Endoscope Light Source Power Mode Control
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Solution Overview
Problem
Endoscope systems face significant power consumption challenges, particularly with light sources, which dominate overall power usage, and existing power-saving methods are inefficient in dynamically adjusting to varying usage scenarios.
Innovation Solution
An observation apparatus with a light source illumination unit that has normal and low power modes, controlled by an estimator and controller based on current usage estimates, to optimize power consumption by switching between modes according to the necessity of illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light source operates in normal electric power mode, then image brightness is maintained, but electric power consumption is high
Solution Approach 1:
The light source illumination unit dynamically switches between normal electric power mode and low electric power mode based on real-time usage estimation. The controller adjusts the operation mode according to whether the endoscope is currently being used for observation, making the system adaptive rather than static.
Solution Approach 2:
The system changes the electric power consumption parameter of the light source based on usage conditions. When usage is estimated as low or zero, the system transitions to low electric power mode with reduced consumption while maintaining sufficient illumination when needed.
2Use of energy by moving object
If the light source operates in low electric power mode, then electric power consumption is reduced, but image brightness may be insufficient
Solution Approach 1:
The estimator continuously monitors and estimates current usage conditions, providing feedback to the controller. This feedback loop enables the system to determine when low power mode is sufficient and when normal power mode should be activated to maintain image quality.
Solution Approach 2:
The system dynamically adjusts power mode based on real-time usage estimation rather than operating at a fixed power level, optimizing the balance between power consumption and image brightness according to actual needs.
3Use of energy by moving object
If pulse lighting is used to save electric power, then power consumption is reduced, but lighting continuity and image quality may be affected
Solution Approach 1:
The system uses periodic pulse lighting during low usage periods to maintain minimal power consumption while periodically illuminating the observation target. This periodic action preserves lighting continuity sufficiently for observation purposes while achieving power savings.
Solution Approach 2:
The lighting mode transitions dynamically between continuous normal power operation and periodic low power operation based on usage estimation, optimizing both lighting continuity and power consumption.
Data Source
AI summary
A light source illumination unit has operation modes including at least a normal electric power mode to operate with first electric power consumption, and a low electric power mode to operate with second electric power consumption lower than the first electric power consumption. A controller selects at least one of the operation modes in accordance with the current usage, and controls the light source illumination unit in accordance with the selected operation mode.