SECURITY DOOR SYSTEM USING FINGERPRINT RECOGNITION TECHNOLOGY
SECURITY DOOR SYSTEM USING FINGERPRINT RECOGNITION TECHNOLOGY – BY PRINCE NWANKWO (WINNER: INVENTORS AWARD OF THE YEAR 2022 IN NIGERIA)
A. Project Overview: In today’s security-conscious world, traditional locking systems based on physical keys or passcodes are increasingly vulnerable to loss, theft, or unauthorized duplication. This innovation presents a modern, intelligent, and secure solution: a Biometric Security Door System powered by Fingerprint Recognition Technology. The system grants access exclusively to individuals whose fingerprints have been previously stored in the device’s database. By simply placing a finger on the biometric scanner, authorized users can instantly unlock the door, eliminating the hassle of carrying keys, memorizing PINs, or managing access cards. At the core of the design is a fingerprint module from Mixes Biometrics, capable of storing up to 750 unique fingerprint templates. The module works in tandem with an AT89C52 microcontroller, which facilitates communication between the sensor and the door mechanism
B. How It Works:
- Fingerprint Capture: The user places a finger on the scanner.
- Digital Conversion & Processing: The scanner captures the fingerprint image and converts it into digital form.
- Feature Extraction: A Digital Signal Processor (DSP) analyzes and extracts the unique ridge patterns and minutiae points to generate a unique digital code.
- Matching Process: The system compares the newly generated code against stored templates in the fingerprint database.
- Access Decision: If a match is found, the door is automatically unlocked. Otherwise, access is denied and a buzzer alerts the user.
Unlike conventional systems, this solution ensures high accuracy and security, using only unique biological traits that cannot be easily forged or duplicated.
C. Key Components:
- Fingerprint Scanner (Mixes Biometrics)
- AT89C52 Microcontroller
- LCD Display Unit – to provide system status and user prompts
- Power Supply Unit
- Buzzer Unit – for unauthorized access alerts
- Output Unit (Electronic Door Lock Mechanism)
D. Primary Sustainable Development Goals (SDGs) Addressed by the Project
1. SDG 9 – Industry, Innovation and Infrastructure
Through the implementation of biometric technology and embedded systems, the project encourages innovation within the security sector. It encourages the implementation of cutting-edge, sustainable, and secure infrastructure for buildings and facilities that need smart access control.
2. SDG 11 – Sustainable Cities and Communities
Securing domestic and public facilities helps to make human settlements and cities safe, resilient, inclusive, and sustainable. The system is highly effective in urban areas with increasing needs to secure themselves from theft, intrusion, and unauthorized entry.
3. SDG 16 – Peace, Justice, and Strong Institutions
The system plays a direct role in creating safe spaces through the avoidance of unauthorized access, thus guaranteeing peace and secure living for institutions, homes, and businesses.
E. Impact and Relevance: Fingerprint Recognition Technology-based Security Door System is an efficient and secure access control solution. The system offers security with augmented protection by offering door access to authorized persons through their individual biometric information. This excludes lost keys, stolen access cards, or shared PINs risks. Perfect for residential, commercial, and sensitive buildings, the system boasts advanced infrastructure with smart automation and real-time alerts. The installation of the system minimizes the risk of unauthorized entry, theft, and intrusions, ensuring secure living and working conditions.
