The CAN bus 李强
Do you know what is CAN bus ？ The CAN is a serial communication protocol, it has many advantages, such as wiring simple, typical bus-control structure, saving wiring and maintenance cost, stability and reliable, real-time, strong anti-jamming capability and long distance transmission so on CAN是一种串行通信协议，它具有很多优点，布线简单，典型的总线型结构，节约布线和维护成本，稳定和可靠，实时，抗干扰能力强，传输距离远等
With the development of science and technology, information acquisition became an important process of the industrial control, CAN bus has also become a hotspot of research. The can bus with its outstanding advantages become the most loved field bus by re-searchers, it adopts differential signal transmission, normally , It could communicate stably and reliably with only two signal lines (CAN_H and CAN_L). 随着科技的发展，信息采集成了工业控制的一个重要出发点，现场总线也逐渐成为研究热点。CAN总线以其突出的优势成为最受研究者喜爱的现场总线之一，它采用差分信号传输，通常情况下只需要两根信号线（CAN_H 和CAN_L）就可以进行稳定、可靠的通信了。
FarEasTone water meter system which based on CAN bus This is the frame of the system
The smallest system module
Water meter acquisition module
The CAN communication module
The display module