本文選題：光電雷達(dá) + 電子部件�。� 參考：《南京航空航天大學(xué)》2016年碩士論文

【摘要】：機(jī)載光電雷達(dá)是戰(zhàn)機(jī)飛行及實(shí)戰(zhàn)中必不可少的設(shè)備,電子部件是光電雷達(dá)的核心部件,主要負(fù)責(zé)接收主計(jì)算機(jī)傳來的指令并控制光電雷達(dá)進(jìn)入不同的狀態(tài)。本文針對(duì)電子部件檢修中故障搜尋困難及工作量大的問題,設(shè)計(jì)了一套以Windows為平臺(tái)VC++為開發(fā)工具的電子部件檢測(cè)及故障診斷系統(tǒng)。論文首先介紹了故障樹的基本概念,重點(diǎn)介紹了故障樹的分析法,對(duì)故障樹分析法中的故障樹的建立、故障樹的定性和定量分析、底事件模糊失效率的求解等進(jìn)行了詳細(xì)的研究。為電子部件的故障樹分析提供了理論基礎(chǔ)。論文根據(jù)電子部件的組成原理及系統(tǒng)的主要功能和設(shè)計(jì)要求,提出了電子部件檢測(cè)及故障診斷系統(tǒng)的設(shè)計(jì)方案,設(shè)計(jì)并實(shí)現(xiàn)了檢測(cè)系統(tǒng)的硬件架構(gòu)。對(duì)系統(tǒng)硬件組成中頻率產(chǎn)生電路、展波電路、ARINC429電平轉(zhuǎn)換電路等主要模塊的設(shè)計(jì)進(jìn)行了詳細(xì)論述。文中設(shè)計(jì)了電子部件中主要模塊的檢測(cè)方案,對(duì)檢測(cè)系統(tǒng)的軟件整體結(jié)構(gòu)以及壓-碼檢測(cè)模塊、碼-壓檢測(cè)模塊、脈碼檢測(cè)模塊、匹配檢測(cè)模塊、只讀存儲(chǔ)器模塊、故障元器件定位模塊、自檢模塊等主要檢測(cè)模塊做了詳細(xì)的闡述。針對(duì)傳統(tǒng)的模塊連接法計(jì)算量大和運(yùn)行的空間過大的問題,論文提出將故障樹進(jìn)行預(yù)處理,利用壓縮原則和提取原則將故障樹大大的簡(jiǎn)化,將簡(jiǎn)化之后的故障樹進(jìn)行模塊化,使得可以對(duì)故障樹分塊處理。最后用節(jié)點(diǎn)化簡(jiǎn)法來轉(zhuǎn)換為BDD,提高了轉(zhuǎn)換的效率避免了轉(zhuǎn)換中帶來的大量運(yùn)算。以電子部件檢測(cè)及故障診斷系統(tǒng)為研究對(duì)象,全面分析了各模塊在邏輯上的結(jié)構(gòu)關(guān)系,以此為基礎(chǔ)建立了故障樹�；陔娮硬考髂K底事件失效率難以獲取的情況,將模糊集理論引入到故障樹分析中,利用權(quán)重專家的模糊評(píng)判來求取底事件失效率,對(duì)故障樹進(jìn)行定性及定量分析求出了重要度,為設(shè)備的故障診斷提供了技術(shù)參考。最后對(duì)所設(shè)計(jì)的電子部件檢測(cè)及故障診斷系統(tǒng)完成了軟件和硬件的聯(lián)調(diào)測(cè)試,測(cè)試結(jié)果證明了系統(tǒng)的性能優(yōu)越,達(dá)到了預(yù)期的目標(biāo),滿足了各項(xiàng)指標(biāo)以及功能要求。目前檢測(cè)系統(tǒng)已投入使用,具有很高的實(shí)用價(jià)值。
[Abstract]:Airborne photoelectric radar is the essential equipment in fighter plane flight and actual combat. Electronic component is the core part of photoelectric radar. It is mainly responsible for receiving the instruction from the main computer and controlling the photoelectric radar to enter different states. Aiming at the difficulty of fault searching and heavy workload in the maintenance of electronic components, a set of electronic component detection and fault diagnosis system based on Windows platform VC is designed in this paper. In this paper, the basic concept of fault tree is introduced, and the analysis method of fault tree is emphasized. The establishment of fault tree in fault tree analysis, the qualitative and quantitative analysis of fault tree are introduced. The solution of fuzzy failure rate of bottom event is studied in detail. It provides a theoretical basis for fault tree analysis of electronic components. According to the composing principle of electronic components and the main functions and design requirements of the system, this paper puts forward the design scheme of the electronic component detection and fault diagnosis system, and designs and implements the hardware structure of the detection system. The design of frequency generation circuit and ARINC429 level conversion circuit are discussed in detail. In this paper, the detection scheme of the main modules in electronic components is designed. The whole software structure of the detection system, the detection module of pressure-code, the module of code-voltage detection, the module of pulse code detection, the module of matching detection and the module of read-only memory are designed. Fault component location module, self-test module and other main detection modules are described in detail. In order to solve the problems of the traditional modular connection method, the paper proposes to preprocess the fault tree, simplify the fault tree by the principle of compression and extraction, and modularize the simplified fault tree. This makes it possible to block the fault tree. Finally, the node simplification method is used to convert to BDD, which improves the efficiency of conversion and avoids a lot of operation. Taking the electronic component detection and fault diagnosis system as the research object, the logical structure relationship of each module is analyzed, and the fault tree is established. Based on the fact that the failure rate of each module of electronic components is difficult to obtain, the fuzzy set theory is introduced into the fault tree analysis, and the failure rate of the bottom event is obtained by the fuzzy evaluation of the weight expert. The importance of fault tree is obtained by qualitative and quantitative analysis, which provides a technical reference for fault diagnosis of equipment. Finally, the software and hardware of the designed electronic component detection and fault diagnosis system are tested. The test results show that the system is superior in performance, achieves the expected goal, and meets the requirements of various indexes and functions. At present, the detection system has been put into use, and has a high practical value.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：V267

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 秦浩;徐景碩;李筆鋒;;基于VC++的ARINC429總線數(shù)據(jù)接收系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[J];價(jià)值工程;2011年24期

2 蘭蓉;范九倫;;三角模糊數(shù)上的完備度量及其在決策中的應(yīng)用[J];系統(tǒng)工程學(xué)報(bào);2010年03期

3 鄭國(guó)鋒;于勁松;劉浩;;基于PXI總線的光學(xué)雷達(dá)自動(dòng)測(cè)試系統(tǒng)研制[J];計(jì)算機(jī)測(cè)量與控制;2010年05期

4 許榮;車建國(guó);楊作賓;左曉勇;;故障樹分析法及其在系統(tǒng)可靠性分析中的應(yīng)用[J];指揮控制與仿真;2010年01期

5 周東華;胡艷艷;;動(dòng)態(tài)系統(tǒng)的故障診斷技術(shù)[J];自動(dòng)化學(xué)報(bào);2009年06期

6 ;Possibilistic entropy-based measure of importance in fault tree analysis[J];Journal of Systems Engineering and Electronics;2009年02期

7 申甲斌;滕以坤;;設(shè)備狀態(tài)監(jiān)測(cè)與故障診斷問題分析[J];設(shè)備管理與維修;2008年02期

8 金亮亮;姜斌;劉劍慰;;ITEM軟件在基于故障樹診斷中的應(yīng)用[J];控制工程;2007年S3期

9 胡圣武;吳宗慶;王宏濤;;基于三角模糊數(shù)的GIS的可靠性分析(英文)[J];地理空間信息;2007年01期

10 陳希林,傅裕松,尉洵楷;機(jī)載光電瞄準(zhǔn)系統(tǒng)的現(xiàn)狀及發(fā)展[J];紅外技術(shù);2004年02期

，

本文編號(hào)：1779180