Anomaly detection device and anomaly detection method

The abnormality detection device addresses the challenge of detecting a frozen screen state by monitoring and comparing screen display data, enabling effective recovery processes.

JP7619472B2Active Publication Date: 2025-01-22NISSAN MOTOR CO LTD
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Patent Information

Application Number
JP2023554120
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-10-19
Publication Date
2025-01-22
Estimated Expiration
2041-10-19

AI Technical Summary

Technical Problem

Conventional navigation-based automatic control devices do not monitor screen displays for failures, making it difficult to detect a frozen state where the screen does not respond to user operations.

Method used

An abnormality detection device that monitors screen display data and determines if it changes in response to user operations, detecting a frozen state by comparing screen display data before and after a predetermined period.

Benefits of technology

Enables the detection of a frozen state in screen displays, allowing for recovery processes to resolve the issue and reduce calculation load on the detection device.

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Abstract

A failure detection device (4) detects a failure of a screen display displayed on a display (1) and includes a screen display data monitoring unit (44) that monitors screen display data displayed by the display (1) and a screen display freeze detection unit (45) that, on the basis of the screen display data and a user operation related to the screen display, determines whether the screen display has transitioned as a result of the user operation. The screen display freeze detection unit (45) determines that the screen display is in a freeze state in which the screen display does not respond to the user operation when the screen display does not transition for a predetermined period after the user operation.
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Citation Information

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