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Touch Screen Based Home Automation System

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This ppt presentation is to develop a home automation system with a touch screen based control panel based on microcontroller

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Touch Screen Based Home Automation System

  1. 1. Touch Screen based Home Automation System
  2. 2. http://www.edgefxkits.com/ Introduction:  Home automation can be extended to operate electrical appliances like HVAC ( heating, air-conditioning, and ventilation) security system for gates and doors.  Thus, it provides a convenient, comfort and energy efficient centralized controlling of all the primary electrical system at home.  Home automation has become even simpler with touch screen technology. Owners familiar with the icon system appreciate Touch Screen Based Home Automation Systems is user friendly. Touch Screen based Home Automation System
  3. 3. http://www.edgefxkits.com/ Touchscreen:  There are two types of touchscreen currently available in the market.  We are using a capacitive touchscreen for our project. Capacitive touchscreen relays on electrical properties of the human body to detect where and when the user touches.  Thus, it has an advantage that is capacitive displays controlled with very light finger touches. Touch Screen based Home Automation System • capacitive touchscreen • resistive touchscreen.
  4. 4. http://www.edgefxkits.com/  Use them with gloves or mechanical stylus.  These touchscreen have been used widely for cell phone industry.  A capacitive touchscreen has an insulator such as glass that is coated with indium tin oxide. Since a human body also acts as an electrical conductance, touching the screen results in a distortion of screen’s electrostatic field, measured as a change in capacitance. Touch Screen based Home Automation System
  5. 5. http://www.edgefxkits.com/ System operation:  Our system has both hardware and software component. As such data collection is done in hardware and processing of data, and subsequent controlling are done in the software and output circuit which are connected to electrical appliances. Touch Screen based Home Automation System
  6. 6. http://www.edgefxkits.com/ Block Diagram: Touch Screen based Home Automation System
  7. 7. http://www.edgefxkits.com/ Touch Screen based Home Automation System
  8. 8. http://www.edgefxkits.com/ Hardware Requirements:  Power Supply Block  Microcontroller At89s52/At89c51  Touch Panel  Rf Transmitter & Rf Receiver (Ht12e/Ht12d)  Opto-Isolator  Triac  Regulators  Crystal Oscillator  Diodes  Resistors  Capacitors Touch Screen based Home Automation System
  9. 9. http://www.edgefxkits.com/ Software Requirements:  Keil compiler  Languages: Embedded C or Assembly Touch Screen based Home Automation System
  10. 10. http://www.edgefxkits.com/ Power Supply: Touch Screen based Home Automation System
  11. 11. http://www.edgefxkits.com/ RF Transmitter and Receiver:  RF modules are divided into three groups, RF transmitter module, RF receiver module and RF transceiver module  433MHz ASK transmitter and receiver is used for the remote control. Touch Screen based Home Automation System
  12. 12. http://www.edgefxkits.com/ Opto-isolator:  Opto-coupler MOC3061/63, A LED SCR Type Combination.  Opto Coupler Is A Six Pin Ic.  Additionally While Using This Ic With Microcontroller, One Led Can Be Connected In Series With Ic Resulted In Indicate. When High Power Is Given By The Micro Controller Such That We Can Know That The Current Is Flowing In Internal LED Of The Opto- IC.  When Logic High Is Given Current Flows Through Led From Pin 1 To 2. So In This Process LED Light Falls On SCR Causing 6 And 4 To Close Only At The Zero Cross Of The Supply Voltage. Touch Screen based Home Automation System
  13. 13. http://www.edgefxkits.com/ TRIAC:  Triode for Alternating Current (TRIAC), is a generalized trade name for an electronic component which can conduct current in either direction when it is triggered (turned on). It is formally called a bidirectional triode thyristor or bilateral triode thyristor. Touch Screen based Home Automation System
  14. 14. http://www.edgefxkits.com/ Conclusion:  Further the project can be enhanced by using GSM modem interfaced to the control unit.  Using GSM modem, the user can control home appliances by sending an SMS.  Advantage of using this technology is that there is not range limitation when compared to RF technology. Touch Screen based Home Automation System
  15. 15. http://www.edgefxkits.com/

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