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![Page 1: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/1.jpg)
Master’s Thesis in Computer Systems Engineering
Integration of Positioning Capabilities into an existing active RFID System
Andreas FranzWolfgang JohnPhilipp Nagele
Supervisor: Per-Arne Wiberg
Halmstad, 4th June 2004
![Page 2: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/2.jpg)
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Overview
• General apsects• Project objectives• System concept• Positioning algorithm• Simulation results• Use case
![Page 3: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/3.jpg)
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Project Objective
• Enhancing the existing RFID system with positioning functionalities
• Designing a concept for - an indoor communication protocol- a positioning algorithm on a central back-end
system• Implementing the proposed algorithm• Proving the feasibility by simulations• Analysing system characteristics
![Page 4: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/4.jpg)
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System Components
• Tag - saves received angular data (AoA)
• Reader- collects data from tags - forwards data to the backend system
• Directional Unit (DU)- provides angular information (AoA)
• Backend system (PC)- computes positioning algorithm
![Page 5: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/5.jpg)
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Communication Protocol
DU 1
DU 2
DU 3
DU 4
f
t21
Tag Memory:
DU 1 | 85° | 1 |DU 2 | 225° | 2 |
Reader
Backend system
45280
85225
![Page 6: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/6.jpg)
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Communication Protocol
DU 1
DU 2
DU 3
DU 4
f
t4321
Tag Memory:
DU 1 | 85° | 1 |DU 2 | 225° | 2 |DU 3 | 46° | 3 |
Reader
Backend system
46281
86226
![Page 7: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/7.jpg)
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Communication Protocol
DU 1
DU 2
DU 3
DU 4
f
t4321 5 6
Tag Memory:
DU 1 | 85° | 1 |DU 2 | 225° | 2 |DU 3 | 46° | 3 |DU 2 | 227° | 6 |
Reader
Backend system
47
282
87227
![Page 8: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/8.jpg)
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Communication Protocol
DU 1
DU 2
DU 3
DU 4
f
t4321 5 6
Tag Memory:
DU 1 | 85° | 1 |DU 2 | 225° | 2 |DU 3 | 46° | 3 |DU 2 | 227° | 6 |DU 3 | 48° | 7 |DU 4 | 283° | 8 |
Reader
Backend system
48
283
88 228
7 8
![Page 9: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/9.jpg)
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Positioning Algorithm
![Page 10: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/10.jpg)
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Example
![Page 11: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/11.jpg)
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Simulation of the Protocol
• Communication protocol modelled in Matlab
• Modular design- Free DU placement- Variable multipath and propagation effects- Adjustable system parameters
• Optimisation of system parameters• Power consumption• Memory considerations
![Page 12: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/12.jpg)
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Use Case
req. Accuracy
Multipath Effects
DU/ 100m2
Assembling Area
Low -Proximity
Medium 0,375
Warehouse
Medium - Palette
High 0,9375
Loading Zone
High - Goods
Low 3
![Page 13: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/13.jpg)
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Use Case
req. Accuracy
Multipath Effects
DU/ 100m2
Assembling Area
Low -Proximity
Medium 0,375
Warehouse
Medium - Palette
High 0,9375
Loading Zone
High - Goods
Low 3
![Page 14: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/14.jpg)
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Use Case
req. Accuracy
Multipath
DU/ 100m2 Mean Error
Assembling Area
Low Medium 0,375 77.0 cm
Warehouse Medium High 0,9375 55.1 cmLoading Zone High Low 3 20.6 cm
![Page 15: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/15.jpg)
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Conclusion
• Positioning achieved with minor hardware adaptations
• Implementation of a positioning algorithm- Plausibility weighting
• High scalability due to flexible DU placement
• Promising accuracy results for a future experimental setup
![Page 16: Masters Thesis in Computer Systems Engineering Integration of Positioning Capabilities into an existing active RFID System Andreas Franz Wolfgang John.](https://reader036.fdocuments.us/reader036/viewer/2022062306/5a4d1b707f8b9ab0599b51d8/html5/thumbnails/16.jpg)
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Thank you for your attention!