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In Wireless Sensor Networks (WSN), when a hardware error is not identified and promptly corrected, all monitoring of a sensor network is compromised. This work presents a new approach to centralized fault management system for 6LoWPAN WSN. The system is based on two fault detection levels. A first level is performed locally, by all sensors within the network, using statistical methods. The second...
Minimally invasive robotic surgery techniques are becoming popular thanks to their enhanced patient benefits, including shorter recovery time, better cosmetic results and reduced discomforts. Less invasive procedures would be achieved with the use of Medical Capsule Robots (MCRs). These devices are characterized by low power requirements and small dimensions as well as uncompromising safety. MCRs...
Valuable information from acoustic signals has not been fully considered into real applications associated with assisting people. In fact, the assessment of acoustic signals as an input parameter for localization techniques has useful applications in detecting the presence of living beings trapped in emergency situations by processing any type of sound emitted in face of danger. Indeed, acoustic signals...
We present WRENSys, a system that allows for a low cost, rapidly deployable, large-scale and easy to maintain wireless mobile network, with minimal subject interference, to study contact networks of a population. We discuss our experiences with several hardware designs, including our new WREN sensor, base stations for charging and programming 2000 motes in parallel, software applications, and our...
In many applications, the exact location of the sensor nodes is unknown after deployment. Localization is a process used to locate sensor nodes' positional coordinates, which is vital information. The localization is generally assisted by anchor nodes that are also sensor nodes but with known locations. Anchor nodes generally are expensive and need to be optimally placed for effective localization...
In this paper, we present a performance analysis of the communication stack of the PermaDozer application. Our offline analysis is based on long-term performance data from three diverse real-world wireless sensor network deployments. Two of the deployments considered are located in the Swiss mountains at 3.500 meters a.s.l., the third deployment is located along a river in the Swiss midlands. Apart...
The internet of things (IoT) is a network to realize interconnects between almost any object and web services. It can be applied in many domains, such as radio frequency identification (RFID), wireless sensor network(WSN) and so on. The application of IoT brings us the higher efficiency and the more convenient life. In this paper, we propose a new IoT application framework to search the optimal routes...
Node lifetime is a key performance metric in wireless sensor network (WSN) research. Simplistic assumptions and naïve lifetime estimation techniques invariably prove to be extremely unreliable in practice, to the point that premature battery depletion notoriously affects real-world deployments. In this paper we adopt an experimental approach and employ various types of real-world batteries to determine...
Run-time monitoring of energy consumption in wireless sensor networks is a necessary step for the production of energy efficient applications. The demo will show a software system that helps the developer to profile applications based on TinyOS in terms of energy consumption.
Design and development of wireless sensor network applications adds an additional layer of complexity to traditional computer systems. The developer needs to be an expert in resource constrained embedded devices as well as traditional desktop computers. We propose Tinylnventor, an open-source development environment that takes a holistic approach to implementing sensor network applications. Users...
Sensor network has given rise to a comprehensive view of various environments through their harnessed data. Usage of the data is, however, limited since the current sensor network paradigm promotes isolated networks that are statically tasked. In recent years, users have become mobile entities that require constant access to data for efficient processing. Under the current limitations of sensor networks,...
Recent advancements in micro-computing have provided an exponential increase in the capabilities of a wide range of devices and have allowed the implementation of complex mobile wireless sensor networks (mWSNs). Common battery-powered sensor nodes require security techniques that eliminate redundant processing overhead for resource conservation, without compromising the overall network performance...
Wireless sensor network (WSN, Wireless Sensor Network) is a kind of autonomous network with sensor nodes. It is different from traditional RFID system that the WSN is through the distribution of sensor nodes in different locations to monitor environmental conditions. The collected data from sensor nodes were sent back to the base station for further analysis and processing to compensate the shortage...
Wireless sensor networks represent a fascinating domain, with a wide area of applications in various environments. For this reason, in the world of wireless networks professionals, there is a major interest concerning the security issues in network communication and data flow between a sensor network and other types of intelligent devices. This paper proposes a new intrusion detection system approach...
This paper addresses support for energy efficient single-hop communications in Environmental Monitoring Wireless Sensor Networks (WSN). The main contributions are twofold firstly; the identification of scenarios where single hop communication, between multiple sensors and a base station is both feasible and offers benefits with respect to power preservation. Secondly, the design implementation and...
In this paper, a new wireless sensor network (WSN) for large electrical equipment on-line monitoring is proposed, designed and implemented. The design of the wireless monitoring system emphasizes to solve the problems of traditional wired on-line monitoring system wiring too much, cost too high, fault diagnosing and maintaining difficulty and so on. The hardware design for wireless sensor network...
In the last decade, wireless sensor network (WSN) domain had benefit from a huge development effort and a major technological boom. These wireless networks equipped with tiny sensors can be used in a wide area of applications and various environments. This is one of the reasons that conducted to a continuous concern for improving the communication and the data flow between a WSN and other types of...
This paper presents the performance analysis of Wireless Sensor Network (WSN) used in the high-end applications such as weapons sensor ship, biomedical applications, habitat sensing and seismic monitoring. Recently WSN also focuses on national security applications and consumer applications. This project shall demonstrate the performance of WSN models, which have been developed using PIC. Temperature...
Key management is considered as the fundamental part of any secure communication. A secure wireless sensor network communication protocol relies on an efficient key management system. In sensor networks some random pre-distribution schemes are proposed for key management protocols. Connectivity and resiliency are two important criteria in key management. There is a trade-off between connectivity and...
Often, the dependency of sensor network applications on sensor node hardware architecture and sensor network topology restricts their portability. That is, when the application is ported to a different architecture, the program would often need to be changed in order to adapt to the new architecture. By providing a higher level of abstraction using the Bird-Meertens Formalism, the portability of programs...
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