Vehicle Unit PIN Code Management via Driver Card Authentication
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Solution Overview
Problem
The handling of PIN and PUC codes in Vehicle Units is burdensome for manufacturers due to issues like misplaced, forgotten, or incorrectly entered codes, which requires extensive customer support and complicates the addition of new functions, while existing solutions do not provide a secure and efficient method for retrieving or changing these codes.
Innovation Solution
A Vehicle Unit with a display and port that allows authorized user data devices to insert and authenticate, displaying the PIN or PUC codes for retrieval or change, and blocking unauthorized access through consecutive incorrect attempts, thereby reducing manufacturer burden and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless Bluetooth communication is implemented for data transfer, then convenience and continuous data feed are improved, but security risk increases due to potential unauthorized access
Solution Approach 1:
The patent implements preliminary authentication actions before allowing data transfer. The external device must first establish Bluetooth connectivity, then undergo PIN code verification, and only after successful authentication can data transfer commence. This preliminary security check prevents unauthorized access while maintaining convenient wireless operation.
2Reliability
If PIN code authentication is enforced for every pairing, then security is improved, but user burden increases due to code management complexity
Solution Approach 1:
The patent enables users to self-manage PIN codes without manufacturer intervention. Users can retrieve forgotten PIN codes by inserting their driver card into the VU, which displays the associated PIN code. Users can also change PIN codes through the interface. This self-service capability reduces the burden on manufacturers while maintaining security.
Solution Approach 2:
The driver card acts as an intermediary that stores reference information (PIN codes) linking the user to their VU. When a user forgets their PIN code, inserting the driver card into the VU allows the system to retrieve and display the correct PIN code through the interface, facilitating code recovery without manufacturer involvement.
3Reliability
If physical connection port is used for data offloading, then security is improved through physical access control, but ease of operation deteriorates due to panel removal and reinstallation requirements
Solution Approach 1:
The patent replaces the mechanical connection port system with a wireless Bluetooth communication system. Instead of requiring physical cable connections and panel removal, users can wirelessly pair devices and transfer data. The security function is maintained through software-based PIN code authentication rather than physical access control, eliminating the operational burden of panel manipulation.
Data Source
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Figure 3
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AI summary
An arrangement for managing PIN codes in a Vehicle Unit (1; 32) comprising a display (3) and a port (5, 5') adapted to receive a user data device, wherein a PIN code is associated with the Vehicle Unit (1; 32), the Vehicle Unit (1; 32) being arranged to communicate wirelessly with an external device (33) to transfer data recorded by the Vehicle Unit (1; 32) to the external device (33) upon provision of the PIN code by the external device (33), wherein the Vehicle Unit (1; 32) is arranged to display the PIN code when an authorised user data device is inserted into the port and authenticated by the Vehicle Unit (1; 32).