Vehicle collision warning system based on optical communication

A technology for vehicle collision and communication system, applied in collision avoidance system, transmission system, electromagnetic wave transmission system and other directions, can solve the problem of not providing orientation indication, not having data communication function, etc.
CN102013174AInactive Publication Date: 2011-04-13EAST CHINA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EAST CHINA UNIV OF SCI & TECH
Publication Date
2011-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a vehicle collision warning system based on optical communication, which comprises optical indicators and optical detectors and is used for the safety monitoring and the information interaction among running vehicles. The optical indicators are distributed around or on the top of a vehicle and can transmit modulated optical signals in different directions, wherein the optical signals carry the angle indication information, mounting position information and other information of the vehicle which are corresponding to the optical signals, thereby forming optical antennae. The optical detectors mounted on another vehicle can detect optical pulse signals transmitted by a certain light emitting diode (LED) of the optical indicators and then extract the carried indication angle information, mounting position information and the like; and a processing unit of the optical detector analyzes and processes the information, estimates whether an abnormal running state exists based on the change rate of light indication angle, the change rate of light intensity and the like, and outputs the result to other systems of the vehicle by a controller.
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Description

technical field

[0001] The invention belongs to the technical field of intelligent transportation, and specifically relates to a method and device for measuring the relative running direction of short-distance vehicles by using an optical communication system, including a light indicator with a specific layout with an optical communication function and a light detector with an optical communication function device. Background technique

[0002] In order to improve the safety performance of traffic, in addition to enhancing the electronic system of the body, more and more auxiliary electronic technologies are applied to the vehicle system, such as forward-looking infrared display, ultrasonic reversing radar, reversing camera, etc. In order to more actively detect obstacles in front of the vehicle, more advanced technologies such as automotive radar and laser scanners are gradually being used in vehicles.

[0003] Among many technologies, the vehicle's collision prevention fu...

Claims

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