iHome Automation System

1
iHome Automation System

• Home Automation System
• Team Million Dollar Contingency Regiment
• Adam Doehling
• Chris Manning
• Ryan Patterson

2
Updated Overview

• The goal of this project is to develop a home
  automation system that gives the user complete
  control over all remotely controllable aspects of
  his or her home.
• The automation system will have the ability to be
  controlled from a central host PC, the Internet,
  and also remotely accessed via a Pocket PC with a
  Windows Mobile based application.
• We do not have any tangible test results to
  present in this presentation, but we will
  demonstrate some software we have developed.

3
iHome Automation Overall Flowchart (Review)
4
Hardware Description-Base Station
iHome Control Center
USB
Base Station
RS-485
Wireless
L1 Nodes
Base Station Block Diagram
5
Base

• Attaches to PC, interfaces between software and
  hardware.

6
Hardware Description-Level 1 Nodes

• Controls L0 nodes, replaces light switch, has
  simple user interface.

Level 1 Node
L1 Node
RS-485 Bus
Quadrature Encoders
RS-485 Transceiver
MCU TI MSP430F149
8-bit Parallel Bus
SPI Bus
PWM
1 Mb Flash
Touch Sensors
DigitalPotentiometer
LCD Display
7
L1 MCU
8
L1 comm
9
L1 sensor
10
L1 touch
11
USB programmer
12
Hardware Description-Level 0 Nodes

• Basic cells, controlled by level 1 nodes.
  Mainly On/Off/Sensor functionality. Since L0
  nodes are so varying in what kinds of functions
  they carry out, it is impossible to block diagram
  every variety, since they all contain different
  hardware. Generically, however, they look like
  this

Level 0 Block Diagram
Level 1 Node
See next slide for comprehensive list of
interface connections
Sensor/Switch
Level 0 Node
13
L1 Device Interface

• All L0 Nodes connect to the system via L1 nodes
  using the following L1 ports

• Eight TTL Output Ports (5V)
• Four TTL Input Ports (5V)
• Three Analog Input Ports (3.3V)
• Four PWM Output Port (5V, resolution of 33,300)
• 127 Channel I2C Port (3.6V)
• Two SPI Ports (3.6V, 1mbps)
• One digital quadrature encoder input (5V)

14
Hardware Description-Level 2 Nodes

• Controls audio communications, no user interface

15
L2 mcu
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L2 ether
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L2 audio
18
L2 power
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Hardware Description-Level 3 Nodes

• Level 3 node portion of the project has been
  cancelled due to unexpected budget cuts.
• Level 3 nodes were intended for streaming video
  between the central server, TVs, and video
  cameras. This would require expensive hardware
  that is now not able to be purchased or developed.

20
Software Overview Recall

• There are three main software applications in
  this project The iHome Control Center, the
  Remote Control Center, and the Webserver

Webserver
Remote Control Center
iHome Control Center
21
Software iHome Control Center Block Diagram
Output (Webserver DLL)
User Input (via GUI)
Command
Web Server
Timed Event
Basestation
(From Web Server)
22
Software Web Server Block Diagram
iHome Control Center
Output (via Windows Messaging)
Input (from iHome CC)
Information Request
Command
Command Confirmation
Web Server
(via TCP/IP Wireless comm)
Remote Control Center
Information (nodes, rooms)
(from remote CC)
Command
(from web user)
(via http comm)
Command
Web User
Timed Command
23
Software Remote Control Center Block Diagram
Output (via TCP/IP wireless comm.)
User Input (via GUI)
Remote Control Center
Command
Web Server
GUI
24
Or, Generally
Nodes
iHome Control Center
Web Server
Remote Control Center
Web User
25
Progress made this semester -What has been done?

• Hardware
• Design of L0 device for dimming incandescent
  light bulbs
• Partial Design for wireless USB base station
• USB L0 device programmer completed
• Firmware/Software
• Ability to do firmware upgrades of L1 Nodes
  remotely implemented
• GUI of iHome Control Center
• Webserver interface with iHome control center
• User interface for webserver
• GUI for Pocket PC application
• Miscellaneous
• Construction of roomish structure started

26
Updated Objectives for This Semester -What needs
to be done?

• Hardware
• Design a wired wireless USB Base Station
• L0 nodes for physical control of systems
• Completion of construction of higher-order nodes
• Firmware/Software
• Completion of GUI and code for both the central
  server (iHome Control Center) and the remote user
  (Pocket PC) interface
• Completion of firmware for the L1 L2 nodes
• Completion of all firmware for the Base Station
• Webserver for both remote access and L2 node
  communication

27
Updated Division of Labor -Who is doing what?

• Adam- completion of web server, and L0 node
  completion, and completion of L2 node design /
  programming.
• Chris- user interface for Pocket PC, completion
  of various peripheral hardware.
• Ryan- completion of the iHome Control Center, and
  completion of L0 nodes, L1 nodes, and USB Base
  Station.

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Updated Schedule -When will everything be done?

• Milestone 1-
• Schematics for Base station, wireless adapters
  for L1 nodes, and light dimmer L0 node completed
  PCB layout underway.
• Remote firmware update ability implemented.
• Communications handler for iHome Control Center
  completed
• Remote Control Center basically functional
• TCP/IP communications for L2 nodes completed
• Framing of roomish structure completed

29
Updated Schedule -When will everything be done?

• Milestone 2-
• All circuit boards assembled and tested
• Device pairing finished and scheduler underway
  for iHome Control Center
• Roomish structure sheetrocked, mudded, and
  texturized
• Remote Control Center completed
• L2 Nodes completed
• L1 Nodes installed in roomish structure

30
Updated Schedule -When will everything be done?

• Expo-
• Webserver finished
• L1 Nodes successfully controlling lights and
  outlets
• Roomish structure painted
• Users Manual completed
• All software completed
• Adam, Ryan and Chris software communicating
  seamlessly with one another

31
Demo!
32
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