Electronic Key Holder Switching for Shared Vehicle Detection
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Solution Overview
Problem
Existing in-vehicle devices that accommodate electronic keys lack sufficient security and convenience, particularly in terms of usability and comprehensibility in shared vehicle usage scenarios.
Innovation Solution
An in-vehicle device with a main body portion and an electronic key accommodating portion that includes a switching unit to detect the accommodation and attachment/detachment states of the electronic key, utilizing a first and second detection unit to ensure reliable detection of the key's presence and attachment status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single detection unit is used to detect both accommodation state and attachment/detachment state, then device complexity is reduced, but detection reliability deteriorates
Solution Approach 1:
The detection system is segmented into two independent detection units: a first detection unit for detecting the accommodation state of the electronic key, and a second detection unit for detecting the attachment/detachment state of the accommodating portion. This segmentation allows each unit to specialize in one detection function, improving overall detection reliability while maintaining clear functional separation in the device architecture.
2Ease of operation
If the electronic key accommodating portion is made detachable for convenience, then ease of operation is improved, but detection accuracy deteriorates due to potential false readings
Solution Approach 1:
A switching unit is introduced as an intermediary component that is activated by the attachment/detachment operation. This switching unit controls the detection states of both the first and second detection units, ensuring that accurate detection readings are obtained only when the accommodating portion is properly attached to the main body portion, thereby preventing false readings while maintaining operational convenience.
3Device complexity
If detection states are not switched according to attachment/detachment operation, then device complexity is reduced, but information accuracy deteriorates
Solution Approach 1:
The detection system employs dynamic state switching through a switching unit that changes the operational states of the detection units based on the attachment/detachment condition. When the accommodating portion is attached, the switching unit enables both detection units to operate; when detached, it disables them or switches to appropriate states, ensuring accurate information is obtained only under proper operating conditions.
Data Source
AI summary
A vehicle-mounted apparatus comprising: a main body portion; and an electronic key accommodating portion that accommodates an electronic key of a vehicle and is attachable to and detachable from the main body portion, wherein the electronic key accommodating portion includes a switching unit that switches detection states of a first detection unit and a second detection unit according to an attachment or detachment operation of the electronic key accommodating portion to or from the main body portion, the first detection unit is provided in the main body portion for detecting an accommodation state of the electronic key in the electronic key accommodating portion, and the second detection unit is provided in the main body portion for detecting an attachment or detachment state of the electronic key accommodating portion with respect to the main body portion.