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Anti-tailgating monitoring system and method

A monitoring system and anti-rear collision technology, which is applied in the direction of railway signal and safety, can solve the problems of low precision, easy misjudgment reliability, short detection distance, etc., and achieve the effect of high detection accuracy, high reliability and long detection distance

Inactive Publication Date: 2013-03-13
周颖平
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] This application provides a monitoring system and method for preventing rear-end collisions, which are used to solve the problems of short detection distance, low precision, easy misjudgment and low reliability of the method for calculating the distance between two vehicles in the prior art

Method used

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  • Anti-tailgating monitoring system and method

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Embodiment Construction

[0025] See figure 1 , figure 1 It is a structural diagram of a monitoring system for preventing rear-end collisions in an embodiment of the present application. The monitoring system includes a transmitter 11, which is used to transmit a radio frequency signal containing the characteristic information of the first vehicle corresponding to the transmitter 11; a receiver 12, which is used to receive a radio frequency echo signal, and the radio frequency echo signal is based on the radio frequency The signal is obtained, and the radio frequency echo signal includes the characteristic information of the second vehicle; the calculator 13 calculates the time delay of the radio frequency signal according to the radio frequency echo signal, and calculates the time delay between the first vehicle and the second vehicle according to the time delay. distance; and, the control system 14, connected to the calculator 13, is used to adjust the speed of the first vehicle from the first speed...

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Abstract

The invention discloses an anti-tailgating monitoring system and method. The system comprises an emitter, a receiver, a calculator and a control system, wherein the emitter is used for emitting a radio-frequency signal containing feature information of a first vehicle corresponding to the emitter; the receiver is used for receiving a radio-frequency echo signal; the radio-frequency echo signal is obtained on the basis of the radio-frequency signal; the radio-frequency echo signal comprises the feature information of a second vehicle; the calculator is used for calculating the delay of the radio-frequency signal according to the radio-frequency echo signal and calculating a distance between the first vehicle and the second vehicle according to the delay; the control system is connected with the calculator and is used for adjusting the speed of the first vehicle from the present speed to a second speed when the distance is less than a preset value; when the first vehicle is on the rear side, the second speed is lower than the present speed; and when the first vehicle is on the front side, the second speed is higher than the present speed.

Description

technical field [0001] The invention relates to the technical field of transportation safety, in particular to a monitoring system and method for preventing rear-end collisions. Background technique [0002] At present, there are more and more various means of transportation, such as automobiles and trains, and the speed of various vehicles is also getting higher and higher. As far as the train is concerned, the speed has been increased six times, and the speed will be further increased in the future, so this The safety requirements for train operation are even higher. [0003] In order to ensure the safety of train operation, there are mainly following two methods in the prior art: [0004] First: The transmitter at the head of the rear train sends out a specific radio frequency signal, which is reflected by the body of the front train to the receiver at the head of the rear train, and the distance between the two vehicles is calculated through the echo delay of the signal...

Claims

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Application Information

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IPC IPC(8): B61L23/34
Inventor 周颖平
Owner 周颖平
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