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嵌入式海上AIS网络管理系统研究实现

Research and Realization of Embeded Marine AIS Networks Administration

【作者】 赵欣

【导师】 顾新;

【作者基本信息】 西安电子科技大学 , 计算机应用技术, 2006, 硕士

【摘要】 海上船舶自动识别系统(AIS)是一种采用TDMA方式工作的新型助航设备。其优点是信息量大、实时性好、抗干扰能力强和越障碍传输。主要应用领域是船舶避碰、船舶交通管理系统。它以通信技术和计算机技术为依托,给海上船舶监视带来了革命性的进步。本文分析研究了AIS系统中的软件部分——网络管理系统的原理,深入探讨了AIS中的关键技术,并给出了在Linux平台下嵌入式AIS网络管理系统的解决方案。首先,论文介绍了AIS系统的组成结构,网络通信体系模型,以及AIS系统中时隙等重要概念。然后,在研究AIS网络管理系统的原理基础之上,分析AIS的四种时隙预约、选择算法:ITDMA、SOTDMA、RATDMA、FATDMA;研究AIS中的关键技术:时间同步,时隙复用等。其次,在Linux平台下,基于SOCKET通信,设计网络管理系统,并具体实现了网络管理系统的各阶段主要功能,和其中的时间同步,时隙复用等关键算法。最后,通过建立SOTDMA通信的数学模型,简要分析时隙选择的冲突概率。

【Abstract】 The universal shipbome automatic identification system (AIS) is one kind of the navigation equipments. It uses the TDMA communication skills. Its merit is: the information content is big, timeliness good, the anti jamming ability is strong and the barrier transmission. The main application domain is the ships evades and the ships traffic control system, it takes corresponds the communication technology and the computer technology as the backing, and bring the revolutionary progress for the marine ships surveillance.This paper analyzed and studied in the AIS system software partial - network management system. After the discussing in the AIS essential technology, the article proposed the solution of embedded AIS network management system, and realize it under the Linux platform.The paper first introduced the AIS system composition structure, the network communication system model, as well as important concept. Above this foundation, studies AIS four channel access schemes: ITDMA, SOTDMA, RATDMA, FATDMA; Studies in AIS the essential technology: Time synchronization, Slot reuse. Then, under the Linux platform, based on the SOCKET, realized main function of the network management system stages, time synchronization, and slot reuse algorithm. Finally through establishes the SOTDMA mathematical model, analysis its conflict probability.

  • 【分类号】TP393.07
  • 【被引频次】3
  • 【下载频次】104
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