The embodiment of the invention provides a data transmission method and system of a general aircraft in a low-altitude airspace, and belongs to the technical field of data transmission in the low-altitude airspace. Comprising the following steps: acquiring a compressed data packet and a corresponding file length at a data sending end; according to a comparison result of the file length and a preset length threshold value, determining and obtaining a data sub-packet containing a packet header identifier control character; packaging the data sub-packet according to a preset format of the Beidou short message, and sending the packaged data sub-packet based on the packet header identifier control character; at a data receiving end, receiving the data sub-packet from the data sending end, and analyzing the data sub-packet according to the format of the Beidou short message; according to the packet header identifier control character of the data sub-packet, completing the grouping of the data sub-packet to obtain a compressed data packet; the compressed data packet is decompressed to obtain an ADS-B message. According to the invention, monitoring data can be transmitted on a short message data link by using the Beidou short message communication module.
本发明实施例提供一种低空空域通用航空器的数据传输方法、系统,属于低空空域的数据传输的技术领域。包括:在数据发送端,获得压缩数据包及其对应的文件长度;根据文件长度与预设定的长度阈值的比较结果确定并获得包含有包头标识控制符的数据分包;按照预设定的北斗短报文的格式封装数据分包,且基于包头标识控制符发送已完成封装的数据分包;在数据接收端,接收来自数据发送端的数据分包,并且按照北斗短报文的格式解析数据分包;根据数据分包的包头标识控制符完成数据分包的组包以获得压缩数据包;解压缩压缩数据包以获得ADS‑B消息。本发明可以利用北斗短报文通信模块来实现监视数据在短报文数据链上传输。
Data transmission method and system for low-altitude airspace general aircraft
一种低空空域通用航空器的数据传输方法、系统
15.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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