Sliding Camera Module Calibration Using Hall Position Feedback
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Solution Overview
Problem
The challenge is to optimize the screen-to-body ratio of electronic devices by resolving the contradiction between the installation space required for camera modules and the need for improved aesthetics and functionality, particularly in portable devices where the camera module's placement affects the sliding mechanism's accuracy and efficiency.
Innovation Solution
A method and apparatus utilizing a sliding component with a detecting component that includes a magnetic field generating element and Hall elements to calibrate the sliding mechanism, allowing the camera module to slide between positions, thereby optimizing space and improving the screen-to-body ratio by accurately determining the sliding component's position and calibrating detection signal values to ensure reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera module is installed on the front panel to provide front camera service, then the functionality is improved, but the screen-to-body ratio deteriorates due to the installation space occupied
Solution Approach 1:
The camera module is implemented as a sliding component that can dynamically change position between a first position (received in the body, not occupying front panel space) and a second position (exposed from the body, providing camera service). This dynamic positioning resolves the contradiction by allowing the camera to occupy space only when needed.
Solution Approach 2:
Instead of placing the camera module in the traditional front panel plane, the invention utilizes the depth dimension by sliding the camera module in and out of the body. This dimensional transition allows the camera to access front panel space only when required, preserving the screen-to-body ratio when the camera is retracted.
2Ease of operation
If the sliding component slides to precise positions for camera operation, then the functionality is improved, but the accuracy of sliding position detection may deteriorate due to external electromagnetic interference
Solution Approach 1:
The system uses Hall elements to detect the position of the sliding component and provides feedback signals to the processing unit. The processing unit compares detected positions with preset calibration positions and adjusts control signals accordingly, creating a closed-loop feedback system that compensates for electromagnetic interference and maintains positioning accuracy.
Solution Approach 2:
The invention replaces purely mechanical position detection with a magnetic field-based detection system using Hall elements. This substitution provides non-contact detection that is less susceptible to mechanical wear and can be calibrated to compensate for electromagnetic interference, improving overall detection reliability.
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
This solution enhances the accuracy and reliability of the sliding mechanism, allowing for efficient use of space and improving user experience by ensuring the camera module and other components can be seamlessly integrated without compromising the screen-to-body ratio, thus addressing the issue of external electromagnetic interference and ensuring smooth operation.
Implementation Method 1
The detecting component includes a magnetic field generating element, a first Hall element and a second Hall element
Data Source
AI summary
A method for calibrating a sliding of a sliding component includes: obtaining a first detection signal value sent by the first Hall element and a second detection signal value sent by the second Hall element, corresponding to one or more first calibration positions reached during a sliding process of the sliding component; comparing the first detection signal value corresponding to each of the one or more first calibration positions with a preset first reference signal value, and comparing the second detection signal value corresponding to each of the one or more first calibration positions with a preset second reference signal value; and calibrating the first reference signal value based on the first detection signal value, and calibrating the second reference signal value based on the second detection signal value, in response that a number of times that comparison results belong to a preset abnormal range reaches a preset threshold.