Display Device with External Posture Detection for User-Centric Interface Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional personal digital assistants fail to accurately detect and adapt to both the device's attitude and the user's posture, leading to inconvenient user interface changes when the device is used in positions other than standing or sitting upright.
Innovation Solution
An information processing apparatus with a communication interface connected to an external posture detecting device, including a display that rotates its image based on posture information received from the device, utilizing a combination of triaxial geomagnetic and acceleration sensors to determine the user's orientation and control the display interface accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only device attitude detection is used to control the display interface, then the display can adapt to device orientation, but it cannot accurately adapt to user posture changes
Solution Approach 1:
The solution segments the detection function by using separate sensors for device attitude (acceleration sensor in display device) and user posture (geomagnetic sensor in headphone). This segmentation allows each sensor to specialize in detecting its specific parameter, improving overall measurement precision while maintaining system adaptability.
Solution Approach 2:
The headphone serves as an intermediary carrier that integrates the geomagnetic sensor to detect user posture. Since the headphone is worn close to the user's head, it acts as an ideal intermediary to accurately capture user orientation without interfering with the display device's own sensors.
2Ease of operation
If the display rotates based on device attitude only, then the display adapts to device orientation, but the user interface becomes inconvenient when user posture changes
Solution Approach 1:
The system implements feedback by continuously monitoring both device attitude and user posture, then adjusting the display rotation accordingly. The control unit receives real-time data from both sensors and dynamically adjusts the display orientation to maintain optimal usability across different posture-position combinations.
Solution Approach 2:
The display rotation angle is made dynamic rather than fixed, adjusting in real-time based on the combination of device attitude and user posture. This dynamic adjustment allows the system to adapt to various usage scenarios such as holding the device horizontally while lying down, or vertically while sitting upright.
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 a more suitable and user-friendly display interface by accurately accounting for both the device's attitude and the user's posture, ensuring the display is always upright and usable in various positions.
Implementation Method 1
detects a gravity direction using an acceleration sensor
Implementation Method 2
detects a bearing where the external posture detecting unit faces on a horizontal plane using a geomagnetic sensor
Data Source
AI summary
An information processing apparatus including a communication interface configured to be connected to an external posture detecting device to be worn by a user; a display configured to rotatably display a display image; and circuitry configured to control a rotation angle of the image displayed by the display based on posture information received from the external posture detecting device.