1. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering Web Enabled Patron Queuing System Professor Weibo Gong Raj Wadwal Subash Unni Vinh Pham John Danaher

2. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 2 Introduction Background Development Approach Principle of Operation Design Constraints Sensor Configurations Determining Success Deliverables MDR Conclusion

3. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 3 Background Why a Web Enabled PQS? Patron find long lines wastes time no fun Customer presented with bursty patron traffic slow service time patron may bypass establishment

4. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 4 Background Broad Solution Detect Congestion locally Inform Potential Patrons via Customer website Patron adjusts schedule Life is better

5. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 5 Development Approach Multi-Phase Design Approach Phase I – Show Efficacy Implement and Install a PQS Advertise System to Public Measure Performance Refine Sensor Arrangement

6. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 6 Development Approach Multi-Phase Design Approach Phase II – Improve System Design lower cost sensors Scale micro-controller Minimize sensor number Wireless

7. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 7 Principle of Operation Detect Events Compare to Congestion Threshold Determine Congestion Level Conveys Conclusion via WIFI Patron visits web page

8. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 8 Principle of Operation

9. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 9 Design Constraints Human Nature Strict Queue Unfeasible Lumped Queue Requires Smart Controller Non-Interfering Web interface

10. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 10 Design Constraints Strict Queue - Unfeasible Conspicuous May conflict with existing lobby configuration Human Nature Use exit for entrance Sensor Interference

11. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 11 Sensor Configurations Strict Queue with Entrance Trigger with time out

12. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 12 Sensor Configurations Strict Queue with Entrance and Exit Counting

13. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 13 Sensor Configurations Lumped Queue Volume Detection Patrons and non-Patrons mixed Multiple Detection Points/ Areas Live Image Capture Low Resolution for privacy

14. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 14 Sensor Configurations Lumped Queue with Volume Estimation

15. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 15 Sensor Configurations Lumped Queue with Volume Estimation

16. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 16 Design Constraints Web Interface Seamless non-interfering Security

17. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 17 Determining Success Installed and Functioning PQS PQS function must correspond to observed data Patron Feedback Customer Feedback Reasonable Cost

18. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 18 Deliverables for MDR One (1) implementation of a PQS Ready for Test Installation Controller Sensors Server Side Software

19. U NIVERSITY OF M ASSACHUSETTS, A MHERST Department of Electrical & Computer Engineering 19 Conclusion Technology Useful Daily Human nature impacts solution Thoughtful Engineering Reduces Costs Improves System Predictability