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Keywords = Waspmote

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19 pages, 11932 KB  
Article
Secure and Efficient Key Coordination Algorithm for Line Topology Network Maintenance for Use in Maritime Wireless Sensor Networks
by Walid Elgenaidi, Thomas Newe, Eoin O’Connell, Daniel Toal and Gerard Dooly
Sensors 2016, 16(12), 2204; https://doi.org/10.3390/s16122204 - 21 Dec 2016
Cited by 7 | Viewed by 5663
Abstract
There has been a significant increase in the proliferation and implementation of Wireless Sensor Networks (WSNs) in different disciplines, including the monitoring of maritime environments, healthcare systems, and industrial sectors. It has now become critical to address the security issues of data communication [...] Read more.
There has been a significant increase in the proliferation and implementation of Wireless Sensor Networks (WSNs) in different disciplines, including the monitoring of maritime environments, healthcare systems, and industrial sectors. It has now become critical to address the security issues of data communication while considering sensor node constraints. There are many proposed schemes, including the scheme being proposed in this paper, to ensure that there is a high level of security in WSNs. This paper presents a symmetric security scheme for a maritime coastal environment monitoring WSN. The scheme provides security for travelling packets via individually encrypted links between authenticated neighbors, thus avoiding a reiteration of a global rekeying process. Furthermore, this scheme proposes a dynamic update key based on a trusted node configuration, called a leader node, which works as a trusted third party. The technique has been implemented in real time on a Waspmote test bed sensor platform and the results from both field testing and indoor bench testing environments are discussed in this paper. Full article
(This article belongs to the Section Sensor Networks)
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15 pages, 558 KB  
Article
Remote Assessment of Cultural Heritage Environments with Wireless Sensor Array Networks
by Henoc Agbota, John E. Mitchell, Marianne Odlyha and Matija Strlič
Sensors 2014, 14(5), 8779-8793; https://doi.org/10.3390/s140508779 - 19 May 2014
Cited by 36 | Viewed by 7710
Abstract
The logistics and cost of environmental monitoring can represent challenges for heritage managers, partly because of the sheer number of environmental parameters to consider. There is a need for a system, capable of monitoring the holistic impact of the environment on cultural materials [...] Read more.
The logistics and cost of environmental monitoring can represent challenges for heritage managers, partly because of the sheer number of environmental parameters to consider. There is a need for a system, capable of monitoring the holistic impact of the environment on cultural materials while remaining relatively easy to use and providing remote access. This paper describes a dosimetric system based on piezoelectric quartz crystal technology. The prototype sensing module consists of an array of piezoelectric quartz crystals (PQC) coated with different metals (Fe, Cu, Ni and Sn) and includes a temperature and relative humidity sensor. The communication module involves an 802.15.4 low-power radio and a GPRS gateway which allows real time visualisation of the measurements online. An energy management protocol ensures that the system consumes very low power between measurements. The paper also describes the results and experiences from two heritage field deployments, at Apsley House in London, UK, and at the Royal Palaces of Abomey in Benin. Evaluation of PQC measurements, temperature, relative humidity and the rate of successful transmission over the communication systems are also reported. Full article
(This article belongs to the Special Issue Sensors for Cultural Heritage Diagnostics)
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18 pages, 489 KB  
Article
A Mobile Robots Experimental Environment with Event-Based Wireless Communication
by María Guinaldo, Ernesto Fábregas, Gonzalo Farias, Sebastián Dormido-Canto, Dictino Chaos, José Sánchez and Sebastián Dormido
Sensors 2013, 13(7), 9396-9413; https://doi.org/10.3390/s130709396 - 22 Jul 2013
Cited by 29 | Viewed by 9717
Abstract
An experimental platform to communicate between a set of mobile robots through a wireless network has been developed. The mobile robots get their position through a camera which performs as sensor. The video images are processed in a PC and a Waspmote card [...] Read more.
An experimental platform to communicate between a set of mobile robots through a wireless network has been developed. The mobile robots get their position through a camera which performs as sensor. The video images are processed in a PC and a Waspmote card sends the corresponding position to each robot using the ZigBee standard. A distributed control algorithm based on event-triggered communications has been designed and implemented to bring the robots into the desired formation. Each robot communicates to its neighbors only at event times. Furthermore, a simulation tool has been developed to design and perform experiments with the system. An example of usage is presented. Full article
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2013)
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