Filter element service life monitoring method, water purification system and water purification equipment

Abstract

The invention relates to a filter element service life monitoring method, a water purification system and water purification equipment, the water purification system comprises a filter element, a water pump and a flow meter, the water pump is arranged on a water inlet branch or a water outlet branch of the filter element, the flow meter is arranged on the water inlet branch or the water outlet branch of the filter element, and the method comprises the steps that the pulse number collected by the flow meter is obtained; identifying the operation state of the flowmeter according to the pulse number; if the running state of the flowmeter is a normal state, obtaining water passing parameters of the filter element according to the pulse number, and calculating the service life percentage of the filter element according to the water passing parameters; if the running state of the flowmeter is an abnormal state, calculating the life percentage of the filter element according to the running time of the water pump. The real-time operation state of the flowmeter is determined according to the pulse number of the flowmeter, when the flowmeter is in the abnormal state, the calculation mode of the filter element life percentage is switched, and it can be guaranteed that the water purification system can accurately show the filter element life state in various scenes.

Description

Technical Field

[0001] The present application relates to the technical field of water purification systems, and in particular to a filter element life monitoring method, a water purification system, and water purification equipment. Background Art

[0002] As people's living standards continue to improve, their requirements for drinking water are also increasing. Water purifiers have become one of the basic appliances in people's homes. The filter element is the core material for purifying water quality and needs to be replaced on time to ensure excellent filtering effects.

[0003] Existing methods for monitoring the life of water purifier filter cartridges often only calculate the percentage of filter cartridge life by monitoring the amount of water flowing through the filter cartridge. When the water flow monitoring sensor is abnormally damaged, the filter cartridge life cannot be reflected in real time, and the filter cartridge life percentage may stagnate or jump, resulting in users being unable to replace the filter cartridge in real time, affecting the user experience of the water purifier product. Summary of the Invention

[0004] Based on this, it is necessary to provide a filter element life monitoring method, water purification system and water purification equipment that can continuously and accurately identify the filter element life percentage in a variety of scenarios to address the above technical problems.

[0005] In a first aspect, the present application provides a filter element life monitoring method, which is applied to a water purification system, wherein the water purification system includes a filter element, a water pump, and a flow meter, wherein the water pump is arranged in the water inlet branch or the water outlet branch of the filter element, and the flow meter is arranged in the water inlet branch or the water outlet branch of the filter element, and the method includes:

[0006] Obtaining the number of pulses collected by the flow meter;

[0007] identifying an operating state of the flow meter according to the number of pulses;

[0008] If the flow meter is in a normal operating state, obtaining the water flow parameter of the filter element according to the number of pulses, and calculating the filter element life percentage according to the water flow parameter;

[0009] If the operating state of the flow meter is abnormal, the filter element life percentage is calculated according to the operating time of the water pump.

[0010] In one embodiment, identifying the operating status of the flow meter according to the number of pulses includes:

[0011] Obtaining an abnormal point in the number of pulses within the state detection time, wherein the abnormal point in the number of pulses is a time period;

[0012] If the number of abnormal pulse number points is greater than or equal to a first threshold, determining that the operating state of the flow meter is an abnormal state;

[0013] If the number of abnormal pulse quantity points is less than the first threshold, it is determined that the operating state of the flow meter is normal.

[0014] In one embodiment, obtaining the abnormal point of the number of pulses within the state detection time includes:

[0015] If the number of pulses collected by the flow meter within a unit time is less than a second threshold, the unit time is defined as a pulse number abnormal point, wherein the unit time is less than the state detection time and the unit time belongs to the state detection time.

[0016] In one embodiment, the water flow parameters include water flow rate and water flow rate; and the calculating the filter element life percentage based on the water flow parameters includes:

[0017] determining a target conversion ratio according to the water flow rate;

[0018] dividing the maximum water flow rate of the filter element into a plurality of flow intervals according to the target conversion ratio;

[0019] The filter element life percentage is calculated according to the flow rate interval to which the water flow rate belongs.

[0020] In one embodiment, determining the target conversion ratio according to the water flow rate includes:

[0021] Calculating the decay rate of the water flow rate within a preset time;

[0022] If the decay rate is less than a preset decay rate threshold, increasing the reference conversion ratio to obtain the target conversion ratio;

[0023] If the decay rate is greater than a preset time-speed threshold, reducing the reference conversion ratio to obtain the target conversion ratio;

[0024] If the decay speed is equal to a preset time speed threshold, the reference conversion ratio is determined as the target conversion ratio.

[0025] In one embodiment, the calculating the filter element life percentage based on the running time of the water pump includes:

[0026] Calculating the accumulated water flow according to the operating time;

[0027] The filter element life percentage is calculated according to the flow range to which the cumulative water flow belongs.

[0028] In one embodiment, the water purification system further includes a display panel, and the method further includes:

[0029] The filter element life percentage is displayed on the display panel.

[0030] In one embodiment, displaying the filter element life percentage on the display panel includes:

[0031] When the operating state of the flow meter switches from a normal state to an abnormal state, if the difference between the first filter element life percentage and the second filter element life percentage is greater than a preset difference threshold, the first filter element life percentage displayed on the display panel is adjusted to the second filter element life percentage according to a preset percentage decay rate;

[0032] The first filter element life percentage is the filter element life percentage calculated based on the water flow parameters, the second filter element life percentage is the filter element life percentage calculated based on the operating time, and the first filter element life percentage is greater than the second filter element life percentage.

[0033] In a second aspect, the present application further provides a water purification system, comprising: a controller, a filter element, a water pump, and a flow meter, wherein the water pump is arranged in the water inlet branch or the water outlet branch of the filter element, and the flow meter is arranged in the water inlet branch or the water outlet branch of the filter element; the controller is connected to the water pump and the flow meter respectively;

[0034] The controller is used to implement the steps of the filter element life monitoring method described in the first aspect.

[0035] In a third aspect, the present application also provides a water purification device, including the water purification system described in the second aspect.

[0036] In summary, the present application proposes a filter element life monitoring method, a water purification system and a water purification device. The water purification system includes a filter element, a water pump and a flow meter. The water pump is arranged in the water inlet branch or the water outlet branch of the filter element, and the flow meter is arranged in the water inlet branch or the water outlet branch of the filter element. The method includes: obtaining the number of pulses collected by the flow meter; identifying the operating status of the flow meter according to the number of pulses; if the operating status of the flow meter is normal, obtaining the water flow parameters of the filter element according to the number of pulses, and calculating the filter element life percentage according to the water flow parameters; if the operating status of the flow meter is abnormal, calculating the filter element life percentage according to the running time of the water pump. The present application determines the real-time operating status of the flow meter by the number of pulses of the flow meter. When the flow meter is in an abnormal state, the calculation method of the filter element life percentage is switched to ensure that the water purification system can accurately display the life status of the filter element in a variety of scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural block diagram of a water purification device in one embodiment;

[0038] Figure 2Schematic diagram of the structural connection of a water purification system in one embodiment;

[0039] Figure 3 Schematic diagram of a flow chart of a filter element life monitoring method in one embodiment;

[0040] Figure 4 A schematic flow chart of steps for determining the operating status of a flow meter in one embodiment;

[0041] Figure 5 A schematic flow chart of the steps for calculating the filter element life percentage based on water flow parameters collected by a flow meter in one embodiment;

[0042] Figure 6 A schematic flow chart of the steps for calculating the filter element life percentage based on water flow parameters collected by a flow meter in another embodiment;

[0043] Figure 7 is a structural block diagram of a filter element life monitoring device in one embodiment;

[0044] Figure 8 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0046] The present application embodiment provides a water purification system, such as Figure 1 As shown, the water purification system includes a controller 110, a filter element 120, a water pump 130 and a flow meter 140, wherein the water pump 130 is arranged on the water inlet branch or the water outlet branch of the filter element 120, and the flow meter 140 is arranged on the water inlet branch or the water outlet branch of the filter element 120, and the controller 110 is connected to the water pump 130 and the flow meter 140 respectively.

[0047] In this embodiment, the controller 110 can be the whole machine controller 110 of the water purification equipment, or it can be a controller 110 configured separately for the life monitoring of the filter element 120. This embodiment does not limit the specific type of the controller 110 and can be set according to the needs of the actual application scenario.

[0048] Filter element 120 can be a resin filter element, ultrafiltration membrane filter element, or reverse osmosis membrane filter element, and is a filter element with a certain service life used in water purification equipment. In some embodiments, the filter element can also be a pre-filter element or post-filter element of a type such as a PP cotton filter element, an activated carbon filter element, or a KDF (copper-zinc alloy) filter element. It should be noted that the filter element in this embodiment generally refers to the material, device, or equipment used to purify and filter water in a water purification system. The specific filter element type is determined based on the actual application scenario.

[0049] The water pump 130 can be a circulation pump, a booster pump, a self-priming pump, or a diaphragm pump, etc., used to power the water flow in the water pipeline of the water purification system. The specific type of water pump can be determined based on the actual type of filter element in the actual application scenario. For example, if the filter element is a reverse osmosis membrane filter element, the water pump type is a booster pump installed at the water inlet of the reverse osmosis membrane filter element.

[0050] The flow meter 140 can be a device, circuit, or component in a water purification system that can monitor the flow rate of water in a water pipe. This embodiment does not limit the specific type of flow meter. An appropriate flow meter can be configured for the water purification system according to the needs of the actual application scenario to monitor the parameters of the water flow through the filter element. The water flow parameters include but are not limited to flow rate and flow velocity. For example, the flow meter can be an electromagnetic flow meter, an ultrasonic flow meter, an orifice flow meter, or a flow sensor.

[0051] In this embodiment, the arrangement relationship of the water pump, flow meter and filter element can be as follows: Figure 2 As shown. Figure 2 In part (A), the water pump 1 and the flow meter 1 are both set in the water outlet branch of the filter element 1. Figure 2 In part (B), the water pump 2 and flow meter 2 are both set in the water inlet branch of the filter element 1. Figure 2 In part (C), the water pump 3 is set on the water inlet branch of the filter element 3, and the flow meter 3 is set on the water outlet branch of the filter element 3. Figure 2 In part (D), the water pump 4 is arranged on the water outlet branch of the filter element 4 , and the flow meter 4 is arranged on the water inlet branch of the filter element 4 .

[0052] It should be noted that the water purification system provided in this embodiment includes at least one water pump arranged on the water inlet branch or the water outlet branch of the filter element, and at least one flow meter arranged on the water inlet branch or the water outlet branch of the filter element. In a feasible embodiment, water pumps and / or flow meters can also be respectively arranged on the water inlet branch and the water outlet branch of the filter element to ensure that the water inlet parameters and the water outlet parameters of the filter element can be accurately collected. It should be noted that the setting relationship between the water pump, the flow meter and the filter element can be determined according to the type of filter element in the actual application scenario and the functions to be achieved by the water purification system. Figure 2 The examples are for illustration only and do not limit the setting relationship between the water pump, flow meter and filter element.

[0053] In one embodiment, the water purification system provided in this embodiment further includes a display panel, which may be a liquid crystal display or other type of display screen. The specific type of display panel is determined by the actual type of water purification equipment in the actual application scenario. The display panel is used to display real-time operating information and parameter information of the water purification system. The real-time operating information includes the water purification system mode, such as water production mode and self-cleaning mode. The parameter information includes the filter life percentage, water quality TDS value, and drinking water volume.

[0054] In one embodiment, Figure 3 As shown, a filter element life monitoring method is provided, which is applied to Figure 1 The water purification system in the example is used to illustrate, which includes the following steps:

[0055] S301, obtaining the number of pulses collected by the flow meter.

[0056] In this embodiment, when the liquid in the water pipe of the water purification system passes through the flow meter, the flow meter generates a corresponding pulse signal based on the detected liquid. Each pulse signal represents the amount of fluid passing through the flow meter over a period of time, that is, the liquid volume or liquid mass. In actual application, the number of pulses collected by the flow meter can be converted into the volume of fluid passing through the corresponding water pipe area within a certain period of time. For example, the number of pulses = the volume of fluid passing through the water pipe area per unit time / the volume of fluid represented by each pulse number, where the volume of fluid represented by each pulse number can be determined based on the model and setting location of the flow meter.

[0057] It should be noted that the number of pulses collected by the flow meter in this embodiment can be converted into water flow parameters passing through the filter element according to a preset conversion formula, wherein the water flow parameters include flow rate and flow velocity.

[0058] S302: Identify the operating status of the flow meter according to the number of pulses.

[0059] In this embodiment, within a certain time range, the number of pulses that the flow meter should collect can be estimated based on the type and installation location of the flow meter. When the number of pulses collected by the flow meter differs greatly from the estimated number of pulses, it can be determined that the flow meter is in an abnormal state.

[0060] During actual application, the water purification system needs to display the life status of the filter element, that is, the filter element life percentage, on the display panel. In this embodiment, the real-time life percentage of the filter element is displayed on the display panel, and the user can determine whether the filter element needs to be replaced based on the filter element life percentage. It should be noted that some regenerable filter elements also have a decaying filter element life percentage, such as resin filter elements. Whether the filter element is in a regenerated state does not affect the calculation of the filter element life percentage. There is a correlation between the filter element life percentage and the water flow data through the filter element. The greater the water flow through the filter element, the lower the filter element life percentage. Each filter element has a maximum water flow rate. When the total water flow through the filter element is greater than or equal to the maximum water flow rate, the filter element life percentage is reduced to 0.

[0061] In this embodiment, the calculation of the filter element life percentage is associated with the operating state of the flow meter, and the calculation method of the filter element life percentage is different depending on the operating state of the flow meter.

[0062] In the prior art, a fixed method is often used to calculate the filter element life percentage. This fixed calculation method will have a great impact on the calculation accuracy of the filter element life percentage. When the corresponding device is damaged, it is easy to be unable to accurately and effectively obtain the accurate filter element life status of the filter element, thereby causing users to fail to replace the filter element in a timely manner.

[0063] This embodiment circumvents the above problem by providing at least two methods for calculating the percentage of filter element life.

[0064] S303: If the flow meter is in a normal operating state, obtain the water flow parameter of the filter element according to the number of pulses, and calculate the filter element life percentage according to the water flow parameter.

[0065] In this embodiment, when the flow meter is in a normal operating state, indicating that the flow meter can be used normally, the water flow parameter of the filter element is converted based on the number of pulses collected by the flow meter, and the filter element life percentage is calculated based on the water flow parameter.

[0066] S304: If the operating state of the flow meter is abnormal, the filter element life percentage is calculated according to the operating time of the water pump.

[0067] In this embodiment, when the operating status of the flow meter is abnormal, it means that the flow meter cannot be used normally. At this time, the water flow parameters of the filter element are converted according to the total operating time of the water pump after the current filter element is installed, and the filter element life percentage is calculated based on the water flow parameters.

[0068] In a feasible embodiment, each time the filter element is replaced, the system will automatically clear the running time continuously recorded by the water pump, so that when the water pump running time data is needed, the water flow parameters of the corresponding filter element can be directly converted by obtaining the running time of the water pump.

[0069] It should be noted that the water purification system's controller will immediately switch the filter life percentage calculation method upon detecting an abnormal flow meter operation, effectively calculating the filter life percentage using the water pump's operating parameters. When the flow meter returns to normal operation, the controller will also switch the filter life percentage calculation method to the same method as step S303. In other words, in this embodiment, when the flow meter is operating normally, the water flow parameters collected by the flow meter are preferentially used as the variables for calculating the filter life percentage.

[0070] In summary, this embodiment provides a filter cartridge life monitoring method that can reasonably determine the service life of a filter cartridge without increasing equipment costs, and can visually inform the user of the filter cartridge usage status, accurately and promptly notifying the user to replace the filter cartridge, ensuring that the water purification system maintains excellent filtration effects, and greatly improving the user experience. Furthermore, the filter cartridge life monitoring method provided in this embodiment switches the calculation method for the filter cartridge life percentage when an abnormality occurs in the flow meter, thereby ensuring the accuracy of the calculation of the filter cartridge life percentage information, ensuring that the user's understanding of the filter cartridge usage status is accurate, and avoiding the problem of incorrect filter cartridge replacement, which leads to excessive filter cartridge consumption.

[0071] In one embodiment, Figure 4 As shown in the figure, the operating status of the flow meter can be identified based on the number of pulses, including:

[0072] S401, obtaining abnormal points of the number of pulses within a state detection time, wherein the abnormal points of the number of pulses are time periods.

[0073] S402: If the number of abnormal pulse points is greater than or equal to a first threshold, determine that the operating state of the flow meter is abnormal.

[0074] S403: If the number of abnormal pulse points is less than a first threshold, determine that the operating state of the flow meter is normal.

[0075] In this embodiment, the primary parameter for determining the flowmeter's operating status is time. If, within a certain period (the status detection time), there are multiple periods of abnormal pulse count (abnormal pulse count points), the flowmeter is determined to have a problem. It should be noted that due to structural issues with the water purification system's pipelines, the liquid flow rate within the pipelines may fluctuate during certain time periods. By determining the number of abnormal pulse count points within the status detection time, this embodiment can accurately identify the flowmeter's operating status, avoiding erroneous judgments of a flowmeter failure due to liquid flow fluctuations.

[0076] In actual applications, the controller can also detect flowmeter anomalies based on the number of pulses. For example, if the number of pulses detected by the flowmeter per unit time is less than a preset number, the controller can determine that a flowmeter anomaly has been detected. The controller does not determine that the flowmeter's operating status is abnormal upon the first detection of the flowmeter anomaly. Instead, it determines that the flowmeter's operating status is abnormal when the controller detects an anomaly within a continuous detection cycle for a period of time.

[0077] In one embodiment, obtaining an abnormal point in the number of pulses within the state detection time includes:

[0078] If the number of pulses collected by the flow meter within a unit time is less than a second threshold, the unit time is defined as a pulse number abnormal point, wherein the unit time is less than the state detection time and the unit time belongs to the state detection time.

[0079] In this embodiment, the second threshold is a preset number threshold. When identifying abnormal points in the number of pulses, the state detection time can be first divided into n unit times, where n is a positive integer, and then the number of pulses in each unit time is compared with the second threshold to obtain abnormal points in the number of pulses.

[0080] In this embodiment, there are multiple ways to calculate the filter element life percentage based on the water flow parameters collected by the flow meter. One of the calculation methods is described in detail below. Figure 5 As shown, the water flow parameters include water flow rate and water flow rate. The filter element life percentage is calculated based on the water flow parameters, including:

[0081] S501: Determine a target conversion ratio according to the water flow rate.

[0082] S502: Divide the maximum water flow rate of the filter element into multiple flow intervals according to the target conversion ratio.

[0083] S503, calculating the filter element life percentage according to the flow range to which the water flow belongs.

[0084] In this embodiment, the maximum water flow rate of the filter element is first divided into N flow intervals, where N is the target conversion ratio and is a positive integer. The total water flow rate recorded by the flow meter is then divided by the target conversion ratio to calculate the ratio of the total water flow rate recorded by the flow meter to the maximum water flow rate of the filter element. Alternatively, the ratio of the total water flow rate recorded by the flow meter to the maximum water flow rate of the filter element is determined by determining the flow interval to which the total water flow rate belongs. This ratio is then converted into a percentage of the filter element life. The filter element life percentage decreases as the ratio increases, until it reaches zero.

[0085] In this embodiment, N can be adjusted in real time according to the attenuation of the flow rate to ensure that the reduction in the filter element life percentage is more reasonable. The filter element life percentage calculated in this embodiment is more accurate and can better reflect the actual usage status of the filter element.

[0086] In one embodiment, Figure 6 As shown in FIG, the target conversion ratio is determined according to the water flow rate, including:

[0087] S601, calculating the decay rate of the water flow rate within a preset time.

[0088] S602: If the attenuation speed is less than the preset attenuation speed threshold, increase the reference conversion ratio to obtain a target conversion ratio.

[0089] S603: If the decay speed is greater than the preset time speed threshold, reduce the reference conversion ratio to obtain the target conversion ratio.

[0090] S604: If the decay speed is equal to the preset time speed threshold, the reference conversion ratio is determined as the target conversion ratio.

[0091] In this embodiment, the decay rate of the water flow rate within the preset time is ,in, is the time speed, The water flow rate at the beginning of the preset time, The water flow rate at the end of the preset time. It is the water flow rate within the preset time.

[0092] The corresponding relationship between the target conversion ratio and the attenuation speed can be That is, the faster the decay rate, the smaller the target conversion ratio, and the slower the decay rate, the larger the target conversion ratio. This embodiment effectively improves the calculation accuracy of the filter element life percentage by collecting the decay of the water flow rate through the filter element and determining the target conversion ratio based on the decay. This allows the filter element life percentage displayed on the water purification device to more accurately reflect the usage status of the filter element.

[0093] In one embodiment, calculating the filter element life percentage based on the running time of the water pump includes:

[0094] Calculate the accumulated water flow according to the running time.

[0095] The filter element life percentage is calculated based on the flow range to which the cumulative water flow belongs.

[0096] In this embodiment, the conversion relationship between the running time of the water pump and the cumulative water flow can be determined according to the actual type of the water pump. There are certain differences in the conversion formulas between the running time and the cumulative water flow of different types of water pumps, which are not described here one by one.

[0097] Specifically, every t seconds the water pump runs, the accumulated water flow through the filter element increases by a preset value. By calculating the pump's operating time, the total water flow parameter through the filter element can be estimated. Furthermore, the filter element life percentage can be calculated based on the flow ranges divided according to the target conversion ratio in the aforementioned embodiment.

[0098] In a feasible embodiment, a flow meter can also be used to detect the attenuation of the water flow rate through the filter element, calculate the remaining water flow through the filter element, and thus calculate the filter element life percentage based on the remaining water flow through the filter element. The remaining water flow through the filter element is calculated by subtracting the total water flow collected by the flow meter from the maximum water flow through the filter element.

[0099] In one embodiment, displaying the filter element life percentage on a display panel includes:

[0100] When the operating state of the flow meter switches from a normal state to an abnormal state, if the difference between the first filter element life percentage and the second filter element life percentage is greater than a preset difference threshold, the first filter element life percentage displayed on the display panel is adjusted to the second filter element life percentage according to a preset percentage decay rate;

[0101] The first filter element life percentage is the filter element life percentage calculated based on the water flow parameters, and the second filter element life percentage is the filter element life percentage calculated based on the operating time. The first filter element life percentage is greater than the second filter element life percentage.

[0102] In this embodiment, when the operating state of the flow meter changes and the controller switches the filter element life percentage calculation method, the filter element life percentage displayed on the display panel will be adaptively adjusted based on the first filter element life percentage and the second filter element life percentage calculated by the two previous and subsequent filter element life percentage calculation methods to avoid abnormal jumps in the filter element life percentage displayed on the display panel.

[0103] It should be noted that the preset percentage decay rate can be numerically adjusted based on the requirements of the UI interaction design of the water purification system in the actual application scenario. The preset percentage decay rate can be set to a continuously changing and visible rate.

[0104] In a possible embodiment, if the second filter element life percentage is greater than the first filter element life percentage, and the difference between the second filter element life percentage and the first filter element life percentage is less than a preset threshold, the first filter element life percentage can be maintained unchanged, and after the actual filter element life percentage is reduced to the first filter element life percentage, the filter element life percentage can be continuously reduced according to the corresponding filter element life percentage calculation method.

[0105] If the second filter element life percentage is greater than the first filter element life percentage, and the difference between the second filter element life percentage and the first filter element life percentage is greater than the preset threshold, it can be determined that there is an abnormality in the statistical operating time of the water pump. That is, when the user finds that the filter element life percentage has increased abnormally through the display panel, the filter element life percentage can be calibrated through the display panel of the purification equipment, and the flow meter can be repaired in time to ensure the calculation accuracy of the filter element life percentage.

[0106] In summary, this embodiment provides a filter element life monitoring method, which improves the visualization of filter element life and the accuracy of filter element life detection. According to the flow meter detecting the water flow and the attenuation of the flow rate, the remaining percentage of the filter element life is estimated. When the percentage decreases to 0, it is judged that the life has expired, thereby enhancing the user experience. The filter element life monitoring method provided by this embodiment solves the problem that the remaining percentage of the filter element is only inversely proportional to the water flow, and does not actually display the user's usage. At the same time, the flow meter fault detection is added. When the flow meter detects a fault, the pump running time is switched to calculate the filter element life percentage. When the flow meter returns to normal, the flow meter is continued to calculate the life percentage to ensure that the remaining filter element life percentage can be calculated normally and the filter element life calculation method is adjusted in time according to the flow meter situation, thereby ensuring the accuracy of the filter element life calculation and a good user experience to the greatest extent.

[0107] 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.

[0108] Based on the same inventive concept, embodiments of the present application also provide a filter cartridge life monitoring device for implementing the filter cartridge life monitoring method described above. The solution provided by this device is similar to the solution described in the method described above. Therefore, the specific limitations of one or more filter cartridge life monitoring device embodiments provided below can be found in the limitations of the filter cartridge life monitoring method described above and will not be further elaborated here.

[0109] In one embodiment, Figure 7As shown, a filter element life monitoring device 700 is provided, comprising: an acquisition module 710, an identification module 720, a first calculation module 730 and a second calculation module 740, wherein:

[0110] An acquisition module 710 is used to acquire the number of pulses collected by the flow meter;

[0111] an identification module 720 for identifying the operating state of the flow meter according to the number of pulses;

[0112] The first calculation module 730 is used to obtain the water flow parameter of the filter element according to the number of pulses if the flow meter is in a normal operating state, and calculate the filter element life percentage according to the water flow parameter;

[0113] The second calculation module 740 is configured to calculate the filter element life percentage according to the running time of the water pump if the running state of the flow meter is abnormal.

[0114] In one embodiment, the identification module 720 is specifically used to obtain the abnormal points of the number of pulses within the status detection time, wherein the abnormal points of the number of pulses are time periods; if the number of abnormal points of the number of pulses is greater than or equal to a first threshold, it is determined that the operating state of the flow meter is an abnormal state; if the number of abnormal points of the number of pulses is less than the first threshold, it is determined that the operating state of the flow meter is a normal state.

[0115] In one embodiment, the identification module 720 is specifically used to define the unit time as a pulse number abnormal point if the number of pulses collected by the flow meter in the unit time is less than the second threshold, wherein the unit time is less than the state detection time and the unit time belongs to the state detection time.

[0116] In one embodiment, the first calculation module 730 is specifically used to determine a target conversion ratio based on the water flow rate; divide the maximum water flow rate of the filter element into multiple flow intervals according to the target conversion ratio; and calculate the filter element life percentage based on the flow interval to which the water flow rate belongs.

[0117] In one embodiment, the first calculation module 730 is specifically used to calculate the attenuation rate of the water flow rate within a preset time; if the attenuation rate is less than the preset attenuation rate threshold, the reference conversion ratio is increased to obtain the target conversion ratio; if the attenuation rate is greater than the preset time speed threshold, the reference conversion ratio is decreased to obtain the target conversion ratio; if the attenuation rate is equal to the preset time speed threshold, the reference conversion ratio is determined as the target conversion ratio.

[0118] In one embodiment, the second calculation module 740 is specifically configured to calculate the cumulative water flow according to the operating time; and calculate the filter element life percentage according to the flow range to which the cumulative water flow belongs.

[0119] In one embodiment, the filter element life monitoring device 700 further includes:

[0120] The display module is used to adjust the first filter element life percentage displayed on the display panel to the second filter element life percentage according to a preset percentage attenuation rate when the operating state of the flow meter switches from a normal state to an abnormal state, if the difference between the first filter element life percentage and the second filter element life percentage is greater than a preset difference threshold; wherein the first filter element life percentage is the filter element life percentage calculated based on the water flow parameter, the second filter element life percentage is the filter element life percentage calculated based on the operating time, and the first filter element life percentage is greater than the second filter element life percentage.

[0121] Each module in the filter life monitoring device described above can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in hardware form, or can be stored in a computer device memory in software form, so that the processor can call and execute the corresponding operations of each module.

[0122] In one embodiment, a water purification device is provided, comprising the water purification system in the aforementioned embodiment.

[0123] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 8 As shown. The computer device includes a processor, memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are connected to the system bus via 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 and a computer program. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals via wired or wireless means, and the wireless means can be achieved via Wi-Fi, a mobile cellular network, NFC (near-field communication), or other technologies. When executed by the processor, the computer program implements a filter element life monitoring method. The display unit of the computer device is used to form a visually visible image, and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse.

[0124] Those skilled in the art will understand that Figure 8 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.

[0125] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0126] Step A:

[0127] Step B;

[0128] Step C.

[0129] 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 following steps are implemented:

[0130] Step A:

[0131] Step B;

[0132] Step C.

[0133] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0134] Step A:

[0135] Step B;

[0136] Step C.

[0137] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can 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 can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases 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 processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), data processing logic devices based on quantum computing, and the like.

[0138] 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.

[0139] 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 filter element life monitoring method, characterized in that: Applied to a water purification system, the water purification system comprises a filter element, a water pump and a flow meter, the water pump is arranged at a water inlet branch or a water outlet branch of the filter element, the flow meter is arranged at a water inlet branch or a water outlet branch of the filter element, and the method comprises: Obtaining the number of pulses collected by the flow meter; identifying the operating status of the flow meter according to the number of pulses; If the running state of the flow meter is normal, the water flow parameter of the filter element is obtained according to the number of pulses, and the life percentage of the filter element is calculated according to the water flow parameter; If the operating state of the flow meter is abnormal, the filter element life percentage is calculated according to the operating time of the water pump.

2. The method according to claim 1, characterized in that The step of identifying the operating state of the flow meter according to the number of pulses comprises: Obtaining an abnormal point of the number of pulses within the state detection time, wherein the abnormal point of the number of pulses is a time period; If the number of abnormal points of the pulse quantity is greater than or equal to a first threshold, determining that the operating state of the flow meter is an abnormal state; If the number of abnormal points of the pulse quantity is less than the first threshold, it is determined that the operating state of the flow meter is normal.

3. The method according to claim 2, characterized in that The acquisition of abnormal pulse quantity points within the state detection time includes: If the number of pulses collected by the flow meter within a unit time is less than a second threshold, the unit time is defined as a pulse quantity abnormal point, wherein the unit time is less than the state detection time and the unit time belongs to the state detection time.

4. The method according to claim 1, characterized in that: The water flow parameters include water flow rate and water flow rate; the calculation of the filter element life percentage according to the water flow parameters includes: determining a target conversion ratio according to the water flow rate; Dividing the maximum water flow rate of the filter element into a plurality of flow intervals according to the target conversion ratio; The filter element life percentage is calculated according to the flow interval to which the water flow belongs.

5. The method according to claim 4, characterized in that The step of determining the target conversion ratio according to the water flow rate comprises: Calculating the decay rate of the water flow rate within a preset time; If the decay rate is less than a preset decay rate threshold, increasing the reference conversion ratio to obtain the target conversion ratio; If the decay speed is greater than a preset time speed threshold, the reference conversion ratio is reduced to obtain the target conversion ratio; If the decay speed is equal to the preset time speed threshold, the reference conversion ratio is determined as the target conversion ratio.

6. The method according to claim 4, characterized in that The calculating the filter element life percentage according to the running time of the water pump comprises: Calculating the accumulated water flow according to the operating time; The filter element life percentage is calculated according to the flow interval to which the accumulated water flow belongs.

7. The method according to any one of claims 1 to 6, characterized in that: The water purification system further includes a display panel, and the method further includes: The filter element life percentage is displayed on the display panel.

8. The method according to claim 7, characterized in that The displaying of the filter element life percentage on the display panel includes: When the operation state of the flow meter is switched from a normal state to an abnormal state, if the difference between the first filter element life percentage and the second filter element life percentage is greater than a preset difference threshold, the first filter element life percentage displayed on the display panel is adjusted to the second filter element life percentage according to a preset percentage decay rate; Among them, the first filter element life percentage is the filter element life percentage calculated according to the water flow parameter, the second filter element life percentage is the filter element life percentage calculated according to the operating time, and the first filter element life percentage is greater than the second filter element life percentage.

9. A water purification system, characterized in that: include: A controller, a filter element, a water pump and a flow meter, wherein the water pump is arranged on the water inlet branch or the water outlet branch of the filter element, and the flow meter is arranged on the water inlet branch or the water outlet branch of the filter element; the controller is connected to the water pump and the flow meter respectively; The controller is used to implement the steps of the filter element life monitoring method described in any one of claims 1 to 8.

10. A water purification device, characterized in that: Includes the water purification system as described in claim 9.

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