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Motion Sensor SystemUsing PIR Sensor

ByAshutosh Dabas

ECE-IV Sem

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Introduction* The project Audio Visual Motion Sensor using a PIR sensor itself iscapable of detecting slightest amount of motion.

* A motion sensor is a device for motion detection i.e. a device thatcontains a physical mechanism or electronic sensor thatquantifies motion that can be either integrated with or connected toother devices that alert the user of the presence of a moving object

within the field of view. They form a vital component ofcomprehensive security systems, for both homes and businesses..

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PIR MOTION SENSOR

* Apassive Infrared sensor (PIR sensor) is anelectronic sensor that measures infrared (IR) light radiating fromobjects in its field of view. They are most often used in PIR-basedmotion detectors.

* The goals of the motion sensor system are to detectmovements in a specified area triggering a siren/buzzer tosound or to light a LED.

* This design promotes added control to the crime rate of the

regulated work environment after hours of work operation. Italso cuts down on expenditure costs on human resourcesbecause you dont need any operator to make work out.

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Project Specifications

Motion Sensor operates on 9 -12 volts Buzzer operates on 5 volts

About 3-4 meter detection range

PIR detector has a field view from 125 to 138

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Project Components

PIR Sensor (LHI-954 / KDS245) Power supply (LM7805) Sound Generator IC (LM555) Op. Amp's IC (LM324) Wires 1 Led Bread board Resistors Capacitors Buzzer

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Circuit Diagram

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PIR MOTION SENSOR

Bottom View

Top View

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WORKINGA motion detection alarm circuit using a PIR.SENSOR

motion detection, if the move is a positive light fromthe PIR sensor, triggered by a delay circuit, Q1 and relay

it to work and hold for about 20 seconds. to apply tothe siren to signal a warning to stop, or discarded by

the switch S1

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ApplicationName

Sliding Doors

Motion Sensing Light

Motion Sensor Trash Can

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ApplicationName

Motion Sensor alarm

Motion Sensor Switch

Motion Sensor Hands Free Faucet

Safety Beam Motion Alert

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Benefits

Increased security control Convenience Relatively inexpensive. Provides reliable and efficient results.

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Project Schedule ACTIVITY From To Number of Days

Brainstorming 22-June-12 27-June-12 6PCB Designing

Practice28-June-12 01-July-12 4

Mini Projects 02-July-12 08-July-12 7

Idea Preparation

& Ckt Diagram

09-July-12 13-July-12 5

Hardware 14-July-12 16-July-12 3

Wiring and testing 17-July-12 23-July-12 7

SolvingConnection

Problem

24-July-12 24-July-12

1

Circuit Testing 25-July-12 26-July-12 2

Project Report &Submission

27-July-12 27-July-12 1

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Problems Encountered

* The wires connection problem (The isolation ) .* The PIR sensing getting affected due to no casing.

*Transistor not being able to pass on 5V to buzzer.

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Thank you for your time

Questions?