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Voice control home appliance

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Nishant Singh

This document provides an overview of a voice control home appliance project. The project uses a voice module, microcontroller, and mobile phone to allow voice commands to control home appliances like fans and lights. The microcontroller receives voice commands via Bluetooth from the mobile phone and voice module. It then sends signals to relays connected to appliances to switch them on or off based on the command. The aim is to automatically control appliances in response to spoken commands.

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A PROJECT SYNOPSIS ON VOICE CONTROL HOME APPLIANCE
TABLE OF CONTENTS • INTRODUCTION • PLATFORM USED • AIM • BLOCK DIAGRAM • WORKING OF THE PROJECT • MICROCONTROLLER • COMPONENTS DESCRIPTION • REFERENCE
Introduction
INTRODUCTION: The nature’s most spectacular creation is human brain. The main feature of the human brain is its ability to sense the obstacles and respond according to them. The men always want to transplant his ability to the artificial things so that they can not only sense the problem but also respond according to that. In this competitive corporate world every organization wants to improve the efficiency as well as its productivity. To improve the efficiency of organization, automation is a preferred solution. There is “Voice control home appliance” project. This project is very useful for human. This system (Voice Control Home Appliance) senses human voice and takes decision according to command. In this project we used voice module, microcontroller and mobile phone for successful decision. There is used 89S52.
Platform used
Hardware requirements: 1) Voice module kit 2) Microcontroller 89S52 3) Transformer 4) LM7805 Regulator 5) Resistors 6) Capacitors 7) Diodes 8) Transistors 9) DC Fan 10) LED as a light 11) Mobile (must be android and 3G network)
AIM OF THE PROJECT The aim of the project is to design such system, which automatically switch ON or OFF the essential home appliances like fan, light etc. As soon as any person enters the room and speaks for sending the command, the light, fan or any other appliance as per our need is switched ON and is switched OFF.
Block diagram
MICROCOTROLL ER SECTION 89s52 Power Supply Voice module kit RELAY FAN and LIGHT
WORKING OF THE PROJECT
The first step in any embedded project is to design the proper hardware So firstly we have designed the +5v regulated dc supply for the microcontroller as controller gets on +5 v supply after that necessary connections of the microcontroller as connecting the crystal oscillator for clock and reset section for resetting the controller every time power gets on. Then after we have 32 I/O pins from which we can configure any pin as output or input. A person can control appliance using voice command. Firstly we record voice to operate system through voice command. When we operate system then give voice command. We are using the voice module kit for sensing the human voice. If human wants to switched ON the home appliance then he speaks and this voice recognized by voice module kit. Voice module is connected by mobile phone and mobile Bluetooth will be ON continuously. This voice command will be recognized to microcontroller with the help of Bluetooth. Microcontroller read the command and sends the signal to relay. FAN and light are connected by relay. If relay receives ON signal then FAN and light will be switched ON. If relay receives OFF signal then FAN and light will be switched OFF. Thus it performs the controlling of the appliance successfully.
MICROCONTROLLER AT89C51/89s52 Features • Compatible with MCS-51™ Products • 8K Bytes of In-System Re programmable Flash Memory • Endurance: 1,000 Write/Erase Cycles • Fully Static Operation: 0 Hz to 24 MHz • Three-level Program Memory Lock • 256 x 8-bit Internal RAM • 32 Programmable I/O Lines •Three 16-bit Timer/Counters • Eight Interrupt Sources • Programmable Serial Channel • Low-power Idle and Power-down Modes DESCRIPTION The AT89s52 is a low-power, high-performance CMOS 8-bit microcomputer 8Kbytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pin out.
The on-chip Flash allows the program memory to be reprogrammed in-system or by a Conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C52 is a powerful microcomputer that provides a highly flexible and cost-effective solution to many embedded control application. The AT89s52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full-duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89C52 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode tops the CPU while allowing the RAM; timer/counters, serial port, and interrupt system to continue functioning. The Power-down mode saves the RAM contents but Freezes the oscillator, disabling all other chip functions until the next hardware reset..
Voice control home appliance
Component description
Transformers A transformer is a device that transfers electrical energy from one circuit to another by magnetic coupling without requiring relative motion between its parts. It usually comprises two or more coupled windings, and, in most cases, a core to concentrate magnetic flux. A transformer operates from the application of an alternating voltage to one winding, which creates a time-varying magnetic flux in the core. This varying flux induces a voltage in the other windings. Varying the relative number of turns between primary and secondary windings determines the ratio of the input and output voltages, thus transforming the voltage by stepping it up or down between circuits. LED (LIGHT EMITTING DIODE) A junction diode, such as LED, can emit light or exhibit electro luminescence. Electro luminescence is obtained by injecting minority carriers into the region of a pn junction where radiative transition takes place. In radiative transition, there is a transition of electron from the conduction band to the valence band, which is made possibly by emission of a photon. Thus, emitted light comes from the hole electron recombination. What is required is that electrons should make a transition from higher energy level to lower energy level releasing photon of wavelength corresponding to the energy difference associated with this transition. In LED the supply of high-energy electron is provided by forward biasing the diode, thus injecting electrons into the n-region and holes into p- region.
ADVANTAGES OF LEDs: 1. Low operating voltage, current, and power consumption makes Leds compatible with electronic drive circuits. This also makes easier interfacing as compared to filament incandescent and electric discharge lamps. 2. The rugged, sealed packages developed for LEDs exhibit high resistance to mechanical shock and vibration and allow LEDs to be used in severe environmental conditions where other light sources would fail. 3. LED fabrication from solid-state materials ensures a longer operating lifetime, thereby improving overall reliability and lowering maintenance costs of the equipment in which they are installed. 4. The range of available LED colours-from red to orange, yellow, and green-provides the designer with added versatility. 5. LEDs have low inherent noise levels and also high immunity to externally generated noise. 6. Circuit response of LEDs is fast and stable, without surge currents or the prior “warm-up”, period required by filament light sources. 7. LEDs exhibit linearity of radiant power output with forward current over a wide range. LEDs have certain limitations such as: 1. Temperature dependence of radiant output power and wavelength. 2. Sensitivity to damages by over voltage or over current. 3. Theoretical overall efficiency is not achieved except in special cooled or pulsed conditions.
FAN Cooling fans and blowers provide cooling solutions to your system thermal problems. The need for forced-air cooling by using an AC or DC axial fan or blower should be determined at an early stage in the system design. It is important that the design plans for good airflow to heat-generating components and allows adequate space and power for the cooling fan or blower.
References 1. Mazedi, The 8051 Microcontroller and Embedded Systems, Prentice Hall, 1ST Edition 2. Embedded System using 8051“ (E-book) Lalit Kumar goel and Gaurav Sharma from Meerut 3. Kenneth J. Ayala, The 8051 Microcontroller, Penram International Publishing,1996, 2nd Edition 4. Some Websites :  www.alldatasheets.com  www.technowave.co.in  www.datasheetcatalog.com  www.electronicscircuits.com  www.scielectronics.com  www.parallax.com

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Voice control home appliance

  • 1. A PROJECT SYNOPSIS ON VOICE CONTROL HOME APPLIANCE
  • 2. TABLE OF CONTENTS • INTRODUCTION • PLATFORM USED • AIM • BLOCK DIAGRAM • WORKING OF THE PROJECT • MICROCONTROLLER • COMPONENTS DESCRIPTION • REFERENCE
  • 4. INTRODUCTION: The nature’s most spectacular creation is human brain. The main feature of the human brain is its ability to sense the obstacles and respond according to them. The men always want to transplant his ability to the artificial things so that they can not only sense the problem but also respond according to that. In this competitive corporate world every organization wants to improve the efficiency as well as its productivity. To improve the efficiency of organization, automation is a preferred solution. There is “Voice control home appliance” project. This project is very useful for human. This system (Voice Control Home Appliance) senses human voice and takes decision according to command. In this project we used voice module, microcontroller and mobile phone for successful decision. There is used 89S52.
  • 6. Hardware requirements: 1) Voice module kit 2) Microcontroller 89S52 3) Transformer 4) LM7805 Regulator 5) Resistors 6) Capacitors 7) Diodes 8) Transistors 9) DC Fan 10) LED as a light 11) Mobile (must be android and 3G network)
  • 7. AIM OF THE PROJECT The aim of the project is to design such system, which automatically switch ON or OFF the essential home appliances like fan, light etc. As soon as any person enters the room and speaks for sending the command, the light, fan or any other appliance as per our need is switched ON and is switched OFF.
  • 11. The first step in any embedded project is to design the proper hardware So firstly we have designed the +5v regulated dc supply for the microcontroller as controller gets on +5 v supply after that necessary connections of the microcontroller as connecting the crystal oscillator for clock and reset section for resetting the controller every time power gets on. Then after we have 32 I/O pins from which we can configure any pin as output or input. A person can control appliance using voice command. Firstly we record voice to operate system through voice command. When we operate system then give voice command. We are using the voice module kit for sensing the human voice. If human wants to switched ON the home appliance then he speaks and this voice recognized by voice module kit. Voice module is connected by mobile phone and mobile Bluetooth will be ON continuously. This voice command will be recognized to microcontroller with the help of Bluetooth. Microcontroller read the command and sends the signal to relay. FAN and light are connected by relay. If relay receives ON signal then FAN and light will be switched ON. If relay receives OFF signal then FAN and light will be switched OFF. Thus it performs the controlling of the appliance successfully.
  • 12. MICROCONTROLLER AT89C51/89s52 Features • Compatible with MCS-51™ Products • 8K Bytes of In-System Re programmable Flash Memory • Endurance: 1,000 Write/Erase Cycles • Fully Static Operation: 0 Hz to 24 MHz • Three-level Program Memory Lock • 256 x 8-bit Internal RAM • 32 Programmable I/O Lines •Three 16-bit Timer/Counters • Eight Interrupt Sources • Programmable Serial Channel • Low-power Idle and Power-down Modes DESCRIPTION The AT89s52 is a low-power, high-performance CMOS 8-bit microcomputer 8Kbytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pin out.
  • 13. The on-chip Flash allows the program memory to be reprogrammed in-system or by a Conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C52 is a powerful microcomputer that provides a highly flexible and cost-effective solution to many embedded control application. The AT89s52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full-duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89C52 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode tops the CPU while allowing the RAM; timer/counters, serial port, and interrupt system to continue functioning. The Power-down mode saves the RAM contents but Freezes the oscillator, disabling all other chip functions until the next hardware reset..
  • 16. Transformers A transformer is a device that transfers electrical energy from one circuit to another by magnetic coupling without requiring relative motion between its parts. It usually comprises two or more coupled windings, and, in most cases, a core to concentrate magnetic flux. A transformer operates from the application of an alternating voltage to one winding, which creates a time-varying magnetic flux in the core. This varying flux induces a voltage in the other windings. Varying the relative number of turns between primary and secondary windings determines the ratio of the input and output voltages, thus transforming the voltage by stepping it up or down between circuits. LED (LIGHT EMITTING DIODE) A junction diode, such as LED, can emit light or exhibit electro luminescence. Electro luminescence is obtained by injecting minority carriers into the region of a pn junction where radiative transition takes place. In radiative transition, there is a transition of electron from the conduction band to the valence band, which is made possibly by emission of a photon. Thus, emitted light comes from the hole electron recombination. What is required is that electrons should make a transition from higher energy level to lower energy level releasing photon of wavelength corresponding to the energy difference associated with this transition. In LED the supply of high-energy electron is provided by forward biasing the diode, thus injecting electrons into the n-region and holes into p- region.
  • 17. ADVANTAGES OF LEDs: 1. Low operating voltage, current, and power consumption makes Leds compatible with electronic drive circuits. This also makes easier interfacing as compared to filament incandescent and electric discharge lamps. 2. The rugged, sealed packages developed for LEDs exhibit high resistance to mechanical shock and vibration and allow LEDs to be used in severe environmental conditions where other light sources would fail. 3. LED fabrication from solid-state materials ensures a longer operating lifetime, thereby improving overall reliability and lowering maintenance costs of the equipment in which they are installed. 4. The range of available LED colours-from red to orange, yellow, and green-provides the designer with added versatility. 5. LEDs have low inherent noise levels and also high immunity to externally generated noise. 6. Circuit response of LEDs is fast and stable, without surge currents or the prior “warm-up”, period required by filament light sources. 7. LEDs exhibit linearity of radiant power output with forward current over a wide range. LEDs have certain limitations such as: 1. Temperature dependence of radiant output power and wavelength. 2. Sensitivity to damages by over voltage or over current. 3. Theoretical overall efficiency is not achieved except in special cooled or pulsed conditions.
  • 18. FAN Cooling fans and blowers provide cooling solutions to your system thermal problems. The need for forced-air cooling by using an AC or DC axial fan or blower should be determined at an early stage in the system design. It is important that the design plans for good airflow to heat-generating components and allows adequate space and power for the cooling fan or blower.
  • 19. References 1. Mazedi, The 8051 Microcontroller and Embedded Systems, Prentice Hall, 1ST Edition 2. Embedded System using 8051“ (E-book) Lalit Kumar goel and Gaurav Sharma from Meerut 3. Kenneth J. Ayala, The 8051 Microcontroller, Penram International Publishing,1996, 2nd Edition 4. Some Websites :  www.alldatasheets.com  www.technowave.co.in  www.datasheetcatalog.com  www.electronicscircuits.com  www.scielectronics.com  www.parallax.com