信号混沌性虚拟碰撞下的航电系统失效检测  

Failure detection of the avionics system based on chaotic virtual collision of signals

作　　者：张超[1] 张凤鸣[1] 吴虎胜 朱琳[1] 

机构地区：[1]空军工程大学装备管理与安全工程学院,陕西西安710051 [2]武警工程大学装备工程学院,陕西西安710086

出　　处：《西安电子科技大学学报》2015年第4期121-126,共6页Journal of Xidian University

基　　金：国家自然科学基金资助项目(61174194);航空科学基金资助项目(20110196004)

摘　　要：为保证综合航电系统的安全运行,提出了一种新的航电系统失效检测模型.引入一种虚拟区域的多维碰撞模型,利用失效发生时,航电系统数据混沌性变化在空间中表现出的碰撞特征,对航电系统中可能存在的失效风险进行检测,保证系统在不降低服务可用性的条件下完成安全性检测.采用排队网环境建模工具进行实验,比较不同失效发生率、失效类型分布和恢复策略下的实验结果.实验结果表明,该方法能够定量分析航电系统软硬件失效对系统安全性能的影响,无需增加系统负担.In order to ensure the operation security of the integrated avionics system ,a new model for failure detection is proposed . Firstly ,according to the chaotic feature of the obtained data ,a multi‐dimensional collision model of the virtual area is introduced . Then ,when the failure occurs ,by utilizing the collision feature of avionics system data＆#39; chaotic change in space ,the possible failure risks in the avionics systems are detected ,so as to ensure the security detection of the system under the service availability condition . Finally , the QPME is applied in experimental simulation .It can be seen from the results of failure occurrence rate type distribution and recovery strategy ,that this method can quantitatively analyze the impact of hardware and software failures on the safety performance and reduce the burden on the avionics system .

关 键 词：航电系统 失效性 混沌性 虚拟区域 碰撞特性 

分 类 号：TH691.9[机械工程—机械制造及自动化]