Research status and development trend of position and posture measurement technology on hydraulic support,scraper conveyor,shearer in fully-mechanized mining face

To realize the independent monitoring and cooperative control of the operation posture in the fully-mechanized coal mining face equipment to meet the needs of intelligent coal mining,the current status of the research on the posture measurement technologies of the existing inertial measurement,sensor measurement and visual measurement of the hydraulic support,scraper conveyor,shearer in the face and problems of the existing measurement technology in the practical application were analyzed.The difficulties faced by the current position and attitude measurement technology on hydraulic support,scraper conveyor,shearer in coal mines and the corresponding solutions were proposed,and future technologies such as comprehensive and accurate acquisition of equipment posture parameters,real-time remote monitoring of equipment posture status,and equipment posture information effective association and optimization were prospected.The analysis shows that the existing measurement technology can basically achieve the acquisition of hydraulic support,scraper conveyor,shearer posture state information,but the measurement effect is greatly affected by the geological conditions of the working face,and it needs to be further improved in terms of accuracy,comprehensiveness of measurement parameters,and degree of automation.Most mines still need to use traditional measurement methods,resulting in uncomplete liberation of manual labor.The application of advanced technologies in the fully mechanized mining face has achieved results,but series of technical problems caused by the special mining environment still need to be further broken through.In further research,to promote the integration of multiple measurement technologies for realizing the complementarity and correction between the posture information of the hydraulic support,scraper conveyor,shearer，to break through the bottleneck of existing measurement technology,to solve the adaptive problems of advanced measurement technology,to independently develop high-precision and stable position and attitude measurement system of working face equipment,and to improve the intelligent monitoring level of working face equipment’s posture to ensure coal safe and efficient production is an important way to realize intelligent and unmanned mining.