Automatic vehicle weight measuring method and device based on radio frequency identification tag

The embodiment of the invention provides an automatic vehicle weight measuring method and device based on a radio frequency identification tag. The method mainly comprises the steps that the basic information of a vehicle, the number information of the RFID tag and the corresponding relation between the basic information of the vehicle and the number information of the RFID tag are saved in an automatic weight measuring system, and the RFID tag is arranged on the vehicle; after the vehicle reaches a weighing position, an RFID reader-writer and an antenna at the weighing position read the number information of the RFID tag on the vehicle, and the automatic weight measuring system obtains the basic information of the vehicle according to the number information of the RFID tag; the automatic weight measuring system obtains the weight value of the vehicle automatically and conducts correlation saving on the weight value of the vehicle and the number information of the RFID tag on the vehicle, and then correlation between the weight value and the basic information of the vehicle is realized. According to the method and device, fully-automatic vehicle weight measurement can be achieved, manual intervention is avoided during vehicle weight measurement, labor resources are saved, and vehicle weight measuring efficiency is improved.