Search results for "Wire"

showing 10 items of 1383 documents

A hybrid network for maritime on-board communications

2012

Current maritime on-board communications have to be enhanced for safety and security, where ubiquitous technologies can help, together with providing comfort and convenience to the crew and passengers. Employing wireless sensor networks on board is one recent practice of implementing ubiquitous technology for ships, where further study is needed because of the connectivity challenges. Meanwhile, it is important for an on-board communication system to be reliable and flexible for handling emergency situations. In this paper, we propose a solution of employing ubiquitous technology on ships in a way that both connectivity and emergency handling are examined. Two key aspects of this proposal a…

Key distribution in wireless sensor networksUbiquitous computingbusiness.industryComputer scienceHybrid systemThe InternetWired communicationCommunications systembusinessWireless sensor networkBackward compatibilityComputer network2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)
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Towards a layer-less network architecture — A case from Wireless Sensor Networks

2011

Ad hoc and Wireless Sensor Networks (WSNs) form a challenging domain for existing network protocols and paradigms to fit into. The traditional models conceived for wired networking and adapted for wireless and mobile environments provide an inefficient and ungraceful outcome when exercised against highly dynamic and highly mobile nature of ad hoc wireless sensor networks. Efforts are being made to tweak existing (and sometimes create from scratch) principles and models that can provide a concrete framework for such newer paradigms. The momentum of the traditional layered architecture carried over from the wired networks to infrastructure based wireless networks pushes the same approaches as…

Key distribution in wireless sensor networksVehicular ad hoc networkWireless ad hoc networkComputer sciencebusiness.industryWireless networkDistributed computingMobile wireless sensor networkMobile ad hoc networkAd hoc wireless distribution servicebusinessWireless sensor networkComputer network2011 2nd International Conference on Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology (Wireless VITAE)
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A Multisensor Proposal for Wireless Sensor Networks

2008

Every sensor node in a wireless sensor network (WSN) has a microcontroller, a transmitter/receiver and a sensor. It is able to acquire data from specific point in a real environment and transmit it through the WSN. Sometimes it is useful to gather different type of data from the same place in order to obtain a final result. In the related literature, very few works are about sensing different parameters using a unique sensor. In this paper we propose a Wireless IP multisensor that is able to gather several types of data from the environment and transmit the result of their combination. Our proposal decision has being mainly based on its development costs, its expansion capacity and its flex…

Key distribution in wireless sensor networksVisual sensor networkComputer sciencebusiness.industrySensor nodeMobile wireless sensor networkWirelessComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMSbusinessSensor fusionWireless sensor networkData transmissionComputer network2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)
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A Note on the Local Minimum Problem in Wireless Sensor Networks

2013

The Local Minimum Problem occurs in geographic routing scenarios. In this paper two solutions to this problem for certain network topologies are proposed. By using the notion of virtual coordinates a theoretical and a practical constructions are presented. A distributed algorithm for the practical approach is proposed.

Key distribution in wireless sensor networksWi-Fi arrayComputer scienceWireless ad hoc networkbusiness.industryDistributed algorithmMobile wireless sensor networkGeographic routingNetwork topologybusinessWireless sensor networkComputer network
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On Applications of Wireless Sensor Networks

2009

Wireless Sensor Networks (WSN) are ad-hoc networks in which small independent sensor nodes have limited energy, computational resources and wireless communication capabilities. Recently, both academia and industry have shown great interest in the area of Wireless Sensor Networks. This paper focuses on the practical applications in commerce and feasible future employment of WSNs. Continued advances of wireless communication technologies have led to the following fields of applications: habitat and environmental monitoring, security of buildings and property, oil and gas installations, mines and tunnels, emergency medical care, military applications. In the near future WSNs will certainly ent…

Key distribution in wireless sensor networksWi-Fi arrayWireless networkComputer sciencebusiness.industrySensor nodeComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSMobile wireless sensor networkWireless WANFixed wirelessTelecommunicationsbusinessWireless sensor network
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Coded addresses in multi-hop wireless sensor networks

2014

Key distribution in wireless sensor networksWi-Fi arraybusiness.industryComputer scienceMobile wireless sensor networkbusinessWireless sensor networkComputer networkHop (networking)2014 International Wireless Communications and Mobile Computing Conference (IWCMC)
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CiNetView - Graphic Interface for Wireless Sensor Network Deployment and Monitoring

2010

Reliable communication is crucial for successful deployment of a wireless sensor network. Many environmental factors can affect the performance of radio links, and the deployment of a network without real-time information about link qualities can be a demanding task. This paper describes the CiNetView application that is intended to support the deployment and monitoring of wireless sensor network. CiNetView is based on diagnostic information collected by sensor nodes, and it allows the user to see a graphical presentation of the network topology and to monitor the network diagnostic information in real time.

Key distribution in wireless sensor networksWireless networkComputer sciencebusiness.industryVisual sensor networkReal-time computingMobile wireless sensor networkWireless WANbusinessWireless sensor networkSensor webComputer networkNetwork simulation2010 Fourth International Conference on Sensor Technologies and Applications
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The Role of ICT Actors and Networks in Development: The Case Study of a Wireless Project in Nepal

2011

The role of ICT actors in the formation and extension of ICT4D projects is important. The actors through their extended network and aligned interest can enhance the effectiveness of the project which in turn enables socioeconomic development opportunities. However, few studies have been conducted to understand the role of these central players. The objective of this paper, therefore, is to address this knowledge gap by conducting a qualitative case study in the Myagdi district in the mountain region of Nepal. In this study we explored the Nepal Wireless Networking Project (NWNP) and examined how an activist started it from one mountain village and gradually extended across more than 150 vil…

Knowledge managementbusiness.industryWireless networkmedia_common.quotation_subjectSocioeconomic developmentPublic relationsNegotiationIdentification (information)Information and Communications TechnologySociologyInformation and communication technologies for developmentbusinessFunctional illiteracyInformation Systemsmedia_commonDependency (project management)The Electronic Journal of Information Systems in Developing Countries
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A Personal LPWAN Remote Monitoring System

2021

Firefighters are equipped with an immobility detector device also called the Personal Alert Safety System (PASS) that is integrated into the user's Self-Contained Breathing Apparatus (SCBA). If a firefighter remains motionless for a certain period of time, a loud audible alert is triggered to notify the Firefighter Assist and Search Team (FAST) deployed in the area of intervention that the wearer of the PASS device is in trouble and in need of rescue. However, this device is not reliable enough since it triggers frequently false positives which lead to developing a tolerance for sounding alarms among the crew. As a consequence, they do not seem to be concerned about it as they should and th…

LPWANEmergency responseComputer scienceCrewFalse positive paradoxLocation awarenessMonitoring systemcomputer.software_genreComputer securitySet (psychology)Wireless sensor networkcomputer2021 International Wireless Communications and Mobile Computing (IWCMC)
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Automated Soil Moisture Monitoring Wireless Sensor Network for Long-Term Cal/Val Applications

2012

The design and development of a wireless sensor network for soil moisture measurement in an unlevelled 10 km × 10 km area, is described. It was specifically deployed for the characterization of a reference area, in campaigns of calibration and validation of the space mission SMOS (Soil Moisture and Ocean Salinity), but the system is easily extensible to monitor other climatic or environmental variables, as well as to other regions of ecological interest. The network consists of a number of automatic measurement stations, strategically placed following soil homogeneity and land uses criteria. Every station includes acquisition, conditioning and communication systems. The electronics are batt…

Land usebusiness.industrycomputer.internet_protocolComputer scienceAutonomous system (Internet)Communications systemTerm (time)The InternetElectronicsTelecommunicationsbusinessWater contentcomputerWireless sensor networkRemote sensingWireless Sensor Network
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