【摘要】：二次電源的功能是將主電源電能轉換為另一種或多種形式的電能。伴隨著航空技術日新月異的迅猛發(fā)展,航空電子化程度越來越高,二次電源作為飛行器供電系統(tǒng)的重要組成部分,扮演著越來越重要的角色,其性能的優(yōu)劣將會直接影響到飛行器的技術性能和安全運行,故對二次電源性能測試顯得尤為重要。目前,二次電源的測試工作大多采用了手動測試,而這種工作方式程序繁瑣、效率極低,測試結果受人為因素的影響較大。因此,為了解決上述問題,根據(jù)實際需求,本文設計了一套機載二次電源自動測試系統(tǒng)。該測試系統(tǒng)主要應用于二次電源輸出端參數(shù)的自動化測試。全文以某飛行器二次電源的測試參數(shù)為研究對象,參考國內外相關的電源測試標準,結合了虛擬儀器技術和數(shù)字處理技術,提出了一套完整的二次電源測試系統(tǒng)方案。系統(tǒng)能夠完成二次電源輸出端11路輸出的參數(shù)測試,圍繞以主控計算機作為上位機和MSP430作為下位機為核心的混合式數(shù)據(jù)采集系統(tǒng),詳細論述了硬件系統(tǒng)和軟件系統(tǒng)的總體設計。全文采取了模塊化思想,為了實現(xiàn)硬件功能,對控制電路、通信接口電路、11路負載電路等逐次進行了方案論證。另外,軟件系統(tǒng)作為整體的靈魂也進行了深入的探討和研究,設計總體流程,上位機采用了圖形化編輯語言LabVIEW;下位機采用了MSP430芯片,應用C語言進行編程,實現(xiàn)數(shù)據(jù)的采集和處理。同時,根據(jù)生產(chǎn)過程中的實際需要,設計了一款專用測試柜,完成了對所有的硬件整機組裝。最后搭建實驗平臺,完成了軟硬件整機聯(lián)調。實驗數(shù)據(jù)和對比結果證明,基于虛擬儀器的自動測試系統(tǒng)與傳統(tǒng)的手動測試相比,具備可靠性高的同時,可以大大提高檢測效率及自動化程度,市場應用前景廣闊。
[Abstract]:The function of the secondary power supply is to convert the main power supply into another or more forms of electrical energy. With the rapid development of aviation technology, the degree of aviation electronization is becoming higher and higher. As an important part of the aircraft power supply system, secondary power supply plays a more and more important role. Its performance will directly affect the technical performance and safe operation of the aircraft, so it is particularly important to test the performance of secondary power supply. At present, manual testing is mostly used in the test of secondary power supply, but the working procedure is tedious, the efficiency is extremely low, and the test results are greatly influenced by human factors. Therefore, in order to solve the above problem, an airborne secondary power automatic test system is designed according to the actual demand. The system is mainly applied to the automatic test of output parameters of secondary power supply. Taking the test parameters of secondary power supply of a certain aircraft as the research object and referring to the domestic and foreign relevant power test standards and combining the virtual instrument technology and digital processing technology, a set of complete secondary power supply test system scheme is put forward in this paper. The system can test the output parameters of 11 channels at the output end of the secondary power supply. The design of the hardware system and the software system is discussed in detail around the hybrid data acquisition system with the host computer as the host computer and the MSP430 as the lower computer. In order to realize the hardware function, the control circuit and the communication interface circuit are demonstrated one by one. In addition, the software system as the soul of the whole has also been deeply discussed and studied, and the overall process has been designed. The upper computer has adopted the graphical editing language LabVIEW, the lower computer has adopted the MSP430 chip, and the C language has been used for programming. Data collection and processing are realized. At the same time, according to the actual needs of the production process, a special test cabinet is designed to complete the assembly of all hardware. At last, the experiment platform is built, and the hardware and software are connected with each other. The experimental data and comparative results show that compared with the traditional manual test, the automatic test system based on virtual instrument has high reliability and can greatly improve the detection efficiency and automation degree, and has a broad market application prospect.
【學位授予單位】：西京學院
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：V242.2

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