U-Health Monitoring System

Feb. 15, 2008

Hanyang University

Songjun Lee

Contents

• u-Healthcare

• Body Area Network

• Goals of Research

2

u-Healthcare ?

For keeping and being better health

For treatment of disease and management of patient

U-Healthcare (Ubiquitous Healthcare)Providing health service of “Precaution, diagnosis, treatment, post management”

everywhere at anytime

U-Healthcare (Ubiquitous Healthcare)Providing health service of “Precaution, diagnosis, treatment, post management”

everywhere at anytime

USN (Ubiquitous Sensor Network)Environment that collects the information by attaching sensors and

manage the real-time information through the network

USN (Ubiquitous Sensor Network)Environment that collects the information by attaching sensors and

manage the real-time information through the network

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Problem of Former Medical Service

4

Appearance of u-Health

The part that raise the quality of life

Conversion of peoples’ recognition

Former medical concept U-Health concept

Treatment of disease

Management of disease

Emphasis on disease

Emphasis on medical center

Treatment of disease

Management of disease

Emphasis on disease

Emphasis on medical center

Precaution of disease

Care of health

Emphasis on quality of life

Emphasis on living environment

Precaution of disease

Care of health

Emphasis on quality of life

Emphasis on living environment

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Advantage of u-Health

Expansion of supplier and consumer

Expansion of time and space

Care of health at all times without special diagnosis time

Recognition of health out of the hospital

Several communication or healthcare companies can offer the medical service

Healthy people can also use the medical service

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Advantage of u-Health – Contd.

Reduction of cost

Various services

Treatment, examination-> precaution, consultation, custom treatment

Reduction of medical cost by precaution of disease and minimization of movement

Daily healthcare

Change of concept about medical service Improvement of health

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Expected Effects of u-Health

• Contribution of national welfare through combination of IT, Health and Medical Industry- Change of medical concept on the basis of well-being

- New business model or medical model

- Expected annual growth is 10~20% in the medical field (Ref:IBM BCS, 2004)

User

• Easy access to a variety of medical information

• Satisfy the needs for well being

• Customized and Personalized service

Manufacturer

• New research and development

• Increase the profit by new product

Medical Institution

• Establishment of quick medical service system

• Consumer-oriented medical services

• Improvement of medical service levels

• Increase the profit

Wireless Operator

• Connected with medical EDI service

• Cornerstone for the medical market

Expected Effects of u-HealthExpected Effects of u-Health

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Previous Research of u-Health

• Transmission of health information• Unconscious measurement of biological signal

POLAR, Finland

Pulse

Samsung, Korea Samsung, Korea

Fat Pulse

ETRI, Korea

Pulse, Motion

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Contents

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• u-Healthcare

• Body Area Network

• Goals of Research

Current Research of Sensor Network– How can we raise the reliability of data?

– How can we avoid the collision of data?

– How can we put a device to sleep when there is no packet to

transmit?

– When we wake up a device? And how?

– How can we improve the delivery latency of end-to-end?

– How can we transmit when source node is far from sync

generator?

Research Topics of Sensor Network

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BAN (Body Area Network)

Conventional Concept

Establishment of networks by

attaching sensors around a

person

One central node andseveral local nodes

Ref. : IMEC

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USN vs. BAN

• What is the difference between USN and BAN?

USN

Many Nodes

Wide Environment

Low relation between data

packets

BAN

Several Nodes

High relation between data

packets

Person

Routing considering wide environment Routing considering biological signals

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General mode

Temperaturemode

ECGmode

Blood Pressuremode

Monitoring of related biological

signals

Mode Change according

to Biological Signal

Temp Acceler

PPG

Coordinator

1

ECG

Temp Acceler

Coordinator

Temp Acceler

Coordinator

Basic Structure of BAN

2 3

4

1 2 3

1 2 3

4

4

ECG

ECG

PPG

PPG

U-Healthcare using Network

Local node Central node Outside Consultant

Consult from doctor and save

in DB

Send to medical facilities

Medical advice

Bio signal

Network

ConsultantCustomer

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Contents

16

• u-Healthcare

• Body Area Network

• Goals of Research

Health Information

Health Information

Blood Sugar

Blood Pressure

TemperatureAcceleration

ECG

02. Blood Sugar02. Blood Sugar

• Blood sugar level

01. Blood Pressure01. Blood Pressure

• High blood pressure• Cholesterol• Low blood pressure• Etc.

03. Temperature03. Temperature

• Immunity • Stress• Etc.

05. ECG05. ECG

• Electro-cardiogram

• Etc.

04. Acceleration04. Acceleration

• Movement• Posture• Relation with biological signal

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BAN based on Biological Signals

Temperature

Acceleration

BASE SYSTEMBASE SYSTEM

Choice !!Choice !!

Measurement of stress through temperature, ECG

Measurement of stress through temperature, ECG

Measurement of biological signals during exercise by

using acceleration

Measurement of biological signals during exercise by

using acceleration

Measurement of blood pressure by using temperature, ECG, and motion

Measurement of blood pressure by using temperature, ECG, and motion

ECG

Blood Pressure

Blood Sugar Level

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Experiment

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Research Progress

1st step 3rd step2nd step

• Development of u-Health Monitoring System which transfers biological

signal to the portable unit using BAN

• Development of u-Health Monitoring System which transfers biological

signal to the portable unit using BAN

• Research the

relation of

biological signal

and health

• Development of

sensor module

• The platform

design for USN

• Research the

relation of

biological signal

and health

• Development of

sensor module

• The platform

design for USN

• Verification of

sensor module

• Establishment

of USN

• Verification of

networking of

sensor module

and PC

• Verification of

sensor module

• Establishment

of USN

• Verification of

networking of

sensor module

and PC

• Minimize the size

of sensor module

• Development of

the portable

monitoring unit

• Health management

using Internet

• Minimize the size

of sensor module

• Development of

the portable

monitoring unit

• Health management

using Internet

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Requirement for u-Healthcare

Sensor– Reliability– Maintainability– Wearability– Size– Weight– Power Consumption– Security

Patch Type

Patch Type

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Digital Bandage for u-Healthcare

• Digital Bandage

– Low Power– Small Size

Toumaz company in England Digital Plaster

IMEC in Belgium Wireless Sensor Platform

22

Expected Effects

U-HEALTH Monitoring System– Healthy life

– Reduction of medical expense

– Diagnosis and cure anytime, anywhere

– Reduce the probability of outbreaks through regular

checks

– Respond to emergency

– Effective health management using internet

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