Automatic vehicle-mounted mobile phone Bluetooth matching device

The utility model provides an automatic vehicle-mounted mobile phone Bluetooth matching device and belongs to the technical field of car communication. The problem that the automatic matching of vehicle-mounted Bluetooth is out of action when the Bluetooth function of a mobile phone is turned off is solved. The device comprises a Bluetooth module for searching and matching surrounding Bluetooth, a microphone, a sound device, mobile phone Bluetooth, a vehicle-mounted controller and a radio frequency identification (RFID) module, wherein the RFID detects whether the mobile phone is located in a car and comprises a plurality of radio frequency (RF) coil and receivers, an RFID-subscriber identity module (SIM) card installed on the Bluetooth mobile phone, an RFID positioning unit and an RFID information reading unit which is used for reading the RFID information of the RFID-SIM card of the Bluetooth mobile phone, the vehicle-mounted controller is connected to the Bluetooth module, the RFID positioning unit and the RFID information reading unit respectively, the vehicle-mounted controller is connected to the microphone and the sound device respectivley, and the RF coil and receivers are communicated with the RFID-SIM card and the RFID positioning unit in a wireless mode respectively. The device positions and detects the mobile phone in the car, and the mobile phone Bluetooth in the car can be searched and matched accurately.