This gateway comprises: a first reception unit that receives leakage data from a leakage current sensor installed in a cubicle; a first transmission unit that transmits, to an alarm processing server, management data for identifying the present device in association with alarm data generated on the basis of the leakage data; a second reception unit that receives sensor data detected by a sensor installed in a cubicle; a processed sensor data generation means that processes the sensor data in accordance with prescribed conditions so as to generate processed sensor data; and a second transmission unit that transmits the processed sensor data associated with the management data to a sensor processing server on the basis of a transmission request from the outside.
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
G08B 21/00 - Alarmes réagissant à une seule condition particulière, indésirable ou anormale, et non prévues ailleurs
G08B 29/00 - Vérification ou contrôle des systèmes de signalisation ou d'alarme; Prévention ou correction d'erreurs de fonctionnement, p.ex. empêchant le déclenchement non autorisé
H02B 1/42 - Montage de dispositifs à l'intérieur de ces coffrets
H02B 3/00 - Appareillage spécialement adapté pour la fabrication, l'assemblage ou l'entretien de tableaux ou d'appareillage de commutation
H02H 3/16 - 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 un courant de défaut à la terre ou à la masse
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
2.
GATEWAY, GATEWAY CONTROL PROGRAM, AND GATEWAY CONTROL METHOD
This gateway comprises: a first reception unit that receives electrical leakage data from a leakage current sensor mounted on a cubicle; an alarm data generation unit that generates alarm data when the received leakage data satisfies a prescribed condition regarding an abnormality; a first transmission unit that transmits, to an alarm processing server, the alarm data in association with management data identifying a host device; a second reception unit that receives sensor data detected by a sensor mounted on the cubicle; a processed sensor data generation unit that, when the alarm data generation unit has generated the alarm data, extracts, from the received sensor data, sensor data detected within a period ending at a time point at which the alarm data was issued and spanning a prescribed time; and a second transmission unit that transmits, to a sensor processing server, the processed sensor data in association with the management data.
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
A clock processing device (10), wherein a delay difference calculation unit (322) calculates: a first one-way delay difference, being the difference from a first temporary reference delay time in a combination in which the round trip delay time is minimized; and a second one-way delay difference, being the difference from a second temporary reference delay time in a combination in which the round trip delay time is minimized. A reference value calculation unit (324) calculates a reference value for the first one-way delay time and the second one-way delay time, from the calculated first and second one-way delay differences and the first and second temporary reference delay times. An estimation unit (326) calculates the first one-way delay time from: a ratio found in accordance with the reference value for the first and second one-way delay times; and a round trip delay time for a combination to be calculated.
In this clock processing device (10), a one-way delay difference calculation unit (26) calculates a first one-way delay difference and a second one-way delay difference. An RTT acquisition unit (28) acquires information for calculating the RTT. A delay time estimation unit (32) estimates a first one-way delay time. A one-way delay range update unit (30) derives the first one-way delay difference and the second one-way delay difference and updates the presence range of the first one-way delay time, which is defined using the first one-way delay difference and the second one-way delay difference. An assessment unit (34) assesses, using the presence range of the first one-way delay time, whether the estimated first one-way delay time is correct.
This dual polarized wave transmission/reception antenna has a high degree of freedom and has characteristics that are less likely to be deteriorated by a metal-containing casing. A first plate-like inverted-F antenna 30 and a second plate-like inverted-F antenna 40 are arranged in parallel to a circumferential wall 11 of a metallic casing 10 such that open-end sides of the antennas face each other at a prescribed distance. The first and second plate-like inverted-F antennas 30, 40 have main conductor plates 31, 41, respectively, which are curved along the circumferential wall 11. Ends of the main conductor plates 31, 41 opposite to the open ends are respectively provided with first short-circuit portions 32, 42 which short-circuit the main conductor plates 31, 41 and the circumferential wall 11 (a metallic surface portion). Second short-circuit portions 33, 43 are respectively provided at sides slightly closer to the open ends than the first short-circuit portions 32, 42. A T-shaped power feeding unit 50 is arranged to be electromagnetically coupled with each of the open end sides of the first plate-like inverted-F antenna 30 and the second plate-like inverted-F antenna 40. The T-shaped power feeding unit 50 comprises a power feeding plate 51 arranged so as to face each of the open end sides at a prescribed interval (in a state where respective surfaces thereof are arranged so as to be opposed to each other), and comprises a power feeding line 52 electrically connected to the power feeding plate 51.
H01Q 13/08 - Terminaisons rayonnantes de lignes de transmission micro-ondes à deux conducteurs, p.ex. lignes coaxiales ou lignes micro-rayées
G04C 9/00 - Dispositifs électriques de remise à l'heure des éléments indicateurs
G04G 21/04 - Dispositifs d'entrée ou de sortie intégrés dans des garde-temps utilisant des ondes radio
G04R 60/12 - Antennes attachées sur ou intégrées dans le corps principal des horloges ou des montres à l'intérieur des boîtiers à l'intérieur des boîtiers métalliques
H01Q 1/22 - Supports; Moyens de montage par association structurale avec d'autres équipements ou objets
H01Q 21/24 - Combinaisons d'unités d'antennes polarisées dans des directions différentes pour émettre ou recevoir des ondes polarisées circulairement ou elliptiquement ou des ondes polarisées linéairement dans n'importe quelle direction
Provided is a downsized circular polarization antenna which can be more easily manufactured. In a circular polarization antenna 1 according to an embodiment of the present invention, an inverted-F antenna 20 having an open end at a corner side is provided on one side of two orthogonal sides of a rectangular ground conductor plate 10, and a dipole antenna 30 is provided on the other side. An EM power feeding unit 41 of a power feeding unit 40 is arranged so as to face each of open-end sides of both the antennas. A side, of the inverted-F antenna 20, opposite to the open end is connected to the ground conductor plate 10 so as to be short circuited by a first short-circuit portion 22 and a second short-circuit portion 23. Thus, the inverted-F antenna 20 (of a λ/4 type) and the dipole antenna 30 (of a λ/2 type) are orthogonally provided on a metal sheet, and one-point power feeding is carried out through EM coupling. As a result of this, a circular polarization antenna which can be easily manufactured can be provided, and further, a circularly polarized wave for ensuring a high gain (about 3 dBc), high efficiency (slightly less than 90%), and a good angle width, can be generated.
H01Q 21/24 - Combinaisons d'unités d'antennes polarisées dans des directions différentes pour émettre ou recevoir des ondes polarisées circulairement ou elliptiquement ou des ondes polarisées linéairement dans n'importe quelle direction
H01Q 1/38 - Forme structurale pour éléments rayonnants, p.ex. cône, spirale, parapluie formés par une couche conductrice sur un support isolant
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
Provided is a downsized circular polarization antenna which can be more easily manufactured. A circular polarization antenna 1 is provided with a ground conductor plate 10, an annular cut-out antenna 20 disposed at a prescribed distance from the ground conductor plate 10, and a power feeding line 30 having one end connected to the annular cut-out antenna 20 and the other end extending to the ground conductor plate 10. In the circular polarization antenna 1, by the power feeding line 30 being exposed from the ground conductor plate 10, radiation (an Eθ component) from the power feeding line 30 and radiation (an Eφ component) from the annular cut-out antenna 20 are made orthogonal to each other, whereby a wave can be circularly polarized. Specifically, an angle width satisfying that axial ratio ≤ 3 dB is around 80° in the Z-Y plane (φ = 90°), and is around 54° in the X-Y plane (θ = 90°), so that good circular polarization characteristics are exhibited. In addition, a resonance frequency of 2.51 GHz and an efficiency of 74.5% can be obtained.
This circular polarization antenna has a high degree of freedom and has characteristics that are less likely to deteriorate due to a metal-containing casing. A first plate-like inverted-F antenna 30 and a second plate-like inverted-F antenna 40 are arranged in parallel to a circumferential wall 11 of a metallic casing 10 such that open-end sides of the antennas face each other at a prescribed distance. The first and second plate-like inverted-F antennas 30, 40 have main conductor plates 31, 41, respectively, which are curved along the circumferential wall 11. Ends, of the main conductor plates 31, 41, opposite to the open ends are respectively provided with first short-circuit portions 32, 42 which short-circuit the main conductor plates 31, 41 and the circumferential wall 11 (a metallic surface portion). Second short-circuit portions 33, 43 are respectively provided at sides slightly closer to the open ends than the first short-circuit portions 32, 42. A T-shaped power feeding unit 50 is arranged to be electromagnetically coupled with each of the open end sides of the first plate-like inverted-F antenna 30 and the second plate-like inverted-F antenna 40. The T-shaped power feeding unit 50 comprises a power feeding plate 51 arranged so as to face each of the open end sides at a prescribed interval (in a state where respective surfaces thereof are arranged so as to be opposed to each other), and comprises a power feeding line 52 electrically connected to the power feeding plate 51.
H01Q 21/24 - Combinaisons d'unités d'antennes polarisées dans des directions différentes pour émettre ou recevoir des ondes polarisées circulairement ou elliptiquement ou des ondes polarisées linéairement dans n'importe quelle direction
G04C 9/00 - Dispositifs électriques de remise à l'heure des éléments indicateurs
G04G 21/04 - Dispositifs d'entrée ou de sortie intégrés dans des garde-temps utilisant des ondes radio
G04R 60/12 - Antennes attachées sur ou intégrées dans le corps principal des horloges ou des montres à l'intérieur des boîtiers à l'intérieur des boîtiers métalliques
H01Q 1/44 - ANTENNES, c. à d. ANTENNES RADIO - Détails de dispositifs associés aux antennes utilisant un équipement ayant une autre fonction principale servant en outre d'antenne
H01Q 13/08 - Terminaisons rayonnantes de lignes de transmission micro-ondes à deux conducteurs, p.ex. lignes coaxiales ou lignes micro-rayées
9.
DUAL POLARIZED WAVE TRANSMISSION/RECEPTION ANTENNA, ANTENNA UNIT, AND CLOCK
This dual polarized wave transmission/reception antenna has a small size and has characteristics that are less likely to be deteriorated by a metal-containing casing. A dual polarized wave transmission/reception antenna 1 uses a metallic casing as a ground conductor plate for a main antenna 30, and causes the main antenna 30 and a power feeding antenna unit 50 (EM power feeding unit) for carrying out power feeding by electromagnetic coupling, to function as antennas having different radiation directions. Since a polarized wave component generated at the main antenna 30 is orthogonal to a polarized wave component generated at an electromagnetic coupling type power feeding unit (EM coupling unit) of the main antenna 30 and the T-shaped power feeding unit 50, the dual polarized wave transmission/reception antenna 1 can be used as one form of a GPS antenna. For example, when being disposed in a clock 100, the dual polarized wave transmission/reception antenna 1 that has, in a Z direction orthogonal to a dial plate 101, maximum radiation directions of both horizontally and vertically polarized waves, can be used as one form of a GPS antenna.
H01Q 1/22 - Supports; Moyens de montage par association structurale avec d'autres équipements ou objets
G04G 21/04 - Dispositifs d'entrée ou de sortie intégrés dans des garde-temps utilisant des ondes radio
G04R 60/12 - Antennes attachées sur ou intégrées dans le corps principal des horloges ou des montres à l'intérieur des boîtiers à l'intérieur des boîtiers métalliques
H01Q 13/08 - Terminaisons rayonnantes de lignes de transmission micro-ondes à deux conducteurs, p.ex. lignes coaxiales ou lignes micro-rayées
Provided is a dual polarized wave transmission/reception antenna having a simplified configuration. The dual polarized wave transmission/reception antenna uses, among a dipole antenna, an inverted-F antenna, and an inverted-L antenna, any two antennas the resonance frequencies of which are controlled to be substantially equal to each other, and open-end sides of the two antennas are arranged so as to be orthogonal to each other at a prescribed distance. An EM power feeding unit is arranged so as to face each of the open-end sides with a prescribed interval. A power feeding line is electrically connected to the EM power feeding unit. Thus, according to the dual polarized wave transmission/reception antenna of the present embodiment, one-point electromagnetic power feeding is carried out from respective open-end sides of two linear antennas which are orthogonal to each other and the resonance frequencies of which are substantially equal to each other, whereby a power feeding unit and a high-frequency circuit can be simplified, and a vertically polarized wave and a horizontally polarized wave can be transmitted/received with a simpler configuration. As a result of using an inverted-F antenna or an inverted-L antenna, the dual polarized wave transmission/reception antenna can be downsized, and further, the center portion of a ground conductor thereof can be cut off or an electronic circuit can be provided thereto.
H01Q 21/24 - Combinaisons d'unités d'antennes polarisées dans des directions différentes pour émettre ou recevoir des ondes polarisées circulairement ou elliptiquement ou des ondes polarisées linéairement dans n'importe quelle direction
H01Q 9/16 - Antennes résonnantes avec alimentation intermédiaire entre les extrémités de l'antenne, p.ex. dipôle alimenté par le centre
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
H01Q 21/06 - Réseaux d'unités d'antennes, de même polarisation, excitées individuellement et espacées entre elles
11.
SYNCHRONIZATION MESSAGE TRANSMISSION DEVICE, TIME SYNCHRONIZATION SYSTEM, AND SYNCHRONIZATION MESSAGE TRANSMISSION METHOD
In the present invention, a synchronization message transmission device transmits a synchronization message including time information, and is provided with the following: a synchronization message generation unit that generates the synchronization message; a general message generation unit that generates a general message other than the synchronization message; and a transmission unit that transmits the synchronization message and the general message. The synchronization message generation unit is provided at a lower level than the general message generation unit.
The purpose of the present invention is to further reduce the size of a compact slot-type antenna in which a slot and a stripline are electromagnetically coupled. In a compact slot-type antenna 20, a stripline 40 is used rather than an electrical connection to perform electromagnetically coupled power feeding for feeding electric power by electromagnetic coupling. The stripline 40 is configured from a first line section 41 extending in the longitudinal direction of the slot 21, and a second line section 42 extending in an orthogonal direction, the second line section 42 being connected to the first line section 41, and the first line section 41 being arranged inside the projection region of the slot 21. One end side of the second line section 42 is connected to the first line section 41, and the other end side is connected to a high-frequency circuit. A compact slot-type antenna can be devised because the first line section 41, which is the tip portion of the stripline 40, is arranged inside the slot 21. Also, the antenna can be made even smaller at the same frequency on the basis of the new finding that forming a slit 22 that extends from the slot 21 to the side of a metal substrate 11 reduces the resonance frequency f.
brevets
