Underground garage positioning system based on RFID technique

The invention discloses an underground garage location system which is based on the RFID technology. The location system reads the related information of the reference RFID label and the target RFID label and the intensity of the emitting frequency signal; then the interconnection with a PC machine is realized by a switching machine. The location analyzing module stored in the PC machine changes the received three way information into a message format of the label information at first; then after comprising the differences of the intensity parameter of four neighboring frequency signals, whether or not a vehicle is parked in a parking space of the garage can be judged; and the information is shown in a display of the PC machine for the garage manager to watch the actual situation on the display. The location way of the invention applies the RFID technology; the RFID reader is used to collect the target RFID label on the vehicle and the RSS parameter of the reference RFLD label at the parking space; the neighb