Water use control method and device for heat pump and heat pump all-in-one machine

Abstract

The invention relates to a water use control method and device for a heat pump and a heat pump all-in-one machine. The method comprises the steps that sensing temperatures, detected by a temperature sensing module, of different water tank liquid levels are obtained; the water inlet temperature is obtained according to the sensing temperatures; and on the basis of a preset available water amount model, the water inlet temperature and the sensing temperatures are processed, the target available water amount is obtained, and accurate calculation of the available water amount of the heat pump system is achieved. The sensing temperatures of different water tank liquid levels in the water tank are detected through the temperature sensing module, the water inlet temperature of the water tank is determined according to the sensing temperatures, then the water inlet temperature and the sensing temperatures are processed through the preset available water amount model, the accurate target available water amount is obtained, the accuracy of obtaining the available water amount is improved, and the user experience is improved. And the intelligent degree of the heat pump system is improved.

Description

Technical Field

[0001] This application relates to the technical field of heat pump control, and particularly to a method and device for controlling the water used by a heat pump and an integrated heat pump unit. Background Art

[0002] With the development of water use technology, the application of heat pump water heaters has become more and more widespread. Heat pump water heaters can provide hot water and cold water functions, meet the water use requirements of different people at different temperatures, and improve the portability of water use.

[0003] In the implementation process, the inventors found that there are at least the following problems in the traditional technology: the functions of existing heat pump water heaters are relatively single, the accuracy of obtaining the available water volume is low, and the degree of intelligence is low. Summary of the Invention

[0004] Based on this, in view of the problems of low accuracy of the available water volume and low degree of intelligence in the water use process of the existing heat pump water heaters, it is necessary to provide a heat pump water control method, device and integrated heat pump unit that can improve the accuracy of obtaining the available water volume and have a high degree of intelligence.

[0005] To achieve the above object, an embodiment of the present invention provides a heat pump water control method, including the following steps:

[0006] Obtain the sensing temperatures of different water tank levels detected by the temperature sensing module;

[0007] Obtain the inlet water temperature according to each sensing temperature;

[0008] Based on a preset available water volume model, process the inlet water temperature and each sensing temperature to obtain the target available water volume.

[0009] In one embodiment, the temperature sensing module includes a first temperature sensor, a second temperature sensor and a third temperature sensor; the first temperature sensor is used to detect the first sensing temperature corresponding to the first water tank level, the second temperature sensor is used to detect the second sensing temperature corresponding to the second water tank level, and the third temperature sensor is used to detect the third sensing temperature corresponding to the third water tank level; the third water tank level is greater than the second water tank level, and the second water tank level is greater than the first water tank level;

[0010] The step of obtaining the inlet water temperature according to each sensing temperature includes:

[0011] Obtain the inlet water temperature according to the first sensing temperature, the second sensing temperature and the third sensing temperature;

[0012] The step of processing the inlet water temperature and each sensing temperature based on a preset available water volume model to obtain the target available water volume includes:

[0013] Based on a preset available water volume model, the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature are processed to obtain the target available water volume.

[0014] In one embodiment, the steps of processing the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature based on a preset available water volume model to obtain the target available water volume include:

[0015] When the inlet water temperature is greater than or equal to the first temperature threshold, the first sensed temperature, the second sensed temperature, and the third sensed temperature are input into the first available water volume sub-model for processing to obtain the target available water volume;

[0016] When the inlet water temperature is less than the first temperature threshold and greater than or equal to the second temperature threshold, the first sensed temperature, the second sensed temperature, and the third sensed temperature are input into the second available water volume sub-model for processing to obtain the target available water volume;

[0017] When the inlet water temperature is less than the second temperature threshold, the first sensed temperature, the second sensed temperature, and the third sensed temperature are input into the third available water volume sub-model for processing to obtain the target available water volume.

[0018] In one embodiment, the first available water volume sub-model is:

[0019] V1 = A1 * X * X + B1 * X - C1

[0020] where V1 is the corresponding target available water volume, X = (T1 + T2 + T3) / 3, T1 is the first sensed temperature, T2 is the second sensed temperature, T3 is the third sensed temperature, and A1, B1, and C1 are constants;

[0021] The second available water volume sub-model is:

[0022] V2 = A2 * X * X + B2 * X - C2

[0023] where V2 is the corresponding target available water volume, and A2, B2, and C2 are constants;

[0024] The third available water volume sub-model is:

[0025] V3 = A3 * X * X + B3 * X + C3

[0026] where V3 is the corresponding target available water volume, and A3, B3, and C3 are constants.

[0027] In one embodiment, the steps of obtaining the inlet water temperature according to each sensed temperature include:

[0028] The inlet water temperature is determined according to the operating duration of the heat pump system and the minimum temperature value among each sensed temperature.

[0029] In one embodiment, the steps of processing the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature based on a preset available water volume model to obtain the target available water volume include:

[0030] When the temperature difference between any two of the first sensed temperature, the second sensed temperature, and the third sensed temperature is less than or equal to the third temperature threshold, determine the temperature value of the third sensed temperature;

[0031] If the third sensed temperature is greater than or equal to the fourth temperature threshold, process the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature based on the preset available water volume model to obtain the target available water volume.

[0032] In one embodiment, after the steps of processing the inlet water temperature and each sensed temperature based on the preset available water volume model to obtain the target available water volume, the following steps are included:

[0033] Obtain the target available water volume at different calculation time points;

[0034] According to each target available water volume, obtain the actual water consumption of the user in different time periods;

[0035] Input each target available water volume and each actual water consumption into a preset machine learning model for processing to obtain the heat pump start time of the heat pump system;

[0036] Control the start and stop of the heat pump of the heat pump system according to the heat pump start time.

[0037] In one embodiment, after the step of obtaining the actual water consumption of the user in different time periods according to each target available water volume, the following steps are further included:

[0038] Perform a difference process on the target available water volume in the current time period and the actual water consumption in the current time period to obtain a water volume difference;

[0039] When the water volume difference exceeds the water volume threshold, control the heat pump of the heat pump system to turn off.

[0040] On the other hand, an embodiment of the present invention further provides a heat pump water use control device, including:

[0041] A sensed temperature acquisition unit for acquiring the sensed temperatures of different water tank liquid levels detected by a temperature sensing module;

[0042] An inlet water temperature calculation unit for obtaining the inlet water temperature according to each sensed temperature;

[0043] An available water volume calculation unit for processing the inlet water temperature and each sensed temperature based on a preset available water volume model to obtain the target available water volume.

[0044] On the other hand, an embodiment of the present invention further provides an integrated heat pump, which includes a temperature sensing module, a water tank, and a controller; the temperature sensing module is arranged on the water tank, and the controller is connected to the temperature sensing module;

[0045] The controller is used to execute the steps of the heat pump water control method described in any one of the above.

[0046] One of the above technical solutions has the following advantages and beneficial effects:

[0047] In each of the above embodiments of the heat pump water control method, by obtaining the sensing temperatures of different water tank levels detected by the temperature sensing module; according to each sensing temperature, the inlet water temperature is obtained; based on a preset available water volume model, the inlet water temperature and each sensing temperature are processed to obtain the target available water volume, realizing accurate calculation of the available water volume of the heat pump system. In this application, the sensing temperatures of different water tank levels in the water tank are detected by the temperature sensing module, and according to each sensing temperature, the inlet water temperature of the water tank is determined. Then, through the preset available water volume model, the inlet water temperature and each sensing temperature are processed to obtain an accurate target available water volume, improving the accuracy of obtaining the available water volume and the intelligent level of the heat pump system. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the application environment of the heat pump water control method in an embodiment;

[0049] Figure 2 It is a first flow chart of the heat pump water control method in an embodiment;

[0050] Figure 3 It is a first flow chart of the target available water volume obtaining step in an embodiment;

[0051] Figure 4 It is a second flow chart of the target available water volume obtaining step in an embodiment;

[0052] Figure 5 It is a flow chart of the heat pump start-stop control step in an embodiment;

[0053] Figure 6 It is a schematic diagram of the structure of the heat pump water control device in an embodiment;

[0054] Figure 7 It is a schematic diagram of the structure of the integrated heat pump in an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0055] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0057] In addition, the meaning of the term "plurality" should be two or more.

[0058] The heat pump water control method provided by this application can be applied to, for example, Figure 1 the application environment shown. Among them, the heat pump system includes a controller 102, a water tank 104, and a temperature sensing module 106; the controller 102 is connected to the temperature sensing module 106. The water tank 104 is used to store water, and the water in the water tank 104 is used to provide for users. The temperature sensing module 106 can be used to detect the sensing temperature of different water tank levels in the water tank 104. The controller 102 can be used to obtain the sensing temperatures of different water tank levels detected by the temperature sensing module 106; according to each sensing temperature, obtain the inlet water temperature; based on a preset available water volume model, process the inlet water temperature and each sensing temperature to obtain the target available water volume. The heat pump system refers to an integrated heat pump, for example, the integrated heat pump can be a heat pump water heater with functions such as temperature adjustment or a water heater combining a heat pump and electric heating.

[0059] In one embodiment, as Figure 2 shown, a heat pump water control method is provided. Taking the controller 102 in Figure 1 as an example for illustration, it includes the following steps:

[0060] Step S210, obtain the sensing temperatures of different water tank levels detected by the temperature sensing module.

[0061] Among them, the temperature sensing module 106 can be arranged on the water tank 104, and the temperature sensing module 106 is used to detect the sensing temperatures at at least two different water levels in the water tank 104. For example, the temperature sensing module 106 can be used to detect the sensing temperatures at three different water levels in the water tank 104. The water tank 104 is provided with a water inlet end and a water outlet end. The water inlet end of the water tank 104 is used to input the water before temperature adjustment; the water outlet end of the water tank 104 is used to output the water after temperature adjustment. Exemplarily, the heat pump system may further include a temperature adjustment module. For example, the temperature adjustment module may include a heat pump or a combination of a heat pump and an electric heating module. The temperature adjustment module can be used to adjust the temperature of the water in the water tank 104.

[0062] The temperature sensing module 106 can detect the sensing temperatures at different water levels based on a preset period, and then the controller 102 can obtain the sensing temperatures at different water levels based on the preset period. For example, the temperature sensing module 106 can detect the sensing temperatures at different water levels every 5 seconds.

[0063] Step S220, obtain the inlet water temperature according to each sensing temperature.

[0064] By processing each sensing temperature obtained in the corresponding detection period, the inlet water temperature can be obtained. For example, the minimum value among the sensing temperatures in the corresponding detection period can be determined as the corresponding inlet water temperature.

[0065] Step S230, based on a preset available water volume model, process the inlet water temperature and each sensing temperature to obtain the target available water volume.

[0066] Among them, the preset available water volume model can be established through historical test data. By inputting the inlet water temperature and each sensing temperature into the preset available water volume model for processing, the target available water volume of the water tank 104 in the heat pump system can be accurately obtained.

[0067] Exemplarily, the calculated target available water volume can be displayed in real time. For example, for the convenience of display and for the user to view, the target available water volume can be rounded, and then the rounded target available water volume can be displayed in real time. In another example, the target available water volume can also be rounded to an integer multiple of 5. For example, the rounded target available water volume is 205, 165 or 230, etc.

[0068] Exemplarily, the target available water volume can also be graphically displayed. For example, taking the water tank 104 with a capacity of 200L as an example, when the reference value is 210, if the ratio of the target available water volume to the reference value is greater than or equal to 0.9, then 5 grids (i.e., full grids) are graphically displayed; if the ratio of the target available water volume to the reference value is between 0.7 and 0.9, then 4 grids are graphically displayed; if the ratio of the target available water volume to the reference value is between 0.5 and 0.6, then 3 grids are graphically displayed; if the ratio of the target available water volume to the reference value is between 0.3 and 0.5, then 2 grids are graphically displayed; if the ratio of the target available water volume to the reference value is between 0.1 and 0.3, then 1 grid is graphically displayed.

[0069] In the above embodiments, by obtaining the sensing temperatures of different water tank levels detected by the temperature sensing module 106; according to each sensing temperature, obtaining the inlet water temperature; based on a preset available water volume model, processing the inlet water temperature and each sensing temperature to obtain the target available water volume, the accurate calculation of the available water volume of the heat pump system is realized. In this application, the temperature sensing module 106 detects the sensing temperatures of different water tank levels in the water tank 104, and according to each sensing temperature, determines the inlet water temperature of the water tank 104. Then, through a preset available water volume model, the inlet water temperature and each sensing temperature are processed to obtain an accurate target available water volume, improving the accuracy of obtaining the available water volume and the intelligent level of the heat pump system.

[0070] In one embodiment, as Figure 7 shown, the temperature sensing module 106 includes a first temperature sensor 1062, a second temperature sensor 1064, and a third temperature sensor 1066; the first temperature sensor 1062 is used to detect the first sensing temperature corresponding to the first water tank level, the second temperature sensor 1064 is used to detect the second sensing temperature corresponding to the second water tank level, and the third temperature sensor 1066 is used to detect the third sensing temperature corresponding to the third water tank level; the third water tank level is greater than the second water tank level, and the second water tank level is greater than the first water tank level.

[0071] Among them, the first temperature sensor 1062 can be arranged on the water tank 104. For example, the first temperature sensor 1062 can be arranged at the 25% volume position corresponding to the water tank 104. Furthermore, the first temperature sensor 1602 can detect the first sensed temperature at the corresponding 25% volume position; the second temperature sensor 1064 can be arranged at the 50% volume position corresponding to the water tank 104. Furthermore, the second temperature sensor 1064 can detect the second sensed temperature at the corresponding 50% volume position; the third temperature sensor 1066 can be arranged at the 75% volume position corresponding to the water tank 104. Furthermore, the third temperature sensor 1066 can detect the third sensed temperature at the corresponding 75% volume position. The first water tank liquid level can be the liquid level height at the 25% volume position; the second water tank liquid level can be the liquid level height at the 50% volume position; the third water tank liquid level can be the liquid level height at the 75% volume position.

[0072] In one example, the steps of obtaining the inlet water temperature according to each sensed temperature include: obtaining the inlet water temperature according to the first sensed temperature, the second sensed temperature, and the third sensed temperature.

[0073] The first sensed temperature, the second sensed temperature, and the third sensed temperature obtained for the corresponding detection period can be processed, and then the inlet water temperature can be obtained. For example, the minimum value among the first sensed temperature, the second sensed temperature, and the third sensed temperature for the corresponding detection period can be selected, and then this minimum value can be determined as the corresponding inlet water temperature.

[0074] In one example, the steps of processing the inlet water temperature and each sensed temperature based on a preset available water volume model to obtain the target available water volume include: processing the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature based on the preset available water volume model to obtain the target available water volume.

[0075] By inputting the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature into the preset available water volume model for processing, the target available water volume of the water tank 104 in the heat pump system can be accurately obtained, improving the accuracy of obtaining the available water volume and the intelligent level of the heat pump system.

[0076] In one embodiment, as Figure 3 shown, the steps of processing the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature based on the preset available water volume model to obtain the target available water volume include:

[0077] Step S310, when the inlet water temperature is greater than or equal to the first temperature threshold, input the first sensed temperature, the second sensed temperature, and the third sensed temperature into the first available water volume sub-model for processing to obtain the target available water volume.

[0078] Among them, the first temperature threshold can be determined according to historical test data. For example, the first temperature threshold can be set to 25 °C. The first available water quantity model can be established based on historical test data. Exemplarily, the first available water quantity model is: V1 = A1 * X * X + B1 * X - C1. Wherein, V is the corresponding target available water quantity, X = (T1 + T2 + T3) / 3, T1 is the first sensed temperature, T2 is the second sensed temperature, T3 is the third sensed temperature, and A1, B1, and C1 are constants.

[0079] Perform threshold comparison processing on the obtained inlet water temperature. According to the comparison result, when the inlet water temperature is greater than or equal to the first temperature threshold, input the first sensed temperature, the second sensed temperature, and the third sensed temperature into the first available water quantity model for processing, and then output the target available water quantity. Exemplarily, A1 is 0.0485, B1 is 7.1449, and C1 is 210.26, that is, the first available water quantity model is V = 0.0485 * X * X + 7.1449 * X - 210.26. By averaging the first sensed temperature, the second sensed temperature, and the third sensed temperature, the average temperature corresponding to X is obtained, and by inputting the average temperature corresponding to X into the first available water quantity model for processing, the target available water quantity is obtained.

[0080] Step S320, when the inlet water temperature is less than the first temperature threshold and greater than or equal to the second temperature threshold, input the first sensed temperature, the second sensed temperature, and the third sensed temperature into the second available water quantity model for processing to obtain the target available water quantity.

[0081] Among them, the second temperature threshold can be determined according to historical test data. For example, the second temperature threshold can be set to 17 °C. The second available water quantity model can be established based on historical test data. Exemplarily, the second available water quantity model is: V2 = A2 * X * X + B2 * X - C2. Wherein, V2 is the corresponding target available water quantity, X = (T1 + T2 + T3) / 3, T1 is the first sensed temperature, T2 is the second sensed temperature, T3 is the third sensed temperature, and A2, B2, and C2 are constants.

[0082] Perform threshold comparison processing on the obtained inlet water temperature. According to the comparison result, when the inlet water temperature is less than the first temperature threshold and greater than or equal to the second temperature threshold, input the first sensing temperature, the second sensing temperature, and the third sensing temperature into the second available water volume sub-model for processing, and then output the target available water volume. Exemplarily, A2 is 0.0814, B2 is 0.4556, and C2 is 1.8453, that is, the second available water volume sub-model is V2 = 0.0814*X*X + 0.4556*X - 1.8453. By averaging the first sensing temperature, the second sensing temperature, and the third sensing temperature, the temperature average value corresponding to X is obtained. By inputting the temperature average value corresponding to X into the second available water volume sub-model for processing, the target available water volume corresponding to the inlet water temperature is obtained.

[0083] Step S330, when the inlet water temperature is less than the second temperature threshold, input the first sensing temperature, the second sensing temperature, and the third sensing temperature into the third available water volume sub-model for processing to obtain the target available water volume.

[0084] Among them, the third available water volume sub-model can be established through historical test data. Exemplarily, the third available water volume sub-model is: V3 = A3*X*X + B3*X + C3. Among them, V3 is the corresponding target available water volume, X = (T1 + T2 + T3) / 3, T1 is the first sensing temperature, T2 is the second sensing temperature, T3 is the third sensing temperature, and A3, B3, and C3 are constants.

[0085] Perform threshold comparison processing on the obtained inlet water temperature. According to the comparison result, when the inlet water temperature is less than the second temperature threshold, input the first sensing temperature, the second sensing temperature, and the third sensing temperature into the third available water volume sub-model for processing, and then output the target available water volume. Exemplarily, A3 is 0.0501, B3 is 1.484, and C3 is 4.1186, that is, the third available water volume sub-model is V3 = 0.0501*X*X + 1.484*X + 4.1186. By averaging the first sensing temperature, the second sensing temperature, and the third sensing temperature, the temperature average value corresponding to X is obtained. By inputting the temperature average value corresponding to X into the third available water volume sub-model for processing, the target available water volume corresponding to the inlet water temperature is obtained.

[0086] In the above embodiments, according to the inlet water temperature, the corresponding available water volume sub-model is selected. Then, based on the selected corresponding available water volume sub-model, the first sensing temperature, the second sensing temperature, and the third sensing temperature at different water tank levels are processed, and then the accurate available water volume is obtained, thereby improving the accuracy of obtaining the available water volume and the intelligent level of the heat pump system.

[0087] In one embodiment, the step of obtaining the inlet water temperature according to each sensed temperature includes:

[0088] Determine the inlet water temperature according to the operating duration of the heat pump system and the minimum temperature value among each sensed temperature.

[0089] Among them, the operating duration of the heat pump system can be the power-on duration of the heat pump system. For example, the operating duration of the heat pump system can be calculated in days.

[0090] For example, when the heat pump system is powered on for the first day, the minimum temperature value among the sensed temperatures of that day is used as the benchmark; if the operating duration of the heat pump system is greater than 1 day and less than 7 days, the inlet water temperature is based on the minimum temperature value of the previous day; if the operating duration of the heat pump system is greater than 7 days, the inlet water temperature is based on the minimum temperature value of the previous 7 days. 7 days is a cycle, and the minimum value of the inlet water temperature in the previous 7 days is covered by the next 7 days. It should be noted that if the heat pump system fails, the inlet water temperature is 15°C.

[0091] In one embodiment, as Figure 4 shown, the steps of processing the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature based on a preset available water volume model to obtain the target available water volume include:

[0092] Step S410, when the temperature difference between any two of the first sensed temperature, the second sensed temperature, and the third sensed temperature is less than or equal to the third temperature threshold, determine the temperature value of the third sensed temperature.

[0093] For example, the third temperature threshold can be 3°C. By performing a difference process on any two of the first sensed temperature, the second sensed temperature, and the third sensed temperature to obtain the corresponding temperature difference, if any temperature difference is less than or equal to 3°C, it is determined that the heat pump system is in the state of initially adding cold water or having a long-term power outage, and then the magnitude of the temperature value of the third sensed temperature is judged.

[0094] Step S420, if the third sensed temperature is greater than or equal to the fourth temperature threshold, process the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature based on the preset available water volume model to obtain the target available water volume.

[0095] Among them, the fourth temperature threshold can be but is not limited to 40°C. The third sensed temperature is compared with the fourth temperature threshold. If the third sensed temperature is greater than or equal to the fourth temperature threshold, based on the preset available water volume model, the inlet water temperature, the first sensed temperature, the second sensed temperature, and the third sensed temperature are processed, so as to obtain an accurate target available water volume, improving the accuracy of obtaining the available water volume and the intelligent level of the heat pump system. If the third sensed temperature is less than the fourth temperature threshold, the calculation process of the target available water volume is stopped, thereby simplifying the calculation amount of the target available water volume.

[0096] It should be noted that when the heat pump system is in the non-heating stage (such as the non-electric heating and compressor startup time period), there is no need to calculate and process the target available water volume, thereby further simplifying the calculation amount of the target available water volume.

[0097] In one embodiment, as Figure 5 shown, after the step of processing the inlet water temperature and each sensed temperature based on the preset available water volume model to obtain the target available water volume, it includes:

[0098] Step S510, obtaining the target available water volume at different calculation time points.

[0099] For example, the reference time of the calculation time period can be set to 3 o'clock, 8 o'clock, 13 o'clock or 19 o'clock. By obtaining the sensed temperature of the temperature sensing module 106 in different calculation time periods; according to the sensed temperature in each different calculation time period, obtaining the corresponding inlet water temperature; based on the preset available water volume model, processing the corresponding inlet water temperature and each sensed temperature to obtain the target available water volume in the corresponding calculation time period.

[0100] Step S520, obtaining the actual water consumption of the user in different time periods according to each target available water volume.

[0101] For example, the water consumption in the time period from 3 o'clock to 8 o'clock is obtained by taking the difference between the target available water volume corresponding to 3 o'clock and the target available water volume corresponding to 8 o'clock. The water consumption in the time period from 8 o'clock to 13 o'clock is obtained by taking the difference between the target available water volume corresponding to 8 o'clock and the target available water volume corresponding to 13 o'clock, and so on.

[0102] Step S530, inputting each target available water volume and each actual water consumption into a preset machine learning model for processing to obtain the heat pump startup time of the heat pump system.

[0103] Among them, the preset machine learning model can be obtained through system preset. For example, based on the preset machine learning model, the machine learning process is started, the set temperature of the heat pump is set to 52°C, and the first week is the self-learning process; the second week and later are the self-adjustment processes, and the data of the latter week covers the data of the previous week. The water consumption per hour per day is statistically calculated, and the water consumption in the summary stage / the daily water consumption is summarized. Starting from the second week, the self-adjustment week, according to the water usage habits in each previous stage, the start time of the heat pump in the heat pump system is calculated, and then the accurate start-up time of the heat pump in advance is realized.

[0104] Exemplarily, the implementation process of step S530 is as follows: After one week of learning, the target available water volume at 8 o'clock and the target available water volume at 13 o'clock on a certain day are obtained as 120L, while the current available water volume is 80L. Assuming the heating rate is 25L / h, the advance start-up time = 40 / 25 = 1.6h. Taking 8 o'clock as the reference time, then push forward 1.6h to start the machine in advance.

[0105] Step S540, control the start and stop of the heat pump in the heat pump system according to the heat pump start-up time.

[0106] For example, according to the heat pump start-up time, control the start and stop of the heat pump in the heat pump system to achieve accurate control of the heat pump to start in advance, so that users can obtain water in time, thereby improving the intelligence level of the heat pump system and at the same time improving the energy-saving efficiency of the heat pump system.

[0107] Exemplarily, when the third sensed temperature is less than or equal to the fifth temperature threshold (such as 35°C), the heat pump is forcibly started.

[0108] In one example, the temperature change rate corresponding to the first sensed temperature, the second sensed temperature, or the third sensed temperature can be obtained, and then it can be determined whether the water tank 104 discharges water according to the temperature change rate. For example, when the temperature change rate corresponding to the first sensed temperature, the second sensed temperature, or the third sensed temperature is less than 2°C / 10min, it is determined that the water tank 104 discharges water.

[0109] In one embodiment, after the step of obtaining the actual water consumption of the user in different time periods according to each target available water volume, it further includes:

[0110] Perform a difference process on the target available water volume in the current time period and the actual water consumption in the current time period to obtain a water volume difference; when the water volume difference exceeds the water volume threshold, control the heat pump in the heat pump system to turn off.

[0111] Among them, the water volume threshold can be, but is not limited to, 20. For example, if the difference between the target available water volume in the current time period and the actual water consumption in the current time period is greater than or equal to 20, the heat pump of the heat pump system is controlled to turn off; otherwise, according to the difference between the target available water volume in the current time period and the actual water consumption in the current time period divided by a preset value (such as 30), the early start time (accurate to 0.1 hour) is obtained, so as to control the start and stop of the heat pump of the heat pump system according to the early start time, realize precise control of the heat pump to start in advance, so that users can obtain water in time, thereby improving the intelligence level of the heat pump system and at the same time improving the energy-saving efficiency of the heat pump system.

[0112] In one example, the fourth temperature threshold corresponding to the third sensing temperature can also be adjusted according to the daily water consumption of different volumes. For example, for the water tank 104 with a volume of 200L, if the water consumption reference value is set to 160L, then when the water consumption is 160 to 220L, the fourth temperature threshold is set to 52°C; when the water consumption is 100 to 160L, the fourth temperature threshold is set to 47°C; when the water consumption is less than 100L, the fourth temperature threshold is set to 45°C; when the water consumption is greater than 220L, the fourth temperature threshold is set to 54°C.

[0113] In one example, the minimum emergency water volume can be set. For example, the minimum emergency water volume is 50L. When it is detected that the target available water volume reaches the minimum emergency water volume, the water inlet can be forcibly opened to realize timely replenishment of the drinking water in the water tank 104.

[0114] It should be understood that although Figures 2 to 5 the steps in the flowchart of Figures 2 to 5 are shown in sequence according to the indication of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover,

[0115] In one embodiment, as Figure 6 shown, the embodiment of the present invention also provides a heat pump water use control device, including:

[0116] A sensing temperature acquisition unit 610, configured to acquire the sensing temperatures of different water tank liquid levels detected by the temperature sensing module.

[0117] An inlet water temperature calculation unit 620, configured to obtain the inlet water temperature according to each sensing temperature.

[0118] An available water volume calculation unit 630 is configured to process the inlet water temperature and each sensing temperature based on a preset available water volume model to obtain a target available water volume.

[0119] For the specific limitations of the heat pump water use control device, reference can be made to the limitations of the heat pump water use control method in the above text, which will not be elaborated here. Each module in the above heat pump water use control device can be implemented in whole or in part by software, hardware, and their combination. The above-mentioned modules can be embedded in the controller 102 in the heat pump integrated machine in the form of hardware or independent of it, or stored in the memory of the heat pump integrated machine in the form of software, so that the controller 102 can call and execute the operations corresponding to each of the above modules.

[0120] In one embodiment, as Figure 7 shown, the embodiment of the present invention further provides a heat pump integrated machine, including a temperature sensing module 106, a water tank 104, and a controller 102; the temperature sensing module 106 is arranged on the water tank 104, and the controller 102 is connected to the temperature sensing module 106; the controller 102 is configured to execute the steps of the heat pump water use control method described in any one of the above.

[0121] Among them, the temperature sensing module 106 may include a first temperature sensor 1062, a second temperature sensor 1064, and a third temperature sensor 1066; the first temperature sensor 1062 may be arranged on the water tank 104, and then the first temperature sensor 1062 can detect a first sensing temperature corresponding to the first water tank level and transmit the first sensing temperature to the controller 102; the second temperature sensor 1064 may be arranged on the water tank 104, and then the second temperature sensor 1064 can detect a second sensing temperature corresponding to the second water tank level and transmit the second sensing temperature to the controller 102; the third temperature sensor 1066 may be arranged on the water tank 104, and then the third temperature sensor 1066 can detect a third sensing temperature corresponding to the third water tank level and transmit the third sensing temperature to the controller 102.

[0122] Among them, the controller 102 can be configured to execute the following steps of the heat pump water use control method:

[0123] Obtain the sensing temperatures of different water tank levels detected by the temperature sensing module 106; obtain the inlet water temperature according to each sensing temperature; process the inlet water temperature and each sensing temperature based on a preset available water volume model to obtain a target available water volume, so as to accurately calculate the available water volume of the heat pump system.

[0124] In the above embodiments, the sensing temperature of different water tank levels in the water tank 104 is detected by the temperature sensing module 106, and the inlet water temperature of the water tank is determined according to each sensing temperature. Then, through the preset available water volume model, the inlet water temperature and each sensing temperature are processed to obtain the accurate target available water volume, improving the accuracy of obtaining the available water volume and the intelligent level of the heat pump system.

[0125] In one embodiment, a computer-readable storage medium is further provided, on which a computer program is stored. When the computer program is executed by a controller, the steps of the heat pump water control method in any one of the above are implemented.

[0126] In one example, when the computer program is executed by a controller, the following steps are implemented:

[0127] Obtain the sensing temperature of different water tank levels detected by the temperature sensing module; obtain the inlet water temperature according to each sensing temperature; based on the preset available water volume model, process the inlet water temperature and each sensing temperature to obtain the target available water volume.

[0128] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the various embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), direct memory bus DRAM (DRDRAM), and memory bus DRAM (RDRAM), etc.

[0129] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0130] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A heat pump water control method, characterized in that: The following steps are involved: Obtain the sensing temperature of different water tank liquid levels detected by the temperature sensing module; According to each of the sensed temperatures, the water inlet temperature is obtained; Based on a preset available water volume model, the inlet water temperature and each of the sensor temperatures are processed to obtain a target available water volume.

2. The heat pump water control method according to claim 1, characterized in that: The temperature sensing module includes a first temperature sensor, a second temperature sensor and a third temperature sensor; the first temperature sensor is used to detect a first sensing temperature corresponding to a first water tank liquid level, the second temperature sensor is used to detect a second sensing temperature corresponding to a second water tank liquid level, and the third temperature sensor is used to detect a third sensing temperature corresponding to a third water tank liquid level; the third water tank liquid level is greater than the second water tank liquid level, and the second water tank liquid level is greater than the first water tank liquid level; The step of obtaining the water inlet temperature according to each of the sensed temperatures comprises: Obtaining the water inlet temperature according to the first sensing temperature, the second sensing temperature and the third sensing temperature; Based on a preset available water volume model, the step of processing the inlet water temperature and each of the sensor temperatures to obtain a target available water volume includes: Based on a preset available water volume model, the water inlet temperature, the first sensing temperature, the second sensing temperature and the third sensing temperature are processed to obtain the target available water volume.

3. The heat pump water control method according to claim 2, characterized in that: The step of processing the water inlet temperature, the first sensor temperature, the second sensor temperature and the third sensor temperature based on the preset available water model to obtain the target available water volume comprises: When the inlet water temperature is greater than or equal to a first temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into a first available water quantity model for processing to obtain the target available water quantity; When the inlet water temperature is less than a first temperature threshold and greater than or equal to a second temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into a second available water quantity model for processing to obtain the target available water quantity; When the inlet water temperature is less than a second temperature threshold, the first sensed temperature, the second sensed temperature and the third sensed temperature are input into a third available water quantity model for processing to obtain the target available water quantity.

4. The heat pump water control method according to claim 3, characterized in that: The first available water quantum model is: V1=A1*X*X+B1*X-C1 Wherein, V1 is the corresponding target available water volume, X=(T1+T2+T3) / 3, T1 is the first sensing temperature, T2 is the second sensing temperature, T3 is the third sensing temperature, A1, B1 and C1 are constants; The second available water quantum model is: V2=A2*X*X+B2*X-C2 Among them, V2 is the corresponding target available water volume, A2, B2 and C2 are constants; The third available water quantum model is: V3=A3*X*X+B3*X+C3 Among them, V3 is the corresponding target available water volume, and A3, B3 and C3 are constants.

5. The heat pump water control method according to claim 1, characterized in that: The step of obtaining the water inlet temperature according to each of the sensed temperatures comprises: The water inlet temperature is determined according to the working time of the heat pump system and the minimum temperature value of each of the sensed temperatures.

6. The heat pump water control method according to claim 2, characterized in that: The step of processing the water inlet temperature, the first sensor temperature, the second sensor temperature and the third sensor temperature based on the preset available water model to obtain the target available water volume comprises: When the temperature difference between any two temperature values ​​of the first sensed temperature, the second sensed temperature and the third sensed temperature is less than or equal to a third temperature threshold, determining the temperature value of the third sensed temperature; If the third sensing temperature is greater than or equal to a fourth temperature threshold, the inlet water temperature, the first sensing temperature, the second sensing temperature and the third sensing temperature are processed based on a preset available water model to obtain the target available water volume.

7. The heat pump water control method according to any one of claims 1 to 6, characterized in that: The step of processing the inlet water temperature and each of the sensor temperatures based on the preset available water model to obtain the target available water volume comprises: Obtain the target available water volume at different calculation time points; According to each of the target available water quantities, the actual water consumption of the user in different time periods is obtained; Inputting each of the target available water volumes and each of the actual water volumes into a preset machine learning model for processing to obtain a heat pump start time of the heat pump system; According to the heat pump start time, the heat pump of the heat pump system is controlled to start and stop.

8. The heat pump water control method according to claim 7, characterized in that: After the step of obtaining the actual water consumption of the user in different time periods according to each target available water consumption, the step further includes: Performing difference processing on the target available water volume in the current time period and the actual water consumption in the current time period to obtain the water volume difference; When the water volume difference exceeds a water volume threshold, the heat pump of the heat pump system is controlled to be turned off.

9. A heat pump water control device, characterized in that: include: A sensing temperature acquisition unit, used to acquire the sensing temperatures of different water tank liquid levels detected by the temperature sensing module; An inlet water temperature calculation unit, used to obtain the inlet water temperature according to each of the sensor temperatures; The available water volume calculation unit is used to process the water inlet temperature and each of the sensor temperatures based on a preset available water volume model to obtain a target available water volume.

10. A heat pump integrated machine, characterized in that: It includes a temperature sensing module, a water tank and a controller; the temperature sensing module is arranged on the water tank, and the controller is connected to the temperature sensing module; The controller is used to execute the steps of the heat pump water use control method according to any one of claims 1 to 8.

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