GSM BASED PREPAID ENERGY METER
Keywords:Prepaid, Recharge, Microcontroller, LCD, Relay, GSM
This paper presents the design and modelling of GSM-based Energy Recharge System for prepaid metering.
The present system of energy billing in India is based on post-paid, contains lots of error and also time and labour
consuming. Errors get introduced at every stage of energy billing like errors with electro-mechanical meters, human
errors, processing errors. The aim of the developed system is to minimize the error by introducing a new system of
Prepaid Energy Metering using GSM. The GSM is used to provide the communication between user and provider. This
will enable the user to recharge their electricity account from home. The system is based on LPC2148
microcontroller.Hardware system of LPC2148 includes the necessary devices within only one MCU such as USB, ADC,
DAC, Timer/Counter, PWM UART etc. The results obtained shows good system performance and error free.