The electronic eye security control system is
founded in the year 1997 and base of operations in New Delhi. There are
four kinds of organizations under these systems, namely electronic eye
Pvt.Ltd, electronic eye systems, Indian institute of science technology
and Mahamahi Exims. Electronic Eye creates a complete collection of
surveillance products and high-tech security. These Systems work on the
integration of system and project execution at the customers place for
numerous surveillance products.
Electronic Eye Security Controlled System
Magic eye or electron eye is a one type
of electronic device, used 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. This system gives security for homes
when any unauthorized person is trying to enter into your home without
your consent. This article gives an overview of electronic eye security
control system project and its working.
Electronic Eye Security Control System Circuit Design
The circuit of the electronic eye
security control system is separated into two parts such as logic
circuit and power supply. The power supply circuit
is designed with a battery, capacitors, P-N junction diode and
regulators. Here diode is connected in forward bias mode and it protects
the circuit from negative voltages.When the battery is connected in
reverse polarity, there is a chance of circuit damage. So the diode is
connected in the forward bias, that allows the flow of current in only
one direction. The voltage across the diode is 0.7V.
A voltage regulator
(IC 7805) is used to regulate the o/p voltage of the circuit. Here 05
denotes the o/p voltage and 78 denotes the series. Thus 5 volts is
generated at the o/p of the voltage regulator. To eliminate the ripples
two capacitors are connected before and after of the voltage regulator.
Thus the voltage which is generated from the voltage regulator is
applied to the logic circuit.
The logic circuit is built with LDR,
operational amplifier, transistors and a buzzer. A 220 kilo ohm resistor
and a LDR are connected in series. When the LDR is placed in a dark
place, the resistance of the LDR will increase. In the same way, when it
is placed in the light, then the resistance will decrease. Thus, there
is a change in the series resistances. When the LDR is in the dark, then
it has high resistance value and generates the logic high value at the
o/p. When the LDR is in light, then it has low resistance value and
generates the low logic value.
The IC LM358
consists of two inputs and one output which is applied to the
transistor. Two transistors are connected to the buzzer. The first
transistor reverses the input from the IC. The second transistor runs
the buzzer and the diode is used for the protection.
The buzzer used in this circuit has two
pins, where one pin is connected to the NOT gate and the remaining pin
is connected to the LED. When the o/p of the gate is high, then the
buzzer starts ringing and LED also blinks.
Block Diagram of Electronic Eye Security Control System
The block diagram of the electronic eye
security control system mainly includes Battery, Slide switch, LDR,
Ripple Counter IC, Transistor, Buzzer, Relay, Bulb, Diode, Transformer,
Capacitor and Resistor. The main principle of this Electronic eye
security control system project is to give a buzzer when there is any
person at the door entrance.When the light falls on the LDR tells
whether a person at the door entrance is present or not. Whenever there
is any object placed at the entrance of the door, light dependent resistor is in dark and gives the buzzer and the LED starts blinking.
Project Description
The main concept of this project is to
design an Electronic Eye Security Controlled System for homes and public
places like banks, malls, etc. This project 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 in such a way that if 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 gives a signal to the buzzer.
This project can be designed to secure
lockers and cash boxes where security is needed like homes, banks, etc.
This project uses a 14-stage-ripple-binary counter to detect the
intensity of light through the light dependent resistor. 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.
Whenever an intensity of light falls on the LDR then the resistance of this LDR will decrease, and thus, the ripple counter triggers the transistors. Also, these transistors trigger the buzzer and load connected to the relay to indicate a theft.
Furthermore, this Electronic eye security control system project can be enhanced by using a microcontroller and a GSM modem. The GSM based home security system can be interfaced with the microcontroller to send & receive an SMS to the authorized person in case of robbery.
Therefore, this is all bout electronic
eye controlled security system using LDR, and the applications of this
project mainly include door bell circuits, garage door opening circuits
and security applications. We hope hat you have got a better
understanding of this concept or electronics projects,
please give your valuable suggestions by commenting in the comment
section below. Here is a question for you, why electronic eye security
system is used for?
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