Stick Controller Three-Axis Acceleration Color Feedback
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Solution Overview
Problem
Conventional stick-shaped display devices change luminous color only based on tilting relative to gravity, making it difficult to determine if a correct hit is administered, as they do not account for movement direction relative to the stick's axis.
Innovation Solution
A controller with a stick-shaped holding member, three-axis acceleration sensors, and multiple light emitters that emit different colors, controlled by a light emission unit to change color based on accelerations along each axis, allowing for intuitive direction and movement feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the display device changes luminous color only based on tilting relative to gravity, then the device structure is simple, but it is difficult to determine if a correct hit is administered
Solution Approach 1:
The patent segments the gravity-based detection into multiple independent acceleration sensors oriented along different axes (vertical, horizontal left-right, horizontal front-back). Each sensor independently measures acceleration in its specific direction, allowing the system to distinguish between tilting and hitting motions while maintaining relatively simple individual sensor structures.
Solution Approach 2:
The patent transitions from one-dimensional gravity-based tilting detection to three-dimensional acceleration detection by adding sensors in multiple spatial dimensions. This dimensional expansion enables the system to detect not only tilting but also hitting motions in various directions, significantly improving hit detection accuracy without excessive complexity increase.
2Loss of information
If multiple light emitters are added to indicate different axes, then the visual feedback capability is improved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by assigning specific light emitters to specific spatial dimensions: one light emitter indicates vertical axis acceleration, another indicates horizontal left-right axis acceleration, and a third indicates horizontal front-back axis acceleration. Each light emitter provides localized visual feedback for its corresponding axis, making the overall system more comprehensible and easier to control despite having multiple components.
Solution Approach 2:
The patent implements visual feedback by having light emitters change color or illuminate based on acceleration detected along each axis. This feedback mechanism provides real-time visual information about the direction and intensity of movements, helping users understand their controller orientation and improve operational accuracy without requiring complex display interfaces.
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 intuitive comprehension of the swing direction and strength by changing color based on the stick's movement relative to its axes, enhancing performance accuracy and providing visual feedback in low-light environments.
Implementation Method 1
an acceleration sensor that obtains accelerations generated in respective directions of three axes that are mutually orthogonal including an axis in the longitudinal direction of the holding member
Implementation Method 2
a plurality of light emitters that are provided on the holding member corresponding to each of the three axes, wherein each light emitter is capable of emitting light in a different light-emitting form
Data Source
AI summary
A stick-type controller 21 comprises an acceleration sensor 61 that obtains acceleration values generated in respective directions of the X-axis, the Y-axis, and the Z-axis, LEDs 64 that emit light corresponding to the acceleration values on the X-axis, the Y-axis, and the Z-axis obtained by the acceleration sensor 61, and a CPU 63 that controls the light emission of the LEDs 64. Further, if the acceleration values obtained by the acceleration sensor 61 are not a value that can be regarded as 0 on at least one axis among the three axes of the X-axis, the Y-axis, and the Z-axis of the stick-type controller 21, the CPU 63 causes the LEDs 64 to emit light in a color corresponding to the axis or axes on which an acceleration value other than a value that can be regarded as 0 was obtained.