01
RFID card
It verifies the card holder, but not whether the holder is the authorized user.
Palm Vein Locker Key
The problem in locker security is not the key.
The problem in locker security is not the key.
It is user verification.
Cards, PINs and keys can be handed over, lost or exposed. Palmlock directly verifies the user through contactless palm vein authentication for lockers and storage cabinets.
World’s First Palm Vein Locker Lock
Palm vein locker key for lockers and storage cabinets
Contactless palm vein authentication
10–30cm recognition distance
Recognition time within 1 second
Offline standalone operation
NFC/BLE manager app
ProblemConventional locker authentication
Conventional locker authentication
still allows proxy use
The core issue behind locker theft and complaints is not only lost keys. If the system cannot verify the actual user, card handover, shared PINs and master-key risks remain.
Core Question
Is the person opening this locker the authorized user?
02
PIN code
Anyone who knows the number can open it, and PINs can be shared or exposed.
03
Key / master key
Loss, duplication and internal access risks place the burden on operators.
04
Fingerprint
Contact is required, and sweat, moisture or worn skin may affect usability.
05
Face recognition
Locker rooms and changing areas can create privacy and environment concerns.
Solution
Conventional methods verify
Conventional methods verify
the means of access.
Palmlock verifies the actual user.
Cards, PINs and master keys do not directly confirm whether the person opening the locker is the authorized user. Palmlock verifies the registered user through contactless palm vein authentication.
Conventional Methods
Verify the means of access
CardAnyone holding the card can open
PINAnyone who knows the number can open
Master KeyManager intervention and internal risk remain
Palmlock Palm Vein
Verify the authorized user
Palmlock recognizes internal palm vein patterns without contact and verifies the registered user directly.
- No card handover or loss structure
- Reduced PIN sharing risk
- 10–30cm contactless authentication
- Traceable through access logs
Reason Why
Conventional locker locks vs Palmlock
Cards, PINs and keys can grant access, but they do not directly verify the actual user.
| Item | RFID card | Keypad PIN | Key | Palmlock Palm vein |
|---|---|---|---|---|
| Loss, duplication or swap risk | HighCard cloning risk | HighShoulder-surfing risk | PresentCopy or swap possible | NoneNo carried credential |
| Contactless hygiene | X | X | X | O10–30cm contactless authentication |
| Credential sharing prevention | X | X | X | OUser's palm vein authentication |
| Forced opening alarm | X | X | X | OAlarm sound on forced opening |
| Access log and theft tracing | X | X | X | OTraceable through access logs |
| Smartphone app integration | X | X | X | OUser, permission and log management |
Why PalmlockPalm vein technology
Palm vein technology
in a compact locker-key form
Palmlock is not a door access terminal. It is designed as a compact user-verification lock for locker and cabinet doors.
Internal vein pattern
Authenticates users based on internal palm vein patterns, not surface features.
10–30cm distance
Provides a contactless use experience by placing the palm near the device.
Small device footprint
Approx. 74 × 79 × 23mm, designed to sit naturally on locker and cabinet doors.
Standalone operation
The lock operates independently without server or internet connection, while the manager app uses NFC/BLE direct on-site communication for setup and management.
App-based management
Supports user registration, deletion, permission control and emergency operation.
Clean B2B design
Glossy black front and dark metallic housing for premium locker environments.
Public Mode FlowRegister, lock, open and delete
Register, lock, open and delete
in one public-use flow
In public mode, the palm template is used only while the user occupies the locker. When the same palm is authenticated again, the door opens and the temporary template is deleted for the next user.
Palmlock supports public, personal and group modes, allowing facilities to adapt operation from one-time users to fixed users and group-based permission control.
Public Locker Operation
One-time authentication for shared lockers
Palmlock public mode is designed for lockers used by many different users throughout the day.
- First palm authentication = temporary registration + locking
- Same palm re-authentication = verification + opening
- Template is automatically deleted after opening
- Shared lockers can rotate without cards, keys or PINs
Store belongings
The user places belongings in an empty locker or cabinet and closes the door.
Register and lock
The first palm authentication registers a temporary template and locks the door.
Re-authenticate to open
The same palm is authenticated again to verify the user and unlock the door.
Delete template
After opening, the temporary template is deleted and the locker returns to empty status.
Manager AppReplace master cards
Replace master cards
with a smartphone app
Palmlock reduces dependence on RFID master cards or physical manager keys. Authorized staff can manage users, permissions, emergency opening and logs through an on-site smartphone app.
Reduce master-card risk
Reduce the burden of carrying, issuing and recovering physical manager cards.
User and permission control
Register, delete and update users and locker permissions through the app.
Emergency opening
Authorized staff can respond to user issues and exceptional cases through the app.
Log review
Access logs can support tracing in case of theft claims or operational disputes.
ApplicationsPalmlock is not for every locker.
Palmlock is not for every locker.
It is for storage spaces where loss creates responsibility.
Where valuables, critical assets, medicine, samples or tools are stored, the key issue is not only locking the door. It is knowing who opened it.
Premium Golf Club
Premium golf club lockers
Protect lockers that may contain luxury watches, wallets, car keys and jewelry where loss can quickly become a high-value claim.
Premium Fitness / Spa
Hotel and premium fitness lockers
Reduce loss complaints and brand risk in spaces where members store phones, wallets, watches and car keys during workouts or showers.
Medical Check-up
Hospital and check-up storage
Let patients store and retrieve personal belongings through their own authentication instead of staff custody.
Lab / R&D
Lab reagents and samples
For expensive reagents and research samples, not knowing who opened the cabinet can be the bigger issue.
Industrial Assets
High-value tool storage
Record responsible users for precision tools, measuring equipment and mold parts to reduce loss and production delays.
Office / Public Institution
Corporate & Public Staff Lockers
Store employee belongings, work devices and valuables with user verification instead of keys or PINs.
Why Palm VeinPalm vein recognition sees
Palm vein recognition sees
inside the palm, not the surface
Palm vein recognition uses internal vascular patterns. It reduces face-capture concerns and does not require fingerprint contact, enabling user-based locker operation.
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