Medication Compliance Alarm (MCA) Senior Design I Final Presentation
Jan 21, 2016
Medication Compliance
Alarm(MCA)
Senior Design I Final Presentation
Team MembersTeam 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 Technicalo 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
Name Description
Power Supply The device must use 120V AC.
USBThe 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 OverviewWebcam
Power Supply
Patient Notification
Microcontroller
Computer
Software
Remote Caregiver
Access
Practical ConstraintsEthical
• The device must not be used to spy on the patient.
Practical ConstraintsSustainability
Device must be able to handle moderate use
To prevent complaints, the device must be easy to use and not cause stress to patients.
PrototypeBreadboard
Buzzer
LEDs
PIC24
ON/OFF
USB TTL Serial Cable
TestingUSB Interface
Logic Port Analyzer Waveform Receiving Corresponding LED Char Value
TestingPatient Notification
Decibel meter used to measure intensity of Buzzer for patient notification.
00:37.0 00:38.2 00:39.1 00:40.0 00:40.9 00:41.8 00:42.7 00:43.6 00:44.5 00:45.4 00:46.3 00:47.2 00:48.1 00:49.00
10
20
30
40
50
60
70
80
90
100dB vs. Time
TestingPatient Notification
Voltage and Current characteristics of patient notification LEDs.
Voltage (V) Current (mA) LEDs 1.96 9.08
PrototypeSoftware
PrototypeSoftware
ProgressSoftware
PrototypeSoftware
PrototypeSoftware
Remote Access
PrototypeSoftware
TestingText-subsystem
Software can send an email 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
Empty Pill Detection
•Detects the empty symbol in various locations•Detection time varies with distance where camera is centered
Empty Pill Detection
Empty Pill Detection
Empty Pill Detection
Empty Pill Detection
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
Working Prototype
Future Goals
Jan. Feb. March
April May
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, 254-261. Available: http://www.jarcet.com/articles/Vol3Iss3/wertheimer.htm
• [2]http://www.xconomy.com/boston/2011/02/02/vitality-acquired-by-healthcare-investor-soon-shiong-looks-to-expand-wireless-products-for-improving-healthy-behaviors/
• [3] http://www.capsuleconnection.com/capsules
Questions?