Abstract: Aiming at the hidden safety problems that identification leakage of cards carried by underground personnel is caused by the excessive movement speed of vehicles and the shielding of vehicle shell and vehicle passenger overload can not be effectively controlled, we design a card reading base station. The electromagnetic compatibility protection is added to the power input to improve the anti-interference ability of the equipment and meet the requirements of electromagnetic compatibility design grade in the underground coal mine. The UHF RFID module is used to identify the information of passengers, to distinguish people in the vehicle or outside the vehicle. The ultra-wideband UWB module adjusts the output transmitting power, conducts direct or indirect ranging with the passengers in the vehicle and the tunnel base station, calculates the number of passengers in the vehicle in real time, avoids the occurrence of leakage identification, and assists to achieve personnel precise positioning of the whole mine coverage.