In-car Entertainment System

Team Mammees

Final Prototype
19 December 2011

Overview
Technology
Users + Contexts
Scenarios + Prototype
Prototype Evolution

Overview

Travel Guru, the immersive in-car assistant, helps you find your
destination, in every sense.

Overview

Travel Guru enhances travel, helping you find awesome stuff
and to have a good time-- all without ever taking your eyes off
the road.

Explore the area Travel Guru provides rich points-of-interest search and display. Find
everything from towering landmarks to niche, hole-in-the wall grub.

Be confident You’ll always know where to go and what lies ahead. GPS navigation
and traffic alerts, as you need them.

Feel secure Even in the worst driving conditions, Trip Guru can help.
Driving assistance highlights road edges and alerts
you to potential collisions.

Technology
Background

Heads Up Display (HUD)
 HUD used to limit the heads-down interactions in the vehicle.
 Research shows decreased accidents.
 Transparent display uses lasers to create a full dashboard interface.

Audio supplement: limited commands to the system via speech
recognition, essentially the level of Siri. Audio systems are redundant.

Technology
Background

Tablet
 Provides in-depth interaction between the passenger and the
driver's HUD interface
 Provides opportunity for research, education and trip planning

Technology
Research

GM Enhanced Vision Systems
 Windshield is coated with transparent phosphors that emit light
when excited by a compact laser, turning the entire windshield
into a “monitor.”
 Vehicle’s infrared cameras can identify the edge of the road

BMW HUD
 Displays speed and navigation directions
 Responds to light, adjusting its brightness for daytime, nighttime
or hazy conditions

Technology
Research

Virtual Cable
 Presents a way-finding line visible right through the windshield

Tablets for in-car infotainment
 Smart phones: global positioning system (GPS) and media players
 Tablets: similar levels of integration as smart phones, while
sporting a larger screen size more suitable for content and
information consumption

Users + Contexts
User Profiles

Driver + Front Passenger (45 to 65 years old)

Physical May suffer from declining visual acuity, spatial and temporal
contrast sensitivity, and motion perception.

Cognitive May suffer from declining working memory, including attentional
limitations such as multiple object tracking.

Technical Literacy May have low to average skill with current technologies; are
familiar with tablets and gestures; comfortable with GPS or map
services like Google Maps.

Domain Literacy Are licensed drivers in the U.S., with familiarity with U.S. road
systems and rules.

Language Ability Are fluent in English and can read basic
directions and signs.

Users + Contexts
Context Analysis

Physical Environment
 User Conditions
 Vehicle Conditions
 Environmental Conditions

Technical Environment
 Hardware
 Software

Dynamic Shopping (Driver + Passenger)
Dynamic Shopping (Driver Only)
Points of Interest
Dining + Place Capture


Driver and Passenger want to go shopping:
 Passenger uses tablet to find shopping hotspots.

 Passenger sends new route location to HUD.

 HUD augments reality to highlight points of interest.

Dynamic Shopping (Task Analysis)
Duration Driver- Passenger-
Task Complexity Cognitive Load
(max) initiated initiated

Select “Shopping” 1 sec ✔ Low Low

Select “Clothing” 1 sec ✔ Low Low
Specify type of
clothing: price, age, 3 min ✔ Low High
gender

Choose hotspot for
20 sec/
more info, then read ✔ Low Low
info hotspot

Select area of interest
(mult. hotspots w/ 10 sec ✔ High High
lasso)

Confirm selection
(press “Go”)
1 sec ✔ Low Low

Press “HUD” button on
steering wheel to turn 1 sec ✔ Low Low
off HUD


Driver needs to utilize system without passenger
assistance:
 Most features in the main menu, for example "Dynamic
Shopping", can be utilized.
○ For safety, cog load is kept low. Information density is kept
low and features are reduced.

 Driver can scroll through options when cog load is low
from driving (stopped at a light, driving on highway).
○ Steering wheel buttons are conveniently located.
○ Driver can turn HUD off with one press on
steering wheel button.

Dynamic Shopping (Task Analysis)

Task Duration (max) Driver- Passenger- Complexity Cognitive Load
initiated initiated

Press “HUD” button 1 sec ✔ Low Low
on steering wheel

Press down/up arrows 5 sec ✔ Low Medium
to navigate to
selection, part 1

Press down/up arrows 5 sec ✔ Low Medium
to navigate to
selection, part 1

Points of Interest

Traveling couple realizes there are lighthouses in
the area:
 Passenger does initial search.
 HUD provides information to both driver and
passenger.
○ HUD uses lower part of windshield to display
important information to driver. HUD uses upper right
corner as destination summary for passenger.
 Driver can scroll through options when cog load is
low from driving (stopped at a light, driving on
highway).

Points of Interest

Points of Interest (Task Analysis)

Task Duration (max) Driver- Passenger- Complexity Cognitive Load
initiated initiated
Program “Favorites” 10 min ✔ High High
ahead of time

Select “Favorites” 1 sec ✔ Low Low
Select “Lighthouses” 1 sec ✔ Low Low
Select lighthouse of 20 sec ✔ Low Medium
interest
Select “Show map” 1 sec ✔ Low Low
Select “Send to HUD” 1 sec ✔ Low Low
Press up arrow button 1 sec ✔ Low Low
on steering wheel to
see additional traffic
conditions info, if any

Press “HUD” button 1 sec ✔ Low Low
on steering wheel to
turn off HUD


Passenger wants to research restaurants for possible
dining later in the trip:
 Determine type of food, other parameters.
 Drill down to see more information.

Passenger wants to save a restaurant for later in
Manhattan:
 Point tablet to the restaurant and "save“ location.

Dining + Place Capture (Task Analysis)

Task Duration Driver- Passenger- Complexity Cognitive
(max) initiated initiated Load
Remove 5 sec ✔ Medium Medium
tablet from
dashboard
cradle
Press “Save” 1 sec ✔ Low Low
Press 1 sec ✔ Low Low
“Contact”

Round 1
Round 1.75
Round 2
Round 3

Prototype Evolution
Round 1.75

Maureen Barlow Cory Costantino
Amanda Davis Melissa Snyder
Scott Williams Jeffrey Zundel

Appendix A: Additional Research
User + Driving Research

Transportation in an Aging Society (Conference Proceedings)

• Fear of losing their way may limit the mobility of older drivers;
directions they can see/hear can help (Caird, J., 2004)

• Vision Enhancement Systems (VES) in the forms of heads up display
also appear promising for increasing mobility (Caird, J., 2004)

• Recommended crash avoidance systems for older drivers include
heads up displays that enable drivers to see information on the
windshield, rather than requiring them to refocus (Pike, J., 2004)

Appendix A: Additional Research
User / Driver Distraction Research

Drivers' attitudes toward imperfect distraction mitigation
strategies (Donmez, B., Boyle, L.N., Lee, J.D., McGehee, D.V.)

• Drivers indicated that while they have been distracted while driving,
they did not want to give up their in-vehicle devices unless required
to by law

• When designing (safe) systems for middle-aged drivers, preserving
driver control of the in-vehicle system interactions may be necessary
if the strategy is to be accepted.

• Mitigation strategies presented in an auditory format can be very
annoying and are less likely to be accepted than visual-based
strategies. Therefore, when safe, warnings should be conveyed
visually.

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