Water purifier and water purifier control method

Abstract

The present application relates to a water purifier and a water purifier control method. The water purifier includes: a detection device, which is arranged at the water inlet end of the filter element, and is used to detect the water pressure value at the water inlet end; a controller, which is used to obtain a water pressure reference value based on the water pressure value detected by the detection device, and obtain a start-up flushing water pressure value according to a first water pressure reference value; compare the second water pressure reference value with the start-up flushing water pressure value to obtain a first comparison result; according to the first comparison result, control the flushing device to flush the filter element; a flushing device, which is used to flush the filter element in response to the control instruction of the controller. In this solution, the water purifier can more accurately control the flushing device to flush the filter element under different water pressures, thereby avoiding the occurrence of situations such as failure to flush in time or waste of water during flushing, thereby extending the service life of the filter element.

Description

Technical Field

[0001] The present application relates to the technical field of water purifiers, and in particular to a water purifier, a water purifier control method, a storage medium, and a computer program product. Background Art

[0002] The water purifier has a filter cleaning function. Traditionally, the filter cleaning methods include manual removal and flushing, and automatic flushing. When the filter cleaning method is automatic flushing, the flow meter detects the attenuated flow value to determine whether to activate automatic flushing.

[0003] However, due to differences in tap water pressure, the filter's water flow rate varies. When the tap water pressure is high, the filter's water flow rate is too high, potentially leading to the filter not being flushed promptly when it should. When the tap water pressure is low, the filter's water flow rate is low, potentially initiating automatic flushing when it shouldn't, resulting in wasted water. Therefore, monitoring the need for flushing using a single, fixed flow rate may not align with the actual filter contamination level, leading to delayed flushing or wasted water. Summary of the Invention

[0004] Based on this, it is necessary to provide a water purifier and a water purifier control method, storage medium and computer program product that can start flushing the filter element more accurately under different water pressures to address the above technical problems.

[0005] In a first aspect, the present application provides a water purifier. The water purifier comprises:

[0006] A detection device, provided at the water inlet end of the filter element, for detecting the water pressure value at the water inlet end;

[0007] The controller is configured to obtain a water pressure reference value based on the water pressure value detected by the detection device, the water pressure reference value including a first water pressure reference value and a second water pressure reference value; obtain a start-up flushing water pressure value based on the first water pressure reference value; compare the second water pressure reference value with the start-up flushing water pressure value to obtain a first comparison result; and control the flushing device to flush the filter element based on the first comparison result; the first water pressure reference value is an average value of the water pressure values detected during a first preset time period when no water is drawn; the second water pressure reference value is an average value of the water pressure values detected during a second preset time period during the water drawing process;

[0008] A flushing device is used to flush the filter element in response to a control instruction of the controller.

[0009] In one embodiment, the controller is specifically used to obtain the correspondence between the first preset water pressure range and the starting flushing water pressure value; determine the first preset water pressure range in which the first water pressure reference value falls, and use the starting flushing water pressure value corresponding to the first preset water pressure range as the starting flushing water pressure value corresponding to the first water pressure reference value.

[0010] In one embodiment, the controller is specifically configured to control the flushing device to flush the filter element when the first comparison result is that the second water pressure reference value is not less than the start-up flushing water pressure value.

[0011] In one embodiment, the controller is also used to obtain a starting flushing pressure difference value based on the first water pressure reference value; obtain an initial water pressure value, and determine an actual pressure difference value based on the initial water pressure value and the second water pressure reference value; compare the actual pressure difference value with the starting flushing pressure difference value to obtain a second comparison result; and control the flushing device to flush the filter element based on the second comparison result; the initial water pressure value is the average value of the water pressure values detected during the second preset time period when water extraction is started.

[0012] In one embodiment, the controller is specifically used to obtain the correspondence between the second preset water pressure range and the starting flushing pressure difference value; determine the second preset water pressure range in which the first water pressure reference value falls, and use the starting flushing pressure difference value corresponding to the second preset water pressure range as the starting flushing pressure difference value corresponding to the first water pressure reference value.

[0013] In one embodiment, the controller is specifically configured to control the flushing device to flush the filter element when the second comparison result is that the actual pressure difference value is not less than the start-up flushing pressure difference value.

[0014] In a second aspect, the present application also provides a water purifier control method. The method comprises:

[0015] Get the water pressure value at the water inlet;

[0016] Based on the water pressure value, a water pressure reference value is obtained; the water pressure reference value includes a first water pressure reference value and a second water pressure reference value; the first water pressure reference value is an average value of water pressure values detected during a first preset time period when no water is drawn; the second water pressure reference value is an average value of water pressure values detected during a second preset time period during water drawing;

[0017] Obtaining a start-up flushing water pressure value according to the first water pressure reference value;

[0018] comparing the second water pressure reference value with the start-up flushing water pressure value to obtain a first comparison result;

[0019] According to the first comparison result, the filter element is controlled to be flushed.

[0020] In a third aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the above method when executed by a processor.

[0021] In a fourth aspect, the present application further provides a computer program product, wherein the computer program product comprises a computer program, and the steps of the above method are performed when the computer program is executed by a processor.

[0022] The above-mentioned water purifier and water purifier control method, storage medium and computer program product obtain the first water pressure reference value and the second water pressure reference value based on the detected water pressure value, obtain the starting flushing water pressure value through the first water pressure reference value before water is taken, and according to the second water pressure reference value and the starting flushing water pressure value during the water taking process, more accurately control the flushing device to flush the filter element under different water pressures, avoiding the occurrence of situations such as failure to flush in time or waste of water during flushing, thereby extending the service life of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural block diagram of a water purifier in one embodiment;

[0024] Figure 2 A structural diagram showing the position of a pressure sensor in one embodiment;

[0025] Figure 3 Schematic diagram of a flow chart of a water purifier control method in one embodiment;

[0026] Figure 4 A schematic flow chart of a water purifier control method in another embodiment;

[0027] Figure 5 Schematic diagram of a flow chart of a water purifier control method in another embodiment;

[0028] Figure 6 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0031] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intervening element. In addition, the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc., if there is transmission of electrical signals or data between the connected objects.

[0032] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include," "comprising," "having," and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Furthermore, the term "and / or" as used in this specification includes any and all combinations of the relevant listed items.

[0033] In one embodiment, reference Figure 1 , shows the structural block diagram of the water purifier, including:

[0034] The detection device 102 is provided at the water inlet end of the filter element and is used to detect the water pressure value at the water inlet end.

[0035] The detection device 102 is installed in the water purifier at the water inlet end of the filter element and is used to detect the water pressure value at the water inlet end, that is, the water pressure value at the water inlet end. The water pressure value at the water inlet end includes the water pressure value during the water supply process and the water pressure value during the non-water supply process.

[0036] In actual practice, a water purifier includes a raw water inlet, a filter element, a valve, a waste water outlet, a purified water outlet, and water flow branches between the above components.

[0037] Filter cartridges include, but are not limited to, pre-filters and reverse osmosis filters. Pre-filters are crucial components in water purifiers and are typically connected to the purifier's raw water inlet. Raw water to be filtered enters the purifier through the inlet, where the pre-filter performs the initial filtration process, removing harmful substances such as silt, rust, bacteria, colloids, and large organic matter. This results in the final filtered raw water.

[0038] Exemplarily, the detection device 102 can detect the water flowing through the water inlet end of the filter element in real time to obtain the corresponding water pressure value. In the present application, the detection device can be a pressure sensor, and its specific position can be set in the water flow branch of the raw water inlet, that is, the water inlet end of the filter element.

[0039] Specifically, refer to Figure 2 , shows the structural diagram of the position of the pressure sensor. When the detection device is a pressure sensor, its position is set at the water inlet end of the filter element. When the water purifier is working, the raw water to be filtered enters the water purifier from the raw water inlet, and the filter element in the water purifier filters the raw water. The filtered wastewater flows out from the wastewater outlet, and the rest of the water flows out from the clean water branch. Among them, Figure 2 The direction of the arrow indicates the direction of water flow.

[0040] For example, in a water purifier, a detection device 102 provided on the water inlet end of the filter element can detect the water entering the filter element to obtain and collect the corresponding water pressure value. The detection device 102 is connected to the controller 104 and can transmit the collected water pressure value to the controller 104.

[0041] The controller 104 is used to obtain a water pressure reference value based on the water pressure value detected by the detection device 102, and the water pressure reference value includes a first water pressure reference value and a second water pressure reference value; according to the first water pressure reference value, the starting flushing water pressure value is obtained; the second water pressure reference value is compared with the starting flushing water pressure value to obtain a first comparison result; according to the first comparison result, the flushing device is controlled to flush the filter element; the first water pressure reference value is the average value of the water pressure values detected during the first preset time when no water is taken; the second water pressure reference value is the average value of the water pressure values detected during the second preset time during the water taking process.

[0042] The water pressure value includes the water pressure value detected when no water is drawn and the water pressure value detected when water is drawn. The water pressure reference value can be obtained based on the water pressure value detected by the detection device 102. The water pressure reference value can include a first water pressure reference value and a second water pressure reference value. The first water pressure reference value and the second water pressure reference value are both average values. The first water pressure reference value can be the average value of the water pressure values detected during the first preset time period when no water is drawn from the faucet, that is, the average value of the water pressure values detected during the first preset time period before water is drawn from the faucet.

[0043] The second water pressure reference value may be an average value of the water pressure values detected during the second preset time period during the water extraction process, or an average value of the pressure values detected after the second preset time period has elapsed since the start of water extraction.

[0044] For example, the first preset duration and the second preset duration may be empirical values. The first preset duration may be equal to the second preset duration. Specifically, the first preset duration and the second preset duration may be set based on actual conditions, and the present invention is not limited thereto.

[0045] Specifically, the controller 104 can be connected to the detection device 102. Based on the water pressure value detected by the detection device, the controller 104 obtains a first water pressure reference value and a second water pressure reference value, obtains a start-up flushing water pressure value based on the first water pressure reference value, compares the second water pressure reference value with the start-up flushing water pressure value, and determines whether to generate a control instruction based on the comparison result to control the flushing device 106 to flush the filter element, thereby realizing the start-up flushing function of the filter element in the water purifier.

[0046] The flushing device 106 is used to flush the filter element in response to the control instruction of the controller 104.

[0047] Wherein, the flushing device 106 is a device that can flush the filter element in the water purifier. Specifically, the position of the flushing device in the water purifier can be set according to actual conditions, as long as the filter element can be flushed.

[0048] Specifically, the flushing device 106 can be connected to the controller 104 to respond to the control of the controller 104 to flush the filter element in the water purifier.

[0049] In the above-mentioned water purifier, the controller obtains the first water pressure reference value and the second water pressure reference value based on the detected water pressure value, and obtains the starting flushing water pressure value through the first water pressure reference value before water is taken. According to the second water pressure reference value and the starting flushing water pressure value during the water taking process, the flushing device is more accurately controlled to flush the filter element under different water pressures, avoiding the occurrence of failure to flush in time or waste of water during flushing, thereby extending the service life of the filter element.

[0050] In one embodiment, the controller 104 is specifically used to obtain the correspondence between the first preset water pressure range and the starting flushing water pressure value; determine the first preset water pressure range in which the first water pressure reference value falls, and use the starting flushing water pressure value corresponding to the first preset water pressure range as the starting flushing water pressure value corresponding to the first water pressure reference value.

[0051] The controller 104 pre-stores a plurality of corresponding relationships between the first preset water pressure ranges and the start-up flushing water pressure values. Specifically, the greater the pressure value in the first preset water pressure range, the greater the corresponding start-up flushing pressure value.

[0052] In specific practice, for example, there are four sets of corresponding relationships between the first preset water pressure ranges and the start-up flushing water pressure values. When the first preset water pressure range of the first group is greater than or equal to 0.4 MPa, the corresponding start-up flushing water pressure value is a1; when the first preset water pressure range of the second group is less than 0.4 MPa and greater than or equal to 0.25 MPa, the corresponding start-up flushing water pressure value is a2; when the first preset water pressure range of the third group is less than 0.25 MPa and greater than or equal to 0.15 MPa, the corresponding start-up flushing water pressure value is a3; when the first preset water pressure range of the fourth group is less than 0.15 MPa and greater than or equal to 0.1 MPa, the corresponding start-up flushing water pressure value is a4. Among them, a1>a2>a3>a4, and a1, a2, a3, and a4 can be fixed values set according to experience.

[0053] For example, if it is detected that the water pressure value at the water inlet is always very small, and it is in a low water pressure state, a flow meter can be set. When the cumulative clean water volume recorded by the flow meter reaches the set threshold, the flushing device is controlled to flush the filter element.

[0054] In the above embodiment, the controller 104 determines the first preset water pressure range within which the first water pressure reference value falls, and uses the starting flush water pressure value corresponding to the first preset water pressure range as the starting flush water pressure value corresponding to the first water pressure reference value. Based on the correspondence between the first preset water pressure range and the starting flush water pressure value, the corresponding starting flush water pressure value can be accurately obtained under different water pressures.

[0055] In one embodiment, the controller 104 is specifically configured to control the flushing device to flush the filter element when the first comparison result is that the second water pressure reference value is not less than the start-up flushing water pressure value.

[0056] The second water pressure reference value is the average value of the water pressure values detected during the second preset time period during the water collection process. The first comparison result includes two situations: one situation where the second water pressure reference value is not less than the start-up flushing water pressure value, and the other situation where the second water pressure reference value is less than the start-up flushing water pressure value.

[0057] In the above embodiment, when the second water pressure reference value is not less than the start-up flushing water pressure value, the controller 104 sends a control instruction to the flushing device to control the flushing device to flush the filter element, so as to more accurately determine whether the filter element flushing function needs to be started, thereby realizing a more accurate and intelligent start-up flushing function, reducing the waste of water resources, and extending the service life of the filter element.

[0058] In one embodiment, the controller 104 is also used to obtain a starting flushing pressure difference value based on the first water pressure reference value; obtain an initial water pressure value, and determine an actual pressure difference value based on the initial water pressure value and the second water pressure reference value; compare the actual pressure difference value with the starting flushing pressure difference value to obtain a second comparison result; and control the flushing device to flush the filter element based on the second comparison result; the initial water pressure value is the average value of the water pressure values detected during the second preset time period when water extraction is started.

[0059] The initial water pressure value may be the average value of the water pressure values detected during the second preset time period when water extraction is started, that is, the average value of the initial water pressure values detected during the second preset time period during the water extraction process.

[0060] Specifically, the controller 104 can also be used to obtain a start-up flushing pressure difference value based on a first water pressure reference value; obtain an initial water pressure value based on the water pressure value, and determine an actual pressure difference value based on the initial water pressure value and a second water pressure reference value; compare the actual pressure difference value with the start-up flushing pressure difference value, and determine whether to generate a control instruction based on the comparison result to control the flushing device 106 to flush the filter element, thereby realizing the start-up flushing function of the filter element in the water purifier.

[0061] In the above embodiment, based on the detected water pressure value, the first water pressure reference value, the initial water pressure value and the second water pressure reference value are obtained, and the starting flushing pressure difference value is obtained through the first water pressure reference value before water is taken. The actual pressure difference value is determined according to the initial water pressure value and the second water pressure reference value. Based on the actual pressure difference value and the starting flushing pressure difference value, it is possible to more accurately determine whether it is necessary to start flushing of the filter element under different water pressures, thereby avoiding the occurrence of situations such as failure to flush in time or waste of water in flushing, thereby extending the service life of the filter element.

[0062] In one embodiment, the controller 104 is specifically used to obtain the correspondence between the second preset water pressure range and the starting flushing pressure difference value; determine the second preset water pressure range in which the first water pressure reference value falls, and use the starting flushing pressure difference value corresponding to the second preset water pressure range as the starting flushing pressure difference value corresponding to the first water pressure reference value.

[0063] The controller 104 pre-stores a plurality of corresponding relationships between the second preset water pressure ranges and the start-up flushing pressure differential values. Specifically, the greater the pressure value in the second preset water pressure range, the greater the corresponding start-up flushing pressure differential value.

[0064] In specific practice, for example, there are four sets of corresponding relationships between the second preset water pressure ranges and the start-up flushing pressure differential values. When the second preset water pressure range of the first group is greater than or equal to 0.4 MPa, the corresponding start-up flushing pressure differential value is b1; when the second preset water pressure range of the second group is less than 0.4 MPa and greater than or equal to 0.25 MPa, the corresponding start-up flushing pressure differential value is b2; when the second preset water pressure range of the third group is less than 0.25 MPa and greater than or equal to 0.15 MPa, the corresponding start-up flushing pressure differential value is b3; when the second preset water pressure range of the fourth group is less than 0.15 MPa and greater than or equal to 0.1 MPa, the corresponding start-up flushing pressure differential value is b4. Among them, b1>b2>b3>b4, b1, b2, b3, and b4 can be fixed values set according to experience.

[0065] In the above embodiment, the controller 104 determines the second preset water pressure range within which the first water pressure reference value falls, and uses the starting flushing differential pressure value corresponding to the second preset water pressure range as the starting flushing differential pressure value corresponding to the first water pressure reference value. Based on the correspondence between the second preset water pressure range and the starting flushing differential pressure value, the corresponding starting flushing differential pressure value can be accurately obtained under different water pressures.

[0066] In one embodiment, the controller 104 is specifically configured to control the flushing device to flush the filter element when the second comparison result is that the actual pressure difference value is not less than the start-up flushing pressure difference value.

[0067] The actual pressure difference value can be obtained based on the initial water pressure value and the second water pressure reference value. Specifically, the actual pressure difference value is equal to the second water pressure reference value minus the initial water pressure value.

[0068] The second comparison result includes two cases, one case is that the actual pressure difference value is not less than the start-up flushing pressure difference value, and the other case is that the actual pressure difference value is less than the start-up flushing pressure difference value.

[0069] In the above embodiment, when the actual pressure difference value is not less than the start-up flushing pressure difference value, the controller 104 sends a control instruction to the flushing device to control the flushing device to flush the filter element. This can more accurately determine whether the filter element flushing function needs to be started, thereby achieving a more accurate and intelligent start-up flushing function, reducing water resource waste, and extending the service life of the filter element.

[0070] Based on this, in one embodiment, Figure 3 As shown, a water purifier control method is provided, comprising:

[0071] Step 302: Obtain the water pressure value at the water inlet.

[0072] The water pressure value may be the pressure value of water flowing through the water inlet end of the filter element. A detection device may be provided at the water inlet end of the filter element to detect the pressure value of water flowing through the water inlet end of the filter element. Specifically, the detection device may be a pressure sensor, which may be provided on a water branch line of the raw water inlet.

[0073] Step 304, based on the water pressure value, obtain a water pressure reference value; the water pressure reference value includes a first water pressure reference value and a second water pressure reference value; the first water pressure reference value is the average value of the water pressure values detected during the first preset time when no water is taken; the second water pressure reference value is the average value of the water pressure values detected during the second preset time during the water taking process.

[0074] The water pressure value includes the water pressure value detected when no water is drawn and the water pressure value detected when water is drawn. A water pressure reference value is obtained based on the water pressure value detected by the detection device. The water pressure reference value may include a first water pressure reference value and a second water pressure reference value. The first water pressure reference value and the second water pressure reference value are both average values. The first water pressure reference value may be the average value of the water pressure values detected during the first preset time period when no water is drawn from the faucet, that is, the average value of the water pressure values detected during the first preset time period before water is drawn from the faucet.

[0075] For example, the first preset duration and the second preset duration may be empirical values. The first preset duration may be equal to the second preset duration. Specifically, the first preset duration and the second preset duration may be set based on actual conditions, and the present invention is not limited thereto.

[0076] Step 306: Obtain a flushing start water pressure value based on the first water pressure reference value.

[0077] The flushing start water pressure value is a water pressure value that triggers the flushing function to start.

[0078] Step 308: Compare the second water pressure reference value with the start-up flushing water pressure value to obtain a first comparison result.

[0079] The second water pressure reference value is the average value of the water pressure values detected during the second preset time period during the water collection process. The first comparison result includes two situations: one situation where the second water pressure reference value is not less than the start-up flushing water pressure value, and the other situation where the second water pressure reference value is less than the start-up flushing water pressure value.

[0080] Step 310: Control the flushing of the filter element according to the first comparison result.

[0081] In the above-mentioned water purifier control method, based on the detected water pressure value, the first water pressure reference value and the second water pressure reference value are obtained, and the start-up flushing water pressure value is obtained through the first water pressure reference value before water is taken. According to the second water pressure reference value and the start-up flushing water pressure value during the water taking process, the flushing of the filter element is more accurately controlled under different water pressures, avoiding the occurrence of situations such as failure to flush in time or waste of water during flushing, thereby extending the service life of the filter element.

[0082] In one embodiment, step 304 includes:

[0083] Step 3042: Obtain the corresponding relationship between the first preset water pressure range and the flushing start water pressure value.

[0084] Step 3044: Determine the first preset water pressure range within which the first water pressure reference value falls, and use the starting flushing water pressure value corresponding to the first preset water pressure range as the starting flushing water pressure value corresponding to the first water pressure reference value.

[0085] The controller pre-stores a plurality of corresponding relationships between the first preset water pressure ranges and the start-up flushing water pressure values. Specifically, the greater the pressure value in the first preset water pressure range, the greater the corresponding start-up flushing pressure value.

[0086] In the above embodiment, the controller 104 determines the first preset water pressure range within which the first water pressure reference value falls, and uses the starting flush water pressure value corresponding to the first preset water pressure range as the starting flush water pressure value corresponding to the first water pressure reference value. Based on the correspondence between the first preset water pressure range and the starting flush water pressure value, the corresponding starting flush water pressure value can be accurately obtained under different water pressures.

[0087] In one embodiment, step 310 includes:

[0088] Step 3102: When the first comparison result is that the second water pressure reference value is not less than the start-up flushing water pressure value, control the filter element to be flushed.

[0089] Among them, the first comparison result includes two situations, one situation is that the second water pressure reference value is not less than the starting flushing water pressure value, and the other situation is that the second water pressure reference value is less than the starting flushing water pressure value.

[0090] In the above embodiment, when the second water pressure reference value is not less than the start-up flushing water pressure value, the filter element is controlled to be flushed, which can more accurately determine whether the filter element flushing function needs to be started, thereby realizing a more accurate and intelligent start-up flushing function, reducing the waste of water resources, and extending the service life of the filter element.

[0091] In one embodiment, reference Figure 4, shows another water purifier control method, including:

[0092] Step 402: Obtain a flushing start-up pressure difference value based on the first water pressure reference value.

[0093] Step 404 , obtaining an initial water pressure value; the initial water pressure value is an average value of the water pressure values detected during the second preset time period when water extraction is started.

[0094] The initial water pressure value may be the average value of the water pressure values detected during the second preset time period when water extraction is started, that is, the average value of the initial water pressure values detected during the second preset time period during the water extraction process.

[0095] Exemplarily, the first preset time length and the second preset time length can be set according to experience values.

[0096] Step 406: Determine an actual pressure difference value according to the initial water pressure value and the second water pressure reference value.

[0097] The actual pressure difference value may be the difference between the second water pressure reference value and the initial water pressure value.

[0098] Step 408: Compare the actual pressure difference value with the start-up flushing pressure difference value to obtain a second comparison result.

[0099] The second comparison result includes two situations: one situation is that the actual pressure difference value is not less than the start-up flushing pressure difference value; the other situation is that the actual pressure difference value is less than the start-up flushing pressure difference value.

[0100] Step 410: Control flushing of the filter element according to the second comparison result.

[0101] In the above embodiment, based on the detected water pressure value, the first water pressure reference value, the initial water pressure value and the second water pressure reference value are obtained, and the starting flushing pressure difference value is obtained through the first water pressure reference value before water is taken. The actual pressure difference value is determined according to the initial water pressure value and the second water pressure reference value. Based on the actual pressure difference value and the starting flushing pressure difference value, it is possible to more accurately determine whether it is necessary to start flushing of the filter element under different water pressures, thereby avoiding the occurrence of situations such as failure to flush in time or waste of water in flushing, thereby extending the service life of the filter element.

[0102] In one embodiment, step 402 includes:

[0103] Step 4022: Obtain the corresponding relationship between the second preset water pressure range and the start-up flushing pressure difference value.

[0104] Step 4024: Determine the second preset water pressure range within which the first water pressure reference value falls, and use the starting flushing pressure difference value corresponding to the second preset water pressure range as the starting flushing pressure difference value corresponding to the first water pressure reference value.

[0105] A plurality of corresponding relationships between the second preset water pressure ranges and the start-up flushing pressure differential values may be pre-stored. Specifically, the greater the pressure value in the second preset water pressure range, the greater the corresponding start-up flushing pressure differential value.

[0106] In the above embodiment, by determining the second preset water pressure range within which the first water pressure reference value falls, the starting flushing differential pressure value corresponding to the second preset water pressure range is used as the starting flushing differential pressure value corresponding to the first water pressure reference value. Based on the corresponding relationship between the second preset water pressure range and the starting flushing differential pressure value, the corresponding starting flushing differential pressure value can be accurately obtained under different water pressures.

[0107] In one embodiment, step 410 includes:

[0108] Step 4102: When the second comparison result is that the actual pressure difference value is not less than the start-up flushing pressure difference value, control the filter element to be flushed.

[0109] In the above embodiment, when the actual pressure difference value is not less than the start-up flushing pressure difference value, the filter element is controlled to be flushed, which can more accurately determine whether the filter element flushing function needs to be started, thereby realizing a more accurate and intelligent start-up flushing function, reducing the waste of water resources, and extending the service life of the filter element.

[0110] In order to better understand the complete process of water purifier control in the embodiment of the present invention, a complete example is used to illustrate. Figure 5 , shows a schematic flow chart of water purifier control in another embodiment, including the following steps:

[0111] Step 502: Obtain the water pressure value at the water inlet.

[0112] Step 504: Obtain a water pressure reference value based on the water pressure value.

[0113] Specifically, the water pressure reference value includes a first water pressure reference value and a second water pressure reference value.

[0114] Step 506: Obtain the corresponding relationship between the first preset water pressure range and the flushing start water pressure value.

[0115] Step 508 , determining the first preset water pressure range that the first water pressure reference value falls within, and using the starting flushing water pressure value corresponding to the first preset water pressure range as the starting flushing water pressure value corresponding to the first water pressure reference value.

[0116] Step 510: Obtain a flushing start water pressure value according to a first water pressure reference value.

[0117] Step 512: Compare the second water pressure reference value with the start-up flushing water pressure value. If the second water pressure reference value is not less than the start-up flushing water pressure value, control the filter element to be flushed.

[0118] Step 514, obtaining a corresponding relationship between the second preset water pressure range and the start-up flushing pressure difference value;

[0119] Step 516: Determine the second preset water pressure range that the first water pressure reference value falls into, and use the start-up flushing pressure difference value corresponding to the second preset water pressure range as the start-up flushing pressure difference value corresponding to the first water pressure reference value.

[0120] Step 518: Obtain an initial water pressure value; determine an actual pressure difference value based on the initial water pressure value and the second water pressure reference value.

[0121] Specifically, the initial water pressure value is the average value of the water pressure values detected during the second preset time period when water extraction is started;

[0122] Step 520: Compare the actual pressure difference value with the start-up flushing pressure difference value. If the actual pressure difference value is not less than the start-up flushing pressure difference value, control the filter element to be flushed.

[0123] In this embodiment, based on the detected water pressure value, the first water pressure reference value and the second water pressure reference value are obtained. The starting flushing water pressure value is obtained through the first water pressure reference value before water is taken. According to the second water pressure reference value and the starting flushing water pressure value during the water taking process, the flushing device is more accurately controlled to flush the filter element under different water pressures, avoiding the occurrence of failure to flush in time or waste of water in flushing, thereby extending the service life of the filter element.

[0124] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0125] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 6 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store the water pressure value detected by the detection device. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a water purifier control method is implemented.

[0126] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0127] In one embodiment, a computer device is provided, which can be a controller in a water purifier, including a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the steps of the water purifier control method of the above embodiments are implemented.

[0128] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the water purifier control method of each of the above embodiments are implemented.

[0129] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions.

[0130] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be, but are not limited to, a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, and the like.

[0131] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0132] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A water purifier, characterized in that: The water purifier comprises: A detection device, provided at the water inlet end of the filter element, for detecting the water pressure value at the water inlet end; The controller is configured to obtain a water pressure reference value based on the water pressure value detected by the detection device, the water pressure reference value including a first water pressure reference value and a second water pressure reference value; obtain a start-up flushing water pressure value based on the first water pressure reference value; compare the second water pressure reference value with the start-up flushing water pressure value to obtain a first comparison result; and control the flushing device to flush the filter element based on the first comparison result; the first water pressure reference value is an average value of the water pressure values detected during a first preset time period when no water is drawn; the second water pressure reference value is an average value of the water pressure values detected during a second preset time period during the water drawing process; A flushing device is used to flush the filter element in response to a control instruction of the controller.

2. The water purifier according to claim 1, characterized in that: The controller is specifically used to obtain the correspondence between the first preset water pressure range and the starting flushing water pressure value; determine the first preset water pressure range in which the first water pressure reference value falls, and use the starting flushing water pressure value corresponding to the first preset water pressure range as the starting flushing water pressure value corresponding to the first water pressure reference value.

3. The water purifier according to claim 1, characterized in that: The controller is specifically configured to control the flushing device to flush the filter element when the first comparison result is that the second water pressure reference value is not less than the start-up flushing water pressure value.

4. The water purifier according to claim 1, characterized in that: The controller is further configured to obtain a flushing start differential pressure value based on the first water pressure reference value; obtain an initial water pressure value, and determine an actual differential pressure value based on the initial water pressure value and the second water pressure reference value; The actual pressure difference value is compared with the starting flushing pressure difference value to obtain a second comparison result; according to the second comparison result, the flushing device is controlled to flush the filter element; the initial water pressure value is the average value of the water pressure values detected during the second preset time when water intake is started.

5. The water purifier according to claim 4, characterized in that: The controller is specifically used to obtain the correspondence between the second preset water pressure range and the starting flushing pressure difference value; determine the second preset water pressure range in which the first water pressure reference value falls, and use the starting flushing pressure difference value corresponding to the second preset water pressure range as the starting flushing pressure difference value corresponding to the first water pressure reference value.

6. The water purifier according to claim 4, characterized in that: The controller is specifically configured to control the flushing device to flush the filter element when the second comparison result is that the actual pressure difference value is not less than the start-up flushing pressure difference value.

7. A water purifier control method, characterized in that: include: Get the water pressure value at the water inlet; Based on the water pressure value, obtaining a water pressure reference value; The water pressure reference value includes a first water pressure reference value and a second water pressure reference value; The first water pressure reference value is the average value of the water pressure values detected during the first preset time period when no water is taken out; the second water pressure reference value is the average value of the water pressure values detected during the second preset time period during the water taking process; Obtaining a start-up flushing water pressure value according to the first water pressure reference value; comparing the second water pressure reference value with the start-up flushing water pressure value to obtain a first comparison result; According to the first comparison result, the filter element is controlled to be flushed.

8. The method according to claim 7, characterized in that The step of obtaining a flushing start water pressure value according to the first water pressure reference value includes: Obtaining a correspondence between a first preset water pressure range and a flushing start water pressure value; Determine a first preset water pressure range within which the first water pressure reference value falls, and use a starting flushing water pressure value corresponding to the first preset water pressure range within which the first water pressure reference value falls as a starting flushing water pressure value corresponding to the first water pressure reference value.

9. The method according to claim 7, characterized in that The controlling the flushing of the filter element according to the first comparison result includes: When the first comparison result is that the second water pressure reference value is not less than the start-up flushing water pressure value, the filter element is controlled to be flushed.

10. The method according to claim 7, characterized in that The method further comprises: Obtaining a start-up flushing pressure difference value according to the first water pressure reference value; Obtaining an initial water pressure value; the initial water pressure value is the average value of the water pressure values detected during the second preset time period when water extraction is started; determining an actual pressure difference value according to the initial water pressure value and the second water pressure reference value; Comparing the actual pressure difference value with the start-up flushing pressure difference value to obtain a second comparison result; According to the second comparison result, the filter element is controlled to be flushed.

11. The method according to claim 10, characterized in that The step of obtaining a start-up flushing pressure difference value according to the first water pressure reference value includes: Obtaining a corresponding relationship between a second preset water pressure range and a start-up flushing pressure difference value; Determine the second preset water pressure range within which the first water pressure reference value falls, and use the starting flushing pressure difference value corresponding to the second preset water pressure range as the starting flushing pressure difference value corresponding to the first water pressure reference value.

12. The method according to claim 10, characterized in that The step of controlling the filter element to be flushed according to the second comparison result includes: When the second comparison result is that the actual pressure difference value is not less than the start-up flushing pressure difference value, the filter element is controlled to be flushed.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the water purifier control method according to any one of claims 7 to 12 are implemented.

14. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the water purifier control method according to any one of claims 7 to 12 are implemented.

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