CN114294786A - Optimization method, system, medium and terminal for defrosting entry conditions of air conditioner - Google Patents
Optimization method, system, medium and terminal for defrosting entry conditions of air conditioner Download PDFInfo
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- CN114294786A CN114294786A CN202111671641.6A CN202111671641A CN114294786A CN 114294786 A CN114294786 A CN 114294786A CN 202111671641 A CN202111671641 A CN 202111671641A CN 114294786 A CN114294786 A CN 114294786A
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Abstract
The invention provides a method, a system, a medium and a terminal for optimizing defrosting entry conditions of an air conditioner; the method comprises the following steps: acquiring an extended air conditioner defrosting entry condition set; acquiring the outdoor environment temperature and the outdoor coil temperature; the method comprises the steps of acquiring the satisfied accumulated time corresponding to each satisfied condition in an extended air conditioner defrosting entry condition set in the heating operation process of the air conditioner; acquiring defrosting operation time; adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time to obtain the optimized air conditioner defrosting entry condition; the invention provides a method for optimizing air conditioner defrosting entry conditions, which is characterized in that the optimized air conditioner defrosting entry conditions are obtained by adjusting the original air conditioner defrosting entry conditions according to the outdoor environment temperature and the outdoor coil temperature, so that the optimized air conditioner defrosting entry conditions can meet the air conditioner defrosting requirements, and the air conditioner defrosting effect is further ensured.
Description
Technical Field
The invention belongs to the technical field of air conditioner defrosting, and particularly relates to an optimization method, a system, a medium and a terminal for air conditioner defrosting entry conditions.
Background
When an air conditioning system is in heating operation in winter, if the outdoor evaporation temperature is below-3 ℃ approximately, the surface of the heat transfer fin is below 0 ℃ (the temperature difference between the evaporation temperature and the surface of the fin changes according to the air heat transfer rate, fin contact resistance and refrigerant heat transfer rate), when the surface of the fin is below 0 ℃, water vapor in the air can be frozen and attached to the surface of the fin in the form of frost, the frost can be continuously accumulated and gradually distributed on the surface of the whole outdoor fin, and then gaps between adjacent fins are blocked, so that the heat exchange air quantity of the fin is reduced, the air heat transfer rate is reduced, and the heating capacity is reduced.
In order to recover the heating capacity, defrosting operation is required, but because the frosting condition of the outdoor fins is influenced by multiple factors such as outdoor humidity, outdoor environment temperature, refrigerant flow control, air quantity, operation frequency of the variable frequency compressor and the like, an air conditioner electric control system cannot quantitatively detect the frosting quantity, the phenomena of misjudgment and missed judgment of the frosting condition exist, and if defrosting is not carried out in time, the heating operation effect of the air conditioner system is influenced.
At present, various air conditioner manufacturers summarize conditions that various air conditioning systems need to be defrosted, but because air conditioner user sensors measure differences of temperature difference, environmental conditions and the like, the conditions cannot be completely suitable for all the air conditioning systems, especially when the air conditioning systems are applied to different scenes, conditions that the air conditioning systems enter defrosting are different, if a layer of unchanged judgment conditions are used all the time, the defrosting effect of the air conditioning systems is not good undoubtedly, and further, adverse effects are brought to heating operation of the air conditioning systems.
Therefore, how to provide a scheme capable of continuously adjusting and optimizing the condition for the air conditioning system to enter the defrosting mode according to the real-time environment on site becomes a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a method, a system, a medium and a terminal for optimizing air conditioner defrosting entry conditions, which can adjust the air conditioner defrosting entry conditions according to the outdoor environment temperature and the outdoor coil temperature to continuously optimize the air conditioner defrosting entry conditions.
To achieve the above and other related objects, the present invention provides a method for optimizing a defrost entry condition of an air conditioner, comprising the steps of: expanding the original air conditioner defrosting entry conditions to obtain an expanded air conditioner defrosting entry condition set; the original air conditioner defrosting entry condition comprises at least one target defrosting entry condition; the extended air conditioner defrosting entry condition set comprises the target defrosting entry condition and an extended defrosting entry condition corresponding to the target defrosting entry condition; acquiring the outdoor environment temperature and the outdoor coil temperature; when the outdoor environment temperature and the outdoor coil temperature meet the original air conditioner defrosting entering condition, controlling to start to execute defrosting operation; acquiring the accumulated time which is met and corresponds to each met condition in the extended air conditioner defrosting entry condition set in the air conditioner heating operation process based on the outdoor environment temperature and the outdoor coil temperature; when the temperature of the outdoor coil meets the condition of quitting the defrosting of the air conditioner, controlling to stop executing the defrosting operation and acquiring the defrosting operation time; and adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time to obtain an optimized air conditioner defrosting entry condition.
In one embodiment of the present invention, the extended defrost entry condition includes: a first defrost entry condition and a second defrost entry condition; the step of expanding the original air conditioner defrosting entry conditions to obtain an expanded air conditioner defrosting entry condition set comprises the following steps: increasing a target value in the target defrosting entry condition to obtain the first defrosting entry condition; reducing the target value to obtain a second defrosting entry condition; the target defrost entry condition, the first defrost entry condition, and the second defrost entry condition have priority in order.
In an embodiment of the present invention, the target defrost entry condition has a time parameter and a temperature parameter; and taking the value corresponding to the temperature parameter as the target value.
In an embodiment of the present invention, the adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time includes any one or a combination of the following conditions: corresponding to the target defrosting entry condition, based on the defrosting operation time and the accumulated time, adjusting the priority of the target defrosting entry condition, the priority of the first defrosting entry condition and the priority of the second defrosting entry condition, and selecting the condition with the highest priority from the target defrosting entry condition, the priority of the first defrosting entry condition and the priority of the second defrosting entry condition after the priority is adjusted to replace the target defrosting entry condition; corresponding to the target defrosting entry condition, increasing a numerical value corresponding to a time parameter in the target defrosting entry condition; and corresponding to the target defrosting entry condition, reducing a numerical value corresponding to the time parameter in the target defrosting entry condition.
In an embodiment of the present invention, the adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time includes the following steps: and adjusting the original air conditioner defrosting entering conditions according to a preset adjusting rule based on the defrosting operation time and the accumulated time.
In an embodiment of the present invention, the method further includes the following steps: and taking the optimized air conditioner defrosting entry condition as an original air conditioner defrosting entry condition of the next defrosting operation.
In an embodiment of the present invention, the original air conditioner defrosting entry condition includes any one or more of the following target defrosting entry conditions: the temperature of the outdoor coil is not more than a first preset temperature, and the accumulated heating running time of the air conditioner is not less than a first preset time; the temperature of the outdoor coil is not more than a second preset temperature and lasts for a second preset time; the second preset temperature is lower than the first preset temperature; the difference value of the outdoor environment temperature minus the outdoor coil temperature is greater than a third preset temperature and lasts for a third preset time.
The invention provides an optimizing system of air conditioner defrosting entering condition, comprising: the device comprises a first acquisition module, a second acquisition module, a first control module, a third acquisition module, a second control module and a fourth acquisition module; the first acquisition module is used for expanding the original air conditioner defrosting entry conditions to acquire an expanded air conditioner defrosting entry condition set; the original air conditioner defrosting entry condition comprises at least one target defrosting entry condition; the extended air conditioner defrosting entry condition set comprises the target defrosting entry condition and an extended defrosting entry condition corresponding to the target defrosting entry condition; the second acquisition module is used for acquiring the outdoor environment temperature and the outdoor coil temperature; the first control module is used for controlling to start to execute defrosting operation when the outdoor environment temperature and the outdoor coil temperature meet the original air conditioner defrosting entering condition; the third obtaining module is configured to obtain, based on the outdoor environment temperature and the outdoor coil temperature, a satisfied accumulated time corresponding to each satisfied condition in the extended air conditioner defrosting entry condition set in a heating operation process of an air conditioner; the second control module is used for controlling to stop executing the defrosting operation and acquiring the defrosting operation time when the temperature of the outdoor coil meets the air conditioner defrosting exit condition; the fourth obtaining module is used for adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time, and obtaining the optimized air conditioner defrosting entry condition.
The present invention provides a storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described method of optimizing air conditioner defrost entry conditions.
The present invention provides a terminal, including: a processor and a memory; the memory is used for storing a computer program; the processor is used for executing the computer program stored in the memory so as to enable the terminal to execute the optimization method of the air conditioner defrosting entry condition.
As described above, the method, system, medium and terminal for optimizing the defrosting entry condition of the air conditioner according to the present invention have the following advantages:
compared with the prior art, the invention provides a method for optimizing the defrosting entry condition of the air conditioner, the optimized defrosting entry condition of the air conditioner is obtained by adjusting the original defrosting entry condition of the air conditioner according to the outdoor environment temperature and the outdoor coil temperature, so that the optimized defrosting entry condition of the air conditioner can meet the defrosting requirement of the air conditioner, and the defrosting effect of the air conditioner is further ensured.
Drawings
Fig. 1 is a schematic structural diagram of a terminal according to an embodiment of the invention.
Fig. 2 is a flowchart illustrating an optimization method of defrosting entry conditions of an air conditioner according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an optimization system for defrosting entry conditions of an air conditioner according to an embodiment of the present invention.
Description of the symbols
1 terminal
11 processing unit
12 memory
121 random access memory
122 cache memory
123 storage system
124 program/utility
1241 program module
13 bus
14 input/output interface
15 network adapter
2 external device
3 display
31 first acquisition module
32 second acquisition module
33 first control module
34 third acquisition module
35 second control Module
36 fourth acquisition Module
S1-S6
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Compared with the prior art, the method, the system, the medium and the terminal for optimizing the air conditioner defrosting entry condition provided by the invention have the advantages that the optimized air conditioner defrosting entry condition is obtained by adjusting the original air conditioner defrosting entry condition according to the outdoor environment temperature and the outdoor coil temperature, so that the optimized air conditioner defrosting entry condition can meet the air conditioner defrosting requirement, and the air conditioner defrosting effect is further ensured.
The storage medium of the present invention stores thereon a computer program that, when executed by a processor, implements the method of optimizing air conditioner defrost entry conditions described below. The storage medium includes: a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, a usb disk, a Memory card, or an optical disk, which can store program codes.
Any combination of one or more storage media may be employed. The storage medium may be a computer-readable signal medium or a computer-readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a RAM, a ROM, an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The present invention is described below with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable medium that can direct a computer, other programmable data processing apparatus, or other devices to function in a particular manner, such that the instructions stored in the computer-readable medium produce an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
The terminal of the invention comprises a processor and a memory.
The memory is used for storing a computer program; preferably, the memory comprises: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
The processor is connected with the memory and is used for executing the computer program stored in the memory so as to enable the terminal to execute the following optimization method of the defrosting entry condition of the air conditioner.
Preferably, the Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
Fig. 1 shows a block diagram of an exemplary terminal 1 suitable for implementing an embodiment of the invention.
The terminal 1 shown in fig. 1 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiment of the present invention.
As shown in fig. 1, the terminal 1 is in the form of a general purpose computing device. The components of the terminal 1 may include, but are not limited to: one or more processors or processing units 11, a memory 12, and a bus 13 that couples various system components including the memory 12 and the processing unit 11.
The terminal 1 typically includes a variety of computer system readable media. These media may be any available media that can be accessed by terminal 1 and includes both volatile and nonvolatile media, removable and non-removable media.
Program/utility 124 having a set (at least one) of program modules 1241 may be stored in, for example, memory 12, such program modules 1241 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 1241 generally perform the functions and/or methodologies of embodiments of the invention as described herein.
The terminal 1 may also communicate with one or more external devices 2 (e.g., keyboard, pointing device, display 3, etc.), one or more devices that enable a user to interact with the terminal 1, and/or any device (e.g., network card, modem, etc.) that enables the terminal 1 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 14. Also, the terminal 1 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the internet) through the network adapter 15. As shown in fig. 1, the network adapter 15 communicates with the other modules of the terminal 1 via the bus 13. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the terminal 1, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
As shown in fig. 2, in an embodiment, the method for optimizing the defrosting entry condition of the air conditioner of the present invention includes the following steps:
and step S1, expanding the original air conditioner defrosting entry conditions to obtain an expanded air conditioner defrosting entry condition set.
It should be noted that the original air conditioner defrost entry condition includes at least one target defrost entry condition.
In one embodiment, the original air conditioner defrost entry conditions include, but are not limited to, any one or a combination of target defrost entry conditions:
(11) the temperature of the outdoor coil is not more than a first preset temperature, and the accumulated heating running time of the air conditioner is not less than a first preset time.
(12) The temperature of the outdoor coil pipe is not more than a second preset temperature and lasts for a second preset time.
It should be noted that the second preset temperature is lower than the first preset temperature.
(13) The difference value of the outdoor environment temperature minus the outdoor coil temperature is greater than a third preset temperature and lasts for a third preset time.
It should be noted that, the specific number of the first preset temperature, the second preset temperature, the third preset temperature, the first preset time, the second preset time, and the third preset time in the target defrosting entry condition is not a condition for limiting the present invention, and in practical application, the number of the first preset temperature, the second preset temperature, the third preset temperature, the first preset time, the second preset time, and the third preset time may be set according to a specific application scenario.
Further, in practical applications, the parameters related to the air conditioner defrosting entry condition are not limited to the outdoor coil temperature and the outdoor environment temperature in the above conditions (11) to (13), and all the influencing factors influencing the air conditioner defrosting operation can be used as the original air conditioner defrosting entry condition.
It should be noted that the extended air conditioner defrosting entry condition set includes the target defrosting entry condition and an extended defrosting entry condition corresponding to the target defrosting entry condition.
In one embodiment, the extended defrost entry condition includes a first defrost entry condition and a second defrost entry condition.
In an embodiment, the expanding the original air conditioner defrosting entry condition to obtain the expanded air conditioner defrosting entry condition set includes the following steps:
and step S11, increasing a target value in the target defrost entry conditions, and acquiring the first defrost entry conditions.
And step S12, reducing the target value and acquiring the second defrosting entrance condition.
It should be noted that, in the above steps S11 and S12, the target value in the target defrosting entry condition is adjusted up and down respectively, which is not a condition for limiting the present invention, and in practical application, the target value may be adjusted up or down according to a preset expansion rule to obtain the corresponding first defrosting entry condition and the second defrosting entry condition respectively.
It should be noted that the target defrost entry condition, the first defrost entry condition, and the second defrost entry condition have priority.
In one embodiment, the priority of the first and second defrost entry conditions generated after the expansion of step S1 is lower than the priority of the target defrost entry condition.
In one embodiment, the target defrost entry condition has a time parameter and a temperature parameter.
In an embodiment, a value corresponding to the temperature parameter is taken as the target value.
Specifically, in step S11 and step S12, the values corresponding to the temperature parameters in the target defrost entry conditions are respectively turned up and down.
And step S2, acquiring the outdoor environment temperature and the outdoor coil temperature.
It should be noted that the method of acquiring the outdoor ambient temperature and the outdoor coil temperature in step S2 is not a limitation of the present invention.
In one embodiment, the outdoor ambient temperature and the outdoor coil temperature are detected in real time by temperature sensors.
And step S3, when the outdoor environment temperature and the outdoor coil temperature meet the original air conditioner defrosting entering condition, controlling to start to execute defrosting operation.
Specifically, when the outdoor environment temperature and the outdoor coil temperature meet the original air conditioner defrosting entry condition, the defrosting operation equipment is controlled to execute defrosting operation.
In one embodiment, the defrosting operation device changes the movement direction of the refrigerant by switching the four-way valve, so that the outdoor coil pipe generates heat to melt frosting on the surface of the outdoor fin.
Step S4, acquiring, in the air conditioner heating operation process, the accumulated time that is met corresponding to each met condition in the extended air conditioner defrosting entry condition set based on the outdoor environment temperature and the outdoor coil temperature.
It should be noted that the accumulated time refers to a time during which a condition that is satisfied in the extended air conditioner defrost entry condition set is maintained from the start of being satisfied to the start of performing the defrost operation in step S3 described above.
Further, for a target defrost entry condition, the first defrost entry condition and the second defrost entry condition obtained after the expansion of step S1, in practical applications, it is not always necessary that all three conditions are satisfied, and it may happen that only one or two of the three conditions are satisfied.
And step S5, when the temperature of the outdoor coil meets the air conditioner defrosting exit condition, controlling to stop executing the defrosting operation and obtaining the defrosting operation time.
It should be noted that the air conditioner defrosting exit condition in step S5 is not a condition for limiting the present invention, and therefore, the detailed description thereof is omitted here.
In step S3, the defrosting operation time is a time corresponding to the start of the defrosting operation until step S5 stops the defrosting operation.
And step S6, adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time, and obtaining the optimized air conditioner defrosting entry condition.
In an embodiment, the adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time includes, but is not limited to, any one or a combination of the following:
(61) and corresponding to the target defrosting entry condition, based on the defrosting operation time and the accumulated time, adjusting the priority of the target defrosting entry condition, the priority of the first defrosting entry condition and the priority of the second defrosting entry condition, and selecting the condition with the highest priority from the target defrosting entry condition, the priority of the first defrosting entry condition and the priority of the second defrosting entry condition after the priority is adjusted to replace the target defrosting entry condition.
Specifically, in this case (61), the target defrost entry condition is replaced with a first defrost entry condition or a second defrost entry condition having a higher priority than the target defrost entry condition, according to the determined priority.
(62) And corresponding to one target defrosting entry condition, increasing the value corresponding to the time parameter in the target defrosting entry condition.
(63) And corresponding to the target defrosting entry condition, reducing a numerical value corresponding to the time parameter in the target defrosting entry condition.
In this case (62) and this case (63), the number of times the time parameter in the target defrosting entry condition is adjusted up or down, respectively, is not a condition for limiting the present invention, and in practical application, may be set according to a specific application scenario.
Further, which of the above-described cases (61) to (63) is specifically selected to adjust the original air conditioner defrosting entry condition is determined according to the defrosting operation time and the accumulated time.
In one embodiment, the adjusting the original air conditioner defrost entry condition based on the defrost operating time and the accumulated time includes the steps of: and adjusting the original air conditioner defrosting entering conditions according to a preset adjusting rule based on the defrosting operation time and the accumulated time.
Specifically, based on the defrosting operation time and the accumulated time, any one of the above-described cases (61) to (63) is selected to be performed according to a preset adjustment rule.
In one embodiment, the method further comprises the steps of: and taking the optimized air conditioner defrosting entry condition as an original air conditioner defrosting entry condition of the next defrosting operation.
It should be noted that, the optimized air conditioner defrosting entry condition obtained in the step S6 is used as the original air conditioner defrosting entry condition for the next defrosting operation, and then the steps S1 to S6 may be continuously executed to optimize the optimized air conditioner defrosting entry condition again; the step S1 to the step S6 are repeatedly executed, and finally the adaptive air conditioner defrosting entry condition can be acquired.
Further, the obtained adaptive air conditioner defrosting entry condition can be applied to mass production of air conditioning systems.
The method for optimizing the defrosting entry condition of the air conditioner according to the present invention will be further explained with reference to specific examples.
In one embodiment, the original air conditioner defrost entry conditions include three target defrost entry conditions, respectively:
1. the temperature of the outdoor coil is less than or equal to 0 ℃, and the accumulated heating running time of the air conditioner is at least 30 min;
2. the temperature of the outdoor coil pipe is less than or equal to minus 7 ℃ and lasts for 60 sec;
3. (outdoor ring temperature-outdoor coil temperature) >5 ℃ and last 60 sec.
The above conditions are required to be met to enable defrost to be entered.
The original defrosting entry conditions are expanded to obtain a first defrosting entry condition and a second defrosting entry condition corresponding to each target defrosting entry condition, which are respectively as follows:
condition 1A (first defrost entry condition): the temperature of the outdoor coil is less than or equal to 0.5 ℃, and the accumulated operation time of air conditioner heating is at least 30 min;
condition 1B (target defrost entry condition): the temperature of the outdoor coil is less than or equal to 0.0 ℃, and the accumulated operation time of air conditioner heating is at least 30 min;
condition 1C (second defrost entry condition): the temperature of the outdoor coil is less than or equal to minus 0.5 ℃, and the accumulated running time of air conditioner heating is at least 30 min;
condition 2A (first defrost entry condition): the temperature of the outdoor coil pipe is less than or equal to minus 6.5 ℃ and lasts for 60 sec;
condition 2B (target defrost entry condition): the temperature of the outdoor coil is less than or equal to minus 7.0 ℃ and lasts for 60 sec;
condition 2C (second defrost entry condition): the temperature of the outdoor coil is less than or equal to minus 7.5 ℃ and lasts for 60 sec;
condition 3A (second defrost entry condition): (outdoor ring temperature-outdoor coil temperature) >4.5 ℃ and last 60 sec;
condition 3B (target defrost entry condition): (outdoor ring temperature-outdoor coil temperature) >5 ℃ for 60 sec;
condition 3C (first defrost entry condition): (outdoor ring temperature-outdoor coil temperature) >5.5 ℃ and last 60 sec.
In the air-conditioning heating operation, each of the above conditions (1A to 3C) is determined, and the cumulative time of each satisfied condition is recorded.
Firstly, taking the original defrosting entry condition (corresponding to the conditions 1B, 2B and 3B) of the air conditioner as a defrosting entry condition, and entering defrosting operation when the three conditions are met; when the defrosting is finished and the temperature of the outdoor coil pipe meets the defrosting exit condition, the defrosting is exited; at this time, the current frosting amount is judged according to the current defrosting operation time (the time from entering the defrosting operation to exiting the defrosting operation).
The corresponding relation between the defrosting operation time and the frosting amount is obtained by manually measuring parameters such as a frosted heating amount reduction value, a frosting thickness and the like in a defrosting test stage of a laboratory prototype, comprehensively judging according to the defrosting operation time, and presetting the frosting amount data in a program.
In one embodiment, the correspondence relationship is:
the defrosting operation time is 1-2 minutes, the frosting amount is little, and the defrosting time is too early;
the defrosting operation time is 3-4 minutes, the frosting amount is less, and the defrosting time is earlier;
the defrosting operation time is 5-6 minutes, the frosting amount is proper, and the defrosting time is proper;
the defrosting operation time is 7-8 minutes, the frosting amount is more, and the defrosting time is later;
the defrosting operation time is 9-10 minutes, the frosting amount is large, and the defrosting time is too late.
After each defrosting, calculating the frosting amount according to the current defrosting operation time, and judging whether the defrosting entry condition is reasonable and whether the parameters and the priority need to be modified according to the frosting amount.
And independently performing operations such as parameter optimization, priority adjustment and the like according to the judgment of the frosting amount and the accumulated time measured corresponding to each condition (1A-3C) when defrosting is started.
In one embodiment, the adjustment is performed according to a preset adjustment rule.
The preset adjustment rule will be further explained below by taking the above target defrost entry condition 1 as an example; specifically, as shown in table 1 below, the adjustment method for the target defrost entry condition 1 (i.e., 1B) is shown.
TABLE 1
It should be noted that "the accumulated time in the condition" in table 1 is a numerical value corresponding to the time parameter in the target defrosting entry condition, which is here 30min in the target defrosting entry condition 1.
Further, the condition adjustments in table 1 can be accomplished directly according to the defrosting operation time and the accumulated time, i.e., the above-described judgment of the amount of frost formation is not required; specifically, according to the above correspondence, the frosting amount in table 1 is directly corresponded to the defrosting operation time.
It should be noted that table 1 only shows a specific adjustment method of the target defrost entry condition 1, and for specific adjustment methods of the target defrost entry condition 2 and the target defrost entry condition 3, refer to table 1, and therefore, detailed description thereof is omitted here.
Further, after multiple defrosting operations, the target defrosting entry condition in the original air conditioner defrosting entry conditions changes, and if the target defrosting entry condition in the same condition group changes, the first defrosting entry condition and the second defrosting entry condition corresponding to the target defrosting entry condition correspondingly change.
For example, if after one defrosting operation, a condition 1C with a priority higher than that of the condition 1B is used to replace the condition 1B corresponding to the target defrosting entry condition 1, after the defrosting operation, the condition 1 in the optimized air conditioner defrosting entry conditions is the condition 1B, and according to the same preset extension rule, the first defrosting entry condition and the second defrosting entry condition corresponding to the condition 1 are respectively as follows:
the accumulated heating running time (the running time is the time after the previous regulation) of the outdoor coil temperature less than or equal to 0.0 ℃;
the accumulated running time of heating (the running time is the time after the previous adjustment) when the temperature of the outdoor coil is less than or equal to-1.0 ℃.
The parameter values in table 1 are only for one embodiment, and are not intended to limit the present invention.
Furthermore, in practical application, a group of initial conditions and parameters can be set for an experimental prototype, and then, different heating working conditions are set in a laboratory, and an air-conditioning prototype is used for repeatedly carrying out heating frosting and defrosting operation experiments; specifically, firstly, a defrosting time criterion of little frosting amount, normal frosting, more frosting amount and much frosting amount is determined by observing the frosting thickness and the defrosting time of an air conditioner prototype; then, the prototype obtains an adaptive defrosting judgment initial parameter value by repeatedly carrying out heating frosting and defrosting experiments, and is applied to mass production of air-conditioning systems; the air conditioning system is applied to the client side, and defrosting judgment parameter values can be further optimized in practical application.
It should be noted that the protection scope of the method for optimizing the defrosting entry condition of the air conditioner according to the present invention is not limited to the execution sequence of the steps illustrated in the embodiment, and all the solutions implemented by adding, subtracting and replacing the steps according to the principle of the present invention are included in the protection scope of the present invention.
As shown in fig. 3, in an embodiment, the system for optimizing the defrosting entry condition of the air conditioner of the present invention includes a first obtaining module 31, a second obtaining module 32, a first control module 33, a third obtaining module 34, a second control module 35, and a fourth obtaining module 36.
The first obtaining module 31 is configured to expand an original air conditioner defrosting entry condition to obtain an expanded air conditioner defrosting entry condition set; the original air conditioner defrosting entry condition comprises at least one target defrosting entry condition; the extended air conditioner defrosting entry condition set includes the target defrosting entry condition and an extended defrosting entry condition corresponding to the target defrosting entry condition.
The second obtaining module 32 is used for obtaining the outdoor ambient temperature and the outdoor coil temperature.
The first control module 33 is configured to control to start a defrosting operation when the outdoor environment temperature and the outdoor coil temperature satisfy the original air conditioner defrosting entry condition.
The third obtaining module 34 is configured to obtain, based on the outdoor ambient temperature and the outdoor coil temperature, a satisfied accumulated time corresponding to each satisfied condition in the extended air conditioner defrosting entry condition set in the air conditioner heating operation process.
The second control module 35 is configured to control to stop executing the defrosting operation and obtain a defrosting operation time when the temperature of the outdoor coil meets an air conditioner defrosting exit condition.
The fourth obtaining module 36 is configured to adjust the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time, and obtain an optimized air conditioner defrosting entry condition.
It should be noted that the structures and principles of the first obtaining module 31, the second obtaining module 32, the first control module 33, the third obtaining module 34, the second control module 35, and the fourth obtaining module 36 correspond to the steps (step S1 to step S6) in the method for optimizing the air conditioner defrosting entry condition one by one, and therefore, the description thereof is omitted here.
It should be noted that the division of the modules of the above system is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the x module may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the system, or may be stored in a memory of the system in the form of program code, and the function of the x module may be called and executed by a processing element of the system. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a System-On-a-Chip (SOC).
It should be noted that the system for optimizing the air conditioner defrosting entry condition of the present invention can implement the method for optimizing the air conditioner defrosting entry condition of the present invention, but the implementation apparatus of the method for optimizing the air conditioner defrosting entry condition of the present invention includes, but is not limited to, the structure of the system for optimizing the air conditioner defrosting entry condition recited in the present embodiment, and all structural modifications and substitutions of the prior art made according to the principle of the present invention are included in the scope of the present invention.
In summary, compared with the prior art, the method, the system, the medium and the terminal for optimizing the air conditioner defrosting entry condition provided by the invention have the advantages that the optimized air conditioner defrosting entry condition is obtained by adjusting the original air conditioner defrosting entry condition according to the outdoor environment temperature and the outdoor coil temperature, so that the optimized air conditioner defrosting entry condition can meet the air conditioner defrosting requirement, and the air conditioner defrosting effect is further ensured; therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An optimization method for defrosting entry conditions of an air conditioner is characterized by comprising the following steps:
expanding the original air conditioner defrosting entry conditions to obtain an expanded air conditioner defrosting entry condition set; the original air conditioner defrosting entry condition comprises at least one target defrosting entry condition; the extended air conditioner defrosting entry condition set comprises the target defrosting entry condition and an extended defrosting entry condition corresponding to the target defrosting entry condition;
acquiring the outdoor environment temperature and the outdoor coil temperature;
when the outdoor environment temperature and the outdoor coil temperature meet the original air conditioner defrosting entering condition, controlling to start to execute defrosting operation;
acquiring the accumulated time which is met and corresponds to each met condition in the extended air conditioner defrosting entry condition set in the air conditioner heating operation process based on the outdoor environment temperature and the outdoor coil temperature;
when the temperature of the outdoor coil meets the condition of quitting the defrosting of the air conditioner, controlling to stop executing the defrosting operation and acquiring the defrosting operation time;
and adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time to obtain an optimized air conditioner defrosting entry condition.
2. The method for optimizing a defrost entry condition for an air conditioner of claim 1, wherein the extended defrost entry condition comprises: a first defrost entry condition and a second defrost entry condition; the step of expanding the original air conditioner defrosting entry conditions to obtain an expanded air conditioner defrosting entry condition set comprises the following steps:
increasing a target value in the target defrosting entry condition to obtain the first defrosting entry condition;
reducing the target value to obtain a second defrosting entry condition; the target defrost entry condition, the first defrost entry condition, and the second defrost entry condition have priority in order.
3. The method of optimizing an air conditioner defrost entry condition of claim 2, wherein the target defrost entry condition has a time parameter and a temperature parameter; and taking the value corresponding to the temperature parameter as the target value.
4. The method for optimizing air conditioner defrost entry conditions as recited in claim 2, wherein said adjusting said original air conditioner defrost entry conditions based on said defrost run time and said accumulated time includes any one or a combination of the following:
corresponding to the target defrosting entry condition, based on the defrosting operation time and the accumulated time, adjusting the priority of the target defrosting entry condition, the priority of the first defrosting entry condition and the priority of the second defrosting entry condition, and selecting the condition with the highest priority from the target defrosting entry condition, the priority of the first defrosting entry condition and the priority of the second defrosting entry condition after the priority is adjusted to replace the target defrosting entry condition;
corresponding to the target defrosting entry condition, increasing a numerical value corresponding to a time parameter in the target defrosting entry condition;
and corresponding to the target defrosting entry condition, reducing a numerical value corresponding to the time parameter in the target defrosting entry condition.
5. The method for optimizing air conditioner defrost entry conditions of claim 1, wherein said adjusting the original air conditioner defrost entry conditions based on the defrost run time and the accumulated time comprises the steps of: and adjusting the original air conditioner defrosting entering conditions according to a preset adjusting rule based on the defrosting operation time and the accumulated time.
6. The method for optimizing defrosting entry conditions for an air conditioner of claim 1 further comprising the steps of: and taking the optimized air conditioner defrosting entry condition as an original air conditioner defrosting entry condition of the next defrosting operation.
7. The method for optimizing air conditioner defrost entry conditions as recited in claim 1, wherein said original air conditioner defrost entry conditions include any one or a combination of target defrost entry conditions:
the temperature of the outdoor coil is not more than a first preset temperature, and the accumulated heating running time of the air conditioner is not less than a first preset time;
the temperature of the outdoor coil is not more than a second preset temperature and lasts for a second preset time; the second preset temperature is lower than the first preset temperature;
the difference value of the outdoor environment temperature minus the outdoor coil temperature is greater than a third preset temperature and lasts for a third preset time.
8. An optimization system for defrosting entry conditions of an air conditioner, comprising: the device comprises a first acquisition module, a second acquisition module, a first control module, a third acquisition module, a second control module and a fourth acquisition module;
the first acquisition module is used for expanding the original air conditioner defrosting entry conditions to acquire an expanded air conditioner defrosting entry condition set; the original air conditioner defrosting entry condition comprises at least one target defrosting entry condition; the extended air conditioner defrosting entry condition set comprises the target defrosting entry condition and an extended defrosting entry condition corresponding to the target defrosting entry condition;
the second acquisition module is used for acquiring the outdoor environment temperature and the outdoor coil temperature;
the first control module is used for controlling to start to execute defrosting operation when the outdoor environment temperature and the outdoor coil temperature meet the original air conditioner defrosting entering condition;
the third obtaining module is configured to obtain, based on the outdoor environment temperature and the outdoor coil temperature, a satisfied accumulated time corresponding to each satisfied condition in the extended air conditioner defrosting entry condition set in a heating operation process of an air conditioner;
the second control module is used for controlling to stop executing the defrosting operation and acquiring the defrosting operation time when the temperature of the outdoor coil meets the air conditioner defrosting exit condition;
the fourth obtaining module is used for adjusting the original air conditioner defrosting entry condition based on the defrosting operation time and the accumulated time, and obtaining the optimized air conditioner defrosting entry condition.
9. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of optimizing air conditioner defrost entry conditions as claimed in any one of claims 1 to 7.
10. A terminal, comprising: a processor and a memory;
the memory is used for storing a computer program;
the processor is configured to execute the computer program stored in the memory to cause the terminal to perform the method of optimizing air conditioner defrost entry conditions as recited in any one of claims 1 to 7.
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