Foreign matter recognition method and device
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Solution Overview
Problem
Washing machines often suffer damage due to foreign objects like keys, coins, or mobile phones being accidentally placed inside garments, which can also damage the garments and pose a risk to the machine's operation.
Innovation Solution
A foreign matter recognition method and device that uses X-ray scanning or ultrasonic waves to detect foreign objects within garments, with metal sensing capabilities, and prompts users through sounds or displays to remove the objects before washing, preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If X-ray scanning or ultrasonic wave detection is used to detect foreign objects, then detection capability is improved, but device complexity increases
Solution Approach 1:
The patent uses X-ray scanning or ultrasonic waves as intermediary detection methods to indirectly detect foreign objects within garments. Instead of direct contact sensors, these waves penetrate the fabric and reflect off or absorb by foreign objects, providing detection capability without requiring complex internal sensor arrays within the washing machine drum.
2Measurement precision
If metal sensing parts are used to detect foreign objects, then detection accuracy for metal objects is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical sensing systems with electromagnetic field-based metal sensing parts. These sensing components detect changes in electromagnetic fields caused by the presence of metal foreign objects, providing accurate metal detection without requiring mechanical contact or complex mechanical sensor arrays.
3Loss of information
If prompt systems (sound or display) are added to alert users, then user awareness is improved, but device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms through sound prompts or display screens that immediately notify users when foreign objects are detected. The detection system provides real-time feedback to the user, allowing them to remove foreign objects before the washing cycle begins, preventing damage to garments or the washing machine.
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
Effectively alerts users to the presence of foreign objects, preventing damage to both garments and washing machines by ensuring timely removal, thus enhancing operational safety and reducing maintenance costs.
Implementation Method 1
the garment to be washed is scanned using a X ray scanning part or through ultrasonic wave to acquire a scanned image of the garment to be washed
Implementation Method 2
the garment to be washed is scanned using a X ray scanning part or through ultrasonic wave to acquire a scanned image of the garment to be washed
Data Source
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AI summary
The present invention relates to a foreign matter recognition method and device. The method includes that: it is detected whether a garment to be washed that is placed in a washing device meets a foreign matter recognition condition; in the case that the garment to be washed meets the foreign matter recognition condition, it is recognized that a foreign matter exists in the garment to be washed; and a prompt indicating existence of the foreign matter is given. According to an embodiment of the present invention, it is detected whether the garment to be washed that is placed in the washing device meets the foreign matter recognition condition, and in the case that the foreign matter recognition condition is met, it is recognized that the foreign matter exists in the garment to be washed, and the prompt indicating existence of the foreign matter is given, so that a user is prompted to timely clean the foreign matter in the garment to be washed to avoid damage brought by the foreign matter.