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Data processing device and method, monitoring system, awakening system, and recording medium

A data processing device and data processing technology, applied in diagnostic recording/measurement, medical science, instruments, etc., can solve problems not limited to real vehicle environment

Inactive Publication Date: 2019-11-15
ORMON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, there is a problem that it is difficult to judge drowsiness with high accuracy even if it is attempted to judge drowsiness based on vestibulo-ocular movement in situations where various eye movements are likely to occur or where vestibulo-ocular-movement movement is not easily induced.
In addition, not limited to the actual vehicle environment, the same problem may occur in various real environments such as the operating environment and work environment of equipment, etc.

Method used

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  • Data processing device and method, monitoring system, awakening system, and recording medium
  • Data processing device and method, monitoring system, awakening system, and recording medium
  • Data processing device and method, monitoring system, awakening system, and recording medium

Examples

Experimental program
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Effect test

Deformed example 1

[0302] The control unit 12 of the data processing device 10 need not include image 3 All parts shown. In another embodiment, the control unit 12 may also have a first configuration including at least a calculation unit 12c, a fitness evaluation unit 12d, a giving unit 12e, a selection unit 12f, a first sleepiness calculation unit 12g, and a second sleepiness calculation unit 12i, The second configuration of the wake-up control unit 12m is also provided in this first configuration.

[0303] In addition, the second sleepiness calculation unit 12i includes the saccade calculation unit 12j and the eyelid movement calculation unit 12k, but may include only any one of them. In addition, another eye movement calculation unit, which is effective for calculating sleepiness, may be included.

Deformed example 2

[0305] about Figure 4B The drowsiness calculation processing operation performed by the control unit 12 shown in , may be configured such that, in step S9, it is determined the proportion of the calculation data that is given a degree of fitness higher than the first threshold value among the calculation data for t seconds. Whether it is n% or more.

[0306] The degree of suitability is not limited to multi-valued data indicating the degree of suitability, but may be binary data indicating the presence or absence of suitability or the level of suitability. In this way, when the degree of fitness is binary data, in step S9, it may be determined that, among the calculated data for t seconds, the proportion of calculated data indicating that the degree of fitness has or is high is given. Whether it is n% or more.

Deformed example 3

[0308] about Figure 4B The drowsiness calculation process performed by the control unit 12 shown in , may also be configured such that, in step S10, the calculation data for t seconds stored in the calculation data storage unit 133 is used to assign a value higher than the second threshold value. The calculation data of the suitability calculates the VOR of the driver 3 .

[0309] In another embodiment, it may be configured such that in step S10, the calculated data of a predetermined number of frames from the calculated data of t seconds stored in the calculated data storage unit 133 is used to calculate the driver's 3 VORs. According to this configuration, by narrowing down the calculation data used for VOR calculation to data with high suitability, the calculation amount required for VOR calculation can be reduced, and the VOR of the driver 3 can be calculated efficiently and accurately.

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Abstract

The invention provides a data processing device and method, a monitoring system, an awakening system and a recording medium, which are capable of accurately calculating the sleepiness even in the situation that is not suitable for calculating the sleepiness based on the vestibulo-ocular reflex movement (VOR). The data processing device that performs data processing of monitoring a person, the dataprocessing device includes: a calculator configured to calculate pupil movement and head movement of the person; an evaluator configured to evaluate a suitability degree of a situation in calculatingthe VOR; a provision unit configured to provide the suitability degree evaluated by the evaluator to data calculated by the calculator; a selector configured to select a first technique of calculating the sleepiness based on the VOR of the person or a second technique different from the first technique based on the suitability degree provided to the data; a first sleepiness calculator configuredto calculate the sleepiness based on the first technique when the selector selects the first technique; and a second sleepiness calculator configured to calculate the sleepiness based on the second technique when the selector selects the second technique.

Description

technical field [0001] The invention relates to a data processing device, a monitoring system, a wake-up system, a data processing method and a data processing program. Background technique [0002] Patent Document 1 below discloses a drowsiness sign detection device which aims at detecting signs of drowsiness before a driver of a vehicle or the like recognizes drowsiness by using the vestibulo-oculomotor reflex caused by head movement. [0003] The drowsiness sign detection device described in Patent Document 1 includes: a head movement detection unit for detecting head movement; an eye movement detection unit for detecting eye movement; an ideal eye movement angular velocity calculation unit based on the head movement detection unit. The head movement data is used to calculate the ideal eyeball angular velocity; the eyeball rotational angular velocity calculation unit is used to calculate the eyeball rotational angular velocity based on the eye movement data detected by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/18
CPCA61B5/18A61B5/4809A61B5/163A61B5/0077G08B21/06A61B5/1114A61B5/7405A61B5/742A61B5/7455A61B5/746
Inventor 竹本亚由美木下航一向井仁志长江成典竹内倭
Owner ORMON CORP
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