A New Prepaid Energy Meter using AT89S52 microcontroller

Abstract

A plan of Electricity charging system called PREPAID ENERGY METER WITH TARIFF INDICATOR can encourage in enhanced trade stream administration out energy utilities and can diminishes issue connected with charging buyer living in confined range and decreases organization of labor for taking meter readings. Each shopper can purchase a memory card (is only an EEPROM IC) with a secret word put away inside it utilizing a MC program. The memory card is accessible at different reaches (i.e. Rs 50, Rs 100, Rs 200 etc).In our venture we have given the name for memory card as savvy card. At the point when the purchaser embed a brilliant card into the card reader which is associated in prepaid energy meter with levy pointer unit. The card reader will read the put away data and erase the data from the EEPROM IC (smart card) utilizing the MC program. So that the brilliant card can't be reused by others. Assume if a buyer purchases a card for Rs.50/ - so on. He/She can embed this sum through the card reader so that prepaid vitality meter with duty pointer unit will be actuated. As indicated by the power utilization the sum will be lessened. At the point when the sum is over, the transfers will naturally close down the entire system. In this paper, we additionally have an arrangement to give a caution sound to buyer before the entire sum is decreased.