Machine-vision-based curve speed limitation calculating method and speeding warning device

A technology of machine vision and warning devices, applied in computing, computer components, instruments, etc., can solve problems such as no consideration, only consideration, accidents, etc.

Active Publication Date: 2017-01-25
山西省交通运输安全应急保障技术中心(有限公司) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the road section with insufficient sight distance, the driver only considers the speed at which the vehicle can pass the road section, but does not consider the unknown emergencies that may occur due to insufficient sight distance. Furthermore, the speed of the vehicle exceeds the speed at which the vehicle can be stopped safely within the range of sight, resulting in an accident
[0003] At present, when the vehicle is on a bad road section such as a curve, only the speed control of the vehicle anti-rollover and anti-skid is considered, such as in the prior art CN 103121447 B Dalian University of Technology, an automatic control of anti-sideskid and rollover on curves The system and method do not take into account that the driver should control the speed of the vehicle within the range of the visual distance to safely stop the vehicle due to the inability to detect sudden situations in time at places with poor visibility

Method used

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  • Machine-vision-based curve speed limitation calculating method and speeding warning device
  • Machine-vision-based curve speed limitation calculating method and speeding warning device
  • Machine-vision-based curve speed limitation calculating method and speeding warning device

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Embodiment Construction

[0025] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0026] Such as image 3 , the present invention claims a machine vision-based curve speeding warning device, which includes:

[0027] The image acquisition module is composed of a camera and an image decoder. The camera is installed on the upper part of the front windshield, and the lens faces the road ahead;

[0028] Embedded single-chip microcomputer, installed near the dashboard of the vehicle, is used to store and process images, identify lane boundary points and calculate the maximum visual distance, and control the LCD display and alarm module at the same time;

[0029] The alarm module is installed near the dashboard of the vehicle and consists of LED lights and horns. After receiving the alarm signal, it controls the flashing of the...

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Abstract

The invention discloses a machine-vision-based curve speed limitation calculating method and speeding warning device; the method comprises the steps of measuring a visual distance of a curve unequal-visual-distance poor section; according to the visual distance, calculating a safety speed that allows a vehicle to stop emergently in the case of emergencies; comparing the safety speed with a current speed, and giving a warning to a driver if the current speed is higher than the safety speed; the method is based on a vehicle device, has no need for assistance from road facilities, and has the advantages that the cost is low, calculation is speed, operating speed is high and the reliability is high, traffic accidents due to the fact that a driver assumes good road conditions ahead and gains an insufficient braking distance are prevented, and support is provided for speed safety control theoretical methods for poor sections.

Description

technical field [0001] The invention relates to the field of automotive assisted driving safety, in particular to a machine vision-based calculation method for speed limit on curves and an overspeed warning device. Background technique [0002] In recent years, the number of automobiles has increased year by year, and road traffic accidents have remained high, causing a large number of casualties and property losses to the society. According to the statistical analysis of accidents, most of the accidents occurred on road sections with poor line-of-sight such as curves, and the main types of accidents were rollover accidents caused by avoiding sharp steering and rear-end collisions caused by insufficient braking distance. The main reason is that the road section with insufficient sight distance, the driver only considers the speed at which the vehicle can pass the road section, but does not consider the unknown emergencies that may occur due to insufficient sight distance. F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/0967G08G1/16G06K9/00
CPCG08G1/0967G08G1/167G06V20/588
Inventor 陶健庞夺峰王文君多文英姜鑫王征陈龙殷传峰
Owner 山西省交通运输安全应急保障技术中心(有限公司)
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