2010未来网络峰会：服务导向架构提升无线传感器网络互操作性

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在未来网络峰会上，2010年的FutureNetwork&MobileSummit上，Paul Cunningham和Miriam Cunningham共同编辑的会议专题报告《服务导向中间件架构在无线传感器网络中的应用》引起了广泛关注。该报告的ISBN为978-1-905824-16-8，展示了在不断增长的分布式传感器网络市场，尤其是无线传感器网络（Wireless Sensor Networks, WSN）平台的发展趋势。这些平台普遍采用诸如IEEE 802.15的6LoWPAN等协议，然而这种标准化的不一致性导致了节点和平台之间的某种程度的互操作性限制。论文作者Hamidreza Abangar、Payam Barnaghi、Klaus Moessner、Anita Nnaemego、Karthik Balaskandan和Rahim Tafazolli，来自英国萨里大学通信系统研究中心，他们提出了一个旨在弥合这种互操作性差距的服务导向中间件平台理念。报告深入探讨了多种潜在技术，包括但不限于： 1. **服务导向架构**：服务导向架构（SOA）的核心在于将复杂的系统分解为一组可重用的服务，使得不同平台间的交互更为灵活和高效。通过标准化的服务接口，能够促进不同WSN平台之间的无缝集成。 2. **标准化协议**：强调了采用统一的标准协议对于增强WSN互操作性的必要性，如使用6LoWPAN协议族的扩展版本，以支持更多元化的设备和应用场景。 3. **跨平台兼容性**：论文提出的方法旨在设计一种中间件，它能够适应各种WSN平台的异构性，允许节点之间进行无障碍的数据交换和功能调用。 4. **技术解决方案**：可能的技术解决方案可能包括轻量级的消息传递机制、数据压缩和路由算法优化，以及安全和隐私保护措施，以确保在异构环境中实现可靠和安全的信息传输。 5. **安全性与隐私**：在无线传感器网络中，由于其开放性和暴露的特性，安全和隐私是关键问题。论文可能讨论了如何通过中间件来提供加密、认证和访问控制等安全措施。 6. **研究挑战与前景**：报告还可能讨论了当前在实现这种服务导向中间件架构时面临的挑战，如能耗、复杂性管理和扩展性，以及未来可能的研究方向和商业应用潜力。通过阅读这份报告，参会者和行业专家能够了解到如何利用服务导向中间件提升无线传感器网络的互通性和整体性能，这对于推动未来网络的发展具有重要的理论指导和实践意义。

Future Network & MobileSummit 2010 Conference Proceedings

Paul Cunningham and Miriam Cunningham (Eds)

IIMC International Information Management Corporation, 2010

ISBN: 978-1-905824-16-8

Showcase Paper

A Service Oriented Middleware

Architecture for Wireless Sensor Networks

Hamidreza Abangar, Payam Barnaghi, Klaus Moessner, Anita Nnaemego, Karthik

Balaskandan, Rahim Tafazolli

Centre for Communication Systems Research, University of Surrey, Guildford, UK

Tel: +44 (0)1483 300800, Fax: +44 (0)1483 300803, {h.abangar, p.barnaghi, k.moessner,

a.nnaemego, k.balaskandan, r.tafazolli}@surrey.ac.uk

Abstract: Increasingly distributed sensor networks and in particular Wireless Sensor

Network (WSN) platforms are available on the market, these platforms usually

implement protocols such as 6LowPan or other IEEE 802.15 based protocols. This

leads to a certain degree of heterogeneity which in turn limits the potential

interoperability between the individual nodes and platforms. This paper argues for a

middleware platform that closes this interoperability gap. It discusses the range of

potential technologies that could be deployed and evaluates their advantages and

disadvantages. Finally it provides a SOA based middle approach along with the

description of a proof of concept implementation.

Keywords: Sensor Networks, Middleware, Service Oriented Architecture.

1. Introduction

Sensor nodes usually consist of small computational devices which have limited processing

capabilities and power resources. These devices are often provided by different vendors and

have various hardware and software platforms. The variation of specifications and

operations in sensor nodes introduces a major issue in providing interoperable

environments in heterogeneous sensor networks. Introducing sensor middleware to the

sensor network architecture, as common interfaces, enables the systems to utilise sensor

nodes in heterogeneous environments without being involved in diversity and heterogeneity

of sensor node platforms. The sensor middleware can be implemented as a Web service and

defines standard interfaces to interact with client applications. The middleware will handle

the requests of sensor nodes, provides a temporary data storage for streaming sensor data,

and decides on how and when to query and access the data from sensor nodes. In this

scenario a middleware component which can be run on more powerful machines, plays the

main role in interaction with clients and network services. The middleware will use

intelligent mechanisms to decide if the data can be supplied from the temporary storage, or

if communication with the sensor node is required to acquire a new measurement and/or

observation. This enables power savings and provides efficient request processing and

delivery in dealing with sensor data. Sensor gateways communicate with sensor nodes

through a wrapper which act like a plug-in for each type of sensors. Figure 1 illustrates use

of a middleware component (i.e. gateway) in a distributed sensor network framework.

In this paper we describe a Service Oriented Architecture (SOA) for a middleware

component which mediates data exchange between heterogonous sensor platform and Web

applications and services in a unified way. The paper describes the common architecture

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