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Driver alertness detection method, device and system

A technology for detection systems and drivers, applied to driver input parameters, stereo systems, collision avoidance systems, etc., can solve problems such as functional incompatibility

Active Publication Date: 2021-10-22
TOBII TECH AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, these technologies usually take some time to detect driver drowsiness, or they are not compatible with some other functions of the vehicle

Method used

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  • Driver alertness detection method, device and system
  • Driver alertness detection method, device and system
  • Driver alertness detection method, device and system

Examples

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Embodiment Construction

[0045] Figure 1A and Figure 1B The driving situation of the vehicle and the concomitant gaze points 21 to 27 of the driver's eyes associated with this driving situation are shown. This example will use seven gaze points, but other numbers of gaze points can be used to recognize the gaze movement of the driver's eyes, such as at least 3 gaze points (preferably 5 gaze points, more preferably 10 gaze points) can be used. ) for gaze movement recognition. In general, the more gaze points used to determine gaze movement, the more accurate the driver alertness identification will be.

[0046] Figure 1A A front view looking out from the vehicle is shown, depicting a road 50 on which the vehicle is traveling, and a tree 51 beside a sidewalk 52 of the road 50 . Where the driver of the vehicle is alert, the driver will tend to focus his gaze on objects outside the vehicle. In this example, the driver will attempt to follow the tree 51 while passing the tree until the vehicle has pa...

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Abstract

The invention is related to a method (10) for driver alertness detection. The method comprises the steps of determining (11) a vanishing point (A; VP) of a vehicle in motion; determining (12) over time, by an eye tracking device, a set of gaze points of the driver of the vehicle; determining (13) a gaze movement from the set of gaze points; and identifying (14) alertness of the driver, based on a direction of the gaze movement relative to the vanishing point being outward. Further, the invention is related to an eye tracking device (300) for driver alertness detection, an alertness detection system, a computer program, and a computer-readable medium.

Description

technical field [0001] The present invention relates to driver alertness detection. More specifically, the present invention relates to driver alertness detection using eye tracking devices. Background technique [0002] Today, driver drowsiness detection is an important safety feature for vehicles to avoid accidents. [0003] Several techniques exist today for driver drowsiness detection, such as driving pattern monitoring, vehicle position monitoring in lane, or driver's eyes or face monitoring. [0004] However, these technologies usually take some time to detect driver drowsiness, or they are not compatible with some other functions of the vehicle. For example, monitoring the driver through driving patterns will only work if the driver is actively driving the vehicle rather than an automated lane-keeping system. Alternatively, vehicle positioning only works when the driver is actively driving the vehicle and not when the automated lane-keeping system is driving the ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/08
CPCB60W40/08B60W2040/0827B60W2540/225B60W2540/229G06V20/597G06V40/18G08B21/06B60K28/06G06F3/01G08G1/16H04N13/128B60W50/16B60W2050/143B60W2050/146G06F3/013G06V40/19
Inventor 安德鲁·拉特克利夫
Owner TOBII TECH AB
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