民用客机快速存取记录器设计  

Design of Quick Access Recorder for Civil Aircraft

作　　者：朱恩亮 韩康 马晓晨 杨启帆 ZHU En-liang;HAN Kang;MA Xiao-chen;YANG Qi-fan(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710000,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710000

出　　处：《航空计算技术》2021年第5期97-99,104,共4页Aeronautical Computing Technique

基　　金：国家某重点科研项目资助(MJ-2018-S-34)。

摘　　要：为加强对民用客机运营的科学管理,保证民用客机的运营安全,需要实现驾驶舱音频记录、飞机参数记录,以及实现对记录数据的快速获取。在分析快速存取记录器关键需求的基础上,对记录器的核心硬件电路与软件展开设计。通过结合对称加密算法与非对称加密算法的优点,设计实现了一种能够对音频数据进行快速、安全加密的方法。经过实际装机测试,方法能够满足预期的功能、性能要求。In order to strengthen the scientific management of civil aircraft operation and ensure the operation safety of civil aircraft,it is necessary to realize cockpit voice recording,aircraft parameter recording and quick access of recorded data.Based on the analysis of the key requirements of the quick access recorder,the core hardware circuit and software of the recorder are designed.By combining the advantages of symmetric encryption algorithm and asymmetric encryption algorithm,a fast and secure encryption method for audio data is designed and implemented.After the actual installation test,the recorder can meet the expected function and performance requirements.

关 键 词：舱音记录 飞机参数记录 I.MX6Q 音频编解码 ITU G.722 安全快速的加密算法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]