Project No. 09: Creating a Door Lock Security System With Call Notification

 1. Introduction: 

The Door Security System is an innovative project designed to enhance the security of a door by incorporating advanced technology. The system utilizes an ultrasonic sensor mounted on the door and an obstacle positioned on the adjacent wall to detect any unauthorized movement of the door from its fixed position. When such movement is detected, the system triggers an alarm to alert the surroundings and simultaneously sends a message to a pre-configured authorized person via a GSM module. This project aims to provide an effective and reliable solution for door security, ensuring prompt notifications and swift response to potential breaches.

The primary components of the system include the ultrasonic sensor, microcontroller (such as Arduino), obstacle, GSM module, and an alarm mechanism. The ultrasonic sensor continuously emits ultrasonic waves towards the obstacle and measures the time it takes for the waves to bounce back. By analyzing these measurements, the system can determine the distance between the sensor and the obstacle, effectively establishing the fixed position of the door.

2. Working: 

Step1: Initialization
Initialize the microcontroller and set up the necessary pin modes for the ultrasonic sensor and GSM module.


Step2: Ultrasonic Sensor Operation:
The ultrasonic sensor continuously emits ultrasonic waves towards the wall or obstacle and measures the time it takes for the waves to bounce back. Based on the time taken for the waves to return, the sensor can calculate the distance between the sensor and the wall or obstacle.


Step3: Monitoring Door Position:
By analyzing the distance readings from the ultrasonic sensor, the system can determine the door's fixed position. This can be achieved by calibrating the system when the door is closed or in its desired position.


Step4: Detecting Door Movement:
While the door is in its fixed position, the system monitors the distance readings from the ultrasonic sensor. f the distance suddenly changes beyond a predefined threshold, indicating movement of the door, the system recognizes it as an unauthorized action.


Step5: Alarm Trigger:
When the system detects unauthorized door movement, it triggers an alarm. This can be accomplished by activating a buzzer, sounding a siren, or any other audio-visual alert mechanism connected to the microcontroller.


Step6: GSM module Communication:
Simultaneously with the alarm activation, the system GSM module to send SMS and call the authorized person.

Step7: Response and Reset:
The authorized person receives the message and can take appropriate action, such as contacting authorities or investigating the situation. After the alarm is triggered and the message is sent, the system may enter a reset state, ready to detect any subsequent door movements.

3. What is Ultrasonic sensor?

An ultrasonic sensor module is a device that uses ultrasonic waves to measure distances and detect objects in its vicinity. It consists of an ultrasonic transducer, which emits ultrasonic waves, and a receiver that detects the waves after they bounce off objects. The module typically includes additional circuitry and components to facilitate its operation.

4. Things that you will get with models: 

1. Detailed Model
2. Well soldered circuits
3. PPT
4. Battery
5. Full setup

5. Project price:

You can buy this project at price 1850 Rs.

You can also customize your project according to your requirement as below:

The price of this projects depend on the component used in the model, for example in the above model the component used is:

1. Arduino UNO
2. Ultrasonic Sensor
3. Battery for power supply
4. LED and resistance
5. Buzzer
6. GSM module
7. Connecting wire
8. other small components

There are some other optional component available that you can remove or add it to the model according to your need, so the price of the project will decrease or increase according to price of component and coding.

In summery, you can tell us what functionalities and components that you want to add or remove from the model, so the price will change accordingly. If you have any question related to this project then contact me:  click here

Basically you will get all this things that required to present this project in front of your external, teacher, for practical use at your home or to show off in front of  your friends 😉😉,so if you want to buy this project then fill this google form:  https://docs.google.com/forms/d/e/1FAIpQLSfDQvyFqN1iDLOFhGNB0KK_nEW1rZujUEdmvNNQNazXK4tAZA/viewform?usp=sf_link


Note: The image shown is a conceptual representation and may not accurately reflect the final design or features of the actual model. The actual model will be developed based on extensive research, engineering, and design processes to ensure optimal performance and user experience.

Feel free to contact me I am always here for you

About Us: click here
Contact Detail:  click here
For delivery detail: click here 
Telegram: https://t.me/arduinoproject1

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