协作故障诊断系统中的诊断资源选择方法研究

本文给出了协作诊断系统、诊断任务、诊断资源的描述模型,描述了协作诊断系统的完备条件。提出了一种诊断资源的启发式选择算法,可以确定一个能够完成故障诊断任务的较优的可用诊断资源集。汽车故障诊断的应用实例表明本诊断资源选择方法是合理、可靠的。

远程故障诊断系统重构技术研究

给出可重构远程协作诊断系统的定义,描述远程协作诊断系统的体系结构。分析复杂诊断任务的分解与执行过程,相应地得到了远程协作诊断系统的重构模式,并论述远程协作诊断系统的重构与运行层次。最后给出远程故障诊断系统重构技术的应用实例,结果表明远程故障诊断系统重构技术的有效性。

Research on reconfigurable collaborative remote diagnosis system

The function-layer model and working model of collaborative remote fault diagnosis system （FDS）, which includes three layers： task layer, collaboration layer and diagnosing layer, are proposed. The running mechanism of the system is discussed. A collaborative FDS may consist of several subsystems running at different places and the subsystem consists of several fimction modules. A structure centered on data-bus is adopted in subsystem. All the function modules in subsystem are encapsulated into software intelligent chips （SICs） and SIC can but connect with data-bus. So, it is feasible to reuse these diagnosis fimction modules and the structure of subsystem in different diagnosis applications. With the reconfigurable SICs, several different function modules can reconstruct quickly some different diagnosis subsystems in different combinations, and some subsystems can also reconfigure a specified collaborative FDS.