Parking charge system database

The database system is mainly used for license plate recognition results and storage of vehicle images, recording of vehicle entry and exit time, calculation of parking time and charge amount. Its working principle is to establish two databases: the entry database and the departure database. The parking time and the generated parking cost are calculated by proofreading, analysis and logical judgment of the data before and after. When the vehicle completes the payment behavior and leaves the parking lot, the database automatically deletes the written information of the vehicle.

Entry database: license plate number, entry time, vehicle image

Departure database: license plate number, entry time, departure time, parking fee, vehicle image.

1. Reading mode

The owner can enter the parking number and the license plate number on the main control machine to take out the parking timing ticket. When leaving, the ticket will be on the scanner and the parking fee will be calculated. You can also pay by cash and Union Pay card.

2. Card reading mode

The owner can go to the main control unit or the card reader to read the card and start the parking time. When leaving, the card will be read again on the main control unit or the card reader to calculate the parking fee. Payment can be made via a trusted card (city pass, ID card, self-issued card) and e-wallet.

3. Self-service mode

If the owner forgets to read the card on the main control unit or the card reader, the grounding time will automatically start after 2 minutes of geomagnetism. When leaving, the card will be read again on the main control unit or the card reader to calculate the parking fee. Payment can be made by cash, Union Pay card, trusted card (city pass, ID card, self-issued card) and e-wallet.

Parking receipt

After parking the car, the owner can take a parking voucher on the main control machine with parking number and license plate number, parking time, barcode and other information.

Payment receipt and invoice receipt

When the owner picks up the car, the card swiping machine or the main control machine are for paying the fee. The deduction can successfully print the payment voucher or the payment invoice according to the owner's voluntary request.