高速公路突发事件下无人机的应急通信时延控制方法

The emergency communication delay control method of UAV under expressway emergency

针对传统无人机应急通信平均时延较长的问题,提出一种基于高速公路突发事件下无人机应急通信时延控制方法。将应急通信信道中目标任务划分为不同的目标任务群,根据目标任务群中各目标任务间的距离构建对称矩阵,对对称矩阵中所有元素进行归类,通过蚁群算法对归类结果进行计算,构建无人机的应急通信任务调度模型。结合应急通信任务调度模型以及无人机应急调度任务的需求、优先级、时间窗、通信能力,以无人机执行任务收益效率最大化、执行任务完成率最大化以及对无人机时延风险最小化为目标,实现无人机应急通信的时延控制。实验结果证明,所提方法可以有效减少应急通信时间与平均时延。

Aiming at the long average delay of traditional UAV emergency communication transmission method under different system loads,it proposes a method of UAV emergency communication delay control based on highway emergency.It divides the target tasks in the emergency communication channel and obtains target task group.According to the distance between the target tasks in the target task group,it builds the symmetric matrix,classifies all elements in the symmetric matrix,takes ant colony algorithm to calculate the classification,and establishes the emergency communication task scheduling model of UAV.Combining the task scheduling model of emergency communication,it analyzes the requirements,priority,time window and communication capability of UAV emergency scheduling under expressway emergencies.The experimental results show that the proposed method can effectively reduce the emergency communication time and average delay.