Intelligent Energy Saving System_203

8/3/2019 Intelligent Energy Saving System_203

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Intelligent

Energy Saving

System


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INTRODUCTION

Intelligent Energy Saving System, the aim of the project is to

save the energy.

In this project work the basic signal processing of various

parameters which are temperature, LDR, Smoke sensor.

The output of the micro-controller is used to drive the LCD

display.


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PIR SENSOR

ZERO CROSSING

DETECTOR

LDR CIRCUIT

OPTOCOUPLER

OPTOCOUPLER

DIMMER1

DIMMER2

LAMP

FAN

MICRO

CONTROLLER

PIC 16F72

LCD DISPLAY

THERMOSTAT

POWER SUPPLY

Block Diagram:

Principle Of Operation:

When a person entering into that place the PIR sensor absorbs the black body

radiation emitted by that person and activates it.

with the help of LDR sensor it checks the room lightening , and it takes thecondition when the light is sufficient

When a person is leaving that place, the PIR sensor will activate again


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Special Microcontroller Features:

1,000 erase/write cycle FLASH program memory typical

Power- on Reset (POR)

Power-up Timer (PWRT)

Oscillator Startup Timer (OST)

RC oscillator for reliable operation

Programmable code protection

Power saving SLEEP mode

FEATURES OF PIC 16F72:


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Components Description:

PIR SENSOR:

A PIR detector is a motion detector that senses the heat emitted by a

living body.

The sensor is passive because, instead of emitting a beam of light or

microwave energy

When an intruder walks into the detectors field of vision, the detector

sees a sharp increase in infrared energy.


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LDR:

Light dependent resistor as the name suggests depends on light for the variation of

resistance.

Depending on the exposure of light the resistance can fall down to value of 500 ohms.

When light falls on the strip, the resistance decreases.

Light dependent resistors are available as discs 0.5cm to 2.5cm. The resistance rises to

several Mega ohms under dark conditions.


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ZERO CROSSING DETECTOR (ZCD):

It detects the transition of a signal waveform from positive and negative, ideally providing a

narrow pulse that coincides exactly with the zero voltage condition.

Zero crossing detectors as a group are not a well-understood application, although they

are essential elements in a wide range of products.

The circuit is also sensitive to level, and for acceptable performance the AC waveform

needs to be of reasonably high amplitude.

OPTOCOUPLER:

Optocoupler is a device that uses a short optical transmission path to transfer a

signal between elements of a circuit, typically a transmitter and a receiver, while keeping

them electrically isolated.

Thermostat Control:

In its operating mode, the DS1621 functions as a thermostat with programmable hysteresis.

The thermostat output updates as soon as a temperature conversion is complete.


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Price List For 1 Kit

S.No. Component Quantity Price

1 PIR Sensor 1 400.00 INR

2. LDR 1 18.00 INR

3. OPTO coupler 1 40.00 INR

4. PIC 16F72 MC 1 214.775 INR

Total 672.775 INR


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Future Direction:

We except that our next generation will develop this energy saving system with

wireless network.

This can be developed with wireless such that we can place different sensors in

different places. This sensor will activate the micro controller with the signals instead

of using wires.


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Conclusion:

Intelligent Energy Saving System is not limited for any particular

application, it can be used anywhere in a process industries with little

modifications in software coding according to the requirements. This concept

not only ensures that our work will be usable in the future but also provides theflexibility to adapt and extend, as needs change.


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Any Queries


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Intelligent Energy Saving System_203

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