1. The system administrator sends the RF card to the driver. The RF card is recorded on the RF card, and the driver can attach the card to the front windshield.

2. When the vehicle is several meters away from the weighing platform, the card reader detects the RF card information on the vehicle and transmits it to the background through the serial port server, which automatically records the vehicle information.

3. When judging that there is no vehicle weighing on the weighing platform, the background system sends control instructions to the controller to control the opening of the inlet railing machine to allow the vehicle to pass through and open the weighing platform;

4. The relay controller detects the two infrared positioning sensors before and after, which is not blocked, indicating that the vehicle is parked in the effective weighing area of the weighbridge, and the relay controller actively reports the status to the background.

5. After the vehicle stops, the background system sends instructions to the serial port server to read the loadometer data, and saves the returned weight value.

6. After weighing, the background system sends control instructions to the relay control panel to lift the exit railing machine and drive the car out of the weighing platform;

7. A pound sheet printer is placed at the exit. The background sends the command to print the list to the serial port server, and the driver can leave after tearing off the printed pound sheet;