Shared Vehicle Control Device for Relationship-Based Position Privacy
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Solution Overview
Problem
Conventional techniques for protecting user privacy in shared vehicles do not adequately consider personal relationships between users, leading to inconvenience when users who know each other are unable to accurately determine the boarding or alighting positions of others.
Innovation Solution
A control device that identifies groups of users with predetermined personal relationships and adjusts display information on their terminal devices based on privacy protection requirements, providing accurate vehicle position to group members while protecting privacy for non-group members with dummy positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If privacy protection is applied to all users regardless of personal relationships, then privacy of users is protected, but convenience for users who know each other is deteriorated
Solution Approach 1:
The patent segments users into different groups based on personal relationships. Users are classified into groups such as family members, friends, or colleagues who have predetermined relationships with each other. This segmentation allows the system to apply different privacy protection levels to different user groups, resolving the contradiction between universal privacy protection and convenience for acquainted users.
Solution Approach 2:
The patent applies local quality by providing differentiated privacy protection based on user relationships. For users within the same personal relationship group, accurate position information is provided. For users from different groups, privacy protection is applied. This localized differentiation of information quality resolves the contradiction by tailoring the system behavior to specific user contexts rather than applying uniform treatment.
2Ease of operation
If accurate position information is provided to all users, then convenience for users is improved, but privacy protection for users is deteriorated
Solution Approach 1:
The system segments users into personal relationship groups and applies selective information disclosure. Users within the same group receive accurate position information for convenience, while users from different groups receive privacy-protected information. This segmentation resolves the contradiction by limiting accurate information access to appropriate user circles.
Solution Approach 2:
The control device acts as an intermediary between position information and users. It receives position information from the shared vehicle, processes it according to user relationship groups, and selectively transmits appropriate information to different users. This intermediary function resolves the contradiction by mediating between the need for accurate information and the need for privacy protection.
3Object-affected harmful factors
If privacy protection is applied based on boarding sequence, then privacy of first boarder is protected, but accuracy of position information for acquainted users is deteriorated
Solution Approach 1:
The patent segments users into personal relationship groups rather than treating all users uniformly based on boarding sequence. Users are classified according to their relationships (family, friends, colleagues), and this classification determines information disclosure. This resolves the contradiction by replacing sequence-based treatment with relationship-based treatment, allowing accurate position information to be provided to acquainted users regardless of boarding order.
Data Source
AI summary
The control device includes an information processing device and a communication device. The information processing device extracts a group of users from the plurality of users based on passenger information of the plurality of users, the group of users being a group of users whose relationship with each other is a predetermined personal relationship, transmits to information terminal devices carried by the users belonging to the group, via the communication device, first display information indicating a current position of the shared vehicle, and transmits, in a case where a protection target user for whom a predetermined privacy protection requirement is satisfied is included in the group, second display information that is processed to protect privacy of the protection target user, to an information terminal device carried by a user not belonging to the group, via the communication device.