Parameter detecting method and apparatus for air purifier

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Solution Overview

Problem

Existing air purifiers lack effective methods for measuring purification parameters, making it difficult to assess and improve their performance.

Innovation Solution

A parameter detecting method and apparatus for air purifiers that acquire and output air quality parameters from both the intake and discharge areas, using air quality detecting devices and a control interface, and adjust fan speed and operation modes based on calculated purification parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If air quality parameters are measured at both intake and discharge areas, then purification performance measurement capability is improved, but device complexity increases

Engineering Contradiction:
Improvepurification performance measurement capabilityVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The measurement system is segmented into two independent air quality detecting devices: one positioned at the air intake area and another at the air discharge area. Each device independently measures air quality parameters, and the purification performance is calculated by comparing the differential data between the two locations. This segmentation enables comprehensive purification measurement without requiring a single complex integrated system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A processor acts as an intermediary that receives air quality parameter data from both detecting devices, calculates the purification performance based on the differential measurement, and outputs the results. This intermediary component simplifies the overall system architecture by centralizing the computation logic rather than requiring direct integration between multiple sensors.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If air quality detecting devices are deployed at both intake and discharge areas, then purification parameter detection accuracy is improved, but cost increases

Engineering Contradiction:
Improvepurification parameter detection accuracyVSAvoidcost
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The air quality detecting devices are designed with multi-functionality to detect multiple air quality parameters simultaneously (such as PM2.5, PM10, temperature, humidity, and other pollutants). By using universal detecting devices that can measure various parameters, the system achieves high purification detection accuracy without proportionally increasing the quantity of specialized sensors required.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3173707B1Parameter detecting method and apparatus for air purifier
Publication Date: 2019.08.28 XIAOMI INC
  • EP3173707B1 patent drawingFigure 1~2
  • EP3173707B1 patent drawingFigure 3
  • EP3173707B1 patent drawingFigure 4

AI summary

The present invention relates to a parameter detecting method and apparatus for an air purifier, a terminal, a computer program and a recording medium. The method comprises: acquiring at least one air quality parameter of an air intake area of an air purifier and at least one air quality parameter of an air discharging area of the air purifier; determining a purification parameter corresponding to the air quality parameter of the air intake area and the air quality parameter of the air discharging area; and outputting the purification parameter. By applying the embodiment of the present invention, where at least one air quality parameter of an air intake area of an air purifier and at least one air quality parameter of an air discharging area of the air purifier are acquired and then a purification parameter corresponding to the at least one air quality parameter of the air intake area and the at least one air quality parameter of the air discharging area is determined and output, the purification parameter can be detected quickly and accurately. Accordingly, the purification performance of the air purifier can be acquired quickly and accurately, thereby providing reliable bases for controlling and improving the air purifier.