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Automobile tail-catching prealarming device and method

A technology of rear-end collision warning and automobile, applied in two-dimensional position/channel control, machine/engine, engine control, etc., can solve problems such as rear-end collision accidents, and achieve the effect of avoiding rear-end collisions and avoiding rear-end collision accidents

Active Publication Date: 2008-02-13
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution still depends on the driver's response. If the driver fails to respond in time to the signal of the brake indicator light of the vehicle in front, a rear-end collision may still occur.

Method used

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  • Automobile tail-catching prealarming device and method
  • Automobile tail-catching prealarming device and method

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Experimental program
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specific Embodiment 1

[0023] Specific embodiment one, please refer to Fig. 1, the automobile rear-end warning device of the present embodiment comprises central processing unit 1, electronic injection ECU 4, camera 2 and vehicle speed sensor 3, central processing unit 1 is respectively connected with the output end of camera 2, electronic injection The output terminals of ECU 4 and vehicle speed sensor 3 are connected directly or indirectly (that is, other parts are connected in the middle, such as resistors). The indicator lights at the back of the vehicle are facing to get a better image. The camera preferably adopts a camera with an infrared light source to facilitate shooting at night.

[0024] The camera continuously captures the image in front of the vehicle, and transmits the image to the central processing unit, which analyzes and processes the image. The following methods can be used for image recognition: first, recognize the shape of the brake indicator light, and the brake indication of...

specific Embodiment 2

[0025] Specific embodiment two, referring to Fig. 2, the automobile rear-end warning device of the present embodiment comprises central processing unit 1, brake indicator lamp 7, camera 2 and switch control unit 6, and central processing unit 1 is respectively the output terminal of camera 2 and the switch The control unit 6 is connected directly or indirectly (that is, other components, such as resistors are connected in the middle), and the other end of the switch control unit 6 is coupled to the brake indicator light 7 . The camera 2 is positioned at the front of the car, such as the position directly below the midpoint of the edge of the lower frame of the front license plate, so as to face the indicator light at the back of the first vehicle in front to take a better image. The camera preferably adopts a camera with an infrared light source to facilitate shooting at night. The switch control unit 6 can be a relay 6 or a switch triode, and its control terminal receives the...

specific Embodiment 3

[0027] Specific embodiment three, referring to Fig. 3, present embodiment is the best embodiment of the present invention, and embodiment one and embodiment two are combined together, and rear-end collision early warning method comprises the following steps:

[0028] First, the camera captures the image in front of the vehicle;

[0029] Then the image data is transmitted to the central processing unit for processing and analysis. The analysis and processing method can use the method in Embodiment 1 to judge whether the brake indicator light of the first vehicle in front is on according to the image data, and if so, immediately control the brake indication. The light is on and the speed of the vehicle is reduced. If it is not, it will not be processed and the image will continue to be taken.

[0030] In this embodiment, a brake pedal signal unit 5, a second relay 8 and a third relay 10 are further added, and the central processing unit 1 is directly connected to the output end ...

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Abstract

The invention provides a car rear-end warning device and method, comprising a central processing unit, an electronic injection ECU and a camera for photographing the rear tail lights of vehicles in front, the output end of the camera is coupled to the central processing unit, and the central processing unit uses When it is judged that the signal transmitted by the camera is that the brake light of the vehicle in front is on, the first control signal is output, and the ECU reduces the fuel supply in response to the first control signal. The present invention adopts the image recognition technology, overcomes the driver's reaction factor, and automatically controls to reduce the speed of the vehicle before the driver's reaction. It can be considered that the braking of the front and rear cars is almost synchronous, and the distance between the front and rear cars can maintain a relatively safe distance. , to avoid rear-end collision between the car and the car in front.

Description

【Technical field】 [0001] The invention relates to an automobile safety device, in particular to an automobile rear-end collision warning device and a method thereof. 【Background technique】 [0002] In the whole road traffic accident, automobile rear-end collision accident accounts for more than 30-40% approximately, and the loss and casualty that rear-end collision accident causes account for 60% of total loss again, visible rear-end collision accident is fiercer than a tiger! At present, in order to reduce rear-end collision accidents, the way of the governments of various countries can only be to stipulate in the "traffic regulations" that the front and rear vehicles must keep a longer "safety distance". However, there are only "regulations" without effective supervision and correction methods. In this way, "provisions" become a dead letter. Developed countries including the United States have not been able to solve this "world problem" so far. The root cause of rear-en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/03F02D29/02
Inventor 杨海珊任普宁
Owner BYD CO LTD