Networking Reference
In-Depth Information
Chapter 3
SmartSensor: An Infrastructure
for the Web of Things
Abstract In order to fast populate the Web of Things, approaches based on
ubiquitous protocols and standards are attractive to promote interoperability among
heterogeneous devices and to facilitate the development of applications on top of
such devices. In this context, this Chapter presents SmartSensor, an infrastructure
for WoT built at the middleware layer and based on current efforts of standardiza-
tion, with the main purpose of integrating Wireless Sensor Networks (WSNs) to
the Web in a transparent, seamless and flexible way. By integrating WSNs to the
Web via SmartSensor, sensor-generated data can be provided to client applications
or users exactly in the same way as documents or other Web resources. Furthermore,
SmartSensor considers the emerging scenario where multiple WSNs from different
technologies and owners are integrated in a unique, virtual sensing infrastructure,
enabling data from different networks to be provided to various applications run-
ning on top of them. In this Chapter, the infrastructure architecture and operation are
briefly presented, emphasizing the features that make SmartSensor fully complaint
to the WoT paradigm.
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Keywords
Internet of Things (IoT)
Web of Things (WoT)
Wireless sensor
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networks
REST
HTTP
SmartSensor architecture
3.1 Overview
Current approaches to integrate smart devices to the Internet have several drawbacks,
and alternative architectures need to be proposed and evaluated so that the Web of
Things (WoT) paradigm is fully realized. In particular, in order to fast populate the
Web of Things, approaches based on ubiquitous protocols and standards would pro-
mote interoperability among heterogeneous devices acting as data providers, and
facilitate the development of applications that make use of such data. In this con-
text, this Chapter presents SmartSensor, an infrastructure for the WoT built at the
 
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