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    International Journal of Innovative Science and Research Technology
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    Almost all the institution like colleges, universities etc, makes use of a system in which lighting can be controlled by a switch, for such a system, majority of the institution members forget to turn off the light, fans. etc while leaving the classroom. This leads to the heavy wastage of energy and the institution and up paying a heavy amount of money for this unwanted wastage. New innovations have led to the remote system. Even after this, leaving the device running where we are not using it is still a serious challenge. So for the judicious use of energy we have developed the “Intelligent energy saving system”. In this system we divide the classroom into four grids. Lighting of a particular grid of the classroom can be controlled by human presence using this system.

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    Intelligent Energy Saving System for Classroom Based on Pic Microcontroller

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    Almost all the institution like colleges, universities etc, makes use of a system in which lighting can be controlled by a switch, for such a system, majority of the institution members forget to turn off the light, fans. etc while leaving the classroom. This leads to the heavy wastage of energy and the institution and up paying a heavy amount of money for this unwanted wastage. New innovations have led to the remote system. Even after this, leaving the device running where we are not using it is still a serious challenge. So for the judicious use of energy we have developed the “Intelligent energy saving system”. In this system we divide the classroom into four grids. Lighting of a particular grid of the classroom can be controlled by human presence using this system.

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    © All Rights Reserved
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    77 views3 pages

    Intelligent Energy Saving System For Classroom Based On Pic Microcontroller

    Uploaded by

    International Journal of Innovative Science and Research Technology
    Almost all the institution like colleges, universities etc, makes use of a system in which lighting can be controlled by a switch, for such a system, majority of the institution members forget to turn off the light, fans. etc while leaving the classroom. This leads to the heavy wastage of energy and the institution and up paying a heavy amount of money for this unwanted wastage. New innovations have led to the remote system. Even after this, leaving the device running where we are not using it is still a serious challenge. So for the judicious use of energy we have developed the “Intelligent energy saving system”. In this system we divide the classroom into four grids. Lighting of a particular grid of the classroom can be controlled by human presence using this system.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Flag for inappropriate content
    of 3

    Volume 3, Issue 5, May – 2018 International Journal of Innovative Science and Research Technology

    ISSN No:-2456-2165

    Intelligent Energy Saving System for Classroom


    Based on Pic Microcontroller
    Suresha Nayak K Ashwin Kumar
    Electronics & Communication Engineering Assistant Professor, Electronics &Communication
    Sahyadri College of Engineering & Management Engineering
    Mangaluru, India Sahyadri College of Engineering & management
    Mangaluru, India

    Abstract:- Almost all the institution like colleges, OFF by the program in the microcontroller. When all the
    universities etc, makes use of a system in which lighting people leave the room all the lights switch OFF. Even this
    can be controlled by a switch, for such a system, majority system has challenge i.e. the door should not wide enough for
    of the institution members forget to turn off the light, 2 or more people to enter as the counter may count them as 1.
    fans. etc while leaving the classroom. This leads to the
    heavy wastage of energy and the institution and up paying Many researchers have used vacancy sensor replacing
    a heavy amount of money for this unwanted wastage. New the standard wall switches. These are combined with passive
    innovations have led to the remote system. Even after this, infrared technology to detect the presence of presence in the
    leaving the device running where we are not using it is still room. A light in a room turns OFF within 5-10 minutes of its
    a serious challenge. vacancy with this system. These sensors are fixed on the
    ceiling to get a 360° view which can cover up to 800sq.ft
    So for the judicious use of energy we have developed area. But these sensors have a drawback of limited range i.e. a
    the “Intelligent energy saving system”. In this system we single sensor might not be enough to reach the whole room
    divide the classroom into four grids. Lighting of a and also it needs a lot of wires in case for wired sensors.
    particular grid of the classroom can be controlled by
    human presence using this system. III. PROPOSED SYSTEM

    Keywords:- PIC Controller, Automation, Relay, Energy. Our proposed system can stand up to all the above
    drawback of the existing system. This system takes 2 things
    I. INTRODUCTION into account
     Human presence
    Many in this world are forced to live without  Intensity of light
    electricity. In such places people get electricity only for a few
    hours a day. For brighter future, our generation people need a The intelligent energy saving system can divide into two
    electricity which is reliable and efficient. This problem of low main parts.
    power and frequent power shortages is a serious issue for  Camera capture unit
    India’s productivity.  Hardware processing unit
    Camera capture unit continuously captures image from
    This calls for a judicious use of the existing power and the classroom. It sends these images to the MAT LABS,
    also for advanced technologies. Leaving the lights & fan’s where using the face detection algorithm the faces and non
    ON when we are not using them in our classroom is face are detected. The image captured by the camera divided
    contribution to the wastage of energy. in to 4 segments. When people are present in any of the grids
    then face is detected in the corresponding grid.
    So the intelligent energy saving system has been
    developed in which we have a camera to capture a human
    face in the classroom grids. So if there is human presence in
    the classroom then the lights of corresponding segment turns
    ON and vice versa, which proves to be an advantage in
    stopping electricity wastage. Captured image from the camera
    is processed in the MAT LAB. If there is face detection, then
    signals will be sent to the micro controller unit. There by
    through relay lights are controlled.

    II. EXISTING SYSTEM

    Intelligent energy saving system doesn’t require


    manually switching the lights ON or OFF. PIR at the entrance
    of the room senses people entering in and out of the room.
    Counter keeps a count of the number of people entering or
    leaving the room and accordingly the light is switched ON or Fig 1:- Block Diagram For Proposed System

    IJISRT18MY359 www.ijisrt.com 456


    Volume 3, Issue 5, May – 2018 International Journal of Innovative Science and Research Technology
    ISSN No:-2456-2165
    When faces are detected in any of the 4 grids dividing B. PIR Sensor
    the classroom, then lights in the corresponding grid turns ON.
    Similarly if faces are detected in multiple grids then multiple
    grid lights turn ON. Hardware unit receives signals from
    MAT LAB via serial communication.

    Intelligent energy saver system has been implemented


    by the use of PIC 16F877A microcontroller. Based on the
    camera captured images are processed by MAT LAB. The
    software in the PIC controller controls relay to turns lights
    ON or OFF.
    Fig 3:- PIR Sensor
    The light required for a good working environment in a
    classroom is estimation by the CIBSE lighting guide is 300 Sensor detects motion by sensing the heat emitted by
    lux. At present most institution have a brightly lit classroom humans. When a living being approaches the sensor, they
    because of the day light and the classroom light LDR in own switch on automatically. This sensor does not be beam of
    system detects the intensity of light in the classroom. LDR is lights to sense a person but instead the PIR is itself sensitive
    active only when all 4 grids are lit. So when all 4 grids are lit to the energy emitted by a living thing.
    and if intensity becomes greater than 300 lux which makes
    the system to bring it back to 300 lux. This helps in saving C. Relay
    power.

    The new system using PIR can be used control street


    light to save power. During night time the streetlight is
    continuously kept ON with full light intensity. During the
    right time the new system reduces the light intensity to 25%
    by using PWM technique. If there is any sort of motion
    detected by the motion sensors then the light intensity will be
    raised to 100%.

    IV. HARDWARE USED

    A. PIC microcontroller Fig 4:- Relay Unit

    Relay is an electro machine device activated by the use


    of an electric current. Current in one circuit causes another
    circuit for close or open. Relay is used in various applications
    because of its easy to use. They are used widely in electronic
    applications.

    D. LDR

    Fig 2:- PIC Microcontroller

    PIC microcontroller in single integrated circuits


    performs one task and executes a specific application. It
    contains programmable I/O peripherals, memory and a CPU. Fig 5:- LDR Sensor
    Microcontroller are used in electronic devices like mobiles,
    washing machine etc LDR’s are useful in light /dark sensor circuit. LDR’s in
    street light can switch the lights ON/OFF automatically.
    Resistance of LDR can be very high. This may be as high as
    high as 1000kohms.

    IJISRT18MY359 www.ijisrt.com 457


    Volume 3, Issue 5, May – 2018 International Journal of Innovative Science and Research Technology
    ISSN No:-2456-2165
    E. Flow Chart appliances in a particular grid. This system saves the power
    and also more efficient.

    REFERENCES

    [1] “Automatics Room Light Controller with visitor counter


    http://www.projectsof8051.com/automatic-room-light-
    controller-with-visitor-counter”.
    [2] GHP://www.jieyue.net/htmllilum1page_show86921.htm.
    [3] “Technology and application of design automation” by
    chensuishens Lu Jiangana.
    [4] “Smart Energy Management on zigbee technology” by
    A.Rahul and E. Sneha.
    [5] “The intelligent light control system” by Jessie and F.
    Zhang.
    [6] “Smart street control system” international journal of
    intelligent system applications” vol.7(1).2014.

    Fig 6:- Flow Chart of Proposed System

    V. RESULTS

    Fig 7:- Energy Consumption Chart

    Experimental observation shows that the average


    electric units consumed in classroom have been recorded as
    3.2 units per day using existing system. The average
    electricity units consumed in the classroom after
    implementation of new system is 2 units. Our objective of
    reducing energy wastage has been achieved by saving 1.2
    units. This also means that about 38% of energy is saved.

    VI. CONCLUSION

    Energy is one of the major resources of human kind


    reports suggests that educational institutions wastes a lot of
    electricity. So for this reason intelligent energy saving system
    has been built, in which a room has been divided into grids
    and camera is placed for capturing human presence inside the
    classroom. It uses the human presence for switching the

    IJISRT18MY359 www.ijisrt.com 458

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