Dual-Band Wireless Control for X-Ray Exposure Stop Signals
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Solution Overview
Problem
Existing X-ray imaging systems face delays in auto exposure control (AEC) signals due to radio frequency interference, leading to potential invalid exposures when high-power wireless communication is used for exposure stop signals.
Innovation Solution
The X-ray imaging system employs a dual communication mode, where exposure stop signals are transmitted at a lower power in the 2.4 GHz band to minimize delays, while image data is transmitted at higher power in the 5 GHz band, reducing the risk of transmission delays and invalid exposures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-power wireless communication is used for exposure stop signals, then communication speed is improved, but transmission delay risk increases due to radio frequency interference
Solution Approach 1:
The patent segments wireless communication into two distinct modes: first communication mode for exposure stop signals at low power, and second communication mode for image data at high power. This segmentation allows each type of data to be transmitted under optimized conditions, preventing radio frequency interference from causing transmission delays in critical exposure control signals.
Solution Approach 2:
The patent applies local quality by assigning different power levels to different communication modes based on their specific requirements. The first communication mode uses low power for reliable exposure stop signal transmission, while the second communication mode uses high power for fast image data transmission. This localized optimization of communication parameters resolves the contradiction between speed and reliability.
2Loss of time
If low-power wireless communication is used for exposure stop signals, then transmission delay is reduced, but communication distance may be limited
Solution Approach 1:
The patent segments communication functions into two modes with different power characteristics. The first communication mode operates at low power specifically for exposure stop signals, ensuring minimal transmission delay. The second communication mode operates at high power for image data transmission, maintaining communication distance. This segmentation allows the system to achieve both short transmission delay and sufficient communication distance simultaneously.
Solution Approach 2:
The patent changes the power parameter dynamically based on the type of data being transmitted. For exposure stop signals, the system switches to low-power mode to minimize transmission delay. For image data, the system switches to high-power mode to maintain communication distance. This dynamic parameter adjustment resolves the contradiction between transmission delay and communication distance.
Data Source
AI summary
A radiation imaging system comprising a control apparatus that controls a radiation generating apparatus which exposes a radiation and a radiation imaging apparatus that detects the exposed radiation and generates a radiation image, wherein the radiation imaging apparatus has a first communication mode in which a signal related to a stop of exposure of the radiation is wirelessly transmitted and a second communication mode in which at least one signal not related to the stop of exposure of the radiation is wirelessly transmitted, and wherein communication in the first communication mode includes communication at power lower than communication in the second communication mode.