Vehicle ad hoc network road connectivity real-time repair mechanism method based on unmanned aerial vehicle nodes

Abstract

The invention discloses a vehicle ad hoc network road connectivity real-time repair mechanism method based on unmanned aerial vehicle nodes, and relates to the technical field of Internet of Vehiclesand ad hoc networks. The method mainly comprises: obtaining data such as the real-time position and the free flow speed of a current road vehicle based on an unmanned aerial vehicle; calculating the position of the vehicle at each moment in the next period according to the obtained information, and predicting the road multi-hop network communication condition between two intersections according tothe positions; and if the regional network on the road is disconnected in the future period, enabling the unmanned aerial vehicle to calculate an optimal periodic movement strategy according to the current condition to perform bridging repair. According to the mechanism method, only a single unmanned aerial vehicle needs to be configured on a single road to collect vehicle information by means ofa vehicle ad hoc network, calculate the future motion trail of the vehicle to predict the position of the network disconnection area; the optimal real-time moving strategy is calculated in combination the current position, direction and speed of the unmanned aerial vehicle, the possible disconnection area in the future period is repaired to the maximum extent, and the mechanism method provides stable and effective network connectivity support for road vehicle communication when the vehicle flow is small, namely the number of vehicle nodes is small.

Description

technical field [0001] The invention relates to the technical field of the Internet of Vehicles, in particular to a real-time repair mechanism method for vehicle ad hoc network road connectivity based on UAV nodes. Background technique [0002] The goal of the Internet of Vehicles (IoV) is to realize the connection and communication of multiple vehicles, multiple people, multiple objects and multiple networks, and provide a controllable, operable and safe wide-area network covering the whole city. Its specific applications include Safety-related (automatic driving, accident avoidance), information broadcasting (real-time traffic information), social entertainment, etc. Each vehicle node in the Internet of Vehicles is equipped with a transceiver device that supports relevant network standards (such as DSRC in the United States, LTE-V in China, etc.). Vehicle Ad-hoc Networks (VANETs) is the name of the Internet of Vehicles in the category of networking forms. As a special for...

AI Technical Summary

Problems solved by technology

However, all of them only use the spatial deployment capability of UAVs, but do not make full use of their flexible mobility to help enhance road connectivity, nor do they involve future trajectory decisions for changing road traffic conditions. Dynamic and real-time requirements

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