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Abnormality detection device and abnormality detection method

An anomaly detection and normal state technology, applied in reasoning methods, diagnostic recording/measurement, pulse rate/heart rate measurement, etc., to achieve the effect of improving the accuracy of discrimination

Active Publication Date: 2022-03-01
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the drivable state detection device of Patent Document 1 does not determine the drivable state for the posture that has been learned.

Method used

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  • Abnormality detection device and abnormality detection method
  • Abnormality detection device and abnormality detection method
  • Abnormality detection device and abnormality detection method

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0025] figure 1 It is a figure which shows the structure of the abnormality detection apparatus 10 of Embodiment 1. In Embodiment 1, description will be made assuming that the abnormality detection device 10 is mounted on a vehicle and detects an abnormal state of the driver of the vehicle.

[0026] Abnormality detection device 10 has learning database 1 , behavior pattern database 2 , acquisition unit 3 , first candidate determination unit 4 , second candidate determination unit 5 , reset determination unit 6 , determination unit 7 , and update unit 8 . Furthermore, an abnormality detection device 10 is connected to a sensor 11 and a vehicle device 12 .

[0027] The sensor 11 generates sensor information indicating the state of the driver of the vehicle, and outputs it to the abnormality detection device 10 . The sensor 11 detects, for example, the position of the driver's face or eyes, and outputs sensor information indicating the position of the driver's face or eyes to t...

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Abstract

A first candidate determination unit (4) determines whether the acquired sensor information is within a normal range. The second candidate determination (5) determines whether or not there is content matching the acquired combination of sensor information and device information in the learning database (1) storing combinations of sensor information and device information in a normal state. A reset determination unit (6) determines whether or not there is content matching the acquired sensor information or device information in the behavior pattern database (2) storing sensor information or device information in a normal state. When the first candidate judging section (4) judges that it is not within the normal range, if the second candidate judging section (5) judges that it exists, the determining section (7) determines the normal state, and if the second candidate judging section (5 ) and the reset judging part (6) judges that it does not exist, then the determining part (7) determines the abnormal state. When the first candidate determination unit (4) determines that it is not within the normal range, if the second candidate determination unit (5) determines that it does not exist and the reset determination unit (6) determines that it exists, the update unit (8) will A combination of acquired sensor information and device information is registered in a learning database (1).

Description

technical field [0001] The present invention relates to an abnormality detection device for detecting occurrence of an abnormal state. Background technique [0002] Devices that detect occurrence of an abnormal state and issue an alarm are known. Such a device is configured to detect the occurrence of an abnormal state when a person suddenly loses consciousness or when a suspicious person enters. As a specific example of such a device, a driver monitoring system (hereinafter referred to as "DMS") is mentioned, for example. The DMS senses the state of the driver to prevent traffic accidents caused by the driver's physical condition, etc., and has been rapidly developed in recent years. Regarding the DMS, there are high expectations for functions such as detecting the occurrence of an abnormal state in which the driver loses consciousness due to sudden illness or drowsiness, and making it impossible to drive, and outputting an alarm or safely stopping the vehicle by automati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/16
CPCG08G1/16A61B5/18A61B5/021A61B5/024A61B5/6893A61B5/7267A61B5/1116G06N20/00G06N5/04
Inventor 田口进也
Owner MITSUBISHI ELECTRIC CORP