This document describes the design of an intelligent SMS-based remote electricity metering and billing system. The system uses a GSM modem connected to a microcontroller to allow an electricity provider to remotely read electricity meters, send bills to customers via SMS, and disconnect or reconnect power based on SMS commands. The system provides advantages like automated billing, improved revenue collection, transparency, and better customer service compared to traditional meter reading. There is potential to expand it to support multiple customers by connecting the GSM modem to a server database.
3. ABSTRACT
• Now a days there are various electronic
equipment available for remote operation of
electronic devices.
• However, the main disadvantage of these
systems is that they can be operated only from
short ranges and also less reliable.
• The advantages of remote meter reading and
spot billing are well recognized by the various
electricity boards in the country today.
4. • To overcome the above drawbacks, we are using
one of the wireless communication technique
i.e., GSM (Global System for Mobile
communications).
• Remote electricity billing is a unique concept, in
which the electricity board can collect the
consumed units 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.
7. • 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.
9. FEATURES OF AT89S52
• ROM - 8K bytes
• RAM - 256 bytes
• Timer - 3
• I/O pins - 32
• Serial port - 1
• Interrupt sources - 8
10. Liquid Crystal Display (LCD) :
A Liquid Crystal Display (LCD) is a thin, flat panel
used for electronically displaying information such as
text, images, and moving pictures.
Its uses include monitors for computers, televisions,
instrument panels, and other devices ranging from
aircraft cockpit displays, to every-day consumer
devices such as gaming devices, clocks, watches,
calculators, and telephones.
11. • Among its major features are its lightweight
construction, its portability, and its ability to be
produced in much larger screen sizes than are
practical for the construction of cathode ray tube
(CRT) display technology.
12. Pin Description Of LCD:
1.1. GroundGround
2.2. Vcc +5VVcc +5V
3.3. Contrast controlContrast control
4.4. Register select (RS)Register select (RS)
5.5. Read/Write (RD/WR)Read/Write (RD/WR)
6.6. Enable (EN)Enable (EN)
7 – 14 pins all are data pins D0 – D77 – 14 pins all are data pins D0 – D7
15.15. Vcc +5VVcc +5V
16.16. GroundGround
14. GSM :
• A GSM modem is interfaced to the microcontroller.
• The GSM modem sends an SMS to the predefined
mobile number and informs about this accident.
• The project is built around the AT89S52
Microcontroller .
• This micro controller provides all the functionality of
the SMS alert system.
• It also takes care of filtering of the signals at the
inputs.
15. COMMANDS :
#DCONNT To disconnect the consumer power
supply (in case he doesn’t pay the bill)
#CCONNT To connect the power supply (if he
pays)
#BILL 2 To send the bill for the consumed units
to the customer
#PAID00 To reset the consumed units(UB)
17. ADVANTAGES :
• Billing Automation
• Revenue Collection Efficiency
• Transparency in distribution
• Better customer Service
• Zero man-made errors
18. SCOPES FOR ADVANCEMENTS :
• This system is developed for only one consumer. If the
consumers are more, the electricity board also should
have a separate GSM modem with PC interface to
receive various SMS and store all the details in system
database.
• Special software can be developed to monitor all bill
payments and to disconnect the electricity for default
consumers.
19. CONCLUSION :
Hence this project provides a best solution for the
users to know how much amount of power is
consumed in their day- to- day life and also the
amount of power consumed is also under the user
control. so by using this project the department can
save the time also.
