Endoscope Imaging Voltage Timing Control for Stable Image Quality
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Solution Overview
Problem
Existing endoscope systems face challenges in maintaining an optimal power-supply voltage for imaging elements, leading to inefficiencies due to individual differences in the imaging elements and cables, which affects image quality and requires larger signal lines for voltage transmission.
Innovation Solution
A control device and method that detect the output voltage value of the power-supply voltage, calculate a delay time, and adjust the supply timing to match the voltage fluctuation, allowing for appropriate power-supply voltage adjustment without shifting the timing, thereby reducing the diameter of signal lines and improving image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the power-supply voltage is adjusted to compensate for individual differences in imaging elements and cables, then the image quality improves, but the timing of voltage supply may shift causing instability
Solution Approach 1:
The system detects the actual voltage value at the imaging element and feeds this information back to the control device. Based on this feedback, the control device calculates an appropriate adjustment value and adjusts the power-supply voltage accordingly, while also adjusting the timing to maintain stability.
Solution Approach 2:
The control device calculates the delay time in advance based on the detected voltage value and adjustment value. By determining the appropriate timing adjustment beforehand, the system ensures that the voltage is supplied at the correct moment, preventing timing shifts that would cause instability.
2Reliability
If larger voltage adjustment values are used to compensate for cable losses, then the voltage reaches the imaging element adequately, but the signal line diameter must be increased
Solution Approach 1:
The detection unit measures the actual voltage value at the imaging element, providing feedback on the effectiveness of the voltage adjustment. This allows the control device to optimize the adjustment value, achieving adequate voltage delivery without unnecessarily increasing the signal line diameter.
Solution Approach 2:
The control device dynamically adjusts the power-supply voltage parameter based on the detected voltage value and the characteristics of the cable and imaging element. This parameter optimization allows for adequate voltage delivery while maintaining reasonable signal line dimensions.
3Device complexity
If the voltage adjustment is made without considering delay time, then the control is simpler, but the timing shift causes voltage instability
Solution Approach 1:
The control device calculates the delay time in advance based on the detected voltage value and the adjustment value. By determining the appropriate timing adjustment beforehand, the system maintains voltage stability without adding excessive control complexity during operation.
Solution Approach 2:
The system automatically determines the delay time and adjusts the timing based on the detected voltage characteristics. This self-adjusting mechanism maintains voltage stability without requiring complex external timing control.
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
This solution ensures optimal power-supply voltage adjustment, preventing timing shifts and allowing for efficient operation at appropriate voltage levels, reducing the need for thicker signal lines and enhancing image quality by matching voltage supply with fluctuation timing.
Implementation Method 1
a voltage detector configured to detect an output voltage value of the power-supply voltage supplied by the power source
Data Source
AI summary
A control device includes: a power source configured to supply a predetermined power-supply voltage to an imaging element; a voltage detector configured to detect an output voltage value of the power-supply voltage supplied by the power source; and a processor comprising hardware, the processor being configured to supply an adjusted voltage value from the power source to the imaging element based on a voltage value of the power-supply voltage detected in the imaging element and on the output voltage value detected by the voltage detector, calculate a delay time from timing when the voltage value of the power-supply voltage is detected in the imaging element until timing when the power source supplies the adjusted voltage value to the imaging element, and control supply timing when the power source supplies the adjusted voltage value based on the delay time.