Method and device for controlling self-cleaning of air conditioner
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Solution Overview
Problem
Existing air conditioner self-cleaning methods rely solely on booting duration, failing to account for operation status and air quality, leading to delayed or premature cleaning, which affects performance and user experience.
Innovation Solution
A method and device that acquire operation duration, status parameters, and air quality parameters to calculate an equivalent operation duration, triggering self-cleaning when this duration exceeds a threshold, using formulas like T=τ*(α*tH+β*tM+γ*tL) to integrate wind speed gear operations and indoor air quality coefficients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If self-cleaning is controlled based solely on booting duration, then the control method is simple, but the cleaning timing is inaccurate leading to delayed or premature cleaning
Solution Approach 1:
The patent transforms the single parameter control (booting duration) into multi-parameter control by introducing operation status parameters (wind speed gear coefficients α, β, γ) and air quality parameters (air time coefficient τ). The equivalent operation duration T=τ*(α*tH+β*tM+γ*tL) dynamically adjusts the cleaning threshold based on actual operating conditions, achieving accurate cleaning timing while maintaining controllable complexity through standardized calculation procedures.
2Measurement precision
If multiple parameters are used to determine cleaning timing, then cleaning accuracy improves, but system complexity increases
Solution Approach 1:
The patent segments the operation duration into three distinct wind speed gear components (high gear tH, medium gear tM, low gear tL), each weighted by its respective coefficient (α, β, γ). This segmentation allows the system to account for different dust accumulation rates at different operating speeds while maintaining clear, separate tracking of each gear's contribution, making the complex multi-parameter system manageable through modular calculation.
Solution Approach 2:
The patent introduces the concept of 'equivalent operation duration' T as an intermediary parameter that synthesizes multiple input parameters (operation durations at different gears, air quality conditions) into a single standardized metric. This intermediary simplifies the control logic by providing a unified threshold comparison (T > cleaning threshold) while implicitly incorporating the complexity of multiple parameters through the calculation formula T=τ*(α*tH+β*tM+γ*tL).
Data Source
AI summary
A method and a device for controlling self-cleaning of an air conditioner are provided. The method comprises: acquiring operation duration, operation status parameters and air quality parameters of an air conditioner; determining an equivalent operation duration for the air conditioner according to the operation duration, operation status parameters and air quality parameters of the air conditioner; and controlling the air conditioner to perform self-cleaning when the equivalent operation duration for the air conditioner is greater than a cleaning duration threshold value. The method may prevent a problem of delayed cleaning or premature cleaning of the air conditioner which is caused by pre-estimating a self-cleaning frequency merely according to one variable which is a booting duration.