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D5.4: Multi-sensor system integrated into wearable fabrics

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MOBISERV

FP7 248434

1

Introduction and features

1.1

Executive summary

This document accompanies the actual / “physical” prototypes of the MOBISERV Wearable
Health Supporting Unit (WHSU) (shirt and band for daily use, pyjamas for night use,
together with a data logger and an application on PC). It aims at providing general
information about the prototype(s) and to briefly explain how they work.

1.2

General overview

The WHSU can be used in two different configurations. The first one concerns the direct use
with secondary user; that means without the need of the complete MOBISERV infrastructure.
The two actors are the patient and the healthcare professional. The figure below shows the
configuration needed.

Figure 1: Direct connection with secondary user

This configuration can be used in the hospital or during a medical examination and does not
need any intervention from the patient.

The  second  configuration  is  the  complete  system  involving  the  PRU,  the  SHACU  and  the
WSHU.  This  configuration  is  used  daily  at  home.  The  difference  between  the  two
configurations  is  the  application  on  PC.  The  viewer  for  the  secondary  user  allows  the
visualization  of  the  whole  set  of  vital  signs  and  extracted  parameters  in  real  time  while  the
second configuration is a full long term monitoring of the patient in his/her daily life.
The data logger monitors vital signs (ECG and respiration), activity (3-axis acceleration) and
physiological extracted parameters, which are Heart rate (HR), Breathing rate (BR), activity
classification  (lying,  standing,  walking,  running  and  others).  All  the  data  can  be  recorded
(daily or nightly sessions) in a removable SD memory card (recording mode) or / and sent in
real time via Bluetooth to a PC (streaming mode). All recorded vital sign and processed data
can  be  downloaded  via  USB  link  while  the  data  logger  is  recharging.  It  is  a  convenient,
economical way for later review of the recorded information.

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Содержание MOBISERV FP7 248434

Страница 1: ...nvironment for the Provision of Health Nutrition and Mobility Services to the Elderly Final Deliverable D5 4 Multi sensor system integrated into wearable fabrics Date of delivery Month 38 Contributing...

Страница 2: ...wed for submission added comments V1 2 2013 04 11 Marc Correvon CSEM Modification according comments see V1 1 Major modification sections 6 2 and 6 3 The information contained in this report is subjec...

Страница 3: ...Data Format 19 4 DATA LOGGER 21 4 1 HARDWARE DESCRIPTION 21 4 2 MICRO SD CARD MEMORY 21 4 3 CONNECTORS 22 4 3 1 USB 22 4 3 2 Sensor jack 22 4 4 SPECIFICATIONS 22 4 4 1 System specification 22 4 4 2 Da...

Страница 4: ...D MANUFACTURER S DECLARATION EMC EMISSIONS 35 7 3 GUIDANCE AND MANUFACTURER S DECLARATION EMC IMMUNITY 35 7 4 RECOMMENDED SEPARATION DISTANCES 37 7 5 COMPLIANT CABLES AND ACCESSORIES 38 7 6 ESSENTIAL...

Страница 5: ...e 10 One of the two conductive cuffs with the integrated temperature sensor 15 Figure 11 Female version of the nightgown 16 Figure 12 MOBISERV ANT module with the housing 17 Figure 13 Data logger over...

Страница 6: ...ing mode description 24 Table 10 Selectable mode by the mode switch 25 Table 11 Selectable mode by the mode switch 25 Table 12 Communication channels acquired signals raw data 26 Table 13 Communicatio...

Страница 7: ...adio Service GPS Global Positioning System HR Heart Rate HRV Heart Rate Variability IPsec Internet Protocol Security LDA Linear Discriminant Analysis MMSE Mini Mental State Examination MPEG 7 Moving P...

Страница 8: ...amination and does not need any intervention from the patient The second configuration is the complete system involving the PRU the SHACU and the WSHU This configuration is used daily at home The diff...

Страница 9: ...logy The fourth chapter describes the data logger in terms of hardware specifications and maintenance The fifth chapter gives an overview of the monitoring infrastructures for both the secondary user...

Страница 10: ...of sensors integrated into the textiles given to the fact that they can be considered sufficient for the proposed scenarios In the following chapters the final prototypes of garments are presented and...

Страница 11: ...to the shirts to customize the dressing and to increase thermal comfort Textile electrodes are integrated into an adjustable strip to enhance the fitting of the sensing part to the user The shirts ar...

Страница 12: ...label with instructions for the correct use of shirts A very simple label assists the user by means of four basic steps during the use of the WSHU The final prototypes of shirts for female and male ar...

Страница 13: ...ers that do not want to wear the sensorized shirt for the whole day The band has been improved by Redesigning pocket to increase ergonomics and comfort Using different colours for the inner and outer...

Страница 14: ...ist of bullets describes the improvements made with respect to previous pyjamas prototypes Pyjamas are replaced by nightgown to increase comfort and usability Pockets are closed by Velcro to prevent e...

Страница 15: ...skin electrode contact without losing comfort The chosen sensor is the same commercial thermistor of the previous prototypes which gives reliable information with a 0 1 degree of accuracy One sensor h...

Страница 16: ...ghtgown presents a Two textile electrodes placed on the cuffs that can be used to detect ECG and are adjustable by means of elastic ribs b One thermistor inserted into the cuff c One custom connector...

Страница 17: ...3 1 Hardware description MOBISERV ANT TM module provides the following accessories one 3 pin ERNI connector for the thermistors one on off switch one status led blinking when transmitting Figure 12 MO...

Страница 18: ...cs Temperature Front Ends 2 identical Type of measurement Two wires DC measurement Range 22400 to 42388 Bandwidth DC to 0 5 Hz ADC Sampling rate 32 Hz ADC Resolution 16 bits 3 2 3 ANT TM Channel descr...

Страница 19: ...parameters listed in Table 3 The data are transmitted according to ANT SensRcore Global Data Message Format that is reported in Table 4 in which Global Data identification byte value is 0x41 analogue...

Страница 20: ...ta USHORT 0 65536 The measured A D data from the analogue signal LSB first The measured A D data represents the voltage drop across the thermistor In order to calculate the corresponding resistance va...

Страница 21: ...OBISERV data logger provides the following features one 4 pin jack connector for textile sensors ECG and IPG or strain gauge one USB connector for configuration and data transfer one micro SD memory c...

Страница 22: ...or jack The jack connector with 4 pole is used to connect the textile electrode for ECG measurement and for the IPG measurement for breathing monitoring 4 4 Specifications 4 4 1 System specification T...

Страница 23: ...umber of leads 1 Input sensitivity 5mV Bandwidth 0 05Hz to 30Hz Resolution Equivalent to12 bits Sampling rate 1000Hz Respiration Type of measurement Impedance Plethysmography IPG Sensor Textile electr...

Страница 24: ...as lying standing walking running or other 4 4 4 Power consumption versus operating mode The lifetime of the battery is strongly dependant of the data logger operating mode Bluetooth is the most impo...

Страница 25: ...he status of the data logger during the selection with the switch mode and either the quality of the ECG and respiration signals or the state of Bluetooth during operation The four LEDs consist of one...

Страница 26: ...ted to each of them Table 12 gives the definition of these primary signals Table 12 Communication channels acquired signals raw data Number Name Size bits Format Rate Hz 1 ECG AI 12 Signed 250 6 Acc X...

Страница 27: ...activity and the posture can be extracted from these three signals Five levels of activities have been defined Table 15 Activity classification Activity classification Activity type 0 Other 1 Lying 2...

Страница 28: ...exercising and F06 Response to a fall of the user The idea has been to offer a Graphical User Interface to enable the control of the data logger as well as the visualization of the data extracted from...

Страница 29: ...Manager DownloadManager is a daemon application which automatically handle the USB connection and downloads existing sessions in the Data Logger SD memory card 5 6 SessionManager This is the object in...

Страница 30: ...ted into wearable fabrics 30 42 MOBISERV FP7 248434 the translation of the operations coming from the upper layer to the stack which is written in Java Figure 15 Collaborating components of Exercises...

Страница 31: ...cording mode Both modes can be used simultaneously The software package used for the Mobiserv project is split into two main parts a daemon running in background which is in charge of downloading new...

Страница 32: ...tion to launch it The launch of the Mobiserv Data Logger Server application provides this message Figure 18 Message telling a successful start of the Mobiserv Data Logger Server Once the data logger i...

Страница 33: ...rvice implemented in the robot to manage activities and exercises use an internal TCP communication to the server which will be seen as a data logger driver It also manages the activities and the sche...

Страница 34: ...inserted in regular data blocks connect Establishes automatically the connection to the device throw Bluetooth It polls the device forever and checks the connection It will try to connect the device c...

Страница 35: ...ow The customer or the user of the Mobiserv data logger should assure that it is used in such an environment Table 18 Electromagnetic emission Emissions test Compliance Electromagnetic environment gui...

Страница 36: ...rt interruption and voltage variations on power supply lines IEC61000 4 11 N A Mains power quality should be that of a typical commercial or hospital environment If the user of the MOBISERV data logge...

Страница 37: ...itters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy To a...

Страница 38: ...nge applies NOTE 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people 7 5 Compliant cables and acc...

Страница 39: ...ly the electrodes with tap water Figure 19 Procedure to wet the electrodes 2 Wear the shirt the band or the pyjama and plug the connector to the MOBISERV Data Logger Figure 20 Plugging the connector o...

Страница 40: ...electronic inside the band and T shirt 5 For the MOBISERV pyjama only Turn on the MOBISERV ANT TM module by pressing the On Off switch The led will start blinking Figure 23 Turning on the ANT module...

Страница 41: ...basic rules listed below Only perform the procedure described in the user manual Do not disassemble or service your device yourself Protect your device from shocks hard and sharp objects extreme heat...

Страница 42: ...sensor system integrated into wearable fabrics 42 42 MOBISERV FP7 248434 9 4 Disposal of device Please dispose of the device in an appropriate way treating it as electronic waste Do not throw it in t...

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