CN109708250A - Frost layer detection method, device and electrical appliance - Google Patents
Frost layer detection method, device and electrical appliance Download PDFInfo
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- CN109708250A CN109708250A CN201811643736.5A CN201811643736A CN109708250A CN 109708250 A CN109708250 A CN 109708250A CN 201811643736 A CN201811643736 A CN 201811643736A CN 109708250 A CN109708250 A CN 109708250A
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- target object
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- preset threshold
- frost layer
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Abstract
This application discloses a kind of frost layer detection method, device and household electrical appliance.Wherein, this method comprises: emitting microwave to target object；The target object is received to the backward energy of the microwave；Judge whether the backward energy is located in preset threshold section, if so, determining that the target object has frost layer.To solve the detection by the temperature on water-collecting tray, it is determined whether it defrosts to water-collecting tray, the lower technical problem of defrosting efficiency.
Description
Technical field
This application involves intelligent appliance fields, in particular to a kind of frost layer detection method, device and electrical appliance.
Background technique
Currently, the condenser of air conditioner is easy to be precipitated when winter makes outdoor temperature is lower moisture, the attachment of moisture of precipitation in
The surface of condenser coil forms frost layer, and with the formation of frost layer, the heating capacity of air-conditioning declines.When reach air-conditioning except ice-lolly
When part, air conditioner will start defrosting mode, the frost layer tied on condenser is melted into water, water flows on water-collecting tray along condenser
And it is discharged from the drainage hole on water-collecting tray.But it if water at the end of defrosting on water-collecting tray is not discharged, will lead to
Condenser frosting again, when the frost layer on condenser, which thickens, to be contacted with the water on chassis, the water on chassis will congeal into ice
Layer, it is untreated for a long time just to will form thicker ice sheet, cause the heating capacity of air-conditioning to decline, or even threaten making for axial flow blower
With safety.
In the prior art, by detecting to the temperature on water-collecting tray, judge whether frosting is judged on water-collecting tray,
But at 0 DEG C, there are three kinds of states, solid-state, liquid, solid-liquid mixings cannot be distinguished by way of thermometric, when in liquid for water
Without starting defrosting mode when state, defrosting mode need to be started in solid-liquid mixing and solid-state, so the detection by temperature determines
Whether defrost to water-collecting tray, accuracy rate is lower, and defrosting efficiency is lower.
In view of the above-mentioned problems, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the present application provides a kind of frost layer detection method, device and electrical appliance, at least to solve by catchmenting
The detection of temperature on disk, it is determined whether it defrosts to water-collecting tray, the lower technical problem of defrosting efficiency.
According to the one aspect of the embodiment of the present application, a kind of frost layer detection method is provided, this method comprises: transmitting microwave
To target object；Target object is received to the backward energy of microwave；Judge whether backward energy is located in preset threshold section, if
It is, it is determined that target object has frost layer.
Optionally, microwave is emitted by microwave radar, wherein microwave radar be located at water-collecting tray where target object with
Between condenser.
Optionally, receiving target object includes: to obtain target object to the electricity of the reflection of microwave to the backward energy of microwave
First amplitude of magnetic wave；The backward energy of microwave is determined based on the first amplitude.
Optionally, before obtaining target object to the first amplitude of the electromagnetic wave of the reflection of microwave, method further include: obtain
Take the second amplitude of the electromagnetic wave of reflection of the target object to microwave；Second amplitude is amplified, the first amplitude is obtained.
Optionally, after emitting microwave to target object, method further include: receive target object and the reflection of microwave is believed
Breath, reflective information includes at least one of: echo polarity, echo amplitude, echo propagate duration；Target object is received to microwave
Reflective information after, method further include: the thickness of frost layer is determined based on echo duration.
Optionally, preset threshold section includes: the first preset threshold section and the second preset threshold section, and frost layer includes ice
Layer and mixed layer, wherein mixed layer includes water-ice mixed layer, and the first preset threshold section corresponds to ice sheet, the second preset threshold area
Between correspond to mixed layer；Judge whether backward energy is located in preset threshold section, if so, determining that target object has frost layer packet
It includes: judging whether backward energy is located in the first preset threshold section, if so, determining that target object has ice sheet, and/or sentence
Whether disconnected backward energy is located in the second preset threshold section, if so, determining that target object has mixed layer.
Optionally it is determined that after target object has frost layer, method further include: send prompt defrosting instruction, prompt defrosting
Instruction is for prompting target device to defrost water-collecting tray.
Optionally, transmitting microwave to target object includes: the high-frequency wideband electromagnetic wave to target object transmitting impulse form.
According to the one aspect of the embodiment of the present application, a kind of household electrical appliance are provided, which includes: microwave thunder
It reaches, microwave radar is located between the water-collecting tray and condenser where target object, for emitting microwave to target object；Receive mesh
Object is marked to the backward energy of microwave；Processor, judges whether backward energy is located in preset threshold section, if so, determining
Target object has frost layer.
According to the one aspect of the embodiment of the present application, a kind of frost layer detection device is provided, which includes: transmitting mould
Block, for emitting microwave to target object；Receiving module, for receiving target object to the backward energy of microwave；Judgment module,
For judging whether backward energy is located in preset threshold section, if so, determining that target object has frost layer.
According to the one aspect of the embodiment of the present application, a kind of storage medium is provided, storage medium includes the program of storage,
Wherein, when program is run, equipment where control storage medium executes above-mentioned frost layer detection method.
According to the one aspect of the embodiment of the present application, a kind of processor is provided, processor is for running program, wherein
Program executes above-mentioned frost layer detection method when running.
In the embodiment of the present application, pass through transmitting microwave to target object；Target object is received to the backward energy of microwave；
Judge whether backward energy is located in preset threshold section, if so, determining that target object has frost layer.Reach and has utilized water
The different states principle different to the backward energy of microwave, by target object to the feedback information of microwave energy, to judge
Whether target object has frost layer, improves the technical effect of the accuracy of judgement.To solve by the temperature on water-collecting tray
Detection, it is determined whether defrost to water-collecting tray, the lower technical problem of defrosting efficiency.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the flow diagram according to a kind of optional frost layer detection method of the embodiment of the present application；
Fig. 2 a is the position assumption diagram according to a kind of optional condenser and water-collecting tray of the embodiment of the present application；
Fig. 2 b is illustrated according to the position of a kind of optional microwave radar of the embodiment of the present application, condenser and water-collecting tray
Figure；
Fig. 3 is a kind of optional home appliance structure schematic diagram according to the embodiment of the present application；
Fig. 4 is the structural schematic diagram according to a kind of optional frost layer detection device of the embodiment of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
According to the embodiment of the present application, a kind of frost layer detection method embodiment is provided, it should be noted that in the stream of attached drawing
The step of journey illustrates can execute in a computer system such as a set of computer executable instructions, although also, flowing
Logical order is shown in journey figure, but in some cases, it can be to be different from shown or described by sequence execution herein
The step of.
Fig. 1 is according to the flow diagram of the frost layer detection method of the embodiment of the present application, as shown in Figure 1, this method is at least
Include the following steps:
Step 102, emit microwave to target object；
In some optional embodiments of the application, target object is object to be detected, is emitted by microwave radar
Microwave, wherein microwave radar is located between the water-collecting tray and condenser where target object.
Fig. 2 a is the position view of condenser 22 and water-collecting tray 24 provided by the embodiments of the present application, and Fig. 2 b is that the application is real
Apply example offer microwave radar 26, condenser 22 and water-collecting tray 24 position view, microwave radar 26 be located at condenser 22 and
Between water-collecting tray 24.
In some optional embodiments of the application, above-mentioned microwave radar 26 can be microwave remote sensor.
In some optional embodiments of the application, transmitting microwave to target object can carry out reality in the following manner
It is existing: to the high-frequency wideband electromagnetic wave of target object transmitting impulse form.
Step 104, target object is received to the backward energy of microwave；
In some optional embodiments of the application, after microwave radar emits microwave to target object, target object
Backward energy will be generated, microwave radar antenna is fed back to.
Step 106, judge whether backward energy is located in preset threshold section, if so, determining that target object has frost
Layer.
When target object is liquid and solid-liquid mixing and solid-state, target object encounters the microwave of identical energy
The backward energy of feedback is different.Wherein, target object is that liquid refers to that target object is water, and target object is solid-liquid mixing feeling the pulse with the finger-tip
Mark object is ice water mixed state, and target object is that solid-state refers to that target object is ice state.
In some optional embodiments of the application, preset threshold section can be with are as follows: the first preset threshold section and the
Two preset threshold sections, frost layer include ice sheet and mixed layer, wherein mixed layer includes water-ice mixed layer, the first preset threshold area
Between correspond to ice sheet, the second preset threshold section corresponds to mixed layer.
In some optional embodiments of the application, judge whether backward energy is located in preset threshold section, if so,
It then determines that there is target object frost layer can be realized in the following manner: judging whether backward energy is located at the first default threshold
It is worth in section, if so, determining that target object has ice sheet；
And/or judge whether backward energy is located in the second preset threshold section, if so, it is mixed to determine that target object has
Close layer.
In some optional embodiments of the application, receiving target object can be by following to the backward energy of microwave
Mode is realized: obtaining target object to the first amplitude of the electromagnetic wave of the reflection of microwave；Microwave is determined based on the first amplitude
Backward energy.
In some optional embodiments of the application, target object gets over the first amplitude of the electromagnetic wave of the reflection of microwave
Greatly, corresponding backward energy is bigger.
In some optional embodiments of the application, target object is being obtained to the first of the electromagnetic wave of the reflection of microwave
It before amplitude, also needs to execute following steps: obtaining target object to the second amplitude of the electromagnetic wave of the reflection of microwave；To the second width
Degree amplifies, and obtains the first amplitude.
In some optional embodiments of the application, second amplitude mistake of the target object to the electromagnetic wave of the reflection of microwave
It is small, cause microwave radar that can not calculate corresponding backward energy, so needing anti-to microwave to the target object received in advance
Second amplitude of the electromagnetic wave penetrated amplifies, and the first amplitude is obtained after amplification.
It should be noted that needing to amplify the calculated echo energy of the first amplitude got according to the second amplitude
Amount, can not need directly as target object to the electromagnetic wave backward energy of microwave reflection according to the second amplitude and the first width
The proportionate relationship of degree determines target object to the actual ghosts energy of the electromagnetic wave of microwave reflection, i.e. corresponding time of the second amplitude
Wave energy.
In some optional embodiments of the application, after emitting microwave to target object, also need to execute following step
Rapid: receive target object to the reflective information of microwave, reflective information includes at least one of: echo polarity, is returned at echo amplitude
Wave propagates duration.
In some optional embodiments of the application, after receiving target object to the reflective information of microwave, also need to hold
Row following steps: the thickness of frost layer is determined based on echo duration.
In some optional embodiments of the application, echo amplitude can be above-mentioned the first amplitude, and/or the second width
Degree, echo when propagating it is a length of emit microwave from microwave radar after, until after microwave radar receives echo, duration experienced；
Wherein, the speed that microwave is propagated in air, in water, in ice water mixed layer, in ice sheet is different, according to microwave in different targets
The velocity information propagated in object, with the distance between microwave radar and water-collecting tray information, it may be determined that the type of target object, with
And the thickness of target object.
In some optional embodiments of the application, to the high-frequency wideband electromagnetic wave of water-collecting tray transmitting impulse form, electricity
Encounter during electromagnetic wave propagation water surface etc. with it with electrical property difference when reflect, table in reflection signal arrival ice sheet (water surface)
Face is received by reception induction antenna, radar return is formed by the conversion amplification quantization of receiver, according to echo polarity, echo
Amplitude, echo waveform echo when walking etc. parameters determine ice layer thickness.
After determining that target object has frost layer, following steps can also be performed: sending prompt defrosting instruction, prompt defrosting
Instruction is for prompting target device to defrost water-collecting tray.In some optional embodiments of the application, target device can
That thinks air-conditioning removes defrosting system.
The scheme of the application can be realized when being that liquid water does not start defrosting on water-collecting tray, be opened when being ice sheet or ice water mixed layer
The case where dynamic defrosting, real-time detection water-collecting tray ponding.
Whether microwave radar can detecte whether have water on chassis, and freeze and icing degree, open according to testing result
Corresponding defrosting and thaw routine are moved, to achieve the effect that prevent air-conditioning from freezing, improving air conditioner refrigerating efficiency reduces failure
Rate.
In the embodiment of the present application, pass through transmitting microwave to target object；Target object is received to the backward energy of microwave；
Judge whether backward energy is located in preset threshold section, if so, determining that target object has frost layer.Reach and has utilized water
The different states principle different to the backward energy of microwave, by target object to the feedback information of microwave energy, to judge
Whether target object has frost layer, improves the technical effect of the accuracy of judgement.To solve by the temperature on water-collecting tray
Detection, it is determined whether defrost to water-collecting tray, the lower technical problem of defrosting efficiency.
Fig. 3 is according to the structural schematic diagram of the household electrical appliance of the embodiment of the present application, as shown in figure 3, the household electrical appliance include:
Microwave radar 32, microwave radar is located between the water-collecting tray and condenser where target object, for emitting microwave
To target object；Target object is received to the backward energy of microwave；
Processor 34, judges whether backward energy is located in preset threshold section, if so, determining that target object has frost
Layer.
It should be noted that the correlation that the preferred embodiment of embodiment illustrated in fig. 3 may refer to embodiment illustrated in fig. 1 is retouched
It states, details are not described herein again.
Fig. 4 is according to the structural schematic diagram of the frost layer detection device of the embodiment of the present application, as shown in figure 4, the device includes:
Transmitting module 42, for emitting microwave to target object；
Receiving module 44, for receiving target object to the backward energy of microwave；
Judgment module 46, for judging whether backward energy is located in preset threshold section, if so, determining target object
With frost layer.
It should be noted that the correlation that the preferred embodiment of embodiment illustrated in fig. 4 may refer to embodiment illustrated in fig. 1 is retouched
It states, details are not described herein again.
The embodiment of the present application also provides a kind of storage medium, storage medium includes the program of storage, wherein is transported in program
Equipment where controlling storage medium when row executes above-mentioned frost layer detection method.
The embodiment of the present application also provides a kind of processor, processor is for running program, wherein program executes when running
Above-mentioned frost layer detection method.
Above-mentioned the embodiment of the present application serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
In above-described embodiment of the application, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of unit, can be one kind
Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of unit or module,
It can be electrical or other forms.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple units
On.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
It, can if integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product
To be stored in a computer readable storage medium.Based on this understanding, the technical solution of the application substantially or
Say that all or part of the part that contributes to existing technology or the technical solution can embody in the form of software products
Out, which is stored in a storage medium, including some instructions are used so that a computer equipment
(can be personal computer, server or network equipment etc.) executes all or part of step of each embodiment method of the application
Suddenly.And storage medium above-mentioned includes: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), mobile hard disk, magnetic or disk.
The above is only the preferred embodiments of the application, it is noted that those skilled in the art are come
It says, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as
The protection scope of the application.
Claims (12)
1. a kind of frost layer detection method, which is characterized in that this method comprises:
Emit microwave to target object；
The target object is received to the backward energy of the microwave；
Judge whether the backward energy is located in preset threshold section, if so, determining that the target object has frost layer.
2. the method according to claim 1, wherein emitting the microwave by microwave radar, wherein described
Microwave radar is located between the water-collecting tray and condenser where the target object.
3. the method according to claim 1, wherein receiving the target object to the backward energy of the microwave
Include:
Obtain the first amplitude of the electromagnetic wave of reflection of the target object to the microwave；
The backward energy of the microwave is determined based on first amplitude.
4. according to the method described in claim 2, it is characterized in that, obtaining target object to the electromagnetism of the reflection of the microwave
Before first amplitude of wave, the method also includes:
Obtain the second amplitude of the electromagnetic wave of reflection of the target object to the microwave；
Second amplitude is amplified, first amplitude is obtained.
5. the method according to claim 1, wherein the method is also after emitting microwave to target object
It include: to receive the target object to the reflective information of the microwave, the reflective information includes at least one of: echo pole
Property, echo amplitude, echo propagate duration；
After the target object is received to the reflective information of the microwave, the method also includes:
The thickness of the frost layer is determined based on the echo duration.
6. the method according to claim 1, wherein the preset threshold section includes: the first preset threshold area
Between with the second preset threshold section, the frost layer includes ice sheet and mixed layer, wherein the mixed layer includes water-ice mixed layer,
First preset threshold section corresponds to the ice sheet, and second preset threshold section corresponds to the mixed layer；
Judge whether the backward energy is located in preset threshold section, if so, determining that the target object has frost layer packet
It includes:
Judge whether the backward energy is located in the first preset threshold section, if so, determining that the target object has ice
Layer, and/or
Judge whether the backward energy is located in the second preset threshold section, if so, it is mixed to determine that the target object has
Close layer.
7. method according to claim 1 or 6, which is characterized in that described after determining that the target object has frost layer
Method further include:
Prompt defrosting instruction is sent, the prompt defrosting instruction is for prompting target device to defrost water-collecting tray.
8. the method according to claim 1, wherein the transmitting microwave to target object includes:
To the high-frequency wideband electromagnetic wave of target object transmitting impulse form.
9. a kind of household electrical appliance, which is characterized in that the household electrical appliance include:
Microwave radar, microwave radar is located between the water-collecting tray and condenser where target object, for emitting microwave to target
Object；The target object is received to the backward energy of the microwave；
Processor, judges whether the backward energy is located in preset threshold section, if so, determining that the target object has
Frost layer.
10. a kind of frost layer detection device, which is characterized in that the device includes:
Transmitting module, for emitting microwave to target object；
Receiving module, for receiving the target object to the backward energy of the microwave；
Judgment module, for judging whether the backward energy is located in preset threshold section, if so, determining the target pair
As with frost layer.
11. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment perform claim require any one of 1 to 8 described in frost layer detection method.
12. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 8 described in frost layer detection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643736.5A CN109708250A (en) | 2018-12-29 | 2018-12-29 | Frost layer detection method, device and electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643736.5A CN109708250A (en) | 2018-12-29 | 2018-12-29 | Frost layer detection method, device and electrical appliance |
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| CN109708250A true CN109708250A (en) | 2019-05-03 |
Family
ID=66260336
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| CN201811643736.5A Pending CN109708250A (en) | 2018-12-29 | 2018-12-29 | Frost layer detection method, device and electrical appliance |
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Application publication date: 20190503 |