文档介绍：南京航空航天大学
硕士学位论文
飞机液压试验台监控系统的设计与实现
姓名:颜建峰
申请学位级别:硕士
专业:电路与系统
指导教师:吴宁
20070101
南京航空航天大学硕士学位论文
摘要
液压系统试验台监控系统是某型号高教机液压系统地面模拟试验台的重要
子系统。在试验过程中,监控系统实时监测相关测控点的全部数据,显示现场状
态,并输出各类控制信号对执行机构进行手动/自动控制。该系统具有测量精确、
实时性强、易于扩展和稳定性高等优点,对于验证飞机液压系统功能、检验各部
件在各种工作状态下的安全可靠性以及评价液压系统抗故障能力,有着举足轻重
的作用。
论文的主要工作是在分析了飞机液压试验台中各种信号监控需求的基础上,
研制符合试验标准的监控系统。论文首先介绍了液压试验台各部分的组成情况,
并根据功能需求,给出了监控系统的硬件构成和设计要点,以研华工控机及数据
采集、模拟量输入/输出、信号转接、开关量输入/输出等设备卡构成硬件系统。
论文重点介绍了监控系统的软件设计与实现过程,以 Microsoft Visual C++ 为
开发工具,运用多线程技术、双缓冲技术、模块化设计思想以及硬件中断机制实
现了连续实时数据采集系统、精确定时和全试验过程的实时控制,并对各功能模
块具体实现的设计思想与流程做了详尽的论述。
经测试,监控系统各项性能指标均达到了要求,现已成功应用于飞机液压系
统的各项试验中。

关键字:液压系统,实时采集,Microsoft Visual C++ ,过程控制

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飞机液压试验台监控系统的设计与实现

Abstract
The monitoring system is an important part of the test bench for one basilic
advanced training plane’s hydraulic system. In testing, monitoring system real-time
monitors correlation data, demonstrates scene’s condition, and outputs each kind of
control signal to the implementing agency automatically/manually. The system
supports accurate measurement, powerful real-time performance, strong expansibility
and high stability. It is quite helpful to validate functions of the plane’s hydraulic
system, prove the security and reliability ponents in each working state, and
evaluate the ability of resisting malfunctions.
This paper mainly discusses the design of the monitoring system based on
analyzing the test requirements. The paper firstly introduces parts of the test bench in
brief, and provides the hardware structure and the designing points. In this system,
Advantech’s puter, the data acquisition card, the analog input/output card,
the digital input/output card constitute hardware system. The paper chiefly discusses
the software designing and realizing. In this system,using Microsoft Visual C++
as a development, adopting multithread techniques, double-buffering techniques, the
idea of modular design and mechanism