Biometric Lock Enrollment via Encrypted Template Distribution

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Solution Overview

Problem

The process of providing a biometric template to electronic locks for multiple access points is cumbersome for users.

Innovation Solution

A lock system with an electronic locking device that includes a wireless transceiver to receive an encrypted biometric template, a processor to decrypt and store the template, and a mechanism to activate upon matching the input with the template, along with a user device for enrollment and communication with a server for permission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If biometric templates are manually provided to each electronic lock, then access control functionality is achieved, but user convenience deteriorates due to cumbersome enrollment process across multiple locks

Engineering Contradiction:

Improveease of biometric template distributionVSAvoidtime required for enrollment at multiple locks

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

A cloud server acts as an intermediary between the user's mobile device and multiple electronic locks. The server receives the biometric template from the mobile device, verifies it, and then distributes it to multiple locks automatically. This eliminates the need for users to manually enroll at each lock, resolving the contradiction by improving ease of operation while reducing enrollment time.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The biometric template is captured and verified in advance through the mobile device before distribution to multiple locks. The system performs preliminary verification and preparation of the template, then automatically distributes it to all authorized locks. This preliminary action resolves the contradiction by streamlining the enrollment process and reducing the time users spend at each lock.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If biometric templates are distributed across multiple locks, then access management efficiency is improved, but system complexity increases due to template distribution and verification infrastructure

Engineering Contradiction:

Improveaccess management efficiencyVSAvoidcomplexity of template distribution system

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The cloud server serves as a centralized intermediary that manages template distribution, verification, and synchronization across multiple locks. This centralization improves access management efficiency while containing system complexity in a single manageable component rather than distributing complexity across all locks and user devices.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system enables self-service enrollment where users can register their biometric data once through their mobile device, and the system automatically handles distribution to multiple locks. This self-service approach improves productivity by eliminating manual enrollment at each lock while keeping the system relatively simple through automated processes.

Inventive Principle:

Principle #25Self-service

3Reliability

If biometric verification is performed locally at each lock, then security is maintained, but user convenience deteriorates due to need for direct connection between user device and each lock

Engineering Contradiction:

Improvesecurity of access controlVSAvoidease of access process

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The cloud server acts as a trusted intermediary that performs initial biometric verification and template distribution. The locks then perform local verification against the distributed templates, maintaining security while allowing users to access any authorized lock without direct connection to their mobile device. This resolves the contradiction by maintaining security through local verification while improving ease of operation through centralized template management.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12481742B2Locking device biometric access

Publication Date: 2025.11.25 MASTER LOCK CO INC

AI summary

An electronic locking device includes an electronically controllable locking mechanism, a memory, a wireless transceiver configured to communicate wirelessly with a user device to receive an encrypted package containing a biometric template corresponding to an authorized user, and a processor. The processor is configured to decrypt the encrypted package and store the biometric template in the memory, receive a biometric input corresponding to a user attempting to access the electronic locking device, determine if the biometric input matches the biometric template of the authorized user, and activate the electronically controllable locking mechanism in response to a determination that the biometric input matches the biometric template of the authorized user.