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Low cost electronic platforms based on Atmel microcontroller, as Arduino platform, are used in many applications and in several fields. Indeed, their characteristics in terms of inputs, outputs, CPU and RAM make possible to develop rapid smart-systems for measurement avoiding additional components. CPU and RAM performance allows analyzing complex numerical signals. The aim of this paper is to show...
The global wireless sensor networks market is forecasted to increase at a 14.4% annual growth rate through 2016 [1]. This emerging technology trend is fueled by recent availability of sensors that are smaller, cheaper, and more intelligent. Wireless sensor networks have many potential applications in construction management such as progress tracking, equipment management, surveillance, site safety...
Designing intelligent environments is a complex, interdisciplinary process, performed by experts from different domains. These intelligent environments often consist of wireless sensor/actuator nodes that together form a network to achieve certain goals. While there are many prototyping tools and wireless nodes available, there are few that are suitable for use in interdisciplinary projects for people...
Dinam is a novel approach to simplified rapid prototyping of wireless sensor network applications as well as an according WSN platform. As opposed to the traditional mote-based development archetype, dinam proposes combining the development steps into a single continuous, fluid process that is completely integrated into the node. The dinam concept sensor node integrates all development tools, source...
In this investigation we have prototype a low-power, wireless, reflectance photoplethysmography (PPG) system. The PPG system consisted of a PPG sensor and a workstation. An amplifier circuit is stacked on the bottom of a commercial wireless sensor node to achieve the PPG sensor of wearable size. The PPG sensor detects the local bio-signals and radios the signals to the workstation for display and...
This paper introduces the problem of computing the shortest Euclidean path touring n disjoint circles in 2D. The problem is a generalization of Travelling Salesman Problem (TSP) in Euclidean 2D space and is not a purely combinatorial problem. Based on the author's previous work, this paper proposes an exact algorithm to solve the studied problem. The proposed algorithm can be conducted in layered...
Wildlife tracking and ecological monitoring are important for scientific monitoring, wildlife rehabilitation, disease control, and sustainable ecological development. Yet technologies for both of them are expensive and not scalable. Also it is important to tune the monitoring system parameters for different species to adapt their behavior and gain the best result of monitoring. In this paper, we propose...
In this paper, a software product line (SPL) architecture that explicitly captures common features of realtime object tracking systems using Cricket wireless sensors is presented. A software product line process is also presented including user requirements, architecture design, component development, and systems integration. The focus lies on the application of SPL to object location tracking, such...
We present a simulation framework to investigate the energy efficiency of different routing protocols used in resource constrained wireless sensor networks. Our simulator is modular and provides a flexible tool to build diverse protocols by combining existing building blocks at different layers and to analyse how several factors such as routing strategies, MAC protocols, link and node failures, energy...
This paper deals with an alternative design of an electromagnetic energy harvesting generator for supplying wireless sensors with energy. The developed device is complex mechatronics system which generates an electrical power from an ambient mechanical vibration by use of a suitable construction of electromagnetic generator. The developed design of generator has immobile parts base on rapid prototyping...
In this paper, a new concept for a very flexible and modular prototype platform for rapid prototyping of wireless sensor networks is presented. We propose to use a FPGA with high gate count as core of the platform. The FPGA is utilized to attain 3 major goals for the prototype platform: to emulate arbitrary mote architectures even including smart motes with high system complexity, to realize flexible...
This paper presents a toolsuite for rapid prototyping and implementation of real-time applications on Wireless Sensor Networks. The work is motivated by the need to use WSNs in industrial control contexts, where the sampling rate, the workload is much higher than typical current applications of WSNs, and the real-time constraints are much tighter. We present a simulator for early evaluation of the...
In this paper we present Worldsens, an integrated environment for development and rapid prototyping of wireless sensor network applications. Our environment relies on software simulation to help the designer during the whole development process. The refinement is done starting from the high level design choices down to the target code implementation, debug and performance analysis. In the early stages...
A wireless sensor network is always an integrated part of a system. The physical and logical structure of the system, where the sensor network is integrated, are together with other environmental requirements the constraints for the design of the network and the wireless sensor devices. These requirements are very different for different applications and even for one specific system the requirements...
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