【作者】 赵晶晶；

【导师】 周洁敏；

【作者基本信息】 南京航空航天大学 ， 交通信息工程及控制， 2013， 硕士

【摘要】 现代飞机主要用到液压能、气压能和电能三种形式的二次能源。飞机二次能源的统一，或者说全电和多电飞机的发展，有助于提高飞机的可靠性、维修性、地面支持性能以及生存能力，减轻飞机重量。飞机多种电源自动切换配电技术是现代飞机供电系统中一个必不可少的组成部分，对飞机上各种电源进行实时、有效的监测是多种电源自动切换配电技术中的一项关键工作。只有在保证了各个电源都能稳定、可靠的工作的前提下才能在多种电源之间进行有效的切换。本文介绍了多电飞机上的电源类型及技术要求，分析了电压及电流监测的方法，研究了嵌入式Linux系统的原理及移植方法，同时研究了Qt图形界面设计方法。最终，论文设计了一种基于ARM9芯片的多电飞机电源监测系统，以直流28V电源为模型，对输出电压、电流进行实时的监测，对电源的各种运行状态进行指示，对异常情况进行报警与处理。软件方面，以嵌入式Linux操作系统为基础，通过基于Qt的图形界面的开发，为用户提供良好的人机接口，方便用户进行实时的查询和访问。更多还原

【Abstract】 Modern aircraft is mainly possessing three forms of secondary energy, including hydraulic,pneumatic and electrical energy. The unifying of these secondary energy using on aircraft, in otherword, the development of all-electric and aircraft using multiple electric, helps improving thereliability, maintenance, ground support for aircraft performance and viability, while reducing theweight of the aircraft.Automatically multiple power supply switching and distribution power technology on aircraft isan essential part of modern aircraft power supply system. A real-time and effective monitoring is acritical work in automatically multiple power supply switching and distribution power technology.Only in the guarantee of each power supply be stable and reliable, can effectively switching inmultiple power.This article describes the type of power and technical requirements of the aircraft using multipleelectric, analyzes the monitoring methods of voltage and current, discusses the principle andtransplant method of embedded Linux system, while researches the Qt graphical interface designmethod. Ultimately, this paper designs a power monitoring system of aircraft using multiple electricbased on ARM9chip, which using DC28V as a model for real-time monitoring of the output voltageand electric current, indicating the various operating status of the power supply. This kind of systemwill take alarm and deal with problems when abnormal situation happens. In software, based on theembedded Linux operating system, according to Qt-based graphical interface development, it providesto users with a good man-machine interface, and the convenience for real-time query and access.更多还原