Method, device and system for signal emission and UAV positioning

Abstract

Embodiments of the present invention provide a method, device, and system for signal transmission and UAV positioning. The signal transmission method includes: determining a relay station associated with a fixed base station; wherein, the relay station has at least two, and the At least two relay stations use the same communication channel to transmit signals, and the signal coverage areas of the at least two relay stations overlap; determine the signal transmission order of the at least two relay stations; control the at least two relay stations to transmit according to the signal The signals are transmitted alternately in sequence. Through the embodiment of the present invention, at least two relay stations are used to forward the signals of the fixed base station, the signal coverage area is increased, and there is no need to switch communication channels when communicating with at least two relay stations, even if the signal coverage of at least two relay stations In the overlapping area of ​​the area, set at least two relay stations to transmit signals alternately, and the drone can also receive signals normally.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to a method and device for signal transmission, a method and system for positioning an unmanned aerial vehicle, and an unmanned aerial vehicle. Background technique [0002] Unmanned aircraft, referred to as Unmanned Aerial Vehicle (UAV), is an unmanned aircraft that is controlled by radio remote control equipment and its own program control device. UAVs are widely used and are often used in urban management, agriculture, geology, meteorology, electricity, emergency rescue, video shooting and other industries. For example, drones can be used in agriculture to spray pesticides, fertilizers, etc. on agricultural products. [0003] In the prior art, drones usually use 4G network or radio stations to communicate with fixed base stations, and fixed base stations can directly send signals to drones, or fixed base stations can send signals to servers, and then the servers send sign...

AI Technical Summary

Problems solved by technology

[0004] Then, the direct communication distance between the radio station and the UAV is limited, generally within 2KM, and the existing technology has high requirements on the network signal. If the network cannot cover the area, such as the foot of the mountain, the UAV and the fixed base station will not be able to communicate normally. , UAVs cannot receive signals, and thus cannot perform positioning. Even if they can barely communicate, due to poor real-time communication and serious signal overtime, it will also affect the positioning of UAVs.

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