Tobii Glasses 2 Eye Tracker User’s Manual Tobii Glasses Head Unit Tobii Glasses Recording Unit Tobii Glasses Controller Software
User’s manual Tobii Glasses 2 Eye Tracker Version 1.0.2 12/2014 All rights reserved. Copyright © Tobii Technology AB The information contained in this document is proprietary to Tobii Technology. Any reproduction in part or whole without prior written authorization by Tobii Technology is prohibited. Products that are referred to in this document may be either trademarks and/or registered trademarks of the respective owners. The publisher and the author make no claim to these trademarks.
Table of Contents 1 Safety and Compliance .................................................................................................................. 1 1.1 1.2 1.3 2 Introduction.................................................................................................................................... 7 2.1 2.2 3 Intended use..........................................................................................................................7 Usage overview.........................
5.2 6 Workflow Quick Guide................................................................................................................. 16 6.1 6.2 6.3 6.4 7 5.1.1 Tobii Glasses 2 Packages .....................................................................................10 5.1.2 System components ..............................................................................................11 5.1.3 Tobii Glasses 2 Head Unit...........................................................................
.8 7.9 7.10 7.11 7.12 7.13 8 9 Replaying a recording ...........................................................................................................30 Exporting a gaze replay video .................................................................................................30 Deleting a recording .............................................................................................................30 Backing up recorded data .........................................................
1 1.1 1.1.1 Safety and Compliance Safety and Usage Usage Warning The Tobii Glasses 2 system is composed of several components as described in the User’s Manual and should be used according to manufacturer instructions. Connecting, or by other means using any other component than advised in the User’s Manual may damage or injure a person, their property or recorded data, and is done entirely at the user’s own risk.
1.1.6 Mechanical Shock Warning The Tobii Glasses 2 system is a delicate measuring instrument used for research purposes and should be treated with care at all times. To avoid breaking or damaging the internal electronic circuits, do not drop, knock, or shake the device. Eye tracking quality or accuracy can be seriously affected if the Tobii Glasses 2 Head Unit or Recording Unit has been dropped.
1.1.12 Battery Warning The Tobii Glasses 2 system includes rechargeable Lithium-ion batteries. Lithium-ion batteries can explode or cause a fire if they are used or charged incorrectly or if they are defective. Do not short circuit the battery poles. Do not expose the battery to water or humidity. Do not expose batteries to heat, direct sunlight, solder, or fire. Immediately disconnect the batteries if, during operation, they emit an unusual smell, feel hot, change shape/dimensions, or behave abnormally.
1.2 Compliance Information All Tobii Glasses 2 are CE-marked, indicating compliance with the essential health and safety requirements set out in European Directives. 1.2.1 Federal Communication Commission Interference Statement 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.
• • • • • • • • 1.3 1.3.1 WEEE Directive 2002/96/EC Reach Directive 2006/121/EC China RoHS Directive CFR 47 (FCC) part 15, Class B Canadian ICES-003 Japan TCM mark (WLAN) [Ref 4] Japan VCCI mark IEC/EN/UL60950-1:2005 (Electrical safety for global/EU/US) Other limitations and considerations Intended use Tobii Glasses 2 is intended to be used in research activities about human behavior including eye movements, involving adult participants in a dry and dust free indoor environment.
1.3.7 Droopy eyelids Droopy eyelids or otherwise obstructive eyelids can block the view of the participant’s pupils. In rare cases, such eyelids may completely block the view of the participant’s pupils, making eye tracking impossible. 1.3.8 Eye glasses and contact lenses Tobii Glasses 2 is not designed to work in conjunction with standard eye glasses. Participants who wear eye glasses should be screened out, or asked to remove their own glasses before wearing the Head Unit.
2 Introduction Tobii Glasses 2 is designed to enable easy, precise and efficient collection of eye tracking data in a wide variety of research scenarios. The discreet, ultra-lightweight design ensures natural behavior and research validity in both qualitative and quantitative real-world research. Accurate data and robust eye tracking capabilities can be relied on in uncontrolled situations and realworld environments. 2.
3 Installing and Updating Tobii Glasses Controller Software Tobii Glasses Controller Software is designed to be installed on a Window 8/8.1 Pro tablet but can also be installed on any Windows 8/8.1 or 7 computer. Please refer to the System Recommendations document for the most current computer requirements for Tobii Glasses Controller Software. 3.
4 Updating the Tobii Glasses Recording Unit firmware From time to time Tobii will release new updates of the Tobii Glasses Recording Unit firmware that will improve performance and/or introduce new functionality. Updating the Recording Unit firmware is done through Tobii Glasses Controller Software. If the computer is online Tobii Controller Software will indicate with an alert on the dashboard if there is a new firmware available.
5 Getting to know Tobii Glasses 2 5.1 System overview 5.1.1 Tobii Glasses 2 Packages Tobii Glasses 2 is sold in four different packages. An overview of the package contents is presented in the table below.
One day onsite installation and startup training2 ● Tobii Care2 ● 5.1.2 System components The Tobii Glasses 2 system is made up of several components. Each component is briefly described below. The system includes: 1. A wearable eye tracker (glasses), referred to as the Head Unit. 2. A Recording Unit, connected to the Head Unit via an HDMI cable. The Recording Unit holds the battery and stores the recorded data on an SD memory card.
3. A Windows 7 or Windows 8/8.1 Pro tablet3 or computer running Tobii Controller Software. Tobii Glasses Controller allows for managing participants, controlling the eye tracker and viewing both real-time and recorded eye tracking data. Tobii Glasses Controller connects to the eye tracker through an Ethernet connection (either wireless or wired). No eye tracking data is stored on the tablet computer. 4. Tobii Glasses Analysis Software4 (optional) installed on a Windows computer.
1. High-definition scene camera – Captures a high-definition video of what is in front of the participant. 2. Microphone – Picks up sounds from the participant and its surroundings. 3. Eye tracking sensors – Records eye orientation e.g. the direction of the eye gaze. 4. IR illuminators – Illuminates the eyes to support the eye tracking sensors. 5. Micro HDMI connector – Connects to Tobii Glasses Recording Unit via the supplied HDMI cable. 6.
1. Power button & power indicator LED Touch button that turns the Recording Unit on and off. LED indicates power state and remaining battery power. 2. 3.5 mm connector for data synchronization– Currently not in use. 3. LAN port – Connects to a Windows tablet or computer running Tobii Controller Software, via the supplied Ethernet cable. The Recording Unit can also be connected to the tablet or computer via WLAN5. 4.
5.2.2 Studies (Create or switch study) This is where you manage your active studies. From here you can create, delete and switch between studies. 5.2.3 Dashboard The Dashboard is where you start, pause and stop recordings, and where you get an overview of what is going on right now. The Dashboard consists of Glasses Control Panels, one for each Recording Unit currently or previously connected to Glasses Controller Software.
6 Workflow Quick Guide This section is a quick guide on how to use Tobii Glasses 2. For in depth descriptions on basic operations and handling procedures, refer to the following sections. 6.1 Preparations before a data collection day We recommend making a test recording before going into the field for data collection. To make a test recording follow the steps in section 7.5 Recording with Tobii Glasses 2, page 27. 6.1.1 Charging batteries and preparing memory cards 1.
8. 6.2.3 1. 6.2.4 Remove the Glasses from the participant. Checking the recording Check recorded data by replaying the video from the Recording List. See section 7.8 Replaying a recording, page 30. Turning the Glasses off 1. Check battery and memory levels on the Dashboard. 2. On the Recording Unit, press and hold the power button until the LEDs stop flashing. Release the button and the Recording Unit will turn off within the next 10 seconds. 6.3 After data collection 1.
7 Basic Operations with Tobii Glasses 2 This section covers the basic operating procedures for all components in the Tobii Glasses 2 eye tracking system, including the Head Unit, Recording Unit and Tobii Glasses Controller Software. 7.1 Setting up Tobii Glasses 2 hardware This section covers how to assemble and prepare the hardware. To get Tobii Glasses 2 ready for use, follow the instructions in the sections below. 7.1.
The Tobii Glasses 2 system includes rechargeable Lithium-ion batteries. Lithium-ion batteries can explode or cause a fire if they are used or charged incorrectly or if they are defective. Do not short-circuit battery poles. Do not expose the battery to water or humidity. Do not expose batteries to heat, direct sunlight, solder or fire. Immediately disconnect the batteries if, during operation, they emit an unusual smell, feel hot, change shape/dimensions, or behave abnormally.
7.1.2 Inserting/removing the battery – Glasses Recording Unit Only use the supplied rechargeable Li–ion batteries (type 18650, 4.2 Volts) in the Recording Unit. To insert a battery into the Tobii Glasses Recording Unit (See illustration to the right): 1. Turn off the Recording Unit. 2. Push and turn the bottom of the Recording Unit and then lift the battery compartment lid. 3. Remove any old battery and insert a new one.
7.1.4 Connecting the HDMI cable 1. On the Head Unit, gently connect the HDMI cable to the micro HDMI connector and then attach the cable to the Cable Guide. 2. Connect the other end of the HDMI cable to the Recording Unit HDMI connector. 7.1.5 Changing nose pads (remove and mount new): 1. To remove the existing nose pad: Gently squeeze the tips of the nose pad towards each other and then gently pull the nose pad straight away from its mounting. 2.
7.1.6 Changing the lenses on the Head Unit Glasses 2 comes with two different protective lenses, one clear and one tinted. The tinted lens is intended to be used in bright or sunny environments, while the clear lens is intended for general use. Glasses 2 will function even though no lens is attached to the Head Unit. 1. Locate the small hook that keeps the lens in place, located between the scene camera and the nose pad at the front of the Tobii Glasses Head Unit. 2.
known beforehand, entering this information into the Tobii Glasses Controller Software in advance of data collection may simplify the participant set up process in the field. Participants cannot be deleted or removed once they have been created in Tobii Glasses Controller Software. To add a new participant to your study: 1. Tap Participants on the Menu bar. 2. Tap New Participant in the lower right hand corner. A Create new participant dialog box opens. 3.
4. If the tablet/computer is already connected to another network (WLAN/internet/LAN connection etc), make sure to disconnect from this network first. You may otherwise experience that the tablet is not reconnecting automatically to the Recording Unit after losing connection to it. • To disconnect from your current network: tap Current connection and then tap Disconnect 5. Tap the WLAN network that has the same name as the serial number of your Recording Unit (TG02X-XXX...).
2. Connect the Ethernet cable to the LAN port on the tablet/computer and to the Recording Unit LAN port. The Glasses Control panel on Tobii Glasses Controller Software Dashboard will display “Ready” whenever there is a connection between the software and the Recording Unit. The connection will be lost if the Ethernet cable is unplugged or if the tablet computer or Recording Unit is turned off.
7.4 Fitting the Tobii Glasses 2 Eye Tracker onto a participant for recording To fit the Tobii Glasses 2 Eye Tracker onto a test participant: 1. Make sure all optical parts on the Head Unit such as eye tracking sensors, and IR illuminators are clean and not scratched or damaged in any way. 2. Make sure that participant characteristics match the requirements of the Glasses 2 Eye Tracker. 3. Make sure that Tobii Glasses Controller Software is running on your tablet/computer. 4.
7.5 Recording with Tobii Glasses 2 Tobii Glasses 2 recordings are initiated from the Dashboard in Tobii Glasses Controller Software on your tablet/computer. Recordings are associated with the study that was open when initiating the recording. Make sure the Recording Unit is correctly connected over WLAN or Ethernet to your tablet/computer with Tobii Glasses Controller Software before attempting to start/ stop/pause a recording. 7.5.
7.5.2 Pausing a recording in progress Ongoing recordings can only be paused when the Recording Unit is connected to the tablet/computer with Tobii Glasses Controller Software. Pausing a recording can be done from both the Dashboard and Live Viewer. To pause a recording from the Dashboard: 1. Make sure the Glasses 2 are connected to Tobii Glasses Controller Software. 2. Tap Pause on the Glasses Control Panel for the relevant Recording Unit.
while the Participants List lets you find all the recordings associated with a specific participant. Once a recording has been located, it can be replayed or deleted; see following sections for instructions. 7.7.1 Using the Recordings List to locate recordings The Recordings List shows details about completed recordings in the currently open study. To open the Recordings List: 1. Tap Recordings on the menu bar.
7.8 Replaying a recording A replay of a recording can either be initiated from the Recording List, or though the Participants List when accessing the recording list for a participant. It is also possible to export the gaze replay video from the Recordings list. Video and eye tracking data is stored only on the SD memory card inside the Recording Unit, not on the Tobii Glasses Controller Software tablet/computer.
2. Open the SD memory card storage device your computer’s file manager. 3. Copy all files from the SD memory card to a backup folder or drive on the computer. 7.12 Other operations and information 7.12.1 Status LEDs indication scheme for the Recording Unit There are three LED indicators on the Recording Unit: 1. Power Indicator LED. 2. Connection Status LED. 3. SD card Activity LED. Rules of thumb: • • To start a Recording: All three LEDs should be green.
7.12.2 Tobii Glasses 2 data structure Data from a Tobii Glasses 2 recording is contained in “studies”. Each study contains general study details, participant data and recording data. Since both Tobii Glasses Controller Software and the Recording Unit can generate and store data in a given study, data is automatically synchronized between the two units whenever there is a connection between them.
2. Tap Rename Glasses in Glasses Control Panel Properties . 3. Type a new name and tap Save Changes. 7.12.5 Memory cards SD memory cards used in the Tobii Glasses 2 Recording Unit must be formatted as FAT32. SDHC cards are usually pre-formatted as FAT32 and will work out of the box while SDXC cards must be formatted as FAT32 before they can be used with the Recording Unit. SD memory cards provided by Tobii can be used directly without any formatting.
8 Advanced Usage with Multiple Units In most research scenarios one tablet/computer connects to one Tobii Glasses 2 Recording Unit. There are scenarios where one would like to connect one tablet to multiple Recording Units, or multiple tablets to one or more Recording Units. The Recording Unit works as a network access point and multiple tablets running Tobii Glasses Controller Software can connect to it simultaneously.
9 9.1 Accessories Tobii Glasses 2 Carry Case Tobii Glasses 2 comes with a dedicated Carry Case that will accommodate the most important components needed for data collection with Tobii Glasses 2, including the Head Unit, Recording Unit, SD memory cards, batteries, etc. See the illustration (below right)and the table below for information about how to fit the equipment in the Carry Case. The Carry Case can be used as a portable tablet rest; please see illustration below left. a. Head Unit g.
1. Battery charger for Li-ion batteries 5. Power plugs for USB charger (EU, US, UK + AUS) 2. USB Ethernet Adapter 6. Ethernet cable (3 meters) 3. Power cables for battery charger (EU, US, UK + AUS) 7. Calibration Cards 4. USB charger for Recording Unit 8. Calibration Stickers 9.3 Tablet computer included in the Tobii Glasses 2 Premium Package The Tobii Glasses 2 Premium Package includes a Dell Windows 8.1 Pro Tablet8. 9.3.
9.3.2 Support for your Dell Tablet The Dell Tablet included in the Tobii Glasses 2 Premium Package includes 3 years of Dell Support. To get support for your tablet or Windows 8.1 please use the Dell Service Tag number located on the shipping box when communicating with Dell. Visit the Dell website http://www.dell.com for contact details and information.
Appendix A A1 Technical Specifications Eye Tracking Eye tracking technique Corneal reflection, dark pupil Binocular eye tracking Yes Sampling rate 30 Hz Calibration procedure 1 point Parallax compensation tool Automatic Slippage compensation Yes, 3D eye tracking model Pupil measurement Yes, absolute measure A2 Glasses Head Unit Material Grilamid plastic, stainless steel, aluminum Protective lens Plastic, in 2 versions: clear and tinted Interchangeable lenses Yes Nose pad Grilamid p
A4 Compliance Ingress protection IP class 20 CE - European Union Yes FCC - USA Yes CCC - China Yes VCCI - Japan Yes Eye Safety (EN 62471:2008) Yes Underwriters Lab US (UL 60950) Yes A5 Compatible Software Recording and live viewing Tobii Glasses Controller Software Data analysis and export Tobii Glasses Analysis Software A6 • • • • • A7 Glasses Controller Software — Feature overview Manage participants Manage recordings Live viewing of recordings Instant replay of recordings Simple c
Appendix B Calibration target Below are two scale illustrations of the Tobii Glasses 2 Calibration Target; one with accurate dimensions illustrated (below left) and one without (below right). The right target can be printed, cut out and used for calibration with Tobii Glasses 2. Please verify that the dimensions of the printout are accurate, as stated in the below left illustration. If you wish to use a printed Calibration target, you must print and cut out the right hand Calibration target.
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