Drinking water device and control method thereof

Abstract

This disclosure provides a drinking water device and its control method. The drinking water device includes a first water tank, a second water tank, a first booster pump, and a second booster pump. The second water tank is equipped with a heating device for heating the water in the second water tank to a certain temperature. The control method of the drinking water device includes: responding to drinking water demand, controlling the actual flow ratio between the first booster pump and the second booster pump based on the temperature difference between a set temperature and the actual outlet water temperature, so that the actual outlet water temperature reaches the set temperature; finding a calibrated flow ratio corresponding to the actual flow ratio; adjusting the current voltage of the first booster pump according to a first calibrated voltage, and adjusting the current voltage of the second booster pump according to a second calibrated voltage. This allows control of the actual flow ratio of the two booster pumps, enabling the outlet water temperature after mixing from the two water tanks to quickly reach the set temperature, improving the user experience.

Description

Technical Field

[0001] This disclosure relates to the technical field of drinking water equipment, and in particular to a drinking water equipment and its control method. Background Technology

[0002] A water purifier and heater combo, also known as a reverse osmosis (RO) water purifier and heater combo, is a new type of water purifier that integrates water purification and heating functions. It eliminates the need to draw purified water and then boil it, providing pure hot water instantly. This makes drinking hot water safer, healthier, and more convenient. It is a water purifier that combines an electric kettle, a water dispenser, and a water purifier. Users can set the output water temperature or keep-warm temperature according to their needs, so that they can drink water at the desired temperature in real time.

[0003] Currently, integrated water purifiers and heaters mainly offer two heating methods: instant heating and hot water tank heating. Instant heating offers a wider user experience and broader application range because the water temperature can be adjusted at any time. However, instant heating also has some drawbacks, primarily a relatively low hot water flow rate. For example, based on a typical household appliance with a power rating of 2200W, setting the hot water temperature to 95℃ results in a flow rate of only 430ml / min, leading to a longer waiting time – about 50 seconds to fill a 300ml cup. Hot water tank heating has the same power rating as instant heating, but the presence of a storage tank allows for pre-stored hot water, providing a rapid and large flow rate when needed. However, hot water tank heating also has its limitations: it can only dispense hot water at one temperature setting, not multiple temperature options, and the hot water output capacity is limited by the size of the storage tank. Summary of the Invention

[0004] The technical problem to be solved by this disclosure is to overcome the above-mentioned defects in the prior art and to provide a drinking water device and its control method, a computer-readable storage medium, and a computer program product.

[0005] This disclosure solves the above-mentioned technical problems through the following technical solution:

[0006] The first aspect of this disclosure provides a control method for a drinking water device, the drinking water device including a first water tank, a second water tank, a first booster pump, and a second booster pump, wherein the second water tank is equipped with a heating device for heating the water in the second water tank to a certain temperature; the first booster pump is located at the outlet end of the first water tank, the second booster pump is located at the outlet end of the second water tank, and the outlets of both the first booster pump and the second booster pump are connected to the outlet end;

[0007] The control method includes the following steps:

[0008] In response to drinking water demand, the actual flow rate ratio between the first booster pump and the second booster pump is controlled according to the temperature difference between the set temperature and the actual outlet water temperature, so that the actual outlet water temperature reaches the set temperature.

[0009] Find the calibration flow ratio that corresponds to the actual flow ratio from at least two calibration flow ratios corresponding to different outlet water temperatures;

[0010] The voltage of the first booster pump is adjusted according to a first calibration voltage, and the voltage of the second booster pump is adjusted according to a second calibration voltage; wherein, the first calibration voltage is the voltage of the first booster pump corresponding to the calibration flow rate ratio, and the second calibration voltage is the voltage of the second booster pump corresponding to the calibration flow rate ratio.

[0011] Optionally, the step of finding the calibration flow ratio corresponding to the actual flow ratio from at least two calibration flow ratios corresponding to different outlet water temperatures specifically includes: finding the calibration flow ratio closest to the actual flow ratio from at least two calibration flow ratios corresponding to different outlet water temperatures.

[0012] Optionally, the correspondence between the calibrated flow rate ratio and the voltages of the first booster pump and the second booster pump is determined according to the following steps:

[0013] Record the outlet water temperature of the first booster pump and the second booster pump under different voltages;

[0014] For different outlet water temperatures, the calibrated flow rate ratio is calculated based on the water temperature of the first water tank, the water temperature of the second water tank, and the outlet water temperature, respectively.

[0015] Based on the correspondence between the calibrated flow rate ratio and the outlet water temperature, and the correspondence between the outlet water temperature and the voltages of the first booster pump and the second booster pump, the correspondence between the calibrated flow rate ratio and the voltages of the first booster pump and the second booster pump is determined.

[0016] Optionally, the drinking water equipment further includes a return water pump, the inlet of which is connected to the outlet of the first booster pump and the second booster pump respectively;

[0017] The control method further includes: in response to the water outlet stopping, controlling the return water pump to operate so that the water in the outlet pipeline is discharged.

[0018] A second aspect of this disclosure provides a drinking water device, including a processor, a first water tank, a second water tank, a first booster pump, and a second booster pump. The second water tank is equipped with a heating device for heating the water in the second water tank to a certain temperature. The first booster pump is located at the outlet of the first water tank, and the second booster pump is also located at the outlet of the second water tank. The outlets of both the first and second booster pumps are connected to the outlet.

[0019] The processor is configured to adjust the voltage of the first booster pump and the second booster pump based on the temperature difference between the set temperature and the actual outlet water temperature.

[0020] Optionally, the drinking water device further includes a first temperature sensor, a second temperature sensor, and a third temperature sensor that are respectively communicatively connected to the processor. The first temperature sensor is used to measure the water temperature of the first water tank, the second temperature sensor is used to measure the water temperature of the second water tank, and the third temperature sensor is used to measure the outlet water temperature.

[0021] Optionally, the drinking water equipment further includes a purification device, which is disposed between the water inlet and the first water tank, and between the water inlet and the second water tank.

[0022] A third aspect of this disclosure provides a drinking water device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the control method described in the first aspect.

[0023] A fourth aspect of this disclosure provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of the control method described in the first aspect.

[0024] The fifth aspect of this disclosure provides a computer program product including a computer program that, when executed by a processor, implements the steps of the control method described in the first aspect.

[0025] Based on common knowledge in the field, the above optional conditions can be combined arbitrarily to obtain the preferred embodiments of this disclosure.

[0026] The positive improvement of this disclosure is that, based on the correspondence between the voltage of the first booster pump and the second booster pump and the rated flow ratio, the voltage of the first booster pump and the second booster pump can be adjusted with reference to the rated flow ratio. This allows the actual flow ratio of the two booster pumps to be controlled, thereby enabling the outlet water temperature after mixing in the first water tank and the second water tank to quickly reach the set temperature, thus improving the user's experience in using the drinking water equipment. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the structure of an integrated air purifier and heat pump provided in an embodiment of this disclosure.

[0028] Figure 2 A flowchart of a control method for a drinking water device provided in Embodiment 1 of this disclosure.

[0029] Figure 3 This is a partial flowchart of a control method for a drinking water device provided in Embodiment 1 of this disclosure.

[0030] Figure 4 This is a schematic diagram of the structure of a drinking water device provided in Embodiment 3 of this disclosure. Detailed Implementation

[0031] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] The drinking water device provided in this embodiment includes a first water tank, a second water tank, a first booster pump, and a second booster pump. The second water tank is equipped with a heating device for heating the water in the second water tank to a certain temperature. The first booster pump and the second booster pump are both located at the outlet of the first water tank, and their outlets are connected to the outlet. In specific implementation, the heating device in the second water tank heats the water. When the water temperature in the second water tank reaches a certain temperature, the heating device stops working. This certain temperature can be set according to actual needs, for example, it can be set to 95℃. Due to heat diffusion in the heating tank, the water in the second water tank will gradually and slowly cool down after heating stops. Therefore, a temperature replenishment point needs to be set, for example, 93℃. Once the water temperature in the second water tank drops below the temperature replenishment point, the heating device restarts until the water temperature in the second water tank reaches the set temperature.

[0034] The drinking water device provided in this embodiment includes two water tanks and two corresponding booster pumps. The booster pumps increase the water pressure to ensure smooth water extraction from the tanks. Specifically, the booster pumps use a motor to drive an impeller to rotate, generating centrifugal force that draws water from the tanks into the pump body and applies additional pressure, thus propelling the water through pipes to the downstream end. Therefore, the flow rate of water reaching the downstream end can be adjusted by regulating the voltage of the motor in the booster pump. It should be noted that adjusting the voltage of the booster pump in this embodiment specifically refers to adjusting the voltage of the motor in the booster pump.

[0035] In the control method of the drinking water equipment provided in this disclosure, based on the correspondence between the voltage of the first booster pump and the second booster pump and the rated flow rate ratio, the voltage of the first booster pump and the second booster pump is adjusted with reference to the rated flow rate ratio. This allows control of the actual flow rate ratio of the two booster pumps, enabling the water temperature after mixing in the first and second water tanks to quickly reach the set temperature, thus improving the user experience of the drinking water equipment. Compared to instant heating drinking water equipment, users can quickly obtain a large flow rate of water at a set temperature using the drinking water equipment provided in this disclosure; compared to hot water tank heating drinking water equipment, users can obtain water at different set temperatures using the drinking water equipment provided in this disclosure.

[0036] The drinking water device in this embodiment can be a drinking water device with a heating function. In addition to the heating function, it can also have other functions, such as a water purification function. In practical applications, the drinking water device can be an integrated water purifier and heater.

[0037] Figure 1 This is a schematic diagram illustrating an integrated air purifier and heater. Figure 1In the example shown, the combined air purifier and heater includes a processor ( Figure 1 The system includes an inlet valve 10 (not shown), a wastewater valve 11, a drain valve 12, an outlet valve 13, a hot water valve 14, and a water tank valve 15. It also includes a water pump 20, a first booster pump 21, a second booster pump 22, and a return water pump 23. Furthermore, it includes a composite filter element 31, a membrane chromatography filter element 32, a first water tank 33, a second water tank 34, a heating device 35, and a mixing chamber 36. The composite filter element 31 includes a pre-filter and a post-filter. When the inlet valve 10 and water pump 20 are activated, water in the water path passes through the inlet and is filtered sequentially through the pre-filter, membrane chromatography filter element 32, and post-filter to form purified water. The processor can discharge the wastewater generated during purification by activating the wastewater valve 11, and replenish water to the first water tank 33 and the second water tank 34 by activating the hot water valve 14 and the water tank valve 15, respectively. The first water level sensor 331 installed in the first water tank 33 can detect whether the water level in the first water tank 33 is adequate, and the second water level sensor 341 installed in the second water tank 34 can detect whether the water level in the second water tank 34 is adequate. After water replenishment, the processor controls the heating device 35 installed in the second water tank 34 to heat the water in the second water tank 34. The water in the first water tank 33 is usually at room temperature. To prevent bacterial growth, a sterilizer 332, such as an ultraviolet lamp, can also be installed in the first water tank 33. In addition, to further prevent bacterial growth in the water in the first water tank, the processor can control the drain valve 12 to activate the drain valve, causing the water in the first water tank 33 to be filtered again through the membrane chromatography filter cartridge 32 and the post-filter cartridge, thus allowing it to be reused.

[0038] like Figure 1 As shown, the integrated water purifier and heater also includes a first temperature sensor 41, a second temperature sensor 42, and a third temperature sensor 43. The first temperature sensor 41 is used to measure the water temperature of the first water tank 33, the second temperature sensor 42 is used to measure the water temperature of the second water tank 34, and the third temperature sensor 43 is used to measure the outlet water temperature.

[0039] Water flowing from the first water tank 33 and the second water tank 34 is mixed in the mixing chamber 36 before reaching the outlet. The processor can adjust the voltage of the first booster pump 21 and the second booster pump 22 to make water of different temperatures flow out of the outlet. After the water flow stops, the processor can also control the return pump 23 to run, so that the water remaining in the outlet pipe is discharged. When the user needs room temperature water, the processor can control the first booster pump 21 to run and the second booster pump 22 to stop running, providing the user with water from the first water tank 33. After the water in the first water tank 33 is emptied, the processor can activate the outlet valve 13 to make a small flow of room temperature water flow directly from the outlet.

[0040] Example 1

[0041] Figure 2 This is a flowchart illustrating a control method for a drinking water device provided in this embodiment. The control method can be executed by a control device for the drinking water device, which can be implemented through software and / or hardware. The control device can be part or all of the drinking water device. The control method for the drinking water device provided in this embodiment will be described below using the drinking water device as the executing entity.

[0042] like Figure 2 As shown, the control method for the drinking water equipment provided in this embodiment may include the following steps S101 to S103:

[0043] Step S101: In response to drinking water demand, the actual flow rate ratio between the first booster pump and the second booster pump is controlled according to the temperature difference between the set temperature and the actual outlet water temperature, so that the actual outlet water temperature reaches the set temperature.

[0044] In practical applications, drinking water needs are usually triggered by the user. For example, a user can trigger a drinking water need through a button on the water dispenser, or through voice commands. The drinking water need includes information about a set temperature. In a specific example, the water dispenser includes four buttons corresponding to room temperature, 45℃, 75℃, and 100℃. A user can trigger a drinking water need with a set temperature of 45℃ by pressing the button corresponding to 45℃.

[0045] In practical implementation, the algorithm for controlling the actual flow ratio can be a PID algorithm or a fuzzy control algorithm, etc., and the specific algorithm is not limited. In the example of PID control of the actual flow ratio, the actual flow ratio P(t) at time t can be determined according to the following formula:

[0046] P(t)=Kp1×e(t)+Ki1×Σe(t)+Kd1×(e(t)-e(t-1));

[0047] Where e(t) is the temperature difference at time t, specifically, e(t) = Tset – Tout_real; Tset is the set temperature, Tout_real is the actual water temperature at the outlet of the water dispenser at time t, e(t-1) is the temperature difference at time t-1, and Kp1, Ki1 and Kd1 are the proportional coefficient, integral coefficient and derivative coefficient of the PID control, respectively.

[0048] Step S102: Find the calibration flow ratio that corresponds to the actual flow ratio from at least two calibration flow ratios corresponding to different outlet water temperatures.

[0049] The calibrated flow rate ratio is predetermined. Specifically, a corresponding calibrated flow rate ratio is determined for different outlet water temperatures of the drinking water device. In the specific implementation of step S102, to improve the accuracy of the outlet water temperature, a calibrated flow rate ratio that matches the actual flow rate ratio can be searched from among the predetermined calibrated flow rate ratios. If no calibrated flow rate ratio matches the actual flow rate ratio, the calibrated flow rate ratio closest to the actual flow rate ratio can be searched. If there are two calibrated flow rate ratios that match the actual flow rate ratio, either one can be selected.

[0050] In a specific example, the predetermined calibration flow rates corresponding to different outlet water temperatures include 1.135, 1.45, 1.166, 1.172, 1.191, 1.213, 1.244, 1.258, ...; the actual flow rate rate determined at time t is 1.233. Then, the calibration flow rate rate closest to 1.233 among the above calibration flow rate rates is 1.244.

[0051] Step S103: Adjust the current voltage of the first booster pump according to the first calibration voltage, and adjust the current voltage of the second booster pump according to the second calibration voltage. Wherein, the first calibration voltage is the voltage of the first booster pump corresponding to the calibration flow rate ratio, and the second calibration voltage is the voltage of the second booster pump corresponding to the calibration flow rate ratio.

[0052] After determining the calibrated flow rate ratio corresponding to the actual flow rate ratio, the voltage of the first booster pump is adjusted according to the voltage of the first booster pump corresponding to the calibrated flow rate ratio, and the voltage of the second booster pump is adjusted according to the voltage of the second booster pump corresponding to the calibrated flow rate ratio. After adjusting the current voltages of the first and second booster pumps, the amount of water flowing out of the first and second water tanks will also change accordingly. After mixing, the water reaches the outlet, and the actual outlet water temperature will also change accordingly. Based on the temperature difference between the set temperature and the actual outlet water temperature and the corresponding control algorithm, a new actual flow rate ratio can be obtained. Then, a new calibrated flow rate ratio corresponding to the new actual flow rate ratio is found from multiple calibrated flow rate ratios. Finally, the current voltages of the two booster pumps are adjusted according to the voltages of the two booster pumps corresponding to the new calibrated flow rate ratio. This cycle is repeated until the actual outlet water temperature of the drinking water equipment reaches the set temperature.

[0053] In one alternative implementation, such as Figure 3 As shown, the correspondence between the calibrated flow rate ratio and the voltages of the first booster pump and the second booster pump is determined according to steps 201-203:

[0054] Step 201: Record the outlet water temperature of the first booster pump and the second booster pump under different voltages.

[0055] In practice, the voltages of the first and second booster pumps, along with the corresponding outlet water temperatures, are recorded. In one specific example, the voltage of the second booster pump is set to its maximum. Then, starting from 0V, the voltage of the first booster pump is gradually increased until it reaches its maximum. Each time the voltage of the first booster pump is adjusted, the corresponding outlet water temperature is recorded. This yields the outlet water temperatures of the second booster pump at its maximum voltage and the first booster pump at different voltages. Then, the voltage of the second booster pump is gradually decreased until it reaches 0V. Each time the voltage of the second booster pump is adjusted, the corresponding outlet water temperature is recorded. This yields the outlet water temperatures of the first booster pump at its maximum voltage and the second booster pump at different voltages. Combining these two scenarios, the outlet water temperatures of the first and second booster pumps at different voltages can be obtained.

[0056] It should be noted that the voltage of the first booster pump can be set according to its maximum voltage U1 each time, for example, by adjusting it by 1 / 10 of U1 each time. The voltage of the second booster pump can be set according to its maximum voltage U2 each time, for example, by adjusting it by 1 / 10 of U2 each time. In practical applications, the voltage adjustment can also be fixed each time, for example, increasing it by 2V or decreasing it by 2V each time.

[0057] Step 202: For different outlet water temperatures, calculate the calibrated flow rate ratio based on the water temperature of the first water tank, the water temperature of the second water tank, and the outlet water temperature.

[0058] In practical implementation, the calibration flow rate Kflow can be calculated using the following formula:

[0059] Kflow=(Ttop-Tout) / (Tout-Tlow);

[0060] Where Tout is the outlet water temperature, Tlow is the water temperature of the first water tank, and Ttop is the water temperature of the second water tank. In a specific example, the water temperature of the first water tank Tlow is 30℃, the water temperature of the second water tank Ttop is 95℃, and the outlet water temperature Tout is 60℃. The corresponding calibrated flow rate ratio Kflow = (95-60) / (60-30) = 1.167.

[0061] Step 203: Based on the correspondence between the calibrated flow rate ratio and the outlet water temperature, and the correspondence between the outlet water temperature and the voltages of the first booster pump and the second booster pump, determine the correspondence between the calibrated flow rate ratio and the voltages of the first booster pump and the second booster pump.

[0062] In practice, there is a corresponding relationship between the outlet water temperature and the rated flow rate ratio, and there is also a corresponding relationship between the outlet water temperature and the voltage of the two booster pumps. Based on these two relationships, the corresponding relationship between the rated flow rate ratio and the two booster pumps can be derived.

[0063] In one optional embodiment, the drinking water equipment further includes a return water pump, the inlet of which is connected to the outlets of the first booster pump and the second booster pump, respectively. In this embodiment, the control method further includes: in response to the cessation of water flow from the outlet, controlling the return water pump to operate, thereby discharging water from the outlet pipeline. In specific implementations, the return water pump can be controlled to run for a period of time T, after which the return water pump can be stopped. The time T can be set according to the actual conditions of the outlet pipeline.

[0064] In this embodiment, after each water outlet stops flowing, the residual water in the outlet pipe is discharged by controlling the operation of the return water pump. This not only avoids the problem of inaccurate water temperature due to residual water, but also avoids the situation of users being scalded by high-temperature residual water.

[0065] Example 2

[0066] This embodiment provides a drinking water device, including a processor, a first water tank, a second water tank, a first booster pump, and a second booster pump. The second water tank is equipped with a heating device for heating the water in the second water tank to a certain temperature. The first booster pump is located at the outlet of the first water tank, and the second booster pump is located at the outlet of the second water tank. The outlets of both the first and second booster pumps are connected to the outlet.

[0067] The processor is configured to adjust the voltages of the first booster pump and the second booster pump based on the temperature difference between the set temperature and the actual outlet water temperature. In a specific implementation, the processor is configured to execute the control method provided in Embodiment 1.

[0068] In one optional embodiment, the drinking water device further includes a first temperature sensor, a second temperature sensor, and a third temperature sensor, each communicatively connected to the processor. The first temperature sensor measures the water temperature in the first water tank, the second temperature sensor measures the water temperature in the second water tank, and the third temperature sensor measures the outlet water temperature. In specific implementations, the first temperature sensor can be placed between the first water tank and the first booster pump, or it can be placed inside the first water tank. The second temperature sensor can be placed inside the second water tank, and the third temperature sensor can be placed inside the outlet pipe. In this embodiment, the real-time temperatures measured by the first, second, and third temperature sensors are all sent to the processor, which can accurately control the outlet water temperature based on the water temperatures in the first and second water tanks and the outlet water temperature.

[0069] In one optional embodiment, the drinking water equipment further includes a purification device, which is disposed between the water inlet and the first water tank, and between the water inlet and the second water tank. The purification device is used to purify the water entering from the water inlet. In specific implementations, the purification device may include at least one filter element, such as a composite filter element, a membrane chromatography filter element, etc.

[0070] Example 3

[0071] Figure 4 This is a schematic diagram of a drinking water device provided in this embodiment. The drinking water device includes at least one processor and a memory communicatively connected to the at least one processor. The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the steps of the control method for the drinking water device in Embodiment 1. Figure 4 The drinking water device 3 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments disclosed herein.

[0072] The components of the drinking water device 3 may include, but are not limited to: at least one processor 4, at least one memory 5, and a bus 6 connecting different system components (including memory 5 and processor 4).

[0073] Bus 6 includes a data bus, an address bus, and a control bus.

[0074] The memory 5 may include volatile memory, such as random access memory (RAM) 51 and / or cache memory 52, and may further include read-only memory (ROM) 53.

[0075] The memory 5 may also include a program / utility 55 having a set (at least one) of program modules 54, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0076] The processor 4 executes various functional applications and data processing by running computer programs stored in the memory 5, such as the control method of the aforementioned drinking water equipment.

[0077] The water dispenser 3 can also communicate with one or more external devices 7 (e.g., keyboard, pointing device, etc.). This communication can be performed through the input / output (I / O) interface 8. Furthermore, the water dispenser 3 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via a network adapter 9. Figure 4 As shown, network adapter 9 communicates with other modules of the water dispenser 3 via bus 6. It should be understood that, although... Figure 4 As not shown, other hardware and / or software modules can be used in conjunction with the drinking water device 3, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0078] It should be noted that although several units / modules or sub-units / modules of the drinking water device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0079] Example 4

[0080] This embodiment provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the control method for the drinking water device in Embodiment 1.

[0081] The readable storage medium may be more specifically adopted, including but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device, or any suitable combination thereof.

[0082] In a possible implementation, this disclosure may also be implemented as a computer program product comprising a computer program that, when executed by a processor, implements the steps of the control method for the drinking water device in Embodiment 1.

[0083] The computer program for executing the present disclosure can be written in any combination of one or more programming languages, and the computer program can be executed entirely on the drinking water device, partially on the drinking water device, as a stand-alone software package, partially on the drinking water device and partially on a remote device, or entirely on a remote device.

[0084] While specific embodiments of this disclosure have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this disclosure, but all such changes and modifications fall within the scope of protection of this disclosure.

Claims

1. A control method for a drinking water device, characterized in that, The drinking water equipment includes a first water tank, a second water tank, a first booster pump, and a second booster pump. The second water tank is equipped with a heating device for heating the water in the second water tank to a certain temperature. The first booster pump is located at the outlet of the first water tank, and the second booster pump is located at the outlet of the second water tank. The outlets of both the first and second booster pumps are connected to the outlet. The control method includes the following steps: In response to drinking water demand, the actual flow rate ratio between the first booster pump and the second booster pump is controlled according to the temperature difference between the set temperature and the actual outlet water temperature, so that the actual outlet water temperature reaches the set temperature. Find the calibration flow ratio that corresponds to the actual flow ratio from at least two calibration flow ratios corresponding to different outlet water temperatures; The voltage of the first booster pump is adjusted according to a first calibration voltage, and the voltage of the second booster pump is adjusted according to a second calibration voltage; wherein, the first calibration voltage is the voltage of the first booster pump corresponding to the calibration flow rate ratio, and the second calibration voltage is the voltage of the second booster pump corresponding to the calibration flow rate ratio; The calibration flow rate ratio is calculated using the following formula: Kflow =(Ttop - Tout) / (Tout - Tlow); Where Kflow is the calibrated flow rate ratio, Tout is the outlet water temperature, Tlow is the water temperature of the first water tank, and Ttop is the water temperature of the second water tank.

2. The control method as described in claim 1, characterized in that, The step of finding the calibration flow ratio corresponding to the actual flow ratio from at least two calibration flow ratios corresponding to different outlet water temperatures specifically includes: finding the calibration flow ratio that is closest to the actual flow ratio from at least two calibration flow ratios corresponding to different outlet water temperatures.

3. The control method as described in claim 1, characterized in that, The following steps determine the correspondence between the calibrated flow rate ratio and the voltages of the first booster pump and the second booster pump, respectively: Record the outlet water temperature of the first booster pump and the second booster pump under different voltages; For different outlet water temperatures, the calibrated flow rate ratio is calculated based on the water temperature of the first water tank, the water temperature of the second water tank, and the outlet water temperature, respectively. Based on the correspondence between the calibrated flow rate ratio and the outlet water temperature, and the correspondence between the outlet water temperature and the voltages of the first booster pump and the second booster pump, the correspondence between the calibrated flow rate ratio and the voltages of the first booster pump and the second booster pump is determined.

4. The control method as described in claim 1, characterized in that, The drinking water equipment also includes a return water pump, the inlet of which is connected to the outlet of the first booster pump and the second booster pump respectively. The control method further includes: in response to the water outlet stopping, controlling the return water pump to operate so that the water in the outlet pipeline is discharged.

5. A drinking water device, characterized in that, The system includes a processor, a first water tank, a second water tank, a first booster pump, and a second booster pump. The second water tank is equipped with a heating device for heating the water in the second water tank to a certain temperature. The first booster pump is located at the outlet of the first water tank, and the second booster pump is located at the outlet of the second water tank. The outlets of both the first and second booster pumps are connected to the outlet. The processor is configured to perform the control method according to any one of claims 1-4.

6. The drinking water equipment as described in claim 5, characterized in that, The drinking water device also includes a first temperature sensor, a second temperature sensor, and a third temperature sensor that are respectively communicatively connected to the processor. The first temperature sensor is used to measure the water temperature of the first water tank, the second temperature sensor is used to measure the water temperature of the second water tank, and the third temperature sensor is used to measure the outlet water temperature.

7. The drinking water equipment as described in claim 5 or 6, characterized in that, The drinking water equipment also includes a purification device, which is located between the water inlet and the first water tank, and between the water inlet and the second water tank.

8. A drinking water device, comprising a memory, a processor, and a computer program stored in the memory, characterized in that, The processor executes the computer program to implement the steps of the control method according to any one of claims 1-4.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the control method according to any one of claims 1-4.

10. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the control method according to any one of claims 1-4.

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