tobii x60_x120_user_manual

8/7/2019 Tobii X60_X120_User_Manual

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Tobii X60 and X120 Eye Tracker

Tobii X60 & X120

Eye TrackersRevision 3

User Manual:


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Read this manual careully beore connecting and using the eye

tracker

The Tobii X60 and X120 Eye Trackers are or use in oce and home environments.

Do not open the eye tracker!

Non-compliance will result in loss o Warranty! There are no user serviceable components inside andthe risk o electric shock is high due to the presence o Dangerous High Voltages. Contact Tobii sup-port i your eye tracker is not working properly.

Saety o NIR illumination rom the Tobii X Series Eye Trackers

The illuminators o the Tobii X60 and X120 Eye Trackers have been tested at ETL SEMKO, Stockholm,according to IEC/EN 60825-1/A1-A2. The test has shown that the products comply with the standardor IEC/EN 60825-1/A1-A2 class 1 LED products intended to be used or long time exposure.

The standard IEC/EN 60825-1/A1-A2 states an Accessible Emission Limit (AEL) or continuouslong time exposure. This limit is the maximum illumination that a person should be exposed to or eighthours a day many days in a row.

The products are intended to be used by a subject at a distance o approximately 60 cm rom theeye tracker, but the test procedure is specied to be done at a distance o 10 cm. At the regular userdistance the exposure, averaged over time, o light rom the X60/120 to the subject sitting in ront oit is 0.1 % o the allowed limit or long time exposure according to IEC/EN 60825-1/A1-A2 class 1LED products.

Epilepsy warningSome people are susceptible to epileptic seizures or loss o consciousness when exposed to certainfashing lights or light patterns in everyday lie. Such people may have a seizure while watching certainimages or patterns on a monitor. This may happen even i the person has no medical history oepilepsy or has never had any epileptic seizures.

Declaration o Conormity

This equipment has been tested and ound to comply with the limits or a Class B digital device,pursuant to part 15 o the FCC Rules and EMC directive 89/336/EEC. The product also conormswith the directive 73/23/EEC or low voltage.

All Tobii eye trackers are CE-marked, indicating conormity with the essential health andsaety requirements set out in European Directives.

On Saety


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Product Care 4

Quick Start 6

First time usage 6Usage checklist 6

Connecting Tobii Eye Tracker 7Setting up the connection to your computer 7Installing the USB Ethernet Adapter 7Installing eye tracker sotware 7Setting up the network connection to the eye tracker in Windows 8Connecting to the eye tracker in Tobii Studio 9Connecting to the eye tracker in ClearView or Tobii SDK 10Setting the IP address in ClearView 10Changing the data rate 10

Confguration and Settings 11General setup guidelines 11Setup examples 11

Accessing the X120 Conguration Tool 12Setting parameters in the X120 Conguration Tool 12Measuring the active display area 12Measuring the distance to the display or calibration grid 13Measuring the horizontal angle o the eye tracker 13Measuring the vertical angle o the display or calibration grid 13Measuring the height dierence between display and eye tracker 13Using a setup with side oset 14Using a setup with angle oset 14Saving a conguration to le 14Using the conguration 15

Setup Options 15Scene camera setup (tracking real objects) 15Basic monitor setup 17Projection screen setup 17TV setup 18

Appendix I: Eye Tracker Upgrade 19Eye tracker sotware upgrade 19

Appendix II: Troubleshooting Guide 20Problems with the Apple Bonjour Service 20Problems with the peer-to-peer network conguration 20

Appendix I II: Specifcations 21Tobii X60 & X120 technical specications 21

Tobii X60 & X120 Eye Trackers User ManualThis document contains inormation proprietary to Tobii Technology AB . The contents are condentialand any disclosure to persons other than ocers, employees, agents or subcontractors o the owneror licensee o this document, without the prior written consent o Tobii Technology AB, is strictlyprohibited. No part o this publication may be reproduced, stored in retrieval system, or transmitted inany orm or by any means, electronic or mechanical, including photocopying and recording, withoutthe prior consent o the copyright holder.

Manual Revision 3.0, November 2008Tobii Technology AB reserves the right to change the content o this manual without any notice.Changes due to typographical errors, innacuracies or modications in programs and/or equipmentmight be implemented at any time. Please check the Tobii web site www.tobii.com or updatedversions o this document.

All rights reserved. Tobii Technology AB

Table o Contents


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Temperature and humidity Do not place the eye tracker in places subject to extremetemperatures and humidity, such as on top or near aheating element, or in a damp room.

Do not expose the eye tracker to direct sunlight. Failureto comply may lead to equipment damage due to hightemperature exposure.

The recomemded range o temperatures and humidityare:

Storage temperature: 0C to +50C / 32F to 122FStorage humidity: Max. 80%, no condensationUsage temperature: +10C to +40C / 50F to 104FUsage humidity: Max. 90%, no condensation

Placement Only use stands specied by the supplier and make surethat they are mounted and astened according to theinstructions. Do not place the eye tracker on unstable and

uneven suraces.Avoid places subject to strong mechanical vibrations orshock. The eye tracker is not intended or mobile use.

Do not cover the ventilation openings o the eye tracker.I these openings are covered built up heat will causeailures and high risk o re hazard.

Ingress protection IP class 20. No protection against objects smaller than3.5mm.

Do not place the eye tracker in places with large amountso dust, dirt or sand, or example, near an open window oran outdoor exit.

I setting up temporarly in an outdoor location take

adequate precautions aigainst dust and dirt.

Do not use the eye tracker near water. The eye tracker isnot water resistant.

Mechanical shock I the power supply is exposed to mechanical shock, orexample, when dropped, do not use the power supplyagain. Please contact Tobii or spare parts.

This is a general recommendation applied to the eyetracker in case o any mechanical shock.

Power cord Only use the power supply sent with the eye tracker. Thewarranty is not valid i a dierent power supply is used.

It is recommended that you connect the power cable o the

eye tracker and the computer to an outlet with a protectiveearthing connection.

Use an accessible outlet and make sure that the cablesare properly placed to avoid a possible trip hazard.

Transportation Disconnect all the cables beore moving the eye tracker.

When you transport the eye tracker or repair, shipment ortraveling, use the original casing and packing materials.

Product care


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Cleaning Beore cleaning the eye tracker unplug the power cordrom the power outlet. Avoid dripping liquids into theopenings o the eye tracker.

Eye tracker setup For ull unctionality and best perormance use computersthat ulll the Minimum System Requirements and thirdparty equipment rom the System Recommendations TobiiStudio document (PDF is downloadable rom www.tobii.com).

Disposal o the eye tracker Do not dispose the eye tracker with general householdand oce waste.

Follow your local regulations or disposal o electrical andelectronic equipment.


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First time usage

Confgure the network card

Install the separate USB Ethernet adapter, congure the built in network card in your computer, yournetwork router, or your oce LAN. Read more on pages 7-8.

Install the eye tracker sotware

Install Tobii Studio, Tobii Eye Tracking Tools, or other supported eye tracking sotware. Read more onpage 7.

Connect the eye tracker to your computer

Connect the Power cable and the LAN cable. Read more on pages 7-10.

Reboot your computer

Connect the eye tracker to Tobii sotware

Start Tobii Studio or other supported sotware and make sure the eye tracker is connected. Read moreon page 9-10.

Adjust your physical setup and enter the parameters in X120 Confguration Tool

Adjust the physical setup o the eye tracker and other devices, measure all the required parametersand enter them in the X120 Conguration Tool (also applicable to the X60). Save the parameters tothe eye tracker. Read more on pages 11-18.

Create your Project and Tests in Tobii Studio

Read more in the Tobii Studio User Manual.

Calibrate and record in Tobii Studio


Usage checklist

Check connection between the eye tracker and Tobii sotware

Start Tobii Studio or other supported sotware and make sure the eye tracker is connected. Read moreon page 6.

Adjust your physical setup and add parameters in X120 Confguration Tool

Adjust the physical setup o the eye tracker and other devices, measure all the required parametersand add them in the X120 Conguration Tool. Save the parameters to the eye tracker. Read more onpages 11-18.

Create or open your Projects and Tests in Tobii Studio


Calibrate and record in Tobii Studio


Quick Start

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Setting up the connection to your computer

Power: Connect the power cable to the 12V power supply. The power supply should be connected to astandard power socket (110 or 240V AC). The eye tracker may only be used together with the originalTobii power supply.

LAN: The eye tracker communicates with the computer via a standard network cable. Connect the eyetracker to your computer using the LAN cable (LAN). There are two dierent ways you can setup thecommunication between the eye tracker and your computer:

Option A

Connect the eye tracker directly to your computer by using the USBEthernet adapter included (see installation instructions below) orby connecting the eye tracker to the built in network card in yourcomputer. The network card must be congured in Windows toobtain an IP address automatically (see instructions on next page).Windows will notiy that you have a limited connectivity to theInternet via the Eye Tracker LAN connection. This is correct as thereis no internet connectivity through that connection. Please note thati you connect the eye tracker directly to the built in network card inyour computer you wont be able to access Internet unless you usean additional network card or a wireless network.

Option B

Connect the eye tracker directly to your oce LAN or to a separatenetwork Router. The oce LAN or the Router must be conguredto automatically give the eye tracker an IP address via DHCP. Aterproperly being recognized by the oce LAN or the Router theeye tracker can be accessed by any other computer on the samenetwork running Tobii Studio, ClearView or Tobii SDK.

Installing the USB Ethernet Adapter

I you want to use setup option A explained above start by installing the USB Ethernet adapter on yourcomputer. Plug the USB cable into an available USB port on your computer. Windows will detect newhardware and prompt you or the Drivers, which can be ound on the separate CD provided. Pleaseollow the on screen instructions. For detailed instructions on driver installation, please reer to thenetwork adapter manual on the CD.

Installing eye tracker sotware

Install Tobii Studio, ClearView, Tobii SDK or other supported eye tracking sotware on the computer youintend to use. To install Tobii Studio just insert the Tobii Studio CD and ollow the on screen instructions.Please reer to the Tobii Studio Manual or Quick Start Guide or more inormation.

Using the eye tracker without Tobii Studio

I you will not be using Tobii Studio on your computer you must install the Tobii Eye Tracking Tools to beable to access and congure the eye tracker. The installation le called tobii-eye-tracking-tools-X.msi(where X is replaced with the version number o the sotware) can be ound on the CD provided. Aterinstalling the Tobii Eye Tracking Tools you can browse or the X60/120 eye tracker by going to Start >All Programs > Tobii > EyeTracker Browser. I you install Tobii Studio on your computer the EyeTrackerBrowser is installed automatically.

Connecting Tobii EyeTracker

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USB Ethernet adapter orcomputer network card

Network Router oroce LAN


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Windows will say limited connectivity or the eye tracker network connection. This is correct, ignore thewarning.

In Windows Vista

Open the Windows Control Panel

Open Network and Sharing CenterClick on the View Status link next to Local Area Connection (see image below). The Local AreaConnection Status dialog box will open.

Click on the Properties button.

Under This connection uses the ollowing items, click Internet Protocol Version 4 (TCP/IPv4), andthen click on the Properties button. See image next page.

Make sure that Obtain an IP address automatically is selected in the Properties window. Seeimage next page.

Setting up the network connection to the eye tracker in Windows

I you connect the eye tracker directly to your computer by using the USB Ethernet adapter included

or the built in network card in your computer, the network card in Windows must be congured toobtain an IP address automatically, on most computer this is the deault setting. Please ollow theinstructions below to congure the network card.

In Windows XP

Open the Windows Control Panel

Open Network Connections

Right click on the network card you will be using to communicate with the eye tracker. ChooseProperties.

Select Internet Protocol (TCP/IP) then click on the Properties button. See image below.

Make sure that Obtain an IP address automatically is selected in the Internet Protocol (TCP/IP)

Properties window. See image below.Click OK to close the windows and apply the settings.

Plug in the turned on eye tracker to the network card you just congured and reboot your computer.

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Click OK to close the windows and apply the settings.

Plug in the turned on eye tracker to the network card you just congured and reboot your computer.

Windows will say limited connectivity or the eye tracker network connection. This is correct, ignore thewarning.

Connecting to the eye tracker in Tobii Studio

The computer is connected to the Tobii X60/120 Eye Tracker in Tobii Studio using the instructionsbelow. I connecting to the Tobii X60/120 Eye Tracker with ClearView or other sotware see next page.Beore using this part o the guide, Tobii Studio has to be installed.

The rst time Tobii Studio is opened it is possible to select the Tobii X60/120 Eye Tracker and the eyetracker connection window will appear automatically, ater that it has to be opened manually by ollowingthe instructions below. I you are getting to this connection window right at start up o the sotware goto step 3 below.

Go to the Tools menu in Tobii Studio and select Settings.

Click the Eye Tracker tab where the Tobii Eye Trackers ound arelisted. See image.

Select the eye tracker to be used. The Eye tracker nameis similar to the serial number on the bottom o the Eyetracker. When the Eye Tracker is selected the Tobii Studiosotware will automatically connect to the Eye Tracker.

The connection can be tested by clicking the Test selectedeyetracker button. Make sure the connection status saysConnected.

I there are problems connecting to the eye tracker or i theconnection appears slow, rst reboot your computer and checkAppendix I i necessary or troubleshooting and alternative ways toconnect to the eye tracker.

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Connecting to the eye tracker in ClearView or Tobii SDK

The eye tracker is connected by setting the IP address in ClearView, Tobii SDK or other supported

sotware. I Tobii Studio is not installed on your computer you must rst install the Tobii Eye Tracking toolsto be able to access and congure the eye tracker. The installation le called tobii-eye-tracking-tools-X.msi(where X is replaced with the version number o the sotware) can be ound on the CD provided.

To open the Tobii EyeTracker Browser go to the windows Start > AllPrograms>Tobii>Tobii EyeTracker Browser. The Tobii EyeTrackerBrowser window is displayed where all eye trackers ound are listed.

Select the eye tracker to be used or testing. The hostname is shownin the inormation part o the window. This name is similar to theserial number on the bottom o the eye tracker.

Click on the Copy button to copy the eye tracker hostname, seepicture.

I ClearView is used see the section Setting the IP address in

ClearView below. The hostname can be used as IP-address in theSDK and other supported sotware. It is also possible to set the realIP-address.

Setting the IP address in ClearView

When using ClearView and X60/120 the IP-address has to be setmanually in ClearView; see above how to copy the address.

In ClearView select Settings > Global Settings and click theNetworktab

Check Remote computer and enter the IP address. Use the Tobii Eye

Tracker Browser to get the IP address.

Click Reconnect.

Changing the data rate (only or X120)

In the Tobii X120 Eye Tracker the data rate can be changed between60Hz and 120Hz. Follow the instructions below to change the datarate.

Open the Tobii EyeTracker Browser, ound under Start > AllPrograms > Tobii.

In the Tobii EyeTracker Browser mark the eye tracker or which therame rate is going to be changed.

Select the data rate (60Hz or 120 Hz) rom the drop down menu.

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General setup guidelines

The X60/120 should be placed below the screen (or

the surace that is to be studied) without covering thebottom o the screen or the person watching the screen.

The distance rom the persons eyes to the eyetracker should be approximate 70 cm (27.6 inches).

The eye tracker should be placed so that the gaze angle willnot exceed 35 to any point on the screen (see image tothe right).

It is very important to have the correct distance to thescreen, or the tracked object, otherwise the eye trackercannot track the entire area. I the screen or object is placedtoo close to the eye tracker there is a risk that the gazedata or the corners o the screen will not be collected (seeimage to the right). The correct distance can be calculated

by using basic trigonometry and including the gaze anglesand the screen size.

Setup examples

Confguration and Settings

Setup including a projected screen.

Setup including a scene camera and printedmaterial.

Setup including a scene camera and realobjects.

Setup including a monitor.

Setup including a television screen.

Read more about these setup examples onpages 12-15.


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Setting parameters in the X120 Confguration Tool

The user must always speciy all the positioning parameters included in the X120 Conguration tool.These are:

Eye tracker angleDistance to screenScreen angleActive Display AreaHeight dierence between screenand eye tracker

Please be as careul and preciseas possible when measuring

the required parameters in yoursetup. All parameters can haveboth positive and negative values.The values can be added both asmillimeters and inches. How to setup the dierent parameters will bedescribed on the ollowing pages.

Measuring the Active Display Area

The correct screen size must always be added in the X120 conguration tool. For computer monitors,televisions and other displays measure the size o the visible active area on the screen, where you cansee the actual image. For projected screens measure the size o the visible projection on the screen. Ina scene camera setup the active display area must be calculated based on the calibration grid size, readmore about this in the scene camera chapter on pages 12-13.

Accessing the X120 Confguration Tool

The Tobii X60 and X120 Eye Trackers can be used in many dierent

situations. For example, it can be used with any monitor or used toperorm eye tracking relative to a physical scene, a TV, or a projectionscreen. For all this to work, the user must provide some inormation tothe X60 or X120 eye tracker about the physical setup. This is doneusing the X120 Confguration tool.

To open the X120 Conguration Tool go to Windows Start > AllPrograms > Tobii > Tobii EyeTracker Browser. Or in Tobii Studiogo to Global Settings: Tools > Settings > Eye Tracker.

Click on the X60 or X120 Eye Tracker in the list and thereater onthe X120 Confg Tool button.

Note: that X120 Cong Tool should be used with both X60 andX120 Eye Tracker.

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Measuring the distance to the display or calibration grid

Measure the distance rom the back edge

o the eye tracker oot to the ront o theactive display on the monitor, projectionscreen, or TV screen, or in a scene camerasetup to the virtual screen (25% largerthan the calibration grid). I the back othe eye tracker oot is located behind theactive display, enter a negative distance(use - in ront o the value).

Always make sure that the distance to theactive display is long enough or the eyetracker to track the entire area. Pleaseread the General Setup Guidelines onpage8 or more inormation.

Measuring the horizontal angle o the eye trackerMeasure the exact angle between thehorizontal plane and the eye tracker body.The angle indicator on the actual eyetracker should only serve as an roughindicator o the actual angle. Please usean angle measuring tool or getting thecorrect angle. In many setups the angle isusually around 30 degrees.

Measuring the vertical angle o the display or calibration gridMeasure the angle between the verticalplane and the active display. In a scenecamera setup measure the angle betweenthe vertical plane and the calibration gridused. I the display is tilted orwards youshould add a negative angle (use - inront o the value). I the active display iscompletely vertical the angle value is 0.In a scene camera setup where you wantto track objects on a horizontal table theangle would be 90 degrees.

Measuring the heightdierence between the display and eye tracker

Measure the height dierence betweenthe bottom o the eye tracker oot and thebottom o the active display area. Alwaysuse the visible active display as describedon the previous page. In a scene camerasetup measure the height dierencebetween the bottom o the virtual screen(which is 25% larger than the calibrationgrid) and the eye tracker oot, see pages12-13 or more inormation. I the activedisplay is located below the eye trackeroot, or example in a projector setup,add a negative value (use - in ront o thevalue).


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Using a setup with angle oset

The eye tracker should be placedin parallel with the screen ortracked object. I this is not thecase you should check the UseRotation check box and enter theangle between the back o the eyetracker and the active display. I theeye tracker is rotated clock-wise(opposite as shown in the picture),enter a negative angle.

Saving a confguration to fle

When using dierent setups it is useul to save the dierent congurations locally on your computer.This gives you the possibility to go back and reuse the conguration or the specic setup. The le canalso be used as a local backup or your conguration in case the settings need to be adjusted later.

Congurations can be saved and loaded in the Conguration tool.

Click Save To File to save the conguration as .x120 le locally on your computer.

Click Load rom File to load a saved .x120 conguration.

Using a setup with side oset

I the Eye Tracker is not placed rightin ront o the screen with the axishorizontally aligned, an oset canbe entered in the Congurationtool (called Side oset). In this casecheck the Use Side Oset checkbox and enter the side oset romthe center o the active display tothe center o the eye tracker, entera negative value i the eye tracker islocated to the let o the center asseen rom the ront.

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Scene camera setup (tracking real objects)

Real objects, like magazines etc, can be used as stimulus in ascene camera setup where a video camera is lming the objectduring the recording. In this setup the calibration points cannotbe displayed on a screen during the calibration, thus a separatecalibration grid must be used. The grid can be drawn on apaper and include ve or nine points. The object you intend totrack should t within an area which is 25% larger than the actualcalibration grid. Always make sure that the eye tracker is ableto track the persons eyes over the entire calibration grid. Duringthe calibration procedure the person is asked to look at thecorresponding points in the grid.

All values in the X120 Confguration Tool must bemeasured and added correctly to ensure accuratedata (see previous pages on how to use the tool)additionally a calibration image (see image romStudio) rom the scene camera must be specied inTobii Studio (see how in the Tobii Studio manual).

The eye tracker is always calibrated against a two-dimensional surace, and all eye tracking data isin two dimensions. I eye tracking is to be done onthree-dimensional objects, parallax errors will beinduced. To minimize these errors always set up thescene camera overlooking the calibration area roman angle as close as possible to that o the personbeing eye tracked.

Using the confguration

To start using the congurationentered in the tool, click Save toEyetracker. The parameters willthen be sent to the eye tracker andthe eye tracker will immediatelybe properly congured. When anyparameter in the tool is changedthe button must be pressed againor the eye tracker to get the newsettings.

Setup Options


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TheActive Display Area (parameter in the X120 Conguration Tool) in a scene camera setup is always25% larger than the size o the actual calibration grid. The stimulus you intend to track should always twithin this area. The calibration grid must have the same shape as the calibration pattern used in Tobii

Studio and include either ve or nine points. The calibration points can be drawn on a paper, marked ona calibration board, or marked on objects in the scene. It is also good to include the 25% larger ActiveDisplay Area (see below) around the grid to make it easier to measure the parameters required in theX120 Conguration Tool. Make sure that the corners o the calibration grid are exactly 90 degrees andthat the center point is exactly in the middle o the grid. How to calculate the 25% larger Active DisplayArea which needs to be added in the X120 Conguration Tool is described below:

Active Display Area Height = 1.25 Calibration grid height

Active Display Area Width = 1.25 Calibration grid width

The 25% larger virtual screen (Active Display Area) is used also when speciying the other parameters inthe X120 Conguration Tool, like distance rom the eye tracker to the screen and the height dierencebetween the eye tracker and the screen. See images below.

Eye calibration o a person is done with the manual calibration routine in Tobii Studio. The personconducting the study has to manually step through the calibration points by asking the person in ronto the eye tracker to look at the rst calibration point, and when he does so, press the space bar. Thenhave him look at the second calibration point, and so on.

Example o a nine and ve point calibration grid.


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Basic monitor setup

When using the X60/120 together with a computer monitor congure Windows to use the stimulus

presentation screen as the primary screen. An additional optional secondary monitor can be used ormonitoring the eye movements during the recording by using the Live Viewer unction in Tobii Studio.For this option the graphics card in the computer must support dual output. The X60/120 should beplaced below the monitor and as close to it as possible, both vertically and horizontally. Avoid having toadjust the tilt angle o the eye tracker by using an adjustable chair or the participant.

Remember to measure and add all the required parameters in the X120 Confguration Tool. Alwaysmeasure the parameters relative to the visible active area o the monitor, where you can see the actualimage. Read more about the tool in the previous chapters.

Projection screen setup

In a projection screen setup always make sure the eye tracker is able to track the eyes over the entirescreen by using the correct screen size, correct distance to the screen, and the correct tilt angle o theeye tracker, ollow the general setup guidelines on page 8. Congure Windows to use the projected

screen as the primary screen. An additional optional secondary monitor can be used or monitoring theeye movements during the recording by using the Live Viewer unction in Tobii Studio. For this option thegraphics card in the computer must support dual output. The X60/120 eye tracker should be placedas high up as possible without covering the bottom o the screen rom the person watching the screen.Avoid having to adjust the tilt angle o the eye tracker by using a height adjustable foor stand or theeye tracker (accessory available rom Tobii).

Remember to measure and add all the required parameters in the X120 Confguration Tool. Alwaysmeasure the parameters relative to the visible active area o the projected screen, where you can seethe actual image. Read more about the tool in the previous chapters.


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TV setup

In a TV setup always make sure the eye tracker is able to track the eyes over the entire screen byusing the correct distance to the screen, and the correct tilt angle o the eye tracker, ollow the generalsetup guidelines on page 8. The X60/120 eye tracker should be placed as high up as possible withoutcovering the bottom o the TV screen rom the person watching the screen. Avoid having to adjustthe tilt angle o the eye tracker by using a height adjustable foor stand or the eye tracker (accessoryavailable rom Tobii).

A setup including a TV can be realized in two dierent ways:

Computer will display stimulus on the TV screen

You will use the computer or displaying the stimulus on the TV screen, or example by using Moviestimulus in Tobii Studio. In this setup the computer must support a video out option so that the TV

screen can be used as an additional screen connected to the computer. Congure Windows to use theTV screen as the primary screen. An additional optional secondary monitor can be used or monitoringthe eye movements during the recording by using the Live Viewer unction in Tobii Studio.

External device will display stimulus on the TV screen

The stimulus presented on the TV screen is generated by an external device such as a DVD player,set top box, gaming console etc. In this setup the computer must support a video out option so thatthe TV screen can be used as an additional screen connected to the computer during the calibrationprocedure. Additionally the computer must have a Video Capture Card or recording the video signalcoming in rom the external device. For this setup you should use the External Video stimulus inTobii Studio. An additional secondary monitor should be included or monitoring Tobii Studio during therecording. Congure Windows to use the TV screen as the primary screen. The TV must be able to takein two dierent video signals, one rom the computer (or calibration) and one rom the external deviceused. You should be able to switch between the two video signal (computer video or calibration andexternal device when recording), usually this is done by using the TV remote control.

Remember to measure and add all the required parameters in the X120 Confguration Tool. Alwaysmeasure the parameters relative to the visible active area o the TV screen, where you can see theactual image. Read more about the tool in the previous chapters.


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Appendix I:Eye Tracker Upgrade

Eye tracker sotware upgrade

Follow the instructions below to upgrade the eye tracker sotware.

Open the Tobii EyeTracker Browser, ound under Start > All Programs > Tobii.

In the Tobii EyeTracker Browser mark the eye tracker that is to be upgraded.

Click the Upgrade button.

Browse to the older where the upgrade les are saved.

Select the upgrade le with the le extension .tobiipkg and click OK.

A message stating that the upgrade is nished should appear. Click OK to close.

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Appendix II:Troubleshooting Guide

The Tobii X60 and X120 Eye Trackers use a network connection to communicate with the computer.This guide helps you to troubleshoot the most common connection issues with your Tobii Eye Tracker.

Note: This guide assumes that the tracker in question has rmware 1.1.14 or higher installed, and thatTobii Studio 1.2.38 or Tobii Eye Tracking Tools 2.2.4 is installed on the computer.

Problems with the Apple Bonjour Service

The Apple Bonjour service is used by the Tobii Eyetracker Browser and Tobii Studio to identiy the eyetrackers that are connected to the same network as the computer. The service is installed automaticallywith Tobii Studio and the Tobii Eye Tracking Tools.

The Apple Bonjour Service is not installed on the computer.

Check i the service is installed on the computer:

Open the Windows Control Panel (Classic View) > Administrative Tools > Services.

I the Apple Bonjour Service is not listed, then it will have to be installed on the computer. First check thateither Tobii Studio or the Tobii Eye Tracking Tools are installed on the computer, open the All Programsolder in your Windows Start menu:

1. I a older named Tobii containing the Tobii Eyetracker Browser is present in the All Programsolder, then at least one o the two is installed. I that is the case, download and install the latest versiono the Apple Bonjour Service rom: http://www.apple.com/support/downloads/bonjourorwindows.html

2. I the Tobii older is missing rom the All Programs older, then re-install Tobii Studio or the TobiiEyetracker Browser on the computer.

The Apple Bonjour Service is installed but not started.

Open the Windows Control Panel (Classic View) > Administrative Tools > Services.

Check in the Services list i the Apple Bonjour Services Status is set to Started. I the Status is

empty then right click on it and select Start. Restart any Tobii applications and connect again.

The Apple Bonjour Service cannot be started.

Most likely the service is blocked by an anti-virus sotware or Group Policy. Check any Group Policiesand anti-virus sotware installed (not only running) on the computer. I you do not know how to do this,please contact your IT administrator as the procedure diers between security applications.

The Apple Bonjour Service is up and running but there is still no connection.

Check that the port Apple Bonjour Service uses to scan the network is not blocked by any rewall.It uses UDP port 5353. I you need help in doing this, please contact your IT administrator as theprocedure or doing this diers between security applications.

I none o the above works.

I the computer is not connected to the Internet and Skype is running, Skype will food all networkconnections in attempts to connect to the Skype servers. This can cause problems with the eye trackerconnection. Turn o Skype.

The eye tracker takes a long time to start tracking.

I the eye tracker shows a delay o 10-30 seconds when showing the track status, starting a calibrationor starting a recording, try to upgrade the Apple Bonjour Service to its most recent version (see point 1).Using an outdated version o the Apple Bonjour Services may cause slow connection problems.

Problems with the peer-to-peer network confguration

When the eye tracker is connected directly to the test computer it uses a network connection with aDHCP server.

Check i the network card is set to obtain an IP address automatically (see page 8 o this manual).

1.

2.

3.

4.

5.

6.


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Tobii X60 & X120 technical specifcations

Data rate 60 Hz or 120 Hz

Latency 30-35 ms

Time to tracking recovery Average 100 ms

Max gaze angles 35 degrees

Freedom o Head Movement

in 60Hz mode

44 x 22 x 30 cm at 70 cm (Width x Height x Depth)

Freedom o Head Movement

in 120 Hz mode

30 x 22 x 30 cm at 70 cm (Width x Height x Depth)

Tracker feld o view in 60 Hz mode 36 x 22 x 30 cm at 70 cm (Width x Height x Depth)

Tracker feld o view in 120 Hz mode 22 x 22 x 30 cm at 70 cm (Width x Height x Depth)

Top head-motion speed 35 cm/second

Weight (excluding case) ~ 3 kg / 7 lbs

Eye tracking technique Both bright and dark pupil tracking

Eye tracking frmware Embedded

Appendix III:Specifcations


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SwedenTobii Technology ABKarlsrovgen 2DS-182 53 DanderydSweden+46 8 663 69 90 Phone+46 8 30 14 00 Fax

USATobii Technology, Inc.510 N. Washington StreetSuite 200Falls Church, VA 22046USA+1-703-738-1300 Phone

GermanyTobii Technology GmbHNiedenau 45D-60325 Frankfurt am Main

Germany+49 69 24 75 03 40 Phone+49 69 24 75 03 429 Fax

Contact Sales JapanTobii Technology, Ltd.3-4-13 Takanawa, Minato-kuTokyo 108-0074Japan+81-3-5793-3316 Phone+81-3-5793-3317 Fax

Contact Support Sweden+46 8 522 950 10 [email protected]

USA+1 703 738 1320 [email protected]

Japan+81-3-5793-3316 [email protected]

Germany+49 69 2475 034-27 [email protected]

tobii x60_x120_user_manual

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