System for vehicle-mounted RFID information data relay transmission

The invention discloses a system for vehicle-mounted RFID information data relay transmission, which comprises a vehicle-mounted receiving end, a vehicle-mounted relay end, and a vehicle-mounted transmitting end, wherein the vehicle-mounted receiving end is used for receiving signal data transmitted by surrounding vehicle-mounted transmitting ends or signal data transmitted by road-side transmitting ends; the vehicle-mounted relay end transmits the signal data received by the vehicle-mounted receiving end to surrounding other vehicle-mounted receiving ends and road-side receiving ends in a covering mode, or carries out amplification processing on the signal data received by the vehicle-mounted receiving end and then transmits the signal data to the surrounding other vehicle-mounted receiving ends and road-side receiving ends in a covering mode; and the vehicle-mounted transmitting end transmits the vehicle driving state parameters to the surrounding other vehicle-mounted receiving ends and the vehicle-mounted relay ends in a covering mode or transmits the parameters to the road-side receiving ends in a covering mode. Through building a relay system between vehicles, the problem that the metal vehicle body blocks RFID signals can be overcome, effective reading of the driving state parameters between the vehicles can be ensured, and the purposes of intelligent early warning and driving vehicle safety control can be realized.