QR Codes as a complementing global positioning method for location aware iPhone Apps
Post on 05-Jul-2015
665 Views
Preview:
DESCRIPTION
Transcript
>QR CODES AS A COMPLEMENTING GLOBAL POSITIONING METHODFOR LOCATION AWARE IPHONE APPS
Bachelor Thesis Colloquium
Supervisor: Prof. Dr.-Ing. Markus Dahm MSc2. Examiner: Prof. Dr. Christoph Thiel
>STRUCTURE• Overview
• Technologies
• Scenario
• Analysis
• Implementation
• Demo
• Conclusion
• Discussion
>OVERVIEW
>WHAT IS THIS ALL ABOUT ?
OVERVIEW
>WHAT IS THIS ALL ABOUT ?
OVERVIEW
>WHAT IS THIS ALL ABOUT ?
OVERVIEW
>WHAT IS THIS ALL ABOUT ?
OVERVIEW
radius ≈ 200m
>WHAT IS THIS ALL ABOUT ?
OVERVIEW
radius ≈ 200m
>WHAT IS THIS ALL ABOUT ?
OVERVIEW
radius ≈ 200m
>IN OTHERWORDS...
OVERVIEW
Source: XKCD: Cheap GPS - http://xkcd.com/407/
>MOTIVATION
OVERVIEW
It’s mobile baby
>TECHNOLOGY
OVERVIEW
Source: http://www.afrl.af.mil/images_satellites.asp Source: Apple Inc.
>WEB
OVERVIEW
>APP
OVERVIEW
>3 QUESTIONSTO BE DEALTWITH
• Is GPS enough to establish location awareness?
• Which technology can be used to assist GPS?
• How can it be implemented in a usable way?
OVERVIEW
>TECHNOLOGY
>NAVSTAR GPS
TECHNOLOGY
• developed by US DoD
• each satellite sends:
• timestamp
• the ephemeris
• the almanac
Source: http://www.afrl.af.mil/images_satellites.asp
>NAVSTAR GPS
TECHNOLOGY
latitude = ?, longitude = ?, altitude = ?, clock error = ?
4 SATELLITES
>QR CODE
TECHNOLOGY
• 2D barcodes
• store all kinds of information
• numeric
• alphanumeric
• binary
• kanji
• error correction capability
• omni-directional readable
>QR CODE
TECHNOLOGY
Source: ISO/IEC 18004
>QR CODE
TECHNOLOGY
•
Source: ISO/IEC 18004
>THE IPHONE
TECHNOLOGY
• assisted GPS
• digital compass
• cellular triangulation
• wi-fi, umts, edge
Source: Apple Inc.
>SCENARIO
>A GUIDED TOUR
SCENARIO
>WHAT IS AGUIDEDTOUR?
SCENARIO
A trip with visits to various places of interest for business,
pleasure, or instruction.http://www.thefreedictionary.com/
>SOMEDEFINITIONS...
SCENARIO
• tour creator person, that creates a guided tour
• tour creator application corresponding interface
• tour taker person, that takes the tour
• tour taker application corresponding interface
That sounds compelling...
>MY GUIDEDTOURAPPROACH
SCENARIO
• the tour creator...
• adds information about the tour
• adds stops and supplies additional information for each stop
• tour taker uses the tour taker application, that...
• senses the stops near by (via GPS, if possible)
• supplies the tour taker with information for each visited stop
>WHAT’S NEW?
OVERVIEW
>WHAT DOESIT DO?
SCENARIO
• QR Codes...
• can be used, to retrieve all kinds of information
• QR Codes...
• can be used, to store tour information
• can be used, to store location based information
• where am I?
>MY GUIDEDTOURAPPROACH
SCENARIO
• the tour creator receives QR Codes, that...
• can be hung up for tour kick-off
• can be hung up in the target area of each stop
• tour taker can use QR Codes for...
• kicking off a tour
• determine the actual location where GPS is not available
>GUIDED TOUR- SCAVENGER HUNT
SCENARIO
• Guided Tour
• all stops are visible all the time
• stops can be visited in random order
• Scavenger Hunt
• just the next stop is visible to the user
• stops have to be visited in a pre-defined order
>ANALYSIS
>QR CODES?
ANALYSIS
>TASK
ANALYSIS
• Is the QR Code a worthy technology for the given job?
• How can you implement the usersʼ interaction with the QR
Code in a usable way?
>CRITERIA
ANALYSIS
• cost-efficiency
• convenience
• flexibility
>COST-EFFICIENCY
ANALYSIS
• What do we need?
• a printer
• a piece of paper
• some ink or toner
>CONVENIENCE
ANALYSIS
• QR Codes...
• can be automatically generated
• work like barcodes => well-known concept to most mobile
users
• can be scanned easily
>FLEXIBILITY
ANALYSIS
• Since the QR Code can be used to store all kinds of
information...
• YES. Definitely.
>IMPLEMENTATION
>WEB APPLICATION
IMPLEMENTATION
>IPHONE APP
IMPLEMENTATION
>DEMO
>CONCLUSION
>YES, MAYBE,NO...?
• QR Codes is a free accessible technology
• QR Codes can be handled in a convenient way
• print and go...
• scan and go...
CONCLUSION
>DIS-ADVANTAGES
• The QR Code is a manual method.
• The user has to interact with it, in order to determine his/
her actual location
• Inside Buildings:
• The location of specific rooms canʼt be definitely set, due to
lack of ground plans
• It is not possible to distinguish between different floors
CONCLUSION
>HOWEVER The QR Code improves location
awareness!
CONCLUSION
>THING THAT YOU SHOULD TAKE HOME
• GPS is one, but not the only mean to locate a handset
• In some areas GPS simply isnʼt precise enough.
• Manual methods can assist GPS
• Itʼs fun to think of new ways to use a technology
CONCLUSION
>DISCUSSION & QUESTIONS
>LAST WORDS
>THANKS TO• Prof. Dr.-Ing. Markus Dahm MSc.
• Prof. Dr. Christoph Thiel
• John Samuel Clark
• Florian Herlings
• David Heidrich
• Jeff Brown - zBar
LAST WORDS
>INFORMATION• Slides online: http://www.slideshare.net/sebastianborggrewe
• Me online: http://www.sebastianborggrewe.de
• App is still in Review Process...
• myTour on the App Store:
http://mytour.sebastianborggrewe.de
LAST WORDS
>THANK YOU
THANK YOU
>THANK YOU• Slides online: http://www.slideshare.net/sebastianborggrewe
THANK YOU
>THANK YOU• Slides online: http://www.slideshare.net/sebastianborggrewe
• Me online: http://www.sebastianborggrewe.de
THANK YOU
>THANK YOU• Slides online: http://www.slideshare.net/sebastianborggrewe
• Me online: http://www.sebastianborggrewe.de
• myTour on the App Store:
http://mytour.sebastianborggrewe.de
THANK YOU
top related