Smart Shower Yellow A Sketch Model Presentation October 4 th , 2007 - - PowerPoint PPT Presentation

Smart Shower

Yellow A Sketch Model Presentation October 4th, 2007

Overview

■ Problem

❑ Water waste due to shower habits

■ Customer

❑ Households, Hotels, Gyms

■ Market

❑ Over $7 billion a year in bathroom remodeling

Critical Considerations

■ Pressure Regulation ■ Usability

❑ Automatic Detection ❑ Active User Input

Automatic Shower Concept

■Installation

❑Retrofit vs. New Shower

?

Homeowner’s Existing Shower

Pressure Control via Sensors

■ User Activated System ■ Automatic System

User Activated System

■ Push Button ■ Infrared Sensor ■ Sound Detection with Microphone

❑ Location neutral ❑ Shower noise vs. singing and clapping

Intensity of Clapping and Singing in Shower

Sound Pressure (Pa)

1.75 1.9688 2.1875 2.4063 2.625 2.8438 3.0625 3.2813 3.5

Clapping Singing Sound Pressure (Pa) Shower Noise Sound Intensity of Clapping and Singing in Shower Microphone in Shower

29.1581 29.3008 29.6322 29.903 29.9646 30.0552 30.2458 30.4092 30.5091 30.5864 30.8307 30.935

Automatic System

■ Pressure Mat ■ Photodetector

❑ Light through water

Light Detection Switch Data Through Water Flow in Shower On Off Time (s) No human under flow Human under flow Photodetector in Shower Frequency= .02381 s^-1

Next Steps

■ Usability vs. Ease of Installation

❑ Retrofit + User Activated ❑ New Shower + Automatic