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P11016: Intra-building Navigation Shannon Carswell Dan Paris Tim Garvin Dan Stanley.

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Presentation on theme: "P11016: Intra-building Navigation Shannon Carswell Dan Paris Tim Garvin Dan Stanley."— Presentation transcript:

1 P11016: Intra-building Navigation Shannon Carswell Dan Paris Tim Garvin Dan Stanley

2 Outline Architecture and Process Diagrams Bill Of Materials Component Details Interfaces Software Information Electrical Information Test Plan Risk Assessment Feasibility Analysis

3 Architecture Diagram RFID Reader RFID TAG Microcontroller Tag Number INTERFACE (Computer) Compass Direction I/O Power Supply Hand Held Device

4 Process Diagram Map Find Next Waypoint Get current Location Get Target Destination (UI) Translate to Location UUID Build Map There yet? Tell User We’ve Arrived (UI) Give Directions (UI) Manual Data Entry UI Input Tag UUID# Yes No

5 Bill of Materials

6 RFID Reader SkyeTek M9 Module (MH) –Frequency: 862-955MHz –Size: 70x53x9 (mm) –Weight: 12.5g –Read Range: 3.5m –Supply Voltage: 4.5-5.5V –Price: $274.00 –Tag Compatibility: EPC Gen1 & EPC Gen2

7 RFID Tags ALN-9654 “G” Inlay Size: 3.8”x0.9” ALN-9634 “2x2” Inlay Size: 1.76”x1.76” ALN-9662 “Short” Inlay Size: 2.76”x0.67” ALN-9630 “Squiglette” Inlay Size: 2.76”x0.37” ALN-9640 “Squiggle” Inlay Size: 3.73”x0.32”

8 RFID Antenna ANT-VDP-DB1-RPS Frequency: 824-960MHz VSWR: <1.5 Impedance: 50 ohms Connector: SMA Polarization: Linear Size: 4”x0.8”x0.18” Cost: Free

9 RFID Component Connection

10 Dev Board: Explorer 18 Maximum Flexibility Debugging Support Too large to strap to arm. Enables confidence in later PCB Comes with Superset representative of the PIC18 family. Microcontroller

11 PIC18F8722 Microcontroller CompassRFID Reader Keypad Tactile Response Etc. I2CI2C GPIO & PWM Microcontroller Interfaces

12 Microcontroller: PIC18F8722 “Head of the Family” 5 PWM Outputs I 2 C Aggressively Low Power Supports 5V Rail, down to 2V Microcontroller Pin-out

13 Compass Freescale – MAG3110 3 Axis Magnetometer Low Power Draw 24uA at 0.95-3.6V Popular Consumer Electronics I2C Compatible Interface Miniature Size 2x2x0.8mm Maximum Measurement Frequency of 400Hz

14 Microcontroller and Compass Interface Both MC & Compass Support the Popular I2C Interface I2C Interface 2 Wire Interface for Low Speed Consumer Electronics Commonly Used to Attach Peripherals Components to Motherboard Ideal for the Low Speed ADC on the MAG3110 Chip

15 Navigation ‘Hybrid’ Algorithm –Graph Traversal –Area Navigation Terminology –Tag –Area –Waypoint B A C

16 Navigation ‘Hybrid’ Algorithm –Graph Traversal –Area Navigation Terminology –Tag –Area –Waypoint B A C

17 Power Supply Circuitry

18 Power Supply Simulation V1: 4.986 V V2: 2.498V

19 Electrical Circuit for Compass

20 Test Plan Objective: Verify communication between all components in RFID System Reader vs. Antenna Reader vs. Tags Read Range vs. Tags Reader vs. Micro Compass vs. Micro Power supply vs. RFID system Computer vs. Micro

21 Risk Assessment Changes

22 Feasibility Analysis Dead Zone Solution

23 Future Plans MSD I –RFID Testing/ Feasibility Analysis –Read RFID Tag UID –Figure Out Wiring –PCB/Vector Board Considerations


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