摘要
为确保城市低空空域内无人机规模化运行安全,缓解低空交通运行瓶颈,本文借鉴地面交通较为成熟的研究成果,结合城市低空及无人机运行特色,提出一种基于通信信号管制的城市空中交叉口设计模型。首先,考虑航路构型设计与航路运行主体,构建无人机运行所需的城市低空航路。其次,从进出口道、冲突响应距离2方面对空中交叉口几何结构进行设计,再从进口航道划分、通信信号管制、无人机高度调整3方面对交通组织进行设计,实现对空中交叉口的基本模型设计。最后,设置仿真实验验证该模型的可行性,并分析不同参数组合下的交叉口综合通行效率。实验结果表明:当飞行速度为18 m/s,纵向间隔为50 m,管制信号周期时长为226 s时,综合通行效率达到最佳。本研究可为未来城市空中交通航路网络精细划设与管理提供支撑,增强低空无人机交通的实践性。
To ensure the safety of large-scale operation of unmanned aerial vehicle(UAV)in urban low-altitude airspace and alleviate the bottleneck of low-altitude traffic operation,this paper draws on mature research results in ground transportation and combines the characteristics of urban low altitude and UAV operation to propose an urban air intersection design model based on communication signal control.Firstly,the design of air route configuration and main body of route operation are considered to construct the urban low-altitude air routes required for the UAV operation.Secondly,geometric structure of air intersection is designed from two aspects of entrance and exit channels as well as conflict response distance.Then,traffic organization is designed from three aspects of entrance channel division,communication signal control and UAV height adjustment to achieve the basic model design of the air intersection.Finally,simulation experiment is set up to verify the feasibility of the model,and the comprehensive traffic efficiency of intersection under different parameter combinations is analyzed.The experiments show that when the flight speed is 18 m/s,the longitudinal interval is 50 m and the duration of the control signal cycle is 226 s,the comprehensive traffic efficiency reaches its optimal level.This research can provide support for precise planning and management of future air route network in urban air mobility and enhance the practicality of low-altitude UAV transportation.
作者
张洪海
黄雨婷
戴一鸣
夷珈
万俊强
ZHANG Honghai;HUANG Yuting;DAI Yiming;YI Jia;WAN Junqiang(College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)
出处
《中国民航大学学报》
CAS
2024年第2期1-12,共12页
Journal of Civil Aviation University of China
基金
国家自然科学基金项目(71971114,U2133207)。
关键词
空中交通管理
城市空中交通
无人机
交叉口
通行效率
air traffic management
urban air mobility
unmanned aerial vehicle(UAV)
intersection
traffic efficiency
