3results about "Remote metering" patented technology

The present application discloses a method and a device for notifying a power disconnection. The invention relates to a method and a device for transmitting a message from a first node device to one or more node devices that are neighbours of said node device, said node devices belonging to a power supply network using power lines and radio communication. According to the invention: - said first node device detects (E40) a disconnection of an electricity supply, - said first node device checks (E42) in a routing table if it is connected to a neighbouring node device by a radio link, - if yes, said first node device sends (E43) a unicast message to said neighbouring node device by said radio link indicating a disconnection of said electricity supply to said first node device, - if no, said first node device sends (E44) a radio broadcast message indicating that said first node device detected a disconnection of said electricity supply.

Systems and methods for setting a carrier-sensing mechanism in a PLC node are disclosed. In a PLC standard, coexistence is achieved by having the nodes detect a common preamble and backing off by a Coexistence InterFrame Space (cEIFS) time period to help the node to avoid interfering with the other technologies. In one embodiment, a PHY primitive is sent from the PHY to the MAC know that there has been a preamble detection. A two-level indication may be used—one indication after receiving the preamble and other indication after decoding the entire frame. The MAC sets the carrier-sensing mechanism based on the preamble detection.