关于互联网直播监控系统的研究

摘要

随着直播技术在Internet网络的发展，互联网上的实时视频直播应用日渐丰富。基于服务覆盖网络的实时视频直播传输技术，因其具有良好的可控性与实用性，已成为在Internet上部署高质量实时视频直播应用的一种有效方式，具有重要的研究与应用价值。其中，涉及单向直播可扩展性与双向交互低时延需求之间的矛盾，涉及覆盖节点资源受限情形下的高质量实时视频直播传输需求等技术难题，己成为视频直播网络传输技术面临的重大挑战之一。本内容以基于服务覆盖网络的多频道实时视频直播与交互技术为研究内容，一种支持多频道实时视频直播的覆盖多播方法。所提方法解决了服务覆盖网络的带宽与计算资源在不同频道之间的分配与共享问题。首先，方法考虑频道间的相关性，提出一种支持多频道直播的多树搭建算法，该算法基于静态带宽分配与动态带宽利用，在共享的服务覆盖网络上构建多树实现多频道实时视频直播。以多频道覆盖多播架构为基础，方法进一步综合考虑了频道间与频道内的拓扑关系，提出一种覆盖网络拓扑感知的队列调度算法，优化服务覆盖网络节点计算资源在多频道间的分配与调度。实验与分析表明，与不考虑频道间、频道内拓扑相关性的覆盖多播方法相比，降低覆盖网络中重载节点的比重，并减少服务覆盖网络的平均路径延时。 

关键词　实时视频直播；多播方法；多播架构；大规模直播

abstract

With the development of multimedia technology and Internet network, real-time multimedia applications on the Internet are becoming more and more abundant. The real-time multimedia transmission technology based on service coverage network has become an effective way to deploy high quality real-time multimedia applications on Internet because of its good controllability and practicability, which has important research and application value. It is one of the major challenges in multimedia network transmission technology, which involves the contradiction between the one way live broadcast scalability and the two-way interactive low delay demand, which involves the high quality real-time multimedia transmission demand in the case of limited coverage nodes. In this paper, a multi channel real-time multimedia live broadcast and interactive technology based on service coverage network is studied. The proposed method solves the problem of the allocation and sharing of the bandwidth between the service overlay network and the computing resources in different channels. Firstly, considering the correlation between channels, a multi tree construction algorithm is proposed to support multi channel broadcast. The algorithm is based on the static bandwidth allocation and dynamic bandwidth utilization, and constructs multi tree real-time multimedia live broadcast on shared service coverage network. On the basis of multi channel overlay multicast architecture, the method is further integrated into the topology relationship between channels and channels, and a queue scheduling algorithm covering network topology is proposed to optimize the allocation and scheduling of computing resources between network nodes in multi channels. The experiment and analysis show that compared with the overlay multicast method that does not consider the topology correlation between channels and channels, it reduces the proportion of heavy load nodes in the overlay network and reduces the average path delay of the service coverage network.

Key words: real-time multimedia broadcast; multicast method; multicast architecture; large-scale live broadcast.

目录

摘要 I

abstract II

目录 1

第1章 导论 3

1.2功能需求 3

1.1.1 研究背景 3

1.1.2 研究现状 4

1.1.3 研究价值 7

第2章 系统总体分析和设计 8

2.1 系统组织结构 8

2.1.1 多画直播监控系统架构 8

2.2 多画直播监控系统功能 9

2.2.1 多画直播监控系统总体功能 9

第3章 数据库结构设计 12

3.1 E-R图 12

3.1.1 E-R图设计 12

3.2 表结构设计 12

3.2.1 数据表的设计 12

第4章 软件平台设计 17

4.1 软件平台介绍 17

4.1.1 B／S结构介绍 17

4.1.2 MVC模式 17

4.2 运行架构 19

4.3 WEB端设计 20

4.4 IPAD端设计 20

4.5 客户端设计 23

4.5.1 Stream Player客户端 23

4.5.2 语音告警客户端 23

第5章 系统代码详细实现 24

5.1 WEB前端代码实现 24

5.1.1 前端实现 24

5.2 WEB后端代码实现 27

5.2.1 后端实现 27

第6章 系统的测试及实现 31

6.1 系统测试 31

6.1.1 代码测试 31

6.1.2 swagger测试 32

6.1.3 Druid监控 33

结论 34

参考文献 35

致谢 36