Named data vehicle-mounted network data distribution method based on navigation route

Abstract

The invention provides a named data vehicle-mounted network data distribution method based on a navigation route. According to the method, through applying a concept of a named data network to a vehicle-mounted network and combing with a vehicle movement locus, a more effective vehicle-mounted network message distribution method is provided so that a higher broadcast hit rate can be achieved with lower expenditure. The method provided by the invention does not need the assistance of any road side unit and directly realizes the inter-vehicle communication. By utilizing a vehicle own message broadcasting function and combing with the vehicle movement locus, a relatively stable message distribution algorithm is designed. And meanwhile, by utilizing the concept of the named data network, the restriction of the existing internet based on an IP address mechanism is broken through and the message distribution is more flexible and efficient. Because no road side unit is used and the message transmission is completely finished by a vehicle, the cost is very low; and the breakdown of the single vehicle does not affect the distribution of a vehicle-mounted network message, so the disaster tolerance is high.

Description

technical field [0001] The invention relates to the field of vehicular networks, and more specifically, to a navigation route-based naming data vehicular network data distribution method. Background technique [0002] In-vehicle network refers to the electronic network system implemented on the car. Its purpose is to realize fast and stable communication between cars, so as to help car owners obtain useful information, choose the optimal route, and make the vehicle run more safely and smoothly. At present, there are more and more private vehicles, the communication volume is increasing, and the network load is getting higher and higher, which puts higher requirements on the vehicle network. Message distribution is a very important link in the vehicle network, which directly affects the security and efficiency of the vehicle network. At present, there are many message distribution algorithms used in vehicular networks, but they do not effectively use the regular movement tra...

AI Technical Summary

Problems solved by technology

This method first needs to ensure that adjacent roadside units are within the communication range of each other, so it is necessary to build denser roadside units on the roadside, which is costly

Secondly, because the information of the vehicle needs to be transmitted to the roadside unit first, and then further transmitted by the roadside unit, it will increase the delay of message transmission

Moreover, once the roadside unit fails, the message transmission system of the vehicle network may be paralyzed, and the disaster tolerance is poor

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