Unmanned aerial vehicle cluster random access method

Abstract

The invention discloses an unmanned aerial vehicle cluster random access method, and belongs to the field of unmanned aerial vehicle communication. The method comprises the steps of designing a standardized message mutual recognition format and designing a random access mechanism. According to the invention, a distributed high-dynamic random access protocol distributed according to needs is designed on the top layer of the unmanned aerial vehicle cluster, a dynamic resource management method based on a proportional fairness algorithm and a random access method are adopted, so that the problem of uncertainty generated during access and exit of sub-nodes of the unmanned aerial vehicle cluster is solved; and the problem of conflict of a plurality of access requests in the communication process is effectively avoided. According to the method, the efficient time slot allocation method can be used along with changes of task plans, task processes and strategic tactics so as to improve the performance of a TDMA protocol, the role of each unmanned aerial vehicle is quickly adjusted, and resources occupied by the unmanned aerial vehicles are fairly and efficiently reallocated. The unmanned aerial vehicle cluster collaborative operation can be controlled, and the method is suitable for the fields of military, agriculture, urban rescue, environmental survey, smart city and the like.

Description

technical field [0001] The invention relates to a method for randomly accessing an unmanned aerial vehicle cluster, which belongs to the field of unmanned aerial vehicle communication. Background technique [0002] The UAV cluster is composed of a large number of miniaturized, cheap, and highly maneuverable UAV nodes. The nodes are interconnected through wireless self-organizing network technology to build an intelligent system with distributed functions. Its remarkable combat effectiveness, low cost, The advantages of small damage loss and easy mass equipment are the main trends in the development of UAVs in the future. This distributed control mode of UAV cluster cooperative confrontation breaks through the limitations of local perception and task execution of a single UAV, and plays an important role in military, agricultural systems, urban rescue, environmental survey, smart cities and other application fields. . [0003] At present, the mainstream UAV cluster networki...

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Problems solved by technology

[0005] Aiming at the requirement of frequent access and exit of unit UAVs during the working process of UAV clusters, it also solves the problem of dynamic redistribution caused by role changes and task changes in UAV cluster operations and the problem of multiple nodes sending access requests at the same time Conflict avoidance problem, the present invention discloses a random access method of UAV cluster, the purpose is to solve the uncertainty of deployment, use, network access, withdrawal, withdrawal of UAV cluster nodes, and clarify node task types and role division , realize real-time adjustment, and avoid multiple access request conflicts in the communication process

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