基于双单片机的多路数据采集系统设计

Design of multi-channel data acquisition system based on double MCU

本系统采用双单片机和E2PROM共享数据的方式实现通讯,通过下位机采集数据,上位机处理数据实现现场的远距离数据采集。实验证明该方式有效解决模拟量受干扰而影响精度的问题,弥补传统的双单片机串行传输方式传输距离短、传输速率低的缺陷。

The system originally applied the mode of double MCU and E^2PROM sharing data to achieve the communication,applied the down-stream CPU to collect the data and the up-stream CPU to tackle with the data to attain the remote data acquisition.The experiment proved that this approach could resolve the precision problem because of the simulate quantity being interfered,and compensate the flaw that caused by the transportation limitations of short in distant and low in velocity under traditional two-MCU serial communication mode.