Portable Radiation Emitter Collimator Control for Power Reduction
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Solution Overview
Problem
Portable radiation emitting devices face increased power consumption when collimators are sequentially driven to match the radiation field with optical images, leading to reduced battery life and operating efficiency.
Innovation Solution
Incorporating a control unit that issues collimator driving commands based on captured images displayed on a monitor, allowing the collimator to set the radiation field region only when the exposure switch is operated, thereby reducing unnecessary power consumption by minimizing collimator driving until necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the collimator is sequentially driven to match the radiation field with the optical image range, then the radiation field is appropriately set, but the power consumption increases
Solution Approach 1:
The system captures an optical image of the subject beforehand to determine the appropriate radiation field region, then uses this pre-acquired information to control the collimator positioning. This preliminary imaging action allows the collimator to be driven only when necessary, rather than continuously or sequentially, thereby reducing power consumption while maintaining precise radiation field setting.
Solution Approach 2:
The system uses the optical image captured by the imaging unit to automatically determine the radiation field region and control the collimator without requiring continuous manual intervention. The control unit processes the optical image information and autonomously controls the collimator driving, reducing unnecessary power consumption while maintaining precise field matching.
2Measurement precision
If the collimator is driven frequently to adjust the radiation field, then the radiation field region is accurately determined, but the battery life is reduced
Solution Approach 1:
The optical image is captured in advance to determine the radiation field region, and the collimator is driven only when the exposure switch is operated. This preliminary determination of the field region from the optical image eliminates the need for frequent collimator adjustments, thereby extending battery life while maintaining accurate field region determination.
Solution Approach 2:
The collimator driving is performed periodically only when the exposure switch is operated, rather than continuously or at fixed intervals. This periodic action based on actual exposure needs reduces unnecessary collimator movements, conserving battery power while ensuring accurate radiation field positioning when required.
3Weight of moving object
If the portable radiation emitting device is designed with minimum components to reduce size and weight, then the device is more portable, but the power consumption management becomes more critical
Solution Approach 1:
The control unit integrates multiple functions including optical image processing, radiation field region determination, and collimator control into a single integrated system. This merging of functions reduces the number of separate components needed, maintaining device portability while improving power consumption management through unified control logic.
Solution Approach 2:
The system dynamically adjusts the collimator driving based on actual operational needs detected through the exposure switch and optical image analysis. This dynamic control ensures the collimator operates only when necessary, optimizing power consumption for the portable device while maintaining the minimal component design for portability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces power consumption and extends battery life by ensuring the collimator is driven only when required, improving the operational efficiency and longevity of portable radiation emitting devices.
Implementation Method 1
a radiation source that emits radiation to an imaging target
Implementation Method 2
imaging unit for capturing an image of the imaging target
Data Source
AI summary
Provided are a radiation emitting device forming a radiography apparatus, a method for controlling the radiation emitting device, and a program which can reduce power consumption. A radiation emitting device includes a radiation source, a collimator that sets a radiation field region, imaging unit for capturing an image of an imaging target, a display unit that displays the image captured by the imaging unit, an exposure switch, and a control unit that issues a collimator driving command to direct the collimator to set the radiation field region determined from the captured image to the collimator in a case in which the exposure switch is operated.