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 [...]

Privacy Preserving Mobility Control Protocols in Wireless Sensor Networks

Abstract With the development of technology, wireless sensor networks (WSNs) performing sensing and communication tasks will be widely deployed in the near future because they greatly extend our ability to monitor and control the physical environment and improve the accuracy of information gathering. Since the sensors are usually deployed in hostile environments and cannot get [...]

SixthSense: A Wearable Gestural Interface

Abstract In this note, we present SixthSense, a wearable gestural interface that augments the physical world around us with digital information and lets us use natural hand gestures to interact with that information. By using a tiny projector and a camera coupled in a pendant like mobile wearable device, SixthSense sees what the user sees [...]

Ambient Intelligence at the Beach

Abstract  We describe an experimental public resource monitoring system that combines sensor data and human input to create a new descriptor of ambient water conditions. We call this new metric the swimming pleasure measure. We give an overview of how it is composed, how it relates to existing public water health monitoring efforts and how [...]

“It’s not that I don’t have problems, I’m just not putting them on Facebook”: Challenges and Opportunities in Using Online Social Networks for Health

Abstract To understand why and how people share health information online, we interviewed fourteen people with significant health concerns who participate in both online health communities and Facebook. Qualitative analysis of these interviews highlighted the ways that people think about with whom and how to share different types of information as they pursue social goals [...]

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 [...]

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. [...]