Plant Apparatus Recognition Using Pipe Lengths Without Markers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In nuclear facilities, traditional self-localization methods using wireless techniques and markers are not applicable, and the shapes of plant facility apparatuses often differ from or have changed from their design data, making it difficult to recognize these apparatuses accurately.
Innovation Solution
A plant facility apparatus recognition system that uses a mobile device with a camera to acquire characteristic lengths from images of pipes and compare them with design data, allowing for accurate recognition even without wireless facilities or markers, by generating and comparing first and second characteristic lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional self-localization methods using wireless techniques and markers are used, then positioning and image recognition can be executed, but these methods cannot be applied within nuclear facilities due to restrictions on wireless facilities and markers
Solution Approach 1:
The patent extracts the essential recognition function from wireless-dependent methods by using a camera to capture images and extract characteristic lengths directly from visual data. This removes the dependency on wireless facilities and markers while maintaining the core capability of apparatus recognition and positioning.
Solution Approach 2:
The patent replaces wireless communication-based localization with an optical measurement system using a camera. By substituting the wireless signal transmission mechanism with optical image capture and processing, the system becomes applicable in environments where wireless facilities are restricted.
2Measurement precision
If image matching with design data is used to recognize plant facility apparatuses, then recognition can be executed, but shapes of apparatuses often differ from or have changed from design data making matching difficult
Solution Approach 1:
The patent segments the apparatus recognition task into extracting multiple characteristic lengths from the imaged apparatus and comparing each with corresponding design data. This segmentation allows partial matching even when overall shapes differ, improving recognition accuracy for modified apparatuses.
Solution Approach 2:
The patent changes the recognition approach from matching overall shapes to comparing specific dimensional parameters (characteristic lengths). By focusing on measurable parameters rather than holistic shape matching, the system can accurately identify apparatuses even when their overall shapes have been modified from design data.
Data Source
AI summary
A plant facility apparatus recognition system is provided, which appropriately recognizes a plant facility apparatus even in a plant facility in which a wireless facility and a marker are not able to be installed even when the shape of the plant facility apparatus is different from or has been changed from design data. The plant facility apparatus recognition system that uses a mobile device having a camera to recognize the plant facility apparatus to be subjected to work in the plant facility includes a characteristic length acquirer that acquires information on the pipe as a first characteristic length from an image obtained by causing the camera to image the plant facility apparatus and the pipe existing near the plant facility apparatus, and a characteristic length comparator that compares the first characteristic length with a second characteristic length acquired from the design data and related to the pipe.