分布式物联网发现服务

发布时间：2018-05-10 14:46

本文选题：物联网 + 发现服务　；参考：《郑州大学》2012年硕士论文

【摘要】：物联网的应用和研究越来越广泛,包含有EPC电子标签、物联网软件、电子商务、物联网体系结构等方面。物联网的目标就是要形成一个全球范围内的网络,即如何在企业间搭建内部的物联网系统和各个企业之间的系统进行信息交互。在物联网体系中,产品在供应链中进行移动和流通时,它的信息会存储在经过的每一个公司的EPCIS服务器中,但是储存信息的这些公司的EPCIS服务器之间并没有直接的联系,要想从这些众多的EPCIS服务器中找到出某个物品的全部信息,那么这就需要使用物联网技术中的发现服务来进行信息查找。发现服务类似Web的搜索引擎一样,对物品进行查询从而得到存储物品的相关信息的EPCIS服务器的地址进而得到更详细的信息。虽然各国都在研究物联网技术,但是发现服务还没有形成一个标准。由于EPCglobal提出的物联网的技术相对比较完善并且影响力也比较大,所以本文首先对EPCglobal提出的物联网的相关技术进行了介绍,然后详细地分析了BRIDGE项目提出的发现服务,并指出集中式的发现服务存在根服务查询瓶颈以及安全隐私等问题。然后根据分布式网络的特点,并借鉴BRIDGE项目提出的请求传播模式的发现服务,提出了一种分布式的物联网发现服务,然后对本文提出的发现服务在数据存储格式、查找过程以及数据隐私安全性方面做出了详细地分析。最后对集中式发现服务和本文提出的分布式发现服务进行了分析,首先分析了各个阶段的信息查询的时间,并进行了比较分析。然后又通过程序测试对提出的发现服务进行了分析,证明了能够有效地提高网络容量的利用率,解决了负载不平衡等问题。
[Abstract]:The application and research of Internet of things are more and more extensive, including EPC tag, Internet of things software, electronic commerce, Internet of things architecture and so on. The goal of the Internet of things is to form a global network, that is, how to build an internal system of the Internet of things among enterprises and how to exchange information between the systems of each enterprise. In the Internet of things system, when a product moves and flows through the supply chain, its information is stored in the EPCIS servers of each passing company, but there is no direct connection between the EPCIS servers of those companies that store the information. In order to find all the information of an item from these numerous EPCIS servers, it is necessary to use the discovery service in the Internet of things to find the information. The discovery service is similar to the Web search engine, which queries the items to get the address of the EPCIS server that stores the information about the items, and then gets more detailed information. Although countries are studying the Internet of things technology, the discovery of services has not yet formed a standard. Because the technology of Internet of things put forward by EPCglobal is relatively perfect and has great influence, this paper firstly introduces the related technology of Internet of things proposed by EPCglobal, and then analyzes the discovery service of BRIDGE project in detail. It is pointed out that the root service query bottleneck and security privacy exist in the centralized discovery service. Then according to the characteristics of distributed network and the discovery service of request propagation mode proposed by BRIDGE project, a distributed Internet of things discovery service is proposed, and then the discovery service in data storage format is proposed in this paper. The search process and data privacy security are analyzed in detail. Finally, the centralized discovery service and the distributed discovery service proposed in this paper are analyzed. Firstly, the information query time of each stage is analyzed and compared. Then the discovery service is analyzed by program test, which proves that it can effectively improve the utilization of network capacity and solve the problem of load imbalance.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP391.44;TN929.5

【引证文献】