Bolt Actuation Assembly With Dual Magnetic Handedness Sensing
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Solution Overview
Problem
Certain electronic locksets face issues with sensing fidelity and inability to be installed in different handing orientations, necessitating improvements in electronic bolt retraction mechanisms.
Innovation Solution
The lockset incorporates a bolt, an output gear with a magnet, and first and second magnetic sensors to determine the gear's position based on the device's handedness, allowing installation in both left- and right-handed doors by using different magnetic sensors for each configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single magnetic sensor is used to detect the output gear position, then the device complexity is reduced, but the adaptability to different handing orientations is lost
Solution Approach 1:
The patent implements universality by providing two magnetic sensors that can detect the output gear position in different handing configurations. The system automatically selects which sensor to use based on the detected handedness, allowing the same lockset to function correctly in both left-handed and right-handed door installations without requiring different hardware configurations.
Solution Approach 2:
The patent applies dynamics by making the sensor selection adaptive rather than fixed. The controller dynamically determines which magnetic sensor to use based on the real-time detection of handedness, allowing the system to flexibly adapt its sensing configuration to match the installation orientation without requiring manual reconfiguration or physical rearrangement of components.
2Measurement precision
If the magnetic sensor position is fixed relative to the housing, then the manufacturing precision is improved, but the sensing fidelity in different handedness configurations deteriorates
Solution Approach 1:
The patent implements asymmetry by positioning two magnetic sensors at different locations relative to the housing, specifically at positions that correspond to the output gear's home position in different handedness configurations. This asymmetric arrangement allows each sensor to be optimally positioned for its corresponding configuration, maintaining high sensing fidelity while accommodating both left-handed and right-handed installations.
3Adaptability or versatility
If the output gear home position varies with handedness, then the adaptability to different configurations is improved, but the device complexity increases due to additional sensing requirements
Solution Approach 1:
The patent applies feedback by using the magnetic sensors to detect the position of the output gear and provide this information back to the controller. The controller uses this feedback to determine the handedness configuration and automatically adjust its operation accordingly, enabling the system to adapt to different configurations through intelligent control rather than complex mechanical adjustments.
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 reliable sensing and installation flexibility, ensuring accurate bolt operation and user interface consistency regardless of door handing, enhancing user experience and functionality.
Implementation Method 1
a first magnetic sensor and a second magnetic sensor spaced apart from one another. The controller is selectively operable to determine a position of the output gear via one of the first magnetic sensor or the second magnetic sensor
Data Source
AI summary
An exemplary method includes operating an access control device including a bolt, an output gear having a magnet mounted thereon, a first magnetic sensor, and a second magnetic sensor. The method generally includes selectively determining a position of the output gear via one of the first magnetic sensor or the second magnetic sensor based upon a current handedness of the access control device. With the access control device in a first handing configuration, the first magnetic sensor may be used to a first handedness first home position of the output gear. With the access control device in a second handing configuration, the second magnetic sensor may be utilized to detect a second handedness first home position of the output gear