停车场车位监控系统数据的串行通讯

Data Communication of Parking lots Monitorning System based Serial Interface

文章对采用PLC作为现场控制器的停车场车辆车位监控系统的相关信息进行分析、综合、归纳,在此基础上依据PLC串行通讯的自由口通讯模式制定了通讯协议并对数据信息的传递提出了可行的方案,同时对数据信息通讯中涉及的关键技术作了简要介绍。

This paper concludes the correlation information of parking lots monitorning system,creates the user-defined communication protocol with the freeport mode of programmable logic controller and the scheme of data communication are presented and introduces the key technique briefly.