AN ELECTRIC CHARGING SYSTEM, A POWER MEASURING INSTRUMENT AND A MOBILE TERMINAL FOR AN ELECTRIC CHARGING SYSTEM AND A CONTROL METHOD THEREOF

摘要

PURPOSE: An electricity fee payment system, an electricity metering device for the electricity fee payment system, a mobile communication terminal and a control method are provided to apply differential electricity fees of each time zone without installing an additional communication device for connecting the electricity metering device to an external communication network. CONSTITUTION: An electricity metering device(110) meters the amount of electricity corresponding to each time zone of a consumer. A mobile communication terminal(130) receives information for the amount of electricity corresponding to each time zone from the electricity metering device. The mobile communication terminal transmits the information for the amount of electricity A calculation device(150) generates charging information for the consumer. [Reference numerals] (110) Electricity metering device; (111) Metering module; (113) Storage module; (115) First proximity communication module; (117) First security module; (119) First antenna; (130) Mobile communication terminal; (131) Second proximity communication module; (133) Second security module; (135) Mobile communication module; (137) Second antenna; (150) Calculation device; (151) Communication and authentication processing module; (155) Calculation module; (AA) Power line; (B1,B2,B3) Authentication key; (CC) Application