采空区自然发火监测系统的设计

摘要

针对现有的采空区自然发火监测方式成本高、易出现故障、维护困难且有线传输方式不可靠的问题,采用无线射频技术和CAN总线技术设计了一种采空区自然发火监测系统,详细介绍了系统的整体架构,主要硬件部分的设计,以及无线通信频率、探头工作时序、无线接收分站工作流程、无线路由控制协议等关键技术的实现等.测试结果表明,该系统组网快速,当两探头间距小于150 m时能够对各监测节点处的温度数据进行实时采集及可靠传输,工作寿命达90 d.%In order to solve problems of high cost, frequent faults, difficult maintenance and unreliable cable transmission of existing monitoring modes of spontaneous combustion in goaf, a monitoring system of spontaneous combustion in goaf was designed by use of technologies of wireless RF and CAN bus, and whole structure, main hardware parts and realization of key technologies of the system were introduced in details including frequency of wireless communication, working time sequence of probe, working flow of wireless receiving substation and control protocol of wireless route. The testing result showed the system can set up a network quickly and real-timely collect and correctly transmit temperature data of monitored points when distance between two probes is more than 150 m, and working life of the probe acheives 90 d.