Unmanned aerial vehicle visual landing method and system based on 5G network

Abstract

The invention discloses an unmanned aerial vehicle visual landing method and system based on a 5G network. The method comprises the steps that a ground end system sends a landing control signal to anunmanned aerial vehicle; an unmanned aerial vehicle acquires images through a high-definition camera, the images are transmitted to a ground end system and a visual navigation module through an unmanned aerial vehicle end 5G network communication module for image recognition, the acquired images are subjected to image graying processing and image edge detection, and when a landing beacon is detected, the visual navigation module calculates the relative position of the unmanned aerial vehicle and the landing beacon; the unmanned aerial vehicle main control module adjusts the position of the unmanned aerial vehicle until the optical center of the high-definition camera coincides with the center of the landing beacon; the vertical distance between the unmanned aerial vehicle and the landing beacon is measured through the ultrasonic ranging module in the landing process of the unmanned aerial vehicle, when the distance between the unmanned aerial vehicle and the landing beacon is smaller than a set value, the unmanned aerial vehicle stops running, and landing is completed. According to the invention, precise landing of the unmanned aerial vehicle is completed, signal transmission is carried out based on a 5G network, and ultra-high-definition real-time video transmission of the unmanned aerial vehicle is realized.

Description

technical field [0001] The invention relates to the technical field of UAV visual navigation, in particular to a 5G network-based UAV visual landing method and system. Background technique [0002] With the rapid development of the drone industry, the application of drones involves many industries, and there are many ways to control drones. The most common ones are manual remote control and ground station control. These two control methods are used in There are certain defects in controlling the UAV to land. When the UAV is landed manually, the UAV may be damaged due to improper operation; when the ground station controls the landing, the UAV cannot complete the precise landing due to positioning errors. On the other hand, most of the existing UAV visual landing methods use Wifi for image transmission, sometimes the image transmission is delayed due to signal reasons, and the transmission distance is also greatly limited. Contents of the invention [0003] In order to ove...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the present invention provides a 5G network-based UAV visual landing method and system to solve the problem of control errors during manual landing and traditional UAVs using GPS systems for navigation and positioning. The inaccuracy leads to inaccurate landing positions. The invention cooperates with the visual algorithm and the ultrasonic sensor to complete the precise landing of the UAV. Based on the signal transmission of the 5G network, it realizes the ultra-high-definition real-time video transmission of the UAV.

Images