Abstract: A method for managing single function devices among communication devices broadcasting messages to gateways connected to a gateway manager, a single function device being only able to broadcast a message including a command.

Abstract: A method for managing mobility of communication devices, wherein a gateway manager is connected to a set of gateways, each gateway being paired with at least one communication device through wireless links and each communication device being paired to only one gateway, wherein a first database linked to the gateway manager includes primary vectors containing an identifier of a gateway, an identifierof communication device and quality metrics, the method including: the gateways storing, for each received message sent from communication devices, a secondary vectorincluding an identifier of the communication device, a timestamp and quality metrics pertaining to the radio link between the gateway and the communication device, the gateway manager collecting the secondary vectors from all the gateways and storing the collected secondary vectors in correspondence respectively with identifiers of the gateways in a manager database, the gateway manager selecting, based on the quality metrics, a secondary vector among

Abstract: A method for optimizing power supply life time of an industrial sensor platform which includes a processing unit, a power supply, and transmission means. The method identifies a sensor connected to an industrial platform, verifies a functional setting of the platform, determines sensor power consumption and sensor measurement time ts, and determines transmission power consumption of the transmission means. The method further includes acquiring input parameter settings which includes expected battery life time, sensor reading interval Ts and periodic transmission interval Tw. Which is followed by calculating an optimum for power supply life time, sensor reading interval Ts, and periodic transmission interval Tw. And adjusting settings of the platform for sensor reading interval Ts and periodic transmission interval Tw according to the optimum calculated.

Abstract: A method for optimizing power supply life time of an industrial sensor platform which includes a processing unit, a power supply, and transmission means. The method identifies a sensor connected to an industrial platform, verifies a functional setting of the platform, determines sensor power consumption and sensor measurement time ts, and determines transmission power consumption of the transmission means. The method further includes acquiring input parameter settings which includes expected battery life time, sensor reading interval Ts and periodic transmission interval Tw. Which is followed by calculating an optimum for power supply life time, sensor reading interval Ts, and periodic transmission interval Tw. And adjusting settings of the platform for sensor reading interval Ts and periodic transmission interval Tw according to the optimum calculated.

Abstract: This system comprises a first device comprising a member for measuring voltage of a primary conductor, means for sampling the measured voltage, means for transmitting a first message, and means for determining a set of variable values representative of the voltage, based on the voltage measured during a given transmission period; at least one second device having a current sensor for determining intensity in a secondary conductor connected to the primary conductor, means for sampling the measured intensity; and a member for calculating said energy, including means for receiving the first message and being configured for calculating an energy during the given transmission period on the basis of said data set and intensity samples associated with the given transmission period. The determination means are configured for determining said data set based on a correction coefficient which depends on a value representative of the voltage only for each voltage period where said value is greater than a threshold.

Abstract: The system (20) according to the invention for calculating an electric quantity relative to an electrical installation comprising several secondary electrical conductors (42A, . . . , 48C) electrically connected to a primary electrical conductor (34; 36; 38). This system comprises a first module (60) including a wireless transmitter (70) and a plurality of second modules (62A, 62B, 62C). Each second module includes first means (84A, 88A; 84B, 88B; 84C, 88C) for receiving a first synchronization message (M1) and second transmission means (84A, . . . , 88C) for sending a second message (M2A, M2B, M2C) containing at least one intensity value measured by the corresponding current sensor to a third module (63). The intensity values are measured quasi-simultaneously and the third module includes a unit (104) for calculating the electric quantity from intensity values received via said second messages.

Abstract: A system to measure electrical energy of current in a secondary electrical conductor connected to a primary electrical conductor, the primary and secondary conductors having substantially same voltage. The system includes a primary module including an emitter and a unit for measuring voltage of the primary conductor, at least one secondary module including a receiver, an intensity sensor of current in the secondary conductor, and a unit for calculating energy of the current. The primary module compresses the measured voltage value and emits, to each secondary module, a first message containing the compressed measured voltage value. A time synchronization mechanism performs time synchronization of each intensity sensor with the voltage measuring unit. The calculating unit is connected to the receiver and can calculate energy from the measured voltage and intensity values.

Abstract: A system for detecting an electrical fault in an electrical installation including several electrical conductors, the system including at least two measurement modules, each measurement module including first radioelectric communication device, a sensor for measuring each electrical magnitude associated with a corresponding electrical conductor and a first clock defined by a first initial instant and a first clock frequency, each measured value being suitable for being associated with a first instant of measurement, determined with respect to the first initial instant and as a function of the first frequency, an acquisition unit, including second radioelectric means adapted for communicating with the first radioelectric communication device.

Abstract: A communication gateway including: a first communication interface for communicating, over a first communication network, with a mobile terminal; a second wireless communication interface for communicating, over a second communication network, with at least one external device. The communication gateway; an electrical energy recovery mechanism configured to recover electrical energy supplied by the mobile terminal; and a non-volatile memory powered by the electrical energy recovered and a microcontroller connected to the non-volatile memory and configured to exchange data with the mobile terminal over the first communication network and with the external device over the second communication network.

Abstract: An electric power metering device which includes a current sensor, an electronic measurement and rectifier circuit, a processing circuit and a transmitter connected to the processing circuit to transmit power messages to an electric power measurement receiver. An electric current integration capacitor is connected to the current sensor via a rectifier circuit. A switch is commanded by a threshold detector to supply to the processing circuit and the transmitter power accumulated in the capacitor when its electric voltage has exceeded a predefined voltage threshold. A power message representative of a quantity of electric power is then transmitted. A power metering method includes transmission of a power message when a capacitor voltage has reached a voltage threshold.

Abstract: A system for detecting an electrical fault in an electrical installation including several electrical conductors, the system including at least two measurement modules, each measurement module including first radioelectric communication device, a sensor for measuring each electrical magnitude associated with a corresponding electrical conductor and a first clock defined by a first initial instant and a first clock frequency, each measured value being suitable for being associated with a first instant of measurement, determined with respect to the first initial instant and as a function of the first frequency, an acquisition unit, including second radioelectric means adapted for communicating with the first radioelectric communication device.

Abstract: A communication gateway including: a first communication interface for communicating, over a first communication network, with a mobile terminal; a second wireless communication interface for communicating, over a second communication network, with at least one external device. The communication gateway; an electrical energy recovery mechanism configured to recover electrical energy supplied by the mobile terminal; and a non-volatile memory powered by the electrical energy recovered and a microcontroller connected to the non-volatile memory and configured to exchange data with the mobile terminal over the first communication network and with the external device over the second communication network.

Abstract: This system comprises a first device comprising a member for measuring voltage of a primary conductor, means for sampling the measured voltage, means for transmitting a first message, and means for determining a set of variable values representative of the voltage, based on the voltage measured during a given transmission period; at least one second device having a current sensor for determining intensity in a secondary conductor connected to the primary conductor, means for sampling the measured intensity; and a member for calculating said energy, including means for receiving the first message and being configured for calculating an energy during the given transmission period on the basis of said data set and intensity samples associated with the given transmission period. The determination means are configured for determining said data set based on a correction coefficient which depends on a value representative of the voltage only for each voltage period where said value is greater than a threshold.

Abstract: The system (20) according to the invention for calculating an electric quantity relative to an electrical installation comprising several secondary electrical conductors (42A, . . . , 48C) electrically connected to a primary electrical conductor (34; 36; 38). This system comprises a first module (60) including a wireless transmitter (70) and a plurality of second modules (62A, 62B, 62C). Each second module includes first means (84A, 88A; 84B, 88B; 84C, 88C) for receiving a first synchronization message (M1) and second transmission means (84A, . . . , 88C) for sending a second message (M2A, M2B, M2C) containing at least one intensity value measured by the corresponding current sensor to a third module (63). The intensity values are measured quasi-simultaneously and the third module includes a unit (104) for calculating the electric quantity from intensity values received via said second messages.

Abstract: A system to measure electrical energy of current in a secondary electrical conductor connected to a primary electrical conductor, the primary and secondary conductors having substantially same voltage. The system includes a primary module including an emitter and a unit for measuring voltage of the primary conductor, at least one secondary module including a receiver, an intensity sensor of current in the secondary conductor, and a unit for calculating energy of the current. The primary module compresses the measured voltage value and emits, to each secondary module, a first message containing the compressed measured voltage value. A time synchronization mechanism performs time synchronization of each intensity sensor with the voltage measuring unit. The calculating unit is connected to the receiver and can calculate energy from the measured voltage and intensity values.

Abstract: A wireless current sensor for measuring an electrical current flowing in an electrical conductor comprising a current transformer including a core arranged around the electrical conductor and forming a primary of the current transformer, and a winding around the core and forming a secondary of the current transformer in order to retrieve an electrical power when an electrical current flows in the electrical conductor, and an electronic circuit connected to the secondary of the current transformer, the electronic circuit including means for storing the generated electrical power, means for measuring the electrical current flowing in the electrical conductor, and a wireless data transceiver coupled to a microcontroller to send the measurement data.

Abstract: The gateway communication device for wireless communication networks receives messages from a low-power transmitter and communicates with a network. In a system comprising several gateway devices for a low-power transmitter, a master gateway device is defined. Definition of a master gateway device is based on reception quality indicators of the gateway devices situated in said reception zone of messages transmitted by said low-power transmitter. The gateway device having the highest reception quality indicator is selected to be said master gateway device. The communication method also defines a master gateway device in the same way. The master gateway device then selects a backup gateway device to store link tables and in certain cases to act in the place of the master.

Abstract: The invention relates to a wireless current sensor (10) designed for measuring an electrical current (I) flowing in an electrical conductor (20), the said wireless current sensor (10) comprising: a current transformer comprising a core designed to be arranged around the said electrical conductor (20) forming a primary of the said transformer, and a winding (101) made around the core and forming a secondary of the said transformer in order to retrieve an electrical power when an electrical current flows in the electrical conductor, an electronic circuit connected to the secondary of the transformer, the electronic circuit comprising means for storing the generated electrical power, means for measuring the electrical current flowing in the electrical conductor (20) and a wireless data transceiver coupled to a microcontroller and making it possible to send the measurement data.

Abstract: A communication gateway includes a communication unit that transmits and receives messages in order to communicate with at least one remote communication node on a first wireless communication network according to a protocol which includes network access control (MAC), and receives messages originating from at least one transmitter transmitting messages on a second wireless communication network according to a protocol which does not include network access control (MAC). The protocols of the first and second wireless communication networks use a same physical layer (PHY).

Abstract: The electric power metering device comprises a current sensor, an electronic measurement and rectifier circuit, a processing circuit and a transmitter connected to the processing circuit to transmit power messages to an electric power measurement receiver. An electric current integration capacitor is connected to the current sensor via rectifier means. A switch is commanded by a threshold detector to trigger power supply of the processing circuit and the transmitter with a power accumulated in the capacitor when its electric voltage has exceeded a predefined voltage threshold. A power message representative of a quantity of electric power is then transmitted. The power metering method comprises transmission of a power message when the capacitor voltage has reached a voltage threshold.