Intelligent and unmanned" is the main trend of the development of modern coal mining in my country. The fully mechanized shearer is the main equipment for large-scale coal mining. The measurement before advancing, the straightness of the chute is calculated through the measurement, and the position reference is provided for the subsequent advancing of the chute. At present, the chute straightness measurement equipment for fully mechanized shearers in China mainly relies on imports, and localization is in its infancy. The National Energy Coal Mine Mining Machinery Equipment R&D Center has tested and verified that the product chute straightness measurement accuracy has reached the same level as that of foreign imported products. At present, the research and development system is in the operation test of the underground fully mechanized shearer in Huangling Coal Mine.

Yingqi Tang, Hongtao Dang, Yang Zheng, Yan Zhang, Yu Wang. A system for measuring straightness of chute running in fully mechanized shearer. International Journal of Frontiers in Engineering Technology (2022), Vol. 4, Issue 7: 6-11. https://doi.org/10.25236/IJFET.2022.040702.

[1] Li Ang, Hao Shangqing, Wang Shibo, et al. Shearer positioning method and experimental research based on SINS/shaft encoder combination [J]. Coal Science and Technology, 2016, 44(4): 95-100.

[2] Rafatnia S, Nourmohammadi H, Keighobadi J. Fuzzy-adaptive constrained data fusion algorithm for indirect centralized integrated SINS/GNSS navigation system [J]. GPS Solutions, 2019, 23(3): 62.

[3] Sammarco J J.Mining machine orientation using inertial, magnetic, and gravitationalsensors[C], dustry Applications Society Meeting. IEEE, 1988.

[4] Chi H, Xin L I, Zang H, et al. Research on positioning and navigation method with laser ranging for underground vehicles. Mining & Processing Equipment, 2015.

[5] FAN Q, LI W, LUO C. Error analysis and reduction for shearer po- sitioning using the strap down inertial navigation system [J]. International Journal of Computer Science Issues, 2012, 9(5): 49-54.

[6] Wang Shijia, Wang Shibo, Zhang Boyuan, etc. Dynamic zero-speed correction technology for shearer inertial navigation and positioning [J]. Chinese Journal of Coal, 2018, 43(2): 578-583.