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Electrical and Computer Engineering
Motion Analyzer for Physical Therapy
(MAPT)
SDP10 - Preliminary Design Review
Arjuna Baratham (CSE) - Sean Klaiber (EE) - James Rutter (EE) - Constantina Tyes (EE)
Professor Soules
Advisor, Senior Lecturer, ECE
October 23rd, 2009
2Electrical and Computer Engineering
Outline
I. Problem Statement
II. Design
III. Timeline/MDR Deliverables
IV. Team Roles
3Electrical and Computer Engineering
Problem Statement
Reliable Quantitative Data in Physical Therapy (PT) can only be Collected with a One-on-One Patient/Therapist Interaction
- Leads to multiple visits that are time consuming and costly
- PT may be skeptical of the reliability of data if not present
4Electrical and Computer Engineering
Solution
Create a simple, inexpensive, and portable device that can accurately measure physical therapy related motion
- Provide exercise feedback to user with simple interface
- Log exercise data for PT to analyze patient's progress
- Record reliable data to ensure PT's trust in device
- Reduce number of visits to the clinic
5Electrical and Computer Engineering
Outline
I. Problem Statement
II. Design
III. Timeline/MDR Deliverables
IV. Team Roles
6Electrical and Computer Engineering
Vision of Solution
Motion Sensors Portable DeviceMemory
CardPT Computer PT
Patient’s Home Therapy Clinic
7Electrical and Computer Engineering
Block Diagram
Motion Sensor(s)
Wireless Transmitter
WirelessReceiver
CPUVisual/Audio
Indicators
Portable Memory
GUI for PTDSP Analysis
Software
Portable Storage and Feedback Device
PT Computer
Wireless Sensor
8Electrical and Computer Engineering
Wireless Sensor
Motion Sensor(s)
Wireless Transmitter
WirelessReceiver
CPUVisual/Audio
Indicators
Portable Memory
GUI for PTDSP Analysis
Software
Portable Storage and Feedback Device
PT Computer
Wireless Sensor
9Electrical and Computer Engineering
The Wireless Sensor
• Measures Range of Motion
• Attached to the patient’s leg
• Lightweight
• Non-restrictive
ΦΦΦ Φ
10Electrical and Computer Engineering
The Wireless Sensor
Zigbee Transmitter
• 10-30 meter range
• Low power output
• Affordable
Accelerometers
• Measures acceleration in 3D
• Data used to calculate pitch, velocity, and position
11Electrical and Computer Engineering
Portable Storage and Feedback Device (PSFD)
Motion Sensor(s)
Wireless Transmitter
WirelessReceiver
CPUVisual/Audio
Indicators
Portable Memory
GUI for PTDSP Analysis
Software
Portable Storage and Feedback Device
PT Computer
Wireless Sensor
12Electrical and Computer Engineering
PSFD Functionality
• Receives physical therapy exercise data
• Compares motion data to pre-defined baseline
• Provides feedback to the user
• Electronic display of results and device status
• Stores data in a removable memory card
13Electrical and Computer Engineering
PT Computer
Motion Sensor(s)
Wireless Transmitter
WirelessReceiver
CPUVisual/Audio
Indicators
Portable Memory
GUI for PTDSP Analysis
Software
Portable Storage and Feedback Device
PT Computer
Wireless Sensor
14Electrical and Computer Engineering
PT Software
15Electrical and Computer Engineering
Design Alternatives
• More than just Kinematics Sensing
• Internet-based Data Exchange
• Computer-Based User Interface
• Proprietary PT Software (MATLAB)
16Electrical and Computer Engineering
Outline
I. Problem Statement
II. Design
III. Timeline/MDR Deliverables
IV. Team Roles
17Electrical and Computer Engineering
Timeline
18Electrical and Computer Engineering
MDR Deliverables
• Working Wireless Sensor
• Meaningful Motion Capture
• Processed by Portable Device
• Electronic Display of Results
19Electrical and Computer Engineering
Team Roles
• Wireless Sensor: Constantina & Arjuna
• PSFD Data Processing: Arjuna & James
• PSFD Interface: James
• Portable Memory: Sean & Constantina
• PT Software: Sean
20Electrical and Computer Engineering
Questions
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