Water purifier control method, device, equipment and storage medium

Abstract

The application discloses a control method, device and equipment of a water purifier and a storage medium. The method comprises the following steps: in response to a heating end instruction, historical heating control information of the water purifier is acquired; the historical heating control information comprises a historical heating duration and a historical target temperature; based on the historical heating duration and the historical target temperature, estimation is performed to obtain estimated scale information of the water purifier; in the case that the estimated structure information meets a preset descaling condition, current water outlet state information of the water purifier is acquired; based on the current water outlet state information, descaling control information of the water purifier is determined; and the water purifier is controlled according to the descaling control information. The heating temperature and the working duration of the heating pipe are accumulated by the machine, the estimated scale information is calculated, it is determined whether the descaling of the heating pipe is needed, the automatic descaling is performed according to the descaling control information, the efficiency and the intelligence of the descaling of the water purifier are improved, the labor cost is reduced, and the problem of how to improve the efficiency of the descaling of the water purifier is solved.

Description

Technical Field

[0001] This application relates to the field of water purification technology, and in particular to a control method, device, equipment and storage medium for a water purifier. Background Technology

[0002] Currently, instant hot water purifiers are widely used in daily life. An instant hot water purifier is a household appliance that integrates instant water purification and rapid heating functions, providing instant hot water with precise temperature control, suitable for users who use water at different times.

[0003] Hot water is provided to users by heating the water flowing through the heating pipes. With prolonged heating, the solubility of salts such as calcium carbonate and magnesium sulfate in the water decreases as the temperature rises, making it easier for crystals to adhere in the hot water area. In addition, the maximum outlet water temperature set by users is usually above 95℃, which can easily lead to scale formation in the heating pipes, posing a risk to water quality.

[0004] In existing technologies, after prolonged use, the heating element requires descaling maintenance, which is labor-intensive and complex, increasing maintenance costs. Therefore, there is an urgent need for a control method for automatic descaling water purifiers to solve these problems. Summary of the Invention

[0005] This application provides a control method, device, equipment, and storage medium for a water purifier. By accumulating the heating temperature and working time of the heating element, the machine calculates and estimates scale formation information. If the estimated scale formation information meets the scaling conditions, it is determined that the heating element needs to be descaled. After the user finishes using hot water, automatic descaling is performed based on the descaling control information. This improves the efficiency and intelligence of descaling the water purifier, ensures user experience, reduces labor costs, and solves the problem of how to improve the efficiency of descaling in water purifiers.

[0006] According to one aspect of this application, a control method for a water purifier is provided, the method comprising:

[0007] In response to a heating end command, the historical heating control information of the water purifier is acquired; the historical heating control information includes historical heating duration and historical target temperature.

[0008] Based on the historical heating time and the historical target temperature, the estimated scaling information of the water purifier is obtained;

[0009] If the estimated structural information meets the preset descaling conditions, the current water output status information of the water purifier is obtained;

[0010] Based on the current water output status information, descaling control information for the water purifier is determined;

[0011] The water purifier is controlled according to the descaling control information.

[0012] In one possible implementation, the water purifier includes a heating device.

[0013] The acquisition of the historical heating control information of the water purifier includes:

[0014] The heating device is activated in response to a heating start command; the heating start command includes a preset outlet water temperature.

[0015] The heating device is controlled to heat water so that the water outlet temperature of the water purifier is the preset outlet temperature.

[0016] In response to the heating end command, the heating device is turned off;

[0017] The historical heating duration is defined as the time from when the heating device is started to when the heating device is turned off.

[0018] The preset outlet water temperature is determined to be the historical target temperature;

[0019] The historical heating duration and the historical target temperature are determined as the historical heating control information.

[0020] In one possible implementation, the step of estimating the scale buildup information of the water purifier based on the historical heating time and the historical target temperature includes:

[0021] Obtain the target temperature scaling coefficient corresponding to the historical target temperature;

[0022] The estimated scaling information is obtained by multiplying the historical heating time, the historical target temperature, and the scaling coefficient at the target temperature.

[0023] In one possible implementation, the method further includes:

[0024] If the estimated structural information is greater than the preset descaling threshold, it is determined that the estimated structural information meets the preset descaling condition.

[0025] If the estimated structural information is less than or equal to the preset descaling threshold, it is determined that the estimated structural information does not meet the preset descaling conditions.

[0026] In one possible implementation, the method further includes:

[0027] If the estimated structural information does not meet the preset descaling conditions, the estimated scaling information is determined to be cumulative scaling information.

[0028] Upon receiving a heating start command again, the heating device is activated in response to the received heating start command, and the heating device is repeatedly controlled to heat until the estimated scaling information of the water purifier is obtained.

[0029] The sum of the accumulated scaling information and the estimated scaling information is used as the estimated scaling information again.

[0030] Until the estimated scaling information meets the preset descaling conditions.

[0031] In one possible implementation, the current water outlet status information includes a first water outlet status and a second water outlet status, wherein the first water outlet status indicates that the water purifier is in a water outlet off state, and the second water outlet status indicates that the water purifier is in a water outlet on state.

[0032] The step of determining descaling control information for the water purifier based on the current water outlet status information includes:

[0033] When the current water outlet status information is the first water outlet status, the descaling control information is determined to be the first descaling control information, and the first control information indicates that descaling is started;

[0034] When the current water outlet status information is the second water outlet status, the descaling control information is determined to be the second control information, which indicates that the water purifier is waiting to switch to the first water outlet status.

[0035] In one possible implementation, the water purifier includes a water pump and a drain pipe. The water pump is connected to the inlet of the heating device, and the outlet of the heating device is connected to the outlet of the water purifier and the drain pipe respectively through a three-way valve.

[0036] The step of controlling the water purifier according to the descaling control information includes:

[0037] When the descaling control information is the first control information, based on the three-way valve, the outlet of the heating device is connected to the drainage pipe, and the outlet of the heating device is not connected to the outlet of the water purifier.

[0038] The current number of repetitions is determined based on the preset outlet water temperature;

[0039] After a preset start time, the water pump is turned off.

[0040] After the water pump is turned off for a preset time, the process of turning the water pump on for a preset time and then turning it off is repeated.

[0041] Until the number of repetitions meets the current number of repetitions, based on the three-way valve, the outlet of the heating device is controlled to be disconnected from the drainage pipe, and the outlet of the heating device is connected to the outlet of the water purifier.

[0042] On the other hand, a control device for a water purifier is provided, the device comprising:

[0043] The heating control information acquisition module is used to acquire the historical heating control information of the water purifier in response to the heating end command; the historical heating control information includes historical heating duration and historical target temperature;

[0044] The estimation module is used to make an estimation based on the historical heating time and the historical target temperature to obtain the estimated scaling information of the water purifier;

[0045] The water outlet status information acquisition module is used to acquire the current water outlet status information of the water purifier when the estimated structural information meets the preset descaling conditions.

[0046] The descaling control information determination module is used to determine the descaling control information for the water purifier based on the current water outlet status information.

[0047] The control module is used to control the water purifier according to the descaling control information.

[0048] In one possible implementation, the water purifier includes a heating device, and the heating control information acquisition module is used for:

[0049] The heating device is activated in response to a heating start command; the heating start command includes a preset outlet water temperature.

[0050] The heating device is controlled to heat water so that the water outlet temperature of the water purifier is the preset outlet temperature.

[0051] In response to the heating end command, the heating device is turned off;

[0052] The historical heating duration is defined as the time from when the heating device is started to when the heating device is turned off.

[0053] The preset outlet water temperature is determined to be the historical target temperature;

[0054] The historical heating duration and the historical target temperature are determined as the historical heating control information.

[0055] In one possible implementation, the estimation module is used to:

[0056] Obtain the target temperature scaling coefficient corresponding to the historical target temperature;

[0057] The estimated scaling information is obtained by multiplying the historical heating time, the historical target temperature, and the scaling coefficient at the target temperature.

[0058] In one possible implementation, the prediction module is further configured to:

[0059] If the estimated structural information is greater than the preset descaling threshold, it is determined that the estimated structural information meets the preset descaling condition.

[0060] If the estimated structural information is less than or equal to the preset descaling threshold, it is determined that the estimated structural information does not meet the preset descaling conditions.

[0061] In one possible implementation, the apparatus further includes a repetition module, the repetition module being used for:

[0062] If the estimated structural information does not meet the preset descaling conditions, the estimated scaling information is determined to be cumulative scaling information.

[0063] Upon receiving a heating start command again, the heating device is activated in response to the received heating start command, and the heating device is repeatedly controlled to heat until the estimated scaling information of the water purifier is obtained.

[0064] The sum of the accumulated scaling information and the estimated scaling information is used as the estimated scaling information again.

[0065] Until the estimated scaling information meets the preset descaling conditions.

[0066] In one possible implementation, the current water outlet status information includes a first water outlet status and a second water outlet status, wherein the first water outlet status indicates that the water purifier is in a water outlet off state, and the second water outlet status indicates that the water purifier is in a water outlet on state.

[0067] The descaling control information determination module is used for:

[0068] When the current water outlet status information is the first water outlet status, the descaling control information is determined to be the first descaling control information, and the first control information indicates that descaling is started;

[0069] When the current water outlet status information is the second water outlet status, the descaling control information is determined to be the second control information, which indicates that the water purifier is waiting to switch to the first water outlet status.

[0070] In one possible implementation, the water purifier includes a water pump and a drain pipe. The water pump is connected to the inlet of the heating device, and the outlet of the heating device is connected to the outlet of the water purifier and the drain pipe respectively through a three-way valve.

[0071] The control module is used for:

[0072] When the descaling control information is the first control information, based on the three-way valve, the outlet of the heating device is connected to the drainage pipe, and the outlet of the heating device is not connected to the outlet of the water purifier.

[0073] The current number of repetitions is determined based on the preset outlet water temperature;

[0074] After a preset start time, the water pump is turned off.

[0075] After the water pump is turned off for a preset time, the process of turning the water pump on for a preset time and then turning it off is repeated.

[0076] Until the number of repetitions meets the current number of repetitions, based on the three-way valve, the outlet of the heating device is controlled to be disconnected from the drainage pipe, and the outlet of the heating device is connected to the outlet of the water purifier.

[0077] On the other hand, an electronic device is provided, including a processor and a memory, wherein the memory stores at least one instruction or at least one program, the at least one instruction or the at least one program being loaded and executed by the processor to implement the control method of the water purifier in any of the above aspects.

[0078] On the other hand, a computer-readable storage medium is provided, wherein at least one instruction or at least one program is stored therein, the at least one instruction or the at least one program being loaded and executed by a processor to implement the control method of the water purifier as described above.

[0079] On the other hand, a computer program product or computer program is provided, which includes computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the control method for a water purifier according to any of the above aspects.

[0080] This application embodiment obtains historical heating control information of the water purifier in response to a heating end command. This historical heating control information includes historical heating duration and historical target temperature. Based on the historical heating time and historical target temperature, estimated scaling information of the water purifier is obtained. If the estimated scaling information meets preset descaling conditions, the current water output status information of the water purifier is obtained. Based on the current water output status information, descaling control information for the water purifier is determined. The water purifier is controlled according to the descaling control information. By accumulating the heating temperature and working time of the heating element, the estimated scaling information is calculated. If the estimated scaling information meets the scaling conditions, it is determined that descaling of the heating element is required. After the user finishes using hot water, automatic descaling is performed according to the descaling control information, improving the efficiency and intelligence of water purifier descaling, ensuring user experience, reducing labor costs, and solving the problem of how to improve the efficiency of water purifier descaling. Attached Figure Description

[0081] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0082] Figure 1 This is a flowchart illustrating a control method for a water purifier provided in an embodiment of this application;

[0083] Figure 2 This is a schematic diagram of the structure of the water purifier provided in the embodiments of this application;

[0084] Figure 3 This is a structural block diagram of a control device for a water purifier provided in an embodiment of this application;

[0085] The corresponding labels in the figure are: 1-inlet valve, 2-water purification device, 3-wastewater valve, 4-purified water outlet, 5-sterilization device, 6-normal temperature water tank, 7-water pump, 8-heating device, 9-first temperature sensor, 10-second temperature sensor, 11-drainage pipe, 12-water outlet, 13-three-way valve. Detailed Implementation

[0086] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0087] With increasing demands for better water quality, instant hot water purifiers have become widely popular. Their heating method involves heating the water flowing through heating elements. However, due to prolonged heating, the solubility of salts like calcium carbonate and magnesium sulfate in the water decreases with increasing temperature (for example, the solubility of calcium carbonate at 80℃ is only 1 / 5 of that at room temperature). This makes it easier for crystals to form and adhere in high-temperature areas, posing a risk of scale buildup in the heating elements. Since users often set the maximum outlet water temperature above 95℃, the risk of scale buildup in the heating elements is even greater at high temperatures. Currently, the practice is for service technicians to perform on-site maintenance on the heating elements after prolonged use. However, on-site maintenance is costly in terms of labor and complex procedures.

[0088] Therefore, in order to improve descaling efficiency and meet users' requirements for water quality, there is an urgent need for an automatic descaling control method to achieve efficient descaling of water purifiers.

[0089] This application provides a control method for a water purifier. By accumulating the heating temperature and operating time of the heating element, the method calculates estimated scaling information. If the estimated scaling information meets the scaling conditions, it determines that descaling of the heating element is necessary. After the user finishes using hot water, automatic descaling is performed based on descaling control information, improving the efficiency and intelligence of descaling the water purifier. (See also...) Figure 1 The control method for the water purifier includes steps S101 to S109.

[0090] In step S101, in response to the heating end command, the historical heating control information of the water purifier is obtained; the historical heating control information includes historical heating duration and historical target temperature.

[0091] In one possible implementation, the water purifier includes a heating device.

[0092] The acquisition of the historical heating control information of the water purifier includes:

[0093] The heating device is activated in response to a heating start command; the heating start command includes a preset outlet water temperature.

[0094] The heating device is controlled to heat water so that the water outlet temperature of the water purifier is the preset outlet temperature.

[0095] In response to the heating end command, the heating device is turned off;

[0096] The historical heating duration is defined as the time from when the heating device is started to when the heating device is turned off.

[0097] The preset outlet water temperature is determined to be the historical target temperature;

[0098] The historical heating duration and the historical target temperature are determined as the historical heating control information.

[0099] In one possible implementation, the heating start command indicates that the object needs to heat its water at the current time. When hot water is needed, the object operates the water purifier according to its water demand, generating the heating start command, which instructs the water purifier's heating device to turn on.

[0100] In one possible implementation, the heating end command indicates that the object has finished using hot water at the current time. When the object finishes using hot water, the object operates the water purifier to generate the heating end command, which instructs the water purifier's heating device to shut off.

[0101] In one possible implementation, the heating start command includes a preset water outlet temperature, which is a target water outlet temperature set for each use of water by the object.

[0102] In one possible implementation, in response to the heating start command, the heating device is activated and controlled to heat the water so that the outlet water temperature of the water purifier is the preset outlet water temperature corresponding to the heating start command.

[0103] In one possible implementation, in response to the heating end command, the heating device is turned off, the preset outlet water temperature corresponding to the heating start command is recorded as T, and the time from starting the heating device to turning it off is recorded as t. The historical heating duration t and the historical target temperature T of the current heating cycle are determined as the historical heating control information.

[0104] In one possible implementation, the historical heating control information can be multiple, each corresponding to the historical heating duration and the historical target temperature for each heating cycle. Specifically, the historical heating control information includes the outlet water temperature T1 and its operating time t1, the outlet water temperature T2 and its operating time t2, ..., the outlet water temperature Tn and its operating time tn.

[0105] In one possible implementation, such as Figure 2 As shown, the water purifier includes an inlet valve and a water purification device. The water purification device includes a wastewater valve and a purified water outlet. The wastewater valve is used to discharge wastewater into the sewer, and the purified water outlet is used to output water purified by the water purification device.

[0106] In one possible implementation, such as Figure 2As shown, the water purifier includes a sterilization device, which is connected to the purified water outlet. The outlet of the sterilization device is connected to both the water outlet and a room temperature water tank. The room temperature water tank is connected to a heating device via a water pump.

[0107] In one possible implementation, such as Figure 2 As shown, a first temperature sensor is installed near the water inlet of the heating device, and a second temperature sensor is installed near the water outlet of the heating device. The first temperature sensor is used to detect the inlet water temperature of the heating device, and the second temperature sensor is used to detect the outlet water temperature of the heating device.

[0108] In one possible implementation, the second temperature sensor detects the outlet water temperature of the heating device to obtain the historical heating time and the historical target temperature.

[0109] In this implementation, in response to the heating end command, the historical heating control information of the water purifier is obtained. The historical heating control information includes the historical heating duration and the historical target temperature, which facilitates the subsequent estimation of scaling information based on the above information and improves the accuracy of automatic descaling.

[0110] In step S103, the estimated scaling information of the water purifier is obtained based on the historical heating time and the historical target temperature.

[0111] In one possible implementation, the step of estimating the scale buildup information of the water purifier based on the historical heating time and the historical target temperature includes:

[0112] Obtain the target temperature scaling coefficient corresponding to the historical target temperature;

[0113] The estimated scaling information is obtained by multiplying the historical heating time, the historical target temperature, and the scaling coefficient at the target temperature.

[0114] In one possible implementation, the target temperature scaling factor characterizes the likelihood that soluble salts (such as calcium carbonate, calcium sulfate, etc.) in the solution will precipitate and adhere to the tube wall of the heating device at the historical target temperature. Specifically, the scaling factor varies at different temperatures, with a higher value indicating a greater risk of scaling.

[0115] In one possible implementation, the scaling coefficient at the target temperature corresponding to the historical target temperature is obtained by querying a preset scaling coefficient table. Specifically, the preset scaling coefficient table is constructed based on multiple temperatures and the scaling coefficient corresponding to each temperature.

[0116] In one possible implementation, the estimated scaling information is obtained by multiplying the historical heating time, the historical target temperature, and the scaling coefficient at the target temperature. Specifically, the estimated scaling information H is calculated as follows:

[0117] H = A * T * t

[0118] in,

[0119] t represents the historical heating time.

[0120] T represents the historical target temperature.

[0121] A represents the scaling coefficient at the target temperature.

[0122] In one possible implementation, the estimated scaling information H can also be calculated as follows:

[0123] H=A1*T1*t1+A2*T2*t2+…+An*Tn*tn

[0124] in,

[0125] T1, T2...Tn are the historical target temperatures from multiple heating cycles.

[0126] t1, t2…tn are the historical heating times corresponding to T1, T2…Tn respectively.

[0127] A1, A2…An are the scaling coefficients at the target temperatures of T1, T2…Tn, respectively.

[0128] In this implementation, the estimated scaling information of the water purifier is determined based on the historical heating time, the historical target temperature, and the scaling coefficient at the target temperature. Based on the scaling coefficient at different temperatures, the scaling information for each heating stage is estimated and accumulated, which improves the accuracy of determining the scaling status of the water purifier.

[0129] In one possible implementation, the method further includes:

[0130] If the estimated structural information is greater than the preset descaling threshold, it is determined that the estimated structural information meets the preset descaling condition.

[0131] If the estimated structural information is less than or equal to the preset descaling threshold, it is determined that the estimated structural information does not meet the preset descaling conditions.

[0132] In one possible implementation, the preset descaling threshold is obtained based on testing in a laboratory environment.

[0133] In one possible implementation, if the estimated structural information is greater than the preset descaling threshold, it is determined that the heating device needs to be descaled, i.e., the preset descaling condition is met.

[0134] In one possible implementation, if the estimated structural information is less than or equal to the preset descaling threshold, it is determined that the heating device does not need to be descaled, i.e., the preset descaling condition is not met.

[0135] In this implementation, the comparison between the estimated scaling information and the preset descaling threshold determines whether the water purifier needs descaling, thus improving the efficiency of descaling in the water purifier.

[0136] In one possible implementation, the method further includes:

[0137] If the estimated structural information does not meet the preset descaling conditions, the estimated scaling information is determined to be cumulative scaling information.

[0138] Upon receiving a heating start command again, the heating device is activated in response to the received heating start command, and the heating device is repeatedly controlled to heat until the estimated scaling information of the water purifier is obtained.

[0139] The sum of the accumulated scaling information and the estimated scaling information is used as the estimated scaling information again.

[0140] Until the estimated scaling information meets the preset descaling conditions.

[0141] In one possible implementation, if the estimated structural information does not meet the preset descaling conditions, the estimated scaling information H is obtained by cumulative calculation based on the following formula.

[0142] H=A1*T1*t1+A2*T2*t2+…+An*Tn*tn

[0143] in,

[0144] T1, T2...Tn are the historical target temperatures from multiple heating cycles.

[0145] t1, t2…tn are the historical heating times corresponding to T1, T2…Tn respectively.

[0146] A1, A2…An are the scaling coefficients at target temperatures T1, T2…Tn, respectively.

[0147] In one possible implementation, if the estimated scaling information obtained through cumulative calculation meets the preset descaling conditions, it is determined that the heating device needs to be descaled, that is, the estimated scaling information meets the preset descaling conditions.

[0148] In this implementation, if the estimated scaling information indicates that the water purifier does not need to perform descaling at present, the descaling logic of the water purifier is not executed. Descaling is only performed after the accumulated estimated scaling information meets the preset descaling conditions, which improves the accuracy of automatic descaling.

[0149] In step S105, if the estimated structural information meets the preset descaling conditions, the current water output status information of the water purifier is obtained.

[0150] In one possible implementation, the current water output status information of the water purifier indicates whether the water purifier is dispensing water.

[0151] In one possible implementation, when the water purifier is in a water outlet closed state, i.e., when the water purifier is not currently dispensing water, the current water outlet status information is determined to be the first water outlet status.

[0152] In one possible implementation, the water purifier is determined to be in a water-off state when the user turns off the water supply.

[0153] In one possible implementation, when the water purifier is in the water outlet open state, that is, when the water purifier is currently discharging water, the current water outlet state information is determined to be the second water outlet state.

[0154] In one possible implementation, the water purifier is determined to be in the water-discharge-on state when the user turns on the water supply.

[0155] In step S107, based on the current water outlet status information, descaling control information for the water purifier is determined.

[0156] In one possible implementation, the current water outlet status information includes a first water outlet status and a second water outlet status, wherein the first water outlet status indicates that the water purifier is in a water outlet off state, and the second water outlet status indicates that the water purifier is in a water outlet on state.

[0157] The step of determining descaling control information for the water purifier based on the current water outlet status information includes:

[0158] When the current water outlet status information is the first water outlet status, the descaling control information is determined to be the first descaling control information, and the first control information indicates that descaling is started;

[0159] When the current water outlet status information is the second water outlet status, the descaling control information is determined to be the second control information, which indicates that the water purifier is waiting to switch to the first water outlet status.

[0160] In one possible implementation, if the current water output status information is the first water output status, i.e., the water purifier is not currently outputting water, it is determined that the water purifier meets the descaling conditions, the descaling control information is determined to be the first descaling control information, and descaling is initiated.

[0161] In one possible implementation, when the current water outlet status information is the second water outlet status, i.e. the water purifier is currently discharging water, it is determined that the water purifier does not meet the descaling conditions, the descaling control information is determined to be the second control information, and the water purifier is waited to switch to the first water outlet status.

[0162] In this implementation, the descaling operation is performed after the water purifier has finished dispensing water, which does not affect the user's normal use and improves the user experience.

[0163] In step S109, the water purifier is controlled according to the descaling control information.

[0164] In one possible implementation, the water purifier includes a water pump and a drain pipe. The water pump is connected to the inlet of the heating device, and the outlet of the heating device is connected to the outlet of the water purifier and the drain pipe respectively through a three-way valve.

[0165] The step of controlling the water purifier according to the descaling control information includes:

[0166] When the descaling control information is the first control information, based on the three-way valve, the outlet of the heating device is connected to the drainage pipe, and the outlet of the heating device is not connected to the outlet of the water purifier.

[0167] The current number of repetitions is determined based on the preset outlet water temperature;

[0168] After a preset start time, the water pump is turned off.

[0169] After the water pump is turned off for a preset time, the process of turning the water pump on for a preset time and then turning it off is repeated.

[0170] Until the number of repetitions meets the current number of repetitions, based on the three-way valve, the outlet of the heating device is controlled to be disconnected from the drainage pipe, and the outlet of the heating device is connected to the outlet of the water purifier.

[0171] In one possible implementation, such as Figure 2As shown, the water purifier includes a water pump and a drain pipe. The water pump is connected to the inlet of the heating device, and the outlet of the heating device is connected to the outlet of the water purifier and the drain pipe respectively through a three-way valve.

[0172] In one possible implementation, when the descaling control information is the first control information, the three-way valve is opened to switch to the drain pipe, so that the outlet of the heating device is connected to the drain pipe and the outlet of the heating device is not connected to the outlet of the water purifier.

[0173] In one possible implementation, the current number of repetitions N is determined based on the preset outlet water temperature T, and the current number of repetitions N is calculated as follows:

[0174] N = B / T

[0175] Where B is the preset coefficient and T is the preset outlet water temperature.

[0176] In one possible implementation, the current number of repetitions N is related to the preset outlet water temperature T. The lower the temperature, the greater the number of cycles, because the lower the temperature of the heating device, the less stress is after passing cold water, and the more difficult it is for the scale to break.

[0177] In one possible implementation, if the estimated structural information is accumulated after multiple heating cycles, the preset outlet water temperature is the most recent preset outlet water temperature that satisfies the preset descaling conditions.

[0178] In one possible implementation, the water pump is turned on for a preset on time, then turned off. After a preset off time, the process of turning the water pump on for a preset on time and then off is repeated. Specifically, the water pump is turned on to maximum power for 3 seconds, then off for 2 seconds, and then turned on to maximum power for 3 seconds, in a cyclical manner. The continuous impact of the water flow helps to remove scale.

[0179] In one possible implementation, when the number of repetitions meets the current number of repetitions, the three-way valve is closed and switched to connect to the outlet of the water purifier, so that the outlet of the heating device is not connected to the drain pipe and the outlet of the heating device is connected to the outlet of the water purifier.

[0180] In this implementation, the water purifier is controlled according to the descaling control information, and the cleaning effect of descaling is improved by multiple flushes.

[0181] The above embodiments of this application have the following beneficial effects: In response to a heating end command, the embodiments of this application acquire historical heating control information of the water purifier; the historical heating control information includes historical heating duration and historical target temperature; based on the historical heating time and historical target temperature, an estimated scale buildup information of the water purifier is obtained; if the estimated scale buildup information meets preset descaling conditions, the current water outlet status information of the water purifier is acquired; based on the current water outlet status information, descaling control information for the water purifier is determined; and the water purifier is controlled according to the descaling control information. By accumulating the heating temperature and working time of the heating element, the estimated scale buildup information is calculated. If the estimated scale buildup information meets the scale buildup conditions, it is determined that descaling of the heating element is required. After the user finishes using hot water, automatic descaling is performed according to the descaling control information, improving the efficiency and intelligence of descaling the water purifier, ensuring user experience, reducing labor costs, and solving the problem of how to improve the efficiency of descaling the water purifier.

[0182] Figure 3 This diagram illustrates the structure of a control device 300 for a water purifier according to an embodiment of this application. This device has the function of implementing the control method for the water purifier described in the above-described method embodiments. This function can be implemented by hardware or by hardware executing corresponding software. Figure 3 As shown, the device may include:

[0183] The heating control information acquisition module 301 is used to acquire the historical heating control information of the water purifier in response to the heating end command; the historical heating control information includes historical heating duration and historical target temperature;

[0184] The estimation module 302 is used to make an estimation based on the historical heating time and the historical target temperature to obtain the estimated scaling information of the water purifier;

[0185] The water outlet status information acquisition module 303 is used to acquire the current water outlet status information of the water purifier when the estimated structural information meets the preset descaling conditions.

[0186] The descaling control information determination module 304 is used to determine the descaling control information for the water purifier based on the current water outlet status information.

[0187] The control module 305 is used to control the water purifier according to the descaling control information.

[0188] In one possible implementation, the water purifier includes a heating device, and the heating control information acquisition module 301 is used for:

[0189] The heating device is activated in response to a heating start command; the heating start command includes a preset outlet water temperature.

[0190] The heating device is controlled to heat water so that the water outlet temperature of the water purifier is the preset outlet temperature.

[0191] In response to the heating end command, the heating device is turned off;

[0192] The historical heating duration is defined as the time from when the heating device is started to when the heating device is turned off.

[0193] The preset outlet water temperature is determined to be the historical target temperature;

[0194] The historical heating duration and the historical target temperature are determined as the historical heating control information.

[0195] In one possible implementation, the estimation module 302 is used to:

[0196] Obtain the target temperature scaling coefficient corresponding to the historical target temperature;

[0197] The estimated scaling information is obtained by multiplying the historical heating time, the historical target temperature, and the scaling coefficient at the target temperature.

[0198] In one possible implementation, the prediction module 302 is further configured to:

[0199] If the estimated structural information is greater than the preset descaling threshold, it is determined that the estimated structural information meets the preset descaling condition.

[0200] If the estimated structural information is less than or equal to the preset descaling threshold, it is determined that the estimated structural information does not meet the preset descaling conditions.

[0201] In one possible implementation, the device further includes a repetition module 306, which is used for:

[0202] If the estimated structural information does not meet the preset descaling conditions, the estimated scaling information is determined to be cumulative scaling information.

[0203] Upon receiving a heating start command again, the heating device is activated in response to the received heating start command, and the heating device is repeatedly controlled to heat until the estimated scaling information of the water purifier is obtained.

[0204] The sum of the accumulated scaling information and the estimated scaling information is used as the estimated scaling information again.

[0205] Until the estimated scaling information meets the preset descaling conditions.

[0206] In one possible implementation, the current water outlet status information includes a first water outlet status and a second water outlet status, wherein the first water outlet status indicates that the water purifier is in a water outlet off state, and the second water outlet status indicates that the water purifier is in a water outlet on state.

[0207] The descaling control information determination module 304 is used for:

[0208] When the current water outlet status information is the first water outlet status, the descaling control information is determined to be the first descaling control information, and the first control information indicates that descaling is started;

[0209] When the current water outlet status information is the second water outlet status, the descaling control information is determined to be the second control information, which indicates that the water purifier is waiting to switch to the first water outlet status.

[0210] In one possible implementation, the water purifier includes a water pump and a drain pipe. The water pump is connected to the inlet of the heating device, and the outlet of the heating device is connected to the outlet of the water purifier and the drain pipe respectively through a three-way valve.

[0211] The control module 305 is used for:

[0212] When the descaling control information is the first control information, based on the three-way valve, the outlet of the heating device is connected to the drainage pipe, and the outlet of the heating device is not connected to the outlet of the water purifier.

[0213] The current number of repetitions is determined based on the preset outlet water temperature;

[0214] After a preset start time, the water pump is turned off.

[0215] After the water pump is turned off for a preset time, the process of turning the water pump on for a preset time and then turning it off is repeated.

[0216] Until the number of repetitions meets the current number of repetitions, based on the three-way valve, the outlet of the heating device is controlled to be disconnected from the drainage pipe, and the outlet of the heating device is connected to the outlet of the water purifier.

[0217] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules when implementing its functions. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0218] This application provides an electronic device including a processor and a memory. The memory stores at least one instruction or at least one program. The at least one instruction or at least one program is loaded and executed by the processor to implement any of the water purifier control methods provided in the above method embodiments.

[0219] Memory can be used to store software programs and modules. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory. Memory can primarily include a program storage area and a data storage area. The program storage area can store the operating system, application programs required for the functions, etc.; the data storage area can store data created based on the use of the device, etc. Furthermore, memory can include high-speed random access memory, and can also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, memory can also include a memory controller to provide the processor with access to the memory.

[0220] Embodiments of this application also provide a computer-readable storage medium, which can be disposed in an electronic device to store at least one instruction or at least one program related to implementing a control method for a water purifier. The at least one instruction or the at least one program is loaded and executed by the processor to implement any of the water purifier control methods provided in the above-described method embodiments.

[0221] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0222] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0223] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the apparatus embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0224] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0225] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A control method for a water purifier, characterized in that, The method includes: In response to a heating end command, the historical heating control information of the water purifier is acquired; the water purifier includes a heating device. The step of obtaining the historical heating control information of the water purifier includes: In response to a heating start command, the heating device is activated; the heating start command includes a preset outlet water temperature; the heating device is controlled to heat the water so that the outlet water temperature of the water purifier is the preset outlet water temperature; In response to the heating end command, the heating device is turned off; the duration from starting the heating device to turning it off is determined as the historical heating duration; the preset outlet water temperature is determined as the historical target temperature; The historical heating duration and the historical target temperature are determined as the historical heating control information; Obtain the target temperature scaling coefficient corresponding to the historical target temperature; Multiply the historical heating time, the historical target temperature, and the scaling coefficient at the target temperature to obtain the estimated scaling information; If the estimated scaling information is greater than the preset descaling threshold, it is determined that the estimated scaling information meets the preset descaling conditions; if the estimated scaling information is less than or equal to the preset descaling threshold, it is determined that the estimated scaling information does not meet the preset descaling conditions. If the estimated scaling information meets the preset descaling conditions, the current water output status information of the water purifier is obtained; Based on the current water output status information, descaling control information for the water purifier is determined; The water purifier is controlled according to the descaling control information.

2. The control method for a water purifier according to claim 1, characterized in that, The method further includes: If the estimated scaling information does not meet the preset descaling conditions, the estimated scaling information is determined to be cumulative scaling information. Upon receiving a heating start command again, the heating device is activated in response to the received heating start command, and the heating device is repeatedly controlled to heat until the estimated scaling information of the water purifier is obtained. The sum of the accumulated scaling information and the estimated scaling information is used as the estimated scaling information again. Until the estimated scaling information meets the preset descaling conditions.

3. The control method for a water purifier according to claim 1, characterized in that, The current water outlet status information includes a first water outlet status and a second water outlet status. The first water outlet status indicates that the water purifier is in a water outlet off state, and the second water outlet status indicates that the water purifier is in a water outlet on state. The step of determining descaling control information for the water purifier based on the current water outlet status information includes: When the current water outlet status information is the first water outlet status, the descaling control information is determined to be the first control information, and the first control information indicates that descaling is started; When the current water outlet status information is the second water outlet status, the descaling control information is determined to be the second control information, which indicates that the water purifier is waiting to switch to the first water outlet status.

4. The control method for a water purifier according to claim 3, characterized in that, The water purifier includes a water pump and a drain pipe. The water pump is connected to the inlet of the heating device, and the outlet of the heating device is connected to the outlet of the water purifier and the drain pipe respectively through a three-way valve. The step of controlling the water purifier according to the descaling control information includes: When the descaling control information is the first control information, based on the three-way valve, the outlet of the heating device is connected to the drainage pipe, and the outlet of the heating device is not connected to the outlet of the water purifier. The current number of repetitions is determined based on the preset outlet water temperature; After a preset start time, the water pump is turned off. After the water pump is turned off for a preset time, the process of turning the water pump on for a preset time and then turning it off is repeated. Until the number of repetitions meets the current number of repetitions, based on the three-way valve, the outlet of the heating device is controlled to be disconnected from the drainage pipe, and the outlet of the heating device is connected to the outlet of the water purifier.

5. A control device for a water purifier, characterized in that, The device includes: A heating control information acquisition module is used to acquire historical heating control information of the water purifier in response to a heating end command; the water purifier includes a heating device; wherein, acquiring the historical heating control information of the water purifier includes: activating the heating device in response to a heating start command; the heating start command includes a preset outlet water temperature; controlling the heating device to heat so that the outlet water temperature of the water purifier is the preset outlet water temperature; activating the heating device in response to the heating end command; determining the time from activating the heating device to activating the heating device as the historical heating time; determining the preset outlet water temperature as the historical target temperature; and determining the historical heating time and the historical target temperature as the historical heating control information. The estimation module is used to obtain the target temperature scaling coefficient corresponding to the historical target temperature; and multiply the historical heating time, the historical target temperature and the target temperature scaling coefficient to obtain the estimated scaling information. The water outlet status information acquisition module is used to determine that the estimated scaling information meets the preset descaling conditions when the estimated scaling information is greater than the preset descaling threshold; to determine that the estimated scaling information does not meet the preset descaling conditions when the estimated scaling information is less than or equal to the preset descaling threshold; and to acquire the current water outlet status information of the water purifier when the estimated scaling information meets the preset descaling conditions. The descaling control information determination module is used to determine the descaling control information for the water purifier based on the current water outlet status information. The control module is used to control the water purifier according to the descaling control information.

6. An electronic device, characterized in that, The device includes a processor and a memory, wherein the memory stores at least one instruction or at least one program, the at least one instruction or the at least one program being loaded and executed by the processor to implement the control method of the water purifier as described in any one of claims 1 to 4.

7. A computer-readable storage medium storing at least one instruction or at least one program, said at least one instruction or said at least one program being loaded and executed by a processor to implement the control method of a water purifier as claimed in any one of claims 1 to 4.

Images