故障的

Secondly, with the reference of the fuzzy properties of FD and the severe defaults of two-value logic model, FL is introduced to design a general Fuzzy Logic Fault Diagnostic program. This program is used in Fuzzy Pattern Recognition of fuzzy logic diagnostic model.

鉴于故障诊断的模糊性和二值逻辑的严重缺陷，引入模糊逻辑，编制了一个通用模糊诊断程序，对基于模糊逻辑的诊断模型进行模糊模式识别，根据用模糊语言表述的故障征兆，得出发生各种故障的隶属度。

On the basis of the analysis to the short circuit malfunction in domestic underground high voltage power network the paper deeply studied the relevant protection principle and the approach for improving the sensitivity and reliability of short circuit protection in underground high voltage power network designed the new type computerizable protection scheme of selective and rapid short circuit in underground high voltage power network with computer communication and logic identification technology Computer .

在分析我国井下高压电网短路故障的基础上，深入研究相关的保护原理及提高井下高压电网短路保护灵敏度和可靠性的方法，设计出新型的利用计算机通信与逻辑识别技术的井下高压电网微机选择性速断短路保护方案，将微机保护应用于煤矿井下高压电网，通过多机通信，逻辑判断判定线路故障段，从而做到快速的，有选择性的切断故障线路，避免煤矿井下高压电网因越级跳闸而造成大面积停电。

In addition, under the situation of anti hiking hardware, adoption software programming of device, can vs lift above row, down row of in the course steer auto - of fault detection, also fault pilot lamp prompt, in certainly extent shorten lift maintenance repairs personnel check bank fault of time area concentration diagram.

同时由于采用的是"软接线"方法的控制程序，系统的可靠性和灵活性都大为提高。此外，在不增加硬件的情况下，采用软件编程的方法，进行自动的故障检测，并有故障指示灯提示，在一定程度上缩短了电梯维修人员查排故障的时间。

The misaction and nonaction of protection can bring the immeasurable loss for power plant and power system .So the fault analysis of the unit have been a problem for a long time that worker have to face. However some recorder of unit can only matriculate the waveform such as the analysis and calculate of electric parameter that the worker want to know , find the cause of fault correctly, analysis and appraise the action of protection and automechanism.

发变组作为电力系统中重要的电力设备，尤其是大型机组，同时配套有大量不同工作原理的保护，运行工况复杂，相对事故率较高，故障种类多，故障原因各异，故障的分析、判断更加困难，对机组的安全和稳定运行极其重要，保护装置的拒动或误动，都会给发电厂或电力系统带来不可估量的损失。

With fault signals of vibration tested in practice, this paper takes frequency-domain half-power bandwidth Gauss wavelets of continuity, index wavelets decomposition and equivalent bandwidth equivalent sampling discrete bi-orthogonal wavelets decomposition as basis, presents scaling correlated analysis correspondingly toward wave making vibration signals, and accurately realizes to decompose different stress wave speeds, and provides a method of analysis and calculation for accurated location and recognition of the polygenetic faults.

根据上述故障力学模型，我们提出并设计了相应的测试系统，对实测的故障振动信号，以频域半功率带宽连续高斯小波、指数小波分解和等带宽等采样离散双正交小波分解为基础，提出了相应的对波致振动信号的尺度相关分析，准确地实现了分离不同的应力波速，为多源故障的精确定位识别提供了分析和计算方法。

The concept of entropy is applied to define an index on evaluating the abnormal condition. Prediagnosis of machine fault is made using the spectral structure distribution divergence as a criterion, in which the J divergence concept and multi-parameter evalution theory that describe the pseudo distances between the sampling signals and the corresponding standard faulty signals are used.

为此，基于信息熵提出了一个机组起停车过程转子运行状态的评估指标，并在此基础上，为实现机组运行故障早期预诊的目的，进而基于J散度及多参数评估理论，提出了信号频谱结构分布散度的概念，以描述实测信号与机组典型故障信号间的伪空间距离，从而实现了机组运行故障的初步预诊。

The system can not only monitor and diagnose trouble on line about these sets running state, but also provide the basic state and the ability of maintenance situation message, it conjoins the vibration data and technical parameter and present regular monitor message, it realizes the regular assessment in common running condition of the sets and the comprehensive trouble diagnosis analysis in unusual running condition, it provides important foundation for maintenance and the sets trouble found earlier.

系统不仅可以对这些机组的运行状态进行在线监测和故障诊断，而且还应提供机组基本状况及维修情况信息采集功能，将振动数据、工艺参数及现有的人工定期监测信息结合起来，实现机组正常状态的定期评估和机组异常状态下的综合故障诊断分析，为机组故障的早期发现和维修决策提供重要依据。

In this paper, Frequent fault diagnosis of the reducer are generalized through a great deal fault-cases of reducer were collected, and the fault mechanism and the vibration characteristics of the pivotal parts of gear and bearing are introduced in detail.

本文首先通过对减速机故障的大量调查及信息搜集，对减速机故障诊断中出现的主要问题进行了详尽的分析，特别对减速机易出现故障的关键部件轴承和齿轮的诊断机理进行了研究。

Combined with practical work in Liuxiang trade city in Taiyuan, in view of the faults of high power gas discharge lamp the causing reasons are analyzed from three aspects: starting condition, working pressure and supporting equipments.

摘 要：结合太原柳巷商城的工程案例，从大功率气体放电灯的故障入手，从灯的启辉情况、工作管压、配套工作件三方面分析了故障的原因，指出这些原因在系统配套件的作用下引发故障的真相。

In order to improve the operator's ability of distinguishing, diagnosing, and solving printing failures, a simulation printing failures learning system was established on the applying platform of a virtual printing press. Operator can learn how to distinguish the types of printing failures, to find the causes, and to solve the problems from the simulating printed products on a virtual printing press.

为了提高操作者对印刷故障的识别、诊断和排除能力，通过建立在虚拟印刷机使用平台上的印刷故障学习系统，使学习者能够在脱离物理样机的情况下，根据虚拟印刷品学习判断印刷故障的类型、产生的原因和解决方法。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。