Medication Compliance Alarm (MCA) Senior Design I Final Presentation

Team Members Team Leader Electrical Engineer Website Image Processing System Integration Electrical Engineer Hardware Design Pic Programming Jarvis Kenerson Team AdvisorElectrical Engineer Calendar/ Alarm System System Integration Eric Myers Augustine Tran Dr. Randy Follett

Outline Problem Solution Constraints o Technical o Practical Testing Prototype Future Goals Questions

Problem 50% to 70% of Americans do not take their medicine as prescribed [1] Current medication reminder devices do not have a clear way to monitor that medication is being removed from the storage containers. [2]

Solution The MCA is a user-friendly device that monitors noncompliance more accurately than other existing products. The MCA: - Stores daily medication - Alerts patients during dosage times - Verifies if medication has left the device - Caregivers can visually observe medication compliance

Technical Constraints NameDescription Power SupplyThe device must use 120V AC. USB The device must use USB interface with computer. Quantity of Pill Containers The device must have 28 containers. Empty Container Detection The device has to detect when a pill container is empty. Remote Container Visibility The device must be able to visually see the pill container.

System Overview Webcam Power Supply Patient NotificationMicrocontroller Computer Software Remote Caregiver Access

Practical Constraints Ethical The device must not be used to spy on the patient.

Practical Constraints Sustainability  Device must be able to handle moderate use  To prevent complaints, the device must be easy to use and not cause stress to patients.

Prototype Breadboard Buzzer LEDs PIC24 ON/OFF USB TTL Serial Cable

Testing USB Interface  Logic Port Analyzer Waveform Receiving Corresponding LED Char Value

Testing Patient Notification  Decibel meter used to measure intensity of Buzzer for patient notification.

Testing Patient Notification  Voltage and Current characteristics of patient notification LEDs. Voltage (V)Current (mA) LEDs

Prototype Software

Progress Software

Prototype Software

Remote Access

Prototype Software

Testing Text-subsystem Software can send an that will be received as an SMS text at caregiver’s cell phone

Quantity of Pills Can hold up to 20 jelly beans (75% the size of a size 0 capsule). Approximately 15 size 0 capsules will fit into cup. [3]

Device Pill Container

Empty Pill Detection

Detects the empty symbol in various locations Detection time varies with distance where camera is centered

Empty Pill Detection

10% error with single tic-tac Limitations of prototype camera are the root cause of this error.

Sunny Day Case The alarm triggers and turns on webcam Webcam determines that pill container is full Appropriate character is sent through USB/Serial connection to microcontroller Microcontroller blinks corresponding LED and sounds buzzer Webcam continues to check pill container until empty cup is visible After webcam sees empty cup, the compliance report is updated as taken

Rainy Day Case 1 The alarm triggers and turns on webcam Webcam determines that pill container is empty at time of medication reminder Webcam sends text message to caregiver Compliance report updated as refill error

Rainy Day Case 2 The alarm triggers and turns on webcam Webcam determines that pill container is full Appropriate character is sent through USB/Serial connection to microcontroller Microcontroller blinks corresponding LED to compartment and sounds buzzer Webcam continues to check pill container until empty cup is visible Patient does not take medicine in given time limit Alarm turns off, updates compliance report as missed dosage Text message is sent to caregiver

Working Prototype

Future Goals Jan.Feb.MarchAprilMay PCB Design Software Refinement PCP Population/ Packaging Testing & Debugging

Final Product Design

References [1] A.I. Wertheimer and T.M. Santella. (2003) Medication Compliance Research: Still so Far to Go. The Journal of Applied Research. [Online] 3, Available: [2] ality-acquired-by-healthcare-investor-soon-shiong- looks-to-expand-wireless-products-for-improving- healthy-behaviors/ ality-acquired-by-healthcare-investor-soon-shiong- looks-to-expand-wireless-products-for-improving- healthy-behaviors/ [3]

Questions?