摘要:
在分析温度监测法、气体监测法、烟雾监测法、可见光图像监测法、红外图像监测法等矿井火灾监测方法原理和特点的基础上，提出了基于多参数融合的矿井火灾监测与趋势预测方法，得出以下结论：① 热电偶测温法和半导体测温法具有准确率高、实时性强、能及时发现早期火灾等优点，但存在传感器用量大、维护工作量大等缺点；红外测温法具有监测范围广、传感器易于布置等优点，但传感器与被测物体间的遮挡物和煤尘等均会影响监测结果；光纤分布式测温法具有可监测多点温度、线缆用量小等优点，但存在光纤易损坏、安装复杂、维护困难等缺点。② 气体监测法和烟雾监测法具有监测范围广、使用与维护方便等优点，但不能监测标志性气体浓度低、烟雾较小的早期火灾。③ 可见光图像监测法具有监测范围广、使用与维护方便、成本低等优点，但巷道灯、矿灯、车灯和红色衣物等干扰源及烟雾等均会影响监测效果，且不能监测没有火焰和烟雾较小的早期火灾。④ 红外图像监测法具有监测范围广、使用与维护方便等优点，但成本高，红外摄像机与被测物体间的遮挡物和煤尘等均会影响监测效果。⑤ 基于温度、烟雾、气体浓度、气味、风向、风速、风量、可见光图像和红外图像等多参数融合的矿井火灾监测与趋势预测方法不但能及时发现火灾，还可定位火源、预测火灾发展趋势。
Abstract:
Based on analysis of principle and characteristics of mine fire monitoring methods such as temperature monitoring method, gas monitoring method, smoke monitoring method, visible light image monitoring method and infrared image monitoring method, a mine fire monitoring and trend prediction method based on multi-parameter fusion was proposed. Conclusions were got as following:① Thermocouple temperature measurement method and semiconductor temperature measurement method have advantages of high accuracy, strong real-time performance and early detection of early fire, but there are disadvantages such as large sensor consumption and large maintenance workload; Infrared temperature measurement method has advantages of wide monitoring range and easy sensor arrangement, but shielding and coal dust between sensor and measured object will affect monitoring result; Fiber distributed temperature measurement method has advantages of multi-point temperature monitoring and small amount of cable consumption, but there are disadvantages such as easy damage, complicated installation and difficult maintenance of optical fiber. ② Gas monitoring method and smoke monitoring method have advantages of wide monitoring range, convenient use and maintenance, but there are disadvantages such as cannot monitor early fire with low concentration of index gas and less smoke. ③ Visible light image monitoring method has advantages of wide monitoring range, convenient use and maintenance, low cost, but interference sources such as roadway light, miner's lamp, vehicle lamp and red clothes and smoke will affect monitoring effect, and the method cannot monitor early fire with no flame and less smoke.④ Infrared image monitoring method has advantages of wide monitoring range, convenient use and maintenance, but cost is high, and shielding and coal dust between infrared camera and measured object will affect monitoring effect. ⑤ Mine fire monitoring and trend prediction method based on multi-parameter fusion of temperature, smoke, gas concentration, odor, wind direction, wind speed, air volume, visible light image and infrared image can not only detect fire in time, but also locate fire source and predict fire development trend.
百度学术
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