Theft detection based GSM prepaid electricity system

As a part of measure to make electricity accessible to every Pakistani, to overcome the problem of overbilling, meter tempering and to ensure a cost effective operation, we have introduced the Prepaid Electricity System. The user receives message on their mobile phones about the units they purchased via GSM technology. Mikro C PRO for PIC software is used for controller programming and Proteus is used for simulation purposes. The data was sent through the serial ports to the user energy meter. The PIC microcontroller detected how much units the user have purchased and the relay was switched accordingly. When the units purchased became equal to the units consumed, the relay performed its function by switching off the electricity system. The warning message was sent to user mobile through GSM technology before the disconnection of electricity. Hardware model is also designed using GSM module. The theft detection of electricity also became possible by using this system through which server received the message when users by passed the meter.