The integration of smart textiles enabling a non- invasive approach in monitoring the user’s vitals and activities Prof. Lieva Van Langenhove Department.

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Presentation transcript:

The integration of smart textiles enabling a non- invasive approach in monitoring the user’s vitals and activities Prof. Lieva Van Langenhove Department of textiles

Components Sensors and actuators Communication devices Energy supply Data processing Connections and interconnections  Miniaturisation, packaging, integration, transformation into textiles  Concepts and electro/photo active materials

Why textiles? All around Versatile Light weight Large contact area with body Comfortable Easy to use

Electro conductive textiles Stainless steel Kevlar coated with KnittedWovennon woven polypyrrol copper gold

Effects from nano to macro

Conductive knitted textiles as sensor TextrodesRespibelt

EMG monitoring Myography for stress measurement Contactless Professional use EMG sensors embroidered laminated (

Pressure sensors Double layer fabric: No contact contact Quantum tunneling effect

Any mechanism that changes conductivity is exploitable for sensors Carbon nanotubes for conductivity Fibre expansion changes conductivity: Extension Heating Humidity Chemicals (E. Devaux ENSAIT)

Humidity control Sensors: Absorption: Thermoresponsive gels Supporting design

Optical sensor Signal A’ Smart interface Signal B Textile fibre Sensor/ Processing unit Signal A filter

Smart interface: active dyes skin pH days Skin pH-variation after burn wound L. Van der Schueren, K. De Clerck

Communication Within components Between components in a suit ‣ Conductive fibres ‣ Optical fibres With the wearer: keyboard, display Wide environment: Inductive (embroidery) Antenna (printing)

Data processing: Motherboard

Fibre transistor Conductive core: gate Insulating coating Semiconductor coating Electrode: source Electrode: drain Semiconductor Source Insulator Gate Drain OFET: organic field effect transistor

Coating: from dip to padding

OFET textile integration Weaving structure Right patterns Right contacts No falso contacts Stable contacts 100µm Gate source drain

PEDOT based battery

Printed battery: results

Energy from light: PV Solar bags

Energy from motion: piezo electrics Deformation leads to E field Needs large surface, no thickness PVDF Challenges: Materials Concepts Production (poling) Electrode Piezo electric layer Electrode

Smart textile research Based on (semi)conductive materials and structures Smart dyes Conceptual design Modelling and simulation Manufacturing Testing

Inner garment

Outer garment Accelerometers GPS Antenna Textile Antenna Flexible Battery External Temperature Alarm Data Recording Processing Transmission

Victim patch Parameter Heart beat rate Respiratory rate Body Temperature Cfr. inner garment

Key issues Comfort Working conditions – relevant parameters Effective alarm generation System maintenance Ease of use Weight Cost Robustness Energy constraints Long range transmission

Monitoring Centre

Accelerometers GPS Antenna Textile Antenna Flexible Battery External Temperature Alarm Data Recording Processing Transmission 150€ 25€ >600€ 1500€

Coordination action for enhancing the breakthrough of intelligent textile systems (e-textiles and wearable Microsystems) COLAE: Commercialisation Clusters of OLAE