【摘要】：目前，測(cè)試技術(shù)向著自動(dòng)化、多功能和數(shù)字化的方向發(fā)展。被測(cè)試設(shè)備及其測(cè)試策略越來(lái)越復(fù)雜，被測(cè)試設(shè)備接口數(shù)量與測(cè)試資源接口數(shù)量之間產(chǎn)生了難以匹配的矛盾。此外，現(xiàn)在測(cè)試技術(shù)正在由專用化向通用化發(fā)展，虛擬儀器技術(shù)很好地解決了在轉(zhuǎn)型過(guò)程中硬件平臺(tái)的通用性與軟件驅(qū)動(dòng)的可移植性等問(wèn)題。 本文設(shè)計(jì)的便攜式維護(hù)輔助檢測(cè)儀（PMA）是基于PC/104-Plus總線和虛擬儀器技術(shù)，可自動(dòng)完成對(duì)機(jī)載電子設(shè)備的數(shù)據(jù)采集、處理與測(cè)試。同時(shí)，該檢測(cè)儀內(nèi)嵌交互式電子技術(shù)手冊(cè)（IETM），能夠滿足自動(dòng)測(cè)試設(shè)備數(shù)字化與無(wú)紙化的要求。 便攜式維護(hù)輔助檢測(cè)儀主要包括測(cè)試平臺(tái)和接口切換陣列適配模塊。測(cè)試儀平臺(tái)主要完成對(duì)機(jī)載電子設(shè)備的數(shù)據(jù)采集與處理，由基于PC/104-Plus總線的功能板卡自我堆棧而成，，符合便攜性和低功耗的要求。采用PC/104-Plus工業(yè)控制模塊，主要功能板卡分別完成模擬量的數(shù)據(jù)采集、數(shù)字量信號(hào)的檢測(cè)、電壓測(cè)量、電流測(cè)量、阻抗測(cè)量、1553B信號(hào)測(cè)量和RS422總線通訊。測(cè)試軟件編程平臺(tái)采用Windows XP結(jié)合NI的虛擬儀器的集成開(kāi)發(fā)軟件系統(tǒng)LabWindows/CVI。自制接口切換適配陣列模塊，該陣列模塊完成輸入信號(hào)的調(diào)理，測(cè)試節(jié)點(diǎn)與測(cè)試通道的切換的功能。接口適配模塊主要解決了被測(cè)試設(shè)備接口數(shù)量與測(cè)試資源接口數(shù)量不匹配的矛盾。 針對(duì)機(jī)載電子設(shè)備信號(hào)的特點(diǎn)，完成接口適配器中開(kāi)關(guān)矩陣的通道切換功能測(cè)試，調(diào)理電路測(cè)試和各板卡的功能性測(cè)試。經(jīng)測(cè)試，檢測(cè)儀系統(tǒng)實(shí)現(xiàn)了所有設(shè)計(jì)的功能，性能穩(wěn)定可靠，下一步將到現(xiàn)場(chǎng)與機(jī)載電子設(shè)備對(duì)接聯(lián)調(diào)。
[Abstract]:At present, testing technology is developing in the direction of automation, multi-function and digitalization. The equipment under test and its testing strategy are becoming more and more complex, and there is a contradiction between the number of interfaces between the tested equipment and the number of test resource interfaces. In addition, the testing technology is developing from specialization to generalization. Virtual instrument technology solves the problems of hardware platform generality and software-driven portability in the process of transformation. The portable maintenance assistant detector (PMA) designed in this paper is based on PC/104-Plus bus and virtual instrument technology. It can automatically complete the data acquisition, processing and testing of airborne electronic equipment. At the same time, the embedded interactive electronic technology manual (IETM), can meet the requirements of digitization and paperless of automatic test equipment. Portable maintenance assistant detector mainly includes test platform and interface switching array adaptation module. The test instrument platform mainly completes the data acquisition and processing of the airborne electronic equipment, which is made up of the self-stack of the function board based on PC/104-Plus bus, which accords with the requirements of portability and low power consumption. Using PC/104-Plus industrial control module, the main function board card completes analog data acquisition, digital signal detection, voltage measurement, current measurement, impedance measurement, 1553B signal measurement and RS422 bus communication respectively. Integrated Development of Virtual instrument based on Windows XP and NI on Test Software programming platform LabWindows/CVI. The self-made interface switch adaptor array module completes the adjustment of the input signal and the switch between the test node and the test channel. The interface adaptation module mainly solves the contradiction between the number of interface of test equipment and the number of interface of test resource. According to the signal characteristics of airborne electronic equipment, the channel switching function test of switch matrix in interface adapter, the test of conditioning circuit and the functional test of each board card are completed. After testing, the detector system realizes all the designed functions, and the performance is stable and reliable. The next step will be to connect and adjust with the airborne electronic equipment on the spot.
【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】：2012
【分類號(hào)】：TP302

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