Affiliations: Instituto de Telecomunicações,
University of Beira Interior, Covilhã, Portugal | Pontifícia Universidade Católica do
Paraná (PUC-PR), Londrina, Brazil
Note: [] Corresponding author: Joel J.P.C. Rodrigues, Instituto de
Telecomunicações, University of Beira Interior, Covilhã,
Portugal. E-mail: joeljr@ieee.org.
Abstract: Wireless Sensor Networks (WSNs) belongs to a new trend in technology
in which tiny and resource constrained devices are wirelessly interconnected
and are able to interact with the surrounding environment by collecting data
such as temperature and humidity. Recently, due to the huge growth in the use
of mobile devices with Internet connection, smartphones are becoming the center
of future ubiquitous wireless networks. Interconnecting WSNs with smartphones
and the Internet is a big challenge and new architectures are required due to
the heterogeneity of these devices. Taking into account that people are using
smartphones with Internet connection, there is a good opportunity to propose a
new architecture for wireless sensors monitoring using push notifications and
smartphones. Then, this paper proposes a ubiquitous approach for WSN monitoring
based on a REST Web Service, a relational database, and an Android mobile
application. Real-time data sensed by WSNs are sent directly to a smartphone or
stored in a database and requested by the mobile application using a
well-defined RESTful interface. A push notification system was created in order
to alert mobile users when a sensor parameter overcomes a given threshold. The
proposed architecture and mobile application were evaluated and validated using
a laboratory WSN testbed and are ready for use.
Keywords: Wireless Sensor Networks, Internet of Things, ubiquitous computing, network monitoring, mobile computing, RESTful Web Services, push notifications, Android applications
