NFC Disc Lock Mechanism With Motorized Contactless Unlocking
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Solution Overview
Problem
Existing disc locks lack the capability to be locked and unlocked via near field communication (NFC).
Innovation Solution
A disc lock mechanism powered by NFC, comprising a lock ring, top and bottom housings forming a lock and antenna chamber, a lock mechanism with a motor, and an antenna system that communicates with the lock mechanism to move between locked and unlocked positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional mechanical locking mechanisms are used, then the lock can be operated manually, but it lacks the capability for remote or contactless operation
Solution Approach 1:
The lock mechanism is designed to accept multiple operating modes: traditional manual operation through the keyhole and modern contactless NFC operation through the antenna system. This multi-functionality allows the same lock to serve both conventional and advanced access needs without requiring separate systems.
Solution Approach 2:
An NFC antenna system serves as an intermediary between the user's mobile device and the lock mechanism. The antenna receives NFC signals and translates them into electrical signals that activate the motor, enabling contactless operation without direct mechanical interaction.
2Adaptability or versatility
If an NFC antenna system is added to enable contactless operation, then remote locking/unlocking is achieved, but the device complexity increases
Solution Approach 1:
The NFC antenna system is integrated within the existing lock housing structure, merging the wireless communication functionality with the mechanical locking system. This consolidation reduces the need for separate components and simplifies the overall device architecture.
Solution Approach 2:
The NFC antenna system replaces the need for physical key insertion and mechanical keyhole interaction with electromagnetic field-based communication. This substitution eliminates wear and tear associated with mechanical key operations while adding contactless functionality.
3Ease of operation
If a motor is added to enable automated locking/unlocking, then convenience is improved, but the manufacturing cost and complexity increase
Solution Approach 1:
The motorized lock mechanism operates automatically based on received NFC signals or manual input, eliminating the need for manual manipulation of locking components. The system self-regulates the locking and unlocking actions through automated motor control.
Solution Approach 2:
The motor replaces manual mechanical manipulation of the locking mechanism with automated electromagnetic-driven motion. This substitution provides consistent, reliable operation while reducing the need for complex mechanical linkages that would require manual adjustment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure and convenient locking and unlocking via NFC, preventing unauthorized access and resisting physical tampering such as bolt cutting.
Implementation Method 1
NFC driven disc lock... powered by near field communication (NFC)... antenna system which is in communication with the lock mechanism
Data Source
AI summary
Described herein is a Near Field Communication disc lock. The disc lock has a near field communication antenna which receives the near field signal to lock or unlock the disc lock. The antenna passes the signal via wires to a near field circuit board which controls the lock motor which turns a lock cam to pressure or release a lock ball. The lock ball triggers the lock ball lever to lock or unlock the lock ring. In this manner, there is now an NFC lock which cannot be cut with bolt cutters.