8/2/2019 Prepaid Energy Meter Using Gsm Mobile

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PREPAID ELECTRICITY BILLING SYSTEM

USING GSM

Abstract

The short message system (SMS) of a standard mobile phone can be used for

much more than just exchanging cryptic message. This application finds a humble

mobile working for controlling external equipments. The SMS service provides by the

service providers are comparatively low cost. Hence the system is highly efficient and

low-cost.

Mobile phones have become a widespread means of communication. It becomes

a part of everyday life with ever more people enjoying the service and extra freedom

they provide. It works on the basis of Global System for Mobile Communication (GSM).

A subscriber from any systems can access telecommunication services by using a

Subscriber Identify Module (SIM) card in a handset suitable for the network on the

visited system The Short Message Service allows text messages to be sent and

received to and from mobile telephones. The text can comprise words or numbers or an

alphanumeric combination. Because Simple person - to - person messaging is such animportant component of total SMS traffic volumes, anything that simplifies message

generation as well as extended utility of the SMS being sent is an important enabler of

Short Message Service.

We will connect hardware kit i.e. GSM modem and microcontroller to the energy

meter. The main aim of this project is whenever u r recharging with some amount say

example Rs.100/- by doing SMS to the MODEM, the bulb gets automatically ON until

your recharge gets zero. After getting your balance zero your device gets automaticallyswitched OFF and you will get a message from the MODEM that you have to recharge

your mobile and the process takes place continuously.

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Block diagram:

Hardware Used:

AT command supporting GSM mobile phone. 89c51 Microcontroller

Max 232 IC. DB9 Connector GSM Phone

SOFTWARE USED:

1. Keil u-Vision

Keil Software is used provide you with software development tools for 8051 based

microcontrollers. With the Keil tools, you can generate embedded applications for

virtually every 8051 derivative. The supported microcontrollers are listed in the -vision.

2. PRO51 Programmer Software

Energy

meter8051

microcontroller

GSMmodem