CN114307353A - Filter element expiration reminding method and device and water purifying equipment - Google Patents
Filter element expiration reminding method and device and water purifying equipment Download PDFInfo
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Abstract
The application relates to a filter element expiration reminding method, a filter element expiration reminding device and water purification equipment, wherein the method comprises the steps of obtaining the residual service lives of more than two filter elements of the water purification equipment; judging whether filter elements with residual service lives reduced to the expired residual service life threshold exist in each filter element; when the filter element with the residual service life reduced to the expired residual service life threshold exists, judging whether the filter element with the residual service life reduced to the pre-expired residual service life threshold exists in each filter element; when a filter element with the residual service life reduced to a pre-due residual service life threshold exists, uniformly reminding the filter element due of the filter element with the residual service life reduced to the pre-due residual service life threshold and the filter element with the residual service life reduced to the pre-due residual service life threshold; when the filter element reduced to the pre-expiration residual life threshold value does not exist, the filter element reduced to the expiration residual life threshold value is subjected to filter element expiration reminding, and the filter element expiration reminding is uniformly carried out, so that a user can replace the expired filter element in time, the water purification effect is ensured, meanwhile, the condition that the filter element is frequently replaced in a short period is avoided, and the labor cost is saved.
Description
Technical Field
The application relates to the technical field of water purifying equipment, in particular to a filter element expiration reminding method and device and water purifying equipment.
Background
With the increasing level of economy and the pursuit of higher quality of life, water purification devices are used in more and more households. Wherein, the filter core of water purification unit is the key device of the purifying effect who guarantees output water. However, the filter element of the water purifying device is an easily-consumed product, and has a certain life cycle, and if the filter element exceeding the life cycle is used for purifying water, the conditions that the water production speed is slow, the waste water is increased, and the quality of the purified water is poor will occur, and a user needs to be reminded to replace the filter element in time.
At present, the filter element type of conventional water purifying equipment includes single filter element and multistage filter element, and the multistage filter element that constitutes by more than two types can provide better water purification effect to a certain extent, also uses more extensively. Because the life cycles of each type of filter elements of the multi-stage filter elements are different, the method for judging the residual life of each type of filter element and the threshold value are also provided. In actual use, when one filter element is due for replacement, another filter element may be due for replacement in a short period of time, which may lead to frequent replacement of the filter element by a user in a short period of time. If the water purification unit that needs staff to go to the door and change the filter core, the human cost is higher.
Disclosure of Invention
Based on this, it is necessary to provide a method and a device for reminding expiration of a filter element and a water purification apparatus, aiming at the problem that the frequent replacement of the filter element in a short period leads to high labor cost.
A method for indicating filter element expiration, said method comprising:
acquiring the residual service life of more than two filter elements of the water purifying equipment;
judging whether a filter element with the residual service life reduced to the expired residual service life threshold exists in each filter element;
when the filter element with the residual service life reduced to the expired residual service life threshold exists, judging whether the filter element with the residual service life reduced to the pre-expired residual service life threshold exists in each filter element;
when a filter element with the residual service life reduced to the pre-expiration residual service life threshold exists, uniformly reminding the expiration of the filter element by the filter element with the residual service life reduced to the expiration residual service life threshold and the filter element with the residual service life reduced to the pre-expiration residual service life threshold;
and when no filter element with the residual service life reduced to the pre-expiration residual service life threshold exists, performing filter element expiration reminding on the filter element with the residual service life reduced to the expiration residual service life threshold.
In one embodiment, the pre-expiration remaining life threshold comprises a first pre-expiration remaining life interval; the determining whether there is a filter element in each filter element whose remaining life decreases to the pre-expiration remaining life threshold includes:
and judging whether the filter element with the residual life in the first pre-expiration residual life interval exists in each filter element.
In one embodiment, when there is a filter element with a remaining life reduced to the pre-expired remaining life threshold, the filter element with the remaining life reduced to the expired remaining life threshold and the filter element with the remaining life reduced to the pre-expired remaining life threshold are unified for a filter element expiration reminder, including:
and when the filter element with the residual life in the first pre-expiration residual life interval exists, uniformly reminding the expiration of the filter element by the filter element with the residual life reduced to the expiration residual life threshold value and the filter element in the first pre-expiration residual life interval.
In one embodiment, the pre-expiration remaining life threshold further comprises a second pre-expiration remaining life interval, the second pre-expiration remaining life interval being greater than the first pre-expiration remaining life interval; when there is a filter element with a remaining life reduced to the pre-expiration remaining life threshold, uniformly reminding the expiration of the filter element by the filter element with the remaining life reduced to the expiration remaining life threshold and the filter element with the remaining life reduced to the pre-expiration remaining life threshold, further comprising:
when no filter element with the residual life in the first pre-expiration residual life interval exists, judging whether a filter element with the residual life in the second pre-expiration residual life interval exists in each filter element;
when the filter element with the residual life in the second pre-expiration residual life interval exists, waiting for the residual life of the filter element in the second pre-expiration residual life interval to be in the first pre-expiration residual life interval, and performing filter element expiration reminding together with the filter element with the residual life reduced to the expiration residual life threshold value.
In one embodiment, the obtaining the remaining life of two or more filter elements of the water purifying apparatus includes:
collecting relevant data of each filter element of the water purifying equipment;
and calculating the residual life according to the related data and the corresponding preset threshold value.
In one embodiment, the filter element comprises at least one of an RO membrane, an ultrafiltration membrane, PP wool, a pre-filter and a post-filter.
In one embodiment, the related data includes at least one of a total water passing amount of the filter element, a water passing flow rate of the filter element, a total water making time of the filter element, and a water quality parameter of the filter element, and the corresponding preset threshold includes at least one of a preset maximum water passing amount, a preset water passing flow rate, a preset maximum water making time, and a preset water quality parameter.
In one embodiment, the calculating the remaining life according to the related data and the corresponding preset threshold includes at least one of:
calculating the residual service life of the filter element according to the total water passing amount of the filter element and the preset maximum water passing amount;
calculating the residual service life of the filter element according to the water passing flow rate of the filter element and the preset water passing flow rate;
calculating the residual service life of the filter element according to the total water making time of the filter element and the preset maximum water making time;
and calculating the residual life of the filter element according to the water quality parameter of the filter element and the preset water quality parameter.
In one embodiment, a filter cartridge expiration reminder apparatus is provided, the apparatus comprising:
the filter element service life acquisition module is used for acquiring the residual service lives of more than two filter elements of the water purification equipment;
the filter element life expiration judging module is used for judging whether a filter element with the residual life reduced to an expired residual life threshold exists in each filter element or not, and is also used for judging whether a filter element with the residual life reduced to a pre-expired residual life threshold exists in each filter element when the filter element with the residual life reduced to the expired residual life threshold exists;
the filter element expiration reminding module is used for carrying out filter element expiration reminding on the filter elements with the residual service life reduced to the pre-expiration residual service life threshold and the filter elements with the residual service life reduced to the pre-expiration residual service life threshold in a unified manner when the filter elements with the residual service life reduced to the pre-expiration residual service life threshold exist; and the filter element expiration reminding device is also used for reminding the filter element expiration of the filter element with the residual life reduced to the expired residual life threshold when no filter element with the residual life reduced to the pre-expired residual life threshold exists.
In one embodiment, a water purifying apparatus is provided, which comprises a multi-stage filter element device, a display device and the above-mentioned filter element expiration reminding device, wherein the filter element expiration reminding device is connected with the multi-stage filter element device and the display device.
According to the filter element expiration reminding method and device and the water purifying equipment, the remaining service lives of all levels of filter elements of the water purifying equipment are obtained, when the filter elements are judged to be expired, whether other filter elements to be expired exist or not is judged, if yes, the filter elements are reminded to be expired in a unified mode, a user can replace the expired filter elements in time, the water purifying effect of the water purifying equipment is guaranteed, meanwhile, the situation that the filter elements are replaced frequently in a short period is avoided, and the labor cost is saved.
Drawings
FIG. 1 is a flow chart of a method for reminding filter element expiration in one embodiment;
FIG. 2 is a flow chart of a method for reminding filter element expiration in another embodiment;
FIG. 3 is a flow chart of a method for reminding filter element expiration in another embodiment;
FIG. 4 is a flow chart of a method for reminding filter element expiration in another embodiment;
FIG. 5 is a system diagram of a filter element expiration reminder apparatus in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. The first resistance and the second resistance are both resistances, but they are not the same resistance.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
In one embodiment, a filter element expiration reminding method is provided, and the method can be applied to a water purifying device comprising a multi-stage filter element device. Because the service life of each stage of filter element device of the multi-stage filter element device is possibly different and has a respectively suitable life judgment method, after the service life of a certain filter element is due and the replacement is reminded in the actual use process of the water purifying equipment, another due filter element needs to be replaced in a short period, and the filter element is frequently replaced, so that the labor cost is increased. Therefore, a method for reminding due of filter element is provided for the situation that the filter element is frequently replaced in a short period of time, which can occur in the water purifying device, and the method comprises the following steps as shown in fig. 1:
step 102: and acquiring the residual service life of more than two filter elements of the water purifying equipment.
Wherein, water purification unit includes that multistage filter core device is used for purifying its input water source, makes the water purification and supplies the user to drink. The multistage filter element device comprises more than two filter elements, the types of the filter elements are not unique, the filter elements can comprise RO (reverse osmosis) membranes, ultrafiltration membranes, PP (polypropylene) cotton, pre-filters, post-filters and the like, and the filter elements can also comprise active carbon, descaling cores, energy stones, medical stones, black ceramic carbon and the like.
Specifically, the residual life of the filter element is obtained by collecting relevant data of the filter element and calculating the residual life according to the relevant data and a corresponding preset threshold. The relevant data of the filter element is not unique, and can include total water passing amount of the filter element, water passing flow rate of the filter element, total water making time of the filter element, water quality parameters of the filter element and the like, and the corresponding preset threshold value can also include preset maximum water passing amount, preset water passing flow rate, preset maximum water making time, preset water quality parameters and the like. Specifically, the method of calculating the remaining life according to the related data and the corresponding preset threshold may be to calculate the remaining life of the filter element according to the total water passing amount and the preset maximum water passing amount of the filter element, or calculate the remaining life of the filter element according to the water passing flow rate and the preset water passing flow rate of the filter element, or calculate the remaining life of the filter element according to the total water making time and the preset maximum water making time of the filter element, or calculate the remaining life of the filter element according to the water quality parameter and the preset water quality parameter of the filter element, or a combination of the above methods. In addition, the residual life is represented in a percentage form after the ratio calculation of the relevant data and the corresponding preset threshold value is carried out.
Step 104: and judging whether filter elements with the residual service life reduced to the expired residual service life threshold exist in each filter element.
The remaining life threshold due to expiration corresponding to the filter element is the lowest value of the remaining life of the filter element in the use process, and it can be understood that when the remaining life of the filter element is reduced to the remaining life threshold due to expiration, the filter element has reached the lowest life to be replaced, and needs to be replaced as soon as possible. The value of the expired remaining lifetime threshold is not unique, and may be 0%. Preferably, a value close to 0% may be used as the expired residual life threshold, and the time required for the filter cartridge replacement may be reserved.
Specifically, when the remaining life corresponding to each stage of filter element in the multi-stage filter element device is obtained, the remaining life corresponding to each stage of filter element can be compared with the remaining life threshold value due to expiration one by one, and whether the remaining life of the filter element is reduced to the remaining life threshold value due to expiration exists or not is judged, and the expiration reminding and replacement are required.
Step 106: and when the filter elements with the residual service lives reduced to the expired residual service life threshold exist, judging whether the filter elements with the residual service lives reduced to the pre-expired residual service life threshold exist in each filter element.
Specifically, after comparing the remaining lives corresponding to the filter elements at each stage with the remaining life threshold due one by one, if at least one remaining life in the remaining lives of all the filter elements at each stage is reduced to the remaining life threshold due, it is determined that a filter element which needs to be reminded and replaced due exists in the multi-stage filter element device.
Further, the remaining lives corresponding to all the filter elements except the filter element which is reduced to the expired remaining life threshold are compared with the pre-expired remaining life threshold one by one, and whether the remaining life of the filter element is about to be reduced to the expired remaining life threshold in a short period is judged.
Step 107: when the filter element with the residual service life reduced to the pre-expiration residual service life threshold exists, the filter element with the residual service life reduced to the expiration residual service life threshold and the filter element with the residual service life reduced to the pre-expiration residual service life threshold are unified to perform filter element expiration reminding.
Specifically, the pre-expiration remaining life threshold includes a first pre-expiration remaining life interval and a second pre-expiration remaining life interval. The first pre-expiration residual life interval is used for judging whether a filter element to be reminded of expiration and replaced exists in a short period. The second pre-expiration residual life interval is larger than the first pre-expiration residual life interval, and can be used for judging whether filter elements with residual lives at the end stage but not reaching the threshold value to be replaced exist in all the filter elements, unified expiration reminding can be performed in a mode of waiting for reaching the threshold value to be replaced, and the filter element replacement frequency is reduced to the greatest extent under the condition that the effect of purifying water is not influenced much.
Specifically, when a filter element with the residual life in a first pre-expiration residual life interval exists, the filter element with the residual life reduced to the expiration residual life threshold value and the filter element in the first pre-expiration residual life interval are unified to perform filter element expiration reminding. And when no filter element with the residual life in the first pre-expiration residual life interval exists, judging whether a filter element with the residual life in the second pre-expiration residual life interval exists in each filter element. And when the filter element with the residual life in the second pre-expiration residual life interval exists, waiting for the residual life of the filter element in the second pre-expiration residual life interval to be in the first pre-expiration residual life interval, and uniformly reminding the expiration of the filter element together with the filter element with the residual life reduced to the expiration residual life threshold value.
Step 108: and when no filter element with the residual service life reduced to the pre-expiration residual service life threshold exists, performing filter element expiration reminding on the filter element with the residual service life reduced to the expiration residual service life threshold.
Specifically, if it is determined that there is no filter element in the first pre-expiration residual life interval in the multi-stage filter element device and there is no filter element in the second pre-expiration residual life interval, the filter element that is reduced to the expiration residual life threshold value is directly subjected to filter element expiration reminding.
In one embodiment, after step 104 and before step 106, the method further comprises:
step 105: when no filter element with the residual life reduced to the expired residual life threshold exists, returning to the step 102 to continuously acquire the residual lives of more than two filter elements of the water purifying device.
Specifically, after comparing the remaining lives corresponding to the filter elements at each stage with the remaining life threshold due one by one, when the remaining lives of all the filter elements at each stage are not reduced to the remaining life threshold due, it is determined that the filter elements do not need to be reminded and replaced due, and the step 102 may be returned to resume obtaining the remaining lives of more than two filter elements of the water purification apparatus. In other embodiments, after step 105, the step 102 is returned to continue to obtain the remaining life of more than two filter elements of the water purification apparatus after the preset interval time. The preset interval time is a time period for detecting whether the filter element expires under the condition that the normal use of the filter element can be ensured, and can be set according to the requirement of a user on the filter element replacement frequency of the water purification equipment, for example, the preset interval time can be 1 day, or a week, and the like, without limitation.
In addition, the expiration reminding mode of the filter element is not unique, and the expiration reminding mode can be a warning buzzing mode, an indicator light display mode, or an icon display mode on a display screen, without limitation.
According to the filter element expiration reminding method, the remaining service lives of all levels of filter elements of the water purifying equipment are obtained, when the filter elements are judged to be expired, whether other filter elements to be expired exist or not is judged, if yes, the filter elements are reminded to be expired in a unified mode, a user can replace the expired filter elements in time, the water purifying effect of the purifying equipment is guaranteed, meanwhile, the situation that the filter elements are replaced frequently in a short period is avoided, and the labor cost is saved.
In one embodiment, the pre-expiration remaining life threshold comprises a first pre-expiration remaining life interval. Specifically, the first pre-expired remaining life interval includes an upper limit value and a lower limit value. Wherein the upper limit value of the first pre-expired remaining life interval is greater than the lower limit value, preferably the lower limit value is equal to the expired remaining life threshold value. Then, as shown in fig. 2, the step 106 of determining whether there is any filter element with a remaining life reduced to the pre-expired remaining life threshold in each filter element includes:
step 202: and judging whether the filter element with the residual life in the first pre-expiration residual life interval exists in each filter element.
After the fact that the filter elements which need to be subjected to expiration reminding and replacement exist in the multi-stage filter element device is judged according to the expired residual life threshold, whether the residual lives corresponding to all the filter elements except the filter elements which are reduced to the expired residual life threshold are within a first pre-expired residual life interval is judged one by one, and whether the residual lives of the filter elements are about to be reduced to the expired residual life threshold in a short period is judged.
Specifically, whether the remaining lives of all the filter elements except the filter element which has decreased to the expired remaining life threshold value decrease to be below the upper limit value of the first pre-expired remaining life interval is determined one by one. And if at least one residual life is reduced to be below the upper limit value of the first pre-due residual life interval, judging that the filter element which is about to be subjected to due reminding and replacement exists in the multi-stage filter element device.
In one embodiment, as shown in fig. 2, in step 107, when there is a filter element with a remaining life reduced to a pre-expired remaining life threshold, the filter element with a remaining life reduced to the expired remaining life threshold and the filter element with a remaining life reduced to the pre-expired remaining life threshold are collectively subjected to a filter element expiration reminder, including:
step 204: when the filter element with the residual life in the first pre-expiration residual life interval exists, the filter element with the residual life reduced to the expiration residual life threshold value and the filter element in the first pre-expiration residual life interval are subjected to filter element expiration reminding in a unified mode.
Specifically, if it is determined according to step 202 that there is a filter element that is about to be subjected to expiration reminding and replacement in the multi-stage filter element device, the filter element that is lowered to the expiration residual life threshold value and the filter element that is in the first pre-expiration residual life interval that is about to be subjected to expiration reminding and replacement are subjected to unified filter element expiration reminding.
In one embodiment, the pre-expiration remaining life threshold further comprises a second pre-expiration remaining life interval, the second pre-expiration remaining life interval being greater than the first pre-expiration remaining life interval.
Specifically, the pre-expiration remaining life threshold further includes a second pre-expiration remaining life interval, and the second pre-expiration remaining life interval also has an upper limit value and a lower limit value. Wherein the upper limit value of the second pre-due remaining life interval is greater than the lower limit value, and preferably the lower limit value of the second pre-due remaining life interval is equal to the lower limit value of the first pre-due remaining life interval. It can be understood that the range of the second pre-expiration residual life interval is greater than the first pre-expiration residual life interval, and the method can be used for judging whether filter elements with residual life at the end stage but not reaching the threshold value to be replaced exist in all the filter elements, and can carry out unified expiration reminding in a mode of waiting for reaching the threshold value to be replaced, so that the filter element replacement frequency is reduced to the greatest extent under the condition of not affecting the purified water effect.
Further, as shown in fig. 2, when there is a filter element with a remaining life reduced to the pre-expired remaining life threshold in step 107, the filter element with a remaining life reduced to the expired remaining life threshold and the filter element with a remaining life reduced to the pre-expired remaining life threshold are collectively subjected to a filter element expiration reminder, which further includes:
step 206: and when no filter element with the residual life in the first pre-expiration residual life interval exists, judging whether a filter element with the residual life in the second pre-expiration residual life interval exists in each filter element.
Specifically, if it is determined in step 202 that there is no filter element in the first pre-expiration remaining life interval in the multi-stage filter element device, it is determined again whether the remaining lives of all filter elements except the filter element that has decreased to the expiration remaining life threshold are decreased to be less than the upper limit value of the second pre-expiration remaining life interval one by one. And if at least one residual life is reduced to be below the upper limit value of the second pre-due residual life interval, judging that filter elements capable of performing unified due reminding in a mode of waiting for reaching a replacement threshold exist in the multi-stage filter element device. The replacement threshold may be an upper limit value of the first pre-expired remaining life interval.
Step 208: and when the filter element with the residual life in the second pre-expiration residual life interval exists, waiting for the residual life of the filter element in the second pre-expiration residual life interval to be in the first pre-expiration residual life interval, and uniformly reminding the expiration of the filter element together with the filter element with the residual life reduced to the expiration residual life threshold value.
Specifically, if it is determined in step 206 that there are filter elements in the multi-stage filter element device that can be uniformly due for reminding by waiting for reaching the replacement threshold, the filter element due reminding is performed uniformly with the filter elements that have been decreased to the remaining life threshold due for the first predetermined remaining life interval after waiting for all the filter elements in the second predetermined remaining life interval to be decreased to be lower than the upper limit value of the remaining life interval due for the first predetermined remaining life interval.
In other embodiments, the interval of the pre-expired remaining life threshold may include more than two. Specifically, the pre-expiration residual life threshold value can be set according to the life cycle, price and the like of each type of filter element, and each type of filter element is compared with the corresponding pre-expiration residual life threshold value to judge the filter element to be reminded and replaced due to expiration. In addition, the number of the intervals of the pre-expiration residual life threshold value can be divided into more than two, so that the filter element which is about to expire and needs to be replaced is more carefully judged, and the effect of saving cost can be achieved.
In one embodiment, as shown in fig. 3, the step 102 of obtaining remaining life of more than two filter elements of the water purifying apparatus includes:
step 302: and collecting relevant data of each filter element of the water purifying equipment.
Specifically, the water purification device comprises a multi-stage filter element device for purifying an input water source of the water purification device to prepare purified water for drinking of a user. The multistage filter element device comprises more than two filter elements, the types of the filter elements are not unique, the filter elements can comprise RO (reverse osmosis) membranes, ultrafiltration membranes, PP (polypropylene) cotton, pre-filters, post-filters and the like, and the filter elements can also comprise active carbon, descaling cores, energy stones, medical stones, black ceramic carbon and the like. In one embodiment, the filter element of the multi-stage filter element device of the water purifying apparatus comprises at least one of an RO membrane, an ultrafiltration membrane, PP cotton, a pre-filter and a post-filter.
Furthermore, the corresponding acquisition and detection devices record the use data of all levels of filter elements for judging the residual life of the filter elements, and the data is not limited to the use time, the water passing amount, the water quality parameters, the flow attenuation and the like. In one embodiment, the relevant data includes at least one of a total water flow rate of the filter element, a total water production time of the filter element, and a water quality parameter of the filter element, and the corresponding preset threshold includes at least one of a preset maximum water flow rate, a preset maximum water production time, and a preset water quality parameter.
Step 304: and calculating the residual life according to the related data and the corresponding preset threshold value.
Specifically, the remaining life may be calculated based on a comparison of the correlation data with a corresponding preset threshold. The relevant data comprises the total water passing amount of the filter element, the water passing flow rate of the filter element, the total water making time of the filter element and the water quality parameters of the filter element, and the corresponding preset threshold comprises the preset maximum water passing amount, the preset water passing flow rate, the preset maximum water making time and the preset water quality parameters. In addition, the residual service life is the ratio of the residual service life to the total service life, and is represented in percentage.
In one embodiment, the step 304 of calculating the remaining life according to the related data and the corresponding preset threshold includes at least one of the following steps:
1. and calculating the residual service life l of the filter element according to the total excess water a of the filter element and the preset maximum excess water A.
Specifically, the total excess water amount a of the filter element is the total water making amount of the filter element from the beginning of filtration to the collection time, and the preset maximum excess water amount a is the maximum excess water amount of the filter element which can theoretically be filtered to obtain purified water. The total excess water amount a of the filter element can be obtained by adopting a liquid level sensor or a pressure sensor and other devices to sense the water level change in real time, and the preset maximum excess water amount a can be obtained by evaluating according to experimental data by a person skilled in the art, which is not described in detail. Further, the remaining life of the filter element, l, can be calculated according to the following formula:
2. calculating the residual service life l of the filter element according to the water passing flow velocity V of the filter element and the preset water passing flow velocity V;
specifically, the water flow velocity v of the filter element is the water production velocity of the filter element at the collection time, and can be obtained by sensing through a water flow sensor or other devices, or can be obtained by calculating the water volume change rate in unit time. The predetermined flow rate of water passing V may include an initial flow rate of water passing V1And a preset attenuated water flow velocity V2. Wherein the initial water flow velocity V1The water making speed of the filter element at the beginning of use; preset attenuated water flow velocity V2Is the lowest threshold value to which the flow rate of the water passing through the filter element can be attenuated, and can be understood that when the flow rate of the water passing through the filter element is reduced to the preset attenuated flow rate V2In time, the filter element needs to be replaced as quickly as possible. The preset water flow velocity V may also be obtained and stored by sensing with a water flow sensor or the like, or may be obtained by evaluation by a person skilled in the art according to experimental data.
Further, the residual life l of the filter element can be determined according to the flow rate V of the filter element and the initial flow rate V of the filter element1And calculating the attenuation multiple i to obtain:
wherein the attenuation multiple i is the flow velocity V of the filter element relative to the initial water flow in the use process1The attenuation multiple i is possibly changed along with the use process of the filter element, the value range is 0-1, the attenuation multiple i is not fixed, and the attenuation multiple i can be set according to the specific conditions of different types of filter elements.
The residual service life l of the filter element can also be determined according to the water passing of the filter elementFlow velocity V, initial flow velocity V1And a preset attenuated water flow velocity V2And calculating to obtain:
3. and calculating the residual service life l of the filter element according to the total water making time T of the filter element and the preset maximum water making time T.
Specifically, the total water making time t is the total water making time of the filter element at the collecting moment, and can be obtained through a timer. The preset maximum water making time T is the theoretical maximum water making time for the filter element to filter to obtain purified water, and the obtaining mode may be obtained by evaluation of a person skilled in the art according to experimental data, and is not described in detail. It can be understood that when the total water production time of the filter element reaches the preset maximum water production time T, the filter element needs to be replaced as soon as possible. Further, the residual life l of the filter element can also be calculated according to the following formula:
4. and calculating the residual life l of the filter element according to the water quality parameter of the filter element and a preset water quality parameter.
Specifically, the water quality parameter of the filter element can be understood as an evaluation parameter of the purified water obtained after the filtration of the filter element, and can include physical, chemical, biological and other water quality parameters. Specifically, in this embodiment, at least one water quality parameter is used as a basis for calculating the remaining life l of the filter element according to the filtering characteristics of each type of filter element. For example, the PP cotton filter element is characterized in that the PP cotton filter element is used for blocking large particulate matters such as rust, silt, ova and the like in water, and water quality parameters such as turbidity, transparency and the like can be correspondingly used as the basis for calculating the residual life l of the filter element. For another example, if the ultrafiltration membrane is used for separating a high molecular solute, the residual life l of the filter element can be calculated according to the water quality parameters such as the content of trace elements.
Furthermore, the water quality parameter of the filter element can be acquired by adopting a water quality parameter detection device, and the preset water quality parameter is a water quality parameter threshold value when the filter element filters to prepare purified water, so that the filter element needs to be replaced as soon as possible when the detected water quality parameter is lower than the preset water quality parameter.
In this embodiment, the remaining life l is represented in percentage after the ratio calculation is performed on the relevant data.
In addition, the remaining life may be determined by calculating by any of the above methods, or by calculating corresponding remaining lives according to the above methods and then determining by coefficient weighting. For example, the importance of the water quality detection of the filter element needs to be more important than other judgment factors, and the value of the weighting coefficient of the residual service life of the filter element calculated according to the water quality parameter of the filter element and the preset water quality parameter is higher than that of the weighting coefficient of other modes, so as to ensure that the water quality of the purified water is better.
In one embodiment, as shown in fig. 4, the expired remaining life threshold is 0%, the first pre-expired remaining life interval is 0% -10%, and the second pre-expired remaining life interval is 10% -20%.
Specifically, first, service data of each stage of filter element for judging the remaining life is acquired, including service time, water passing amount, water quality parameters, flow attenuation and the like of the filter element. And calculating the residual service life of each stage of filter element according to the use data and a preset threshold value.
Further, whether the residual service life of each stage of filter element reaches 0% or not is judged, namely whether the filter element is expired or not is judged. And if no filter element is expired, the residual service life of each stage of filter element is judged again directly after the preset interval time.
And if the filter element is expired, further judging whether the residual service life of other filter elements is between 0 and 10 percent. If the residual service life of other filter elements is between 0% and 10%, the filter elements with the residual service life reduced to 0% and the filter elements with the residual service life between 0% and 10% are uniformly replaced with due reminders.
And if no filter element with the residual service life between 0% and 10% exists, further judging whether the residual service life of other filter elements is between 10% and 20%. And if the residual life of other filter elements is not between 10% and 20%, the filter elements with the residual life reaching 0% are separately replaced by reminding due. If the residual service life of other filter elements is 10% -20%, waiting for the residual service life of the filter elements with the residual service life between 10% -20% to be reduced to below 10%, and then uniformly carrying out expiration reminding replacement on the filter elements with the residual service life of 0% and the filter elements with the residual service life of less than 10%.
It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
Based on the same inventive concept, the embodiment of the application also provides a filter element expiration reminding device for realizing the above related filter element expiration reminding method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so that specific limitations in one or more embodiments of the filter element expiration reminding device provided below can be referred to the limitations on the filter element expiration reminding method in the foregoing, and details are not repeated herein.
In one embodiment, as shown in fig. 5, a filter element expiration reminding apparatus is provided, the apparatus includes a filter element life acquiring module 510, a filter element life expiration judging module 520 and a filter element expiration reminding module 530,
and a filter element life acquiring module 510 for acquiring the remaining life of more than two filter elements of the water purifying apparatus.
The filter element life expiration judging module 520 is configured to judge whether a filter element with a remaining life reduced to an expired remaining life threshold exists in each filter element, and further, when a filter element with a remaining life reduced to an expired remaining life threshold exists, judge whether a filter element with a remaining life reduced to a pre-expired remaining life threshold exists in each filter element.
A filter element expiration reminding module 530, configured to, when there is a filter element whose remaining life is reduced to the pre-expiration remaining life threshold, perform filter element expiration reminding on the filter element reduced to the expiration remaining life threshold and the filter element reduced to the pre-expiration remaining life threshold in a unified manner; and the filter element expiration reminding device is also used for reminding the filter element expiration of the filter element with the residual life reduced to the expired residual life threshold when no filter element with the residual life reduced to the pre-expired residual life threshold exists.
In one embodiment, the filter element life acquiring module 510 is further configured to acquire relevant data of each filter element of the water purifying apparatus, and calculate the remaining life according to the relevant data and a corresponding preset threshold. The relevant data comprises at least one of total water passing amount of the filter element, water passing flow rate of the filter element, total water making time of the filter element and water quality parameters of the filter element, and the corresponding preset threshold comprises at least one of preset maximum water passing amount, preset water passing flow rate, preset maximum water making time and preset water quality parameters.
In one embodiment, the filter cartridge life acquiring module 510 is further configured to calculate the remaining life of the filter cartridge according to the total water passing amount of the filter cartridge and a preset maximum water passing amount; calculating the residual service life of the filter element according to the water passing flow rate of the filter element and a preset water passing flow rate; calculating the residual service life of the filter element according to the total water making time of the filter element and the preset maximum water making time; and calculating the residual life of the filter element according to the water quality parameter of the filter element and a preset water quality parameter.
In one embodiment, the filter element life expiration determination module 520 is further configured to determine whether a filter element having a remaining life within a first pre-expiration remaining life interval exists in each filter element, and to determine whether a filter element having a remaining life within a second pre-expiration remaining life interval exists in each filter element.
In one embodiment, filter element expiration reminder module 530 is further configured to, when there is a filter element having a remaining life within a first pre-expiration remaining life interval, provide a filter element expiration reminder that unifies filter elements having a filter element that has fallen below an expiration remaining life threshold with filter elements having a remaining life within the first pre-expiration remaining life interval.
In one embodiment, the filter element expiration reminding module 530 is further configured to, when there is a filter element having a remaining life within a second pre-expiration remaining life interval, wait for the remaining life of the filter element within the second pre-expiration remaining life interval to be within a first pre-expiration remaining life interval, and then perform a filter element expiration reminding in conjunction with the filter element having a remaining life reduced to the expiration remaining life threshold.
In one embodiment, a water purifying apparatus is provided, which includes a multi-stage filter element device, a display device and the above-mentioned filter element expiration reminding device, wherein the filter element expiration reminding device is connected with the multi-stage filter element device and the display device.
Specifically, the multi-stage filter element device of the water purifying equipment is used for purifying an input water source of the water purifying equipment to prepare purified water for drinking of a user. The multistage filter element device comprises more than two filter elements, the types of the filter elements are not unique, the filter elements can comprise RO membranes, ultrafiltration membranes, PP cotton, pre-filters, post-filters and the like, and the filter elements can also comprise active carbon, descaling cores, energy stones, medical stones, black ceramic crystal carbon and the like.
Further, the filter element expiration reminding device is used for collecting relevant data of each filter element of the water purifying equipment, and calculating the residual life according to the relevant data and the corresponding preset threshold value. Whether filter elements with expired residual life and filter elements about to expire are judged according to the residual life of each filter element, unified expiration reminding of the expired filter elements and the filter elements about to expire can be achieved, a user is reminded of replacing the filter elements in time, the problem that the user frequently replaces the filter elements is solved, and the water purifying effect can be guaranteed.
In addition, display device carries out the device that reminds after the filter core is expired, can be the display screen, also can be the pilot lamp. When the filter element expiration reminding device judges that the filter element expired and the filter element about to expire exist, the filter element expiration reminding device displays the filter element expiration reminding device in a display screen or indicator lamp mode to remind a user of replacing the filter element in time.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for reminding that a filter element is due, the method comprising:
acquiring the residual service life of more than two filter elements of the water purifying equipment;
judging whether a filter element with the residual service life reduced to the expired residual service life threshold exists in each filter element;
when the filter element with the residual service life reduced to the expired residual service life threshold exists, judging whether the filter element with the residual service life reduced to the pre-expired residual service life threshold exists in each filter element;
when a filter element with the residual service life reduced to the pre-expiration residual service life threshold exists, uniformly reminding the expiration of the filter element by the filter element with the residual service life reduced to the expiration residual service life threshold and the filter element with the residual service life reduced to the pre-expiration residual service life threshold;
and when no filter element with the residual service life reduced to the pre-expiration residual service life threshold exists, performing filter element expiration reminding on the filter element with the residual service life reduced to the expiration residual service life threshold.
2. The filter element expiration reminder method according to claim 1, wherein the pre-expiration remaining life threshold comprises a first pre-expiration remaining life interval; the determining whether there is a filter element in each filter element whose remaining life decreases to the pre-expiration remaining life threshold includes:
and judging whether the filter element with the residual life in the first pre-expiration residual life interval exists in each filter element.
3. The filter element expiration reminding method according to claim 2, wherein the filter element expiration reminding is performed by unifying the filter element which is decreased to the expired residual life threshold and the filter element which is decreased to the pre-expired residual life threshold when there is a filter element whose residual life is decreased to the pre-expired residual life threshold, and comprises:
and when the filter element with the residual life in the first pre-expiration residual life interval exists, uniformly reminding the expiration of the filter element by the filter element with the residual life reduced to the expiration residual life threshold value and the filter element in the first pre-expiration residual life interval.
4. The filter cartridge expiration reminder method of claim 3, wherein the pre-expiration remaining life threshold further comprises a second pre-expiration remaining life interval, the second pre-expiration remaining life interval being greater than the first pre-expiration remaining life interval; when there is a filter element with a remaining life reduced to the pre-expiration remaining life threshold, uniformly reminding the expiration of the filter element by the filter element with the remaining life reduced to the expiration remaining life threshold and the filter element with the remaining life reduced to the pre-expiration remaining life threshold, further comprising:
when no filter element with the residual life in the first pre-expiration residual life interval exists, judging whether a filter element with the residual life in the second pre-expiration residual life interval exists in each filter element;
when the filter element with the residual life in the second pre-expiration residual life interval exists, waiting for the residual life of the filter element in the second pre-expiration residual life interval to be in the first pre-expiration residual life interval, and performing filter element expiration reminding together with the filter element with the residual life reduced to the expiration residual life threshold value.
5. The filter element expiration reminding method as claimed in claim 1, wherein the obtaining of the remaining life of more than two filter elements of the water purification apparatus comprises:
collecting relevant data of each filter element of the water purifying equipment;
and calculating the residual life according to the related data and the corresponding preset threshold value.
6. The filter cartridge expiration reminder method of claim 5, wherein the filter cartridge comprises at least one of a RO membrane, an ultrafiltration membrane, PP cotton, a pre-filter, and a post-filter.
7. The filter element expiration reminding method according to claim 5, wherein the related data includes at least one of a total water passing amount of the filter element, a water passing flow rate of the filter element, a total water making time of the filter element, and a water quality parameter of the filter element, and the corresponding preset threshold includes at least one of a preset maximum water passing amount, a preset water passing flow rate, a preset maximum water making time, and a preset water quality parameter.
8. The filter element expiration reminding method according to claim 7, wherein the calculating of the remaining life based on the correlation data and the corresponding preset threshold value comprises at least one of:
calculating the residual service life of the filter element according to the total water passing amount of the filter element and the preset maximum water passing amount;
calculating the residual service life of the filter element according to the water passing flow rate of the filter element and the preset water passing flow rate;
calculating the residual service life of the filter element according to the total water making time of the filter element and the preset maximum water making time;
and calculating the residual life of the filter element according to the water quality parameter of the filter element and the preset water quality parameter.
9. A filter cartridge expiration reminder apparatus, the apparatus comprising:
the filter element service life acquisition module is used for acquiring the residual service lives of more than two filter elements of the water purification equipment;
the filter element life expiration judging module is used for judging whether a filter element with the residual life reduced to an expired residual life threshold exists in each filter element or not, and is also used for judging whether a filter element with the residual life reduced to a pre-expired residual life threshold exists in each filter element when the filter element with the residual life reduced to the expired residual life threshold exists;
the filter element expiration reminding module is used for carrying out filter element expiration reminding on the filter elements with the residual service life reduced to the pre-expiration residual service life threshold and the filter elements with the residual service life reduced to the pre-expiration residual service life threshold in a unified manner when the filter elements with the residual service life reduced to the pre-expiration residual service life threshold exist; and the filter element expiration reminding device is also used for reminding the filter element expiration of the filter element with the residual life reduced to the expired residual life threshold when no filter element with the residual life reduced to the pre-expired residual life threshold exists.
10. A water purification apparatus, comprising a multi-stage filter element device, a display device, and the filter element expiration reminder device of claim 9, the filter element expiration reminder device connecting the multi-stage filter element device and the display device.
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