Car Share Device Key Function Invalidation for Security
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Solution Overview
Problem
Car sharing systems face security challenges as vehicles can be stolen when left in an enabled operation state, necessitating improved security measures against unauthorized use.
Innovation Solution
A car sharing system with a car share device that verifies an electronic key ID through wireless communication with a mobile terminal, allowing secure actuation of on-board devices and automatically invalidating the key function when certain conditions are met to prevent unauthorized use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle operation is enabled during reserved time, then the ease of operation is improved, but the security against unauthorized use deteriorates
Solution Approach 1:
The key function unit dynamically changes its state between valid and invalid based on timing conditions and communication status. The system transitions from a static enabled state to a dynamic state that automatically adjusts security levels based on whether the mobile terminal is communicating with the car share device, resolving the contradiction between ease of operation and security
Solution Approach 2:
The system implements feedback through wireless communication between the mobile terminal and car share device. The key function unit continuously monitors communication status and adjusts the valid/invalid state accordingly - when communication is lost, the system feedbacks by invalidating the key function, thereby maintaining security while allowing easy operation during authorized periods
2Ease of operation
If the key function remains valid after reserved time, then the ease of operation is improved, but the harmful factors increase due to theft risk
Solution Approach 1:
The key function invalidating unit performs preliminary action by automatically invalidating the key function before theft can occur. The system is configured to switch from valid to invalid state at predetermined timing (after reserved time expires), proactively preventing unauthorized use rather than reacting to theft attempts
Solution Approach 2:
The key function operates periodically with valid states during reserved times and invalid states after expiration. This periodic activation and deactivation creates security cycles that allow easy operation during authorized periods while automatically preventing theft risk during unauthorized periods
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances vehicle security by ensuring the key function is only valid during reserved times and automatically deactivates when conditions such as communication interruption or elapsed time are met, preventing unauthorized operation.
Implementation Method 1
The car share device is configured to authenticate the code information through wireless communication with the mobile terminal
Data Source
AI summary
A car sharing system includes a car share device installed in a vehicle. The car share device includes a key function unit configured to verify an electronic key ID used by an electronic key system of the vehicle. The car sharing system further includes a key function invalidating unit that invalidates the key function unit when a condition is satisfied for switching the key function unit from a valid state to an invalid state.