1. Different Conceptual Designs

3. Designs for Further Consideration and Evaluation BELT VEST NECKLACE

4. Concept Evaluation Criteria Directionally Intuitive Simple User Interface One Size Fits All Recognizable Feedback to User Versatile Relatively Inconspicuous

5. PUGH Method Necklace Vest Belt/Fanny Pack

6. PUGH Method

9. Final Designs: General Design Vibrating Feedback Motors Modular Design Magnetometer

10. Functional Decomposition

11. Benefits of Final Design Inconspicuous in Nature Comfortable Placement for User Intuitive to User Reliable Directionality Consistent Feedback Client Approved (Interview with Potential Customer)

12. Combination of Components Modular design with vibration Stationary placement for directional device Heat dissipation and location Reduced potential for damage

13. Final Design: Keypad Pad Size: 2.0” x 1.5” x 0.1” Weight: 0.17oz Connector: 7 pins (Pitch 2.54mm) Maximum Circuit Rating: 35VDC, 100mA

14. Final Design: Magnetometer HMC6352  0.6” x 0.6” Simple, clean, degree resolution compass heading with full integration of 2-Axis magnetic sensors and electronics  Cost: $34.95 http://www.sparkfun.com/products/7915 HMC6343  0.8” x 0.8”  3-axis accelerometer with tilt compensation  Cost: $149.95 http://www.sparkfun.com/products/8656

15. Final Design: Magnetometer LSM303 Breakout Board  2.0cm × 2.0cm  3-axis accelerometer combined with a 3-axis magnetic sensor  Cost: $29.95 http://www.sparkfun.com/products/10703 **Micro-controller must be selected first, so it can be determined where or not the digital compass will be able to affectively interact. (MCU selected might already include a digital compass)

16. Final Design: Radio-Frequency IDentification System Includes: A scanning antenna A transceiver with a decoder to interpret the data A transponder - the RFID tag **Antenna puts out radio-frequency signals in a relatively short range. Providing the RFID tags with the energy to communicate with the reader.

17. Final Design: RFID Antenna Light weight (>1lb) and only 8.5 inches square Superior performance 8 dBi gain with broad coverage It is suitable for both indoor and outdoor wireless applications in the 900MHz ISM band, GSM, 900MHz cellular and RFID applications.

18. Final Design: RFID Reader

19. Final Design: RFID Tags