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Device for preventing faulty operation for using accelerator as brake by mistake based on computer vision

A technology of computer vision and wrong operation, applied in the direction of computer parts, calculation, measurement devices, etc., can solve the problems of inaccurate distinction, poor control effect, wrong driving intention, etc.

Inactive Publication Date: 2011-12-28
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the existing shortcomings of inconsistency between the driving behavior and the driving intention when the accelerator is detected and the brake is misoperated, the present invention provides a vehicle that can efficiently and accurately grasp the driving behavior from the running state of the vehicle and the road environment. The driver's driving intention, effectively preventing the driver's wrong driving intention and the driving behavior of the driver who did not take any preventive measures due to the driver's unawareness of the vehicle driving risk, and the computer vision-based misuse of the accelerator as a brake error operation prevention device

Method used

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  • Device for preventing faulty operation for using accelerator as brake by mistake based on computer vision
  • Device for preventing faulty operation for using accelerator as brake by mistake based on computer vision
  • Device for preventing faulty operation for using accelerator as brake by mistake based on computer vision

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Embodiment 1

[0045] refer to Figure 1 to Figure 6 , a computer vision-based device for preventing misuse of the accelerator as a brake, including a visual sensor, an embedded system, a vehicle speed measurement unit, a vehicle driving angle measurement unit, a distance measurement unit, an audio alarm unit, an accelerator control unit, and a brake control unit and a power supply unit; the vision sensor is fixed on the top right of the driver's seat of the vehicle, and is used to capture video images of the road ahead of the vehicle, as attached figure 2 As shown; the embedded system, the sound alarm unit and the power supply unit are respectively fixed in the shell of the computer vision-based error prevention device such as using the accelerator as a brake, and the embedded system is used to read the driving of the vehicle Speed, vehicle steering wheel angle and video information of the road in front of the vehicle are used to estimate the obstacle distance on the road ahead, and calcul...

Embodiment 2

[0085] refer to Figure 1 to Figure 6 , In the present embodiment, only one detection means in the detection methods such as radar, laser and ultrasonic is adopted for the detection of the obstacle ahead.

Embodiment 3

[0087] refer to Figure 1 to Figure 6 , the coefficient of friction μ in the formula (1) is corrected according to the road conditions in the present embodiment, and the value of the coefficient of friction μ for the gravel road surface is 0.65; the value of the coefficient of friction μ for the road surface in rainy days is 0.7; The friction coefficient μ of the road surface is 0.45, and other structures and working processes of this embodiment are the same as those of Embodiment 1.

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Abstract

The invention relates to a device for preventing faulty operation for using an accelerator as a brake by mistake based on computer vision, which comprises a vision sensor, an embedded system, a vehicle speed measuring unit, a vehicle driving angle measuring unit, a distance measuring unit, a voice alarm unit, an accelerator control unit, a brake control unit and a power supply unit, wherein the embedded system is used for reading the information of driving speed of a vehicle, a vehicle steering wheel angle, a video image of a front road of the vehicle, and the like, estimating a barrier distance on the front road and calculating a driving risk factor and driving risk change tendency according to the barrier distance, the vehicle steering wheel angle and the speed of the vehicle. The invention makes a corresponding driving decision according to the driving risk factor and the driving risk change tendency, controls the voice alarm unit to produce drive warning sound according to the driving decision, controls the accelerator control unit to allow the action effectiveness of stepping the accelerator by a driver and controls the brake control unit to control the automatic brake of thevehicle.

Description

technical field [0001] The invention relates to a vehicle safety driving device, which belongs to the application of an embedded system, computer vision, sensor technology, vehicle brake and accelerator driving device in vehicle safety driving, and is mainly used to prevent drivers from using the accelerator as a brake and other misoperations. Background technique [0002] In solving the problem of the driver using the accelerator as a brake misuse, analyze the driver's state and driving intention from the driving surrounding environment and the current state of the vehicle, and solve the problem of the accelerator as a brake misoperation from the perspective of the relationship between the vehicle, the environment and the driver , to ensure that the vehicle does not cause traffic accidents caused by the driver stepping on the accelerator by mistake. [0003] Computer vision will become the most important part of the environment perception system of intelligent vehicles. Com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/12B60T7/06B60K26/02G06K9/62G01C11/36G01S15/08
Inventor 汤一平姜军田旭园俞立姚明海
Owner ZHEJIANG UNIV OF TECH
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