Air conditioner performance determination method and device, medium and electronic equipment

Abstract

The invention provides an air conditioner performance determination method and device, a medium and electronic equipment, and relates to the field of air conditioners. According to the environment parameters, the operation parameters and a space load model, the energy output quantity of the air conditioner within the first preset duration is determined; wherein the spatial load model is used for determining the energy output quantity by the following steps: determining the spatial load variation within a first preset duration according to the environmental parameters; and according to the operation parameters, the space load variable quantity in the first preset duration and the preset load correction quantity, the energy output quantity of the air conditioner in the first preset duration is determined. By determining the real-time space load change and the energy loss of the air conditioner, the real-time energy output quantity of the air conditioner can be more accurately determined, so that energy consumption control can be performed on the air conditioner based on the real-time energy output quantity of the air conditioner, and the energy efficiency of the air conditioner is improved.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning technology, and in particular to a method, apparatus, medium and electronic equipment for determining air conditioning performance. Background Technology

[0002] In related technologies, air conditioning systems are increasingly widely used as building heating, ventilation and air conditioning equipment. In order to control the operation of air conditioners more accurately, the controller of the air conditioner often needs to monitor various operating parameters of the air conditioner in real time. Operating parameters that can be directly measured by sensors are relatively easy to collect, but parameters such as cooling capacity and cooling energy efficiency ratio, which cannot be directly measured by sensors, are more difficult to obtain. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a method, apparatus, medium and electronic equipment for determining air conditioning performance.

[0004] According to a first aspect of the present disclosure, a method for determining air conditioning performance is provided, comprising:

[0005] Obtain the operating parameters of the air conditioner and the environmental parameters of the space where the air conditioner is located;

[0006] Based on the environmental parameters, the operating parameters, and the space load model, the energy output of the air conditioner within a first preset time period is determined; wherein, the energy output is used to characterize the cooling or heating capacity of the air conditioner, and the space load model is used to determine the energy output in the following manner:

[0007] Based on the environmental parameters, determine the spatial load change within the first preset time period;

[0008] Based on the operating parameters, the change in space load within the first preset time period, and the preset load correction amount, the energy output of the air conditioner within the first preset time period is determined. The preset load correction amount is used to characterize the energy loss of the air conditioner caused by heat dissipation from the heat source in the space and / or heat exchange between the inside and outside of the space.

[0009] Optionally, determining the spatial load change within the first preset time period based on the environmental parameters includes:

[0010] Based on the environmental parameters, the spatial load of the space at a first moment and the spatial load of the space at a second moment are determined, and the time interval between the second moment and the first moment is the first preset duration.

[0011] Based on the spatial load at the first time point and the second time point, determine the spatial load change within the first preset time period.

[0012] Optionally, the environmental parameters include atmospheric pressure, relative humidity, and dry-bulb temperature within the space. Based on these environmental parameters, the space load at the first moment and the space load at the second moment are determined, including:

[0013] For any one of the first and second time points, the following steps are performed based on the environmental parameters to obtain the space load at that any one time point:

[0014] Based on the dry-bulb temperature and relative humidity of the air at any given time, determine the enthalpy of the air in the space at any given time.

[0015] Determine the average air density in the space at any given time based on the atmospheric pressure and the dry-bulb temperature of the air at any given time.

[0016] The space load at any given time is determined based on the air enthalpy, the average air density, and the air volume of the space.

[0017] Optionally, determining the air enthalpy value of the space at any given time based on the dry-bulb temperature and relative humidity of the air includes:

[0018] The humidity content of the air in the space at any given time is determined based on the dry-bulb temperature and relative humidity of the air at any given time.

[0019] The enthalpy of the air in the space at any given time is determined based on the dry-bulb temperature and humidity of the air at any given time.

[0020] Optionally, the air conditioning operating parameters include the air conditioning operating mode, and the preset load correction includes a first heat generated by the heat source in the space and a second heat corresponding to the heat exchange between the inside and outside of the space. Based on the air conditioning operating parameters, the change in space load within the first preset time period, and the preset load correction, the energy output of the air conditioning within the first preset time period is determined, including:

[0021] When the air conditioner is in cooling mode, the cooling capacity of the air conditioner within the first preset time period is determined based on the change in space load, the first heat, and the sum of the second heat within the first preset time period.

[0022] When the air conditioner is in heating mode, the heating capacity of the air conditioner within the first preset time period is determined by the sum of the difference between the first heat and the second heat within the first preset time period and the change in space load.

[0023] Optionally, when the air conditioner is in cooling mode, the second heat exchange between the inside and outside of the space is the difference between the heat transfer due to the temperature difference between the inside and outside of the space and the heat infiltration of the air inside the space.

[0024] When the air conditioner is in heating mode, the second heat exchange between the inside and outside of the space is the sum of the heat transfer due to the temperature difference between the inside and outside of the space and the heat infiltration of the air inside the space.

[0025] Optionally, after determining the energy output of the air conditioner within a first preset time period based on the environmental parameters, the air conditioner operating parameters, and the space load model, the method further includes:

[0026] The air conditioner is controlled based on its energy output within a first preset time period.

[0027] Optionally, the space where the air conditioner is located is a test space. After determining the energy output of the air conditioner within a first preset time period based on the environmental parameters, the operating parameters, and the space load model, the method further includes:

[0028] The running time of the air conditioner, the temperature in the test space, and the set temperature of the air conditioner are obtained.

[0029] When the running time is greater than or equal to the second preset time, and the difference between the temperature in the test space and the set temperature of the air conditioner meets the difference threshold condition, the evaluation result of the air conditioner performance is output according to the energy output of the air conditioner in each first preset time within the second preset time.

[0030] When the runtime is greater than or equal to the second preset runtime, and the difference between the temperature in the test space and the set temperature of the air conditioner does not meet the difference threshold condition, a warning message is output to indicate a test abnormality.

[0031] According to a second aspect of the present disclosure, an air conditioning performance determining apparatus is provided, comprising:

[0032] The acquisition module is configured to acquire the operating parameters of the air conditioner and the environmental parameters of the space where the air conditioner is located;

[0033] The determining module is configured to determine the energy output of the air conditioner within a first preset time period based on the environmental parameters, the operating parameters, and the space load model; wherein the energy output is used to characterize the cooling or heating capacity of the air conditioner, and the space load model is used to determine the energy output in the following manner:

[0034] Based on the environmental parameters, determine the spatial load change within the first preset time period;

[0035] Based on the operating parameters, the change in space load within the first preset time period, and the preset load correction amount, the energy output of the air conditioner within the first preset time period is determined. The preset load correction amount is used to characterize the energy loss of the air conditioner caused by heat dissipation from the heat source in the space and / or heat exchange between the inside and outside of the space.

[0036] According to a third aspect of the present disclosure, a computer-readable storage medium is provided having computer program instructions stored thereon, which, when executed by a processor, implement the air conditioning performance determination method described in the first aspect of the present disclosure.

[0037] According to a fourth aspect of the present disclosure, an electronic device is provided, comprising:

[0038] Storage device for storing computer programs;

[0039] An execution device is used to execute the computer program to implement the air conditioning performance determination method according to the first aspect of the present disclosure.

[0040] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0041] This disclosure utilizes the air conditioner's operating parameters, environmental parameters of the space where the air conditioner is located, and a space load model to determine the air conditioner's energy output within a first preset time period. Specifically, the space load model determines the space load variation within the first preset time period based on the environmental parameters; and determines the air conditioner's energy output within the first preset time period based on the operating parameters, the space load variation within the first preset time period, and a preset load correction. Thus, by determining the real-time space load changes and the air conditioner's energy losses, the real-time energy output of the air conditioner can be determined more accurately. This allows for energy consumption control of the air conditioner based on its real-time energy output, thereby improving its energy efficiency.

[0042] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0043] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0044] Figure 1 This is a flowchart illustrating an air conditioning performance determination method according to an exemplary embodiment.

[0045] Figure 2 This is a scene diagram of a test laboratory according to an exemplary embodiment.

[0046] Figure 3 This is a flowchart illustrating an air conditioner performance testing method according to an exemplary embodiment.

[0047] Figure 4 This is a schematic diagram illustrating the parameters of the air conditioner under test in an air conditioner performance testing method according to an exemplary embodiment.

[0048] Figure 5 This is a schematic diagram illustrating the parameters of the operating condition to be tested in an air conditioning performance testing method according to an exemplary embodiment.

[0049] Figure 6 This is a schematic diagram illustrating the load correction amount in an air conditioning performance testing method according to an exemplary embodiment.

[0050] Figure 7 This is a schematic diagram illustrating the temperature parameter changes under steady-state control mode on the outdoor side, according to an exemplary embodiment.

[0051] Figure 8 This is a schematic diagram illustrating the temperature parameter changes under dynamic control mode on the outdoor side, according to an exemplary embodiment.

[0052] Figure 9 This is a schematic diagram illustrating the principle of calculating air conditioning energy output based on a space load model according to an exemplary embodiment.

[0053] Figure 10 This is a block diagram illustrating an air conditioning performance determination device according to an exemplary embodiment.

[0054] Figure 11 This is a block diagram illustrating an electronic device according to an exemplary embodiment.

[0055] Figure 12 This is a block diagram illustrating an apparatus for determining air conditioning performance according to an exemplary embodiment. Detailed Implementation

[0056] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0057] Figure 1 This is a flowchart illustrating an air conditioning performance determination method according to an exemplary embodiment, such as... Figure 1 As shown, the method for determining air conditioning performance includes the following steps.

[0058] In step S101, the operating parameters of the air conditioner and the environmental parameters of the space where the air conditioner is located are obtained.

[0059] In step S102, the energy output of the air conditioner within a first preset time period is determined based on environmental parameters, operating parameters, and a space load model; wherein, the energy output is used to characterize the cooling or heating capacity of the air conditioner, and the space load model is used to determine the energy output in the following manner:

[0060] Based on environmental parameters, determine the spatial load change within the first preset time period;

[0061] Based on the operating parameters, the spatial load change within the first preset time period, and the preset load correction amount, the energy output of the air conditioner within the first preset time period is determined. The preset load correction amount is used to characterize the energy loss caused by heat dissipation from heat sources within the space and / or heat exchange between the inside and outside of the space to the air conditioner.

[0062] For example, the operating parameters of the air conditioner are parameters set during operation or parameters collected in real time, such as operating mode, operating temperature, fan speed, air deflector mode, compressor operating frequency, etc., which can be obtained through data interaction with the air conditioner's controller. The operating mode can include cooling mode and heating mode. In cooling mode, the operating temperature can be 24℃~26℃; in heating mode, the operating temperature can be 21℃~23℃. The fan speed can be, for example, free fan speed, lowest fan speed, highest fan speed, etc. The air deflectors include left and right air deflectors and upper and lower air deflectors. Each set of air deflectors includes a circulating air sweep mode and a fixed air sweep mode, etc. The left and right air deflectors and the upper and lower air deflectors can be independently selected to be set to circulating air sweep mode and fixed air sweep mode. The operating parameters can be set according to actual conditions; this is only an example and not intended to limit this embodiment.

[0063] For example, environmental parameters refer to the physical conditions of the space where the air conditioner is located, such as indoor air pressure, indoor temperature, outdoor temperature, humidity, and solar radiation intensity. These parameters can be obtained using devices such as temperature sensors, pressure gauges, and hygrometers installed inside and outside the space. Temperature sensors can be located at multiple locations inside and outside the space, or they can be temperature sensors inside the air conditioner itself. The space where the air conditioner is located can be a house, a vehicle, or other similar space. The environmental parameters of the space where the air conditioner is located can include parameters inside and outside the space. For example, parameters inside the space can include indoor air pressure, indoor dry-bulb temperature, indoor wet-bulb temperature, or relative humidity, while parameters outside the space can include outdoor dry-bulb temperature, outdoor wet-bulb temperature, or relative humidity.

[0064] For example, the space load model is used to calculate the energy output of the air conditioner within each preset time period in the space environment where the air conditioner is located. The energy output represents the cooling or heating capacity of the air conditioner. Specifically, when the air conditioner is operating in cooling mode, the energy output represents its cooling capacity; when it is operating in heating mode, the energy output represents its heating capacity. The first preset time period can be set according to actual conditions. For example, it can be set to any value between 1s and 180s based on the frequency of air conditioner control. If the air conditioner is in a test space, to facilitate obtaining continuous-time test results and reduce computational resources, the first preset time period can be set to 3s-5s.

[0065] Specifically, the space load model can determine the impact of space energy changes on air conditioning load within a first preset time period based on the space load change. The space load change can be determined based on environmental parameters, where the change is due to the energy output of the air conditioner, as well as the additive or subtractive effects of other factors within the space on the air conditioner's energy. Therefore, the actual energy output of the air conditioner can be obtained from the space load change and the corresponding additive or subtractive effects of other factors on the air conditioner's energy in the space load model.

[0066] For example, the space load model can be a mathematical model or a neural network model, and this embodiment does not limit this. For instance, when the space load model is a neural network model, it can include two connected neural network models. The training samples for the first network model can be environmental parameters and the actual changes in space load, so that the trained first network model can determine the changes in space load within a first preset time period based on the environmental parameters. The training samples for the second network model can be the operating parameters of the air conditioner, the load correction amount under different operating conditions of the air conditioner, the changes in space load within the first preset time period output by the first network model, and the actual heating or cooling capacity output by the air conditioner, so that the trained second model can determine the energy output of the air conditioner within the first preset time period based on the operating parameters, the changes in space load within the first preset time period, and the preset load correction amount.

[0067] For example, the preset load correction can be used to account for the loss load corresponding to factors within the space where the air conditioner is located that cause energy loss in the air conditioner's output. For instance, heat generated by a heat source in the space can cause the air conditioner to increase its cooling capacity to counteract the heat generated when in cooling mode; conversely, when in heating mode, it can reduce its heating capacity to reach the set target temperature. Heat sources can include, for example, people, animals, electrical appliances, etc. Room heat exchange also causes energy loss in the air conditioner's output. The preset load correction can be preset to different values ​​based on different factors. For example, the preset load correction can be set to a first value or a second value depending on whether the air conditioner is in heating or cooling mode. Furthermore, the preset load correction can be a fixed value or a value that changes over time. For example, for different air conditioner operating modes, different room heat exchange capacities, different door and window openings, and different numbers of people in the room, load change curves that change with the air conditioner's operating time can be preset, with a corresponding preset load correction at each point in time. This is just one example of setting the preset load correction; other factors will be described in subsequent embodiments.

[0068] This disclosure utilizes the air conditioner's operating parameters, environmental parameters of the space where the air conditioner is located, and a space load model to determine the air conditioner's energy output within a first preset time period. Specifically, the space load model determines the space load variation within the first preset time period based on the environmental parameters; and determines the air conditioner's energy output within the first preset time period based on the operating parameters, the space load variation within the first preset time period, and a preset load correction. Thus, by determining the real-time space load changes and the air conditioner's energy losses, the real-time energy output of the air conditioner can be determined more accurately. This allows for energy consumption control of the air conditioner based on its real-time energy output, thereby improving its energy efficiency.

[0069] As an optional embodiment, determining the spatial load change over a first preset time period based on environmental parameters includes:

[0070] Based on environmental parameters, determine the spatial load at the first moment and the spatial load at the second moment. The time interval between the second moment and the first moment is the first preset duration.

[0071] Based on the spatial load at the first and second moments, determine the spatial load change within the first preset time period.

[0072] For example, based on the environmental parameters acquired at each moment, the corresponding spatial load at each moment can be determined. The environmental parameters corresponding to the first moment can be acquired and stored in advance. Then, when the second moment arrives, the environmental parameters corresponding to the second moment are acquired, and the spatial load at both the first and second moments is calculated and determined. Alternatively, the environmental parameters corresponding to the first moment can be acquired at the first moment, and the spatial load at the first moment can be calculated. Then, at the second moment after a first preset time period, the environmental parameters corresponding to the second moment are acquired, and the spatial load at the second moment is calculated. Then, based on the difference between the spatial load at the first and second moments, the change in spatial load within the first preset time period can be determined.

[0073] For example, this disclosure can continuously monitor and calculate the spatial load over a first preset time period. By calculating the changes in the spatial load, the energy output of the air conditioning system can be determined, thereby controlling the air conditioning system and achieving energy conservation and emission reduction. Furthermore, it can more effectively regulate the operation of the air conditioning system to meet actual load demands, thereby improving energy efficiency.

[0074] As an optional embodiment, environmental parameters include atmospheric pressure, relative humidity, and dry-bulb temperature within the space. Based on these environmental parameters, the space load at a first time point and the space load at a second time point are determined, including:

[0075] For any one of the first and second time points, perform the following steps based on environmental parameters to obtain the space load at that time point:

[0076] Determine the air enthalpy value of the space at any given moment based on the dry-bulb temperature and relative humidity of the air at any given moment;

[0077] Determine the average air density in space at any given moment based on the atmospheric pressure and dry-bulb temperature of the air at any given moment;

[0078] The spatial load at any given moment is determined based on the air enthalpy, average air density, and air volume of the space.

[0079] For example, atmospheric pressure is the pressure exerted by the atmosphere on a unit area, and can be obtained using a pressure gauge placed within the space. Relative humidity is the percentage of water vapor pressure in the air compared to the saturated water vapor pressure at the same temperature, and can be obtained using a hygrometer placed within the space. Dry-bulb temperature is the value read from a dry-bulb thermometer exposed to the air but not directly exposed to sunlight; it is the temperature measured by a thermometer in ordinary air, and is also called air temperature.

[0080] For example, the enthalpy of air refers to the total heat contained in air, usually based on a unit mass of dry air, and is the sum of the enthalpy of one kilogram of dry air and the corresponding enthalpy of water vapor. The enthalpy of air in a space at any given moment can be determined based on the dry-bulb temperature and relative humidity of the air. The average density of air is the mass per unit volume of air, which can be determined based on atmospheric pressure and dry-bulb temperature. The spatial load at a given moment can be determined based on the air enthalpy, average density, and air volume of the space at that moment. The air enthalpy and average density can change in real time, while the air volume of the space remains constant and can be predetermined based on the size of the space. Specifically, the spatial load can be calculated using the formula: Q = hρV, where Q represents the spatial load, h represents the air enthalpy, ρ represents the average air density, and V represents the air volume of the space.

[0081] For example, the air load at each moment can be determined based on atmospheric pressure, relative humidity, and dry-bulb temperature. Then, based on the air load at the initial and final moments corresponding to each first preset duration, i.e., the air load at the first moment and the second moment, the change in air load within that first preset duration is determined.

[0082] Here, based on the atmospheric pressure, relative humidity, and dry-bulb temperature at the first and second moments within a first preset time period, the spatial load at the first and second moments can be determined, and then the change in spatial load within the first preset time period can be obtained. It can be understood that when determining the change in spatial load within the first preset time period, the shorter the first preset time period, the more accurate the calculated change in spatial load. Accurate load measurement helps optimize the energy efficiency of the air conditioning system and reduce unnecessary energy waste.

[0083] As an optional embodiment, determining the air enthalpy of the space at any given time based on the dry-bulb temperature and relative humidity of the air includes:

[0084] Determine the humidity content of the air in the space at any given time based on the dry-bulb temperature and relative humidity of the air at any given time.

[0085] Determine the air enthalpy value of the space at any given time based on the dry-bulb temperature and humidity of the air at any given time.

[0086] For example, the humidity of the air in the space at each moment can be determined based on the dry-bulb temperature and relative humidity of the air at that moment, and the enthalpy of the air in the space at that moment can also be determined based on the dry-bulb temperature and humidity of the air at that moment. Then, based on the enthalpy of the air at that moment, the average density of the air in the space at that moment, and the air volume of the space, the space load at that moment can be calculated.

[0087] As an optional embodiment, the air conditioning operating parameters include the air conditioning operating mode, and the preset load correction includes the first heat generated by the heat source in the space and the second heat corresponding to the heat exchange between the inside and outside of the space. Based on the air conditioning operating parameters, the space load change within a first preset time period, and the preset load correction, the energy output of the air conditioning within the first preset time period is determined, including:

[0088] When the air conditioner is in cooling mode, the cooling capacity of the air conditioner within the first preset time period is determined based on the change in space load, the sum of the first heat and the second heat within the first preset time period.

[0089] When the air conditioner is in heating mode, the heating capacity of the air conditioner within the first preset time period is determined by the sum of the difference between the first heat and the second heat within the first preset time period and the change in space load.

[0090] For example, air conditioners have two operating modes: heating and cooling. In different operating modes, the amount of energy loss or gain for each item in the preset load correction varies depending on the mode. For instance, in heating mode, the heat generated by the indoor heat source can reduce the heating output of the air conditioner. Specifically, to reach the originally set heating temperature, the air conditioner only needs to output the first type of energy. However, the heat generated by the indoor heat source can provide some energy for reaching the originally set heating temperature. Therefore, the actual heating output of the air conditioner is the second type of heat, obtained by subtracting the heat generated by the indoor heat source from the first type of energy, to reach the originally set heating temperature. Conversely, in cooling mode, the heat generated by the indoor heat source can increase the heating output of the air conditioner. Specifically, to reach the originally set cooling temperature, the cooling capacity generated by the air conditioner is the third type of energy. However, since the heat generated by the indoor heat source will offset some of the cooling capacity output by the air conditioner, the air conditioner outputs more cooling capacity than it consumes. Therefore, the actual cooling output of the air conditioner is the fourth type of heat, obtained by adding the third type of energy to the heat generated by the indoor heat source, to reach the originally set cooling temperature.

[0091] For example, the space where the air conditioner is located is a house, vehicle, etc. The insulating material between the inside and outside of the space cannot be absolutely insulated. Therefore, there will be a temperature difference between the inside and outside of the space, which will affect the internal temperature of the space, and the energy output of the air conditioner will increase accordingly. In addition, there are gaps between the doors and windows of the house that isolate the inside and outside of the space. That is, air inside the space can also seep out through the gaps, causing a loss of energy output from the air conditioner. Therefore, the actual energy output of the air conditioner can also take into account the secondary heat corresponding to the heat exchange between the inside and outside of the space.

[0092] For example, in air conditioning cooling mode, the cooling capacity of the air conditioner is determined by adding the change in space load within a first preset time period to the first heat generated by the heat source in the space and the second heat generated by heat exchange between the inside and outside of the space. In air conditioning heating mode, the heating capacity of the air conditioner is determined by adding the difference between the first heat and the second heat to the change in space load within a first preset time period.

[0093] For example, when the air conditioner is in cooling mode, the second heat exchange between the inside and outside of the space is the difference between the heat transfer due to the temperature difference between the inside and outside of the space and the heat infiltration of the air inside the space; when the air conditioner is in heating mode, the second heat exchange between the inside and outside of the space is the sum of the heat transfer due to the temperature difference between the inside and outside of the space and the heat infiltration of the air inside the space.

[0094] For example, the heat transfer due to the temperature difference between the inside and outside of a space can characterize the energy loss of the air conditioner due to the different insulation properties of the materials separating the inside and outside of the space. When the space is a house, the materials separating the inside and outside of the space are building materials such as walls and windows; when the space is a vehicle, the materials separating the inside and outside of the space are materials such as the vehicle body and / or windows. Heat exchange between the inside and outside of a space can characterize the energy loss of the air conditioner due to the existence of gaps between the inside and outside of the space. It can be understood that the larger the gap, the greater the energy loss of the air conditioner.

[0095] For example, when the air conditioner is in cooling mode, the indoor temperature is lower than the outdoor temperature. The air conditioner outputs cooling capacity to resist the heat transferred from the outside to the inside. At the same time, some of the energy generated by the air conditioner will be lost to the outside through gaps in doors and windows. Therefore, when the air conditioner is in cooling mode, the second heat exchange between the inside and outside of the space can be the difference between the heat transferred by the temperature difference between the inside and outside of the space and the heat infiltrated by the air inside the space.

[0096] For example, when the air conditioner is in heating mode, the indoor temperature is higher than the outdoor temperature. The air conditioner outputs heating to counteract the cold transferred from the outside to the inside. At the same time, some of the energy generated by the air conditioner will be lost to the outside through gaps in doors and windows. Therefore, when the air conditioner is in heating mode, the second heat exchange between the inside and outside of the space can be the sum of the heat transferred by the temperature difference between the inside and outside of the space and the heat infiltrated by the air inside the space.

[0097] As a specific example, when the air conditioner is located inside a house, the spatial load model is used as a mathematical model example to illustrate the reasoning process of the spatial load model and the calculation process of determining the energy output of the air conditioner based on the spatial load model.

[0098] Enthalpy, in thermodynamics, is an important state parameter characterizing the energy of a material system; it can be understood as a unit of energy. The indoor air where the air conditioner is located can be considered as a whole load meter. Based on the enthalpy values ​​at time t and t+1, the change in indoor enthalpy per unit time is determined to be the sum of the energy output of the air conditioner and the energy loss caused by other factors per unit time, i.e.:

[0099] Δh 室内 =|h t -h t+1 |=Δh 空调 +Δh 其他 (1)

[0100] Wherein, △h 室内 The change in enthalpy of indoor air per unit time, h t h is expressed as the enthalpy of indoor air at time t. t+1 The enthalpy of indoor air at time t+1 is expressed as Δh. 空调 It is expressed as the change in enthalpy of indoor air per unit time due to the air conditioner output, Δh 其他 It represents the change in enthalpy of indoor air per unit time caused by other factors.

[0101] like Figure 9 As shown, based on equation (1), the change in indoor energy per unit time can be obtained, that is:

[0102] ΔQ 室内 =|h t ×ρ t -h t+1 ×ρ t+1 |V 室内 =ΔQ 空调 +ΔQ 其他 (2)

[0103] Wherein, △Q 室内 This is expressed as the change in energy of indoor air per unit time, i.e., the change in space load; h t ρ is expressed as the enthalpy of indoor air at time t. t h represents the average air density in the room at time t. t+1 ρ is expressed as the enthalpy of indoor air at time t+1. t+1 V represents the average air density in the room at time t+1; 室内Expressed as the indoor air volume; △Q 空调 It is expressed as the change in indoor air load per unit time due to the air conditioner's output load, i.e., the air conditioner's energy output, ΔQ. 其他 This represents the energy loss of indoor air per unit time due to other reasons, i.e., the preset load correction amount.

[0104] For example, the enthalpy h of air at each moment can be obtained by the following formula:

[0105] h = (1.01 + 1.84d)T a +2500d (3)

[0106] Where 1.01 is the average isobaric specific heat of dry air; 1.84 is the average isobaric specific heat of water vapor; d represents the humidity content of the air; T a It is expressed as the indoor air dry-bulb temperature, which can be obtained in real time using a temperature sensor or a dry-bulb thermometer installed indoors.

[0107] For example, the air humidity d at each moment can be obtained by the following formula:

[0108]

[0109] in, Represented as indoor relative humidity; P a P is expressed as atmospheric pressure within space. q,b It is expressed as the partial pressure of water vapor in saturated moist air.

[0110] Among them, the indoor air dry bulb temperature is -100℃ < T a The partial pressure of water vapor in saturated moist air at ≤0℃ is P. q,b Refer to the following calculation formula:

[0111]

[0112] Where C1 is -5.6745359 × 10 3 C2 is 6.3925247; C3 is -9.677843 × 10 -3 C4 is 6.2215701 × 10⁻⁶. -7 C5 is 2.0747825 × 10⁻⁶. -9 C6 is -9.484024 × 10 -13 C7 is 4.1635019; T represents the thermodynamic temperature of moist air, T = 273.15 + T a T a It is expressed as the indoor air dry-bulb temperature, which can be obtained in real time using a temperature sensor or a dry-bulb thermometer installed indoors.

[0113] Among them, the indoor air dry bulb temperature is 0℃ < T a The partial pressure of water vapor in saturated moist air at ≤200℃, P q,b Refer to the following calculation formula:

[0114]

[0115] Where C8 is -5.8002206×10 3 C9 is 1.3914993; C10 is -4.8640239×10 -2 C11 is 4.1764768 × 10 -5 C12 is -1.4452093 × 10 -9 C13 is 6.5459673; T represents the thermodynamic temperature of moist air, T = 273.15 + T a T a It is expressed as the indoor air dry-bulb temperature, which can be obtained in real time using a temperature sensor or a dry-bulb thermometer installed indoors.

[0116] For example, the average air density ρ at each moment can be obtained by the following formula:

[0117]

[0118] Where, ρ g The density of dry air, ρ q P is expressed as the density of water vapor. g P is expressed as the partial pressure of dry air. q Let P be the partial pressure of water vapor, where, according to the empirical formula... g =3 / 5 Pa, Pq = 2 / 5 Pa, Pa is the atmospheric pressure in space; R g The gas constant for dry air is typically 287 J / (kg·K); R q The gas constant for water vapor is typically 461 J / (kg·K); T represents the thermodynamic temperature of moist air, T = 273.15 + T. a T a It is expressed as the indoor air dry-bulb temperature, which can be obtained in real time using a temperature sensor or a dry-bulb thermometer installed indoors.

[0119] Therefore, the preset load correction is set as the first heat Q1 generated by the heat source within the space and the second heat Q2 corresponding to the heat exchange between the inside and outside of the space. The second heat includes the heat transfer due to the temperature difference between the inside and outside of the space caused by the lack of insulation in the building materials. 21 And the heat of infiltration Q caused by air permeation from inside the space to the outside due to gaps.22 .

[0120] In cooling mode, the formula for calculating the energy output of the air conditioner within a preset time period is as follows:

[0121] ΔQ 空调 =|h t ρ t -h t+1 ρ t+1 |V 室内 +Q 21 -Q 22 +Q1 (8)

[0122] In heating mode, the formula for calculating the energy output of the air conditioner within a preset time period is as follows:

[0123] ΔQ 空调 =|h t ρ t -h t+1 ρ t+1 |V 室内 +Q 21 +Q 22 +Q1 (9)

[0124] The air enthalpy h at each moment can be calculated based on the above formulas (3) to (6), and the average air density ρ at each moment can be calculated based on the above formula (7). The first heat Q1 and the heat transfer due to the temperature difference between the inside and outside of the space Q 21 Heat infiltration Q within the space 22 All settings can be preset, or they can be updated in real time using other methods; this disclosure does not impose any restrictions on this.

[0125] As an optional embodiment, after determining the energy output of the air conditioner within a first preset time period based on environmental parameters, air conditioner operating parameters, and a space load model, the method further includes:

[0126] The air conditioner is controlled based on its energy output within a first preset time period.

[0127] For example, after determining the energy output of the air conditioner within a first preset time period, the air conditioner can be controlled based on its real-time energy output. For instance, energy consumption can be controlled based on operating parameters such as the air conditioner's speed and compressor frequency. As another example, when the energy output does not match the expected energy output, operating parameters such as the air conditioner's speed and compressor frequency can be controlled to meet the user's comfort needs.

[0128] As an optional embodiment, the space where the air conditioner is located is a test space. After determining the energy output of the air conditioner within a first preset time period based on environmental parameters, operating parameters, and a space load model, the method further includes:

[0129] Obtain the air conditioner's operating time, the temperature in the test space, and the air conditioner's set temperature;

[0130] When the running time is greater than or equal to the second preset time, and the difference between the temperature in the test space and the set temperature of the air conditioner meets the difference threshold condition, the evaluation result of the air conditioner performance is output according to the energy output of the air conditioner in each first preset time within the second preset time.

[0131] When the runtime is greater than or equal to the second preset runtime, and the difference between the temperature in the test space and the set temperature of the air conditioner does not meet the difference threshold condition, an alarm message to indicate test abnormality will be output.

[0132] For example, the second preset duration can be set according to the testing requirements, such as 0.5h, 1.0h, 2.0h, etc., and is generally much longer than the first preset duration. When evaluating the air conditioner's performance, the cooling or heating capacity can be evaluated based on the air conditioner's energy output per first preset duration within the second preset duration. For example, the air conditioner's energy output can be obtained every 5 seconds within a 2-hour period, and the corresponding evaluation result can be obtained. The evaluation result can be in graphical form, such as a data table or a line graph representing the energy output change trend. Alternatively, a preset algorithm can be used to evaluate the air conditioner's performance based on the air conditioner's energy output per first preset duration within the second preset duration, determining the cooling or heating performance as excellent, good, average, poor, very poor, etc. This embodiment does not impose any limitations on this.

[0133] For example, when the runtime is greater than or equal to the second preset duration, the test time ends. If the difference between the temperature in the test space and the set temperature of the air conditioner meets the difference threshold condition, for example, if the difference is less than or equal to the preset difference threshold, then it indicates that the performance of the air conditioner in this test meets the requirements. The evaluation result of the air conditioner performance can be output based on the energy output of the air conditioner in each first preset duration within the second preset duration.

[0134] For example, when the running time is less than the second preset time, the test time ends. If the difference between the temperature in the test space and the set temperature of the air conditioner does not meet the difference threshold condition, for example, if the difference is greater than the preset difference threshold, it indicates that the performance of the air conditioner in this test does not meet the requirements. Based on the energy output of the air conditioner in each first preset time within the second preset time, a warning message to indicate the test abnormality can be output.

[0135] As a specific example, a test system for testing air conditioning performance based on a comfort test bench is provided, combined with... Figures 2-9The air conditioning performance testing method of this embodiment will be described.

[0136] In this embodiment, the air conditioning performance testing system includes three parts: the air conditioner under test, the main control test program, and the test laboratory.

[0137] The air conditioners to be tested can be wall-mounted air conditioners, cabinet air conditioners, portable air conditioners, ducted air conditioners, and ceiling-mounted air conditioners, etc.

[0138] See Figure 2 The provided test chamber scene diagram shows that the test chamber consists of an outdoor side and an indoor side. The indoor side includes an indoor unit air intake device and an indoor unit air outlet device, used to jointly complete the debugging of indoor test conditions. The indoor unit of the air conditioner under test is placed in the indoor side of the test chamber during the test. The outdoor side includes an outdoor unit air intake device and an outdoor unit air outlet device, used to jointly complete the debugging of outdoor test conditions. The outdoor unit of the air conditioner under test is placed in the outdoor side of the test bench during the test. The indoor side is also equipped with a hygrometer, dry-bulb thermometer, barometer, etc. (not shown in the diagram), used to acquire data such as indoor dry-bulb temperature, relative humidity, and atmospheric pressure in real time.

[0139] The main control test program is the control center connecting the air conditioner under test and the test laboratory. See [link / reference] Figure 3 The main control test program includes the program front-end, the verification program, the program center, and the test report.

[0140] The program front-end is used to acquire the parameters of the air conditioner under test and the parameters of the operating conditions under test. For example... Figure 4 As shown, the parameters of the air conditioner to be tested include: basic air conditioner parameters and air conditioner operating parameters.

[0141] For example, basic air conditioner parameters include air conditioner type, cooling type, air conditioner horsepower, air conditioner energy efficiency rating, APF (Annual Performance Factor), rated cooling capacity, rated cooling power, rated heating power, air circulation volume, etc.

[0142] Air conditioner categories include wall-mounted air conditioners, floor-standing air conditioners, portable air conditioners, ducted air conditioners, and ceiling-mounted air conditioners, etc. Cooling categories include cooling-only units and cooling-heating units, etc. Air conditioner horsepower includes 1 HP (2600W), 1.5 HP (3500W), 2 HP (4600W), 2 HP (5100W), 3 HP (7200W), 4 HP (8500W), and 4 HP (9000W), etc. Air conditioner energy efficiency ratings include Level 1, Level 2, Level 3, Level 4, and Level 5, etc. APF (GB 21455-2019) is used to measure the overall energy consumption performance of an air conditioner under different outdoor temperature conditions throughout the year, usually expressed as the energy consumption required per unit of cooling capacity. The higher the APF value, the better the energy efficiency performance of the air conditioner, and the more energy-saving and environmentally friendly it is. Rated cooling capacity, rated cooling power, rated heating capacity, rated heating power, and air circulation volume can be set by referring to the actual nameplate parameters of the air conditioner under test.

[0143] For example, the air conditioning operating parameters include operating mode, operating mode, operating fan speed, and air guide plate mode, etc.

[0144] The operating modes include cooling and heating. The selectable operating temperature range is 16℃~30℃, with the preferred operating temperature for cooling mode being 24℃~26℃ and for heating mode being 21℃~23℃. The fan speed settings include free fan speed, lowest fan speed, and highest fan speed. The air guide vane mode involves two parts: left and right air guide vanes and upper and lower air guide vanes. The operating modes of these two parts can be independently selected as either circulating airflow mode or fixed airflow mode.

[0145] For example, such as Figure 5 As shown, the environmental parameters corresponding to the operating conditions to be measured include: indoor operating condition parameters and outdoor operating condition parameters. Indoor operating condition parameters may include indoor air pressure, indoor dry-bulb temperature, and indoor wet-bulb temperature (or relative humidity). Outdoor operating condition parameters may include outdoor dry-bulb temperature and outdoor wet-bulb temperature (or relative humidity).

[0146] Understandably, for test benches that can only collect indoor / outdoor wet-bulb temperatures, the collected indoor / outdoor wet-bulb temperatures and corresponding indoor / outdoor dry-bulb temperatures can be converted and calculated to obtain the corresponding indoor / outdoor relative humidity, which is then used to calculate the energy output of the air conditioner under test. For test benches that can directly collect indoor / outdoor relative humidity, the collected indoor / outdoor relative humidity can be directly used to calculate the energy output of the air conditioner under test.

[0147] For example, the verification procedure is used to verify the air conditioning operating parameters and the operating conditions of the air conditioner under test. The air conditioning operating parameter verification is used to verify the operating parameters of the air conditioner under test at the time of startup, and the test bench operating condition verification is used to verify the indoor and outdoor operating condition parameters of the test bench at the time of startup of the air conditioner under test.

[0148] Regarding indoor operating parameters, different test conditions can be selected based on the different operating modes of the air conditioner under test. For example, when the air conditioner under test is in cooling mode, the indoor operating parameters can be set to default or custom. The default option corresponds to an indoor dry-bulb temperature of 27℃ and a wet-bulb temperature of 19℃. When the air conditioner under test is in heating mode, the indoor operating parameters can be set to default or custom. The default option corresponds to an indoor dry-bulb temperature of 20℃ and no limit on the wet-bulb temperature. In the custom option, the tester can freely set the parameters, where the wet-bulb temperature value is lower than the dry-bulb temperature value.

[0149] Among them, for outdoor operating parameters, different test conditions can be selected according to different operating modes of the air conditioner under test, and steady-state control mode or dynamic control mode can be selected according to test requirements.

[0150] For example, when the outdoor testing requirement is a steady-state control mode, such as Figure 7 As shown, during the test, the dry-bulb and wet-bulb temperatures of the air outside the test bench remained at constant values. When the air conditioner under test was in cooling mode, the indoor operating parameters could be set to rated cooling (35℃ / 24℃), intermediate cooling (35℃ / 24℃), low-temperature cooling (29℃ / 19℃), low-temperature intermediate cooling (29℃ / 19℃), and custom. When the air conditioner under test was in heating mode, the indoor operating parameters could be set to rated heating (7℃ / 6℃), intermediate heating (7℃ / 6℃), low-temperature heating (2℃ / 1℃), and custom. It can be understood that rated cooling (35℃ / 24℃) means that the dry-bulb temperature corresponding to the rated cooling condition is 35℃ and the corresponding wet-bulb temperature is 24℃.

[0151] For example, when the outdoor testing requirement is a dynamic control mode, such as Figure 8 As shown, during the test, the dry-bulb temperature and wet-bulb temperature of the air outside the test bench are a temperature control curve with target dry-bulb temperature and target wet-bulb temperature set customarily over the test time. The time interval between the target temperature control points can be optionally set to 0.5h, 1.0h, or 2.0h.

[0152] For example, the program central control is used to measure the air conditioning load of the air conditioner under test and the energy loss caused by other factors to the air conditioner's output in the test bench. Figure 6As shown, the load correction may include the heat transfer due to the temperature difference between indoors and outdoors, the heat infiltration of indoor and outdoor air, and the heat dissipation of indoor heat sources, including human bodies, heat dissipation appliances, etc. For example, the program central can calculate the energy output of the air conditioner based on the load correction and the above calculation formulas (3) to (9).

[0153] For example, the test termination conditions include time conditions and indoor temperature control conditions. Time conditions include preset test durations of 4 hours and 8 hours; when the test duration is greater than or equal to the preset test duration, the time condition is considered met. Indoor temperature control conditions are: the difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is less than or equal to 1.0℃, and the difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is less than or equal to 1.0℃.

[0154] For example, when the test termination conditions are met, the main control test program outputs a test report, which may include the energy output of the air conditioner under test in each unit of time within the preset test duration. Furthermore, the test report may also include the performance evaluation results of the air conditioner under test within the preset test duration.

[0155] As a concrete example, see further. Figure 3 The method for performing performance tests on air conditioners based on the test system described above may include:

[0156] First, the experimenters installed the air conditioner under test on the test bench according to the experimental specifications, and entered the basic parameters of the air conditioner under test into the human-machine interface at the front end of the main control test program. They also set the operating parameters of the air conditioner under test, the test condition parameters of the indoor and outdoor areas of the test bench, and the preset test duration.

[0157] Specifically, when the outdoor test condition is in steady-state control mode, the target dry-bulb temperature and target wet-bulb temperature of the outdoor test condition are set; when the outdoor test condition is in dynamic control mode, the outdoor target temperature control point time interval is selected, and then the target dry-bulb temperature and target wet-bulb temperature of each target temperature control point are set according to the set target temperature control point time interval.

[0158] Then, in response to the test command triggered by the test personnel on the program front-end interface, the main control test program performs tests on the air conditioner under test based on the set parameters.

[0159] The test bench operating condition verification module of the inspection procedure verifies the test operating condition parameters inside and outside the test bench. When the test operating condition parameters inside and outside the test bench do not meet the temperature control requirements, it sends feedback instruction 1 to the main control test program, which then controls the test bench operating condition unit to continue working. When the test operating condition parameters inside the test bench meet the temperature control requirements, the main control test program sends a start-up instruction to the air conditioner under test. The temperature control requirements can be that the indoor and outdoor dry-bulb and wet-bulb temperatures meet a ±0.5℃ temperature requirement. That is, the difference between the indoor and outdoor dry-bulb temperatures and the set dry-bulb temperatures is less than or equal to 0.5℃, and the difference between the indoor and outdoor wet-bulb temperatures and the set wet-bulb temperatures is less than or equal to 0.5℃.

[0160] The main control test program sends a power-on command to the air conditioner under test. At time T1, when the air conditioner under test starts up, the air conditioner operation verification module extracts the actual operating parameters of the air conditioner under test and compares them with the set operating parameters. The actual operating parameters include the actual operating mode, actual operating temperature, actual operating fan speed, and actual air guide vane mode. The set operating parameters include the target operating mode, target operating temperature, target operating fan speed, and target air guide vane mode. The value of T1 ranges from 1s to 180s, with a preferred value of 10s. When the actual operating parameters of the air conditioner completely match the set operating parameters, the air conditioner operation verification module sends a normal test command to the main control test program. When any parameter does not match the actual operating parameters, the air conditioner operation verification module sends a command 2 to the main control test program. Command 2 indicates an abnormal operating parameter of the air conditioner under test, and the main control test program exits the test process based on command 2.

[0161] Once the main control test program receives successful verification commands from the test bench operating condition verification module and the air conditioning operation verification module, the main control test program's central module executes the calculation program. This central module includes the test bench heat load metering module, the air conditioning load metering module, and the test termination condition module.

[0162] The test bench's heat load metering module executes instructions and, based on its built-in metering program, retrieves real-time indoor and outdoor environmental parameters to measure the real-time indoor-outdoor temperature difference heat transfer, indoor-outdoor air infiltration heat, and indoor heat source heat dissipation during the test. The indoor-outdoor temperature difference heat transfer, indoor-outdoor air infiltration heat, and indoor heat source heat dissipation provided in the metering program can be pre-set fixed values ​​or heat curves varying over time. Alternatively, the metering program can use existing technology to calculate these parameters at each moment; the specific metering method is not limited here.

[0163] Among them, the air conditioning load metering module starts to execute the instruction, and according to the real-time collected indoor air pressure, indoor air dry bulb temperature and indoor air wet bulb temperature, as well as the load correction value output by the test bench heat load metering module, and based on the above calculation formulas (3) to (9), obtains the energy output to the room by the air conditioner under test in each first preset time period, that is, the dynamic cooling capacity / heating capacity of the air conditioner.

[0164] The test termination condition module is used to determine whether the test termination conditions are met. Specifically, if the time condition is not met, the main control test program continues to execute the test instructions; if both the time and indoor temperature control conditions are met, the main control test program issues a test termination instruction and outputs a test report; if the time condition is met but the indoor temperature control conditions are not met, the main control test program issues a test termination instruction and outputs a test anomaly warning.

[0165] For example, the test termination conditions include time conditions and indoor temperature control conditions. Time conditions include preset test durations of 4 hours and 8 hours; when the test duration is greater than or equal to the preset test duration, the time condition is considered met. Indoor temperature control conditions are: the difference between the real-time indoor dry-bulb temperature and the target indoor dry-bulb temperature is less than or equal to 1.0℃, and the difference between the real-time indoor wet-bulb temperature and the target indoor wet-bulb temperature is less than or equal to 1.0℃.

[0166] Figure 10 This is a block diagram illustrating an air conditioning performance determining device according to an exemplary embodiment. (Refer to...) Figure 10 The air conditioning performance determination device includes an acquisition module 1001 and a determination module 1002.

[0167] The acquisition module 1001 is configured to acquire the operating parameters of the air conditioner and the environmental parameters of the space where the air conditioner is located;

[0168] The determining module 1002 is configured to determine the energy output of the air conditioner within a first preset time period based on the environmental parameters, the operating parameters, and the space load model; wherein the energy output is used to characterize the cooling or heating capacity of the air conditioner, and the space load model is used to determine the energy output in the following manner:

[0169] Based on the environmental parameters, determine the spatial load change within the first preset time period;

[0170] Based on the operating parameters, the change in space load within the first preset time period, and the preset load correction amount, the energy output of the air conditioner within the first preset time period is determined. The preset load correction amount is used to characterize the energy loss of the air conditioner caused by heat dissipation from the heat source in the space and / or heat exchange between the inside and outside of the space.

[0171] As an optional embodiment, the determining module 1002 is further configured to:

[0172] Based on environmental parameters, determine the spatial load at the first moment and the spatial load at the second moment. The time interval between the second moment and the first moment is the first preset duration.

[0173] Based on the spatial load at the first and second moments, determine the spatial load change within the first preset time period.

[0174] As an optional embodiment, the environmental parameters include atmospheric pressure, relative humidity, and dry-bulb temperature within the space, and the determining module 1002 is further configured to:

[0175] For any one of the first and second time points, perform the following steps based on environmental parameters to obtain the space load at that time point:

[0176] Determine the air enthalpy value of the space at any given moment based on the dry-bulb temperature and relative humidity of the air at any given moment;

[0177] Determine the average air density in space at any given moment based on the atmospheric pressure and dry-bulb temperature of the air at any given moment;

[0178] The spatial load at any given moment is determined based on the air enthalpy, average air density, and air volume of the space.

[0179] As an optional embodiment, the determining module 1002 is further configured to:

[0180] Determine the humidity content of the air in the space at any given time based on the dry-bulb temperature and relative humidity of the air at any given time.

[0181] Determine the air enthalpy value of the space at any given time based on the dry-bulb temperature and humidity of the air at any given time.

[0182] As an optional embodiment, the air conditioning operating parameters include the air conditioning operating mode, the preset load correction amount includes the first heat generated by the heat source in the space and the second heat corresponding to the heat exchange between the inside and outside of the space, and the determining module 1002 is further configured to:

[0183] When the air conditioner is in cooling mode, the cooling capacity of the air conditioner within the first preset time period is determined based on the change in space load, the sum of the first heat and the second heat within the first preset time period.

[0184] When the air conditioner is in heating mode, the heating capacity of the air conditioner within the first preset time period is determined by the sum of the difference between the first heat and the second heat within the first preset time period and the change in space load.

[0185] As an optional embodiment, when the air conditioner is in cooling mode, the second heat exchange between the inside and outside of the space is the difference between the heat transfer due to the temperature difference between the inside and outside of the space and the heat infiltration of the air inside the space.

[0186] When the air conditioner is in heating mode, the second heat exchange between the inside and outside of the space is the sum of the heat transferred by the temperature difference between the inside and outside of the space and the heat infiltrated by the air inside the space.

[0187] As an optional embodiment, the air conditioning performance determining device is also configured to:

[0188] The air conditioner is controlled based on its energy output within a first preset time period.

[0189] As an optional embodiment, the space where the air conditioner is located is a test space, and the air conditioner performance determination device is further configured as follows:

[0190] Obtain the air conditioner's operating time, the temperature in the test space, and the air conditioner's set temperature;

[0191] When the running time is greater than or equal to the second preset time and the difference between the temperature in the test space and the set temperature of the air conditioner meets the difference threshold condition, the evaluation result of the air conditioner performance is output according to the energy output of the air conditioner in each first preset time within the second preset time.

[0192] When the runtime is greater than or equal to the second preset runtime, and the difference between the temperature in the test space and the set temperature of the air conditioner does not meet the difference threshold condition, an alarm message is output to indicate the test abnormality.

[0193] Regarding the air conditioning performance determination device in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the air conditioning performance determination method, and will not be elaborated here.

[0194] Based on the same inventive concept, this disclosure also provides a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the air conditioning performance determination method provided in this disclosure.

[0195] Based on the same inventive concept, this disclosure also provides an electronic device, comprising:

[0196] Storage device for storing computer programs;

[0197] An execution device is used to execute the computer program to implement the air conditioning performance determination method provided in this disclosure.

[0198] Figure 11 This is a block diagram illustrating an electronic device 1100 according to an exemplary embodiment. For example, the electronic device 1100 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0199] Reference Figure 11 The electronic device 1100 may include one or more of the following components: processing component 1102, memory 1104, power supply component 1106, multimedia component 1108, audio component 1110, input / output interface 1112, sensor component 1114, and communication component 1116.

[0200] Processing component 1102 typically controls the overall operation of electronic device 1100, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1102 may include one or more processors 1120 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1102 may include one or more modules to facilitate interaction between processing component 1102 and other components. For example, processing component 1102 may include a multimedia module to facilitate interaction between multimedia component 1108 and processing component 1102.

[0201] Memory 1104 is configured to store various types of data to support the operation of electronic device 1100. Examples of such data include instructions for any application or method operating on electronic device 1100, contact data, phonebook data, messages, pictures, videos, etc. Memory 1104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0202] Power supply component 1106 provides power to various components of electronic device 1100. Power supply component 1106 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1100.

[0203] Multimedia component 1108 includes a screen that provides an output interface between the electronic device 1100 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1108 includes a front-facing camera and / or a rear-facing camera. When the electronic device 1100 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0204] Audio component 1110 is configured to output and / or input audio signals. For example, audio component 1110 includes a microphone (MIC) configured to receive external audio signals when electronic device 1100 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1104 or transmitted via communication component 1116. In some embodiments, audio component 1110 also includes a speaker for outputting audio signals.

[0205] Input / output interface 1112 provides an interface between processing component 1102 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, start buttons, and lock buttons.

[0206] Sensor assembly 1114 includes one or more sensors for providing state assessments of various aspects of electronic device 1100. For example, sensor assembly 1114 may detect the on / off state of electronic device 1100, the relative positioning of components such as the display and keypad of electronic device 1100, changes in position of electronic device 1100 or a component of electronic device 1100, the presence or absence of user contact with electronic device 1100, the orientation or acceleration / deceleration of electronic device 1100, and temperature changes of electronic device 1100. Sensor assembly 1114 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1114 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1114 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0207] Communication component 1116 is configured to facilitate wired or wireless communication between electronic device 1100 and other devices. Electronic device 1100 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 1116 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1116 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0208] In an exemplary embodiment, the electronic device 1100 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described air conditioning performance determination method.

[0209] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1104 including instructions, which can be executed by a processor 1120 of an electronic device 1100 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0210] In another exemplary embodiment, a computer program product is also provided, the computer program product comprising a computer program executable by a programmable device, the computer program having a code portion for performing the above-described air conditioning performance determination method when executed by the programmable device.

[0211] Figure 12 This is a block diagram illustrating an apparatus 1900 for determining air conditioning performance according to an exemplary embodiment. For example, apparatus 1900 may be provided as a server. (Refer to...) Figure 12 The apparatus 1900 includes a processing component 1922, which further includes one or more processors, and memory resources represented by memory 1932 for storing instructions, such as application programs, that can be executed by the processing component 1922. The application programs stored in memory 1932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1922 is configured to execute instructions to perform the aforementioned air conditioning performance determination method.

[0212] Device 1900 may also include a power supply component 1926 configured to perform power management of device 1900, a wired or wireless network interface 1950 configured to connect device 1900 to a network, and an input / output interface 1958. Device 1900 can operate on an operating system, such as Windows Server, stored in memory 1932. TM Mac OS X TM Unix TM Linux TM FreeBSD TM Or similar.

[0213] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0214] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for determining air conditioning performance, characterized in that, include: Obtain the operating parameters of the air conditioner and the environmental parameters of the space where the air conditioner is located; Based on the environmental parameters, the operating parameters, and the space load model, the energy output of the air conditioner within a first preset time period is determined; wherein, the energy output is used to characterize the cooling or heating capacity of the air conditioner, and the space load model is used to determine the energy output in the following manner: Based on the environmental parameters, determine the spatial load change within the first preset time period; Based on the operating parameters, the change in space load within the first preset time period, and the preset load correction amount, the energy output of the air conditioner within the first preset time period is determined. The preset load correction amount is used to characterize the energy loss of the air conditioner caused by heat dissipation from the heat source in the space and / or heat exchange between the inside and outside of the space.

2. The method according to claim 1, characterized in that, Determining the spatial load change within the first preset time period based on the environmental parameters includes: Based on the environmental parameters, the spatial load of the space at a first moment and the spatial load of the space at a second moment are determined, and the time interval between the second moment and the first moment is the first preset duration. Based on the spatial load at the first time point and the second time point, determine the spatial load change within the first preset time period.

3. The method according to claim 2, characterized in that, The environmental parameters include atmospheric pressure, relative humidity, and dry-bulb temperature within the space. Based on these environmental parameters, the space load at the first moment and the space load at the second moment are determined, including: For any one of the first and second time points, the following steps are performed based on the environmental parameters to obtain the space load at that any one time point: Based on the dry-bulb temperature and relative humidity of the air at any given time, determine the enthalpy of the air in the space at any given time. Determine the average air density in the space at any given time based on the atmospheric pressure and the dry-bulb temperature of the air at any given time. The space load at any given time is determined based on the air enthalpy, the average air density, and the air volume of the space.

4. The method according to claim 3, characterized in that, Determining the enthalpy of the air in the space at any given time based on the dry-bulb temperature and relative humidity includes: The humidity content of the air in the space at any given time is determined based on the dry-bulb temperature and relative humidity of the air at any given time. The enthalpy of the air in the space at any given time is determined based on the dry-bulb temperature and humidity of the air at any given time.

5. The method according to claim 1, characterized in that, The air conditioning operating parameters include the air conditioning operating mode. The preset load correction includes the first heat generated by the heat source in the space and the second heat corresponding to the heat exchange between the inside and outside of the space. Based on the air conditioning operating parameters, the change in space load within the first preset time period, and the preset load correction, the energy output of the air conditioning within the first preset time period is determined, including: When the air conditioner is in cooling mode, the cooling capacity of the air conditioner within the first preset time period is determined based on the change in space load, the first heat, and the sum of the second heat within the first preset time period. When the air conditioner is in heating mode, the heating capacity of the air conditioner within the first preset time period is determined by the sum of the difference between the first heat and the second heat within the first preset time period and the change in space load.

6. The method according to claim 5, characterized in that, When the air conditioner is in cooling mode, the second heat exchange between the inside and outside of the space is the difference between the heat transfer due to the temperature difference between the inside and outside of the space and the heat infiltration of the air inside the space. When the air conditioner is in heating mode, the second heat exchange between the inside and outside of the space is the sum of the heat transfer due to the temperature difference between the inside and outside of the space and the heat infiltration of the air inside the space.

7. The method according to any one of claims 1-6, characterized in that, After determining the energy output of the air conditioner within a first preset time period based on the environmental parameters, the air conditioner operating parameters, and the space load model, the method further includes: The air conditioner is controlled based on its energy output within a first preset time period.

8. The method according to any one of claims 1-6, characterized in that, The space where the air conditioner is located is a test space. After determining the energy output of the air conditioner within a first preset time period based on the environmental parameters, the operating parameters, and the space load model, the method further includes: The running time of the air conditioner, the temperature in the test space, and the set temperature of the air conditioner are obtained. When the running time is greater than or equal to the second preset time, and the difference between the temperature in the test space and the set temperature of the air conditioner meets the difference threshold condition, the evaluation result of the air conditioner performance is output according to the energy output of the air conditioner in each first preset time within the second preset time. When the runtime is greater than or equal to the second preset runtime, and the difference between the temperature in the test space and the set temperature of the air conditioner does not meet the difference threshold condition, a warning message is output to indicate a test abnormality.

9. An air conditioning performance determining device, characterized in that, include: The acquisition module is configured to acquire the operating parameters of the air conditioner and the environmental parameters of the space where the air conditioner is located; The determining module is configured to determine the energy output of the air conditioner within a first preset time period based on the environmental parameters, the operating parameters, and the space load model; wherein the energy output is used to characterize the cooling or heating capacity of the air conditioner, and the space load model is used to determine the energy output in the following manner: Based on the environmental parameters, determine the spatial load change within the first preset time period; Based on the operating parameters, the change in space load within the first preset time period, and the preset load correction amount, the energy output of the air conditioner within the first preset time period is determined. The preset load correction amount is used to characterize the energy loss of the air conditioner caused by heat dissipation from the heat source in the space and / or heat exchange between the inside and outside of the space.

10. A computer-readable storage medium having computer program instructions stored thereon, characterized in that, When the program instructions are executed by the processor, they implement the air conditioning performance determination method according to any one of claims 1-8.

11. An electronic device, characterized in that, include: Storage device for storing computer programs; An execution device is used to execute the computer program to implement the air conditioning performance determination method according to any one of claims 1-8.

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