SPMS Smart Patient Monitoring System Group 13 Computer

SPMS: Smart Patient Monitoring System Group 13 Computer Engineers: Jonathon Bell, Stephen Bennett Electrical Engineers: Hassan Hariri, Dallas Marcone The University of Central Florida Department of Electrical and Computer Engineering Summer 2020

Motivation • Hospital alarms prove a noisy misery for patients: ‘I feel like I’m in jail. ’ – Washington Post • Grandmother dies in Indiana after nursing home bed rails removed – NBC • ‘Fear Of Falling’: How Hospitals Do Even More Harm By Keeping Patients Dallas Marcone

Goals and objectives Objectives: 1. 2. 3. 4. Accuracy Efficiency Scalability Low cost Goals: • • • Monitor patient activity Have a full alarm Send patient activity information Send live footage of the situation Keep records and assist nurses Hassan Hariri

Engineering Requirements Jonathon Bell

Overall Block Diagram Stephen Bennett

Power design Components Voltage required rated Current Power consumed Raspberry Pi 4 5 V 600 m. A 3 W Infra-red camera 3. 3 V 23 m. A 0. 0759 W Pi camera module 1. 5 V 250 m. A 0. 375 W MSP 432 3. 3 V 300 m. A 0. 99 W 2 Ultrasonic sensors 5 V 2 * 2 m. A 0. 02 W Piezo buzzer alarm 3. 3 V 3 m. A 0. 0099 W 0. 955 A 4. 4708 W Rated Total Estimated power consumption Hassan Hariri

Power design Power supply outputs to be designed Voltage Total current +50% current Output 1 3. 3 V . 303 A 0. 46 A Output 2 5 V . 877 A 1. 32 A Power supply outputs to be designed Hassan Hariri

Power design SWITCHING POWER SUPPLY DESIGN TYPES Type Conversion Output Voltage (Vout) Approximated Power Level (W) Buck DC/DC < Vin 0 - 1 k Boost DC/DC > Vin 0 - 5 k Buck-Boost DC/DC ≤ 0 0 - 150 Forward DC/DC Vin < Vin > 100 - 200 Flyback AC/DC DC/DC Vin < Vin > 0 - 250 Push-Pull DC/DC < Vin 100 - 1 k Half Bridge DC/DC < Vin 0 - 2 k Full Bridge DC/DC > Vin 400 - 5 k Most common types of SPMSs Hassan Hariri

Power design Overall Power Supply Hassan Hariri

Power design 120 V 5 V Design Schematic for the UCC 28634 flyback regulator Hassan Hariri

Power design Duty Cycle and Efficiency vs Output Current for UCC 28634 flyback regulator Hassan Hariri

Power design Design Schematic for the TPS 62808 Efficiency vs Output Current for TPS 62808 buck regulator Hassan Hariri

PCB schematics Voltage regulator Camera buzzer MCU 2 Raspb. Pi 4 Ultrasonic sensors MCU 1: MSP 432 Overall Project Schematic Hassan Hariri

Ultrasonic Dallas Marcone

LV Max Sonar EZ Dallas Marcone

Two Sensor System Dallas Marcone

MSP 432 Dallas Marcone

Sensor-MSP 432 Compatibility Dallas Marcone

Dallas Marcone

Dallas Marcone

Sensor Implementation Dallas Marcone

Computer Vision Solution - Infrared Stephen Bennett

Sensor Hardware Stephen Bennett

Pi Camera Module V 2 ELP USB Camera SONY SPRESENSE Connection Custom Connector USB I 2 C Megapixels 8 MP 2 MP 5 MP Fastest Frame Rate 640 x 480 p @ 90 fps 640 x 480 p @ 100 fps 720 p @ 60 fps Standard Camera 720 p @ 60 fps Highest Quality Frame Rate 1080 p @ 30 fps 1080 p @ 6 fps 1080 p @ 30 fps Weight 0. 11 oz 0. 32 oz 0. 56 oz Cost $25 $45. 99 $35 Stephen Bennett

Thermographic Camera PIM 365 Spark. Fun KIT-15948 Adafruit 3538 Connection I 2 C I 2 C, SPI I 2 C Operating Temp -40 to 85°C -10 to 80°C Operating Supply Voltage 3. 3 V/5 V 3 V/5. 5 V Weight 0. 353 oz N/A 0. 226 oz Cost $53. 50 $299. 99 $39. 95 Stephen Bennett

Single Board Computer - Raspberry Pi 4 Stephen Bennett

Raspberry Pi / PCB Communication - Serial COM Stephen Bennett

Test Bench Stephen Bennett

Canny Edge Detection Stephen Bennett

Overlaying the Thermal Image Stephen Bennett

Desktop/Pi Connection ● Multiple Options, still determining which one is best suited for the project. ● Options include: ○ Using VLC Media Player and the HTTP protocol to transfer video ○ Direct SSH connection ○ Utilizing Python Sockets within the Raspberry Pi code ● Python Sockets is the currently targeted method, since Python is to be used extensively already. ● In addition, C# Sockets and Python Sockets can be used together. Jonathon Bell

Desktop Application Features ● Monitoring ○ ○ Live video feed of each Raspberry Pi unit Status of each Pi Unit Warning labels Ability to expand/minimize groups ● Alarms/Warnings ○ Dismiss Warnings ○ Automatically maximize groups upon Alarm ● Customization ○ Create/Delete Unit Groups ○ Move units between groups ○ Add/Remove Units based on static IP ● Debugging ○ Restart Unit remotely ○ Get unit information Jonathon Bell

Use Case Diagram Jonathon Bell

Work Distribution Name Power Ultrasonic Imaging Application Dallas Marcone Jonathon Bell Hassan Hariri Stephen Bennett Jonathon Bell

Budget Product Subsystem Quantity Unit Cost Total Cost Raspberry Pi 4 (B) – 2 GB RAM SBC 1 $35. 00 32 GB Micro SD Card (Samsung) SBC 1 $7. 49 Thermal Camera (PIM 356) SBC 1 $55. 39 8 Megapixel Standard Camera SBC 1 $25. 00 Micro HDMI cable to HDMI SBC 1 $9. 99 Vilros Raspberry Pi 4 Case Development 1 $2. 99 Raspberry Pi 4 Power Supply Development 1 $8. 00 Ultrasonic Sensor PCB 1 $34. 83 MSP 432 Development Board PCB 1 $23. 95 Other PCB Costs (components, dev costs, etc. ) PCB 1 $50. 00 Total $202. 64 Jonathon Bell

Jonathon Bell