【摘要】：機載推擺掃成像穩(wěn)定平臺是機載光電穩(wěn)定平臺中的一類,廣泛應(yīng)用于國防軍事領(lǐng)域,其光電視軸穩(wěn)定精度是衡量平臺性能好壞的最關(guān)鍵的一項技術(shù)指標(biāo),視軸穩(wěn)定精度越高,光電載荷的成像質(zhì)量就越高。光電穩(wěn)定平臺的設(shè)計是集光學(xué),電路和機械于一體的綜合性研究。本文機載推擺掃成像控制系統(tǒng)設(shè)計是以國家863項目為研究背景,根據(jù)項目中控制系統(tǒng)的動態(tài)指標(biāo)要求,進行基于VxWorks的機載推擺掃控制系統(tǒng)整體方案的設(shè)計和實現(xiàn),對機載成像控制系統(tǒng)的設(shè)計具有一定的參考價值。根據(jù)指標(biāo)要求本文從總體上考慮整個控制系統(tǒng)的組成,然后依次進行設(shè)計和實現(xiàn)。整個推擺掃成像控制系統(tǒng)的組成可以分為三部分,分別是硬件部分,它是由機械結(jié)構(gòu)和電路系統(tǒng)組成,嵌入式程序和上位機軟件組成的軟件部分以及二維轉(zhuǎn)臺控制算法研究部分。硬件部分中機械結(jié)構(gòu)的設(shè)計主要設(shè)計了幾個關(guān)鍵部件的機械結(jié)構(gòu)以及安裝接口結(jié)構(gòu),電路系統(tǒng)部分進行了底層電路電源供應(yīng)、電氣連接和底層驅(qū)動等電路部分的設(shè)計和搭建;軟件部分中嵌入式程序的設(shè)計主要基于VxWorks操作系統(tǒng)進行嵌入式控制程序的開發(fā),而上位機軟件的設(shè)計是為了調(diào)試和試驗操作方便,基于Visual C++開發(fā)了MFC控制界面;二維轉(zhuǎn)臺控制算法的研究和實現(xiàn)是為了穩(wěn)定擺掃成像視軸,提高擺掃成像控制系統(tǒng)的跟蹤精度,以獲得高質(zhì)量的實驗數(shù)據(jù)圖像。最后進行了總裝與桌面聯(lián)調(diào),接著進行整機的模擬飛行狀態(tài)下的道路跑車試驗,以驗證所設(shè)計的控制系統(tǒng)的可靠性和穩(wěn)定性,最后把整個控制系統(tǒng)安裝于直升飛機上進行試驗,試驗結(jié)果表明所設(shè)計的控制系統(tǒng)能夠穩(wěn)定可靠的完成項目的實驗要求,獲得了大量珍貴的圖像數(shù)據(jù),圓滿完成試驗項目。
[Abstract]:The airborne push-sweep imaging stabilization platform is a kind of airborne photoelectric stabilization platform, which is widely used in the military field of national defense. The stability accuracy of the optical television axis is the most important technical index to evaluate the performance of the platform. The higher the stability precision of the visual axis, the higher the stability accuracy of the optic axis. The higher the imaging quality of the photoelectric load. The design of photoelectric stabilization platform is a comprehensive study of optics, circuit and mechanism. In this paper, the design of airborne push-sweep imaging control system is based on the national 863 project as the research background, according to the dynamic index of the control system in the project, the design and implementation of the overall scheme of airborne push-sweep control system based on VxWorks is carried out. It has certain reference value for the design of airborne imaging control system. According to the requirements of the index, this paper considers the composition of the whole control system, and then designs and implements it in turn. The whole push-pendulum imaging control system can be divided into three parts: hardware, which is composed of mechanical structure and circuit system. The software part composed of embedded program and upper computer software, and the research part of two-dimensional turntable control algorithm. The design of the mechanical structure in the hardware part mainly designs the mechanical structure and the installation interface structure of several key components. The circuit system part designs and builds the circuit parts such as the power supply of the bottom circuit, the electrical connection and the bottom driver, etc. In the software part, the embedded program is designed based on the VxWorks operating system, and the upper computer software is designed for the convenience of debugging and test operation. The MFC control interface is developed based on Visual C. The research and implementation of the two-dimensional turntable control algorithm is to stabilize the imaging axis of pendulum scan and improve the tracking accuracy of the tilting imaging control system in order to obtain high-quality experimental data images. At last, the whole control system is installed on the helicopter to test the reliability and stability of the control system in order to verify the reliability and stability of the designed control system, which is combined with the total assembly and desktop adjustment, and then carries on the road sports test under the simulated flight condition of the whole machine. The experimental results show that the designed control system can stably and reliably complete the experimental requirements of the project, obtain a lot of precious image data, and complete the test project successfully.
【學(xué)位授予單位】：中國科學(xué)院研究生院(長春光學(xué)精密機械與物理研究所)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：V243

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