Dishwasher Real-Time Course Switching for Remote Noise Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dishwashers generate operation noise that interferes with users in adjacent rooms, requiring manual intervention to switch to a low noise-level mode, disrupting the user experience.
Innovation Solution
A dishwasher equipped with an input unit for receiving voice or remote control signals to change the washing course to a low noise-level mode, controlled by a controller that adjusts motor speed, time duration, and water temperature in real-time, allowing seamless transition without stopping the current cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dishwasher operates in a standard washing course, then washing performance is improved, but noise level increases and interferes with users in adjacent rooms
Solution Approach 1:
The dishwasher dynamically adjusts operational parameters (motor speed, pump speed, spray pressure) during the washing cycle based on the selected course. The controller modifies these parameters in real-time to balance washing performance with noise reduction, allowing the system to adapt between standard and low-noise modes without compromising essential washing function
Solution Approach 2:
The system changes physical parameters such as motor rotation speed, water pump flow rate, and spray pressure to control noise levels. By reducing these parameters during low-noise courses while maintaining adequate washing through extended duration or optimized spray patterns, the dishwasher resolves the contradiction between performance and noise
2Object-generated harmful factors
If the user manually stops the washing operation to change the course, then noise level can be reduced, but user convenience deteriorates and requires physical intervention
Solution Approach 1:
The patent replaces the mechanical/physical intervention system (user must go to the machine, press buttons, stop and restart) with an electronic communication system. The controller receives signals from remote controllers, mobile phones, or other wireless devices, allowing users to change washing courses remotely without physical presence at the dishwasher
Solution Approach 2:
The controller acts as an intermediary between the user and the washing mechanism. It receives course change signals from various input devices (remote controller, mobile phone, voice input) and automatically executes the course change without requiring user interaction with the dishwasher itself, thus maintaining convenience while enabling noise reduction
3Adaptability or versatility
If the dishwasher provides multiple washing courses, then adaptability is improved, but device complexity increases
Solution Approach 1:
The controller serves multiple functions: it manages different washing courses, receives various types of input signals (remote control, mobile phone, voice), controls multiple operational parameters (motor speed, pump speed, heating), and handles course transitions. This multi-functionality consolidates complexity into a single control unit rather than requiring separate systems for each function
Data Source
AI summary
The present invention relates to a dishwasher, which allows a washing course to be changed to a low-noise course in real time with a simple operation by using a user terminal while the dishwasher is running, and to a method for controlling a washing course of the dishwasher. The dishwasher, according to embodiments of the present invention, may comprise: an input unit that receives a course change signal commanding to change to a low-noise course having a noise level lower than a noise level of a washing course; a storage unit storing, as data, the speed of a washing motor of the low-noise course corresponding to each washing stage of the washing course; and a control unit that, when the course change signal is input, recognizes the washing stage of the washing course, changes to the speed of the washing motor of the low-noise course corresponding to the recognized washing stage, and controls the washing stage of the low-noise course.