A mini digital methane detecting and alarm system for miners lamp

Methane detecting and alarm miners lamp has proved very effective on methane monitoring in recent decades. The functions of those lamps are limited for its size, caused high maintenance costs and performance instability. Aimed at computer technology, modern signal analysis and processing technology, a mini intelligent methane detecting and alarm system is developed. Firstly, the status of domestic and overseas research of the intelligent methane detecting system was presented. Then the auto-calibration methods are introduced to achieving the maintenance-free. The automatic and visualized calibration technologies of intelligent methane detecting system are described in detail. Finally, the experimental data is analyzed. The system improved the detection accuracy, prolonged calibration cycle of the methane measuring device and lessened the working strength on calibration. The mini methane detecting system can be mounted on alarm miners lamp, portable gas detector.