltage supply comprises a switch mode circuit, preferably operating with a switch frequency of 100 kHz or more, and a transformer. The primary winding of the transformer is connected to the output of the switch mode circuit, and the transformer comprises separate galvanically separated secondary windings for voltage supply of the respective separate measuring circuits for each phase. In preferred embodiments, the switch mode circuit is provided with feedback on the voltage on a separate secondary winding feeding the calculating circuit and any communication module, and based on this feedback the energy supply to the primary winding of the transformer. Preferably, the transformer has a large air gap and a ferrite core such that its primary induction is 5-15 times greater with the core being mounted than without the core being mounted. The voltage supply is preferably dimensioned to be able to supply sufficient energy even without the core being mounted in the transformer.
brevets
