High-Precision Digital Barometer Design for Coal Mining

Coal resource, one of the important energy resources, is widely used in the industrial field as well as the civilian area. For a long time, china relies on the coal resource for national production and this trend will not be reversed in the near future. There are a large number of coal mines in China and safety concern must be put into the first priority. Ventilation resistance can reveal the potential safety risk in mines. It has to be measured according to certain regulations to eliminate the hazard in advance. Among the available methods, the barometer method is the most effective. A high-precision barometer with data storage and wireless communication is designed in this paper. The working principle is introduced at first. And then the detailed design including hardware, software and the operational panel is expressed. The experimental part verifies the feasibility of the barometer. In the end, the conclusion part summarizes the whole paper and makes forecast of application prospect.