基于AT89C51的恒温检测系统在粮仓中应用

Application of Constant Temperature Monitoring System Based on AT89C51 in Hydropower Station

针对我国中小型粮仓目前使用温度巡检装置测量误差问题,设计了以温度传感器DS18B20传感器和AT89C51单片机芯片为核心的新型温度巡测系统,系统采用单总线传感器网络的设计思想。简化了多点温度检测的硬件设备、设计原理及外部接线方式,并有效的提高可温度测量的精度及分辨率。

This paper has introduced the importance of temperature monitoring and its application in hydropower station. The multi-point temperature survey monitoring device which is applied presently in the small and medium size hydropower stations in China. A new temperature survey monitoring system which is based on DS18B20 sensor and 89C51 CPU chip has been designed. The system adopts 1-Wire sensor net technique. Many sensors are connected to 1-Wire bus as intelligent terminals. It has greatly simplified the hardware of multi-point temperature monitoring systems, as well as its design theory and extremely wiring method. Moreover, it has effectively increased the precision and resolving power of temperature monitoring.