02-03-2013, 02:59 PM
VOICE OPERATED MODERN RESTAURANT
VOICE OPERATED MODERN.doc (Size: 58.5 KB / Downloads: 24)
ABSTRACT:
DESCRIPTION:
RF transmitters are electronic devices that create continuously varying electric current, encode sine waves, and broadcast radio waves. RF transmitters use oscillators to create sine waves, the simplest and smoothest form of continuously varying waves, which contain information such as audio and video. Modulators encode these sine waves and antennas broadcast them as radio signals. There are several ways to encode or modulate this information, including amplitude modulation (AM) and frequency modulation (FM). Radio techniques limit localized interference and noise.
In this project the microcontroller which forms the heart of the project, plays an important role in establishing communication between transmitter and receiver. The microcontroller communicates with RF technology and sends the data from RF transmitter to receiver section.
This project consists of two sections one is transmitter section and other is receiver section. Both sections consist of RF technology. From the first section menu should taken and this information is forwarded to the receiver section via RF wireless communication. According to that order which is transmitted to the receiver we will get a voice announcement through speaker. Here LCD is used to display the data on LCD.
This project uses regulated 5V, 500MA power supply, 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac output of secondary of 230/12V step down transformer.
AIM:
The main aim of the project is to design a system which can get orders from distant area through voice alert.
PURPOSE:
The purpose of the project is to implement a system based on a voice in restaurants to take the menu order and to transmit this information to the receiver section.