基于单片机与PC机的电气量采集系统设计

Design of Electric Parameters Acquisition System Based on MCU and PC

采用一款高精度的16位A/D转换芯片来采集电路中的电流电压值,并使用单片机STC89C52和PC机对采集数据进行处理分析。给出了电气量采集系统结构组成图、电流电压互感器电路、信号调理电路、A/D转换电路、通信电路以及软件设计和PC机上位机制作的详细过程。通过对实验结果进行分析比较,结果表明该电气量采集系统具有较高的测量精度,能够准确实时监控电气系统运行情况。

This design uses a high precision 16 bit A / D transformation chip to collect the current and voltage value in the circuit. It uses the microcontroller STC89C52 and PC machine to deal with data analysis. Structure diagram,current voltage transformer circuit,signal conditioning circuit,AD conversion circuit,communication circuit,the software design and the detailed programing process of the electric parameters acquisition system are also given in this paper.Through analyzing and comparing with the experiment results,it shows that the electric parameters acquisition system has high measurement precision and accurate real-time monitoring on the operation of the electrical system.