Vehicle speed guiding method and system based on short-distance wireless communication

Abstract

The invention provides a vehicle speed guiding method based on short-distance wireless communication. The method comprises the steps of: 1, obtaining traffic lamp information, information of a vehicle itself, and driver driving information, wherein the traffic lamp information includes the current phase of traffic signal lamps, a phase residual time Tg and the current position information of the traffic signal lamps; and the information of the vehicle itself includes the position information and the operation state of the vehicle itself; 2, when the obtained current phase of the traffic signal lamps is green and the phase residual time Tg is no more than n seconds, judging whether queued vehicles are before the vehicle itself, if yes ,stopping the process, and if not, entering a step 3; 3, calculating an estimated time ti for the vehicle itself arriving a parking line; and 4, determining vehicle speed guiding information according to the time ti. The invention further provides a vehicle speed guiding system based on the short-distance wireless communication, and the vehicle speed guiding system is capable of effectively assisting and suggesting a driver to drive at a suggested vehicle speed, so that the potential collision danger is eliminated, and the safety accidents are avoided.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to a vehicle speed guidance method and system based on short-range wireless communication. Background technique [0002] With the increasing development of the automobile industry, automobiles have become an indispensable means of transportation for people's daily travel. Against the background of increasing car ownership year by year, the loss of life and property caused by road traffic accidents has attracted more and more attention from the society. At the same time, the construction of road infrastructure is relatively lagging behind and people's driving behavior needs to be improved. According to relevant statistics, road traffic accidents remain high, of which rear-end collisions account for about 75%, because traffic accidents and casualties caused by speeding account for a large proportion of all types of traffic accidents. The types of accidents caused by sp...

AI Technical Summary

Problems solved by technology

The real problem is how to link the vehicles with these devices when driving at the intersection to provide the best speed advice for the vehicle, improve the efficiency of vehicles at the intersection, and avoid congestion.

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