I. Introduction
With the application of a variety of new energy, the construction of the smart grid has become the focus of attention. Building AMI (Advanced Metering Infrastructure) is a key to the construction the smart grid, and Electric Energy Data Acquisition System is an important part of AMI [1]. Electric energy data acquisition system covers electricity production, electricity purchase, electricity transmission, electricity use, and electricity recycle, it can timely and accurately understand the power supply various company, and electric power sales of different regions and different lines [2]. It can calculate different levels of line loss, and analysis loss in the process of production process, it provide platform and technical support for two-way interaction between users and grid [3].