物品万维网资源管理框架研究与应用  

Research and application of Web of things resource management framework

作　　者：李养群[1,2] 张登银[1,2] LI Yangqun;ZHANG Dengyin(School of Internet of Things,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;Jiangsu Key Laboratory of Broadband Wireless Communication and Internet of Things,Nanjing University of Posts and Telecommunications,Nanjing 210003,China)

机构地区：[1]南京邮电大学物联网学院,江苏南京210003 [2]南京邮电大学江苏省宽带无线通信与物联网重点实验室,江苏南京210003

出　　处：《物联网学报》2022年第2期50-64,共15页Chinese Journal on Internet of Things

基　　金：国家自然科学基金资助项目(No.61972211)。

摘　　要：物品万维网(WoT,Web of things)将万物通过Web相连在一起,实现物品(things)所提供的数据或服务等资源的共享,以充分实现它们的潜在价值。但这些资源分布于各地并且分属于不同组织,基于中央基础设施的WoT资源管理机制已无法满足当前应用规模不断扩展、需求快速变化、数据种类不断增加的新形势。针对这些新问题与新需求,提出了一种WoT资源管理框架(WoTRMF,Web of things resource management framework)。首先,在该框架的基础上对资源的分布式管理、资源高效发布与发现、资源的安全高效共享、资源统一管理平台等机制进行综述。接着,针对分布式管理需求,提出了一种基于地理位置的P2P技术以实现WoT应用的高可用性和高效资源管理;针对高效发布/发现需求,提出了基于概率主题的智能化WoT资源发布方法以实现资源的自动化分类及有序发布与存储;针对资源安全访问需求,提出了基于区块链的安全可信WoT资源共享机制。然后,针对资源统一管理需求,给出了该WoT资源管理框架的功能实现模型。最后,通过WoTRMF在智慧城市安全管理中的应用分析了其开放性、灵活性、可扩展性及智能化等特点。Web of things(WoT)connects all things together through the Web and realizes the sharing of resources,such as data or services provided by things,to fully implement their potential value.However,these resources are distributed in various places and belong to different organizations.The WoT resource management based on central infrastructure can no longer meet the new situation of continuous expansion of application scale,rapid changes in demand,and continuous increase of data types.In response to these new problems and new requirements,WoTRMF(Web of things resource management framework)was proposed.Firstly,based on this framework,the WoT resource management mechanism from the following aspects was reviewed,including distributed management of resources,efficient publish and discovery of resources,cost-effective,secure and efficient sharing of resources,and a unified resource management platform.Then,according to the requirement of distributed management,a P2P technology based on geographic location was proposed to realize distributed automatic management of WoT resources,so as to meet the high availability requirements of WoT applications and improve the efficiency of resource management.Aiming at the requirement of efficient resource publishing/discovery,an intelligent WoT resource publishing mechanism based on probabilistic topics was proposed to realize automatic classification and orderly publishing and storage of resources.Aiming at the security access requirements of resources,a secure and trusted WoT resource sharing mechanism based on blockchain was proposed.According to the requirement of unified resource management,the functional implementation model of WoTRMF was given.Finally,through the application case of WoTRMF framework in smart city security management,its characteristics of openness,flexibility,scalability and intelligence were analyzed.

关 键 词：物品万维网 资源管理 区块链 概率主题 管理平台 智慧城市安全 数字孪生 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]