Washing machine and operating method of washing machine
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Solution Overview
Problem
Conventional washing machines with automatic detergent dispensing lack accuracy in adjusting detergent quantity based on laundry state, leading to user inconvenience and inefficiency, as they rely solely on laundry load without considering contamination levels.
Innovation Solution
A washing machine with a touch screen interface that automatically adjusts detergent quantity based on both laundry load and contamination level, allowing users to visually confirm detergent input and receive notifications for insufficient detergent, enabling optimal washing cycles and user interaction for adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a washing machine automatically introduces laundry detergent based solely on laundry load, then the automation level is improved, but the accuracy of detergent quantity adjustment deteriorates
Solution Approach 1:
The washing machine introduces laundry detergent in multiple stages based on feedback from contamination level detection. The control unit detects the contamination level of laundry during washing, determines whether additional detergent is needed, and introduces more detergent accordingly. This closed-loop feedback mechanism enables accurate detergent quantity adjustment while maintaining automatic operation.
Solution Approach 2:
The washing machine performs preliminary detergent introduction based on predicted contamination level before actual contamination detection is complete. The control unit introduces an initial amount of laundry detergent, then adjusts the quantity based on subsequently detected contamination levels. This preliminary action allows the system to start washing immediately while maintaining accurate detergent dosage through subsequent adjustments.
2Ease of operation
If the control unit is integrated into the main body with multiple buttons and knobs, then the operating interface is provided, but the appearance simplicity deteriorates
Solution Approach 1:
The control unit is merged with the door assembly rather than being separately mounted on the main body. The touch screen and control elements are integrated into the door, combining the control function with the door structure. This merging maintains appearance simplicity by eliminating separate control panels while providing a modern touch interface.
Solution Approach 2:
The door serves multiple functions: it provides the clothes inlet opening, acts as a structural component, and houses the control unit with touch screen interface. By making the door multi-functional, the design eliminates the need for separate control panels and maintains a clean, simple appearance while providing comprehensive control capabilities.
3Shape
If a touch screen is implemented on the door, then the appearance simplicity is improved, but the device complexity increases
Solution Approach 1:
Traditional mechanical buttons, knobs, and physical switches are replaced with a touch screen interface. The touch screen provides all control functions through graphical user interface elements, eliminating the need for multiple mechanical control components. This substitution simplifies the overall device structure while maintaining full control functionality.
Solution Approach 2:
The control interface transitions from static mechanical elements to a dynamic touch screen that can display various operational modes, settings, and information. The touch screen adapts its display based on the washing machine's operational state, providing context-appropriate controls and information without requiring physical reconfiguration of buttons or knobs.
Data Source
Figure 1A
Figure 1B~1C
Figure 1D
AI summary
A washing machine and an operating method thereof are disclosed. A washing machine according to an embodiment of the present invention comprises: a washing tub; a touch screen for outputting a graphical object corresponding to a washing-related function which can be performed by the washing tub; a detergent supplying unit which is formed to receive a laundry detergent in an inner space thereof and supply the received laundry detergent to the washing tub through a supply fluid path; and a control unit which detects a load and a contamination level of laundry in response to input of a washing start command and determines an input quantity of the laundry detergent received in the detergent supplying unit on the basis of the detected load and contamination level. In addition, the control unit displays a graphical object related to the determined laundry detergent input quantity on the touch screen.