A data transmission method and system
A data transmission method and data technology, applied in the field of communications, can solve the problems of high data transmission delay, limited capacity, and short UAV battery life, and achieve the effect of reducing delay and increasing capacity.
Active Publication Date: 2019-09-17
BEIJING UNIV OF POSTS & TELECOMM
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[0004] However, because the battery life of UAVs is generally relatively short, with the explosive growth of data services in practical applications, in the existing UAV cluster network, multi-hop communication is used for data transmission. The capacity of the network is limited by the capacity bottleneck of the last hop to the ground control station, but the closer to the ground control station, the greater the amount of data transmission, which limits the data transmission capacity of the entire UAV cluster network; at the same time, multi-hop communication is used. For data transmission, as the number of nodes increases, the number of hops will increase accordingly, and the delay of data transmission will also increase.
From the above analysis, it can be concluded that the existing methods of data transmission in the UAV cluster network make the capacity of the entire UAV cluster network limited during the data transmission process, and the delay of data transmission is high.
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[0055]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0056] The existing UAV cluster network adopts multi-hop transmission mode for data transmission. The data transmission of UAV to the control station needs to be forwarded by multiple UAVs, and the capacity of the UAV network is limited by the last link to the ground control station. Hop capacity bottleneck, and in data transmission, the network capacity and delay in the network are determined by the number of nodes, this data transmission method of the existing...
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An embodiment of the invention provides a data transmission method and system, which are applied to the technical field of communication. The method comprises the following steps: a first unmanned aerial vehicle receives data sent by a second unmanned aerial vehicle according to interaction information of the first unmanned aerial vehicle and the second unmanned aerial vehicle, wherein the first unmanned aerial vehicle an unmanned aerial vehicle moving from the current position of the unmanned aerial vehicle to a control station, and the second unmanned aerial vehicle is an unmanned aerial vehicle within a communication range of a return path of the first unmanned aerial vehicle to the control station; the first unmanned aerial vehicle carries the data and flies to the control station according to the return path; and the first unmanned aerial vehicle forwards data to the control station. According to the data transmission method and system, capacity of an unmanned aerial vehicle cluster network in the data transmission process is improved, and time delay of data transmission is reduced.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and system. Background technique [0002] Unmanned aircraft, referred to as "UAV", is an unmanned aircraft controlled by radio remote control equipment and its own program control device. Due to its small size and strong flexibility, UAVs play a very important role in both military and civilian fields. [0003] In the existing UAV cluster network, multi-hop communication is used for data transmission. The data transmission of the UAV to the control station needs to be forwarded by multiple UAVs on the path. Among them, the main function of the UAV is to serve as air base station. Each UAV covers an area, and the mobile terminal in this area sends data to the UAV, and the UAV forwards the data to the corresponding mobile terminal after receiving the data. The UAV plays an important role in the entire data transmission process. The role ...
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IPC IPC(8): G05D1/12
Inventor 尉志青赵亚东郭子俊冯志勇刘云峰
Owner BEIJING UNIV OF POSTS & TELECOMM