After a month of trial use, the personnel precise positioning system of Bu’ertai Coal Mine was officially put into operation recently, and proved to be quite effective.
The ultra-wideband (UWB) technology enables the system to precisely control data transmission error within millisecond level. The portal of the new system is more user-friendly, displaying the real-time trajectory of personnel. In addition, with data analysis tools, managers can deeply analyze the trajectory data and accurately identify high-frequency areas and abnormal routes of personnel activities to detect and eliminate potential safety hazards promptly. Furthermore, the operation process is optimized to achieve centimeter-level positioning accuracy.
During an underground emergency drill in late November, the system allowed rescuers to quickly position the operating workers in the dangerous area, with a positioning error of merely 0.3-0.5 meters, saving valuable time for emergency rescue. The dispatch and command center directed the emergency evacuation of the personnel according to the precise information, and the rescue team quickly located and rescued the trapped personnel, with all people safely evacuated finally.
Li Zheng, head of the mine’s intelligent operation and maintenance team, noted: “The upgraded positioning system has eliminated the issue of unstable data transmission and inaccurate positioning, and helped monitoring personnel to detect and deal with potential safety hazards more quickly and accurately. Our operational safety is further guaranteed”.
