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Security anti-collision early-warning method based on vehicle driving speed and position information fusion

A technology for vehicle speed and position information, which is applied to the traffic control system, anti-collision system, instruments and other directions of road vehicles. and other problems to achieve the effect of reducing early warning and improving accuracy.

Inactive Publication Date: 2016-10-26
JIANGSU UNIV OF SCI & TECH
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  • Description
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AI Technical Summary

Problems solved by technology

This method can only be used for straight-line driving vehicles, and cannot be used for vehicles with side collisions; at the same time, it does not take into account the driver's reaction time and vehicle braking coordination time

Method used

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  • Security anti-collision early-warning method based on vehicle driving speed and position information fusion
  • Security anti-collision early-warning method based on vehicle driving speed and position information fusion
  • Security anti-collision early-warning method based on vehicle driving speed and position information fusion

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Embodiment Construction

[0026] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings;

[0027] Below in conjunction with accompanying drawing, the present invention will be further described:

[0028] a. Acquisition of vehicle status information

[0029] The vehicle obtains the latitude and longitude, speed and heading angle information of its own vehicle and other vehicles in real time through the on-board equipment. figure 2 The in-vehicle communication system includes the application layer, in-vehicle LAN and in-vehicle equipment. The application layer includes the anti-collision algorithm model and early warning information display; the LAN has the ability to access the Internet; the vehicle-mounted equipment has a high-precision positioning module, a DSRC communication module (DSRC is Dedicated Short Range Communications (dedicated short-range communication technology)) and a network interface. The high-precision positioning modul...

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Abstract

The invention discloses a security anti-collision early-warning method based on vehicle driving speed and position information fusion. A vehicle-mounted device obtains information of longitudes and latitudes, speeds and heading angles of the vehicle and another vehicle in real time; according to a rectangular plane coordinate system of longitude and latitude conversion, vehicle coordinate information can be obtained; and on the basis of vehicle ordinates and heading angles, determination of vehicle straight line collision and side collision can be carried out, so that algorithm processing is carried out respectively. According to a driving speed of a vehicle, different vehicle security collision prevention time is determined; if the vehicle collision occurrence time is less than or equal to security collision prevention time, a risk of vehicle collision exist and the driver can be warned timely; and if the vehicle collision occurrence time is larger than the security collision prevention time, updated vehicle state information is processed again. According to the invention, the method is not limited by vehicle-mounted equipment; the early warning precision is improved effectively; unnecessary early warning is reduced; and the method is suitable for early warning of driven vehicle collision prevention.

Description

technical field [0001] The invention belongs to the field of vehicle anti-collision early warning on traffic roads, and relates to a safety anti-collision early warning method based on fusion of vehicle speed and position information. Background technique [0002] With the rapid development of the economy, the process of urbanization in my country is constantly accelerating. Due to the increase in the number of cities and the expansion of their scale, the number of urban motor vehicles has also increased dramatically. The increase in the number of cars has caused a series of problems such as urban traffic congestion, frequent traffic accidents, and deterioration of the traffic environment. The increase of traffic accidents threatens people's life safety and property loss. How to reduce the number of traffic fatalities and the resulting economic losses has become an important topic. Through the research on vehicle collision avoidance warning, traffic accidents can be effecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/16
CPCG08G1/166
Inventor 刘庆华谢礼猛丁文涛王俊骅方守恩
Owner JIANGSU UNIV OF SCI & TECH
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