Relative humidity data prediction method, air conditioner and computer readable storage medium

Abstract

The invention relates to a relative humidity data prediction method, an air conditioner and a computer readable storage medium. The method comprises the steps that outdoor environment data of a geographic space area where the air conditioner is located is obtained; humidity related parameter data in the action space of the air conditioner are obtained; wherein the humidity related parameter data comprises values of related parameters capable of influencing the humidity in the action space; the operation duration of the air conditioner is determined based on the operation initial moment and the current moment of the air conditioner; and performing relative humidity prediction according to the outdoor environment data, the humidity related parameter data and the operation duration of the air conditioner to obtain relative humidity data of the action space at the current moment. According to the embodiment of the invention, the prediction method which is theoretically feasible and relatively low in prediction error of the relative humidity data is provided, and the requirement of the air conditioner for the relative humidity data under the condition that the humidity sensor is lacked is met.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning technology, and in particular to a relative humidity data prediction method, an air conditioner, and a computer-readable storage medium. Background Art

[0002] Existing air conditioners are generally equipped with temperature and humidity sensors to detect the temperature and humidity of the return air, so as to perform effective temperature control based on the temperature and humidity data. However, from the perspective of cost reduction, some air conditioners may lack humidity sensors and only control the temperature of the air conditioner from a temperature perspective. Although relying solely on temperature data can also guarantee the basic needs of air conditioner users, from a comfort perspective, because the temperature of the air conditioner cannot be controlled through temperature and humidity coupling, the comfort level of the air conditioner users needs to be improved. Therefore, when the air conditioner is not equipped with a humidity sensor, how to determine the humidity data is an urgent problem to be solved. Summary of the invention

[0003] The present specification aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the present specification is to propose a relative humidity data prediction method.

[0004] The second objective of this specification is to provide a relative humidity data prediction device.

[0005] The third object of this specification is to provide an air conditioner.

[0006] A fourth objective of this specification is to provide a computer-readable storage medium.

[0007] To achieve the above purpose, the first embodiment of the specification proposes a relative humidity data prediction method. The relative humidity data prediction method includes: obtaining outdoor environmental data of the geographical space where the air conditioner is located; obtaining humidity-related parameter data in the action space of the air conditioner; wherein the humidity-related parameter data includes the values ​​of related parameters that can affect the humidity in the action space; determining the operation time of the air conditioner based on the initial operation time of the air conditioner and the current time; performing relative humidity prediction based on the outdoor environmental data, the humidity-related parameter data and the operation time of the air conditioner to obtain the relative humidity data of the action space at the current time.

[0008] In some embodiments of the present specification, the outdoor environment data includes initial outdoor environment data of the air conditioner at the initial moment of operation and current outdoor environment data at the current moment; the relative humidity is predicted based on the outdoor environment data, the humidity-related parameter data and the operating time of the air conditioner to obtain the relative humidity data of the effective space at the current moment, including: relative humidity is predicted based on the initial outdoor environment data, the current outdoor environment data, the humidity-related parameter data and the operating time to obtain the relative humidity data of the effective space at the current moment.

[0009] In some embodiments of the present specification, the humidity-related parameter data include initial humidity-related parameter data of the air conditioner at the initial moment of operation and current humidity-related parameter data at the current moment; the relative humidity prediction based on the outdoor environment data, the humidity-related parameter data and the operating time of the air conditioner to obtain the relative humidity data of the effective space at the current moment includes: relative humidity prediction based on the outdoor environment data, the initial humidity-related parameter data, the current humidity-related parameter data and the operating time to obtain the relative humidity data of the effective space at the current moment.

[0010] In some embodiments of the present specification, the outdoor environment data include the initial outdoor environment data of the air conditioner at the initial moment of operation and the current outdoor environment data at the current moment; the humidity-related parameter data include the initial humidity-related parameter data of the air conditioner at the initial moment of operation and the current humidity-related parameter data at the current moment; the initial outdoor environment data include the initial outdoor temperature data and the initial outdoor relative humidity data at the initial moment of operation; the current outdoor environment data include the current outdoor temperature data and the current outdoor relative humidity data at the current moment; the initial humidity-related parameter data include the initial indoor temperature data and the initial indoor relative humidity data at the initial moment of operation; the current humidity-related parameter data include the current indoor temperature data, the current indoor humidity source data, the current indoor dehumidification data, the current indoor ventilation volume data, and the indoor space volume data corresponding to the action space at the current moment.

[0011] In some embodiments of the present specification, the relative humidity prediction is performed based on the outdoor environment data, the humidity-related parameter data, and the operating time of the air conditioner to obtain the relative humidity data of the effective space at the current moment, including: determining the initial outdoor absolute humidity data at the initial moment of the operation and the current outdoor absolute humidity data at the current moment based on the outdoor environment data; determining the relative humidity change rate and humidity change trend data of the effective space at the current moment, and the initial indoor absolute humidity data of the effective space at the initial moment of the operation based on the humidity-related parameter data; determining the relative humidity data based on the initial outdoor absolute humidity data, the current outdoor absolute humidity data, the relative humidity change rate, the humidity change trend data, and the initial indoor absolute humidity data.

[0012] In some embodiments of the present specification, the relative humidity data is determined based on the initial outdoor absolute humidity data, the current outdoor absolute humidity data, the relative humidity change rate, the humidity change trend data and the initial indoor absolute humidity data, including: determining a first sum of the current outdoor absolute humidity data and the relative humidity change rate; determining a first difference between a second sum of the initial outdoor absolute humidity data and the relative humidity change rate and the initial indoor absolute humidity data; and performing relative humidity prediction based on the first sum, the product of the first difference and the humidity change trend data, and the current indoor temperature data to obtain the relative humidity data of the action space at the current moment.

[0013] In some embodiments of this specification, the relative humidity data of the action space at the current moment is obtained by the following formula:

[0014]

[0015] Among them, RH in Represents the relative humidity data at the current moment; t in Indicates the current indoor temperature data; M out represents the current outdoor absolute humidity data; M out,0 represents the initial outdoor absolute humidity data; M in,0 represents the initial indoor absolute humidity data; S represents the current indoor moisture source data; D represents the current indoor dehumidification data; Q represents the current indoor ventilation volume data; V represents the indoor space volume data; t represents the operating time.

[0016] In some embodiments of the present specification, the initial outdoor environment data is determined by the initial weather forecast data of the geographic space area at the initial moment of the operation, or by the initial temperature and humidity data uploaded by the temperature and humidity sensor installed on the air conditioner outdoor unit at the initial moment of the operation; the current outdoor environment data is determined by the current weather forecast data of the geographic space area at the current moment, or by the current temperature and humidity data uploaded by the temperature and humidity sensor at the current moment.

[0017] In some embodiments of the present specification, the humidity-related parameter data includes current indoor dehumidification data of the action space at the current moment, and the method for determining the current indoor dehumidification data includes any one of the following: fitting a function of indoor dehumidification over time based on the change of condensation water weight over time during the operation of the air conditioner; determining the current indoor dehumidification data based on the change function of the indoor dehumidification over time and the operation time; or, obtaining the absolute humidity data of the air-conditioning outlet and the absolute humidity data of the air-conditioning outlet corresponding to different moments during the operation of the air conditioner; fitting a function of indoor dehumidification over time based on the humidity difference between the absolute humidity data of the air-conditioning outlet and the absolute humidity data of the air-conditioning outlet corresponding to the different moments and the time difference between the different moments and the initial moment of the air-conditioning operation, and determining the current indoor dehumidification data based on the change function of the indoor dehumidification over time and the operation time.

[0018] In some embodiments of the present specification, the current indoor ventilation volume data is determined based on the indoor space volume data and the current indoor ventilation frequency; the method for determining the current indoor ventilation frequency includes any one of the following: determining the current indoor ventilation frequency based on the mapping relationship between the number of doors and windows in the air-conditioning action space and the ventilation frequency; or determining the current indoor ventilation frequency based on the difference between the current outdoor temperature data and the current indoor temperature data, the current outdoor wind speed data, and the air tightness parameters in the air-conditioning action space.

[0019] To achieve the above-mentioned purpose, the second embodiment of the specification proposes a relative humidity data prediction device. The relative humidity data prediction device includes: an outdoor data acquisition module, which is used to acquire outdoor environmental data of the geographical space where the air conditioner is located; a humidity-related parameter acquisition module, which is used to acquire humidity-related parameter data in the effective space of the air conditioner; wherein the humidity-related parameter data includes the values ​​of related parameters that can affect the humidity in the effective space; an operation duration determination module, which is used to determine the operation duration of the air conditioner based on the initial operation time and the current time of the air conditioner; a relative humidity prediction module, which is used to perform relative humidity prediction based on the outdoor environmental data, the humidity-related parameter data and the operation time of the air conditioner to obtain the relative humidity data of the effective space at the current time.

[0020] To achieve the above-mentioned purpose, the third aspect embodiment of the present specification proposes an air conditioner, including a memory, a processor, and a relative humidity data prediction program stored in the memory and executable on the processor, and when the processor executes the relative humidity data prediction program, it implements the relative humidity data prediction method as described in any one of the first aspects.

[0021] To achieve the above-mentioned purpose, the fourth aspect of the present specification proposes a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the relative humidity data prediction method as described in any one of the first aspects is implemented.

[0022] Through the above embodiments, when the air conditioner cannot directly obtain the relative humidity in the working space through the humidity sensor, the outdoor environment data of the geographical space where the air conditioner is located, the humidity-related parameter data in the working space and the operation time of the air conditioner can be obtained, and the relative humidity data of the working space at the current moment can be obtained based on the outdoor environment data, the humidity-related parameter data and the operation time of the air conditioner. The embodiments of this specification provide a prediction method that is theoretically feasible and has a relatively low prediction error of relative humidity data, which makes up for the air conditioner's demand for relative humidity data when the humidity sensor is missing.

[0023] Additional aspects and advantages of the present specification will be given in part in the description below and in part will become apparent from the description below or will be learned through the practice of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The embodiment of this specification proposes a flow chart of a relative humidity data prediction method.

[0025] Figure 2 It is a schematic diagram of a mapping table of heat dissipation according to an embodiment of the present specification.

[0026] Figure 3 It is a schematic diagram of a mapping table of ventilation times according to an embodiment of the present specification.

[0027] Figure 4 It is a schematic diagram of a mapping table of building air tightness coefficients according to an embodiment of the present specification.

[0028] Figure 5 It is a flowchart of a relative humidity data prediction method according to an embodiment of the present specification.

[0029] Figure 6 This is a structural block diagram of a relative humidity data prediction device proposed in an embodiment of this specification.

[0030] Figure 7 is a structural block diagram of an air conditioner according to an embodiment of the present specification. DETAILED DESCRIPTION

[0031] The embodiments of the present specification are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present specification, and should not be construed as limiting the present specification.

[0032] Existing air conditioners are generally equipped with temperature and humidity sensors to detect the temperature and humidity of the return air, so as to adjust the temperature of the air conditioner based on the temperature and humidity data. However, from the perspective of cost reduction, some air conditioners may lack humidity sensors and only adjust the air conditioner from the temperature perspective to achieve the purpose of temperature adjustment.

[0033] If the air conditioner is only equipped with a temperature sensor but not a humidity sensor, although the temperature can meet the basic needs of the air conditioner user, from the perspective of comfort, the comfort level of the air conditioner user needs to be improved because the air conditioner cannot be temperature-controlled by coupling temperature and humidity. For example, some existing air conditioners use thermal comfort models to control the air conditioner temperature, such as the PMV model. For thermal comfort models that calculate thermal comfort, relative humidity is a very important input. Therefore, when the air conditioner is not equipped with a humidity sensor, how to determine the humidity data is an urgent problem to be solved.

[0034] Figure 1 This is a flow chart of a relative humidity data prediction method proposed in the embodiment of this specification. Figure 1 , the relative humidity data prediction method includes:

[0035] S110, obtaining outdoor environment data of the geographical space area where the air conditioner is located.

[0036] S120, obtaining humidity-related parameter data in the air-conditioning space.

[0037] The humidity-related parameter data include values ​​of related parameters that can affect the humidity in the action space.

[0038] S130: Determine the operating time of the air conditioner based on the initial operating time of the air conditioner and the current time.

[0039] S140, predicting the relative humidity based on the outdoor environment data, humidity-related parameter data, and the operating time of the air conditioner, to obtain the relative humidity data of the effective space at the current moment.

[0040] In the embodiments of this specification, the relative humidity data reflects the humidity conditions in the working space of the air conditioner. When the air conditioner is in operation, the factors that can usually affect the relative humidity in the working space of the air conditioner include the outdoor environment conditions, the environment conditions in the working space, and the impact of the air conditioner operation on the environment in the working space. Therefore, the embodiments of this specification predict the relative humidity data in the working space at the current moment based on the above factors.

[0041] Specifically, the outdoor environment data of the geographical space where the air conditioner is located is obtained, and the outdoor environment data includes but is not limited to any parameter that can affect the relative humidity in the air conditioner action space, such as outdoor temperature data, outdoor relative humidity data, outdoor wind speed, etc. Similarly, the humidity-related parameter data in the air conditioner action space is obtained, and the humidity-related parameter data includes the values ​​of related parameters that can affect the humidity in the action space, such as indoor temperature, indoor dehumidification amount, indoor ventilation amount, etc.

[0042] It is understandable that when the air conditioner is in operation, some parameters that can affect the relative humidity in its action space will be affected. Moreover, these parameters will change with the operation time of the air conditioner. Therefore, in the embodiment of this specification, the initial operation time of the air conditioner will also be recorded and obtained. The operation time of the air conditioner is determined based on the initial operation time and the current time.

[0043] Then, based on the outdoor environment data and considering the humidity-related parameter data determined after the air-conditioning operation time affects the relevant parameters in the action space, the relative humidity of the action space at the current moment is predicted to obtain the relative humidity data at the current moment.

[0044] Through the above embodiments, when the air conditioner cannot directly obtain the relative humidity in the working space through the humidity sensor, the outdoor environment data of the geographical space where the air conditioner is located, the humidity-related parameter data in the working space and the operation time of the air conditioner can be obtained, and the relative humidity data of the working space at the current moment can be obtained based on the outdoor environment data, the humidity-related parameter data and the operation time of the air conditioner. The embodiments of this specification provide a prediction method that is theoretically feasible and has a relatively low prediction error of relative humidity data, which makes up for the air conditioner's demand for relative humidity data when the humidity sensor is missing.

[0045] In some embodiments of the present specification, the outdoor environment data includes the initial outdoor environment data at the initial time of the operation of the air conditioner and the current outdoor environment data at the current time. The relative humidity is predicted based on the outdoor environment data, the humidity-related parameter data and the operation time of the air conditioner to obtain the relative humidity data of the action space at the current time, including: the relative humidity is predicted based on the initial outdoor environment data, the current outdoor environment data, the humidity-related parameter data and the operation time to obtain the relative humidity data of the action space at the current time.

[0046] In the embodiment of the present description, since the operation of the air conditioner will affect some relevant parameters in the action space, the relative humidity data at the current moment can be predicted based on the changes in the outdoor environment at the initial moment of the operation of the air conditioner and the outdoor environment at the current moment.

[0047] Specifically, the initial outdoor environment data of the geographical space where the air conditioner is located at the initial time of the operation of the air conditioner and the current outdoor environment data at the current time are obtained. The outdoor environment data includes the initial outdoor environment data and the current outdoor environment data. Therefore, the relevant humidity prediction can be performed based on the initial outdoor environment data, the current outdoor environment data, the humidity-related parameter data and the operation time, and the relevant humidity data of the action space at the current time is obtained.

[0048] In some embodiments of the present specification, the humidity-related parameter data includes initial humidity-related parameter data of the air conditioner at the initial moment of operation and current humidity-related parameter data at the current moment. Relative humidity prediction is performed based on outdoor environment data, humidity-related parameter data, and the operation time of the air conditioner to obtain relative humidity data of the action space at the current moment, including: relative humidity prediction is performed based on outdoor environment data, initial humidity-related parameter data, current humidity-related parameter data, and the operation time to obtain relative humidity data of the action space at the current moment.

[0049] Similarly, considering the influence of air conditioning, the relative humidity data at the current moment can also be predicted based on the humidity-related parameter data in the action space at the initial moment of the operation of the air conditioner and the change of the humidity-related parameter data at the current moment.

[0050] Specifically, the initial humidity-related parameter data at the initial moment of operation and the current humidity-related parameter data at the current moment in the air-conditioning action space are obtained. The humidity-related parameter data includes the initial humidity-related parameter data and the current humidity-related parameter data. Therefore, the relevant humidity prediction can be performed based on the outdoor environment data, the initial humidity-related parameter data, the current humidity-related parameter data and the operation time to obtain the relevant humidity data of the action space at the current moment.

[0051] In some embodiments, the outdoor environment data includes initial outdoor environment data and current outdoor environment data, and the humidity related parameter data includes initial humidity related parameter data and current humidity related parameter data. Therefore, the relevant humidity prediction can be performed based on the initial outdoor environment data, the current outdoor environment data, the initial humidity related parameter data, the current humidity related parameter data, and the running time to obtain the relevant humidity data of the action space at the current moment.

[0052] In some embodiments of the present specification, the outdoor environment data includes the initial outdoor environment data at the initial moment of the operation of the air conditioner and the current outdoor environment data at the current moment. The humidity-related parameter data includes the initial humidity-related parameter data of the air conditioner at the initial moment of the operation and the current humidity-related parameter data at the current moment. The initial outdoor environment data includes the initial outdoor temperature data and the initial outdoor relative humidity data at the initial moment of the operation. The current outdoor environment data includes the current outdoor temperature data and the current outdoor relative humidity data at the current moment. The initial humidity-related parameter data includes the initial indoor temperature data and the initial indoor relative humidity data at the initial moment of the operation. The current humidity-related parameter data includes the current indoor temperature data, the current indoor humidity source data, the current indoor dehumidification data, the current indoor ventilation volume data, and the indoor space volume data corresponding to the action space at the current moment.

[0053] Relative humidity refers to the percentage of water vapor pressure in the air to the saturated water vapor pressure at the same temperature, or the ratio of the absolute humidity of humid air to the maximum absolute humidity that can be reached at the same temperature. It can be seen that there is a correlation between relative humidity and absolute humidity, and absolute humidity is related to temperature in addition to relative humidity. In the related art, there is the following formula to calculate absolute humidity through relative humidity and temperature:

[0054]

[0055] Among them, M xRepresents the absolute humidity at the space and time represented by x; RH x represents the relative humidity at the space and time represented by x; t x represents the temperature at the space and time represented by x.

[0056] It can be seen from the above formula that absolute humidity and temperature are key factors affecting relative humidity. Absolute humidity is calculated through relative humidity. Therefore, in the embodiments of this specification, outdoor environment data may include outdoor relative humidity data and outdoor temperature data, and initial humidity-related parameter data in the action space may also include initial indoor temperature data and initial indoor relative humidity data.

[0057] Specifically, the initial outdoor environment data includes the initial outdoor temperature data and the initial outdoor relative humidity data at the initial time of operation. The current outdoor environment data includes the current outdoor temperature data and the current outdoor relative humidity data at the current time. The initial humidity-related parameter data includes the initial indoor temperature data and the initial indoor relative humidity data at the initial time of operation.

[0058] For the current humidity-related parameter data in the action space at the current moment, it is necessary to consider not only the current indoor temperature data, but also other factors that may affect the relative humidity at the current moment, such as the current indoor humidity source data that affect the humidity change, the current indoor dehumidification data, the current indoor ventilation data, the indoor space volume data corresponding to the action space, etc. Therefore, in the embodiments of this specification, the current humidity-related parameter data includes the current indoor temperature data, the current indoor humidity source data, the current indoor dehumidification data, the current indoor ventilation data, and the indoor space volume data corresponding to the action space at the current moment.

[0059] In some embodiments of the present specification, relative humidity prediction is performed based on outdoor environment data, humidity-related parameter data, and the operating time of the air conditioner to obtain relative humidity data of the effective space at the current moment, including: determining initial outdoor absolute humidity data at the initial moment of operation and current outdoor absolute humidity data at the current moment based on the outdoor environment data; determining the relative humidity change rate and humidity change trend data of the effective space at the current moment based on the humidity-related parameter data, and initial indoor absolute humidity data of the effective space at the initial moment of operation; determining relative humidity data based on the initial outdoor absolute humidity data, the current outdoor absolute humidity data, the relative humidity change rate, the humidity change trend data, and the initial indoor absolute humidity data.

[0060] Specifically, determining the initial outdoor absolute humidity data at the initial time of operation and the current outdoor absolute humidity data at the current time based on the outdoor environment data may include: determining the current outdoor absolute humidity data M according to the current outdoor temperature data and the current outdoor relative humidity data based on the above absolute humidity calculation formula; out .

[0061] in, RH out Indicates the current outdoor relative humidity data; t out Indicates the current outdoor temperature data.

[0062] Similarly, based on the above absolute humidity calculation formula, the initial outdoor absolute humidity data M is determined according to the initial outdoor temperature data and the initial outdoor relative humidity data. out，0 .

[0063] in, RH out，0 Represents the initial outdoor relative humidity data; t out,0 Indicates the initial outdoor temperature data.

[0064] Determining the initial indoor absolute humidity data of the action space at the initial time of operation based on the humidity-related parameter data includes: determining the initial indoor absolute humidity data M according to the initial indoor temperature data and the initial indoor related humidity data in，0 .

[0065] in, RH in，0 Represents the initial indoor humidity data; t in,0 Indicates the initial indoor temperature data.

[0066] Determine the relative humidity change rate of the action space at the current moment based on humidity-related parameter data, including: determine the relevant humidity change rate of the action space at the current moment based on the ratio between the difference between the current indoor humidity source data and the current indoor dehumidification data and the current indoor ventilation volume data.

[0067] Determine the humidity change trend data of the action space at the current moment based on the humidity related parameter data, including: determine the humidity change trend data of the action space at the current moment based on the current indoor ventilation volume data, indoor space volume data, and operation time.

[0068] Then, the relative humidity data can be determined based on the initial outdoor absolute humidity data, the current outdoor absolute humidity data, the relative humidity change rate, the humidity change trend data and the initial indoor absolute humidity data.

[0069] In some embodiments of the present specification, relative humidity data is determined based on initial outdoor absolute humidity data, current outdoor absolute humidity data, relative humidity change rate, humidity change trend data, and initial indoor absolute humidity data, including: determining a first sum of current outdoor absolute humidity data and relative humidity change rate; determining a second sum between the initial outdoor absolute humidity data and the relative humidity change rate and a first difference between the initial indoor absolute humidity data; and predicting relative humidity based on the first sum, the product of the first difference and the humidity change trend data, and current indoor temperature data to obtain relative humidity data of the action space at the current moment.

[0070] In addition, S represents the current indoor humidity source data; D represents the current indoor dehumidification data; Q represents the current indoor ventilation volume data; V represents the indoor space volume data; and t represents the operating time.

[0071] The relative humidity change rate can be expressed as The difference between the current indoor humidity source data S and the current indoor dehumidification data D represents the difference between the source of moisture in the air in the active space at the current moment and the amount of moisture removed from the air. If SD is a positive value, it means that more moisture is added to the air, and if SD is a negative value, it means that more moisture is removed. The current indoor ventilation volume data Q represents the amount of air entering or leaving the space through the ventilation system. Ventilation can affect the humidity in the air because it can bring in humidity from the external environment. Therefore, the use of this method in the embodiments of this specification can help evaluate the current relative humidity change rate of the air in the active space under specific conditions of air conditioning operation.

[0072] Based on the current indoor ventilation data, indoor space volume data, and operation time, the current indoor humidity change trend data can be determined using an exponential decay function. For example, the humidity change trend data can be expressed as

[0073] Therefore, determine the current outdoor absolute humidity data M out and relative humidity change rate The first sum of Determine the initial outdoor absolute humidity data M out，0 The relative humidity change rate The second sum of and the initial indoor absolute humidity data M in，0 The first difference between Afterwards, based on the first sum, the first difference and the humidity change trend data The product of time and current indoor temperature data t in Perform relative humidity prediction to obtain the relative humidity data RH of the action space at the current moment in .

[0074] In some embodiments of this specification, the relative humidity data of the action space at the current moment is obtained by the following formula:

[0075]

[0076] Among them, RH in Represents the relative humidity data at the current moment; t in Indicates the current indoor temperature data; M out Indicates the current outdoor absolute humidity data; M out,0 Represents the initial outdoor absolute humidity data; M in,0 represents the initial indoor absolute humidity data; S represents the current indoor moisture source data; D represents the current indoor dehumidification data; Q represents the current indoor ventilation volume data; V represents the indoor space volume data; t represents the operating time.

[0077] in, M in Represents the current indoor absolute humidity data. Through the above absolute humidity calculation formula, the current indoor absolute humidity data M can be obtained in and relative humidity data RH in , current indoor temperature data t in Since the current indoor absolute humidity data M in and the current outdoor absolute humidity data M out , initial outdoor absolute humidity data M out，0 And the initial indoor absolute humidity data M in，0 It can be expressed by the following formula:

[0078] Therefore, Substituting the above formula, we can get the relative humidity data RH in With the first sum First Difference Humidity trend data The product of time and current indoor temperature data t in The relationship between , thus obtaining the relative humidity data RH in .

[0079] In some embodiments of the present specification, the initial outdoor environment data is determined by the initial weather forecast data of the geographic space area at the initial time of operation, or by the initial temperature and humidity data uploaded by the temperature and humidity sensor installed on the air conditioner outdoor unit at the initial time of operation. The current outdoor environment data is determined by the current weather forecast data of the geographic space area at the current time, or by the current temperature and humidity data uploaded by the temperature and humidity sensor at the current time.

[0080] In the embodiments of the present specification, the outdoor environment data can be obtained based on the weather forecast data of the corresponding time in the geographic space area. In the case where the air conditioner outdoor unit is equipped with a temperature and humidity sensor, the outdoor environment data can also be obtained through the temperature and humidity data collected by the temperature and humidity sensor.

[0081] Specifically, the initial outdoor environment data can be determined by the initial weather forecast data of the geographic space area at the initial time of operation, or the initial temperature and humidity data uploaded by the temperature and humidity sensor at the initial time of operation. The current outdoor environment data can be determined by the current weather forecast data of the geographic space area at the current time, or the current temperature and humidity data uploaded by the temperature and humidity sensor at the current time.

[0082] Since the air conditioner has not yet taken effect on the space at the initial operation time, the initial indoor relative humidity data can directly use the initial outdoor relative humidity data. The initial indoor temperature data and the current temperature data can be obtained through the temperature sensor configured in the air conditioner indoor unit.

[0083] Taking household air conditioners as an example, if we do not consider factors such as air conditioning humidification in the air-conditioned space and moisture dissipation in the bathroom, and only consider the moisture dissipation of objects (usually people) in the air-conditioned space to determine the current indoor humidity source data S, we can refer to Figure 2 The heat dissipation table shown is used to determine the current indoor humidity source data S.

[0084] For example, assume that the ambient temperature is 26°C and the activity intensity is sitting still, which is the comfortable state for an adult man in the room. If there is only one adult man in the action space at this time, then Figure 2 The table can determine the current indoor humidity source data S = 68g / h = 0.018g / s. Therefore, when actually determining the current indoor humidity source data S, the number of objects in the action space must also be considered.

[0085] In some embodiments of the present specification, the humidity-related parameter data includes current indoor dehumidification data of the action space at the current moment, and the current indoor dehumidification data is determined in any of the following ways:

[0086] Based on the change of condensed water weight over time during the operation of the air conditioner, a function of the change of indoor dehumidification over time is fitted; based on the function of the change of indoor dehumidification over time and the operation time, the current indoor dehumidification data is determined.

[0087] Alternatively, the absolute humidity data of the air supply outlet and the absolute humidity data of the air outlet corresponding to different times during the operation of the air conditioner are obtained. Based on the humidity difference between the absolute humidity data of the air supply outlet and the absolute humidity data of the air outlet corresponding to different times and the time difference between different times and the initial time of the air conditioner operation, the function of the indoor dehumidification amount changing over time is fitted. Based on the function of the indoor dehumidification amount changing over time and the operation time, the current indoor dehumidification data is determined.

[0088] The current indoor dehumidification data D changes over time and can be expressed as: D = x + y·e z·t Among them, x, y, and z are three constant coefficients, which can be obtained by fitting experimental data.

[0089] In the embodiments of the present specification, if it is assumed that only air conditioning dehumidification is used in the air-conditioning action space, the values ​​of x, y, and z as three constant coefficients can be obtained by fitting in two ways.

[0090] Specifically, first, starting from the initial operation of the air conditioner, the change data of the condensed water weight over time during the operation of the air conditioner can be recorded based on a preset frequency to obtain several data sets of condensed water weight and duration. Among them, the condensed water weight can be regarded as the dehumidification amount in the action space, and the duration is determined by the time difference between the recording time and the initial operation time. Based on several data sets of condensed water weight and duration, the function of the change of indoor dehumidification amount over time can be fitted, and the values ​​of x, y, and z as three constant coefficients can be determined.

[0091] Secondly, the dehumidification function can also be fitted based on the difference in absolute humidity between the air supply and outlet of the air conditioner. For example, the absolute humidity data of the air supply and outlet of the air conditioner corresponding to different times during the operation of the air conditioner are obtained. The humidity difference between the absolute humidity data of the air supply and outlet of the air conditioner corresponding to different times, and the time difference between different times and the initial time of the air conditioner operation are recorded to obtain several data sets of dehumidification and duration. Therefore, the function of the indoor dehumidification over time can be fitted based on several data sets, and the values ​​of the three constant coefficients x, y, and z can be determined.

[0092] It is understandable that the three constant coefficients x, y, and z will vary depending on the type of air conditioner and the dehumidification performance in the action space.

[0093] For example, if x=0.018, y=0.6, z=-0.0017 is determined by fitting based on any of the above methods in this specification, then the current indoor dehumidification data D=0.018+0.6·e -0.0017·t According to the running time t of the air conditioner, the current indoor dehumidification data D at the current moment can be obtained.

[0094] In some embodiments of the present specification, the current indoor ventilation volume data is determined based on the indoor space volume data and the current indoor ventilation times. The current indoor ventilation times can be determined in any of the following ways:

[0095] Based on the mapping relationship between the number of doors and windows in the air-conditioning space and the ventilation frequency, the current indoor ventilation frequency is determined.

[0096] Alternatively, the current indoor ventilation times are determined based on the difference between the current outdoor temperature data and the current indoor temperature data, the current outdoor wind speed data, and the air tightness parameters in the air-conditioning action space.

[0097] In the embodiments of this specification, two methods for determining the current indoor ventilation number n are provided:

[0098] First, the current indoor ventilation volume data Q is generally related to the indoor space volume data V in the air conditioner's effective space. The indoor space volume data V can be obtained through actual measurement, or the indoor space volume of the effective space can be estimated based on the air conditioner model number. The current indoor ventilation volume data Q is generally obtained by multiplying the indoor space volume data V and the current indoor ventilation number n in the effective space, that is, Q = V n.

[0099] Since the number of indoor ventilation changes is closely related to the number of doors and windows in the room, the current number of indoor ventilation changes can be determined based on historical experience. Figure 3 , Figure 3 The table shows the mapping relationship between the number of faces of the external enclosure structure with doors and windows in the room and the number of ventilation times. Figure 3 The mapping relationship table shown can directly determine the current indoor ventilation times n.

[0100] Secondly, the current indoor ventilation times n can be estimated based on the current indoor and outdoor temperature difference and outdoor wind speed. The following formula is the current indoor ventilation times n and the current outdoor temperature data t out , current indoor temperature data t in And the current outdoor wind speed data v: n = a + b · v + c · (t out -t in ). The current outdoor wind speed data v may be the current outdoor average wind speed, which is obtained through the current weather forecast data.

[0101] Among them, a, b, and c are the three correlation coefficients of building air tightness. The values ​​of a, b, and c can be obtained by Figure 4 The air tightness of the building is determined by the table. Figure 4As shown in the figure, if the air tightness of the air-conditioning space is good, then a = 0.15, b = 0.01, c = 0.007. If the air tightness of the air-conditioning space is average, then a = 0.2, b = 0.015, c = 0.014. If the air tightness of the air-conditioning space is poor, then a = 0.25, b = 0.02, c = 0.022.

[0102] In a specific embodiment, a relative humidity prediction model can be constructed based on the calculation formula of the relative humidity data. And the relative humidity prediction model is deployed in the air conditioner, server or user end. Figure 5 Taking household air conditioners and people as an example, the relative humidity data prediction method may further include the following steps:

[0103] S510: The air conditioner starts to operate in response to the start instruction.

[0104] S520, when the air conditioner needs to use relative humidity data, obtain the initial weather forecast data at the initial time of operation, the current weather forecast data at the current time, the number of people in the action space, the indoor air tightness, the indoor space volume data, and the operation time, and input them into the relative humidity prediction model. Among them, the initial weather forecast data includes the initial outdoor temperature data and the initial outdoor relative humidity data; the current weather forecast data includes the current outdoor temperature data, the current outdoor relative humidity data, and the current outdoor wind speed data; the initial indoor relative humidity data is equal to the initial outdoor relative humidity data.

[0105] S530, obtaining the output of the relative humidity model, and obtaining the relative humidity data of the action space at the current moment.

[0106] Corresponding to the above embodiment, the second embodiment of the specification further proposes a relative humidity data prediction device. Figure 6 , the relative humidity data prediction device comprises:

[0107] The outdoor data acquisition module 610 is used to acquire the outdoor environment data of the geographical space area where the air conditioner is located.

[0108] The humidity-related parameter acquisition module 620 is used to acquire humidity-related parameter data in the air-conditioning effective space.

[0109] The humidity-related parameter data include values ​​of related parameters that can affect the humidity in the action space.

[0110] The operation duration determination module 630 is used to determine the operation duration of the air conditioner based on the initial operation time of the air conditioner and the current time.

[0111] The relative humidity prediction module 640 is used to predict the relative humidity based on the outdoor environment data, humidity-related parameter data and the operation time of the air conditioner, and obtain the relative humidity data of the action space at the current moment.

[0112] Through the above embodiments, when the air conditioner cannot directly obtain the relative humidity in the working space through the humidity sensor, the outdoor environment data of the geographical space where the air conditioner is located, the humidity-related parameter data in the working space and the operation time of the air conditioner can be obtained, and the relative humidity data of the working space at the current moment can be obtained based on the outdoor environment data, the humidity-related parameter data and the operation time of the air conditioner. The embodiments of this specification provide a prediction method that is theoretically feasible and has a relatively low prediction error of relative humidity data, which makes up for the air conditioner's demand for relative humidity data when the humidity sensor is missing.

[0113] For the specific definition of the relative humidity data prediction device, please refer to the definition of the relative humidity data prediction method above, which will not be repeated here. Each module in the above relative humidity data prediction device can be implemented in whole or in part by software, hardware and a combination thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0114] Corresponding to the above embodiment, the embodiment of this specification also provides an air conditioner.

[0115] Figure 7 is a structural block diagram of an air conditioner according to an embodiment of the present specification, such as Figure 7 As shown, the air conditioner 700 includes a memory 704, a processor 702, and a relative humidity data prediction program 706 stored in the memory 704 and executable on the processor 702. When the processor 702 executes the relative humidity data prediction program 706, the relative humidity data prediction method of any of the above-mentioned embodiments is implemented.

[0116] According to the air conditioner of the embodiment of the present specification, when the processor 702 executes the relative humidity data prediction program 706, when the air conditioner cannot directly obtain the relative humidity in the effective space through the humidity sensor, it can obtain the outdoor environment data of the geographic space area where the air conditioner is located, the humidity-related parameter data in the effective space and the operating time of the air conditioner, and perform relative humidity prediction based on the outdoor environment data, the humidity-related parameter data and the operating time of the air conditioner to obtain the relative humidity data of the effective space at the current moment.

[0117] Corresponding to the above embodiments, the embodiments of this specification further propose a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, any relative humidity data prediction method as described above is implemented.

[0118] According to the computer-readable storage medium of the embodiment of the present specification, when the computer program is executed by the processor, in the case that the air conditioner cannot directly obtain the relative humidity in the effective space through the humidity sensor, it is possible to obtain the outdoor environmental data of the geographic space area where the air conditioner is located, the humidity-related parameter data in the effective space and the operating time of the air conditioner, and perform relative humidity prediction based on the outdoor environmental data, the humidity-related parameter data and the operating time of the air conditioner to obtain the relative humidity data of the effective space at the current moment.

[0119] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0120] It should be understood that various parts of this specification can be implemented in hardware, software, firmware or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0121] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this specification. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0122] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this specification and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this specification.

[0123] In addition, the terms "first", "second", etc. used in the embodiments of this specification are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in this embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of this specification can explicitly or implicitly indicate that the embodiment includes at least one of the features. In the description of this specification, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0124] In this specification, unless otherwise clearly specified or limited in the embodiments, the terms "install", "connect", "connect" and "fix" etc. appearing in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to the specific implementation situation.

[0125] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0126] Although the embodiments of the present specification have been shown and described above, it is understood that the above embodiments are exemplary and are not to be construed as limitations on the present specification. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present specification.

Claims

1. A relative humidity data prediction method, characterized in that: The method comprises: Obtain outdoor environmental data of the geographic space where the air conditioner is located; Acquire humidity-related parameter data in the action space of the air conditioner; wherein the humidity-related parameter data includes values ​​of related parameters that can affect the humidity in the action space; Determining the operation time of the air conditioner based on the initial operation time of the air conditioner and the current time; Relative humidity prediction is performed based on the outdoor environment data, the humidity-related parameter data, and the operating time of the air conditioner to obtain relative humidity data of the action space at the current moment.

2. The method according to claim 1, characterized in that The outdoor environment data includes the initial outdoor environment data of the air conditioner at the initial time of operation and the current outdoor environment data at the current time; the relative humidity prediction is performed according to the outdoor environment data, the humidity-related parameter data and the operation time of the air conditioner to obtain the relative humidity data of the action space at the current time, including: Relative humidity prediction is performed based on the initial outdoor environment data, the current outdoor environment data, the humidity-related parameter data, and the operating time to obtain relative humidity data of the action space at the current moment.

3. The method according to claim 1 or 2, characterized in that: The humidity-related parameter data includes initial humidity-related parameter data of the air conditioner at the initial moment of operation and current humidity-related parameter data at the current moment; the relative humidity prediction is performed according to the outdoor environment data, the humidity-related parameter data and the operation time of the air conditioner to obtain the relative humidity data of the action space at the current moment, including: Relative humidity prediction is performed based on the outdoor environment data, the initial humidity-related parameter data, the current humidity-related parameter data, and the operating time to obtain relative humidity data of the action space at the current moment.

4. The method according to claim 1, characterized in that: The outdoor environment data includes the initial outdoor environment data of the air conditioner at the initial time of operation and the current outdoor environment data at the current time; the humidity-related parameter data includes the initial humidity-related parameter data of the air conditioner at the initial time of operation and the current humidity-related parameter data at the current time; The initial outdoor environment data includes the initial outdoor temperature data and the initial outdoor relative humidity data at the initial moment of the operation; the current outdoor environment data includes the current outdoor temperature data and the current outdoor relative humidity data at the current moment; the initial humidity-related parameter data includes the initial indoor temperature data and the initial indoor relative humidity data at the initial moment of the operation; the current humidity-related parameter data includes the current indoor temperature data at the current moment, the current indoor humidity source data, the current indoor dehumidification data, the current indoor ventilation volume data, and the indoor space volume data corresponding to the action space.

5. The method according to claim 1, characterized in that The relative humidity prediction is performed according to the outdoor environment data, the humidity-related parameter data, and the operation time of the air conditioner to obtain the relative humidity data of the action space at the current moment, including: Determine, based on the outdoor environment data, initial outdoor absolute humidity data at the initial time of the operation and current outdoor absolute humidity data at the current time; Determine the relative humidity change rate and humidity change trend data of the action space at the current moment based on the humidity-related parameter data, and the initial indoor absolute humidity data of the action space at the initial moment of the operation; The relative humidity data is determined according to the initial outdoor absolute humidity data, the current outdoor absolute humidity data, the relative humidity change rate, the humidity change trend data and the initial indoor absolute humidity data.

6. The method according to claim 5, characterized in that The determining the relative humidity data according to the initial outdoor absolute humidity data, the current outdoor absolute humidity data, the relative humidity change rate, the humidity change trend data and the initial indoor absolute humidity data comprises: Determine a first sum value of the current outdoor absolute humidity data and the relative humidity change rate; Determine a first difference between a second sum of the initial outdoor absolute humidity data and the relative humidity change rate and the initial indoor absolute humidity data; Relative humidity prediction is performed based on the first sum value, the product of the first difference value and the humidity change trend data, and the current indoor temperature data to obtain the relative humidity data of the action space at the current moment.

7. The method according to claim 6, characterized in that The relative humidity data of the action space at the current moment is obtained by the following formula: Among them, RH in Represents the relative humidity data at the current moment; t in Indicates the current indoor temperature data; M out represents the current outdoor absolute humidity data; M out,0 represents the initial outdoor absolute humidity data; M in,0 represents the initial indoor absolute humidity data; S represents the current indoor moisture source data; D represents the current indoor dehumidification data; Q represents the current indoor ventilation volume data; V represents the indoor space volume data; t represents the operating time.

8. The method according to claim 4, characterized in that The initial outdoor environment data is determined by the initial weather forecast data of the geographic space area at the initial time of operation, or by the initial temperature and humidity data uploaded by the temperature and humidity sensor installed on the air-conditioning outdoor unit at the initial time of operation; the current outdoor environment data is determined by the current weather forecast data of the geographic space area at the current time, or by the current temperature and humidity data uploaded by the temperature and humidity sensor at the current time.

9. The method according to claim 1, characterized in that: The humidity-related parameter data includes current indoor dehumidification data of the action space at the current moment, and the current indoor dehumidification data is determined in any one of the following ways: Based on the change of the condensed water weight over time during the operation of the air conditioner, a function of the change of the indoor dehumidification amount over time is fitted; based on the change of the indoor dehumidification amount over time and the operation time, the current indoor dehumidification data is determined; or Obtaining the absolute humidity data of the air supply outlet and the absolute humidity data of the air outlet at different times during the operation of the air conditioner; fitting the change function of the indoor dehumidification amount over time based on the humidity difference between the absolute humidity data of the air supply outlet and the absolute humidity data of the air outlet at different times and the time difference between the different times and the initial time of the air conditioner operation; The current indoor dehumidification data is determined based on the change function of the indoor dehumidification amount over time and the operation time.

10. The method according to claim 5, characterized in that The current indoor ventilation volume data is determined based on the indoor space volume data and the current indoor ventilation times; the current indoor ventilation times may be determined in any of the following ways: Determine the current indoor ventilation frequency based on the mapping relationship between the number of doors and windows in the air-conditioning space and the ventilation frequency; or The current indoor ventilation times are determined based on the difference between the current outdoor temperature data and the current indoor temperature data, the current outdoor wind speed data, and the air tightness parameters in the air-conditioning action space.

11. An air conditioner, characterized in that: The method comprises a memory, a processor and a relative humidity data prediction program stored in the memory and executable on the processor. When the processor executes the relative humidity data prediction program, the relative humidity data prediction method according to any one of claims 1 to 10 is implemented.

12. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor, the relative humidity data prediction method as described in any one of claims 1 to 10 is implemented.

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