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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: 2010-05-12
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
  • 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 figure 1 , the car rear-end warning device of the present embodiment comprises central processing unit 1, electronic injection ECU 4, camera 2 and vehicle speed sensor 3, and central processing unit 1 is connected with the output terminal of camera 2, electric injection ECU 4 and the output terminal of vehicle speed sensor 3 respectively Directly or indirectly (i.e. connected to other components in the middle, such as resistors), the camera 2 is located in front of the vehicle, for example, directly below the midpoint of the edge of the lower frame of the front license plate, so as to face the indicator light behind the first vehicle in front, to take better images. 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 ...

specific Embodiment 2

[0025] Specific embodiment two, please refer to figure 2 , the car rear-end warning device of the present embodiment comprises a central processing unit 1, a brake indicator light 7, a camera 2 and a switch control unit 6, and the output terminal of the central processing unit 1 and the switch control unit 6 of the camera 2 are directly or indirectly (i.e., intermediate Other components, such as resistors) are connected, 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 control of ...

specific Embodiment 3

[0027] Specific embodiment three, please refer to image 3 , the present embodiment is the best embodiment of the present invention, combining Embodiment 1 and Embodiment 2 together, the rear-end collision warning method includes 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 of the ...

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Abstract

The invention provides an early warning device and an early warning method for rear-end collision, comprising a central processing unit, an electric spraying unit and a camera used for filming a taillight of a front auto. An output end of the camera is coupled with the central processing unit. The central processing unit is used to judge that a signal given by the camera is a brake light from thefront auto while giving the first control signal. The electric spaying unit reduces the supply of fuel after receiving the first control signal. The invention adopts image recognition technology, overcoming a factor of reaction of a driver, and automatically arrest speed prior to the reaction of the driver. Breaking of the front and rear autos can be considered as synchronous, so a relatively safespace between the front and rear autos can be kept, thus preventing the rear-end collision.

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 Patents(China)
IPC IPC(8): G05D1/03F02D29/02
Inventor 杨海珊任普宁
Owner BYD CO LTD