Remote Electricity Billing System Using GSM Modem
Title of the project: Remote electricity billing system using GSM
Domain: Electrical Engineering, Power Electronics,
Software: C, Keil, Proload
Power Supply: +5V, 500mA Regulated Power Supply
Display: a) LCD
b) GSM Mobile Phone
LCD: HD44780 16-character, 2-line (16X2)
LED: 5mm
Crystal: 11.0592MHz
Energy Meter: Prototype with 12VDC
Applications: Electricity Boards
Abstract
The advantages of remote meter reading and spot billing are well recognized by the various electricity boards in the country today. Not only does spot billing lead to much greater revenue-collection efficiency and better decision systems, it also brings intangibles like transparency and better customer service to the system.
Though there exist various devices in the market that aid in spot-meter billing, none has become either an industry standard or widely prevalent. The reasons range from limited computing power and lack of customizability to high price and absence of local technical support.
Remote electricity billing is a unique concept, in which the electricity board can collect the consumed unit’s data from consumer on mobile phone using GSM network. Each consumer is provided with a unique energy meter, which is having a GSM modem, microcontroller unit and a display unit internally. A SIM card is required for communication. Whenever this system receives an SMS from electricity board, it calculates the number of units consumed and billing amount on slab rate, displays on LCD for user interface. This system also sends the same message to the electricity board for departmental information and database.
The unique feature of this system is, the electricity board can disconnect or reconnect the connection from remote place through the mobile phone. As this project works on GSM network, the system can be controlled from any part of the world.
This project uses regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.



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