|
WSN
Wireless sensor networks (WSNs) refer to networks of spatially dispersed and dedicated sensors that monitor and record the physical conditions of the environment and forward the collected data to a central location. WSNs can measure environmental conditions such as temperature, sound, pollution levels, humidity and wind. These are similar to wireless ad hoc networks in the sense that they rely on wireless connectivity and spontaneous formation of networks so that sensor data can be transported wirelessly. WSNs monitor physical conditions, such as temperature, sound, and pressure. Modern networks are bi-directional, both collecting data and enabling control of sensor activity. The development of these networks was motivated by military applications such as battlefield surveillance. Such networks are used in industrial and consumer applications, such as industrial process monitoring and control and machine health monitoring. A WSN is built of "nodes" – from a few to hundreds or th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Conference On Wireless Sensor Networks
The European Conference on Wireless Sensor Networks (EWSN) is an annual academic conference on wireless sensor networks. Although there is no official ranking of academic conferences on wireless sensor networks, EWSN is widely regarded as the top European event in sensor networks. EWSN Events EWSN started in year 2004: EWSN 2015 Porto, Portugal, February 9–11, 2015 EWSN 2014 Oxford, UK, February 17–19, 2014 EWSN 2013 Ghent, Belgium, February 13–15, 2013 EWSN 2012 Trento, Italy, February 15–17, 2012 EWSN 2011 Bonn, Germany, February 23.25, 2011 EWSN 2010 Coimbra, Portugal, February 17–19, 2010 EWSN 2009 Cork, Ireland, February 11–13, 2009 EWSN 2008 Bologna, Italy, January 30–31, February 1, 2008 EWSN 2007 Delft, The Netherlands, January 29–31, 2007 EWSN 2006 Zurich, Switzerland, February 13–15, 2006 EWSN 2005 Istanbul, Turkey, January 31 - February 2, 2005 EWSN 2004 Berlin, Germany, January 19–21, 2004 History EWSN started in year 2004 and the prime motivatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensor Node
A sensor node, also known as a mote (chiefly in North America), is a node in a sensor network that is capable of performing some processing, gathering sensory information and communicating with other connected nodes in the network. A mote is a node but a node is not always a mote. History Although wireless sensor nodes have existed for decades and used for applications as diverse as earthquake measurements to warfare, the modern development of small sensor nodes dates back to the 1998 Smartdust project and the NASA Sensor Web One of the objectives of the Smartdust project was to create autonomous sensing and communication within a cubic millimeter of space. Though this project ended early on, it led to many more research projects. They include major research centres in Berkeley NEST and CENS. The researchers involved in these projects coined the term ''mote'' to refer to a sensor node. The equivalent term in the NASA Sensor Webs Project for a physical sensor node is ''pod'', alth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Harvesting
Energy harvesting (EH, also known as power harvesting or energy scavenging or ambient power) is the process by which energy is derived from external sources (e.g., solar power, thermal energy, wind energy, salinity gradients, and kinetic energy, also known as ambient energy), and then captured, and stored for small, wireless autonomous devices, like those used in wearable electronics and wireless sensor networks. Energy harvesters usually provide a very small amount of power for low-energy electronics. While the input fuel to some large-scale generation costs resources (oil, coal, etc.), the energy source for energy harvesters is present as ambient background. For example, temperature gradients exist from the operation of a combustion engine and in urban areas, there is a large amount of electromagnetic energy in the environment because of radio and television broadcasting. One of the earliest applications of ambient power collected from ambient electromagnetic radiation (EMR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Ad Hoc Network
A wireless ad hoc network (WANET) or mobile ad hoc network (MANET) is a decentralized type of wireless network. The network is ad hoc because it does not rely on a pre-existing infrastructure, such as routers in wired networks or access points in wireless networks. Instead, each node participates in routing by forwarding data for other nodes, so the determination of which nodes forward data is made dynamically on the basis of network connectivity and the routing algorithm in use. In the Windows operating system, ad hoc is a communication mode (setting) that allows computers to directly communicate with each other without a router. Wireless mobile ad hoc networks are self-configuring, dynamic networks in which nodes are free to move. Such wireless networks lack the complexities of infrastructure setup and administration, enabling devices to create and join networks "on the fly". Each device in a MANET is free to move independently in any direction, and will therefore change it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multi-hop Routing
Multi-hop routing (or multihop routing) is a type of communication in radio networks in which network coverage area is larger than radio range of single nodes. Therefore, to reach some destination a node can use other nodes as relays. Since the transceiver is the major source of power consumption in a radio node and long distance transmission requires high power, in some cases multi-hop routing can be more energy efficient than single-hop routing. Typical applications of multi-hop routing: * Wireless sensor networks * Wireless mesh networks * Mobile ad hoc networks * Smart phone ad hoc network Smartphone ad hoc networks (SPANs; also ''smart phone ad hoc networks'') are wireless ad hoc networks that use smartphones. Once embedded with ad hoc networking technology, a group of smartphones in close proximity can together create an ad hoc ...s * Mobile networks with stationary multi-hop relays References {{reflist Wireless networking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Conference On Information Processing In Sensor Networks
IPSN, the IEEE/ACM International Conference on Information Processing in Sensor Networks, is an academic conference on sensor networks with its main focus on information processing aspects of sensor networks. IPSN draws upon many disciplines including signal processing, signal and image processing, information theory, information and coding theory, computer networking, networking and Protocol (computing), protocols, distributed algorithms, wireless communications, machine learning, embedded systems design, and data bases and information management. IPSN Events IPSN started in 2001, and following is a list of IPSN events from 2001 to 2014: * 13th IPSN 2014, Berlin, Germany, April 15–17, 2014 * 12th IPSN 2013, Philadelphia, PA, USA, April 8–11, 2013 * 11th IPSN 2012, Beijing, China, April 16–19, 2012 * 10th IPSN 2011, Chicago, IL, USA, April 12–14, 2011 * 9th IPSN 2010, Stockholm, Sweden, April 12–16, 2010 * 8th IPSN 2009, San Francisco, California, USA, April 13–16, 2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conference On Embedded Networked Sensor Systems
SenSys, the ACM Conference on Embedded Networked Sensor Systems, is an annual academic conference in the area of embedded networked sensors. About SenSys ACM SenSys is a selective, single-track forum for the presentation of research results on systems issues in the area of embedded networked sensors. The conference provides a venue to address the research challenges facing the design, deployment, use, and fundamental limits of these systems. Sensor networks require contributions from many fields, from wireless communication and networking, embedded systems and hardware, distributed systems, data management, and applications. SenSys welcomes cross-disciplinary work. Ranking Although there is no official ranking of academic conferences on wireless sensor networks, SenSys is widely regarded by researchers as one of the two (along with IPSN) most prestigious conferences focusing on sensor network research. SenSys focuses more on system issues while IPSN on algorithmic and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MobiCom (conference)
MobiCom, the International Conference on Mobile Computing and Networking, is a series of annual conferences sponsored by ACM SIGMOBILE dedicated to addressing the challenges in the areas of mobile computing and wireless and mobile networking. Although no rating system for computer networking conferences exists, MobiCom is generally considered to be the best conference in these areas, and it is the fifth highest-impact venue in all of Computer Science. The quality of papers published in this conference is very high. The acceptance rate of MobiCom typically around 10%, meaning that only one tenth of all submitted papers make it through the tough peer review filter.Kevin Almeroth's Conference Statistics, http://www.cs.ucsb.edu/~almeroth/conf/stats/#mobicom According to SIGMOBILE, "the MobiCom conference series serves as the premier international forum addressing networks, systems, algorithms, and applications that support the symbiosis of mobile computers and wireless networks. Mobi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springer Science & Business Media
Springer Science+Business Media, commonly known as Springer, is a German multinational publishing company of books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing. Originally founded in 1842 in Berlin, it expanded internationally in the 1960s, and through mergers in the 1990s and a sale to venture capitalists it fused with Wolters Kluwer and eventually became part of Springer Nature in 2015. Springer has major offices in Berlin, Heidelberg, Dordrecht, and New York City. History Julius Springer founded Springer-Verlag in Berlin in 1842 and his son Ferdinand Springer grew it from a small firm of 4 employees into Germany's then second largest academic publisher with 65 staff in 1872.Chronology ". Springer Science+Business Media. In 1964, Springer expanded its business internationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded drumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geo-fence
A geofence is a virtual perimeter for a real-world geographic area. A geofence could be dynamically generated (as in a radius around a point location) or match a predefined set of boundaries (such as school zones or neighborhood boundaries). The use of a geofence is called geofencing, and one example of use involves a location-aware device of a location-based service (LBS) user entering or exiting a geofence. Geofencing approach is based on the observation that users move from one place to another and then stay at that place for a while. This method combines awareness of the user's current location with awareness of the user's proximity to locations that may be of interest. This activity could trigger an alert to the device's user as well as messaging to the geofence operator. This info, which could contain the location of the device, could be sent to a mobile telephone or an email account. History Geofencing was invented in the early 1990’s and patented in 1995 by American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depth Camera
Range imaging is the name for a collection of techniques that are used to produce a 2D image showing the distance to points in a scene from a specific point, normally associated with some type of sensor device. The resulting range image has pixel values that correspond to the distance. If the sensor that is used to produce the range image is properly calibrated the pixel values can be given directly in physical units, such as meters. Types of range cameras The sensor device that is used for producing the range image is sometimes referred to as a ''range camera'' or ''depth camera''. Range cameras can operate according to a number of different techniques, some of which are presented here. Stereo triangulation Stereo triangulation is an application of stereophotogrammetry where the depth data of the pixels are determined from data acquired using a stereo or multiple-camera setup system. This way it is possible to determine the depth to points in the scene, for example, from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
