목차

Table of Contents
List of Figures v
List of Tables ix
List of Abbreviations xi
Acknowledgement xvi
Abstract xviii
1 Introduction 1
1.1 Overview and Motivation 1
1.2 Challenges 4
1.3 Contributions 6
1.4 Outline of the Dissertation 8
2 Background and Related Works 11
2.1 Biomedical Signals 12
2.1.1 Electrocardiography 13
2.1.2 Photoplethysmography 17
2.2 Wireless Sensor Network for Healthcare System 21
2.3 IPv6 over LoWPAN (6LoWPAN) 26
2.3.1 Stack Configuration 28
2.3.2 Adaptation Layer 30
2.3.3 Frame Format 32
2.4 Machine-to-Machine Technology 34
2.5 Chapter Summary 40
3 System Design and Implementation 42
3.1 System Overview 42
3.2 Hardware Design 43
3.2.1 ECG Sensor 44
3.2.2 PPG Sensor 50
3.2.3 M2M Node 54
3.2.4 M2M Gateway 58
3.3 Software Design 62
3.3.1 TinyOS Programming 62
3.3.2 Tunneling Process 68
3.3.3 Server Program 72
3.4 Chapter Summary 74
4 Global Network Configuration 76
4.1 Internal Network 78
4.1.1 Network Setup 78
4.1.2 Direct Communications 78
4.2 External Network 81
4.2.1 Inter-Campus 82
4.2.2 Inter-City 84
4.2.3 Inter-Country 86
4.3 Network Evaluation 87
4.4 Benefits of Global Networks 89
4.4.1 Measurement Quality Improvement 89
4.4.2 Error Reduction 90
4.4.3 Records Accuracy 90
4.4.4 Cost Reduction and Location Accuracy 91
4.5 Chapter Summary 91
5 Biomedical Signal Analysis 93
5.1 Heart Rate Variability Methodologies 93
5.1.1 Time Domain Method 96
5.1.2 Frequency Domain Method 97
5.1.3 Stress Index Method 99
5.2 Autonomic Nervous System Methodologies 100
5.2.1 Autonomic Balance Diagram Method 102
5.3 Accelerated Plethysmogram Methodologies 104
5.4 Chapter Summary 107
6 Android-based Mobile Technology 109
6.1 Google Android 111
6.1.1 Android Architecture 111
6.1.2 Android Components 113
6.1.3 Android User Interface 114
6.1.4 Android Applications 115
6.2 Eclipse IDE 117
6.2.1 Eclipse Tool 117
6.2.2 Android Emulator 119
6.3 Chapter Summary 121
7 Implementation of Mobile Healthcare System 122
7.1 System Setup 122
7.1.1 Packet Configuration 123
7.2 Android Mobile Platform 124
7.3 Android-based Personal Monitoring Service 126
7.3.1 ECG Signal Monitoring 127
7.3.2 PPG Signal Monitoring 128
7.3.3 Server Database 130
7.4 Chapter Summary 133
8 Results and Evaluation 134
8.1 Practical Experiments and Setup 134
8.2 Data Acquisition 135
8.2.1 Health Feature Extraction 136
8.3 Analysis Performance of Health Feature 138
8.3.1 HR Distribution 138
8.3.2 SDNN, RMSSD and pNN50 140
8.3.3 Stress Index 142
8.3.4 Ratio of LF/HF 143
8.3.5 Autonomic Balance Diagram 147
8.3.6 APG Waveform 149
8.4 Chapter Summary 153
9 Conclusions 155
References 157
List of Publications 174