High Frequency Modulation Technique Based EC Recharge In Electricity Using Zigbee

Abstract

This project is developed for the users to recharge electricity usage using zigbee in a prepaid manner. It consists of Microcontroller unit, key pad, LCD display, Zigbee transducer etc. There are two zigbee transducers used in this project. One is connected with the microcontroller unit(User) and the other is connected with the server(PC). The user can add the validity of their account by giving a secret code through key pad. The microcontroller receives the data and sends to the server through zigbee transducer. The zigbee transducer connected with the server receives the data and sends to the server through serial port. The server analyses the data and sends corresponding amount to the zigbee transducer through serial port. The zigbee transducer transmits the amount. The zigbee transducer connected with the microcontroller(User)receives the data and sends the data to the microcontroller. The microcontroller controls the load accordingly. The user can use the electricity upto certain limit. The user can also watch the status of the usage level in the LCD display. If the validity is over, the electricity will be cut automatically. Again if recharged, the user can use the electricity. The microcontroller program is written in assembly language. In the PC, the design and port programs are written in Visual Basic.

Existing System

Proposed System

Architecture

TRANSMITTER SECTION

RECEIVER SECTION