Fully mechanized coal mining working face bracket multi-state and piston descending amount measuring system

The utility model provides a fully mechanized coal mining working face bracket multi-state and piston descending amount measuring system which comprises a system host machine, a top beam inclined angle sensor, a shield beam inclined angle sensor, and a connecting line. The top beam inclined angle sensor is installed on the top beam of a bracket and is used for measuring the inclined angle of the top beam. The shield beam inclined angle sensor is installed on the shield beam of the bracket and is used for measuring the inclined angle of the shield beam. The connecting line is used for connecting the top beam inclined angle sensor and the shield beam inclined angle sensor to the system host machine. According to the system, the multiple-state information of the top beam, the shield beam, four connecting rods and the bracket can be accurately obtained, the piston descending amount value of the bracket can be accurately obtained, and the disadvantages of large working intensity of workers, high monitoring cost, poor data real-time performance and low accuracy in fully mechanized coal mining working face bracket state and piston descending amount measurement are effectively eliminated.