GSM BASED CORPORATE UPS BATTERY MANAGEMENT SYSTEM

VATHSALYA INSTITUTE OF SCIENCE & TECHNOLOGY

BY CH.BHARGAVI GUPTA(08e71A0414) D.SWETHA(08E71A0421) U.MANJULA(08E71A0455) G.RAMYA KRISHNA(08E71A0456)

CONTENTSMOTIVATIONWHY GSM ????BLOCK DIAGRAMHARDWARE COMPONENTS & SOFTWARE USEDPOWER SUPPLY & RELAYAT89C51 MICRO CONTROLLERLCD & CONTROLLER INTERFACINGMAX 232 , CONTROLLER & DB9 PIN INTERFACINGAPPLICATIONSFEATURESCONCLUSIONQUERIESTHANK YOU

MOTIVATIONThe purpose of this project is to provide a

secondary power supply, when main power supply is not there, so that services of that corporate should not stopped.

In this project, we are using two transformers. One is as mains supply to corporate and second transformer as secondary (UPS) supply.

The secondary (UPS) supply is controlled using a GSM modem.

WHY GSM

The drawbacks of the following are overcome by GSM :

IRRFBLUETOOTHZIGBEE

GSM MODEM

BLOCK DIAGRAM

HARD WARE COMPONENTSPower SupplyMicro ControllerGSM ModemRelayLED IndicatorLCDUPS batteries

SOFT WARE USEDEmbedded C.Keil IDE(Integrated Development Environment)

POWER SUPPLY & RELAY

AT89C51 MICRO CONTROLLER

PINS USED• RESET(9)•RXD(10)•TXD(11)•XTAL2(18)•XTAL1(19)•Vss(20)•PORT_0(39-32)•Vcc(40)

LCD AND CONTROLLER INTERFACING

MAX 232 , CONTROLLER & DB9 PIN INTERFACING

Embedded Controller

RXD

TXD

TXD

RXD 2

3

5

GND

MAX 232

PROJECT KIT

FEATURESOperates with single 5V power supply Operates up to 120kbits/secTwo drivers and two receivers+/-30v Input levelsLow supply current : 8mA Typical Designed to be Inter changeable with maxim

MAX232.APPLICATIONSBattery-Powered SystemsTerminalsModemsComputers

CONCLUSION

With this project we can avoid the disturbance due to main supply. If main supply is absent so we can use the other power supply, by giving the response to microcontroller.