Following to the modularized design thought of from the top down, the thesis adopts Keil C51 as the program language.The program for data acquisition is designed, and the functions are realized.

• 遵循自顶向下的模块化设计思路，采用Keil C51语言，设计与实现了数据采集系统的软件，给出了系统软件总体设计流程图。