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System and method for prewarning lane deviation

A technology of lane departure warning and lane line, applied in the field of lane departure warning system, to achieve the effect of good real-time and robustness

Inactive Publication Date: 2012-01-04
STEELMATE CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

However, the existing system can not meet the requirements of these aspects well, the present invention proposes a system with better real-time and robustness

Method used

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  • System and method for prewarning lane deviation
  • System and method for prewarning lane deviation
  • System and method for prewarning lane deviation

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Embodiment Construction

[0034] see Figure 1-3 The present invention proposes a lane departure warning system, which is mainly used to prevent a running vehicle from deviating from a lane.

[0035] The camera unit 1 can be placed at the front of the vehicle body, such as the windshield of the car or the dashboard of the vehicle, and is used for recording images of road conditions in front of the vehicle body. The camera unit 1 may include a camera 11 and a video conversion chip 12 .

[0036] The lane line identification unit 2 , connected to the camera unit 1 , receives the road condition signal, and performs Hough transform on the signal to identify the lane line 10 . In order to improve the speed of signal processing, when detecting the lane line 10, it can be assumed that the lane line 10 is a straight line model, and the characteristics such as the width of the lane line and the gray value of the lane line being larger than the gray value of the road surface can be fully utilized to effectively ...

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Abstract

The invention relates to a system and a method for prewarning lane deviation. The system comprises a pickup unit, a lane line identification unit, a deviation detection unit, and a prewarning unit which are electrically connected, wherein the pickup unit is used for receiving and transmitting a road condition signal; the lane line identification unit is connected with the pickup unit, receives the road condition signal and performs Hough conversion on the signals to identify the lane line; the deviation detection unit is connected with the lane line identification unit and calculates the distance between the identified lane line and a vehicle body, and sends a prewarning command when the distance is greater than a preset threshold value; and the prewarning unit is connected with the deviation detection unit, receives the prewarning command and sends the corresponding prewarning signal. The method comprises the following steps of: calibrating the pickup unit, setting an effective area, performing edge detection, finding the lane line to judge whether the lane line is deviated and sending the prewarning signal.

Description

【Technical field】 [0001] The invention relates to a lane departure warning system. 【technical background】 [0002] At present, lane departure accidents and car rear-end collisions caused by drivers' negligence, fatigue, drowsiness or lack of concentration account for about 60%-70% of the entire road traffic accidents, and about 70% of the fatalities. According to estimates by the US Federal Highway Administration, the use of systems that can detect the lateral position of the vehicle while it is running and the distance of the vehicle in front of it while the vehicle is running will greatly reduce the occurrence of these traffic accidents. The research of collision system has attracted great attention from various countries. [0003] There are several methods of lane departure system based on machine vision at home and abroad: feature-based recognition method, model-based recognition method, method based on vision and other sensor fusion, etc. The feature-based recognition...

Claims

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Application Information

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IPC IPC(8): B60W50/08B60W40/02B60Q9/00
Inventor 李植滔
Owner STEELMATE CO LTD
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