Safety early warning method during running of vehicles on freeway and system

A vehicle driving and expressway technology, applied in the field of intelligent transportation, can solve the problems of unavailable expressway traffic management and difficult promotion, so as to reduce the incidence of traffic accidents and improve the level of traffic safety

Active Publication Date: 2016-03-16
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Relevant research focuses on how to install equipment to detect the following distance on vehicles to provide early warning through on-board equipment. However,...

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  • Safety early warning method during running of vehicles on freeway and system
  • Safety early warning method during running of vehicles on freeway and system
  • Safety early warning method during running of vehicles on freeway and system

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030]In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] Any process or method descriptions in flowcharts or otherwise...

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Abstract

The invention provides a safety early warning method during running of vehicles on the freeway and a system. The method comprises steps of detecting the running speed of a basic vehicle and the running speed of the back vehicle via a radar speed detection device installed over a lane, wherein the basic vehicle and the back vehicle are on the same lane; detecting vehicle distance between the basic vehicle and the back vehicle via a high-definition video installed over the lane, obtaining image information and determining license plate information according to the high-definition camera; determining the safe vehicle distance threshold between the basic vehicle and the back vehicle; judging whether the vehicle distance is smaller than the safe vehicle distance threshold or not; and if the vehicle distance is smaller than the safe vehicle distance threshold, displaying first early warning information and the license plate information by use of a variable information plate installed over the lane. According to the invention, it can be achieved that following distance of vehicles can be detected, whether one vehicle is very close to another vehicle can be judged, and distance too-close early warnings can be given to follower drivers; traffic accident rate is reduced; and traffic safety level is increased.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a safety warning method and system for vehicles running on expressways. Background technique [0002] With the continuous increase of expressway mileage, the traffic safety situation of expressways is also relatively severe. In recent years, traffic accidents on expressways have accounted for a large proportion of all road traffic accidents and are showing an upward trend. At the same time, due to the high speed of vehicles on expressways, the severity of injuries in traffic accidents is often relatively large. According to the analysis of the causes of expressway traffic accidents, most of them are traffic accidents in which the following car is too close to stop and the rear car cannot stop safely when the front car brakes. Due to the restrictions, there are no good technical management methods to deal with the dangerous situation of following the car too cl...

Claims

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Application Information

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IPC IPC(8): G08G1/16
CPCG08G1/166
Inventor 李瑞敏
Owner TSINGHUA UNIV
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