李冠宇 安敬民

（大连海事大学 信息科学技术学院，辽宁 大连  116026）

摘   要：物联网中的实体大多以异构形式存在，解决异构问题是推进物联网发展的重要因素.为此，在分析了实体及实体上载到网络中信息的特点后，基于Agent提出一种异构实体关系服务模型.该模型具有实体信息数据处理和构建实体服务逻辑两种功能，利用提出的全新的实体物间动态关系计算公式将异构数据转化为物间关系紧密度（值），并依此生成了Agent服务序列，结合二分图理论实现物联网环境下的Agent服务逻辑;屏蔽了原本因实体和其信息的异构而使得其无法正常交互通信的缺点，实体通过模型中与之对应的Agent进行交互，并在已构建的服务逻辑下支配Agent;最后对该模型进行了仿真实验，结果表明其可满足物联网环境中的用户服务需求，在数据更新和服务准确率及冲突的处理上要优于传统的本体语义技术对异构问题的处理结果.

关键词：物联网;实体异构;Agent;数据处理;服务逻辑

中图分类号：TP18;TP393                         文献标志码：A

Internet of Things-oriented Heterogeneous Entities Relation Service Model

LI Guanyu，AN Jingmin？覮

（Faculty of Information Science and Technology， Dalian Maritime University， Dalian 116026， China）

Abstract： Entities mostly exist in heterogeneous forms in Internet of Things （IoT）， so solving heterogeneous issue is a vital task for developing IoT. On the basis of analysis on the characteristics of entities and their uploaded information in IoT， an agent-based heterogeneous entities relation service model was proposed. The functions of model include entity information data processing and entity service logic construction， and through using the new inter-objects dynamic relation calculation formula proposed in the paper，the heterogeneous data was transformed into their relation closeness（values），and the agent service sequence was generated based on it. Combining with the bipartite graph theory， the agent service logic was realized in IoT environment， which overcomes the heterogeneity that entities are unable to communicate with each other properly. In the model， entity interactions were completely replaced with agent interactions，and these agents were governed under the established service logic. Finally， the simulation experiment was performed on the model. And the result shows that not only can user's service requirements in IoT environment be met but also it is better than the traditional ontologies and semantics technology to deal with heterogeneous issues in the data updating， service quality and conflict handling.

Key words： internet of things;heterogeneous entities;Agent;data processing;service logic

收稿日期：2018-05-23

基金項目：国家自然科学基金资助项目（61371090，61602076），National Natural Science Foundation of China（61371090，61602076）

作者简介：李冠宇（1963—），男，辽宁丹东人，大连海事大学教授，博士生导师，博士

？覮通讯联系人，E-mail：870457569@qq.com