X-Ray Detector Output Integration for High-Speed Inspection
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Solution Overview
Problem
Existing X-ray inspection devices struggle to perform inspections efficiently at high conveyance speeds of articles due to the volume of generated images exceeding the inspection time, preventing timely image transfer and inspection.
Innovation Solution
The X-ray inspection device employs a configuration with alternating columns of first and second detecting elements, integrating their outputs at different conveyance speeds to generate a single image, reducing image volume and enabling timely transfer and inspection regardless of conveyance speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the conveyance speed of articles is increased to improve production efficiency, then productivity is improved, but the image volume generated exceeds the inspection time, preventing timely image transfer and inspection
Solution Approach 1:
The detecting elements are divided into two separate groups: first detecting elements for generating a first image and second detecting elements for generating a second image. This segmentation allows the system to process and transfer images in smaller, manageable units, reducing the overall image transfer time and enabling timely inspection even at high conveyance speeds
Solution Approach 2:
The system generates only a necessary portion of the full image data at high conveyance speeds by using separate detecting element groups for different image types. This partial action approach reduces the total image volume that needs to be transferred and processed within the limited inspection time window
2Reliability
If two separate images are generated from first and second detecting elements, then detection coverage is improved, but the image volume increases, preventing completion of image transfer within inspection time
Solution Approach 1:
The detecting elements are segmented into two independent groups that generate different types of images. This segmentation allows the system to maintain comprehensive detection coverage while managing image volume by processing smaller image units separately rather than as one large image
Solution Approach 2:
The first image and second image are merged or combined to form a comprehensive inspection result. This merging approach maintains the benefits of dual detecting element groups for improved detection coverage while allowing the system to work with smaller, more manageable image volumes at each processing stage
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 allows for efficient inspection at varying conveyance speeds by reducing image volume and ensuring timely image transfer, while also minimizing the risk of missing foreign matter detection and maintaining cost-effectiveness.
Implementation Method 1
an X-ray irradiation unit configured to irradiate the article conveyed by the conveying unit with X-rays; an X-ray detection unit in which a plurality of detecting elements configured to detect the X-rays
Data Source
AI summary
An X-ray inspection device includes: a conveying unit; an X-ray irradiation unit; a sensor unit; an image generation unit that generates an image based on a detection result output from the sensor unit; and an inspection unit. The sensor unit outputs an integrated value of output values of first detecting elements in a plurality of first columns and an integrated value of output values of second detecting elements in a plurality of second columns when a conveyance speed of the conveying unit is lower than a predetermined speed, and outputs an integrated value of the output values of the first detecting elements in the plurality of first columns and the output values of the second detecting elements in the plurality of second columns when the conveyance speed of the conveying unit is the predetermined speed or higher.