基于单总线技术的中央空调节能测温系统

Design of temperature measuring system based upon digital monobus technology

本文提出了一种基于单片机并采用数字化单总线技术的温度测控系统应用于商场温度集中监控的设计方案,采用DS18B20数字式温度传感器。这种设计方案能对商场各楼层、多点进行温度实时巡检,根据主控制机的指令对温度进行定时采集,测量结果通过RS-485总线及通信协议传送至计算机,进而进行存档、处理。该系统不需要任何固定的网络支持,安装简单方便,系统稳定可靠,可维护性好。

This paper gives a store temperature control project which is based upon the SCM and digital monobus technology. This project can make real time patrol checking to the different nod＇s temperature in the store, and every separate checking unit can finish its task independently. At the same time, every separate checking unit can make timing collection according to the instruction from the main control, and the measure results can not only be displayed at home but also can be further processed and be kept in the archives by using the SCM＇s serial interface and RS-485 bus and communication protocols. This temperature control system doesn＇t need any fixed network to support, and is stable, easy to install and convenient to maintain.