aristotle university of thessaloniki faculty of engineering department of electrical and computer...

Aristotle University of ThessalonikiFaculty of EngineeringDepartment of Electrical and Computer Engineering

Team members:Team members: Marios MitrosilisMarios Mitrosilis

Emanouil Emanouil PapastergisPapastergis

ArgyriosArgyrios Tzakas

Alexia TzalavraAlexia TzalavraTeam tutor:Team tutor: Leontios HadjileontiadisLeontios Hadjileontiadis

A mobile environmental monitoring system

designed to help allergic people


The AllergyON! Team

Argyris Manolis

AlexiaMarios


Manolis Papastergis

Role in the project:

•Application Developer

•Fuzzy Risk Analysis Algorithm

22 years old

Student


Argyris Tzakas


•Web Services implementation

•Hardware design & programming

23 years old

Novice Electrical Engineer


Alexia Tzalavra


•Fuzzy Logic Risk Analysis implementation

•Application Developer

22 years old

Student


Marios Mitrosilis


•User Interface

•Hardware design & programming

23 years old

Novice Electrical Engineer


“There is an epidemic of allergic disease in Europe and

elsewhere in the world.”Peter Burney, Vice President of research at

the Global Allergy and Asthma European Network (GALEN)


Target Group:

20% of the world population suffers from allergic diseases

Asthma is caused by allergies in 50% of

adults and at least 80% of affected children.

150 million people worldwide suffer from asthma

1 out of 3 European citizens suffer from some allergy related condition


Non intrusive, transparent system, easy to use and understand.

Allergens move constantly because of wind currents.

People have different sensitivities to the various allergens.

There are people with allergies in food and medicine.

Design Considerations


Measures the concentration of allergens in the air.

Interprets the measurements according to the user’s sensitivity.

Computes the risk factor for an allergic reaction.

Warns the user of rising risk to his health.

Offers assistance to people with allergies in food or medicine.


How this technology helps us Live Healthier Lives

Allergic symptoms include:

So preventing allergic crisis helps people live healthier lives

• Absentmindedness• Anaphylaxis• Asthma

• Burning eyes• Constipation• Coughing

• Dark circles under or around the eyes

• Dermititis• Depression

• Diarrhea• Difficulty swallowing• Distraction, difficulty

with concentration

• Dizziness• Eczema• Embarrassment

• Fatigue• Flushing• Headaches

• Heart palpitations• Hives• Impaired sense of

smell

• Irritability/behavioral problems

• Itchy nose and/or throat• Itchy skin

• Joint aches• Muscle pains• Nasal congestion

• Nasal polyps• Nausea• Postnasal drainage

(postnasal drip)

• Rapid pulse• Rhinorrhea (runny nose)• Ringing, popping or

fullness in the ears

• Shortness of breath• Skin Rashes• Sleep difficulties

• Tingling nose• Tiredness• Vertigo

• Sneezing• Swelling (angioedema)• Throat hoarseness

• Vomiting• Watery, itchy, crusty or

red eyes• Wheezing

• Absentmindedness• Anaphylaxis• Asthma

• Burning eyes• Constipation• Coughing

• Dark circles under or around the eyes

• Dermititis• Depression

• Diarrhea• Difficulty swallowing• Distraction, difficulty

with concentration

• Dizziness• Eczema• Embarrassment

• Fatigue• Flushing• Headaches

• Heart palpitations• Hives• Impaired sense of

smell

• Irritability/behavioral problems

• Itchy nose and/or throat• Itchy skin

• Joint aches• Muscle pains• Nasal congestion

• Nasal polyps• Nausea• Postnasal drainage

(postnasal drip)

• Rapid pulse• Rhinorrhea (runny nose)• Ringing, popping or

fullness in the ears

• Shortness of breath• Skin Rashes• Sleep difficulties

• Tingling nose• Tiredness• Vertigo

• Sneezing• Swelling (angioedema)• Throat hoarseness

• Vomiting• Watery, itchy, crusty or

red eyes• Wheezing


Weather ForecastPollen Forecast

Web Services

MS MappointWeb Services

Web Services

GPSFood

Warning

Air Warning

Web Services

Allergy ON Server Application

Food Ingredients DatabaseUser Database

Web Services

Web Services

User Measurements

Food Allergies

Food name

System ArchitectureAllergy ON Pocket PC add-on

Data Acquisition

ADuC834

Filtering and Amplification

RS232transmission

E-noseArray of allergen

sensitive material

Allergy ON Pocket PC application

User’s sensitivity settings

Pattern Recognition

Fuzzy LogicRisk Analysis


System Components

Pocket PC

add-on

Pocket and

Desktop PC

Application

Server

Application


Custom made device used to acquire and transmit the essential data for allergen identification and concentration measurement

Measurements are performed by an electronic-nose sensor

The resulting signals are digitized, filtered and amplified by an ADuC834 microprocessor

Data are sent to the AllergyON! Pocket PC application via RS232 interface.

Pocket PC add-on


E-noseArray of allergen

sensitive material

Data Acquisition

ADuC834

Filtering and Amplification

RS232transmission

Pocket PC

Application

Prototype suggestion


System Components

Pocket PC

add-on

Pocket and

Desktop PC

Application

Server

Application


Main control unit, processing and recognition module, user interface

Performs :

Signal Processing

Allergen identification and concentration measurement

Risk assessment

Graphical representation of measurement data through maps and graphs

Use of Web Services to obtain weather and pollen forecast data, food ingredient, restaurant menus and drug substances information

Pocket PC Application


11 12 1

21 22 2

1 2

m

m

ij

n n nm

x x x

x x xR

x

x x x

Sensor arrayraw data

0

10

20

30

40

50

TimeE

lect

rical

Pro

pert

y

Preprocessing

Fea

ture

2

Feature 1

Feature extraction

Fea

ture

2

Feature 1

Class 1Class 2

Class 3

Classification

Signal filtering

Data normalization

Change in electrical resistance, sensor by sensor

The vector of values represents the allergen’s fingerprint

Pattern recognition algorithms

Allergen Classification and concentration estimation

Pattern Recognition algorithm


Risk Assessment algorithm

Fea

ture

2

Feature 1

Class 1Class 2

Class 3

Pattern Recognition

Results

User’s Sensitivities

Fuzzy system Risk Factor


Stand-alone operation of the pocket PC add on for room monitoring

Desktop Application


System Components

Pocket PC

add-on

Pocket and

Desktop PC

Application

Server

Application


MS SQL Server 2005 MS SQL Server 2005 DatabaseDatabaseUser informationUser information

Food ingredients databaseFood ingredients database

Drug ingredients databaseDrug ingredients database

IIS 5.0 Web ServerIIS 5.0 Web Server Web Services for the exchange of the data Web Services for the exchange of the data between client (Pocket PC) - serverbetween client (Pocket PC) - server Sites for registration, system browsing, helpSites for registration, system browsing, help

Server Application


Help food allergic people by:Obtaining food ingredients data, based on specified food nameProviding international cuisine info, helping users who travel Allowing for restaurant menu download

Help drug allergic people by displaying substances contained in any specified drug

Access to weather and pollen forecast Access to weather and pollen forecast datadata

Web Services


System Demonstration

Scenario #1: A walk in the open…

Data acquisition simulation

Risk level change and user warning

Data graphs and maps

Scenario #2: A romantic dinner…

Aiding food allergic people through Web Service use

Advice to drug allergic people


Why is the system innovative?

The only mobile system that combines airborne-allergens and allergies in food and medicine

Personalized, real time risk assessment (in contrast with generic, once-a-day pollen count information)

The only application of e-nose sensors on allergen detection


Why is the system effective?

Easy-to-use

Not a source of annoyance

On-the-spot advice

Compact-size, low-weight sensor module


Why is the system effective? (larger scale

effects) Enhances social life of allergic people

By preventing allergic seizures:

Minimal hospitalization

Reduced medication

Substantial savings in health resources

16.7 million office visits to health care providers in the USA

11.3 billion $ annual cost for asthma treatment in the USA


How does the system adapt to How does the system adapt to the user?the user?

Risk assessment according to user’s sensitivities

Food and drug advice according to the user’s allergen specifications

The system is aware of the user’s location and provides location specific information


Technologies/Resources

Servers:IIS 5SQL Server 2005

Development Tools:Visual Studio .NET 2005 Professional EditionKEIL Embedded Development Tools

Add-on Hardware:Analog Devices ADuC834 MicrocontrollerNanomechanical active sensors

Other Technologies:.NET Framework 2.0C#ADO.NETASP.NETMappoint Web ServicesXML Web Services


Integration/testing of our nanosensor

Cross-case testing & evaluation of feedback from the target group

Fine tuning of Pattern Recognition models

Integration with existing mobile public network services

Further Development


A mobile environmental monitoring system

designed to help allergic people

Thank you for your attention!


Project Cost

Component Cost

Pocket PC 400 € Add-on 60 € Unit Price/Quantity

10-99

100-299

300-999

E-nose chip 189 € 147 € 95 €Total 649 € 607 € 555 €


8 piezoresistive differential output resistances

Electrically separated Gold immobilisation layer

Electrically separated Gold immobilisation layer

· Integrated temperature sensor

· EEPROM on-chip for storage of calibration data

aristotle university of thessaloniki faculty of engineering department of electrical and computer...

Documents

computer engineering

allergic people

years old student slide

allergic diseases asthma

allergic crisis

allergic reaction

epidemic of allergic

risk factor