A kind of two - step neural network based on the improved fuzzy hamming net is proposed . and an intelligent fault detecting system of the robot based on this network is established in this paper . an experiment of the foot ' s lifting - and - dropping system of the robot is done 建立了基于vc的壁面机器人的智能故障诊断系统，并进行了对壁面机器人系统的故障诊断实验，完成了从数据采集、数据预处理、神经网络训练到系统的故障诊断等一系列实验过程。
This dissertation focuses the key points of the researches on the signal processing techniques for intelligent fault diagnosis systems , especially on the application of wavelet analysis ( wa ) and neural network ( nn ) technology in the field of the intelligent fault diagnosis 智能故障诊断技术在航空航天、核电站及大型设备等中得到广泛的应用。本文主要对智能故障诊断中的信号处理技术，特别是基于小波分析的信号处理技术与神经网络技术进行了研究。
This paper makes researches on the engineering application of intelligent diagnostic technique as follows : ( 1 ) the architecture of intelligent diagnostic system based on multi - agent ( mas ) is presented . that enables the diagnostic system adjust according to the structure of the equipment 本论文对智能诊断技术在实际工作中的应用做了研究，主要研究内容如下： ( 1 )设计了一种基于多agent的智能故障诊断系统总体结构，使诊断系统能根据设备的结构变化而动态调整。
On the other hand , boundary - scan technique intelligent fault diagnostic method was applied to practice . for most digital system , devices with boundary - scan architecture are broadly used . only using four line or five line to connect pc parallel port with cut tap ( test access port ) , all the ptvs can be loaded to cut and all homologous prvs can be taken back to intelligent fault diagnosis system 至于本文采用边界扫描测试故障诊断技术，是考虑到本系统的通用性和简洁性，因为对于大多数数字系统而言，具有边界扫描结构的器件己广泛应用，本文只需4条或5条信号线就能将pc机和被测边界扫描电路连接起来，由此极大地简化了智能故障诊断系统中为实现ptvs加载和prvs获取而专门设计的接口板电路。
However , the relation between malfunctions and thermal parameters is not simple , and the knowledge about the relation , which we can get , is mainly from experimentation and the accumulation of working experience . depriving the fault information in an economical and accurate way becomes a hard problem for fault diagnosis . with the development of the calculation method of diesel working process , fault simulation becomes an efficient way to solve the problem 但故障与热工参数之间常常不存在简单的对应规律，而且，目前人们对柴油机热工参数与故障之间的关系的认识主要来源于试验和经验的积累，怎样经济地获得准确的诊断知识成为柴油机智能故障诊断的难题，随着计算机应用技术和柴油机工作过程数值模拟计算方法的不断发展，故障仿真计算是解决这一难题的有效途径。
Benefit from designer experience , expert system regulations are built by c language . through the inference , all fixed logic fault and most multi - line short circuit fault are detected by expert system . on that account , the design process built by c language will be a mode that can be imitated by other intelligent fault diagnosis system 对于专家系统智能故障诊断技术而言，构建专四川大学硕士学位论文家系统规则库和设计推理机制是重点，本文采用c语言构建规则库，然后通过精心设计的专家推理机，从而使得固定逻辑故障和大多数多线桥接故障能够被专家诊断系统检测出来。
The development of mechanical fault diagnosis technology and the research overview , research goal and research significance of intelligent fault diagnosis technology used in the field of equipment are described and the shortcomings of it are discussed . the fault diagnosis mechanism , fault types and diagnosis methods of equipment are also discussed . the methods of intelligent fault diagnosis based on knowledge and intelligent fault diagnosis based on neural networks are discussed , too 本文以旋转机械转子系统和电动机为智能故障诊断研究对象，阐述了机械故障诊断技术的发展以及智能故障诊断技术在设备故障诊断领域的研究概况，研究的目的与意义，存在的问题与不足；系统、深入地研究了设备故障诊断机理、故障类型及故障诊断方法；详细论述了利用专家系统进行故障诊断的智能诊断技术和基于神经网络的智能故障诊断技术；利用visualbasic与matlab集成并结合access等软件进行可视化联合编程的理论及机械设备故障智能诊断系统的实现过程与运行实例。
The multi - layers fuzzy neural networks fault diagnosis system is set up by using the hierarchy decomposing strategy to carry out condition monitoring and diagnosing . finally , combined with the technology of short signal analysis , the application software of fuzzy neural networks fault detecting and diagnosis system ( fdds ) for desams is developed independently with the microsoft visual c + + 6 . 0 利用功能层次分解策略，建立了电液伺服道路模拟试验台的故障诊断的多层次智能故障诊断系统，采用vc6 . 0开发工具，自主开发了具有实际应用价值的故障诊断软件fdds 。
Trough experiment it can be proved that the improvement can notable lessen time in train network . at kst after dealing with the signal collected in test - bed for simukting the broken - down gear - box , using the software a neural - network is designed . after being trained and testing the neural - network is proved to reach the require of diagnose for gear - box 最后又由齿轮箱模拟故障试验测得的试验数据在智能故障诊断系统软件中进行信号处理和神经网络的训练，经对训练好的神经网络检验可以看出它是完全能满足齿轮箱齿轮的故障诊断要求的。
Lively resource of diagnosed equipment is provided for remote monitor and diagnosis by remote virtual instrumentation " which is built by using network techniques . ai incarnates intelligence of intelligent diagnosis . cbr ( case - based reasoning ) can solve new problems rapidly and accurately 智能故障诊断作为远程维护技术的一项重要技术，其智能性依赖于ai技术体现， ai技术近期发展起来的基于案例推理( case - basedreasoning简称cbr )技术具有迅速、准确地求解“新”问题的能力。
