CN106422594A - Method and system for detecting neglected loading of dust filtration mesh and household appliances - Google Patents
Method and system for detecting neglected loading of dust filtration mesh and household appliances Download PDFInfo
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- CN106422594A CN106422594A CN201610789187.7A CN201610789187A CN106422594A CN 106422594 A CN106422594 A CN 106422594A CN 201610789187 A CN201610789187 A CN 201610789187A CN 106422594 A CN106422594 A CN 106422594A
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- Prior art keywords
- filtrating screen
- dirt filtrating
- dirty stifled
- value
- household electrical
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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
-
- 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
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention particularly relates to a method and system for detecting neglected loading of a dust filtration mesh and household appliances. The method comprises the steps of detecting a filth blockage value T in a preset installation site of the dust filtration mesh every time household appliances are started; judging whether the dust filtration mesh has been installed according to a comparative result between the filth blockage value T and a preset filth blockage value T1, and generating a judging result; adopting a corresponding control method on the household appliance according to the judging result. According to the method and the system, whether the dust filtration mesh has been installed can be detected when the household appliances such as an air-conditioner and an air filter are started, control over the household appliances can be conducted according to a detection result, thus the problems that using experience of a user is reduced, household appliances are damaged, the service lives of the household appliances are shortened and the like caused by starting the household appliances without installing the dust filtration mesh are avoided, functions of the household appliances are enriched, and use satisfaction degree of the user is improved.
Description
Technical field
The present invention relates to field of photodetection, particularly to a kind of dirt filtrating screen neglected loading detection method, system and household electrical appliance.
Background technology
Dirt filtrating screen is usually used in needing in the household electrical appliance that the dust of in the air is filtered, such as air-conditioning, air filtration
Device etc..When dirt filtrating screen is arranged in air-conditioning, because it plays the floating particle thing filtering in the air, make the heat exchanger of indoor set
The effect avoiding debris attachment is not although have important function to the operation function of air-conditioning, but can have a strong impact on making of air-conditioning
Use performance.The structure of heat exchanger is that the intensive string of fin is slotting to be arranged on pipeline, and the gap between it is minimum, and for heat exchange
Fully, fin area is also relatively large.Thus, in operation of air conditioner, air-flow passes through heat exchanger, the dust of in the air and floccule
It is easy to be attached on fin and cause dirty blocking up.Heat exchanger dirty stifled after impact to compare dirt filtrating screen dirty stifled seriously a lot, not only can
Reduce air-conditioning air output thus affecting the performance of air-conditioning, and due to indoor and outdoor heat exchange rely on fin carry out, attached thereon
After dust, heat exchange efficiency can be greatly reduced.Heat exchanger may make air conditioner refrigerating heating effect decline, when serious when dirty stifled slight
May because in heat exchanger heat do not distribute not go out and damage some devices of air-conditioning and cause air-conditioning cannot use.If air-conditioning neglected loading is filtered
Dirt net, indoor set heat exchanger will be exposed to unprotected in the state of it is easy to cause dirty stifled, and the cleaning of heat exchanger more than
Dirt filtrating screen clean complex is much, also much more difficult, once even if dirty stifled cleaning is also likely to produce expendable consequence.Thus filter
The protective effect of dirt net heat exchanger also just highlights more important.
A lot of air-conditionings all carry the dirty stifled prompt facility of dirt filtrating screen now, dirt filtrating screen dirty stifled after remind user to clean, but due to
The not careful or other reasonses of user, may forget after pulling down dirt filtrating screen dirt filtrating screen is again loaded in air-conditioning.On this will occur
Dangerous situation described in face, thus it is necessary in the case of air-conditioning neglected loading dirt filtrating screen air-conditioning is taken certain safeguard measure.
Equally in other household electrical appliance, such as air cleaner, there is also due to the not careful of user or other reasonses, pull down filter dirt
The situation that dirt filtrating screen is again loaded into is forgotten, thus affecting airfiltering effect after net.
Content of the invention
The invention provides a kind of dirt filtrating screen neglected loading detection method, system and household electrical appliance, solve above-described skill
Art problem.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
According to one aspect of the present invention, there is provided a kind of dirt filtrating screen neglected loading detection method, comprise the following steps：
Step 1, when each family electrically activates, detection dirt filtrating screen presets dirty stifled value T of installed position；
Step 2, according to dirty stifled value T and default dirty stifled threshold value T1Comparative result judge whether dirt filtrating screen has been installed, and
Generate judged result；
Household electrical appliances, according to judged result, are taken corresponding control mode by step 3.
According to another aspect of the present invention, there is provided a kind of dirt filtrating screen neglected loading detecting system, including dirty stifled detection module,
Judge module and control module,
Described dirty stifled detection module is used for detecting dirty stifled value T that dirt filtrating screen presets installed position；
Described judge module is used for according to dirty stifled value T and presets dirty stifled threshold value T1Comparative result judge whether to have installed
Dirt filtrating screen, and generate judged result；
Described control module is used for according to judged result, and household electrical appliances are taken with corresponding control mode.
In order to solve the technical problem of the present invention, present invention also offers a kind of household electrical appliance, including above-described filter
Dirt net neglected loading detecting system.
The invention has the beneficial effects as follows：The present invention can detect whether when the families such as air-conditioning, air cleaner electrically activate
Dirt filtrating screen is installed, and according to testing result, household electrical appliances is controlled, it is to avoid dirt filtrating screen is not installed just starts household electrical appliances and cause user
Use feeling declines, and household electrical appliances is caused with the problems such as damage, reduction household electrical appliances service life simultaneously, enriches the function of electrical equipment, improve
Users' satisfaction degree.
Brief description
Fig. 1 is a kind of schematic flow sheet of dirt filtrating screen neglected loading detection method of embodiment 1；
Fig. 2 is a kind of structural representation of dirt filtrating screen neglected loading detecting system of embodiment 2；
Fig. 3 is the structural representation that embodiment 2 apoplexy involving the solid organs blocks up detection module；
Fig. 4 is the structural representation that embodiment 3 apoplexy involving the solid organs blocks up detection module；
Fig. 5 is a kind of structural representation of air-conditioning of embodiment 4；
In above-mentioned accompanying drawing, each label is specially：
1st, single-chip microcomputer, 2, first switch control circuit, 3, infrarede emitting diode, 4, photodiode, 5, supply module,
6th, connector, 7, dirt filtrating screen, 8, detector unit, 9, transmitting receiving unit, 10, second switch control circuit.
Specific embodiment
Below in conjunction with accompanying drawing, the principle of the present invention and feature are described, example is served only for explaining the present invention, and
Non- for limiting the scope of the present invention.
As shown in figure 1, being a kind of schematic flow sheet of dirt filtrating screen neglected loading detection method, comprise the following steps：
Step 1, when each family electrically activates, detection dirt filtrating screen presets dirty stifled value T of installed position；
Step 2, according to dirty stifled value T and default dirty stifled threshold value T1Comparative result judge whether dirt filtrating screen has been installed, and
Generate judged result；
Household electrical appliances, according to judged result, are taken corresponding control mode by step 3.
1 pair of said process is described in detail by the following examples.
In the step 1 of the present embodiment 1, detect that dirt filtrating screen presets dirty stifled value T of installed position using photoelectric detecting method,
It is specially：
Optical Transmit Unit is controlled to irradiate the default installation site of dirt filtrating screen；
Light-sensitive element is controlled to receive the transmitted light through described default installation site；
The transmitted light that described light-sensitive element is received is converted into for representing that dirt filtrating screen presets the dirty stifled degree of installed position
Dirty stifled value, described dirty stifled value is the magnitude of voltage of the resistance connected with described light-sensitive element.In the present embodiment, resistance both end voltage
Bigger, illustrate that appeared intensity of illumination is bigger, the dirty stifled situation that dirt filtrating screen presets installed position is slighter, i.e. detection obtains
Dirty stifled value bigger, dirt filtrating screen preset installed position dirty stifled situation slighter.In other embodiments it is also possible to control light
Quick element receives the reflected light through default installed position dust reflection, and the intensity of illumination of reflected light is converted into for table
Show that dirt filtrating screen presets the dirty stifled value of the dirty stifled degree of installed position, described dirty stifled value is the resistance connected with described light-sensitive element
Magnitude of voltage, in this embodiment, resistance both end voltage is less, illustrates that reflected intensity of illumination is less, and dirt filtrating screen is preset and installed
At position, dust is fewer, and dirty stifled situation is slighter, that is, detect that the dirty stifled value obtaining is less, and dirt filtrating screen presets the dirty of installed position
Stifled situation is slighter.
In order to improve the accuracy of the dirty stifled value being gathered, in the present embodiment, continuous 7 detection dirt filtrating screens preset installation position
Put the dirty stifled value at place, and generation dirt filtrating screen that dirty stifled value is averaged presets dirty stifled value T of installed position.In other embodiment
In, can also to continuous acquisition to dirty stifled value remove and average after maximum and minimum of a value, generate dirt filtrating screen and preset and install
Dirty stifled value T at position, this method can filter out value that may be substantially bigger than normal or less than normal in the numerical value of collection, further
Improve the accuracy of the dirty stifled value being gathered.
In the step 2 of the present embodiment, according to dirty stifled value T and default dirty stifled threshold value T1Comparative result judge whether to have pacified
Dress dirt filtrating screen.Described default dirty stifled threshold value T1For brand-new dirt filtrating screen corresponding dirty stifled value or for brand-new dirt filtrating screen corresponding multiple
The average of dirty stifled value.Described default dirty stifled threshold value T1Obtain after tested in detection process before household electrical appliance dispatch from the factory, and solid
Change in program, facilitate the present invention to call in detection process.
In various embodiments exist two kinds of situations, a kind of be dirt filtrating screen preset installed position dirty stifled value T be less than
Preset dirty stifled threshold value T equal to described1When, judge dirt filtrating screen has been installed, preset dirty stifled threshold value T more than described1When, it is fitted without filtering
Dirt net.Another kind of situation is that dirty stifled value T that dirt filtrating screen presets installed position is less than described default dirty stifled threshold value T1When, judge
It is fitted without dirt filtrating screen, preset dirty stifled threshold value T more than or equal to described1When, judge dirt filtrating screen has been installed.In such as the present embodiment,
Dirty stifled value T is the corresponding dirty stifled value of transmitted light intensity of illumination, now, when dirty stifled value T that dirt filtrating screen presets installed position is more than
Preset dirty stifled threshold value T1When, illustrate that dirt filtrating screen is fitted without, when dirty stifled value T is less than or equal to described default dirty stifled threshold value T1When, explanation
Dirt filtrating screen has been installed, because the light through dirt filtrating screen transmission is at most when dirt filtrating screen is brand-new, corresponding default dirty stifled threshold value should be
Greatly, if so dirty stifled value when dirty stifled value T that detects is brand-new than dirt filtrating screen is also big, illustrating to be fitted without dirt filtrating screen.?
Another employing reflected light intensity of illumination represents in the embodiment of dirty stifled value, when dirty stifled value T of the default installed position of dirt filtrating screen is little
In default dirty stifled threshold value T1When, illustrate that dirt filtrating screen is fitted without, when dirty stifled value T is more than or equal to described default dirty stifled threshold value T1When, say
Bright dirt filtrating screen has been installed, because the light through dirt filtrating screen reflection is minimum when dirt filtrating screen is brand-new, corresponding default dirty stifled threshold value should
Minimum, if so dirty stifled value when dirty stifled value T that detects is brand-new than dirt filtrating screen is also little, illustrate to be fitted without dirt filtrating screen.
In other embodiments, described default dirty stifled threshold value T1=k*Tn, TnFor the corresponding dirty stifled value of brand-new dirt filtrating screen, it is
The effect of number k is that the span of k is 0.85-1 in order to prevent erroneous judgement from reserving certain surplus, preferably 0.9.
In the step 3 of the present embodiment, when judging to install dirt filtrating screen, household electrical appliances are controlled normally to run；When judgement is not installed
During dirt filtrating screen, control household electrical appliances to be in holding state, do not start other any loads and record detection number of times simultaneously, then according to default
Time interval t duplicate detection dirt filtrating screen presets dirty stifled value T of installed position, and judges whether to have installed dirt filtrating screen, if sentencing
Break and install, control household electrical appliances normally to run；If judging to be fitted without, continue standby, and accumulative detection number of times, until detection time
When number has reached default detection frequency threshold value, close household electrical appliances.T span is 4-15min, preferably 6min.N value model
Enclose for 4-8, its value is selected to be coordinated with t and chooses, make an electric-opening get home electricity run or family's electric-opening get home be electrically turn off total
Time is advisable in 25～50min, in the present embodiment, when t takes 6min, n value preferably 5.Simultaneously in the present embodiment, work as judged result
During for not installing dirt filtrating screen and/or close household electrical appliances, send alarm signal, such as pass through display display alarm signal, and adopt
Remind user installation dirt filtrating screen with buzzer or speech method.
Certainly in other embodiments, can also detect that dirt filtrating screen presets the dirty of installed position using other modes
Stifled value, such as power of fan method or both sides pressure differential method etc., its principle be the same in the present embodiment, here is not carried out in detail
Describe in detail bright.
As shown in Fig. 2 being a kind of structural representation of dirt filtrating screen neglected loading detecting system of embodiment 2, including dirty stifled detection mould
Block, judge module and control module,
Described dirty stifled detection module is used for detecting dirty stifled value T that dirt filtrating screen presets installed position；
Described judge module is used for according to dirty stifled value T and presets dirty stifled threshold value T1Comparative result judge whether to have installed
Dirt filtrating screen, and generate judged result；
Described control module is used for according to judged result, and household electrical appliances are taken with corresponding control mode.
In the present embodiment, described dirty stifled detection module is used for the dirty stifled value that continuous detection dirt filtrating screen presets installed position,
Dirty stifled value is averaged or removes and average after maximum and minimum of a value, generate dirt filtrating screen and preset the dirty of installed position
Stifled value T.
Described control module is used for, when judging to install dirt filtrating screen, controlling household electrical appliances normally to run；When filter is not installed in judgement
During dirt net, household electrical appliances are controlled to be in holding state and record detection number of times, then according to prefixed time interval t duplicate detection dirt filtrating screen
Dirty stifled value T of default installed position, and judge whether dirt filtrating screen has been installed, if judge dirt filtrating screen to be installed, control house
Electricity is normal to be run, if judged result does not always install dirt filtrating screen, keeps the holding state of household electrical appliances detection number of times to be entered simultaneously
Row is cumulative, when detecting that number of times has reached default detection frequency threshold value, closes household electrical appliances.
The present embodiment also includes alarm module, described alarm module be used for when judged result be do not install dirt filtrating screen and/or
When closing household electrical appliances, send alarm signal.
As shown in figure 3, block up the structural representation of detection module for the present embodiment apoplexy involving the solid organs, described dirty stifled detection module includes leading to
Cross transmitting receiving unit 9 and the detector unit 8 of connector 6 connection, and the power supply unit 5 connecting with described detector unit 8；Institute
State detector unit 8 to include the Optical Transmit Unit for launching light to the default installation site of dirt filtrating screen and pass through institute for reception
State the light-sensitive element of the transmitted light of default installation site, in the present embodiment, described Optical Transmit Unit is infrarede emitting diode 3,
Light-sensitive element is photodiode 4.In the present embodiment, described transmitting receiving unit 9 includes single-chip microcomputer 1, first switch controls electricity
Road 2 and the change-over circuit for the photoelectric current of photodiode 4 is converted to voltage, the first I/O port of described single-chip microcomputer 1 is even
Connect first switch control circuit 2, first switch control circuit 2 connects described infrarede emitting diode 3 by connector 6, described
Change-over circuit connects the simulation input port of single-chip microcomputer 1.In other embodiments, this reality can also be substituted using phototriode
Apply the photodiode in example, be likewise supplied with extraordinary Detection results.In the present embodiment, described change-over circuit include with described
The resistance R4 of light-sensitive element series connection, the simulation that resistance R4 is simultaneously connected with described single-chip microcomputer 1 with the end of connecting of described light-sensitive element is defeated
Inbound port, the resistance R4 other end is grounded.
In the present embodiment, the base stage of the triode Q1 in described first switch control circuit is connected to single-chip microcomputer through resistance R1
The first I/O port, colelctor electrode is connected to described Optical Transmit Unit through resistance R3, transmitting collection ground connection.The base stage of described triode Q1
It is grounded after also series connection pull down resistor R2.The present embodiment adopts transistor switching circuit, opens when needing detection luminous, is being not required to
Close when detecting, not only control circuit is simple, and can at utmost saving energy consumption.Meanwhile, in the present embodiment, triode
Colelctor electrode be connected to infrarede emitting diode LED through resistance R3, described resistance R3 be LED current limiting safeguard resistor, Ke Yibao
Suitable electric current is flow through, the effect improving the present embodiment protects infrarede emitting diode not because electric current is excessive simultaneously in card LED
Damage.
First I/O port output low and high level signal of the present embodiment single-chip microcomputer 1, controls three poles by low and high level signal
Pipe Q1 conducting turns off thus being energized to infrarede emitting diode LED, the default installation position of the infrared light dirt filtrating screen that LED sends
Put, when the default installation site of dirt filtrating screen installs dirt filtrating screen, the dust that a portion light is adhered to due to dirt filtrating screen is to light
Reflection, scattering, the effect such as absorption and cannot pass through dirt filtrating screen so that the light minimizing passing through, and adhesive dust is more, thoroughly
The light crossed is fewer.Photodiode 4 is light-sensitive element, and the light being irradiated to thereon is more, bigger by its photoelectric current, by its with
Resistance R4 connects, and photoelectric current can be converted into voltage using Ohm's law u=ir, by gathering resistance R4 both end voltage, and
It is transferred to single-chip microcomputer, then utilize the built-in analog-digital converter of single-chip microcomputer 1, you can analog voltage signal is converted into digital information
Value, and the dirty stifled degree of dirt filtrating screen is represented with this value；When the default installation site of dirt filtrating screen is fitted without dirt filtrating screen, this value table
Show that dirt filtrating screen presets the dirty stifled degree of installation site.In the present embodiment, resistance R4 both end voltage is bigger, and single-chip microcomputer is converted into numeral
The value of information is bigger, illustrates that appeared intensity of illumination is bigger, and it is slighter that dirt filtrating screen presets the dirty stifled situation of installed position.This reality
The dirty stifled detection module structure applying example is simple, with low cost and result accurately, can need to pacify in air-conditioning, air cleaner etc.
It is mounted directly use in the household electrical appliance of dress dirt filtrating screen, have wide range of applications.
As shown in figure 4, the structural representation of a kind of dirty stifled detection module for embodiment 3, compared with Example 2, increase
For the second switch control circuit 10 controlling light-sensitive element to turn on and off, second switch control circuit connects single-chip microcomputer
Second I/O port, controls opening and turning off of second switch control circuit by the low and high level signal of corresponding I/O port output.
When the dirty stifled degree not presetting installed position to dirt filtrating screen detects, can be with this circuit of reliable turn-off, with respect to not having
The structure of this ON-OFF control circuit, it is to avoid irradiate the photoelectric current producing during light-sensitive element in transmitting in non-detection time ambient light
Power consumption on receiving unit.In the present embodiment 2, described second switch control circuit 10 is transistor switching circuit, including
Triode Q2, resistance R6 and resistance R7, described, the base stage of triode Q2 is connected to the second I/O port of single-chip microcomputer through resistance R6,
Colelctor electrode is connected to the series connection end of described light-sensitive element and resistance R5, transmitting collection ground connection through resistance R4.The base of described triode Q1
Also connect and be grounded after pull down resistor R7 in pole.Using transistor switching circuit, open when needing detection luminous, do not needing to detect
When close, not only control circuit is simple, and can at utmost saving energy consumption.
In the present embodiment, described first switch control circuit, second switch control circuit and change-over circuit are all integrated in master
In control plate, master control borad is additionally provided with power supply unit 5, said supply unit 5 connects described infrarede emitting diode and photoelectricity respectively
Diode, for being described infrarede emitting diode and photodiode is powered.Said supply unit is five volts of voltage regulation filtering
Power supply.In the present embodiment, external device only includes Optical Transmit Unit and light-sensitive element, and remaining control circuit part is arranged in
On master control borad, only need two connecting lines to can achieve transmitting and the reception of signal simultaneously, then a plus company connecting power supply unit
Wiring can achieve whole detection scheme, therefore decreases connecting line, takes up room little it is easy to implementing and reducing cost.
Optical Transmit Unit and light-sensitive element small volume, greatly reduce and take up room simultaneously, thus reducing external device to dirt filtrating screen
The impact of adhesive dust is it is ensured that the accuracy of testing result.Power supply unit is simple simultaneously, need not complicated power supply, only need mainboard
5v powers.By the electric capacity C1 of a ground connection in parallel on power supply, galvanic noise jamming can be removed, make confession
Electricity is cleaner, reduces noise.
In the present embodiment, described single-chip microcomputer comprises analog-digital converter, the analog input end through single-chip microcomputer for the described change-over circuit
Mouth is connected to described analog-digital converter, using analog-digital converter, voltage analog signal is converted into data signal, in order to detect
The illumination intensity information going out, therefore not only can obtain simply dirty stifled or non-dirty stifled testing result, and can obtain
The dirty stifled degree of dirt filtrating screen, thus facilitate information processing and the judgement to this information for the other functions.In the present embodiment, described monolithic
Meet a resistance R5 electric capacity C2 being grounded in parallel again at the output pin of the analog-digital converter of machine, current limliting can be played and go
The effect of coupling.
In other embodiments, can also be by receiving the illumination of the reflected light through default installed position dust reflection
Intensity presets the dirty stifled degree of installed position detecting dirt filtrating screen, the structure of dirty stifled detection module and embodiment 2, embodiment 3
Dirty stifled detection module is essentially identical to pass through default installed position dust it is only necessary to change described photodiode into for receiving
The photodiode of reflected light of reflection or phototriode.In this embodiment, with photodiode or photoelectricity
The resistance both end voltage of triode series connection is bigger, and single-chip microcomputer is converted into that digital information values are bigger, and reflected intensity of illumination is described
Bigger, dust of inspection positions etc. is more, and dirty stifled situation is more serious.
The dirt filtrating screen neglected loading detection method of the present invention and system can be examined when the families such as air-conditioning, air cleaner electrically activate
Survey and whether dirt filtrating screen is installed, and according to testing result, household electrical appliances are controlled, it is to avoid not installing dirt filtrating screen just starts household electrical appliances
Cause user's use feeling to decline, household electrical appliances are caused with the problems such as damage, reduction household electrical appliances service life simultaneously, enriches the work(of electrical equipment
Can, improve users' satisfaction degree.
As shown in figure 4, being a kind of structure structural representation of air-conditioning in embodiment 4, including the leakage of above-described dirt filtrating screen
Dress detecting system.In other embodiments, household electrical appliance can also be air cleaner etc. other be provided with the equipment of dirt filtrating screen.
In describing the invention it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the
One ", the feature of " second " can be expressed or implicitly include at least one this feature.In describing the invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combine.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (14)
1. a kind of dirt filtrating screen neglected loading detection method is it is characterised in that comprise the following steps：
Step 1, when each family electrically activates, detection dirt filtrating screen presets dirty stifled value T of installed position；
Step 2, according to dirty stifled value T and default dirty stifled threshold value T1Comparative result judge whether dirt filtrating screen has been installed, and generate and sentence
Disconnected result；
Household electrical appliances, according to judged result, are taken corresponding control mode by step 3.
2. dirt filtrating screen neglected loading detection method according to claim 1 is it is characterised in that in step 1, continuously detect dirt filtrating screen
The dirty stifled value of default installed position, averages to dirty stifled value or removes and average after maximum and minimum of a value, generates
Dirt filtrating screen presets dirty stifled value T of installed position.
3. dirt filtrating screen neglected loading detection method according to claim 2 is it is characterised in that in step 1, using Photoelectric Detection side
The dirty stifled value of the default installed position of method detection, specially：
Optical Transmit Unit is controlled to irradiate the default installation site of dirt filtrating screen；
Control light-sensitive element to receive and pass through default installed position ash through the transmitted light of described default installation site or reception
The reflected light of dirt reflection；
The transmitted light that receive described light-sensitive element or the intensity of illumination of reflected light are converted into and pacify for representing that dirt filtrating screen is preset
The dirty stifled value of dirty stifled degree at holding position, described dirty stifled value is the magnitude of voltage of the resistance connected with described light-sensitive element.
4. dirt filtrating screen neglected loading detection method according to claim 3 is it is characterised in that described preset dirty stifled threshold value T1=k*
Tn, TnFor the corresponding dirty stifled value of brand-new dirt filtrating screen, the span of k is 0.85～1.
5. according to the arbitrary described dirt filtrating screen neglected loading detection method of Claims 1 to 4 it is characterised in that described step 3 is concrete
For：
When judged result is to install dirt filtrating screen, household electrical appliances are controlled normally to run；When judged result is not install dirt filtrating screen, control
Household electrical appliances processed are in holding state and record detection number of times, then preset installation position at interval of preset time t duplicate detection dirt filtrating screen
Put dirty stifled value T at place, and judge whether dirt filtrating screen has been installed, if judged result is not install dirt filtrating screen, keep household electrical appliances
Holding state adds up to detection number of times simultaneously, when detecting that number of times has reached default detection frequency threshold value, closes household electrical appliances.
6. dirt filtrating screen neglected loading detection method according to claim 5 is it is characterised in that the value model of described preset time t
Enclose for 4～15min, the span presetting detection frequency threshold value is 4～8.
7. dirt filtrating screen neglected loading detection method according to claim 6 is it is characterised in that also include step 4, specially：When
When judged result is not install dirt filtrating screen and/or close household electrical appliances, send alarm signal.
8. a kind of dirt filtrating screen neglected loading detecting system is it is characterised in that include dirty stifled detection module, judge module and control module,
Described dirty stifled detection module is used for detecting dirty stifled value T that dirt filtrating screen presets installed position；
Described judge module is used for according to dirty stifled value T and presets dirty stifled threshold value T1Comparative result judge whether filter dirt has been installed
Net, and generate judged result；
Described control module is used for according to judged result, and household electrical appliances are taken with corresponding control mode.
9. dirt filtrating screen neglected loading detecting system according to claim 8 is it is characterised in that described dirty stifled detection module is used for even
Continuous detection dirt filtrating screen presets the dirty stifled value of installed position, dirty stifled value is averaged or removes and take after maximum and minimum of a value
Mean value, generates dirty stifled value T that dirt filtrating screen presets installed position.
10. dirt filtrating screen neglected loading detecting system according to claim 8 or claim 9 is it is characterised in that described control module is used for working as
When judged result is to install dirt filtrating screen, household electrical appliances are controlled normally to run；When judged result is not install dirt filtrating screen, control household electrical appliances
It is in holding state and records detection number of times, then preset installed position at interval of preset time t duplicate detection dirt filtrating screen
Dirty stifled value T, and judge whether dirt filtrating screen has been installed, if judged result is not install dirt filtrating screen, keep the standby shape of household electrical appliances
State adds up to detection number of times simultaneously, when detecting that number of times has reached default detection frequency threshold value, closes household electrical appliances.
11. dirt filtrating screen neglected loading detecting systems according to claim 10 are it is characterised in that also including alarm module, described
Alarm module is used for, when judged result is not install dirt filtrating screen and/or close household electrical appliances, sending alarm signal.
12. dirt filtrating screen neglected loading detecting systems according to claim 11 are it is characterised in that described dirty stifled detection module includes
The transmitting receiving unit being connected by connector and detector unit, described detector unit is included for the default installation to dirt filtrating screen
The Optical Transmit Unit of light is launched and for receiving the transmitted light passing through described default installation site or receiving through pre- in position
If the light-sensitive element of the reflected light of installed position dust reflection, described transmitting receiving unit is used for controlling described Optical Transmit Unit
Light and the intensity of illumination of the transmitted light for receiving described light-sensitive element or reflected light is converted into for representing filter dirt
The dirty stifled value of the default dirty stifled degree of installed position of net, described dirty stifled value is the voltage of the resistance connected with described light-sensitive element
Value.
A kind of 13. household electrical appliance are it is characterised in that include the arbitrary described dirt filtrating screen neglected loading detecting system of claim 8～12.
14. household electrical appliance according to claim 13 are it is characterised in that described household electrical appliance include air-conditioning and air filtration
Device.
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| CN113091313A (en) * | 2021-03-29 | 2021-07-09 | 青岛海尔空调器有限总公司 | Anti-disassembly control method and system for dust filter screen and fan heater |
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| CN114563321A (en) * | 2022-01-28 | 2022-05-31 | 山东朗进科技股份有限公司 | Filth blockage judgment method for vehicle-mounted air conditioner filter screen |
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