Water taking temperature control method and device, water taking system and storage medium

Abstract

The embodiment of the invention provides a water taking temperature control method and device, a water taking system and a storage medium. The method comprises the following steps: during water taking, executing the following control operations: acquiring a first target water temperature; obtaining a first actual water temperature and a second actual water temperature; based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow, the first target water outlet flow and the second target water outlet flow are determined; the preset flow is the sum of the first target water outlet flow and the second target water outlet flow; controlling the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow and the second target water outlet flow respectively; acquiring a third actual water temperature of the water outlet pipeline; and based on the third actual water temperature and the first target water temperature, the first target water outlet flow and / or the second target water outlet flow are / is controlled, so that the difference value between the third actual water temperature and the first target water temperature is smaller than or equal to a first preset threshold value. According to the scheme, the outlet water temperature can be accurately adjusted.

Description

Technical Field

[0001] The present application relates to the field of water intake technology, and more specifically to a method for controlling water intake temperature, a device for controlling water intake temperature, a water intake system and a computer-readable storage medium. Background Art

[0002] With the continuous improvement of living standards, water-taking systems such as tea bar machines and water dispensers are widely used in people's daily lives. Taking a tea bar machine with a heating function as an example, a tea bar machine generally has a hot water pipe for discharging hot water and a normal temperature water pipe for discharging normal temperature water. Users can control the tea bar machine to discharge hot water and normal temperature water as needed.

[0003] In the related art, when a user needs water, he can control the tea bar machine to produce hot water, and then wait for a period of time for the temperature to drop to a suitable temperature before drinking. However, this method takes a long time, resulting in the inability to provide the user with the required water in time, affecting the user's experience. Summary of the invention

[0004] The present application is proposed in view of the above problems. The present application provides a method for controlling water intake temperature, a device for controlling water intake temperature, a water intake system and a computer readable storage medium.

[0005] According to one aspect of the present application, a method for controlling water intake temperature is provided for a water intake system; the water intake system comprises a first water storage device for providing hot water, a second water storage device for providing normal temperature water, and a water outlet pipeline; the first water storage device and the second water storage device are both connected to the water outlet pipeline, and the hot water provided by the first water storage device and the normal temperature water provided by the second water storage device are mixed in the water outlet pipeline and discharged through the water outlet pipeline; the method comprises: when taking water, performing the following control operations: obtaining a first target water temperature; obtaining a first actual water temperature in the first water storage device and a second actual water temperature in the second water storage device; based on the first target water temperature, The first actual water temperature, the second actual water temperature and the preset flow rate are used to determine the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device; the preset flow rate is the sum of the first target water outlet flow rate and the second target water outlet flow rate; the first water storage device and the second water storage device are controlled to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate, respectively; the third actual water temperature of the water outlet pipeline is obtained; based on the third actual water temperature and the first target water temperature, the first target water outlet flow rate and / or the second target water outlet flow rate is controlled so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold value.

[0006] The above technical solution can use the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate to determine the corresponding water flow rates of the first water storage device and the second water storage device (i.e., the first target water flow rate and the second target water flow rate), and can control the first target water flow rate and the second target water flow rate in real time according to the first target water temperature and the third actual water temperature, so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold. This solution can adjust the outlet water temperature more accurately by calculating and controlling the first target water flow rate and the second target water flow rate, which is conducive to enabling users to obtain a water intake temperature as close to their expected temperature as possible when taking water. This precise temperature control solution can greatly improve the user experience of the water intake system.

[0007] Exemplarily, based on the third actual water temperature and the first target water temperature, controlling the first target water outlet flow rate and / or the second target water outlet flow rate includes: determining whether the difference between the third actual water temperature and the first target water temperature is less than or equal to a first preset threshold value; when the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold value, repeating the following steps until the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold value: when the third actual water temperature is greater than the first target water temperature, reducing the first target water outlet flow rate and / or increasing the second target water outlet flow rate; when the third actual water temperature is less than the first target water temperature, increasing the first target water outlet flow rate and / or reducing the second target water outlet flow rate.

[0008] In the above technical solution, when the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold, the first target water flow rate and / or the second target water flow rate are continuously increased or decreased so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold. The flow rate adjustment method of this solution is simple, which helps to achieve rapid adjustment of the third actual water temperature, thereby helping to better meet the user's usage needs.

[0009] Exemplarily, the control operation also includes: determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to the second preset threshold value, the fourth actual water temperature is the third actual water temperature or is determined based on the third actual water temperature within a preset time period; when the difference between the fourth actual water temperature and the first target water temperature is greater than the second preset threshold value, determining the third target water temperature based on the fourth actual water temperature and the first target water temperature; wherein, for this water extraction, the control operation also includes: taking the third target water temperature as the new first target water temperature, returning to execute the step of determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate; and / or, for any subsequent water extraction, taking the third target water temperature as the new first target water temperature, executing the step of determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate.

[0010] The above technical solution uses the fourth actual water temperature and the first target water temperature to determine a new first target water temperature, and based on the new first target water temperature, re-determines the target water flow rate corresponding to the first water storage device and the second water storage device in this water intake and / or subsequent water intake, thereby helping to ensure that the outlet water temperature meets the user's usage requirements. The new first target water temperature determined by the solution helps to improve the control accuracy of the outlet water temperature of this water intake when applied to the current water intake process, and helps to reduce the water temperature adjustment time in the subsequent water intake process when applied to the subsequent water intake process, which is conducive to further improving the user's usage experience.

[0011] Exemplarily, the control operation also includes: obtaining the interval between the last water extraction and the current water extraction; determining whether the interval is greater than or equal to a duration threshold; and determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to a second preset threshold. The step is performed when the interval is greater than or equal to the duration threshold.

[0012] The above-mentioned technical scheme executes the step of determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to the second preset threshold value when the interval duration is greater than or equal to the duration threshold. This can avoid the influence of the first target water temperature of the last water extraction on the fourth actual water temperature measured during the current water extraction process, thereby helping to improve the accuracy of the fourth actual water temperature, and further provide a more accurate basis for determining the subsequent first target water outlet flow rate and the second target water outlet flow rate, which is beneficial to improving the user experience.

[0013] Exemplarily, based on the fourth actual water temperature and the first target water temperature, determining the third target water temperature includes: calculating the temperature difference between the fourth actual water temperature and the first target water temperature; when the fourth actual water temperature is greater than the first target water temperature, determining the difference between the first target water temperature and the temperature difference as the third target water temperature; when the fourth actual water temperature is less than the first target water temperature, determining the sum of the first target water temperature and the temperature difference as the third target water temperature.

[0014] In the above technical solution, by using the difference between the fourth actual water temperature and the first target water temperature to determine the third target water temperature, the actual outlet water temperature of the water outlet pipeline can be ensured to meet user needs as much as possible, thereby helping to improve user experience.

[0015] Exemplarily, before determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate, the control operation also includes: judging whether the first actual water temperature is greater than the second target water temperature, wherein the second target water temperature is greater than or equal to the first target water temperature, or the second target water temperature is less than the first target water temperature and the difference between the first target water temperature and the second target water temperature is less than or equal to the first preset threshold value; when the first actual water temperature is less than or equal to the second target water temperature, performing one or more of the following operations: outputting a first prompt message; controlling the first water storage device and the second water storage device to stop supplying water; controlling the first water storage device to heat; wherein the first prompt message is used to prompt the user that the hot water in the first water storage device needs to be heated; the step of determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate is performed when the first actual water temperature is greater than the second target water temperature.

[0016] In the above solution, the step of determining the first target water flow rate of the first water storage device and the second target water flow rate of the second water storage device is performed only when the first actual water temperature is greater than the second target water temperature. This helps to improve the user experience.

[0017] Exemplarily, when the first actual water temperature is less than or equal to the second target water temperature, after controlling the first water storage device to heat up, the control operation also includes: after the heating of the first water storage device is completed, performing one or more of the following operations: outputting a second prompt message; controlling the first water storage device and the second water storage device to continue supplying water; wherein the second prompt message is used to prompt the user that the heating of the first water storage device is completed.

[0018] The above technical solution outputs a first prompt message when the first actual water temperature is less than or equal to the second target water temperature to prompt the user that the hot water in the first water storage device needs to be heated. This can avoid providing water that does not meet the user's needs, and can facilitate the user to understand the working status of the water intake system, which helps to further improve the user's experience.

[0019] Exemplarily, the control operation also includes: obtaining a target water output; accumulating the total water output of the water outlet pipeline during this water intake process; when the total water output reaches the target water output, controlling the first water storage device and the second water storage device to stop supplying water.

[0020] According to the above technical solution, when the total water output reaches the target water output, the first water storage device and the second water storage device are controlled to stop supplying water, thereby preventing water from overflowing the user's water collection container. This solution can automatically stop supplying water according to the target water output, which is conducive to further improving the user's experience.

[0021] Exemplarily, the water outlet system also includes a first water pump and a second water pump; the first water pump is used to pump water in the first water storage device to the water outlet pipeline; the second water pump is used to pump water in the second water storage device to the water outlet pipeline; the first water storage device and the second water storage device are controlled to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate, respectively, including: obtaining a first characteristic curve and a second characteristic curve; the first characteristic curve is used to represent the relationship between the driving voltage of the first water pump and the water outlet flow rate of the first water storage device; the second characteristic curve is used to represent the relationship between the driving voltage of the second water pump and the water outlet flow rate of the second water storage device; based on the first characteristic curve and the first target water outlet flow rate, determine the driving voltage of the first water pump; based on the second characteristic curve and the second target water outlet flow rate, determine the driving voltage of the second water pump; based on the driving voltages corresponding to the first water pump and the second water pump, control the first water pump and the second water pump to work, so as to control the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate, respectively.

[0022] In the above technical solution, the driving voltages corresponding to the first water pump and the second water pump are respectively determined on the first characteristic curve and the second characteristic curve according to the first target water flow rate and the second target water flow rate. The calculation process of this solution is simple, and the driving voltages corresponding to the first water pump and the second water pump can be determined more reliably.

[0023] Exemplarily, controlling the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively includes: taking either or both of the first water storage device and the second water storage device as the target water storage device, obtaining the actual water outlet flow rate of the target water storage device; judging whether the difference between the actual water outlet flow rate and the target water outlet flow rate is less than or equal to a third preset threshold value; and when the difference between the actual water outlet flow rate and the target water outlet flow rate is greater than the third preset threshold value, repeatedly performing the following steps until the difference between the actual water outlet flow rate and the target water outlet flow rate is less than or equal to the third preset threshold value. is greater than or equal to a third preset threshold: if the actual water outlet flow rate is less than the target water outlet flow rate, the driving voltage of the target water pump is increased; the target water pump is a water pump corresponding to the target water storage device; if the actual water outlet flow rate is greater than the target water outlet flow rate, the driving voltage of the target water pump is reduced; when the difference between the actual water outlet flow rate and the target water outlet flow rate is less than or equal to the third preset threshold, the driving voltage of the target water pump is recorded; at least based on the recorded driving voltage and the target water outlet flow rate, the target characteristic curve is adjusted; the target characteristic curve is used to represent the relationship between the driving voltage of the target water pump and the water outlet flow rate of the target water storage device.

[0024] The above technical solution adjusts the driving voltage of the target water pump based on the difference between the actual water flow rate and the target water flow rate, which can make the actual water flow rate more accurate, thereby helping to improve the temperature control accuracy of this water intake. And the solution readjusts the characteristic curve based on the adjusted driving voltage, which helps to obtain a more reliable characteristic curve, which helps to further improve the temperature control accuracy of subsequent water intake.

[0025] According to another aspect of the present application, a water intake temperature control device is provided, comprising: a processor and a memory, wherein the memory stores computer program instructions, and the computer program instructions are used to execute the water intake temperature control method as described above when the processor is running.

[0026] The control device of the above technical solution can use the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate to determine the corresponding water flow rates of the first water storage device and the second water storage device (i.e., the first target water flow rate and the second target water flow rate), and can control the first target water flow rate and the second target water flow rate in real time according to the first target water temperature and the third actual water temperature, so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold. This solution can adjust the outlet water temperature more accurately by calculating and controlling the first target water flow rate and the second target water flow rate, which is conducive to enabling users to obtain a water intake temperature as close to their desired temperature as possible when taking water. This precise temperature control solution can greatly improve the user experience of the water intake system.

[0027] According to another aspect of the present application, a water intake system is provided, comprising: a first water storage device for providing hot water, a second water storage device for providing water at room temperature, a water outlet pipeline and a water intake temperature control device as described above; the first water storage device and the second water storage device are both connected to the water outlet pipeline, and the hot water provided by the first water storage device and the room temperature water provided by the second water storage device are mixed in the water outlet pipeline and then discharged through the water outlet pipeline.

[0028] The above technical solution can adjust the outlet water temperature more accurately by utilizing the control device, which is helpful to meet the user's usage needs.

[0029] Exemplarily, a mixing chamber is provided on the water outlet pipe; the hot water provided by the first water storage device and the normal temperature water provided by the second water storage device are mixed in the mixing chamber and then discharged through the water outlet of the water outlet pipe; and / or, the water intake system also includes a first water pump; the first water storage device is a closed water storage device; the water inlet of the first water storage device is arranged at the lower part of the side wall or the bottom of the first water storage device; the water outlet of the first water storage device is arranged at the top of the first water storage device; the water inlet is connected to the water inlet pipe; the first water pump is arranged in the water inlet pipe; the first water pump is used to pump water into the first water storage device, so that the hot water in the first water storage device is transported to the water outlet pipe via the water outlet.

[0030] The above technical solution helps to ensure that hot water and normal temperature water are fully mixed by providing a water mixing chamber, thereby helping to make the temperature of the water flowing out of the water outlet pipe uniform, and further helping to improve the user experience. The first water storage device adopts a closed water storage device, and the hot water in the first water storage device is pushed out into the water outlet pipe by the normal temperature water pumped into the first water storage device by the first water pump. In this way, it can be ensured that the first water storage device is always full of water, so there is no need to provide a water level sensing device in the first water storage device. This solution helps to reduce the production cost of the water intake system. In addition, the water inlet of the first water storage device in this solution is provided at the lower part or bottom of the side wall of the first water storage device, which can prevent the normal temperature water added to the first water storage device from flowing directly out of the water outlet of the first water storage device, thereby helping to ensure the temperature reliability of the hot water provided by the first water storage device.

[0031] According to another aspect of the present application, a computer-readable storage medium is provided, on which program instructions are stored, and the program instructions are used to execute the above-mentioned water intake temperature control method when running.

[0032] The above technical solution can use the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate to determine the corresponding water flow rates of the first water storage device and the second water storage device (i.e., the first target water flow rate and the second target water flow rate), and can control the first target water flow rate and the second target water flow rate in real time according to the first target water temperature and the third actual water temperature, so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold. This solution can adjust the outlet water temperature more accurately by calculating and controlling the first target water flow rate and the second target water flow rate, which is conducive to enabling users to obtain a water intake temperature as close to their expected temperature as possible when taking water. This precise temperature control solution can greatly improve the user experience of the water intake system.

[0033] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0035] Figure 1 A schematic block diagram of a water intake system according to an embodiment of the present application is shown;

[0036] Figure 2 A schematic flow chart showing a control operation according to an embodiment of the present application;

[0037] Figure 3 A schematic flow chart showing a control operation according to an embodiment of the present application;

[0038] Figure 4 A schematic diagram showing a first characteristic curve according to an embodiment of the present application;

[0039] Figure 5 A schematic flow chart showing a method for controlling water intake temperature according to a specific embodiment of the present application;

[0040] Figure 6 A schematic flow chart showing a method for controlling water intake temperature according to another specific embodiment of the present application;

[0041] Figure 7A schematic block diagram of a control device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present application more obvious, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments described in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0043] In order to solve the above technical problems, the present application provides a method for controlling water intake temperature, which is used in a water intake system. The water intake system includes a first water storage device for providing hot water, a second water storage device for providing normal temperature water, and a water outlet pipeline. The first water storage device and the second water storage device are both connected to the water outlet pipeline. The hot water provided by the first water storage device and the normal temperature water provided by the second water storage device are mixed in the water outlet pipeline and discharged through the water outlet pipeline.

[0044] For the convenience of description and understanding, the following first combines Figure 1 An exemplary structure of a water intake system is described. Figure 1 FIG. 1 is a schematic block diagram of a water intake system according to an embodiment of the present application. Figure 1 As shown, the water intake system includes a first water storage device 110 for providing hot water, a second water storage device 120 for providing normal temperature water, a water outlet pipeline 130 and a control device (not shown in the figure). The first water storage device 110 and the second water storage device 120 are both connected to the water outlet pipeline 130. The hot water provided by the first water storage device 110 and the normal temperature water provided by the second water storage device 120 are mixed in the water outlet pipeline and discharged through the water outlet pipeline 130. It should be noted that Figure 1 The structure of the water intake system shown is only an example and not a limitation of the present application. The water intake system is not limited to Figure 1 For example, Figure 1 The water outlet of the illustrated first water storage device 110 may be disposed at the bottom.

[0045] Optionally, the first water storage device can be any device that can provide hot water, which is currently available or will be developed in the future, including but not limited to a hot tank. Exemplarily, the first water storage device can heat the water stored inside and supply water to the water outlet pipe after the heating is completed. Of course, the hot water in the first water storage device can also have other sources, for example, hot water in other devices can be transferred to the first water storage device. The transfer method includes but is not limited to manual transfer or automatic transmission by a machine. For the convenience of description, the temperature of the water in the first water storage device is called the preset hot water temperature. The user can set the preset hot water temperature. For example, the preset hot water temperature can be 100 degrees Celsius (℃). In some embodiments, the first water storage device can be a heating device with an adjustable heating temperature. At this time, the preset hot water temperature is the heating temperature, and the heating device can heat according to the heating temperature set by the user.

[0046] Optionally, the first water storage device can be connected to a water supply device for supplying water to the first water storage device. The water supply device can be a tap water pipeline, or a water storage container such as a water tank, a pressure barrel, or a water treatment device such as a water purifier. In a specific embodiment, the water supply device can be a second water storage device. The solution of this embodiment directly uses the second water storage device to supply water to the first water storage device, which helps to simplify the waterway structure and reduce the production cost of the water intake system.

[0047] Optionally, the second water storage device can be any device that can supply water at room temperature, either existing or to be developed in the future. For example, the second water storage device can be a water purifier. For another example, the second water storage device can also be a water tank that stores water at room temperature. In some embodiments, the second water storage device can be a large-flux water purifier (maximum water outlet flow rate > 1.1L / min). The water inlet end of the water purifier can be directly connected to the tap water pipeline. The tap water in the tap water pipeline is purified by the water purifier and then supplied to the water outlet pipeline. In other embodiments, the second water storage device can be a small-flux water purifier, in which a water storage container such as a water tank or a pressure barrel can be provided for storing water filtered by the water purifier.

[0048] The method for controlling the water intake temperature may include: performing a control operation when taking water.

[0049] Figure 2 FIG. 1 is a schematic flow chart of a control operation according to an embodiment of the present application. Figure 2 As shown, the control operation S210 may include step S211, step S212, step S213, step S214 and step S215.

[0050] In step S211, a first target water temperature is obtained.

[0051] In this article, the first target water temperature represents the outlet water temperature expected by the user. Optionally, the first target water temperature may be one of the outlet water temperatures preset in the water intake system. In some embodiments, a plurality of different water intake temperatures may be preset in the water intake system. For example, the water intake temperatures may be preset as room temperature, 45°C, 65°C, 85°C and 100°C in sequence. The user may select the desired water temperature from the preset water intake temperatures through the interactive device of the water intake system. This water temperature is the first target water temperature. The interactive device may be a key circuit or a touch screen provided on the water intake system, or may be a remote interactive device such as a mobile phone or a remote controller. Optionally, the first target water temperature may also be the water temperature directly input by the user. In some embodiments, the user may directly input the desired water intake temperature value through the interactive device. The type of the interactive device has been described above and will not be repeated.

[0052] In step S212, a first actual water temperature in the first water storage device and a second actual water temperature in the second water storage device are obtained.

[0053] The first actual water temperature and the second actual water temperature represent the actual water temperature of the water stored in the first water storage device and the second water storage device, respectively. Optionally, the first actual water temperature and the second actual water temperature can be measured by any temperature sensor currently available or to be developed in the future. For example, the temperature sensor can be any one of a thermocouple temperature sensor, a thermistor temperature sensor, and an infrared temperature sensor. Figure 1 In the illustrated embodiment, a first temperature sensor 111 is provided in the first water storage device 110, and a second temperature sensor 121 is provided in the second water storage device 120. The first temperature sensor 111 and the second temperature sensor 121 may both be thermistor temperature sensors. Exemplarily, the first actual water temperature may be any instantaneous temperature value collected by the temperature sensor, or may be a processed temperature value determined by a specific process based on a plurality of instantaneous temperature values ​​collected by the temperature sensor in a preset period (which may be referred to as a first preset period). The specific process may include, but is not limited to, averaging, median, etc. Similarly, the second actual water temperature may be any instantaneous temperature value collected by the temperature sensor, or may be a processed temperature value determined by a specific process based on a plurality of instantaneous temperature values ​​collected by the temperature sensor in a preset period (which may be referred to as a second preset period). The specific process may include, but is not limited to, averaging, median, etc.

[0054] In step S213, based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate, a first target water flow rate of the first water storage device and a second target water flow rate of the second water storage device are determined. The preset flow rate is the sum of the first target water flow rate and the second target water flow rate.

[0055] Optionally, the preset flow rate can be set as needed, and it can be of any size. For example, the preset flow rate can be set according to the maximum water supply flow rate that the first water storage device and the second water storage device can each reach. In one embodiment, the preset flow rate can be the smaller of the maximum water supply flow rate of the first water storage device and the maximum water supply flow rate of the second water storage device. Exemplarily, the preset flow rate can be in the range of [0.1,10]L / min, such as 0.5L / min, 1L / min, 5L / min, etc. In a specific embodiment, the preset flow rate can be 1.2L / min.

[0056] Optionally, the first target water outlet flow rate and the second target water outlet flow rate may be determined by the following formula:

[0057] Q1+Q2=Q M ; Formula (1)

[0058] Q1*T1+Q2*T2=(Q1+Q2)*β; Formula (2)

[0059] In the above formula, Q1 is the first target water flow rate. Q2 is the second target water flow rate. M is the preset flow rate. T1 is the first actual water temperature. T2 is the second actual water temperature. β is the first target water temperature.

[0060] It should be noted that the above formula (2) is only an example and not a limitation of the present application. The first target water flow rate and the second target water flow rate may be calculated in other ways. For example, the first target water flow rate and the second target water flow rate may be calculated using the following formula (3) or (4):

[0061] Q1*T1+Q2*T2=(Q1+Q2)*β+ Q3; Formula (3)

[0062] k1*Q1*T1+ k2*Q2*T2= k3*(Q1+Q2)*β; Formula (4)

[0063] Among them, Q3 is the preset basic flow rate, and k1, k2 and k3 are the preset coefficients.

[0064] In step S214, the first water storage device and the second water storage device are controlled to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively.

[0065] After determining the first target water outlet flow rate and the second target water outlet flow rate through step S213, the first water storage device can be controlled to supply water to the water outlet pipeline according to the first target water outlet flow rate, and the second water storage device can be controlled to supply water to the water outlet pipeline according to the second target water outlet flow rate. Optionally, the water intake system may include a first water pump for pumping water in the first water storage device to the water outlet pipeline and a second water pump for pumping water in the second water storage device to the water outlet pipeline. In this embodiment, the first water storage device and the second water storage device can supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate, respectively, by controlling the respective working parameters of the first water pump and the second water pump. Exemplarily, the working parameters of the water pump may include, but are not limited to, one or more of the following: driving voltage, driving current, driving power, duty cycle of the driving signal, etc. Figure 1 Take the example to explain the installation positions of the first water pump and the second water pump. Figure 1 As shown, the water outlet of the first water storage device 110 is arranged at the top of the first water storage device 110. The water inlet is connected to the water inlet pipeline 140. The water inlet of the water inlet pipeline 140 is connected to the second water storage device 120. The first water pump 150 is arranged on the water inlet pipeline 140. The second water pump 160 is arranged on the delivery pipeline between the second water storage device 120 and the water outlet pipeline 130.

[0066] Exemplarily, the relationship between the working parameters of the water pump and the water flow rate of the water outlet device connected to the water pump can be predetermined. The relationship can be expressed by a functional relationship or a relationship curve (referred to herein as a characteristic curve). Then, the corresponding working parameters can be determined based on the determined relationship and the determined target water flow rate. In some embodiments, the functional relationship between the working parameters of the water pump and the water flow rate of the water outlet device can be calculated by pre-testing. Then, the corresponding working parameters can be calculated based on the functional relationship and the determined target water flow rate. For example, the driving voltage of the first water pump can be calculated by the functional relationship corresponding to the first water pump and the first target water flow rate. In other embodiments, multiple working parameters and multiple water flow rates corresponding to the multiple working parameters can be obtained by pre-testing. Then, according to the above multiple working parameters and multiple water flow rates, the characteristic curve between the working parameters and the water flow rate is fitted. After determining the target water flow rate, the working parameters corresponding to the target water flow rate can be determined on the corresponding characteristic curve according to the target water flow rate. For example, the corresponding driving voltage can be determined in the characteristic curve of the first water pump according to the first target water flow rate.

[0067] In step S215, the third actual water temperature of the water outlet pipeline is obtained.

[0068] In this article, the third actual water temperature represents the actual water temperature of the water in the water outlet pipe. Exemplarily, the third actual water temperature can be any instantaneous temperature value collected by the temperature sensor, or it can be a processed temperature value determined by specific processing based on multiple instantaneous temperature values ​​collected by the temperature sensor within a preset time period (which can be called a third preset time period). As shown above, when the user takes water, the hot water provided by the first water storage device and the normal temperature water provided by the second water storage device are mixed in the water outlet pipe and discharged into the user's water intake container (such as a water cup) through the water outlet pipe. In this article, the water temperature of the water flowing into the water intake container can be regarded as the same as the water temperature in the water outlet pipe. In other words, the third actual water temperature can represent the actual water temperature in the water intake container.

[0069] Similar to the first actual water temperature and the second actual water temperature, the third actual water temperature can also be measured by any temperature sensor currently available or developed in the future. The specific types of temperature sensors have been described in detail above and will not be repeated here.

[0070] Optionally, the position of the temperature sensor (which may be referred to as the third temperature sensor) for measuring the third actual water temperature in the water outlet pipeline can be set as needed. In some embodiments, the third temperature sensor may be set in the middle section of the water outlet pipeline. In other embodiments, the third temperature sensor may be set near the water outlet of the water outlet pipeline. It can be understood that the water temperature at the water outlet of the water outlet pipeline is closer to the actual water temperature in the water collection container. Therefore, it is a more desirable setting to set the third temperature sensor near the water outlet of the water outlet pipeline. Figure 1 The setting position of the third temperature sensor is described by taking as an example. Figure 1 As shown, a water mixing chamber 131 is provided on the water outlet pipe 130. The sensing end of the third thermometer 132 is provided in the water mixing chamber 131.

[0071] Exemplarily, step S215, the step of obtaining the third actual water temperature of the water outlet pipeline can be performed after the preset time of water extraction. It can be understood that when the water extraction system is not working, a portion of water that has not been taken by the user will remain in the water outlet pipeline. When the user extracts water, the first water to flow out will be the water retained in the water outlet pipeline. In this embodiment, the third actual water temperature of the water outlet pipeline is obtained after the preset time of water extraction, thereby helping to ensure that the measured actual water temperature is the actual water temperature of the water obtained by mixing the hot water provided by the first water storage device and the normal temperature water provided by the second water storage device during this water extraction process, thereby helping to provide a more accurate basis for subsequent steps (such as step S216). The preset time can be set according to actual needs. For example, the preset time can be determined based on the amount of water retained in the water outlet pipeline and the current total water outlet flow rate (i.e., the preset flow rate). In a specific embodiment, the preset time can be in the range of [1,10] seconds (s), such as 1s, 2s, 5s, etc. Of course, the above scheme is only an example, and the step of obtaining the third actual water temperature of the water outlet pipeline can also be performed immediately after the water extraction starts. For example, the start time of water extraction can be based on the time when the water extraction system receives the user's water extraction instruction, that is, the time when the water extraction system receives the user's water extraction instruction can be used as the start time of water extraction.

[0072] In step S216, based on the third actual water temperature and the first target water temperature, the first target water flow rate and / or the second target water flow rate are controlled so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold.

[0073] The first preset threshold value can be set to any appropriate value as needed. Exemplarily, the first preset threshold value can be in the range of [0,5]°C. For example, the first preset threshold value can be 0.5°C, 1°C, 2°C, 3°C, etc.

[0074] In this article, the difference between the third actual water temperature and the first target water temperature is the absolute value of the result obtained by subtracting the first target water temperature from the third actual water temperature. After obtaining the third actual water temperature via step S215, the difference between the third actual water temperature and the first target water temperature can be calculated. The difference is then compared with the first preset threshold. When the difference is less than or equal to the first preset threshold, it can be considered that the current outlet water temperature meets the user's needs, and there is no need to adjust the first target outlet water flow rate and the second target outlet water flow rate. When the difference is greater than the first preset threshold, the first target outlet water flow rate and / or the second target outlet water flow rate can be adjusted and steps S214 and S215 are returned to execute so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold.

[0075] The above technical solution can use the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate to determine the corresponding water flow rates of the first water storage device and the second water storage device (i.e., the first target water flow rate and the second target water flow rate), and can control the first target water flow rate and the second target water flow rate in real time according to the first target water temperature and the third actual water temperature, so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold. This solution can adjust the outlet water temperature more accurately by calculating and controlling the first target water flow rate and the second target water flow rate, which is conducive to enabling users to obtain a water intake temperature as close to their expected temperature as possible when taking water. This precise temperature control solution can greatly improve the user experience of the water intake system.

[0076] Exemplarily, in step S213, before determining the first target water flow rate of the first water storage device and the second target water flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate, the control operation may include the following steps: judging whether the first actual water temperature is greater than the second target water temperature, wherein the second target water temperature is greater than or equal to the first target water temperature, or the second target water temperature is less than the first target water temperature and the difference between the first target water temperature and the second target water temperature is less than or equal to the first preset threshold. When the first actual water temperature is less than or equal to the second target water temperature, outputting a first prompt message; controlling the first water storage device and the second water storage device to stop supplying water; and controlling the first water storage device to heat. The first prompt message is used to prompt the user that the hot water in the first water storage device needs to be heated. The step of determining the first target water flow rate of the first water storage device and the second target water flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate is performed when the first actual water temperature is greater than the second target water temperature.

[0077] The second target water temperature may be the highest water temperature among the first specific water temperatures determined by theory or experiment, and the first specific water temperature is a temperature at which the actual water temperature at the outlet pipe cannot satisfy the requirement that the difference between the actual water temperature at the outlet pipe and the first target water temperature is less than or equal to the first preset threshold value based on the hot water at the temperature alone. In other words, the second target water temperature may be the lowest water temperature among the second specific water temperatures determined by theory or experiment, and the second specific water temperature is a temperature at which the actual water temperature at the outlet pipe satisfies the requirement that the difference between the actual water temperature at the outlet pipe and the first target water temperature is less than or equal to the first preset threshold value based on the hot water at the temperature alone. Optionally, the second target water temperature may be set to: the second target water temperature is greater than or equal to the first target water temperature, or the second target water temperature may be set to: the second target water temperature is less than the first target water temperature and the difference between the first target water temperature and the second target water temperature is less than or equal to the first preset threshold value. In this article, the difference between the first target water temperature and the second target water temperature is the absolute value of the result obtained by subtracting the second target water temperature from the first target water temperature. Preferably, the second target water temperature is equal to the first target water temperature, that is, the first actual water temperature can be directly compared with the first target water temperature. If the first actual water temperature is less than or equal to the first target water temperature, operations such as outputting the first prompt information can be performed.

[0078] For example, in step S213, before determining the first target water flow rate of the first water storage device and the second target water flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate, the control operation may also include the following steps: when the first target water temperature is 100°C, judging whether the first actual water temperature is greater than 95°C. If the first actual water temperature is greater than 95°C, the water intake system can supply water normally. If the first actual water temperature is less than or equal to 95°C, the water intake system can stop supplying water and prompt the user that the hot water in the first water storage device needs to be heated.

[0079] It can be understood that the water transported to the outside by the water outlet pipeline depends on the water provided by the first water storage device and / or the second water storage device. In other words, in the present application, the hot water provided by the first water storage device is mainly mixed with the normal temperature water provided by the second water storage device to obtain water whose outlet water temperature meets the needs of users. When the hot water temperature in the first water storage device is lower than the second target water temperature, it is impossible to mix the hot water provided by the first water storage device with the normal temperature water provided by the second water storage device to obtain water whose outlet water temperature meets the needs of users. When the hot water temperature in the first water storage device is equal to the second target water temperature, due to the heat loss of the hot water in the process of being transported from the first water storage device to the outlet of the water outlet pipeline, it is also difficult to provide water whose outlet water temperature meets the needs of users. Therefore, in the above scheme, the step of determining the first target outlet water flow rate of the first water storage device and the second target outlet water flow rate of the second water storage device is only performed when the first actual water temperature is higher than the second target water temperature. Thus, it helps to improve the user experience.

[0080] Exemplarily, the operation of determining whether the first actual water temperature is greater than the second target water temperature can be performed when the difference between the first target water temperature and the normal temperature is less than a preset threshold value (which can be referred to as a fourth preset threshold value). Normal temperature is the temperature corresponding to the normal temperature water in the second water outlet device or any preset temperature. Exemplarily, the normal temperature can be in the range of [25,40]°C, such as 27°C, 30°C, 35°C, etc. The difference between the first target water temperature and the normal temperature is the absolute value of the result obtained by subtracting the normal temperature from the first target water temperature. When the difference between the first target water temperature and the normal temperature is less than or equal to the fourth preset threshold value, the second water storage device can be controlled to supply water to the water outlet pipeline alone, that is, the second water storage device supplies water while the first water storage device does not supply water. In addition, when the difference between the first actual water temperature and the first target water temperature is less than the first preset threshold value, the first water storage device can be controlled to supply water to the water outlet pipeline alone, that is, the first water storage device supplies water while the second water storage device does not supply water. The above-mentioned fourth preset threshold value can be set to any suitable value as needed. The fourth preset threshold value may be equal to or different from the first preset threshold value. Exemplarily, the fourth preset threshold value may be in the range of [0,5]°C. For example, the fourth preset threshold value may be 0.5°C, 1°C, 2°C, 3°C, etc.

[0081] When the first actual water temperature is less than or equal to the second target water temperature, any one or more of the following operations may be performed: outputting a first prompt message; controlling the first water storage device and the second water storage device to stop supplying water; controlling the first water storage device to heat.

[0082] Optionally, the control operation may include the following steps: when the first actual water temperature is less than or equal to the second target water temperature, output the first prompt information. The first prompt information described herein may include one or more of audio information, text information, image information, video information, light information, etc. In one or some embodiments, the water intake system may include an information output device. Exemplarily, the information output device may include one or more of a display device, a buzzer alarm, a speaker, a light-emitting device, a communication device, etc. The communication device may include any wired communication device and / or a wireless communication device. Exemplarily, the display device is used to output one or more of text information, image information and video information, and the buzzer alarm and the speaker are used to output audio information. The light-emitting device is used to output light information. The communication device is used to transmit any form of the first prompt information to any associated device. The associated device may include but is not limited to a personal computer, a server, a mobile terminal (such as a user's smart phone), etc. In a specific embodiment, the information output device may be a buzzer alarm, and the first prompt information may be an alarm prompt sound emitted by the buzzer alarm. In another specific embodiment, the information output device may also be a display device, and the first prompt information may be a text message displayed on the display device. For example, when the first actual water temperature is less than or equal to the second target water temperature, characters such as "need to heat" may be displayed on the display device to remind the user that the first water storage device currently needs to be heated and the water intake system is temporarily unable to provide water at the current first target water temperature. The above-mentioned type of first prompt information is only an example, and the first prompt information of the present application may also be in other forms. For example, a prompt may be given in the form of graphics and text on the screen of a user terminal interconnected with the hot tank network, or a light prompt and / or voice prompt may be given through an indicator light, a voice player, etc. on the hot tank. Specifically, for example, when the first actual water temperature is less than or equal to the second target water temperature, a voice prompt "need to heat" may be given.

[0083] The above technical solution outputs a first prompt message when the first actual water temperature is less than or equal to the second target water temperature to prompt the user that the hot water in the first water storage device needs to be heated. This can avoid providing water that does not meet the user's needs, and can facilitate the user to understand the working status of the water intake system, which helps to further improve the user's experience.

[0084] Optionally, the control operation may include the following steps: when the first actual water temperature is less than or equal to the second target water temperature, control the first water storage device to heat. The operation of controlling the first water storage device to heat can be performed when the first water storage device and the second water storage device stop supplying water, or when the first water storage device and the second water storage device keep supplying water. That is to say, the water supply can be stopped first, and then the water supply can be optionally continued after the first water storage device is heated. It is also possible to heat while supplying water. The former is conducive to users obtaining water with more accurate outlet temperature and more in line with user needs at the outlet pipe, and the latter can save water collection time to a certain extent. It is more desirable that the scheme of heating while supplying water can be executed when the difference between the first actual water temperature and the second target water temperature is small, for example, when the difference between the first actual water temperature and the second target water temperature is less than or equal to the fifth preset threshold. The fifth preset threshold may be equal to or different from either or both of the first preset threshold and the fourth preset threshold. Exemplarily, the fifth preset threshold may be in the range of [0,5]℃. For example, the fifth preset threshold may be 0.5°C, 1°C, 2°C, 3°C, etc.

[0085] The above technical solution automatically controls the first water storage device to heat when the first actual water temperature is less than or equal to the second target water temperature. The temperature of the hot water in the first water storage device can be raised to a level that allows the outlet water temperature to reach the user's desired temperature as soon as possible through automatic heating, which can bring users an intelligent use experience to further enhance the overall user experience.

[0086] Optionally, the control operation may include the following steps: when the first actual water temperature is less than or equal to the second target water temperature, controlling the first water storage device and the second water storage device to stop supplying water.

[0087] The above technical solution automatically stops water supply when the first actual water temperature is less than or equal to the second target water temperature. Stopping water supply can facilitate users to suspend water collection to wait for the first water storage device to heat up or perform other actions (such as lowering the first target water temperature).

[0088] Exemplarily, when the first actual water temperature is less than or equal to the second target water temperature, after controlling the first water storage device to heat up, the control operation also includes: after the heating of the first water storage device is completed, performing one or more of the following operations: outputting a second prompt message; controlling the first water storage device and the second water storage device to continue supplying water; wherein the second prompt message is used to prompt the user that the heating of the first water storage device is completed.

[0089] Optionally, the control operation may further include the following steps: after the first water storage device is heated, outputting a second prompt message to prompt the user that the heating of the first water storage device is completed.

[0090] Exemplarily, when the first water storage device is heated to such an extent that the first actual temperature is greater than the second target water temperature, it can be determined that the heating of the first water storage device is completed. Similar to the first prompt information, the second prompt information may also include one or more of audio information, text information, image information, video information, light information, etc. In the embodiment in which the above-mentioned information output device is a display device, the second prompt information may be text information displayed on the display device. After the heating of the first water storage device is completed, characters such as "heating completed" may be displayed on the display device to remind the user that water can be taken normally at present.

[0091] Through the above technical solution, the user can be notified in time that the heating of the first water storage device is completed, so that the user can understand the working status of the water intake system and it is convenient for the user to perform the next operation, such as continuing to take water.

[0092] Optionally, the control operation may further include the following steps: after the first water storage device is heated, controlling the first water storage device and the second water storage device to continue supplying water.

[0093] Through the above technical solution, after the first water storage device is heated, the first water storage device and the second water storage device can be automatically controlled to continue supplying water, so as to automatically continue the previous water extraction process. This can further improve the intelligence of the water extraction system and further enhance the user experience.

[0094] Optionally, after the first water storage device is heated, the first water storage device and the second water storage device may be controlled to continue supplying water while the second prompt information is output.

[0095] Exemplarily, the control operation may further include the following steps: obtaining a target water output, accumulating the total water output of the water outlet pipeline during the current water intake process, and controlling the first water storage device and the second water storage device to stop supplying water when the total water output reaches the target water output.

[0096] In this article, the total water output reaches the target water output, indicating that the total water output is greater than or equal to the target water output. Exemplarily, the target water output may be a fixed water output set by default. Alternatively, the target water output may be determined based on the user's input information. In some embodiments, the target water output may be a water output directly input by the user. For example, the user may directly set the required water output on the interactive device of the water intake system. The water output may be, for example, 200 milliliters (ml), 250ml, 300ml, etc. In other embodiments, options representing different water outputs may be preset in the water intake system, and the options may be, for example, a small cup, a medium cup, and a large cup. Among them, the water output represented by the small cup may be 250ml, the water output represented by the medium cup may be 350ml, and the water output represented by the large cup may be 500ml. The user may select any option on the interactive device of the water intake system as needed. The water output corresponding to the option is the target water output.

[0097] Optionally, the total water output can be accumulated by any existing or future developed device capable of measuring water volume changes. For example, a flow meter can be set on the water outlet pipeline to directly monitor the total water output. Alternatively, flow meters can be set on the first water storage device and the second water storage device respectively to monitor the first water output of the first water storage device and the second water output of the second water storage device respectively. The total water output is the sum of the first water output and the second water output. For example, in Figure 1 In the illustrated embodiment, the first flow meter 170 is installed on the water inlet pipeline 140, and the second flow meter 180 is installed on the delivery pipeline between the second water storage device 120 and the water outlet pipeline 130. The total water output is the sum of the first water output measured by the first flow meter 170 and the second water output measured by the second flow meter 180.

[0098] Figure 3 FIG. 1 is a schematic flow chart of a judgment operation related to the total water output according to an embodiment of the present application. In this embodiment, the target water output is 750 ml. Figure 3 As shown, first, step S310 is executed to accumulate the total water output during this water intake process. Then, step S320 is executed to determine whether the total water output reaches 750 ml. If the total water output reaches 750 ml, step S330 is executed to stop water supply. Otherwise, return to step S310 to continue to accumulate the total water output during this water intake process.

[0099] According to the above technical solution, when the total water output reaches the target water output, the first water storage device and the second water storage device are controlled to stop supplying water, thereby preventing water from overflowing the user's water collection container. This solution can automatically stop supplying water according to the target water output, which is conducive to further improving the user's experience.

[0100] Exemplarily, the water outlet system also includes a first water pump and a second water pump; the first water pump is used to pump water in the first water storage device to the water outlet pipeline; the second water pump is used to pump water in the second water storage device to the water outlet pipeline.

[0101] Step S214, controlling the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively, may include the following steps:

[0102] A first characteristic curve and a second characteristic curve are obtained. The first characteristic curve is used to represent the relationship between the driving voltage of the first water pump and the water flow rate of the first water storage device. The second characteristic curve is used to represent the relationship between the driving voltage of the second water pump and the water flow rate of the second water storage device.

[0103] Based on the first characteristic curve and the first target water flow rate, a driving voltage of the first water pump is determined.

[0104] Based on the second characteristic curve and the second target water flow rate, a driving voltage of the second water pump is determined.

[0105] Based on the driving voltages corresponding to the first water pump and the second water pump, the first water pump and the second water pump are controlled to operate, so as to control the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively.

[0106] Optionally, both the first characteristic curve and the second characteristic curve can be obtained by pre-testing. After obtaining the first characteristic curve and the second characteristic curve, the driving voltages of the first water pump and the second water pump can be determined on the first characteristic curve and the second characteristic curve respectively based on the first target water flow rate and the second target water flow rate, and the first water pump and the second water pump can be controlled to operate based on the driving voltages of the first water pump and the second water pump.

[0107] Optionally, the first water pump and the second water pump can both be selected to have relatively straight flow characteristic curves and small errors (i.e., the difference between the theoretical output flow and the actual output flow is small). Thus, when the outlet water temperature is subsequently controlled by adjusting the first target outlet water flow and the second target outlet water flow, more accurate adjustment can be achieved.

[0108] Figure 4 A schematic diagram of a first characteristic curve according to an embodiment of the present application is shown. As shown in the figure, the abscissa of the first characteristic curve represents the driving voltage, and the ordinate represents the water flow rate Q. After determining the first target water flow rate, the coordinate point corresponding to the first target water flow rate can be found on the first characteristic curve. The abscissa corresponding to the coordinate point is the driving voltage of the first water pump. For example, if the first target water flow rate is 1000 milliliters per minute (ml / min), it can be determined that the driving voltage of the first water pump is 12V.

[0109] In the above technical solution, the driving voltages corresponding to the first water pump and the second water pump are respectively determined on the first characteristic curve and the second characteristic curve according to the first target water flow rate and the second target water flow rate. The calculation process of this solution is simple, and the driving voltages corresponding to the first water pump and the second water pump can be determined more reliably.

[0110] Exemplarily, step S214, controlling the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively, may include the following steps:

[0111] Either or both of the first water storage device and the second water storage device are used as target water storage devices, and the actual water outflow rate of the target water storage device is obtained.

[0112] It is determined whether the difference between the actual water outflow rate and the target water outflow rate is less than or equal to a third preset threshold.

[0113] When the difference between the actual water outlet flow rate and the target water outlet flow rate is greater than the third preset threshold value, repeat the following steps until the difference between the actual water outlet flow rate and the target water outlet flow rate is less than or equal to the third preset threshold value: if the actual water outlet flow rate is less than the target water outlet flow rate, increase the driving voltage of the target water pump; the target water pump is a water pump corresponding to the target water storage device; if the actual water outlet flow rate is greater than the target water outlet flow rate, reduce the driving voltage of the target water pump.

[0114] When the difference between the actual water outlet flow rate and the target water outlet flow rate is less than or equal to the third preset threshold, the driving voltage of the target water pump is recorded.

[0115] At least based on the recorded driving voltage and target water outlet flow rate, the target characteristic curve is adjusted; the target characteristic curve is used to represent the relationship between the driving voltage of the target water pump and the water outlet flow rate of the target water storage device.

[0116] Optionally, the actual water flow rate can be measured by any device that can measure the change in water volume, which is currently available or will be developed in the future. For example, a first flow meter corresponding to the first water storage device and a second flow meter corresponding to the second water storage device can be respectively provided to monitor the actual water flow rates of the first water storage device and the second water storage device, respectively.

[0117] In this article, the difference between the actual water outflow rate and the target water outflow rate is the absolute value of the result obtained by subtracting the target water outflow rate from the actual water outflow rate. Optionally, the third preset threshold value can be set as needed. It can be understood that the larger the third preset threshold value, the lower the control accuracy of the water outflow rate; the smaller the third preset threshold value, the higher the control accuracy of the water outflow rate. Therefore, the third preset threshold value can be set according to the desired control accuracy of the water outflow rate. Exemplarily, the third preset threshold value can be in [0,0.5] L / min, for example, equal to 0.05 L / min, 0.1 L / min, 0.3 L / min, etc.

[0118] The above scheme is explained by taking the first characteristic curve as an example. After the first water storage device and the second water storage device start to supply water to the water outlet pipeline, the first flow meter can be used to monitor the first actual water outlet flow of the first water storage device, and determine whether the difference between the first actual water outlet flow and the first target water outlet flow is less than or equal to the third preset threshold. When the difference between the first actual water outlet flow and the first target water outlet flow is greater than the third preset threshold, the driving voltage of the first water pump can be adjusted so that the difference between the first actual water outlet flow and the first target water outlet flow is less than or equal to the third preset threshold. The specific adjustment process is: if the first actual water outlet flow is greater than the first target water outlet flow, the driving voltage of the first water pump can be reduced; if the first actual water outlet flow is less than the first target water outlet flow, the driving voltage of the first water pump can be increased. When the difference between the first actual water outlet flow and the first target water outlet flow is less than or equal to the third preset threshold, the current driving voltage can be recorded, and the first characteristic curve can be refitted according to the driving voltage and the corresponding first target water outlet flow.

[0119] It is understandable that the adjustment method of the second characteristic curve is similar to that of the first characteristic curve, and will not be described in detail here for the sake of brevity.

[0120] After fitting to obtain a new first characteristic curve and / or second characteristic curve, the first target water flow rate and the second target water flow rate can be calculated based on the new characteristic curve. As the water intake system is used for a longer time, the performance of the water pump decreases, which may cause the characteristic curve to become increasingly inaccurate. Therefore, timely adjustment of the characteristic curve helps to improve the water volume control accuracy of the water intake system, thereby improving the temperature control accuracy of the water intake temperature.

[0121] The above technical solution adjusts the driving voltage of the target water pump based on the difference between the actual water flow rate and the target water flow rate, which can make the actual water flow rate more accurate, thereby helping to improve the temperature control accuracy of this water intake. And the solution readjusts the characteristic curve based on the adjusted driving voltage, which helps to obtain a more reliable characteristic curve, which helps to further improve the temperature control accuracy of subsequent water intake.

[0122] Exemplarily, step S216, based on the third actual water temperature and the first target water temperature, controls the first target water flow rate and / or the second target water flow rate, which may include the following steps: determining whether the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold; when the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold, repeating the following steps until the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold: when the third actual water temperature is greater than the first target water temperature, reducing the first target water flow rate and / or increasing the second target water flow rate; when the third actual water temperature is less than the first target water temperature, increasing the first target water flow rate and / or reducing the second target water flow rate. This flow regulation method may be referred to as the first flow regulation method.

[0123] Optionally, when the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold, only the first target water flow rate can be adjusted. In one embodiment, the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold. If the third actual water temperature is greater than the first target water temperature, the first target water flow rate can be reduced. If the third actual water temperature is less than the first target water temperature, the first target water flow rate can be increased.

[0124] Optionally, when the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold, only the second target water flow rate can be adjusted. In one embodiment, the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold. If the third actual water temperature is greater than the first target water temperature, the second target water flow rate can be increased. If the third actual water temperature is less than the first target water temperature, the second target water flow rate can be reduced.

[0125] Optionally, when the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold, the first target water flow rate and the second target water flow rate can be adjusted simultaneously. In one embodiment, the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold. If the third actual water temperature is greater than the first target water temperature, the first target water flow rate can be reduced, and the second target water flow rate can be increased at the same time. If the third actual water temperature is less than the first target water temperature, the first target water flow rate can be increased, and the second target water flow rate can be reduced at the same time.

[0126] Optionally, the target water flow rate adjusted in the two cases where the third actual water temperature is greater than the first target water temperature and the third actual water temperature is less than the first target water temperature can be the same or different. The following is an exemplary description of the scheme in which the target water flow rate adjusted in the above two cases is different. In one embodiment, the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold. At this time, in one example, if the third actual water temperature is greater than the first target water temperature, the first target water flow rate can be reduced; if the third actual water temperature is less than the first target water temperature, the second target water flow rate can be reduced. In another example, if the third actual water temperature is greater than the first target water temperature, the second target water flow rate can be increased; if the third actual water temperature is less than the first target water temperature, the first target water flow rate can be increased and the second target water flow rate can be reduced at the same time. For the scheme in which the target water flow rate adjusted in the two cases where the third actual water temperature is greater than the first target water temperature and the third actual water temperature is less than the first target water temperature is different, the various specific implementation schemes contained in this type of scheme can be understood with reference to the above two examples and will not be repeated.

[0127] In the above technical solution, when the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold, the first target water flow rate and / or the second target water flow rate are continuously increased or decreased so that the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold. The flow rate adjustment method of this solution is simple, which helps to achieve rapid adjustment of the third actual water temperature, thereby helping to better meet the user's usage needs.

[0128] Figure 5 FIG. 1 is a schematic flow chart showing a method for controlling water intake temperature according to a specific embodiment of the present application. Figure 5 As shown, the method may include the following steps S510, S520, S530, S540, S550, S560 and S570.

[0129] In step S510, a first target water temperature β set by a user is obtained. In this embodiment, the first target water temperature is 85°C.

[0130] In step S520, the first actual water temperature T1 and the second actual water temperature T2 are acquired.

[0131] In step S530, determine whether T1 is greater than the second target water temperature. In this embodiment, the second target water temperature is equal to the first target water temperature, that is, equal to 85°C. If T1>85°C, execute step S540; otherwise, end water extraction and prompt that preheating is required. That is, in this step, when T1≤85°C, the first prompt information can be output to prompt the user that the hot water in the first water storage device needs to be heated. The implementation method of step S530 can be understood with reference to the relevant embodiments above and will not be repeated here.

[0132] In step S540, the first target water flow rate Q1 of the first water storage device and the second target water flow rate Q2 of the second water storage device are determined. In this step, the first target water temperature 85°C, the first actual water temperature T1, the second actual water temperature T2 and the preset flow rate Q M , determine the first target water outflow rate Q1 of the first water storage device and the second target water outflow rate Q2 of the second water storage device. Specifically, optionally, the first target water outflow rate Q1 and the second target water outflow rate Q2 can be determined by the following formula:

[0133] Q1+Q2=Q M ;

[0134] Q1*T1+Q2*T2=(Q1+Q2)*85℃.

[0135] In step S550, the driving voltages V1 and V2 corresponding to the first water pump and the second water pump are calculated. In this step, optionally, the driving voltages V1 and V2 corresponding to the first water pump and the second water pump can be calculated according to the first target water flow rate Q1 and the second target water flow rate Q2, and based on the characteristic curves corresponding to the first water pump and the second water pump. After the driving voltages V1 and V2 are obtained, the first water pump and the second water pump can be controlled according to V1 and V2, respectively, so that the first water storage device and the second water storage device supply water to the water outlet pipeline according to the first target water flow rate and the second target water flow rate, respectively.

[0136] When the first water storage device and the second water storage device are controlled to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively, the third actual water temperature T c , and at T c When the difference between the actual water temperature T and the first target water temperature is greater than the first preset threshold, step S560 is executed. Alternatively, when the first water storage device and the second water storage device are controlled to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively, step S560 can be automatically executed without obtaining the third actual water temperature T c .

[0137] Step S560 includes step S561, step S562, step S563, step S564 and step S565. In step S561, it is determined whether the actual water outflow q meets the requirement of the target water outflow Q. Exemplarily, when the difference between the actual water outflow and the target water outflow is less than or equal to the third preset threshold, it can be regarded that the actual water outflow q meets the requirement of the target water outflow Q. In this step, the first water pump and the second water pump can be used as target water pumps respectively, and it is determined whether the difference between the actual water outflow and the target water outflow is less than or equal to the third preset threshold. When the difference between the actual water outflow and the target water outflow is greater than the third preset threshold, step S562 is executed to determine whether the actual water outflow q is greater than the target water outflow Q. If the actual water flow rate is less than the target water flow rate, execute step S563, increase the driving voltage of the corresponding pump, and return to step S561 after the driving voltage is increased; if the actual water flow rate is greater than the target water flow rate, execute step S564, reduce the driving voltage of the corresponding pump, and return to step S561 after the driving voltage is reduced. When the difference between the actual water flow rate and the target water flow rate is less than or equal to the third preset threshold, execute step S565, record the driving voltage of the corresponding pump, and adjust the corresponding characteristic curve. In this step, the characteristic curve can be adjusted based on the recorded driving voltage and target water flow rate to make the characteristic curve more reliable. After the characteristic curve adjustment is completed, execute step S570.

[0138] In step S570, first, it is determined whether the difference between the third actual water temperature and the first target water temperature is less than or equal to a first preset threshold. Figure 5 In the embodiment shown, the first preset threshold is 0, that is, the third actual water temperature T is directly determined. c Is it equal to the first target water temperature of 85°C? c =85℃, then maintain V1 and V2. If T c ≠85℃, then determine the third actual water temperature T c Is it greater than the first target water temperature of 85°C? c >85°C, the driving voltage V1 of the first water pump can be reduced. c When the temperature is less than 85°C, the driving voltage V1 of the first water pump can be increased. Repeat this adjustment process until T c =85℃.

[0139] Above Figure 5 The control method of water intake temperature shown is only an example and not a limitation of the present application. The present application is not limited to this implementation. For example, step S560 may not be executed, that is, step S570 may be automatically executed after step S550 is executed. For another example, when T c >85°C, the driving voltage V2 of the second water pump can be increased.c When the temperature is less than 85° C., the driving voltage V1 of the first water pump may be increased, while the driving voltage V2 of the second water pump may be reduced.

[0140] Exemplarily, the control operation also includes: determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to the second preset threshold value, the fourth actual water temperature is the third actual water temperature or is determined based on the third actual water temperature within a preset time period; when the difference between the fourth actual water temperature and the first target water temperature is greater than the second preset threshold value, determining the third target water temperature based on the fourth actual water temperature and the first target water temperature. For this water extraction, the control operation also includes: using the third target water temperature as the new first target water temperature, returning to the step of determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate.

[0141] The above flow rate regulation method can be referred to as the second flow rate regulation method.

[0142] Exemplarily, the fourth actual water temperature may be any instantaneous temperature value collected by the temperature sensor, or may be a processed temperature value determined by specific processing based on multiple instantaneous temperature values ​​collected by the temperature sensor within a preset period (which may be referred to as the fourth preset period). In one embodiment, the fourth actual water temperature is the third actual water temperature. At this time, when the third actual water temperature is an instantaneous temperature value, the fourth actual water temperature is also an instantaneous temperature value. When the third actual water temperature is a processed temperature value, the fourth actual water temperature is also a processed temperature value. In another embodiment, the fourth actual water temperature is determined based on the third actual water temperature within the preset period. At this time, the third actual water temperature may be an instantaneous temperature value, and the fourth actual water temperature may be a processed temperature value. Of course, in this embodiment, it is also feasible that both the third actual water temperature and the fourth actual water temperature are processed temperature values, but the fourth actual water temperature is determined by further processing the third actual water temperature. Further processing may include, but is not limited to, averaging multiple third actual water temperatures, and at this time the fourth preset period may include at least two third preset periods.

[0143] Any two of the first preset period, the second preset period, the third preset period and the fourth preset period described above may be equal or unequal. Optionally, each of the first preset period, the second preset period, the third preset period and the fourth preset period described above may be set as needed. It can be understood that the longer the preset period, the more instantaneous temperature values ​​(i.e., the instantaneous temperature values ​​measured within the preset period) used to calculate the actual water temperature, and the more accurate the actual water temperature obtained. However, a longer preset period will result in a shorter time for adjusting the outlet water temperature during the current water intake process, which may affect the adjustment effect of the outlet water temperature, and may further result in the inability to obtain an outlet water temperature that meets the user's needs. Therefore, the preset period can be determined based on the calculation accuracy of the fourth actual water temperature and the water intake time. For example, any one or more preset periods of the first preset period, the second preset period, the third preset period and the fourth preset period described above may be within the range of [1s, 5s]. In a specific embodiment, the preset period may be 2s, 3s, 4s, etc.

[0144] The third target water temperature can be used as the new first target water temperature in this water intake or the next water intake to determine the first target water outflow rate and the second target water outflow rate. Optionally, the third target water temperature can be determined based on the average of the fourth actual water temperature and the first target water temperature. Alternatively, the third target water temperature can be determined based on the difference between the fourth actual water temperature and the first target water temperature. The determination method is described in detail below.

[0145] In this article, the difference between the fourth actual water temperature and the first target water temperature is the absolute value of the result obtained by subtracting the first target water temperature from the fourth actual water temperature. Based on the third target water temperature (i.e., the new first target water temperature), a new first target water outlet flow rate and a new second target water outlet flow rate can be determined. The method for determining the new first target water outlet flow rate and the new second target water outlet flow rate is similar to the method for determining the first target water outlet flow rate and the second target water outlet flow rate described above, and will not be repeated. After determining the new first target water outlet flow rate and the new second target water outlet flow rate, the first water storage device can be controlled to supply water to the water outlet pipeline at the new first target water outlet flow rate, and the second water storage device can be controlled to supply water to the water outlet pipeline at the new second target water outlet flow rate, so that the water temperature of the mixed water in the water outlet pipeline meets the user's usage requirements.

[0146] Exemplarily, the control operation further includes: determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to the second preset threshold value, the fourth actual water temperature is the third actual water temperature or is determined based on the third actual water temperature within a preset time period; when the difference between the fourth actual water temperature and the first target water temperature is greater than the second preset threshold value, determining the third target water temperature based on the fourth actual water temperature and the first target water temperature. For any subsequent water extraction, the third target water temperature is used as the new first target water temperature, and the step of determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate is performed.

[0147] Assume that in the first water extraction, the first target water temperature is 85°C, and the fourth actual water temperature is 90°C, and assume that the third target water temperature is determined to be 80°C in the first water extraction. In any subsequent water extraction, if the first target water temperature specified by the user is also 85°C, the target water flow rate can no longer be determined based on 85°C, but the third target water temperature of 80°C determined in the first water extraction can be used as the new first target water temperature to determine the first target water flow rate and the second target water flow rate.

[0148] It can be seen from the above embodiments that the third target water temperature determined in any water intake can be used to redetermine the first target water outlet flow rate and the second target water outlet flow rate in the current water intake, and can also be used to determine the first target water outlet flow rate and the second target water outlet flow rate in subsequent water intakes, and can also be used for both the current water intake and subsequent water intakes.

[0149] The above technical solution uses the fourth actual water temperature and the first target water temperature to determine a new first target water temperature, and based on the new first target water temperature, re-determines the target water flow rate corresponding to the first water storage device and the second water storage device in this water intake and / or subsequent water intake, thereby helping to ensure that the outlet water temperature meets the user's usage requirements. The new first target water temperature determined by the solution helps to improve the control accuracy of the outlet water temperature of this water intake when applied to the current water intake process, and helps to reduce the water temperature adjustment time in the subsequent water intake process when applied to the subsequent water intake process, which is conducive to further improving the user's usage experience.

[0150] Exemplarily, the control operation may also include the following steps: obtaining the interval between the last water extraction and the current water extraction; determining whether the interval is greater than or equal to a duration threshold; and determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to a second preset threshold. The step is performed when the interval is greater than or equal to the duration threshold.

[0151] It can be understood that since a portion of water that has not been taken by the user will remain in the water outlet pipeline, the fourth actual water temperature measured by this water extraction may be affected by the actual water temperature of the last water extraction. For example, the first target water temperature of the last water extraction was 100°C, and the first target water temperature of this water extraction is 50°C. The first target temperature of this water extraction has dropped significantly. If the interval between the two water extractions is short, the water temperature of the water remaining in the water outlet pipeline itself may be relatively high. At this time, the measured outlet water temperature is not the actual water temperature of the water obtained by mixing the hot water provided by the first water storage device and the normal temperature water provided by the second water storage device during this water extraction process. In the above scheme, when the interval duration is greater than or equal to the duration threshold, the step of determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to the second preset threshold is performed, thereby improving the accuracy of the fourth actual water temperature.

[0152] Optionally, the duration threshold can be set as needed. For example, a suitable duration threshold can be determined by pre-testing. Optionally, the duration threshold can be a fixed value. Exemplarily, the duration threshold can be in the range of [1,60] s. For example, the duration threshold can be 5s, 10s, 30s, etc. Alternatively, the duration threshold can be variable. For example, different duration thresholds can be set according to the first target water temperature of the last water extraction. Exemplarily, the higher the first target water temperature of the last water extraction, the longer the duration threshold can be. Alternatively, multiple preset temperature ranges and duration thresholds corresponding to multiple preset temperature ranges can be predetermined. If the first target water temperature of the last water extraction falls into one of the multiple preset temperature ranges, the duration threshold is determined to be the duration threshold corresponding to the preset temperature range currently falling into. In a specific embodiment, when the first target water temperature of the last water extraction is 100°C, the duration threshold can be 10s. When the first target water temperature of the last water extraction is 50°C, the duration threshold can be 7s.

[0153] Optionally, the control operation may further include the following steps: when the last water extraction ends, record the end time. When the water is extracted this time, record the start time. The interval duration is the difference between the start time and the end time. Alternatively, the control operation may further include the following steps: when the last water extraction ends, start timing. When the water is extracted this time, obtain the timing duration. The timing duration is reset to 0 at the end of each water extraction. In this embodiment, the interval duration is the timing duration.

[0154] The above-mentioned technical scheme executes the step of determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to the second preset threshold value when the interval duration is greater than or equal to the duration threshold. This can avoid the influence of the first target water temperature of the last water extraction on the fourth actual water temperature measured during the current water extraction process, thereby helping to improve the accuracy of the fourth actual water temperature, and further provide a more accurate basis for determining the subsequent first target water outlet flow rate and the second target water outlet flow rate, which is beneficial to improving the user experience.

[0155] Exemplarily, based on the fourth actual water temperature and the first target water temperature, determining the third target water temperature includes: calculating the temperature difference between the fourth actual water temperature and the first target water temperature; when the fourth actual water temperature is greater than the first target water temperature, determining the difference between the first target water temperature and the temperature difference as the third target water temperature; when the fourth actual water temperature is less than the first target water temperature, determining the sum of the first target water temperature and the temperature difference as the third target water temperature.

[0156] It is understandable that there may be heat loss during the flow of water in the pipeline. At this time, the actual water temperature of the water flowing out of the water outlet pipeline may not reach the first target water temperature. In the technical solution of this example, the temperature difference between the fourth actual water temperature and the first target water temperature is calculated, and the third target water temperature is determined based on the temperature difference. When the fourth actual water temperature is greater than the first target water temperature, the difference between the first target water temperature and the temperature difference is determined to be the third target water temperature; when the fourth actual water temperature is less than the first target water temperature, the sum of the first target water temperature and the temperature difference is determined to be the third target water temperature. Through this determination method, the temperature difference caused by the heat loss of water in the pipeline can be compensated to the third target water temperature, so that the target water outlet flow rate subsequently re-determined based on the third target water temperature can try to ensure that the actual water temperature of the water flowing out of the water outlet pipeline reaches the first target water temperature, thereby meeting the user's usage needs.

[0157] In a specific embodiment, the first target water temperature is 85° C. If the fourth actual water temperature is 78° C., it can be considered that the current heat loss is 7° C. At this time, the third target water temperature can be determined to be 92° C.

[0158] In the above technical solution, by using the difference between the fourth actual water temperature and the first target water temperature to determine the third target water temperature, the actual outlet water temperature of the water outlet pipeline can be ensured to meet user needs as much as possible, thereby helping to improve user experience.

[0159] Optionally, during the same water intake, the first target water outflow flow rate and / or the second target water outflow flow rate can be adjusted by the first flow regulation method and / or the second flow regulation method. In one embodiment, during the same water intake, the first target water outflow flow rate and / or the second target water outflow flow rate can be adjusted by the first flow regulation method. In another embodiment, during the same water intake, the first target water outflow flow rate and / or the second target water outflow flow rate can be adjusted by the second flow regulation method. In yet another embodiment, during the same water intake, the first target water outflow flow rate and / or the second target water outflow flow rate can be adjusted by the first flow regulation method and the second flow regulation method in any order. It is more desirable that the first flow regulation method is used to adjust the first target water outflow flow rate and / or the second target water outflow flow rate during this water intake, and the second flow regulation method is mainly used to adjust the water outflow flow rates of the first water storage device and the second water storage device respectively during the subsequent water intake. In this way, conflicts between the two flow regulation methods can be avoided.

[0160] Figure 6 FIG. 2 is a schematic flow chart showing a method for controlling water intake temperature according to another specific embodiment of the present application. Figure 6 As shown, the control method includes step S610, step S620, step S630, step S640, step S650, step S660 and step S670.

[0161] In step S610, a first target water temperature β set by a user is obtained. In this embodiment, the first target water temperature is 85°C.

[0162] In step S620, the first actual water temperature T1 and the second actual water temperature T2 are acquired.

[0163] In step S630, determine whether T1 is greater than the second target water temperature. In this embodiment, the second target water temperature is equal to the first target water temperature, that is, equal to 85°C. If T1>85°C, execute step S640; otherwise, end water extraction and prompt that preheating is required. That is, in this step, when T1≤85°C, the first prompt information can be output to prompt the user that the hot water in the first water storage device needs to be heated. The implementation method of step S630 can be understood with reference to the relevant embodiments above and will not be repeated here.

[0164] In step S640, based on the first target water temperature β, the first actual water temperature T1, the second actual water temperature T2 and the preset flow rate Q M , determine the first target water outflow rate Q1 of the first water storage device and the second target water outflow rate Q2 of the second water storage device. In this step, optionally, the first target water outflow rate Q1 and the second target water outflow rate Q2 can be determined by the following formula:

[0165] Q1+Q2=Q M ;

[0166] Q1*T1+Q2*T2=(Q1+Q2)*β.

[0167] In step S650, the driving voltages V1 and V2 corresponding to the first water pump and the second water pump are calculated. In this step, optionally, the driving voltages V1 and V2 corresponding to the first water pump and the second water pump can be calculated according to the first target water flow rate Q1 and the second target water flow rate Q2, and based on the characteristic curves corresponding to the first water pump and the second water pump. After the driving voltages V1 and V2 are obtained, the first water pump and the second water pump can be controlled according to V1 and V2, respectively, so that the first water storage device and the second water storage device supply water to the water outlet pipeline according to the first target water flow rate and the second target water flow rate, respectively.

[0168] When the first water storage device and the second water storage device are controlled to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively, the third actual water temperature T c , and at T c When the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold, step S670 is performed to make the difference between the third actual water temperature and the first target water temperature less than or equal to the first preset threshold. Optionally, the fourth actual water temperature T b , and at T b When the difference between the target water temperature and the first target water temperature is greater than the second preset threshold, step S660 is executed.

[0169] In step S660, first, it is determined whether the interval between the current water extraction and the last water extraction is greater than or equal to the time threshold of 10s. When the interval is ≥ 10s, it is determined that the fourth actual water temperature T b Whether the difference between the first target water temperature and the first target water temperature is less than or equal to the second preset threshold. Figure 6 In the embodiment shown, the second preset threshold is 0, that is, the fourth actual water temperature T is directly determined. b Is it equal to the first target water temperature of 85°C? b =85℃, then maintain V1 and V2. If T b ≠85℃, then judge the fourth actual water temperature T b Is it greater than the first target water temperature of 85°C? b When >85℃, the new β=β-|T b -85|. When T b When <85℃, the new β=β+|T b-85|. After obtaining the new β, Q1 and Q2 can be calculated based on the new β as the new first target temperature when taking 85°C water next time. Optionally, after obtaining the new β, Q1 and Q2 can also be recalculated based on the new β during this water taking, and the first water outlet device and the second water storage device can be controlled to supply water again according to Q1 and Q2.

[0170] In step S670, first, the third actual water temperature T is determined. c Whether the difference between the first target water temperature and the first target water temperature is less than or equal to the first preset threshold. Figure 6 In the embodiment shown, the first preset threshold is 0, that is, the third actual water temperature T is directly determined. c Is it equal to the first target water temperature of 85°C? c =85℃, then maintain V1 and V2. If T c ≠85℃, then the third actual water temperature T c Is it greater than the first target water temperature of 85°C? c >85°C, the driving voltage V1 of the first water pump can be reduced. c When the temperature is less than 85°C, the driving voltage V1 of the first water pump can be increased. Repeat this adjustment process until T c =85℃.

[0171] According to another aspect of the present application, a device for controlling water intake temperature is provided. Figure 7 FIG. 1 is a schematic block diagram of a control device according to an embodiment of the present application. Figure 7 As shown, the control device 700 may include a processor 710 and a memory 720, wherein the memory 720 stores computer program instructions, and the computer program instructions are used to execute the above-mentioned water intake temperature control method when the processor 710 is running.

[0172] According to another aspect of the present application, a water intake system is provided. Figure 1 Take the water intake system as an example to explain the structure of the water intake system. Figure 1 As shown, the water intake system includes a first water storage device 110 for providing hot water, a second water storage device 120 for providing normal temperature water, a water outlet pipeline 130 and the above-mentioned water intake temperature control device 700 ( Figure 1 The first water storage device 110 and the second water storage device 120 are both connected to the water outlet pipeline 130 , and the hot water provided by the first water storage device 110 and the normal temperature water provided by the second water storage device 120 are mixed in the water outlet pipeline and then discharged through the water outlet pipeline 130 .

[0173] The structure and working principle of the water intake system can be understood in conjunction with the above description of the water intake temperature control method, which will not be repeated here. The above technical solution can adjust the outlet water temperature more accurately by using the control device, which is conducive to meeting the user's usage needs.

[0174] Exemplarily, a mixing chamber 131 is provided on the water outlet pipe 130 . The hot water provided by the first water storage device 110 and the normal temperature water provided by the second water storage device 120 are mixed in the mixing chamber 131 and then discharged through the water outlet of the water outlet pipe 130 .

[0175] Optionally, the water intake system may further include a first thermometer 111 for measuring the first actual water temperature, a second thermometer 121 for measuring the second actual water temperature, and a third thermometer 132 for measuring the third actual water temperature. Figure 1 The embodiment shown in the figure illustrates the installation position of each thermometer. Figure 1 As shown, the sensing end of the first thermometer 111 is arranged in the first water storage device 110 , the sensing end of the second thermometer 121 is arranged in the second water storage device 120 , and the sensing end of the third thermometer 132 is arranged in the water mixing chamber 131 .

[0176] The above technical solution helps to ensure that hot water and normal temperature water are fully mixed by providing a water mixing chamber, thereby helping to make the temperature of water flowing out of the water outlet pipe uniform, thereby helping to improve the user experience.

[0177] Exemplarily, the water intake system also includes a first water pump 150. The first water storage device 110 is a closed water storage device. The water inlet of the first water storage device 110 is arranged at the lower part of the side wall or the bottom of the first water storage device 110. The water outlet of the first water storage device 110 is arranged at the top of the first water storage device 110. The water inlet is connected to the water inlet pipeline 140. The first water pump 150 is arranged on the water inlet pipeline 140. The first water pump 150 is used to pump water into the first water storage device 110, so that the hot water in the first water storage device 110 is transported to the water outlet pipeline 130 via the water outlet.

[0178] exist Figure 1 In the illustrated embodiment, the water inlet of the water inlet pipeline 140 is connected to the second water storage device 120. When the first water storage device 110 supplies water to the water outlet pipeline 130, the first water pump 150 can be used to pump the normal temperature water in the second water storage device 120 to the first water storage device 110. The hot water in the first water storage device 110 is pushed out to the water outlet pipeline 130 through the water outlet at the top. It can be understood that Figure 1 The arrangement of the first water pump 150 is only an example and is not intended to limit the water intake system of the present application. The first water pump 150 may also be arranged in other ways, for example, the first water pump 150 may be arranged on the delivery pipeline between the first water storage device 110 and the water outlet pipeline 130 .

[0179] exist Figure 1 In the illustrated embodiment, the second water pump 160 is disposed on the delivery pipeline between the second water storage device 120 and the water outlet pipeline 130. When the second water storage device 120 supplies water to the water outlet pipeline 130, the second water pump 160 can be used to pump the normal temperature water in the second water storage device 120 into the water outlet pipeline 130.

[0180] Optionally, the top of the first water storage device 110 is connected to an exhaust pipe 112, and an exhaust valve 113 is provided on the exhaust pipe 112. When the first water storage device 110 is heated, the exhaust valve 113 can be opened. When the first water storage device 110 supplies water to the water outlet pipeline 130, the exhaust valve 113 can be closed.

[0181] In the above technical solution, the first water storage device adopts a closed water storage device, and the hot water in the first water storage device is pushed out into the water outlet pipe by the normal temperature water pumped into the first water storage device by the first water pump. In this way, it can be ensured that the first water storage device is always full of water, so there is no need to set a water level sensing device in the first water storage device. This solution helps to reduce the production cost of the water intake system. In addition, the water inlet of the first water storage device in this solution is set at the lower part of the side wall or the bottom of the first water storage device, which can prevent the normal temperature water added to the first water storage device from flowing out directly from the water outlet of the first water storage device, thereby helping to ensure the temperature reliability of the hot water provided by the first water storage device.

[0182] For example, the water intake system may include a first flow meter 170 and a second flow meter 180. Figure 1 The embodiment shown in the figure illustrates the installation position of each flow meter. Figure 1 As shown, the first flow meter 170 is installed on the water inlet pipeline 140, and the second flow meter 180 is installed on the delivery pipeline between the second water storage device 120 and the water outlet pipeline 130. It can be understood that Figure 1 The arrangement of the first flow meter 170 and the second flow meter 180 is only an example, and the first flow meter 170 and the second flow meter 180 may also be arranged in other ways. For example, the first flow meter 170 may be installed on the delivery pipeline between the first water storage device 110 and the water outlet pipeline 130. The first flow meter 170 and the second flow meter 180 are used to collect the actual water outlet flow of the first water storage device 110 and the second water storage device, respectively, which can be understood in combination with the above description and will not be repeated here.

[0183] According to another aspect of the present application, a computer-readable storage medium is also provided, on which program instructions are stored, and the program instructions are used to execute the above-mentioned water intake temperature control method when running. The computer-readable storage medium may include, for example, a storage component of a tablet computer, a hard disk of a personal computer, an erasable programmable read-only memory (EPROM), a portable read-only memory (CD-ROM), a USB memory, or any combination of the above storage media. The computer-readable storage medium may be any combination of one or more computer-readable storage media.

[0184] A person skilled in the art can understand the specific implementation scheme of the above-mentioned control device, water intake system and computer-readable storage medium by reading the above-mentioned description of the control method of water intake temperature, and for the sake of brevity, it will not be repeated here.

[0185] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0186] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0187] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0188] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0189] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features clearly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0190] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0191] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0192] The various component embodiments of the present application can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all functions of some modules in the control device for the water intake temperature and the water intake system according to the embodiment of the present application. The present application can also be implemented as a device program (e.g., a computer program and a computer program product) for executing part or all of the methods described herein. Such a program for implementing the present application can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0193] It should be noted that the above embodiments illustrate the present application rather than limit the present application, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present application may be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0194] The above is only a specific implementation or description of a specific implementation of the present application, and the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for controlling water intake temperature, characterized in that: Used in a water intake system; the water intake system comprises a first water storage device for providing hot water, a second water storage device for providing normal temperature water, and a water outlet pipeline; the first water storage device and the second water storage device are both connected to the water outlet pipeline, and the hot water provided by the first water storage device and the normal temperature water provided by the second water storage device are mixed in the water outlet pipeline and discharged through the water outlet pipeline; The method comprises: When dispensing water, perform the following control operations: Obtaining a first target water temperature; Acquire a first actual water temperature in the first water storage device and a second actual water temperature in the second water storage device; Determine a first target water outflow rate of the first water storage device and a second target water outflow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and a preset flow rate; the preset flow rate is the sum of the first target water outflow rate and the second target water outflow rate; Controlling the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively; Acquiring a third actual water temperature of the water outlet pipeline; Based on the third actual water temperature and the first target water temperature, the first target water outlet flow rate and / or the second target water outlet flow rate are controlled so that the difference between the third actual water temperature and the first target water temperature is less than or equal to a first preset threshold.

2. The control method according to claim 1, characterized in that: The controlling the first target water outlet flow rate and / or the second target water outlet flow rate based on the third actual water temperature and the first target water temperature includes: determining whether a difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold; When the difference between the third actual water temperature and the first target water temperature is greater than the first preset threshold, the following steps are repeatedly performed until the difference between the third actual water temperature and the first target water temperature is less than or equal to the first preset threshold: When the third actual water temperature is greater than the first target water temperature, reducing the first target water outlet flow rate and / or increasing the second target water outlet flow rate; When the third actual water temperature is lower than the first target water temperature, the first target water outlet flow rate is increased and / or the second target water outlet flow rate is decreased.

3. The control method according to claim 1 or 2, characterized in that: The control operation also includes: Determine whether a difference between a fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to a second preset threshold, the fourth actual water temperature being the third actual water temperature or being determined based on the third actual water temperature within a preset time period; When the difference between the fourth actual water temperature and the first target water temperature is greater than the second preset threshold, determining a third target water temperature based on the fourth actual water temperature and the first target water temperature; in, For this water intake, the control operation also includes: Taking the third target water temperature as the new first target water temperature, returning to the step of determining a first target water outlet flow rate of the first water storage device and a second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate; and / or, For any subsequent water extraction, the third target water temperature is used as the new first target water temperature, and the steps of determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate are executed.

4. The control method according to claim 3, characterized in that: The control operation also includes: Get the interval between the last water extraction and the current water extraction; Determine whether the interval duration is greater than or equal to a duration threshold; The step of determining whether the difference between the fourth actual water temperature of the water outlet pipeline and the first target water temperature is less than or equal to a second preset threshold is performed when the interval time is greater than or equal to the time threshold.

5. The control method according to claim 3, characterized in that: The determining a third target water temperature based on the fourth actual water temperature and the first target water temperature includes: calculating a temperature difference between the fourth actual water temperature and the first target water temperature; When the fourth actual water temperature is greater than the first target water temperature, determining the difference between the first target water temperature and the temperature difference as the third target water temperature; When the fourth actual water temperature is lower than the first target water temperature, the sum of the first target water temperature and the temperature difference is determined to be the third target water temperature.

6. The control method according to claim 1 or 2, characterized in that: Before determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate, the control operation further includes: Determining whether the first actual water temperature is greater than a second target water temperature, wherein the second target water temperature is greater than or equal to the first target water temperature, or the second target water temperature is less than the first target water temperature and the difference between the first target water temperature and the second target water temperature is less than or equal to the first preset threshold; When the first actual water temperature is less than or equal to the second target water temperature, performing one or more of the following operations: outputting a first prompt message; controlling the first water storage device and the second water storage device to stop supplying water; controlling the first water storage device to heat; Among them, the first prompt information is used to prompt the user that the hot water in the first water storage device needs to be heated; the step of determining the first target water outlet flow rate of the first water storage device and the second target water outlet flow rate of the second water storage device based on the first target water temperature, the first actual water temperature, the second actual water temperature and the preset flow rate is performed when the first actual water temperature is greater than the second target water temperature.

7. The control method according to claim 6, characterized in that: After controlling the first water storage device to heat when the first actual water temperature is less than or equal to the second target water temperature, the control operation further includes: After the first water storage device is heated, one or more of the following operations are performed: outputting a second prompt message; controlling the first water storage device and the second water storage device to continue supplying water; The second prompt information is used to prompt the user that the heating of the first water storage device is completed.

8. The control method according to claim 1 or 2, characterized in that: The control operation also includes: Obtain target water output; The total water output of the water outlet pipeline during the current water intake process; When the total water output reaches the target water output, the first water storage device and the second water storage device are controlled to stop supplying water.

9. The control method according to claim 1 or 2, characterized in that: The water outlet system further includes a first water pump and a second water pump; the first water pump is used to pump the water in the first water storage device to the water outlet pipeline; the second water pump is used to pump the water in the second water storage device to the water outlet pipeline; The controlling the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively comprises: Obtaining a first characteristic curve and a second characteristic curve; the first characteristic curve is used to represent the relationship between the driving voltage of the first water pump and the water flow rate of the first water storage device; the second characteristic curve is used to represent the relationship between the driving voltage of the second water pump and the water flow rate of the second water storage device; determining a driving voltage of the first water pump based on the first characteristic curve and the first target water flow rate; determining a driving voltage of the second water pump based on the second characteristic curve and the second target water flow rate; Based on the driving voltages corresponding to the first water pump and the second water pump respectively, the first water pump and the second water pump are controlled to operate so as to control the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively.

10. The control method according to claim 9, characterized in that: The controlling the first water storage device and the second water storage device to supply water to the water outlet pipeline according to the first target water outlet flow rate and the second target water outlet flow rate respectively comprises: Taking either or both of the first water storage device and the second water storage device as target water storage devices, and obtaining an actual water outflow rate of the target water storage device; Determining whether the difference between the actual water outflow rate and the target water outflow rate is less than or equal to a third preset threshold; When the difference between the actual water outflow flow rate and the target water outflow flow rate is greater than a third preset threshold, the following steps are repeatedly performed until the difference between the actual water outflow flow rate and the target water outflow flow rate is less than or equal to the third preset threshold: If the actual water flow rate is less than the target water flow rate, increasing the driving voltage of the target water pump; the target water pump is a water pump corresponding to the target water storage device; If the actual water flow rate is greater than the target water flow rate, reducing the driving voltage of the target water pump; When the difference between the actual water outlet flow rate and the target water outlet flow rate is less than or equal to the third preset threshold value, recording the driving voltage of the target water pump; At least based on the recorded driving voltage and the target water outlet flow rate, a target characteristic curve is adjusted; the target characteristic curve is used to represent the relationship between the driving voltage of the target water pump and the water outlet flow rate of the target water storage device.

11. A water intake temperature control device, characterized in that: include: A processor and a memory, wherein the memory stores computer program instructions, and the computer program instructions are used by the processor to execute the water intake temperature control method according to any one of claims 1 to 10 when the processor is running.

12. A water intake system, characterized in that: include: A first water storage device for providing hot water, a second water storage device for providing water at room temperature, a water outlet pipeline and a water intake temperature control device as described in claim 11; the first water storage device and the second water storage device are both connected to the water outlet pipeline, and the hot water provided by the first water storage device and the room temperature water provided by the second water storage device are mixed in the water outlet pipeline and discharged through the water outlet pipeline.

13. The water intake system according to claim 12, characterized in that: The water outlet pipe is provided with a water mixing chamber; the hot water provided by the first water storage device and the normal temperature water provided by the second water storage device are mixed in the water mixing chamber and then discharged through the water outlet of the water outlet pipe; and / or, The water intake system also includes a first water pump; the first water storage device is a closed water storage device; the water inlet of the first water storage device is arranged at the lower part of the side wall or the bottom of the first water storage device; the water outlet of the first water storage device is arranged at the top of the first water storage device; the water inlet is connected to a water inlet pipeline; the first water pump is arranged in the water inlet pipeline; the first water pump is used to pump water into the first water storage device, so that the hot water in the first water storage device is transported to the water outlet pipeline via the water outlet.

14. A computer-readable storage medium having program instructions stored thereon, wherein the program instructions are used to execute the method for controlling water intake temperature according to any one of claims 1 to 10 when running.

Images