Scanning Endoscope Processor Angular Velocity Control
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Solution Overview
Problem
Scanning endoscopes generate excess pixel signals as the emission end moves farther from the center, leading to unnecessary power consumption due to a constant angular velocity and generation cycle, resulting in unused signals.
Innovation Solution
A scanning endoscope processor adjusts the angular velocity and generation cycle based on the distance from the center to maintain a predetermined product, ensuring only necessary pixel signals are generated, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the angular velocity and generation cycle are kept constant, then the emission end can be moved along a spiral course in a stable manner, but the number of generated pixel signals per predetermined area increases as the emission end moves farther from the center, resulting in unnecessary power consumption
Solution Approach 1:
The patent applies dynamics by making the angular velocity and generation cycle variable rather than constant. The controller dynamically adjusts these parameters based on the radial distance of the emission end from the center, allowing the system to adapt to changing conditions during spiral scanning. This resolves the contradiction by enabling stable movement control while optimizing power consumption through conditional parameter adjustment.
Solution Approach 2:
The patent changes the parameters of angular velocity and generation cycle based on the radial position of the emission end. When the emission end is far from the center, the controller reduces the angular velocity or increases the generation cycle to maintain constant pixel signal density. This parameter adaptation eliminates unnecessary signal generation and reduces power consumption while preserving stable scanning operation.
2Ease of operation
If the angular velocity and generation cycle are kept constant, then the control remains easy, but more pixel signals than required are generated and must be deleted without being used
Solution Approach 1:
The patent implements feedback control where the controller continuously monitors the radial distance of the emission end from the center during spiral scanning. Based on this feedback information, the controller adjusts the angular velocity and generation cycle to maintain optimal pixel signal density. This feedback mechanism automates the parameter adjustment process, maintaining ease of operation while eliminating wasteful signal generation.
3Stability of the object's composition
If the emission end is moved along a spiral course with constant angular velocity, then stable scanning is achieved, but pixel signal density varies with distance from the center
Solution Approach 1:
The patent applies local quality by making the scanning parameters (angular velocity and generation cycle) dependent on the local radial position of the emission end. Different regions of the scanning area receive different parameter settings: outer regions (far from center) use lower angular velocity or longer generation cycles, while inner regions use higher angular velocity or shorter generation cycles. This local adaptation ensures uniform pixel signal density across the entire observation area while maintaining stable spiral scanning operation.
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 adjustment maintains consistent pixel signal density across the observation area, reducing power consumption by eliminating the generation of unnecessary signals.
Implementation Method 1
The photoelectric converter receives light transmitted from the second transmitter and generates a pixel signal according to the amount of light received
Data Source
AI summary
A scanning endoscope processor, comprising a photoelectric converter and a controller, is provided. The scanning endoscope processor controls a scanning endoscope having first and second transmitters and an actuator. The photoelectric converter receives light transmitted from the second transmitter and generates a pixel signal according to the amount of light received. The second transmitter transmits reflected light and/or fluorescence from a point within an observation area illuminated by the light emitted from a first emission end. The first transmitter emits the light as a beam from the first emission end. The actuator moves the first emission end along a spiral course. The controller adjusts at least one of a first angular velocity and a generation cycle so that the product of the first angular velocity, the generation cycle, and a first distance is within a predetermined range.