基于北斗三号短报文的应急图文信息传输技术
The transmission technology of emergency graphics and text based on BeiDou-3 short message
王尔申 1贾帅 1王明阳 2纪贵鹏 1吴建强 2徐嵩 1杨健3
作者信息
- 1. 沈阳航空航天大学电子信息工程学院,沈阳 110136
- 2. 北京星桥恒远导航科技股份有限公司 研发部,北京 100089
- 3. 沈阳航空航天大学辽宁通用航空研究院,沈阳 110136
- 折叠
摘要
为提高应急救援服务能力,提出一种基于北斗三号短报文的应急图文信息传输技术,并设计了基于北斗三号的应急图文信息传输平台.为提高北斗短报文信息传输效率,提出文本和图像压缩编码算法,将文本和图像信息压缩成信息容量更小的数据包,缩短了信息传输所需数据包的长度.实验结果表明,该算法对文本消息的压缩率达到50%,图像信息的压缩率达到2%.平台测试结果表明,在有限的通信资源下,终端与指挥机之间能够高效地进行信息交互,有助于更快速地响应应急情况.该研究成果对应急管理部门提高应急救援服务能力具有一定参考价值.
Abstract
In order to improve the capacity of emergency rescue services,an emergency graphic infor-mation transmission technology based on BeiDou-3 short message was studied,and an emergency graphic information transmission platform based on BeiDou-3 was designed.In order to improve the ef-ficiency of BeiDou short message information transmission,text and image compression coding algo-rithms were studied respectively,and the text and image information were compressed into packets with smaller information capacity,which reduced the length of packets required for information trans-mission.The experimental results show that the compression rate of the algorithm reaches 50%for text messages and 2%for image messages.The test results of the platform show that the information interac-tion between the terminal and the commanding machine can be carried out efficiently with limited com-munication resources,which helps to respond to the emergency situation more quickly.The research re-sults have a certain reference value for the emergency management department to improve the capacity of emergency rescue services.
关键词
应急救援/北斗卫星导航系统/图像压缩/文字编码/北斗短报文Key words
emergency rescue/BeiDou satellite navigation system/image compression/text code/Bei-Dou short message引用本文复制引用
基金项目
国家自然科学基金(62173237)
辽宁省应用基础研究计划项目(2022020502-JH2/1013)
辽宁省应用基础研究计划项目(2022JH2/101300150)
沈阳市科技计划项目(22-322-3-34)
出版年
2024
国家科技期刊平台
NSTL
万方数据