Compressor starting control method, refrigeration system and storage medium

Abstract

The invention discloses a compressor starting control method, a refrigeration system and a storage medium. The method comprises the steps that in response to the situation that at least two pieces of target refrigeration equipment reach compressor starting conditions, the current temperature and the preset target temperature of chambers of the target refrigeration equipment are obtained; according to the temperature difference value of the current temperature and the target temperature of each chamber, the starting sequence is determined; target compressors corresponding to the target refrigeration equipment are started at intervals according to the starting sequence. The current temperature of the chamber of the target refrigeration equipment and the preset target temperature are obtained, the temperature difference value is determined, then the starting sequence of the target compressor is determined, and the target compressor is started at intervals according to the starting sequence, so that the compressors of the refrigeration system can be started in sequence according to the refrigeration requirement; resonance noise caused by simultaneous starting of multiple compressors is avoided, and the operation quality of the refrigeration system is improved.

Description

Technical Field

[0001] This invention relates to the field of compressor control technology, and in particular to a compressor start-up control method, a refrigeration system, and a storage medium. Background Technology

[0002] Existing refrigeration systems often contain multiple refrigeration units and corresponding compressors. When these compressors need to start simultaneously, the close proximity of the compressors can cause acoustic resonance, resulting in significant noise. Furthermore, existing refrigeration systems lack a priority order for compressor startup, leading to multiple compressors starting at the same time, generating considerable noise and negatively impacting user experience. Therefore, it is necessary to adjust the compressor startup sequence according to the cooling needs of each refrigerated compartment to improve the operational quality of the refrigeration system. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a compressor start-up control method, a refrigeration system and a storage medium, which can start the compressor sequentially according to refrigeration demand, and avoid the resonance noise generated by the compressor during the start-up process from affecting the operating quality of the refrigeration system.

[0004] In a first aspect, embodiments of the present invention provide a compressor start-up control method applied to a refrigeration system, the refrigeration system including multiple refrigeration devices, each of the refrigeration devices being equipped with a corresponding compressor; the method includes: in response to at least two target refrigeration devices reaching compressor start-up conditions, acquiring the current temperature of the compartment of the target refrigeration device and a preset target temperature; determining a start-up sequence based on the temperature difference between the current temperature and the target temperature of each compartment; and starting the target compressor corresponding to the target refrigeration device at intervals according to the start-up sequence.

[0005] The compressor start-up control method provided by the present invention has at least the following beneficial effects: by obtaining the current temperature of the compartment of the target refrigeration equipment and the preset target temperature, the temperature difference is determined, and then the start-up sequence of the target compressor is determined. The target compressor is started at intervals according to the start-up sequence, so that the compressor of the refrigeration system can be started in sequence according to the refrigeration demand, avoiding resonance noise caused by the simultaneous start of multiple compressors, and improving the operating quality of the refrigeration system.

[0006] Secondly, embodiments of the present invention provide an operation control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the compressor start-up control method as described above.

[0007] The operation control device provided according to the embodiments of the present invention has at least the following beneficial effects: by acquiring the current temperature of the compartment of the target refrigeration equipment and the preset target temperature, the temperature difference is determined, and then the starting sequence of the target compressor is determined. The target compressor is started at intervals according to the starting sequence, so that the compressor of the refrigeration system can be started in sequence according to the refrigeration demand, avoiding the resonance noise generated by the simultaneous start of multiple compressors, and improving the operating quality of the refrigeration system.

[0008] Thirdly, embodiments of the present invention provide a refrigeration system, characterized in that it includes an operation control device as described above, wherein the operation control device is connected to multiple refrigeration devices.

[0009] The refrigeration system provided by the embodiments of the present invention has at least the following beneficial effects: by obtaining the current temperature of the compartment of the target refrigeration equipment and the preset target temperature, the temperature difference is determined, and then the starting sequence of the target compressor is determined. The target compressor is started at intervals according to the starting sequence, so that the compressor of the refrigeration system can be started in sequence according to the refrigeration demand, avoiding resonance noise caused by the simultaneous start of multiple compressors, and improving the operating quality of the refrigeration system.

[0010] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to execute the compressor start-up control method described above.

[0011] The computer-readable storage medium provided according to the embodiments of the present invention has at least the following beneficial effects: by acquiring the current temperature of the compartment of the target refrigeration equipment and the preset target temperature, the temperature difference is determined, and then the starting sequence of the target compressor is determined. The target compressor is started at intervals according to the starting sequence, so that the compressor of the refrigeration system can be started in sequence according to the refrigeration demand, avoiding resonance noise caused by the simultaneous start of multiple compressors, and improving the operating quality of the refrigeration system.

[0012] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0013] Figure 1 This is a flowchart of a compressor start-up control method provided in an embodiment of the present invention; Figure 2 yes Figure 1 Flowchart of step S1000; Figure 3 yes Figure 1 Flowchart of step S2000; Figure 4 yes Figure 1 A flowchart of another embodiment of step S2000; Figure 5 yes Figure 4 Flowchart of step S2500; Figure 6 yes Figure 1 A flowchart of another embodiment of step S2000; Figure 7 yes Figure 6 Flowchart of step S2800; Figure 8 yes Figure 1 Flowchart of step S3000; Figure 9 yes Figure 1 Structural diagram of refrigeration equipment and compressor; Figure 10 This is a structural diagram of an operation control device provided in an embodiment of the present invention. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various implementations. Simultaneously, the steps or actions described in the method description can be rearranged or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various orders in the specification and drawings are merely for the clear description of a particular embodiment and do not imply a mandatory order, unless otherwise stated that a particular order must be followed.

[0015] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0016] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0017] A refrigerator is a refrigeration device that maintains a constant low temperature; it is also a consumer product that keeps food or other items at a constant low temperature. Inside the refrigerator are a compressor, an ice maker, a cabinet or box for freezing ice, and a storage box with a refrigeration unit. The compressor, a driven fluid machine that raises low-pressure gas to high-pressure gas, is the core component of the refrigeration system. The compressor draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it using a piston driven by a motor, and then discharges high-temperature, high-pressure refrigerant gas through the discharge pipe, providing power for the refrigeration cycle.

[0018] When the refrigeration equipment is in cooling mode, the compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant, which is then transported to the compartment through copper pipes. In the compartment, the high-temperature, high-pressure gaseous refrigerant releases heat in the condenser and becomes liquid refrigerant. It then passes through the expansion valve to reduce its pressure and becomes a low-temperature, low-pressure liquid refrigerant. Finally, it absorbs heat from the compartment and vaporizes in the evaporator, thus achieving a cooling effect.

[0019] In recent years, with the increasing demand for refrigeration in homes, supermarkets, and cold storage facilities, existing refrigeration systems often contain multiple refrigeration units and corresponding compressors to meet different refrigeration needs. During system startup or operation, when compressors need to start simultaneously, the close proximity of multiple compressors can cause acoustic resonance, generating significant noise. Furthermore, the lack of priority in compressor startup in existing refrigeration systems leads to multiple compressors starting simultaneously, resulting in noise that negatively impacts user experience and can cause drastic load fluctuations, affecting the normal operation of the refrigeration system.

[0020] Based on this, this embodiment provides a compressor start-up control method, a refrigeration system, and a storage medium. By obtaining the current temperature of the compartment of the target refrigeration equipment and the preset target temperature, the temperature difference is determined, and then the start-up sequence of the target compressor is determined. The target compressor is started at intervals according to the start-up sequence, so that the compressors of the refrigeration system can be started sequentially according to the refrigeration demand, avoiding resonance noise caused by multiple compressors starting at the same time, and improving the operating quality of the refrigeration system.

[0021] Please see Figure 1 , Figure 1 A flowchart of a compressor start-up control method provided in an embodiment of this application is shown. Figure 1 As shown, the compressor start-up control method of this application embodiment includes at least the following steps: In step S1000, in response to at least two target refrigeration devices reaching the compressor start-up condition, the current temperature of the compartment of the target refrigeration device and the preset target temperature are obtained.

[0022] Understandably, a refrigeration system comprises multiple refrigeration units, each equipped with a corresponding compressor. During startup, each refrigeration unit has its own refrigerant circulation system, which requires startup control for precise temperature control. The compressor is the core of this system, providing the power for refrigerant circulation and also serving as the source of noise. Therefore, startup commands must be sent to each compressor to quickly bring the refrigeration system into operation. Furthermore, during operation, if multiple compressors are stopped and multiple refrigeration units simultaneously meet the startup requirements, at least two target compressors must start simultaneously. Again, startup commands must be sent to each target compressor to ensure the refrigeration system quickly enters operational status.

[0023] Understandably, please see Figure 9 , Figure 9 A structural diagram of the refrigeration equipment and compressor in an embodiment of this application is shown. Figure 9 As shown, the refrigeration system includes refrigeration units A, B, C, and D, each equipped with a corresponding compressor A, B, C, and D, connected to the operation control device via signal lines A, B, C, and D, respectively. When at least two compressors meet the starting conditions, these compressors are considered target compressors, and the refrigeration system's operation control device sends a start command to each target compressor. In existing technology, multiple refrigeration units are often controlled independently; that is, when multiple compressors simultaneously meet the starting conditions, start commands are sent to multiple target compressors simultaneously. Therefore, there is a possibility that multiple target compressors will simultaneously execute start-up operations after receiving the start command. In this case, the resonance noise caused by the simultaneous start-up of multiple target compressors can affect the operational quality of the refrigeration system.

[0024] It should be noted that the refrigeration system's operation control device connects to multiple refrigeration units and their compressors via signal lines to precisely control the starting and stopping of each compressor. In practical applications, the operation control device sends start commands to the target compressor via signal lines under different operating conditions, which is existing technology and will not be elaborated here.

[0025] Please see Figure 2 , Figure 2 A schematic diagram illustrating the specific implementation process of another embodiment of step S1000 described above is shown. For example... Figure 2 As shown, step S1000 includes at least the following steps: Step S1100: Receive a power-on start request from the target refrigeration device.

[0026] It is understandable that during the startup phase of a refrigeration system, or when multiple refrigeration devices are connected to the refrigeration system and start up for the first time, or when a startup command is manually sent to multiple refrigeration devices, there are multiple target refrigeration devices waiting to be started.

[0027] Step S1200: The current temperature of the compartment of the target refrigeration equipment is detected to have reached the preset compressor start-up temperature.

[0028] Understandably, during the operation of a refrigeration system, there are situations where the compressors of multiple refrigeration units will be shut down after reaching the set temperature. As the temperature rises, when the current temperature of the compartments of multiple refrigeration units reaches the preset compressor start-up temperature, multiple target refrigeration units will have a cooling demand, and their corresponding compressors will need to start and cool the compartments. At this time, there are also multiple target refrigeration units waiting to be started.

[0029] Step S1300: Confirm that multiple target refrigeration devices have met the compressor start-up conditions.

[0030] Understandably, upon receiving a power-on request from the target refrigeration device or detecting that the current temperature of the target refrigeration device's compartment has reached the preset compressor start-up temperature, the target refrigeration device is deemed to have met the compressor start-up conditions. In practical applications, it is rare for the compressor start-up conditions to be met simultaneously. Therefore, by using a preset time threshold, if multiple target refrigeration devices meet the compressor start-up conditions within a predetermined time range, their compressors are sorted.

[0031] In some embodiments, to avoid multiple compressors starting consecutively within a short period of time, resulting in compressors being in a running state simultaneously, a time threshold can be set so that multiple target compressors that need to be started can be started sequentially within the time threshold range. For example, when a start request for the current target refrigeration device is received at time t0, or when the current temperature of the compartment of the current target refrigeration device is detected to have reached a preset compressor start temperature, a timer is started. If no new start request for the target refrigeration device is received within the time frame t0+T, the current target compressor is started. If a new start request for the target refrigeration device is received within the time frame t0+T, the received start requests for multiple target refrigeration devices are statistically analyzed and sorted. That is, after each start request received within the time range [t0, t0+T], the corresponding target refrigeration device is counted, and it is confirmed that the target refrigeration device has met the compressor start condition.

[0032] In other embodiments, to avoid the delayed start of the compressor affecting the refrigeration effect of the refrigeration system, the start request can be received by extending the time threshold. Specifically, when a start request for the current target refrigeration device is received at time t0, or when the current temperature of the compartment of the current target refrigeration device is detected to have reached the preset compressor start temperature, timing begins; if no new start request for the target refrigeration device is received within the preset time threshold T, the current target compressor is started; if a new start request for the target refrigeration device is received within the preset time threshold T, timing is restarted until the timing duration reaches the time threshold T and no new start request is received, then the compressors corresponding to the start requests received from time t0 are sorted.

[0033] Step S1400: Obtain the current temperature of the chamber of the target refrigeration equipment and the preset target temperature.

[0034] Understandably, setting the target temperature for each compartment of a refrigeration unit is crucial for food preservation and needs to be adjusted according to different compartments and specific conditions. Specifically, if the refrigeration unit is a refrigerator, its compartments include the refrigerator compartment, freezer compartment, and crisper compartment. The temperature of the refrigerator compartment should generally be maintained between 0-5℃. This temperature range is most suitable for most foods because it slows down spoilage and extends their shelf life. If the temperature is set too high, food may spoil quickly; if the temperature is set too low, some foods may freeze. The temperature of the freezer compartment should generally be maintained below -18℃. This temperature range is suitable for storing various frozen foods, including meat, fish, and frozen vegetables. Lower temperatures can inhibit microbial growth and maintain the freshness of food. If the temperature is too high, frozen foods may spoil quickly, while if the temperature is too low, the freezing process may be slowed down. The temperature of the crisper compartment should be set between 0-4℃ to maintain the freshness and taste of food. The crisper compartment is mainly used to store cooked food, leftovers, and other similar foods. In practical applications, users set the target temperature of each compartment through the operation control device of the refrigeration system or configure the target temperature of each compartment according to the default parameters. Therefore, the operation control device can directly read the preset target temperature.

[0035] It should be noted that the target refrigeration unit is equipped with a temperature sensor in its compartment. The temperature sensor is connected to the operation control device of the refrigeration system via the refrigeration unit and signal lines, thus enabling the real-time acquisition of the current temperature of the corresponding compartment. Specifically, the real-time reading of the current temperature of the target refrigeration unit's compartment via a temperature sensor is existing technology and will not be elaborated upon here.

[0036] Step S2000: Determine the startup sequence based on the temperature difference between the current temperature and the target temperature of each room.

[0037] Understandably, after obtaining the current temperature and target temperature of each compartment, the difference between the current temperature and the target temperature of each compartment can be compared to accurately determine the cooling demand of each compartment and the starting sequence of the target compressors for each compartment. For example, when it is detected that the current temperature of the compartments of two refrigeration units is lower than the target temperature, meeting the conditions for compressor start-up, in order to enable the refrigeration unit with higher cooling demand to start its compressor and begin cooling as soon as possible, the target refrigeration unit with the larger temperature difference between its current temperature and the target temperature should be started first.

[0038] Please see Figure 3 , Figure 3 A schematic diagram illustrating the specific implementation process of another embodiment of step S2000 described above is shown. For example... Figure 3 As shown, step S2000 includes at least the following steps: Step S2100: Determine the temperature difference between the current temperature and the target temperature of each compartment in the target refrigeration equipment.

[0039] Understandably, when the current temperature of each compartment in the target refrigeration unit is higher than the target temperature, it means that all compartments in the target refrigeration unit have a cooling requirement. In this case, it is necessary to obtain the current temperature and target temperature of each compartment in the target refrigeration unit to determine the temperature difference between the current temperature and the target temperature for each compartment. In practical applications, when the refrigeration system is shut down and needs to be restarted, or when the ambient temperature rises causing the current temperature of each compartment in multiple target refrigeration units to exceed the target temperature, each compartment needs to be cooled, and it is necessary to determine the temperature difference between the current temperature and the target temperature for each compartment in the target refrigeration unit.

[0040] Step S2200: The maximum temperature difference is taken as the representative temperature difference of the target refrigeration equipment.

[0041] Understandably, after obtaining the temperature difference between the current temperature and the target temperature of each compartment, the largest temperature difference needs to be selected as the representative temperature difference of the target refrigeration equipment. Since the current temperature and target temperature are different for each compartment, and the temperature difference between them also varies, the largest temperature difference needs to be used as the representative temperature difference to fully reflect the cooling requirements of the target refrigeration equipment. Of course, in other embodiments, the temperature difference of one compartment can also be specified as the representative temperature difference of the target refrigeration equipment to prioritize meeting the cooling needs of that compartment.

[0042] Step S2300: Determine the start-up sequence based on the representative temperature difference of each target refrigeration device.

[0043] It is understandable that after determining the representative temperature difference value of each target refrigeration device, the starting order of the target compressors corresponding to each target refrigeration device can be determined based on the representative temperature difference value. In practical applications, the target refrigeration devices are sorted according to the representative temperature difference value. Target refrigeration devices with larger representative temperature differences have greater cooling demands, therefore, the target refrigeration device with the largest representative temperature difference value is started first. That is, the starting order of the target compressors is determined according to the representative temperature difference value of each target refrigeration device from largest to smallest. In other embodiments, the starting order of the target compressors can also be determined by combining the preset starting coefficient of the target refrigeration devices with the representative temperature difference value. For example, the starting order can be determined by sorting according to the product of the starting coefficient and the representative temperature difference value. This allows for reasonable control of the sequential starting of the target compressors based on the starting coefficient and cooling demand of the target refrigeration devices, effectively reducing the starting noise of the target compressors while ensuring that the cooling demand is met.

[0044] Please see Figure 4 , Figure 4 A schematic diagram illustrating the specific implementation process of another embodiment of step S2000 described above is shown. For example... Figure 4 As shown, step S2000 further includes the following steps: Step S2400: Determine the target compartment in the target refrigeration equipment whose current temperature is greater than or equal to the compressor start-up temperature, and determine the temperature difference between the current temperature and the target temperature of the target compartment.

[0045] Understandably, when only some compartments in the target refrigeration equipment meet the conditions for compressor startup—that is, only some compartments have a current temperature greater than or equal to the compressor startup temperature—it is necessary to first identify the compartments in the target refrigeration equipment whose current temperature is greater than or equal to the compressor startup temperature as the target compartments. Specifically, when there is only one target compartment, the cooling demand of the target compartment is the same as the cooling demand of the target refrigeration equipment. Therefore, by calculating the temperature difference between the current temperature and the target temperature of the target compartment, the cooling demand of the target refrigeration equipment can be accurately obtained.

[0046] Step S2500: Use the temperature difference of the target room as the representative temperature difference of the target refrigeration equipment.

[0047] It is understandable that after obtaining the temperature difference value of the target compartment through the above steps, it can be determined that the temperature difference value of the target compartment accurately reflects the cooling demand of the target refrigeration equipment. Therefore, the temperature difference value of the target compartment is used as the representative temperature difference value of the target refrigeration equipment. For example, when there are multiple target compartments, the temperature difference value of the target compartment that best reflects the cooling demand needs needs to be selected as the representative temperature difference value of the target refrigeration equipment. Specifically, when the temperature difference value of the target compartment is the maximum value of the temperature difference values ​​of all target compartments, the temperature difference value of the target compartment can accurately reflect the cooling demand of the target refrigeration equipment.

[0048] Please see Figure 5 , Figure 5 A schematic diagram illustrating the specific implementation process of another embodiment of step S2500 described above is shown. For example... Figure 5 As shown, step S2500 further includes the following steps: Step S2510: If there are two or more target chambers, compare the temperature difference between the target chambers.

[0049] Understandably, when there are two or more target compartments—that is, multiple compartments in the target refrigeration equipment that meet the compressor start-up conditions—it is necessary to compare the temperature differences between the target compartments to determine the target compartment with the greatest cooling demand, in order to ensure that the representative temperature difference meets the cooling needs of each target compartment. When there are two or more target compartments, it is necessary to obtain the temperature difference between the target compartments and compare the magnitude of the temperature differences among them to determine the maximum temperature difference.

[0050] Step S2520: The maximum temperature difference is taken as the representative temperature difference of the target refrigeration equipment.

[0051] It is understandable that the maximum temperature difference obtained after comparing the temperature differences of the target compartments in step S2510 is used to determine the representative temperature difference of the target refrigeration equipment as the maximum temperature difference. This can effectively ensure that the representative temperature difference of the target refrigeration equipment can meet the refrigeration needs of all target compartments, and avoid the refrigerator's refrigeration effect and operating quality being affected if the compressor cannot meet the refrigeration needs of all target compartments in time during startup.

[0052] Step S2600: Determine the start-up sequence based on the representative temperature difference of each target refrigeration device.

[0053] It is understandable that, consistent with step S2300 above, after determining the representative temperature difference value of each target refrigeration device, the starting order of the target compressors corresponding to each target refrigeration device needs to be determined based on the representative temperature difference value. In practical applications, the target refrigeration devices are sorted according to the representative temperature difference value. Target refrigeration devices with larger representative temperature differences have greater cooling demands, therefore, the target refrigeration device with the largest representative temperature difference value is started first. That is, the starting order of the target compressors is determined according to the representative temperature difference value of each target refrigeration device from largest to smallest.

[0054] Please see Figure 6 , Figure 6 A schematic diagram illustrating the specific implementation process of another embodiment of step S2000 described above is shown. For example... Figure 6 As shown, step S2000 further includes the following steps: Step S2700: Calculate the difference between the current temperature and the target temperature to obtain the temperature difference between the rooms.

[0055] Understandably, consistent with steps S2200 or S2500, after determining the target room, the temperature difference of the room is obtained by calculating the difference between the current temperature and the target temperature. Specifically, by calculating the temperature difference between the current temperature and the target temperature, the difference between the current temperature and the target temperature can be effectively obtained, thereby accurately determining the cooling requirements of the target room.

[0056] Step S2800: Sort the temperature differences from largest to smallest to obtain the sorting result of the temperature differences.

[0057] Understandably, after obtaining the temperature differences of each target compartment, a representative temperature difference for the target refrigeration equipment is obtained. Since the magnitude of this representative temperature difference directly reflects the cooling demand of the target refrigeration equipment—a larger representative temperature difference indicates that the current temperature of the target refrigeration equipment is much higher than the target temperature—it is necessary to start the corresponding compressor as quickly as possible to bring the current temperature close to the target temperature. Therefore, the compressors should be started earlier in the startup sequence. Consequently, the temperature differences need to be sorted from largest to smallest to obtain the sorted temperature difference results.

[0058] Please see Figure 7 , Figure 7 A schematic diagram illustrating the specific implementation process of another embodiment of step S2800 described above is shown. For example... Figure 7 As shown, step S2800 further includes the following steps: Step S2810: Determine the preset number or identification code of the target refrigeration equipment with the same temperature difference.

[0059] It is understandable that, in the presence of compartments with equal temperature differences, to prevent the target compressors corresponding to these compartments from starting simultaneously, the starting order of the target compressors with equal temperature differences needs to be determined according to a preset default arrangement. In this embodiment, the starting order of the target compressors with equal temperature differences is determined by the preset number or identification code of the refrigeration equipment. It is understood that the operation control device of the refrigeration system can directly read the preset number or identification code of the refrigeration equipment through signal lines, which is existing technology and will not be elaborated here.

[0060] Step S2820: Determine the default arrangement order based on the preset number or identifier code.

[0061] It is understandable that, due to the uniqueness of the preset number or identification code of the refrigeration equipment, the arrangement order of the compartments can be determined through the preset number or identification code of the refrigeration equipment. In practical applications, sorting can also be performed using the preset number or identification code of the target compressor, or the signal line interface number of the target refrigeration equipment. These numbers, identification codes, and interface numbers are unique within the refrigeration system and can be used to sort compartments with equal temperature differences; however, this is not a limitation here.

[0062] Step S2830: If at least two temperature differences are equal, determine the starting sequence of the target compressors with equal temperature differences according to the default arrangement order.

[0063] It is understandable that when there are multiple equal temperature differences, the target compressors with equal temperature differences are sorted according to the default arrangement determined in step S2820 above, so as to avoid the simultaneous start-up of target compressors with equal temperature differences.

[0064] Step S2900: Determine the startup order based on the sorting results.

[0065] Understandably, after obtaining the sorting results of the temperature differences, the starting order of the target compressors corresponding to each temperature difference can be determined. Since the sorting results are obtained by ranking the temperature differences from largest to smallest, determining the starting order of the target compressors according to the sorting results ensures that the target compressors for the rooms with larger temperature differences are started first, thus meeting the cooling needs of the target rooms and preventing excessively large temperature differences in the target rooms from affecting the cooling effect of the refrigeration system.

[0066] Step S3000: Start the target compressor at intervals according to the startup sequence.

[0067] Understandably, after obtaining the target compressor start-up sequence in the above steps, the refrigeration system's operation control device can send start-up commands to the corresponding target compressors sequentially according to the start-up sequence. Since the target compressor needs a certain amount of time from receiving the start-up command to completing the start-up process, it is necessary to start the target compressors intermittently. Intermittent start-up of the target compressors means that after each target compressor starts, a certain time interval needs to be set before starting the next target compressor. Intermittent start-up can effectively prevent the impact on the power grid and damage to the refrigeration equipment caused by continuous start-up of target compressors, and can also effectively alleviate the resonance problem of the refrigeration system.

[0068] Please see Figure 8 , Figure 8 A schematic diagram illustrating the specific implementation process of another embodiment of step S3000 described above is shown. For example... Figure 8 As shown, step S3000 further includes the following steps: In step S3100, in response to starting one of the target compressors, timing is initiated.

[0069] Understandably, to precisely time the start of the target compressor, a timer is used to keep track after the current target compressor starts. Specifically, the timer receives the start signal sent by the operation control device to the target compressor to begin timing, accurately obtaining the start time of the current target compressor and avoiding situations where the time interval between the start of two target compressors is too long or too short. An excessively long time interval between the start of two target compressors will cause the target compartment corresponding to the next target compressor to fail to reach the target temperature for a long time, affecting the efficiency of the refrigeration system; an excessively short time interval will result in the current target compressor not being fully started before the next target compressor receives and executes the start command, with both target compressors running simultaneously. This can lead to resonance issues and increased power demand, affecting the stability of the refrigeration system. It is understood that responding to the start of one of the target compressors and using a timer to keep track is existing technology and will not be elaborated upon here.

[0070] Step S3200: When the timing reaches the preset interval, start the next target compressor according to the startup sequence.

[0071] Understandably, in order to avoid multiple target compressors starting up at the same time, after sending a start command to one of the target compressors, a timer needs to be set for a preset interval before sending a start command to the next target compressor in the start order.

[0072] Understandably, the compressor is the core component of the refrigeration cycle system. Its main function is to draw in low-temperature, low-pressure refrigerant, compress it into a high-temperature, high-pressure gas, and dissipate heat through the radiator, causing it to cool and condense into a liquid, thus completing the refrigeration cycle. During startup, the compressor motor is subjected to a starting current, which compresses the refrigerant within the compressor, increasing its temperature and pressure. The time required after compressor startup includes discharge time, pressure rise time, and oil temperature reaching the set point. Specifically, during startup, the compressor needs to completely expel any residual gas from the cylinders to ensure normal operation. This discharge time is generally around 10 seconds; however, different compressor models have different structures, resulting in varying startup times. Because sufficient compression force is required for startup, larger compressor models require a longer startup time. The compressor's lubricating oil needs to reach a certain temperature for smooth lubrication, and as the temperature rises, the oil viscosity decreases, affecting flow performance. Therefore, in the first few minutes after startup, the temperature inside the compressor needs to rise to ensure the lubrication system can function properly.

[0073] It should be noted that the interval is determined by the model of the target compressor and the operating environment. Generally, a refrigerator compressor needs time to function properly after starting, typically 3-5 minutes. Therefore, in practical applications, the interval is set to 5 minutes. That is, after 5 minutes, the next target compressor is started according to the startup sequence, ensuring that the current target compressor is functioning correctly before starting the next one.

[0074] like Figure 10 As shown, Figure 10 This is a schematic diagram of an operation control device 500 provided in one embodiment of this application.

[0075] An embodiment of this application also provides an operation control device 500, including at least one processor 510 and a memory 520 for communicatively connecting to the at least one processor; the memory 520 stores instructions executable by the at least one processor, which are executed by the at least one processor 510 to enable the at least one processor 510 to perform the compressor start control method as described above.

[0076] The operation control device 500 in this embodiment includes one or more processors 510 and a memory 520. Figure 10 The example uses a processor 510 and a memory 520.

[0077] The processor 510 and the memory 520 can be connected via a bus or other means. Figure 10 Taking the example of a connection between China and Israel via a bus.

[0078] Memory 520, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory 520 may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory 520 may optionally include memory 520 remotely located relative to processor 510, and these remote memories can be connected to the operation control device 500 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0079] An embodiment of this application also provides a refrigeration system, characterized in that it includes an operation control device 500 as described above, the operation control device 500 being connected to multiple refrigeration devices.

[0080] Embodiments of this application also provide a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions for causing a computer to execute the compressor start-up control method described above.

[0081] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0082] The above is a detailed description of the preferred embodiments of this application. However, this application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A compressor start-up control method, characterized in that, The method is applied to a refrigeration system, the refrigeration system comprising multiple refrigeration devices, each of which is equipped with a corresponding compressor; the method includes: In response to at least two target refrigeration devices reaching the compressor start-up condition, the current temperature of the compartment of the target refrigeration device and the preset target temperature are obtained; The startup sequence is determined based on the temperature difference between the current temperature and the target temperature of each of the chambers; The target compressor corresponding to the target refrigeration equipment is started at intervals according to the start-up sequence.

2. The method according to claim 1, characterized in that, The method further includes: When a power-on start request is received from the target refrigeration equipment, or when the current temperature of the compartment of the target refrigeration equipment is detected to have reached the preset compressor start temperature, it is determined that the target refrigeration equipment has met the compressor start conditions.

3. The method according to claim 1, characterized in that, The step of determining the startup sequence based on the temperature difference between the current temperature and the target temperature of each of the compartments includes: Determine the temperature difference between the current temperature of each compartment in the target refrigeration equipment and the target temperature; The largest temperature difference is taken as the representative temperature difference of the target refrigeration equipment; The startup sequence is determined based on the representative temperature difference of each of the target refrigeration devices.

4. The method according to claim 1, characterized in that, The step of determining the startup sequence based on the temperature difference between the current temperature and the target temperature of each of the rooms further includes: Determine the target compartment in the target refrigeration equipment whose current temperature is greater than or equal to the compressor start-up temperature, and determine the temperature difference between the current temperature of the target compartment and the target temperature; The temperature difference of the target compartment is used as the representative temperature difference of the target refrigeration equipment. The startup sequence is determined based on the representative temperature difference of each of the target refrigeration devices.

5. The method according to claim 4, characterized in that, The step of using the temperature difference of the target compartment as the representative temperature difference of the target refrigeration equipment includes: If there are two or more target chambers, compare the temperature difference between the target chambers; The largest temperature difference is taken as the representative temperature difference of the target refrigeration equipment.

6. The method according to claim 1, characterized in that, The step of determining the startup sequence based on the temperature difference between the current temperature and the target temperature of each of the rooms further includes: Calculate the difference between the current temperature and the target temperature to obtain the temperature difference of the room; Sort the temperature differences from largest to smallest to obtain the sorting result of the temperature differences; The startup order is determined based on the sorting results.

7. The method according to claim 6, characterized in that, Determining the startup order based on the sorting result includes: If at least two of the temperature differences are equal, the starting order of the target compressors with equal temperature differences is determined according to the default arrangement order.

8. The method according to claim 7, characterized in that, The method further includes: Determine the preset number or identification code of the target refrigeration equipment with the same temperature difference; The default arrangement order is determined based on the preset number or identifier.

9. The method according to claim 1, characterized in that, The step of starting the target compressor corresponding to the target refrigeration equipment at intervals according to the starting sequence includes: Timing is performed in response to the activation of one of the target compressors; When the timeout period reaches the preset interval, the next target compressor is started according to the start-up sequence.

10. An operation control device, characterized in that, The system includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the compressor start-up control method as described in any one of claims 1 to 9.

11. A refrigeration system, characterized in that, The device includes the operation control device as described in claim 10, wherein the operation control device is connected to a plurality of refrigeration devices.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the compressor start-up control method as described in any one of claims 1 to 9.

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