Access Control Apparatus Session Management Load Distribution
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Solution Overview
Problem
Conventional access control systems face high loads on servers and databases due to increased user terminals and connections, leading to infrastructure augmentation challenges and reliability issues.
Innovation Solution
A method where multiple access control apparatuses store session information for user terminals, with each apparatus updating and referencing session data bidirectionally, using identifiers to distribute load and maintain redundancy, allowing flexible handling of increased access and failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If session management is performed by a single server, then the system structure is simple, but the load on the server becomes large and reliability decreases
Solution Approach 1:
The patent divides session management into two independent parts: session information storage (in database) and session management operations (in access control apparatus). This segmentation allows the system to distribute load across multiple access control apparatuses while maintaining a centralized database, thereby improving reliability without significantly increasing system complexity.
2Reliability
If session management is performed by multiple servers, then reliability is improved, but the load on the database increases and system complexity increases
Solution Approach 1:
The patent extracts the session information storage function from the access control apparatus and places it in a dedicated database. This extraction allows multiple access control apparatuses to share the same database, distributing the management load while avoiding the need for each apparatus to maintain its own session data, thus limiting the increase in system complexity.
3Productivity
If infrastructure is augmented to handle increased access, then system capacity is improved, but the load on the system increases and cost increases
Solution Approach 1:
The patent implements dynamic load distribution where multiple access control apparatuses can independently manage sessions and the system can flexibly allocate management tasks based on current load conditions. This dynamic approach allows the system to handle increased access without requiring proportional infrastructure augmentation, as existing resources can be optimized through flexible distribution.
Data Source
AI summary
When an access control apparatus 1 receives an update request for session information of a user terminal 3, the access control apparatus having received the update request identifies multiple access control apparatuses storing therein the session information of the user terminal 3 on the basis of an identifier of the user terminal. Further, the access control apparatus 1 having received the update request sends a new update request for the session information of the user terminal 3 to each of the multiple identified access control apparatuses. Each of the access control apparatuses having received the new update request updates a session-data storage part of the access control apparatus having received the new update request in association with an update time.