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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 safe operation of the integrated avionics system, a new avionics system failure detection model is proposed. By introducing a multi-dimensional collision model of the virtual region, when the failure occurs, the chaotic changes of the avionics system data show in the space Of the collision characteristics of the avionics system possible failure risk testing to ensure that the system does not reduce service availability conditions to complete the safety testing.Using queuing network environment modeling tools for experiments to compare the different failure rates and failure types Distribution and recovery strategy.The experimental results show that this method can quantitatively analyze the impact of hardware and software failures of avionics system on the system safety performance without increasing the system burden.