
Lock
Lock is a palm-based smart lock solution for secure, contactless home access control. With on-device palm scanning recognition, users can unlock doors quickly and privately without keys, passwords, cards or phones. Designed for smart door locks, it delivers fast recognition, strong security and a simple user experience without heavy infrastructure.

Main Features
Highly Accurate Palm Vein Recognition for Smart Door Locks
Zero
False Recognition Reports
No reported false recognitions to date, supporting reliable palm vein smart lock performance in real-world performance.
<0.8s
Recognition Speed
Fast palm scan and recognition, enabling near-instant contactless home access.
5-25cm
Recognition Distance
Flexible palm scanning distance for natural hand placement and everyday smart door lock use.
80,000 Lux
Outdoor Lighting Support
Reliable recognition under strong outdoor lighting conditions.
25° + 360°
Palm Posture Tolerance
Supports 25° left/right tilt and full 360° hand rotation for flexible palm placement.
Advanced Anti-Spoofing
Liveness Detection
Liveness detection helps defend against spoofing attempts such as fake hand models and infrared image attacks.
Secure Biometric Access Control for Smart Door Locks
Challenge
Xiaomi sought a more secure and user-friendly access control system for its flagship smart door locks, reducing reliance on keys, passwords, or phones
Use Case
Users can unlock their doors by raising their hand, creating a seamless and contactless home entry experience
PalmAI Solution
The solution integrates Tencent Cloud's palm vein technology, using palm vein scan recognition to support rapid, secure and contactless door access

Challenge
KAADAS needed a secure and user-friendly biometric access control system for smart door locks, with stronger anti-spoofing protection and reliable recognition performance for everyday home entry
Use Case
Users can unlock their door with a simple palm scan, without relying on keys, passwords, cards, phones or facial recognition cameras
PalmAI Solution
PalmAI provides palm vein recognition technology for smart lock products, using each user's internal palm vein pattern to support fast, contactless, and privacy-focused home access, helping KAADAS improve recognition stability, reduce spoofing risks, and deliver a smoother smart door access experience

Challenge
Lockin needed a secure and reliable biometric access control system for its V5 smart door lock series, with stronger protection against spoofing and replication than traditional access methods
Use Case
Users can unlock their door with a contactless palm vein scan, without relying on keys, passwords, cards, phones, or facial recognition
PalmAI Solution
We provided an ultra-secure palm vein verification for smart door locks, using internal palm vein patterns to support fast, stable, and privacy-focused home access.

Challenge
Desman wanted a secure and convenient biometric access control system for its smart door lock products, with strong privacy protection and reliable performance for everyday home entry
Use Case
Users can unlock Xiaomi M30 and M40 series smart locks with a contactless palm vein scan, without relying on keys, passwords, cards, or devices
PalmAI Solution
PalmAI provided their cutting-edge recognition technology for Desman's smart locks, to support fast, accurate, and privacy-focused door access. The solution helps improve security, reduce replication risks, and deliver a smoother experience.





Solution Architecture
End-to-end palm vein smart lock system — from optical sensing module to lock controller, communicating via standard palm recognition protocol over serial interface.
◉Optical Module
◉Lock Controller Module
