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Method of identifying and/or detecting human workload

A workload, class technology, applied in the areas of driver, dysfunction and/or neglect of vehicles, that addresses the problem of not being able to detect and quantify what type of head movement

Inactive Publication Date: 2013-12-04
VOLVO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this system and method cannot detect and quantify what types of head movements are normal and what types of head movements are in the range of dysfunction

Method used

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  • Method of identifying and/or detecting human workload
  • Method of identifying and/or detecting human workload
  • Method of identifying and/or detecting human workload

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Embodiment Construction

[0027] In the following, a preferred method and system for recognizing drowsiness will first be described.

[0028] The method and system of the present invention are based on the fact that when a person becomes sleepy, the muscles enter a state of relaxation. For example, fatigue and / or alcohol and / or drugs and / or drugs and / or intoxication can cause such drowsiness. By way of background, the state of skeletal muscles is entirely influenced by nerve impulses from the spinal cord. These skeletal muscles are in turn controlled partly by impulses transmitted from the brain and partly by impulses from muscle spindles located within the muscles themselves. The muscle spindle pulses provide the nervous system with a continuous feedback of information from each muscle, giving the state of each muscle at each instant in terms of its length, tension, and how quickly the length or tension changes. Therefore, muscle tone is usually relaxed during sleepiness. Due to the loss of muscle ...

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Abstract

The invention discloses a method of identifying and / or detecting human workload by detecting and estimating the head movements of human, wherein three head rotational components containing forward andbackward swing, right and left swing and rotation and / or the number of at least one of the head rotational components in three different vertical directions and / or the derivative of at least one of the head rotational components to time is used to detect and estimate the head movements of human.

Description

[0001] This application is a divisional application of No. 200380110764.6 (PCT / EP03 / 13480) invention patent application. The filing date of the original application was November 30, 2003, and the title of the invention was "Method and System for Identifying Driver's Dysfunction". technical field [0002] The present invention relates to a method and a system for identifying and / or detecting dysfunction and / or inattention of a person, in particular for a driver of a vehicle, and in particular for those caused by drowsiness, distraction, by detecting and evaluating head movements of the person and / or workload-induced dysfunction and / or neglect. Background technique [0003] According to a study in the United States (Treat, 1979), most traffic accidents - about 90% - are due to driver error. Driver inattention is the leading cause of collisions, accounting for an estimated 25-55% of crashes (according to a National Highway Traffic Safety Administration (NHTSA) study in the CDS...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/11A61B5/18
Inventor 特伦特·维克托彼得·拉松
Owner VOLVO TECH
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