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A wireless sensor network (WSN) is a collection of sensor nodes which can monitor the physical activities and attributes of a whole spectrum of objects and environments. The purpose of collecting this data and processing it in a meaningful manner requires that it adds significant value to the end user. WSN are deployed ever more frequently and applications vary from providing an early alert system...
We present the Energy Neutral Speck (ENS) wireless sensor network platform. The ENS is a mote like platform powered by combination of photo-voltaic and battery power supplies. The design and implementation of the platform are described including the hardware, firmware and operating system along with the architecture and implementation of a software framework for interfacing with the network and visualisation...
A sensor network is applied to various fields from the special application fields such as wild environment monitoring, industrial machine measurement, and military-purpose measurement to the daily application fields such as fire monitoring and pollution monitoring. A Wireless Sensor Network is a wire and wireless network, which consists of several sensor nodes deployed in a certain field. A sensor...
Location systems based on WSN are built using diverse technologies. Factors such as the programming language to implement the location algorithm, the underlying operating system (available libraries, closed APIs,...) and type of hardware node interfaces, frequently drive us to a non-reusable design. Usually, the WSN technology cannot be easily replaceable by another one. We introduce a novel layered...
In this paper a distributed object-oriented framework (DOBS, Distributed Object Based Services) for home service design is presented. This framework eases the development of advanced services able to run in a variety of devices ranging from tiny wireless sensors to powerful multimedia servers. Special emphasis will be made on DOBS main features, its core components, the offered common services and...
Innovation in gateways for data gathering sensor networks has lagged compared to advances in mote-class devices, leaving us with a limited set of options for deploying such systems. In this paper we outline the system design of a gateway that meets the hardware and software demands of data gathering networks and present a prototype implementation of this design using the popular Stargate platform...
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