1 / 16

Disposable Mattress Cover with Conductive Threads to Detect Wetness using Resistance Comparison

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

jacob
Download Presentation

Disposable Mattress Cover with Conductive Threads to Detect Wetness using Resistance Comparison

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


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

  2. Motivation • 2 million cases of nosocomial (hospital-acquired) infections annually (CDC) • Wet bedsheets increase risk of infection

  3. Design Objectives • Use biodegradable plastic and paper • Stitching conductive threads on the paper to detect wetness • Design a detection unit • Detect a break in the circuit • Detect wetness • Isolate electrical circuitry from patient

  4. Cost Analysis

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

  6. Mattress Cover Construction • Plastic attached to paper using adhesive • Plastic on the bottom side, paper on the top

  7. Conductive Thread Stitching • Conductive threads laid out on paper in two loops, of 40 ft each • Regular threads used to stitch conductive threads on paper

  8. 12V AC/DC Adapter + Transformer Fuse 9V Regulator Power Supply • Transformer and fuse used to protect against voltage spikes

  9. Detection Unit Continuity detection Opto-isolator Output Reading from mattress cover Wetness detection

  10. Detection Unit Schematic

  11. Communication between Pad and Detection Unit • Plastic clip • Four metal pads contact the conductive loop on sheet • Wires soldered to pads connect the clip to the detection unit

  12. Modifications to Proposed Items

  13. Current Status • Stitched a paper bedsheet (has discontinuities) • Tested unit with a cotton bedsheet • Stitched a (non-working) paper bedsheet • Built detection unit • Designed a prototype connector

  14. Steps for Marketable Product • Include clip in connector • Casing for detection unit • Investigate cheaper conductive threads • Implement with full-size hospital bedsheet nor biodegradable polyethylene • Optimize resistances in detection unit

  15. Video • If time allows, video of a project demonstration

  16. Any Questions?

More Related