Design Review

1
Design Review

• 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

2
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.

3
Design Review

• 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

4
Team Home Command Center

• Tom Null a.k.a. D.K.
• B.S. Electrical Engineering
• Leader
• Andrew Tomlinson a.k.a Fatman
• B.S. Electrical Engineering
• Grunt
• Matt Gunter a.k.a. Catdaddy
• B.S. Electrical Engineering
• Grunt
• Dr. Roger L. King
• Professor, Mississippi State University
• Department of Electrical and Computer
  Engineering Advisor

5
Existing Scheduling Devices

• Full PC 500
• Existing Command Centers 70
• Electric Timers 20
• Mechanical Timers 10

6
HCC Functionality

• Primary Function
• Time Acquisition Method
• User Interface
• Appliance Control Method

7
Design Requirements
X-10
WWVB
Keypad
LCD
Hardware Integration/Runtime Software

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

Final Product
8
UltraLink WWVB Receiver
LCD
Keypad
WWVB
X-10

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

Test
Test
Test
Test
Hardware Integration/Runtime Software
Test
Final Product
9
X-10 Appliance Control
X-10
WWVB
Keypad
LCD

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

Test
Test
Test
Test
Hardware Integration/Runtime Software
Test
Final Product
10
User Interface
X-10
WWVB
Keypad
LCD
LCD

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

Test
Test
Test
Test
Test
Hardware Integration/Runtime Software
Test
Final Product
11
Layout for the Prototype
X-10
WWVB
Keypad
LCD

• Five Components to HCC
• Internal layout of main module
• Housing construction
• External Appearance
• External Components

Test
Test
Test
Test
Hardware Integration/Runtime Software
Test
Final Product
12
Test Specifications
Test
Test
Test
Test

• Individual Module Tests
• Prototyping
• Shipping tests
• Installation

Test
13
WWVB Test Results
LCD
Keypad
WWVB
X-10
Test
Test
Test
Test
Hardware Integration/Runtime Software

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

Test
Final Product
14
X-10 Test Results
X-10
WWVB
Keypad
LCD

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

Test
Test
Test
Test
Hardware Integration/Runtime Software
Test
Final Product
15
User Interface Testing
X-10
WWVB
Keypad
LCD

• LCD/Keypad Tests
• Software for Interface
• Debugging
• Optimization
• Formatting

LCD
Test
Test
Test
Test
Test
Hardware Integration/Runtime Software
Test
Final Product
16
Prototyping Results
X-10
WWVB
Keypad
LCD

• Component Dimensions 6 x 3.5 x 1.5 inches
• Power 0.65 Watts
• Current 150mA 300mA supply
• Cost of prototype 290.00

Test
Test
Test
Test
Hardware Integration/Runtime Software
Test
Final Product
17
Shipping and Install Results
X-10
WWVB
Keypad
LCD

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

Test
Test
Test
Test
Hardware Integration/Runtime Software

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

Test
Final Product
18
Final Product
X-10
WWVB
Keypad
LCD

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

Test
Test
Test
Test
Hardware Integration/Runtime Software
Test
Final Product
19
Future Work

• Expanded Capabilities including
• Infrared appliance control
• RF 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

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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, RD Books, Lawrence, Kansasm,
2000. "Product Documentation",
http//www.parallaxinc.com, Parallax Inc.,
Rocklin, CA, USA, 1999.
59
Design Review

• 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