GSM-Based IR Security System

Description

GSM-Based IR Security System: A Smart IoT Security Solution

Introduction In today’s world, security is a major concern for both personal and commercial spaces. A GSM-Based IR Security System is a highly efficient and cost-effective solution that uses infrared (IR) sensors and GSM technology to detect unauthorized access and send instant alerts via SMS. This project is ideal for EEE final-year students looking to showcase an advanced IoT-based security system.

1. Overview of GSM-Based IR Security System
2. Components Required
3. Working Principle
4. Circuit Diagram & Assembly
5. Advantages of GSM-Based IR Security System
6. Applications
7. Conclusion

1. Overview of GSM-Based IR Security System

The GSM-Based IR Security System is designed to detect motion using infrared sensors and send real-time alerts via SMS using the GSM module. It ensures 24/7 surveillance and is ideal for securing homes, offices, banks, and restricted areas.

2. Components Required

To build this project, the following components are required:

• Arduino UNO – The main controller
• GSM Module (SIM800L/900A) – Sends SMS alerts
• IR Sensors (Tx & Rx) – Detect motion
• 18650 Battery – Power supply
• Buzzer & LED – Alert system
• Resistors & Connecting Wires – Circuit connections
• Power Switch & Charging Module – Power management

3. Working Principle

The system functions as follows:

1. IR sensors detect movement when an unauthorized person enters the secured area.
2. The Arduino UNO processes the input signal from the IR sensors.
3. The GSM module is activated, sending an SMS alert to the registered phone number.
4. Simultaneously, the buzzer sounds an alarm, and the LED blinks to indicate intrusion.
5. The 18650 battery ensures uninterrupted operation, making it a reliable security system.

4. Circuit Diagram & Assembly

The circuit includes IR sensors connected to the Arduino’s digital pins, while the GSM module connects via TX & RX pins for communication. The entire system is powered by a 3.7V 18650 rechargeable battery.

Step-by-Step Assembly:

1. Connect the IR sensor outputs to Arduino’s analog pins (A0, A1, A2, etc.).
2. Attach the GSM module’s TX and RX to Arduino’s RX and TX (Software Serial pins).
3. Connect the buzzer and LED to digital pins.
4. Power the entire system using the 18650 battery & charging module.
5. Upload the Arduino code and test the system.

5. Advantages of GSM-Based IR Security System

• Real-Time Alerts: Instant SMS notification on intrusion.
• Wireless Operation: No complicated wiring required.
• Low Power Consumption: Uses energy-efficient components.
• Cost-Effective: Affordable security solution compared to commercial alternatives.
• Customizable: Can be modified for additional sensors & smart automation.

6. Applications

The GSM-Based IR Security System is suitable for various applications:

• Home Security – Detect unauthorized entry.
• Bank Security – Secure vaults & restricted areas.
• Offices & Shops – Protect from theft & burglary.
• Industrial Areas – Monitor restricted zones.
• Educational Institutes – Ensure campus security.

7. Conclusion

The GSM-Based IR Security System is a smart, efficient, and scalable solution for real-time intrusion detection. It combines IoT security technology with GSM communication, making it a reliable choice for EEE final-year students who want to develop innovative security solutions.

For more details, visit HTE BD or follow us on Facebook.