Smart Devices

1
Smart Devices
(Home Automation via the Web)
May03-21 Team Members

• DESIGN CONSTRAINTS
• Constraints on the functionality of the devices
  that we can control
• Constraints on the sensory functions we will be
  able to perform
• Constraints on the number of devices on the
  network
• MILESTONES
• Technology selection (2 complete)
• Product design (12 complete)
• Product implementation (48 complete)
• Product testing (67 complete)
• Product revision after testing (77 complete)
• Product documentation (94 complete)
• Product demo (97 complete)
• Revise product documentation (100 complete)
• Percent of project done at each milestone

Mark Melville EE Mike Fernholz EE Brian
Thorp CprE Brendan Hickey CprE Scott Reeder CprE
Faculty Advisor Doug Jacobson Client Senior
Design Project Web Site http//seniord.ee.iastate
.edu/may0321
Abstract
The group will focus on the design of a smart
device. This includes researching the best
method of design and fabricating the design to
create a working device. The team considers a
smart device as any piece of electronic equipment
that is highly automated, or imitates human
intelligence (ex. smart missiles). The smart
device that the team chose to implement is a home
automation system using the X-10 protocol. The
team hopes to finish the year with a fully
functional home automation system.
End Product Description
The X-10 Home Automation System will simplify
several tasks for a home owner. With home access
via the web, maintaining and securing one's home
can be easily done from anywhere an internet
connection is available. X-10 allows a user to
turn off lights, close/open garage doors, and
even change the temperature of their home.
Introduction

• GENERAL BACKGROUND
• Design, implement, test and demonstrate one or
  more smart devices chosen by the group
• Chosen device is a home automation system using
  X-10 technology
• System includes a host computer to act as a
  secure web server and X-10 device controller
• Appliances connected to the X-10 network will be
  monitored and controlled via the host PC,
  website, and/or a web-capable cell phone
• TECHNICAL PROBLEM
• Connect several devices, lights, and appliances
  to X-10 receivers and monitor and control them
  via a PC in the home
• Extend this control to the internet via a secure
  web site which allows the homeowner to monitor
  and control the devices remotely
• OPERATING ENVIRONMENT
• Residential setting
• Indoors and/or outdoors
• Limited security (neighboring homes on the same
  electrical transformer may experience
  interference in their X-10 network)
• INTENDED USERS
• Anyone who wants to be able to control their home
  from any computer connected to the internet
• Anyone who wants extra security associated with
  home monitoring

Technical Approach

• Design the web page for the home automation
  system controls
• Setup the home network using X-10 protocol
• Configure X-10 controllers and sensors

What is X-10? X-10 is a communications "language"
that allows compatible products to talk to each
other via the existing 110V electrical wiring in
the home.
Controlling Web Site
Home Computer
Remote Computer
Cell Phone
X-10 Controller
Supports up to 256 devices
Key Internet Power Lines Directly connected
X-10 wall plugs
NOTE Arrows indicate direction of data flow
Lights
Sensors
Locks
X-10 Home Automation System
Testing Approach

• Testing the home automation system requires the
  use of the internet, the X-10
  controllers/receivers, and devices to control or
  monitor
• Before full system testing, the new software and
  new hardware will
• be tested individually to ensure their
  functionality
• Passing the system test includes full operation
  of all X-10 devices
• and the software shall allow the ability to
  quickly add new devices

Budget and Personnel Effort
Design Requirements

• DESIGN OBJECTIVES
• Create software to provide web based home
  automation
• Develop additional sensors and controls to
  monitor and control new devices on an X-10
  network
• FUNCTIONAL REQUIREMENTS
• Sensor and control devices shall use X-10
  protocol
• Software shall be configurable to add new devices
• Control and monitoring webpage shall be viewable
  from any web
• browser