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Bathroom Entry and Soap Dispenser Detection

Bathroom Entry and Soap Dispenser Detection. Paul Chang, Joe Contreras, Alejandro Gari Georgia Tech ECE4007/L03 December 10, 2009. Did you know?. In industrialized nations, up to 30 percent suffer from food contamination

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Bathroom Entry and Soap Dispenser Detection

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  1. Bathroom Entry and Soap Dispenser Detection Paul Chang, Joe Contreras, Alejandro Gari Georgia Tech ECE4007/L03 December 10, 2009

  2. Did you know? • In industrialized nations, up to • 30 percent suffer from food contamination • In the US, 76 million people suffer and 5,000 die annually from food contamination • Within 12 hours, one bacterium that splits itself every half hour can create 17 million bacteria

  3. Key Points • System to track employee hand-hygiene • Reduce the chances of food contamination • The system is being designed for Arby’s • The cost of the system is $1,730

  4. Design Objectives • Detect entry and exit of employee • Detect use of soap dispenser • Logging of RFID tag data • Real-time alarm • Targeted for food service industry • Detects entry of employee • Detects when soap is dispensed • Logs of soap or non-soap usage • Targeted for food service industry Proposed Objectives Final Design Objectives

  5. Design Approach • Have employee wear ankle bracelet, with RFID tag • Place antenna near entrance at floor level • Use Motion sensor to detect entry • Use IR sensor to detect soap dispensing • Create data logs through C program

  6. Circuit Diagram

  7. SoapDispenserwithBuilt –In Sensor Sink Computer SensorLinkBox Dryer MotionSensor FEIGRFID Reader FEIGPadAntenna Door Restroom Setup

  8. 13.56 MHz RF FEIG Pad Antenna Coaxial FEIG RFID Reader RFID Tag USB 802.11g USB eBox Computer Sensor Link Box Network 802.11g DC: 0 - 6V Manager's Computer Soap Dispenser Sensor DC: 0 - 5 V Motion Sensor System Block Diagram

  9. Wireless Motion Sensor eBox Manager's Computer Soap Dispenser FEIG RFID Reader Sensor Link Box FEIG Pad Antenna Brace Demo Plan

  10. System isWaiting System Reset Entry Detected with Tag False Alarm Motion Sensor Activated? Log Updated Log Updated NO(TIME OUT) YES Employee is in Restroom YES Soap Dispensed? Restroom Used NO(TIME OUT) Algorithm

  11. Algorithm Issues • Restarting the Program to wait for next employee. • Employee is still in the restroom when a timeout occurs

  12. Acceptance Testing • Component Communications RFID tag, IR sensor, and Motion sensor communication with eBox will be verified • Program Scenarios were tested and achieved a desired success rate of 80 percent • Simulation A simulation of the entire system was performed and is functioning

  13. Recommended Future Work • Fix computer code so that program can restart properly after employee exits bathroom. • Expand design for multi-personnel restrooms.

  14. Budget and Cost Analysis

  15. Wireless Motion Sensor eBox Manager's Computer Soap Dispenser FEIG RFID Reader Sensor Link Box FEIG Pad Antenna Brace

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