Control method and device, refrigeration house air conditioning system and computer program product

Abstract

The invention relates to a control method and device, a refrigeration house air conditioning system and a computer program product, and relates to the technical field of control. The control method comprises the steps that operation parameters of a refrigeration house air conditioning system and environment parameters of one or more storerooms in a refrigeration house are collected; determining whether one or more storerooms have a target storeroom of which the environmental parameter is greater than a first threshold value or not; under the condition that the target storeroom exists, at least one of the starting number of compressors of the refrigeration house air conditioning system and parameters of a refrigerating unit of the refrigeration house air conditioning system is adjusted according to the operation parameters and the environment parameters, fan parameters corresponding to the target storeroom are adjusted, and the parameters of the refrigerating unit comprise the condensation temperature and the evaporation temperature.

Description

Technical Field

[0001] The present disclosure relates to the field of control technology, and in particular to a control method, a control device, a cold storage air conditioning system, a computer-readable storage medium, and a computer program product. Background Art

[0002] Cold storage consists of one or more warehouses. The energy saving of cold storage air conditioning systems is the focus of the refrigeration industry. Different cold storage air conditioning systems face different practical problems. For example, multiple warehouses require different temperatures. How to adjust the temperature of each warehouse on demand and achieve efficient and energy-saving operation of the cold storage air conditioning system as a whole is a current problem. Summary of the invention

[0003] The inventors of the present disclosure have discovered that the above-mentioned related technologies have the following problems: how to intelligently control the temperature of each room in a cold storage when the environment and demand of the cold storage are in a constantly changing state.

[0004] According to some embodiments of the first aspect of the present disclosure, a control method is provided, including: collecting operating parameters of a cold storage air-conditioning system and environmental parameters of one or more warehouses in the cold storage; determining whether there is a target warehouse in one or more warehouses whose environmental parameters are greater than a first threshold; if there is a target warehouse, adjusting the number of compressors turned on in the cold storage air-conditioning system and at least one of the parameters of a refrigeration unit of the cold storage air-conditioning system according to the operating parameters and the environmental parameters, and adjusting the fan parameters corresponding to the target warehouse, wherein the parameters of the refrigeration unit include condensing temperature and evaporating temperature.

[0005] In some embodiments, the operating parameters include the number of compressors currently running in the cold storage air conditioning system, the environmental parameters include the warehouse temperature and the warehouse temperature drop rate, and adjusting the number of compressors turned on in the cold storage air conditioning system includes: turning on a first number of compressors; and adjusting the number of compressors turned on according to the warehouse temperature and the warehouse temperature drop rate of the target warehouse.

[0006] In some embodiments, adjusting the number of compressors turned on according to the warehouse temperature and the warehouse temperature drop rate of the target warehouse includes: monitoring the warehouse temperature drop rate of the target warehouse; when the warehouse temperature drop rate is less than or equal to the second threshold, determining whether the warehouse temperature of the target warehouse is less than or equal to the third threshold; when the warehouse temperature of the target warehouse is greater than the third threshold, increasing the number of compressors turned on.

[0007] In some embodiments, adjusting the number of compressors turned on according to the warehouse temperature of the target warehouse and the warehouse temperature drop rate further includes: maintaining the number of compressors turned on when the warehouse temperature of the target warehouse is less than or equal to a third threshold.

[0008] In some embodiments, the operating parameters include the current condensing temperature and evaporating temperature of the refrigeration unit, the environmental parameters include the warehouse temperature drop rate, and adjusting the parameters of the refrigeration unit of the cold storage air-conditioning system includes: adjusting the condensing temperature and evaporating temperature of the refrigeration unit according to the warehouse temperature drop rate of the target warehouse.

[0009] In some embodiments, adjusting the condensing temperature and evaporating temperature of the refrigeration unit includes: when the warehouse temperature drop rate is less than or equal to the second threshold and greater than the fourth threshold, increasing the condensing temperature of the refrigeration unit and decreasing the evaporating temperature of the refrigeration unit.

[0010] In some embodiments, the environmental parameters also include warehouse temperature, and adjusting the parameters of the refrigeration unit of the cold storage air-conditioning system also includes: determining whether there is one or more warehouses with a warehouse temperature greater than a third threshold; if there is a warehouse with a warehouse temperature greater than the third threshold, readjusting the condensing temperature and evaporating temperature of the refrigeration unit.

[0011] In some embodiments, adjusting the parameters of the refrigeration unit of the cold storage air conditioning system further includes: turning off the compressor when there is no warehouse with a warehouse temperature greater than a third threshold.

[0012] In some embodiments, the first threshold and the third threshold of each warehouse are determined according to at least one of the cold room usage and storage category of the corresponding warehouse.

[0013] In some embodiments, the first threshold includes a first peak period threshold, a first valley period threshold or a first valley period threshold, and determining whether there is a target warehouse with environmental parameters greater than the first threshold in one or more warehouses includes: when the current period is a peak period, determining whether there is a target warehouse with environmental parameters greater than the first peak period threshold in one or more warehouses; when the current period is a valley period, determining whether there is a target warehouse with environmental parameters greater than the first valley period threshold in one or more warehouses; when the current period is a valley period, determining whether there is a target warehouse with environmental parameters greater than the first valley period threshold in one or more warehouses.

[0014] In some embodiments, the third threshold includes a third peak period threshold, a third valley period threshold or a third valley period threshold, and determining whether the warehouse temperature of the target warehouse is less than or equal to the third threshold includes: when the current period is a peak period, determining whether the warehouse temperature of the target warehouse is less than or equal to the third peak period threshold; when the current period is a valley period, determining whether the warehouse temperature of the target warehouse is less than or equal to the third valley period threshold; when the current period is a valley period, determining whether the warehouse temperature of the target warehouse is less than or equal to the third valley period threshold.

[0015] In some embodiments, the third threshold includes a third peak period threshold, a third valley period threshold or a third valley period threshold, and determining whether there are one or more warehouses with a warehouse temperature greater than the third threshold includes: when the current period is a peak period, determining whether there are one or more warehouses with a warehouse temperature greater than the third peak period threshold; when the current period is a valley period, determining whether there are one or more warehouses with a warehouse temperature greater than the third valley period threshold; when the current period is a valley period, determining whether there are one or more warehouses with a warehouse temperature greater than the third valley period threshold.

[0016] In some embodiments, the control method further includes: outputting an alarm signal when a fault occurs in the cold storage air conditioning system.

[0017] In some embodiments, the control method further includes: counting at least one of the power consumption of the cold storage air conditioning system, the power consumption of the fan, and the power consumption of the refrigeration unit.

[0018] According to some embodiments of the second aspect of the present disclosure, a control device is provided, including: a collection unit, configured to collect operating parameters of a cold storage air-conditioning system and environmental parameters of one or more warehouses in the cold storage; a determination unit, configured to determine whether there is a target warehouse in one or more warehouses whose environmental parameters are greater than a first threshold value; an adjustment unit, configured to adjust, when there is a target warehouse, the number of compressors of the cold storage air-conditioning system turned on and at least one of the parameters of a refrigeration unit of the cold storage air-conditioning system according to the operating parameters and the environmental parameters, and adjust the fan parameters corresponding to the target warehouse, wherein the parameters of the refrigeration unit include a condensing temperature and an evaporating temperature.

[0019] In some embodiments, the operating parameters include the number of compressors currently running in the cold storage air conditioning system, the environmental parameters include the warehouse temperature and the warehouse temperature drop rate, and the adjustment unit is also configured to turn on a first number of compressors; and adjust the number of compressors turned on according to the warehouse temperature and the warehouse temperature drop rate of the target warehouse.

[0020] In some embodiments, the adjustment unit is also configured to monitor the warehouse temperature drop rate of the target warehouse; when the warehouse temperature drop rate is less than or equal to the second threshold, determine whether the warehouse temperature of the target warehouse is less than or equal to the third threshold; when the warehouse temperature of the target warehouse is greater than the third threshold, increase the number of compressors turned on.

[0021] In some embodiments, the adjustment unit is further configured to maintain the number of compressors turned on when the temperature of the target storeroom is less than or equal to a third threshold.

[0022] In some embodiments, the operating parameters include the current condensing temperature and evaporating temperature of the refrigeration unit, the environmental parameters include the warehouse temperature drop rate, and the adjustment unit is further configured to adjust the condensing temperature and evaporating temperature of the refrigeration unit according to the warehouse temperature drop rate of the target warehouse.

[0023] In some embodiments, the adjustment unit is further configured to increase the condensing temperature of the refrigeration unit and decrease the evaporation temperature of the refrigeration unit when the warehouse temperature drop rate is less than or equal to the second threshold and greater than a fourth threshold.

[0024] In some embodiments, the environmental parameters also include warehouse temperature, and the adjustment unit is further configured to determine whether there is one or more warehouses with a warehouse temperature greater than a third threshold; if there is a warehouse with a warehouse temperature greater than the third threshold, the condensing temperature and evaporating temperature of the refrigeration unit are readjusted.

[0025] In some embodiments, the adjustment unit is further adjusted to turn off the compressor when there is no storeroom with a storeroom temperature greater than a third threshold.

[0026] In some embodiments, the first threshold and the third threshold of each warehouse are determined according to at least one of the cold room usage and storage category of the corresponding warehouse.

[0027] In some embodiments, the first threshold includes a first peak period threshold, a first valley period threshold or a first valley period threshold, and the determination unit is further configured to, when the current period is a peak period, determine whether there is a target warehouse in one or more warehouses whose environmental parameters are greater than the first peak period threshold; when the current period is a valley period, determine whether there is a target warehouse in one or more warehouses whose environmental parameters are greater than the first valley period threshold; when the current period is a valley period, determine whether there is a target warehouse in one or more warehouses whose environmental parameters are greater than the first valley period threshold.

[0028] In some embodiments, the third threshold includes a third peak period threshold, a third valley period threshold or a third valley period threshold, and the adjustment unit is further configured to determine whether the warehouse temperature of the target warehouse is less than or equal to the third peak period threshold when the current period is a peak period; determine whether the warehouse temperature of the target warehouse is less than or equal to the third valley period threshold when the current period is a valley period; and determine whether the warehouse temperature of the target warehouse is less than or equal to the third valley period threshold when the current period is a valley period.

[0029] In some embodiments, the third threshold includes a third peak period threshold, a third valley period threshold or a third valley period threshold, and the adjustment unit is further configured to, when the current period is a peak period, determine whether there are one or more warehouses with a warehouse temperature greater than the third peak period threshold; when the current period is a valley period, determine whether there are one or more warehouses with a warehouse temperature greater than the third valley period threshold; when the current period is a valley period, determine whether there are one or more warehouses with a warehouse temperature greater than the third valley period threshold.

[0030] In some embodiments, the control device further includes an alarm unit configured to output an alarm signal when a fault occurs in the cold storage air conditioning system.

[0031] In some embodiments, the control device further includes a statistical unit configured to count at least one of the power consumption of the cold storage air conditioning system, the power consumption of the fan, and the power consumption of the refrigeration unit.

[0032] According to some embodiments of the third aspect of the present disclosure, a control device is provided, comprising: a memory and a processor coupled to the memory, wherein the processor is configured to execute the control method in any one of the above embodiments based on instructions stored in the memory.

[0033] According to some embodiments of the fourth aspect of the present disclosure, a cold storage air conditioning system is provided, comprising: the control device in any one of the above embodiments.

[0034] According to some embodiments of the fifth aspect of the present disclosure, a computer-readable storage medium is provided, on which computer instructions are stored, and when the instructions are executed by a processor, the control method in any of the above embodiments is implemented.

[0035] According to some embodiments of the sixth aspect of the present disclosure, a computer program product is provided, comprising computer instructions, which, when executed by a processor, implement the control method in any of the above embodiments.

[0036] In the above embodiment, by collecting the operating parameters of the cold storage air conditioning system and the environmental parameters of one or more storerooms in the cold storage, it is convenient to subsequently intelligently control the temperature of each storeroom according to the operating parameters and environmental parameters. According to the environmental parameters of one or more storerooms, it is determined whether there is a target storeroom in one or more storerooms whose environmental parameters are greater than the first threshold, and then the target storeroom is screened from the one or more storerooms. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system according to the collected operating parameters and environmental parameters, and adjusting the fan parameters corresponding to the target storeroom, the temperature of each storeroom in the cold storage can be intelligently controlled when the environment and demand of the cold storage are in a constantly changing state. Intelligent control between the storerooms in the cold storage is realized, which is both independent and coordinated, and helps the cold storage air conditioning system as a whole to achieve high efficiency and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0038] The present disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings.

[0039] Figure 1 A flow chart showing some embodiments of the control method of the present disclosure.

[0040] Figure 2 Schematic diagrams showing some embodiments of the application of the cold storage air conditioning system of the present disclosure.

[0041] Figure 3 Schematic diagrams showing some embodiments of the control device of the present disclosure.

[0042] Figure 4 Schematic diagrams showing other embodiments of the control device disclosed herein.

[0043] Figure 5 Schematic diagrams showing some embodiments of the cold storage air conditioning system of the present disclosure.

[0044] Figure 6 Schematic diagrams showing other embodiments of the control method disclosed herein.

[0045] Figure 7 Schematic diagrams showing some further embodiments of the control method disclosed herein. DETAILED DESCRIPTION

[0046] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.

[0047] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0049] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0050] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0051] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0052] In the related technology, a fixed parameter control method is adopted for the cold storage air-conditioning system, that is, after the debugging personnel set the relevant parameters at the initial operation of the cold storage air-conditioning system, the cold storage air-conditioning system will operate according to the set parameters. However, the air-conditioning conditions, business load and environmental changes of each warehouse in the cold storage vary greatly, and the fixed parameter control method has the problem of being unable to meet diversified needs.

[0053] Taking the cold storage air conditioning system as an example, the cold storage requires different rooms such as the hallway area, vegetable area, meat area and seafood area, and the temperature control of different rooms is different. Therefore, as the environment and demand of the cold storage are constantly changing, how to intelligently control the temperature of each room in the cold storage is a problem that needs to be solved.

[0054] In response to the above problems, the present disclosure proposes a control method, which collects the operating parameters of the cold storage air-conditioning system and the environmental parameters of one or more warehouses in the cold storage, so as to facilitate the subsequent intelligent regulation of the temperature of each warehouse according to the operating parameters and environmental parameters. According to the environmental parameters of one or more warehouses, it is determined whether there is a target warehouse with environmental parameters greater than a first threshold in one or more warehouses, and then the target warehouse is screened from the one or more warehouses. According to the collected operating parameters and environmental parameters, the number of compressors turned on in the cold storage air-conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air-conditioning system are adjusted, and the fan parameters corresponding to the target warehouse are adjusted, so that independent and coordinated intelligent regulation between the warehouses in the cold storage is realized, which helps the cold storage air-conditioning system as a whole to achieve high efficiency and energy saving, as follows.

[0055] Figure 1 A flow chart showing some embodiments of the control method of the present disclosure.

[0056] like Figure 1 As shown, the control method includes steps 110 to 130 .

[0057] In step 110, the operating parameters of the cold storage air conditioning system and the environmental parameters of one or more rooms in the cold storage are collected.

[0058] In some embodiments, the collected operating parameters of the cold storage air-conditioning system may include the state of the refrigeration unit, the evaporating temperature of the refrigeration unit, the condensing temperature of the refrigeration unit, the suction pressure of the refrigeration unit, the exhaust pressure of the refrigeration unit, the number of operating compressors, the mode of the cold storage air-conditioning system, the total cumulative power consumption of the fan, the total cumulative power consumption of the evaporative condenser, the total cumulative power consumption of the refrigeration unit, the total cumulative power consumption of the barrel pump, the total cumulative power consumption of the cold storage air-conditioning system, the state of the evaporative condenser, the state of the evaporative condenser water pump, the state of the evaporative condenser fan, the fan fault position, the evaporative condenser fault position, the refrigeration unit fault position, the barrel pump fault position, the touch screen and the unit mainboard communication fault position, the compressor status and at least one of the cold storage status, and the collected environmental parameters of one or more warehouses include at least one of the temperature, humidity and warehouse temperature drop rate of one or more warehouses.

[0059] In step 120, it is determined whether there is a target warehouse with an environmental parameter greater than a first threshold in one or more warehouses. For example, the first threshold is the upper temperature limit of the target warehouse.

[0060] In some embodiments, the first threshold of each warehouse is determined according to at least one of the cold room purpose and storage category of the corresponding warehouse. The cold room purpose is divided into storage and preservation. Storage is to ensure that food does not deteriorate and rot, and the temperature is basically constant; if the cold room purpose is preservation, the temperature needs to be dynamically adjusted according to the characteristics of the food itself. Storage category refers to the classification of stored things, such as meat, seafood, fruits, vegetables, etc.

[0061] The first threshold of each warehouse is determined according to at least one of the cold room purpose and storage category of the corresponding warehouse, so that different cold room purposes and storage categories correspond to different first thresholds, which is more in line with the needs of real life, obtains a more accurate first threshold, and realizes accurate intelligent regulation.

[0062] In some embodiments, the first threshold includes a first peak period threshold, a first valley period threshold or a first low valley period threshold. The first threshold is determined to be the first peak period threshold, the first valley period threshold or the first low estimated period threshold according to the current period.

[0063] For example, when the current time period is a peak time period, it is determined whether there is a target warehouse with an environmental parameter greater than a first peak time threshold in one or more warehouses.

[0064] When the current time period is a flat-valley time period, it is determined whether there is a target warehouse with an environmental parameter greater than a first flat-valley time period threshold in one or more warehouses.

[0065] When the current period is a valley period, it is determined whether there is a target warehouse with environmental parameters greater than a first valley period threshold in one or more warehouses.

[0066] For example, in order to save electricity, the storage temperature of a certain vegetable is 8 to 10 degrees, 10 degrees during peak hours, and 8 degrees during trough hours. That is, a lower storage temperature is set during trough hours, and a higher storage temperature is set during peak hours. The lower temperature environment created during trough hours will be partially migrated to the higher temperature environment created during peak hours, which can save electricity to a certain extent.

[0067] Taking into account that the preset first thresholds are different for different time periods, distinguishing the first thresholds for peak hours, valley hours, and trough hours can obtain a more accurate first threshold and achieve accurate intelligent regulation. In addition, by setting a relatively small first threshold for the trough period and a relatively large first threshold for the peak period, the lower temperature environment in the trough period can be partially migrated to the higher temperature environment in the peak period, which helps the overall cold storage air conditioning system to achieve high efficiency and energy saving to a certain extent.

[0068] In step 130, when there is a target warehouse, the number of compressors turned on in the cold storage air-conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air-conditioning system are adjusted according to the operating parameters and environmental parameters, and the fan parameters corresponding to the target warehouse are adjusted, wherein the parameters of the refrigeration unit include the condensing temperature and the evaporating temperature.

[0069] In some embodiments, one or more warehouses correspond to a refrigeration unit, and different warehouses correspond to different fans.

[0070] In some embodiments, the fan parameter of the target warehouse includes at least one of a rotation speed of the fan and a startup duration of the fan.

[0071] In the above embodiment, by collecting the operating parameters of the cold storage air conditioning system and the environmental parameters of one or more warehouses in the cold storage, it is convenient to intelligently control the temperature of each warehouse according to the operating parameters and environmental parameters. By determining whether there is a target warehouse with environmental parameters greater than the first threshold in one or more warehouses according to the environmental parameters of one or more warehouses, the target warehouse is screened from one or more warehouses. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system according to the collected operating parameters and environmental parameters, and adjusting the fan parameters corresponding to the target warehouse, the temperature of each warehouse in the cold storage is intelligently controlled when the environment and demand of the cold storage are in a constantly changing state. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system, and adjusting the fan parameters corresponding to the target warehouse, the intelligent control between each warehouse in the cold storage is realized, which is both independent and coordinated, and helps the cold storage air conditioning system as a whole to achieve high efficiency and energy saving.

[0072] In some embodiments, the adjustable parameters also include the mode of the cold storage air conditioning system, the purpose of the cold room of each warehouse in the cold storage, the number of refrigeration units, the number of evaporative condensers, the number of warehouses, peak period, flat period, valley period, peak period temperature control upper limit, peak period temperature control lower limit, flat valley period temperature control upper limit, flat valley period temperature control lower limit, valley period temperature control upper limit, valley period temperature control lower limit, food preservation stage, food preservation stage temperature setting value, compressor start or stop, fan start or stop and cold storage start or stop. Among them, the cold room purpose is output, and the user can set the parameter according to the actual situation, so that when a cold storage changes the storage function later, the user can dynamically change the cold room purpose of a warehouse according to actual use.

[0073] In some embodiments, the evaporation temperature setting value and the condensation temperature setting value are related to the room temperature, and the evaporation temperature setting value is usually set to be a certain value lower than the room temperature to ensure an effective cooling effect. For example, if the room temperature is 30°C, the evaporation temperature may be set to about 20°C.

[0074] The condensing temperature setpoint is usually set a certain value higher than the warehouse temperature to ensure that the condenser can effectively dissipate heat. For example, if the warehouse temperature is 30°C, the condensing temperature may be set to around 40°C.

[0075] In some embodiments, when the operating parameters include the number of compressors currently running in the cold storage air conditioning system, and the environmental parameters include the warehouse temperature and the warehouse temperature drop rate, adjusting the number of compressors turned on in the cold storage air conditioning system includes: turning on a first number of compressors; and adjusting the number of compressors turned on according to the warehouse temperature and the warehouse temperature drop rate of the target warehouse.

[0076] For example, the first number may be 1, and the warehouse temperature drop rate may be determined according to the ratio between the temperature difference and the time difference.

[0077] The target warehouse is initially cooled by turning on the first number of compressors, and the number of compressors turned on is subsequently adjusted according to the current warehouse temperature and the warehouse temperature drop rate of the target warehouse. The degree of cooling the target warehouse is controlled by adjusting the number of compressors turned on. By first performing initial cooling and then controlling the degree of cooling, the timeliness and effectiveness of intelligent control are guaranteed.

[0078] In some embodiments, first, the temperature drop rate of the target warehouse is monitored (for example, once every specified time); then, when the temperature drop rate of the target warehouse is less than or equal to the second threshold, it is determined whether the warehouse temperature of the target warehouse is less than or equal to the third threshold; finally, when the warehouse temperature of the target warehouse is greater than the third threshold, the number of compressors turned on is increased. For example, the third threshold is the lower limit of the temperature of the target warehouse.

[0079] By monitoring the temperature drop rate of the target warehouse to obtain the refrigeration capacity of the target warehouse, it is helpful to obtain the refrigeration capacity of the target warehouse. The number of compressors turned on is adjusted in combination with the refrigeration capacity of the target warehouse and the warehouse temperature, taking into account the influencing factors of temperature at different levels, and improving the accuracy of intelligent control. By increasing the number of compressors turned on to control the temperature of the target warehouse, an intuitive control method is provided to ensure the efficiency of intelligent control.

[0080] In other words, if the warehouse temperature is high and the warehouse temperature drop rate is lower than the second threshold, it means that the cooling capacity of the air conditioner is insufficient, and it is necessary to adjust parameters such as the unit evaporation temperature or the number of compressors.

[0081] For example, increasing the number of compressors to be turned on may be done one by one.

[0082] By increasing the number of compressors turned on one by one, the risk of wasting energy resources caused by temporarily increasing the number of compressors turned on is reduced, which helps the cold storage air-conditioning system to achieve high efficiency and energy saving as a whole.

[0083] In addition, if the room temperature of the target room is less than or equal to the third threshold, the start-up number of the compressors is maintained.

[0084] If the warehouse temperature is less than or equal to the third threshold (lower temperature limit), it means that the warehouse temperature of the target warehouse has met the demand. At this time, there is no need to increase the number of compressors turned on. That is, by judging whether the warehouse temperature of the target warehouse meets the demand, it is determined whether it is necessary to increase the number of compressors turned on, which reduces the risk of energy waste caused by too many compressors turned on, and helps the cold storage air-conditioning system to achieve high efficiency and energy saving as a whole.

[0085] In some embodiments, the third threshold value of each warehouse is determined according to at least one of the cold room usage and storage category of the corresponding warehouse.

[0086] By determining the third threshold of each warehouse according to at least one of the cold room purpose and storage category of the corresponding warehouse, different third thresholds are corresponding to different cold room purposes and storage categories, which is more in line with the needs of real life, obtains a more accurate third threshold, and realizes accurate intelligent regulation.

[0087] In some embodiments, the third threshold includes a third peak period threshold, a third valley period threshold or a third low valley period threshold. The third threshold is determined to be the third peak period threshold, the third valley period threshold or the third low underestimate period threshold according to the current period.

[0088] For example, when the current period is a peak period, it is determined whether the warehouse temperature of the target warehouse is less than or equal to the third peak period threshold.

[0089] When the current period is a flat-valley period, it is determined whether the warehouse temperature of the target warehouse is less than or equal to the third flat-valley period threshold.

[0090] When the current period is a valley period, it is determined whether the temperature of the target warehouse is less than or equal to the third valley period threshold.

[0091] Taking into account that the preset third threshold is different for different time periods, the first thresholds for distinguishing peak time periods, valley time periods and trough time periods can obtain a more accurate third threshold and achieve accurate intelligent regulation. In addition, by setting a relatively small third threshold in the trough period and a relatively large third threshold in the peak period, the lower temperature environment in the trough period can be partially transferred to the higher temperature environment in the peak period, which helps the overall cold storage air conditioning system to achieve high efficiency and energy saving to a certain extent.

[0092] In some embodiments, when the operating parameters include the current condensing temperature and evaporating temperature of the refrigeration unit, and the environmental parameters include the warehouse temperature drop rate, adjusting the parameters of the refrigeration unit of the cold storage air-conditioning system includes: adjusting the condensing temperature and evaporating temperature of the refrigeration unit according to the warehouse temperature drop rate of the target warehouse.

[0093] By directly regulating the condensing temperature and evaporating temperature of the refrigeration unit according to the target warehouse's temperature drop rate, or regulating the condensing temperature and evaporating temperature of the refrigeration unit based on the target warehouse's temperature drop rate and the number of compressors turned on, the condensing temperature and evaporating temperature of the refrigeration unit are dynamically regulated as the target warehouse's temperature drop rate changes, that is, the temperature of the target warehouse is intelligently regulated. In addition, by combining the regulation of the number of compressors turned on and the regulation of the condensing temperature and evaporating temperature of the refrigeration unit, when the warehouse temperature meets the demand by regulating the number of compressors turned on, it is only necessary to regulate the condensing temperature and the positive temperature to adjust the warehouse temperature drop rate, without increasing the number of compressors turned on, reducing the risk of energy waste caused by too many compressors turned on, and helping the cold storage air conditioning system to achieve high efficiency and energy saving as a whole.

[0094] In some embodiments, when the warehouse temperature drop rate is less than or equal to the second threshold and greater than the fourth threshold, the condensing temperature of the refrigeration unit is increased and the evaporation temperature of the refrigeration unit is decreased.

[0095] When the warehouse temperature drop rate is less than or equal to the second threshold and greater than the fourth threshold, the condensing temperature of the refrigeration unit is increased and the evaporation temperature of the refrigeration unit is reduced for regulation. This reduces the risk of failing to achieve a good refrigeration effect by only regulating the condensing temperature and evaporation temperature due to the warehouse temperature rate being too small (i.e., less than or equal to the fourth threshold), thereby ensuring the stability of intelligent regulation.

[0096] In some embodiments, when the operating parameters include the current condensing temperature and evaporating temperature of the refrigeration unit, and the environmental parameters include the warehouse temperature drop rate and the warehouse temperature. When the warehouse temperature drop rate is less than or equal to the second threshold and greater than the fourth threshold, the condensing temperature of the refrigeration unit is increased, and the evaporating temperature of the refrigeration unit is decreased; it is determined whether there is a warehouse with a warehouse temperature greater than the third threshold in one or more warehouses; if there is a warehouse with a warehouse temperature greater than the third threshold, the condensing temperature and evaporating temperature of the refrigeration unit are readjusted.

[0097] On the basis of adjusting the condensing temperature and evaporating temperature, by judging whether there is a warehouse with a temperature greater than the third threshold, it is determined whether the warehouse temperature of one or more warehouses in the cold storage has met the demand through intelligent regulation, which is equivalent to a comprehensive screening of one or more warehouses in the cold storage, reducing the risk of affecting the overall refrigeration effect of the cold storage due to the warehouse temperature of a warehouse in the cold storage being greater than the third threshold, and ensuring the stability of intelligent regulation. For warehouses with a warehouse temperature greater than the third threshold, the condensing temperature and evaporating temperature of the refrigeration unit are directly readjusted to make the warehouse temperature less than or equal to the third threshold, realizing intelligent regulation of the warehouse temperature.

[0098] In addition, if there is no storeroom whose storeroom temperature is greater than the third threshold, the compressor is turned off.

[0099] When the warehouse temperatures of all warehouses are greater than the third threshold, the compressors are shut down in time, which reduces the power consumption of the turned-on compressors and helps the cold storage air-conditioning system as a whole achieve high efficiency and energy saving.

[0100] In some embodiments, the third threshold includes a third peak period threshold, a third valley period threshold or a third low period threshold. According to the current period, it is determined whether the third threshold includes the third peak period threshold, the third valley period threshold or the third low period threshold.

[0101] For example, when the current period is a peak period, it is determined whether there is one or more warehouses whose temperature is greater than the third peak period threshold.

[0102] When the current period is a flat-valley period, it is determined whether there is a warehouse temperature in one or more warehouses that is greater than a third flat-valley period threshold.

[0103] When the current period is a valley period, it is determined whether there is one or more warehouses with a warehouse temperature greater than a third valley period threshold.

[0104] Taking into account that the preset third threshold is different for different time periods, the first thresholds for distinguishing peak time periods, valley time periods and trough time periods can obtain a more accurate third threshold and achieve accurate intelligent regulation. In addition, by setting a relatively small third threshold in the trough period and a relatively large third threshold in the peak period, the lower temperature environment in the trough period can be partially transferred to the higher temperature environment in the peak period, which helps the overall cold storage air conditioning system to achieve high efficiency and energy saving to a certain extent.

[0105] In some embodiments, if there is a fault in the cold storage air conditioning system (eg, equipment failure, sensor failure), an alarm signal is output.

[0106] By outputting an alarm signal when a fault occurs in the cold storage air conditioning system, it helps users to deal with the abnormalities caused by the fault in a timely manner, thus ensuring the stability of the cold storage air conditioning system during the refrigeration process.

[0107] In some embodiments, at least one of the power consumption of the cold storage air conditioning system, the power consumption of the fan, and the power consumption of the refrigeration unit is counted.

[0108] By counting the power consumption of the cold storage air-conditioning system, the power consumption of the fan and the power consumption of the refrigeration unit, it is helpful to show the user the change process of power consumption during the intelligent regulation process, so as to show the energy-saving effect of the intelligent regulation process to the user, facilitate the user to intervene in the regulation, and reduce the risk of serious consequences caused by faults in the intelligent regulation process.

[0109] Figure 2 Schematic diagrams showing some embodiments of the application of the cold storage air conditioning system of the present disclosure.

[0110] like Figure 2 As shown, the cold storage air conditioning system includes an evaporative condenser 20, a screw parallel unit 21, and fans 22-1, 22-2, 22-3, and 22-4. Each fan corresponds to a warehouse. In addition, the screw parallel unit 21 exhausts air to the evaporative condenser 20, and the evaporative condenser 20 outputs liquid refrigerant to the screw parallel unit 21. The screw parallel unit 21 is connected to the fans 22-1, 22-2, 22-3, and 22-4 through a thermal fluorine pipe 24. The screw parallel unit 21 supplies liquid 25 to the fans 22-1, 22-2, 22-3, and 22-4 through a thermal expansion valve 27. The fans 22-1, 22-2, 22-3, and 22-4 are connected to the screw parallel unit 21 through a defrost liquid return pipe 26. Among them, a screw parallel unit is responsible for the refrigeration of one or more warehouses.

[0111] Figure 3 Schematic diagrams showing some embodiments of the control device of the present disclosure.

[0112] like Figure 3 As shown, the control device 30 includes a collection unit 31 , a determination unit 32 and an adjustment unit 33 .

[0113] For example, the control device may be a controller.

[0114] The collection unit 31 is configured to collect operating parameters of the cold storage air conditioning system and environmental parameters of one or more storage rooms in the cold storage.

[0115] For example, the acquisition unit 31 may be implemented by a plurality of sensors.

[0116] The determination unit 32 is configured to determine whether there is a target warehouse with an environmental parameter greater than a first threshold value in one or more warehouses.

[0117] In some embodiments, the first threshold includes a first peak period threshold, a first valley period threshold or a first valley period threshold, and the determination unit 32 is further configured to, when the current period is a peak period, determine whether there is a target warehouse with environmental parameters greater than the first peak period threshold in one or more warehouses; when the current period is a valley period, determine whether there is a target warehouse with environmental parameters greater than the first valley period threshold in one or more warehouses; when the current period is a valley period, determine whether there is a target warehouse with environmental parameters greater than the first valley period threshold in one or more warehouses.

[0118] In some embodiments, the first threshold of each warehouse is determined according to at least one of the cold room usage and storage category of the corresponding warehouse.

[0119] In some embodiments, the control device 30 also includes an in-warehouse temperature analysis unit, and the collection unit 31 can transmit part of the collected data to the in-warehouse temperature and humidity analysis unit so that the in-warehouse temperature and humidity analysis unit can analyze the first threshold and the third threshold.

[0120] In some embodiments, the control device 30 also includes a statistical unit, and the collection unit 31 can also transmit part of the collected data to the statistical unit so that the statistical unit can count at least one of the power consumption of the cold storage air-conditioning system, the power consumption of the fan, and the power consumption of the refrigeration unit.

[0121] The adjustment unit 33 is configured to adjust the number of compressors turned on and at least one of the parameters of the refrigeration unit of the cold storage air-conditioning system according to the operating parameters and environmental parameters when there is a target warehouse, and adjust the fan parameters corresponding to the target warehouse, wherein the parameters of the refrigeration unit include condensing temperature and evaporating temperature.

[0122] In some embodiments, the operating parameters include the number of compressors currently running in the cold storage air-conditioning system, the environmental parameters include the warehouse temperature and the warehouse temperature drop rate, and the adjustment unit 43 is also configured to turn on a first number of compressors; and adjust the number of compressors turned on according to the warehouse temperature and the warehouse temperature drop rate of the target warehouse.

[0123] In some embodiments, the adjustment unit 33 is also configured to monitor the warehouse temperature drop rate of the target warehouse; when the warehouse temperature drop rate is less than or equal to the second threshold, determine whether the warehouse temperature of the target warehouse is less than or equal to the third threshold; when the warehouse temperature of the target warehouse is greater than the third threshold, increase the number of compressors turned on.

[0124] In some embodiments, the third threshold value of each warehouse is determined according to at least one of the cold room usage and storage category of the corresponding warehouse.

[0125] In some embodiments, the third threshold includes a third peak period threshold, a third valley period threshold or a third valley period threshold, and the adjustment unit 33 is also configured to determine whether the warehouse temperature of the target warehouse is less than or equal to the third peak period threshold when the current period is a peak period; determine whether the warehouse temperature of the target warehouse is less than or equal to the third valley period threshold when the current period is a valley period; and determine whether the warehouse temperature of the target warehouse is less than or equal to the third valley period threshold when the current period is a valley period.

[0126] In some embodiments, the adjustment unit 33 is further configured to maintain the number of compressors turned on when the temperature of the target storeroom is less than or equal to a third threshold.

[0127] In some embodiments, the operating parameters include the current condensing temperature and evaporating temperature of the refrigeration unit, and the environmental parameters include the warehouse temperature drop rate. The adjustment unit 33 is also configured to adjust the condensing temperature and evaporating temperature of the refrigeration unit according to the warehouse temperature drop rate of the target warehouse.

[0128] In some embodiments, the adjustment unit 33 is further configured to increase the condensing temperature of the refrigeration unit and decrease the evaporation temperature of the refrigeration unit when the warehouse temperature drop rate is less than or equal to the second threshold and greater than the fourth threshold.

[0129] In some embodiments, the environmental parameters also include warehouse temperature, and the adjustment unit 33 is further configured to determine whether there is one or more warehouses with a warehouse temperature greater than a third threshold; if there is a warehouse with a warehouse temperature greater than the third threshold, the condensing temperature and evaporating temperature of the refrigeration unit are readjusted.

[0130] In some embodiments, the adjustment unit 33 is further adjusted to turn off the compressor when there is no storeroom with a storeroom temperature greater than a third threshold.

[0131] In some embodiments, the control device 30 further includes an alarm unit configured to output an alarm signal when a fault occurs in the cold storage air conditioning system.

[0132] In the above embodiment, by collecting the operating parameters of the cold storage air conditioning system and the environmental parameters of one or more warehouses in the cold storage, it is convenient to intelligently control the temperature of each warehouse according to the operating parameters and environmental parameters. By determining whether there is a target warehouse with environmental parameters greater than the first threshold in one or more warehouses according to the environmental parameters of one or more warehouses, the target warehouse is screened from one or more warehouses. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system according to the collected operating parameters and environmental parameters, and adjusting the fan parameters corresponding to the target warehouse, the temperature of each warehouse in the cold storage is intelligently controlled when the environment and demand of the cold storage are in a constantly changing state. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system, and adjusting the fan parameters corresponding to the target warehouse, the intelligent control between each warehouse in the cold storage is realized, which is both independent and coordinated, and helps the cold storage air conditioning system as a whole to achieve high efficiency and energy saving.

[0133] Figure 4 Schematic diagrams showing other embodiments of the control device disclosed herein.

[0134] like Figure 4 As shown, the control device 40 of this embodiment includes: a memory 41 and a processor 42 coupled to the memory 41 , and the processor 42 is configured to execute the control method in any one of the aforementioned embodiments based on the instructions stored in the memory 41 .

[0135] The memory 41 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory may store, for example, an operating system, an application program, a boot loader, and other programs.

[0136] The control device 40 may also include an input / output interface 43, a network interface 44, a storage interface 45, etc. These interfaces 43, 44, 45, the memory 41, and the processor 42 may be connected, for example, via a bus 46. The input / output interface 43 provides a connection interface for input / output devices such as a display, a mouse, a keyboard, a touch screen, a microphone, and a speaker. The network interface 44 provides a connection interface for various networked devices. The storage interface 45 provides a connection interface for external storage devices such as an SD card and a USB flash drive.

[0137] In the above embodiment, by collecting the operating parameters of the cold storage air conditioning system and the environmental parameters of one or more warehouses in the cold storage, it is convenient to intelligently control the temperature of each warehouse according to the operating parameters and environmental parameters. By determining whether there is a target warehouse with environmental parameters greater than the first threshold in one or more warehouses according to the environmental parameters of one or more warehouses, the target warehouse is screened from one or more warehouses. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system according to the collected operating parameters and environmental parameters, and adjusting the fan parameters corresponding to the target warehouse, the temperature of each warehouse in the cold storage is intelligently controlled when the environment and demand of the cold storage are in a constantly changing state. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system, and adjusting the fan parameters corresponding to the target warehouse, the intelligent control between each warehouse in the cold storage is realized, which is both independent and coordinated, and helps the cold storage air conditioning system as a whole to achieve high efficiency and energy saving.

[0138] Figure 5 Schematic diagrams showing some embodiments of the cold storage air conditioning system of the present disclosure.

[0139] like Figure 5 As shown, the cold storage air conditioning system 50 includes a control device 51 in any one of the above embodiments.

[0140] In the above embodiment, by collecting the operating parameters of the cold storage air conditioning system and the environmental parameters of one or more warehouses in the cold storage, it is convenient to intelligently control the temperature of each warehouse according to the operating parameters and environmental parameters. By determining whether there is a target warehouse with environmental parameters greater than the first threshold in one or more warehouses according to the environmental parameters of one or more warehouses, the target warehouse is screened from one or more warehouses. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system according to the collected operating parameters and environmental parameters, and adjusting the fan parameters corresponding to the target warehouse, the temperature of each warehouse in the cold storage is intelligently controlled when the environment and demand of the cold storage are in a constantly changing state. By adjusting the number of compressors turned on in the cold storage air conditioning system and at least one of the parameters of the refrigeration unit of the cold storage air conditioning system, and adjusting the fan parameters corresponding to the target warehouse, the intelligent control between each warehouse in the cold storage is realized, which is both independent and coordinated, and helps the cold storage air conditioning system as a whole to achieve high efficiency and energy saving.

[0141] Figure 6 Schematic diagrams showing other embodiments of the control method disclosed herein.

[0142] like Figure 6 As shown, the control method includes steps 610 to 680.

[0143] In step 610, the cold room usage of each warehouse in the cold storage is obtained.

[0144] In step 620, the storage categories of each warehouse in the cold storage are obtained.

[0145] In step 630, the upper and lower limits of the temperature during the peak, valley and normal periods and the corresponding categories of each warehouse are obtained.

[0146] In step 640, the temperature and humidity parameters of each warehouse are obtained.

[0147] In step 650, based on the obtained upper and lower limits of temperature and the temperature of each warehouse, energy consumption is counted and energy-saving strategy analysis is performed to obtain an energy-saving strategy.

[0148] In step 660, the number of compressor operations is adjusted according to the energy saving strategy.

[0149] In step 670, according to the energy-saving strategy, the associated control of the condensate pump and the fan is adjusted, for example, the opening, closing, frequency increase or decrease of the condensate pump and the fan are adjusted.

[0150] In step 680, the condensing temperature and the evaporating temperature are regulated according to the energy-saving strategy.

[0151] In the above embodiment, by adjusting the number of compressors turned on in the cold storage air conditioning system and the parameters of the refrigeration unit of the cold storage air conditioning system, and adjusting the fan parameters corresponding to the target warehouse, the intelligent regulation between the warehouses in the cold storage is realized, which is both independent and coordinated, and helps the cold storage air conditioning system as a whole to achieve high efficiency and energy saving. In addition, considering that the cold rooms of different warehouses have different uses, different warehouses store different categories of items, and the differences in peak, flat and valley time periods, therefore, the upper and lower temperature limits corresponding to different cold room uses, different storage categories and different times are different, and more accurate upper and lower temperature limits are obtained, which improves the accuracy of intelligent regulation.

[0152] Figure 7 Schematic diagrams showing some further embodiments of the control method disclosed herein.

[0153] like Figure 7 As shown, the control method includes steps 710 to 727 .

[0154] In step 710, control begins.

[0155] In step 711, environmental data (environmental parameters), such as temperature, of each room in the cold storage are collected.

[0156] In step 712, it is determined whether the temperature of a certain warehouse has reached the upper temperature limit corresponding to the warehouse (equivalent to the first threshold).

[0157] If the temperature of a certain room reaches the upper temperature limit corresponding to the room, step 713 is directly executed; if the temperature of no room in the cold storage reaches the upper temperature limit, step 712 is re-executed.

[0158] In step 713, it is determined whether the cold storage air conditioning system is normal.

[0159] If the cold storage air conditioning system is abnormal, execute step 714; if the cold storage air conditioning system is normal, directly execute step 715.

[0160] In step 714, an alarm is issued for the faulty room in the cold storage.

[0161] In step 715, the fan of the warehouse whose temperature reaches the upper temperature limit is turned on.

[0162] In some embodiments, if the fan of the warehouse whose temperature reaches the upper temperature limit is in an off state, step 715 is executed, that is, the fan of the warehouse whose temperature reaches the upper temperature limit is turned on.

[0163] In step 716, the number of compressors to be turned on is set to 1, and the compressor is turned on.

[0164] In step 717, the temperature drop rate V of the warehouse whose temperature reaches the upper temperature limit is calculated every t1 time.

[0165] In step 718, it is determined whether the current warehouse temperature drop rate V is less than V1 (equivalent to the second threshold).

[0166] If V is less than V1, then directly execute step 719; if V is greater than or equal to V1, then re-execute step 717.

[0167] In step 719, it is determined whether the temperature of the warehouse whose temperature drop rate V is less than V1 reaches the corresponding lower temperature limit (equivalent to the third threshold value).

[0168] If the temperature of the warehouse whose temperature drop rate V is less than V1 reaches the corresponding lower temperature limit, execute step 721; if the temperature of the warehouse whose temperature drop rate V is less than V1 does not reach the corresponding lower temperature limit, execute step 720.

[0169] In step 720, the number of activated compressors is reset, that is, the number of activated compressors is increased one by one.

[0170] It should be noted that after step 720 is executed, step 722 is directly executed.

[0171] In step 721, the number of compressors turned on is not reset, that is, the current number of compressors turned on is maintained.

[0172] In step 722, it is determined whether the current warehouse temperature drop rate V is less than V1 and greater than V2 (equivalent to the fourth threshold).

[0173] If the temperature drop rate V of the current warehouse satisfies the condition that it is both less than V1 and greater than V2, execute step 723. Otherwise, if the temperature drop rate V of the current warehouse does not satisfy the condition that it is both less than V1 and greater than V2, re-execute step 719.

[0174] In step 723, the condensing temperature and evaporating temperature of the unit are reset after a time interval of t2, that is, the condensing temperature is increased and the evaporating temperature is decreased.

[0175] In step 724, it is determined whether the temperatures of all the rooms in the cold storage have reached the corresponding lower temperature limits.

[0176] If the temperatures of all the warehouses have reached the corresponding lower temperature limit, step 725 is executed. If there is a warehouse among all the warehouses whose temperature has not reached the corresponding lower temperature limit, step 723 is executed again.

[0177] In step 725, the compressor is turned off.

[0178] In step 726, the blower is turned off.

[0179] In step 727, control ends.

[0180] In the above embodiment, by collecting the environmental parameters (such as temperature) of one or more warehouses in the cold storage, it is convenient to intelligently control the temperature of each warehouse according to the environmental parameters. By determining whether there is a target warehouse whose environmental parameters reach the upper limit of the temperature in one or more warehouses according to the environmental parameters of one or more warehouses, the target warehouse is screened from one or more warehouses. By adjusting the number of compressors turned on in the cold storage air-conditioning system and the parameters of the refrigeration unit of the cold storage air-conditioning system according to the collected environmental parameters, and adjusting the fan parameters corresponding to the target warehouse, the temperature of each warehouse in the cold storage is intelligently controlled when the environment and demand of the cold storage are in a constantly changing state. By adjusting the number of compressors turned on in the cold storage air-conditioning system and the parameters of the refrigeration unit of the cold storage air-conditioning system, and adjusting the fan parameters corresponding to the target warehouse, the intelligent control between each warehouse in the cold storage is realized, which is both independent and coordinated, and helps the cold storage air-conditioning system as a whole to achieve high efficiency and energy saving.

[0181] In some embodiments, a computer program product is protected, including a computer program or instruction, which implements the above-mentioned control method when executed by a processor. The computer program product includes a computer instruction carried on a computer-readable medium, and the computer instruction contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer instruction can be downloaded and installed from a network through a communication device, or installed from a storage device, or installed from a ROM. When the computer program is executed by the CPU, the above-mentioned functions defined in the method of the embodiment of the present disclosure are executed.

[0182] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0183] So far, the control method, device, cold storage air conditioning system and computer program product disclosed in the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0184] The method and system of the present disclosure may be implemented in many ways. For example, the method and system of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above, unless otherwise specifically stated. In addition, in some embodiments, the present disclosure may also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present disclosure. Therefore, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

[0185] Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A control method, comprising: Collect the operating parameters of the cold storage air conditioning system and the environmental parameters of one or more rooms in the cold storage; Determine whether there is a target warehouse among the one or more warehouses, wherein the environmental parameter is greater than a first threshold; When the target warehouse exists, the number of compressors turned on and at least one of the parameters of the refrigeration unit of the cold storage air-conditioning system are adjusted according to the operating parameters and the environmental parameters, and the fan parameters corresponding to the target warehouse are adjusted, wherein the parameters of the refrigeration unit include condensing temperature and evaporating temperature.

2. The control method according to claim 1, wherein: The operating parameters include the number of compressors currently running in the cold storage air conditioning system, the environmental parameters include the warehouse temperature and the warehouse temperature drop rate, and the method for adjusting the number of compressors turned on in the cold storage air conditioning system includes: starting a first number of compressors; and The number of compressors turned on is adjusted according to the storeroom temperature and the storeroom temperature drop rate of the target storeroom.

3. The control method according to claim 2, wherein: The step of adjusting the number of compressors to be turned on according to the room temperature and room temperature drop rate of the target room includes: Monitoring the temperature drop rate of the target warehouse; When the warehouse temperature drop rate is less than or equal to the second threshold, determining whether the warehouse temperature of the target warehouse is less than or equal to a third threshold; When the temperature of the target warehouse is greater than the third threshold, the activation number of the compressor is increased.

4. The control method according to claim 3, wherein: The step of adjusting the number of compressors to be turned on according to the room temperature and the room temperature drop rate of the target room further comprises: When the temperature of the target warehouse is less than or equal to the third threshold, the number of compressors turned on is maintained.

5. The control method according to any one of claims 1 to 4, wherein: The operating parameters include the current condensing temperature and evaporating temperature of the refrigeration unit, the environmental parameters include the temperature drop rate of the warehouse, and the parameters for adjusting the refrigeration unit of the cold storage air conditioning system include: According to the temperature drop rate of the target warehouse, the condensing temperature and the evaporating temperature of the refrigeration unit are adjusted.

6. The control method according to claim 5, wherein: The adjusting the condensing temperature and the evaporating temperature of the refrigeration unit comprises: When the temperature drop rate of the storeroom is less than or equal to the second threshold and greater than the fourth threshold, the condensing temperature of the refrigeration unit is increased, and the evaporation temperature of the refrigeration unit is decreased.

7. The control method according to claim 6, wherein: The environmental parameters also include the room temperature, and the parameters for adjusting the refrigeration unit of the cold storage air conditioning system also include: Determine whether there is a warehouse among the one or more warehouses whose warehouse temperature is greater than a third threshold; In the case that there is a warehouse whose temperature is greater than the third threshold, the condensing temperature and the evaporating temperature of the refrigeration unit are readjusted.

8. The control method according to claim 7, wherein: The adjusting of the parameters of the refrigeration unit of the cold storage air conditioning system also includes: When there is no storehouse whose storehouse temperature is greater than the third threshold, the compressor is turned off.

9. The control method according to claim 3 or 4, wherein: The first threshold and the third threshold of each warehouse are determined according to at least one of the cold room usage and storage category of the corresponding warehouse.

10. The control method according to any one of claims 1 to 4, wherein: The first threshold includes a first peak period threshold, a first valley period threshold, or a first valley period threshold, and determining whether there is a target warehouse with an environmental parameter greater than the first threshold among the one or more warehouses includes: When the current time period is a peak time period, determining whether there is a target warehouse among the one or more warehouses whose environmental parameter is greater than the first peak time threshold; When the current time period is a flat or valley time period, determining whether there is a target warehouse among the one or more warehouses whose environmental parameter is greater than the first flat or valley time period threshold; When the current period is a valley period, it is determined whether there is a target warehouse among the one or more warehouses, the environmental parameter of which is greater than the first valley period threshold.

11. The control method according to claim 3 or 4, wherein: The third threshold includes a third peak period threshold, a third valley period threshold, or a third valley period threshold, and determining whether the warehouse temperature of the target warehouse is less than or equal to the third threshold includes: In the case where the current time period is a peak time period, determining whether the warehouse temperature of the target warehouse is less than or equal to the third peak time period threshold; When the current time period is a flat-valley time period, determining whether the temperature of the target warehouse is less than or equal to the third flat-valley time period threshold; When the current period is a valley period, it is determined whether the warehouse temperature of the target warehouse is less than or equal to the third valley period threshold.

12. The control method according to claim 7, wherein: The third threshold includes a third peak period threshold, a third valley period threshold, or a third valley period threshold, and determining whether there is a warehouse with a temperature greater than the third threshold among the one or more warehouses includes: In the case that the current time period is a peak time period, determining whether there is a warehouse among the one or more warehouses whose warehouse temperature is greater than the third peak time period threshold; When the current time period is a flat-valley time period, determining whether there is a warehouse among the one or more warehouses whose warehouse temperature is greater than the third flat-valley time period threshold; When the current period is a valley period, it is determined whether there is a warehouse among the one or more warehouses whose temperature is greater than the third valley period threshold.

13. The control method according to any one of claims 1 to 4, further comprising: When a fault occurs in the cold storage air conditioning system, an alarm signal is output.

14. The control method according to any one of claims 1 to 4, further comprising: At least one of the power consumption of the cold storage air conditioning system, the power consumption of the fan and the power consumption of the refrigeration unit is counted.

15. A control device comprising: A collection unit is configured to collect operating parameters of the cold storage air conditioning system and environmental parameters of one or more storage rooms in the cold storage; A determination unit, configured to determine whether there is a target warehouse among the one or more warehouses, wherein the environmental parameter is greater than a first threshold; The adjustment unit is configured to adjust the number of compressors turned on and at least one of the parameters of the refrigeration unit of the cold storage air-conditioning system according to the operating parameters and the environmental parameters when the target warehouse exists, and adjust the fan parameters corresponding to the target warehouse, wherein the parameters of the refrigeration unit include condensing temperature and evaporating temperature.

16. A control device comprising: Memory; and A processor coupled to the memory, the processor being configured to execute the control method according to any one of claims 1 to 14 based on instructions stored in the memory.

17. A cold storage air conditioning system, comprising: A control device as claimed in claim 15 or 16.

18. A computer-readable storage medium having computer instructions stored thereon, wherein the instructions are executed by a processor to implement the control method according to any one of claims 1 to 14.

19. A computer program product, comprising computer instructions, wherein when the computer instructions are executed by a processor, the control method according to any one of claims 1 to 14 is implemented.

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