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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.

Lock

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.

Cases

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

xiaomi

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

kaadas

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.

lockin

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.

desman
xiaomi
kaadas
lockin
desman

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

Input
Sensor
IR & Depth Sensor (Reusable Receiver)
MIPI
Processing
Image Processing
Image Processing Unit
Grayscale ImageDepth Image
SOC Module
CPU
DetectionAlignmentQuality AssessmentLiveness DetectionFeature ExtractionFeature Retrieval
NPU
Neural Network ProcessingMax 1:N = 100
Output
Interface
Serial Port (UART)Palm Recognition Standard Protocol
Serial Port (UART)Palm Recognition Standard Protocol

Lock Controller Module

Auth Input
NFC Card ReaderKeypad (PIN)Fingerprint Sensor
Connectivity
Motion Sensor (PIR)WiFi ModuleBluetooth (BT) Module
Signal Output
Open SignalMotor Drive
Terminal
Lock Mechanism

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