Expendable Mattress Cover with Conductive Threads to Detect Wetness utilizing Resistance Comparison

Presentation Transcript

ECE 4884 L03 Advisor: Dr. Koblasz Disposable Mattress Cover with Conductive Threads to Detect Wetness utilizing Resistance Comparison Team Members: Ankit Hemani Jacob Huang Yuval Rooz Heonwoo Song Sarju Vasavada

Motivation 2 million instances of nosocomial (doctor's facility obtained) diseases every year (CDC) Wet bedsheets increment danger of contamination

Design Objectives Use biodegradable plastic and paper Stitching conductive strings on the paper to identify wetness Design a location unit Detect a break in the circuit Detect wetness Isolate electrical hardware from patient

Cost Analysis

Layout Of Mattress Cover On Hospital Bed Source: http://www.ponsishoes.com/products.asp

Mattress Cover Construction Plastic joined to paper utilizing glue Plastic on the base side, paper on the top

Conductive Thread Stitching Conductive strings laid out on paper in two circles, of 40 ft every Regular strings used to fasten conductive strings on paper

12V AC/DC Adapter + Transformer Fuse 9V Regulator Power Supply Transformer and breaker used to secure against voltage spikes

Detection Unit Continuity d etection Opto - isolator Output Reading from sleeping cushion cover Wetness d etection

Detection Unit Schematic

Communication amongst Pad and Detection Unit Plastic clasp Four metal cushions contact the conductive circle on sheet Wires patched to cushions associate the clasp to the discovery unit

Modifications to Proposed Items

Current Status Stitched a paper bedsheet (has discontinuities) Tested unit with a cotton bedsheet Stitched a (non-working) paper bedsheet Built identification unit Designed a model connector

Steps for Marketable Product Include cut in connector Casing for recognition unit Investigate less expensive conductive strings Implement with full-estimate healing facility bedsheet nor biodegradable polyethylene Optimize resistances in recognition unit

Video If time permits, video of a venture exhibit

Any Questions?