In this paper we use sensor-annotated abstraction hierarchies (Reising & Sanderson, 1996, 2002a, b) to show that unless appropriately instrumented, configural displays designed according to the principles of ecological interface design (EID) might be vulnerable to misinterpretation when sensors become unreliable or are unavailable. Building on foundations established in Reising and Sanderson (2...

This paper presents two case histories of the use of wireless sensor Mote technologies. These are devices that incorporate communications, processing, sensors, sensor fusion, and power source into a package currently about two cubic inches in size networked autonomous sensor nodes. The first case discussed is the November, 2001, instrumentation of a blastinduced liquefaction test in Tokachi Por...

In most process industries, periodic sensor calibrations are required to assure sensors are operating properly. Out-of-calibration sensors can result in decreased product quality, possibly causing a loss in revenue. Real-time, continuous sensor calibration monitoring is desirable to assure product quality and reduce maintenance costs associated with performing unnecessary manual sensor calibrat...

We report the technical realization and performance of thirty temporary seismic broadband deployments for the AlpArray project in eastern Austria and western Slovakia. Reftek 151 60s sensors and Reftek 130/130S digitizers form the core instrumentation of our seismic stations; these are mostly installed inside abandoned or occasionally used basements or cellars in small buildings or huts. We des...

one of the main challenges in wireless sensor network is energy problem and life cycle of nodes in networks. several methods can be used for increasing life cycle of nodes. one of these methods is load balancing in nodes while transmitting data from source to destination. directed diffusion algorithm is one of declared methods in wireless sensor networks which is data-oriented algorithm. direct...

Given the explosion in number and types of sensor nodes, the next generation of sensor management systems must focus on identifying and acquiring valuable information from this potential flood of sensor data. Thus an emerging problem is deciding what to produce, where, for whom, and when. Identifying and making tradeoffs involved in information production is a difficult problem that market-base...

Sensors are used in many devices and systems to provide information on the parameters being measured or to identify the states of control. In recent years, the concept of computer networking has gradually migrated into the sensor community, and the trend in industry is moving toward distributed control with intelligent sensing architecture. The rapid development and emergence of smart sensor an...

This paper describes a virtual musical instrument based on the scanned synthesis technique and implemented in Max-Msp. The device is composed of a computer and three gesture sensors. The timbre of the produced sound is rich and changing. The instrument proposes an intuitive and expressive control of the sound thanks to a complex mapping between gesture and sound.

Body area networks is one of the types of wireless area networks which has been created to optimize utilizing hospital resources and for earlier diagnosis of medical symptoms, and ultimately to reduce the cost of medical care. This network like most of the wireless networks is without infrastructure and the embedded sensor nodes in the body have limited energy. Hence, the early power completion...

 Mobile sensor networks rely heavily on inter-sensor connectivity for collection of data. Nodes in these networks monitor different regions of an area of interest and collectively present a global overview of some monitored activities or phenomena. A failure of a sensor leads to loss of connectivity and may cause partitioning of the network into disjoint segments. A number of approaches have be...