Dummy-Based Clothing Windproof Testing With Visual Fabric Strips
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Solution Overview
Problem
Existing clothing windproof performance tests are inaccurate and lack intuitiveness as they focus on fabric air permeability, ignoring the clothing's shape and wear state, which affects airflow and testing results.
Innovation Solution
A clothing windproof performance testing tool and method using a dummy with a transparent back panel and partitions forming test compartments, equipped with test fabric strips and an image sensor to evaluate wind resistance by observing fabric strip movement when clothing is worn, providing levels from Level 0 to Level 4 based on fluttering states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fabric air permeability testing is used to determine windproof performance, then the testing method is simple, but the testing accuracy and intuitiveness deteriorate
Solution Approach 1:
The patent uses test fabric strips as simplified copies of the actual clothing fabric, attached to the dummy's clothing. These strips replicate the fabric's response to wind pressure without requiring complex air permeability equipment, providing intuitive visual indication of windproof performance while maintaining testing simplicity.
Solution Approach 2:
The patent employs fabric strips with different colors or patterns that change appearance or orientation based on wind pressure. The strips' visual states (fluttering, aligning with wind direction) provide intuitive color/orientation changes that directly indicate windproof performance levels, making the results immediately observable without complex measurement equipment.
2Device complexity
If clothing is tested in a flat state, then the testing setup is simple, but the testing accuracy deteriorates due to ignoring clothing shape and wear state
Solution Approach 1:
The patent introduces a dummy as an intermediary that simulates the human body's shape and clothing wear state. The dummy provides a three-dimensional form that replicates how clothing actually fits and moves on a person, creating realistic airflow conditions without requiring a actual human subject. This mediator enables accurate windproof testing while maintaining setup simplicity.
Solution Approach 2:
The patent transitions from two-dimensional flat fabric testing to three-dimensional clothing testing on a dummy. By adding the dimension of human body shape and clothing drape, the testing setup captures the actual airflow patterns around worn clothing, significantly improving measurement accuracy while the modular dummy design keeps the overall setup manageable.
3Device complexity
If manual observation of fabric strip movement is used, then the device complexity is low, but the ease of operation and safety deteriorate
Solution Approach 1:
The patent replaces manual visual observation with an image sensor-based automated detection system. Cameras or image sensors capture the movement and orientation of test fabric strips, and image processing algorithms automatically analyze the results to determine windproof performance levels. This substitution eliminates the need for operators to be in close proximity to the test environment, improving safety and operational convenience.
4Measurement precision
If the dummy is fully dressed for testing, then the testing accuracy improves, but the ease of operation and safety deteriorate
Solution Approach 1:
The patent extracts only the essential test components (test fabric strips attached to specific locations on the clothing) and places them on the dummy, rather than requiring the operator to handle or wear the complete clothing assembly. The image sensor system observes the strips from a safe distance, allowing full clothing configuration for accuracy while maintaining operator safety and operational ease.
Data Source
AI summary
Disclosed is a clothing windproof performance testing tool, including a dummy having a transparent back panel, vertical partitions, and horizontal partitions; where the transparent back panel has a projected contour of a human torso, the vertical partitions are fixed onto the back panel at intervals in a horizontal direction, a front side edge of each vertical partition has a concave-convex structure, which forms a three-dimensional contour of the human torso around front side edges of the vertical partitions; and the horizontal partitions are fixed onto the transparent back panel at intervals, and fixedly connected to the vertical partitions, the vertical and horizontal partitions are enclosed to form a plurality of test compartments, each test compartment is provided with a test fabric strip, an upper end of the test fabric strip is connected to a top surface of the test compartment, and a lower end thereof is left hanging freely.