CN113324328A - Method and device for determining shielding frequency of refrigeration equipment and storage medium - Google Patents
Method and device for determining shielding frequency of refrigeration equipment and storage medium Download PDFInfo
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- CN113324328A CN113324328A CN202110509438.2A CN202110509438A CN113324328A CN 113324328 A CN113324328 A CN 113324328A CN 202110509438 A CN202110509438 A CN 202110509438A CN 113324328 A CN113324328 A CN 113324328A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 176
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000002159 abnormal effect Effects 0.000 claims abstract description 98
- 238000004590 computer program Methods 0.000 claims description 4
- 230000000873 masking effect Effects 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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Abstract
The invention discloses a method and a device for determining shielding frequency of refrigeration equipment and a storage medium, wherein the determination method comprises the following steps: acquiring the working frequency and the operating parameters of the refrigeration equipment; judging whether the operation parameter reaches a preset threshold or not; when the operation parameter is judged to reach a preset threshold, determining the current working frequency of the refrigeration equipment as the frequency to be shielded, and updating the abnormal times corresponding to the current working frequency of the refrigeration equipment; judging whether the abnormal times corresponding to the current working frequency of the refrigeration equipment reach preset abnormal times or not; when the abnormal times corresponding to the current working frequency of the refrigeration equipment are judged not to reach the preset abnormal times, the step of obtaining the working frequency of the refrigeration equipment and the operation parameters of the refrigeration equipment is executed again; and when the abnormal times corresponding to the current working frequency of the refrigeration equipment reach the preset abnormal times, determining the current working frequency of the refrigeration equipment as the shielding frequency.
Description
Technical Field
The invention relates to the field of refrigeration equipment regulation and control, in particular to a method and a device for determining shielding frequency of refrigeration equipment and a storage medium.
Background
Manufacturers of air conditioners before leaving factories detect data such as noise, stress, vibration and the like through experiments to shield frequency points (also called shielding points) corresponding to the data when the data are abnormal, namely, the working frequency of the air conditioners can avoid the frequency points, so that discomfort of users caused by excessive noise and vibration of the air conditioners can be avoided. However, the shielding point of the air conditioner is also related to the outdoor environment temperature, the torque compensation depth, the opening degree of the electronic expansion valve, and other condition data, and these related condition data are in a changing state, and the manufacturer cannot dynamically adjust according to the actual installation environment of the user before shipping.
Therefore, a more accurate method for determining the shielding point is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a method and a device for determining the shielding frequency of refrigeration equipment and a storage medium, so as to solve the problem that the refrigeration equipment cannot determine a shielding point according to the actual installation environment of a user.
In order to achieve the above object, an embodiment of the present invention provides a method for determining a shielding frequency of a refrigeration apparatus, including: acquiring the working frequency and the operating parameters of the refrigeration equipment; judging whether the operation parameter reaches a preset threshold or not; when the operation parameter is judged to reach a preset threshold, determining the current working frequency of the refrigeration equipment as the frequency to be shielded, and updating the abnormal times corresponding to the current working frequency of the refrigeration equipment; judging whether the abnormal times corresponding to the current working frequency of the refrigeration equipment reach preset abnormal times or not; when the abnormal times corresponding to the current working frequency of the refrigeration equipment are judged not to reach the preset abnormal times, the step of obtaining the working frequency of the refrigeration equipment and the operation parameters of the refrigeration equipment is executed again; and when the abnormal times corresponding to the current working frequency of the refrigeration equipment reach the preset abnormal times, determining the current working frequency of the refrigeration equipment as the shielding frequency.
Further, before the step of obtaining the operating frequency and the operating parameters of the refrigeration equipment, the determining method comprises: receiving a working frequency switching instruction of refrigeration equipment; judging whether the working frequency of the switched refrigeration equipment is shielding frequency; and when the working frequency of the switched refrigeration equipment is judged to be the shielding frequency, the working frequency switching instruction is not executed, and the working frequency switching instruction of the refrigeration equipment is received again.
Further, the step of determining that the current operating frequency of the refrigeration equipment is the frequency to be shielded, and updating the number of times of abnormal operating frequency of the refrigeration equipment includes: acquiring current working condition parameters; judging whether the current working condition parameters are recorded; and when the current working condition parameters are judged to be recorded, updating the abnormal times corresponding to the current working frequency of the refrigeration equipment.
Further, in the step of judging whether the current working condition parameter is recorded, when it is judged that the current working condition parameter is not recorded, the current working condition parameter is stored, and the number of times of abnormality corresponding to the current working frequency corresponding to the current working condition parameter is set to be a preset initial value.
Further, the step of updating the number of abnormal times corresponding to the current operating frequency of the refrigeration equipment when it is determined that the current operating condition parameter has been recorded includes: adding the abnormal times corresponding to the current working frequency with a preset value to obtain a sum value; and updating the value of the abnormal times corresponding to the current working frequency into the sum value.
Further, the operating condition parameter includes at least one of an outdoor ambient temperature, a compressor torque compensation depth, an electronic expansion valve opening degree, and an external fan rotating speed.
Further, the operating parameter includes at least one of vibration data, noise data, stress data.
Further, after the step of determining that the current operating frequency of the refrigeration equipment is the shielding frequency, the method includes: judging whether the number of the shielding frequencies is equal to a preset threshold value or not; and when the number of the shielding frequencies is judged to be smaller than the preset threshold value, the step of acquiring the working frequency and the operating parameters of the refrigeration equipment is executed again.
The embodiment of the invention also provides a device for determining the shielding frequency of the refrigeration equipment, which comprises the following components: the parameter acquisition unit is used for acquiring the working frequency of the refrigeration equipment and the operation parameters of the refrigeration equipment; the operation parameter judging unit is used for judging whether the operation parameter reaches a preset threshold or not; the abnormal frequency updating unit is used for determining the current working frequency of the refrigeration equipment as the frequency to be shielded and updating the abnormal frequency corresponding to the current working frequency of the refrigeration equipment; the abnormal frequency comparison unit is used for judging whether the abnormal frequency corresponding to the current working frequency of the refrigeration equipment reaches a preset abnormal frequency or not; and the shielding frequency determining unit is used for determining the current working frequency of the refrigeration equipment as the shielding frequency.
The embodiment of the present invention further provides a storage medium, where a computer program is stored, and when the computer program is read and executed by a processor, any step of the determination method according to the embodiment of the present invention is executed.
The method and the device for determining the shielding frequency of the refrigeration equipment and the storage medium provided by the embodiment of the invention determine the shielding frequency by calculating the abnormal times, and the shielding frequency is obtained through the actual working environment of the refrigeration equipment, so that the shielding frequency determined by the method for determining the shielding frequency of the refrigeration equipment is more accurate and meets the actual requirement of a user, and the problem that the shielding point cannot be determined according to the actual installation condition of the user after the traditional refrigeration equipment leaves a factory is solved.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a flowchart of a determination method according to an embodiment of the present invention.
Fig. 2 is a sub-flowchart of step S300 shown in fig. 1.
Fig. 3 is a sub-flowchart of step S330 shown in fig. 2.
Fig. 4 is a schematic structural diagram of a determination apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of the abnormal number updating unit 130 shown in fig. 4.
Description of reference numerals:
reference part name
100 determining device 110 parameter acquisition unit
120 operation parameter judgment unit 130 abnormal number updating unit
140 abnormal frequency comparing unit 150 mask frequency determining unit
160 mask number compare unit 170 instructs the receive unit
180 frequency determination unit 131 working condition parameter acquisition unit
132 operating mode parameter comparison unit 133 initial value setting unit
134 abnormality number calculation unit 135 abnormality number setting unit.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present application provides a method for determining a shielding frequency of a refrigeration device, including the following steps.
And S100, acquiring the working frequency and the operating parameters of the refrigeration equipment. The operation parameters are various operation parameters of the refrigeration equipment during actual operation. Specifically, the operating parameter includes at least one of vibration data, noise data, stress data. Preferably, the operating parameter may be a composite parameter consisting of any of the above parameters. The accuracy of the data can be improved by collecting various operation parameters, so that whether the current operation parameters cause discomfort to a user or not is accurately measured. The operating parameter may not be limited to the above-described parameters, and the operating parameter may be selected as any detection parameter that may affect the user's comfort.
And step S200, judging whether the operation parameter reaches a preset threshold.
The preset threshold is determined through multiple tests, if the operation parameter selects vibration data or noise data, the specific numerical value of the preset threshold may be a certain fixed value of the vibration data or the noise data, and when the vibration data or the noise data is greater than or equal to the fixed value, a user may feel obvious discomfort, and at this time, the fixed value is set as the preset threshold. If the operating parameter selects the stress data, the specific numerical value of the preset threshold can be a certain fixed value of the stress data, when the stress data is greater than or equal to the fixed value, the pipeline can generate a risk of cracking, and at the moment, the fixed value is set as the preset threshold.
If the operating parameter is selected from vibration data or noise data, the user may feel a significant discomfort when the operating parameter reaches the predetermined threshold. For example, the vibration data may be obtained by a vibration sensor, and when the vibration data is greater than a preset threshold, the subsequent step of determining the current operating frequency of the refrigeration equipment as the frequency to be shielded is performed. For another example, the noise data may be detected and obtained by a device such as a noise ball or a microphone for detecting indoor noise, and when the noise data is greater than a certain decibel, the subsequent step of determining the current operating frequency of the refrigeration equipment as the frequency to be shielded is performed.
If the operating parameter is stress data, when the stress data reaches the preset threshold, the unit pipeline of the refrigeration equipment may have a risk of breakage. Therefore, the determining method provided by the embodiment can protect the unit pipeline of the refrigeration equipment to a certain extent, and the service life of the refrigeration equipment is prolonged.
It should be noted that, since the data obtained by the experiment is not suitable for each user group, the specific number of the preset threshold is not limited in this embodiment. For example: when the operation parameter is noise data, the preset threshold can be selected to be 55 decibels, and when the noise data of the refrigeration equipment reaches 55 decibels, the steps as described below are executed to determine the current working frequency of the refrigeration equipment to be the frequency to be shielded. The frequency to be shielded in this embodiment is a frequency at which the abnormal frequency does not reach the preset abnormal frequency, and when the refrigeration equipment is to be switched to the frequency to be shielded, the refrigeration equipment can work at the frequency to be shielded.
And step S300, when the operation parameter is judged to reach the preset threshold, determining the current working frequency of the refrigeration equipment as the frequency to be shielded, and updating the abnormal times corresponding to the current working frequency of the refrigeration equipment.
The abnormal times described in this embodiment refer to the times that the refrigeration equipment is switched to a certain frequency to be shielded.
And S400, judging whether the abnormal frequency corresponding to the current working frequency of the refrigeration equipment reaches a preset abnormal frequency or not.
In this embodiment, since the statistics of the abnormal times corresponding to the current operating frequency is performed by an accumulation method, the selected preset abnormal times are greater than the initial value of the abnormal times. Optionally, if the statistics of the abnormal times corresponding to the current operating frequency adopts a subtraction mode, the selected preset abnormal times are smaller than the initial value of the abnormal times.
Step S500, when it is determined that the abnormal frequency corresponding to the current operating frequency of the refrigeration apparatus does not reach the preset abnormal frequency, re-executing the step of obtaining the operating frequency of the refrigeration apparatus and the operation parameters of the refrigeration apparatus (i.e., step S100).
And step S510, when the abnormal frequency corresponding to the current working frequency of the refrigeration equipment is judged to reach the preset abnormal frequency, determining the current working frequency of the refrigeration equipment as the shielding frequency.
The shielding frequency is an operating frequency at which the refrigeration equipment does not operate all the time, and once the frequency to be shielded is determined as the shielding frequency, the shielding frequency is not switched to any more during the use process of a user. I.e. the operating frequency of the refrigeration equipment can be switched to the frequency to be shielded before the frequency to be shielded is converted to the shielding frequency.
In other embodiments, step S510 further comprises the steps of: and judging whether the number of the shielding frequencies is equal to a preset threshold value or not.
When the number of the shielding frequencies is judged to be less than the preset threshold value, the step of acquiring the working frequency and the operating parameters of the refrigeration equipment is executed again (i.e. step S100). By means of judging the number of the shielding frequencies, the problem that the frequency selectable by a user is too low due to too much shielding frequencies can be solved.
In other embodiments, before the step of obtaining the operating frequency and the operating parameters of the refrigeration equipment (i.e., step S100), the following steps are included: receiving a working frequency switching instruction of refrigeration equipment; judging whether the working frequency of the switched refrigeration equipment is shielding frequency; and when the working frequency of the switched refrigeration equipment is judged to be the shielding frequency, the working frequency switching instruction is not executed, and the step of receiving the working frequency switching instruction of the refrigeration equipment is executed again. When the working frequency of the refrigeration equipment after switching is determined not to be the shielding frequency, a switching working frequency instruction is executed, that is, the user is allowed to change the working frequency of the refrigeration equipment, and after the working frequency of the refrigeration equipment is changed, step S100 is executed. The embodiment can reduce the operation load of the refrigeration equipment by setting the precondition.
In other words, the switching operation frequency is a starting condition of the determination method, but is not limited thereto. For example: the user can start any flow of the determination method provided by the embodiment through a specific key. In this embodiment, a user may send an instruction for switching the operating frequency to the refrigeration device through a remote controller or a mobile terminal, and the refrigeration device executes subsequent steps after receiving the instruction. In this embodiment, the refrigeration apparatus may be an air conditioner, but is not limited thereto.
When the operating frequency of the refrigeration device is the same as the shielding frequency, the following undesirable conditions may occur. For example: the vibration frequency of the refrigeration equipment under the operation frequency is the same as the inherent vibration frequency of the wall body, so that the resonance between the wall body and the refrigeration equipment can be caused, and a user can feel uncomfortable due to the resonance noise. Another example is: when the refrigeration equipment operates at the operating frequency, the stress of the refrigeration equipment may be abnormal, and further, the pipeline of the refrigeration equipment may be broken. Therefore, in order to avoid such situations, it is desirable to disable operation of the refrigeration unit at these operating frequencies. In other words, the operating frequency of the refrigeration device cannot be set to the masking frequency.
Referring to fig. 2, in the step of determining the current operating frequency of the refrigeration equipment as the frequency to be shielded and updating the abnormal frequency number of the operating frequency of the refrigeration equipment (i.e., step S300), the method includes:
and S310, acquiring current working condition parameters. The working condition parameters comprise at least one of outdoor environment temperature, compressor torque compensation depth, electronic expansion valve opening degree and external fan rotating speed.
Preferably, the operating condition parameter may be a composite parameter consisting of any of the above parameters. The current working condition of the refrigeration equipment can be accurately measured through the parameters, and the shielding point of the refrigeration equipment can be conveniently determined according to the actual working condition in the subsequent steps.
The determining method provided by the embodiment can be applied to an outdoor unit of the refrigeration equipment, so that the outdoor environment temperature can be collected to be used as the working condition parameter of the outdoor unit of the refrigeration equipment. The other working condition parameter of the refrigeration equipment is the compressor torque compensation depth which is used for compensating the torque reduction caused by the resistance of the stator winding of the compressor at low speed, and the parameter can automatically increase the voltage during acceleration to compensate the starting torque, so that the compressor can be smoothly accelerated. The other working condition parameter of the refrigeration equipment is the opening degree of the electronic expansion valve, and the electronic expansion valve is used for controlling the voltage or the current applied to the expansion valve by utilizing an electric signal generated by the regulated parameter so as to achieve the aim of regulating the liquid supply amount. Above-mentioned refrigeration plant's operating mode parameter, like compressor torque compensation degree of depth, electronic expansion valve opening and outer fan rotational speed unusual can lead to refrigeration plant life to reduce, so the definite method that this embodiment provided can increase refrigeration plant's life to a certain extent, and then promotes user experience and feels. The operating condition parameters are not limited to the above parameters, and the operating condition parameters can be any detection parameters which can cause adverse effects on the refrigeration equipment.
And step S320, judging whether the current working condition parameters are recorded. The shielding points can be set according to the actual outdoor environment of the user, that is, each shielding frequency is not shielding frequency all the time, and when a shielding frequency does not have adverse effect on the user or refrigeration equipment under a certain working condition, the shielding frequency does not need shielding under the working condition and is changed into the normal working frequency. The refrigeration equipment shielding point obtained by the determination method better conforms to the actual environment of the user, so that the experience of the user is improved.
And step S330, updating the abnormal times corresponding to the current working frequency of the refrigeration equipment when the current working condition parameters are judged to be recorded. And when the current working condition parameters are judged to be not recorded, storing the current working condition parameters, and setting the abnormal times corresponding to the current working frequency corresponding to the current working condition parameters as a preset initial value.
Optionally, a list may be used to record a plurality of operating condition parameters corresponding to each operating parameter, and the number of abnormal times corresponding to each operating condition parameter is updated through the list. Through the list mode, one-to-many data relation between the operation parameters and the working condition parameters can be established, and subsequent management is facilitated. Preferably, the relationship between one operation parameter and a plurality of working condition parameters is realized through a database, and a developer can store the database into a cloud server or the local storage of the refrigeration equipment. If the cloud server is selected for storing the database, manufacturers can classify and summarize the database to obtain the characteristics of user groups, and installation parameters of refrigeration equipment in the same region can be conveniently set. The cloud server can be connected in any one of the following ways: GPRS (General Packet Radio Service), WLAN (Wireless Local Area network). The cloud server can be connected with the refrigeration equipment in the mode. Optionally, the manufacturer may perform numerical simulation on each parameter through the cloud server, and determine whether to perform the shielding operation.
Although the technical solutions of the steps S100 to S510 are complete, the accuracy of the obtained shielding frequency has a certain error because the real-time working conditions of each acquisition are different. Therefore, in an embodiment of the present invention, to avoid the above error, steps S310 to S330 may be added, to associate the operating condition parameter with the abnormal frequency, so as to obtain the abnormal frequency of the current operating frequency under each operating condition, that is, the determination of the shielding frequency is related to the operating condition parameter. The masking frequency obtained by performing steps S310 to S330 corresponds to different conditions, and therefore, the masking frequency is more suitable for the use environment of the user.
Referring to fig. 3, step S330, when it is determined that the current operating condition parameter has been recorded, updating the number of abnormal times corresponding to the current operating frequency of the refrigeration equipment includes the following sub-steps.
Step S331, adding the abnormal frequency corresponding to the current operating frequency to a preset value to obtain a sum. The preset value may be selected to be 1, but is not limited thereto. In this embodiment, an accumulation method is adopted to update the abnormal times, and in other embodiments, an accumulation method may also be adopted to update the abnormal times, that is, the preset value may be a negative number. Since the addition or subtraction of the abnormal times is performed to make the abnormal times reach the preset threshold, the specific operation method is not limited in this embodiment.
Step S332, update the value of the abnormal frequency corresponding to the current operating frequency to the sum value.
Since step S300 also includes the step of updating the number of abnormality times corresponding to the current operating frequency of the refrigeration apparatus, steps S331 to S332 may also be taken as substeps of step S300.
The method for determining the shielding frequency of the refrigeration equipment can determine the shielding points according to the actual environment of the user and different states of the refrigeration equipment, solves the problem that the shielding points determined by manufacturers are not accurate enough, reduces the probability of causing discomfort to the user of the refrigeration equipment in various environments, reduces the probability of complaint of the user, and greatly improves the use experience of the user.
Referring to fig. 4, based on the method for determining the shielding frequency of the refrigeration equipment, the embodiment further provides a device 100 for determining the shielding frequency of the refrigeration equipment, which includes: a parameter acquisition unit 110, an operation parameter judgment unit 120, an abnormality number update unit 130, an abnormality number comparison unit 140, a mask frequency determination unit 150, and a mask number comparison unit 160.
The parameter acquiring unit 110 is used for acquiring an operating frequency of the refrigeration equipment and an operating parameter of the refrigeration equipment. The operation parameters are various operation parameters of the refrigeration equipment during actual operation. Specifically, the operating parameter includes at least one of vibration data, noise data, stress data. Preferably, the operating parameter may be a composite parameter consisting of any of the above parameters. The accuracy of the data can be improved by collecting various operation parameters, so that whether the current operation parameters cause discomfort to a user or not is accurately measured. The operating parameter may not be limited to the above-described parameters, and the operating parameter may be selected as any detection parameter that may affect the user's comfort.
The operation parameter determining unit 120 is configured to determine whether the operation parameter reaches a preset threshold. The preset threshold is determined through a plurality of tests, and if the operation parameters adopt vibration data or noise data, users can feel obvious uncomfortable feeling when the operation parameters reach the preset threshold. For example, the vibration data may be obtained by a vibration sensor, and when the vibration data is greater than a certain vibration frequency, the subsequent step of determining the current operating frequency of the refrigeration equipment as the frequency to be shielded is performed. For another example, the noise data may be detected and obtained by a device such as a noise ball or a microphone for detecting indoor noise, and when the noise data is greater than a certain decibel, the current operating frequency of the refrigeration equipment may be determined as the frequency to be shielded. If the operating parameter is stress data, when the stress data reaches the preset threshold, the unit pipeline of the refrigeration equipment may have a risk of breakage. It should be noted that, since the data obtained by the experiment is not suitable for each user group, the specific number of the preset threshold is not limited in this embodiment.
The abnormal number updating unit 130 is configured to determine the current operating frequency of the refrigeration device as a frequency to be shielded, and update the abnormal number corresponding to the current operating frequency of the refrigeration device. The abnormal frequency comparing unit 140 is used to determine whether the abnormal frequency corresponding to the current operating frequency of the refrigeration equipment reaches a preset abnormal frequency. Since the present embodiment adopts the accumulation method, the selected preset abnormal times are greater than the initial value of the abnormal times, and optionally, when the abnormal times are updated in the accumulation and subtraction manner, the selected preset abnormal times are less than the initial value of the abnormal times.
The shielding frequency determining unit 150 is used to determine the current operating frequency of the refrigeration equipment as the shielding frequency. The mask number comparing unit 160 is used to determine whether the number of mask frequencies is equal to a preset threshold.
With continued reference to fig. 4, the determining apparatus 100 in this embodiment further includes: the command receiving unit 170 is configured to receive a command for switching an operating frequency of the refrigeration equipment. The frequency determination unit 180 is configured to determine whether the operating frequency of the switched refrigeration equipment is a shielding frequency.
Referring to fig. 5, in the present embodiment, the abnormal number updating unit 130 includes a condition parameter obtaining unit 131, a condition parameter comparing unit 132, an initial value setting unit 133, an abnormal number calculating unit 134, and an abnormal number setting unit 135.
The operating condition parameter acquiring unit 131 is configured to acquire a current operating condition parameter. The working condition parameters comprise at least one of outdoor environment temperature, compressor torque compensation depth, electronic expansion valve opening degree and external fan rotating speed. Preferably, the operating condition parameter may be a composite parameter consisting of any of the above parameters. The current working condition of the refrigeration equipment can be accurately measured through the parameters, and the shielding point of the refrigeration equipment can be conveniently determined according to the actual working condition. The device for determining the shielding frequency of the refrigeration equipment can be applied to an outdoor unit of the refrigeration equipment, so that the outdoor environment temperature can be collected to serve as the working condition parameter of the outdoor unit of the refrigeration equipment. One working condition parameter of the refrigeration equipment is the compressor torque compensation depth which is used for compensating the torque reduction caused by the resistance of the stator winding of the compressor at low speed, and the parameter can automatically increase the voltage during acceleration to compensate the starting torque, so that the compressor can be smoothly accelerated. The other working condition parameter of the refrigeration equipment is the opening degree of the electronic expansion valve, and the electronic expansion valve is used for controlling the voltage or the current applied to the expansion valve by utilizing an electric signal generated by the regulated parameter so as to achieve the aim of regulating the liquid supply amount. Above-mentioned refrigeration plant's operating mode parameter, can lead refrigeration plant life to reduce like compressor torque compensation degree of depth, electronic expansion valve opening and outer fan rotational speed are unusual, so the refrigeration plant's that this embodiment provided determination device of shielding frequency can increase refrigeration plant's life to a certain extent, and then promotes user experience and feels. The operating condition parameters are not limited to the above parameters, and the operating condition parameters can be any detection parameters which can cause adverse effects on the refrigeration equipment.
The condition parameter comparing unit 132 is used to determine whether the current condition parameter has been recorded. The initial value setting unit 133 is configured to store the current operating condition parameter, and set the abnormal frequency corresponding to the current operating condition parameter as a preset initial value. The abnormal frequency calculating unit 134 is configured to add the abnormal frequency corresponding to the current operating frequency to a preset value to obtain a sum. The abnormal number setting unit 135 is configured to update the value of the abnormal number corresponding to the current operating frequency to the sum. In this embodiment, an accumulation method is adopted to update the abnormal times, and in other embodiments, an accumulation method may also be adopted to update the abnormal times, that is, the preset value may be a negative number. Since the purpose of adding or subtracting the abnormal times is to make the abnormal times reach a preset threshold, the specific operation method is not limited in this embodiment.
Optionally, a list may be used to record a plurality of operating condition parameters corresponding to each operating parameter, and the number of abnormal times corresponding to each operating condition parameter is updated through the list. One-to-many data relation between the operation parameters and the working condition parameters can be established in a list mode, and subsequent management is facilitated. Preferably, the relationship between an operating parameter and a plurality of working condition parameters is realized through a database, and a developer can store the database in a cloud server or a local storage of the refrigeration equipment. If the cloud server is selected for storing the database, manufacturers can classify and summarize the database to obtain the characteristics of user groups, and installation parameters of refrigeration equipment in the same region can be conveniently set. The cloud server can be connected in any one of the following ways: GPRS (General Packet Radio Service), WLAN (Wireless Local Area network). The cloud server can be connected with the refrigeration equipment in the mode. Optionally, the manufacturer may perform numerical simulation on each parameter through the cloud server, and determine whether to perform the shielding operation.
The device for determining the shielding frequency of the refrigeration equipment can determine the shielding points according to the actual environment of a user and different states of the refrigeration equipment, solves the problem that the shielding points determined by manufacturers are not accurate enough, reduces the probability of causing discomfort to the user of the refrigeration equipment in various environments, reduces the probability of complaint of the user, and greatly improves the use experience of the user.
Based on the above determination method, the present invention further provides a storage medium storing a computer program, which is read and executed by a processor to perform any one of the steps of the determination method of the shielding frequency of the refrigeration equipment.
The method, the device and the storage medium for determining the shielding frequency of the refrigeration equipment provided by the embodiment of the present invention are described in detail above, and the principle and the implementation manner of the present invention are explained in detail herein by applying a specific example, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A method of determining a shielding frequency of a refrigeration appliance, comprising:
acquiring the working frequency and the operating parameters of the refrigeration equipment;
judging whether the operation parameter reaches a preset threshold or not;
when the operation parameter is judged to reach a preset threshold, determining the current working frequency of the refrigeration equipment as the frequency to be shielded, and updating the abnormal times corresponding to the current working frequency of the refrigeration equipment;
judging whether the abnormal times corresponding to the current working frequency of the refrigeration equipment reach preset abnormal times or not;
when the abnormal times corresponding to the current working frequency of the refrigeration equipment are judged not to reach the preset abnormal times, the step of obtaining the working frequency and the operation parameters of the refrigeration equipment is executed again; and
and when the abnormal times corresponding to the current working frequency of the refrigeration equipment reach the preset abnormal times, determining the current working frequency of the refrigeration equipment as the shielding frequency.
2. The method of claim 1, wherein said step of obtaining an operating frequency and operating parameters of the refrigeration appliance is preceded by the steps of:
receiving a working frequency switching instruction of refrigeration equipment;
judging whether the working frequency of the switched refrigeration equipment is shielding frequency; and
and when the working frequency of the switched refrigeration equipment is judged to be the shielding frequency, the working frequency switching instruction is not executed, and the step of receiving the working frequency switching instruction of the refrigeration equipment is executed again.
3. The method for determining the current working frequency of the refrigeration equipment as the frequency to be shielded, and updating the abnormal times corresponding to the current working frequency of the refrigeration equipment, as set forth in claim 1, comprises the steps of:
acquiring current working condition parameters;
judging whether the current working condition parameters are recorded; and
and when the current working condition parameters are judged to be recorded, updating the abnormal times corresponding to the current working frequency of the refrigeration equipment.
4. The determination method according to claim 3, wherein in the step of determining whether the current operating condition parameter has been recorded, when it is determined that the current operating condition parameter has not been recorded, the current operating condition parameter is stored, and the number of anomalies corresponding to the current operating frequency corresponding to the current operating condition parameter is set to a preset initial value.
5. The method for determining as set forth in claim 3, wherein said step of updating the number of anomalies for the current operating frequency of the refrigeration appliance when it is determined that the current operating condition parameter has been recorded comprises:
adding the abnormal times corresponding to the current working frequency with a preset value to obtain a sum value; and
and updating the value of the abnormal times corresponding to the current working frequency into the sum value.
6. The method of claim 3, wherein the operating condition parameter includes at least one of an outdoor ambient temperature, a compressor torque compensation depth, an electronic expansion valve opening, and an external fan speed.
7. The method of determining of claim 1, wherein the operating parameter comprises at least one of vibration data, noise data, stress data.
8. The method of claim 1, wherein the step of determining that the current operating frequency of the refrigeration appliance is the masking frequency is followed by:
judging whether the number of the shielding frequencies is equal to a preset threshold value or not; and
and when the number of the shielding frequencies is judged to be smaller than the preset threshold value, the step of acquiring the working frequency and the operating parameters of the refrigeration equipment is executed again.
9. A device for determining the shielding frequency of a refrigeration appliance, comprising:
the parameter acquisition unit is used for acquiring the working frequency of the refrigeration equipment and the operation parameters of the refrigeration equipment;
the operation parameter judging unit is used for judging whether the operation parameter reaches a preset threshold or not;
the abnormal frequency updating unit is used for determining the current working frequency of the refrigeration equipment as the frequency to be shielded and updating the abnormal frequency corresponding to the current working frequency of the refrigeration equipment;
the abnormal frequency comparison unit is used for judging whether the abnormal frequency corresponding to the current working frequency of the refrigeration equipment reaches a preset abnormal frequency or not; and
and the shielding frequency determining unit is used for determining the current working frequency of the refrigeration equipment as the shielding frequency.
10. A storage medium, characterized in that it stores a computer program which, when read and executed by a processor, performs the steps of the method as defined in any one of claims 1 to 8.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113932408A (en) * | 2021-09-18 | 2022-01-14 | 浙江中广电器股份有限公司 | Anti-resonance control method for variable frequency air conditioner |
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