基于层次模型定量推理机制的潜水器故障诊断系统设计

Integrated quantitative reasoning mechanism of fault detection and diagnosis at different hierarchies of underwater vehicles

基于智能信息处理故障诊断方法,描述和分析了用于潜水器一类的复杂动态系统。通过引入概率信息的方法对其推理机制进行量化,实现了诊断结果的精确度量以及诊断过程的精确控制;针对系统不同层次间的检测和诊断进程建立了信息交换和综合设计方法,提高了各模块的检诊能力和检诊效率,可以从总体上提高处理复杂故障情况的水平。

A diagnosis methed based on intelligent information processing is described and analyzed, which can deal with complex dynamic systems such as underwater vehicles. By quantifying the reasoning mechanism with probability information, the diagnosis results can be measured quantitatively and the diagnosis process can be controlled ac, curately. On the other hand, an integrated design method is proposed to deal with the information exchange between different hierarchies, which is proved to not only improve the diagnosis capability of modules and efficiency, but also make the system able to deal with seme complicated faults which could not Me, diagnosed correctly in the past.