Project

Power Meter billing Plus Load Control Using GSM

January 7, 2016

4769

Introduction

[nextpage title=”Introduction” ]The project consists of a Power meter reader system with gsm (sms sender device) interface. The energy department needs to send its employees every month in order to take energy meter readings. This is an expensive as well as a time consuming system. Our project determines a more efficient way to get energy meter readings.
Both electricity company as well as user get their energy meter readings via sms every month. User may also control the system using sms.
The energy meter is interfaced to a microcontroller of 8051 family. The energy meter readings are also read by the micontroller and displayed on an LCD Screen, this data is also sent via sms through a gsm modem interfaced to the microcontroller.
The Gsm modem also has sms receiving capability. On receiving particular user request it sends required signal to the microcontroller in order to do counting for required operation. It can switch loads On/Off as desired.[/nextpage]

Hardware and Software Specification

[nextpage title=”Hardware and Software Specification” ]

Hardware Specifications:

8051 series Microcontroller
Relay
Diodes
Voltage Regulator
Relay Driver IC
Transformer
Energy Meter
Gsm Modem
Lamps

Software Specifications:

Keil µVision IDE
MC Programming Language: Embedded C

Relay Driver IC:

A Relay driver IC is an electro-magnetic switch that will be used whenever we want to use a low voltage circuit to switch a light bulb ON and OFF which is connected to 220V mains supply. The required current to run the relay coil is more than can be supplied by various integrated circuits like Op-Amp, etc.Relays have unique properties and are replaced with solid state switches that are strong than solid-state devices. High current capacities, capability to stand ESD and drive circuit isolation are the unique properties of Relays. There are various ways to drive relays.Some of the Relay Driver ICs are as below.