Sunday, 14 December 2014
ENERGY METER WITH AUTO CUT OFF ON NO BALANCE EEPROM BASED SMART PREPAID
ENERGY METER WITH AUTO CUT OFF ON
NO BALANCE EEPROM BASED SMART PREPAID
ABSTRACT:
Due to the drastic
changes in technology in the last decade, so many advancements were introduced
in electricity departments. The electricity bill can be paid now through E-Seva
centers, ATMs, Net-banking and even through mobile phones. But prepaid
electricity is a unique and new concept which saves lot o time and a power for
electricity department and consumer. In this system the user has to purchase an
EEPROM based recharge card and it should be inserted in the slot provided on
prepaid energy meter kit.
After inserting the
recharge card into the system the user should press RECHARGE key to start
recharge. Then the system will be loaded with specific units as per the
recharge card value. A 16X2 is provided to read units available. Here the
system is connected with loads. If the load increases in the system, current
also increases and is calculated by energy meter which counts the analog data
and converts into digital which is sensed by controller and its corresponding count is also calculated. Whenever the count value reaches
one thousand, 1unit is decremented from EEPROM and these values are displayed on LCD.
An EEPROM
is provided on the board to store the updated recharge units and energy meter pulse count. At every instant the
count value and units values are stored in EEPROM so that the data will not be
lost even in power failure cases. When balance of two units is reached a continuous beep is given by
the system. When the recharged units become
zero on power consumption, the system shutdowns all the loads. To use the system again the user has to reload
the units by recharging the system.
The user has to place this recharge card in slot provided to recharge.
After pressing the recharge key, the system will be loaded with the
units corresponding to that recharge value.
After successful recharge, the load automatically gets ON. This system uses 5V regulated power supply for the
microcontroller.
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.
APPLICATIONS:
Ø Power management applications
Ø Electricity bill collection system
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