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A detection method, reminder system and control method for standard wearing of seat belts

A technology of control method and detection method, applied in the field of vehicle safety, can solve the problems of inability to identify the tightness or high and low position of wearing, irregular detection and reminder, neglect of seat belt wearing, etc., to achieve good real-time and adaptive ability, convenience Identify and address, improve the effects of missing features

Active Publication Date: 2018-12-07
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method and device for seat belt identification through machine vision is somewhat progressive, but only the first and second situations are identified through the above method and device, that is, it can only identify whether it has been worn and whether it is a three-point seat belt. Wear it correctly, but cannot identify the third situation above, that is, cannot identify whether the tightness of the wearing or whether the high or low position is appropriate
Moreover, most of the existing machine vision recognition methods have low accuracy
If the occupant's sitting posture changes, the seat position is adjusted, and the body shape of the occupant changes greatly, it may cause false or missed reminders; When approaching, it is also prone to false reminders or missed reminders
Furthermore, the structure of some existing machine vision recognition systems is relatively complicated.
[0006] It can be seen that the existing safety belt wearing reminder device mainly solves the detection and reminder of whether the seat belt has been worn correctly, but generally ignores the detection and reminder of whether the seat belt has been worn but is not worn properly.

Method used

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  • A detection method, reminder system and control method for standard wearing of seat belts
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  • A detection method, reminder system and control method for standard wearing of seat belts

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Embodiment Construction

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] The invention discloses a method for detecting whether the front row occupants of a vehicle have worn safety belts in accordance with regulations. To wear seat belts in a standardized manner requires that the degree of tightness of the seat belts worn is appropriate and the height of the seat belts worn is appropriate. When the seat belt is in a slack state, the ideal occupant restraint protection effect cannot be achieved; when the seat belt is worn too high or too low, it is easy to cause injury to the neck of the person or fall off from the shoulder and lose the occupant restraint protection effect. So both situations need to be avoided. The detection method of safety belt standardization wearing of the present invention can comprise following two kinds for this reason:

[0054] A safety belt tightness standard wearing det...

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Abstract

The invention provides a detection method for standard wearing of a safety belt, a reminding system for standard wearing of the safety belt and a control method for the reminding system. The detection method is conducted on the basis of the safety belt with marks and a camera, the machine vision and digital picture processing technique is used for obtaining center coordinates of the marks, and the marks are divided into the shoulder strap marks and the waistband marks; and center coordinate point sets of the two types of marks are subjected to line segment fitting, the tightness degree of the safety belt can be judged through the dispersion degree of each type of marks relative to the two sides of a corresponding fitting line, the wearing height condition of the safety belt can be detected through the position of an intersection point of a shoulder strap fitting straight line and a passenger shoulder contour line, and therefore whether the safety belt is worn in a standard manner or not is detected. The method is good in instantaneity and self-adaptive capacity and is still good in detection accuracy when the conditions that the sitting posture of a front-row passenger is changed, the position of a seat is adjusted, and the height and the figure are greatly changed happen. Based on the detection method, the invention further discloses the reminding system for standard wearing of the safety belt and the control method for the reminding system.

Description

technical field [0001] The present invention relates to the technical field of vehicle safety, and more specifically, to a detection method, a reminder system and a control method for whether the front row occupants of the vehicle are wearing safety belts. Background technique [0002] Seat belts are known as one of the great inventions of vehicle safety technology. When used in conjunction with airbags, they can greatly reduce the fatality and injury rates of vehicle occupants when traffic occurs. When a vehicle collides with an accident, there are four situations as follows: the first, if the front passenger (in the present invention refers specifically to the driver and passenger seat passenger) does not wear a safety belt, the airbag will not only fail to protect it, but will even Further harm the occupants; Second, if the front seat occupants wear seat belts but wear them incorrectly, that is, the correct wearing is a three-point wearing, such as Figure 5 shown, the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R22/48
CPCB60R22/48
Inventor 钟铭恩黄伟黄波黄杰鸿陈龙
Owner XIAMEN UNIV OF TECH
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