Dishwasher Filter Replacement Notification Based on Fan Operation Time
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Solution Overview
Problem
Existing dishwasher technologies do not provide intuitive notifications for replacing air filters based on time of use or number of uses, making it difficult for users to determine when filters need replacement, and they lack mobile terminal notifications.
Innovation Solution
A dishwasher system that accumulates the operation time of its air blowing fan and counts the number of drying processes to determine when a filter needs replacement, displaying notifications on the dishwasher's display and optionally sending alerts to mobile terminals, with the notification mode changing based on the filter's status and usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the filter state is merely displayed as in related art, then the system complexity is low, but the user cannot intuitively know when the filter needs replacement
Solution Approach 1:
The system implements feedback by continuously monitoring filter operation time and usage count, then providing notifications to the user when replacement is needed. The notification is sent to both the display and mobile terminal, creating a closed-loop feedback system that informs users of the filter status and triggers replacement action.
Solution Approach 2:
A notification module acts as an intermediary between the filter monitoring system and the user. This intermediary processes the raw data about filter usage and transforms it into meaningful notifications that are easily understood by users, bridging the gap between system data and user comprehension.
2Loss of information
If notifications are sent to mobile terminals as in the present invention, then user awareness of filter replacement is improved, but communication energy consumption increases
Solution Approach 1:
The system performs preliminary action by sending notifications in advance before the filter becomes completely ineffective. The notification is triggered when the filter reaches a predetermined usage threshold, allowing users to replace the filter proactively before performance degradation occurs, rather than waiting for failure.
Solution Approach 2:
The system changes parameters by monitoring both operation time and usage count, and by adjusting notification delivery based on these parameters. The notification is sent when either parameter reaches its threshold, allowing flexible adaptation to different usage patterns and reducing unnecessary communications.
3Loss of information
If the notification is continuously displayed as in the present invention, then user awareness is maximized, but the display energy consumption increases
Solution Approach 1:
The display shows notifications periodically or in cycles rather than continuously. The notification appears at predetermined intervals or when specific conditions are met, reducing the time the display needs to remain active while still ensuring user awareness. This periodic display approach balances visibility requirements with energy conservation.
Data Source
AI summary
A dishwasher performs a method for providing a notification for replacing a filter. The dishwasher continues to accumulate operation time of an air blowing fan of the dishwasher, and when total accumulative operation time is predetermined time or greater, outputs a notification for replacing a filter through a display or a speaker to determine the timing of the replacement of the filter accurately.