【摘要】：本文針對飛行器系統(tǒng)測試設(shè)備研制的要求，設(shè)計并研制了某型多通道數(shù)據(jù)存儲系統(tǒng)。該數(shù)據(jù)存儲系統(tǒng)主要完成飛行器飛行試驗過程中的多個通道模擬量及數(shù)字量信號的采集與存儲，并在試驗結(jié)束后通過回收數(shù)據(jù)器，導(dǎo)出試驗中采集的數(shù)據(jù)。 本文首先敘述了課題的來源及其研究的目的、意義，然后介紹了國內(nèi)外數(shù)據(jù)存儲系統(tǒng)的研究現(xiàn)狀及其發(fā)展趨勢。從飛行器測試所需的功能指標(biāo)出發(fā)，按照模塊化設(shè)計思想闡述了數(shù)據(jù)存儲系統(tǒng)的組成原理與實現(xiàn)方案，并詳細(xì)介紹了系統(tǒng)硬件關(guān)鍵技術(shù)與系統(tǒng)邏輯關(guān)鍵技術(shù)的研究與設(shè)計，，最后通過測試驗證了數(shù)據(jù)存儲系統(tǒng)的性能指標(biāo)，對該系統(tǒng)的進一步改進工作做出了展望。該數(shù)據(jù)存儲系統(tǒng)由地面設(shè)備、飛行器上設(shè)備構(gòu)成。地面設(shè)備包括地面綜合測試臺與地面轉(zhuǎn)接器；飛行器上設(shè)備包括采編器與存儲器。其中，地面綜合測試臺主要完成如上位機命令上傳、接收飛行器上設(shè)備高速下傳數(shù)據(jù)、通過輸出各種可編程的模擬/數(shù)字量來測試飛行器上設(shè)備工作情況等工作；地面轉(zhuǎn)接器負(fù)責(zé)轉(zhuǎn)發(fā)中繼上傳的命令與下發(fā)的數(shù)據(jù)，同時完成光纖信號轉(zhuǎn)接雙絞電纜與電流環(huán)信號的功能；采編器完成31路緩速模擬信號、1路高速模擬信號及1路PCM數(shù)字信號的采集與接收，在其內(nèi)部進行混合編幀后，一路轉(zhuǎn)換成LVDS串行數(shù)據(jù)下傳至地面設(shè)備，另一路直接送入存儲器存儲。系統(tǒng)以可編程邏輯器件FPGA為主控制器，通過接口型單片機提供系統(tǒng)與外界的接口并與FPGA通信以交換命令和數(shù)據(jù)。全系統(tǒng)硬件集成度高、功能靈活可變、工作可靠。存儲器以作為存儲介質(zhì)，容量較大且為非易失性存儲器，數(shù)據(jù)可長期保持，飛行參數(shù)可全程記錄。數(shù)據(jù)存儲系統(tǒng)采用高可靠性LVDS鏈路技術(shù)與地面綜合測試系統(tǒng)通信，傳送地面控制計算機下發(fā)的指令和高速下傳的實時采編數(shù)據(jù)、遠(yuǎn)程讀取存儲器數(shù)據(jù)。本文中詳細(xì)介紹了搭建高可靠性LVDS通信鏈路的主要設(shè)計要點與注意事項。 本數(shù)據(jù)存儲系統(tǒng)已應(yīng)用于飛行試驗。試驗結(jié)束后成功回收存儲器，并獲得數(shù)據(jù)。
[Abstract]:In this paper, a multi-channel data storage system is designed and developed to meet the requirements of the development of test equipment for aircraft system. The data storage system mainly completes the acquisition and storage of the analog and digital signals of multiple channels during the flight test of an aircraft. After the test, the data collected in the experiment is derived by a data recovery device. This paper first describes the source of the subject, the purpose and significance of the research, and then introduces the research status and development trend of the data storage system at home and abroad. Based on the functional indexes needed for aircraft testing, the principle and implementation of data storage system are described according to the modular design idea, and the research and design of system hardware key technology and system logic key technology are introduced in detail. Finally, the performance index of the data storage system is tested and the further improvement of the system is prospected. The data storage system consists of ground equipment and aircraft equipment. The ground equipment includes a ground integrated test table and a ground adapter; the aircraft equipment includes a collector and a memory. Among them, the ground comprehensive test bench mainly completes the work such as uploading the command from the upper computer, receiving the high-speed data from the equipment on the aircraft, and testing the working condition of the equipment on the aircraft by outputting various programmable analog / digital quantities. The ground adapter is responsible for forwarding the commands and data transmitted by the relay, and accomplishing the function of connecting the fiber optic signal to the twisting cable and the current loop signal at the same time; The acquisition and reception of 31 slow speed analog signals and 1 PCM digital signal are completed. After mixed framing, the data are converted to LVDS serial data and transmitted to the ground equipment. The other way directly into memory storage. The system takes the programmable logic device FPGA as the main controller, provides the interface between the system and the outside world and communicates with the FPGA to exchange commands and data through the interface microcontroller. The whole system hardware integration is high, the function is flexible and variable, the work is reliable. The memory is a storage medium with large capacity and non-volatile memory. The data can be maintained for a long time and the flight parameters can be recorded in the whole process. The data storage system uses the high reliability LVDS link technology to communicate with the ground integrated test system, transmits the instruction from the ground control computer and the real-time data collection and compilation of the high speed transmission, and reads the memory data remotely. In this paper, the main design points and points for attention of setting up high reliability LVDS communication link are introduced in detail. This data storage system has been applied to flight test. At the end of the experiment, the memory was recovered and the data was obtained.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP333

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