Method and system for reminding replacement of filter of vacuum cleaner and vacuum cleaner
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Solution Overview
Problem
Vacuum cleaners face issues with dust accumulation on filters, leading to reduced ventilation and increased motor power, which can cause power loss and safety risks, requiring manual filter replacement by users.
Innovation Solution
A method and system that automatically remind users to replace the vacuum cleaner filter by monitoring the rotating speed difference of the motor over a set time interval and comparing it to a preset threshold, using a controller and reminding apparatus to alert the user when the filter needs replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the motor rotating speed is increased to maintain ventilation effect when filter is blocked, then the ventilation effect is maintained, but the power loss increases and safety risks arise
Solution Approach 1:
The system continuously monitors the motor rotating speed and compares it with the initial speed to calculate speed difference. When the speed difference exceeds a threshold, the system provides feedback to remind users to replace the filter, creating a closed-loop control system that prevents excessive power consumption and energy loss
Solution Approach 2:
The system performs preliminary monitoring of motor speed changes before significant power loss occurs. By detecting the speed difference early and providing timely reminders, the system enables users to replace the filter proactively, preventing the motor from operating in a high-power loss state
2Reliability
If manual filter replacement is implemented after a set time interval, then the filter is replaced regularly, but the operating burden on users increases and user experience deteriorates
Solution Approach 1:
The vacuum cleaner performs self-monitoring of its own filter status by detecting motor speed changes. The system automatically determines when filter replacement is needed and provides reminders to users, eliminating the need for manual tracking and reducing user burden while maintaining reliable filter maintenance
Solution Approach 2:
The system replaces manual time-based replacement schedules with an intelligent detection system that uses motor speed monitoring and automated logic to determine filter status. This substitutes mechanical/time-based operation with electronic sensing and automated control, improving both reliability and ease of operation
3Device complexity
If no automatic reminder system is implemented, then the system remains simple, but the motor and vacuum cleaner cannot be used normally and power loss increases
Solution Approach 1:
The controller performs multiple functions: it controls motor operation, monitors speed parameters, calculates speed differences, compares with thresholds, and provides user reminders. By making the controller multi-functional, the system achieves reliable operation without adding separate dedicated components for each function, thus limiting complexity growth
Data Source
AI summary
The present disclosure discloses a method for reminding a replacement of a filter of a vacuum cleaner, including: obtaining a rotating speed difference of a motor within a set time interval; comparing, according to a working parameter of the vacuum cleaner, the rotating speed difference with a preset rotating speed difference threshold, to obtain a comparison result; and determining whether to remind a user to replace the filter according to the comparison result. With the method provided by the present disclosure, the vacuum cleaner may timely and automatically remind the user to replace the filter during the use of the vacuum cleaner, thereby reducing power loss, maintaining the normal use of the vacuum cleaner, and prolonging the service life of the motor.