Electromagnetic Padlock Status Verification Using Magnetic Flux Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electromechanical padlocks face limitations in safety and security due to their design, particularly in situations where access is difficult or unauthorized access needs to be prevented.
Innovation Solution
A padlock arrangement with a handheld unit containing a magnet movably connected to the lock fitting, which generates verification data via a magnetic sensor to ensure the padlock is locked and located correctly, allowing for dual security levels and easier access in tight spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional electromechanical padlocks are used, then basic locking function is provided, but security and safety requirements cannot be met due to lack of status verification
Solution Approach 1:
A handheld unit with a magnet serves as an intermediary between the padlock and the locking mechanism. The magnet detects the lock position through the housing and enables verification that the padlock is correctly locked, providing enhanced security without requiring complex internal modifications to the padlock structure.
Solution Approach 2:
The patent replaces traditional mechanical status indication mechanisms with a magnetic detection system. The magnetic sensor detects the position of the lock core through the housing material, substituting complex mechanical linkages and status indicators with a simpler magnetic field-based detection system.
2Reliability
If padlock is placed in tight spaces for secure locking, then security is improved, but access for locking becomes difficult
Solution Approach 1:
The handheld unit acts as a mediator that allows the user to verify locking status without needing direct access to internal mechanisms. The magnet in the handheld unit detects lock position through the housing, enabling users to confirm proper locking even when the padlock is in hard-to-reach locations.
Solution Approach 2:
The system provides immediate feedback through the handheld unit when the padlock is correctly locked. The magnet detects the lock position and provides verification data, giving users real-time confirmation that the padlock is securely locked without requiring visual inspection or manual verification of internal components.
3Measurement precision
If magnetic sensor is arranged to rotate with the core, then lock position detection is enabled, but the detection system becomes more complex
Solution Approach 1:
The patent replaces complex mechanical position detection mechanisms with a magnetic sensing system. The magnetic sensor detects the position of the lock core by sensing changes in magnetic flux from the handheld magnet, eliminating the need for mechanical linkages, switches, or optical encoders that would increase complexity.
Solution Approach 2:
The magnetic detection system serves multiple functions: it detects lock position, verifies proper locking, and provides feedback to the user. This single detection mechanism replaces what would otherwise require multiple separate mechanical sensors and indicators, reducing overall system complexity while maintaining high measurement precision.
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
The solution provides enhanced security by ensuring the padlock is correctly locked and located, with verification data stored in an electronic key, and includes features for alerting users to incorrect locking procedures, enhancing usability and security.
Implementation Method 1
the position detecting device being arranged to detect at least the lock position of the rotatable core in response to the magnetic sensor detecting a first magnetic flux from the magnet of the attached handheld unit
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
An arrangement and a method for an electromagnetic padlock (10) are disclosed. A handheld unit (30), which is movably connected via a connector member to a lock fitting (50) to be locked by a padlock (10), is removably attached to a padlock (10) during unlocking and locking. When the padlock (10) is unlocked, a magnetic sensor (24) arranged inside the padlock (10) is detects a change in detected magnetic flux from the attached magnet (31). In response thereto, the padlock (10) generates verification data which is sent to the electronic key as a verification that the padlock has both been locked and locked at a correct location. Incorrect locking procedure, or locking at incorrect locations may generate warnings.