Design and development of real-time monitoring system for civil aircraft flight test data based on satellite communications
陈家益 1刘涛 1冯灿 1孙科 1李成浩1
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作者信息
1. 中国商飞公司民用飞机试飞中心,上海 200231
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摘要
试飞数据实时监控系统是保证民机试飞安全、确定飞行试验有效性的重要手段,通常采用S波段遥测方式将数据下传至地面,监控半径一般不超过300 km,且数据质量易受到飞行姿态、高度和空域地形影响.基于客户端/服务器(Client/Server,简称C/S)架构设计研发了新的试飞数据实时监控系统,该系统采用卫星进行空地通信,包含服务端和客户端.服务端部署于机载环境,用于实时侦听来自地面客户端的数据订阅指令;客户端采用WPF(Windows Presentation Foundation)框架,利用模型-视图-视图模型(Model-View-ViewModel,简称MVVM)模式开发,集成了物联网数据库(internet of things database,简称IoTDB)、GMAP.Net、FFmpeg等组件,可实现试飞关键参数、实时飞行轨迹、告警信息和机载视频的可视化监控.试验中,该系统客户端完成了某国产支线客机在南昌试飞全过程的实时监控,且系统运行稳定、可靠性高,为特殊试飞科目的开展提供了解决方案.
Abstract
The real-time flight test data monitoring system is a crucial means to ensure the safety of civil aircraft test flights and to verify the effectiveness of flight tests.Typically,the system uses S-band telemetry to transmit data to the ground,with a monitoring radius generally not exceeding 300 km.Data quality is easily affected by flight atti-tude,altitude,and airspace terrain.A new real-time flight test data monitoring system has been designed and devel-oped based on a C/S(Client/Server)architecture,employing satellite communication for air-to-ground communica-tion.The system consists of a server-side and a client-side;the server-side is deployed in the airborne environ-ment,continuously listening for data subscription commands from the ground client-side.The client-side is devel-oped using the WPF(Windows Presentation Foundation)framework and the MVVM(Model-View-ViewModel)pattern,integrating components such as IoTDB,GMAP.Net,and FFmpeg.This allows for the visualization of key flight test parameters,real-time flight trajectories,alarm information,and airborne video.During testing,the system's client-side operated in Shanghai and successfully monitored the entire test flight process of a domestically-produced regional jet in Nanchang in real-time.The system ran stably and reliably,providing a solution for conducting special flight test missions.
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