Air conditioner comfort control method and air conditioner

Abstract

The invention discloses a comfort control method of an air conditioner and the air conditioner, and the comfort control method of the air conditioner comprises the following steps: when the indoor environment temperature is in a steady state, recording each environment state and all set temperature changes corresponding to the environment state as an environment state-set temperature score table, the environment state comprises an indoor environment temperature and an outdoor environment temperature; and when the set temperature self-adjusting condition of the steady state is met, according to the current environment state, the set temperature with the optimal score is selected from the environment state-set temperature score table to serve as the set temperature of the air conditioner to control the air conditioner. According to the invention, the comfort adjustment habit of the user is recorded through the environment state-set temperature score table, so that comfort control strategies meeting different users can be formed for different users.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning control, and in particular to a comfort control method of an air-conditioning for different users. Background Art

[0002] In the current use of air conditioners, different set temperatures are required due to different perceptions of each user and different outdoor ambient temperatures. These solutions adapted to the personalized needs of each user cannot be tailored to each specific user before leaving the factory, which often leads to unreasonable temperature settings during the use of air conditioners.

[0003] The following are two common phenomena of unreasonable temperature setting.

[0004] 1. The user sets the air conditioner's set temperature to an extreme temperature.

[0005] Many users often want to quickly adjust the indoor ambient temperature by setting an extreme temperature value when the air conditioner is started, especially in the non-steady-state stage (i.e., the initial stage of the air conditioner). For example, in the hot summer, when the user just enters the room and feels hot, he may set the air conditioner temperature to an extremely low value, such as 16°C or 18°C, in the hope of cooling down quickly. However, this setting method has obvious hidden dangers. First, it causes energy waste. When the temperature is set to an extremely low temperature, the air conditioner's compressor will operate at the highest efficiency and continue to lower the indoor temperature until the set value is reached. However, due to the large temperature difference between the room temperature and the set temperature, the compressor needs to work for a long time to approach the target temperature, which directly leads to a large amount of energy consumption. At the same time, in actual situations, users usually adjust the temperature manually after the room temperature drops to a comfortable range, so this extreme setting usually leads to energy waste. Second, it causes excessive equipment load. When the air conditioner runs for a long time at an extremely low temperature, the compressor will be in a high-load state, which not only accelerates the wear of the equipment and shortens its service life, but may also trigger problems such as overheating protection, affecting the stability of the air conditioner.

[0006] 2. The user frequently adjusts the set temperature of the air conditioner.

[0007] When using air conditioners, users often adjust the set temperature frequently based on their immediate feelings. The user's perceived temperature is affected by many factors, such as fluctuations in the external ambient temperature, the amount of activity of people in the room, changes in solar radiation, etc. This leads to frequent adjustments in the set temperature, but since such adjustments often lack scientific basis, it is easy to cause the indoor temperature to fluctuate. Frequent temperature adjustments may cause large fluctuations in indoor temperature, making it impossible to form a stable and comfortable environment. At the same time, frequent temperature adjustments cause the air conditioning system to constantly switch between different set points, making it difficult to achieve an efficient steady-state operation state.

[0008] Therefore, how to control the comfort of the air conditioner according to the actual situation of each user is a technical problem to be solved. Summary of the invention

[0009] In order to solve the technical problem in the prior art that an air conditioner cannot perform comfort control according to the actual situation of each user, the present invention provides a comfort control method for an air conditioner and an air conditioner.

[0010] The air conditioning comfort control method proposed by the present invention comprises:

[0011] When the indoor ambient temperature is in a steady state, each ambient state and all set temperature changes corresponding to the ambient state are recorded as an ambient state-set temperature score table, wherein the ambient state includes the indoor ambient temperature and the outdoor ambient temperature;

[0012] When the set temperature self-regulation condition of the steady state is met, the set temperature with the best score is selected from the environmental state-set temperature scoring table as the set temperature of the air conditioner to control the air conditioner according to the current environmental state.

[0013] Further, the environmental state-set temperature score table includes:

[0014] When the environmental state-set temperature scoring table does not exist, create the environmental state-set temperature scoring table, set each set temperature as a column, each environmental state as a row, or set each set temperature as a row, each link state as a column; the initial values ​​of the elements corresponding to each row and column are the same;

[0015] When the indoor ambient temperature just enters the steady state, record the ambient state and set temperature at that time;

[0016] If the user adjusts the set temperature, the set temperature before adjustment is subtracted from the current set temperature to obtain a corresponding score, and the elements corresponding to the current environmental state and the set temperature before adjustment in the environmental state-set temperature score table are added to the score.

[0017] Further, selecting the set temperature with the best score includes the steps of:

[0018] Find the scores of all set temperatures corresponding to the current environmental state in the environmental state-set temperature score table;

[0019] The set temperature with the score closest to the initial value is selected as the set temperature with the best score.

[0020] Furthermore, when there are multiple set temperatures with scores closest to the initial value, one of the set temperatures is randomly selected as the set temperature with the best score.

[0021] Furthermore, when there are multiple set temperatures whose scores are closest to the initial value, the number of valid adjacent set temperatures of each set temperature is counted, and the set temperature with the most valid adjacent set temperatures is selected as the set temperature with the best score; the score of the valid adjacent set temperature is not the initial value, and there is no set temperature with a score of the initial value between the corresponding set temperature with a score closest to the initial value.

[0022] Furthermore, one of the environmental states is an indoor ambient temperature range and an outdoor ambient temperature range.

[0023] Furthermore, the set temperature self-regulation condition for satisfying the steady state is specifically that the accumulated historical operating time of the air conditioner is greater than the target operating time.

[0024] Furthermore, when the air conditioner is turned on, if the absolute value of the difference between the indoor ambient temperature at the time of turning on and the set temperature is less than or equal to the preset difference, it is determined that the indoor ambient temperature has entered a steady state; otherwise, it is determined that the indoor ambient temperature is in a non-steady state;

[0025] When the indoor ambient temperature is in a non-steady state, the temperature difference between the current moment and the previous moment is calculated at a certain interval;

[0026] Select a sliding window with a unit length of n, calculate the average value of n temperature differences in each sliding window, and draw a temperature difference sliding mean curve based on the average value of each sliding window. When the absolute value of a point on the temperature difference sliding mean curve is less than or equal to the preset threshold, the point is the judgment point from non-steady state to steady state, and the indoor ambient temperature enters a steady state.

[0027] Furthermore, when the indoor ambient temperature is in a non-steady state, the current indoor ambient temperature and compressor operating parameters are obtained in real time;

[0028] Calculate the absolute value of the difference between the indoor ambient temperature and the set temperature at the time of startup, and use it as the denominator;

[0029] Calculate the difference between the current indoor ambient temperature and the set temperature in real time and use it as the numerator;

[0030] Divide the numerator by the denominator and multiply it by the compressor operating parameter correction value. Use the result to correct the compressor operating parameter. If the corrected compressor operating parameter is greater than the corresponding maximum allowable limit, the maximum allowable limit is taken.

[0031] Further, the compressor operating parameter is the compressor operating frequency, or the target high pressure of the compressor, or the target low pressure of the compressor.

[0032] The air conditioner provided by the present invention comprises a controller, and the controller adopts the air conditioner comfort control method of the above technical solution to control the air conditioner.

[0033] The present invention divides the operation of the air conditioner into two states: steady state and non-steady state. In the steady state, by learning the user's adjustment of the set temperature and then summarizing the optimal set temperature, the user's comfort can be automatically adjusted according to the data of each user during the self-adjustment process. Furthermore, the present invention also performs rapid temperature control for the non-steady state process, selects the corresponding compressor operating frequency correction, so that the indoor ambient temperature meets the user's comfort requirements as soon as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0035] Figure 1 It is a main flow chart of an embodiment of the present invention.

[0036] Figure 2 is a detailed flow chart of an embodiment of the present invention.

[0037] Figure 3 Schematic diagram of the initial state of the environmental state-set temperature scoring table according to an embodiment of the present invention.

[0038] Figure 4 It is a state diagram of adding a new row to the environmental state-set temperature score table according to an embodiment of the present invention.

[0039] Figure 5 It is a state diagram of adding multiple rows to the environmental state-set temperature score table according to an embodiment of the present invention.

[0040] Figure 6 It is a schematic diagram of the state of changing one element of the environmental state-set temperature scoring table according to an embodiment of the present invention.

[0041] Figure 7 It is a schematic diagram of the state of the environmental state-set temperature scoring table in one embodiment of the present invention when in use. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0044] The present invention aims at the problem of unreasonable temperature setting by users during the use of air conditioners, which not only reflects the high requirements of users for indoor comfortable environment, but also exposes the shortcomings of current air conditioner control systems in meeting users' personalized needs and dynamic needs. Providing more intelligent and flexible temperature control solutions according to users' actual needs has become an important research direction for improving user experience, extending equipment life, and saving energy and reducing emissions.

[0045] like Figure 1 As shown, the comfort control method of the air conditioner of the present invention includes the following steps.

[0046] When the indoor ambient temperature is in a steady state, each ambient state and all set temperature changes corresponding to the ambient state are recorded as an ambient state-set temperature score table, where the ambient state includes the indoor ambient temperature and the outdoor ambient temperature;

[0047] When the set temperature self-regulation condition of the steady state is met, the set temperature with the best score is selected from the environmental state-set temperature scoring table as the set temperature of the air conditioner to control the air conditioner according to the current environmental state.

[0048] When the indoor ambient temperature is in a steady state, it can be known from its surface textual meaning that, according to common sense, the indoor ambient temperature does not need to be adjusted at this time. If the set temperature corresponding to the environmental state corresponding to the indoor ambient temperature changes at this time, it means that the set temperature at this time is uncomfortable for the current user, so the present invention records the change of the set temperature as an environmental state-set temperature scoring table. When the air conditioner needs to adjust itself, the set temperature with the best current environmental state score can be selected as the set temperature of the air conditioner according to the environmental state-set temperature scoring table to control the air conditioner. Since the set temperature with the best score in the environmental state-set temperature scoring table is the most comfortable set temperature for the corresponding individual user, this will enable the automatic control of the air conditioner to adjust in the direction that is most comfortable for the individual user.

[0049] In one embodiment, recording the environmental status-set temperature score table includes the following steps.

[0050] When the environmental state-set temperature scoring table does not exist, create an environmental state-set temperature scoring table, set each set temperature as a column, each environmental state as a row, or set each set temperature as a row, each link state as a column; the initial value of the elements corresponding to each row and column is the same. Since the number of set temperature options is more limited than that of environmental states, it is a preferred embodiment to use each set temperature as a column and each environmental state as a row.

[0051] Every time the indoor ambient temperature just enters the steady state, record the ambient state and set temperature at this time; it should be noted that the record here does not necessarily mean that the ambient state and set temperature are recorded in the ambient state-set temperature scoring table. Take the ambient state-set temperature scoring table with a set temperature as a column and each ambient state as a row as an example. If the corresponding ambient state row and the corresponding set temperature column already exist in the ambient state-set temperature scoring table, there is no need to modify or update the ambient state-set temperature scoring table, and the ambient state and set temperature at this time can be recorded elsewhere. If the corresponding ambient state row and the corresponding set temperature column do not exist in the ambient state-set temperature scoring table, it is necessary to add the corresponding ambient state row and the corresponding set temperature column in the ambient state-set temperature scoring table. However, it is also necessary to record the ambient state and set temperature at this time elsewhere.

[0052] If the user adjusts the set temperature, the set temperature before adjustment is subtracted from the current set temperature to obtain a corresponding score, and the elements corresponding to the current environmental state and the set temperature before adjustment in the environmental state-set temperature score table are added to the score.

[0053] This embodiment is a specific recording embodiment of a specific environmental state-set temperature score table. Since this embodiment adopts the method of subtracting the set temperature before adjustment from the current set temperature to obtain the corresponding score, and then accumulating the corresponding score on the basis of the original calculation, the final score may be positive or negative. Therefore, the set temperature with a larger score is not the optimal set temperature. In other embodiments, the initial value may be set to 0 or a positive number, and then the value obtained by subtracting the set temperature before adjustment from the current set temperature is given a corresponding negative score. Because the corresponding set temperature is adjusted, it must be that the user is not so satisfied with the set temperature in the current environmental state. At this time, a negative score of the corresponding amount is used, so that the set temperature with the largest score corresponding to the environmental state can be the optimal set temperature. In comparison, it is relatively simple to directly use the current set temperature minus the set temperature before adjustment to obtain the corresponding score.

[0054] In one embodiment, selecting the optimally rated set temperature comprises the following steps.

[0055] Find the scores of all set temperatures corresponding to the current environmental state in the environmental state-set temperature score table;

[0056] The set temperature with the score closest to the initial value is selected as the set temperature with the best score.

[0057] Since the present invention directly subtracts the set temperature before adjustment from the current set temperature to obtain the corresponding score, the set temperature whose score is closest to the initial value is the set temperature that is less adjusted by the user, and is more suitable for the corresponding user under this environmental condition, and better meets the comfort needs of the corresponding user.

[0058] In one embodiment, when there are multiple set temperatures with scores closest to the initial value, one of the set temperatures is randomly selected as the set temperature with the best score.

[0059] When there are multiple people at home, different people will have different settings when adjusting the set temperature they feel comfortable with. Therefore, there may be multiple set temperatures with the best scores in the environmental status-set temperature scoring table. In this case, one of the set temperatures can be randomly selected as the set temperature with the best score. Once the user feels that the set temperature is inappropriate, he or she can adjust it independently, and then the environmental status-set temperature scoring table will be updated to obtain a more accurate set temperature with the best score.

[0060] In one embodiment, when there are multiple set temperatures with scores closest to the initial value, the number of valid adjacent set temperatures of each set temperature is counted, and the set temperature with the most valid adjacent set temperatures is selected as the set temperature with the best score.

[0061] The effective adjacent set temperatures referred to in the present invention do not have a score equal to the initial value, and there is no set temperature with a score equal to the initial value between the set temperatures with the corresponding scores closest to the initial value.

[0062] In this embodiment, the situation considered is that it takes a certain amount of time to accumulate data in the environmental status-set temperature score table, and there are some extreme setting values ​​that have a relatively lack of data accumulation opportunities. For example, the set temperature is a relatively extreme setting value such as 16, 17, 30, etc. Some users may seldom set the air conditioner to this set temperature. At this time, it can be counted which set temperature is closer to the set temperature often set by the user, which means that the set temperature is more likely to be the set temperature that the user often uses and rarely adjusts, thereby eliminating the possibility that the user sets an inappropriate extreme value as the set temperature due to insufficient data accumulation.

[0063] In one embodiment, an environmental state is an indoor ambient temperature range and an outdoor ambient temperature range.

[0064] Since the environmental state is composed of indoor ambient temperature and outdoor ambient temperature, there are many indoor ambient temperatures and many outdoor ambient temperatures, and there are more combinations of the two. This will result in too many rows or columns in the environmental state-set temperature score table and too detailed distinctions. Therefore, a combination of the indoor environmental temperature interval and the outdoor ambient temperature interval is used to form an environmental state, which can effectively summarize different situations and reduce unnecessary environmental state segmentation.

[0065] In one embodiment, when the air conditioner is turned on, if the absolute value of the difference between the indoor ambient temperature at the time of startup and the set temperature is less than or equal to the preset difference, the indoor ambient temperature is judged to be in a steady state; otherwise, the indoor ambient temperature is judged to be in a non-steady state.

[0066] When the indoor ambient temperature is in a non-steady state, the temperature difference between the current moment and the previous moment is calculated at a certain interval;

[0067] Select a sliding window with a unit length of n, calculate the average value of n temperature differences in each sliding window, and draw a temperature difference sliding mean curve based on the average value of each sliding window. When the absolute value of a point on the curve is less than or equal to the preset threshold, the point is the judgment point from non-steady state to steady state, and the indoor ambient temperature enters a steady state.

[0068] This embodiment describes a specific technical solution for distinguishing between a steady state and an unsteady state. A steady state means that the indoor ambient temperature is theoretically in a state where no adjustment is required, and an unsteady state means that the indoor ambient temperature is theoretically in a state where adjustment is required. This embodiment uses a sliding window to draw a temperature difference sliding mean curve, which can obtain a more accurate judgment point, thereby more accurately distinguishing between a steady state and an unsteady state.

[0069] In one embodiment, when the indoor ambient temperature is in a non-steady state, the current indoor ambient temperature and compressor operating parameters are obtained in real time;

[0070] Calculate the absolute value of the difference between the indoor ambient temperature and the set temperature at the time of startup, and use it as the denominator;

[0071] Calculate the difference between the current indoor ambient temperature and the set temperature in real time and use it as the numerator;

[0072] Divide the numerator by the denominator and multiply it by the compressor operating parameter correction value. Use the result to correct the compressor operating parameter. If the corrected compressor operating parameter is greater than the corresponding maximum allowable limit, the maximum allowable limit is taken.

[0073] For non-steady-state conditions, users have an urgent need to adjust the indoor ambient temperature. Therefore, in this embodiment, the difference between the current indoor ambient temperature and the set temperature is used as the numerator, and the absolute value of the difference between the indoor ambient temperature and the set temperature at the time of startup is used as the denominator, so that the numerator divided by the denominator at the time of startup is the maximum value, thereby making the compressor operating parameter correction value the maximum value. As the difference between the indoor ambient temperature and the set temperature gradually decreases after startup, the value of the numerator divided by the denominator becomes smaller and smaller, thereby making the compressor operating parameter correction value smaller and smaller, and the compressor operating parameters are dynamically adjusted to match the user's comfort requirements.

[0074] In one embodiment, the compressor operating parameter may be the compressor operating frequency, or the target high pressure of the compressor, or the target low pressure of the compressor.

[0075] By adjusting the compression operation frequency, which has a direct impact on the indoor ambient temperature, etc., the indoor ambient temperature can be quickly adjusted to achieve the comfort level desired by the user.

[0076] The present invention also protects an air conditioner, which includes a controller. The controller uses the air conditioner comfort control method of the present invention to control the air conditioner.

[0077] Figure 2 A preferred embodiment of the present invention is shown. Figure 2 The concept of the present invention is described with reference to specific embodiments.

[0078] When the air conditioner is just turned on, it is first identified whether the air conditioner is in a steady-state phase or a non-steady-state phase during operation.

[0079] When the air conditioner is turned on, the indoor ambient temperature at the time of startup is compared with the set temperature. If the absolute value of the difference between the two is less than or equal to x, it is judged to be a steady state, otherwise it is an unsteady state; x is a preset difference, and x can be 1, 2, etc. The specific value can be determined by those skilled in the art as needed. For example, when the room temperature is 30°C and the set temperature is 24°C, the absolute value of the difference between the two is 6, which is greater than 2°C, then the startup time is in an unsteady state; in this embodiment, the temperature difference between the indoor ambient temperature and the set temperature is used to judge the steady state and the unsteady state. In other embodiments, other parameters can also be used for judgment, such as the time when the current indoor ambient temperature reaches the set temperature, etc.

[0080] When the starting point of the current stage is determined to be a non-steady state, the moment when the indoor ambient temperature reaches a steady state is determined by the following method.

[0081] Select the time step t, which can be 1 minute, 2 minutes, etc.

[0082] Starting from the second moment, calculate the temperature difference between the indoor ambient temperature at the current moment and the previous moment;

[0083] Select the sliding window unit length n, where n is the unit length of the sliding window and can be 2, 3, 4, etc., that is, the number of temperature differences included. Calculate the average of the temperature differences between the current moment and the previous n-1 moments according to the sliding window unit length. When the number of existing temperature differences is less than the sliding window unit length, take the average of all known temperature differences as the sliding window mean at the current moment.

[0084] Draw a temperature difference sliding mean curve. When the absolute value of a point on the curve is less than or equal to the preset threshold, that is, the absolute value of a point is a positive number close to 0, then this point is the judgment point when the indoor ambient temperature enters a steady state from an unsteady state.

[0085] When the indoor ambient temperature is in a non-steady-state stage, rapid cooling can be achieved by correcting the compressor operating frequency.

[0086] Get the current indoor ambient temperature in real time;

[0087] Get the current compressor operating frequency in real time;

[0088] The absolute value of the difference between the indoor ambient temperature and the set temperature at the initial startup time is calculated as the denominator, and the absolute value of the difference between the indoor ambient temperature and the set temperature is calculated in real time as the numerator;

[0089] Divide the numerator by the denominator, and then multiply it by the compressor frequency correction value. The compressor frequency correction value can be 5Hz, 10Hz, etc., and round it up and send it to the unit control module. The compressor is corrected according to the current operating frequency. The correction method is the current actual operating frequency plus the compressor frequency correction value. If the maximum operating frequency is exceeded after correction, the maximum operating frequency is taken; for example, the current set temperature is 26℃, the current room temperature is 30℃, and the initial room temperature at the start-up time is 34℃, then the compressor correction value after adjustment is (4 / 8)*10=5Hz;

[0090] When the indoor ambient temperature enters a steady state, the correction of the compressor frequency is cleared.

[0091] When the indoor ambient temperature is in a steady state, the user's dynamic thermal comfort needs are met by automatically adjusting the air-conditioning set temperature. This method requires the user to use it for a period of time to fully obtain the user's personalized data.

[0092] To obtain the user's personalized data, it is necessary to first establish an environmental status-set temperature score table for the cooling condition, and to create tables for the heating condition and the cooling condition separately. In addition, the present invention does not limit the specific time for creating the table, and only needs to create the table before obtaining the user's personalized data.

[0093] The environmental state consists of the indoor ambient temperature interval and the outdoor ambient temperature interval. Here, the state discretizes the outdoor ambient temperature and the indoor ambient temperature and expresses them in the form of intervals. The interval length can be 1°C, 2°C, etc. For example, the environmental state of [outdoor temperature 32, indoor temperature 28] can be expressed as (27, 28], (31, 32], where the interval is left open and right closed, so the interval to which the outdoor temperature 32 belongs is (31, 32]. For example, when 2°C is taken as the interval length, the state of a certain link can be expressed as (26, 28],

[0094] (28,30]; (26,28] is the indoor ambient temperature interval, and (28,30] is the outdoor ambient temperature interval. Or it can be expressed as [27,28], [29,30]. Of course, the size of the interval interval in the state table can be adjusted as needed by those skilled in the art.

[0095] The first column header of the environmental state-set temperature score table is the environmental state, and the first row header is the set temperature. The set temperature can be 16°C to 30°C. The size of the table is n×16 (n is the number of environmental states). One row and one column are the corresponding headers. There are 15 columns of optional set temperatures in total. All values ​​in the table can be 0 initially.

[0096] In actual applications, the number of environmental states in the table is uncertain, that is, the number of rows is uncertain, but the number of columns is certain, that is, the number of selectable set temperatures. In actual applications, whenever the system detects a new environmental state, if there is no corresponding state row in the current table, the table is updated and the state row is added.

[0097] See also Figure 3 For example, the environmental state-set temperature score table can be initially Figure 3 The table initially established is a table with 15 columns, each column corresponds to a set temperature, and the number of rows is to be determined. Each time a new state is detected, it is first checked whether the current state exists in the table. If not, a new state row is added.

[0098] For example, at time t, the outdoor ambient temperature of the air conditioner is 32°C and the indoor ambient temperature is 28°C, then the corresponding environmental state is (27,28], (31,32]). At this time, the table checks whether the environmental state exists. If not, a new state row is added. The initial value in the table is 0. Figure 4 .

[0099] After a certain period of time (assuming that the user has not adjusted the set temperature during this period), the table is updated with multiple rows of environmental status, see Figure 5 .

[0100] Check whether the historical accumulated operation time of the air conditioner meets the entry condition of the control method, that is, whether it is greater than the target time, for example, one week or one month. This restriction can avoid the situation where insufficient previous data leads to the comfort control failing to meet user needs;

[0101] If not met, the set temperature is set by the user, and the current state and the corresponding set temperature are detected in real time. When the user changes the set temperature, a positive or negative value is accumulated to the element in the table corresponding to the environment state-set temperature according to whether the set temperature is increased or decreased, and the two values ​​are related according to the size of the set temperature change. For example, the current outdoor environment temperature is 32°C, the indoor environment temperature is 28°C, and the set temperature is 27°C. The behavior of the environment state in the environment state-set temperature scoring table is (27,28], (31,32], and the corresponding column is the set temperature 27. When the user sets the temperature from 27°C to 25°C, a -2 value correction is accumulated in the row and column elements corresponding to (27,28], (31,32] and 27. If the user sets the temperature from 27°C to 28°C, a +1 value correction is accumulated in the corresponding row and column elements.

[0102] For example, at a certain moment, when the user adjusts the set temperature from the original 25°C to the set temperature of 27°C in the state ((26,27],(32,33]), the corresponding value in the set temperature of 25°C column of the state row is corrected as follows: 27-25=+2, and the table is updated as follows Figure 6 shown.

[0103] After a long period of updating, the data in the environmental status-set temperature score table has been continuously updated, which may form the following Figure 7 The content shown.

[0104] When the historical operating time of the air conditioner meets the set temperature self-adjustment condition in the steady state, the air conditioner can select the set temperature with the value closest to 0 among all elements in the corresponding row of the table as the set temperature of the current state according to the current environmental state.

[0105] If the user manually adjusts the set temperature during the set temperature self-adjustment process, the environment state-set temperature scoring table is updated according to the updating method of the environment state-set temperature scoring table in the above steps.

[0106] For example, the current indoor ambient temperature of the air conditioner is 26°C and the outdoor ambient temperature is 33°C. In the state ((25,26],(32,33]) row in the table, the corresponding value of the set temperature 28°C is +5, and the corresponding value of the set temperature 24°C is +1. Then 24°C is selected as the set temperature. If there are multiple numbers with the same absolute value, for example, the set temperature of 25°C is -1 and the set temperature of 26°C is +1, one is randomly selected.

[0107] Through the above technical scheme, it is possible to avoid the situation in which most people do not have enough knowledge of the set temperature or do not clear their real heat demand in actual use of air conditioners, and the unreasonable self-set temperature causes the discomfort of alternating hot and cold. Taking cooling as an example, users will raise the set temperature when they feel cold, and lower the set temperature when they feel hot. Therefore, the present invention scores different set temperatures, and adds points for raising the temperature and deducts points for lowering the temperature. In this way, the higher the positive value of a set temperature score, the more likely the user will raise the temperature at this set temperature, that is, the room temperature is too low at the current set temperature, and the user feels too cold; if the negative value of the score is too high, it means that the user is likely to lower the set temperature, that is, the user currently feels too hot. Only when the score of a set temperature is close to the initial value of 0, it means that the user does not adjust the set temperature much at this set temperature, or the probability of raising or lowering the temperature is similar, so it can best meet the user's comfort needs.

[0108] Of course, the impact of the set temperature on user comfort is also related to the current room temperature and outdoor temperature. Therefore, each set temperature needs to be scored under different conditions. Ultimately, the user's most real comfort needs can be "learned" to achieve self-regulation of comfort in the steady state stage.

[0109] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A comfort control method for an air conditioner, characterized in that: include: When the indoor ambient temperature is in a steady state, each ambient state and all set temperature changes corresponding to the ambient state are recorded as an ambient state-set temperature score table, wherein the ambient state includes the indoor ambient temperature and the outdoor ambient temperature; When the set temperature self-regulation condition of the steady state is met, the set temperature with the best score is selected from the environmental state-set temperature scoring table as the set temperature of the air conditioner to control the air conditioner according to the current environmental state.

2. The air conditioning comfort control method according to claim 1, characterized in that: The environmental status-set temperature score sheet includes: When the environmental state-set temperature scoring table does not exist, create the environmental state-set temperature scoring table, set each set temperature as a column, each environmental state as a row, or set each set temperature as a row, each link state as a column; the initial values ​​of the elements corresponding to each row and column are the same; when the indoor environmental temperature just enters the steady state each time, record the environmental state and set temperature at that time; If the user adjusts the set temperature, the set temperature before adjustment is subtracted from the current set temperature to obtain a corresponding score, and the elements corresponding to the current environmental state and the set temperature before adjustment in the environmental state-set temperature score table are added to the score.

3. The air conditioning comfort control method according to claim 1, characterized in that: Selecting the best-rated set temperature involves the following steps: Find the scores of all set temperatures corresponding to the current environmental state in the environmental state-set temperature score table; The set temperature with the score closest to the initial value is selected as the set temperature with the best score.

4. The air conditioning comfort control method according to claim 3, characterized in that: When there are multiple set temperatures with scores closest to the initial value, one of the set temperatures is randomly selected as the set temperature with the best score.

5. The air conditioning comfort control method according to claim 3, characterized in that: When there are multiple set temperatures whose scores are closest to the initial value, the number of valid adjacent set temperatures for each set temperature is counted, and the set temperature with the most valid adjacent set temperatures is selected as the set temperature with the best score; the score of the valid adjacent set temperature is not the initial value, and there is no set temperature with the score of the initial value between the corresponding set temperature with the score closest to the initial value.

6. The air conditioning comfort control method according to claim 1, characterized in that: The environmental state is an indoor ambient temperature range and an outdoor ambient temperature range.

7. The air conditioning comfort control method according to claim 1, characterized in that: The set temperature self-regulation condition satisfying the steady state is specifically that the accumulated historical operation time of the air conditioner is greater than the target operation time.

8. The air conditioning comfort control method according to any one of claims 1 to 7, characterized in that: When the air conditioner is turned on, if the absolute value of the difference between the indoor ambient temperature at the time of turning on and the set temperature is less than or equal to the preset difference, it is judged that the indoor ambient temperature has entered a steady state; otherwise, it is judged that the indoor ambient temperature is in a non-steady state; When the indoor ambient temperature is in a non-steady state, the temperature difference between the current moment and the previous moment is calculated at a certain interval; Select a sliding window with a unit length of n, calculate the average value of n temperature differences in each sliding window, and draw a temperature difference sliding mean curve based on the average value of each sliding window. When the absolute value of a point on the temperature difference sliding mean curve is less than or equal to the preset threshold, the point is the judgment point from non-steady state to steady state, and the indoor ambient temperature enters a steady state.

9. The air conditioning comfort control method according to claim 8, characterized in that: When the indoor ambient temperature is in a non-steady state, the current indoor ambient temperature and compressor operating parameters are obtained in real time; Calculate the absolute value of the difference between the indoor ambient temperature and the set temperature at the time of startup, and use it as the denominator; Calculate the difference between the current indoor ambient temperature and the set temperature in real time and use it as the numerator; Divide the numerator by the denominator and multiply it by the compressor operating parameter correction value. Use the result to correct the compressor operating parameter. If the corrected compressor operating parameter is greater than the corresponding maximum allowable limit, the maximum allowable limit is taken.

10. The air conditioning comfort control method according to claim 9, characterized in that: The compressor operating parameter is the compressor operating frequency, or the target high pressure of the compressor, or the target low pressure of the compressor.

11. An air conditioner, comprising a controller, characterized in that: The controller controls the air conditioner using the air conditioner comfort control method according to any one of claims 1 to 10.

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