Senior project proposal
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Transcript of Senior project proposal
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THAMMASAT UNIVERSITY
Optimization of Networked Smart Shoe for Gait Analysis using Heuristic Algorithms October 15, 2012
Mr. Nantawat Pinkam Under the supervision of Dr. Itthisek Nilkhamhang Dr. Kanokvate Tungpimolrut
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Outline • Introduction: What is Smart Shoe?
• Semester Work.
• Research Plan.
• Question and Answer.
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Introduction: What is Smart Shoe? (1)
• Thailand
• There are over 50,000 people who have trans-femoral amputee.
• Thailand has low technology in prosthetic knee.
3 Otto Bock C-leg
• Foreign
• Highly technology in prosthetic knee due to a lot of researches and commercial products.
Above knee prosthesis
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Introduction: What is Smart Shoe? (2)
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MR Damper
Gait Phase Detection
Smart Shoe
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Smart Shoe Features
• Gait Phase Detection using FSRs and IMU.
• Classification: State transition with optimized threshold using heuristic algorithms.
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Reconstruction of Smart Shoe
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
XBee wireless communication (1)
7
2.4 GHz freq. band 6.4 kbps data rate
Data sampling rate = 50Hz
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Sensor Reading (1)
8 0
200
400
600
800
1000
0.00
1.02
1.89
2.80
3.67
4.57
5.45
We
igh
t L
ev
el
Time (second)
FSR Reading
FSR_1
FSR_2
FSR_3
FSR_4
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Sensor Reading (2)
9 -500
-400
-300
-200
-100
0
100
200
300
400
500
-60
-40
-20
0
20
40
60
0.00
1.02
1.89
2.80
3.67
4.57
5.45
De
gre
e/
sec
De
gre
e
Time (second)
Angular Velocity and Foot Angle
Foot Angle
Ang_Vel
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Sensor Reading (2)
10 -500
-400
-300
-200
-100
0
100
200
300
400
-60
-40
-20
0
20
40
60
2.61
2.84
3.06
3.28
3.49
3.71
3.93
4.16
De
gre
e/
sec
De
gre
e
Time (second)
Angular Velocity and Foot Angle(1 Period)
Foot Angle
Ang_Vel
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Revised State Transition (1)
11 G1Stand Still ω = Angular velocity G2Behind coronal plane θ = Foot inclination angle G3In front of coronal plane
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Revised State Transition (2)
12 E1Stance E2Heel-off E3Swing1 E4Swing2 E5Heel-strike
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Problems Found
• Need a treadmill to collect data.
• Threshold values come from numerous observations.
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Genetic Algorithm
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• A population-based model that uses selection and recombination to generate new sample points in a search space.
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Genetic Algorithm
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Tabu Search
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Particle Swarm Optimization
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Current work • Development of selection, crossover and
mutation function to complete genetic algorithm.
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Future Plan
20 Data acquisition and comparison with visual inspection using video camera with optimized threshold from different methods.
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Research Plan
21
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Electronics and Communication Engineering Program School of Information, Computer and Communication Technology (ICT)
Sirindhorn International Institute of Technology, Thammasat University
Question and Answer
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