工矿自动化2013，Vol.39Issue(1)：13-16,4.DOI:10.7526/j.issn.1671-251X.2013.01.004
瓦斯突变预警上限值确定方法的研究
Research of determination method of upper limit value of gas mutation pre-warning
摘要
Abstract
For problem that abnormal gas change below pre-set warning value cannot be found in time because existing safety monitoring and control systems of coal mine use overrun theory and take measured value by gas sensors as criterion, the paper proposed a pre-warning method for gas mutation below the preset limit value, and introduced two gas mutation pre-warning methods named static pre-warning and dynamic pre-warning. It did stratified sampling as well as distribution validation and fitting of static data and dynamic data of pre-warning basic data of gas mutation below the limit value according to probed gas data of N2202 working face of Yuwu Coal Mine, and got a conclusion that the basic data distribution of the static pre-warning and dynamic pre-warning is both in normal distribution. It also proposed a method to real-timely calculate upper limit value of the static pre-warning and dynamic pre-warning with hypothesis testing and interval estimation, which was verified by use of probed gas data of N2202 working face.关键词
煤矿监控/瓦斯突变预警/不超限预警/静态预警/动态预警/瓦斯体积分数/巡检周期Key words
coal mine monitoring and control/ gas mutation pre-warning/ pre-warning below pre-set limit value/ static pre-warning/ dynamic pre-warning/ gas volume fraction/ inspection cycle分类
矿业与冶金引用本文复制引用
芦建军,屈世甲..瓦斯突变预警上限值确定方法的研究[J].工矿自动化,2013,39(1):13-16,4.基金项目
中煤科工集团常州自动化研究院研发项目(12TY002). （12TY002）
