Water purifier filter cartridge testing methods, systems, water purifiers, equipment and storage media

Abstract

This invention discloses a method, system, water purifier, equipment, and storage medium for testing water purifier filter cartridges. The water purifier includes a variable-power water pump. The filter cartridge testing method includes: acquiring cumulative operating status information of the water purifier; when the cumulative operating status information reaches a preset condition, detecting the flow rate of the filter cartridge at at least one water pump power; and determining the lifespan of the filter cartridge based on the flow rate. During use, because the filter cartridge experiences flow rate decay, and the filter cartridge flow rate can be considered to decrease linearly, when the flow rate of the filter cartridge at at least one water pump power decays to a preset level, it is determined that the filter cartridge has reached its end of clogging. This allows the filter cartridge lifespan detection to incorporate the actual usage of the filter cartridge, improving the accuracy of filter cartridge lifespan detection. This enables users to replace the filter cartridge in a timely manner during water purifier use, reducing the probability of water purifier malfunctions and unsafe water quality, and improving the user experience of using a water purifier.

Description

Technical Field

[0001] This invention relates to the field of smart home appliance technology, and in particular to a method, system, water purifier, equipment and storage medium for testing the filter cartridge of a water purifier. Background Technology

[0002] Currently, the main methods for detecting the lifespan of water purifier filters are: 1) using a built-in timer to calculate natural time; 2) calculating total flow rate based on a fixed flow rate and pump operating time; 3) reminding the user to replace the filter when the accumulated natural time exceeds a certain threshold. However, these methods are inaccurate in detecting the actual lifespan of the filter, reducing the accuracy and efficiency of filter lifespan detection. This makes it difficult for users to replace filters in a timely manner, leading to increased purifier failure rates, unsafe water quality, and ultimately impacting the user experience of the water purifier. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art in which the filter element testing of water purifiers is not based on actual usage conditions, resulting in low accuracy and failure to meet actual usage needs. The present invention provides a filter element testing method, system, water purifier, equipment and storage medium for water purifiers.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This invention provides a method for testing the filter cartridge of a water purifier, the water purifier including a variable power water pump; the filter cartridge testing method includes:

[0006] Obtain the cumulative operating status information of the water purifier;

[0007] When the cumulative working status information reaches the preset condition, the flow rate of the filter element under at least one water pump power is detected;

[0008] The lifespan of the filter element is determined based on its flow rate.

[0009] Preferably, obtaining the cumulative operating status information of the water purifier includes:

[0010] Obtain the cumulative number of times the water purifier has been used; and / or,

[0011] Obtain the cumulative working time of the water purifier.

[0012] Preferably, the step of detecting the flux of the filter element at at least one pump power includes:

[0013] The power of the water pump is adjusted to a first power by using a PWM (Pulse Width Modulation) wave, and the first flow rate of the filter element is detected when the water pump operates at the first power.

[0014] The power of the water pump is adjusted to a second power using a PWM wave, and the second flow rate of the filter element is detected when the water pump operates at the second power.

[0015] Preferably, before the step of determining the lifespan of the filter element based on its flux, the filter element testing method further includes:

[0016] Obtain the first initial flow rate of the filter element when the water pump operates at a first power and the second initial flow rate of the filter element when the water pump operates at a second power;

[0017] The step of determining the lifespan of the filter element based on its flux includes:

[0018] The lifespan of the filter element is determined based on the first initial flux, the second initial flux, the first flux, and the second flux.

[0019] Preferably, the step of determining the lifespan of the filter element based on the first initial flux, the second initial flux, the first flux, and the second flux includes:

[0020] When the first flux is less than the first flux threshold and the second flux is less than the second flux threshold, the filter element is determined to have reached the end of its lifespan.

[0021] The first flux threshold is determined based on the first initial flux; the second flux threshold is determined based on the second initial flux.

[0022] Preferably, the filter element testing method includes:

[0023] When the first flux is greater than the first flux threshold or the second flux is greater than the second flux threshold, the cumulative working status information of the water purifier is reacquired.

[0024] When the cumulative working status information reaches a preset condition, the flow rate of the filter element is detected at at least two water pump powers; the preset condition is determined based on the first flow rate and / or the second flow rate.

[0025] The present invention also provides a filter cartridge testing system for a water purifier, the water purifier including a variable power water pump; the filter cartridge testing system includes:

[0026] The working information acquisition module is used to acquire the cumulative working status information of the water purifier;

[0027] A filter cartridge flow rate detection module is used to detect the flow rate of the filter cartridge at at least one water pump power when the cumulative working status information reaches a preset condition.

[0028] A filter cartridge life determination module is used to determine the life of the filter cartridge based on the flow rate of the filter cartridge.

[0029] Preferably, the working information acquisition module is specifically used to acquire the cumulative number of times the water purifier has been used; and / or,

[0030] The working information acquisition module is specifically used to acquire the cumulative working time of the water purifier.

[0031] Preferably, the filter cartridge flow detection module is specifically used to adjust the power of the water pump to a first power through a PWM wave, and detect the first flow of the filter cartridge when the water pump operates at the first power;

[0032] The filter cartridge flow detection module is specifically used to adjust the power of the water pump to a second power through a PWM wave, and to detect the second flow of the filter cartridge when the water pump is operating at the second power.

[0033] Preferably, the filter cartridge testing system further includes:

[0034] An initial flux acquisition module is used to acquire the first initial flux of the filter element when the water pump operates at a first power and the second initial flux of the filter element when the water pump operates at a second power.

[0035] The filter life determination module is specifically used to determine the life of the filter element based on the first initial flux, the second initial flux, the first flux, and the second flux.

[0036] Preferably, the filter life determination module is further configured to determine that the filter life has expired when the first flux is less than a first flux threshold and the second flux is less than a second flux threshold.

[0037] The first flux threshold is determined based on the first initial flux; the second flux threshold is determined based on the second initial flux.

[0038] Preferably, the filter life determination module is further configured to re-call the working information acquisition module to obtain the cumulative working status information of the water purifier when the first flow rate is greater than the first flow rate threshold or the second flow rate is greater than the second flow rate threshold.

[0039] The filter cartridge flow rate detection module is further configured to detect the flow rate of the filter cartridge at at least two pump power levels when the cumulative working status information reaches a preset condition; the preset condition is determined based on the first flow rate and / or the second flow rate.

[0040] The present invention also provides a water purifier, which includes the filter cartridge detection system of the water purifier as described above.

[0041] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the filter cartridge detection method of the water purifier as described above.

[0042] The present invention also provides a computer-readable medium having computer instructions stored thereon, which, when executed by a processor, implement the filter cartridge detection method for a water purifier as described above.

[0043] The positive and progressive effects of this invention are as follows:

[0044] The cooking operation detection method provided by this invention acquires the cumulative working status information of the water purifier. When the cumulative working status information reaches a preset condition, the flow rate of the filter element under at least one water pump power is detected. The lifespan of the filter element is determined based on the flow rate. During use, the filter element experiences flow rate decay, and the filter element flow rate can be considered to decrease linearly. When the flow rate of the filter element under at least one water pump power decays to a preset level, it is determined that the filter element has reached its end of clogging. This method combines the actual usage of the filter element with the lifespan detection, improving the accuracy of the filter element lifespan detection. This allows users to replace the filter element in a timely manner during the use of the water purifier, reducing the probability of water purifier malfunctions and unsafe water quality, and improving the user experience of using the water purifier. Attached Figure Description

[0045] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0046] Figure 1 This is a schematic diagram of the water purifier in Embodiment 1 of the present invention.

[0047] Figure 2 This is a schematic diagram of the first process of the filter cartridge testing method for a water purifier in Embodiment 1 of the present invention.

[0048] Figure 3 This is a schematic diagram of the second process of the filter cartridge testing method for a water purifier in Embodiment 1 of the present invention.

[0049] Figure 4This is a schematic diagram of the third process of the filter cartridge testing method for a water purifier in Embodiment 1 of the present invention.

[0050] Figure 5 This is a schematic diagram of the filter cartridge detection system of the water purifier in Embodiment 2 of the present invention.

[0051] Figure 6 This is a schematic diagram of the electronic device in Embodiment 4 of the present invention. Detailed Implementation

[0052] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0053] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the document does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0054] It should be understood that the terms "system," "unit," and / or "module" used herein are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0055] As illustrated herein, unless the context clearly indicates otherwise, the words “a,” “an,” “an,” and / or “the” do not specifically refer to the singular and may also include the plural. Generally speaking, the terms “comprising” and “including” only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0056] The definitions used herein, such as the terms “having,” “may have,” “comprising,” or “may include,” indicate the presence of the corresponding function, operation, element, etc., and do not limit the presence of one or more other functions, operations, elements, etc. Furthermore, it should be understood that the terms “comprising” or “having” as used herein indicate the presence of the features, figures, steps, operations, elements, components, or combinations thereof described in the specification, without excluding the presence or addition of one or more other features, figures, steps, operations, elements, components, or combinations thereof.

[0057] Flowcharts are used in this document to illustrate the operations performed by the system according to the embodiments herein. It should be understood that the preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0058] Example 1

[0059] Please refer to Figure 1 This is a structural schematic diagram of the water purifier in this embodiment. Specifically, as shown... Figure 1 As shown, the water purifier includes a pre-filter, a nanofiltration filter, a post-filter, a booster pump, a flow meter, a water outlet switch signal, a one-in-two-out valve, and various control valves. The pre-filter can be a composite filter of PP (a type of man-made chemical fiber) cotton and carbon rods, a composite filter of PP meltblown and granular carbon, a composite filter of pleated PP and carbon rods, etc.

[0060] Please refer to Figure 2 This is a schematic diagram of the first process of the filter cartridge testing method for the water purifier in this embodiment. Specifically, as shown... Figure 2 As shown, the water purifier includes a variable power water pump; specifically, the control method of the booster pump of the water purifier is changed to PWM wave control, which can adjust the output power of the water pump by adjusting the duty cycle; the filter element detection method includes:

[0061] S101. Obtain the cumulative working status information of the water purifier;

[0062] S102. When the cumulative working status information reaches the preset condition, detect the flow rate of the filter element under at least one water pump power.

[0063] S103. Determine the lifespan of the filter element based on its flow rate.

[0064] Specifically, during use, since the filter element experiences flux decay, and the filter element flux can be considered to decrease linearly, when the filter element flux decays to a preset level under at least one water pump power, it is determined that the filter element has reached its end of clogging. This allows the filter element life detection to be combined with the actual usage of the filter element, thus improving the accuracy of filter element life detection.

[0065] Please refer to Figure 3 This is a schematic diagram of the second process of the detection method for the cooking operation in this embodiment. Specifically, as shown... Figure 3 As shown, in one optional implementation, step S101 may include:

[0066] S1011. Obtain the cumulative number of times the water purifier has been used. Preferably, when the cumulative number of times the water purifier has dispensed water reaches 60 and there is no water dispensed, the inlet-outlet valve is switched to port 2 to prepare for testing the filter cartridge flow rate.

[0067] In another alternative implementation, step S101 may include: obtaining the cumulative operating time of the water purifier.

[0068] In this embodiment, step S102 may include:

[0069] S1021. When the cumulative number of times the water purifier works reaches the preset number, the power of the water pump is adjusted to the first power through the PWM wave, and the first flow rate of the filter element under the first power of the water pump is detected.

[0070] S1022. Adjust the water pump power to the second power using a PWM wave, and detect the second flow rate of the filter element when the water pump operates at the second power. Specifically, detect the flow rate of the filter element when the water pump operates at the first power and the second power. The purpose of using two power levels is to eliminate the problem of different inlet water flow rates and improve the accuracy of detection. For example, adjust the pump power to 50% and 100%, and detect the flow rate after 25 seconds of water output.

[0071] In an optional implementation, prior to step S103, the filter cartridge testing method further includes:

[0072] S201. Obtain the first initial flow rate of the filter element when the water pump operates at the first power and the second initial flow rate of the filter element when the water pump operates at the second power.

[0073] Step S103 may include:

[0074] The lifespan of the filter element is determined based on the first initial flux, the second initial flux, the first flux, and the second flux. Specifically, when replacing the filter element for the first time, the inlet-outlet valve can be opened to port 2 to allow water to drain. The pump's PWM wave can be set to 50% and 100% respectively. The flow rate can then be read from the flow meter, and the initial flow rate data can be recorded. Using two power levels is intended to eliminate the possibility of different inlet flow rates.

[0075] Specifically, the steps for determining the filter cartridge lifespan based on the first initial flux, the second initial flux, the first flux, and the second flux include:

[0076] S1031. When the first flow rate is less than the first flow rate threshold and the second flow rate is less than the second flow rate threshold, the filter element's lifespan is determined to have expired. The first flow rate threshold is determined based on the first initial flow rate; the second flow rate threshold is determined based on the second initial flow rate. Preferably, 50% of the first initial flow rate is used as the first flow rate threshold, and 50% of the second initial flow rate is used as the second flow rate threshold. Because the filter element experiences flow rate decay, the filter element reaches its end-of-life due to clogging when the flow rate decays to 50%.

[0077] In addition, filter cartridge testing methods also include:

[0078] When the first flow rate is greater than the first flow rate threshold or the second flow rate is greater than the second flow rate threshold, the cumulative working status information of the water purifier is reacquired.

[0079] When the cumulative working status information reaches the preset conditions, the flow rate of the filter element is detected at at least two water pump powers; the preset conditions are determined based on the first flow rate and / or the second flow rate.

[0080] Specifically, filter cartridges experience flux decay; under the same power pump, the filter cartridge flow rate decreases linearly. Therefore, cyclic testing can be performed to accurately determine the filter cartridge's lifespan. When the first flux is compared to the initial value and is greater than 80% of the initial value, the number of water outputs from the water purifier is recalculated. The above action is repeated when the next number of water outputs reaches 60. When the detected flow rate is greater than 60% but less than 80%, the number of water outputs from the water purifier is recalculated again. Subsequently, the testing cycle can be shortened, and the testing action is repeated when the next number of water outputs reaches 40. When a set of flow rates is detected to be greater than 50% but less than 60%, the testing cycle is shortened again, and the testing action is repeated when the next number of water outputs reaches 20. When the detected flow rate is less than 50% in all cases, the filter cartridge is considered to have reached the end of its lifespan.

[0081] Please refer to Figure 4 This is a schematic diagram of the third process of the fault detection method for the water purifier in this embodiment. Specifically, as shown... Figure 4 As shown, the fault detection method for the water purifier in this embodiment can automatically detect problems such as insufficient raw water, water circuit malfunctions, and expired filter life. It can promptly alert users to problems encountered during use. Specifically, the flow rate of a water purifier typically decreases slowly and does not suddenly drop drastically. Therefore, if a very low flow rate is detected, and the pump power is increased for a period of time, but the flow rate remains far below the previous flow rate or the set flow rate value, it can be determined that there is currently a water shortage or water outage. Furthermore, by using data on the water purifier's flow rate under at least three sets of pump power settings, it is possible to analyze and determine whether the water purifier's flow rate changes linearly. Specifically, the system acquires the first flow rate value of the water purifier at the first pump power, the second flow rate value at the second pump power, the third flow rate value at the third pump power, and the fourth flow rate value at the fourth pump power. Based on the first pump power, second pump power, third pump power, fourth pump power, first flow rate value, second flow rate value, third flow rate value, and fourth flow rate value, it determines whether the water purifier's flow rate changes linearly. If so, a water circuit fault is identified in the water purifier; otherwise, a water shortage is identified in the water purifier. In this embodiment, the first pump power, second pump power, third pump power, and fourth pump power can be 25%, 50%, 75%, and 100%, respectively.

[0082] The filter cartridge testing method for water purifiers provided in this embodiment obtains the cumulative number of water outputs from the water purifier. When the cumulative number of water outputs reaches a preset number, the flow rate of the filter cartridge is detected at 50% and 100% pump power. The lifespan of the filter cartridge is determined based on whether the flow rate drops below 50% of the initial flow rate. This allows the filter cartridge lifespan detection to be combined with the actual usage of the filter cartridge. Furthermore, as the filter cartridge flow rate decreases, the cumulative number of water outputs is shortened, increasing the detection frequency and improving the accuracy of filter cartridge lifespan detection. This enables users to replace the filter cartridge in a timely manner during the use of the water purifier, reducing the probability of water purifier malfunctions and unsafe water quality, and improving the user experience of using the water purifier.

[0083] Example 4

[0084] Please refer to Figure 5 This is a schematic diagram of the filter cartridge detection system of the water purifier in this embodiment. Specifically, as shown... Figure 5 As shown, the water purifier includes a variable power water pump; the filter cartridge detection system includes:

[0085] The working information acquisition module 1 is used to acquire the cumulative working status information of the water purifier;

[0086] The filter cartridge flow rate detection module 2 is used to detect the flow rate of the filter cartridge under at least one water pump power when the cumulative working status information reaches a preset condition.

[0087] The filter life determination module 3 is used to determine the life of the filter element based on the flow rate of the filter element.

[0088] Preferably, the working information acquisition module 1 is specifically used to acquire the cumulative number of times the water purifier has been used; and / or,

[0089] The working information acquisition module 1 is specifically used to acquire the cumulative working time of the water purifier.

[0090] Preferably, the filter cartridge flow detection module 2 is specifically used to adjust the power of the water pump to a first power through a PWM wave, and detect the first flow of the filter cartridge when the water pump operates at the first power;

[0091] The filter cartridge flow detection module 2 is specifically used to adjust the power of the water pump to a second power through a PWM wave, and to detect the second flow of the filter cartridge when the water pump is operating at the second power.

[0092] Preferably, the filter cartridge testing system further includes:

[0093] The initial flux acquisition module 4 is used to acquire the first initial flux of the filter element when the water pump operates at the first power and the second initial flux of the filter element when the water pump operates at the second power.

[0094] The filter life determination module 3 is specifically used to determine the life of the filter element based on the first initial flow rate, the second initial flow rate, the first flow rate, and the second flow rate.

[0095] Preferably, the filter life determination module 3 is further configured to determine that the filter life has expired when the first flux is less than the first flux threshold and the second flux is less than the second flux threshold.

[0096] The first flux threshold is determined based on the first initial flux; the second flux threshold is determined based on the second initial flux.

[0097] Preferably, the filter life determination module 3 is further configured to re-call the working information acquisition module when the first flow rate is greater than the first flow rate threshold or the second flow rate is greater than the second flow rate threshold, so as to obtain the cumulative working status information of the water purifier;

[0098] The filter cartridge flow rate detection module 3 is further configured to detect the flow rate of the filter cartridge at at least two pump powers when the cumulative working status information reaches a preset condition; the preset condition is determined based on the first flow rate and / or the second flow rate.

[0099] For the system embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The system embodiments described above are merely illustrative, wherein the modules described as separate components may or may not be physically separate, and the modules shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this disclosure according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0100] Example 3

[0101] This embodiment provides a water purifier, which includes the filter cartridge detection system of the water purifier in Embodiment 2.

[0102] The water purifier provided in this embodiment utilizes the filter cartridge detection system described above. By combining the actual usage of the filter cartridge in the filter cartridge lifespan detection, the accuracy of filter cartridge lifespan detection is improved. This allows users to replace the filter cartridge in a timely manner during the use of the water purifier, reducing the probability of water purifier malfunctions, unsafe water quality, and other issues, thus improving the user experience of using the water purifier.

[0103] Example 4

[0104] Figure 6 This is a schematic diagram of an electronic device provided in Embodiment 4 of the present invention. The electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the filter cartridge detection method of the water purifier in Embodiment 1. Figure 6 The electronic device 30 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0105] like Figure 6 As shown, the electronic device 30 can be manifested as a general-purpose computing device, such as a server device. The components of the electronic device 30 may include, but are not limited to: at least one processor 31, at least one memory 32, and a bus 33 connecting different system components (including memory 32 and processor 31).

[0106] Bus 33 includes a data bus, an address bus, and a control bus.

[0107] The memory 32 may include volatile memory, such as random access memory (RAM) 321 and / or cache memory 322, and may further include read-only memory (ROM) 323.

[0108] The memory 32 may also include a program / utility 325 having a set (at least one) of program modules 324, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0109] The processor 31 executes various functional applications and data processing by running computer programs stored in the memory 32, such as the filter cartridge detection method of the water purifier in Embodiment 1 of the present invention.

[0110] Electronic device 30 can also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). This communication can be performed via input / output (I / O) interface 35. Furthermore, the model-generated device 30 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public network, such as the Internet) via network adapter 36. As shown, network adapter 36 communicates with other modules of the model-generated device 30 via bus 33. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the model-generated device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0111] It should be noted that although several units / modules or sub-units / modules of the electronic device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0112] Example 5

[0113] This embodiment provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the filter cartridge detection method for a water purifier according to Embodiment 1.

[0114] The readable storage medium may be more specifically adopted, including but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device, or any suitable combination thereof.

[0115] In a possible implementation, the present invention can also be implemented as a program product comprising program code, which, when the program product is run on a terminal device, causes the terminal device to execute the filter cartridge detection method for the water purifier of Embodiment 1.

[0116] The program code for executing the present invention can be written in any combination of one or more programming languages. The program code can be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on a remote device.

[0117] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A method for testing the filter element of a water purifier, characterized in that, The water purifier includes a variable power water pump; the filter cartridge testing method includes: Obtain the cumulative operating status information of the water purifier; When the cumulative working status information reaches the preset condition, the flow rate of the filter element under at least one water pump power is detected; The step of detecting the flux of the filter element at at least one water pump power includes: The power of the water pump is adjusted to a first power using a PWM wave, and the first flow rate of the filter element is detected when the water pump operates at the first power. The power of the water pump is adjusted to a second power using a PWM wave, and the second flow rate of the filter element is detected when the water pump operates at the second power. Obtain the first initial flow rate of the filter element when the water pump operates at a first power and the second initial flow rate of the filter element when the water pump operates at a second power; The lifespan of the filter element is determined based on its flow rate. The step of determining the lifespan of the filter element based on its flux includes: The lifespan of the filter element is determined based on the first initial flux, the second initial flux, the first flux, and the second flux. The step of determining the lifespan of the filter element based on the first initial flux, the second initial flux, the first flux, and the second flux includes: When the first flux is less than the first flux threshold and the second flux is less than the second flux threshold, the filter element is determined to have reached the end of its lifespan. The first flux threshold is determined based on the first initial flux; the second flux threshold is determined based on the second initial flux; when the first flux is greater than the first flux threshold or the second flux is greater than the second flux threshold, the cumulative working status information of the water purifier is reacquired; In this process, the detection cycle between two consecutive cycles is gradually shortened until the lifespan of the filter element is determined to have expired, at which point the detection ends.

2. The filter element testing method as described in claim 1, characterized in that, The process of obtaining the cumulative operating status information of the water purifier includes: Obtain the cumulative number of times the water purifier has been used; and / or, Obtain the cumulative working time of the water purifier.

3. The filter element testing method as described in claim 1, characterized in that, The filter element testing method includes: When the first flux is greater than the first flux threshold or the second flux is greater than the second flux threshold, the cumulative working status information of the water purifier is reacquired. When the cumulative working status information reaches a preset condition, the flow rate of the filter element is detected at at least two water pump powers; the preset condition is determined based on the first flow rate and / or the second flow rate.

4. A filter cartridge testing system for a water purifier, characterized in that, The water purifier includes a variable power water pump; the filter cartridge detection system includes: The working information acquisition module is used to acquire the cumulative working status information of the water purifier; A filter cartridge flow rate detection module is used to detect the flow rate of the filter cartridge at at least one water pump power when the cumulative working status information reaches a preset condition. The filter cartridge flow detection module is used to adjust the power of the water pump to a first power through a PWM wave, and detect the first flow of the filter cartridge when the water pump is working at the first power. The filter cartridge flow detection module is used to adjust the power of the water pump to a second power through a PWM wave, and detect the second flow of the filter cartridge when the water pump is operating at the second power. An initial flux acquisition module is used to acquire the first initial flux of the filter element when the water pump operates at a first power and the second initial flux of the filter element when the water pump operates at a second power. A filter cartridge life determination module is used to determine the life of the filter cartridge based on the flow rate of the filter cartridge. The filter cartridge life determination module is used to determine the life of the filter cartridge based on the first initial flux, the second initial flux, the first flux, and the second flux. The filter cartridge life determination module is also used to determine that the filter cartridge has reached the end of its life when the first flux is less than the first flux threshold and the second flux is less than the second flux threshold. The first flux threshold is determined based on the first initial flux; the second flux threshold is determined based on the second initial flux. The filter life determination module is also used to re-call the working information acquisition module to obtain the cumulative working status information of the water purifier when the first flow rate is greater than the first flow rate threshold or the second flow rate is greater than the second flow rate threshold. In this process, the detection cycle between two consecutive cycles is gradually shortened until the lifespan of the filter element is determined to have expired, at which point the detection ends.

5. A water purifier, characterized in that, The water purifier includes the filter cartridge detection system as described in claim 4.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the filter cartridge detection method for the water purifier as described in any one of claims 1 to 3.

7. A computer-readable medium having computer instructions stored thereon, characterized in that, When executed by a processor, the computer instructions implement the filter cartridge detection method for a water purifier as described in any one of claims 1 to 3.

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