CN112944596A - Control method and device for defrosting of air conditioner and air conditioner - Google Patents
Control method and device for defrosting of air conditioner and air conditioner Download PDFInfo
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- CN112944596A CN112944596A CN202110235187.3A CN202110235187A CN112944596A CN 112944596 A CN112944596 A CN 112944596A CN 202110235187 A CN202110235187 A CN 202110235187A CN 112944596 A CN112944596 A CN 112944596A
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- air conditioner
- area
- defrosting
- image
- outdoor unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
Abstract
The application relates to the technical field of intelligent household appliance control, and discloses a control method for defrosting of an air conditioner. Collecting a first image of an outdoor unit of an air conditioner; if the shielding object exists on the air conditioner outdoor unit extracted from the first image, determining the position and the area of the shielding object; and determining the defrosting mode of the air conditioner according to the position of the shelter and the area of the shelter. In the scheme, the first image of the air conditioner outdoor unit is collected, and when the shielding object exists on the air conditioner outdoor unit of the first image, the position of the shielding object and the area of the shielding object are determined, so that the defrosting mode of the air conditioner is determined according to the position of the shielding object and the area of the shielding object. With the adoption of the scheme, after the frosting of the air conditioner outdoor unit is determined, the air conditioner outdoor unit is defrosted according to the frosting condition of the air conditioner, so that a more accurate defrosting mode of the air conditioner is provided for a user. The application also discloses a controlling means and air conditioner for the air conditioner defrosting.
Description
Technical Field
The application relates to the technical field of household appliance control, in particular to a control method and device for defrosting of an air conditioner and the air conditioner.
Background
When outdoor ambient temperature is lower, in order to improve indoor temperature, the air conditioner usually operates in a heating mode, and at the moment, the outdoor unit frosts easily due to the lower ambient temperature, and after frosting, the outdoor unit is isolated from the outside, so that the heat exchanger cannot realize heat exchange with the outside, and further the heating effect of the indoor unit is poor.
The existing air conditioner defrosting process is based on outdoor environment temperature and condenser outlet temperature to carry out defrosting regulation and judgment, so that the phenomenon of misjudgment of outdoor unit frosting occurs when the outdoor temperature is low, and a defrosting mode is started when the outdoor unit is not frosted, so that large fluctuation of the indoor temperature is caused. Therefore, it is an urgent problem to solve how to defrost an outdoor unit after accurately determining that the outdoor unit is frosted.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a control method and device for defrosting of an air conditioner and the air conditioner, so as to provide a more accurate defrosting mode of the air conditioner.
In some embodiments, the method comprises: collecting a first image of an outdoor unit of an air conditioner; if the shielding object exists on the air conditioner outdoor unit extracted from the first image, determining the position and the area of the shielding object; and determining the defrosting mode of the air conditioner according to the position of the shielding object and the area of the shielding object, and controlling the air conditioner to defrost in the defrosting mode.
In some embodiments, the method comprises: dispose electric heating module on air condensing units's the chassis, according to the position of shelter and the area of shelter, confirm the defrosting mode of air conditioner, include: if the position of the shielding object is on a chassis of the outdoor unit, determining the area of the chassis in the first image; determining a first area ratio of the area of the shelter to the area of the chassis; and determining a target gear of the electric heating module corresponding to the first area ratio, and determining the defrosting mode of the air conditioner as controlling the electric heating module to defrost at the target gear.
In some embodiments, the method comprises: collecting a second image of the air conditioner outdoor unit after the electric heating module operates for a preset time; and if no shielding object exists on the chassis of the air conditioner outdoor unit, stopping running the electric heating module.
In some embodiments, the method comprises: if the position of the shielding object is located on a condenser of the outdoor unit, determining the area of the condenser in the first image; determining a second area proportion of the area of the shelter to the area of the condenser; and determining the defrosting time of the air conditioner according to the second area ratio, and determining the defrosting mode of the air conditioner as the defrosting mode of the air conditioner in the defrosting time.
In some embodiments, the method comprises: extracting image features of the shielding object from the first image; and when the image characteristics of the shielding object are matched with the preset image characteristics, determining the defrosting mode of the air conditioner according to the position of the shielding object and the area of the shielding object.
In some embodiments, the method comprises: if the thickness acquisition module is arranged on the air conditioner outdoor unit, after the defrosting mode of the air conditioner is determined, the thickness of the shielding object is extracted from the first image; and adjusting the defrosting mode according to the thickness of the shielding object.
In some embodiments, the method comprises: and acquiring the indoor temperature variation of the air conditioner, and controlling the air conditioner to stop defrosting when the indoor temperature variation exceeds the preset temperature variation.
In some embodiments, the apparatus comprises: the system comprises a collecting module, a processing module and a display module, wherein the collecting module is configured to collect a first image of an outdoor unit of the air conditioner; the determining module is configured to determine the position of the shielding object and the area of the shielding object when the shielding object exists on the air conditioner outdoor unit in the first image; and the control module is configured to determine the defrosting mode of the air conditioner according to the position of the shelter and the area of the shelter and control the air conditioner to defrost in the defrosting mode.
In some embodiments, the apparatus comprises: a processor and a memory storing program instructions, the processor being configured to, upon execution of the program instructions, perform the aforementioned control method for air conditioner defrost.
In some embodiments, the air conditioner includes: the control device for defrosting of the air conditioner is disclosed.
The control method and device for defrosting of the air conditioner and the air conditioner provided by the embodiment of the disclosure can achieve the following technical effects:
in the scheme, the first image of the air conditioner outdoor unit is collected, and when the shielding object exists on the air conditioner outdoor unit of the first image, the position of the shielding object and the area of the shielding object are determined, so that the defrosting mode of the air conditioner is determined according to the position of the shielding object and the area of the shielding object. With the adoption of the scheme, after the frosting of the air conditioner outdoor unit is determined, the air conditioner outdoor unit is defrosted according to the frosting condition of the air conditioner, so that a more accurate defrosting mode of the air conditioner is provided for a user.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a control method for defrosting an air conditioner according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a control device for defrosting an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a control device for defrosting an air conditioner according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
In practical application, a first image of the air conditioner outdoor unit can be collected, and if a shielding object is extracted from the first image, the position of the shielding object is determined to be located on a chassis of the air conditioner outdoor unit, and the area of the shielding object is 5 square centimeters. And when the color of the shade is white and the shape of the shade is scaly, the shade is determined to be frost. And extracting the area of the chassis as 20 square centimeters from the first image, determining that the first area ratio is 1/4, and determining that the corresponding defrosting mode is to control the electric heating module to defrost in a middle gear. And acquiring a second image of the air conditioner after the electric heating module operates for a period of time, and stopping operating the electric heating module if no shielding object exists in the second image.
Fig. 1 is a schematic diagram of a control method for defrosting an air conditioner according to an embodiment of the present disclosure, and in conjunction with fig. 1, the embodiment of the present disclosure provides a control method for defrosting an air conditioner, including:
and S11, acquiring a first image of the air conditioner outdoor unit.
S12, if the obstruction exists on the outdoor unit of the air conditioner is extracted from the first image, the position of the obstruction and the area of the obstruction are determined.
And S13, determining the defrosting mode of the air conditioner according to the position of the shielding object and the area of the shielding object, and controlling the air conditioner to defrost in the defrosting mode.
In step 11, a first image of the outdoor unit of the air conditioner may be collected.
In this scheme, an image capturing device may be configured to capture a first image of the outdoor unit of the air conditioner. Wherein, the image acquisition device can be a camera. Specifically, the image capturing device may be disposed on the outdoor unit of the air conditioner, or may be disposed at any position where the image information of the chassis and the condenser of the outdoor unit can be captured. In the scheme, the image acquisition device can be used for acquiring the real-time image, and the first image of the outdoor unit of the air conditioner can also be acquired when the outdoor temperature is lower and reaches a preset value. According to the scheme, the first image of the air conditioner outdoor unit is accurately acquired while image acquisition resources are saved.
In step 12, when the obstruction exists in the outdoor unit of the air conditioner, the position of the obstruction and the area of the obstruction are determined.
In the scheme, the initial image information of the air conditioner outdoor unit can be prestored. And comparing the acquired first image with the initial image information, and determining the position and the area of the shelter when the shelter exists on the air conditioner outdoor unit extracted from the first image. The position of the shielding object can be positioned on the chassis of the air conditioner outdoor unit and can be positioned on the condenser of the air conditioner outdoor unit. According to the scheme, effective data information can be extracted according to the first image, and whether the frosting phenomenon exists on the surface of the air conditioner outdoor unit or not can be determined.
In step 13, the defrosting mode of the air conditioner may be determined according to the position of the blocking object and the area of the blocking object, and the air conditioner may be controlled to defrost in the defrosting mode.
In the scheme, the first image of the air conditioner outdoor unit is collected, and when the shielding object exists on the air conditioner outdoor unit of the first image, the position of the shielding object and the area of the shielding object are determined, so that the defrosting mode of the air conditioner is determined according to the position of the shielding object and the area of the shielding object.
Optionally, in order to determine a defrosting mode of the air conditioner, in the present embodiment, an electric heating module is disposed on a chassis of the outdoor unit of the air conditioner, and if the position of the blocking object is located on the chassis of the outdoor unit, the area of the chassis is determined in the first image; determining a first area ratio of the area of the shelter to the area of the chassis; and determining a target gear of the electric heating module corresponding to the first area ratio, and determining the defrosting mode of the air conditioner as controlling the electric heating module to defrost at the target gear.
In the technical solution provided by the embodiment of the present disclosure, if the position of the blocking object is located on the chassis of the outdoor unit, the area of the chassis in the first image can be determined. A first area fraction of the area of the covering to the area of the chassis is determined. And determining a target gear of the electric heating module according to the corresponding relation between the pre-stored first area ratio and the target gear. In this embodiment, the first area ratio D1The corresponding relation with the target gear can be when 0 < D1When the gear is less than or equal to 1/6, the target gear of the electric heating module is a low gear, and when 1/6 < D1When the content is less than or equal to 1/3,the target gear of the electric heating module is a middle gear; when 1/3 < D11/2 is not more than, the target gear of the electric heating module is a middle-high gear; when 1/2 < D1The target gear of the electric heating module is not more than 1, and the target gear of the electric heating module is a high gear. The gear of the electric heating module corresponds to the operating power of the electric heating module, and if the target gear of the electric heating module is a high gear, the electric heating module is controlled to operate at high power. For example, if the covering is located on the chassis and the area of the covering in the first image is 5 square centimeters and the area of the chassis is 25 square centimeters, then the first area ratio is determined to be 1/5 and based on the first area ratio D1And determining that the target gear of the electric heating module is a middle gear according to the corresponding relation with the target gear, and determining that the defrosting mode of the air conditioner is to control the electric heating module to operate in the middle gear. According to the scheme, corresponding defrosting modes can be provided for the condition that shelters with different areas exist on the chassis.
Optionally, in order to control the air conditioner to stop defrosting when there is no frost on the chassis, in the present scheme, after the electric heating module operates for a preset time period, a second image of the air conditioner outdoor unit is acquired, and if there is no shielding object on the chassis of the air conditioner outdoor unit, the electric heating module stops operating.
In the scheme, after the electric heating module is controlled to operate at the target gear for a period of time, the second image of the air conditioner outdoor unit can be acquired through the image acquisition device, the second image is compared with the first image, no shielding object exists on a chassis of the air conditioner outdoor unit, and the electric heating module stops operating. With this scheme, can be under the frostless condition on the off-premises station chassis, the stop operation electrical heating module to avoid the continuous operation electrical heating module to lead to chassis surface temperature too high, influence the off-premises station use.
Optionally, in order to determine a defrosting mode of the air conditioner, in this embodiment, if the position of the blocking object is located on a condenser of the outdoor unit, the area of the condenser is determined in the first image; determining a second area proportion of the area of the shelter to the area of the condenser; and determining the defrosting time of the air conditioner according to the second area ratio, and determining the defrosting mode of the air conditioner as the defrosting mode of the air conditioner in the defrosting time.
In the technical solution provided by the embodiment of the present disclosure, if the position of the shielding object is located on the condenser of the outdoor unit, the entire area of the condenser in the first image may be determined. A second area fraction of the area of the shroud to the total area of the condenser is determined. And determining the defrosting time of the air conditioner according to the corresponding relation between the pre-stored second area ratio and the defrosting time. In this embodiment, the second area ratio D2The correspondence with the defrosting time period may be when 0 < D2When the defrosting time is less than or equal to 1/6, the defrosting time is 1/6 of the preset defrosting time, and when 1/6 is less than D2When the defrosting time is less than or equal to 1/3, the defrosting time is 1/3 of the preset defrosting time, when 1/3 is greater than D2 and is less than or equal to 1/2, the defrosting time is 1/2 of the preset defrosting time, and when 1/2 is greater than D2 and is less than or equal to 1, the defrosting time is the preset defrosting time. The preset defrosting time duration can be set in advance according to the outdoor environment temperature, and the lower the outdoor environment temperature is, the longer the preset defrosting time duration is. For example, if the preset defrosting time is 12 minutes, the area of the shielding object in the first image is 5 square centimeters, and the whole area of the condenser is 30 square centimeters, the second area ratio is determined to be 1/6, the defrosting time of the air conditioner is determined to be 2 minutes according to the corresponding relationship between the pre-stored second area ratio and the defrosting time, and the defrosting mode of the air conditioner is determined to be the defrosting mode for controlling the air conditioner to operate within two minutes. According to the scheme, corresponding defrosting modes can be provided for the condition that the shelters with different areas exist on the condenser of the outdoor unit.
Optionally, in order to determine that the obstruction extracted from the first image is frost, in this scheme, image features of the obstruction are extracted from the first image; and when the image characteristics of the shielding object are matched with the preset image characteristics, determining the defrosting mode of the air conditioner according to the position of the shielding object and the area of the shielding object.
In this embodiment, matching may mean that the image feature is the same as the preset image feature, and there may be a small error. Specifically, the image characteristics of the shade are the color of the shade and the shape of the shade. In the technical scheme provided by the embodiment of the disclosure, the color of the preset shade is white, and the shape of the preset shade is scaly, pinnate or fanlike. For example, if the image feature of the first image from which the blocking object is extracted is white and feathered, the blocking object is determined to be frost. By the scheme, the situation that the surface of the outdoor unit is mistakenly frosted due to the dirt on the surface of the outdoor unit is avoided, and the frosted state of the outdoor unit of the air conditioner is accurately acquired so as to defrost the air conditioner to different degrees.
Optionally, if a thickness acquisition module is configured on the air conditioner outdoor unit, after the defrosting mode of the air conditioner is determined, the thickness of the shielding object is extracted from the first image; and adjusting the defrosting mode according to the thickness of the shielding object.
In the scheme, after the position of the shielding object is determined, the thickness of the shielding object can be determined through the thickness acquisition module. Wherein, the thickness acquisition module can be a scale. Furthermore, the defrosting mode of the air conditioner is adjusted according to the thickness of the shielding object. If the shielding object is positioned on the chassis, the larger the thickness of the shielding object is, the higher the gear of the electric heating module is. If the shielding object is positioned on the condenser of the outdoor unit, the larger the thickness of the shielding object is, the longer the defrosting time is. With this scheme, can control the air conditioner defrosting according to sheltering from thing area and thickness simultaneously, promote air conditioner defrosting efficiency, guarantee the air conditioner defrosting effect.
Optionally, in order to avoid discomfort of a user caused by a low indoor temperature in the defrosting process, in the scheme, the indoor temperature variation of the air conditioner can be obtained; and controlling the air conditioner to stop defrosting when the indoor temperature variation exceeds the preset temperature variation.
In the scheme, after the air conditioner operates in the defrosting mode, the indoor temperature is reduced, and after a period of time, if the indoor temperature is too low, discomfort of a user is easily caused. The indoor temperature variation amount needs to be preset to control the indoor temperature variation. For example, the indoor temperature variation can be set to 3 ℃, when the indoor environment monitoring device monitors that the indoor temperature variation exceeds the indoor temperature 3 ℃ when defrosting starts in the defrosting process, defrosting operation is stopped, the air conditioner operation heating mode is continuously controlled, and defrosting is continuously performed when the indoor temperature is recovered to the initial temperature before defrosting.
Referring to fig. 2, an embodiment of the present disclosure provides a control device for defrosting an air conditioner, which includes an acquisition module 21, a determination module 22, and a control module 23. The acquisition module 21 is configured to acquire a first image of the air conditioner outdoor unit; the determining module 22 is configured to determine a position of the blocking object and an area of the blocking object in the first image if the blocking object exists on the outdoor unit of the air conditioner and is extracted from the first image; the control module 23 is configured to determine a defrosting mode of the air conditioner according to the position of the barrier and the area of the barrier, and control the air conditioner to defrost in the defrosting mode.
By adopting the control device for defrosting the air conditioner, the first image of the air conditioner outdoor unit is collected, and when the shielding object exists on the air conditioner outdoor unit of the first image, the position of the shielding object and the area of the shielding object are determined, so that the defrosting mode of the air conditioner is determined according to the position of the shielding object and the area of the shielding object.
As shown in fig. 3, an embodiment of the present disclosure provides a control device for defrosting an air conditioner, which includes a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to execute the control method for defrosting an air conditioner of the above-described embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing, i.e., implements the method for … in the above embodiments, by executing program instructions/modules stored in the memory 101.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the control device for defrosting of the air conditioner.
The embodiment of the disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the control method for defrosting an air conditioner.
An embodiment of the present disclosure provides a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to execute the above control method for defrosting an air conditioner.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A control method for defrosting of an air conditioner is characterized by comprising the following steps:
collecting a first image of an outdoor unit of an air conditioner;
if a shelter exists on the air conditioner outdoor unit extracted from the first image, determining the position of the shelter and the area of the shelter;
and determining the defrosting mode of the air conditioner according to the position of the shelter and the area of the shelter, and controlling the air conditioner to defrost in the defrosting mode.
2. The method of claim 1, wherein an electric heating module is disposed on a base plate of the outdoor unit, and the determining of the defrosting mode of the air conditioner according to the position of the blocking object and the area of the blocking object comprises:
if the position of the shielding object is located on a chassis of the outdoor unit, determining the area of the chassis in the first image;
determining a first area proportion of the area of the shelter to the area of the chassis;
and determining a target gear of the electric heating module corresponding to the first area ratio, and determining the defrosting mode of the air conditioner as controlling the electric heating module to defrost in the target gear.
3. The method of claim 2, further comprising:
collecting a second image of the air conditioner outdoor unit after the electric heating module operates for a preset time;
and if no shielding object exists on the chassis of the air conditioner outdoor unit, stopping running the electric heating module.
4. The method of claim 1, wherein determining the defrosting mode of the air conditioner according to the position of the shade and the area of the shade comprises:
if the position of the shielding object is located on a condenser of the outdoor unit, determining the area of the condenser in the first image;
determining a second area fraction of an area of the shroud to an area of the condenser;
and determining the defrosting time of the air conditioner according to the second area ratio, and determining the defrosting mode of the air conditioner as the defrosting mode of the air conditioner in the defrosting time.
5. The method of claim 1, further comprising:
extracting image features of the shielding object from the first image;
and when the image characteristics of the shielding object are matched with the preset image characteristics, determining the defrosting mode of the air conditioner according to the position of the shielding object and the area of the shielding object.
6. The method of any one of claims 2 or 4, wherein if a thickness acquisition module is configured on the outdoor unit of the air conditioner, after determining the defrosting mode of the air conditioner, the method further comprises:
extracting the thickness of the shielding object from the first image;
and adjusting the defrosting mode according to the thickness of the shelter.
7. The method of claim 1, further comprising:
acquiring indoor temperature variation of the air conditioner;
and when the indoor temperature variation exceeds the preset temperature variation, controlling the air conditioner to stop defrosting.
8. A control apparatus for defrosting an air conditioner, comprising:
the acquisition module is configured to acquire a first image of the air conditioner outdoor unit;
the determining module is configured to determine the position of a shielding object and the area of the shielding object in the first image if the shielding object exists on the outdoor unit of the air conditioner and is extracted from the first image;
and the control module is configured to determine the defrosting mode of the air conditioner according to the position of the shelter and the area of the shelter and control the air conditioner to defrost in the defrosting mode.
9. A control apparatus for air conditioner defrosting comprising a processor and a memory storing program instructions, characterized in that the processor is configured to execute the control method for air conditioner defrosting according to any one of claims 1 to 7 when executing the program instructions.
10. An air conditioner characterized by comprising the control device for defrosting of an air conditioner according to claim 8 or 9.
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| TWI835512B (en) | 2023-01-06 | 2024-03-11 | 財團法人工業技術研究院 | Defrosting control system and method |
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