Context Modeling and Reasoning Framework for CARA Pervasive Healthcare

Bingchuan Yuan, John HerbertUniversity College Cork, Ireland

Contents

Introduction1

System Overview2

Reasoning Engine3

Case Study4

System Evaluation5

Demo Video6

2

Introduction

Healthcare Vs Aging SocietyThe healthcare system has become a national challenge with increasing growing aging population.

Population > 65 Healthcare Cost

3

Pervasive Healthcare

Traditional clinical setting Home-centered settingWireless sensor networks & Web technologies

Introduction

WSN

Internet

4

Related Work

CodeBlue – Wireless Sensors for Medical Care PlaceLab – Living Labs to Study Context-aware computing

SAPHE – Smart and Aware Pervasive Healthcare Environment

Introduction

5

System Overview

CARA for Pervasive HealthcareCARA (Context-Aware Real-time Assistant)Real-time Intelligent At-home healthcare

Rich Internet ApplicationUniversal accessReal-time user interactionAdobe Flash

6

System Overview

CARA Components

7

WSN (Wireless Sensor Network)

Data Review System

Remote Monitoring System

Healthcare Reasoning System

System Architecture

System Overview

Home Gateway

8

Reasoning Engine

Overview Flow Chart

9

Reasoning Engine

Context Modeling

- Person entity Identify the person, his profile and his movement.- Physiology entity Identify vital signs of a person.- Area entity Identify rooms and area in the environment.- Object entityIdentify objects the person can interact with.

10

Reasoning Engine

11

Fuzzy Set Examples

Reasoning Engine

12

Fuzzy Relations

Reasoning Engine

13

Fuzzy Relations

Reasoning Engine

Medical History

Activity Events

Medical Condition

Decision

Personal EntitiesAmbient Entities

Object Entities Physiology Entities

14

Rules Example

Reasoning Engine

15

Rules Setting

Reasoning Engine

16

Case Study

1

Real-time Remote Monitoring Under

Supervision

2

Real-time Remote At-home

Monitoring

3

Remote Pervasive Healthcare & Data

Review

17

Real-time Remote Monitoring Under Supervision Scenario

Case Study

Web

18

Real-time Remote At-home Monitoring Scenario

Case Study

Web

19

Case Study

Remote Pervasive Healthcare & Data Review Scenario

Sensor Data Review Video ReplayWeb

20

Snapshot

System Evaluation

21

System Evaluation

Use Case Testing

(a) Scale of situation prediction (b) confidence of situation prediction

22

System Evaluation

Performance

Different amounts of fuzzy rules with several data sets input are applied

23

Demo Video

24

Demo Video

University College Cork