嵌入式矿井通风机在线监测与故障诊断系统设计

Design of embedded online monitoring and fault diagnosis system of mine ventilator

针对现有的矿井通风机在线监测与预警系统存在体积大、维护成本高,采用Windows操作系统缺乏专用性、易误操作等问题,设计了一种嵌入式矿井通风机在线监测与故障诊断系统。通风机和电动机的振动、温度、负压、电压和电流等监测量由对应的传感器和智能仪表传入到PLC数据采集系统,PLC数据采集系统将数据送入以太网模块,系统通过协议解析得到相应数据,显示在嵌入式设备上,并进行实时诊断和故障报警;带有RS485通信接口的振动传感器、温度巡检仪、智能电表,通过ModBus协议将采集的数据传送给嵌入式总线模块,实现监测与诊断功能。测试结果表明,该系统满足矿井通风机在线监测的各项技术指标,同时实现了监测设备的小型化和多样化。

In view of problems of big volume, high maintenance cost, lacking specificity and easy to error operation by use of Window operating system in current online monitoring and pre-warning system of mine ventilator, an embedded online monitoring and fault diagnosis system of mine ventilator was designed. Monitored quantities such as vibration, temperature, negative pressure, voltage and current of ventilator and motor are sent to PLC data collection system through corresponding sensors and intelligent instruments, and the PLC data collection system sends data to Ethernet module. The system can get the corresponding data through protocol analysis, display the data on embedded device and make real-time diagnosis and fault alarming. Vibration sensor, temperature patrol instrument and intelligent electric meter with RS485 communication interface send collected data to embedded bus module through ModBus protocol to realize monitoring and diagnosis functions. Test result shows that the system meets each technical index of online monitoring of mine ventilator and realizes miniaturization and diversification of monitoring device.