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Power line carrier communication presents new area for automatic meter reading, by equipped energy meter with power line system all user connect each other with this communication method, Smart metering uses all potential of this communication channel to presents new service in low voltage distribution grid, by installing smart meter detection system for detect illegal usage of electricity may be easily added to distribution network, in this method by sending test signal at high frequency in network, software calculates line impedance that connect each two energy meters, by comparing the data that related to installation time with other times data, system can find and locate place of illegal usage of electricity.
Pasdar et al. (2007) studied this question.