A method, device and system for automatically judging the service life of a filter

An automatic judgment and filter technology, applied in the field of automation, can solve the problems of inconvenience and inability to accurately determine the cleaning or replacement time of the filter, and achieve the effect of convenient use.
CN104390322BActive Publication Date: 2017-03-01GREE ELECTRIC APPLIANCES INC
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCES INC
Publication Date
2017-03-01

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Patent Text Reader

Abstract

The invention discloses an automatic judging method, device and system for the service life of a filter screen. According to the automatic judging method, device and system, a wind speed sensor is used for detecting the wind speed change, the fouling and blockage situations of the filter screen are judged according to the attenuation rate of the wind speed, because an air conditioner fan has a fixed wind speed under each of different wind gears, the wind speed would be gradually reduced along with the dirtying and blockage of the filter screen, after the wind speed is reduced to a certain degree, different degrees of warnings are given to the user. Compared with the prior art, the automatic judging method, device and system for the service life of the filter screen solve the dependency on air quality level, do not need air quality detection cost and do not need the user to set manually according to the local air quality level, and therefore, the problem of imprecision due to judging according to the air quality level is solved, and moreover, the user does not need to manually set the air quality level and manually clear the accumulated time; the automatic judging method, device and system for the service life of the filter screen are more intelligent and more friendly to human and very convenient for the user.
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Description

technical field

[0001] The invention relates to the technical field of automation, in particular to a method, device and system for automatically judging the service life of a filter net. Background technique

[0002] The filter screen of the air conditioner needs to be cleaned or replaced after a period of use. The existing fresh air fan filter screen cleaning reminder basically pre-sets the air pollution level, and roughly judges whether the filter screen has reached the cleaning level based on the accumulated use time. Due to the pollution in the air Things are very complicated, the air quality in some areas changes in real time, and there are many factors that affect the life of the filter, so this method can only be used as a simple reference, and it cannot accurately determine the cleaning or replacement time of the filter, and after cleaning or replacing , it is very inconvenient to manually clear the accumulated usage time.

[0003] Because cleaning or replacing the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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