Hall Sensor Array for Flip Cover Horizontal Sliding Detection
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Solution Overview
Problem
Existing sensing systems, such as those using magnetic sensors, are limited in detecting horizontal sliding motions of flip covers on terminal devices, failing to accurately differentiate between horizontal and vertical movements.
Innovation Solution
A method employing Hall elements arranged on a terminal device to measure and compare magnetic field strengths, using similarity and standard deviation thresholds to determine if a horizontal sliding of a flip cover has occurred, involving grouping of Hall elements and a determination unit to assess these parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a magnetic sensor is used to detect flip cover movements, then the sensing system can detect magnetic field changes, but it cannot accurately differentiate between horizontal and vertical movements
Solution Approach 1:
The patent divides the sensing system into multiple Hall elements arranged in specific patterns (e.g., first and second Hall elements for vertical detection, third and fourth Hall elements for horizontal detection). Each element or group detects specific movement components, enabling the system to differentiate between horizontal and vertical movements through segmented measurement channels.
Solution Approach 2:
The patent extends the sensing capability from one-dimensional (vertical only) to two-dimensional detection by adding Hall elements arranged in multiple dimensions. The system uses magnetic field strength comparisons along different spatial arrangements to detect both vertical opening/closing and horizontal sliding movements simultaneously.
2Measurement precision
If multiple Hall elements are arranged to detect horizontal sliding, then the sensing accuracy for horizontal movements improves, but the device complexity increases
Solution Approach 1:
The patent places Hall elements at specific locations with particular orientations to detect specific movement components. Each Hall element is positioned and oriented to optimize detection of particular movement types (vertical or horizontal), creating local sensing zones with specialized detection capabilities rather than using a uniform sensor array.
Solution Approach 2:
The Hall elements serve multiple functions: they detect both vertical opening/closing movements and horizontal sliding movements depending on their arrangement and the comparison method used. The same set of Hall elements can determine different movement types by comparing magnetic field strengths in different configurations, reducing the need for separate sensor systems.
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
Accurately detects horizontal sliding of a flip cover by analyzing magnetic field strength similarity and standard deviation, enhancing the capability to distinguish between horizontal and vertical movements, thereby improving the sensing accuracy of flip cover operations.
Implementation Method 1
measuring, using the one or more Hall elements, magnetic field strength generated by the magnetic field source
Data Source
AI summary
A method of sensing a sliding by a sensor including grouping one or more Hall elements into one or more groups, measuring magnetic field strength generated by a magnetic field source, and comparing the magnetic field strength at the one or more Hall elements to determine whether a horizontal sliding occurs.