异构物联网的开放式架构研究

An open architecture for converged Internet of Things (IoT) is proposed in this paper. By  using  this model, the various and huge amount of data can be converted into converged data and then encapsulated as service packages. Moreover, a Representational State Transfer (REST) platform has been implemented in the lab environment. The merit of this architecture is the enhancement of data efficiency. Experimental results are provided to show the benefits of the proposed architecture.     

一种细粒度下基于角色的访问控制模型

基于角色的访问控制技术凭借灵活、方便的授权管理等优点被广泛地应用于信息管理系统中.本文在分析基于角色的访问控制技术原理的基础上,针对其在软件应用中的不足,研究了改进方法,并提出了一种细粒度下基于角色的访问控制模型,详细讨论了模型的设计思想,给出了具体的应用案例.     

物联网异构环境中面向服务的中间件

A great number of sensor technologies are applied in the Internet of Things (IoT) currently and more are emerging,which makes the IoT a heterogeneous network. This paper discusses the convergence and integration problem in IoT. A Service-O-riented Middleware for Heterogeneous Environment (SOMHE) in IoT is proposed. The purpose of the middleware is to shield the difference between protocols in the sensor layers such as Radio Frequency Identification (RFID) and ZigBee by defining the data conversion and mapping model. A Web service interface is supplied by this middleware, thus the complexity of high level application development can be reduced greatly. The feasibility and reliability of this middleware is verified by a demonstration system.