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Precise Shearer Positioning Technology Using Shearer Motion Constraint and Magnetometer Aided SINS

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  • Ming Yan
  • Zengcai Wang

Abstract

The key technology to realize intelligent unmanned coal mining is the strapdown inertial navigation system (SINS); however, the gradual increase of cumulative error during the working process needs to be solved. On the basis of an SINS/odometer (OD)-integrated navigation system, this paper adds magnetometer (MAG)-aided positioning and proposes an SINS/OD/MAG-integrated shearer navigation system. The velocity observation equation is obtained from the speed constraints during shearer movement, and the yaw angle observation equation is obtained from the magnetometer output. The position information of the SINS output is calibrated using these two observations. In order to improve the fault tolerance of the integrated navigation system, an adaptive federated Kalman filter is established to complete the data fusion of the SINS. Experimental results show that the positioning accuracy of the SINS/OD/MAG-integrated navigation system is 75.64% and 74.01% higher in the east and north directions, respectively, than the SINS/OD-integrated navigation system.

Suggested Citation

  • Ming Yan & Zengcai Wang, 2021. "Precise Shearer Positioning Technology Using Shearer Motion Constraint and Magnetometer Aided SINS," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-12, March.
    • Handle: RePEc:hin:jnlmpe:1679014
    DOI: 10.1155/2021/1679014
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