Control method and device of air conditioner, computer readable storage medium and air conditioner system

Abstract

This application provides a control method, apparatus, computer-readable storage medium, and air conditioning system for an air conditioner. The method includes: a first acquisition step, acquiring the inlet air temperature of multiple fans, wherein the inlet air temperature is the temperature detected by a first temperature sensor corresponding to the fan; a judgment step, judging whether each inlet air temperature is lower than an intermediate temperature, wherein the intermediate temperature is lower than the highest inlet air temperature and higher than the lowest inlet air temperature; and a control step, controlling the fan corresponding to the inlet air temperature to increase its speed when the inlet air temperature is lower than the intermediate temperature, controlling the fan corresponding to the inlet air temperature to decrease its speed when the inlet air temperature is higher than the intermediate temperature, and controlling the fan corresponding to the inlet air temperature to keep its speed constant when the inlet air temperature is equal to the intermediate temperature. This solves the problem of insufficient energy utilization of computer room air conditioning units and reduces the energy consumption of computer room air conditioning.

Description

Technical Field

[0001] This invention relates to the field of air conditioning control technology, and more specifically, to an air conditioning control method, apparatus, computer-readable storage medium, and air conditioning system. Background Technology

[0002] Currently, due to the high heat generated by computer room equipment and its continuous operation year-round, year-round cooling is required. To ensure the stable and reliable operation of the central equipment in the data center, the ambient temperature inside the data center typically needs to be maintained within the range of 26℃ to 30℃. Existing technology usually involves installing precision air conditioning equipment in data centers to meet the temperature and humidity requirements for equipment operation. However, air conditioning equipment has high energy consumption and can cause localized hot spots, which does not conform to the current advocacy of energy conservation and emission reduction. Summary of the Invention

[0003] The main objective of this application is to provide an air conditioning control method, apparatus, computer-readable storage medium, and air conditioning system to at least solve the problem of insufficient energy utilization of air conditioning units in the prior art.

[0004] To achieve the above objectives, according to one aspect of this application, a control method for an air conditioner is provided. The air conditioner includes an indoor heat exchanger, multiple fans, and multiple first temperature sensors. All the first temperature sensors are disposed on the indoor heat exchanger, and each first temperature sensor is correspondingly disposed in the air inlet channel of one of the fans. The method includes: a first acquisition step, acquiring the inlet air temperature of the multiple fans, wherein the inlet air temperature is the detected temperature of the first temperature sensor corresponding to the fan; a judgment step, judging whether each inlet air temperature is lower than an intermediate temperature, wherein the intermediate temperature is lower than the highest inlet air temperature and higher than the lowest inlet air temperature; and a control step, controlling the fan speed corresponding to the inlet air temperature to increase when the inlet air temperature is lower than the intermediate temperature, controlling the fan speed corresponding to the inlet air temperature to decrease when the inlet air temperature is higher than the intermediate temperature, and controlling the fan speed corresponding to the inlet air temperature to remain unchanged when the inlet air temperature is equal to the intermediate temperature.

[0005] Optionally, before determining whether each of the inlet air temperatures is less than the intermediate temperature, the method further includes: if the number of inlet air temperatures is odd, determining the median of the plurality of inlet air temperatures as the intermediate temperature; if the number of inlet air temperatures is even, determining the average of the two medians of the plurality of inlet air temperatures as the intermediate temperature.

[0006] Optionally, after the control step, the method further includes: repeating the first acquisition step, the judgment step, and the control step at least once at a first predetermined time interval until the air conditioner stops.

[0007] Optionally, the air conditioner further includes a flow regulating device and a second temperature sensor. The second temperature sensor is used to detect the actual temperature of the environment where the air conditioner is located, and the flow regulating device is used to regulate the flow rate of the refrigerant. Before acquiring the inlet air temperature of the multiple fans, the method further includes: a second acquisition step, acquiring the indoor ambient temperature, which is the actual temperature of the environment where the air conditioner is located as detected by the second temperature sensor; and an adjustment step, adjusting the opening of the flow regulating device according to the difference between the indoor ambient temperature and the set temperature, so that the indoor ambient temperature reaches the set temperature, which is the target temperature of the environment where the air conditioner is located.

[0008] Optionally, adjusting the opening of the flow regulating device according to the difference between the indoor ambient temperature and the set temperature, so that the indoor ambient temperature reaches the set temperature, includes: increasing the opening of the flow regulating device when the difference between the indoor ambient temperature and the set temperature is greater than 0; decreasing the opening of the flow regulating device when the difference between the indoor ambient temperature and the set temperature is less than 0; and keeping the opening of the flow regulating device constant when the difference between the indoor ambient temperature and the set temperature is equal to 0.

[0009] Optionally, after the adjustment step, the method further includes: repeating the second acquisition step and the adjustment step once at a second predetermined time interval until the air conditioner stops.

[0010] Optionally, before the first acquisition step and the second acquisition step, the method further includes: if the air conditioner is turned on for less than a third predetermined duration, prohibiting the reading of the detected temperatures of the first temperature sensor and the second temperature sensor.

[0011] According to another aspect of this application, an air conditioner control device is provided. The air conditioner includes an indoor heat exchanger, multiple fans, and multiple temperature sensors. All of the multiple temperature sensors are disposed on the indoor heat exchanger, and each temperature sensor is correspondingly disposed in the air inlet channel of one of the fans. The device includes: a first acquisition unit, configured to perform a first acquisition step, acquiring the air inlet temperature of the multiple fans, wherein the air inlet temperature is the detection temperature of the temperature sensor corresponding to the fan; a judgment unit, configured to perform a judgment step, determining whether each air inlet temperature is lower than an intermediate temperature, wherein the intermediate temperature is lower than the highest air inlet temperature and higher than the lowest air inlet temperature; and a control unit, configured to perform a control step, controlling the fan corresponding to the air inlet temperature to increase its rotation speed when the air inlet temperature is lower than the intermediate temperature, controlling the fan corresponding to the air inlet temperature to decrease its rotation speed when the air inlet temperature is higher than the intermediate temperature, and controlling the fan corresponding to the air inlet temperature to remain unchanged when the air inlet temperature is equal to the intermediate temperature.

[0012] According to another aspect of this application, a computer-readable storage medium is provided, the computer-readable storage medium including a stored program, wherein, when the program is executed, it controls the device on which the computer-readable storage medium is located to perform any of the methods described.

[0013] According to another aspect of this application, an air conditioning system is provided, comprising: an air conditioner, one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including methods for performing any one of the methods described.

[0014] Applying the technical solution of this application, in the control method of the air conditioner described above, firstly, a first acquisition step is performed to acquire the inlet air temperature of multiple fans, wherein the inlet air temperature is the temperature detected by the first temperature sensor corresponding to the fan; then, a judgment step is performed to determine whether each of the inlet air temperatures is lower than an intermediate temperature, wherein the intermediate temperature is lower than the highest inlet air temperature and higher than the lowest inlet air temperature; finally, a control step is performed, wherein when the inlet air temperature is lower than the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to increase its speed; when the inlet air temperature is higher than the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to decrease its speed; and when the inlet air temperature is equal to the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to remain unchanged. This method obtains the inlet air temperature of multiple fans and sets an intermediate temperature based on these temperatures. This intermediate temperature is lower than the highest inlet air temperature but higher than the lowest. When some inlet air temperatures are higher than the intermediate temperature, the speed of the corresponding fan is reduced to prevent localized overheating. Conversely, when some inlet air temperatures are lower than the intermediate temperature, the speed of the corresponding fan is increased. This fully utilizes the energy of the refrigerant in the heat exchanger, effectively preventing the fans from performing unnecessary work during operation, improving the efficiency of the computer room air conditioning unit, achieving low cost and high reliability, solving the problem of insufficient energy utilization in computer room air conditioning units, and reducing the energy consumption of computer room air conditioning. Attached Figure Description

[0015] Figure 1 A hardware structure block diagram of a mobile terminal for performing an air conditioning control method according to an embodiment of this application is shown;

[0016] Figure 2 A schematic diagram of an air conditioner provided according to an embodiment of this application is shown;

[0017] Figure 3 A schematic flowchart of an air conditioner control method according to an embodiment of this application is shown;

[0018] Figure 4 A schematic flowchart of another air conditioner control method provided according to an embodiment of this application is shown;

[0019] Figure 5 A structural block diagram of an air conditioner control device according to an embodiment of this application is shown.

[0020] The above figures include the following reference numerals:

[0021] 102. Processor; 104. Memory; 106. Transmission equipment; 108. Input / output device; 10. Indoor heat exchanger; 20. Fan. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] As described in the background section, air conditioning units do not fully utilize energy. To address this technical problem, embodiments of this application provide an air conditioning control method, apparatus, computer-readable storage medium, and air conditioning system.

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] The methods and embodiments provided in this application can be executed on a mobile terminal, computer terminal, or similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for an air conditioner control method according to an embodiment of the present invention. Figure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0028] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the device information display method in this embodiment of the invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. The memory 104 may include high-speed random access memory and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of the aforementioned networks may include wireless networks provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0029] This embodiment provides a control method for an air conditioner that operates on a mobile terminal, computer terminal, or similar computing device, such as... Figure 2 As shown, the air conditioner includes an indoor heat exchanger 10, multiple fans 20, and multiple first temperature sensors. The multiple first temperature sensors are all disposed on the indoor heat exchanger 10, and each of the first temperature sensors is disposed in a corresponding manner in the air inlet channel of the fan 20. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0030] Figure 3 This is a flowchart of an air conditioner control method according to an embodiment of this application. Figure 3 As shown, the method includes the following steps:

[0031] Step S201, the first acquisition step, acquire the inlet air temperatures of multiple said fans, and the said inlet air temperature is the detected temperature of the said first temperature sensor corresponding to the said fan;

[0032] Specifically, take the computer room back panel air conditioner as an example for the said air conditioner. There are multiple fans on the back panel air conditioner. The heat exchanger fins are structurally located behind the fans. Multiple temperature sensors or temperature detectors are installed on the heat exchanger fins, that is, the said first temperature sensors, and the positions correspond to each fan. That is, there is a corresponding temperature sensor or temperature detector in the area of the heat exchanger fins corresponding to each fan; each fan and the temperature sensor are connected to the main controller, and the main controller can read the temperature of the temperature sensor in real time, that is, the inlet air temperature of the said fan.

[0033] Step S202, the judgment step, judge whether each of the said inlet air temperatures is less than the intermediate temperature, and the said intermediate temperature is less than the highest of the said inlet air temperatures and greater than the lowest of the said inlet air temperatures;

[0034] Specifically, the main controller reads the temperatures of each temperature sensor: A1, A2, A3... Set the intermediate temperature A, and the intermediate temperature A is greater than the minimum value of A1, A2, A3... and less than the maximum value of A1, A2, A3...

[0035] Step S203, the control step, when the said inlet air temperature is less than the said intermediate temperature, control the fan corresponding to the said inlet air temperature to increase the rotational speed; when the said inlet air temperature is greater than the said intermediate temperature, control the fan corresponding to the said inlet air temperature to decrease the rotational speed; when the said inlet air temperature is equal to the said intermediate temperature, control the rotational speed of the fan corresponding to the said inlet air temperature to remain unchanged.

[0036] Specifically, the main controller adjusts the rotational speed of the corresponding fan 1 according to the temperature A1 of the temperature sensor: judge that if A1 > A, then decrease the rotational speed of the fan to avoid excessive local temperature; if A1 < A, then increase the rotational speed of the fan to make full use of the energy of the refrigerant in the heat exchanger. If A1 = A, the rotational speed of the fan remains unchanged. The rotational speeds of the other fans are synchronously adjusted in the above manner. In this way, the working efficiency of some fans can be improved, and at the same time, it is avoided that some fans with higher local temperatures do useless work. Each fan operates at the adjusted rotational speed.

[0037] In the above-mentioned air conditioner control method, firstly, a first acquisition step is performed to acquire the inlet air temperature of multiple fans, wherein the inlet air temperature is the temperature detected by the first temperature sensor corresponding to the fan; then, a judgment step is performed to determine whether each of the inlet air temperatures is lower than an intermediate temperature, wherein the intermediate temperature is lower than the highest inlet air temperature and higher than the lowest inlet air temperature; finally, a control step is performed, wherein if the inlet air temperature is lower than the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to increase its speed; if the inlet air temperature is higher than the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to decrease its speed; and if the inlet air temperature is equal to the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to remain unchanged. This method obtains the inlet air temperature of multiple fans and sets an intermediate temperature based on these temperatures. This intermediate temperature is lower than the highest inlet air temperature but higher than the lowest. When some inlet air temperatures are higher than the intermediate temperature, the speed of the corresponding fan is reduced to prevent localized overheating. Conversely, when some inlet air temperatures are lower than the intermediate temperature, the speed of the corresponding fan is increased. This fully utilizes the energy of the refrigerant in the heat exchanger, effectively preventing the fans from performing unnecessary work during operation, improving the efficiency of the computer room air conditioning unit, achieving low cost and high reliability, solving the problem of insufficient energy utilization in computer room air conditioning units, and reducing the energy consumption of computer room air conditioning.

[0038] To further ensure full energy utilization of the computer room air conditioning units, in one optional implementation, before determining whether the aforementioned air inlet temperatures are lower than the intermediate temperature, the method further includes:

[0039] Step S301: When the number of the above-mentioned air inlet temperatures is odd, the median of the multiple above-mentioned air inlet temperatures is determined as the above-mentioned intermediate temperature.

[0040] Step S302: When the number of the above-mentioned air inlet temperatures is even, the average of the two medians of the multiple above-mentioned air inlet temperatures is determined as the above-mentioned intermediate temperature.

[0041] Specifically, the main controller reads the temperatures of each temperature sensor: A1, A2, A3..., which are the inlet air temperatures of the aforementioned fans. The median is taken as the intermediate temperature A. If the number of temperature sensors is even, the average of the two medians is taken. This ensures that nearly half of the fans with inlet air temperatures lower than the intermediate temperature A increase their speed, while nearly half of the fans with inlet air temperatures higher than the intermediate temperature A decrease their speed. This is to fully utilize the energy of the refrigerant in the heat exchanger and avoid excessively high local temperatures.

[0042] To further ensure full energy utilization of the computer room air conditioning units, in one optional implementation, after the above control steps, the method further includes:

[0043] Step S401: Repeat the first acquisition step, the judgment step, and the control step at least once at a first predetermined time interval until the air conditioner stops.

[0044] Specifically, after the unit runs for one time period T1, the main controller reads the temperature of each temperature sensor again, A1, A2, A3..., overwriting the temperature data read the first time; based on the temperature data read the second time, the above steps are executed again to adjust the speed of each fan until the air conditioner stops. After repeating the above steps several times, each fan of the unit can reach a relatively efficient operating state, which can effectively improve heat exchange efficiency, make full use of the energy in the refrigerant in the corresponding heat exchanger area, reduce overall power consumption, and avoid local overheating.

[0045] To match cooling demand, in one optional embodiment, the air conditioner further includes a flow regulating device and a second temperature sensor. The second temperature sensor is used to detect the actual temperature of the environment in which the air conditioner is located, and the flow regulating device is used to regulate the flow rate of the refrigerant. Before obtaining the inlet air temperature of the plurality of fans, the method further includes:

[0046] Step S501, the second acquisition step, acquire the indoor ambient temperature, the indoor ambient temperature being the actual temperature of the environment where the air conditioner is located as detected by the second temperature sensor.

[0047] Step S502, adjustment step: adjust the opening of the flow regulating device according to the difference between the indoor ambient temperature and the set temperature, so that the indoor ambient temperature reaches the set temperature, where the set temperature is the target temperature of the environment where the air conditioner is located.

[0048] Specifically, an ambient temperature sensor or temperature sensor, namely the second temperature sensor mentioned above, is set up. The main controller can read the temperature of the ambient temperature sensor or temperature sensor in real time and control the opening of the throttling device in real time. The throttling device is located at the refrigerant inlet pipe of the heat exchanger and can control the amount of refrigerant entering the heat exchanger, so that the entire air conditioner can reach a relatively balanced state and match the cooling demand.

[0049] In an optional implementation, to match the cooling demand, step S502 above includes:

[0050] Step S5021: When the difference between the indoor ambient temperature and the set temperature is greater than 0, increase the opening of the flow regulating device.

[0051] Step S5022: When the difference between the indoor ambient temperature and the set temperature is less than 0, reduce the opening of the flow regulating device.

[0052] Step S5023, when the difference between the indoor environmental temperature and the set temperature is equal to 0, control the opening degree of the above-mentioned flow regulating device to remain unchanged.

[0053] Specifically, at this time, the main controller reads the value K1 of the environmental temperature sensor and compares it with the preset value K of the set environmental temperature. If K1>K, the opening degree of the throttling device is increased; if K1<K, the opening degree of the throttling device is decreased. If K1 = K, the opening degree remains unchanged, so that the entire air conditioner can reach a relatively balanced state and match the refrigeration demand.

[0054] In order to match the refrigeration demand, in an optional implementation manner, after the above-mentioned adjustment step, the method further includes:

[0055] Step S601, repeat the above-mentioned second acquisition step and the above-mentioned adjustment step once at intervals of the second preset duration until the air conditioner shuts down.

[0056] Specifically, after running for a time period T, the opening degree is adjusted again. After comparing and adjusting the opening degree of the throttling device several times, the entire system can reach a relatively balanced state.

[0057] In order to avoid frequent adjustment, in an optional implementation manner, before the above-mentioned first acquisition step and the above-mentioned second acquisition step, the method further includes:

[0058] Step S701, when the startup duration of the air conditioner is less than the third preset duration, prohibit reading the detection temperatures of the above-mentioned first temperature sensor and the above-mentioned second temperature sensor.

[0059] Specifically, at the initial startup node of the air conditioner, the temperature changes too fast, the adjustment effect is not significant and there will be frequent adjustments. When the refrigeration system of the computer room air conditioner unit runs stably, the main controller reads the detection temperatures of the above-mentioned first temperature sensor and the above-mentioned second temperature sensor to avoid frequent adjustment.

[0060] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the control method of the air conditioner of the present application will be described in detail below with specific embodiments.

[0061] This embodiment relates to a specific control method of an air conditioner, as Figure 4 shown, including the following steps:

[0062] Step S1: Take the backplane air conditioner in the computer room as an example. There are multiple fans on the backplane air conditioner, and the heat exchanger fins are structurally located behind the fans. Multiple temperature sensors or thermosensitive packages are installed on the heat exchanger fins, corresponding to each fan in position, that is, each area of the heat exchanger fins corresponding to a fan has a corresponding temperature sensor or thermosensitive package. At the same time, an ambient temperature sensor or thermosensitive package is set, and each fan and the temperature sensor are connected to the main controller. The main controller can read the temperature of the temperature sensor in real time and control the operating state of each fan. At the same time, it can control the opening degree of the throttling device in real time. The throttling device is located at the refrigerant inlet pipe of the heat exchanger and can control the amount of refrigerant entering the heat exchanger.

[0063] Step S2: When the refrigeration system of the computer room air conditioner unit operates stably: The main controller reads the temperatures of each temperature sensor: A1, A2, A3...; Take the median as the set value A (if the number of temperature sensors is even, take the average of the two medians). The main controller adjusts the speed of the corresponding fan 1 according to the temperature A1 of the temperature sensor: Judge if A1 > A, then reduce the fan speed to avoid excessive local temperature; if A1 < A, then increase the fan speed to make full use of the energy of the refrigerant in the heat exchanger. If A1 = A, the fan speed remains unchanged. The speeds of other fans are adjusted synchronously in the above manner. In this way, the working efficiency of some fans can be improved, and at the same time, it can be avoided that some fans with higher local temperatures do useless work. Each fan operates at the adjusted speed. After the unit operates for a time period T1, the main controller reads the temperatures of each temperature sensor again, A1, A2, A3..., covering the temperature data read for the first time; Execute the above steps according to the temperature data read for the second time and adjust the speeds of each fan again.

[0064] Step S3: After repeating the above steps several times, each fan of the unit can reach a relatively efficient operating state, which can effectively improve the heat exchange efficiency, make full use of the energy in the refrigerant in the corresponding heat exchanger area, reduce the overall power consumption, and avoid the situation of excessive local temperature. At this time, the main controller reads the value K1 of the ambient temperature sensor and compares it with the set ambient temperature preset value K. If K1 > K, then increase the opening degree of the throttling device; if K1 < K, then reduce the opening degree of the throttling device. If K1 = K, the opening degree remains unchanged; After operating for a time period T, adjust the opening degree again. After comparing and adjusting the opening degree of the throttling device several times, the entire system can reach a relatively balanced state.

[0065] It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from here.

[0066] This application also provides an air conditioner control device. It should be noted that the air conditioner control device of this application embodiment can be used to execute the air conditioner control method provided in this application embodiment. This device is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0067] The following describes the air conditioner control device provided in the embodiments of this application, such as... Figure 2 As shown, the air conditioner includes an indoor heat exchanger 10, multiple fans 20, and multiple first temperature sensors. The multiple first temperature sensors are all installed on the indoor heat exchanger 10, and each of the first temperature sensors is installed in the air inlet channel of the fan 20.

[0068] Figure 5 This is a structural block diagram of an air conditioner control device according to an embodiment of this application. Figure 5 As shown, the device includes:

[0069] The first acquisition unit 100 is used to perform a first acquisition step to acquire the inlet air temperature of the plurality of the above-mentioned fans, wherein the inlet air temperature is the detection temperature of the temperature sensor corresponding to the above-mentioned fan.

[0070] Specifically, taking the air conditioner on the back panel of the computer room as an example, the air conditioner has multiple fans. The heat exchanger fins are structurally located behind the fans. Multiple temperature sensors or temperature bulbs are installed on the heat exchanger fins, namely the first temperature sensor mentioned above. The positions correspond to each fan, that is, each fan has a corresponding temperature bulb or temperature sensor in the heat exchanger fin area. Each fan and temperature bulb are connected to the main controller. The main controller can read the temperature of the temperature bulb in real time, that is, the air inlet temperature of the fan mentioned above.

[0071] The judgment unit 200 is used to perform the judgment step to determine whether each of the above-mentioned air inlet temperatures is lower than the intermediate temperature, wherein the intermediate temperature is lower than the highest air inlet temperature and higher than the lowest air inlet temperature.

[0072] Specifically, the main controller reads the temperatures of each temperature sensor: A1, A2, A3..., sets an intermediate temperature A, which is greater than the minimum value among A1, A2, A3... and less than the maximum value among A1, A2, A3...

[0073] The control unit 300 is configured to execute a control step. When the above-mentioned inlet air temperature is less than the above-mentioned intermediate temperature, it controls the above-mentioned inlet air temperature to increase the rotational speed of the corresponding fan. When the above-mentioned inlet air temperature is greater than the above-mentioned intermediate temperature, it controls the above-mentioned inlet air temperature to decrease the rotational speed of the corresponding fan. When the above-mentioned inlet air temperature is equal to the above-mentioned intermediate temperature, it controls the rotational speed of the corresponding fan to remain unchanged.

[0074] Specifically, the main controller adjusts the rotational speed of the corresponding fan 1 according to the temperature A1 of the temperature sensing bulb: It is judged that if A1 > A, the rotational speed of the fan is decreased to avoid excessive local temperature; if A1 < A, the rotational speed of the fan is increased to make full use of the energy of the refrigerant in the heat exchanger. If A1 = A, the rotational speed of the fan remains unchanged. The rotational speeds of other fans are adjusted synchronously in the above manner. In this way, the working efficiency of some fans can be improved, and at the same time, it is avoided that some fans with higher local temperatures do useless work. Each fan operates at the adjusted rotational speed.

[0075] In the control device of the above-mentioned air conditioner, the first acquisition unit is configured to execute a first acquisition step to acquire the inlet air temperatures of multiple above-mentioned fans, and the above-mentioned inlet air temperature is the detected temperature of the above-mentioned first temperature sensor corresponding to the above-mentioned fan; then, the judgment unit is configured to execute a judgment step to judge whether each of the above-mentioned inlet air temperatures is less than the intermediate temperature, and the above-mentioned intermediate temperature is less than the highest of the above-mentioned inlet air temperatures and greater than the lowest of the above-mentioned inlet air temperatures; the control unit is configured to execute a control step. When the above-mentioned inlet air temperature is less than the above-mentioned intermediate temperature, it controls the above-mentioned inlet air temperature to increase the rotational speed of the corresponding fan. When the above-mentioned inlet air temperature is greater than the above-mentioned intermediate temperature, it controls the above-mentioned inlet air temperature to decrease the rotational speed of the corresponding fan. When the above-mentioned inlet air temperature is equal to the above-mentioned intermediate temperature, it controls the rotational speed of the corresponding fan to remain unchanged. This device acquires the inlet air temperatures of multiple fans, sets an intermediate temperature according to the multiple inlet air temperatures, so that the intermediate temperature is less than the highest inlet air temperature and greater than the lowest inlet air temperature. In this way, for some inlet air temperatures higher than the intermediate temperature, the rotational speed of the corresponding fan is decreased to avoid excessive local temperature, and for some inlet air temperatures lower than the intermediate temperature, the rotational speed of the corresponding fan is increased to make full use of the energy of the refrigerant in the heat exchanger. It can effectively avoid the phenomenon of useless work during the operation of the fan, improve the efficiency of the computer room air conditioner unit, achieve low cost and high reliability, solve the problem of insufficient energy utilization of the computer room air conditioner unit, and reduce the energy consumption of the computer room air conditioner.

[0076] In order to further ensure the full utilization of the energy of the computer room air conditioner unit, in an optional implementation manner, the above-mentioned device further includes:

[0077] The first determination unit is configured to, before judging whether each of the above-mentioned inlet air temperatures is less than the intermediate temperature, when the number of the above-mentioned inlet air temperatures is odd, determine the median of the multiple above-mentioned inlet air temperatures as the above-mentioned intermediate temperature;

[0078] The second determining unit is used to determine the average of two medians of the plurality of air inlet temperatures as the intermediate temperature when the number of air inlet temperatures is even.

[0079] Specifically, the main controller reads the temperatures of each temperature sensor: A1, A2, A3..., which are the inlet air temperatures of the aforementioned fans. The median is taken as the intermediate temperature A. If the number of temperature sensors is even, the average of the two medians is taken. This ensures that nearly half of the fans with inlet air temperatures lower than the intermediate temperature A increase their speed, while nearly half of the fans with inlet air temperatures higher than the intermediate temperature A decrease their speed. This is to fully utilize the energy of the refrigerant in the heat exchanger and avoid excessively high local temperatures.

[0080] To further ensure full energy utilization of the computer room air conditioning unit, in one optional embodiment, the above-mentioned device further includes:

[0081] The first repeating unit is used to repeat the first acquisition step, the judgment step, and the control step at least once at a first predetermined time interval after the control step, until the air conditioner stops.

[0082] Specifically, after the unit runs for one time period T1, the main controller reads the temperature of each temperature sensor again, A1, A2, A3..., overwriting the temperature data read the first time; based on the temperature data read the second time, the above steps are executed again to adjust the speed of each fan until the air conditioner stops. After repeating the above steps several times, each fan of the unit can reach a relatively efficient operating state, which can effectively improve heat exchange efficiency, make full use of the energy in the refrigerant in the corresponding heat exchanger area, reduce overall power consumption, and avoid local overheating.

[0083] To match cooling demand, in one optional embodiment, the air conditioner further includes a flow regulating device and a second temperature sensor. The second temperature sensor is used to detect the actual temperature of the environment in which the air conditioner is located. The flow regulating device is used to regulate the flow rate of the refrigerant. The device further includes:

[0084] The second acquisition unit is used to perform a second acquisition step before acquiring the air inlet temperature of the plurality of the above-mentioned fans, to acquire the indoor ambient temperature, wherein the indoor ambient temperature is the actual temperature of the environment where the air conditioner is located as detected by the second temperature sensor.

[0085] The regulating unit is used to perform the regulating steps, adjusting the opening of the flow regulating device according to the difference between the indoor ambient temperature and the set temperature, so that the indoor ambient temperature reaches the set temperature, where the set temperature is the target temperature of the environment where the air conditioner is located.

[0086] Specifically, an environmental temperature sensing bulb or a temperature sensor, i.e., the second temperature sensor mentioned above, is provided. The main controller can read the temperature of the environmental temperature sensing bulb or the temperature sensor in real time and can control the opening degree of the throttling device in real time. The throttling device is located at the refrigerant inlet pipe of the heat exchanger and can control the amount of refrigerant entering the heat exchanger, so that the entire air conditioner can reach a relatively balanced state and match the refrigeration demand.

[0087] In order to match the refrigeration demand, in an optional implementation manner, the above-mentioned adjustment unit includes:

[0088] The first adjustment module is used to increase the opening degree of the above-mentioned flow adjustment device when the difference between the indoor environmental temperature and the set temperature is greater than 0;

[0089] The second adjustment module is used to decrease the opening degree of the above-mentioned flow adjustment device when the difference between the indoor environmental temperature and the set temperature is less than 0;

[0090] The third adjustment module is used to control the opening degree of the above-mentioned flow adjustment device to remain unchanged when the difference between the indoor environmental temperature and the set temperature is equal to 0.

[0091] Specifically, at this time, the main controller reads the value K1 of the environmental temperature sensing bulb and compares it with the preset value K of the set environmental temperature. If K1>K, the opening degree of the throttling device is increased; if K1<K, the opening degree of the throttling device is decreased; if K1 = K, the opening degree remains unchanged, so that the entire air conditioner can reach a relatively balanced state and match the refrigeration demand.

[0092] In order to match the refrigeration demand, in an optional implementation manner, the above-mentioned device further includes:

[0093] The second repetition unit is used to repeat the above-mentioned second acquisition step and the above-mentioned adjustment step once at an interval of the second preset time length after the above-mentioned adjustment step until the air conditioner stops running.

[0094] Specifically, after running for a time period T, the opening degree is adjusted again. After adjusting the opening degree of the throttling device several times, the entire system can reach a relatively balanced state.

[0095] In order to avoid frequent adjustment, in an optional implementation manner, the above-mentioned device further includes:

[0096] The processing unit is used to prohibit reading the detection temperatures of the above-mentioned first temperature sensor and the above-mentioned second temperature sensor when the startup duration of the air conditioner is less than the third preset time length before the above-mentioned first acquisition step and the above-mentioned second acquisition step.

[0097] Specifically, when the air conditioner is first turned on, the temperature changes too quickly, the adjustment effect is not significant, and frequent adjustments will occur. Only after the cooling system of the computer room air conditioning unit has reached a stable operation will the main controller read the detected temperatures from the first and second temperature sensors mentioned above, in order to avoid frequent adjustments.

[0098] The control device for the aforementioned air conditioner includes a processor and a memory. The first acquisition unit, judgment unit, and control unit are all stored as program units in the memory, and the processor executes these program units stored in the memory to achieve the corresponding functions. All of the above modules are located in the same processor; alternatively, the modules may be located in different processors in any combination.

[0099] The processor contains a kernel, which retrieves the corresponding program units from memory. One or more kernels can be configured; adjusting kernel parameters addresses the problem of insufficient energy utilization in computer room air conditioning units.

[0100] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0101] This invention provides a computer-readable storage medium including a stored program, wherein, when the program is executed, it controls the device containing the computer-readable storage medium to perform the air conditioner control method.

[0102] Specifically, the control methods for air conditioning include:

[0103] Step S201, first acquisition step, acquire the inlet air temperature of multiple of the above-mentioned fans, the inlet air temperature is the detection temperature of the first temperature sensor corresponding to the above-mentioned fan;

[0104] Specifically, taking the air conditioner on the back panel of the computer room as an example, the air conditioner has multiple fans. The heat exchanger fins are structurally located behind the fans. Multiple temperature sensors or temperature bulbs are installed on the heat exchanger fins, namely the first temperature sensor mentioned above. The positions correspond to each fan, that is, each fan has a corresponding temperature bulb or temperature sensor in the heat exchanger fin area. Each fan and temperature bulb are connected to the main controller. The main controller can read the temperature of the temperature bulb in real time, that is, the air inlet temperature of the fan mentioned above.

[0105] Step S202, judgment step, determine whether each of the above-mentioned air inlet temperatures is lower than the intermediate temperature, wherein the intermediate temperature is lower than the highest air inlet temperature and higher than the lowest air inlet temperature.

[0106] Specifically, the main controller reads the temperatures of each temperature sensing bulb: A1, A2, A3..., sets an intermediate temperature A, where the intermediate temperature A is greater than the minimum value among A1, A2, A3... and less than the maximum value among A1, A2, A3...

[0107] Step S203, control step. When the above-mentioned inlet air temperature is less than the above-mentioned intermediate temperature, control the above-mentioned inlet air temperature to increase the rotational speed of the corresponding fan. When the above-mentioned inlet air temperature is greater than the above-mentioned intermediate temperature, control the above-mentioned inlet air temperature to decrease the rotational speed of the corresponding fan. When the above-mentioned inlet air temperature is equal to the above-mentioned intermediate temperature, control the rotational speed of the corresponding fan of the above-mentioned inlet air temperature to remain unchanged.

[0108] Specifically, the main controller adjusts the rotational speed of the corresponding fan 1 according to the temperature A1 of the temperature sensing bulb: judge that if A1 > A, then reduce the rotational speed of the fan to avoid excessive local temperature; if A1 < A, then increase the rotational speed of the fan to make full use of the energy of the refrigerant in the heat exchanger. If A1 = A, the rotational speed of the fan remains unchanged. The rotational speeds of the other fans are adjusted synchronously in the above manner. In this way, the working efficiency of some fans can be improved, and at the same time, it is avoided that some fans with higher local temperatures do useless work. Each fan operates at the adjusted rotational speed.

[0109] An embodiment of the present invention provides a processor, and the above-mentioned processor is used to run a program. When the above-mentioned program runs, it executes the control method of the above-mentioned air conditioner.

[0110] Specifically, the control method of the air conditioner includes:

[0111] Step S201, the first acquisition step, acquires the inlet air temperatures of multiple above-mentioned fans, and the above-mentioned inlet air temperature is the detection temperature of the above-mentioned first temperature sensor corresponding to the fan.

[0112] Specifically, taking the computer room backplane air conditioner as an example for the above-mentioned air conditioner, there are multiple fans on the backplane air conditioner. The heat exchanger fins are structurally located behind the fans, and multiple temperature sensing bulbs or temperature sensors, that is, the above-mentioned first temperature sensors, are installed on the heat exchanger fins, and the positions correspond to each fan. That is, there is a corresponding temperature sensing bulb or temperature sensor in the area of the heat exchanger fins corresponding to each fan; each fan and the temperature sensing bulb are connected to the main controller, and the main controller can read the temperature of the temperature sensing bulb in real time, that is, the inlet air temperature of the above-mentioned fan.

[0113] Step S202, judgment step, judges whether each of the above-mentioned inlet air temperatures is less than the intermediate temperature, and the above-mentioned intermediate temperature is less than the highest of the above-mentioned inlet air temperatures and greater than the lowest of the above-mentioned inlet air temperatures.

[0114] Specifically, the main controller reads the temperatures of each temperature sensing bulb: A1, A2, A3..., sets an intermediate temperature A, where the intermediate temperature A is greater than the minimum value among A1, A2, A3... and less than the maximum value among A1, A2, A3...

[0115] Step S203, control step. When the above inlet air temperature is less than the above intermediate temperature, control the above inlet air temperature to increase the rotational speed of the corresponding fan. When the above inlet air temperature is greater than the above intermediate temperature, control the above inlet air temperature to decrease the rotational speed of the corresponding fan. When the above inlet air temperature is equal to the above intermediate temperature, control the rotational speed of the corresponding fan to remain unchanged.

[0116] Specifically, the main controller adjusts the rotational speed of the corresponding fan 1 according to the temperature A1 of the temperature sensing bulb: judge that if A1 > A, then decrease the rotational speed of the fan to avoid excessive local temperature; if A1 < A, then increase the rotational speed of the fan to make full use of the energy of the refrigerant in the heat exchanger. If A1 = A, the rotational speed of the fan remains unchanged. The rotational speeds of the other fans are adjusted synchronously in the above manner. In this way, the working efficiency of some fans can be improved, and at the same time, it is avoided that some fans with higher local temperatures do useless work. Each fan operates at the adjusted rotational speed. [[ID=​​​​​​​​​​​​​​

[0122] Step S203, control step: when the above inlet air temperature is less than the above intermediate temperature, control the above inlet air temperature to increase the rotational speed of the above fan correspondingly; when the above inlet air temperature is greater than the above intermediate temperature, control the above inlet air temperature to decrease the rotational speed of the above fan correspondingly; when the above inlet air temperature is equal to the above intermediate temperature, control the rotational speed of the above fan corresponding to the above inlet air temperature to remain unchanged.

[0123] Specifically, the main controller adjusts the rotational speed of fan 1 corresponding to the temperature A1 of the temperature sensing bulb: judge that if A1 > A, the rotational speed of the fan is decreased to avoid excessive local temperature; if A1 < A, the rotational speed of the fan is increased to make full use of the energy of the refrigerant in the heat exchanger. If A1 = A, the rotational speed of the fan remains unchanged. The rotational speeds of other fans are synchronously adjusted in the above manner. In this way, the working efficiency of some fans can be improved, and at the same time, it can be avoided that some fans with higher local temperatures do useless work. Each fan operates at the adjusted rotational speed.

[0124] This application also provides a computer program product, which is suitable for executing a program initialized with at least the following method steps when executed on a data processing device:

[0125] Step S201, the first acquisition step: acquire the inlet air temperatures of multiple above fans, and the above inlet air temperature is the detected temperature of the above first temperature sensor corresponding to the above fan;

[0126] Specifically, taking the computer room back panel air conditioner as an example for the above air conditioner, there are multiple fans on the back panel air conditioner. The heat exchanger fins are structurally located behind the fans, and multiple temperature sensing bulbs or temperature sensors, that is, the above first temperature sensors, are installed on the heat exchanger fins, and the positions correspond to each fan. That is, there is a corresponding temperature sensing bulb or temperature sensor in the area of the heat exchanger fins corresponding to each fan; each fan and the temperature sensing bulb are connected to the main controller, and the main controller can read the temperature of the temperature sensing bulb in real time, that is, the inlet air temperature of the above fan.

[0127] Step S202, judgment step: judge whether each of the above inlet air temperatures is less than the intermediate temperature, and the above intermediate temperature is less than the highest of the above inlet air temperatures and greater than the lowest of the above inlet air temperatures;

[0128] Specifically, the main controller reads the temperatures of each temperature sensing bulb: A1, A2, A3... Set the intermediate temperature A, and the intermediate temperature A is greater than the minimum value of A1, A2, A3... and less than the maximum value of A1, A2, A3...

[0129] Step S203, a control step, in the case that the above inlet air temperature is less than the above intermediate temperature, controlling the above inlet air temperature to increase the rotational speed of the above fan accordingly; in the case that the above inlet air temperature is greater than the above intermediate temperature, controlling the above inlet air temperature to decrease the rotational speed of the above fan accordingly; in the case that the above inlet air temperature is equal to the above intermediate temperature, controlling the rotational speed of the above fan corresponding to the above inlet air temperature to remain unchanged.

[0130] Specifically, the main controller adjusts the rotational speed of the corresponding fan 1 according to the temperature A1 of the temperature sensing bulb: judge that if A1 > A, then reduce the rotational speed of the fan to avoid excessive local temperature; if A1 < A, then increase the rotational speed of the fan to make full use of the energy of the refrigerant in the heat exchanger. If A1 = A, the rotational speed of the fan remains unchanged. The rotational speeds of the other fans are synchronously adjusted in the above manner. In this way, the working efficiency of some fans can be improved, and at the same time, it is avoided that some fans with relatively high local temperatures do useless work. Each fan operates at the adjusted rotational speed.

[0131] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. They can be implemented by program codes executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order from here, or they can be separately made into individual integrated circuit modules, or multiple modules or steps among them can be made into a single integrated circuit module to be implemented. In this way, the present invention is not limited to any specific combination of hardware and software.

[0132] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0133] The present application is described by referring to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate for implementing in the process Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0134] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0135] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0136] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0137] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0138] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0139] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0140] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0141] 1) In the air conditioning control method of this application, firstly, a first acquisition step is performed to acquire the inlet air temperature of multiple fans, wherein the inlet air temperature is the temperature detected by the first temperature sensor corresponding to the fan; then, a judgment step is performed to determine whether each of the inlet air temperatures is lower than an intermediate temperature, wherein the intermediate temperature is lower than the highest inlet air temperature and higher than the lowest inlet air temperature; finally, a control step is performed, wherein when the inlet air temperature is lower than the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to increase its speed; when the inlet air temperature is higher than the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to decrease its speed; and when the inlet air temperature is equal to the intermediate temperature, the fan corresponding to the inlet air temperature is controlled to remain unchanged. This method obtains the inlet air temperature of multiple fans and sets an intermediate temperature based on these temperatures. This intermediate temperature is lower than the highest inlet air temperature but higher than the lowest. When some inlet air temperatures are higher than the intermediate temperature, the speed of the corresponding fan is reduced to prevent localized overheating. Conversely, when some inlet air temperatures are lower than the intermediate temperature, the speed of the corresponding fan is increased. This fully utilizes the energy of the refrigerant in the heat exchanger, effectively preventing the fans from performing unnecessary work during operation, improving the efficiency of the computer room air conditioning unit, achieving low cost and high reliability, solving the problem of insufficient energy utilization in computer room air conditioning units, and reducing the energy consumption of computer room air conditioning.

[0142] 2) In the air conditioner control device of this application, the first acquisition unit is used to perform a first acquisition step to acquire the inlet air temperature of the plurality of the above-mentioned fans, wherein the inlet air temperature is the detection temperature of the first temperature sensor corresponding to the above-mentioned fan; then, the judgment unit is used to perform a judgment step to determine whether each of the above-mentioned inlet air temperatures is less than an intermediate temperature, wherein the intermediate temperature is less than the highest inlet air temperature and greater than the lowest inlet air temperature; the control unit is used to perform a control step, wherein when the inlet air temperature is less than the intermediate temperature, the control unit controls the fan corresponding to the inlet air temperature to increase its speed; when the inlet air temperature is greater than the intermediate temperature, the control unit controls the fan corresponding to the inlet air temperature to decrease its speed; and when the inlet air temperature is equal to the intermediate temperature, the control unit controls the fan corresponding to the inlet air temperature to remain unchanged. This device acquires the inlet air temperature of multiple fans and sets an intermediate temperature based on these temperatures. This intermediate temperature is lower than the highest inlet air temperature but higher than the lowest. When some inlet air temperatures are higher than the intermediate temperature, the speed of the corresponding fan is reduced to prevent localized overheating. Conversely, when some inlet air temperatures are lower than the intermediate temperature, the speed of the corresponding fan is increased. This fully utilizes the energy of the refrigerant in the heat exchanger, effectively preventing the fans from performing unnecessary work during operation. This improves the efficiency of the computer room air conditioning unit, achieving low cost and high reliability. It solves the problem of insufficient energy utilization in computer room air conditioning units and reduces energy consumption.

[0143] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for controlling an air conditioner, characterized in that, The air conditioner includes an indoor heat exchanger, multiple fans, and multiple first temperature sensors. All the first temperature sensors are mounted on the indoor heat exchanger, and each first temperature sensor is correspondingly positioned in the air inlet duct of one of the fans. The method includes: The first acquisition step involves acquiring the inlet air temperature of the multiple fans, wherein the inlet air temperature is the temperature detected by the first temperature sensor corresponding to the fan. The judgment step is to determine whether each of the inlet air temperatures is lower than the intermediate temperature, wherein the intermediate temperature is lower than the highest inlet air temperature and higher than the lowest inlet air temperature. The control steps are as follows: when the inlet air temperature is lower than the intermediate temperature, the fan speed corresponding to the inlet air temperature is increased; when the inlet air temperature is higher than the intermediate temperature, the fan speed corresponding to the inlet air temperature is decreased; and when the inlet air temperature is equal to the intermediate temperature, the fan speed corresponding to the inlet air temperature is kept constant.

2. The method according to claim 1, characterized in that, Before determining whether each of the aforementioned inlet air temperatures is lower than the intermediate temperature, the method further includes: When the number of inlet air temperatures is odd, the median of the plurality of inlet air temperatures is determined as the intermediate temperature; When the number of inlet air temperatures is even, the average of the two medians of the multiple inlet air temperatures is determined as the intermediate temperature.

3. The method according to claim 1, characterized in that, Following the control step, the method further includes: The first acquisition step, the judgment step, and the control step are repeated at least once at a first predetermined time interval until the air conditioner stops.

4. The method according to any one of claims 1 to 3, characterized in that, The air conditioner further includes a flow regulating device and a second temperature sensor. The second temperature sensor is used to detect the actual temperature of the environment in which the air conditioner is located. The flow regulating device is used to regulate the flow rate of the refrigerant. Before obtaining the inlet air temperature of the multiple fans, the method further includes: The second acquisition step is to acquire the indoor ambient temperature, which is the actual temperature of the environment where the air conditioner is located, as detected by the second temperature sensor. The adjustment step involves adjusting the opening of the flow regulating device based on the difference between the indoor ambient temperature and the set temperature, so that the indoor ambient temperature reaches the set temperature, where the set temperature is the target temperature of the environment where the air conditioner is located.

5. The method according to claim 4, characterized in that, Adjusting the opening of the flow regulating device according to the difference between the indoor ambient temperature and the set temperature, so that the indoor ambient temperature reaches the set temperature, includes: When the difference between the indoor ambient temperature and the set temperature is greater than 0, the opening degree of the flow regulating device is increased; When the difference between the indoor ambient temperature and the set temperature is less than 0, reduce the opening of the flow regulating device; When the difference between the indoor ambient temperature and the set temperature is equal to 0, the opening degree of the flow regulating device is kept constant.

6. The method according to claim 4, characterized in that, Following the adjustment step, the method further includes: The second acquisition step and the adjustment step are repeated once at a second predetermined time interval until the air conditioner stops.

7. The method according to claim 4, characterized in that, Before the first acquisition step and the second acquisition step, the method further includes: If the air conditioner is turned on for less than a third predetermined duration, the reading of the detected temperatures from the first temperature sensor and the second temperature sensor shall be prohibited.

8. A control device for an air conditioner, characterized in that, The air conditioner includes an indoor heat exchanger, multiple fans, and multiple temperature sensors. All temperature sensors are mounted on the indoor heat exchanger, and each temperature sensor is correspondingly positioned in the air inlet duct of one of the fans. The device includes: The first acquisition unit is used to perform a first acquisition step to acquire the inlet air temperature of the plurality of fans, wherein the inlet air temperature is the detection temperature of the temperature sensor corresponding to the fan; The judgment unit is used to perform the judgment step to determine whether each of the inlet air temperatures is lower than the intermediate temperature, wherein the intermediate temperature is lower than the highest inlet air temperature and higher than the lowest inlet air temperature; The control unit is configured to execute control steps, wherein when the inlet air temperature is lower than the intermediate temperature, the control unit increases the fan speed corresponding to the inlet air temperature; when the inlet air temperature is higher than the intermediate temperature, the control unit decreases the fan speed corresponding to the inlet air temperature; and when the inlet air temperature is equal to the intermediate temperature, the control unit keeps the fan speed corresponding to the inlet air temperature constant.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device on which the computer-readable storage medium is located to perform the method according to any one of claims 1 to 7.

10. An air conditioning system, characterized in that, include: An air conditioner, one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including methods for performing any one of claims 1 to 7.

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