Energy meter, energy meter theft detection method, and power supply system

摘要

An electricity meter forms a wireless mesh network with one or more data collecting devices collecting electric energy data. The electricity meter includes a wireless communication unit (a wireless unit 51, a data-relay processing unit 53) that transmits an amount of electricity consumed by a customer directly or via other adjacent electricity meters to a data collecting device selected as a data transmission destination, a wireless communication control unit 57 that determines existence of a movement of the electricity meter itself based on the number of variations in adjacent electricity meters and existence of a variation in a reception level of a signal transmitted from each of the adjacent electricity meters, and relay 62 that stops an operation of a circuit of supplying electric power to a customer when it is determined that "movement exists".