机载PHM通信中的BDS优先级分包传输方法研究  

BDS Priority-Based Packet Transmission Strategy for Airborne PHM Communication

作　　者：田志宇 曾庆化 许睿 宦国耀 邱文旗 TIAN Zhiyu;ZENG Qinghua;XU Rui;HUAN Guoyao;QIU Wenqi(Navigation Research Center Nanjing University of Aeronautics and Astronautics,Nanjing 211000 China)

机构地区：[1]南京航空航天大学导航研究中心,南京211000

出　　处：《电光与控制》2022年第8期79-83,87,共6页Electronics Optics & Control

基　　金：国家自然科学基金(61533008,61603181);江苏高校优势学科建设工程。

摘　　要：故障预测与健康管理(PHM)对提高无人机的可靠性具有重要意义。针对北斗短报文机载PHM通信中数据量与传输效率之间的矛盾,提出并实现了一种机载PHM通信中的北斗卫星导航系统(BDS)优先级分包传输方法。该方法基于传输信息优先级思路设计了分包传输策略,平衡了通信频度与容量不足的矛盾,然后利用丢包重传机制提高了通信的可靠性,并实现了可视化通信应用。实验结果表明,所提策略可在规定时间内实现PHM信息的可靠传输,验证了所设计的BDS优先级分包传输方法在机载PHM信息传输方面的可靠性。Prognostics and Health Management(PHM)is an essential operation in improving the reliability of UAVs.Aiming at the contradiction between data quantity and transmission efficiency in airborne PHM communication of BeiDou short message a kind of BDS priority-based packet transmission strategy for airborne PHM communication is developed.Based on the idea of transmission information priority a packet transmission strategy is designed to balance the contradiction between communication frequency and insufficient capacity.Then the reliability of communication is improved by using the automatic repeat-request mechanism and the visual communication application is realized.The experimental results show that the proposed strategy can reliably transmit PHM information within the specified time which verifies the reliability of the developed BDS priority-based packet transmission strategy in terms of airborne PHM information transmission.

关 键 词：北斗短报文 通信 传输策略 无人机 故障检测与健康管理 

分 类 号：TP206.3[自动化与计算机技术—检测技术与自动化装置] TN927.23[自动化与计算机技术—控制科学与工程]