Washing Machine Fabric Detection for Automatic Cycle Control
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Solution Overview
Problem
Conventional washing machines lack the ability to automatically determine the fabric type of laundry and adjust washing parameters accordingly, leading to suboptimal washing results for different fabric types.
Innovation Solution
A control device for a washing machine that includes a fabric detection unit to identify the fabric texture and weight of laundry, a control unit to determine the fabric type, and adjust washing parameters such as temperature, washing level, and dehydration speed based on detected values, using methods like frictional resistance measurement or image comparison.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional washing machines use fixed washing parameters, then the device complexity is low, but the washing quality for different fabric types deteriorates
Solution Approach 1:
The fabric detection unit performs preliminary detection of fabric texture before the washing cycle begins, allowing the control unit to pre-determine appropriate washing parameters. This preliminary action enables customized washing programs to be selected in advance, improving washing quality without requiring complex real-time adjustments during the washing process.
Solution Approach 2:
The washing machine automatically detects fabric type and selects appropriate washing parameters without user intervention. The fabric detection unit and control unit work together to self-determine the washing program, eliminating the need for users to manually select from multiple program options and reducing the operational complexity for the user.
2Adaptability or versatility
If a fabric detection unit is added to detect fabric texture, then the adaptability to different fabric types is improved, but the device complexity increases
Solution Approach 1:
The fabric detection unit replaces manual fabric identification with an automated sensing system. Instead of requiring users to mechanically select programs based on visual inspection of fabric, the detection unit uses sensors to automatically identify fabric texture characteristics, translating a manual process into an automated one that improves adaptability while managing complexity through integration.
Solution Approach 2:
The fabric detection unit is designed to detect multiple fabric types and textures using a single integrated sensing mechanism. Rather than requiring separate detection devices for different fabric categories, the universal detection unit can identify various fabric characteristics through its sensing capabilities, improving versatility without proportionally increasing device complexity.
3Manufacturing precision
If washing parameters are automatically adjusted based on fabric type, then the washing quality is improved, but the control complexity increases
Solution Approach 1:
The control unit receives feedback from the fabric detection unit regarding fabric texture characteristics and automatically adjusts washing parameters based on this information. The feedback mechanism enables the system to close the control loop, where detection results directly influence parameter selection, improving washing quality through automated adaptation while managing control complexity through algorithmic decision-making.
Solution Approach 2:
The control unit automatically modifies washing parameters such as water temperature, drum speed, and wash cycle duration based on the detected fabric type. By implementing pre-defined parameter sets for different fabric categories and automatically selecting the appropriate set, the system achieves high washing quality without requiring complex real-time parameter optimization, thus managing control complexity effectively.
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
Enables automatic washing of laundry based on its fabric type, ensuring optimal washing and dehydration results for various fabrics like cotton, hemp, wool, silk, and blends, and provides feedback on washing quality and method optimization for connected machines.
Implementation Method 1
the fabric detection unit may detect a frictional resistance value due to a contact with the laundry, and output the detected frictional resistance value as the fabric texture of the laundry
Data Source
AI summary
The present disclosure relates to: a washing machine capable of washing laundry automatically by a washing method suitable for the laundry; and a control method therefore. A control device for a washing machine according to embodiments of the present invention may comprise: a fabric detection unit for detecting the fabric texture of laundry received in a drum of a washing machine; a detection unit for detecting the weight of the laundry; and a control unit for determining the fabric type of the laundry on the basis of the detected fabric texture, and controlling the washing machine on the basis of the fabric type and the weight of the laundry.