基于短波数据通信的海上移动物联网  

The Mobile Internet of Things on the Ocean Based on Digital Shortwave Communication

作　　者：张逸驰[1] 杨雷[1] 

机构地区：[1]东南大学信息科学与工程学院,江苏南京211189

出　　处：《控制工程期刊（中英文版）》2013年第3期218-223,共6页Scientific Journal of Control Engineering

摘　　要：从发展海洋经济的角度出发，分析了物联网从陆地拓展到海洋的意义。针对现有海上物联网系统AIS和LRIT，指明了其缺点和改进的必要性，得出构建海上物联网关键在于提升海洋通信能力的结论。在对目前船舶通信状况分析的基础上，提出利用基于COFDM技术的话带调制解调器将模拟的船用短波电台扩充为较高速的船用数据电台的方案，为构建高速、稳定、经济的“海上物联网”建立远洋短波数字通信的基本架构。论证了该方案的可行性，展示了它的技术特色和应用前景。The mobile Internet of things on the ocean is significant for the development of marine economy. Meanwhile, the existing systems, such as AIS and LRIT, can＇t meet the requirement of the mobile Internet of things. After analyzing weaknesses of them, it is found that the poor capacity of ocean communication is the stick point to build the Internet of things on the ocean. Then, the proposal based on the COFDM technology for improving it is put forward. By upgrading the analog shortwave radios into high- speed digital radios with the audio modem, a fundamental architecture for the Internet of things on the ocean can be built. At last, a way based on software-defined radio to realize the proposal is introduced, and the technical characteristics together with prospect of the technology are revealed.

关 键 词：海上物联网 短波通信 无线话带 COFDM AIS 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]