X-ray CT Power Supply Control for Energy Reduction
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Solution Overview
Problem
X-ray computed tomography apparatuses consume high power even in standby mode due to continuous operation for potential urgent patient needs, leading to inefficient energy usage.
Innovation Solution
Implementing a power supply control unit that switches the apparatus between active and standby modes based on examination schedule data, reducing power consumption by stopping power to non-essential components during standby periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the apparatus remains active in standby mode to accept urgent patients, then the reliability is improved, but the use of energy deteriorates
Solution Approach 1:
The power supply control unit dynamically adjusts the operational state of apparatus components based on real-time demand signals. When no examination requests are received, the system transitions to standby mode with reduced power consumption. When examination requests arrive, the system activates to full operational mode, ensuring urgent patients are accommodated while minimizing energy waste during low-demand periods.
Solution Approach 2:
The system changes the power supply parameter from high (active mode) to low (standby mode) based on examination schedule data. The power supply control unit monitors examination requests and adjusts power delivery accordingly, transforming the apparatus from a static high-power state to a dynamic system that adapts power consumption to actual operational needs.
2Use of energy by moving object
If the apparatus switches to standby mode to save energy, then the use of energy is improved, but the reliability deteriorates
Solution Approach 1:
The power supply control unit continuously monitors examination schedule data and examination requests as feedback signals. When an examination request is received during standby mode, the feedback mechanism triggers immediate activation of the apparatus, ensuring that urgent patients are accommodated without delay while maintaining energy-saving operation during idle periods.
Solution Approach 2:
The system performs preliminary switching to standby mode before examination periods to save energy, while the power supply control unit maintains the capability for rapid activation. This preliminary action reduces power consumption during low-demand periods while preserving the system's ability to respond immediately when examination requests arrive.
3Reliability
If the apparatus remains active continuously, then the reliability is improved, but the loss of energy deteriorates
Solution Approach 1:
The apparatus operates in periodic cycles between active and standby modes based on examination schedule data. The power supply control unit activates the apparatus during scheduled examination periods and transitions to standby mode during idle periods, creating a rhythmic pattern of operation that maintains patient care availability while minimizing energy waste during non-operational times.
Data Source
AI summary
According to one embodiment, in an X-ray computed tomography apparatus including a gantry unit including an X-ray tube and an X-ray detector, a bed unit, and a console, the X-ray computed tomography apparatus includes a storage unit, a power supply unit, and a power supply control unit. The storage unit stores examination schedule data of the X-ray computed tomography. The power supply unit selectively operates between an active mode of supplying power to at least one of the gantry unit, the bed unit, and the console and a standby mode of stopping supplying power to at least one of the bed unit and the gantry unit and supplying, to the console, power smaller than power supplied in the active mode. The power supply control unit controls switching from the active mode to the standby mode based on the examination schedule data.