Perception beyond the Here and Now

Abstract Emerging sensor-equipped computing devices are overcoming longstanding temporal and spatial boundaries to human perception. Comments This short paper considers the impact of sensor-equipped computing devices on the temporal and spatial limitations of the five senses of human perception and suggests that completely new modes of self and environmental perception might emerge in the near [...]

Body Area Networks: A Survey

Abstract Advances in wireless communication technologies, such as wearable and implantable biosensors, along with recent developments in the embedded computing area are enabling the design, development, and implementation of body area networks. This class of networks is paving the way for the deployment of innovative healthcare monitoring applications. In the past few years, much of [...]

Survey on Contemporary Remote Surveillance Systems for Public Safety

Abstract This paper reviews concisely the historical development and current state of the three different generations of contemporary surveillance systems. Recently, in addition to the employment of the incessantly enlarging variety of sensors, the inclination has been to utilize more intelligence and situation awareness capabilities to assist the human surveillance personnel. The most recent generation [...]

Privacy-Aware Object Representation for Surveillance Systems

Abstract Real-time object tracking, feature assessment and classification based on video are enabling technologies for improving situation awareness of human operators as well as for automated recognition of critical situations. To bridge the gap between video signal-processing output and spatio-temporal analysis of object behavior at the semantic level, a generic and sensor-independent object representation is [...]

Power Grids as Complex Networks. Typology and Fragility

Abstract We almost certainly agree that the harnessing of electricity can be considered the most important technological advance of the twentieth century. The development that allows this control is the power grid, an intricate system composed of generators, substations and transformers connected by cable lines hundreds of kilometers long. Its presence is nowadays so intertwined [...]

A Survey of Technical Requirements and Consumer Application Standards for IP-based Smart Grid AMI Network

Abstract The smart grid is a new advanced electrical network promoted by the government to address environmental sustainability, energy generation, distribution and consumption efficiency issues. As one of the enabling technologies, Advanced Metering Infrastructure refers to systems which measure, collect and analyze energy usage, and interact with advanced devices such as smart meters through various [...]

Powering Wireless Sensor Networks Nodes in Northern Europe Using Solar Cell Panel for Energy Harvesting

Abstract Harvesting energy from the sun is the most effective technology for outdoor applications. A combination of solar cells and chargeable batteries gives nodes with potentially eternal lifetime. The sun irradiance varies through the day and through the seasons, and is strongly dependent on the latitude. This must be taken into account if a wireless [...]

Understanding and Using Rendezvous to Enhance Mobile Crowdsourcing Applications

Abstract Researchers are exploring the rendezvous concept—bringing sensors close to one another in space or time—as a way to make sense of disparate data collected by individuals. Applications such as participatory atmospheric sensing illustrate the potential of rendezvous to help create powerful mobile applications. Comments This paper describes an attempt to use web and mobile technologies [...]

Fundamentals of Large Sensor Networks: Connectivity, Capacity, Clocks, and Computation

Abstract Sensor networks potentially feature large numbers of nodes. The nodes can monitor and sense their environment over time, communicate with each other over a wireless network, and process information that they exchange with each other. They differ from data networks in that the network as a whole may be designed for a specific application. [...]

Sensor Integration in a Wireless Sensor Network System for Environmental Monitoring System

Abstract This paper presents the implementation of the event-driven Wireless Sensor Network (WSN), which is used for environmental monitoring using soil moisture sensors. The problem faced is that the current Wireless Soil Sensor Networks are not reactive to the weather conditions around it. Which means it takes reading samples at constant rate throughout its operation. [...]