公交车载数据更新系统的研究与设计

发布时间：2018-04-22 02:06

本文选题：数据更新 + ACE框架　；参考：《浙江工业大学》2012年硕士论文

【摘要】：目前,城市公交电视系统中媒资数据分发的主流架构为无线发射模式和本地存储模式两种。在本地存储模式中,媒资数据存储在终端设备中,通过循环模式实现广告节目的播放。广告节目等媒资数据的快速更新和海量监播数据的完整收集,是本地存储模式的技术难点问题。因此,一套用于对多媒体终端进行数据更新并获取终端节目播放同志的系统,对于城市公交电视系统来说,具有非常重大的实际意义。本文设计并实现了一套公交车载数据更新系统用以完成上述的业务功能,提高了数据更新系统的软件性能和工作效率。实现该系统的主要技术难点包括：1、如何设计公交数据更新系统的网络拓扑结构；2、如何设计数据的更新模式；3、如何设计一套支持高并发客户端业务处理的数据更新系统；4、如何设计数据更新调度策略来提高数据更新效率。在对上述问题进行了深入的研究后,取得了以下结果： 1、针对数据更新系统的业务需求,设计负载均衡器分发基站服务器网络地址,后端基站服务器完成更新任务的逻辑架构,并设计了基础更新模式和种子更新模式两种更新模式。 2、利用ACE的REACTOR框架实现基于事件分离的网络框架,构建基站服务器的各个模块,完成雏站服务器设计与实现。 3、利用ERLANG并发编程语言完成负载均衡器的设计与实现,完成网络地址转发功能利哎新调度策略优化功能。 4、将蚁群算法应用到基于种子更新模式下的更新调度策略中,通过合适的模型构建算法,通过实验表明,蚁群算法优化的更新策略可以获得更高的更新效率。 5、最后对全文进行总结,提出有待改进的研究内容。
[Abstract]:At present, wireless transmission mode and local storage mode are the main architecture of media data distribution in urban public transport television system. In the local storage mode, the media data is stored in the terminal device, and the advertisement program is played by circular mode. The rapid updating of media data such as advertising programs and the complete collection of mass monitoring and broadcasting data are the technical difficulties of local storage mode. Therefore, a system for updating multimedia terminal data and acquiring terminal program player is of great practical significance for urban public transport television system. In this paper, we design and implement a bus data update system to complete the above business functions, and improve the software performance and work efficiency of the data update system. The main technical difficulties in implementing the system include: 1, how to design the network topology of bus data update system, how to design the update mode of data, and how to design a set of data update which supports the processing of high concurrent client service. System 4, how to design data update scheduling strategy to improve the efficiency of data update. After a thorough study of the above problems, the following results have been obtained: 1. According to the service requirement of the data update system, the logical architecture of load balancer distributing the base station server network address and the back-end base station server completing the update task is designed, and the basic update mode and the seed update mode are designed. 2. The REACTOR framework of ACE is used to realize the network framework based on event separation, each module of the base station server is constructed, and the design and implementation of the server is completed. 3. The load balancer is designed and implemented by using ERLANG concurrent programming language, and the network address forwarding function is realized. 4. The ant colony algorithm is applied to the updating scheduling strategy based on seed update mode. Through the appropriate model construction algorithm, the experiment shows that the ant colony algorithm optimized update strategy can achieve higher update efficiency. Finally, the paper summarizes the full text and puts forward the research contents to be improved.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP311.52

【参考文献】