CN112051305A - Filter screen replacement detection method and device, electrical equipment and storage medium - Google Patents
Filter screen replacement detection method and device, electrical equipment and storage medium Download PDFInfo
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- CN112051305A CN112051305A CN202010892249.3A CN202010892249A CN112051305A CN 112051305 A CN112051305 A CN 112051305A CN 202010892249 A CN202010892249 A CN 202010892249A CN 112051305 A CN112051305 A CN 112051305A
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 111
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 81
- 231100000719 pollutant Toxicity 0.000 claims abstract description 81
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000009825 accumulation Methods 0.000 claims abstract description 7
- 238000003331 infrared imaging Methods 0.000 claims description 52
- 238000012545 processing Methods 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 19
- 239000000356 contaminant Substances 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000006870 function Effects 0.000 description 6
- 239000000306 component Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000011109 contamination Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
Abstract
The invention relates to the technical field of electronic appliances, and discloses a filter screen replacement detection method, a filter screen replacement detection device, electric equipment and a storage medium, wherein the method comprises the following steps: acquiring pollutant shielding area data of a filter screen; acquiring the number of dust collecting areas from the data of the pollutant shielding area; comparing the number of the dust collecting areas with a preset first number threshold value and a preset second number threshold value; wherein the first number threshold is less than the second number threshold; when the number of the dust collecting areas is not greater than the first number threshold value, the filter screen is judged not to need to be replaced; when the number of the dust collecting areas is larger than a first number threshold value and smaller than a second number threshold value, judging that the filter screen is about to be replaced; and when the number of the dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately. The filter screen replacement detection method, the filter screen replacement detection device, the electrical equipment and the storage medium can detect the dust accumulation area of the filter screen and accurately judge whether the filter screen needs to be replaced according to the dust accumulation area.
Description
Technical Field
The invention relates to the technical field of electronic appliances, in particular to a filter screen replacement detection method and device, an electrical device and a storage medium.
Background
The filter screen is the core component of electrical equipment who has filtering capability, however along with the increase of live time, the pollutant accumulates on the filter screen and makes the filter resistance increase of filter screen, purification efficiency reduce, after the pollutant accumulation to a certain degree, need change the filter screen.
At present, the replacement of the filter screen generally adopts a mode of counting the accumulated use time, namely, a use time is set, and after the use time is exceeded, the filter screen is replaced by a user or an operation and maintenance person. However, the actual use condition of the filter screen is not considered in the replacement mode, the condition of pollutants accumulated on the filter screen cannot be known, and whether the filter screen needs to be replaced or not can not be accurately judged.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is as follows: the filter screen replacement detection method and device, the electrical equipment and the storage medium are provided, the dust collection area of the filter screen can be detected, and whether the filter screen needs to be replaced or not can be accurately judged according to the dust collection area.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a method for replacing a filter screen, which is applied to an electrical device including a fan and a filter screen, and the method includes:
acquiring first pollutant shielding area data of the filter screen;
acquiring the number of first dust collecting areas from the first pollutant shielding area data; the dust collecting area is an area with a corresponding pollutant shielding area larger than a preset area threshold;
comparing the number of the first dust collecting areas with a preset first number threshold and a preset second number threshold; wherein the first number threshold is less than the second number threshold;
when the number of the first dust collecting areas is not larger than the first number threshold value, the filter screen is judged not to need to be replaced, and the current rotating speed of the fan is kept unchanged;
when the number of the first dust collecting areas is larger than the first number threshold and smaller than the second number threshold, the filter screen is judged to be required to be replaced, and the rotating speed of the fan is increased to perform corresponding judgment processing on second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
and when the number of the first dust collecting areas is not less than the second number threshold value, the filter screen is judged to be required to be replaced immediately, and the rotating speed of the fan is increased so as to perform corresponding judgment processing on the third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted.
As a preferred scheme, the data of the pollutant shielding area of the filter screen is obtained through the following steps:
acquiring pollutant shielding area data of the filter screen through at least one infrared imaging sensor; wherein the contaminant occlusion area data comprises the first contaminant occlusion area data, the second contaminant occlusion area data, and the third contaminant occlusion area data.
As a preferable aspect, the method further includes:
acquiring the running time of the infrared imaging sensor;
comparing the running time with a preset first time threshold;
when the running time is greater than the first time threshold, shutting down the infrared imaging sensor;
maintaining operation of the infrared imaging sensor when the run time is not greater than the first time threshold.
As a preferred aspect, after shutting down the infrared imaging sensor, the method further comprises:
obtaining the shutdown time of the infrared imaging sensor;
comparing the shutdown time with a preset second time threshold;
when the shutdown time is greater than the second time threshold, starting the infrared imaging sensor;
maintaining the infrared imaging sensor off when the run time is not greater than the second time threshold.
As a preferred scheme, the increasing the rotation speed of the fan is to perform corresponding judgment processing on the data of the second pollutant shielding area of the filter screen after the adjustment of the rotation speed of the fan, and specifically includes:
increasing the rotation speed of the fan according to r' ═ r + m 1; wherein r' is the rotating speed of the fan after adjustment, r is the rotating speed of the fan before adjustment, m1 is a preset first rotating speed adjustment threshold, and m1 is greater than 0;
after a preset third time threshold value, acquiring second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
acquiring the number of second dust collecting areas from the second pollutant shielding area data;
comparing the number of second dust accumulation areas with the first number threshold and the second number threshold;
when the number of the second dust collecting areas is not larger than the first number threshold value, the filter screen is judged not to need to be replaced, and the current rotating speed of the fan is kept unchanged;
when the number of the second dust collecting areas is larger than the first number threshold and smaller than the second number threshold, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the number of the second dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
As a preferred scheme, the increasing the rotation speed of the fan is to perform corresponding judgment processing on the third pollutant shielding area data of the filter screen after the adjustment of the rotation speed of the fan, and specifically includes:
increasing the rotation speed of the fan according to r' ═ r + m 2; wherein r' is the rotating speed of the fan after adjustment, r is the rotating speed of the fan before adjustment, m2 is a preset second rotating speed adjustment threshold, and m2 is greater than 0;
after a preset fourth time threshold value, acquiring third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
acquiring the number of third dust collecting areas from the third pollutant shielding area data;
comparing the number of the third dust collection area with the first number threshold and the second number threshold;
when the number of the third dust collecting areas is not larger than the first number threshold value, judging that the filter screen does not need to be replaced, and maintaining the current rotating speed of the fan unchanged;
when the number of the third dust collecting areas is larger than the first number threshold and smaller than the second number threshold, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the number of the third dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
As a preferable aspect, the method further includes:
when the filter screen is judged not to be replaced, sending filter screen replacement-free information to a user terminal, or sending replacement information to the user terminal;
when the filter screen is judged to be required to be replaced, sending filter screen pre-replacement information to the user terminal;
and when the filter screen is judged to need to be replaced immediately, sending filter screen replacement information to the user terminal.
In order to solve the above technical problem, in a second aspect, the present invention provides a filter screen replacement detection device, which is applied to an electrical apparatus including a fan and a filter screen, and includes:
the first acquisition module is used for acquiring first pollutant shielding area data of the filter screen;
the second acquisition module is used for acquiring the number of the first dust collecting areas from the first pollutant shielding area data; the dust collecting area is an area with a corresponding pollutant shielding area larger than a preset area threshold;
the comparison module is used for comparing the number of the first dust collecting areas with a preset first number threshold and a preset second number threshold; wherein the first number threshold is less than the second number threshold;
the first judging module is used for judging that the filter screen does not need to be replaced when the number of the first dust collecting areas is not larger than the first number threshold value, and keeping the current rotating speed of the fan unchanged;
the second judging module is used for judging that the filter screen is about to be replaced when the number of the first dust collecting areas is larger than the first number threshold and smaller than the second number threshold, and increasing the rotating speed of the fan so as to correspondingly judge and process second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
and the third judging module is used for judging that the filter screen needs to be replaced immediately when the number of the first dust collecting areas is not less than the second number threshold value, and increasing the rotating speed of the fan so as to perform corresponding judgment processing on the third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted.
In order to solve the technical problem, in a third aspect, an embodiment of the present invention provides an electrical apparatus, which includes a blower, a filter, a memory, a processor, and a computer program stored in the memory and configured to be executed by the processor, and when the computer program is executed, the method for detecting filter replacement according to any one of the first aspect is implemented.
In order to solve the above technical problem, in a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed, implements the method for detecting filter screen replacement according to any one of the first aspect.
Compared with the prior art, the filter screen replacement detection method, the filter screen replacement detection device, the electrical equipment and the storage medium provided by the embodiment of the invention have the beneficial effects that: the data of the pollutant shielding area of the filter screen is obtained through the infrared imaging sensor, the number of dust collecting areas is further obtained, and the pollution degree of the filter screen can be detected in real time when the infrared imaging sensor is started; comparing the number of the dust collecting areas with a preset first number threshold and a preset second number threshold, and judging the pollution degree of the filter screen; whether the filter screen needs to be replaced is judged according to the pollution degree, so that the filter screen is ensured to be replaced timely and accurately; when the filter screen pollution degree does not reach the degree that needs to be changed, the rotational speed of fan is increased according to predetermined rotational speed adjustment rule, can reduce the filter screen pollution degree, improves the availability factor and the life of filter screen.
Drawings
In order to more clearly illustrate the technical features of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is apparent that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on the drawings without inventive labor.
FIG. 1 is a schematic flow chart diagram of a preferred embodiment of a method for detecting filter screen replacement according to the present invention;
FIG. 2 is a schematic structural view of a preferred embodiment of a filter screen replacement detection apparatus provided in the present invention;
fig. 3 is a schematic structural diagram of a preferred embodiment of an electrical apparatus provided in the present invention.
Detailed Description
In order to clearly understand the technical features, objects and effects of the present invention, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. Other embodiments, which can be derived by those skilled in the art from the embodiments of the present invention without inventive step, shall fall within the scope of the present invention.
In the description of the present invention, it should be understood that the numbers themselves, such as "first", "second", etc., are used only for distinguishing the described objects, and do not have technical meaning, and cannot be understood as defining or implying importance of the described objects.
Fig. 1 is a schematic flow chart of a preferred embodiment of the present invention.
As shown in fig. 1, the method includes:
fig. 1 is a schematic flow chart illustrating a method for detecting filter screen replacement according to a preferred embodiment of the present invention.
As shown in fig. 1, the method includes:
s11: acquiring first pollutant shielding area data of the filter screen;
s12: acquiring the number of first dust collecting areas from the first pollutant shielding area data; the dust collecting area is an area with a corresponding pollutant shielding area larger than a preset area threshold;
s13: comparing the number of the first dust collecting areas with a preset first number threshold and a preset second number threshold; wherein the first number threshold is less than the second number threshold;
s14: when the number of the first dust collecting areas is not larger than the first number threshold value, the filter screen is judged not to need to be replaced, and the current rotating speed of the fan is kept unchanged;
s15: when the number of the first dust collecting areas is larger than the first number threshold and smaller than the second number threshold, the filter screen is judged to be required to be replaced, and the rotating speed of the fan is increased to perform corresponding judgment processing on second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
s16: and when the number of the first dust collecting areas is not less than the second number threshold value, the filter screen is judged to be required to be replaced immediately, and the rotating speed of the fan is increased so as to perform corresponding judgment processing on the third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted.
The method is applied to electrical equipment comprising a fan and a filter screen.
As can be understood by those skilled in the art, the first number threshold and the second number threshold may be set according to the use requirement of the filter screen when the product leaves the factory or according to the requirement of the user, as long as the first number threshold is smaller than the second number threshold within a reasonable range; the area threshold may also be set according to the actual mesh number of the filter, and if the mesh number of the filter is N, the area corresponding to the mesh number of 5N or other mesh numbers may be set as the area threshold (i.e., when each mesh area is S, the area threshold may be 5 NS).
Specifically, the first pollutant blocking area in this embodiment is in a block shape (not connected), the area may be calculated by using a related algorithm in the prior art, and the number of the first dust collecting areas may be determined by the pollutant blocking area corresponding thereto, after the number of the first dust collecting areas is calculated, the first dust collecting areas are compared with a preset first number threshold and a preset second number threshold, when the number of the first dust collecting areas is not greater than the first number threshold, it is indicated that the pollution degree of the filter screen is low at this time, and it is further determined that the filter screen does not need to be replaced, and the current rotation speed of the fan is maintained unchanged; when the number of the first dust collecting areas is larger than the first number threshold and smaller than the second number threshold, indicating that the filter screen is in the pollution degree at the moment, further judging that the filter screen is about to be replaced, increasing the rotating speed of the fan and reducing the pollution degree of the filter screen, and performing corresponding judgment processing on second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted; when the number of the first dust collecting areas is not smaller than the second number threshold value, the pollution degree of the filter screen is high at the moment, the filter screen is further judged to be required to be replaced immediately, the rotating speed of the fan is increased, the pollution degree of the filter screen is reduced, and corresponding judgment processing is carried out on third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted.
In this embodiment, the number of the first dust collecting areas is compared with a preset first number threshold and a preset second number threshold, so that the degree of pollution of the filter screen can be judged; whether the filter screen needs to be replaced can be judged according to the pollution degree of the filter screen, and timely replacement and accurate replacement of the filter screen are ensured; the pollution degree of filter screen reaches when being about to need to change or the pollution degree that needs to change immediately, according to the rotational speed of predetermined rotational speed adjustment rule increase fan, can reduce the pollution degree of filter screen improves the availability factor and the life of filter screen.
In a preferred embodiment, the data of the pollutant shielding area of the filter screen is obtained by the following steps:
acquiring pollutant shielding area data of the filter screen through at least one infrared imaging sensor; wherein the contaminant occlusion area data comprises the first contaminant occlusion area data, the second contaminant occlusion area data, and the third contaminant occlusion area data.
Wherein, the infrared imaging sensor is a high-resolution infrared imaging sensor, the resolution of the infrared imaging sensor is not less than 120 x 90, and the imaging coverage area of the infrared imaging sensor is not less than 30% of the area of the filter screen.
Particularly, infrared imaging sensor is used for detecting the pollution degree of filter screen, it can set up filter screen position is inboard, shelters from area data to the filter screen pollutant when opening and carries out real-time detection, and its and electrical equipment's control module adopt serial ports or II2C communication mode.
In a preferred embodiment, the method further comprises:
acquiring the running time of the infrared imaging sensor;
comparing the running time with a preset first time threshold;
when the running time is greater than the first time threshold, shutting down the infrared imaging sensor;
maintaining operation of the infrared imaging sensor when the run time is not greater than the first time threshold.
As a refinement of the above embodiment, after shutting down the infrared imaging sensor, the method further comprises:
obtaining the shutdown time of the infrared imaging sensor;
comparing the shutdown time with a preset second time threshold;
when the shutdown time is greater than the second time threshold, starting the infrared imaging sensor;
maintaining the infrared imaging sensor off when the run time is not greater than the second time threshold.
The first time threshold and the second time threshold can be set according to the use requirement of the infrared imaging sensor when a product leaves a factory or according to the requirement of a user.
Specifically, in order to prolong the service life of the infrared imaging sensor and reduce energy consumption and cost, the infrared imaging sensor adopts a working mode of alternately starting and stopping.
In a preferred embodiment, the increasing the rotation speed of the fan to perform corresponding judgment processing on the data of the second pollutant shielding area of the filter screen after the adjustment of the rotation speed of the fan specifically includes:
increasing the rotation speed of the fan according to r' ═ r + m 1; wherein r' is the rotating speed of the fan after adjustment, r is the rotating speed of the fan before adjustment, m1 is a preset first rotating speed adjustment threshold, and m1 is greater than 0;
after a preset third time threshold value, acquiring second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
acquiring the number of second dust collecting areas from the second pollutant shielding area data;
comparing the number of second dust accumulation areas with the first number threshold and the second number threshold;
when the number of the second dust collecting areas is not larger than the first number threshold value, the filter screen is judged not to need to be replaced, and the current rotating speed of the fan is kept unchanged;
when the number of the second dust collecting areas is larger than the first number threshold and smaller than the second number threshold, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the number of the second dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
Wherein the third time threshold is smaller than the first time threshold to ensure that the infrared imaging sensor is kept on during adjustment, and the first rotation speed adjustment threshold can be set within a reasonable range (for example, the rotation speed threshold of the fan cannot be exceeded).
Particularly, when the filter screen is about to need to be changed, this embodiment provides a relief measure, reduces the pollution degree of filter screen through the rotational speed of increase fan to again keep on further judgement processing to pollutant sheltering area data after the adjustment, can improve the accuracy of judgement.
Optionally, the fan speed may be adjusted and determined multiple times.
In a preferred embodiment, the increasing the rotation speed of the fan to perform corresponding judgment processing on the data of the third pollutant shielding area of the filter screen after the adjustment of the rotation speed of the fan specifically includes:
increasing the rotation speed of the fan according to r' ═ r + m 2; wherein r' is the rotating speed of the fan after adjustment, r is the rotating speed of the fan before adjustment, m2 is a preset second rotating speed adjustment threshold, and m2 is greater than 0;
after a preset fourth time threshold value, acquiring third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
acquiring the number of third dust collecting areas from the third pollutant shielding area data;
comparing the number of the third dust collection area with the first number threshold and the second number threshold;
when the number of the third dust collecting areas is not larger than the first number threshold value, judging that the filter screen does not need to be replaced, and maintaining the current rotating speed of the fan unchanged;
when the number of the third dust collecting areas is larger than the first number threshold and smaller than the second number threshold, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the number of the third dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
Similarly, the fourth time threshold is smaller than the first time threshold to ensure that the infrared imaging sensor remains turned on during the adjustment period, the second rotation speed adjustment threshold is larger than the first rotation speed adjustment threshold, and the second rotation speed adjustment threshold may be set within a reasonable range (e.g., larger than the first rotation speed adjustment threshold and not exceeding the rotation speed threshold of the fan).
When the filter screen needs to be replaced immediately, the embodiment also provides a relief measure, the pollution degree of the filter screen is reduced by increasing the rotating speed of the fan, the data of the pollutant shielding area is continuously judged and processed further after adjustment, and the judgment accuracy can be improved.
Optionally, the fan speed may be adjusted and determined multiple times.
It will be appreciated that when the degree of contamination of the screen is high, a greater fan speed than in the degree of contamination is required to reduce the degree of contamination.
In a preferred embodiment, the method further comprises:
when the filter screen is judged not to be replaced, sending filter screen replacement-free information to a user terminal, or sending replacement information to the user terminal;
when the filter screen is judged to be required to be replaced, sending filter screen pre-replacement information to the user terminal;
and when the filter screen is judged to need to be replaced immediately, sending filter screen replacement information to the user terminal.
Specifically, when the filter screen is polluted to a high degree and needs to be replaced immediately or is about to need to be replaced, the replacement information should be sent to the user terminal, so that a user can replace the filter screen by himself or notify an operation and maintenance worker to replace the filter screen; when the pollution degree of the filter screen is low and the filter screen does not need to be replaced, the filter screen can be selected to send the information which does not need to be replaced to the user terminal or directly send the information which does not need to be replaced to the user terminal.
In a preferred embodiment, the method further comprises:
and displaying the dust collecting area on the user terminal.
The dust collecting area can be displayed on the user terminal in an image form or the number of the dust collecting area can be displayed on the user terminal in a numerical value form, so that a user can know the use condition of the filter screen conveniently.
According to the filter screen replacement detection method provided by the embodiment of the invention, the data of the pollutant shielding area of the filter screen is obtained through the infrared imaging sensor, and the number of the dust collecting areas is further obtained, so that the pollution degree of the filter screen can be detected in real time when the infrared imaging sensor is started; comparing the number of the dust collecting areas with a preset first number threshold and a preset second number threshold, and judging the pollution degree of the filter screen; whether the filter screen needs to be replaced is judged according to the pollution degree, so that the filter screen is ensured to be replaced timely and accurately; when the filter screen pollution degree does not reach the degree that needs to be changed, the rotational speed of fan is increased according to predetermined rotational speed adjustment rule, can reduce the filter screen pollution degree, improves the availability factor and the life of filter screen.
It should be understood that all or part of the processes of the filter screen replacement detection method may be implemented by a computer program, which may be stored in a computer readable storage medium and executed by a processor, so as to implement the steps of the filter screen replacement detection method. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
Fig. 2 is a schematic structural diagram of a preferred embodiment of a filter screen replacement detection device according to the present invention, which is capable of implementing all processes of the filter screen replacement detection method according to any one of the above embodiments.
As shown in fig. 2, the apparatus includes:
the first acquisition module 21 is configured to acquire first pollutant blocking area data of the filter screen;
a second obtaining module 22, configured to obtain the number of first dust collecting areas from the first pollutant blocking area data; the dust collecting area is an area with a corresponding pollutant shielding area larger than a preset area threshold;
the comparison module 23 is used for comparing the number of the first dust collecting areas with a preset first number threshold and a preset second number threshold; wherein the first number threshold is less than the second number threshold;
the first judging module 24 is configured to judge that the filter screen does not need to be replaced when the number of the first dust collecting areas is not greater than the first number threshold, and maintain the current rotation speed of the fan unchanged;
a second determination module 25, configured to determine that the filter screen is about to be replaced when the number of the first dust collecting areas is greater than the first number threshold and smaller than the second number threshold, and increase the rotation speed of the fan to perform corresponding determination processing on second pollutant shielding area data of the filter screen after the rotation speed of the fan is adjusted;
and a third determination module 26, configured to determine that the filter screen needs to be replaced immediately when the number of the first dust collection areas is not less than the second number threshold, and increase the rotation speed of the fan so as to perform corresponding determination processing on the third pollutant shielding area data of the filter screen after the rotation speed of the fan is adjusted.
The device is applied to electrical equipment comprising a filter screen and a fan.
Specifically, in this embodiment, the first pollutant blocking area obtained by the first obtaining module 21 is in a block shape (is not connected), the area can be calculated by using a related algorithm in the prior art, the number of the first dust collecting areas obtained by the second obtaining module 22 can be determined by the pollutant blocking area corresponding to the first dust collecting area, after the number of the first dust collecting areas is calculated, the comparison module 23 compares the number with a preset first number threshold and a preset second number threshold, when the number of the first dust collecting areas is not greater than the first number threshold, it is indicated that the pollution degree of the filter screen is low at this time, the first determining module 24 further determines that the filter screen does not need to be replaced, and maintains the rotation speed of the fan unchanged; when the number of the first dust collecting areas is greater than the first number threshold and smaller than the second number threshold, which indicates that the filter screen is in the pollution degree at the time, the second judging module 25 further judges that the filter screen is about to be replaced, increases the rotation speed of the fan and reduces the pollution degree of the filter screen, so as to perform corresponding judgment processing on second pollutant shielding area data of the filter screen after the rotation speed of the fan is adjusted; when the number of the first dust collecting areas is not less than the second number threshold, it is indicated that the pollution degree of the filter screen is high at this time, the third judging module 26 further judges that the filter screen needs to be replaced immediately, and increases the rotating speed of the fan to reduce the pollution degree of the filter screen, so that the third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted is correspondingly judged and processed.
In this embodiment, the number of the first dust collecting areas is compared with a preset first number threshold and a preset second number threshold, so that the degree of pollution of the filter screen can be judged; whether the filter screen needs to be replaced can be judged according to the pollution degree of the filter screen, and timely replacement and accurate replacement of the filter screen are ensured; the pollution degree of filter screen reaches when being about to need to change or the pollution degree that needs to change immediately, according to the rotational speed of predetermined rotational speed adjustment rule increase fan, can reduce the pollution degree of filter screen improves the availability factor and the life of filter screen.
In a preferred embodiment, the data of the pollutant shielding area of the filter screen is obtained by the following steps:
acquiring pollutant shielding area data of the filter screen through at least one infrared imaging sensor; wherein the contaminant occlusion area data comprises the first contaminant occlusion area data, the second contaminant occlusion area data, and the third contaminant occlusion area data.
Wherein, the infrared imaging sensor is a high-resolution infrared imaging sensor, the resolution of the infrared imaging sensor is not less than 120 x 90, and the imaging coverage area of the infrared imaging sensor is not less than 30% of the area of the filter screen.
In a preferred embodiment, the apparatus further comprises a sensor runtime acquisition module 27, wherein the sensor runtime acquisition module 27 is specifically configured to:
acquiring the running time of the infrared imaging sensor;
comparing the running time with a preset first time threshold;
when the running time is greater than the first time threshold, shutting down the infrared imaging sensor;
maintaining operation of the infrared imaging sensor when the run time is not greater than the first time threshold.
In a preferred embodiment, the apparatus further comprises a sensor shutdown time acquisition module 28, wherein the sensor shutdown time acquisition module 28 is specifically configured to:
obtaining the shutdown time of the infrared imaging sensor;
comparing the shutdown time with a preset fourth time threshold;
when the shutdown time is greater than the fourth time threshold, turning on the infrared imaging sensor;
maintaining the infrared imaging sensor off when the run time is not greater than the fourth time threshold.
In a preferred embodiment, the second determining module 25 is specifically configured to:
when the number of the first dust collecting areas is larger than the first number threshold value and smaller than the second number threshold value, judging that the filter screen is about to be replaced;
increasing the rotation speed of the fan according to r' ═ r + m 1; wherein r' is the rotating speed of the fan after adjustment, r is the rotating speed of the fan before adjustment, m1 is a preset first rotating speed adjustment threshold, and m1 is greater than 0;
after a preset third time threshold value, acquiring second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
acquiring the number of second dust collecting areas from the second pollutant shielding area data;
comparing the number of second dust accumulation areas with the first number threshold and the second number threshold;
when the number of the second dust collecting areas is not larger than the first number threshold value, the filter screen is judged not to need to be replaced, and the current rotating speed of the fan is kept unchanged;
when the number of the second dust collecting areas is larger than the first number threshold and smaller than the second number threshold, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the number of the second dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
In a preferred embodiment, the third determining module 26 is specifically configured to:
when the number of the first dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately;
increasing the rotation speed of the fan according to r' ═ r + m 2; wherein r' is the rotating speed of the fan after adjustment, r is the rotating speed of the fan before adjustment, m2 is a preset second rotating speed adjustment threshold, and m2 is greater than 0;
after a preset fourth time threshold value, acquiring third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
acquiring the number of third dust collecting areas from the third pollutant shielding area data;
comparing the number of the third dust collection area with the first number threshold and the second number threshold;
when the number of the third dust collecting areas is not larger than the first number threshold value, judging that the filter screen does not need to be replaced, and maintaining the current rotating speed of the fan unchanged;
when the number of the third dust collecting areas is larger than the first number threshold and smaller than the second number threshold, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the number of the third dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
In a preferred embodiment, the apparatus further comprises an information sending module 29 configured to:
when the filter screen is judged not to be replaced, sending filter screen replacement-free information to a user terminal, or sending replacement information to the user terminal;
when the filter screen is judged to be required to be replaced, sending filter screen pre-replacement information to the user terminal;
and when the filter screen is judged to need to be replaced immediately, sending filter screen replacement information to the user terminal.
In a preferred embodiment, the apparatus further comprises a display module 210 for:
and displaying the dust collecting area on the user terminal.
According to the filter screen replacement detection device provided by the embodiment of the invention, the data of the pollutant shielding area of the filter screen is obtained through the infrared imaging sensor, and the number of the dust collecting areas is further obtained, so that the pollution degree of the filter screen can be detected in real time when the infrared imaging sensor is started; comparing the number of the dust collecting areas with a preset first number threshold and a preset second number threshold, and judging the pollution degree of the filter screen; whether the filter screen needs to be replaced is judged according to the pollution degree, so that the filter screen is ensured to be replaced timely and accurately; when the filter screen pollution degree does not reach the degree that needs to be changed, the rotational speed of fan is increased according to predetermined rotational speed adjustment rule, can reduce the filter screen pollution degree, improves the availability factor and the life of filter screen.
Fig. 3 is a schematic structural diagram of a preferred embodiment of an electrical apparatus according to the present invention, which is capable of implementing all processes of the filter screen replacement detection method according to any of the above embodiments.
As shown in fig. 3, the electrical equipment includes a memory 31, a processor 32, a fan 33, and a filter 34; wherein, the memory 31 stores therein a computer program configured to be executed by the processor 32, and when being executed by the processor 32, the computer program implements the filter screen replacement detection method according to any of the above embodiments.
It should be understood that the electrical equipment of the present embodiment may be an air purifier, an air conditioner, or other electronic equipment that implements a filtering function through a filter screen.
According to the electrical equipment provided by the embodiment of the invention, the pollutant shielding area of the filter screen is obtained through the infrared imaging sensor, so that the pollutant shielding area of the filter screen can be detected in real time; comparing the pollutant shielding area with a preset first shielding area threshold value and a preset second shielding area threshold value, and judging the pollution degree of the filter screen; whether the filter screen needs to be replaced can be judged according to the pollution degree of the filter screen, and timely replacement and accurate replacement of the filter screen are ensured; when the filter screen pollution degree reaches the pollution degree that will need to be changed or need to be changed immediately, the rotational speed of fan is increased according to predetermined rotational speed adjustment rule, can reduce filter screen pollution degree, improves the availability factor and the life of filter screen.
Illustratively, the computer program may be divided into one or more modules/units, which are stored in the memory 31 and executed by the processor 32 to accomplish the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used for describing the execution process of the computer program in the electrical equipment.
The Processor 32 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 31 may be used for storing the computer programs and/or modules, and the processor 32 implements various functions of the electrical appliance by running or executing the computer programs and/or modules stored in the memory 31 and calling data stored in the memory 31. The memory 31 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
It should be noted that the above-mentioned electrical devices include, but are not limited to, a processor, a memory, a filter, and a fan, and those skilled in the art will understand that the structural diagram of fig. 3 is only an example of the above-mentioned electrical devices, and does not constitute a limitation of the electrical devices, and may include more components than those shown in the drawings, or may combine some components, or may be different components.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be noted that, for those skilled in the art, several equivalent obvious modifications and/or equivalent substitutions can be made without departing from the technical principle of the present invention, and these obvious modifications and/or equivalent substitutions should also be regarded as the scope of the present invention.
Claims (10)
1. The filter screen replacement detection method is applied to electrical equipment comprising a fan and a filter screen, and comprises the following steps:
acquiring first pollutant shielding area data of the filter screen;
acquiring the number of first dust collecting areas from the first pollutant shielding area data; the dust collecting area is an area with a corresponding pollutant shielding area larger than a preset area threshold;
comparing the number of the first dust collecting areas with a preset first number threshold and a preset second number threshold; wherein the first number threshold is less than the second number threshold;
when the number of the first dust collecting areas is not larger than the first number threshold value, the filter screen is judged not to need to be replaced, and the current rotating speed of the fan is kept unchanged;
when the number of the first dust collecting areas is larger than the first number threshold and smaller than the second number threshold, the filter screen is judged to be required to be replaced, and the rotating speed of the fan is increased to perform corresponding judgment processing on second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
and when the number of the first dust collecting areas is not less than the second number threshold value, the filter screen is judged to be required to be replaced immediately, and the rotating speed of the fan is increased so as to perform corresponding judgment processing on the third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted.
2. The method of claim 1, wherein the contaminant blocking area data for the screen is obtained by:
acquiring pollutant shielding area data of the filter screen through at least one infrared imaging sensor; wherein the contaminant occlusion area data comprises the first contaminant occlusion area data, the second contaminant occlusion area data, and the third contaminant occlusion area data.
3. The method of claim 2, further comprising:
acquiring the running time of the infrared imaging sensor;
comparing the running time with a preset first time threshold;
when the running time is greater than the first time threshold, shutting down the infrared imaging sensor;
maintaining operation of the infrared imaging sensor when the run time is not greater than the first time threshold.
4. The method of claim 3, wherein after shutting down the infrared imaging sensor, the method further comprises:
obtaining the shutdown time of the infrared imaging sensor;
comparing the shutdown time with a preset second time threshold;
when the shutdown time is greater than the second time threshold, starting the infrared imaging sensor;
maintaining the infrared imaging sensor off when the run time is not greater than the second time threshold.
5. The method according to claim 1, wherein the increasing of the rotation speed of the fan is performed to perform corresponding judgment processing on data of a second pollutant shielding area of the filter screen after the adjustment of the rotation speed of the fan, and specifically comprises:
increasing the rotation speed of the fan according to r' ═ r + m 1; wherein r' is the rotating speed of the fan after adjustment, r is the rotating speed of the fan before adjustment, m1 is a preset first rotating speed adjustment threshold, and m1 is greater than 0;
after a preset third time threshold value, acquiring second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
acquiring the number of second dust collecting areas from the second pollutant shielding area data;
comparing the number of second dust accumulation areas with the first number threshold and the second number threshold;
when the number of the second dust collecting areas is not larger than the first number threshold value, the filter screen is judged not to need to be replaced, and the current rotating speed of the fan is kept unchanged;
when the number of the second dust collecting areas is larger than the first number threshold and smaller than the second number threshold, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the number of the second dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
6. The method according to claim 1, wherein the increasing of the rotation speed of the fan is performed to perform corresponding judgment processing on data of a third pollutant shielding area of the filter screen after the adjustment of the rotation speed of the fan, and specifically includes:
increasing the rotation speed of the fan according to r' ═ r + m 2; wherein r' is the rotating speed of the fan after adjustment, r is the rotating speed of the fan before adjustment, m2 is a preset second rotating speed adjustment threshold, and m2 is greater than 0;
after a preset fourth time threshold value, acquiring third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
acquiring the number of third dust collecting areas from the third pollutant shielding area data;
comparing the number of the third dust collection area with the first number threshold and the second number threshold;
when the number of the third dust collecting areas is not larger than the first number threshold value, judging that the filter screen does not need to be replaced, and maintaining the current rotating speed of the fan unchanged;
when the number of the third dust collecting areas is larger than the first number threshold and smaller than the second number threshold, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the number of the third dust collecting areas is not less than the second number threshold value, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
7. The method according to any one of claims 1 to 6, further comprising:
when the filter screen is judged not to be replaced, sending filter screen replacement-free information to a user terminal, or sending replacement information to the user terminal;
when the filter screen is judged to be required to be replaced, sending filter screen pre-replacement information to the user terminal;
and when the filter screen is judged to need to be replaced immediately, sending filter screen replacement information to the user terminal.
8. The utility model provides a detection device is changed to filter screen which characterized in that is applied to in the electrical equipment including fan, filter screen, the device includes:
the first acquisition module is used for acquiring first pollutant shielding area data of the filter screen;
the second acquisition module is used for acquiring the number of the first dust collecting areas from the first pollutant shielding area data; the dust collecting area is an area with a corresponding pollutant shielding area larger than a preset area threshold;
the comparison module is used for comparing the number of the first dust collecting areas with a preset first number threshold and a preset second number threshold; wherein the first number threshold is less than the second number threshold;
the first judging module is used for judging that the filter screen does not need to be replaced when the number of the first dust collecting areas is not larger than the first number threshold value, and keeping the current rotating speed of the fan unchanged;
the second judging module is used for judging that the filter screen is about to be replaced when the number of the first dust collecting areas is larger than the first number threshold and smaller than the second number threshold, and increasing the rotating speed of the fan so as to correspondingly judge and process second pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted;
and the third judging module is used for judging that the filter screen needs to be replaced immediately when the number of the first dust collecting areas is not less than the second number threshold value, and increasing the rotating speed of the fan so as to perform corresponding judgment processing on the third pollutant shielding area data of the filter screen after the rotating speed of the fan is adjusted.
9. An electrical apparatus, characterized in that the electrical apparatus comprises a fan, a filter screen, a memory, a processor, and a computer program stored in the memory and configured to be executed by the processor, the computer program when executed implementing the filter screen replacement detection method according to any one of claims 1 to 7.
10. A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when executed, the computer program implements the filter screen replacement detection method according to any one of claims 1 to 7.
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| CN202010892249.3A CN112051305A (en) | 2020-08-28 | 2020-08-28 | Filter screen replacement detection method and device, electrical equipment and storage medium |
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| CN202010892249.3A CN112051305A (en) | 2020-08-28 | 2020-08-28 | Filter screen replacement detection method and device, electrical equipment and storage medium |
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Address after: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant after: Hisense Air Conditioning Co.,Ltd. Address before: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. |
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