Coal mine low power laser methane detection and alarm instrument

Jie Hu; Yu Bin Wei; Hang Zhang; Hui Meng; Guang Xian Jin; Tong Yu Liu; Tong Sun; Kenneth T. V. Grattan

doi:10.1117/12.2548071

18 December 2019 Coal mine low power laser methane detection and alarm instrument

Jie Hu, Yu Bin Wei, Hang Zhang, Hui Meng, Guang Xian Jin, Tong Yu Liu, Tong Sun, Kenneth T. V. Grattan

Proceedings Volume 11340, AOPC 2019: Optical Fiber Sensors and Communication; 113401M (2019) https://doi.org/10.1117/12.2548071
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

At present, the portable carrier catalytic methane detection and alarm instrument for coal mine generally has many problems, such as high power consumption, short standby time, low detection accuracy, few parameters and single function, which can not meet the rapid development needs of mine safety. In this paper, a low power portable laser methane detection and alarm instrument based on tunable laser absorption spectroscopy (TDLAS) is designed. The instrument can detect methane concentration, ambient temperature and ambient pressure at the same time. It has the functions of sound and light alarm, historical data storage and query, and integrates Wi-Fi to realize data wireless transmission. The instrument can work continuously for 36 hours, and the response time is less than 15 seconds. It has the function of self-diagnosis. The overall performance of the instrument has been greatly improved compared with the traditional mine methane portable instrument. A mobile methane alarm Internet of things(IOT) system for coal mine based on portable instrument has been developed, which realizes real-time upload of data and cloud analysis, makes the traditional mine gas monitoring and control system powerfully supplemented, greatly improves the detection level of coal mine gas, and has broad application prospects.

Citation Download Citation

Jie Hu, Yu Bin Wei, Hang Zhang, Hui Meng, Guang Xian Jin, Tong Yu Liu, Tong Sun, and Kenneth T. V. Grattan "Coal mine low power laser methane detection and alarm instrument", Proc. SPIE 11340, AOPC 2019: Optical Fiber Sensors and Communication, 113401M (18 December 2019); https://doi.org/10.1117/12.2548071

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