Collision avoidance system based on detection of obstacles in blind spots of vehicle
US7859432B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Jan 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/9315
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a collision avoidance system based on the detection of obstacles (e.g., other vehicles and obstructive objects) in the blind spots of a vehicle. The collision avoidance system includes: a turn signal lamp detector for detecting an activation of a turn signal lamp of the vehicle; a charge-coupled device (CCD) camera for capturing an image for a road environment, outputting the captured image as road environment data, and measuring a winding or curvature degree of a current road; a steering angle detector for detecting a steering angle of the vehicle and outputting a resulting signal as a steering angle signal; an infrared sensor for transmitting or receiving infrared light to or from an obstacle present in a blind spot of the vehicle, and outputting an obstacle detection signal; a warning device configured to warn the possibility of collision between the obstacle and the vehicle to a driver; and a controller configured to operate the warning device upon detection of the activation of the turn signal lamp by the turn signal lamp detector, followed by activation of the infrared sensor to determine presence of an obstacle in the blind spot, the controll…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.