Imaging Servo Parameter Switching for Mode-Specific Control
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Solution Overview
Problem
Existing imaging systems face challenges in optimizing servo control systems for different modes of operation, such as focus model generation and sequencing, which require distinct actuation methods, leading to inefficiencies and reduced throughput due to the need for manual parameter adjustments and system halts during mode changes.
Innovation Solution
Implementing a servo control system that can detect the current mode of operation in real-time and automatically switch between optimized sets of control parameters, including servo loop gains and filter values, to optimize actuator control for each mode, enabling continuous operation without halting the imaging system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual parameter adjustments are made during mode changes, then control precision can be optimized for each mode, but system productivity decreases due to halts and time-consuming adjustments
Solution Approach 1:
The system dynamically switches between different sets of control parameters based on the current mode of operation. A mode detection circuit identifies whether the system is in focus model generation mode or sequencing mode, and a parameter selection circuit automatically selects the appropriate parameter set (first set for focus mode, second set for sequencing mode), enabling the control system to adapt in real-time without manual intervention or system halts
Solution Approach 2:
The invention changes control parameters automatically based on operational mode. Different sets of parameters (servo loop gains, filter values) are stored and selected according to the detected mode, allowing the system to optimize control precision for each mode while maintaining continuous operation and high throughput
2Ease of operation
If a single set of control parameters is used for all modes, then system operation is simplified, but control precision deteriorates for mode-specific optimization
Solution Approach 1:
The control system is designed with multi-functionality to handle different operational modes. The parameter selection circuit can switch between multiple parameter sets (first set optimized for focus model generation, second set optimized for sequencing), allowing a single control system to perform multiple functions with mode-specific optimization while maintaining ease of operation through automatic selection
Solution Approach 2:
The system incorporates a mode detection circuit that provides feedback about the current operational mode to the parameter selection circuit. This feedback mechanism enables automatic selection of the appropriate parameter set based on the detected mode, maintaining both ease of operation and mode-specific control precision
3Productivity
If real-time parameter switching is implemented, then system productivity is maintained during mode changes, but device complexity increases due to additional control circuits
Solution Approach 1:
The control system is segmented into distinct functional modules: a mode detection circuit that identifies the current operational mode, a parameter selection circuit that chooses the appropriate parameter set, and storage for multiple parameter sets. This segmentation allows real-time parameter switching to maintain productivity while organizing the added complexity into manageable, specialized components
Data Source
AI summary
An imaging system may include a sample stage having a surface to support a sample to be scanned by the imaging system; an optical stage having an objective lens, the optical stage being positionable relative to the sample stage; an actuator physically coupled to at least one of the sample stage and the optical stage to move the sample stage relative to the optical stage; a servo circuit to control the actuator; a first set of control parameters to control the servo circuit; a second set of control parameters to control the servo circuit; and a servo control circuit to apply the first set of control parameters to the servo circuit when the imaging system is operating in a first mode of operation and to apply the second set of control parameters to the servo circuit when the imaging system is operating in a second mode of operation.