基于ZigBee的采空区无线自组网测温系统分析

 煤自燃是煤矿重大灾害之一，不仅造成经济损失而且为矿井安全生产埋下重大隐患。采空区是易发生煤自燃的重点区域，因此，对采空区煤自燃进行早期监测显得尤为重要。鉴于采空区的特点，一些常用监测方法较难实施，而利用温度传感器自动监测采空区温度成为较好选择。文章主要介绍了基于ZigBee的无线自组网测温技术于采空区的应用。系统中各测温节点间实现无线通信，并将实时监测的温度信息传输至地面监控中心。通过模拟巷道试验、现场工业试验表明该系统在复杂环境下和设计距离范围内通信稳定，能够准确、较长时间、较大范围对采空区温度进行监测，最终达到对采空区煤自然发火早期预测的目的。

The Analysis of Wireless Ad-hoc Temperature MeasurementSystemUsed in Goaf Based on ZigBee

Coal spontaneous combustion is one of the severest disasters in coal mine. It will not only cause economic losses but also lead to potential dangers in the process of safety production in coal mine. Coal spontaneous combustion occurs frequently in goaf regions. Thus the corresponding early prediction becomes very important for the coal mine. According to the characteristics of the goaf region, the automatic temperature monitoring employing temperature sensor in the goaf region is the preferred approach now. On the basis of the ZigBee system monitoring the temperature of goaf, this paper presented the wireless Ad-hoc temperature measurement system adopted in goaf. The experimental results show that the system could operate well and monitor automatically large range of temperature values during long-time working period for the purpose of early prediction of coal spontaneous combustion.