Microcontroller based Electronic Eye Controlled security System

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Electronic Eye Controlled
Security System
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Electronic Eye Controlled
Security System
Introduction

• The main aim of this project is used to provide
  security system for cash boxes, lockers in malls,
  jeweler shops, homes and banks and also to watch
  continuously if any person is visiting your home.
  
• Nowadays, automation is a developing technology.
  For instance, a doorbell that continuously
  generates ringtones when an unauthorized person
  visit your home.

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Electronic Eye Controlled
Security System
Block Diagram
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Electronic Eye Controlled
Security System
Hardware Components

• Battery
• Slide switch
• LDR
• Ripple Counter IC
• Transistor
• Buzzer
• Relay
• Bulb
• Diode
• Transformer
• Capacitor
• Resistor

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Electronic Eye Controlled
Security System
Resistor

• Resistor is a passive two - terminal electrical
  component that implements electrical resistance
  as a circuit element.
• The ratio of the voltage applied across a
  resistor's terminals to the intensity of current
  through the circuit is called RESISTANCE.
• The relation is represented by Ohm's Law

VIR
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Electronic Eye Controlled
Security System
IC- CD4060

• IC- CD4060 is a ripple binary counter/divider.
• It consists of an oscillator section and 14
  ripple carry binary counter stages.
• The oscillator configuration allows design of
  either RC or crystal oscillator circuits.
• A RESET input is provided which resets the
  counter to the all O's state and disables the
  oscillator.

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Electronic Eye Controlled
Security System
IC- CD4060 Features

• High Voltage Type (20V)
• Common Reset
• 12MHz Clock Rate at 15V
• Fully Static Operation
• Buffered Inputs and Outputs
• Schmitt Trigger Input Pulse Line
• Standardized, Symmetrical Output Characteristics
• 100 Tested for Quiescent Current at 20V
• 5V, 10V and 15V Parametric Ratings

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Electronic Eye Controlled
Security System
Description About Project

• This project is to design an Electronic Eye
  Security Controlled System for homes and public
  places like banks, malls, etc.
• It uses a LDR sensor to sense the intensity of
  light and produces an alarm for representing
  thefts, and also switches ON the lights.
• This electronic security system is placed inside
  lockers and cash boxes.
• When an unauthorized person tries to open the
  locker door and uses a torch light to find the
  valuable things, the torch light falls on the
  electronic eye giving a signal to the buzzer.

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Electronic Eye Controlled
Security System
Description About Project

• It uses a 14 stage ripple binary counter to
  detect the intensity of light through the light
  dependent resistor(LDR).
• The relay driver is connected with the binary
  counter to control the different loads.
• The buzzer is attached to the circuit using a
  transistor to give an indication to the users.

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Electronic Eye Controlled
Security System
Description About Project

• Whenever an intensity of light falls on the LDR
  then the resistance of this LDR will decrease.
• Thus, the ripple counter triggers the
  transistors.
• Also, these transistors trigger the buzzer and
  load connected to the relay to indicate a theft.

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Electronic Eye Controlled
Security System
Working

• LDR senses the light intensity and generates an
  alarm for indicating thefts and also turns ON the
  light.
• If the cash box is in closed condition, the
  interior will be dark.
• Hence in the dark, LDR resets CD4060 and it stops
  oscillating and counting.
• So neither the buzzer sounds, nor the relay
  energizes, indicating that the cash box is closed.

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Electronic Eye Controlled
Security System
Working

• If someone tries to open the door of the cash box
  and uses a torch light to find the valuables.
• Then the light most probably from the burglar's
  touch falls on LDR fitted into the cash box.
• As a result, LDR conducts and goes low.
• Hence pin 14 of IC1 goes high for two seconds
  after the door is opened and goes low for another
  2 seconds.

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Electronic Eye Controlled
Security System
Working

• So the buzzer sounds for two seconds and then
  falls silent for the following two seconds.
• This cycle repeats until the cash box is closed.

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Electronic Eye Controlled
Security System
Circuit Operation

• Initially, connect the circuit as shown in the
  circuit diagram on the bread board.

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Electronic Eye Controlled
Security System
Circuit Operation

• Now connect the supply voltage of 9v using
  battery.
• Place the LDR in light. You can observe no sound
  is produced from the buzzer.
• Place the LDR in dark, buzzer starts ringing. LED
  connected to the buzzer also starts blinking.
• As the intensity falling on the LDR increases,
  sound produced by the buzzer increases.

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Electronic Eye Controlled
Security System
Applications

• Mainly used in security applications.
• Door bell circuits.
• Garage door opening circuits.

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Electronic Eye Controlled
Security System
Advantages

• Used to provide Security.

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Electronic Eye Controlled
Security System
Disadvantages

• Light is required in front of door bell.
• If any person come in out then the bell will
  ring.

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Electronic Eye Controlled
Security System
Future Scope
The future scope of this project can be augmented
by implementing it by using a GSM modem and a
microcontroller. The GSM modem can be interfaced
to the microcontroller to send and receive SMS to
the user in case of burglary.
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Electronic Eye Controlled
Security System
Conclusion
Electronic Eye controlled Security System, device
utilizes binary counter as input. It has been
successfully demonstrated that, this will serve
as a device for providing security. It provides
the user with efficient and reliable security
system for houses, malls etc that supports the
use of a binary counter which sense the intensity
of light through LDR and activating the buzzer
indicating a theft.
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