Dynamic Sensor Sharing Control via Policy Matching
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Solution Overview
Problem
Existing sensor sharing systems fail to dynamically and seamlessly manage sensor sharing, particularly when sensors or users are in motion, as they do not consider user-side policies and lack real-time control mechanisms.
Innovation Solution
A method and apparatus for dynamic sensor sharing control that involves recording sensor use permissions and requests, matching authorization policies, and updating lists of available sensors in real-time, using a management server with a request policy database, authorization policy database, and access management unit to ensure secure and flexible access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a management system compares sensor endpoints and authorization policies statically, then security control is maintained, but the system cannot dynamically adapt when sensors or users are moving
Solution Approach 1:
The system transitions from static policy comparison to dynamic policy matching. The management server continuously monitors sensor and user terminal positions, and automatically re-matches authorization policies with request policies when positional changes occur, enabling the system to adapt to moving sensors and users while maintaining security control.
Solution Approach 2:
The system implements a feedback mechanism where the management server receives position information from sensor terminals and user terminals, compares it with stored position data, and triggers policy re-matching when changes are detected. This closed-loop feedback ensures continuous secure access control while adapting to dynamic conditions.
2Ease of operation
If the system continuously updates sensor sharing information in real-time, then seamless access is achieved, but system complexity increases
Solution Approach 1:
The management server automatically performs policy matching and sensor list updates without requiring manual intervention. When position changes are detected, the system self-triggers the policy re-matching process and automatically notifies affected user terminals, reducing operational complexity while maintaining seamless access.
Solution Approach 2:
The system pre-stores authorization policies and position information in databases before dynamic changes occur. This preliminary preparation allows the management server to quickly perform policy matching and generate updated sensor lists without complex real-time calculations, simplifying the control process while enabling real-time updates.
3Reliability
If the system stores detailed authorization policies for multiple sensors, then comprehensive access control is maintained, but data storage requirements increase
Solution Approach 1:
The system extracts only the essential matching criteria from complete authorization policies and stores these key matching conditions in the database. When policy matching is needed, the management server retrieves and compares only these extracted key elements rather than storing and processing entire policy documents, reducing storage requirements while maintaining access control accuracy.
Data Source
AI summary
A mechanism is provided for sensor sharing control dynamically. One or more sensor use permissions are received from one or more sensor provider terminals. For each sensor use permission, a sensor use permission is recorded in an authorization policy thereby forming a set of authorization policies. A use request is recorded for sensor use request information received from a sensor user terminal in a request policy. A search is performed for any authorization policy in the set of authorization policies that matches the request policy. Responsive to identifying the authorization policy that matches the request policy, a list of sensors included in the sensor use permissions of an authorization policy that matches the request policy is created. The list of sensors is transmitted to the sensor user terminal, where the search is performed again dynamically when the request policy or one of the set of authorization policies is changed.