literature review for prepaid energy meter using gsm

any one have project report on prepaid energy meter
!!!

The method of Electricity billing concept is known as “PREPAID ENERGY METER WITH TARIFF INDICATOR” which is able to help to assist to enhance the cash stream organization within power uses and is able to decrease the issues with respect to billing user residing under separate place and decreases the arrangement of human power to have the meter readings.

Each use is able to recharge RFID label credited and recharge the meter on several limits like Rs 50, Rs 100, Rs 200 and so on. In this project, RFID tag card smart card is portrayed. User is able to view its account under LCD connected by the module and make the next recharge.