Parking Access Control Using License Plate Recognition
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Solution Overview
Problem
Existing vehicle parking facility admission control systems are not user-friendly and flexible, particularly for registered users who need to manage multiple vehicles, as they often require RFID tags that can be lost or forgotten, and license plate-based systems require registration, which may not adapt well to changing vehicle usage.
Innovation Solution
A system that automatically registers a user and their vehicle upon first entry using a license plate recognition method, allowing seamless entry with any vehicle by linking the license plate number to the authorized user, with flexible registration options and misuse protection, using a combination of RFID cards or barcode credentials for authorization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If RFID tags are used for vehicle identification, then entry speed and convenience are improved, but the system requires users to carry and remember to bring the tag, reducing reliability
Solution Approach 1:
The system creates a copy of the authorization by linking the vehicle's license plate number (which is always present on the vehicle) to the authorized user's identity in the database. This eliminates the need for the physical RFID tag while maintaining automated recognition, as the license plate serves as a permanent,不可转移 identifier that cannot be forgotten or left at home.
2Reliability
If license plate recognition is used, then the need to carry RFID tags is eliminated, but the system requires manual registration which reduces ease of operation
Solution Approach 1:
The system performs automatic registration by capturing the license plate number through image recognition and automatically linking it to the authorized user's identity in the database. This eliminates the need for manual form-filling or administrative registration processes. The system serves itself by automatically completing the registration workflow that would otherwise require user intervention.
Solution Approach 2:
The system performs the registration action in advance during the first entry, so that subsequent entries are automatically recognized without requiring any registration steps. The preliminary automatic registration eliminates the need for future manual registration actions.
3Reliability
If manual registration forms are required, then authorization control is improved, but user-friendliness and ease of operation deteriorate
Solution Approach 1:
The system replaces the mechanical process of manual form-filling and administrative registration with an automated optical recognition system. Image processing software captures the license plate and automatically processes the registration data, eliminating the need for physical forms or manual data entry while maintaining secure authorization control through database verification.
4Productivity
If RFID-based systems are used, then automated entry is achieved, but the system lacks flexibility when users drive different vehicles
Solution Approach 1:
The system creates a universal authorization model where the user's identity is linked to multiple license plate numbers in the database. A single user authorization can be associated with multiple vehicles, allowing the user to drive different vehicles while maintaining access to the parking facility. The license plate recognition system universally identifies any vehicle associated with the authorized user.
Data Source
Figure 1
Figure 2
AI summary
The invention relates to an entrance control system (1) for a car park, in which entry is regulated by a barrier (14), comprising an image processing device (4, 6, 8) for determining a character string on a vehicle number plate and a reader (12) for reading a credential (9). The credential (9) is assigned to a user of the vehicle and has a feature identifying the user. A control unit (2) of the entrance control system (1) is coupled for communication purposes to the image processing device (4, 6, 8) and the reader (12) coupled. The control unit (2) determines whether the feature identifying the user is present in a user database (4), and associates the determined character string with the feature identifying the user when the feature identifying the user is present in the user database (4), in order thus to register the number plate of the vehicle as belonging to the user.