CN112033875A - 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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- CN112033875A CN112033875A CN202010892250.6A CN202010892250A CN112033875A CN 112033875 A CN112033875 A CN 112033875A CN 202010892250 A CN202010892250 A CN 202010892250A CN 112033875 A CN112033875 A CN 112033875A
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 135
- 231100000719 pollutant Toxicity 0.000 claims abstract description 135
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000003331 infrared imaging Methods 0.000 claims description 57
- 239000000356 contaminant Substances 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 20
- 238000004590 computer program Methods 0.000 claims description 19
- 230000007717 exclusion Effects 0.000 claims 1
- 230000006870 function Effects 0.000 description 6
- 238000003384 imaging method Methods 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
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000001914 filtration 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
- 238000009825 accumulation Methods 0.000 description 1
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/28—Measuring arrangements characterised by the use of optical techniques for measuring areas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
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 a pollutant shielding area of a filter screen; comparing the pollutant shielding area with a preset first shielding area threshold value and a preset second shielding area threshold value; wherein the first occlusion area threshold is less than the second occlusion area threshold; when the pollutant shielding area is not larger than the first shielding area threshold value, the filter screen is judged not to need to be replaced; when the pollutant shielding area is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced; when the pollutant shielding area is not smaller than the second shielding area threshold value, the filter screen is judged to need 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 pollutant shielding area of the filter screen and accurately judge whether the filter screen needs to be replaced according to the pollutant shielding 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 filter screen pollutant shielding area can be detected, and whether the filter screen needs to be replaced or not can be accurately judged according to the pollutant shielding area.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a method for detecting replacement of a filter screen, which is applied to an electrical device including a fan and a filter screen, and the method includes:
acquiring a first pollutant shielding area of the filter screen;
comparing the first pollutant shielding area with a preset first shielding area threshold value and a preset second shielding area threshold value; wherein the first occlusion area threshold is less than the second occlusion area threshold;
when the first pollutant shielding area is not larger than the first shielding area 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 first pollutant shielding area is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, 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 the second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
when the first pollutant shielding area is not smaller than the second shielding area 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 of the filter screen after the rotating speed of the fan is adjusted.
As a preferred scheme, the pollutant shielding area of the filter screen is obtained by the following steps:
acquiring a pollutant shielding area of the filter screen through at least one infrared imaging sensor; wherein the contaminant blocking area includes the first contaminant blocking area, the second contaminant blocking area, and the third contaminant blocking area.
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 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 a second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
comparing the second contaminant occlusion area to the first occlusion area threshold and the second occlusion area threshold;
when the shielding area of the second pollutant is not larger than the threshold value of the first shielding area, judging that the filter screen does not need to be replaced, and maintaining the current rotating speed of the fan unchanged;
when the shielding area of the second pollutant is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the shielding area of the second pollutant is not smaller than the threshold value of the shielding area of the second pollutant, 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 of the filter screen after the rotation speed of the fan is adjusted, and the method 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 a third pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
comparing the third contaminant occlusion area to the first occlusion area threshold and the second occlusion area threshold;
when the shielding area of the third pollutant is not larger than the first shielding area 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 shielding area of the third pollutant is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the shielding area of the third pollutant is not smaller than the threshold value of the second shielding area, 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 acquisition module is used for acquiring a first pollutant shielding area of the filter screen;
the comparison module is used for comparing the first pollutant shielding area with a preset first shielding area threshold value and a preset second shielding area threshold value; wherein the first occlusion area threshold is less than the second occlusion area threshold;
the first judging module is used for judging that the filter screen does not need to be replaced and maintaining the rotating speed of the fan unchanged when the first pollutant shielding area is not larger than the first shielding area threshold value;
the second judging module is used for judging that the filter screen is about to be replaced when the first pollutant shielding area is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, and increasing the rotating speed of the fan so as to correspondingly judge the second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
and the third judgment module is used for judging that the filter screen needs to be replaced immediately when the first pollutant shielding area is not smaller than the second shielding area threshold value, and the rotating speed of the fan is increased so as to perform corresponding judgment processing on the shielding area of the third pollutant 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 pollutant shielding area of the filter screen is obtained through the infrared imaging sensor, and the pollutant shielding area of the filter screen can be detected in real time when the infrared imaging sensor is started; 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.
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, do not have technical meanings, and cannot be understood as defining or implying the importance of the described objects.
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 a first pollutant shielding area of the filter screen;
s12: comparing the first pollutant shielding area with a preset first shielding area threshold value and a preset second shielding area threshold value; wherein the first occlusion area threshold is less than the second occlusion area threshold;
s13: when the first pollutant shielding area is not larger than the first shielding area threshold value, judging that the filter screen does not need to be replaced, and maintaining the rotating speed of the fan unchanged;
s14: when the first pollutant shielding area is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, 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 the second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
s15: when the first pollutant shielding area is not smaller than the second shielding area 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 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.
Those skilled in the art can understand that the first shielding area threshold and the second shielding area threshold can be set according to the use requirement of the filter screen or according to the requirement of a user when a product leaves a factory, and only the first shielding area threshold needs to be smaller than the second shielding area threshold within a reasonable range.
Specifically, the first pollutant shielding area in this embodiment is in a sheet shape (communicated shape), and the area may be calculated by using a related algorithm in the prior art, after an area value is obtained through calculation, the area value is compared with a preset first shielding area threshold and a preset second shielding area threshold, when the first pollutant shielding area is not greater than the first shielding area threshold, it indicates that the pollution degree of the filter screen is low, and further determines that the filter screen does not need to be replaced, and maintains the rotation speed of the fan unchanged; when the first pollutant shielding area is larger than the first shielding area threshold and smaller than the second shielding area threshold, indicating the pollution degree of the filter screen 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 the second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted; when the first pollutant shelters from the area and is not less than when the second sheltered from the area threshold value, explain this moment the pollution degree of filter screen is high to further judge the filter screen needs to be changed immediately, and increase the rotational speed of fan reduces the pollution degree of filter screen, in order to carry out corresponding judgement processing to the third pollutant of filter screen after fan rotational speed adjustment shelters from the area.
In this embodiment, the first pollutant shielding area is compared with a preset first shielding area threshold and a preset second shielding area threshold, and the pollution degree of the filter screen can be obtained through judgment; 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 contaminant blocking area of the screen is obtained by:
acquiring a pollutant shielding area of the filter screen through at least one infrared imaging sensor; wherein the contaminant blocking area includes the first contaminant blocking area, the second contaminant blocking area, and the third contaminant blocking area.
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 the area 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.
Preferably, the first occlusion area threshold is 60% of the imaging coverage area of the single infrared imaging sensor; the second shielding area threshold value is 90% of the imaging coverage area of the single infrared imaging sensor.
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 second pollutant blocking 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 a second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
comparing the second contaminant occlusion area to the first occlusion area threshold and the second occlusion area threshold;
when the shielding area of the second pollutant is not larger than the threshold value of the first shielding area, judging that the filter screen does not need to be replaced, and maintaining the current rotating speed of the fan unchanged;
when the shielding area of the second pollutant is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the shielding area of the second pollutant is not smaller than the threshold value of the shielding area of the second pollutant, 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 the pollutant sheltering from the area 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 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 a third pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
comparing the third contaminant occlusion area to the first occlusion area threshold and the second occlusion area threshold;
when the shielding area of the third pollutant is not larger than the first shielding area 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 shielding area of the third pollutant is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the shielding area of the third pollutant is not smaller than the threshold value of the second shielding area, 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 pollutant shielding area is further judged and processed 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 pollutant shielding area on the user terminal.
The embodiment can display the pollutant shielding area in a numerical value form, an image form or a combination form at the user terminal, 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 pollutant shielding area of the filter screen is obtained through the infrared imaging sensor, and the pollutant shielding area of the filter screen can be detected in real time when the infrared imaging sensor is started; 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.
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 acquisition module 21 is configured to acquire a first pollutant blocking area of the filter screen;
a comparison module 22, configured to compare the first pollutant occlusion area with a preset first occlusion area threshold and a preset second occlusion area threshold; wherein the first occlusion area threshold is less than the second occlusion area threshold;
the first judging module 23 is configured to judge that the filter screen does not need to be replaced when the first pollutant shielding area is not greater than the first shielding area threshold, and maintain the rotation speed of the fan unchanged;
the second judging module 24 is configured to judge that the filter screen is about to be replaced when the first pollutant shielding area is larger than the first shielding area threshold and smaller than the second shielding area threshold, and increase the rotation speed of the fan to perform corresponding judgment processing on the second pollutant shielding area of the filter screen after the rotation speed of the fan is adjusted;
and the third judging module 25 is used for judging that the filter screen needs to be replaced immediately when the first pollutant shielding area is not smaller than the second shielding area threshold value, and increasing the rotating speed of the fan so as to perform corresponding judgment processing on the third pollutant shielding area of the filter screen after the rotating 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 shielding area obtained by the obtaining module 21 is sheet-shaped (connected), the area can be calculated by using a related algorithm in the prior art, after an area value is obtained by calculation, the comparing module 22 compares the area value with a preset first shielding area threshold value and a preset second shielding area, when the first pollutant shielding area is not greater than the first shielding area threshold value, it indicates that the pollution degree of the filter screen is low at this time, and the first determining module 23 determines that the filter screen does not need to be replaced, and maintains the rotation speed of the fan unchanged; when the first pollutant shielding area is larger than the first shielding area threshold and smaller than the second shielding area threshold, which indicates that the filter screen is about to be replaced at the moment, the second judging module 24 judges that the filter screen is about to be replaced, increases the rotating speed of the fan and reduces the pollution degree of the filter screen, so as to perform corresponding judgment processing on the second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted; when first pollutant shelters from the area and is not less than when the second sheltered from the area threshold value, explain this moment the pollution degree of filter screen is high, third judgement module 25 judges the filter screen needs to be changed immediately to increase the rotational speed of fan reduces the pollution degree of filter screen, in order to carry out corresponding judgement processing to the third pollutant of filter screen after the adjustment of fan rotational speed.
In this embodiment, the first pollutant shielding area is compared with a preset first shielding area threshold and a preset second shielding area threshold, and the pollution degree of the filter screen can be obtained through judgment; 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 obtaining module 21 is specifically configured to:
acquiring a pollutant shielding area of the filter screen through at least one infrared imaging sensor; wherein the contaminant blocking area includes the first contaminant blocking area, the second contaminant blocking area, and the third contaminant blocking area.
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.
Preferably, the first occlusion area threshold is 60% of the imaging coverage area of the single infrared imaging sensor; the second shielding area threshold value is 90% of the imaging coverage area of the single infrared imaging sensor.
In a preferred embodiment, the apparatus further comprises a sensor runtime acquisition module 26, wherein the sensor runtime acquisition module 26 is specifically configured to:
acquiring the running time of the infrared imaging sensor;
comparing the running time with a preset third time threshold;
when the running time is greater than the third time threshold, shutting down the infrared imaging sensor;
maintaining operation of the infrared imaging sensor when the run time is not greater than the third time threshold.
In a preferred embodiment, the apparatus further comprises a sensor shutdown time acquisition module 27, where the sensor shutdown time acquisition module 27 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 24 is specifically configured to:
when the first pollutant shielding area is larger than the first shielding area threshold value and smaller than the second shielding area 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 a second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
comparing the second contaminant occlusion area to the first occlusion area threshold and the second occlusion area threshold;
when the shielding area of the second pollutant is not larger than the threshold value of the first shielding area, judging that the filter screen does not need to be replaced, and maintaining the current rotating speed of the fan unchanged;
when the shielding area of the second pollutant is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the shielding area of the second pollutant is not smaller than the threshold value of the shielding area of the second pollutant, judging that the filter screen needs to be replaced immediately, and shutting down the fan.
In a preferred embodiment, the third determining module 25 is specifically configured to:
when the first pollutant shielding area is not smaller than the second shielding area 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 a third pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
comparing the third contaminant occlusion area to the first occlusion area threshold and the second occlusion area threshold;
when the shielding area of the third pollutant is not larger than the first shielding area 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 shielding area of the third pollutant is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the shielding area of the third pollutant is not smaller than the threshold value of the second shielding area, 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 28 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 29 for:
and displaying the pollutant shielding area on the user terminal.
According to the filter screen replacement detection device provided by the embodiment of the invention, the pollutant shielding area of the filter screen is obtained through the infrared imaging sensor, and the pollutant shielding area of the filter screen can be detected in real time when the infrared imaging sensor is started; 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.
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, and the pollutant shielding area of the filter screen can be detected in real time when the infrared imaging sensor is started; 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 wind 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 a first pollutant shielding area of the filter screen;
comparing the first pollutant shielding area with a preset first shielding area threshold value and a preset second shielding area threshold value; wherein the first occlusion area threshold is less than the second occlusion area threshold;
when the first pollutant shielding area is not larger than the first shielding area 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 first pollutant shielding area is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, 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 the second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
when the first pollutant shielding area is not smaller than the second shielding area 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 of the filter screen after the rotating speed of the fan is adjusted.
2. The method of claim 1, wherein the contaminant exclusion area of the screen is obtained by:
acquiring a pollutant shielding area of the filter screen through at least one infrared imaging sensor; wherein the contaminant blocking area includes the first contaminant blocking area, the second contaminant blocking area, and the third contaminant blocking area.
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 to perform corresponding judgment processing on the second pollutant blocking area of the filter screen after the adjustment of the rotation speed of the fan 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 a second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
comparing the second contaminant occlusion area to the first occlusion area threshold and the second occlusion area threshold;
when the shielding area of the second pollutant is not larger than the threshold value of the first shielding area, judging that the filter screen does not need to be replaced, and maintaining the current rotating speed of the fan unchanged;
when the shielding area of the second pollutant is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the shielding area of the second pollutant is not smaller than the threshold value of the shielding area of the second pollutant, 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 to perform corresponding judgment processing on a third pollutant shielding area of the filter screen after the adjustment of the rotation speed of the fan specifically comprises:
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 a third pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
comparing the third contaminant occlusion area to the first occlusion area threshold and the second occlusion area threshold;
when the shielding area of the third pollutant is not larger than the first shielding area 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 shielding area of the third pollutant is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, judging that the filter screen is about to be replaced, and maintaining the current rotating speed of the fan unchanged;
and when the shielding area of the third pollutant is not smaller than the threshold value of the second shielding area, 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 acquisition module is used for acquiring a first pollutant shielding area of the filter screen;
the comparison module is used for comparing the first pollutant shielding area with a preset first shielding area threshold value and a preset second shielding area threshold value; wherein the first occlusion area threshold is less than the second occlusion area threshold;
the first judging module is used for judging that the filter screen does not need to be replaced and maintaining the rotating speed of the fan unchanged when the first pollutant shielding area is not larger than the first shielding area threshold value;
the second judging module is used for judging that the filter screen is about to be replaced when the first pollutant shielding area is larger than the first shielding area threshold value and smaller than the second shielding area threshold value, and increasing the rotating speed of the fan so as to correspondingly judge the second pollutant shielding area of the filter screen after the rotating speed of the fan is adjusted;
and the third judgment module is used for judging that the filter screen needs to be replaced immediately when the first pollutant shielding area is not smaller than the second shielding area threshold value, and the rotating speed of the fan is increased so as to perform corresponding judgment processing on the shielding area of the third pollutant 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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| CN202010892250.6A CN112033875A (en) | 2020-08-28 | 2020-08-28 | Filter screen replacement detection method and device, electrical equipment and storage medium |
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| CN202010892250.6A CN112033875A (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. |