The next day, the underground personnel positioning system and wireless communication system were successfully applied in Chongqing Longqiao Coal Mine, which was highly recognized by the leaders and experts of Chongqing Municipal Safety Supervision Bureau.

On the morning of July 2, Director Ou of the Equipment Division of Chongqing Coal Supervision Bureau visited Longqiao Coal Mine, inspected the operation of the system, and personally experienced it. Seen on the computer screen in the dispatch room, the underground electronic map clearly shows the distribution of the underground personnel at that time, and the accompanying personnel told them that the positioning system the next day is different from the traditional RFID system, it truly achieves accurate positioning, and provides It is the coordinates of Xi'an (absolute geographic location), which can quickly lock the position of personnel in the accident rescue, and play a huge role. The demonstration was carried out on the spot, and the leaders were very satisfied with it. The visiting leaders also used the wireless communication system the next day to call the underground miners' mobile phones. They praised the quality of the calls and the leaders asked them very seriously. When they learned that the personnel were positioned and the mobile phone communicated through the base station, they immediately thought of it. What to do if the base station cable is broken, the escorts told them that the system supports both wired and wireless working modes. In this case, it will automatically switch to the wireless mode, which gave the leaders a "reassurance". After the visit, Director Ou said that the system should be vigorously promoted in Chongqing to benefit more coal mines.