Development of data acquisition instrument for coal and gas outburst based on wireless communication

Abstract

Aiming at the problem of long measuring time and low efficiency of K1 value measuring instrument for drilling cuttings gas desorption index used in coal mine at present, based on the related requirements of prevention and control of coal and gas outburst and the field application of K1 value measurement instrument, it is determined that solving the connection between drilling and K1 value measurement is the key factor to improve the prediction efficiency. According to this, a coal seam gas outburst data acquisition instrument based on wireless communication is designed and implemented. Centering on the development of data acquisition instrument for coal seam gas outburst, this paper discusses the overall design idea, hardware circuit block diagram, software design process, operation process and test and verification of mobile phone special APP. The experimental data and design production show that the design of connecting multiple acquisition devices with one intrinsically safe mobile phone based on wireless communication can greatly improve the prediction efficiency.

Keywords

• gas outburst data acquisition instrument
• drill cuttings gas desorption index k1
• coal and gas outburst prediction
• wireless communication
• intelligent address allocation