摘 要
航空电子系统在飞机中占有重要地位，伴随我国航空航天事业的发展，综合模块化航空电子系统（IMA）的功能检测和故障排查越发显示出其重要地位。自动检测系统的设计和研发也受到了国内外专家的高度重视，虚拟仪器技术的发展为我们提供了快捷、方便的技术手段，我们可以运用虚拟仪器技术灵活的组建各种自动测试系统以达到硬件资源和软件资源的共享和使用。
论文以中航工业某研究所航控板故障自动检测系统的研发为背景，设计和研发出了航控板故障自动检测系统。经过对比和研究国内外检测平台的搭建方法，本文提出了一种基于PXI总线、PXI机箱、光纤通信设备、NI板卡、Labview8.0专业开发板，及LM3S600的航控板故障检测系统通用平台。该平台能够实现设备的自动检测及故障定位，将以太网作为媒介传送故障信息至相关工作人员处，方便工作人员从远端完成设备故障状态确认、故障排查等工作。这对工程师完成故障排查及检修工作带来了极大的便利性，提高了人员工作效率，同时也为仪器设备的运行提供了良好的保障。
硬件设计，依据检测纲要和待测试项的具体指标设计出该测试平台。以NI板卡集成为硬件基础，平台设计包括基于Labview的上位机监控程序的开发、PXI机箱及光纤通信套件的选用、测试结果远端传输设计、传递信息媒介选择等。用于新老设备间进行匹配的电路板，我们自主设计了以 LM3S600 航控板为核心构成的电子负载板以完成该功能。
软件设计，在Labview8.0专业开发版的软件环境下，进行系统软件的设计与调试。软件界面能够直观反映设备的硬件配置及功能控制，能够使得状态机和系统有机的结合在一起，从而用Labview完成了软件主要框架的搭建工作。分层调用可以使测试子项程序模块得到动态控制，基于Access的故障定位查询，可快速准确的定位到故障点。同时系统可将检测到的数据进行分析，并将结果实时显示和储存。测试数据的远程传输我们可通过Labview的WebPublishing Tool得以实现。
该测试设备的成功研发与应用，为我国航电系统测试领域的发展起到了非常积极的作用。
关键词：Labview；IMA；串口控制；机箱；故障检测；状态机；NI板卡；
Abstract
The thesis discussed the hardware design of the loss measurement system which is mainly used to measure the loss in the ring resonant cavity of the laser gyroscope. The working principle of laser gyroscope briefly introduced, whereas the method of measuring the loss and reflector curvature radius of the resonant cavity and the phase, The thesis with the xi 'an institute of aviation navigation control board fault automatic detection research and development as the research background, the requirements of reference research and development and realize the air board malfunction automatically detect, includes equipment and PC interface and software of fault detection and the research and design of user interface through a large number of exquisite detection platform at home and abroad, provides methods and the premise, r&d bus, chassis, optical fiber communication, the board, professional development board, etc. Through such methods as said can realize some troubleshooting purpose, but the workload and the professional staff of operation, experts, this paper puts forward the ideas of the system automatically detects and Ethernet as a medium for transmission to the relevant staff, has a staff of illness failure, reduce the workload and improve work efficiency, increase the reliability.
For equipment, exquisite detection program and prepare the test requirements of the project, developed a detection system for NI equipment troubleshooting system, platform research and development of general computer control program of research and development, the chassis, and the choice of optical fiber, convey information media, in the process of old and new equipment to replace the electronic load can plate as a vehicle for the new and old system.
Systems; In a stable Labview8.0 development platform, on the basis of the system software development and testing, use and control in software and equipment, can make the state machine and system organic unifies in together, completed the construction of the main framework of software work, dynamic adjustment can test the item hierarchical control module; By the test outline developed troubleshooting, automatic rapid positioning to that point failed; The test data and the analysis of system at any time can show or stored; Can transmit data remote transmission.
Through hands-on experiments to research and development of system and the trial, the trial confirmed system is relatively stable and up to the start of all completed the expected functions, improve the efficiency of the aircraft fault detection, reduce the workload, the success of the product research and development to promote rapid progress of our country's aerospace industry.
Key Words:Labview; The remote control; The case; Fault detection
目 录
第1章绪论 8
1.1 选题背景及意义 8
1.2 国内外研究现状 9
1.3 本文研究内容 10
1.4 论文章节安排 11
第2章相关技术概述 12
2.1 虚拟仪器的基本概念 12
2.2 虚拟仪器的系统构成 12
2.2.1 虚拟仪器的硬件平台 13
2.2.2 虚拟仪器的软件平台 14
2.3 虚拟仪器的特点 15
2.4 LABVIEW 开发平台 16
2.4.1 LabVIEW 的功能与特点 16
2.4.2 LabVIEW 的程序设计过程 17
2.5 综合模块化航空电子系统理论 18
2.5.1 航空电子系统体系结构模型 18
2.5.2 IM
