航电仿真评估系统数据实时显示技术研究

发布时间：2018-06-29 05:34

本文选题：航电系统 + 数据解析　；参考：《中国民航大学》2015年硕士论文

【摘要】：作为现代民用飞机重要组成部分,航空电子系统能够实现机载信息的高度融合和系统资源的交联共享,协调其他系统共同完成飞行任务。为缩短研制周期,降低资源成本,航空电子系统开发伴随着一系列的功能测试与仿真试验。在仿真试验中,航电仿真评估系统通过搭建评估平台,模拟各系统的交联关系、功能逻辑及通信过程。基于特定的仿真评估系统,本文研究设计了数据实时显示与监测系统,实现对评估系统中所有交互数据的实时采集、在线解析、综合显示与存储记录。首先,根据系统的设计需求,分析了航电仿真评估系统中各子系统之间的功能逻辑关系,确定了系统之间的交互信息内容。其次,设计了系统软件架构。基于系统交互关系,提出数据实时显示与监测系统的整体设计方案,并对数据采集、数据解析、数据显示、数据离线分析等具体功能模块及通信过程进行详细研究。为提高系统实时性,采用多媒体定时器完成高精度数据采集,采用多线程技术将系统任务独立为多个线程进行操作。离线分析环节中,利用NNAF数据挖掘算法对系统数据进行异常分析。最后,开发友好人机交互界面,并应用在航电通信导航适航评估验证中。结果表明本系统能够实时监测待评估系统数据信息,有效评估系统运作性能及运行状态,为航空电子系统研发与评估提供了重要的数据输出和理论依据。
[Abstract]:As an important part of modern civil aircraft, avionics systems can achieve high level integration of airborne information, cross-linking and sharing of system resources, and coordinate other systems to complete flight missions together. In order to shorten the research cycle and reduce the resource cost, avionics system development is accompanied by a series of functional tests and simulation tests. In the simulation experiment, the avionics simulation evaluation system simulates the cross-linking relation, function logic and communication process of each system by setting up an evaluation platform. Based on a specific simulation and evaluation system, a real-time data display and monitoring system is designed in this paper, which can collect, parse, display and store all the interactive data in the evaluation system in real time. Firstly, according to the design requirements of the system, the functional logic relationship among the subsystems in the avionics simulation evaluation system is analyzed, and the interactive information content between the systems is determined. Secondly, the system software architecture is designed. Based on the interaction of the system, the whole design scheme of the real-time data display and monitoring system is put forward, and the specific function modules and communication process such as data acquisition, data analysis, data display, data off-line analysis and so on are studied in detail. In order to improve the real-time performance of the system, the multimedia timer is used to complete the high precision data acquisition, and the multithread technology is used to operate the system task independently as multiple threads. In the off-line analysis, the NNAF data mining algorithm is used to analyze the anomaly of the system data. Finally, the friendly man-machine interface is developed and applied to the evaluation and verification of avionics navigation and airworthiness. The results show that the system can monitor the data information of the system in real time and effectively evaluate the operating performance and operating state of the system. It provides an important data output and theoretical basis for the development and evaluation of avionics system.
【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V243;TP391.9

【参考文献】