Radiography Timing Synchronization After Interface Disconnection
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Solution Overview
Problem
Conventional radiography systems face challenges in performing stable serial radiography without a physical interface between the radiation device and the radiography device, particularly in maintaining synchronization of timing signals.
Innovation Solution
The radiography system includes an interface unit for connecting to an external interface and a controller that operates based on timing signals from the external interface to synchronize with the radiation device, allowing for continuous operation of generating frame images even after the interface connection is cut off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cable-less operation is implemented for radiography, then ease of operation is improved, but reliability of synchronization deteriorates
Solution Approach 1:
The radiography device stores timing information acquired during the connected state in advance. When the connection is cut off, the device continues to operate based on this previously stored timing information, allowing serial radiography to proceed without real-time connection while maintaining synchronization reliability.
2Device complexity
If each device generates its own clock independently, then device complexity is reduced, but measurement precision of timing synchronization deteriorates
Solution Approach 1:
When the interface is connected, the radiography device acquires timing information from the radiation device and uses it to correct its own timing. This feedback mechanism ensures high measurement precision of timing synchronization during the connected state, which then serves as accurate reference data for subsequent independent operation.
3Adaptability or versatility
If connection is cut off to enable mobile operation, then adaptability is improved, but loss of timing information synchronization increases
Solution Approach 1:
The system acquires and stores necessary timing information during the connected state before mobile operation begins. This preliminary acquisition ensures that when the connection is cut off for mobile operation, the radiography device has sufficient timing information to continue serial radiography without significant loss of synchronization.
Data Source
AI summary
A radiography device includes an interface unit and a controller. The interface unit connects to an external interface. The controller operates according to timing signals from the external interface connected to the interface unit so as to synchronize with timing of repetition of generation of radiation by a radiation device that generates radiation in serial radiography in which frame images are generated. Even after connection between the interface unit and the external interface is cut off, the controller repeats operation for generating a frame image while synchronizing with the radiation device without communicating with an outside.