軟體故障率 的英文怎麼說
中文拼音 [ruǎntǐgùzhànglǜ]
軟體故障率
英文
software failure rate- 軟 : Ⅰ形容詞1 (質地不硬) soft; flexible; supple; pliable 2 (柔和) soft; mild; gentle 3 (軟弱) we...
- 體 : 體構詞成分。
- 故 : Ⅰ名詞1 (事故) event; incident; happening; accident 2 (原因) cause; reason 3 (朋友; 友情) fr...
- 障 : Ⅰ動詞(阻隔; 遮擋) block; hinder; obstruct Ⅱ名詞(遮擋物) barrier; block; obstacle
- 率 : 率名詞(比值) rate; ratio; proportion
- 軟體 : [計算機] software軟體包 (程序包) software package; 軟體程序 software program; 軟體跟蹤方式 soft...
- 故障率 : fault rate; failure rate故障率曲線 bathtub curve; 故障率數據 failure-rate data; 故障率水平 failure-rate level
- 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
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Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中,採用高速的dsp處理器,實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法,實現了大電流信號的驅動輸出;採用485總線技術,組建了裝置主機與多探測器之間的主從式通訊網路,實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路,採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術,實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元,設計了人機信息交互的介面;採用了模塊化的軟體設計方法,開發了裝置主機及探測器的軟體程序。Abstract : in the validation testing of software, the analysis of failure data can help to understand the failure distribution in the software. based on the analysis result, the corrective actions and proper approcahes can be taken to improve the detected efect rate of software tesing
摘要:在軟體的確認測試中,如果能夠對故障數據進行相關的分析,就可以實時地了解被測軟體的故障分佈情況,並採取相應的措施和方法,從而提高軟體測試的缺陷發現率。This thesis aims at discussing the model of manufacturing defects, the principles of soft and hard faults induced by manufacturing defects, the effects of soft fault on circuit reliability and yield and the relationship between yield loss and reliability decrease caused by manufacturing defects. the author ' s main contributions are as following : reliability and yield are two significant factors to semiconductor manufacture. based on the principles of the manufacturability engineering, the thesis discusses the effects of the manufacturing defect on the functional yield, parametric yield and the reliability for ics, and abstracts geometric models from actual chips
本文對集成電路製造缺陷模型、由製造缺陷導致的軟、硬故障的作用機理、軟故障對電路可靠性和成品率的影響以及由製造缺陷導致的電路成品率的損失和可靠性下降之間的關系進行了系統的研究,主要研究結果如下:可靠性和成品率是影響半導體生產的兩個主要因素,本文首先從集成電路的可製造性工程理論出發,討論了製造缺陷在影響集成電路功能成品率、參數成品率和可靠性方面的作用。A lot of papers about the report of probabilistic risk assessment of daya bay npp and system manuals has been read by the author and let as the basis. in this paper, based on the reliability analysis methods of failure mode and effect analysis and failure tree analysis, according to the result of event tree analysis of probabilistic risk assessment report of daya bay npp, the top events of the fault trees of reactor protection system and the success criteria were established. by using risk - spectrum procedure, the unavailability and the minimal cut - sets ( mcs ) of the fault trees were obtained
本文在閱讀了大量的大亞灣核電站pra報告和各種系統手冊等資料的基礎上,採用fmea (故障模式和影響分析)和fta (故障樹分析)可靠性分析方法,依據大亞灣核電站pra事件樹分析的結果,建立了以緊急停堆失效和專設安全設施驅動失效為頂事件的故障樹,利用risk - spectrum程序,對所建的故障樹進行定量分析,計算,得到系統故障樹的失效概率和最小割集,從而為大亞灣核電站可視化風險分析軟體提供數據支持。The fault diagnosis software of power supply system applying the expert system theory is programmed under vb 6. 0. while the fault diagnosis of electric load manage center and solid state power controller is based on the neural network theory, whose software is realized through adopting the neural network toolbox of matlab 6. 1 in vb 6. 0
對于飛機供電系統,在vb6 . 0中編寫了基於專家系統理論的故障診斷軟體;對于電氣負載管理中心和固態功率控制器,其故障診斷軟體則基於神經網路理論,通過在vb6 . 0中調用matlab6 . 1的神經網路工具箱完成。Nevertheless, as the simulating technology involves the integrated high - techs and knowledge of computers, networks, images and graphs, multi - medias, software engineering, information processing and automated control, the simulating system is affected by its own characteristic - featured conditions, running environment and training requirements, thus yielding many problems that exist in our marine engine room simulators being currently used. for example : the mers system has poor working stability and high rate of breakdown ; its viewing device is yet to be updated, as the true aspect of the engine room can not be seen during training ; the teaching display board can not display the running state of the system with 3 - d animations, neither can it change the dynamic flow chart, etc. the afore - said problems have been greatly retarding the seafaring teaching and training, and restricting the application value of mers, as a consequence
但是,由於輪機模擬器模擬技術綜合了計算機、網路技術、圖形圖像技術、多媒體、軟體工程、信息處理、自動控制等多個高新技術領域的知識,模擬系統受到了其特有的制約條件、運行環境和訓練要求的影響,現行輪機模擬器在應用中還存在著許多問題,如:輪機模擬器系統工作穩定性差,故障率高;視景裝置落後,訓練中見不到機艙真面目;示教板不能用三維動畫來顯示設備運行狀態,不能更換動態流程圖等。Arid an algorithm of parity residuals and the theory of residual vector probability - data fusion are used for detecting the abrupt change failure of srfcs, especially the failure of actuators ' failures and single control surface ' s failures
該系統是按照軟體工程規范,採用等價空間法和殘差向量的概率信息融合法研製和開發的,不僅能對飛行控制系統的突變故障作動器卡死故障和控制舵面損傷故障進行實時檢測和隔離,而且具有良好的用戶界面。Based on research of theory and methods, this thesis presents design scheme of the dynamic fault tree analysis platform dfta and implement the platform ; practices a dynamic fault tree analysis example of boeing 707 plane engine oil indication system and alarm system on the platform and gets top event occurrence rate 、 minimal cut sequence 、 probability importance sequence 、 structure importance sequence and critical importance sequence and presents system improvement suggestion based on the analysis results
在理論方法研究的基礎上,本文提出了動態故障樹分析平臺dfta的設計方案,並進行了實現;利用該軟體對波音707飛機發動機滑油壓力指示和警告系統進行了動態故障樹實例分析,得到了頂事件發生概率、最小順序割集、概率重要度排序、結構重要度排序、關鍵重要度排序等分析結果,並根據上述分析結果提出了系統設計改進建議。But indeed a good many of problem exist in the present situationof the management. according to this, this paper use the object of the borer. according to the reliability theory established the failure tree of borer system, calculated the reliability parameter of the system and every components. processed the instantaneous reliability analysis of the borer. received the eliability function of the components. based on this, established the maintain and management modeland ecnomye stimate model. and worked out the internet applications, improved the management efficiency of the employed facility, economized the devotion. the maintain and management of the borer achieved to the scientific and comunication, improved the management efficiency, possess great value of application
針對這種情況,本文以石油鉆機為研究對象,利用可靠度理論,確立了石油鉆機的故障樹,計算了系統及各基本部件的可靠性參數,對鉆機系統進行了瞬時可靠度分析,同時,確定了石油鉆機系統的可靠度指標,得到了石油鉆機各基本部件的可靠度函數,根據可靠度函數建立了以可靠度為準則的維修管理及經濟評價模型,並編制了相應的應用軟體,提高了現場設備管理的效率,節約了經濟投入,使石油鉆機系統的維修管理達到了科學化、信息化的水平,提高了管理效率,具有較高的應用價值。Full bridge phase - shifted zero - voltage - switched converter ( fbps - zvs converter ) is a successful implementation for soft - switching and is easy for usage in dc / dc converter. the core technique to reach digitalization is dsp technique. in order to reach both high frequency and digitalization of converter, a fbps - zvs converter based on dsp control is proposed in this paper the converter worked on the high frequency of 150k. periphery hardware circuit is simple and its bulk is small. the converter realizes soft - switching over half load and get a high efficiency. it achieves the aim of digital control and error protect
實現數字化的核心是dsp技術。本文立足於將開關電源的高頻化與數字化相結合,具體研究內容為一種基於dsp控制的移相全橋軟開關zvs變換器,該變換器工作于較高的開關頻率( 150k ) ,外圍硬體電路結構簡單、器件少、體積小;在半載以上實現了開關管的zvs開關,取得了較高的變換效率;實現數字化控制與故障保護,變換器取得了較好的性能效果。The feeder net model for distribution automation is built based on the nod information matrix and the line information matrix, and the nods represent the switches and the fault indicator in the distribution net. the method of fault locating offered by this paper called line fault probability method, which locates fault by calculating the fault probability of line in the net. this paper also provides a method called volts d. c. for restoration and offers the regulation of restoration
採用節點、支路信息矩陣來描述配電網路,形成面向故障自動化處理的網路數據結構;提出了基於支路故障概率的故障定位演算法,並結合短路電流特性判據法來定位故障支路;在定義直流等值網的基礎上,提出了優化供電恢復的直流電壓降法;開發了配電網故障自動處理軟體系統,並用於實際配電自動化工程中。As a basic energy of our counrry. the determination of calorific value of coal is very important to the excavation and efficient exploitation of energy. the traditional method of determination has many complicated coursese and always needs much work made by man. so the research of automatic calorie meter makes significentthrough the detailed analysis of principle and method of measurement, an automatic measuring instrument controlled by microcomputer is designed in this paper in order to take the place of manual operations. the instrument can almost do every operation by itself, such as the control of experimental progress, data collection, data computation and the printout of experimental results. furthermore, a distributing system of measurement building on field bus is designed too. under the control of personal computer, several calorie meters can work independently and simultaneously. on the other hand, a powerful measuring and control software is developed using visual computer language - visual basic and visual c + +
設計不但能自動完成整個實驗過程的控制和實驗數據的自動採集,並且能自動完成數據計算和實驗結果的列印輸出。在此基礎上,本文進一步設計出了基於現場總線技術的分散式測試系統,將多臺自動熱量計置於一臺pc機的控制之下,極大地提高了測量的效率。並利用可視化語言visualbasic和visualc + +設計出功能強大的系統監控軟體,以動畫和實時曲線的形式動態模擬出整個實驗的進程(包括故障顯示) ,使得整個測量工作自動化、智能化。It can also determine the fault spot and reason. this technology has been used in some technological fields and proved efficient. it has promoted the revolution of maintance system and the historial protection is replaced by preventive maintenance. with this technology, we can improve the reliability of machine and decrease the maintance fee. recently, reserch has pick up a fervent pace in the area of fault diagnosis of electrical machines. the paper simply analyzes the fault reason of electrical machines, stressly describes and explores the methods of condition monitoring and fault diagnosis such as partial discharge, stator current, rotating speed, vibration etc. fault prognosis is now include diagnostic feature, reason, spot. prodigious improvement in signal processing hardware and software has made this possible. primarily, these techniques depend on locating specific harmonic components of the fault. these harmonic components are usually diffirent for diffirent types of faults. automated tools such as fuzzy logic based system is also simply presented in the paper
本文從絕緣結構的故障機理入手,以絕緣結構故障的典型特徵? ?局部放電為研究對象,重點討論局部放電的在線監測方法、適用場合併比較它們的優缺點;在分析籠型異步電機轉子斷條在線監測的定子電流監測方法后,根據其缺陷,本文探討了溫升不平衡法、希爾伯特變換數字濾波、小波包分析法的原理及優點;以電機軸承、氣隙偏心等故障為研究對象,通過對電機振動和轉速頻率的檢測,診斷電機的故障類型;本文的重點工作是將人工智慧技術中的模糊技術應用於電機的狀態監測和故障診斷中,力求使電機故障診斷更接近人工智慧化;最後,本文對電機狀態監測和故障診斷系統進行了硬體和軟體初步設計,為實現預測維修提供了有效的技術手段。According to the phenomenon that some vehicles may come cross the starting difficulty after the engine running a period of time, the paper firstly analyzes, the practical meaning of engine cold start parameter for automatic testing and diagnostic systems, according to dempster - shafter amalgamation rule, requirement of proof, aining at concrete fact of breakdown diagnosing for engine cold start. conforming basic probability distribution function, it presents concrete realization for decision - making amalgamation arithmetic, completes for development of soft and hard wares of automation synchronous messure of engine cold start " s parameter
針對發動機運行一段時間后,部分車輛就會出現起動困難的故障現象,本文首先分析了發動機冷起動參數自動測試與診斷系統的實際意義,根據dempster - shafer證據理論的融合規則、要求,針對發動機冷起動故障診斷的具體實例,構造了基本概率分配函數,給出了決策層融合演算法的具體實現方法,完成了發動機冷起動參數自動同步測試的軟體硬體開發。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。This project support scholar of this field inquire about materials related to cableway, still realize conveniently, swiftly in this system for the editor, management of the file of cableway - design at the same time, have offered the data base for designing, develop cableway circuit vertical section draw, cableway loading orbit draw, cableway circuit calculate, etc. application program of the project
隨著計算機軟硬體技術的發展,加強計算機技術在工程索道中的應用可以提高我們的工作效率,為我們帶來效益。計算機在工程索道中的應用十分廣泛,如信息查詢、故障診斷專家系統、輔助設計軟體、索道課程cai等等,這些都在等待著我們索道工程師努力去探索、實現。Since that the choosing line hardware for the neutral ungrounded system has just passed part of the dynamic simulative test, matlab software was chosen to do a lot of simulative tests on single phase - to - grounding fault. and the simulative sampling ratio is almost the same as the hardware ' s. because there is a low wave filter in the hardware, i choose the db15 wave - let to carry out the multidimensional decomposition on the sample by the method of one dimension discrete wavelet in order to obtain low frequency signal including the high frequency transient information on single phase - to - grounding fault
鑒于實驗室已有的小電流接地系統選線硬體的研製只通過了實驗室里的動模試驗,故選用matlab軟體對小電流接地系統進行大量的單相接地故障模擬試驗,模擬的采樣率和硬體基本一致,由於硬體中帶有低通濾波器,故在進行采樣數據的morlet小波分析時先採用db15小波對采樣進行一維離散小波的多尺度分解,使得分解得到的低頻信號剛好包括了小電流接地系統單相接地故障時的暫態高頻信息,然後對這一信息再繼續進行小波演算法分析,分析結論表明利用變換后的實部、虛部和模值能夠較準確的實現單相接地故障時的故障選線和暫態高頻分量的提取。With the development of power network and computer technology, the software on fault calculation and protection relay setting is required to have better calculation speed, higher calculation efficiency and better - visualized character
隨著電力系統規模的不斷擴大及計算機應用技術的不斷發展,對電力系統故障分析及繼電保護整定軟體在計算速度、計算效率、可視化等方面都提出了新的要求。Furthermore, this paper provides several forms of failure ratio in the operating phase taking the difference between the testing profile and the operating profile into account according to the concepts of the testing reliability and the operating reliability, then analyzes theoretically the difference between the testing reliability and the operating reliability based on the changing trends that the failure of decreasing and first increasing and the decreasing of the failure ratio, and makes a research on the influence of the two types of reliability on the software releasing time
在此基礎上給出了考慮測試剖面與運行剖面差別的幾種運行階段失效率的形式,然後根據失效率遞減的和先增后減的變化趨勢,從理論上分析了測試可靠性與運行可靠性的差別,研究這兩種可靠度對軟體發布時間的影響。絕大多數軟體可靠性增長模型都假設軟體故障服從同一種分佈。Software maintenance is an important phase of software life cycle, rsms ( remote software maintenance system ) based on c / s ( client / server ) structure, aimed at collecting trouble, dealing with trouble and diagnosing trouble, using internet / lan to send these information can promote the efficiency of software maintenance, reduce the expense of software maintenance and shorten the time of software maintenance
隨著各行業自動化、信息化的建設,專業軟體的維護成為軟體生命周期中花錢最多耗時最長的一個階段,為了提高軟體的維護效率、減低維護費用和減輕用戶的負擔,我們提出了一種以故障收集、處理和診斷為核心的基於c / s的遠程軟體維護方法。分享友人