该代码主要用于智能电表行业中集中抄表系统，将电表的各项参数抄到该终端并进行相应处理后，上传给电力系统主站。-The code is mainly used for smart meter industry centralized meter reading system, the parameters of the meter copying the terminal and dealt with accordingly, uploaded to the power system master.

This file contains The NMG handout. Also, it has chapters from 1-45. All chapters are self contained