Personal Navigation Device Position Sharing Access Control
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Solution Overview
Problem
Current personal navigation devices (PNDs) lack a method to share real-time position and route information securely with different classes of users, failing to provide appropriate access levels and protecting user privacy.
Innovation Solution
A method for sharing position information between PNDs involves receiving a request from a peer device, determining its class, filtering and sending appropriate position information based on predefined access rights, allowing users to customize sharing levels through user-defined or preset classes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If position information is shared with all peer PNDs, then information accessibility is improved, but user privacy is compromised
Solution Approach 1:
The patent applies local quality by providing different levels of position information to different classes of peer PNDs. Instead of uniform information sharing, the system categorizes peers into classes (e.g., friends, family, colleagues) and selectively filters position information based on each class's access rights, thereby protecting privacy while maintaining accessibility where appropriate.
Solution Approach 2:
The system changes the parameter of information granularity by filtering position information according to peer class. The same position data is transformed into different levels of detail or completeness based on the receiving peer's classification, allowing the owner to control what aspects of position information are shared with each group.
2Object-affected harmful factors
If a class-based access control system is implemented, then user privacy protection is improved, but system complexity increases
Solution Approach 1:
The patent segments peer PNDs into distinct classes with different access rights to position information. This segmentation allows the system to manage privacy controls in an organized manner, where each class has predefined permissions, reducing the overall complexity compared to managing individual permissions for each peer.
Solution Approach 2:
The class-based access control system serves multiple functions: it protects user privacy, manages information sharing policies, and simplifies peer management. By making the access control mechanism universal across different peer types, the system handles diverse sharing scenarios through a single framework, offsetting the initial complexity setup.
3Adaptability or versatility
If real-time position information is made available to multiple devices, then social networking capability is improved, but security risks increase
Solution Approach 1:
The system applies local quality by tailoring the level of position information shared with each peer class, enabling real-time sharing with trusted contacts while maintaining security through selective disclosure. This allows social networking functionality to flourish among authorized peers without exposing all users to security risks.
Solution Approach 2:
The class-based access control system acts as an intermediary between position information and peer PNDs. It mediates the sharing process by filtering and regulating what information reaches each peer, thereby enabling real-time social networking capabilities while maintaining security through the intermediate filtering layer.
Data Source
AI summary
A method of sharing position information of a personal navigation device (PND) with a peer PND includes the PND receiving a request from the peer PND to share the position information with the peer PND, determining a class of the peer PND, the PND filtering out a piece of the position information from the PND thereof according to the class of the peer PND to generate a filtered position information, and the PND sending the filtered position information to the peer PND.