基于CAN总线的远程温度检测系统的设计

emperature measurement has been applied in the automation field,which includes factory, power, building, granary, and so on.CAN bus is one of field bus which accords with international standard.It has significant advantages of simple structure, good real-time performance, high reliability, strong anti-interference ability, low cost, and so on. This paper introduces a kind of remote temperature detection system design based on CAN bus and 89C51. System of temperature are collected by DS18B20, and through a CAN bus realize date communication between detection nodes and the gateway. The system mainly consisted of the user interface, the gateway, detecting node three parts, and realized through the user's computer remote testing field temperature.