Today, we will introduce a device that integrates positioning system, clock-in system, emergency rescue and other functions. Let's learn about it together. When personnel enter the underground work and clock in, this device can realize unique detection. The system can detect normal work and abnormal clock-in; when working underground, the ground system can monitor the position of personnel in real time, and can detect whether the area is too far, the restricted area is intruded, the detention time is exceeded, the vehicle is speeding, etc., to truly realize the safety management of the operation; when the underground personnel feel unwell during the operation, they can send out an emergency distress signal through the emergency button, and the ground can immediately carry out emergency dispatch and rescue work through the software system.