system of operation and control of grid system which is controlled by a bluetooth and gprs. Design for a project to the electrical department.

1. Department of Electrical & Electronics Engineering
“Substation monitoring and control by smart phone”
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Er.Chelladurai.,BE(EEE).,DEE
E.,

2. CONTENTS
• Objective
• Introduction
• Block diagram
• Working principle
• Advantages
• Applications
• conclusion
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3. INTRODUCTION
• The proposed system is based on ARDUINO.
• The transmitter is a mobile phone which uses certain codes
corresponding to a particular relay to which the device is connected.
• At the receiver , the GSM modem receives the message from the
mobile phone and gives it to the ARDUINO which acts to control the
devices.
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4. OBJECTIVE
• The objective of this project is to design and develop a
wireless a wireless communication link to monitor and
control equipments that are far away from the user and
also develop a high security system to keep a check on
them.
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5. BLOCK DIAGRAM
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LCD
Display
POWER
SUPPLY
RF
Decoder
RF
Receiver
MAX
232
GSM
modem
RELAY
RF
Transmitter
MOBILE
RF
Encoder
Sensor

6. WORKING PRINCIPLE
• At the transmitter side, the user sends an SMS to the GSM modem
using AT commands indicating which device is to be controlled.
• At the receiver side, ARDUINO controls the devices through relays
depending upon the code received by the GSM modem.
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7. GSM MODEM
• GSM MODEM is a multi-functional, ready to use rugged unit that can
be embedded or plugged into any application.
• The modem can be controlled and customized to various levels by
using the standard AT commands.
• It comprises several interfaces:-
LED function including operating status
External antenna
Serial and control link
SIM card holder
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8. MAX232
• MAX232 was created for one purpose, to interface between data
terminal equipment(DTE) and data communication equipment(DCE)
employing serial binary data interchange.
• So as stated the DTE is the terminal or computer and the DCE is the
modem or other communication device.
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9. METHODOLOGY
Monitoring and controlling using Mobile phone.
Controlling information send via GSM module.
It would be implemented in power house.
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10. APPLICATION
• Home automation
• Office automation
• Industrial automation
• To control the water pump sets in agricultural fields.
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11. ADVANTAGES
• The status of various devices can be monitored and controlled from
anywhere.
• The operation if the system is very simple and can be used by anyone
with a basic knowledge of operating mobile phones.
• Easy to upgrade as per the user requirement.
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12. LITERATURE SURVEY
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S.NO Name/Title/Public
ation Details
Methodology Comments
1 Electric switch on/off
system using android
app via wi-fi
Android app via wi-fi Got knowledge about
wi-fi control
2
Microcontroller based
substation monitoring
and controlling
system with GSM
modem by Amith
Sachan
GSM Got knowledge about
GSM

13. THANK YOU
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