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Innovation application: Smart Garment Prototype with Enuresis Alarm

Title Smart Garment Prototype with Enuresis Alarm
Abstract

Smart textiles is a modern, fast-growing interdisciplinary research field. One of the central problems, which concerns garments with embedded electronics, is interconnection of the embedded components. Since rigid printed circuit boards (PCBs) are not particularly suitable for some practical applications, in this prototype the components are integrated using an embroidery machine. The advantages of this approach are the following: the garments preserve flexibility, the procedure and the materials are cheap, besides that, it enables one to speed-up production, while keeping the component size to a minimum. The developed prototype is a child’s underwear set with a built-in alarm and a moisture sensor that helps to treat enuresis in children under the age of five years.

Keywords Smart textiles, embroidery, interconnection of the electronic components, enuresis alarm
Authors Uģis Briedis
Aleksandrs Vališevskis
Marianna Grecka
Department (14D00) Dizaina tehnoloģiju institūts
Statistical Classification of Economic Activities, NACE 2 Human health activities
Description of the technology

The prototype (Fig. 1) consists of a shirt with detachable embroidered control unit circuit (Fig. 2) and power supply unit, as well as underpants with embroidered enuresis sensor. Both parts are connected using two metal snap buttons. The conductive traces are embroidered on the front part of the shirt and on the middle front part of underpants.

Fig. 1. Smart garment prototype with enuresis alarm.

Fig. 2. Embroidered flexible textile board.

Single jersey of cotton (95%) and elastane (5%) is used as the basic textile material for the prototype. Due to fabric elasticity, it was first interlined and then embroidered, afterwards parts of the garment were cut out and nonwoven interlining was taken off. Using the same conductive threads that were used for the traces, metal snap buttons are sewn to the front part of the shirt and the underpants, as well as to the removable embroidered control circuit and power supply unit. The electronic parts are placed into specially provided shoulder pockets. This area was chosen because of the lower risk to damage the electronic components during sleep. Detachable parts simplify garment cleaning.

Applications The prototype developed is a child’s underwear set with a built-in alarm and a moisture sensor, which helps to treat enuresis in children under the age of five years. The system functions as designed – when the sensor is activated by conductive liquid, the alarm activates and beeps until the wet sensor is disconnected.
Advantages

Compact electronic components are integrate directly into the fabric and connected using conductive threads, seeking to avoid using rigid PCBs as much as possible.

Technology Readiness Level Technology demonstrated in relevant environment
Partnership offer • Contracts for launching production. • Contracts for consulting services. • Participation in the establishment and development of the spin-off.
Publications
ID 63
Contact information Linda Šufriča, e-mail: inovacijas@rtu.lv; phone.: 28442736