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Mechanism and system for transmitting vehicle emergency message based on DSRC

An emergency information and emergency message technology, applied in the field of intelligent transportation system, can solve the problems of high maintenance cost, difficult roadside infrastructure erection, hindering the promotion of inter-vehicle communication technology, etc., so as to reduce traffic accidents and enhance safety.

Inactive Publication Date: 2009-01-21
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, roadside infrastructure is difficult to erect and maintenance costs are high, hindering the promotion of vehicle-to-vehicle communication technology

Method used

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  • Mechanism and system for transmitting vehicle emergency message based on DSRC
  • Mechanism and system for transmitting vehicle emergency message based on DSRC
  • Mechanism and system for transmitting vehicle emergency message based on DSRC

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0027] In ITS, the network formed by inter-vehicle self-organization is responsible for the communication of safety information and data of the local vehicle network. The invention adopts the vehicle network framework based on DSRC. No matter what kind of information is to be transmitted in the vehicle network, the transmission of safety information must be guaranteed first. Therefore, the use of multi-channel technology has become inevitable for the DSRC system, and the industry has reached a consensus on this. The frequency band assigned by the United States Communications Commission (FCC) for DSRC communication is located in the 5.9GHz frequency band, which consists of seven non-overlapping channels with a bandwidth of 10MHz, and two channels can also be used in combination to expand the bandwidth. In order to meet the communication require...

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PUM

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Abstract

The invention relates to a vehicle urgent information sending mechanism and a system based on a DSRC, when a vehicle encounters a unusual condition during driving, a urgent information is automatically produced, the urgent information is sent in preference to other information. Vehicles which receive the urgent information determine whether the urgent information is transmitted at once according to respective retransmission distance threshold. The vehicle urgent information sending mechanism and the system guarantee emergency message to be rapidly and steadily sent after a vehicle has an accident. Corresponding retransmission distance thresholds are determined according to different existing environment, network spending is reduced, and the urgent information is further guaranteed to be rapidly sent simultaneously. The whole system of the invention substantially comprises a data vehicle positioning module, a data acquisition module, a memory, a processor and a data sending and receiving module.

Description

technical field [0001] The present invention relates to the field of intelligent transportation system (Intelligent Transportation System, ITS), in particular to a vehicle emergency information transmission system based on dedicated short-range communication (Dedicated Short Range Communication, DSRC). Background technique [0002] In recent years, with the rapid development of the automobile industry and the advancement of wireless network communication technology, it is urgent to increase the degree of high-tech application in the vehicle to improve vehicle safety and driver comfort. According to the statistics of General Motors Corporation, in the North American market alone, in 2005, the R&D funds for the automobile industry were 17 billion U.S. dollars, which was the first in all industries in that year (the pharmaceutical industry was 16 billion U.S. dollars, the software industry was 15 billion U.S. dollars, and the semiconductor industry was 13 billion U.S. dollars. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00G08G1/16
Inventor 刘富强徐尚志王新红钱业青王平李志鹏刘凯杜珊单联海高智伟舒文杰
Owner TONGJI UNIV
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