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Smart Home Automation System Design Project

Explore the design and implementation of a compact and reliable home automation system featuring wireless communication and Android-based control for reducing energy consumption and costs. Includes detailed hardware and software specifications, subsystems for lighting, HVAC, and television control, as well as Google App Engine integration for efficient data management.

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Smart Home Automation System Design Project

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  1. 2012: A Home Odyssey Senior Design Group #5 (Summer 2012) Members: Kyle D‘Arcangelis John Edison Heston Posner Jimmy Wong

  2. Overview • Home Automation System • Wireless Communication between Subsystems • Android-based Application Control • Lighting, HVAC, Television

  3. Project Goals and Objectives • Reduce energy consumption • Reduce cost • Compact • Reliable • Easy to use

  4. Overall Project Block Diagram

  5. Hardware Specifications and Requirements • TI MSP430G2553 Value Line MCU • TI CC1100 RF Transceiver • TI LM3S8962 ARM Cortex-M3 MCU • 3.3V for all digital logic circuitry • 925 MHz wireless communication for up to 100m • 2 layer printed circuit boards

  6. Microcontroller Comparison ATMEL ATmega 328P-PU MSP430G2553

  7. TI MSP 430 G2553 • Compatibility • Low Cost • Low Energy Comsumption • Dual Inline Packaging (DIP) • PWM pins for IR Remote

  8. Software Specifications and Requirements • Android OS 2.2 SDK • Touch Interface • Google App Engine 1.6.3 SDK • High replication data storage

  9. Lighting Subsystem • MSP430G2553 Microcontroller • TI CC1100 RF Module • Lutron Maestro Duo MAW-600H Light Dimmer

  10. Lighting Subsystem

  11. Lighting Subsystem

  12. HVAC Subsystem • MSP430G2553 Microcontroller • TI CC1100 RF Module • LED Indicators

  13. HVAC Subsystem

  14. HVAC Subsystem

  15. Television Subsystem • Infrared Remote Control Transmitter • Receives commands from the Stellaris base station • Tasks • Power on/off • Channel up/down • Volume up/down • Channel Number Selection

  16. Television Subsystem Components • TI MSP430G2553 • TI CC1100 RF Module • IR LED

  17. Television Subsystem

  18. Television Subsystem

  19. Main Controller • TI MSP430G2553 Value Line MCU • TI CC1100 RF Transceiver • TI LM3S8962 ARM Cortex-M3 MCU • RJ45- Ethernet

  20. Main Controller

  21. Main Controller • Lightweight IP • Internet protocol implementation on the Stellaris Sample API Format • Dynamic DNS • Booster Stack Lite • Stellaris and MSP430 wireless protocol

  22. Google App Engine vs Traditional Server (AMP Stack)

  23. Why we chose Google App Engine • No need for relationships between tables • No join operations will be needed for the queries of our application • Simplicity of uploading new versions of the server application via an Eclipse plugin • Central administrator console • 10 server applications allowed for a single Google account (Allows for plenty of testing) • Enough resources to allow for a fully operational application

  24. Overall Project Block Diagram

  25. Software Design: Database Entities

  26. Software Design: User and Admin Privileges

  27. UI Design: Main Menu • Utilizes the "simple_list_item1" menu layout • When a menu item is selected, the corresponding class, containing the .xml layout load and the functionalities, will run

  28. UI Design: Input Provider Interface • Allows the user to view the current provider and enter in a new provider • Current provider textview displays the company name and the residential rates • To enter in a new provider, the user would have to enter the name and the rates

  29. UI Design: Input Wattages Interface • Input wattages for specific devices controlled by a particular subsystem • Android Spinner objects will be used to select between different fixtures (For Dimmer and HVAC) • Textfields used for wattage input

  30. UI Design: Current Wattages Interface • Textview used to display the wattages of the selected fixture • Spinners will be used to select a specific fixture • It will always display the TV wattage (Due to only 1 television set will be controlled)

  31. UI Design: Calculate Usage Interface • Allows the user to calculate the monetary cost of the electricity usage according to a specific date or month • Utilizes a DatePicker object to choose thedate • Utilizes a Spinner object to choose the month

  32. Subsystem Control • Tabular interface for each subsystem • Status page and voice recognition reference page available through the option button • Each tab remains its integrity until the user exits the control interface • Each tab contains a voice recognition activation button

  33. UI Design: Dimmer Control Interface • Allows the user to control the brightness level of lighting fixtures • Checkboxes are used to selectlighting fixtures • SeekBar object used to choose the brightness level • Button used to set light level

  34. UI Design: HVAC Control Interface • Allows the user to control the different functions of the HVAC subsystem • Fan has the following options: ON and AUTO • System has the following options: COOLING, HEATING, OFF

  35. UI Design: TV Control Interface • Allows the user to utilize typical universal remote control functions.

  36. Android.Speech • SpeechRecognizer • Class that converts speech to text • RESULTS_RECOGNITION • Array of possible candidate sentences • CONFIDENCE_SCORES • Weighted value from -1 to 1 rating the accuracy • Bag of words • “Dim the kitchen lights to fifty percent” • ‘lights’ + ‘fifty’ + ‘kitchen’ + ‘percent’

  37. Admin Content

  38. Questions / Comments?

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