mobile tool for data presentation of a body sensor network

Next Generation Networks and Applications Group

Networks and Multimedia

Instituto de Telecomunicações, Portugal

Department of Informatics

University of Beira Interior, Portugal

Mobile Tool forData Presentation of a Body Sensor Network

Paulo Neves and Joel RodriguesInstituto de Telecomunicações

Universidade da Beira Interior, Covilhã

[email protected], [email protected]

mailto:[email protected]


2RTCM 2009, Covilhã

Summary

• Introduction

• System Architecture

• Application Features

• API and Screenshots

• New Biosensor Development

• Conclusions

• Future Work

2


Introduction

• Body Sensor Networks

• Sensor Networks in medical applications

• Sink node and biosensor nodes

• Mainly single-hop

• Data presentation

• From sensorial data to meaningful data for medical staff and user

• Data storage

• Latter analysis

• Historic data

• Existing solutions

• PDA-based

• Personal computer based

• Dedicated device

3


System Architecture

• Three tier architecture

• Biosensor

• Sink

• Mobile phone

• Mobile phone requirements

• Bluetooth™

• Java™

• Several Biosensors

4


System Architecture (cont.)

5


Application Features

• Mobile API porting

• Scalable interface

• Continuous biosensor monitoring

• Up to 8 channels (sink dependent)

• Two main screens

• Real-time biosensor value

• Time-based graphical representation

• Bluetooth™

• Almost ubiquitous communication

• Sink requires application authentication

• Strict control over communication

• Exception handling

6


Application Features (cont.)

• Data storage

• CSV file

• Automatic deploy on in-range devices

• Programmable threshold

• Efficient use of mobile phone keyboard

• Shortcuts - channel and screens

• Autonomous operation

7


API

• Application Programming

Interface

• Based on personal computer API

• Java™

• Without proprietary SDKs

• Communication

• Interface

• Biofeedback

8


Screenshots

9


Tests and Validation

• Extensive testing

• 24 hours rundown

• Wireless communication

• Communication disruption

• Multitask

• SMS and phone calls

• Installation and testing in

• Nokia 5200

• Nokia 6280

• Nokia N95 8GB

• Nokia N80 IE

• Nokia 6630

10


New Biosensor Development

• Intra-vaginal temperature monitor

• Inexistent biosensor

• Prototype

• Project in cooperation with Faculdade de Ciências da Saúde da UBI and Centro Hospitalar da Cova da Beira

• Medical studies

• Ovulation period

• Conceptive and contraceptive methods

• Drug effects

11


Prototype

12

• AlfaTXP board

• SD card storage

• Analog inputs

• GE MA100 thermistor

• Medical temperature sensor

• Converts temperature in resistance

• Response curve through table in data sheet


Software and Initial Results

• USB connection

• Continuous monitoring

• Data logging

• First results

• Issued on women in hospital facility

13


Work in Progress

• Integration of IP in WSN

• Historically - IP and WSN do not play well together

• Gateway - based approach

• IP stack on the sensor

• Hybrid - sink with NAT mechanism

• IP over WSN

• 6LoWPAN

• ContikiOS (IPV6 Ready) e TinyOS

• Testbed with Crossbow TelosB and IRIS

• Extension to BSN

• Intra-vaginal temperature monitoring biosensor

• Challenges: miniaturization

• Wireless communication

14


Conclusions

• Personal mobile application

• Device generality and robust communication

• Real-time data presentation

• Absence of mobile phone does not interfere with

• CSV file storage for latter analysis

• New biosensor for intra-vaginal temperature monitoring

• IP over WSN empowers ubiquitous computing

15

Next Generation Networks and Applications Group

Networks and Multimedia

Instituto de Telecomunicações, Portugal

Department of Informatics

University of Beira Interior, Portugal

Mobile Tool for Data Presentation of a Body Sensor

Network

Paulo Neves, Joel RodriguesInstituto de Telecomunicações

Universidade da Beira Interior, Covilhã

[email protected], [email protected]

Thanks for your time!



mobile tool for data presentation of a body sensor network

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