User's Manual

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Ultra-wideband In-Building

Location System

Ubitag V2.1

User’s Manual

Written By

Andy Ward, Paul Webster

Ubisense Limited

St Andrew’s House,

St Andrew’s Road, Chesterton, Cambridge, CB4 1DL, ENGLAND

Tel: +44 (0)1223 535170

Fax: +44 (0)1223 535167

Email: support@ubisense.net

WWW: http://www.ubisense.net/

Revised: February 2007

Summary of content (7 pages)

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Ultra-wideband In-Building Location System Ubitag V2.1 User’s Manual Written By Andy Ward, Paul Webster Ubisense Limited St Andrew’s House, St Andrew’s Road, Chesterton, Cambridge, CB4 1DL, ENGLAND Tel: Fax: Email: WWW: +44 (0)1223 535170 +44 (0)1223 535167 support@ubisense.net http://www.ubisense.
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Table of Contents Introduction ................................................................................................................................. 1 Information to the User................................................................................................................ 1 Features of the Ubitag................................................................................................................. 2 Installation and Operation Instructions..................................
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1 Introduction The Ubitag V2.1 is a wireless device intended to be used for the real-time location of objects within buildings. It transmits ultra-wideband (UWB) pulses which are picked up by a network of basestations (Ubisensors) placed inside the building, allowing the 3D position of the tag to be found. The use of UWB technology enables greater positioning accuracy within buildings than other wireless technologies, because it is much less susceptible to multipath interference effects.
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2 Features of the Ubitag The diagram below shows several important features of the Ubitag: Programmable LEDs Buzzer (Side) UWB antenna Programmable buttons Ubisense – Ultra-wideband In-Building Location System – Ubitag V2.
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3 Installation and Operation Instructions Switching the Ubitag on for the first time The Ubitag is supplied with a battery, which needs to be fitted prior to operating the tag. Fitting or replacing the batteries in the Ubitag The Ubitag uses a Panasonic CR2477 3V lithium coin cell (or equivalent). Ubitags frequently report their battery health to the system via the Ubisensors, so system administrators should be notified by the system when the battery in a particular tag requires replacement.
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4 Troubleshooting The activity of the LEDs on the Ubitag may be used to diagnose potential problems with the device: th Periodic, short (less than 1/10 second) flashes of the green LED indicate that the tag is in communication with the local Ubisensor network, and that the device is emitting ultrawideband signals enabling its position to be found.
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5 Ubitag Specifications UWB transmitter section Operates under: Centre frequency: -10dB bandwidth: FCC Part 15.517 7.365GHz 1.751GHz Conventional radio transceiver Operates under: Lowest channel frequency: Highest channel frequency: FCC Part 15.249 2402.5MHz 2480.