Unmanned aerial vehicle system based on variable message format data link and communication method

Abstract

The invention belongs to the field of unmanned aerial vehicle communication, and relates to an unmanned aerial vehicle system based on a variable message format data link and a communication method. The system comprises a man-machine interaction module, a message generation module, a segmentation / recombination module, a sending module, a receiving module and a message analysis module. Data element extraction and data element dictionary query are carried out on a message needing to be sent, so that the function domain to which the message belongs, the message number and the message content are obtained, a binary message is generated according to the function domain to which the message belongs, the message number and the message content, the length of the message is changed along with the size of useful information, the data sending amount is reduced, and limited bandwidth resources are saved. In addition, a UDP protocol is adopted for transmission, and a segmentation / recombination mechanism and a retransmission confirmation mechanism are added, so that the transmission reliability is ensured.

Description

technical field [0001] The invention belongs to the field of unmanned aerial vehicle communication, and relates to an unmanned aerial vehicle system and a communication method based on a variable message format data link. Background technique [0002] With the development of science and technology and the improvement of living standards, drones have gradually expanded from military use to civilian use, and are becoming more and more common in daily life. Different from military UAVs, due to the limitations of radio frequency bands and communication equipment, most civilian UAVs use a dedicated remote control for flight control. The control method is single and the distance is limited. Communication during UAV flight Quality is also easily affected by houses, trees. In addition, when UAVs on different platforms communicate, due to the different message formats, they may not be able to read each other's messages correctly; therefore, if the two parties want to communicate, th...

AI Technical Summary

Problems solved by technology

The authorized patent "method and device for controlling unmanned aerial vehicles to access the network" (publication number: CN108702203A), discloses a method and device for controlling unmanned aerial vehicles to access the network, mainly including two communication modules, the first communication module It is used to obtain the information to be transmitted, and the second communication module sends the information to be transmitted to the information receiving end. In this patent, only a general network architecture is designed, and how to connect the drone to the network is introduced. The correspondence did not mention

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