Seatbelt detection using computer vision
US-10953850-B1 · Mar 23, 2021 · US
Alert device
US11447095B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11447095-B2 |
| Application number | US-201916721249-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2019 |
| Priority date | Dec 25, 2018 |
| Publication date | Sep 20, 2022 |
| Grant date | Sep 20, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An alert device alerts a driver sitting on a driver's seat in a vehicle by winding a seat belt on the driver's seat with a retractor. The alert device includes a seat position information acquisition unit configured to acquire seat position information relating to a position of the driver's seat, a height estimation unit configured to calculate art estimated height that is an estimated value of the driver's height based on the seat position information, a winding strength setting unit configured to set a winding strength that is a strength for winding the seat belt with the retractor based on the estimated height, and a retractor control unit configured to operate the retractor to wind the seat belt with the winding strength.
First claim
Opening claim text (preview).
What is claimed is: 1. An alert device that alerts a driver sitting on a driver's seat in a vehicle by winding a seat belt on the driver's seat with a retractor, the device comprising: a seat position information acquisition unit configured to acquire seat position information relating to a position of the driver's seat; a height estimation unit configured to calculate an estimated height that is an estimated value of the driver's height based on the seat position information; a winding strength setting unit configured to set a winding strength that is a strength for winding the seat belt with the retractor based on the estimated height; and a retractor control unit configured to operate the retractor to wind the seat belt with the winding strength. 2. The alert device according to claim 1 , comprising: a steering position information acquisition unit configured to acquire steering position information relating to a position of a steering wheel of the vehicle, wherein the height estimation unit is configured to calculate the estimated height further based on the steering position information. 3. The alert device according to claim 1 , wherein the winding strength setting unit is configured to set the winding strength further based on the seat position information, and wherein the winding strength setting unit is configured to set the winding strength as a smaller value in a case where the estimated height is equal to or taller than a first threshold value compared to a case where the estimated height is shorter than the first threshold value if the position of the driver's seat is within a predetermined same range of position. 4. The alert device according to claim 2 , wherein the winding strength setting unit is configured to set the winding strength further based on the seat position information, and wherein the winding strength setting unit is configured to set the winding strength as a smaller value in a case where the estimated height is equal to or taller than a first threshold value compared to a case where the estimated height is shorter than the first threshold value if the position of the driver's seat is within a predetermined same range of position. 5. An alert device that alerts a driver sitting on a driver's seat in a vehicle by winding a seat belt on the driver's seat with a retractor the device comprising: a camera configured to image the driver sitting on the driver's seat; a height estimation unit configured to calculate an estimated height that is an estimated value of the driver's height based on an image captured by the camera; a winding strength setting unit configured to set a winding strength that is a strength for winding the seat belt with the retractor based on the estimated height; and a retractor control unit configured to operate the retractor to wind the seat belt with the winding strength.
Assignees
Inventors
Classifications
Displaying or indicating arrangements thereof · CPC title
Sensing means arrangements therefor · CPC title
Belt retractors, e.g. reels (anchoring devices {, e.g. guide loops} , with means to tension the belt in an emergency B60R22/195) · CPC title
- B60R22/48Primary
Control systems, alarms, or interlock systems, for the correct application of the belt or harness · CPC title
for sensing belt anchor position, belt orientation, or the like · CPC title
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Frequently asked questions
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- What does patent US11447095B2 cover?
- An alert device alerts a driver sitting on a driver's seat in a vehicle by winding a seat belt on the driver's seat with a retractor. The alert device includes a seat position information acquisition unit configured to acquire seat position information relating to a position of the driver's seat, a height estimation unit configured to calculate art estimated height that is an estimated value of…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd, Kk Tokairika Denki Seisakusho
- What technology area does this patent fall under?
- Primary CPC classification B60R22/48. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 20 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).