Vehicle Smart Card Authentication System
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Solution Overview
Problem
Existing vehicle remote control systems face issues with power depletion and lack of replacement options for remote control devices, leading to operational difficulties and security concerns when the device is lost or stolen.
Innovation Solution
A vehicle system utilizing a smart card that can control vehicle functions, including door and power source operation, with a controller generating and transmitting signals to an external server for authorization, and a sensing unit for biometric authentication, ensuring secure and reliable access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a remote control device is used for vehicle control, then convenience is improved, but reliability deteriorates when the device battery is discharged or the device fails
Solution Approach 1:
The system provides multiple control methods (remote control device, smart card, mobile device) that can interchangeably control vehicle functions. When one method fails or is unavailable, others can be used to maintain control reliability while preserving ease of operation.
Solution Approach 2:
The system changes the authentication parameter from battery-powered wireless communication (remote control) to contactless card-based authentication (smart card). This parameter change eliminates battery dependency while maintaining convenience, as the smart card uses passive authentication through the vehicle's existing authentication module.
2Ease of operation
If a remote control device is used for vehicle control, then ease of operation is improved, but security deteriorates when the device is lost or stolen
Solution Approach 1:
The system offers multiple authentication methods including smart card and mobile device options. When a remote control device is lost, users can immediately switch to alternative methods, maintaining ease of operation while reducing security risk through diversified authentication pathways.
Solution Approach 2:
The system creates multiple authentication credentials (smart card, mobile device token) that replicate the authentication function of the remote control device. This allows users to have backup authentication methods that provide the same access convenience without the security vulnerability of a single lost device.
3Reliability
If smart card authentication is implemented, then reliability is improved by providing backup control method, but device complexity increases
Solution Approach 1:
The authentication system automatically manages multiple credential types (remote control, smart card, mobile device) without requiring user intervention to switch between them. The controller automatically recognizes and processes authentication from any registered device, maintaining reliability while minimizing the perceived complexity for users.
Solution Approach 2:
The vehicle's existing authentication module serves as an intermediary that handles all authentication methods through a unified interface. This intermediary component manages the complexity internally while presenting a simple, consistent user experience, allowing reliability improvement without apparent device complexity increase.
4Adaptability or versatility
If multiple authentication methods are supported, then adaptability is improved, but loss of information increases due to multiple credential management
Solution Approach 1:
The system provides versatile authentication options (remote control, smart card, mobile device) that can be registered and managed through a unified process. This universality allows the system to adapt to different user needs and scenarios while the centralized management approach prevents information loss by handling all credentials through a single interface.
Solution Approach 2:
The system provides feedback to users about the status and recognition of different authentication methods. This feedback mechanism helps users understand which credentials are active and recognized, reducing the risk of information loss by making the credential management state transparent and manageable.
Data Source
AI summary
A vehicle includes a controller generating a first signal; and a communicator transmitting the first signal to an external server, and receiving a second signal from a smart card storing the second signal, the second signal being generated based on the first signal. The controller authorizes the smart card to control the vehicle based on the first signal and the second signal.