华中科技大学硕士学位论文
摘要
近些年来，我国自然灾害情况时有发生，与此同时，我国重大突发紧急情况也呈日益增加的趋势。因此我国对于应急通信系统的研究开发需求愈加迫切。本论文以国家广电项目“基于广电体系的应急融合通信关键技术研究与应用示范”为背景，针对系统的需求，完成了对于应急融合通信系统软件方案和传输系统架构的设计以及对于系统各级设备功能关键模块的设计与实现。 本项目中的应急融合通信系统主要分为三个模块系统，分别是分发汇聚服务器、移动应急通信平台和多模一体化终端平台。分发汇聚服务器模块实现的是对上行业务流数据的汇聚和对下行业务流数据的分发以及和应急指挥中心的通信作用，移动应急通信平台实现的是将上下行业务流数据进行转发的中继工作，多模一体化终端平台实现的是对应急现场信息的视频采集与传输工作。 字幕烟花
本文介绍了基于交叉编译的MIPS终端开发平台系统的搭建工作，完成了基于Linux内核的系统各级设备关键功能模块的软件方案的设计与实现，完成了多模一体化终端到移动应急通信平台、移动应急通信平台到分发汇聚服务器的服务器的链路测试环境方案搭建与测试。关键的功能模块包括选择重传和多链路下ACK传输优化、基于哈希的设备自适应接入、终端服务器间旁路、多链路容量测量、实网卡和虚拟网卡等。
关键词：应急融合通信，ARP寻址欺骗，ACK传输优化，旁路
华中科技大学硕士学位论文
ABSTRACT
In recent years, natural disasters have occurred frequently in China. At the same time, major emergencies also showing an increasing trend in China, so the development of emergency communication systems is particularly important. This dissertation is based on the national project "Research and Application Demonstration of Key Technologies of Emergency Convergence Communication Based on Radio and TV System". Based on the needs of the system, the design of the software solution and transmission system architecture for the emergency convergence communication system and the design and implementation of the key modules of the equipment at all levels of the system are compeleted.
The emergency integrated communication system consists of three levels of communication equipment: distribution aggregation server, mobile emergency communication platform and multi-mode integrated terminal. The distribution aggregation server completes the aggregation and scheduling of the information and submits the information to the emergency command center, the m
obile emergency communication platform completes the information relay work of the terminal and the server the multi-mode terminal completes the information collection and transmission of the emergency site. This paper introduces the construction of the MIPS terminal development platform system based on cross-compilation, and completes the design and implementation of a software solution for key functional modules of all levels of equipment based on Linux kernel. the environmental plan construction and testing of the link of the multi-mode integrated terminal to the mobile emergency communication platform and the mobile emergency communication platform to the server of the distribution aggregation server are completed. The main functional modules include selected retransmission and ACK transmission optimization based on multi-link、device adaptive access based on hash-map, terminal-server bypass, multi-link capacity measurement, real network device and virtual network device.
华中科技大学硕士学位论文
Key words：Emergency integrated communication , ARP addressing and spoofing , ACK transfer optimization , Bypass selection
华中科技大学硕士学位论文
目录
摘要............................................................................................................... I ABSTRACT .................................................................................................... I I 目录............................................................................................................ IV 1 绪论 (1)
蓝膜片回收1.1研究背景与意义 (1)
1.2国内外研究概况 (2)
1.3本文的主要工作与贡献 (3)
1.4论文的结构与安排 (5)
2 基于广电体系的应急融合通信系统背景介绍 (7)
2.1系统背景介绍 (7)
2.2系统整体需求介绍 (8)
2.3系统传输链路 (9)
2.4系统各级设备平台的搭建 (11)
2.5L INUX内核开发相关技术 (12)
2.6本章小结 (18)
3 基于广电体系的应急融合通信系统软件方案设计 (19)
3.1系统软件方案架构设计 (19)
3.2传输系统架构设计 (20)
3.3系统设备功能模块的需求与设计 (23)
3.4各级设备软件方案架构设计 (25)
华中科技大学硕士学位论文
3.5本章小结 (29)
4 基于广电体系的应急融合通信系统关键模块软件实现 (30)
4.1选择重传模块和多链路下ACK传输优化设计 (30)
4.2基于哈希的设备自适应接入模块 (37)
4.3终端服务器间旁路模块 (39)portal认证服务器
4.4多链路容量测量模块 (42)
4.5实网卡与虚拟网卡模块 (46)
4.6本章小结 (49)
5 基于广电体系应急融合通信系统测试方案设计与实现 (51)
5.1应急融合通信系统测试需求与环境搭建 (51)
5.2模拟测试系统方案设计 (52)
罗口袜5.3系统关键模块测试方案 (56)
5.4测试结果分析 (57)
夏桑菊对新型冠状病毒有效吗
5.5本章小结 (63)
6 总结与展望 (64)
6.1全文总结 (64)
6.2课题展望 (64)
致谢 (66)
参考文献 (67)
附录1 攻读硕士学位期间参与科研项目和研究成果 (72)
硫酸钙晶须
附录2 中英文缩略词对照表 (73)
豫公网安备41160202000603
站长QQ:729038198
关于我们
投诉建议