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Early warning method of highway traffic safety early warning system based on vanet

A driving safety, expressway technology, applied in the direction of collision avoidance system, etc., can solve the problems of not being able to remind other vehicles in time, lack of vehicle information interaction, etc.

Inactive Publication Date: 2015-10-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the research is on bicycles, which lack information interaction between vehicles. When a vehicle is in an emergency, it cannot remind other vehicles to avoid danger in time, which has certain limitations.

Method used

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  • Early warning method of highway traffic safety early warning system based on vanet
  • Early warning method of highway traffic safety early warning system based on vanet
  • Early warning method of highway traffic safety early warning system based on vanet

Examples

Experimental program
Comparison scheme
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specific Embodiment approach 1

[0075] Specific implementation mode one, combination figure 1 with figure 2 In this specific embodiment, a highway safety early warning system based on VANET includes M vehicle-mounted communication units, where M is an integer greater than 1, and wireless communication can be performed between M vehicle-mounted communication units;

[0076] Each vehicle-mounted communication unit includes vehicle main control 1, workshop communication module 2, GPS positioning module 3, Internet communication module 4, power supply module 5, display screen 6, dynamic speed and distance measurement module 8 and human-vehicle interaction module 9;

[0077] The workshop signal input or output terminal of the workshop communication module 2 is connected to the workshop signal output or input terminal of the vehicle master control 1; the GPS signal output terminal of the GPS positioning module 3 is connected to the GPS signal input terminal of the vehicle master control 1; The vehicle main control 1 i...

specific Embodiment approach 2

[0124] Specific embodiment two, the difference between this specific embodiment and the VANET-based highway driving safety early warning system described in specific embodiment one is that it also includes a vehicle-mounted data source 7, and the vehicle-mounted data signal output terminal of the vehicle-mounted data source 7 Connect with the vehicle-mounted data signal input terminal of the vehicle-mounted master control 1.

specific Embodiment approach 3

[0125] Specific Embodiment Three. The difference between this specific embodiment and the VANET-based highway safety early warning system described in specific embodiment 1 is that the on-board main control 1 is an embedded microprocessor.

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Abstract

The invention discloses VANET-based early-warning system and early-warning method for driving safety in an expressway, and relates to an early-warning system and an early-warning method for driving safety in an expressway, for realizing real-time and effective safety early-warning on running vehicles. The invention designs a Vehicle ad-hoc network-based early-warning vehicle-mounted system for driving safety in an expressway. By virtue of the system, the different levels of early-warning prompts of the current driving safety of vehicles can be given according to the weather / road conditions (visibility, road slippery degree and the like), the current running state (real-time position and real-time speed) of a vehicle and the running states of 'neighbour' vehicles in a certain space range around the vehicle. On the basis of VANET, the system enables the vehicles to carry put wireless ad-hoc networking in a certain space range and share in-network vehicle running state information, and automatically generates safety early-warning information for every vehicle in the network, thus improving the driving safety of the vehicles on a road. The system and the method disclosed by the invention are applicable to a driving process in an expressway.

Description

Technical field [0001] The invention relates to an expressway driving safety early warning system and an early warning method. Background technique [0002] The expressway has the characteristics of large traffic volume and high speed. Therefore, if the driving vehicle collides or stops due to road factors, human factors or weather factors, it may cause a major traffic accident and is very likely to cause secondary life. Accidents have caused huge losses to people's lives and property. Highway traffic accidents are divided into rear-end collisions, collisions with fixed objects, rollovers, side collisions, scratches, crashes, and fires. Among them, rear-end collisions, collisions with fixed objects and side collisions are the main forms of accidents. Therefore, research on highway safety warning systems has received increasing attention. Past studies have started with monitoring the driver’s characterization, such as cameras, EEG and other instruments to accurately measure the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/16
Inventor 崔建勋赵蒙安实姚焓东于匡员
Owner HARBIN INST OF TECH