Cable-Free Radiography Timing Sync for Serial Frame Imaging
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Solution Overview
Problem
Conventional radiography systems face challenges in performing stable serial radiography without a cable connection, as they struggle to maintain synchronization between radiation and radiography devices, leading to long time intervals between radiation applications and inefficiencies in capturing multiple frame images.
Innovation Solution
A radiography device with an interface unit that connects to an external interface to synchronize timing signals, allowing the controller to operate independently after disconnection, ensuring continuous frame image generation and radiation application without external communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If each device generates its own clock independently, then the system can operate without cable connection, but the timekeeping information cannot be sufficiently adjusted and synchronization is lost
Solution Approach 1:
The radiography device stores timing information acquired during the connected state in advance. When disconnected, it retrieves and uses this pre-stored timing information to maintain synchronization with the radiation device, eliminating the need for real-time communication while preserving sync accuracy.
Solution Approach 2:
The radiography device creates a copy of the timing information from the radiation device during connection. This copied timing data is then used locally during disconnection, allowing the radiography device to replicate the synchronization behavior without continuous external input.
2Ease of operation
If the switch is operated in two steps, then radiation application is controlled, but time intervals between radiation applications are too long for serial radiography
Solution Approach 1:
The system uses periodic timing signals stored in the timer to automatically trigger radiation application at predetermined intervals. This replaces manual two-step switching with automated periodic action, enabling rapid serial radiography while maintaining controlled radiation application.
Solution Approach 2:
The radiography device's controller automatically manages the radiation application timing based on stored timing information. The system serves itself by using its own timer and stored data to control the radiation cycle, eliminating dependence on manual user operation for each frame.
3Reliability
If timing signals are used for synchronization, then frame image generation is coordinated, but power consumption increases during connected operation
Solution Approach 1:
The system receives timing signals periodically from the radiation device only when connected. During disconnection, it uses its own timer with pre-stored timing information, eliminating continuous power-consuming communication while maintaining synchronization through periodic local timing generation.
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.