一种基于GSPN的无人机数据链动态可靠性建模方法研究  

A Dynamic Reliability Modeling Method of UAV Data Link Based on GSPN

作　　者：李娇 彭文胜 LI Jiao;PENG Wensheng(China Aero-Polytechnology Establishment,Beijing 101000,China)

机构地区：[1]中国航空综合技术研究所,北京101000

出　　处：《电光与控制》2023年第9期47-51,111,共6页Electronics Optics & Control

摘　　要：针对无人机数据链具有多业务融合、结构复杂、动态重构等特征,而传统可靠性建模方法无法准确表征其同步、并发、分布、冲突、资源共享或竞争等现象的问题,开展了基于GSPN构建数据链业务动态可靠性建模方法研究。通过GSPN模型中的资源、库所、变迁等概念描述数据链系统中的各种资源、状态、行为以及协作关系,并以特定的随机变量表示部件状态及其持续时间,模拟系统动态运行过程。采用PIPE软件工具对无人机数据链上行遥控、下行遥测以及下行任务载荷传输的3大业务形式化建模描述,实现可靠性准确评价。案例表明,所提方法可为无人机数据链提供可信的可靠性评价方法。UAV data link has the characteristics of multi-service fusion,complex structure and dynamic reconfiguration,and the traditional reliability modeling methods cannot accurately represent its synchronization,concurrency,distribution,conflicts,resource sharing or competition.To solve the problem,a dynamic reliability modeling method of data link service based on GSPN is studied.The concepts of resource,repository and transition in GSPN model are used to describe various resources,states,behaviors and cooperative relationships in the data link system.The dynamic running process of the system is simulated by using specific random variables to represent the states and duration of the components.PIPE software tool is used for the formal modeling and description of the three major services of UAV data link,that is,uplink remote control,downlink remote measurement and downlink task payload transmission,so as to realize the accurate reliability evaluation.The case study shows that the proposed method can provide a trustworthy reliability evaluation method for UAV data link.

关 键 词：数据链 无人机 可靠性 GSPN 仿真模型 资源竞争 

分 类 号：TP202.1[自动化与计算机技术—检测技术与自动化装置]