Access Control for Electrical Equipment Usage Logs
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Solution Overview
Problem
Existing access control methods fail to provide proper access control for information related to the usage of electrical equipment when used with intended products, as they do not effectively manage access to the usage history of these products.
Innovation Solution
An access control method that receives log information from electrical equipment, associates it with product information, and controls access based on this association, using tags to identify the intended product and enforce access rules, ensuring only authorized users can access the usage history.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control is implemented for log information of electrical equipment, then information security is improved, but access flexibility deteriorates
Solution Approach 1:
The patent applies local quality by associating different access rights with different product information types. Manufacturers can specify which log information categories their products should have access to, creating localized access control rules rather than blanket restrictions. This allows precise control over what data each product can access while maintaining overall security.
Solution Approach 2:
The access control system is dynamic rather than static. The server dynamically determines access permissions based on the specific product information presented in each access request, comparing it against stored associations between product information and log information. This allows flexibility to grant access when appropriate while maintaining security when inappropriate.
2Measurement precision
If product information is stored and associated with log information, then access control precision is improved, but system complexity increases
Solution Approach 1:
The system performs preliminary action by pre-storing associations between product information and log information in the server before access requests occur. This preparation work is done in advance, so when an access request comes in, the server can quickly compare the presented product information against the pre-stored associations without complex real-time analysis, reducing operational complexity while maintaining precision.
Solution Approach 2:
The patent uses copying by storing product information as identifiable data that can be replicated and compared. Instead of complex verification processes, the system creates copies of product information identifiers (such as product codes or digital signatures) and compares these copies against stored associations, simplifying the access control mechanism while maintaining precision.
Data Source
AI summary
An access control method including: receiving a log information item indicating use history of electrical equipment that is used together with an intended product; receiving product information including information for identifying the intended product; storing the log information item received in the receiving of a log information item and the product information received in the receiving of product information, in association with each other; and controlling whether or not to allow access to the log information item based on the product information associated with the log information item when access to the log information item is attempted.