On May 16, the KJ1461J Coal Mine Underground Personnel Precise Positioning System independently researched and developed by Nextday Technology, after tests and evaluations by relevant institutions, was found to meet the Safety Technical Requirements for Coal Mine Underground Personnel Positioning System (Trial) and "Coal Mine Underground Personnel" by the Safety Standard Center. Positioning System Safety Sign Inspection Scheme (Trial)" and other documents, and obtained the Safety Sign Product Certificate of the Precise Positioning System for Coal Mine Underground Personnel (KJ1461J).

The next day technology KJ1461J coal mine underground personnel precise positioning system, a new generation of coal mine personnel precise positioning system based on UWB precise positioning technology research and development. The system consists of main and backup servers, monitoring host, underground positioning base station/fusion sub-station, personnel positioning terminal, mine casting and intrinsically safe DC regulated power supply, iris attendance machine, intrinsically safe information miner's lamp and platform software.

Next Day Technology KJ1461J Coal Mine Underground Personnel Precise Positioning System, based on UWB precise positioning technology, can realize ranging and direction judgment with a single base station, and the static positioning accuracy is not more than 0.3 meters. Dynamic monitoring of downhole targets, combined with the system GIS two-dimensional plane map or three-dimensional visual map to present the real-time position and trajectory playback of underground personnel.

The system has personnel/vehicle precise positioning, personnel/vehicle entry and exit attendance, real-time and historical track viewing, distress alarm, emergency evacuation, overtime alarm, personnel limit alarm, shift plan management, vehicle speeding alarm, human-vehicle anti-collision warning, various types of Statistical reports, etc. Combined with traffic light equipment and wireless communication equipment, it can also expand the intelligent control of underground traffic lights and the intelligent dispatching function of underground vehicles.