A method for distributing named data in-vehicle network data based on navigation routes

Abstract

The present invention proposes a method for distributing information on a named data vehicle network based on a navigation route. The method applies the concept of a named data network to the vehicle network, and combines vehicle motion tracks to propose a more effective method for distributing information on a vehicle network. It can achieve higher broadcast hit rate with lower overhead. The invention does not need the assistance of any roadside unit, and directly realizes the inter-vehicle communication. A relatively stable message distribution algorithm is designed by using the vehicle's own message broadcast function and combining the vehicle's motion trajectory. At the same time, using the concept of named data network, it breaks through the limitations of the existing Internet-based IP address mechanism, making message distribution more flexible and efficient. Since no roadside unit is used, the message transmission is completely completed by the vehicle, so the cost is very low, and the failure of a single vehicle will not affect the distribution of vehicle network messages, and 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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