A distributed geospatial infrastructure for Sensor Web
A distributed geospatial infrastructure for Sensor Web
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DOI：
10.1016/j.cageo.2004.06.014
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发表时间：
2005-03-01
影响因子：
4.4
通讯作者：
Tao, CV
中科院分区：
文献类型：
--
作者：
Liang, SHL;Croitoru, A;Tao, CV
迄今为止，利用原位传感技术可以感知100多种物理（光、压力、湿度等）、化学（气体、液体、固体等）和生物（DNA、蛋白质、声学等）特性。随着更便宜、微型、更快和智能的原位传感器的出现，丰富的普适计算设备、无线和移动网络访问以及自主和智能地理空间软件代理的可用性不断增加，分布式网络化原位传感显然成为一种技术趋势。传感器网可以作为一个广泛的监测和传感系统，提供及时、全面、连续和多模式的观测。这种新的地球观测系统为快速同化来自各种传感器（现场和远程）的数据以及准确分析和明智决策开辟了一条新途径。开发传感器网络的关键组成部分之一是构建地理空间信息基础设施，即通过有线或无线网络连接异构现场传感器和远程传感器的主干网。我们首先介绍了传感器网络的革命性概念，并对传感器网络进行了全面的研究。其次，我们描述了 Sensor Web-GeoSWIFT 传感服务的分布式地理空间基础设施的架构，该基础设施充当集成和融合来自空间参考传感器的观测结果的网关。第三，我们演示了 GeoSWIFT 传感服务的原型，它将现有的网络摄像头传感器网络集成到传感器网络中。 (C) 2004 Elsevier Ltd. 保留所有权利。
So far, over 100 physical (light, pressure, humidity, etc.), chemical (gas, liquid, solid, etc.) and biological (DNA, protein, acoustics, etc.) properties can be sensed by using in situ sensing technology. With the presence of cheaper, miniature, faster, and smart in situ sensors, the increasing availability of abundant ubiquitous computing devices, wireless and mobile network access, and autonomous and intelligent geospatial software agents, distributed networked in situ sensing becomes clearly a technological trend. Sensor Webs can perform as an extensive monitoring and sensing system that provides timely, comprehensive, continuous and multi-mode observations. This new earth-observation system opens up a new avenue to fast assimilation of data from various sensors (both in situ and remote) and to accurate analysis and informed decision makings.One of the critical components in developing a Sensor Web is to build a geospatial information infrastructure, a backbone that connects the heterogeneous in situ sensors and remote sensors over the wired or wireless networks. We, firstly, introduce the revolutionary concept of the Sensor Web and provide a comprehensive study of Sensor Web. Secondly, we describe the architecture of a distributed geospatial infrastructure for Sensor Web-GeoSWIFT Sensing Services, which serves as a gateway that integrates and fuses observations from spatially referenced sensors. Thirdly, we demonstrate the prototype of GeoSWIFT Sensing Services that integrates an existing sensor network of webcams into the Sensor Web. (C) 2004 Elsevier Ltd. All rights reserved.