test and fault model 中文意思是什麼
test and fault model
解釋
測試與故障模型-
Not only fault model, but also test arithmetic demand to be farther improved. the thesis, focusing on the 20 - port register file, makes a fault analysis, particularly in complex bridge fault and crosstalk coupling fault aroused by word - line and bit - line of 20 - port
本文針對所設計的寄存器文件進行了故障分析，特別對20埠字線、位線引起的復雜橋接故障和串擾導致的耦合故障進行了詳盡論述。 -
For the convenience of test, varied circuit chip defects caused by the production process are abstracted as all kinds of models. at present the commonly used fault models mainly consist of stuck - at fault, stuck - open fault, bridge fault, store fault, delay fault, etc. testing methods based on voltage testing mainly aim at stuck - at fault model and have also obtained satisfactory result in research for many years. bridge fault is tested easily by quiescent power supply current ( iddq ) testing method. in regard to stuck - open fault that is difficult to testd by quiescent power supply current ( iddq ) and voltage testing, it can is tested by the dynamic current ( iddt ) testing
為了便於測試，我們將生產過程中集成電路出現的多種多樣的缺陷抽象為各種模型。目前常用的故障模型主要有:固定故障，開路故障，橋接故障，存儲故障，時滯故障等。電壓測試主要針對固定型故障模型，多年的研究也取得了令人滿意的結果; cmos電路中的橋接故障則宜用穩態電流測試方法（ iddq ）測試;對于電壓和穩態電流難以測試的開路故障，可以使用瞬態電流測試（ iddt ）的方法進行測試。 -
At the stage of image recognition, a unique model of pcb fault recognition was built on methods of tree - classification and sequenntial probability ratio test, and a kind of method of m feature selection and extraction was introduced
在圖像識別中，本文分析了常用的模式識別方法，根據樹分類法和序貫概率比檢定法的思想設計了一種獨特的pcb缺陷模式識別方法；並給出了針對各種pcb缺陷模式的特徵選擇與提取方法。 -
Thirdly, the object - oriented way of lre knowledge representation for causality, system structure, and models is presented, and an organization model of lre diagnosis knowledge for integration of deep and shallow knowledge based on the lre component structure and in the form of node knowledge base is given. and finally, the lre intelligent fault diagnosis theory and strategy, which utilize synthetically different kinds of diagnosis knowledge and multiple reasoning methods, such as rule - based, model - based, fuzzy - knowledge - based, and dynamic - knowledge - based reasoning methods, are discussed and developed. the results verified by the test - firing data and the simulated fault samples show that, the theory and methods proposed give a theoretical basis for the design and realization of practical lre fault diagnosis and health monitoring systems, and can be available for reference in the development of health monitori ng technique for reusable space transportation systems in the future
主要研究內容包括：系統闡述了發動機診斷知識的概念、類別和相互關系；研究發展了定性和定量、淺層和深層、模糊和動態等多種診斷知識的圖形和模型獲取方式；建立了因果、結構和模型等不同層次和類別的診斷知識的面向對象表示方法，以及以發動機的部件結構為基礎，以結點知識庫為組織形式，深淺知識相結合的診斷知識集成組織模型；研究發展了綜合多層次和多類別診斷知識，集成規則推理、模型推理、模糊推理和動態知識推理的發動機智能故障診斷理論和策略，並結合實際熱試車數據和故障模擬實例對所發展的理論、方法與策略進行了驗證。 -
In this paper, overall design philosophy and measure while diagonose the prefabricated substation using ann theory are defined, including the definition of fuzzy expression method for fault symptoms, the definition of typical fault collection and typical fault sign collection, the definition of the format of the learning sample and test sample, and the definition of fault diagnosis model formed in coordination by multi ann whose diagnosis principle are also described. a practical software using visual c + + 6. 0 and access2000 as developing instrument are developed on the basis of diagnosis principle put forward by this paper
本文確定了應用神經網路理論對箱式變電站進行故障診斷的總體設計思想和步驟：確定了監測數據的預處理模糊化方法；建立了箱式變電站典型故障集和典型故障徵兆集；確定了學習樣本的格式，完成了學習樣本的生成；確定了神經網路結構和參數，並對學習樣本應用本文的學習演算法進行了學習訓練，使誤差控制在給定范圍內；以集散監測診斷系統的思想，提出了由多個神經網路協同構成的多神經網路故障診斷模型，並論述了其診斷原理。 -
By redefining the cardinality of set, we establish the relationship between the domain / range ratio and the testability metric. pie model can help us doing white box test in unit test phase. based on the fault / failure model and conditional probability, a formula is found to get testability metric, with which we prove there is a max value in software testability metric
在單元測試階段可以運用pie模型幫助進行白盒測試，本文在軟體的錯誤/故障模型的基礎上，運用概率論中條件概率的相關知識，建立了可測試性的一個計算公式，並使用該公式證明了軟體的可測試度存在一個最大值。 -
After studying more deeply the fault tolerant algorithm and load balancing technology in redundant services, active load balancing is introduced into the redundant service system, and a novel fault - tolerant algorithm is built in this paper. under the conditions of guaranteeing the availability of redundant service system, the performance is effectively improved. the logic object model is based on corba and the prototype is implemented, additionally, system test results show the feasibility of the algorithm
本文在較深入地研究了冗餘服務中的容錯演算法、負載平衡的基礎上，通過在冗餘服務中引入主動負載平衡機制，提出了一種行之有效的冗餘服務容錯演算法；該演算法一方面能夠滿足客戶請求對可用性的要求，另一方面有效地提高了系統的性能；基於corba分佈計算通信平臺，本文還構建了該演算法的對象模型，並在此基礎上實現了一個原型系統，通過實例測試驗證了該演算法的可行性。 -
Then, because of the characteristic of complex engineering systems like fighters, such as modeling difficulty, multiplicity work situations, difficulty and expensiveness for test, a new kind of fast fault predictor is designed based on an improved k - nearest neighbor method, which neither need math model of system nor need data for train and knowledge
其次，針對殲擊機等復雜工程系統建模困難、工作情況多樣、試驗困難且代價高昂的特點，提出了一種改進k近鄰密度估計方法，設計了一種完全既不需要系統數學模型也不需要故障訓練數據和先驗知識的實時故障預報器。 -
A distinguishable faults test generation method for digital circuits is presented. the features of basic gate circuits and neural networks are used to establish the test model, and to generate the test patterns for given faults. the fault model and constrained circuit are studied. some strategies, e. g, the reduction of the size of neural network, are proposed in order to accelerate test generation process. the experimental results demonstrate that the algorithm proposed in the paper is effective
研究一種基於人工神經網路的能區分故障的數字電路測試生成方法，該方法利用電路基本邏輯門的特性和神經網路模型的特點，首先建立測試生成的神經網路模型，然後通過求解網路能量函數的最小值點獲得給定類型故障的測試矢量，其研究結果在可區分故障的測試生成方面提供了一種可能的新途徑 -
With the typical circuit fault model and conventional bit testing method, this paper researches into the validation technique of bit and smart fault detection which enhance the test effect of bit
本文結合數控系統典型電路故障模式和常規bit檢測方法，研究bit的驗證技術，並開展智能故障檢測方法的研究，以提高bit的檢測水平。 -
First, this paper introduces the conception of software test, testability, and some existent model used for analyzing testability. second, we analyze the merits and demerits of each model, as followed, after we particularly investigating the process of software fault leading to software failure, we put forward our improved scheme ? stdm and specify the process that it measure software testability more logically. at last, based on stdm we design and implement a stds ( software testability detecting system ), which can be used to measure the testability of c programs, and show the detected result in different level
本文首先介紹了軟體測試和可測試性的基本概念等用於檢測軟體可測試性的理論基礎，並詳細分析了一些理論檢測模型及各自的優缺點；接下來，針對這些可測試性檢測模型中所存在的問題，根據對軟體錯誤導致軟體失效過程的研究分析，本文提出了一種改進的解決方案stdm用於對軟體的可測試性進行量化檢測，文章在最後設計並實現了構建在此stdm模型基礎之上的一個軟體可測試性檢測工具，該工具能夠對c源程序進行可測試性檢測並得出量化結果數據，驗證了該模型的有效性。
分享友人