目前，全国煤矿井下普遍使用的便携式热催化甲烷检测报警仪均采用人工调整电位器进行调零和调校，存在测量误差大，稳定性差，可靠性低等问题；同时仪器电池充放电人工管理，易造成过充电或过放电，减少电池寿命；调校维修工作量大，应用的效果不理想。另外，井下环境温度、时 At present, the commonly used portable methane detection alarm detectors in coal mines in the country adopt manual adjustment potentiometers for zeroing and adjustment, which have the problems of large measurement error, poor stability and low reliability; at the same time, the manual management of battery charge and discharge, Easily lead to overcharge or over discharge, reduce battery life; adjust the maintenance workload, the application of the effect is not satisfactory. In addition, the underground temperature, when