Abnormality Detection Using Dynamic Reference Information
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Solution Overview
Problem
Existing abnormality detection techniques for computer systems rely on fixed rules, which are inadequate as they fail to account for varying circumstances, leading to inaccurate detection of system abnormalities.
Innovation Solution
An abnormality detection apparatus and method that includes a first detection unit for identifying the start of a predetermined operation, an acquisition unit for obtaining reference information specific to the context, and a second detection unit for detecting abnormalities using this context-specific information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed rule is used as a reference for abnormality detection, then the detection system is simple to implement, but the detection accuracy deteriorates because it cannot adapt to varying operational circumstances
Solution Approach 1:
The patent applies the dynamics principle by making the reference information dynamic rather than fixed. The system automatically acquires and updates reference information based on the current operational state of the terminal, allowing the abnormality detection criteria to adapt to different circumstances such as maintenance operations versus normal operations, thereby improving detection accuracy without requiring manual intervention
Solution Approach 2:
The system implements self-service by automatically acquiring reference information from the terminal itself based on its operational state. The terminal's own operation state serves as the basis for selecting appropriate reference information, eliminating the need for external manual configuration and enabling the system to self-adjust to different operational contexts
2Reliability
If context-specific reference information is acquired and used for abnormality detection, then detection accuracy is improved, but the system complexity increases due to additional detection and acquisition units
Solution Approach 1:
The patent merges the first detection unit that detects operational state with the second detection unit that performs abnormality detection. Both functions are integrated into a unified detection apparatus that shares common resources and processing mechanisms, reducing overall system complexity while maintaining the ability to use context-specific reference information for improved reliability
Data Source
AI summary
An abnormality detection apparatus (2000) detects a start of a predetermined operation in a terminal (10). The abnormality detection apparatus (2000) acquires reference information (30) representing a reference of abnormality detection of the terminal (10) after the predetermined operation is started. After it is detected that the predetermined operation is started, the abnormality detection apparatus (2000) detects abnormality of the terminal (10) by using the acquired reference information (30).