Method for identifying brush type, cleaning device and storage medium
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Solution Overview
Problem
Existing cleaning devices face low accuracy in automatically identifying the type of electric brushes, leading to potential safety hazards due to inadequate fault protection.
Innovation Solution
A method and apparatus for identifying a brush type in cleaning devices, involving acquiring a detection voltage less than the starting voltage of the brush motor, determining the first impedance, and correlating it with stored impedance and brush type data to improve accuracy and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automatic brush type identification is implemented, then brush type identification capability is provided, but identification accuracy is low leading to safety hazards
Solution Approach 1:
The patent applies parameter changes by utilizing impedance as a detection parameter to identify brush types. Different brush types (mattress brush, sofa brush, floor brush, carpet brush, mite removal brush, filter element cleaning brush) have different impedance characteristics. The system measures impedance values and compares them against stored reference values to accurately determine the connected brush type, thereby improving identification accuracy and ensuring appropriate fault protection settings for each brush type.
2Reliability
If different fault protection currents and voltages are set for different brush types, then protection effectiveness is improved, but system complexity increases
Solution Approach 1:
The patent implements feedback by automatically detecting brush type through impedance measurement and using this information to dynamically adjust fault protection parameters. The system measures impedance, identifies the brush type based on the measured value, and then sets appropriate protection currents and voltages for that specific brush type. This closed-loop feedback mechanism eliminates the need for manual configuration of multiple protection parameters, reducing system complexity while maintaining high protection effectiveness.
Solution Approach 2:
The system applies self-service by automatically performing brush type identification and protection parameter setting without user intervention. The cleaning device autonomously measures impedance, determines the brush type, and configures the appropriate fault protection parameters based on the identified brush type, thereby simplifying operation and ensuring proper protection for each brush type.
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
The method enhances the accuracy of brush type identification, ensuring timely protection and improving safety by determining the brush type based on impedance, thus preventing potential hazards during operation.
Implementation Method 1
acquiring a first impedance of the brush motor, in response to inputting the detection voltage to the brush motor; and determining a brush type corresponding to the brush motor based on the first impedance and a correspondence between impedances and brush types stored
Data Source
AI summary
A method for identifying a brush type of a cleaning device includes: acquiring a detection voltage of a brush motor, the detection voltage being less than a starting voltage of the brush motor; acquiring a first impedance of the brush motor, in response to inputting the detection voltage to the brush motor; and determining a brush type corresponding to the brush motor based on the first impedance and a correspondence between impedances and brush types stored.