CN104841214A - Monitoring device and monitoring method for filter screen life of purifier - Google Patents
Monitoring device and monitoring method for filter screen life of purifier Download PDFInfo
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- CN104841214A CN104841214A CN201510295624.5A CN201510295624A CN104841214A CN 104841214 A CN104841214 A CN 104841214A CN 201510295624 A CN201510295624 A CN 201510295624A CN 104841214 A CN104841214 A CN 104841214A
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Abstract
The invention discloses a monitoring device and a monitoring method for filter screen life of a purifier. The method comprises the following steps: firstly acquiring current air quality information and current wind speed information through a detection module, and then sending to a center control module, computing the rest working life of the filter screen of the purifier through the center control module according to the current air quality information and the current wind speed information, when the rest working life equals to a life limit threshold value, reminding a user of replacing the filter screen of the purifier. Since the air quality is considered in the computation of the life of the filter screen, the computed life is more close to the actual life of the filter screen. The life of the filter screen is progressively decreased per 10 sec according to the current wind speed and air quality, the life of the filter screen can be more carefully estimated, the estimation error is reduced, the computation precision is promoted, and the client loss is reduced.
Description
Technical field
The present invention relates to clarifier technical field, relate to monitoring device and the monitoring method thereof in a kind of clarifier filter screen life-span specifically.
Background technology
Intelligent air purifier is that various air pollutants can be adsorbed, decompose or be transformed to one, effectively improves the product of air cleanliness.But in conventional art, American I QARE, Switzerland BLUEAR, Philip, domestic U.S. and Jing Meishideng company air purifier product, all adopt the life-span of HEPA screen pack in the filter core that the mode monitoring calculation product of countdown uses.But, for different environments for use, such as in the area that the hazes such as Beijing and Shanghai are more serious, in filter core, the service life of HEPA screen pack can shorten greatly, and it is regional preferably at air, in filter core, the service life of HEPA screen pack can increase very long, the simple service life using the mode of countdown can accurately not draw HEPA screen pack in filter core.And do not change when in filter core, HEPA screen pack arrives service life, air purifier does not have clean-up effect completely, but HEPA screen pack also not to reach just change one piece of good filter screen and can produce larger expense service life in filter core.In addition, air purifier on the market also lacks effective monitoring means to its core blower fan present stage.
Therefore, the present inventor needs a kind of new technology of design badly to improve its problem.
Summary of the invention
Cannot the problem in accurate measurements filter screen life-span in order to solve in prior art, the invention provides monitoring device and the monitoring method thereof in a kind of clarifier filter screen life-span.
For solving the problems of the technologies described above, technical scheme of the present invention is:
The monitoring device in clarifier filter screen life-span, comprising:
Detection module, for obtaining current air quality information and current wind speed information and sending it to central control module;
Described central control module, for calculating the concrete surplus working life of clarifier filter screen according to current air quality information and current wind speed information, the reminding user to replace clarifier filter screen when concrete surplus working life equals lifetime limitation threshold value.
Further, described central control module also comprises:
Air quality grade classification unit, for air quality is carried out grade classification, forms air quality table of grading;
Wind speed scale division unit, for wind speed is carried out grade classification, forms wind speed scale table;
Setting value unit, for arranging life-span initial value and lifetime limitation threshold value;
Attenuation coefficient setup unit, for obtaining filter screen life-span summary table in conjunction with air quality table of grading, wind speed scale table for different filter screen materials simultaneously, then filter screen life time decay table is drawn by life-span initial value in conjunction with filter screen life-span summary table, an air quality rank and a common corresponding specific life time decay coefficient value of wind speed rank in filter screen life time decay table, described life time decay coefficient value characterizes the filter screen life time decay value of a period of time this air quality rank inherent and wind speed rank.
Further, described detection module specifically comprises:
Air quality detector, for detecting air quality, obtaining current air quality information and sending it to described central control module, described air quality information comprises at least one air index parameter;
Fan electromotor drive circuit, for detecting the wind speed in clarifier, obtaining current wind speed information and sending it to described central control module, described wind speed information comprises at least one wind speed index parameter.
Further, described central control module also comprises:
Receiving element, owing to receiving current air quality information and current wind speed information and sending it to comparing unit;
Described comparing unit, for current air quality information and air quality table of grading being compared, obtains the air quality rank at current air mass place;
Current wind speed information and wind speed scale table are compared, obtains the wind speed rank at current wind speed place;
Search unit, for finding out its corresponding life time decay coefficient value according to air quality rank and wind speed rank in filter screen life time decay table;
Computing unit, for obtaining concrete surplus working life, when calculating for the first time, then deducts life time decay coefficient value by life-span initial value and obtains concrete surplus working life; Otherwise, then deduct life time decay coefficient value by concrete surplus working life and obtain up-to-date concrete surplus working life, and using the concrete surplus working life of up-to-date concrete surplus working life as clarifier filter screen;
Threshold value comparing unit, for by concrete surplus working life compared with lifetime limitation threshold value, when concrete surplus working life equals default lifetime limitation threshold value, send warning message to reminding unit;
Described reminding unit, for reminding user to replace clarifier filter screen.
Further, described air quality detector is particle sensor.
The monitoring method in clarifier filter screen life-span, comprises the steps:
S1: obtain current air quality information and current wind speed information;
S2: the concrete surplus working life calculating clarifier filter screen according to current air quality information and current wind speed information, the reminding user to replace clarifier filter screen when concrete surplus working life equals lifetime limitation threshold value.
Further, also comprised the steps: before described step S1
Air quality is carried out grade classification, forms air quality table of grading;
Wind speed is carried out grade classification, forms wind speed scale table;
Life-span initial value and lifetime limitation threshold value are set;
Obtain filter screen life-span summary table in conjunction with air quality table of grading, wind speed scale table for different filter screen materials simultaneously, then filter screen life time decay table is drawn by life-span initial value in conjunction with filter screen life-span summary table, an air quality rank and a common corresponding specific life time decay coefficient value of wind speed rank in filter screen life time decay table, described life time decay coefficient value characterizes the filter screen life time decay value of a period of time this air quality rank inherent and wind speed rank.
Further, described step S1 specifically comprises:
Detected air quality by air quality detector, obtain current air quality information, described air quality information comprises at least one air index parameter;
Detected the wind speed in clarifier by fan electromotor drive circuit, obtain current wind speed information, described wind speed information comprises at least one wind speed index parameter.
Further, described step S2 specifically comprises:
S21: current air quality information and air quality table of grading are compared, obtains the air quality rank at current air mass place;
Current wind speed information and wind speed scale table are compared, obtains the wind speed rank at current wind speed place;
S22: find out its corresponding life time decay coefficient value according to air quality rank and wind speed rank in filter screen life time decay table;
S23: if calculate for the first time, then deduct life time decay coefficient value by life-span initial value and obtain concrete surplus working life;
Otherwise, then deduct life time decay coefficient value by concrete surplus working life and obtain up-to-date concrete surplus working life, and using the concrete surplus working life of up-to-date concrete surplus working life as clarifier filter screen;
S24: by concrete surplus working life compared with lifetime limitation threshold value, when concrete surplus working life equals default lifetime limitation threshold value, reminding user to replace clarifier filter screen.
Further, described air quality detector is particle sensor.
Adopt technique scheme, the present invention at least comprises following beneficial effect:
The monitoring device in clarifier filter screen life-span of the present invention and monitoring method thereof, when the calculating filter screen life-span, also taken into account this factor of air quality, so can closer to the actual life of filter screen.And it successively decreases the filter screen life-span according to current wind speed and air quality for every 10 seconds, so the estimation filter screen life-span that can be more careful, reduce estimation error, promote computational accuracy, reduce client's loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the monitoring device in clarifier filter screen life-span of the present invention;
Fig. 2 is the flow chart of the monitoring method in clarifier filter screen life-span of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
embodiment 1
As shown in Figure 1, for meeting the monitoring device in a kind of clarifier filter screen life-span of the present embodiment, comprising:
Detection module, for obtaining current air quality information and current wind speed information and sending it to central control module;
Described central control module, for calculating the concrete surplus working life of clarifier filter screen according to current air quality information and current wind speed information, the reminding user to replace clarifier filter screen when concrete surplus working life equals lifetime limitation threshold value.
Further, described central control module also comprises:
Air quality grade classification unit, for air quality is carried out grade classification, forms air quality table of grading;
Wind speed scale division unit, for wind speed is carried out grade classification, forms wind speed scale table;
Setting value unit, for arranging life-span initial value and lifetime limitation threshold value;
Attenuation coefficient setup unit, for obtaining filter screen life-span summary table in conjunction with air quality table of grading, wind speed scale table for different filter screen materials simultaneously, then filter screen life time decay table is drawn by life-span initial value in conjunction with filter screen life-span summary table, an air quality rank and a common corresponding specific life time decay coefficient value of wind speed rank in filter screen life time decay table, described life time decay coefficient value characterizes the filter screen life time decay value of a period of time this air quality rank inherent and wind speed rank, and preferably this period of time is 10s.
Further, described detection module specifically comprises:
Air quality detector, for detecting air quality, obtain current air quality information and send it to described central control module, described air quality information comprises at least one air index parameter, the index parameter of air described in the present embodiment includes but not limited to PM value, and described air quality detector is preferably particle sensor.
Fan electromotor drive circuit, for detecting the wind speed in clarifier, obtain current wind speed information and send it to described central control module, described wind speed information comprises at least one wind speed index parameter, described wind speed index parameter can comprise wind direction, maximum wind velocity, minimum windspeed, mean wind speed etc., and the index parameter of wind speed described in the present embodiment is preferably mean wind speed speed.
Further, described central control module also comprises:
Receiving element, owing to receiving current air quality information and current wind speed information and sending it to comparing unit;
Described comparing unit, for current air quality information and air quality table of grading being compared, obtains the air quality rank at current air mass place;
Current wind speed information and wind speed scale table are compared, obtains the wind speed rank at current wind speed place;
Search unit, for finding out its corresponding life time decay coefficient value according to air quality rank and wind speed rank in filter screen life time decay table;
Computing unit, for obtaining concrete surplus working life, when calculating for the first time, then deducts life time decay coefficient value by life-span initial value and obtains concrete surplus working life; Otherwise, then deduct life time decay coefficient value by concrete surplus working life and obtain up-to-date concrete surplus working life, and using the concrete surplus working life of up-to-date concrete surplus working life as clarifier filter screen;
Threshold value comparing unit, for by concrete surplus working life compared with lifetime limitation threshold value, when concrete surplus working life equals default lifetime limitation threshold value, send warning message to reminding unit;
Described reminding unit, for reminding user to replace clarifier filter screen.
As everyone knows, the too early replacing in evening excessively of clarifier filter screen is all bad, changes too early, increases cost; Spend evening to change, affect the effect of purification of air, affect client healthy.We have found air quality, relation between wind speed and filter screen life-span by a large amount of experiments, and draw the life-span decrement value of a filter screen unit interval thus, this value is relevant with wind speed with air quality.Such as we are divided into 10 grades air quality, and wind speed is divided into 5 grades, just obtain a two-dimensional array.This two-dimensional array element value is exactly life-span decrement value.Wherein air quality can according to the air quality classification standard of national regulation, also can self-defining, and wind speed classification is as the same, and the present embodiment is not construed as limiting this.
If table 1 is the data obtained by experiment, the numeral in form be by hour in units of, represent the life-span.Its air quality classification preferably divides according to PM2.5 value, and the classification of well-known PM2.5 GB 0 ~ 500 is divided into 6 grades.In order to the accurate Calculation filter screen life-span in the present embodiment, so air quality 0 ~ 500 is divided into 10 poles.
0 ~ 50 is 1 grade;
50 ~ 100 is 2 grades;
100 ~ 150 is 3 grades;
150 ~ 200 is 4 grades;
200 ~ 250 is 5 grades;
250 ~ 300 is 6 grades;
300 ~ 350 is 7 grades;
350 ~ 400 is 8 grades;
400 ~ 450 is 9 grades;
More than 450 ~ 500 is all 10 grades.
The setting of rated wind speed is mainly according to the relation setting of the performance (air cleaning amount per hour) of product, efficiency of evolution and wind speed and air mass flow.The wind speed of other each gear we according to clean-up effect with wind is hot-tempered considers, provide the preferred version in the present embodiment below:
1 grade of wind speed is 300RPM;
2 grades of wind speed are 450RPM;
3 grades is 600RPM;
4 but 800RPM;
5 grades is 950RPM.
Above classification we be calculating for the filter screen life-span, be prompted to the grade of user's current air mass and wind speed.Certain those skilled in the art can also do corresponding adjustment and change, but all should within the protection domain of the present embodiment.
Table 1
Can draw table 2 by table 1, table 2 is the decrement values in filter screen life-span.Life-span of filter screen is moderate breeze speed and air quality when being 5 grades 1000 hours.
Table 2
It is 1000*10000 that the filter screen life-span of table 1 is converted to table 2, therefore preferably life-span initial value is arranged to 1000*10000 in the present embodiment, lifetime limitation threshold value is 0, and this place's numerical value can adjust accordingly according to the service condition of reality, and the present embodiment is not construed as limiting this.Then every 10s deducts the number in form two according to wind speed and air quality.For one-level wind speed and main air quality, within one hour, be 360 10 seconds, deduct (12.626*360=4545.36) so per hour, life-span initial value 1000*10000 is 2200 hours divided by 4545.36, meets experimental data.
Table 1 and table 2 are the experiment test and data setting that carry out for the filter screen of HEPA material, and those skilled in the art can also carry out testing for the filter screen of other materials thus obtain different parameters accordingly, and the present embodiment does not limit this.
Because program is successively decreased the filter screen life-span according to current wind speed and air quality for every 10 seconds, so the estimation filter screen life-span that can be more careful, the also actual life of relatively filter screen.
The present embodiment, when the calculating filter screen life-span, has also taken into account this factor of air quality, so can closer to the actual life of filter screen.Reduce estimation error, reduce client's loss.
embodiment 2
As shown in Figure 2, for meeting the monitoring method in a kind of clarifier filter screen life-span of the present embodiment, comprise the steps:
S1: obtain current air quality information and current wind speed information;
S2: the concrete surplus working life calculating clarifier filter screen according to current air quality information and current wind speed information, the reminding user to replace clarifier filter screen when concrete surplus working life equals lifetime limitation threshold value.
Further, also comprised the steps: before described step S1
Air quality is carried out grade classification, forms air quality table of grading;
Wind speed is carried out grade classification, forms wind speed scale table;
Life-span initial value and lifetime limitation threshold value are set;
Obtain filter screen life-span summary table in conjunction with air quality table of grading, wind speed scale table for different filter screen materials simultaneously, then filter screen life time decay table is drawn by life-span initial value in conjunction with filter screen life-span summary table, an air quality rank and a common corresponding specific life time decay coefficient value of wind speed rank in filter screen life time decay table, described life time decay coefficient value characterizes the filter screen life time decay value of a period of time this air quality rank inherent and wind speed rank, and preferably this period of time is 10s.
Further, described step S1 specifically comprises:
By air quality detector, air quality is detected, obtain current air quality information, described air quality information comprises at least one air index parameter, the index parameter of air described in the present embodiment includes but not limited to PM value, and described air quality detector is preferably particle sensor.
By fan electromotor drive circuit, the wind speed in clarifier is detected, obtain current wind speed information, described wind speed information comprises at least one wind speed index parameter, described wind speed index parameter can comprise wind direction, maximum wind velocity, minimum windspeed, mean wind speed etc., and the index parameter of wind speed described in the present embodiment is preferably mean wind speed speed.
Further, described step S2 specifically comprises:
S21: current air quality information and air quality table of grading are compared, obtains the air quality rank at current air mass place;
Current wind speed information and wind speed scale table are compared, obtains the wind speed rank at current wind speed place;
S22: find out its corresponding life time decay coefficient value according to air quality rank and wind speed rank in filter screen life time decay table;
S23: if calculate for the first time, then deduct life time decay coefficient value by life-span initial value and obtain concrete surplus working life;
Otherwise, then deduct life time decay coefficient value by concrete surplus working life and obtain up-to-date concrete surplus working life, and using the concrete surplus working life of up-to-date concrete surplus working life as clarifier filter screen;
S24: by concrete surplus working life compared with lifetime limitation threshold value, when concrete surplus working life equals default lifetime limitation threshold value, reminding user to replace clarifier filter screen.
As everyone knows, the too early replacing in evening excessively of clarifier filter screen is all bad, changes too early, increases cost; Spend evening to change, affect the effect of purification of air, affect client healthy.We have found air quality, relation between wind speed and filter screen life-span by a large amount of experiments, and draw the life-span decrement value of a filter screen unit interval thus, this value is relevant with wind speed with air quality.Such as we are divided into 10 grades air quality, and wind speed is divided into 5 grades, just obtain a two-dimensional array.This two-dimensional array element value is exactly life-span decrement value.Wherein air quality can according to the air quality classification standard of national regulation, also can self-defining, and wind speed classification is as the same, and the present embodiment is not construed as limiting this.
If table 1 is the data obtained by experiment, the numeral in form be by hour in units of, represent the life-span.Its air quality classification preferably divides according to PM2.5 value, and the classification of well-known PM2.5 GB 0 ~ 500 is divided into 6 grades.In order to the accurate Calculation filter screen life-span in the present embodiment, so air quality 0 ~ 500 is divided into 10 poles.
0 ~ 50 is 1 grade;
50 ~ 100 is 2 grades;
100 ~ 150 is 3 grades;
150 ~ 200 is 4 grades;
200 ~ 250 is 5 grades;
250 ~ 300 is 6 grades;
300 ~ 350 is 7 grades;
350 ~ 400 is 8 grades;
400 ~ 450 is 9 grades;
More than 450 ~ 500 is all 10 grades.
The setting of rated wind speed is mainly according to the relation setting of the performance (air cleaning amount per hour) of product, efficiency of evolution and wind speed and air mass flow.The wind speed of other each gear we according to clean-up effect with wind is hot-tempered considers, provide the preferred version in the present embodiment below:
1 grade of wind speed is 300RPM;
2 grades of wind speed are 450RPM;
3 grades is 600RPM;
4 but 800RPM;
5 grades is 950RPM.
Above classification we be calculating for the filter screen life-span, be prompted to the grade of user's current air mass and wind speed.Certain those skilled in the art can also do corresponding adjustment and change, but all should within the protection domain of the present embodiment.
Table 1
Can draw table 2 by table 1, table 2 is the decrement values in filter screen life-span.Life-span of filter screen is moderate breeze speed and air quality when being 5 grades 1000 hours.
Table 2
It is 1000*10000 that the filter screen life-span of table 1 is converted to table 2, therefore preferably life-span initial value is arranged to 1000*10000 in the present embodiment, lifetime limitation threshold value is 0, and this place's numerical value can adjust accordingly according to the service condition of reality, and the present embodiment is not construed as limiting this.Then every 10s deducts the number in form two according to wind speed and air quality.For one-level wind speed and main air quality, within one hour, be 360 10 seconds, deduct (12.626*360=4545.36) so per hour, life-span initial value 1000*10000 is 2200 hours divided by 4545.36, meets experimental data.
Table 1 and table 2 are the experiment test and data setting that carry out for the filter screen of HEPA material, and those skilled in the art can also carry out testing for the filter screen of other materials thus obtain different parameters accordingly, and the present embodiment does not limit this.
Because program is successively decreased the filter screen life-span according to current wind speed and air quality for every 10 seconds, so the estimation filter screen life-span that can be more careful, the also actual life of relatively filter screen.
The present embodiment, when the calculating filter screen life-span, has also taken into account this factor of air quality, so can closer to the actual life of filter screen.Reduce estimation error, reduce client's loss.
Above embodiments of the invention have been described in detail, but described content being only the preferred embodiment of the invention, can not being considered to for limiting practical range of the present invention.All any equivalent variations done according to the present patent application scope, all should still be within patent covering scope of the present invention.
Claims (10)
1. the monitoring device in clarifier filter screen life-span, is characterized in that, comprising:
Detection module, for obtaining current air quality information and current wind speed information and sending it to central control module;
Described central control module, for calculating the concrete surplus working life of clarifier filter screen according to current air quality information and current wind speed information, the reminding user to replace clarifier filter screen when concrete surplus working life equals lifetime limitation threshold value.
2. the monitoring device in clarifier filter screen life-span as claimed in claim 1, it is characterized in that, described central control module also comprises:
Air quality grade classification unit, for air quality is carried out grade classification, forms air quality table of grading;
Wind speed scale division unit, for wind speed is carried out grade classification, forms wind speed scale table;
Setting value unit, for arranging life-span initial value and lifetime limitation threshold value;
Attenuation coefficient setup unit, for obtaining filter screen life-span summary table in conjunction with air quality table of grading, wind speed scale table for different filter screen materials simultaneously, then filter screen life time decay table is drawn by life-span initial value in conjunction with filter screen life-span summary table, an air quality rank and a common corresponding specific life time decay coefficient value of wind speed rank in filter screen life time decay table, described life time decay coefficient value characterizes the filter screen life time decay value of a period of time this air quality rank inherent and wind speed rank.
3. the monitoring device in clarifier filter screen life-span as claimed in claim 1 or 2, it is characterized in that, described detection module specifically comprises:
Air quality detector, for detecting air quality, obtaining current air quality information and sending it to described central control module, described air quality information comprises at least one air index parameter;
Fan electromotor drive circuit, for detecting the wind speed in clarifier, obtaining current wind speed information and sending it to described central control module, described wind speed information comprises at least one wind speed index parameter.
4. the monitoring device in clarifier filter screen life-span as claimed in claim 2 or claim 3, it is characterized in that, described central control module also comprises:
Receiving element, owing to receiving current air quality information and current wind speed information and sending it to comparing unit;
Described comparing unit, for current air quality information and air quality table of grading being compared, obtains the air quality rank at current air mass place;
Current wind speed information and wind speed scale table are compared, obtains the wind speed rank at current wind speed place;
Search unit, for finding out its corresponding life time decay coefficient value according to air quality rank and wind speed rank in filter screen life time decay table;
Computing unit, for obtaining concrete surplus working life, when calculating for the first time, then deducts life time decay coefficient value by life-span initial value and obtains concrete surplus working life; Otherwise, then deduct life time decay coefficient value by concrete surplus working life and obtain up-to-date concrete surplus working life, and using the concrete surplus working life of up-to-date concrete surplus working life as clarifier filter screen;
Threshold value comparing unit, for by concrete surplus working life compared with lifetime limitation threshold value, when concrete surplus working life equals default lifetime limitation threshold value, send warning message to reminding unit;
Described reminding unit, for reminding user to replace clarifier filter screen.
5. the monitoring device in clarifier filter screen life-span as claimed in claim 3, is characterized in that: described air quality detector is particle sensor.
6. the monitoring method in clarifier filter screen life-span, is characterized in that, comprises the steps:
S1: obtain current air quality information and current wind speed information;
S2: the concrete surplus working life calculating clarifier filter screen according to current air quality information and current wind speed information, the reminding user to replace clarifier filter screen when concrete surplus working life equals lifetime limitation threshold value.
7. the monitoring method in clarifier filter screen life-span as claimed in claim 6, is characterized in that: also comprised the steps: before described step S1
Air quality is carried out grade classification, forms air quality table of grading;
Wind speed is carried out grade classification, forms wind speed scale table;
Life-span initial value and lifetime limitation threshold value are set;
Obtain filter screen life-span summary table in conjunction with air quality table of grading, wind speed scale table for different filter screen materials simultaneously, then filter screen life time decay table is drawn by life-span initial value in conjunction with filter screen life-span summary table, an air quality rank and a common corresponding specific life time decay coefficient value of wind speed rank in filter screen life time decay table, described life time decay coefficient value characterizes the filter screen life time decay value of a period of time this air quality rank inherent and wind speed rank.
8. the monitoring method in clarifier filter screen life-span as claimed in claims 6 or 7, it is characterized in that, described step S1 specifically comprises:
Detected air quality by air quality detector, obtain current air quality information, described air quality information comprises at least one air index parameter;
Detected the wind speed in clarifier by fan electromotor drive circuit, obtain current wind speed information, described wind speed information comprises at least one wind speed index parameter.
9. the monitoring method in clarifier filter screen life-span as claimed in claim 7 or 8, it is characterized in that, described step S2 specifically comprises:
S21: current air quality information and air quality table of grading are compared, obtains the air quality rank at current air mass place;
Current wind speed information and wind speed scale table are compared, obtains the wind speed rank at current wind speed place;
S22: find out its corresponding life time decay coefficient value according to air quality rank and wind speed rank in filter screen life time decay table;
S23: if calculate for the first time, then deduct life time decay coefficient value by life-span initial value and obtain concrete surplus working life;
Otherwise, then deduct life time decay coefficient value by concrete surplus working life and obtain up-to-date concrete surplus working life, and using the concrete surplus working life of up-to-date concrete surplus working life as clarifier filter screen;
S24: by concrete surplus working life compared with lifetime limitation threshold value, when concrete surplus working life equals default lifetime limitation threshold value, reminding user to replace clarifier filter screen.
10. the monitoring method in clarifier filter screen life-span as claimed in claim 8, is characterized in that: described air quality detector is particle sensor.
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