CN110658405B - Air conditioner line loss detection method and device, air conditioner and storage medium - Google Patents
Air conditioner line loss detection method and device, air conditioner and storage medium Download PDFInfo
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- CN110658405B CN110658405B CN201910954244.6A CN201910954244A CN110658405B CN 110658405 B CN110658405 B CN 110658405B CN 201910954244 A CN201910954244 A CN 201910954244A CN 110658405 B CN110658405 B CN 110658405B
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention provides a method and a device for detecting the line loss of an air conditioner, the air conditioner and a storage medium, wherein the method for detecting the line loss of the air conditioner comprises the following steps: determining the line parameters of the air conditioner according to the model identification of the air conditioner; determining the line resistance according to the line parameters; and determining the line loss according to the effective value of the input current and the line resistance. By executing the scheme, on one hand, after the model identifications are obtained, the line parameters can be correspondingly determined according to the incidence relations between the model identifications and the line parameters of different air conditioners, so that the line loss of the air conditioners can be determined based on the line parameters, the detection requirements of the line loss in the air conditioners of different models can be met, on the other hand, after the line loss is detected, the line loss data are added on the basis of the power of the indoor unit and/or the power of the outdoor unit of the air conditioner, the accuracy of power detection of the air conditioners can be improved, and the detection error is reduced.
Description
Technical Field
The invention relates to the field of air conditioner control, in particular to a method for detecting line loss of an air conditioner, a device for detecting line loss of the air conditioner, the air conditioner and a computer readable storage medium.
Background
In the related art, in the scheme of calculating the power of the air conditioner, the influence of line loss is not considered, so that the error of the calculated power of the whole air conditioner is large, and the universality is poor.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, an object of the present invention is to provide a new method for detecting line loss of an air conditioner.
The invention also aims to provide a detection device for the line loss of the air conditioner.
Another object of the present invention is to provide an air conditioner.
Another object of the present invention is to provide a computer-readable storage medium.
In order to achieve at least one of the above objects, according to a first aspect of the present invention, a method for detecting a line loss of an air conditioner is provided, which specifically includes: determining the line parameters of the air conditioner according to the model identification of the air conditioner; determining the line resistance according to the line parameters; and determining the line loss according to the effective value of the input current and the line resistance.
In the technical scheme, the indoor unit and the outdoor unit of the air conditioner and the indoor unit and the power supply are connected through wired lines to charge the indoor unit and the outdoor unit of the air conditioner, and the wired lines are resistive elements, so that line loss can be generated in the operation process of the air conditioner, line parameters of the air conditioner are determined by obtaining model identification of the air conditioner, and line resistance is determined based on the line parameters, so that the line loss of the line is determined by combining the line resistance after an effective value of input current is determined, on one hand, the incidence relation between the model identification and the line parameters of different air conditioners can be correspondingly determined after the model identification is obtained, the line loss of the air conditioner is determined based on the line parameters, and therefore the detection requirement of the line loss in the air conditioners of different models is met, on the other hand, after the line loss is detected, the number of the line loss is increased on the basis of the power of the indoor unit of the air conditioner and/or the power of the outdoor unit of the air conditioner Therefore, the accuracy of power detection of the air conditioner is improved, and detection errors are reduced.
Specifically, parameters (such as line length and line diameter) of the connecting line and the power line of different air conditioner models are different, so that line losses of different air conditioner models are different. Therefore, in the practical application process, how to judge the line parameters of different air conditioner models and calculate the line loss based on the judged parameters is an important link for accurately obtaining the overall power of the air conditioner.
In the above technical solution, determining the line parameter of the air conditioner according to the model identifier of the air conditioner specifically includes: responding to a line loss detection instruction and/or a complete machine power detection instruction, and acquiring a model identifier; and inquiring corresponding line parameters according to the model identification.
In the technical scheme, the model detection operation of the air conditioner can be triggered and executed based on the line loss detection instruction, and can also be triggered and executed based on the whole machine power detection instruction, so that in the description information, the corresponding line parameter is determined according to the model identification, and the line loss of the air conditioner of the model is further determined.
In any of the above technical solutions, determining the line resistance according to the line parameter specifically includes: the line parameters comprise line length and line diameter, and the line resistance is determined according to the line length, the line diameter and the resistivity.
In any of the above technical solutions, determining a line loss according to an effective value of an input current and a line resistance specifically includes: and determining the line loss according to the effective value of the input current, the line resistance and the line core parameters.
In this technical solution, the effective value of the input circuit is determined by the power supply voltage, and the line loss is calculated based on the effective value of the current and the line resistance.
In any of the above technical solutions, the method further includes: and determining the wire core parameters according to the line type.
And the number of lines causing line loss is represented by line core parameters.
In any one of the above technical solutions, the line loss is determined according to the effective value of the input current, the line resistance and the line core parameter, and specifically includes: determining line loss according to a resistance power calculation formula, wherein the resistance calculation formula is Pw＝Irms 2*R*N，PwTo line loss, IrmsThe effective value of the input current is R is the line resistance and N is the core parameter.
In any of the above technical solutions, the lines of the air conditioner include lines between an indoor unit and an outdoor unit of the air conditioner and a power line.
In any of the above technical solutions, before determining the line parameters of the air conditioner according to the model identifier of the air conditioner, the method further includes: extracting model identification and line parameters from the description information of the air conditioner; and establishing a mapping relation between the model identification and the line parameters, and storing the mapping relation in a memory of the air conditioner.
In the technical scheme, a mapping relation is established between the model identification and the line parameters, so that when line loss needs to be detected, the model identification of the current air conditioner is obtained, the corresponding line parameters are determined based on the model identification, and the line loss of the current air conditioner is determined according to the line parameters, the effective input current and other parameters.
According to a second aspect of the present invention, there is provided an air conditioner line loss detection apparatus, comprising: a memory and a processor; a memory for storing program code; a processor configured to execute the steps of the method for detecting line loss of an air conditioner according to any one of the aspects of the present invention.
According to a third aspect of the present invention, there is provided an air conditioner comprising the air conditioner line loss detection device according to any one of the fourth aspects.
According to an aspect of the fourth aspect of the present invention, there is provided a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the method for detecting the air conditioner line loss according to any one of the aspects of the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart illustrating a method for detecting a line loss of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a method for detecting a line loss of an air conditioner according to another embodiment of the present invention;
fig. 3 is a schematic block diagram illustrating an apparatus for detecting a line loss of an air conditioner according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The air conditioner may be an integrated air conditioner or a split air conditioner, the air conditioner includes an indoor unit and an outdoor unit, an indoor fan is disposed in the indoor unit, the indoor fan is specifically an ac fan or a built-in dc fan, and a detection method of power of the ac fan and/or the built-in dc fan is described below with reference to specific embodiments.
The first embodiment is as follows:
as shown in fig. 1, a method for detecting a line loss of an air conditioner according to an embodiment of the present invention includes:
and 102, determining the line parameters of the air conditioner according to the model identification of the air conditioner.
Before step 102 is executed, the method further includes: extracting model identification and line parameters from the description information of the air conditioner; and establishing a mapping relation between the model identification and the line parameters, and storing the mapping relation in a memory of the air conditioner.
In this embodiment, a mapping relationship is established between the model identifier and the line parameter, so that when the line loss needs to be detected, the model identifier of the current air conditioner is obtained, the corresponding line parameter is determined based on the model identifier, and the line loss of the current air conditioner is determined according to the line parameter, the effective input current and other parameters.
In addition. Step 102 may be performed based on responses to the following instructions, including: responding to a line loss detection instruction and/or a complete machine power detection instruction, and acquiring a model identifier; and inquiring corresponding line parameters according to the model identification.
In this embodiment, the model detection operation of the air conditioner may be triggered and executed based on the line loss detection instruction, or may be triggered and executed based on the entire power detection instruction, so as to determine, in the description information, the corresponding line parameter according to the model identifier, so as to further determine the line loss of the air conditioner of the model.
And step 104, determining the line resistance according to the line parameters.
Wherein, the line parameters include line length and line diameter, and step 104 specifically includes: and determining the line resistance according to the line length, the line diameter and the resistivity.
And step 106, determining the line loss according to the effective value of the input current and the line resistance.
In order to calculate the line loss, the processing needs to determine the effective value of the input current and the line resistance, and may further obtain the core parameters, where the core may include a live line (L line), a neutral line (N line), a ground line and a signal line, where the ground line and the signal line may have substantially negligible loss, and thus the lines causing the loss are the L line and the N line, and thus the core parameters may be determined based on the L line and the N line.
In any of the above embodiments, determining the line loss according to the effective value of the input current and the line resistance specifically includes: and determining the line loss according to the effective value of the input current, the line resistance and the line core parameters.
In this embodiment, the effective value of the input circuit is determined by the power supply voltage, and the line loss is calculated based on the effective value of the current and the line resistance.
In any of the above embodiments, determining the line loss according to the effective value of the input current, the line resistance, and the line core parameter specifically includes: determining line loss according to a resistance power calculation formula, wherein the resistance calculation formula is as follows:
Pw＝Irms 2*R*N
wherein Pw is line loss, IrmsThe effective value of the input current is R is the line resistance and N is the core parameter.
In this embodiment, the indoor unit and the outdoor unit of the air conditioner and the indoor unit and the power supply are connected by wired lines to charge the indoor unit and the outdoor unit by the power supply, and the wired lines are resistive elements, so that line loss is generated during the operation of the air conditioner, and therefore, line parameters of the air conditioner are determined by obtaining model identifiers of the air conditioner, and line resistance is determined based on the line parameters, so that after an effective value of an input current is determined, line loss of the line is determined by combining the line resistance And the accuracy of power detection of the air conditioner is improved, and the detection error is reduced.
Specifically, parameters (such as line length and line diameter) of the connecting line and the power line of different air conditioner models are different, so that line losses of different air conditioner models are different. Therefore, in the practical application process, how to judge the line parameters of different air conditioner models and calculate the line loss based on the judged parameters is an important link for accurately obtaining the overall power of the air conditioner.
In any of the above embodiments, the lines of the air conditioner include lines between an indoor unit and an outdoor unit of the air conditioner and a power line.
Example two:
the following further describes the detection scheme of the line loss of the air conditioner in this application with reference to the second embodiment.
The implementation process of the air conditioner line loss detection scheme in the application can include an offline implementation stage and an online implementation stage.
In the off-line implementation stage, model identifications and corresponding standard circuit parameters of different air conditioner models are obtained, and on the basis, the circuit parameter values corresponding to each model are built in a program and are prestored in a memory of the air conditioner.
The online implementation stage is how the air conditioner determines the line parameters collocated with the machine type of the air conditioner and calculates the corresponding line loss in the actual application process, and the calculation process of the line loss is realized through interaction between the indoor unit and the outdoor unit, and is specifically described as follows:
when the indoor unit is started, the indoor unit transmits a model identification command to the outdoor according to the indoor program setting.
And after the outdoor unit receives the instruction, calling the line parameters matched with the model identification in the program.
After the line parameters of the model identification are determined, the outdoor program starts to calculate line resistances which are the indoor and outdoor connecting line resistances and the power line resistances respectively, and the calculation formula is as follows:
where ρ is the resistivity (copper, for example, 0.0175 Ω · m2And/m), l is the length of the wire, and S is the sectional area of the wire.
After the line resistance is obtained, the line loss can be obtained according to a calculation formula of pure resistance electric power:
Pw＝Irms 2*R*N (2)
wherein, IrmsIs the effective value of the AC current; and N is a wire core. To indoor outer connecting wire, the sinle silk has: the power line (L line), the neutral line (N line), the ground line and the signal line, wherein the ground line and the signal line have negligible loss, so that the lines causing loss are the L line and the N line, that is, N is 2; for the power line, the core has: live (L-wire), neutral (N-wire) and earth wires, the same also being L-wire and N-wire, i.e. N-2, the wires that cause losses.
As shown in fig. 2, another method for detecting line loss of an air conditioner according to the present invention includes:
step 202, checking and taking standard wire length and wire diameter matched with each type of air conditioner as circuit parameters according to a product specification;
step 204, generating a table according to the line parameters, and programming a line loss detection program;
step 206, receiving a starting-up instruction;
step 208, the air conditioner indoor unit sends the model identification of the air conditioner to the air conditioner outdoor unit;
step 210, the outdoor unit receives the model identification to configure corresponding line parameters;
step 212, calculating the line resistance according to the line length and the line diameter;
based on the effective value of the input AC current, the line loss is calculated, step 214.
The scheme does not need to change hardware foundation, realizes the purpose based on a software form, and has very simple realization process.
Example three:
as shown in fig. 3, the line loss detecting device 30 for an air conditioner according to an embodiment of the present invention includes: a memory 302 and a processor 304.
A memory 302 for storing program code; the processor 304 is configured to call a program code to execute the method for detecting the air conditioner line loss according to any of the embodiments.
Example four:
the air conditioner according to the embodiment of the invention comprises the detection device 60 for the line loss of the air conditioner according to the embodiment.
In this embodiment, the air conditioner includes any one of the operation control devices, so that all the beneficial technical effects of the operation control device are achieved, and are not described herein again.
Example five:
in one embodiment of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the control method of an air conditioner as set forth in any one of the above.
In this embodiment, the computer program is executed by the processor to implement the steps of the control method of the air conditioner as described in any one of the above embodiments, so that all the beneficial technical effects of the control method of the air conditioner are achieved, and are not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described 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 flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A method for detecting line loss of an air conditioner is characterized by comprising the following steps:
determining the line parameters of the air conditioner according to the model identification of the air conditioner;
determining a line resistance according to the line parameters;
and determining the line loss according to the effective value of the input current and the line resistance.
2. The method for detecting the line loss of the air conditioner according to claim 1, wherein the determining the line parameters of the air conditioner according to the model identifier of the air conditioner specifically comprises:
responding to a line loss detection instruction and/or a complete machine power detection instruction, and acquiring the model identification;
and inquiring the corresponding line parameters according to the model identification.
3. The method for detecting the line loss of the air conditioner according to claim 2, wherein the determining the line resistance according to the line parameter specifically comprises:
the line parameters comprise line length and line diameter, and the line resistance is determined according to the line length, the line diameter and the resistivity.
4. The method for detecting the line loss of the air conditioner according to claim 3, wherein the determining the line loss according to the effective value of the input current and the line resistance specifically comprises:
and determining the line loss according to the effective value of the input current, the line resistance and the line core parameters.
5. The air conditioner line loss detection method according to claim 4, further comprising:
and determining the wire core parameters according to the line type.
6. The method for detecting the line loss of the air conditioner according to claim 1, wherein the determining the line loss according to the effective value of the input current, the line resistance and the line core parameter specifically comprises:
determining the line loss according to a resistance power calculation formula,
wherein the resistance calculation formula is Pw＝Irms 2*R*N，PwTo the line loss, IrmsAnd the effective value of the input current is R, the line resistance is R, and the core parameter is N.
7. The air conditioner line loss detection method according to any one of claims 1 to 6,
the circuit of the air conditioner comprises a circuit and a power supply circuit between an indoor unit and an outdoor unit of the air conditioner.
8. The method for detecting the line loss of the air conditioner according to any one of claims 2 to 6, wherein before determining the line parameters of the air conditioner according to the model identifier of the air conditioner, the method further comprises:
extracting the model identification and the line parameter from the description information of the air conditioner;
and establishing a mapping relation between the model identification and the line parameters, and storing the mapping relation in a memory of the air conditioner.
9. The utility model provides a detection device of air conditioner line loss which characterized in that includes: a memory and a processor;
the memory for storing program code;
the processor is used for calling the program codes to execute the air conditioner line loss detection method according to any one of claims 1 to 8.
10. An air conditioner, comprising:
the apparatus for detecting line loss of an air conditioner according to claim 9.
11. A computer-readable storage medium having an operation control program stored thereon, wherein the operation control program, when executed by a processor, implements the method for detecting a line loss of an air conditioner according to any one of claims 1 to 8.
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