Air purifier
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Solution Overview
Problem
Existing air purifiers lack dynamic performance indicators that accurately reflect real-time adjustments in fan speed and settings, leading to inaccurate calculations of time required to achieve target air quality levels.
Innovation Solution
A method that calculates the expected time to achieve a target pollution level by acquiring current pollution and air flow speed, comparing it to predetermined targets, and indicating the time required to reach clean air, using sensors and a processor to continuously update these calculations based on current settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If air purifier performance is calculated based on past performance indicators, then the calculation is simple, but the accuracy deteriorates when fan speed or settings change
Solution Approach 1:
The patent transitions from static past-performance-based calculations to dynamic real-time calculations that continuously update based on current fan speed and pollution level readings. The system dynamically adjusts performance indicators to reflect current operating conditions, resolving the contradiction between calculation simplicity and accuracy under changing settings.
Solution Approach 2:
The patent implements a feedback mechanism where current pollution levels and air flow speed are continuously measured and fed back into the calculation algorithm. This real-time feedback loop ensures that performance indicators accurately reflect current purifier efficiency, even when settings change, while maintaining computational feasibility through standardized calculation methods.
2Measurement precision
If real-time pollution monitoring and dynamic time calculation are implemented, then accuracy improves, but device complexity increases
Solution Approach 1:
The air purifier autonomously monitors its own performance by integrating pollution sensors and air flow measurements into its control system. The device self-calibrates and self-evaluates its purification efficiency in real-time, providing accurate time-to-target calculations without requiring external monitoring equipment or complex external processing systems.
Solution Approach 2:
The patent integrates multiple functions into the air purifier's control system: pollution sensing, air flow measurement, real-time calculation of time to target, and dynamic adjustment of performance indicators. This multi-functionality approach achieves high measurement precision while avoiding the complexity of separate dedicated systems for each function.
Data Source
AI summary
A method for indicating to a user the expected time for an air purifier to achieve a target level of pollution in a room by:(A) acquiring the current level of pollution (CP) in said room;(B) acquiring current air flow speed (CAFS) through said air purifier;(C) comparing the current level of pollution (CP) with a pre-determined target level of pollution (IP);(D) calculating the expected time (T) required to reduce current pollution (CP) to said target level of pollution (IP) at current air flow speed (CAFS);(E) indicating said expected time (T) required to reduce current pollution to said target level of pollution at current air flow speed to a user; and(F) repeating steps (A) to (E).