Appliance TexterMid-Semester Presentation

Senior Design IFebruary 18, 2010

Appliance Texter Team

Casey Cook

Perriea Wiley

• Steven Howell

• Steven Cullen

•Raymond Winton

OutlineIntroduction

ProblemSolution

ConstraintsTechnicalPractical

Hardware Wiring ConfigurationTechnical TradeoffsTimeline ExpectationsProject Progression

Problem (s)

Power Consumption

Safety

Worries

Time Consumption

SolutionAllow consumers the ability to remotely

monitor and control the state of their home appliances.

Wireless Communication via (SMS)

Wireless Controls via (SMS)

-Hardware Block Diagram-

GSM Module

Power Supply

Relay

DAC

Current Sensor

System Overview

Project Constraints

Technical

Practical

Technical Constraints

Practical Constraints

Social – Simple:Many Service Providers

Easy SetupPlug it inInsert sim cardText

User – FriendlyMajority of population knows how to text

Manufacturability - SizeAppeal

Users don’t want a bulky product.

CompatibilityMust fit the NEMA 5 standard

Project Trade - Offs

Power Source

Power source Price Longevity Complexity Mantenance

Switching Low High Low None

Battery Medium Low Medium Medium

Switch Selection

Switch Selection Price Range Size Reliability

Solid State Relay High($35.20) Small High

Mechanical Relay Low($2.50) Medium Medium

Triac Medium($9.07) Medium High

Service Network

Service Network Price Setup Plans Providers

Gsm Lowest Easy Many Many

Cdma Medium Complex Few Few

TimelineTime line January Febuary March April

Research

Hardware Testing

Programming

Prototype Testing

Optimizing

Progression

Parts - Info

GSM Module Relay

Current Sensor

Power Supply

Testing

References [1] Digi-Key Power Supply 3.3V, 2009 [Online] Available: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=285-1887-ND [2] Quad Band GSM864 Module, 2009 [Online] Available: http://www.semiconductorstore.com/cart/pc/viewPrd.asp?idproduct=42884 [3]Tyco Electronics Catalog 1308242 Issued 3-03 [Online] Available http://www.tycoelectronics.com/catalog/bin/TE.Connect?

C=1&M=BYPN&TCPN=1308242&RQPN=1308242 [4] Jumping the Colts’ route, Jed Jacobsohn/Getty Images 2010 [Online] Available http://espn.go.com/blog/nfcnorth/post/_/id/9853/jumping-the-colts-routes [5] Studies show Latinos Climb Socio-Economic Ladder, Walter Ewing. [Online]

Available: [6]http://immigrationimpact.com/2009/12/07/studies-show-latinos-climb-socio-

economic-ladder-of-success/ [7] http://www.brad.ac.uk/img/2004/Text%20Messaging%202.jpg [8] http://www.gsmworld.com/roaming/GSM_AmericasPoster2009A.pdf [9] http://ronpai2.files.wordpress.com/2009/01/text-messaging.jpg [10] http://www.att.com [11] http://farm3.static.flickr.com/2658/3811881764_e60231b3af_o.jpg [12] http://www.biztoolbelt.com/uploads/razorbook-400-mini-laptop-thumb.jpg

Questions?