Anomaly Detection Device Selective Log Transmission
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Solution Overview
Problem
Existing anomaly detection systems in vehicles generate a substantial amount of communication data by transmitting all anomaly detection logs, leading to inefficient data management and increased communication burdens.
Innovation Solution
Anomaly detection device that determines the type of anomaly and only transmits logs when a change in anomaly type occurs, reducing unnecessary data transmission through a combination of type determination, change assessment, and selective log transmission mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all anomaly detection logs are transmitted, then complete anomaly information is available, but communication data volume increases substantially
Solution Approach 1:
The patent extracts only the essential information (anomaly type) from complete anomaly detection logs. The type determiner identifies and extracts the anomaly type, and the change determiner extracts only when type changes occur, transmitting only these extracted changes rather than complete logs, thus reducing communication data volume while preserving necessary anomaly information.
Solution Approach 2:
Instead of transmitting complete anomaly detection logs, the system creates a simplified copy containing only the anomaly type information. This copied representation maintains the essential anomaly identification capability while significantly reducing the data volume that needs to be transmitted across the network.
2Loss of information
If all anomaly detection logs are transmitted, then comprehensive anomaly records are maintained, but data storage efficiency decreases
Solution Approach 1:
The system extracts only the anomaly type from complete anomaly detection logs and stores only these extracted type changes. This extraction approach maintains the essential anomaly information needed for security analysis while significantly reducing the storage requirements by eliminating redundant log data.
3Loss of information
If all anomaly detection logs are transmitted, then complete anomaly data is available for analysis, but communication burden increases
Solution Approach 1:
The type determiner and change determiner work together to extract only the essential anomaly type information and transmit only when changes occur. This extraction mechanism maintains complete anomaly type data for security analysis while significantly reducing the communication burden by eliminating redundant transmissions of unchanged anomaly data.
4Speed
If anomaly detection logs are transmitted frequently, then real-time anomaly monitoring is achieved, but system performance decreases due to data overload
Solution Approach 1:
Instead of continuous transmission of all anomaly logs, the system implements periodic action by transmitting data only when anomaly types change. This periodic transmission approach maintains real-time anomaly monitoring capability while improving system performance by reducing the frequency and volume of data transmissions that would otherwise cause overload.
Data Source
AI summary
An anomaly detection device is a device for detecting an anomaly in a mobile body and includes: a type determiner that determines a type of an anomaly detected; a type change determiner that determines whether or not a change has occurred between a type of an anomaly detected last time and a type of an anomaly detected this time; and an anomaly detection log transmitter that transmits an anomaly detection log related to the anomaly detected this time when the change has occurred, and does not transmit the anomaly detection log related to the anomaly detected this time when the change has not occurred.