摘要
针对煤矿监测监控系统中RS-485总线通信能力较低、设备通讯接口不统一的问题,提出把虚拟串口VCOM技术和CAN-bus总线相结合,为煤矿监测监控系统提供一种简单可靠的、具有统一远程终端通讯接口的组网方式。通过虚拟串口VCOM技术的应用,使1条CAN总线上可连接多达2048个RS-485设备,通讯距离可以长达10 km甚至更远。
According to the problem of the RS - 485 which has less communications capacity and the lack of unified equipment communication interface in mine monitoring system, this paper provided a networking solution of combinative the VCOM technology and CAN- bus which is simple, reliable and with the unified remote terminal communication interface. Through the application of VCOM technology, a CAN - bus can connect as many as 2048 RS - 485 equipments and communication distance can be as long as 10 kilometers even farther.
出处
《煤炭技术》
CAS
2008年第12期29-31,共3页
Coal Technology
基金
黑龙江省重大科技攻关项目(GA04A501)
黑龙江省教育厅科学技术研究项目(10551279)
