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Method for improving precision of dust detection sensor

A dust detection and sensor technology, applied in the field of sensors, can solve problems such as the reduction of dust sensor accuracy, and achieve the effect of improving measurement accuracy and measurement stability

Active Publication Date: 2020-05-12
TIANKE INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The invention provides a method for improving the precision of dust detection sensors, which is used to solve the technical problem of dust sensor precision reduction caused by dust adhesion

Method used

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  • Method for improving precision of dust detection sensor
  • Method for improving precision of dust detection sensor
  • Method for improving precision of dust detection sensor

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Embodiment Construction

[0047] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0048] Please refer to figure 1 and figure 2 , figure 1 It is a logic block diagram among the various systems of the vacuum cleaner of this application; figure 2 It is a logical block diagram of some modules inside the vacuum cleaner of this application;

[0049] The present application provides a handheld vacuum cleaner, including: a vacuum cleaner display system 100 , a dust detection system 200 , an air pressure detection and protection system 300 , a speed control system 400 , a motor drive system 500 and a ...

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Abstract

The invention relates to the field of sensors, in particular to a method for improving the precision of a dust detection sensor. The method comprises the following steps: providing an electric drive VT with a determined numerical value for an emitter of the dust detection sensor in a calibration working environment; receiving a detection electric signal VR output by a receiver of the dust detection sensor; comparing the numerical value of the detection electric signal VR with the numerical value of a preset reference signal VS, and judging whether the difference value of the two numerical values is within a preset range or not. Compared with the prior art, the sensitivity of the dust detection sensor is calibrated in real time in the dust concentration detection process, the dust sensor isprevented from working at an improper measurement curve position, and therefore the measurement precision and the measurement stability of the dust detection sensor are effectively improved.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a method for improving the precision of a dust detection sensor. Background technique [0002] The vacuum cleaner dust sensor is a device used to detect parameters such as dust concentration and dust particle diameter in vacuum cleaners and other equipment. [0003] At present, the commonly used dust sensor uses infrared rays to detect dust; the detection principle is: one side of the sensor emits infrared light, and the other side receives infrared light. When the passage of dust is detected, the intensity of light received by the sensor will be reduced because the dust blocks the infrared light. The analog voltage and digital waveform output by the receiving circuit inside the vacuum cleaner change accordingly, and dust conditions such as dust concentration or dust particle diameter can be detected. [0004] When the above-mentioned dust sensor is used to detect dust, the sensitivity a...

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Application Information

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IPC IPC(8): A47L9/28
CPCA47L9/2805
Inventor 樊康周德化陈勇舒超王文权
Owner TIANKE INTELLIGENT TECH CO LTD
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