Design on height measuring system of mine hydraulic powered supportbased on inclination sensor

In order to solve a low intelligent degree, poor accuracy and other problems of the available mine height measuring plan for the hydraulic powered support, a height measuring plan of the hydraulic powered support under different attitude was studied, a design method of height measuring system based on inclination sensor was provided for the mine hydraulic powered support and the height measuring system of the mine hydraulic powered support was established based on the inclined sensor. And according to the strong electromagnetic and vibration interference caused the signal degradation problem in the underground mine, the wavelet decomposition and reconstruction were conducted on the collected data and the accuracy of the height measuring system was improved under the harsh environment. Meanwhile,from the aspects to improve the anti-interference capability of the communication, to increase the transmission distance and others, the further study orientation was provided. The height measuring system of the mine hydraulic powered support was tested in the lab and the underground mine. The results showed that under the harsh environment, the error of the height measuring system was within 10 cm and could meet the actual requirements of the coal mining face.