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Distributed center selection and communication method for unmanned aerial vehicle cluster

A communication method and unmanned aerial vehicle technology, applied in the field of unmanned aerial vehicle communication, can solve problems such as the collapse of unmanned aerial vehicle group communication network, and achieve the effect of ensuring global optimality, strong robustness, and unrobust solutions

Active Publication Date: 2021-07-30
HARBIN INST OF TECH
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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a distributed center selection and communication method for UAV clusters to solve the problem of the collapse of the UAV swarm communication network caused by the disconnection of the central node in the existing centralized communication network

Method used

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  • Distributed center selection and communication method for unmanned aerial vehicle cluster
  • Distributed center selection and communication method for unmanned aerial vehicle cluster
  • Distributed center selection and communication method for unmanned aerial vehicle cluster

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specific Embodiment 1

[0069] Validate the effectiveness of the present invention. Assuming that there are 6 drones in the self-organizing network, during the operation, the central node is randomly shut down to simulate the damage or loss of the central node. Consider the following two cases to evaluate the performance of the inventive method:

[0070] 1) The self-organizing network is connected normally, and information can be exchanged normally between the 6 UAV nodes;

[0071] 2) The self-organizing network is disconnected and divided into two connected sub-networks, each sub-network contains three UAV nodes (note: the algorithm is not limited to this specific case).

[0072] Figure 5 It shows the state transition process of 6 UAVs, where 0, 1 and 2 represent the nodes Leader, Candidate and Follower respectively. Figure 5 (a) means: if the network is connected normally, only one Leader is active in the whole process; when the Leader disappears or crashes, a new Leader will be determined to ...

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Abstract

The invention discloses a distributed center selection and communication method for an unmanned aerial vehicle cluster, belongs to the technical field of unmanned aerial vehicle communication, and is used for solving the problem of crash of an unmanned aerial vehicle cluster communication network caused by disconnection of a center node in an existing centralized communication network. The technical key points of the invention are as follows: the node state of the unmanned aerial vehicle is described as one of the following three: Leader, Follower and Candidate; the complex network environment is dealt with by dynamically adjusting the node state, various conditions possibly occurring in node state conversion are considered, a coping strategy is given, and when the Leader does not exist in a communication network or is disconnected, the unmanned aerial vehicle group can quickly and autonomously select a new Leader as a central node in a distributed manner, so that a new centralized communication network is established. According to the method, global situation awareness of a rear end and global optimality of decision making are ensured, and meanwhile, the problem that a centralized communication architecture is not robust in a confrontation environment is solved. The method can be used for task allocation of the unmanned aerial vehicle cluster.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle communication, in particular to a distributed center selection and communication method of an unmanned aerial vehicle cluster. Background technique [0002] In recent years, the development of precise navigation technology and 5G communication technology has made the cluster application of drones more and more common. The improvement of self-organization ability and intelligence makes it widely used in various tasks, such as fire monitoring, cooperative search and cooperative interception, etc. To complete tasks autonomously by the UAV fleet, it is necessary to establish a stable and reliable UAV fleet communication network to transmit the information of individual UAVs, form a situational awareness of the current working environment, and coordinate the UAVs to perform corresponding tasks. [0003] There are two main types of communication network architectures for drone fleets: c...

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Application Information

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IPC IPC(8): H04W28/02H04W84/18
CPCH04W28/021H04W28/0236H04W84/18
Inventor 郝宁贺风华田春耕姚昊迪
Owner HARBIN INST OF TECH
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