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Table of Contents Introduction...................................................................................................................................... 1 Information to the User .................................................................................................................... 1 Features of the Ubitag ..................................................................................................................... 2 Installation and Operation Instructions ............................................................................................ 3 Switching the Ubitag on for the first time.................................................................................. 3 Fitting or replacing the batteries in the Ubitag.......................................................................... 3 Troubleshooting........................................................................................................................ 4 Ubitag Specifications ....................................................................................................................... 5 Requirements for hand-held UWB device operation....................................................................... 5
1 Introduction The Ubitag V2.5 is a wireless device intended to be used for the real-time location of personnel and hand-held objects. It transmits ultra-wideband (UWB) pulses which are picked up by a network of basestations (Ubisensors), allowing the 3D position of the tag to be found. The use of UWB technology enables greater positioning accuracy than other wireless technologies, because it is much less susceptible to multipath interference effects. Applications of the system include healthcare, workplace productivity, security, retail management and manufacturing. This document describes the features and specifications of the Ubitag, important regulatory information concerning its use, and details on how to diagnose potential problems. Information to the User The Ubitag V2.5 is an ultra-wideband (UWB) wireless device certified under FCC Part 15.519. Its use is subject to technical requirements for hand-held UWB systems. Users should note carefully the following information:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. UWB devices operating under the provisions of this section must be hand held, i.e., they are relatively small devices that are primarily hand held while being operated and do not employ a fixed infrastructure. The use of antennas mounted on outdoor structures, e.g., antennas mounted on the outside of a building or on a telephone pole, or any fixed outdoors infrastructure is prohibited. Antennas may be mounted only on the hand held UWB device. Users should also carefully note the following information:
CAUTION: Any changes or modifications made to the Ubitag which are not expressly approved by the Ubisense Limited could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help. Ubisense Ultra-Wideband Location System Ubitag V2.5 Features of the Ubitag The diagram below shows several important features of the Ubitag:
Programmable LED
(visible though enclosure) UWB antenna Strapping slots Mounting holes Programmable button 2 Ubisense Ultra-Wideband Location System Ubitag V2.5 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. To replace the battery in a Ubitag:
1. Unscrew the four screws in the back of the enclosure 2. Remove the rear of the enclosure to allow access to the battery 3. Slide out the old battery and dispose of carefully 4. Replace the battery with a new one, being careful to observe correct polarity 1 3 4
When the battery has been replaced, the Ubitag will flash its LED to indicate correct start-up, and the Ubisense Location System will then be able to determine the Ubitags location. Replace the PCB back into the front of the enclosure, replace the rear enclosure half and then tighten the four screws removed previously to complete reassembly of the device. Should the Ubitag not flash its LED to indicate correct start-up after the battery has been replaced, remove the battery, check that it is fresh, wait for 30 seconds, and reinsert the battery. Contact your system administrator if you continue to have problems replacing the battery in the Ubitag. Ubisense Ultra-Wideband Location System Ubitag V2.5 4 Troubleshooting The activity of the LEDs on the Ubitag may be used to diagnose potential problems with the device:
Periodic, short (less than 1/10th second) flashes of the LED indicate that the tag is in communication with the local Ubisensor network, and that the device is emitting UWB signals enabling its position to be found. Longer (half-second) flashes of the LED indicate that the tag is searching for signals from the local Ubisensor network, and that tracking functionality is not available at that location. Ensure that the tag is within an area covered by the Ubisense Location System. If you are still unsure as to whether or not the Ubitag is operating correctly, contact your system administrator, who should be able to use Ubisenses monitoring tools to determine the extent and cause of any potential problem.
~10Hz
~2Hz Correct Operation Searching Ubisense Ultra-Wideband Location System Ubitag V2.5 5 FCC Part 15.519 6.954 GHz 1.433 GHz FCC Part 15.249 2402.5MHz 2480.5MHz Ubitag Specifications UWB transmitter section Operates under:
Centre frequency:
-10dB bandwidth:
Conventional radio transceiver Operates under:
Lowest channel frequency:
Highest channel frequency:
General specifications Dimensions (WxHxD):
Power supply:
Operating temperature range:
Requirements for hand-held UWB device operation This section lists the technical requirements laid down in the FCCs rules which must be met by UWB devices operating indoors under 15.519 of those rules. Ubitags operating with a correctly-
installed Ubisense location system will meet these requirements. 39mm x 38mm x 16mm 1 x Panasonic CR2477 3V lithium cell (or equivalent)
-20C to +60C UWB devices operating under the provisions of this section must be hand held, i.e., they are relatively small devices that are primarily hand held while being operated and do not employ a fixed infrastructure. A UWB device operating under the provisions of this section shall transmit only when it is sending information to an associated receiver. The UWB intentional radiator shall cease transmission within 10 seconds unless it receives an acknowledgement from the associated receiver that its transmission is being received. An acknowledgment of reception must continue to be received by the UWB intentional radiator at least every 10 seconds or the UWB device must cease transmitting. The use of antennas mounted on outdoor structures, e.g., antennas mounted on the outside of a building or on a telephone pole, or any fixed outdoors infrastructure is prohibited. Antennas may be mounted only on the hand held UWB device. UWB devices operating under the provisions of this section may operate indoors or outdoors. Ubisense Ultra-Wideband Location System Ubitag V2.5