Introduction – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 1

The aging population is a 21st century problem

- The percentage of people over 65 rises yearly- Costs continue to rise

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 2

The aging population is a 21st century problem Example: Warmhof

Maldegem

- 124 rooms- 200 inhabitants- Built in 2007- Cost: 20 mio

Not all inhabitants need constant monitoring and care…

Introduction – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 3

Introducing the smart home

Objective:- Cut costs- Create space

Solution:- Provide a safe environment- Keep people at home- Patient/worker ratio

Introduction – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 4

Introducing the smart home

Basic smart home components:- Sensors- Communication system- Data processing unit

Introduction – Pieter-Jan Huyghe

Introduction

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 5

Hier komt vincent

Rules

Overview – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 6

SensorsData

acquisitionReasoner Output

Data acquisition – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 7

Data acquisition:- Multiple sensors: polling based- Single sensor queries are supported- N3 format

Example:

Rules

SensorsData

acquisitionReasoner Output

Reasoner – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 8

Reasoning module:- Gathers all the data- Combines data with rules- Deduces new facts

Rules

SensorsData

acquisitionReasoner Output

Reasoner – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 9

Reasoning module is very important- Has to be fast- Has to be reliable- Low resource consumption is a plus

Choosing the right reasoner is key

Rules

SensorsData

acquisitionReasoner Output

Reasoner – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 10

Choosing the right reasoner:Jena EYE

User License Open source Open source

Last updated 2010-12 2012-5

Install Size 23.3 Mb 13.9 Mb

Type of reasoning

Forward, backward or hybrid

Backward-forward-backward

Ease of use Complex Easy

Execution speed

Moderate Fast

Accuracy High HighRules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 11

Rules:- Determine how well the reasoner works- Bind values to a fact or action- Combine facts logically- Have to be easy to maintain and read

Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 12

Basic rule example:

Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 13

Multi-sensor:

Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 14

Combine facts:

Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 15

Combine facts to detect unusual patient behavior:

Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 16

Combine facts to detect unusual patient behavior:

Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 17

Influence sensor behavior:

Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 18

Sensor malfunction reporting:- Value collections

Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 19

Sensor malfunction reporting:- Value collections- Value pairs

Ambient Light: 11%

Bed Pressure: 85%

Location: bed

Camera Light: 89% Rules

SensorsData

acquisitionReasoner Output

Rules – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 20

Sensor malfunction reporting:- Value collections- Value pairs

Ambient Light: 11%

Bed Pressure: 85%

Location: bed

Camera Light: 89%

Person is sleeping

Rules

SensorsData

acquisitionReasoner Output

Output – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 21

Key functions:-Report, detect and alert

This data can be passed on in many different ways.

Rules

SensorsData

acquisitionReasoner Output

Future work – Pieter-Jan Huyghe

Vincent Haerinck, Henry Houdmont, Pieter-Jan Huyghe- Service oriented architecture for multi-sensor surveillance in smart homes - 2011-2012 - 22

Future work:- Implement machine learning