Two-Wheeler Lock 3D Magnetic Sensor Manipulation Detection
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Solution Overview
Problem
Two-wheeler locks, especially those partly drivable by motor, face challenges in reliably detecting manipulation attempts and irregular movements, as conventional sensors can only differentiate between presence or absence of positions and fail to detect deviations from expected movement paths or external magnetic interference.
Innovation Solution
A two-wheeler lock equipped with a three-dimensional magnetic sensor that detects the position and orientation of permanent magnets, allowing for more nuanced position tracking and detection of irregular movements or external magnetic interference, coupled with an evaluation apparatus to determine manipulation attempts and trigger alarms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional magnetic sensor is used to detect the position of movable elements, then the lock can differentiate between presence or absence of positions, but it cannot detect deviations from expected movement paths or external magnetic interference
Solution Approach 1:
The patent transitions from conventional one-dimensional magnetic sensors that only detect presence/absence to three-dimensional magnetic sensors that detect position and orientation in space. This dimensional expansion enables the sensor to detect deviations from expected movement paths and external magnetic interference by monitoring changes in magnetic field vectors across multiple axes, thereby simultaneously improving measurement precision and manipulation detection reliability.
2Reliability
If a three-dimensional magnetic sensor is used to detect manipulation attempts, then security against unauthorized access is improved, but the device complexity increases
Solution Approach 1:
The three-dimensional magnetic sensor is designed to perform multiple functions: detecting the position of movable elements along their movement paths, monitoring orientation changes, and identifying external magnetic interference. By consolidating these detection tasks into a single multi-functional sensor rather than using separate sensors for each function, the patent improves security against manipulation attempts while minimizing the increase in device complexity.
3Extent of automation
If conventional sensors are used in motorized locks, then the lock can operate automatically, but it cannot reliably detect irregular movements or external magnetic interference
Solution Approach 1:
The patent implements a feedback mechanism where the three-dimensional magnetic sensor continuously monitors the position and orientation of movable elements during motorized operation. The sensor data is fed back to the control system, which compares actual movement trajectories against expected paths. When deviations are detected, the system can trigger alarm signals or prevent unauthorized operations, thereby enabling reliable detection of irregular movements while maintaining full motorized automation capability.
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
Enhances security against unauthorized access by accurately distinguishing regular from irregular movements and external manipulation attempts, providing improved reliability and alert mechanisms to counteract potential breaches.
Implementation Method 1
The sensor is configured for a three-dimensional magnetic detection to detect positions of the movable element differing from the defined movement path and/or manipulation attempts carried out by means of external magnets
Data Source
AI summary
A two-wheeler lock, in particular a frame lock, wherein the lock is preferably at least partly drivable in a motorized manner, comprises a sensor for detecting different positions of an element of the lock movable along a defined movement path. The movable element here has a permanent magnet and the sensor is configured as a magnetic sensor. This magnetic sensor is furthermore configured for a three-dimensional magnetic detection to detect positions or movements of the movable element deviating from the defined movement path and/or to detect manipulation attempts by means of external magnets.