铁路通信信号工程技术2026，Vol.23Issue(5)：14-21,36,9.DOI:10.3969/j.issn.1673-4440.2026.05.003
基于系统安全分析的低空无人机冲突检测模型
Modeling of Conflict Detection for Low-altitude UAVs Based on System Safety Analysis
摘要
Abstract
While low-altitude Unmanned Aerial Vehicle(UAV)operations face collision risks in complex environments,traditional fixed separation thresholds have difficulties in adapting to complex meeting scenarios,with excessive thresholds resulting in airspace resource wastes and insufficient thresholds leading to residual collision hazards.This paper introduces system safety analysis methods to identify key risk factors in a UAV Traffic Management(UTM)system,and designs an adaptive dynamic Protected Airspace Zone(PAZ)model that incorporates safety parameters such as speed,acceleration,positioning error,and redundancy distance.Combined with an airspace grid partitioning and layered conflict detection algorithm,this approach enables efficient real-time conflict detection and tiered response for low-altitude UAVs.Experiments in vertical crossing,head-on horizontal and oblique approach,and communication loss scenarios validate the algorithm's effectiveness:all conflicts are resolved with final separations above safety thresholds and a nearly 100%collision avoidance success rate.Monte Carlo simulations further show an average response time of 2.9 s,demonstrating strong robustness and real-time performance.This research provides a novel approach that integrates system safety engineering with conflict detection technology to enhance collision risk management for low-altitude UAVs.关键词
低空无人机/冲突检测/动态保护区/系统安全分析/网格化空域Key words
low-altitude UAV/conflict detection/dynamic protection zone/system safety analysis/airspace grid分类
航空航天引用本文复制引用
陈磊,石渤..基于系统安全分析的低空无人机冲突检测模型[J].铁路通信信号工程技术,2026,23(5):14-21,36,9.基金项目
国家自然科学基金项目(72542015) （72542015）
北京市基础设施投资有限公司科研项目(2024-JT-06) （2024-JT-06）
国能朔黄铁路发展有限责任公司科技创新项目(SHTL-25-48) （SHTL-25-48）
