Rotating speed determination method and apparatus, and computer readable storage medium

Abstract

Embodiments of the present application provide a rotating speed determination method and apparatus, and a computer readable storage medium, capable of effectively reducing the noise impact of a fan during operation without affecting the cooling capacity. The method comprises: acquiring the ambient temperature and the high pressure at an outlet of a compression apparatus in a target device; and determining an operation rotating speed of a fan in the target device on the basis of the ambient temperature and the high pressure, wherein the operation rotating speed satisfies the cooling requirements of the target device.

Description

Method, device and computer-readable storage medium for determining rotational speed

[0001] This application claims priority to Chinese patent application No. 202310880890.9, filed on July 18, 2023, entitled “Method, device and computer-readable storage medium for determining rotational speed,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the technical field of energy storage systems, and in particular to a method, device, and computer-readable storage medium for determining a rotational speed. Background Art

[0003] With the increasing adoption of new energy sources like solar and wind power, energy storage technology is also developing. Energy storage systems can be applied in a variety of scenarios. However, if they are used in residential areas, office buildings, or near wildlife reserves, local regulations may impose strict requirements on the operating noise level of energy storage systems.

[0004] Liquid cooling units are the main source of noise in energy storage systems. The noise level during operation can be as high as 70dB-95dB, which cannot meet the noise requirements in some scenarios.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a method, device, and computer-readable storage medium for determining a rotational speed, which can effectively reduce the noise impact of a fan during operation without affecting the cooling capacity.

[0007] In a first aspect, a method for determining a rotational speed is provided, the method comprising: obtaining an ambient temperature and a high-pressure pressure at an outlet of a compression device in a target device; and determining an operating rotational speed of a fan in the target device based on the ambient temperature and the high-pressure pressure, wherein the operating rotational speed meets a cooling requirement of the target device.

[0008] In one embodiment of the present application, the fan speed is determined based on the ambient temperature. Specifically, the fan speed corresponds to the ambient temperature, with different ambient temperatures corresponding to different speeds. When the ambient temperature is high, the fan speed is relatively high, while when the ambient temperature is low, the fan speed is relatively low. Because the determined speed meets the cooling requirements, the fan is prevented from operating at a high speed even when the ambient temperature is low, without affecting the cooling capacity. This effectively reduces the noise impact of the fan during operation and improves the customer experience.

[0009] On the other hand, in addition to the ambient temperature, the operating speed of the fan is also determined based on the high-pressure pressure at the outlet of the compression device, that is, the operating speed of the fan is determined based on multiple parameters. Compared with determining the operating speed of the fan based on only one parameter, the operating speed determined based on multiple parameters is closer to the ideal speed of the fan under the current ambient temperature, and can better meet the actual needs of the device connected to the target device (such as a battery).

[0010] In some possible embodiments, determining the rotational speed of the fan in the target device based on the ambient temperature and the high-pressure pressure includes: determining the maximum speed limit value of the fan based on the ambient temperature; determining the operating speed based on the maximum speed limit value and the high-pressure pressure, and the operating speed is less than or equal to the maximum speed limit value.

[0011] The above technical solution sets the upper limit of the fan speed according to the ambient temperature. In this way, even if other parameters change and the other parameters may cause the operating speed of the fan to increase, the maximum operating speed of the fan can only be the upper limit of the speed, thereby meeting the cooling capacity requirements while maintaining low noise operation at different ambient temperatures.

[0012] In some possible embodiments, the method further includes: obtaining the actual water temperature at the outlet of the target device; determining the operating speed based on the maximum speed limit value and the high pressure pressure, including: when the actual water temperature does not meet the preset water temperature, determining the operating speed based on the maximum speed limit value and the high pressure pressure.

[0013] In the process of determining the operating speed based on the maximum speed limit and the high pressure at the compressor outlet, if the actual water temperature does not meet the preset water temperature, for example, if the actual water temperature is greater than the target water temperature, even though the fan operating speed may increase with an increase in the high pressure at the compressor outlet, the maximum speed limit is set, so the fan still operates within the maximum speed limit at the current ambient temperature. For example, in this case, the maximum operating speed of the fan is the maximum speed limit.

[0014] In this way, not only the cooling capacity requirements of the target equipment are met, but the noise level during fan operation is also within the allowable range, effectively achieving the goal of reducing the noise impact during fan operation.

[0015] In some possible embodiments, determining the maximum speed limit value of the fan according to the ambient temperature includes: determining the maximum speed limit value according to the ambient temperature and according to a corresponding relationship between the ambient temperature and an upper speed limit value.

[0016] The above technical solution determines the maximum speed limit value according to the corresponding relationship between the ambient temperature and the speed upper limit value, which is simple to implement and highly efficient.

[0017] In some possible embodiments, obtaining the ambient temperature includes: obtaining the ambient temperature through a temperature sensor, wherein the temperature sensor is disposed at an air inlet of the target device.

[0018] Since the ambient temperature is usually the air inlet temperature of the target device, the temperature sensor can be placed at the air inlet of the target device. In this way, the obtained ambient temperature is more accurate and close to the actual ambient temperature.

[0019] In the second aspect, a device for determining a rotational speed is provided, comprising: an acquisition unit for acquiring the ambient temperature and the high-pressure pressure at the outlet of a compression device in a target device; a determination unit for determining the operating rotational speed of the fan in the target device based on the ambient temperature and the high-pressure pressure, wherein the operating rotational speed meets the cooling requirement of the target device.

[0020] In some possible embodiments, the determination unit is specifically used to: determine the maximum speed limit value of the fan according to the ambient temperature; determine the operating speed based on the maximum speed limit value and the high pressure, and the operating speed is less than or equal to the maximum speed limit value.

[0021] In some possible embodiments, the acquisition unit is further used to: obtain the actual water temperature at the outlet of the target device; the determination unit is specifically used to: determine the operating speed based on the maximum speed limit value and the high pressure when the actual water temperature does not meet the preset water temperature.

[0022] In some possible embodiments, the determining unit is specifically configured to determine the maximum speed limit value according to the ambient temperature and a corresponding relationship between the ambient temperature and the upper speed limit value.

[0023] In some possible embodiments, the acquisition unit is specifically configured to: acquire the ambient temperature through a temperature sensor, wherein the temperature sensor is disposed at an air inlet of the target device.

[0024] In a third aspect, a device for determining a rotational speed is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call the computer program to execute the method in the first aspect or its various implementations.

[0025] In a fourth aspect, a computer-readable storage medium is provided for storing a computer program, which enables a computer to execute the method in the above-mentioned first aspect or its various implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0027] In the drawings, the drawings are not drawn to scale.

[0028] FIG1 is a schematic diagram of a liquid cooling unit according to an embodiment of the present application.

[0029] FIG2 is a schematic flow chart of a method for determining a rotational speed according to an embodiment of the present application.

[0030] FIG3 is a schematic diagram of a corresponding relationship between ambient temperature and upper speed limit value according to an embodiment of the present application.

[0031] FIG4 is a schematic block diagram of a device for determining a rotational speed according to an embodiment of the present application.

[0032] FIG5 is a schematic block diagram of a device for determining a rotational speed according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0034] In the description of this application, it should be noted that, unless otherwise specified, "plurality" means more than two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are merely for the purpose of facilitating the description of this application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting this application. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0036] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0037] With the increasing adoption of new energy sources like solar and wind power, energy storage technology is also developing. Energy storage systems include liquid cooling units, which utilize the high heat capacity of the coolant and its ability to circulate away excess heat from the battery, thereby achieving optimal operating temperatures for the battery.

[0038] In the field of new energy, batteries can serve as the primary power source for electrical devices (such as vehicles, ships, or spacecraft). The battery referred to in the embodiments of this application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in this application may include a battery module or a battery pack.

[0039] The liquid cooling unit includes components such as a compressor, a condenser, and a plate heat exchanger. The fan provides wind to force convection heat exchange between the condenser and the outside air. Figure 1 shows a schematic diagram of the liquid cooling unit. As shown in Figure 1, the liquid cooling unit is connected to the battery to regulate the battery temperature. The liquid cooling unit includes a compressor, a plate heat exchanger, a condenser, a fan, a three-way water valve, a heater, a water pump, and an expansion water tank. Among them, the compressor, plate heat exchanger, condenser, and fan can form a refrigerant circuit, and the three-way water valve, heater, water pump, and expansion water tank can form a coolant circuit.

[0040] When the liquid cooling unit is running, the water pump provides power. The battery-heated coolant flows through the return water inlet into the return water manifold, then enters the evaporator for heat exchange, transferring heat to the refrigerant. The refrigerant evaporates in the plate heat exchanger, absorbs heat, passes through a filter drier, and is compressed by a compressor to become high-pressure refrigerant. The high-pressure refrigerant then enters the air-cooled condenser, where the fan dissipates the absorbed heat into the atmosphere. The condensed, high-pressure, low-temperature refrigerant liquid passes through a throttle valve and returns to low-temperature liquid refrigerant, which then enters the evaporator, completing the refrigeration cycle.

[0041] At the same ambient temperature, the higher the fan speed, the greater the wind speed on the condenser surface, and the better the heat exchange effect. At the same fan speed, the lower the ambient temperature, the better the heat exchange effect of the condenser.

[0042] When energy storage systems are used in residential areas, office buildings, or near wildlife reserves, local regulations impose strict requirements on operating noise levels. Liquid cooling units are the primary source of noise in energy storage systems, generating as much as 70dB-95dB during operation. Therefore, these units may not meet the noise requirements in some scenarios.

[0043] Through research, it was found that under non-high temperature conditions, such as an ambient temperature of 40°C, the actual speed of the fan running at 60% can provide the cooling capacity that meets the energy storage system. Based on this, the embodiment of the present application proposes a method for determining the speed, which determines the operating speed of the fan in the target device by obtaining the ambient temperature. The operating speed of the fan is determined according to the ambient temperature, that is, the operating speed of the fan corresponds to the ambient temperature, and different ambient temperatures correspond to different operating speeds. When the ambient temperature is high, the operating speed of the fan is relatively high, and when the ambient temperature is low, the operating speed of the fan is also low. Since the determined operating speed meets the cooling demand, the situation where the fan still runs at a high speed when the ambient temperature is low is reduced without affecting the cooling capacity, effectively reducing the noise impact of the fan during operation and improving the customer experience.

[0044] A method for determining a rotational speed in an embodiment of the present application may include at least part of the following: first, obtaining an ambient temperature, and then determining an operating rotational speed of a fan in a target device based on the ambient temperature, wherein the operating rotational speed meets a cooling requirement of the target device.

[0045] The target device may be, for example, a liquid cooling unit, which may be connected to a battery.

[0046] In this embodiment, the fan speed is determined based on the ambient temperature. Specifically, the fan speed corresponds to the ambient temperature, with different ambient temperatures corresponding to different speeds. Higher ambient temperatures result in higher fan speeds, while lower ambient temperatures result in lower fan speeds. Because the determined speed meets cooling requirements, the fan's high speed operation at low ambient temperatures is reduced without affecting cooling capacity. This effectively reduces the impact of fan noise during operation and improves the customer experience.

[0047] Among them, the ambient temperature can be obtained in real time.

[0048] Alternatively, the ambient temperature may be acquired periodically, for example, every 5 ms or 10 ms.

[0049] Alternatively, the ambient temperature may be obtained randomly.

[0050] Alternatively, considering that the ambient temperature usually does not change suddenly within a period of time, the ambient temperature may be acquired only once.

[0051] Ambient temperature can be obtained using a temperature sensor. Since ambient temperature is typically the temperature of the air entering the target device, the temperature sensor can be placed at the air inlet of the target device. This allows for a more accurate and closer reading of the ambient temperature.

[0052] In addition to the ambient temperature, other parameters may also be obtained, and the operating speed of the fan in the target device may be determined based on the ambient temperature and other parameters. For example, the other parameter may be the high pressure at the outlet of the compression device in the target device.

[0053] Fig. 2 shows a schematic flow chart of another method 200 for determining a rotational speed according to an embodiment of the present application. As shown in Fig. 2 , the method 200 may include at least part of the following contents.

[0054] S210: Acquire the ambient temperature.

[0055] S220: Determine an operating speed of a fan in the target device according to the ambient temperature and the high pressure, wherein the operating speed meets a cooling requirement of the target device.

[0056] The compression device may be, for example, the compressor mentioned above. The high pressure at the outlet of the compression device may also be referred to as the high pressure pressure of the refrigerant at the outlet of the compression device.

[0057] Optionally, the operating speed may be determined at any time based on the ambient temperature and the high pressure at the outlet of the compression device.

[0058] Alternatively, the actual water temperature at the outlet of the target device may be obtained. If the actual water temperature does not meet the preset water temperature, the operating speed may be determined based on the ambient temperature and the high pressure at the outlet of the compression device.

[0059] The actual water temperature at the outlet of the target device can be obtained by a water temperature sensor. Optionally, a water temperature sensor can be set at the inlet and outlet of a device (such as a battery) connected to the target device, or a water temperature sensor can be set only at the inlet or outlet of the device connected to the target device.

[0060] This technical solution, in addition to the ambient temperature, also determines the operating speed of the fan based on the high-pressure pressure at the outlet of the compression device, that is, the operating speed of the fan is determined based on multiple parameters. Compared with determining the operating speed of the fan based on only one parameter, the operating speed determined based on multiple parameters is closer to the ideal speed of the fan under the current ambient temperature, and can better meet the actual needs of devices connected to the target device (such as batteries).

[0061] In some embodiments, S220 may specifically include: determining a maximum speed limit value of the fan according to the ambient temperature, and then determining an operating speed of the fan based on the maximum speed limit value, wherein the operating speed is less than or equal to the maximum speed limit value.

[0062] Among them, the maximum speed limit value can meet the cooling needs of the energy storage system.

[0063] If the maximum fan speed limit is not set, then if other parameters change and these other parameters may cause the fan speed to increase, the fan may run at a higher speed, resulting in higher noise in the target device. This technical solution sets the fan speed upper limit based on the ambient temperature. In this way, even if other parameters change and these other parameters may cause the fan speed to increase, the maximum fan speed can only be the speed upper limit. This allows the fan to maintain low noise in different ambient temperatures while meeting the cooling capacity requirements.

[0064] Optionally, the maximum rotation speed limit value may be determined according to the acquired ambient temperature and the corresponding relationship between the ambient temperature and the upper rotation speed limit value.

[0065] As an example, the correspondence between the ambient temperature and the upper limit of the rotational speed may be pre-configured on the rotational speed determining device, wherein the rotational speed determining device may execute the method 200 .

[0066] For example, the correspondence between the ambient temperature and the upper speed limit value may be pre-configured in the form of a table on the speed determination device. In this way, after obtaining the ambient temperature, the upper speed limit value can be determined by an internal table lookup.

[0067] For another example, as shown in Figure 3, the correspondence between ambient temperature and upper speed limit can be pre-configured in the speed determination device in the form of a correspondence map. As can be seen from Figure 3, when the ambient temperature is -30°C and -20°C, the fan speed limit is 20% of the speed; when the ambient temperature is 0°C, the fan speed limit is 40% of the speed; when the ambient temperature is 20°C, the fan speed limit is 60% of the speed; and when the ambient temperature is 50°C, the fan speed limit is 100% of the speed. If the ambient temperature is 20°C, then according to Figure 3, the maximum speed limit can be determined to be 60% of the speed.

[0068] As another example, the correspondence between the ambient temperature and the upper limit of the rotational speed may be obtained by the rotational speed determining device from other devices, such as from a server.

[0069] It should be noted that the corresponding relationship between the ambient temperature and the upper speed limit may be different for different target devices.

[0070] The above technical solution determines the maximum speed limit value according to the corresponding relationship between the ambient temperature and the speed upper limit value, which is simple to implement and highly efficient.

[0071] After determining the maximum speed limit value of the fan, the fan can be operated at an operating speed lower than or equal to the maximum speed limit value.

[0072] As an example, the operating speed only needs to be lower than or equal to the maximum speed limit. For example, if the maximum speed limit is 60%, then regardless of other factors, the fan only needs to operate at an operating speed lower than or equal to 60%.

[0073] As another example, the operating speed of the fan may be determined based on the maximum speed limit value and other parameters.

[0074] The embodiments of the present application do not specifically limit other parameters. For example, other parameters may include parameters of a device (such as a battery) connected to the target device, such as volume, or may also include the current geographical location of the target device.

[0075] For another example, if the target device includes a compressor, the other parameter may be, for example, the high-pressure pressure at the compressor outlet. When the actual water temperature at the target device outlet does not meet the preset water temperature, for example, when the actual water temperature is greater than the target water temperature, the compressor speed may increase, thereby increasing the high-pressure pressure at the compressor outlet. The fan speed may be linearly adjusted according to the high-pressure pressure at the compressor outlet, i.e., the fan speed may increase simultaneously, causing the noise of the target device to increase.

[0076] The actual water temperature and the preset water temperature may be used as input signals, and a proportional-integral-differential (PID) algorithm may be used to control the speed change of the compression device to achieve variable frequency control.

[0077] Therefore, in the embodiment of the present application, the operating speed can be determined based on the maximum speed limit value and the high pressure at the outlet of the compression device.

[0078] In addition to the maximum speed limit value, the above technical solution also determines the operating speed of the fan based on the high-pressure pressure at the outlet of the compression device, that is, the operating speed of the fan is determined based on multiple parameters. Compared with determining the operating speed of the fan based on only one parameter, the operating speed determined based on multiple parameters is closer to the ideal speed of the fan under the current ambient temperature, and can better meet the actual needs of the device connected to the target device (such as a battery).

[0079] Alternatively, the operating speed may be determined at any time based on the high speed limit value and the high pressure at the outlet of the compression device.

[0080] Alternatively, the actual water temperature at the outlet of the target device may be obtained. If the actual water temperature does not meet the preset water temperature, the operating speed may be determined based on the maximum speed limit value and the high pressure at the outlet of the compression device.

[0081] In the process of determining the operating speed based on the maximum speed limit and the high pressure at the compressor outlet, if the actual water temperature does not meet the preset water temperature, for example, if the actual water temperature is greater than the target water temperature, even though the fan operating speed may increase with an increase in the high pressure at the compressor outlet, the maximum speed limit is set, so the fan still operates within the maximum speed limit at the current ambient temperature. For example, in this case, the maximum operating speed of the fan is the maximum speed limit.

[0082] In this way, not only the cooling capacity requirements of the target equipment are met, but the noise level during fan operation is also within the allowable range, effectively achieving the goal of reducing the noise impact during fan operation.

[0083] In addition to the maximum speed limit, the fan also has a minimum operating speed requirement. Therefore, in the embodiment of the present application, the fan's operating speed can be adjusted based on the ambient temperature, the fan's minimum speed, and the maximum speed limit.

[0084] In the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0085] Moreover, under the premise of no conflict, the various embodiments and / or technical features in the various embodiments described in this application can be arbitrarily combined with each other, and the technical solutions obtained after the combination should also fall within the protection scope of this application.

[0086] The above describes in detail the method for determining the rotational speed of the embodiment of the present application. The following describes the apparatus for determining the rotational speed of the embodiment of the present application. It should be understood that the apparatus for determining the rotational speed of the embodiment of the present application can execute the method for determining the rotational speed of the embodiment of the present application.

[0087] FIG4 shows a schematic block diagram of a rotation speed determination apparatus 400 according to an embodiment of the present application. As shown in FIG4 , the rotation speed determination apparatus 400 may include:

[0088] The acquisition unit 410 is configured to acquire the ambient temperature and the high pressure at the outlet of the compression device in the target device.

[0089] The determination unit 420 is configured to determine an operating speed of a fan in a target device according to the ambient temperature and the high pressure, wherein the operating speed satisfies a cooling requirement of the target device.

[0090] Optionally, in an embodiment of the present application, the determination unit 420 is specifically used to: determine the maximum speed limit value of the fan according to the ambient temperature; determine the operating speed based on the maximum speed limit value and the high pressure, and the operating speed is less than or equal to the maximum speed limit value.

[0091] Optionally, in an embodiment of the present application, the acquisition unit 410 is also used to: obtain the actual water temperature at the outlet of the target device; the determination unit 420 is specifically used to: determine the operating speed based on the maximum speed limit value and the high pressure pressure at the outlet of the compression device when the actual water temperature does not meet the preset water temperature.

[0092] Optionally, in the embodiment of the present application, the determining unit 420 is specifically configured to determine the maximum speed limit value according to the ambient temperature and the corresponding relationship between the ambient temperature and the upper speed limit value.

[0093] Optionally, in an embodiment of the present application, the acquiring unit 410 is specifically configured to acquire the ambient temperature through a temperature sensor, wherein the temperature sensor is disposed at an air inlet of the target device.

[0094] It should be understood that the rotation speed determination device 400 can implement the corresponding operations in the method 200, and for the sake of brevity, they are not described here in detail.

[0095] FIG5 is a schematic diagram of the hardware structure of an apparatus 500 for determining a rotational speed according to an embodiment of the present application. The apparatus 500 for determining a rotational speed includes a memory 501, a processor 502, a communication interface 503, and a bus 504. The memory 501, the processor 502, and the communication interface 503 are connected to each other via the bus 504.

[0096] The memory 501 may be a read-only memory (ROM), a static storage device, or a random access memory (RAM). The memory 501 may store a program. When the program stored in the memory 501 is executed by the processor 502, the processor 502 and the communication interface 503 are used to perform the various steps of the method for determining the rotational speed according to the embodiment of the present application.

[0097] The processor 502 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a graphics processing unit (GPU) or one or more integrated circuits to execute relevant programs to implement the functions required to be performed by the units in the device of the embodiment of the present application, or to execute the method for determining the rotational speed of the embodiment of the present application.

[0098] The processor 502 may also be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the method for determining the rotational speed of the embodiment of the present application may be completed by hardware integrated logic circuits in the processor 502 or software instructions.

[0099] The processor 502 may also be a general-purpose processor, a digital signal processor (DSP), an ASIC, a field programmable gate array (FPGA), or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. It may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor. The software module may be located in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, or the like. The storage medium is located in the memory 501, and the processor 502 reads the information in the memory 501 and, in combination with its hardware, completes the functions required to be performed by the units included in the apparatus 500 for determining the rotational speed of the embodiment of this application, or executes the method for determining the rotational speed of the embodiment of this application.

[0100] The communication interface 503 uses a transceiver device such as, but not limited to, a transceiver to implement communication between the rotation speed determination apparatus 500 and other devices or a communication network.

[0101] The bus 504 may include a path for transmitting information between the various components of the apparatus for determining rotational speed 500 (eg, the memory 501 , the processor 502 , and the communication interface 503 ).

[0102] It should be noted that although the above-described apparatus for determining rotational speed 500 only illustrates a memory, a processor, and a communication interface, those skilled in the art will appreciate that, during implementation, the apparatus for determining rotational speed 500 may also include other components necessary for normal operation. Furthermore, those skilled in the art will appreciate that, depending on specific needs, the apparatus for determining rotational speed 500 may also include hardware components for implementing other additional functions. Furthermore, those skilled in the art will appreciate that the apparatus for determining rotational speed 500 may include only the components necessary to implement the embodiments of the present application, and need not include all of the components shown in FIG. 5 .

[0103] An embodiment of the present application further provides a computer-readable storage medium for storing a computer program, which is used to execute the methods of the various embodiments of the present application described above.

[0104] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0105] An embodiment of the present application further provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the above-mentioned method for determining the rotational speed.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for determining a rotation speed, characterized in that: The method comprises: Obtaining the ambient temperature and the high pressure at the outlet of the compression device in the target equipment; An operating speed of a fan in the target device is determined according to the ambient temperature and the high pressure, and the operating speed meets a cooling demand of the target device.

2. The method according to claim 1, characterized in that Determining the rotation speed of the fan in the target device according to the ambient temperature and the high pressure includes: Determining a maximum speed limit value of the fan according to the ambient temperature; The operating speed is determined based on the maximum speed limit value and the high pressure, and the operating speed is less than or equal to the maximum speed limit value.

3. The method according to claim 2, characterized in that The method further comprises: Obtaining the actual water temperature at the outlet of the target device; The determining the operating speed based on the maximum speed limit value and the high pressure pressure includes: When the actual water temperature does not meet the preset water temperature, the operating speed is determined based on the maximum speed limit value and the high pressure.

4. The method according to claim 2 or 3, characterized in that: Determining the maximum speed limit value of the fan according to the ambient temperature includes: The maximum rotation speed limit value is determined according to the ambient temperature and the corresponding relationship between the ambient temperature and the rotation speed upper limit value.

5. The method according to any one of claims 1 to 4, characterized in that The obtaining of the ambient temperature comprises: The ambient temperature is obtained through a temperature sensor, wherein the temperature sensor is arranged at an air inlet of the target device.

6. A device for determining a rotation speed, characterized in that: include: An acquisition unit, used for acquiring an ambient temperature and a high pressure at an outlet of a compression device in a target device; A determination unit is used to determine the operating speed of the fan in the target device according to the ambient temperature and the high pressure, and the operating speed meets the cooling demand of the target device.

7. The device according to claim 6, characterized in that The determining unit is specifically used for: Determining a maximum speed limit value of the fan according to the ambient temperature; The operating speed is determined based on the maximum speed limit value and the high pressure, and the operating speed is less than or equal to the maximum speed limit value.

8. The device according to claim 7, characterized in that The acquisition unit is also used for: Obtaining the actual water temperature at the outlet of the target device; The determining unit is specifically used for: When the actual water temperature does not meet the preset water temperature, the operating speed is determined based on the maximum speed limit value and the high pressure.

9. The device according to claim 7 or 8, characterized in that The determining unit is specifically used for: The maximum rotation speed limit value is determined according to the ambient temperature and the corresponding relationship between the ambient temperature and the rotation speed upper limit value.

10. The device according to any one of claims 6 to 9, characterized in that The acquisition unit is specifically used for: The ambient temperature is obtained through a temperature sensor, wherein the temperature sensor is arranged at an air inlet of the target device.

11. A device for determining a rotation speed, characterized in that: include: Memory, used to store programs; A processor is used to execute the program stored in the memory. When the program stored in the memory is executed, the processor is used to execute the method for determining the rotation speed according to any one of claims 1 to 5.

12. A computer-readable storage medium, characterized in that: Used to store a computer program, which causes a computer to execute the method for determining a rotational speed according to any one of claims 1 to 5.

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