Three-dimensional traffic vehicle positioning method based on unmanned aerial vehicle

Abstract

The invention discloses a three-dimensional traffic vehicle positioning method based on an unmanned aerial vehicle. The method comprises the steps that firstly, an area with weak satellite signals orwithout satellite signals is selected, and a target vehicle is located in the area; the vehicle sends a take-off instruction to the unmanned aerial vehicle, the unmanned aerial vehicle takes off and flies to the airspace after receiving the take-off instruction, the unmanned aerial vehicle is kept to hover in a communication network coverage range with the communication distance as the radius of the target vehicle, and it is guaranteed that the position relation of the unmanned aerial vehicle is nonlinear; secondly, the unmanned aerial vehicle obtains position information under an earth coordinate system through a positioning module of the unmanned aerial vehicle, and broadcasts the position information of the unmanned aerial vehicle to a target vehicle through V2X communication; and finally, the target vehicle receives the position information of the unmanned aerial vehicle and calculates the distance to the unmanned aerial vehicle, so that the position of the target vehicle is calculated, and the positioning requirement of the target vehicle is met under the condition that the satellite positioning system cannot obtain a good positioning effect.

Description

Technical field: [0001] The patent of the present invention relates to the field of positioning of the Internet of Vehicles, in particular to a three-dimensional traffic vehicle positioning method based on an unmanned aerial vehicle. Background technique: [0002] With the rapid development of Internet information technology, the trend of intelligence and networking is becoming more and more prominent. Affected by this, the Internet of Vehicles technology is rising day by day, and its development speed is accelerating. my country has raised the development of Internet of Vehicles and Intelligent Networked Vehicles to the national strategic level. Intelligent networked vehicles use some advanced on-board sensors, controllers, actuators and other devices, and integrate modern communication and network technologies to realize the exchange and sharing of intelligent information between vehicles and people, vehicles, roads, backgrounds, etc., to achieve safety, comfort, and energ...

AI Technical Summary

Problems solved by technology

In some special areas, such as "urban canyons" with dense high-rise buildings, due to the signal being blocked and the serious multipath effect, there will be a large deviation between the positioning result and the actual position, and even cause the positioning work to fail

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