GSM Based Load Control Energy Meter Reading System Using PIC Microcontroller with Number of New Features: The GSM based energy meter reading system is very advanced system, to the check the meter reading from remote areas. This system has implemented in advanced countries, now there is need to implement this system in Pakistan. By using this system, the energy production department can easily check the energy meter reading of any consumer at any time from any place. If they use this system, then there is also no need to hire the meter reader because this time consume and expensive job.So many companies or peoples are working on the same job and trying to develop a best GSM based energy meter reading system. But their system is still so much costly and complicated as compared to the simple energy meter reading system. Therefore, this system to implement in Pakistan is still costly and impossible.
Here we are introducing a GSM based load control energy meter reading system using the microcontroller 18F452 belongs to PIC family. This system is not so much costly and complicated as compared to the other energy meter reading system. It is very easy to implement in all countries specially in Pakistan where the energy crises have become at peak. This system has made with the help GSM modem for sending or receiving the meter reading at consumer mobile phone. MAX 232 has been used here for serial communication and LSD display has been used here for display the consumer reading. For operating system, there is no need of any other power supply this system is directly connected to the 220 V ac or wapda power supply.
Block Diagram of GSM Based Load Control Energy Meter Reading System
Figure below shows Block Diagram of GSM Based Load Control Energy Meter Reading System
Components List of GSM Based Load Control Energy Meter Reading System
This GSM based load control energy meter reading system has following components,
- Energy Meter
- GSM Modem
- Max 232
- Pic Microcontroller 18F452
- Bridge Rectifier
- Voltage Regulator
- LCD Display
- Relay Driver
- Simple Relay
- AC Supply
Energy Meter: In GSM based load control energy metering system the meter is used for measuring the energy which would be consume by the consumer or electrically powered device. This meter is calibrated in billing units and measured the power in kilowatt hour. In this system, the meter is interfaced with pic microcontroller through the interface device.
GSM Modem: The GSM modem is a device, which is used for controlling the any device or system through wireless network. This is a sim base device, which can be easily connect to controlling system or device. This device has the facility of message sending or receiving.
Max 232: The max 232 is an integrated circuit which is used for serial communication between the modem and microcontroller. This integrated circuit converts RS 232 serial port signal to the suitable TTL logic signal for serial communication. This circuit also have the dual work facility means send and receive the signal.
PIC Microcontroller 18 F452: In this GSM based load control energy meter reading system pic 18F452 microcontroller have been used for the intelligently and remotely control this system. This is 34 pins 8-bit microcontroller consists of 4 input, output ports for send or receive the data. This is powered up with voltage regulator and c language is used for its programming through the keil software. When the consumer or employer of electricity sent the message or information from his mobile phone then this message or information is received by the GSM modem, which is interfaced with microcontroller through the max 232.Based on this message or information the microcontroller make the decision for on or off the load. This microcontroller is also interfaced with LCD display for showing the status of load.
Transformer: Transformer is a device which is used for step up or step down the ac voltage at 50Hz frequency. Here we are using this for step down the 220V ac to 12V ac.
Bridge Rectifier: In this system, the bridge rectifier only convert the ac voltage into dc voltage for power up the microcontroller, Max232, LCD display and relay driver.
Voltage Regulator:The voltage regulator is connected to the output of bridge rectifier for regulating the dc voltage. The LM 7805 voltage regulator is used here.
LCD Display:The LCD display here is used for displaying the load status, means the how much load is running on or off. This LCD display is interfaced with microcontroller and is powered up with voltage regulator.
Relay Driver: This is also an integrated circuit and is used for driving the load relays.
DB9:The DB9 is 9 pins connector which is just used for connecting the max232 and GSM modem.
Working of GSM Based Load Control Energy Meter Reading System
For understanding the working of this system, first we test the GSM modem. For testing the GSM modem first, we sent any message from our mobile phone and wait for some time, when the same message we have received at LCD of GSM based load control energy meter reading system. Then we consider the system is ok. Different loads we have connected with this system. The energy which is consumed by these loads can be seen on energy meter. The reading of the meter is given to the microcontroller in form of pulses, then the microcontroller shows this energy on LCD display. Similarly, when we want to switch off any load then we just dial the load number from our mobile phone and sent the message to the GSM, which is connected to the microcontroller, then the microcontroller would be off that load. By doing this, we can easily control the energy meter reading and reduce the billing.
Advantages of GSM Based Load Control Energy Meter Reading System
The GSM based load control energy meter reading system has following advantages.
- By using this system we can easily reduce the man power.
- Through this system we can manage our loads and ultimately, we can reduce our billing.
- Through this system we can know our energy meter reading all the time form any place.