Automatic monitor for dust on filter net of air purifier

Abstract

The invention discloses an automatic monitor for dust on a filter net of an air purifier. The automatic monitor comprises an array type photoelectric sensor, a signal modulating circuit, a multi-channel ADC (Analog-Digital Converter), a processor, a display module, an input module, a sound-light alarm module, a clock module and a power supply module, wherein the input module is used for inputting a dust threshold value to the processor; the clock module is used for inputting a monitoring signal to the processor at a preset time point; the array type photoelectric sensor is arranged on a to-be-detected filter net and is used for outputting a modulated dust strength signal to the processor after processing a dust strength signal of the filter net through the signal modulating circuit and the multi-channel ADC in sequence; the processor is used for judging whether the modulated dust strength signal exceeds the preset dust threshold value or not when the modulated dust strength signal and a monitoring signal are received, driving the sound-light alarm module to alarm if the modulated dust strength signal exceeds the preset dust threshold value, and outputting the modulated dust strength signal to the display module. According to the automatic monitor disclosed by the invention, the dust on the filter net of the air purifier can be automatically monitored.

Description

technical field [0001] The invention relates to the technical field of air purifiers, in particular to an automatic dust monitor for filter screens of air purifiers. Background technique [0002] With the continuous change of global climate and the frequent appearance of various extreme climates, air purifiers have become an indispensable household appliance in people's daily life. However, a large amount of dust, bacteria and mold will accumulate on the filter screen inside the frequently used air purifier, which is not conducive to ventilation and affects the heating or cooling effect, and is not conducive to human health. According to the data from the Chinese Center for Disease Control and Prevention, if the air purifier is seriously polluted, it will cause sub-health and various diseases. But this problem has not attracted enough attention of people, and many people do not have the habit of cleaning the filter screen frequently. [0003] With the improvement of people...

AI Technical Summary

Problems solved by technology

For users who are not familiar with the structure of the air purifier and those who are not proficient in cleaning the air purifier manually, this task becomes a burden when using the air purifier, or they can only entrust professional personnel to assist in the operation, or Simply ignore the problem that the filter screen after long-term use may pollute the air environment again, and continue to use the air purifier without cleaning it

As we all know, if the air purifier is used every day without regular cleaning, there will still be a lot of bacteria and dust on the filter, which will cause great harm to the human body and shorten the life of the machine

There is also a lack of equipment for automatic monitoring of dust on the filter screen in the prior art