AUTOMATIC METER READING SYSTEM AND METHOD FOR DETECTING PHASE

摘要

PURPOSE: An automatic meter reading system for phase detection and a method thereof are provided to simply and inexpensively perform power phase detection and power outage monitoring by an electric power user. CONSTITUTION: An automatic meter reading system(100) for a phase detection includes a watt hour meter(110) and a data concentration unit(120). The watt hour meter synchronizes with a phase detection signal corresponding to the phase of power supplied from a transformer and transmits a phase detection packet. The data concentration unit recognizes a supply power phase signal corresponding to the phase of the supplied power from the transformer by each phase and determines the phase of power supplied to the watt hour meter using the recognized supply power phase signal and the phase detection packet transmitted by the watt hour meter. The watt hour meter includes a phase detection signal generator(111) and a phase detection packet transmitter(112). The phase detection signal generator generates the phase detection signal corresponding to the phase of power supplied from the transformer to the watt hour meter. The phase detection packet transmitter synchronizes with the phase detection signal and transmits the phase detection packet. [Reference numerals] (10) Transformer; (110,110',110'',100''') Watt hour meter; (111) Phase detection signal generator; (112) Phase detection packet transmitter; (113) Power failure detector; (114) Energy storage unit; (120) Data concentration unit; (121) Transformer monitoring unit; (122) Remote meter; (20) Server