Ultrasound Identification is a real-time locating system (RTLS) or indoor positioning system (IPS) technology used to automatically determine and identify the location of objects with room accuracy.
USID Patient-tag. Foto: Sonitor Technologies
The approach is using simple, inexpensive nodes (badges/tags) attached to the surface of persons, objects and devices, which then transmit an ultrasound signal to communicate their locations to microphone sensors.
Because ultrasound signal wavelengths have short reach, they are confined to lesser distant locations than with wireless transmissions with higher susceptibility to multiple reflection, multipath and through-the-wall multiple room responses. Hence ultrasound-based RTLS is considered a more robust alternative to passive radio-frequency identification (pRFID) and even to active radio-frequency identification (aRFID) in complex indoor environments (such as hospitals), where radio waves get multiply transmitted and reflected, thereby compromising the positioning accuracy. Generally the ultrasound signal does not interfere with sensitive medical equipment.[1]
A handicap of ultrasound nodes is the exposition of the sound transducer at the surface, which prevents from hermetically encapsulating the node. Vapour sterilisation is not offered with these nodes.
Referencesedit
^Greenemeier, Larry. "A Positioning System That Goes Where GPS Can't", Scientific American, 2008-01-23. Retrieved on 2008-04-04.
January 01, 1970
ultrasound, identification, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor,. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Ultrasound Identification news newspapers books scholar JSTOR April 2013 Learn how and when to remove this message Ultrasound Identification is a real time locating system RTLS or indoor positioning system IPS technology used to automatically determine and identify the location of objects with room accuracy USID Patient tag Foto Sonitor Technologies The approach is using simple inexpensive nodes badges tags attached to the surface of persons objects and devices which then transmit an ultrasound signal to communicate their locations to microphone sensors Because ultrasound signal wavelengths have short reach they are confined to lesser distant locations than with wireless transmissions with higher susceptibility to multiple reflection multipath and through the wall multiple room responses Hence ultrasound based RTLS is considered a more robust alternative to passive radio frequency identification pRFID and even to active radio frequency identification aRFID in complex indoor environments such as hospitals where radio waves get multiply transmitted and reflected thereby compromising the positioning accuracy Generally the ultrasound signal does not interfere with sensitive medical equipment 1 A handicap of ultrasound nodes is the exposition of the sound transducer at the surface which prevents from hermetically encapsulating the node Vapour sterilisation is not offered with these nodes References edit Greenemeier Larry A Positioning System That Goes Where GPS Can t Scientific American 2008 01 23 Retrieved on 2008 04 04 Retrieved from https en wikipedia org w index php title Ultrasound Identification amp oldid 975986822, wikipedia, wiki, book, books, library,
