Projection-Guided Filter Leak Inspection
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Solution Overview
Problem
Current leak inspection methods in clean rooms require significant resources, including scanning robots and large-scale equipment, leading to high costs and variability in accuracy, often necessitating multiple workers to maintain scanning speed and interval consistency.
Innovation Solution
The implementation of a leak inspection assistance device utilizing projection mapping technology to project the suction point and leak information onto the filter surface, allowing for accurate scanning at fixed intervals and speeds without the need for scanning robots or large-scale equipment, enabling a single worker to perform precise leak inspections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If scanning robots or large-scale equipment are used for leak inspection, then scanning speed and interval consistency are improved, but cost burden and device complexity increase significantly
Solution Approach 1:
The patent uses a projection device to create a visual copy (projection image) of the suction probe's position and scanning path on the filter surface. This projection image serves as a guide template that manually operates can follow, achieving consistent scanning intervals and speeds without requiring complex automated scanning robots. The projection image is a simplified copy that captures the essential scanning pattern information.
Solution Approach 2:
The patent replaces the mechanical scanning robot system with a projection-based guidance system. Instead of using a complex mechanical device to physically move the suction probe at constant speed and intervals, the system uses optical projection to display the scanning path, allowing manual operation to follow the projected guide. This substitution dramatically reduces device complexity while maintaining scanning consistency.
2Measurement precision
If multiple workers are deployed to maintain scanning consistency, then leak inspection accuracy is improved, but productivity and operational efficiency decrease
Solution Approach 1:
The projection device provides self-service guidance by automatically generating and displaying the scanning path based on the filter's outline. The system detects the filter's position and shape, then autonomously creates the projection image with appropriate scanning intervals and speeds. This eliminates the need for multiple workers to coordinate and monitor each other, as the projection image serves as an autonomous guide that any single worker can follow.
3Measurement precision
If scanning robots are positioned and adjusted for each filter, then scanning precision is improved, but ease of operation and setup time worsen
Solution Approach 1:
The projection device performs preliminary action by automatically detecting the filter's outline and pre-calculating the optimal scanning path before the actual leak inspection begins. The system projects the scanning guide image in advance, allowing the worker to simply follow the projected path without needing to manually position or adjust the suction probe. This preliminary setup eliminates complex positioning procedures.
Solution Approach 2:
The projection system is dynamic and adaptive - it automatically adjusts the projection image based on the detected filter position, size, and orientation. When the filter position changes or when different filters are inspected, the system recalculates and reprojects the appropriate scanning path, maintaining scanning precision without requiring manual repositioning or recalibration of equipment.
Data Source
AI summary
Provided are a leak inspection assistance device and a leak inspection method using the same which enable using a normal leak inspection device in a leak inspection of filters in a clean room, have a small cost burden since a scanning robot, large-scape equipment, an incidental work, and the like are not required, and enable performing the accurate leak inspection with a small number of workers.A projection device which projects a suction point of a suction probe adjunct to a leak inspection device which performs a leak inspection onto a surface of a filter in a clean room in such a manner that the suction point moves in X-Y axis directions orthogonal to each other along the surface of the filter at a fixed interval and a fixed speed is provided, and a worker uses the suction probe for scanning in accordance with movement of the suction point.