Laser-Based Security System Project

Laser-Based Security System Project

Laser-based Security System is a type of security and alarm system that uses laser light and a light sensor. A security system protects our homes, offices, banks, lockers, etc. from intrusion and unauthorized access. Different types of security systems are available, and laser-based security is an important and efficient type.

A Laser security system can act as a standalone system, which makes some sound or noise when it detects any irregular activity, or can be part of a much bigger security and home automation system, which can send messages, call the owner, etc.

WARNING: 

We have used a laser pointer in this project. Direct exposure to laser light on the eyes can be very dangerous. Even though it is a low-power laser, avoid direct eye exposure to the laser.

Circuit Diagram

Components Required:

• Plain hardboard 
• Mini House Model
• LASER light
• Resistor ( 2.2 k)
• IC ( BC 547 )
• LDR sensor
• Battery 3.7 V 
• LED light
• Some Attachments

Video Documentation

Advantages

• The circuit, construction, and setup for the Laser Security System are very simple.

• If used with a battery, the laser security system can work even when there is a power outage.

Disadvantages

• The laser security system works only if the laser is obstructed. If the intruder passes without obstructing the laser, it is considered a failure.

• To secure a larger area, we need more lasers and corresponding sensors.

Applications

• Laser Security Systems can be used in safety lockers in our homes, where even if the locker’s code is hacked, it acts as an additional layer of security.

• Apart from security systems, this laser-based setup can also be used to check if pets or babies crossed a certain boundary. 

For Video help click below: