Radiographic Imaging Access Controller Radio Interference Management
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Solution Overview
Problem
Radiographic imaging systems face communication errors and delays due to radio interference from other radio network nodes, which existing technologies fail to adequately address, especially in the context of in-patient care where efficient data transmission is critical for medical diagnosis.
Innovation Solution
A radiographic imaging system with an access controller that manages communication access by storing frequency information, detecting overlap between radio communication channels, and regulating communication through interruption, data transfer rate limitation, or frequency changes to prevent interference, ensuring priority for the imaging process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used for data transmission between the electronic cassette and console unit, then positioning freedom and ease of operation are improved, but communication errors and delays occur due to radio interference from other radio network nodes
Solution Approach 1:
The access controller dynamically changes communication parameters including frequency selection and data transfer rate adjustment based on detected radio interference levels. When interference is detected, the system switches to alternative frequencies or reduces transfer rates to maintain stable communication, directly resolving the contradiction between wireless positioning freedom and communication reliability.
2Adaptability or versatility
If radio communication channels are shared with other devices, then adaptability and versatility are improved, but communication errors occur due to frequency overlap and radio interference
Solution Approach 1:
The access controller continuously monitors the radio environment for interference signals and uses this feedback to dynamically adjust communication parameters. When frequency overlap or interference is detected, the system automatically switches to alternative frequencies or adjusts transmission parameters, maintaining both versatility and reliability through continuous environmental adaptation.
Solution Approach 2:
The system transitions from static frequency assignment to dynamic frequency selection and data rate adjustment. The access controller adaptively changes communication parameters in real-time based on detected interference conditions, allowing the system to maintain reliable communication across varying radio environments while preserving communication flexibility.
3Productivity
If high data transfer rates are used for efficient image transmission, then productivity is improved, but communication errors and delays increase due to radio interference
Solution Approach 1:
The access controller implements variable data transfer rate adjustment, using high transfer rates when the radio environment is favorable and reducing rates when interference is detected. This partial action approach maintains high productivity during good conditions while ensuring communication reliability during interference, achieving both efficiency and stability.
Data Source
AI summary
An X-ray imaging system includes an X-ray imaging apparatus and an access controller, which controls communication access of the X-ray imaging apparatus having an electronic cassette for forming an X-ray image and wirelessly transmitting the X-ray image. Before the electronic cassette starts transmitting the X-ray image, a priority request signal for priority of the first radio communication channel to the electronic cassette over a portable terminal device of radio communication is received. Upon receiving the priority request signal, presence of the portable terminal device is checked, in which a radio communication channel of overlap of frequency on the first radio communication channel is used. In presence of the portable terminal device with the overlap, the portable terminal device is regulated in communication regulation while the electronic cassette transmits the X-ray image. Also, the X-ray imaging apparatus is communicable by use of a communication network in wireless communication connection.