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العنوان
Using non-contact biosensor for
smart clothes /
المؤلف
Mohamed,Aliaa Abdel Aziz.
هيئة الاعداد
باحث / Aliaa Abdel Aziz Mohamed
مشرف / Yong K. Kim
مشرف / Hebatullah Abdel-Hamed
مشرف / Zaynab M. Abdel Magid
مشرف / Enas A. H. El Okda
تاريخ النشر
2017
عدد الصفحات
162p.:
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
اقتصاد منزلي
تاريخ الإجازة
1/1/2017
مكان الإجازة
جامعة عين شمس - كلية البنات - اقتصاد منزلى
الفهرس
Only 14 pages are availabe for public view

from 162

from 162

Abstract

Smart clothes are garments with new features which provide
sensing, communication with the environment and the wearer condition
and stimuli. Senses responses can be in different forms such as electrical,
thermal and mechanical. Biosensors are sensors able to measure the vital
signs like respiration, temperature and heart rate.
Non- contact biosensor fabrics is an alternative method for
persons who have sensitive or weak skin and can’t allow conventional
electrode.
This study was carried out in order to produce knitting sensor
fabric, suitable for sensing human breathing (mechanical movement). The
sensor fabric manufactured from Silver coated nylon yarn knitted with
Nylon / Lycra yarn differ in their combination ratios as well as other
knitting production parameters such as, stitch length, knitting construction
(single jersey and Rib structure) and needle numbers which refers to the
width of the knitted fabric sensor, adding to that using the float stitch in
order to study the influence of the different stitch on the electrical
resistance. It can be a part of a cloth attached or applied on the human
body for monitoring breathing status.
In order to reach the reliable breathing sensor a cyclic tester was
designed and built, this device simulate the mechanism of breathing as
well as compute the electrical resistance of the fabric during stretching
(contraction/ relaxation). Besides, the change of electrical resistance was
calculated which is important for the discrimination of the breathing rate.
from the results it can be seen that, the production parameters
have a great influence on the electrical resistance values. The combination ratio (CR), number of needles (width of the sensor), and stitch type (ST)
has a significant increase on the resistance values and change of
resistance. Furthermore, the less the number of conductive yarns
combined with non-conductive yarn the higher resistance will be and the
higher the change of resistance the better the accuracy of discrimination
of breathing cycles.
Finally, A prototype of smart belt was designed, attached with the
reliable breathing knitted sensor (optimum sample) and data transferred
with wireless via Bluetooth measuring unit.
Key words: Conductive knitting fabric - Smart clothes - Wearable
biosensor - Breathing sensor- Stitch type - Combination ratio.