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Precision Positioning System Marks a New Breakthrough in Ulan Mulun Coal Mine of Shendong Coal Group

Author: Hao He, Wu Ruijie Source: Shendong Coal Group Pubdate: 2022-08-10 Font size:【L M S

Recently, Ulan Mulun Coal Mine of Shendong Coal Group, CHN Energy Group, has been equipped with precise positioning system based on ultra-bandwidth wireless communication technology (UWB), with reference to the actual application results of “Ethernet ring and comprehensive communication substation” in the mine. This system not only achieves centimeter-level high-precision downhole positioning, but also has access to the exact locations at centimeter level without delay.

The system can accurately grasp the locations and distribution points of workers in underworkings and working faces, at any time and the activity track within each timeframe. An enormous leap is made under UWB+ZigBee Dual-Mode Positioning Terminal, with margin of error of either 30 cm in one-dimensional straight line or 50 cm in the 2D plane.

On this basis, Ulan Mulun Coal Mine varies the functions of UWB precise positioning for scenarios. Five scenarios have witnessed efficient organization and management of downhole equipment and personnel, including accurate positioning-based approach protection for personnel on the driving face, installation of anti-collision base stations, center consoles and other equipment on the shuttle car on the driving face, and positioning monitoring of personnel around the shuttle car.

After this system is put into use, precise positioning covers the whole mine. It not only solves the problems of approach protection for personnel on the working face and collision between the oncoming vehicles, but also guarantees intelligent production of mining face on the safety front.

CHINA SHENHUA