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VANET-based early-warning system and early-warning method for driving safety in expressway

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

Inactive Publication Date: 2014-05-21
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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  • VANET-based early-warning system and early-warning method for driving safety in expressway
  • VANET-based early-warning system and early-warning method for driving safety in expressway
  • VANET-based early-warning system and early-warning method for driving safety in expressway

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specific Embodiment approach 1

[0075] Specific implementation mode 1. Combination figure 1 with figure 2 Illustrate this specific embodiment, the highway traffic safety warning system based on VANET, it comprises M vehicle-mounted communication units, and M is an integer greater than 1; Wireless communication can be carried out between M vehicle-mounted communication units;

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

[0077] The inter-vehicle signal input or output end of the inter-vehicle communication module 2 is connected with the inter-vehicle signal output or input end of the vehicle-mounted main control 1; the GPS signal output end of the GPS positioning module 3 is connected with the GPS signal input end of the veh...

specific Embodiment approach 2

[0124] Specific embodiment two, the difference between this specific embodiment and the VANET-based highway traffic safety 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 end of the vehicle-mounted master control 1.

specific Embodiment approach 3

[0125] Specific Embodiment 3. The difference between this specific embodiment and the VANET-based expressway traffic safety warning system described in specific embodiment 1 is that the vehicle-mounted 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 early warning system and an early warning method for expressway driving safety. Background technique [0002] Expressways have the characteristics of large traffic volume and high driving speed. Therefore, if a vehicle in motion collides or stops suddenly due to road factors, human factors or weather factors, it may cause major traffic accidents, and it is very likely to cause secondary accidents. Accidents cause huge losses to people's lives and property. Expressway traffic accidents are divided into rear-end collisions, collisions with fixed objects, rollovers, side collisions, scratches, crashes and fires, among which rear-end collisions, collisions with fixed objects and side collisions are the main forms of accidents. Therefore, research on early warning systems for highway driving safety has received increasing attention. Previous studies have started from monitoring the driver's representation, such as cameras, elect...

Claims

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Application Information

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Patent Type & Authority Applications(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
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