【正文】 mage proceccing of puter,we can easily implement signal analysis,data processing,store and graphicalized strategy that bined with VI(Vitual Instrument) is the developing direction of the generation of ATS (Automatic Test System). In the thesis,we study and analyze the system structure of VI,and study the ATS based on virtual instrument which has PCDAQ in its system meet the request of system,we design and implement the analog data acquisition board the digital data acquisition on that we write respective driver program and application great extend we make the software and hardware transplantable and enhance the expandability of the system. The thesis describles the ATS based on VI in detail and verifies its function by its application in armored car ATS system. Keywords: virtual instrument automatic test system data acquisition software structure III 目錄 摘要 .................................................................................................................................. I ABSTRACT.....................................................................................................................II 目錄 ............................................................................................................................... III 第一章 引言 .................................................................................................................... 5 課題背景及意義 ................................................................................................. 5 自動測試系統(tǒng)（ ATS）介紹 ................................................................................. 5 ATS的新發(fā)展 ............................................................................. 7 ATS的現(xiàn)狀和面臨的問題 .................................................................. 8 虛擬儀器介紹 ..................................................................................................... 9 本文的主要內(nèi) 容 ................................................................................................11 第二章 基于虛擬儀器的 ATS結(jié)構(gòu)設(shè)計 .............................................................................. 8 基于虛擬儀器的 ATS的體系結(jié)構(gòu) ......................................................................... 8 器 ATS ....................................................................... 9 PCI總線式的虛擬儀器 ATS ..................................................................... 10 VXI總線式的虛擬儀器 ATS ..................................................................... 10 PXI總線式的虛擬儀器 ATS ..................................................................... 10 PCI總線式虛擬儀器 ATS結(jié)構(gòu)設(shè)計 .....................................................................11 數(shù)據(jù)采集技術(shù)介紹 .................................................................................... 12 虛 擬儀器 ATS軟件組成 .......................................................................... 17 第三章 基于虛擬儀器的 ATS實現(xiàn) ................................................................................... 18 裝甲車電子裝備 ATS系統(tǒng) 簡介 .......................................................................... 18 信號發(fā)生 /計數(shù)模塊 .......................................................................................... 21 信號發(fā)生電路 .......................................................................................... 21 計數(shù)電路 ................................................................................................. 22 模擬信號采集模塊 ............................................................................................ 25 信號調(diào)理電路 ........................................................................................ 26 采樣電路 ............................................................................................... 30 觸發(fā)電路 ............................................................................................... 30 第四章 軟件設(shè)計 ........................................................................................................... 32 ATS的軟件系統(tǒng)的結(jié)構(gòu) ..................................................................................... 32 測試管理層 ............................................................................................ 32 虛擬儀器功能模塊層 .............................................................................. 33 儀器驅(qū)動層 ............................................................................................ 33 I/O接口驅(qū)動層 ..................................................................................... 33 儀器驅(qū)動層軟件設(shè)計 ........................................................................................ 34 儀器驅(qū)動程序的組成 .............................................................................. 34 儀器驅(qū)動程序的要求 .............................................................................. 35 虛擬儀器功能層的實現(xiàn) ..................................................................................... 36 虛擬儀器自動測試系統(tǒng)的實例 ........................................................................... 40 車長 DIO翻轉(zhuǎn)電壓測量 ........................................................................... 41 串口 電氣性能測量 ................................................................................... 42 第五章 論文總結(jié)與展望 ................................................................................................. 43 IV .......................................................................................................... 43 ................................................................................................... 43 致謝 ............................................................................................................................... 44 參考文獻(xiàn) ........................................................................................................................ 44 引言 5 第一章 引言 課題背景及意義 隨著 現(xiàn)代科學(xué)技術(shù)的飛速發(fā)展，大量高新技術(shù)成果已經(jīng)應(yīng)用到武器裝備系統(tǒng)，使武器裝備日益復(fù)雜。為了滿足系統(tǒng)要求，我們自行設(shè)計了模擬信號采集卡和數(shù)字信號采集卡，并在此基礎(chǔ)上分模塊編寫各自的驅(qū)動和功能層應(yīng)用