Research On UAV Cluster Communication System Based On ARM

In recent years,with the development of UAV technologies such as battery life and intelligent control,UAV cluster communication has become a hot topic at home and abroad.In the process of drone cluster communication,the drone is used as an aerial base station to expand the coverage of the existing wireless network.And it also increases the capacity and strengthen the stability of communication.The drone uses multiple wireless transceivers to form network nodes,and uses multiple A hop,peer-to-peer central node mode to form a wireless self-organized network.The realization of task scheduling and communication deployment of drones in drone clusters is one of the key technical issues that urgently need to be solved in the field of drone clusters.This paper studies the communication data format and communication algorithms of drone task scheduling clusters.An improved RR scheduling algorithm and Wi-Fi self-organizing network drone cluster communication system plan is proposed,and the software and hardware design of the drone cluster communication system is implemented.The main content and innovations of this paper include :First,the task scheduling method of UAV clusters is deeply researched.This paper analyzes and compares the selection of RR algorithm for improvement,improves the speed of the general RR algorithm polling method through the improved two-part look-up method.And then this paper increases the delay time slice to improve different priorities The processing efficiency of high-level tasks.Improving the task output frequency stability and resource allocation rationality of the general earliest deadline and time slice scheduling algorithms,and realizes the stable and reliable flight of a single plane.Secondly,for the communication and networking of drone clusters,referring to the advantages of Wi-Fi and the difficulty of networking,the Wi-Fi networking scheme and the hierarchical and distributed networking mode are determined.For the limitation of node energy,an optimized link state routing protocol based on OLSR is proposed.virtual gravity is uesd to improve cluster control and enhance the information exchange between nodes.through software simulation,the OLSR optimized link state routing protocol and the backbone network distributed deployment algorithm are simulated,which realizes the self-adaptive networking function of the UAV and improves the stability of the networking topology.Finally,this paper carries out the hardware scheme design for the above two improvement schemes,and optimize the functions on the hardware circuit.Recording to this,the software design of the external resource configuration,control algorithm and networking communication algorithm of the UAV cluster is finished.As nodes form a network,topological structure is formed in the network.Writing custom network protocols and communication methods to realize the autonomy and reliability of cluster communication.Throughing field testing,significant results have been achieved,which has certain reference significance for the research of UAV cluster communication system.