CN105258433B - The defrosting control method of wind cooling refrigerator and wind cooling refrigerator - Google Patents
The defrosting control method of wind cooling refrigerator and wind cooling refrigerator Download PDFInfo
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- CN105258433B CN105258433B CN201510655004.8A CN201510655004A CN105258433B CN 105258433 B CN105258433 B CN 105258433B CN 201510655004 A CN201510655004 A CN 201510655004A CN 105258433 B CN105258433 B CN 105258433B
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Abstract
The invention provides a kind of wind cooling refrigerator and the defrosting control method of wind cooling refrigerator.Wherein wind cooling refrigerator includes：Air channel, it is configured to provide cooling flow to the compartment of refrigerator, and there is the cooling chamber for being used for arranging cooler in air channel；Cooler, as the low-temperature receiver of refrigerator, it is configured to freeze to air-flow therethrough；Image capturing device, it is arranged in cooling chamber, is configured to shoot cooler；One or more frosting instruction cards, it is arranged in cooler on the part in image capturing device coverage, and its color configuration shows a sharp contrast into the color and white with cooler；Defrosting device, the cooler that reclines are set, and are configured to start after the image of the shooting according to image capturing device determines that frosting instruction card is frosted covering, to carry out defrost to cooler.Using technical scheme, before the heat transfer efficiency of cooler deteriorates, timely defrost, influence of the frosting to wind cooling refrigerator heat exchange efficiency efficiently avoid.
Description
Technical field
The present invention relates to a kind of control of refrigerator, the defrosting control method of more particularly to a kind of wind cooling refrigerator and wind cooling refrigerator.
Background technology
As rhythm of life is constantly accelerated, the number that consumer purchases food is reduced, but the amount purchased is continuously increased, very
It is to concentrate shopping once in one week when more.Such substantial amounts of food, it is necessary to which the fresh-keeping effect of refrigerator is more preferable, and capacity is bigger.Wind
Cold refrigerator just meets these demands.
At present, air-cooled technology by built-in hiding cooler (such as evaporator of coolant circulating system) to flowing through its
Air is freezed, and forces circulating cold air to flow by fan, so that cold air is uniformly distributed in each compartment of refrigerator, realizes system
It is cold.The refrigeration speed of wind cooling refrigerator.For large-capacity refrigerator, use is more convenient.Wind cooling refrigerator is main
On product applied to more than 280L Large Copacity, because its refrigerator compartment internal temperature is more accurate etc. than more uniform, temperature control
Feature, sales volume fast lifting.
But the circulating current of existing wind cooling refrigerator has taken away the water in food when flowing out the air outlet of refrigerator room
Point, air when through subcooler, to the cold can the frosting on cooler, cause conduct heat sales volume decline, reduce refrigerator operation effect
Rate, it is necessary to carry out defrost after a period of time is run.Existing defrosting control method mainly passes through press accumulated running time
To control refrigerator to start defrost, defrost is terminated by temperature sensor and defrost heating wire works time.Then temperature is passed through
Sensor and defrost heating wire works time span terminate defrost.Above-mentioned control method realizes that the defrost time is partially long, process electricity
Consumption is big, and control accuracy is poor, can not have any actual knowledge of upper the frosting situation and defrost situation of cooler.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve on
State the wind cooling refrigerator of problem and the defrosting control method of wind cooling refrigerator.
The present invention one is further objective is that improve the heat exchange efficiency of wind cooling refrigerator.
The present invention another further objective is that reduce defrost consumption electric energy.
A kind of according to an aspect of the invention, there is provided wind cooling refrigerator.The wind cooling refrigerator includes：Air channel, be configured to
The compartment of refrigerator provides cooling flow, and has the cooling chamber for being used for arranging cooler in air channel；Cooler, as refrigerator
Low-temperature receiver, it is configured to freeze to air-flow therethrough；Image capturing device, it is arranged in cooling chamber, is configured to cooler
Shot；One or more frosting instruction cards, it is arranged at the part in image capturing device coverage in cooler
On, and its color configuration shows a sharp contrast into the color and white with cooler；Defrosting device, the cooler that reclines are set,
And the image being configured in the shooting according to image capturing device determines that frosting instruction card starts after being frosted covering, with right
Cooler carries out defrost.
Alternatively, each frosting instruction card includes the colour code post that multiple parallel intervals are set, the color of each frosting instruction card
Distance pole color is arranged to different.
Alternatively, above-mentioned wind cooling refrigerator also includes：One or more background boards, it is correspondingly arranged with frosting instruction card, as
The background of frosting instruction card in the shooting image of image capturing device, the color configuration of background board is into the face with frosting instruction card
Color, the color of cooler and white show a sharp contrast.
Alternatively, defrosting device is arranged at the bottom of cooler, and frosting instruction card includes：First instruction card, set
In the bottom of one side of cooler；Second instruction card, is arranged at the top of another side of cooler, and background board includes：First
Background board, the supporting plate of cooler is arranged at adjacent to the first instruction card side；Second background board, it is arranged at the supporting plate of cooler
Neighbouring second instruction card side.
Alternatively, image capturing device includes：First camera, shooting direction are carried on the back towards the first instruction card, and by first
Background of the scape plate as the first instruction card graphic；Second camera, shooting direction is towards the second instruction card, and by the second background board
Background as the second instruction card graphic.
Alternatively, defrosting device is configured to：It is determined that None- identified goes out the first finger in the image of the first camera shooting
None- identified goes out startupization after the color of the second instruction card in the color for showing card and/or the image for determining second camera shooting
Frost；And it is determined that in the image of the first instruction card the first instruction card appear completely and in the image of the second instruction card second refer to
Show that card stops defrost after appearing completely.
According to another aspect of the present invention, a kind of defrosting control method of wind cooling refrigerator is additionally provided, for the above
Any wind cooling refrigerator introduced carries out defrost, and control method includes：Obtain the image capturing device shooting of wind cooling refrigerator
The obtained cooler image with frosting instruction card；Graphical analysis is carried out to cooler image, to judge that frosting instruction card is
It is no to be frosted covering；After determining that frosting instruction card is frosted covering, start the defrosting device of wind cooling refrigerator.
Alternatively, the image capturing device for obtaining wind cooling refrigerator shoots the obtained cooler image with frosting instruction card
The step of include：Obtain be arranged at one side of cooler bottom the first instruction card image, and obtain be arranged at it is cold
But the image of second instruction card on the top of another side of device；And the step of starting the defrosting device of wind cooling refrigerator includes：
Determine that None- identified goes out nothing in the color of the first instruction card and/or the image for determining the second instruction card in the image of the first instruction card
Method starts defrosting device after identifying the color of the second instruction card.
Alternatively, also include after the step of starting the defrosting device of wind cooling refrigerator：It is determined that the figure of the first instruction card
As in the first instruction card appear completely and and/or the image of the second instruction card in the second instruction card appear completely after close defrost
Device.
Alternatively, the image capturing device for obtaining wind cooling refrigerator shoots the obtained cooler image with frosting instruction card
The step of include：Start timing when wind cooling refrigerator starts refrigerating operaton；Obtained once at interval of predetermined refrigeration shooting duration of video
Cooler image, until meeting the condition for starting defrosting device.
Alternatively, also include after the step of starting the defrosting device of wind cooling refrigerator：Start to count after defrosting device startup
When；A cooler image is obtained at interval of predetermined defrost shooting duration of video, until meeting the condition for closing defrosting device.
The wind cooling refrigerator of the present invention and the defrosting control method of wind cooling refrigerator, utilize the image taking being arranged in cooling chamber
Device is shot to cooler, and the image obtained using shooting determines whether cooler is covered by frosting, determines defrost in time
Start point, before the heat transfer efficiency of cooler deteriorates, take measures in time, efficiently avoid frosting and wind cooling refrigerator is exchanged heat
The influence of efficiency, and for the ease of image recognition, be also provided with frosting instruction card, by obvious color contrast, improve from
The accuracy of frosting situation is identified in image.
Further, the defrosting control method of wind cooling refrigerator of the invention and wind cooling refrigerator, filled in cooler close to defrost
The side put and the side away from defrosting device are respectively arranged frosting instruction card and as frosting instruction card shooting background
Background board, by shooting the image of different frosting instruction cards respectively, the overall frosting of cooler and defrost situation are determined, further
Improve the effect of defrost.
Further, the defrosting control method of wind cooling refrigerator of the invention and wind cooling refrigerator, refrigeration for refrigerator can also be transported
Row time and the defrost time of refrigerator combine image recognition technology and carry out defrosting control, realize accurate defrost.
In addition, the wind cooling refrigerator of the present invention and the defrosting control method of wind cooling refrigerator, the cooling of image capturing device shooting
Device picture can also be uploaded, for realizing that remote failure judges.
According to the accompanying drawings will be brighter to the detailed description of the specific embodiment of the invention, those skilled in the art
Above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the schematic diagram of wind cooling refrigerator according to an embodiment of the invention；
Fig. 2 is the schematic elevational view of cooler in wind cooling refrigerator according to an embodiment of the invention；
Fig. 3 is the left side schematic elevational view of cooler in wind cooling refrigerator according to an embodiment of the invention；
Fig. 4 is the schematic right-side view of cooler in wind cooling refrigerator according to an embodiment of the invention；
Fig. 5 is the schematic block diagram of data handling system in wind cooling refrigerator according to an embodiment of the invention；
Fig. 6 is the schematic diagram of the defrosting control method of wind cooling refrigerator according to an embodiment of the invention；
Fig. 7 be wind cooling refrigerator according to an embodiment of the invention defrosting control method in process of refrigerastion flow chart；
And
Fig. 8 be wind cooling refrigerator according to an embodiment of the invention defrosting control method in defrost process flow chart.
Embodiment
Present embodiments provide a kind of defrosting control method of wind cooling refrigerator and wind cooling refrigerator.Fig. 1 is according to the present invention one
The schematic diagram of the wind cooling refrigerator of individual embodiment.The wind cooling refrigerator 10 may include casing 100, be defined in casing 100 more
Individual storing compartment and air channel 30.Multiple storing compartments can have different temperature ranges, for providing different storage ambients.
Such as refrigerator room 110 and freezing compartment 120 can be included in multiple storing compartments, in addition, storing compartment can also flexibly increase
Add and put quick-frozen room and/or ice-making compartment.
Air channel 200 is used to produce the air-flow in the indoor circulation of storing, be provided with the inside of air channel 200 blower fan 210210 with
And for arranging the cooling chamber 230 of cooler 220.Cooler 220 upon actuation, can freeze to air-flow therethrough, gas
Moisture in stream can the frosting on cooler 220.Low-temperature receiver of the cooler 220 as refrigerator 10, coolant circulating system can be used
Evaporator.Air-flow after heat exchange is carried out by air-supply passage through refrigerator room 110 and freezing compartment 120 with cooler 40
Air outlet respectively enters refrigerator room 110 and freezing compartment 120, to complete to freeze.Air-flow is from refrigerator room 110 and freezing compartment
120 return air inlet puts back to the upstream of cooling chamber 230 by return air channel, realizes kind of refrigeration cycle.
Defrost is carried out to cooler 220 in order to realize, adjacent cooler 220 is also provided with defrosting device.The defrost
Device can be that the surface of cooler 220 is heated using the various realizations such as electrical heating wire, infrared heating device, cold to melt
But the frosting on the surface of device 220.The wind cooling refrigerator 10 of the present embodiment in order to carry out accurately defrosting control to above cooler 220,
It is additionally provided with the parts such as image capturing device, frosting instruction card 310, background board 320.
Fig. 2 is the schematic elevational view of cooler 220 in wind cooling refrigerator 10 according to an embodiment of the invention, and Fig. 3 is
The left side schematic elevational view of cooler 220 in wind cooling refrigerator 10 according to an embodiment of the invention；Fig. 4 is according to of the invention one
The schematic right-side view of cooler 220 in the wind cooling refrigerator 10 of embodiment.It can be seen that cooler 220 can make by Fig. 2 to Fig. 4
With finned evaporator, including coiled pipe and the fin that is set on coiled pipe.The cooler 220 can be by the support of both sides
Plate 240 is fixed.In further embodiments, cooler 220 can also use the heat-exchanger rig of other forms.
Image capturing device (not shown) can be arranged in cooling chamber 230, be configured to clap cooler 220
Take the photograph.Figure filming apparatus can be configured with light source, to provide shooting illumination in the cooling chamber 230 of closing.
One or more frosting instruction cards 310, it is arranged in cooler 220 in image capturing device coverage
On part, and its color configuration shows a sharp contrast into the color and white with cooler 220.Each frosting instruction card 310
The colour code post set including multiple parallel intervals, the colour code post color of each frosting instruction card 310 are arranged to different.Show in figure
Go out the situation that each frosting instruction card 310 is provided with two colour code posts, in actual use can be with flexible configuration colour code post
Number.Colour code post can select the color that the color of red, green, yellow etc. and cooler 220 and white show a sharp contrast.
The color of adjacent colour code post, which is set, is preferably arranged to difference, and frosting instruction card 310 can use and the identical material of cooler 220
Material is made, and is bearing directly against on cooler 220, to ensure and frosting and the defrost simultaneously of cooler 220.
In order to further improve the identity of image, wind cooling refrigerator 10 also includes：One or more background boards 320, with knot
White instruction card 310 is correspondingly arranged, as the background of frosting instruction card 310 in the shooting image of image capturing device, background board 320
Color configuration into the color with frosting instruction card 310, the color of cooler 220, white show a sharp contrast.Indicated in frosting
In the case that card 310 is arranged to red, green, background board 320 could be arranged to yellow.
Defrosting device, the cooler 220 that reclines are set, and a kind of optional position is the bottom for being arranged at cooler 220.
Defrosting device can open after the image of the shooting according to image capturing device determines that frosting instruction card 310 is frosted covering
It is dynamic, to carry out defrost to cooler 220, and frosting instruction card 310 is determined in the image of the shooting according to image capturing device
Closed after all appearing, stop carrying out defrost to cooler 220.Because the image of the shooting of image capturing device directly reflects
The surface condition of cooler 220, defrosting control can be targetedly carried out, on the one hand avoiding frosting influences cooler 220
Heat exchange efficiency, the electric energy of defrost consumption is on the other hand reduced as far as possible.
In order to further improve the accuracy of defrost, frosting instruction card can be set in the both sides of cooler 220 respectively
310.Wherein the first instruction card, it is arranged at the bottom of 220 1 sides of cooler；Second instruction card, it is another to be arranged at cooler 220
The top of one side.The instruction card of the above first and the second instruction card match respectively sets background board 320, wherein the first background board
320 are arranged at the supporting plate 240 of cooler 220 adjacent to the first instruction card side；Second background board 320 is arranged at cooler 220
Supporting plate 240 adjacent to the second instruction card side.
Due to the airflow direction of cooling chamber 230 generally from bottom to up, its air inlet is generally positioned under cooler 220
Side, the bottom for causing cooler 220 are the serious region of frosting.Accordingly, defrosting device is arranged at the lower section of cooler 220.
First instruction card, the bottom of 220 1 sides of cooler is arranged at, with close to defrosting device.Multiple colour codes of first instruction card
Post, the pipeline for being posted by 220 1 sides of cooler are set.The first background board 320 set is matched with first instruction card to set
It is placed in the supporting plate 240 adjacent with the first instruction card, and height, image capturing device suitable with the height of the first instruction card
Shooting direction it is relative with the first instruction card and the first background board 320.When the frosting of cooler 220 is less, the first instruction card is not
It can be completely covered by frost, the picture for the first instruction card for shooting to obtain can be rendered obvious by out the first instruction card and the first background
Plate 320.After the frosting of cooler 220, the first instruction card frosting since the position at cooler 220, until first refers to
Show that the colour code post of card is all covered by the frost of white, the face of the first instruction card script can not be determined in the picture of the first instruction card
Color.
Second instruction card, the top of 220 another side of cooler is arranged at, is arranged away from defrosting device.Second instruction card
Multiple colour code posts, be posted by the pipeline of cooler 220.The second background board 320 set is matched with second instruction card to set
In in the supporting plate 240 adjacent with the second instruction card, and height is suitable with the height of the second instruction card, image capturing device
Shooting direction is relative with the second instruction card and the second background board 320.When the frosting of cooler 220 is less, the second instruction card will not
It is completely covered by frost, the picture for the second instruction card for shooting to obtain can be rendered obvious by out the second instruction card and the second background board
320.After the frosting of cooler 220, the second instruction card frosting since the position at cooler 220, until the second instruction
The colour code post of card is all covered by the frost of white, and the face of the second instruction card script can not be determined in the picture of the second instruction card
Color.
Image capturing device can distinguish each frosting instruction card 310 and configure a camera, such as set the first shooting
The background that head is provided with shooting direction towards the first instruction card and using the first background board 320 as the first instruction card graphic, and
Second camera is set, and shooting direction is towards the second instruction card, and the back of the body using the second background board 320 as the second instruction card graphic
Scape.The height of first camera can be suitable with the height of the first instruction card, and the height of second camera can be with the second instruction
The height of card is suitable.
For the wind cooling refrigerator 10 of above example, the condition that defrosting device starts can be：Determine that the first camera is clapped
None- identified goes out the color of the first instruction card and/or determines that None- identified goes out in the image that second camera is shot in the image taken the photograph
The color of second instruction card.When namely determining a part for cooler 220 influences heat exchange efficiency, start defrosting device.
Defrosting device stop condition can be：Determine in the image of the first instruction card the first instruction card appear completely and
The second instruction card appears completely in the image of second instruction card.Namely in the clean rear stopping defrost it is determined that cooler 220 defrosts.
Fig. 5 is the schematic block diagram of data handling system in wind cooling refrigerator 10 according to an embodiment of the invention, the wind
Cold refrigerator 10 is provided with master control borad 410, and the master control borad 410 can gather the operating state data of wind cooling refrigerator 10, mutually reply pressure
Contracting machine 410, blower fan 210 send control signal, and master control borad 410 can also obtain image capturing device 430 and shoot carrying of obtaining
The image of cooler 220 of frosting instruction card 310, the image is identified out the frosting situation of cooler 220, to defrosting device
250 issue corresponding control signal.In addition wind cooling refrigerator 10 is also provided with data transmission device 440, to server or
The operating state data of user terminal uploads images above and/or wind cooling refrigerator 10, so that user understands the running situation of refrigerator,
In the case where exception occurs in refrigerator, remote failure is carried out according to the operating state data of images above and/or wind cooling refrigerator 10
Diagnosis.
In addition, images above identification process, can also be completed by server side, master control borad 410 passes through data transmission device
440 shoot the obtained image of cooler 220 with frosting instruction card 310 to server transmission image capturing device 430.Service
Device is handled the image, is determined the frosting result of cooler 220, is returned to master control borad 410, so that master control borad 410 is pressed
According to control signal corresponding to frosting result to defrosting device transmission.
The embodiment of the present invention additionally provides a kind of defrosting control method of wind cooling refrigerator 10, with to any of the above embodiment
Wind cooling refrigerator 10 be controlled.Fig. 6 is showing for the defrosting control method of wind cooling refrigerator 10 according to an embodiment of the invention
It is intended to.The defrosting control method of the wind cooling refrigerator 10 can include in general manner：
Step S602, obtain wind cooling refrigerator 10 image capturing device 430 shoot obtain with frosting instruction card 310
The image of cooler 220；
Step S604, graphical analysis is carried out to the image of cooler 220, covered with judging whether frosting instruction card 310 is frosted
Lid；
Step S606, after determining that frosting instruction card 310 is frosted covering, start the defrosting device of wind cooling refrigerator 10.
In the case where being disposed with two termination instruction cards of the first instruction card and the second instruction card, step S602 can be obtained
The image of the first instruction card of the bottom of 220 1 sides of cooler is arranged at, and obtains and is arranged at the opposite side of cooler 220
The image of second instruction card on the top on side；And starting the condition of the defrosting device of wind cooling refrigerator 10 includes：Determine the first finger
Show that None- identified in the image of card goes out None- identified in the color of the first instruction card and/or the image for determining the second instruction card and goes out the
The color of two instruction cards.
After the step of starting the defrosting device of wind cooling refrigerator 10, closing the condition of defrosting device also includes：It is determined that
In the image of first instruction card the first instruction card appear completely and and/or the image of the second instruction card in the second instruction card it is complete
Appear.
In addition, the defrosting control method of the wind cooling refrigerator 10 of the present embodiment, can also by refrigeration for refrigerator run time and
The defrost time of refrigerator combines image recognition technology and carries out defrosting control, realizes accurate defrost.Such as step S602 can be：
Wind cooling refrigerator 10 starts to start timing during refrigerating operaton；A figure of cooler 220 is obtained at interval of predetermined refrigeration shooting duration of video
Picture, until meeting the condition for starting defrosting device.In addition, start timing after defrosting device startup；At interval of predetermined defrost
Shooting duration of video obtains an image of cooler 220, until meeting the condition for closing defrosting device.
It is that wind cooling refrigerator 10 according to an embodiment of the invention starts defrost and stops the reality of the process of defrost below
Example, in introduced below, the parameter and the explanation of parameter that use are：
N represents n-th of entire run periodicity of refrigerator；
TDI represents defrost time parameter；
TDI_n represents n-th defrost duration；
TDI_n-1 represents (n-1)th defrost duration；
TDI represents defrost duration constant；
TDI_low represents defrost duration lower limit；
TDI_up represents the defrost duration upper limit；
Δ TDI represents defrost duration increment；
NDI represents period in defrost；
TRI represents refrigeration for refrigerator operation time parameters；
TRI_n represents n-th of cycle refrigerating operaton duration of refrigerator；
TRI_n-1 represents the (n-1)th cycle of refrigerator refrigerating operaton duration；
Long constant when TRI represents refrigerating operaton；
TRI_low represents refrigerating operaton duration lower limit；
TRI_up represents the refrigerating operaton duration upper limit；
Δ TRI represents refrigerating operaton duration increment；
NRI represents period in refrigerating operaton.
Fig. 7 be wind cooling refrigerator 10 according to an embodiment of the invention defrosting control method in process of refrigerastion flow
Figure；After cooling activation, the control flow of wind cooling refrigerator 10 is divided into two set of steps.
In first set of steps S702, (the system of the upper refrigerating operaton cycle of the current refrigeration cycle of operation was first according to
The cold operation cycle refers to that wind cooling refrigerator 10 completes the time once freezed with defrost), transported according to freezing in the upper cold operation cycle
Capable duration carries out a series of judgements, and this refrigerating operaton target duration is set according to judged result.Can be with deterministic process
Refrigerating operaton duration lower limit TRI_low and the refrigerating operaton duration upper limit two parameters of TRI_up are pre-set, in a upper cold operation
The duration TRI_n-1 of refrigerating operaton exceedes the situation of the two parameters in cycle, and this refrigerating operaton target duration tRI is set
For TRI_up or TRI_low, tRI is otherwise arranged to TRI_n-1.Such as work as TRI_n-1<During TRI_low, TRI_n is arranged to
TRI_low；TRI_up<During TRI_n-1, TRI_n is arranged to TRI_up, as TRI_low≤TRI_n-1≤TRI_up, TRI_n
It is arranged to TRI_n-1.
In second step set S704, pre-set refrigerating operaton duration increment Delta TRI, often by Δ TRI when
Between be spaced, the frosting instruction card 310 on the surface of cooler 220 is shot using image capturing device 430, it is determined that shooting
None- identified starts defrost process after going out the color of frosting instruction card 310 in image；If not needing defrost, Δ TRI is run
Judge again afterwards, until judgement of taking pictures needs defrost or run time to reach the upper limit.
Fig. 8 be wind cooling refrigerator 10 according to an embodiment of the invention defrosting control method in defrost process flow
Figure；After defrost startup, the control flow of wind cooling refrigerator 10 is divided into two set of steps.
In first set of steps S802, (the system of the upper defrost cycle of operation of the current refrigeration cycle of operation was first according to
The cold operation cycle refers to that wind cooling refrigerator 10 completes the time once freezed with defrost), transported according to defrost in the upper cold operation cycle
Capable duration carries out a series of judgements, and this defrost operational objective duration is set according to judged result.Can be with deterministic process
Defrost operation duration lower limit TDI_low and the defrost operation duration upper limit two parameters of TDI_up are pre-set, in a upper cold operation
The duration TDI_n-1 that defrost is run in cycle exceedes the situation of the two parameters, and this defrost operational objective duration tDI is set
For TDI_up or TDI_low, tDI is otherwise arranged to TDI_n-1.Such as work as TDI_n-1<During TDI_low, TDI_n is arranged to
TDI_low；TDI_up<During TDI_n-1, TDI_n is arranged to TDI_up, as TDI_low≤TDI_n-1≤TDI_up, TDI_n
It is arranged to TDI_n-1.
In second step set S804, pre-set defrost operation duration increment Delta TDI, often by Δ TDI when
Between be spaced, the frosting instruction card 310 on the surface of cooler 220 is shot using image capturing device 430, it is determined that shooting
Identify that frosting instruction card 310 appears completely in image, then defrost is completed, and is returned and is performed process of refrigerastion.As defrost does not complete, then
Judge again after operation Δ TDI, until taking pictures judges that defrost has been completed or run time reaches the upper limit.
After the completion of defrost, return and perform refrigeration control flow, and the number of the cycle of operation is added up.
The wind cooling refrigerator 10 of the present embodiment and the defrosting control method of wind cooling refrigerator 10, using being arranged in cooling chamber 230
Image capturing device 430 cooler 220 is shot, determine whether cooler 220 is tied using the obtained image of shooting
Frost covering, determine that defrost starts point in time, before the heat transfer efficiency of cooler 220 deteriorates, take measures, effectively keep away in time
Exempt from influence of the frosting to the heat exchange efficiency of wind cooling refrigerator 10, and for the ease of image recognition, be also provided with frosting instruction card
310, by obvious color contrast, improve the accuracy that frosting situation is identified from image.
Further, the defrosting control method of the bright wind cooling refrigerator 10 of the present embodiment and wind cooling refrigerator 10, in cooler 220
Close to the side of defrosting device and the side away from defrosting device is respectively arranged frosting instruction card 310 and indicated as frosting
Block the background board 320 of 310 shooting backgrounds, by shooting the image of different frosting instruction cards 310 respectively, determine that cooler 220 is whole
The frosting of body and defrost situation, further improve the effect of defrost.
Further, the defrosting control method of the wind cooling refrigerator 10 of the present embodiment and wind cooling refrigerator 10, can also be by ice
Case refrigerating operaton time and the defrost time of refrigerator combine image recognition technology and carry out defrosting control, realize accurate defrost.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, still can be direct according to present disclosure without departing from the spirit and scope of the present invention
It is determined that or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognized
It is set to and covers other all these variations or modifications.
Claims (6)
1. a kind of wind cooling refrigerator, including：
Air channel, it is configured to provide cooling flow to the compartment of the refrigerator, and has in the air channel and be used to arrange cooler
Cooling chamber；
Cooler, as the low-temperature receiver of the refrigerator, it is configured to freeze to air-flow therethrough；
Image capturing device, it is arranged in the cooling chamber, is configured to shoot the cooler；
Frosting instruction card, it is arranged in the cooler on the part in described image filming apparatus coverage, and
Its color configuration shows a sharp contrast into the color and white with the cooler, and each frosting instruction card includes multiple flat
The colour code post that between-line spacing is set, the colour code post color of each frosting instruction card are arranged to different；
Defrosting device, the cooler that reclines are set, and are arranged at the bottom of the cooler, and be configured to according to the figure
As the image of the shooting of filming apparatus determine the frosting instruction card be frosted covering after start, with to the cooler carry out
Defrost；
Background board, it is correspondingly arranged with the frosting instruction card, frosting described in the shooting image as described image filming apparatus
The background of instruction card, the color configuration of the background board into the color with the frosting instruction card, the color of the cooler, with
And white shows a sharp contrast, wherein
The frosting instruction card includes：First instruction card, it is arranged at the bottom of one side of cooler；Second instruction card,
The top of another side of the cooler is arranged at,
The background board includes：First background board, the supporting plate of the cooler is arranged at adjacent to the first instruction card side；
Second background board, the supporting plate of the cooler is arranged at adjacent to the second instruction card side；
Described image filming apparatus includes：First camera, shooting direction are carried on the back towards first instruction card, and by described first
Background of the scape plate as the described first instruction card graphic；Second camera, shooting direction is towards second instruction card, and by institute
State background of second background board as the described second instruction card graphic.
2. wind cooling refrigerator according to claim 1, wherein the defrosting device is configured to：
It is determined that None- identified goes out color and/or the determination institute of first instruction card in the image of first camera shooting
State None- identified in the image of second camera shooting and start defrost after going out the color of second instruction card；And
It is determined that the first instruction card described in the image of first instruction card appears completely and the figure of second instruction card
The second instruction card stops defrost after appearing completely as described in.
A kind of 3. defrosting control method of wind cooling refrigerator, for wind cooling refrigerator according to claim 1 or 2
Frost, and the control method includes：
The image capturing device for obtaining the wind cooling refrigerator shoots the obtained cooler image with frosting instruction card；
Graphical analysis is carried out to the cooler image, to judge whether the frosting instruction card is frosted covering；
After determining that the frosting instruction card is frosted covering, start the defrosting device of the wind cooling refrigerator, wherein
Obtain the step of image capturing device of the wind cooling refrigerator shoots the obtained cooler image with frosting instruction card
Including：Obtain the image of the first instruction card of the bottom for being arranged at one side of cooler, and obtain be arranged at it is described
The image of second instruction card on the top of another side of cooler；And
The step of defrosting device for starting the wind cooling refrigerator, includes：It is determined that None- identified in the image of first instruction card
None- identified goes out second instruction card in the color for going out first instruction card and/or the image for determining second instruction card
Color after start the defrosting device.
4. according to the method for claim 3, wherein, also wrapped after the step of starting the defrosting device of the wind cooling refrigerator
Include：
It is determined that the first instruction card described in the image of first instruction card appears completely and and/or second instruction card
Image described in the second instruction card appear completely after close the defrosting device.
5. the method according to claim 3 or 4, wherein, the image capturing device for obtaining the wind cooling refrigerator shoots to obtain
The cooler image with frosting instruction card the step of include：
Start timing when the wind cooling refrigerator starts refrigerating operaton；
The once cooler image is obtained at interval of predetermined refrigeration shooting duration of video, until meeting to start the defrosting device
Condition.
6. the method according to claim 3 or 4, wherein, after the step of starting the defrosting device of the wind cooling refrigerator also
Including：
Start timing after defrosting device startup；
The once cooler image is obtained at interval of predetermined defrost shooting duration of video, until meeting to close the defrosting device
Condition.
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| CN201510655004.8A CN105258433B (en) | 2015-10-10 | 2015-10-10 | The defrosting control method of wind cooling refrigerator and wind cooling refrigerator |
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| CN106096611A (en) * | 2016-04-29 | 2016-11-09 | 南京巨鲨显示科技有限公司 | A kind of Chemical indicative card identification interpreting system |
| CN106568251A (en) * | 2016-10-11 | 2017-04-19 | 珠海格力电器股份有限公司 | Refrigerating equipment defrosting control method and device and refrigerating equipment with device |
| CN107166867B (en) * | 2017-05-09 | 2019-08-23 | 合肥美的智能科技有限公司 | Image output control method, controller and refrigerator |
| CN108426345A (en) * | 2018-04-04 | 2018-08-21 | 陕西建工安装集团有限公司 | A kind of multi-connected machine outdoor unit defrosting control system and method |
| CN110657617A (en) * | 2018-06-29 | 2020-01-07 | 博西华电器（江苏）有限公司 | Defrosting control method and device for refrigerator and refrigerator |
| CN111238124A (en) * | 2018-11-28 | 2020-06-05 | 宁波泽锦电器科技有限公司 | Regional temperature-rise gear control platform |
| CN110307617B (en) * | 2019-07-03 | 2020-05-26 | 珠海格力电器股份有限公司 | Heat exchanger, filth blockage detection method, device and system thereof, and electrical equipment |
| CN110500848A (en) * | 2019-09-05 | 2019-11-26 | 邹庆丰 | A kind of refrigerator to be frozen using the detection of artificial intelligence picture recognition |
| DE102022113411A1 (en) * | 2022-05-27 | 2023-11-30 | Güntner Gmbh & Co. Kg | Method for operating a heat exchanger and device with a heat exchanger |
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