preliminary design review your logo here team leader: thomas c. null, iii team members: andrew...

Preliminary Design ReviewYour Logo Here

Team Leader: Thomas C. Null, III

Team Members: Andrew Tomlinson, Matthew Gunter

Faculty Advisor: Dr. Roger King

Department of Electrical and Computer Engineering

Mississippi State University

Home Command Center Abstract

The Home Command Center (HCC) will allow the user specify a complex appliance or lighting control schedule from the main module. The user interface will consist of a keypad and a LCD. The HCC will allow the user to key in this schedule at the main module, plug in a control module at the appliance, and then forget about it. The current design uses X-10 technology for the appliance control. The timing schedule will always be accurate and not be compromised by power outages, because the HCC incorporates a WWVB time receiver to acquire and maintain the time. All of the subsystems of the HCC are controlled by a BS2-IC, which keeps the schedule in its internal memory. Future additions to the HCC will include: remote access to timing schedules via dial-up or Internet and infrared or RF appliance control.

HCC Team

Tom Null a.k.a. D.K. Senior B.S. Student, Electrical EngineeringLeader

Andrew Tomlinson a.k.a FatmanSenior B.S. Student, Electrical EngineeringGrunt

Matt Gunter a.k.a. CatdaddySenior B.S. Student, Electrical EngineeringGrunt

Dr. Roger L. KingProfessor, Mississippi State UniversityDepartment of Electrical and Computer EngineeringAdvisor

What is the Home Command Center?

Primary Function Time Acquisition Method User Interface Dynamic Alarm Scheduling Appliance Control Method

Why the Home Command Center?

Security during vacation

No need to reset clocks

No need to check batteries

Accommodate for complex schedules

Design Requirements

X-10 WWVB Keypad LCD

Hardware Integration/Runtime Software

Test Test Test Test

Test

FinalProduct

•Soft/Hardware Modules•Component Integration•Component Layout•Shipping/Installation•Costs

UltraLink WWVB Receiver


FinalProduct

Test

TestTestTest

LCDKeypadWWVBX-10

Test

•Why Chosen?•WWVB Radio Station•Time acquisition•Receiver Placement•Receiver/Decoder•Connections•Software

Powerhouse X-10


Test Test Test Test


Test

FinalProduct

•Why Chosen?•Functionality•Powerline Interface/Appliance Module•Connection•Software

User Interface


Test Test Test Test


Test

FinalProduct

•Why Chosen?•Keypad Connection•Scanning Software•LCD Connection•LCD Software

LCD

Test

Module Integration


Test Test Test Test


Test

FinalProduct

•Hardware Modules Integrated•Runtime Software Created•Menu Structure description

Layout and Prototype


Test Test Test Test


Test

FinalProduct

•5 Components to HCC•Internal layout of main module•Housing construction•External Appearance•Connections to external Components

Test Specifications

Test Test Test Test

Test



FinalProduct

•Module Tests•Module Integration•Prototyping•Shipping tests•Installation

WWVB Test Results


FinalProduct

Test

TestTestTest

LCDKeypadWWVBX-10

Test

•Signal Acquisition tests•Quality of Signal•Antenna placement•Average Time 4.4 min

X-10 Test Results


Test Test Test Test


Test

FinalProduct

•Verify appliance control ability•Tested on variety of rooms and apps•100% effective in tested house

Sending Room Receiving Room Appliance Function Success?Tom's Room Matt's Room Lamp On yesTom's Room Matt's Room Lamp Off yesMatt's Room Living Room Stereo On yesMatt's Room Kitchen Coffe Maker On yesMatt's Room Kitchen Coffe Maker Off yesLiving Room Tom's Room Fan On yes

User Interface Testing


Test Test Test Test


Test

FinalProduct

•LCD formatting tests•Keypad tests•Keypad/LCD test•WWVB info display test

LCD

Test

Module Integration Results


Test Test Test Test


Test

FinalProduct

•Bread boarded all components•Inter-module software trials•Runtime Software trials (in progress)•Main module and Antenna housing (in progress)

Prototyping Results


Test Test Test Test


Test

FinalProduct

•Component Dimensions 6 x 3.5 x 1.5 inches•Power 0.65 Watts < 1 Watt•Current 150mA; 300mA supply•Cost of prototype = $270.00

Shipping and Install Results


Test Test Test Test


Test

FinalProduct

•Before packing: 0.031 cubic feet; 2.8 lbs •Packing material description•After packing: 10x4x8 inch box; 3 lbs

•Ease of Installation•5 step process•Instruction Manual for menu setup

UPS cost Fedex costNext Day $16.25 Priority Overnight $22.31

Airsaver $14.00 Standard Overnight $19.48 2-Day $7.10 2-Day $11.24 3-Day $6.00 3-Day $10.16

Final Product


Test Test Test Test


Test

FinalProduct

•Estimated Price = $85.00•Small package•Flexible usage•Fire and forget Scheduling

Future Work

•Expanded Capabilities including:

•Infrared appliance control•RF (wireless) appliance control•Software upgrades through serial port to PC•Increased capability through computer connection•Remote access to HCC which is connected to PC over internet or dial-up

References

D. Parker, Personal Communication, Starkville, Mississippi, USA, September 10, 1999.

R. Mack, "WWVBTIME.BS2," ftp://ftp.ulio.com/wwvbtime.bs2, Ultralink, Inc., USA, June 1999.

"Basic Stamp Manual version 1.9", Parallax, Inc., Rocklin, CA, USA, 1998.

321BS Manual, Ultralink, Inc., USA, August 1999.

"ASIhome Home Automation Products," http://store.yahoo.com/asihome/ newtox10basics.html, ASIhome, USA, 2000.

D.G. Newnan and J. P. Lavelle, Engineering Economic Analysis, Engineering Press, Austin, Texas, 1998.

A. Williams, Microcontroller Projects With Basic Stamps, R&D Books, Lawrence, Kansasm, 2000.

"Product Documentation", http://www.parallaxinc.com, Parallax Inc., Rocklin, CA, USA, 1999.

preliminary design review your logo here team leader: thomas c. null, iii team members: andrew...

Documents

control module

module integration x

user interface x

home command center

powerhouse x

prototype x

design requirements

team leader