Folding Screen Magnetic Field Detection with Dual Modules
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Solution Overview
Problem
Folding screen devices face challenges in accurately detecting magnetic fields due to varying orientations and electrification states when folded and unfolded, leading to inconsistent magnetic field detection.
Innovation Solution
The implementation of a folding screen device with dual geomagnetic modules and acceleration gyro sensors, where the CPU controls the power supply and operation of each module based on the device's status, ensuring accurate magnetic field detection across different configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single geomagnetic module is used in folding screen device, then device complexity is reduced, but measurement precision deteriorates due to varying orientations when folded and unfolded
Solution Approach 1:
The folding screen device is divided into separate body parts (first body and second body), with geomagnetic modules strategically placed in each body. This segmentation allows each module to maintain a consistent orientation relative to its local body, ensuring accurate magnetic field detection regardless of the overall folding state of the device.
Solution Approach 2:
Different geomagnetic modules are positioned in different bodies of the folding screen device, with each module having a predetermined orientation optimized for its local context. This local quality approach ensures that each module maintains accurate detection capability in its specific operational context, whether the device is folded or unfolded.
2Adaptability or versatility
If geomagnetic module orientation is fixed during manufacturing, then manufacturing precision is improved, but adaptability deteriorates when device folding state changes
Solution Approach 1:
By dividing the device into separate bodies with independent geomagnetic modules, the system achieves adaptability to different folding states without requiring complex real-time orientation adjustments. Each module's fixed local orientation combined with its specific placement in a particular body allows the system to adapt to various configurations.
Solution Approach 2:
The geomagnetic modules are pre-positioned in specific bodies with predetermined orientations during manufacturing. This preliminary action ensures that regardless of the device's folding state, at least one module will be in an optimal orientation for accurate magnetic field detection, eliminating the need for complex runtime calibration.
3Use of energy by moving object
If CPU controls power supply to geomagnetic modules based on body status, then use of energy is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The CPU periodically determines the body status (folded or unfolded) and accordingly controls the power supply to the first and second geomagnetic modules. This periodic action allows the system to switch between different power consumption modes based on the current operational state, reducing overall energy usage while maintaining detection accuracy when needed.
Solution Approach 2:
The system uses its own body status information (already known from other sensors or system state) to automatically control the power supply to geomagnetic modules. This self-service approach allows the CPU to make intelligent power management decisions without requiring external input or complex additional control mechanisms.
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 the folding screen device to consistently and accurately detect magnetic fields in various working statuses by determining the appropriate geomagnetic module for power supply and operation, enhancing orientation and navigation capabilities.
Implementation Method 1
a first acceleration gyro sensor and a second acceleration gyro sensor, configured to obtain a body status of the folding screen device
Implementation Method 2
a first acceleration gyro sensor and a second acceleration gyro sensor, configured to obtain a body status of the folding screen device
Implementation Method 3
a first geomagnetic module and a second geomagnetic module... determining, from the first geomagnetic module and the second geomagnetic module, a target geomagnetic module for receiving power according to the power supply mode; controlling the target geomagnetic module to detect a magnetic field environment
Data Source
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AI summary
The present disclosure relates to a folding screen device and a magnetic-field detecting method implemented thereby, and belongs to the field of folding screen technology. The folding screen device includes a first body (501, 601), a second body (502, 602), a central processing unit (CPU) (503, 603), a first acceleration gyro sensor (506, 606), a second acceleration gyro sensor (507, 607), a first geomagnetic module (504, 604) and a second geomagnetic module (505, 605). The first acceleration gyro sensor (506, 606) and the second acceleration gyro sensor (507, 607) are configured to obtain a body status of the folding screen device. The CPU (503, 603) is configured to control working statuses of the first geomagnetic module (504, 604) and the second geomagnetic module (507, 607) according to the body status.