| In the coal mine safety production operation of our country, the security problem of personnel and equipment consistently is the colliery exploit profession takes seriously the issue of concern, in numerous security problems, what is most important is the coal mine gas gas causes the volume explosion accident, will create the giant personnel and property damage in the event of the coal mine gas explosion, the gaseous methane is the main ingredient of gas gas. Traditionally, the examination of gaseous methane mostly uses the scientific method of chemical apparatus, but this method exists insufficient, deepens along with the understanding, the people start to study to use the optical method to replace the method of chemical inspect. Comparatively speaking, optical method enhanced in each aspect compared with chemical method, for example on measurement accuracy and measuring range.The present paper through to the gas gas (essential component is methane) the historical development background of detecting technology and domestic and foreign to the introduction of its research situation, regarding flaw and limited problem analysis that in the traditional gaseous methane test system has, proposed ant algorithm-based the spectral absorption optical fiber methane monitor system.The present paper has constructed ant algorithm-based the spectral absorption fiber methane sensor technology system, introduced the basic principle of gas spectrum absorption and ant algorithm, introduced in detail ant BP neural network algorithm, the system used the model is the MXSLD-CS65M5A laser, the chopper, survey air chamber and other gaseous methane sensor systems, carried on the optimization design to the measurement data through the use ant BP neural network algorithm, finally selected the LabView software to carry on the survey to demonstrate to the data, the operational feasibility of test system.Through the experimental work, examined ant algorithm-based spectral absorption fiber methane sensor system the effect, this systematic testing data can preserve through the design of LabView software, achieves the good operation effect to the examination of gaseous methane density, the system has the live monitoring and auto-alarm function. The spectral absorption fiber methane sensor system of research ant algorithm-based has the extremely important significance and application prospect regarding the coal mine safety production. |