基于VxWorks的机载推摆扫成像控制系统设计

发布时间：2019-04-30 19:44

【摘要】：机载推摆扫成像稳定平台是机载光电稳定平台中的一类,广泛应用于国防军事领域,其光电视轴稳定精度是衡量平台性能好坏的最关键的一项技术指标,视轴稳定精度越高,光电载荷的成像质量就越高。光电稳定平台的设计是集光学,电路和机械于一体的综合性研究。本文机载推摆扫成像控制系统设计是以国家863项目为研究背景,根据项目中控制系统的动态指标要求,进行基于VxWorks的机载推摆扫控制系统整体方案的设计和实现,对机载成像控制系统的设计具有一定的参考价值。根据指标要求本文从总体上考虑整个控制系统的组成,然后依次进行设计和实现。整个推摆扫成像控制系统的组成可以分为三部分,分别是硬件部分,它是由机械结构和电路系统组成,嵌入式程序和上位机软件组成的软件部分以及二维转台控制算法研究部分。硬件部分中机械结构的设计主要设计了几个关键部件的机械结构以及安装接口结构,电路系统部分进行了底层电路电源供应、电气连接和底层驱动等电路部分的设计和搭建;软件部分中嵌入式程序的设计主要基于VxWorks操作系统进行嵌入式控制程序的开发,而上位机软件的设计是为了调试和试验操作方便,基于Visual C++开发了MFC控制界面;二维转台控制算法的研究和实现是为了稳定摆扫成像视轴,提高摆扫成像控制系统的跟踪精度,以获得高质量的实验数据图像。最后进行了总装与桌面联调,接着进行整机的模拟飞行状态下的道路跑车试验,以验证所设计的控制系统的可靠性和稳定性,最后把整个控制系统安装于直升飞机上进行试验,试验结果表明所设计的控制系统能够稳定可靠的完成项目的实验要求,获得了大量珍贵的图像数据,圆满完成试验项目。
[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.
【学位授予单位】：中国科学院研究生院(长春光学精密机械与物理研究所)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V243

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