Advanced metering infrastructure(AMI) utilizes various advanced technologies, like modern power, electronics, computers and network communication and so on, to compound an entire network architecture (between power companies and users) , which supports IEC international standard communication protocol and forward agreement and applicable to the management of power consumption information and power grid quality inspection towards all users, substation and residential buildings. The entire system is composed of the master station software system of the power management, DCU, collector, HHU, IHD and "intellect meter", which covers the collection and control of various measurement points and terminal facilities, leading to the automated and intelligent management system with the integration of the collection of power grid information, monitoring, analysis, management. Its primary function is to offer the data acquisition of measurement point (single and three phase meter), intelligent switch, intelligent transformer etc. and to provide considerable indications of the power supply reliability such as electricity monitoring, the voltage, current, power quality, electricity stolen and leakage of real-time intelligent monitoring power gird and so on, which realizes the unified analysis management applications of electricity information, resulting in the fact that it provides data inferences for the optimization of the entire power grid and develops line wasting- analysis and other demanding management applications.
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