A method for deriving the connectivity model of the Internet of Vehicles with infrastructure in urban scenes

Abstract

A derivation method for connectivity models of Internet of Vehicles with infrastructure in urban scenes. The present invention defines the backbone road network: it is composed of several intersection gateways i1, i2, ..., im, and these intersection gateways are adjacent to a group of roads r1, r2, ..., rn, where n=m‑1. Model the four attributes of the connectivity of the trunk road network by obtaining the driving speed of all vehicles on each road in the trunk road network and the transmission range of the equipped wireless communication device for the Internet of Vehicles and counting the vehicle density on these roads . The present invention aims at the objective problems of low interconnection and intercommunication coupling degree in the urban scene, and differences in application program requirements, etc., and studies the message propagation through the main road network composed of urban roads and intersection gateways to form four types of interconnection and intercommunication in the Internet of Vehicles. Connectivity properties, based on these properties, a connectivity model of the Internet of Vehicles with infrastructure in urban scenes is proposed, which has important theoretical guiding significance for the development of large-scale network applications of the Internet of Vehicles.

Description

technical field [0001] The invention relates to the technical field of Internet of Vehicles. Background technique [0002] The goals and characteristics of the Internet of Vehicles determine that the Internet of Vehicles is a large and complex heterogeneous network system composed of different layered networks. It consists of three parts: ① car body domain, which mainly consists of various sensors and terminal nodes in the car to form a small car body network, which is used to obtain in-car information and real-time information of adjacent vehicles; ② physical space domain, mainly composed of physical Various network components in the environment, including different types of roadside infrastructure networks, vehicle body networks, and mobile communication networks; ③Information space domain, mainly including access network types, network service quality, protocol types, network bandwidth, Terminal capabilities, etc. The uncoordinated operation among the various components...

AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to overcome the deficiencies of the prior art, disclose a connectivity model of the Internet of Vehicles with infrastructure in urban scenes, and aim at the objective problems of low interconnection, intercommunication, coupling, and differences in application requirements in the Internet of Vehicles in urban scenes. , studied the four connectivity properties of the IoV interconnection when the message propagates through the main road network composed of urban roads and intersection gateways, and proposed a connectivity model of the IoV with infrastructure in the urban scene according to these properties. The flow chart is as follows figure 1 As shown, this has important theoretical guiding significance for the development of large-scale network applications of the Internet of Vehicles

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