Wireless Radiation Imaging Exposure Control Retransmission
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Solution Overview
Problem
Wireless communication instability in radiation imaging systems can lead to inaccurate exposure control due to delayed or missed dose information transmission, affecting the quality of radiation images.
Innovation Solution
The radiation imaging apparatus is designed to retransmit a signal instructing to stop radiation irradiation after a predetermined time interval if an irradiation stop signal is not received from the radiation control apparatus, ensuring reliable exposure control even in unstable communication environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used for exposure control between radiation imaging apparatus and radiation control apparatus, then ease of operation and system flexibility are improved, but communication stability and reliability deteriorate due to noise and intermittent disconnections
Solution Approach 1:
The radiation imaging apparatus implements a feedback mechanism by monitoring whether an irradiation stop signal is received from the radiation control apparatus within a predetermined time period. Based on this feedback, the system automatically determines whether to retransmit the irradiation stop signal, ensuring reliable exposure control despite wireless communication instability.
Solution Approach 2:
The system performs preliminary action by automatically retransmitting the irradiation stop signal if not acknowledged within a predetermined time period. This proactive approach prevents communication failures from compromising exposure control accuracy, addressing the reliability issue before it affects imaging quality.
2Reliability
If dose information is transmitted multiple times over wireless communication, then reliability of exposure control is improved, but loss of time due to repeated transmissions and communication delays increases
Solution Approach 1:
The system uses feedback timing mechanisms to determine whether retransmission is necessary. By checking if the irradiation stop signal is received within a predetermined time period, the system avoids unnecessary retransmissions and associated delays while ensuring reliable exposure control when communication failures occur.
Solution Approach 2:
The system applies partial action by selectively retransmitting the irradiation stop signal only when necessary (i.e., when not received within the predetermined time period). This approach balances reliability improvement with time efficiency, avoiding excessive retransmissions that would increase communication delays.
3Reliability
If automatic retransmission of irradiation stop signal is implemented, then exposure control reliability is improved, but device complexity increases
Solution Approach 1:
The automatic retransmission function leverages the existing feedback mechanism in wireless communication. The radiation imaging apparatus simply monitors whether the irradiation stop signal is received within a predetermined time period and automatically retransmits if needed, implementing reliability improvement without requiring complex additional hardware or systems.
Solution Approach 2:
The system performs self-service by automatically detecting communication failures and retransmitting the irradiation stop signal without requiring external intervention or complex control systems. This keeps the device complexity low while improving exposure control reliability.
Data Source
AI summary
A radiation imaging system is provided. The system comprises a radiation imaging apparatus including a plurality of pixels for acquiring radiation image data and a detection unit for performing exposure control during radiation irradiation, and a radiation control apparatus configured to control a radiation source that irradiates radiation to the radiation imaging apparatus. The radiation imaging apparatus and the radiation control apparatus transmit signals that relate to exposure control by wireless communication. The radiation imaging apparatus, in a case where an irradiation stop signal indicating that radiation irradiation has been stopped is not received from the radiation control apparatus after a signal instructing to stop radiation irradiation has been transmitted to the radiation control apparatus and until a first time interval has elapsed, transmits a signal instructing to stop radiation irradiation to the radiation control apparatus again.