【作者】 王宁； 李春茂； 朱俊峰；

【Author】 WANG Ning,LI Chun-mao,ZHU Jun-feng (Southwest Jiaotong University College of Electrical Engineering,Chengdu 610031,China)

【机构】 西南交通大学电气工程学院；

【摘要】 本文介绍了一种基于AVR单片机的监控系统,其硬件平台采用8位AVR单片机,软件平台使用开源实时操作系统μC/OS-Ⅱ,用于收集和监控生产过程的各种电信号和热信号,比如电压、电流,热电阻或热电偶的转换过来的电压信号等。然后这些数据可以通过RS-485总线发送到远程集散控制系统(DCS)中,具有长距离通信功能和抗干扰能力,提高了通信的可靠性,可以广泛应用于工业领域中。更多还原

【Abstract】 This paper introduces a monitoring system based on AVR microcontroller,whose hardware adopt AVR microcontroller with 8 - bit,and software utilizeμC / OS-Ⅱof real - time multitask operating system which is open - source,to collect and monitor the various of electric signals and thermal signals such as voltage,current,or some other voltage signals which is changed by thermal resistance or thermocouple.Then these data can be sent to the remote distributed control system(DCS) by RS - 485 bus.The system has a long - distance communication and anti - jamming capability,which improved the reliability of the communication,and can be widely used in industrial fields.更多还原