Fatigue driving monitoring, reminding and early-warning method and system based on computer vision
US-11858419-B2 · Jan 2, 2024 · US
Driver drowsiness detection
US2015251663A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015251663-A1 |
| Application number | US-201414197534-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 5, 2014 |
| Priority date | Mar 5, 2014 |
| Publication date | Sep 10, 2015 |
| Grant date | — |
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Abstract
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Data is collected related to a yaw-rate of a vehicle during a period of time. Based in part on the yaw-rate data, an actual trajectory and an ideal trajectory for the vehicle in the period of time are computed. A deviation of a yaw-rate associated with the actual trajectory is determined from a yaw-rate associated with the ideal trajectory. A variance of the deviation is calculated. An indication is provided of a dangerous driving condition if the variance exceeds a predetermined variance threshold.
First claim
Opening claim text (preview).
1 . A system, comprising a computer in a vehicle, the computer comprising a processor and a memory, wherein the computer is configured to: collect data related to a yaw-rate of the vehicle during a period of time; compute, based in part on the yaw-rate data, an actual trajectory and an ideal trajectory for the vehicle in the period of time; determine a deviation of a yaw-rate associated with the actual trajectory from a yaw-rate associated with the ideal trajectory; calculate a variance o…
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Classifications
- G08B21/06Primary
Physics · mapped topic
Operations & Transport · mapped topic
- B60W40/114Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US2015251663A1 cover?
- Data is collected related to a yaw-rate of a vehicle during a period of time. Based in part on the yaw-rate data, an actual trajectory and an ideal trajectory for the vehicle in the period of time are computed. A deviation of a yaw-rate associated with the actual trajectory is determined from a yaw-rate associated with the ideal trajectory. A variance of the deviation is calculated. An indicati…
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification G08B21/06. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Sep 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).