基于CAN总线的分布式温室控制系统

传统的温室控制柜通常集温度、湿度、光照、CO2浓度等参数采集，各种开关器件的控制于一体，这样对于温室这样的体积大，面积大的控制对象来说，传统控制会造成线路复杂，走线过长，可扩展性差等缺点。对于这样的控制对象本文采用CAN总线将各个独立的单元有机的结合起来，充分利用CAN总线的实时、可靠、传输距离远的特点构成分布式控制系统，克服传统控制器的上述缺点。

Distributed Control System for Worming-room Based on CAN Bus

The classical control system of worming-room often has all the functions of collecting parameters such as temperature, humidity, sunlight, CO2 density etc. and of the control of switch devices. Thus many issues are induced such as the length and complicity of conducting lines and less extending ability of the entire system. For such an object it can be divided into several independent parts which is related together by CAN bus. Fully utilizing the real-time ability, reliability and transmitting long distance of CAN bus, this article overcome the above shortcomings.