Car Sharing IC Card Authentication System
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Solution Overview
Problem
The existing car sharing systems require the installation of a key box and start key within the vehicle, increasing manufacturing costs.
Innovation Solution
A car sharing system that uses an IC card carried by users, an in-vehicle apparatus with a card reading portion and switch control portion, and a management apparatus at a reservation center for wireless communication, eliminating the need for a key box and start key by enabling check-in and check-out processes through IC card authentication and power source control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a key box and start key are installed within the vehicle for conventional car sharing access control, then vehicle security and access management are improved, but manufacturing cost increases
Solution Approach 1:
The patent extracts the start key function from the vehicle's ignition system and replaces it with an electronic control mechanism. The physical key box and start key are removed, and instead, the vehicle power source switch is controlled electronically through IC card authentication by the in-vehicle apparatus, achieving security without the physical key components
Solution Approach 2:
The patent replaces the mechanical key box and physical start key system with an electronic control system. The in-vehicle apparatus uses IC card reading and electronic signal processing to control the power source switch, substituting mechanical access control with electronic authentication and control mechanisms
2Ease of operation
If a key box is installed for start key storage and control, then access control functionality is improved, but device complexity increases
Solution Approach 1:
The patent merges the key box storage function, key delivery mechanism, and ignition control into a single integrated electronic control system. The in-vehicle apparatus combines IC card reading, authentication processing, and power source switch control into one unified device, eliminating the need for separate key box and start key components
Solution Approach 2:
The in-vehicle apparatus serves multiple functions: it reads IC cards for authentication, manages vehicle power source control, and provides access control functionality. This multi-functional device replaces the specialized key box and start key system, reducing overall system complexity while maintaining operational capabilities
Data Source
AI summary
A car sharing system includes: an IC card carried by a user and including an identification ID of the user; an in-vehicle apparatus that is mounted on a vehicle, and includes a card reading portion reading the IC card and a switch control portion performing an on-off control of a vehicle power source switch that allows traveling of a vehicle; and a management apparatus that is disposed in a reservation management center, wirelessly communicates with the in-vehicle apparatus, manages an operation status of the vehicle, and further manages reservation information. The in-vehicle apparatus reads the IC card by the card reading portion and, based on authentication of an the identification ID by collation between the identification ID, which is read, and the reservation information, executes a check-in process of the vehicle and turns on the vehicle power source switch.