Research Article
Research on Monitoring and Regularity of Coal Mine Methane Extraction State
@INPROCEEDINGS{10.1007/978-3-030-63941-9_17, author={Chao Wu and Yuliang Wu and Changshegn Zhu and Chengyuan Zhang and Qingjun Song}, title={Research on Monitoring and Regularity of Coal Mine Methane Extraction State}, proceedings={6GN for Future Wireless Networks. Third EAI International Conference, 6GN 2020, Tianjin, China, August 15-16, 2020, Proceedings}, proceedings_a={6GN}, year={2021}, month={1}, keywords={Gas extraction Gas concentration Wireless communication Residual gas Drainage time}, doi={10.1007/978-3-030-63941-9_17} }- Chao Wu
Yuliang Wu
Changshegn Zhu
Chengyuan Zhang
Qingjun Song
Year: 2021
Research on Monitoring and Regularity of Coal Mine Methane Extraction State
6GN
Springer
DOI: 10.1007/978-3-030-63941-9_17
Abstract
The existing gas drainage monitoring system only can measure the gas concentration of the drainage, can’t dynamically predict the residual gas and the drainage cycle of the coal seam according to the drainage parameters. The mining conditions of deep coal seams have become complicated by the increasing depth of mining. The measurement of the extraction status becomes more and more difficult. It is of great practical significance to effectively predict the drainage time and the gas content of coal seam. In order to increase the gas drainage concentration of coal seam under the coal mine, combined with the actual situation at the coal mine site, a gas drainage pipeline control system was designed and developed. It is mainly composed of gas sensors, microcontroller, miniature electric valves, power conversion circuits, and wireless communication modules. In view of the non-linear, multi-coupling and hysteresis characteristics of gas flow, a fuzzy control algorithm is adopted by the controller. By measuring the gas concentration and pressure of the field extraction pipeline, the microcontroller STM8 working as the control core controls opening of the pipeline valve according to the fuzzy control law. Finally the purpose of increasing the concentration of the extracted gas is achieved. Both the fuzzy control algorithm and the system circuit is designed in detail. The system has the characteristics of long-distance wireless communication, compact structure and low power consumption. It can increase the concentration of gas extraction, which is of great significance for the gas prevention and management and coal mine gas extraction.
