Vehicle lane change auxiliary device and auxiliary judgment method thereof
A technology of lane changing and auxiliary devices, applied in the directions of measuring devices, vehicle parts, transportation and packaging, etc., can solve the problems such as longitudinal relative distance, longitudinal relative speed, high price of radar sensors, unsuitable for large-scale promotion and use, etc. Achieve simple design, high reliability, and intuitive results
Inactive Publication Date: 2012-05-30
CHANGAN UNIV
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Problems solved by technology
Using the above method can increase the driver’s observation range of the opposite rear vehicle during the lane change process, but it does not solve the problem that it is not easy to judge the longitudinal relative distance and longitudinal relative speed when observing the lateral rear vehicle through the rearview mirror
[0004] At present, there is a method of installing radar on the rear bumper of the vehicle to monitor the side rear vehicle on high-end cars. This method can provide assistance for the driver's lane change process, but the price of the radar sensor is expensive, usually at 50,000 RMB. The above are not suitable for large-scale promotion
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[0030] refer to figure 1 , figure 2 , in the auxiliary device for vehicle lane change, the ARM9 processor 1 is installed under the instrument panel in the vehicle. In the image acquisition device, the present embodiment adopts the left camera 2 and the right camera 3 . Left camera 2 adopts bolt to be fixed on the left rearview mirror of ego vehicle, and camera lens is installed towards the area where left rear vehicle 5 is located. Right side camera 3 adopts bolt to be fixed on the right side rearview mirror of ego vehicle, and camera lens is installed towards right side rear vehicle 6 place area. Red and green two LED lights 4 are installed in the area that the driver on the left side of the instrument panel is easy to notice. The shapes of the left rear vehicle 5 and the right rear vehicle 6 in the images collected by the camera are approximately rectangular.
[0031] The ARM9 processor 1 collects the speed signal of the inherent vehicle speed sensor of the own vehicle ...
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The invention relates to the field of driving safety of motor vehicles, and discloses a vehicle lane change auxiliary device and an auxiliary judgment method thereof. The vehicle lane change auxiliary device comprises two cameras, a green signal lamp for indicating safety, a red signal lamp for indicating unsafety, and an image processor, wherein the image processor is electrically connected withvideo lines of the two cameras respectively through a USB interface, and electrically connected with the green signal lamp, the red signal lamp, a speed signal line of the vehicle, a left steering lamp opening signal line and a right steering lamp opening signal line through an I / O interface. The auxiliary judgment method comprises the following steps: acquiring road images by using the cameras, computing the longitudinal relative distance, longitudinal relative speed and lateral distance of the self vehicle and the vehicle at the rear lateral side, and comprehensively judging the lane changesafety of the vehicle.
Description
technical field [0001] The invention relates to the field of motor vehicle driving safety, in particular to a vehicle lane change assisting device and an assisting judging method thereof. Background technique [0002] The lane-changing behavior of car drivers is closely related to road traffic safety. Statistics show that a large number of traffic accidents have been caused by incorrect lane-changing behavior, which has brought huge losses to the safety of people's lives and properties. When changing lanes, the driver usually uses the left and right rearview mirrors and the interior rearview mirror to observe the vehicle behind him, and judge the lateral relative distance, longitudinal relative distance, and longitudinal relative speed between the vehicle behind him and his own vehicle, etc. parameter. Compared with the vehicle in front, it is much more difficult for the driver to judge the longitudinal relative distance and longitudinal relative speed of the rear vehicle t...
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IPC IPC(8): B60R11/00B60R11/04G06T7/00G06T1/00G01C11/00G01C21/26
Inventor 郭应时彭金栓詹盛付锐袁伟王畅张琼李山虎
Owner CHANGAN UNIV