Illumination Control with Coarse-to-Fine Diffusion Adjustment
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Solution Overview
Problem
Conventional illumination devices face difficulties in achieving fine adjustment of light diffusion due to fluctuations in touch detection positions, making it challenging to control the diffusion degree accurately.
Innovation Solution
A control device with a touch sensor and display panel that allows for adjusting the diffusion degree of light in two directions by providing an adjustment screen and adjusting the diffusion in steps based on a defined interval, using a touch detection position to fine-tune the light distribution shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional touch detection method is used to adjust diffusion degree, then adjustment operation is simple, but adjustment precision is poor due to fluctuations in touch detection position
Solution Approach 1:
The adjustment region is divided into multiple detection elements arranged in the first direction. Each detection element corresponds to a specific diffusion degree value, segmenting the continuous adjustment range into discrete controllable units. This segmentation allows precise control by mapping touch position to specific diffusion degree values, resolving the precision issue while maintaining operational simplicity.
Solution Approach 2:
A display panel is introduced as an intermediary between the touch sensor and the adjustment result. The display panel visually indicates the current diffusion degree and the effect of touch input, providing feedback that helps users understand the adjustment outcome. This intermediary improves measurement precision by making the touch detection position and its correspondence to diffusion degree visible and interpretable.
2Productivity
If large adjustment interval is used for diffusion degree, then adjustment speed is fast, but adjustment precision is insufficient for fine tuning
Solution Approach 1:
The adjustment interval is made dynamic rather than fixed. When the current diffusion degree is far from the target value, a larger adjustment interval (first adjustment interval) is used for fast adjustment. When the current diffusion degree approaches the target value, a smaller adjustment interval (second adjustment interval) is automatically applied for fine tuning. This dynamic adjustment strategy resolves the contradiction between adjustment speed and precision.
Solution Approach 2:
The adjustment interval parameter is changed based on the difference between target and current diffusion degrees. The control device automatically switches between first adjustment interval and second adjustment interval according to the adjustment progress. This parameter change enables fast initial adjustment followed by precise fine-tuning, simultaneously achieving high productivity and high precision.
Data Source
AI summary
According to an aspect, a control device for an illumination device is configured to control illumination devices and includes: a touch sensor having a detection region; and a display panel provided with a display region and configured to display an adjustment screen. The adjustment screen has an adjustment region for adjusting a diffusion degree of each illumination device. When a difference between a target diffusion degree defined by a touch detection position in the adjustment region and a current diffusion degree of the illumination device is equal to or larger than a first adjustment interval, the diffusion degree of the illumination device is adjusted in steps of the first adjustment interval. When the difference between the target diffusion degree and the current diffusion degree is smaller than the first adjustment interval, the diffusion degree is adjusted in steps of a second adjustment interval smaller than the first adjustment interval.