Digital Radiography Motion Control for Collision-Free Positioning

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Solution Overview

Problem

Existing digital radiography systems lack efficient methods for dynamically adjusting the motion paths of moving components, such as X-ray detectors and tubes, to avoid collisions and optimize positioning relative to imaging targets.

Innovation Solution

The system incorporates a control module that utilizes positional information from sensing units to adjust the speed and route of moving components, calculating axial speeds based on attractive and repulsive forces to ensure safe and optimal motion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If moving components are used to enable flexible positioning of X-ray detectors and tubes, then positioning adaptability is improved, but collision risk increases

Engineering Contradiction:
Improvepositioning adaptabilityVSAvoidcollision risk
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system employs sensing units that continuously detect positional information of moving components and feed this data back to the control module. The control module processes this feedback to dynamically adjust motion parameters, preventing collisions while maintaining positioning flexibility. This closed-loop control ensures reliable operation despite the increased adaptability introduced by movable components.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system transitions from static to dynamic control by enabling moving components to adjust their positions and motion speeds in real-time. The control module calculates axial speeds based on positional feedback, allowing the system to adapt its dynamics to avoid collisions while maintaining the flexibility benefits of movable components.

Inventive Principle:
Principle #15Dynamics

2Reliability

If dynamic motion control is implemented to prevent collisions, then safety is improved, but system complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control module autonomously processes positional information from sensing units and automatically adjusts motion parameters without requiring external intervention. The system serves itself by integrating sensing, calculation, and control functions within the control module, improving safety while minimizing the need for additional complex external control systems.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent combines multiple functions including sensing unit detection, positional information processing, speed calculation, and motion control into an integrated control module. This merging of functions reduces overall system complexity by consolidating control elements rather than adding separate systems for each function.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If axial speed calculation based on forces is used to optimize positioning, then positioning precision is improved, but computational complexity increases

Engineering Contradiction:
Improvepositioning precisionVSAvoidcomputational complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system replaces complex mechanical positioning mechanisms with computational methods. By calculating axial speeds based on force models and positional feedback, the system achieves precise positioning through software-based control rather than complex mechanical linkages, reducing physical complexity while maintaining or improving precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12295766B2System and method for digital radiography
Publication Date: 2025.05.13 SHANGHAI UNITED IMAGING HEALTHCARE
  • US12295766B2 patent drawing
  • US12295766B2 patent drawing
  • US12295766B2 patent drawing

AI summary

The present disclosure relates to a system and method for digital radiography. The system may include an X-ray generation module, an X-ray acquisition module, a control module, a support module and a power supply module. The system may include one or more moving components. The X-ray acquisition module may have different configurations, such as a vertical configuration, a horizontal configuration and a free-style configuration. The control module may be configured for controlling the motion of the moving components, the selection of an X-ray acquisition module of a specific configuration, and parameters of the X-ray exposure and image acquisition. The support module may include a system of guiding rails. The power supply module may include a capacitor.