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在矿用监控系统工作站的升级过程中,通信协议已逐渐由原来的RS-485通信方式转换为CAN协议,但在监控系统的接口中仍存在多种工作方式。本文详细设计了CAN接口以及与上位机的串口连接。着重阐述了完善后的CAN接口多主工作方法的算法。试运行结果表明,该接口可以便捷稳定的在监控主机和各个监控节点之间交互数据。
In the upgrading process of mine monitoring system workstations, the communication protocol has gradually been converted from the original RS-485 communication method to the CAN protocol, but there are still many ways of working in the interface of the monitoring system. This text has designed CAN interface and the serial port connection with the host computer in detail. Emphatically elaborated the improved multi-master working method of CAN interface algorithm. The test results show that the interface can be convenient and stable in the monitoring host and monitoring data exchange between nodes.