Smart Door Lock Dual-Camera Facial Recognition Module Selection Guide
This high-performance dual-camera facial recognition module is specifically designed for smart door locks and access control systems. Combining optimized hardware architecture with proprietary algorithm technology, it delivers comprehensive performance—high security, high adaptability, and low power consumption—within a compact form factor. It is widely applicable to smart locks, safes, cabinet access control systems, and other scenarios both domestically and internationally.
I. Module Structure and Electrical Characteristics
Compact Structure, High Integration:
Featuring a dual-camera co-substrate design, the module measures just 40.0mm × 15.0mm × 8.3mm with an 18mm baseline distance. This facilitates seamless integration into various smart door locks, offering strong adaptability and flexible installation.
Simple Interface, Plug-and-Play:
Communication Interface: Supports UART serial communication with 3.3V TTL levels and 115200 bps baud rate. Simple wiring compatible with most host controllers.
Power Supply Range: Operating voltage 4.5V–14V, compatible with various lock power designs.
Total Power Consumption: Below 3.5W, energy-efficient and environmentally friendly, suitable for battery-powered scenarios.
II. Recognition Performance and Applicability
Imaging Capability and Recognition Range:
Built-in 2MP (1600×1200) infrared camera supports an effective recognition range of 40cm to 100cm, adapting to different installation heights to ensure stable and clear recognition.
Broad User Coverage:
Height range: Supports users between 130cm and 200cm tall when the lock body is installed at 120cm height with a 15° tilt angle.
Age Adaptability: Recognizes individuals up to 75 years old, accommodating users across all age groups.
Decorative Tolerance: Supports common scenarios such as wearing glasses, hats, sunglasses, facial hair, or makeup without affecting recognition.
Robust Environmental Adaptability: Maintains stable recognition performance indoors, outdoors, under low light, strong light, or even backlight conditions, achieving true “light-environment independence.”
III. Algorithm Performance & Security Level
Liveness Detection, Secure & Reliable:
Features proprietary dual-camera liveness detection algorithm, effectively countering attacks via photos, videos, masks, etc. False acceptance rate (FAR) below 1 in 1 million, delivering financial-grade security protection.
High Recognition Efficiency: False Rejection Rate (FRR) <1%, ensuring high accuracy and smooth user experience.
Rapid Activation: Cold boot time of approximately 1.1 seconds ensures prompt response.
Face Database Capacity: Supports storage of 100 facial IDs, suitable for home and office applications.
IV. Application Recommendations and Integration Support
Recommended Application Scenarios:
Premium residential smart door locks
Office building/campus access control systems
Financial safes, smart storage lockers
High-security IoT identity authentication terminals
Integration Recommendations:
Mount the module at a height of 1.1m–1.3m with a tilt angle of 10°–20° for optimal recognition coverage.
Compatible with 850nm/940nm infrared illuminators to enhance low-light performance.
Provides standard UART communication protocol and SDK for rapid integration with Android, Linux, FreeRTOS, and other platforms.
