The recording and application status quo of fight data is briefly described first , then aircraft condition monitoring system ( acms ) , a compositive and advanced airborne equipment , is introduced . aiming at two sub - systems included in acms , quick access recorder ( qar ) and aircraft communications addressing and reporting system ( acars ) , we expound the technology of data - processing and application in detail 本文首先简要描述了飞行数据的记录及应用现状,然后具体介绍了综合性的先进机载设备?飞机状态监控系统( acms ) ,并且针对该系统中的两个重要子系统:快速存取记录器( qar )和飞机通信寻址与报告( acars )系统,详细讨论了其数据处理和应用技术。
A quick access recorder (QAR) is an airborne flight data recorder designed to provide quick and easy access to raw flight data, through means such as USB or cellular network connections and/or the use of standard flash memory cards. QARs are typically used by airlines to improve flight safety and operational efficiency, usually in the scope of an their flight operational quality assurance plans.