The invention relates to an unmanned aerial vehicle dynamic 3D trajectory design method suitable for a disaster scene, and belongs to the field of unmanned aerial vehicle wireless communication. The method comprises the following steps: performing priority division on clusters constructed by ground nodes according to a disaster area condition, calculating a cluster information age growth coefficient according to the priority division, and constructing each cluster information age model; calculating the maximum transmission radius of each cluster head according to the cluster head transmission power and the channel model of the cluster head and the unmanned aerial vehicle; within the maximum transmission radius, modeling the optimal acquisition point problem of the unmanned aerial vehicle as a Markov decision model, and establishing and solving an optimization problem by taking the weighted sum of the propulsion energy consumption of the unmanned aerial vehicle and the average information age of the network as a target to obtain the optimal acquisition point of the unmanned aerial vehicle in each cluster; and selecting the optimal acquisition point of the cluster with the minimum target function value, namely the next hovering acquisition point of the unmanned aerial vehicle. According to the method, the disaster degrees of different areas are distinguished, the data of the seriously affected areas are preferentially acquired within limited energy consumption, and the data acquisition efficiency is improved.

    本发明涉及一种适用于灾难场景的无人机动态3D轨迹设计方法,属于无人机无线通信领域。本发明根据受灾区域情况对地面节点构建的簇群进行优先级划分,据此计算簇群信息年龄增长系数,由此构建各簇群信息年龄模型;根据簇头传输功率和簇头与无人机的信道模型,计算各簇头的最大传输半径;在最大传输半径内,将无人机最佳采集点问题建模为马尔可夫决策模型,以无人机推进能耗与网络平均信息年龄的加权和最小为目标,建立优化问题并求解,获得无人机在各簇群的最佳采集点;选取目标函数值最小的簇群的最佳采集点,即为无人机的下一个悬停采集点。本发明对不同区域的受灾程度进行区分,在有限能耗内,优先采集受灾严重区域数据,提升数据采集效率。


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    Title :

    Unmanned aerial vehicle dynamic 3D trajectory design method suitable for disaster scene


    Additional title:

    适用于灾难场景的无人机动态3D轨迹设计方法


    Contributors:
    LI MIN (author) / ZHU LIGANG (author) / TIAN YA (author) / WANG HENG (author)

    Publication date :

    2025-02-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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