Body-Mounted Display Control Device for Seamless Image Switching
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Solution Overview
Problem
Existing display technologies do not allow for seamless switching among images on a display device in response to the movement of a human body, leading to discontinuous transitions and limited user interaction.
Innovation Solution
A display control device and method that utilizes an acceleration device and gyroscope to detect movement and orientation, enabling the display device to switch among multiple images seamlessly and independently, allowing for natural physical interactions such as map viewing and sky information display based on body movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If image switching is performed based on acceleration detection, then user interaction becomes more natural and hands-free operation is enabled, but unnecessary image changes due to unintentional movements may occur
Solution Approach 1:
The system dynamically adjusts the acceleration threshold based on the current display state and movement patterns. When a map is displayed, the threshold for switching to sky information is set higher to prevent accidental switches during normal map viewing, while still allowing intentional switches when the user looks up. This dynamic adjustment resolves the contradiction by making the system both responsive to intentional actions and resistant to unintentional ones.
Solution Approach 2:
The system incorporates feedback mechanisms where the detected acceleration is continuously monitored and compared against dynamically adjusted thresholds. The system learns from user behavior patterns and adjusts its sensitivity accordingly, providing feedback loops that prevent unnecessary image changes while maintaining natural hands-free operation. This feedback mechanism ensures that only significant, intentional movements trigger image switching.
2Ease of operation
If multiple images are switched seamlessly based on body movement, then user experience is enhanced, but device complexity increases due to multiple sensors and processing requirements
Solution Approach 1:
The patent employs a universal coordinate system that can represent both map views and sky information in a unified mathematical framework. This coordinate system serves multiple functions: it handles 2D map coordinates, 3D sky positions, and the transitions between them using the same transformation algorithms. By making the coordinate system multi-functional, the system avoids needing separate processing pipelines for different display modes, thereby reducing overall device complexity while maintaining seamless switching capability.
Solution Approach 2:
The system manages complexity by dynamically changing parameters such as the active coordinate system type, threshold values, and display orientation based on the current state rather than maintaining all processing capabilities simultaneously. When in map mode, the system uses 2D coordinate parameters; when transitioning to sky information, it switches to 3D spherical coordinates. This parameter-based state management allows seamless transitions without requiring the device to maintain complex processing capabilities for all modes at once.
3Measurement precision
If image switching responds to subtle body movements, then interaction precision is improved, but sensitivity to unintentional movements increases
Solution Approach 1:
The acceleration threshold is not a fixed value but dynamically adjusts based on the current display mode and detected movement patterns. For map display, the threshold is set to filter out minor vibrations and unintentional movements. For sky information display, the threshold adjusts to be more sensitive to upward head movements. This dynamic thresholding maintains high measurement precision while preventing false triggering in different operational contexts.
Solution Approach 2:
The system intentionally uses partial action by not responding to all detected movements, only those exceeding the dynamically adjusted threshold. This selective response strategy means that while the system is precise in detecting movements, it deliberately ignores subtle movements that fall below the threshold, thereby maintaining precision without the corresponding increase in false positives. The threshold acts as a filter that accepts only significant movements.
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 smooth, continuous image transitions and accurate image switching based on user movement, providing a natural interaction experience and preventing unnecessary image changes due to unintentional movements, while allowing hands-free phone calls.
Implementation Method 1
an acceleration device that detects acceleration
Implementation Method 2
switching among a plurality of images in accordance with at least any of acceleration detected by the acceleration device, a horizontal direction angle, and a vertical direction angle
Data Source
AI summary
Provided are a display control device attachable to a human body, a display control program, and a display control method capable of performing switching among images displayed on a display device along with movement of the human body. The attachment device according to the present invention is attachable to the human body, and includes: an acceleration device that detects acceleration; and a display device capable of switchingly displaying different images. The display device performs switching among a plurality of images in accordance with the acceleration that is detected by the acceleration device. In this case, the switching among the images displayed on the display device can be performed along with the movement of the human body.