Home Automation Console

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Home Automation Console

• Team HAC
• Luci Puryear
• Nidhi Singh
• Carlos Vasquez
• Faculty Advisor Dr. Mitch Thornton
• Sponsors Extreme Networks

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Overview

• Project Description
• Home Automation Console
• Considerations
• Technologies
• Software/Hardware
• Accomplishments/Problems
• Test Plan
• Timeline

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Home Automation

• Home automation is a growing field
• Many types of automation technologies exist
• Most of these technologies are independent of
  each other

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Home Automation Console

• Integration of different home
• automation technologies
• Easy to access and use
• Ethernet capable
• Consumer Advantages

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How the Console Works
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Considerations

• Environmental
• Economic
• Human Factors
• Safety
• Political

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Technologies

• X-10
• Infrared
• Ethernet

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What is x10?
Power line carrier (PLC) protocol Allows
compatible products to communicate via existing
110V wiring
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Why x10?

• Inexpensive 3 Modules/Controller for 50
• Universally available
• Flexible modules exist for a large variety of
  devices
• Easy to install No additional wiring

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Alternative CEBus
Consumer Electronics Bus

• Noise resistant
• Higher collision resolution
• Faster data transmission
• Very expensive
• Limited devices

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How x10 works?

• Transmitter Receiver

Voltage signal
110 V
16.66ms
60 Hz powerline
1 ms X-10 information window
Zero crossing points
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X10 Transmission
3 zero crossing points for 3 phases of AC
poweline
Max. data rate60 bits/s
Binary 1 1 ms burst of 120 kHz at zero
crossing point
Binary 0 Absence of burst at zero crossing
point
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Basic X10 Message
Function code or unit code
Function bit
Consists of 13 bits
Error detection Each data bit is actually sent
twice, in complementary form, on alternate half
cycles
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How are devices controlled using x10?

• Plug appliance into X10 receiver module
• Plug the module into electrical outlet.
• Set the house and unit codes..
• Plug controller (transmitter) into any other
  electrical outlet in your house
• Set the proper house code.

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Infrared Technology

• Console
• Device
• with remote

Infrared signals
Infrared transmitter
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Ethernet Program

• Allow internet remote access to appliances
• Client/Server model
• Server supports HTML documents
• C/C and TCP/IP Protocol

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Command Control Program (CCP)

• Home Automation Console
• X-10 Controller/
• IR Transmitter
• X-10 modules/appliances

commands
signals
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Hardware needed for Implementation

• Tuxscreen
• X-10 modules and controller
• Ethernet card
• Infrared Transmitter

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Tuxscreen

• Aka Shannon/Philips IS2630 Screen Phone

• Intel SA 1100 StrongARM CPU 133Mhz
• 16MB DRAM
• Sharp Color Touchscreen
• Infrared Keyboard

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Tuxscreen

• Why use the Tuxscreen?
• Advantages of having one device dedicated to home
  automation
• Memory Expandable
• Inexpensive 99
• Mobile

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Linux vs. Inferno

• Inferno
• Does not support needed applications like a
  compiler
• Difficult to use
• small size
• Linux
• Allows Tuxscreen to run needed program
• Easy to use
• Popular
• small and powerful

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X-10 and Ethernet Hardware

• X-10 modules and controller
• TW-523 Controller Two Way Interface Module
• 3-Pin Grounded Appliance Module
• Lamp Module
• Ethernet card
• Trendnet TE100-PC16 Fast Ethernet Card

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Infrared Transmitter

• Separate from Tuxscreen and connects to serial
  port
• Allows console to control devices already
  equipped with IR
• Components Used
• Holtek HT-12E Encoder IC
• Infrared Diode T1 ¾(NM)

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Cost of Prototype

• Tuxscreen - 99(provided)
• X-10 modules(provided)
• Light modules(2) - 12.95
• Appliance modules(1) - 12.99
• X-10 controller 23.95(provided)
• Ethernet Card - 15.00
• IR transmitter components - 20.00
• Total cost 190.00

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Testing Plan Phase I

• Basic x-10 commands will be sent to x-10 modules
  using console. Observations will be recorded
  using multimeter and oscilloscope
• x-10 commands will be sent to modules with an
  extra appliance plugged into house wiring to
  ensure that this device not harmed
• All common appliances will be plugged in all
  x-10 functions and x-10 modules will be tested
  for functionality

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Testing Plan Phase II

• Goal Gauge console's user friendliness and
  functionality
• Tests will be performed by three users of varying
  computer literacy
• Users will be provided a checklist of tasks
• Users will judge clarity and understandability
• Modifications will be made based on user response
  

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Accomplishments

• Research
• Hardware Received
• Website created
• Ethernet Program written
• Command Control Program
• written
• Infrared Transmitter
• designed

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Difficulties

• Tuxscreen
• Command
• Control
• Program

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Tuxscreen

• Initially serial communication could not be
  established with the Tuxscreen
• Original operating system could not be backed up
• Bootloader could not be uploaded

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Tuxscreen

• Attempted to upload bootloader in several ways
• Unlocked Flash Memory
• Tried contacting people
• Tuxscreen, Message Board, Individuals

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Command Control Program

• Object oriented C programming
• Accepts command inputs from users and sends
  appropriate signals to the serial port
• Confirmed using an oscilloscope that program
  sends correct binary data to serial port, but
  controller does not perform the command

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CCP Pseudocode

• Example of turn on module1 command
• lampMenu( int M) //lamp
  menu
• if(A1)
• if(status0) //send lamp on command
• module.setOn(M)
• else
• cout ltlt already on ltlt endl
• else if(A2)
• if(status1) //send lamp off command
• module.setOff(M)
• cout ltlt already off ltlt endl

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References
Sources for images used in the slides

• http//www.x10.com
• http//www.x10.org
• http//www.smarthome.com

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Questions