一种面向服务的物联网中间件模型

描述了一种面向服务的物联网中间件模型,重点分析了物联网中间件结构的安全性和嵌入式设备的异构性,在该模型中定义了一组抽象的服务原语,以屏蔽设备的异构性和方便应用平台的协同工作。该模型所描述的中间件具有物联网中必不可少的特征如安全性、可扩展性、灵活性和协同工作的能力等。     

Middleware for Internet of Things: Survey and Challenges

The Internet of things (IoT) applications span many potential fields. Furthermore, smart homes, smart cities, smart vehicular networks, and healthcare are very attractive and intelligent applications. In most of these applications, the system consists of smart objects that are equipped by sensors and Radio Frequency Identification (RFID) and may rely on other technological computing and paradigm solutions such as M2M (machine to machine) computing, Wifi, Wimax, LTE, cloud computing, etc. Thus, the IoT vision foresees that we can shift from traditional sensor networks to pervasive systems, which deliver intelligent automation by running services on objects. Actually, a significant attention has been given to designing a middleware that supports many features; heterogeneity, mobility, scalability, multiplicity, and security. This papers reviews the-state-of-the-art techniques for IoT middleware systems and reveals an interesting classification for these systems into service and agent-oriented systems. Therefore two visions have emerged to provide the IoT middleware systems: Via designing the middleware for IoT system as an eco-system of services or as an eco-system of agents. The most common feature of the two approaches is the ability to overcome heterogeneity issues. However, the agent approach provides context awareness and intelligent elements. The review presented in this paper includes a detailed comparison between the IoT middleware approaches. The paper also explores challenges that form directions for future research on IoT middleware systems. Some of the challenges arise, because some crucial features are not provided (or at most partially provided) by the existing middleware systems, while others have not been yet tackled by current research in IoT.     

物联网体系及相关技术研究

当前物联网的定义、内在原理、体系结构和系统模型等方面还存在许多值得探讨的问题,为此,通过解析物联网的基本概念和特征,提出了物联网体系架构的感知层、网络层及应用层的三层架构,归纳了物联网涉及的射频识别、传感器、网络通信和云计算等关键技术,讨论了物联网在对象识别,跟踪及控制方面的具体应用。     

Smart Objects as Building Blocks for the Internet of Things

The combination of the Internet and emerging technologies such as near-field communications, real-time localization, and embedded sensors lets us transform everyday objects into smart objects that can understand and react to their environment. Such objects are building blocks for the Internet of Things and enable novel computing applications. As a step toward design and architectural principles for smart objects, the authors introduce a hierarchy of architectures with increasing levels of real-world awareness and interactivity. In particular, they describe activity-, policy-, and process-aware smart objects and demonstrate how the respective architectural abstractions support increasingly complex application.     

网络计算中间件

网络计算中间件是随着互联网的发展而于20世纪90年代兴起的一类基础软件,网络计算中间件为各种网络应用系统的开发、部署、运行和管理提供了有力支持.随着信息网络技术和软件服务工程的快速发展,网络计算中间件又被赋予了新的内涵,首先从网络计算环境出发,就基础中间件、应用集成中间件和领域应用框架的基本概念和主要技术作较全面的诠释;然后聚焦于云计算和物联网等网络计算的热点研究方向,从中间件的角度指出当前值得关注的某些挑战性研究课题和需要深入探索的若干关键技术.     

RFID与WSN在物联网下协同机制的分析*

在物联网的概念提出之前,射频识别(radio frequency identification,RFID)和无线传感器网络(wireless sensor network,WSN)均沿着各自的技术路线发展,它们之间的兼容性问题尚未被考虑.而在物联网中,这两种技术需不断地进行融合,研究它们在物联网中的工作机制和协作方式将...     

Dynamic load‐balancing mechanism for distributed Java applications

Program environments or operating systems generally leave the decision on the allocation of program entities to the developer, offering either placement directives, or tools available through the manipulation of a graphical interface. These approaches cannot always take into account the dynamic behavior of applications, dynamicity in the execution environment or the heterogeneity of the execution platform. Transparent deployment algorithms are necessary for automizing and optimizing application distribution. The Adaptive Distributed Applications in Java (ADAJ) project deals with placement and migration of Java objects. It automatically deploys parallel Java applications on a cluster of workstations using monitoring information about the application behavior. The transparency obtained through the integration of these tools in the middleware makes such an environment easy to use and improves efficiency. Copyright © 2005 John Wiley & Sons, Ltd.     

A Service-Oriented Middleware for Building Collaborative UAVs

For a while, Unmanned Arial Vehicles (UAVs) use was limited to military applications, however recently UAVs are also used for a wide range of civilian applications. Some of these UAV applications may involve multiple UAVs that must cooperate to achieve a common goal. This kind of applications is termed collaborative UAV applications. This paper investigates the collaborative aspects and challenges of multiple UAV systems. One of the main issues for multiple UAV systems is developing an effective framework to enable the development of software systems for collaborative UAV operations. One possible approach is to rely on service-oriented computing and service-oriented middleware technologies to simplify the development and operations of such applications. This paper discusses how the service-oriented middleware approach can help resolve some of the challenges of developing collaborative UAVs. The paper also proposes a service-oriented middleware architecture that can satisfy the development and operations of such applications.     

RFID Meets the Internet

After several years of development, networked RFID is moving beyond the early adopter phase as more and more industry sectors are using this technology for increasingly diverse applications. Two main technological advances have made this possible: the wider availability of very low-cost and higher-range passive RFID tags that require no battery to operate, and the use of the Internet to interconnect standalone RFID systems and software through robust fixed- and mobile-communication networks. This special issue presents some recent work in RFID middleware, services, overlaying, and the network edge.     

浅析物联网的安全问题

随着网络技术的迅速发展和广泛应用,物联网的概念进入人们的视野。物联网就是通过信息传感设备,按照约定的协议,把任何物品与互联网连接起来,以实现信息交换与智能化管理。本文通过对物联网的概念、原理和相关特点进行分析,提出了物联网在安全方面存在的几个基本问题。     

基于ZigBee技术的物联网开发平台构建

在深入理解物联网关键技术RFID原理后,提出将ZigBee技术、GPS技术融进RFID技术中,形成一个基于ZigBee、GPS的多点自动识别、智能无线组网和实时定位的RFID识别系统的物联网开发平台.在该平台中详细介绍了RFID和ZigBee等各个模块原理及其应用,同时解决了阅读器在读取EPC电子标签数据时易出现的碰撞...     

基于SOA的RFID中间件集成应用

RFID 中间件的出现有助于实现RFID设备与企业应用系统之间的集成。该文提出一种基于面向服务体系架构的RFID集成应用方案,使企业应用系统能够通过服务接口层调用RFID中间件提供的服务,实现应用系统与RFID系统的松耦合集成。应用实例验证了该项方案的可行性。     

物联网与RFID中间件探讨

物联网已经逐步在我们生产与生活中得以应用,文章对物联网基本组成与应用流程进行了介绍,描述了物联网中关键技术RFID的原理,在分析RFID中间件系统功能的基础上,阐述了一种基于J2EE、SAVANT技术的RFID中间件系统的构建方法。     

一种面向服务的物联网中间件模型

描述了一种面向服务的物联网中间件模型,重点分析了物联网中间件结构的安全性和嵌入式设备的异构性,在该模型中定义了一组抽象的服务原语,以屏蔽设备的异构性和方便应用平台的协同工作。该模型所描述的中间件具有物联网中必不可少的特征如安全性、可扩展性、灵活性和协同工作的能力等。     

基于RFID物联网的应用研究

物联网是在计算机互联网的基础上,利用射频自动识别(RFID)技术,通过互联网实现物品的自动识别和信息的互联与共享。在简述RFID电子标签和物联网的基本原理基础上,通过在零售业中的应用实例讨论物联网的系统构架、关键技术及其应用。最后提出云计算、并行计算和数据挖掘等技术在物联网中的应用想法。     

基于云计算的物联网安全研究

介绍了云计算与物联网的概念,分析了二者结合的必然性与结合模式,提出了基于云计算的物联网体系结构,研究了基于云计算的物联网所面临的安全威胁问题,并针对安全威胁给出了相应的解决方案,即构建可信的物联网环境和如何保证"云"中的物联网数据安全,指出了基于云计算的物联网安全研究的技术难点和研究现状。     

基于ARM的RFID中间件系统设计

提出一种基于ARM的支持多通信平台（如Internet、GSM/GRPS和CDMA）的RFID中间件系统设计。这种中间件可通过标准的接口（如RS-232接口、RS-485接口、以太网接口）连接不同厂商、不同类型的读写器（13.56MHz和915MHz）,屏蔽了RFID硬件设备的多样性和复杂性,为上层企业应用系统提供统一的、强大的硬件管理支撑,并通过多通信平台实现中间件之间的通信,为更广泛、更丰富的RFID应用奠定了基础。     

基于RFID和SCOR的物联网配送中心信息系统模型研究

反思了传统信息反馈机制和物流配送中心运营特点,分析了配送中心信息化方向与路径,提出了基于RFID(射频识别)技术和SCOR(供应链运作参考模型)的物联网配送中心信息系统模型,阐明了该模型的体系架构、层次关联、技术路径与实施方案,为现代物流企业提供了一种可行的物联网配送中心信息系统参考模型。     

基于物联网的智能停车场解决方案研究

介绍了物联网RFID技术的相关概念,给出了一个基于物联网的智能停车场解决方案.详细分析了该解决方案给停车场带来的便利和效益.     

An internet of old things as an augmented memory system

The interdisciplinary Tales of Things and electronic Memory (TOTeM) project investigates new contexts for augmenting things with stories in the emerging culture of the Internet of Things (IoT). Tales of Things is a tagging system which, based on two-dimensional barcodes (also called Quick Response or QR codes) and Radio Frequency Identification (RFID) technology, enables the capturing and sharing of object stories and the physical linking to objects via read and writable tags. Within the context of our study, it has functioned as a technology probe which we employed with the aim to stimulate discussion and identify desire lines that point to novel design opportunities for the engagement with personal and social memories linked to everyday objects. In this paper, we discuss results from fieldwork with different community groups in the course of which seemingly any object could form the basis of a meaningful story and act as entry point into rich inherent ‘networks of meaning’. Such networks of meaning are often solely accessible for the owner of an object and are at risk of getting lost as time goes by. We discuss the different discourses that are inherent in these object stories and provide avenues for making these memories and meaning networks accessible and shareable. This paper critically reflects on Tales of Things as an example of an augmented memory system and discusses possible wider implications for the design of related systems.