COLLEGE AUTOMATION

1. REAL TIME AUTOMATION
FOR COLLEGES

2. CONTENTS
 INTRODUCTION
 BLOCK DIAGRAM
 FLOW CHART
 COMPONENTS & EXPLANATION
 CIRCUIT DIAGRAM&EXPLANATION
 ADVANTAGES
 DISADVANTAGES
 FUTURE SCOPE
 CONCLUSION

3. INTRODUCTION
Every educational institution needs the following basic
necessities such as;
 Timely schedule of classes
 Notice Boards etc.
Our project aims to integrate the common functions in a
institution to be controlled automatically.
The electric bell to indicate commencement and
termination of classes(eg: 8.30 am to 4 pm).
Automated light and fan .
Displaying notice on electronic display boards.

4. BLOCK DIAGRAM

5. WORKING
 Here we are using Arduino-uno as the microcontroller.
 RTC is used to keeps tracks of the current time.
 Only authorized people can control the GSM module.
 The electric bell to indicate commencement and
termination of classes and it is controlled by the RTC.

6. FLOW CHART

7. COMPONENTS
 ARDUINO UNO
 GSM MODULE
 RTC
 LDR
 LM35
 PIR SENSOR

8. COMPONENTS
ARDUINO UNO
Arduino is open-source hardware.
Arduino is an open-source project .
The project is based on microcontroller board designs,
which use inputs and outputs.
Inputs capture information from the user or the
environment
outputs do something with the information that has been
captured.

9. 16MHz frequency used.
Layout and production files for some versions of the
hardware are also available.
It is preprogrammed using bootloader.

10. PIR SENSOR
Passive infrared sensor.
electronic sensor that measures infrared (IR) light
radiating from objects in its field of view.
They are most often used in PIR-based motion detectors.
OPERATION
All objects with a temperature above absolute zero emit
heat energy in the form of radiation.
radiation isn't visible to the human eye.
it can be detected by electronic devices designed for such
a purpose.

11. The term passive in this instance refers to the fact that PIR
devices do not generate or radiate any energy for detection
purposes.
They work entirely by detecting the energy given off by
other objects.
PIR sensors don't detect or measure "heat"; instead they
detect the infrared radiation emitted or reflected from an
object.

12. Real Time Clock
A real-time clock (RTC) is a computer clock (most often
in the form of an integrated circuit) that keeps track of the
current time.
The term often refers to the devices in personal
computers, servers and embedded systems, RTCs are
present in almost any electronic device which needs to
keep accurate time.

13. Liquid Crystal Display
A liquid-crystal display (LCD) is a flat-panel display or
other electronic visual display that uses the light-
modulating properties of liquid crystals.
Liquid crystals do not emit light directly.
LCDs are used in a wide range of applications
including computer monitors, televisions, instrument
panels, aircraft cockpit displays.

14. GSM (Global System for Mobile Communications)
Used to describe the protocols for second-generation (2g)
digital cellular networks used by mobile phones.
The GSM standard originally described a digital, circuit-
switched network optimized for full duplex.
GSM uses General Packet Radio Service (GPRS) for data
transmissions like browsing the web.

15. LDR
 A Light Dependent Resistor or a photo resistor
 device whose resistivity is a function of the incident
electromagnetic radiation.
 light sensitive devices. They are also called as photo
conductors.
 made up of semiconductor materials having high
resistance.
 Photo conductivity is an optical phenomenon.

16.  materials conductivity is increased when light is
absorbed by the material.

17. CIRCUIT DIAGRAM

18. CIRCUIT OPERATION
 The heart of the project is Arduino Uno.
 RTC continuously take the time and it is compared
with the program to monitor the electric bell.
 The LCD act as a wireless notice board for the
colleges,
 Enabled by using the GSM Modem.
 Messages are arrived from authorized number.
 The power supply for the circuit is provided by using
adapter of 12V,2A.

19.  PIR sensor sense human presence.
 The presence of human is detected the PIR will turn on
light and fan.
 The LDR is a light intensity detecting sensor.
 output is compare with the threshold value set by the
arduino.
 room intensity exceed the threshold value it get minimize
the intensity of light and viceversa.
 The LM35 is a temperature sensor
 sense the room temperature and the temperature output
will display on LCD in degree celsius.

20. ADVANTAGES
 Manual labour is reduced.
 Delays in functions is reduced.
 Energy conservation, which is a major issue in the present
scenario can be achieved.
 Overall automatic control can be achieved.
 If this control comes into practice, we can contribute even
the tiny bit possible for energy conservation.

21. DISADVANTAGES
 More dependence on technology.
 If the system fails, the whole function of institution can be
affected unless manual overrides are provided.

22. FUTURE SCOPE
 Can be applied to official organisations as well which
follow a proper work schedule.
 Can be applied to;
 ● Factories
 ● Schools
 ● Press

23. conclusion
 Our project aims to integrate the common functions in
a institution to controlled automatically.
 The electric bell to indicate commencement and
termination of classes are controlled by RTC.
 Displaying notice on electronic display boards through
GSM.
 Intensity of light is controlled by LDR.

24. REFERENCES
 www.google.com
 www.electrical4u.com
 www.parallax.com