CN206463606U - Filter replacement alarm set - Google Patents
Filter replacement alarm set Download PDFInfo
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- CN206463606U CN206463606U CN201621039547.3U CN201621039547U CN206463606U CN 206463606 U CN206463606 U CN 206463606U CN 201621039547 U CN201621039547 U CN 201621039547U CN 206463606 U CN206463606 U CN 206463606U
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Abstract
The utility model belongs to filter technology field, and there is provided a kind of filter replacement alarm set.Filter replacement alarm set of the present utility model includes concentration sensor, data processor and signal generator；Wherein described concentration sensor is connected with data processor, and the signal generator is connected with data receiving processor；Filter replacement alarm set of the present utility model judges whether to need to change filter, improves the accuracy of filter replacement timeliness by monitoring the concentration of each composition in fluid in real time.
Description
Technical field
The utility model is related to filtration art, and in particular to a kind of filter replacement alarm set.
Background technology
With the improvement of living standards, people are purified using filtering flows such as water purifier, air purifiers more and more
Equipment.
Wherein most cleaning equipment, the fixation life time that is determined simply by factory determines whether filter needs
Change.Because each local air pollution rule and composition difference are very big, so using the function just in nonproductive area
Error is very big.
Wherein some equipment is mainly by monitoring real time power consumption or voltage or electric current of motor etc. in clarifier
Similar means, carry out the decline that indirect monitoring motor load is increased and produced with plugged filter degree.When these phases of motor
The index of pass drops to a limit value, then reminds user to change filter.The problem of method of this species is maximum is, when user makes
After filter type is changed, for example, the filter based on fine particle will be filtered, be replaced with the volatile gaseous pollution of filtering
Significant changes occur for the filter based on thing (VOC), the physical arrangement of filter, material proportion, then such a method is preset
Limit value will lose accuracy and practical significance.
Utility model content
For defect of the prior art, the utility model provides filter replacement alarm set, and filtering is judged to improve
Whether device needs the accuracy changed.
The filter replacement alarm set that the utility model is provided, the filter replacement alarm set is sensed including concentration
Device, data processor and signal generator；
Wherein described concentration sensor is connected with data processor, and the signal generator is connected with data processor；
The concentration sensor is used to detect in the fluid before input filter the concentration of composition and is sent to data processing
Device；
The data processor is used for the composition for analyzing and processing fluid before the filtering that the concentration sensor is detected
Change in concentration trend and according to analysis result judge whether to the signal generator send trigger signal；
The signal generator is used to launch filter more after the trigger signal that the data processor is sent is received
Change alerting signal.
Alternatively, the data processor includes dsp chip, ARM chips or single-chip microcomputer.
Alternatively, the data processor and signal generator are integrated on a pcb board.
Alternatively, the signal generator includes the one or more of light-emitting component, sound components and signal radiated element.
Alternatively, the concentration sensor includes dust sensor and gas sensor.
Alternatively, the data processor includes：
First memory, each composition in a predetermined period that the concentration sensor received for recording is sent
Concentration values
Computing chip, it is each in the predetermined period that the concentration sensor received of record is sent for calculating
The curve that the concentration values correspondence time of composition is formed；
The song that the wherein first concentration values correspondence time for changing each composition in latter predetermined period of filter is formed
Line is designated as the first curve；
What the concentration values correspondence time of each composition in predetermined period after replacing one predetermined period of filter was formed
Curve is designated as the second curve；
The computing chip is additionally operable to calculate the ratio of the slope of second curve and the point of the first curve same concentration value
Value；
First comparator, for judging whether the ratio is less than default value；
Trigger, for when the ratio is less than default value, trigger signal to be launched to the signal generator.
Alternatively, the computing chip is additionally operable to calculate on second curve and the first curve 2 points in same time period
The ratio of the slope of connecting line.
Alternatively, the data processor also includes：
Second comparator, for judging whether a concentration value only exists a slope value on second curve；
First processor, for when a concentration value is the presence of multiple slope values on second curve, excluding the concentration
Value.
Alternatively, the data processor also includes：
3rd comparator, for judging whether the slope value of a concentration value on second curve is more than 0；
When the slope value that the first processor is additionally operable to a concentration value on second curve is more than 0, this is excluded dense
Angle value.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described.In all of the figs, it is similar
Element or part are general by similar reference mark.In accompanying drawing, each element or part might not be according to actual ratios
Draw.
Fig. 1 shows the structured flowchart for the filter replacement alarm set that the utility model embodiment is provided；
Fig. 2 shows the utility model embodiment, the corresponding time shape in fluid concentrations compositional data and the judgement cycle
Into curve and when choosing equal concentrations data, the distribution schematic diagram put on curve；
Fig. 3 shows the utility model embodiment, the corresponding time shape in fluid concentrations compositional data and the judgement cycle
Into curve；And in the curve, when being selected from the starting timing length identical time in cycle, the distribution signal put on curve
Figure；
Fig. 4 shows a kind of simplified way schematic diagram of the curvature estimation of Chosen Point on curve in figure 3.
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is intended only as, and this reality can not be limited with this
With new protection domain.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this reality
The ordinary meaning understood with new one of ordinary skill in the art.
Fig. 1 shows a kind of structural frames for filter replacement alarm set that the utility model first embodiment is provided
Figure.As shown in figure 1, including concentration sensor 100, number according to the filter replacement alarm set of the utility model first embodiment
According to processor 200 and signal generator 300；
Wherein described concentration sensor 100 is connected with data processor 200, and the data processor 200 occurs with signal
Device 300 is connected；
The concentration sensor 100 is used to detect in the fluid before input filter the concentration of composition and is sent at data
Manage device 200；
In the present embodiment, flowed into and flowed out after filtration from the filter by filtering fluid, the concentration sensor
100 are arranged on before filter, connect the data and connect reason device 200, and export the fluid composition concentration data into before filter
Reason device 200 is connect to the data.
It is understood that the concentration sensor includes one or more detecting elements, such as dust sensor and gas
Sensor, can detect the concentration of one or more compositions in the fluid.
The data processor 200 is used to analyze and process fluid before the filtering that the concentration sensor 100 is detected
Composition change in concentration trend and according to analysis result judge whether to the signal generator 300 send trigger signal；
The data processor 200 records the concentration data of each judgement cycle from starting to end, calculates described
The curve that concentration data is formed with the corresponding time in the judgement cycle, and the equal concentration data is contrasted at two or two
The slope of corresponding point position on the curve in the above different judgement cycles, so as to be judged by the reduced value of the slope
The signal generator 300, which is triggered, when needing and change to filter sends cue.
It is understood that one kind in the fluid that the data processor 200 can be detected according to concentration sensor 100
Or the change in concentration trend of Multiple components determines the need for changing filter.
The data processor 200 includes：
First memory, each composition in a predetermined period that the concentration sensor received for recording is sent
Concentration values；
In the present embodiment, as shown in Fig. 2 block curve is in a judgement cycle after the filter more renewed, stream
The benchmark c-t curves 20 of corresponding moment t formation of the bulk concentration compositional data c with judging the cycle, the judgement cycle is referred to as benchmark and sentenced
The disconnected cycle；
Alternatively, select after the filter that more renews every time, the purification data that clarifier worked in 36 hours were calculated
The benchmark c-t curves 20 formed before filter by filtering fluid composition concentration c with corresponding moment t；
In Fig. 2 dashed curve be filter work certain time after another judgement cycle in, with filter efficiency
Decline, the real-time c-t curves 21 formed in fluid concentrations compositional data c with the corresponding moment t in the judgement cycle are described another
The individual judgement cycle is referred to as the real-time judge cycle；
The slope of curve on the c-t curves at arbitrfary point is k；
Within the real-time judge cycle, the concentration value c1 that data processor 200 is read is chosen, has been stored by calling
The data of curve 20, calculate the slope 22 for obtaining point on its homologous thread 20, referred to as k0；On concentration value c1 homologous threads 21
Point slope 23, referred to as k1；Data processor 200 calculate k1 and k0 ratio, and with preset value p (0<P≤1) compare,
If k1/k0<P, then trigger signal generator 300 send cue, remind user's cleaning or change filter.
Alternatively, to make judged result more accurate, selection interval can be set 12 hours, it is continuous two or more
Judge that the cycle obtains foundation of the equifinality for trigger signal generator 300.
Cleaning equipment start shooting when always timing read and store each moment t and its corresponding filtering before fluid composition it is dense
Spend c.After the judgement cycle starts, real-time c-t curves in this real-time judge cycle are calculated by data processor 200 first, then
Choose a concentration data on the curve and, as the slope of the corresponding points on c1, and calculated curve, be designated as k1.
Then, data processor 200 judges whether k1 is less than or equal to 0.If k1 is more than 0, give up the point data, continue
The concentration data at next moment is read, and calculates the corresponding slope of curve of next concentration data, will up to slope≤0
The slope is designated as k1.
Then, data processor 200 calculates the benchmark c-t curves for judging cycle when just updating filter screen, and calculates and c1
The slope of equal concentrations corresponding points is designated as k0, judges whether k0 is less than or equal to 0.If k1 is more than 0, give up the point data, after
Resume studies and take the concentration data at next moment, and calculate next concentration data corresponding slope of curve on benchmark c-t curves,
Until slope≤0, k0 is designated as by the slope.
Hereafter, data processor 200 calculate k1 and k0 ratio, and with preset value p (0<P≤1) compare, if k1/k0<
P, then trigger signal generator 300 send cue, remind user's cleaning or change filter；If k1/k0 >=p, say
Bright now filter clogging effect still has qualified detergent power, without changing, and data processor 200 starts next judgement week
Phase.
Computing chip, for calculating in the predetermined period that the concentration sensor 100 received of record is sent
Each composition concentration values correspondence the time formed curve；
The song that the wherein first concentration values correspondence time for changing each composition in latter predetermined period of filter is formed
Line is designated as the first curve；
What the concentration values correspondence time of each composition in predetermined period after replacing one predetermined period of filter was formed
Curve is designated as the second curve；
The computing chip is additionally operable to calculate the ratio of the slope of second curve and the point of the first curve same concentration value
Value；
First comparator, for judging whether the ratio is less than default value；
The slope of curve k of any point (tx, cx) calculating has two ways on the curve：
Constituent concentration c in this cycle, is fitted to many by mode one by data processor 200 with corresponding moment t data
Item formula function c=f (t), then tries to achieve the functional derivative dc/dt of point (tx, cx) on curve, the derivative value is that the curve exists
The slope at point (tx, cx) place；
Trigger, for when the ratio is less than default value, trigger signal to be launched to the signal generator 300.
The computing chip is additionally operable to calculate on second curve and the first curve 2 connecting lines in same time period
Slope ratio.
Mode two, line segment 41 as shown in Figure 4, be between moment t41 and moment t42, on curve 20 corresponding points it
Between connection oblique line, the slope of the oblique line can be used as k0 in mode two；Line segment 42 be between moment t41 and moment t42,
Connection oblique line on curve 21 between corresponding points, the slope of the oblique line can be used as k1 in mode two.
The data processor 200 also includes：
Second comparator, for judging whether a concentration value only exists a slope value on second curve；
First processor, for when a concentration value is the presence of multiple slope values on second curve, excluding the concentration
Value.
The data processor 200 also includes：
3rd comparator, for judging whether the slope value of a concentration value on second curve is more than 0；
When the slope value that the first processor is additionally operable to a concentration value on second curve is more than 0, this is excluded dense
Angle value.
In the present embodiment, to exclude by the larger external interference of filtering fluid composition, the curve can only be selected
Descending branch is used as comparison other.When data processor 200 calculates obtained certain corresponding point curve slope k 1 of a concentration value c1>
0, or k0>Slope 24 in 0, such as Fig. 2, and the slope 33 in Fig. 3, then give up the point data, continues to read next concentration
Data, and calculate the corresponding slopes of curve of next concentration data c1, then will now ratio k 1/k0 until k1≤0, and k0≤0
It is considered as effectively, continues judgement flow below.
The signal generator 300 is used to launch filter after the trigger signal that the data processor is sent is received
Change alerting signal.
Data processor 200 records the concentration data of each judgement cycle from starting to end, calculates the concentration
The curve that data are formed with the corresponding time in the judgement cycle, and the equal concentration data is contrasted at two or more
The slope of corresponding point position on the curve in the different judgement cycles, so as to be determined by the reduced value of the slope
Whether filter needs to change, and triggering the signal generator 300 when the filter needs and changed sends cue.
The data processor 200 includes dsp chip, ARM chips or single-chip microcomputer.
The data processor 200 and signal generator 300 are integrated on a pcb board.
The signal generator 300 includes the one or more of light-emitting component, sound components and signal radiated element.
In the present embodiment, when the data processor 200 launches trigger signal to the signal generator, the letter
Number generator transmitting alerting signal, very row user carries out the replacing of filter, wherein the alerting signal include sound, illumination and
Information alert.
The concentration sensor 100 includes dust sensor and gas sensor.
Unless specifically stated otherwise, part and the relative step of step, the digital table otherwise illustrated in these embodiments
Scope of the present utility model is not intended to limit up to formula and numerical value.
In all examples being illustrated and described herein, unless otherwise prescribed, any occurrence should be construed as merely
Exemplary, not as limitation, therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, can be by others side in several embodiments provided herein, it should be understood that disclosed device
Formula is realized.Device embodiment described above is only schematical, for example, the division of the unit, only one kind are patrolled
Collect function to divide, there can be other dividing mode when actually realizing, in another example, multiple units or component can combine or can
To be integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or discussed each other
Coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of device or unit by some communication interfaces
Connect, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in the utility model each embodiment can be integrated in a processing unit,
Can be that unit is individually physically present, can also two or more units it is integrated in a unit.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type, it all should cover among claim of the present utility model and the scope of specification.
Claims (9)
1. a kind of filter replacement alarm set, it is characterised in that the filter replacement alarm set include concentration sensor,
Data processor and signal generator；
Wherein described concentration sensor is connected with data processor, and the signal generator is connected with data processor；
The concentration sensor is used to detect in the fluid before input filter the concentration of composition and is sent to data processor；
The data processor is used to analyze and process the dense of the composition of fluid before the filtering that the concentration sensor is detected
Degree variation tendency simultaneously judges whether to send trigger signal to the signal generator according to analysis result；
The signal generator is used for the transmitting filter replacement after the trigger signal that the data processor is sent is received and carried
Awake signal.
2. filter replacement alarm set according to claim 1, it is characterised in that the data processor includes DSP
Chip, ARM chips or single-chip microcomputer.
3. filter replacement alarm set according to claim 1, it is characterised in that data processor and the signal hair
Raw device is integrated on a pcb board.
4. filter replacement alarm set according to claim 1, it is characterised in that the signal generator includes luminous
Element, sound components and signal radiated element it is one or more.
5. filter replacement alarm set according to claim 1, it is characterised in that the concentration sensor includes dust
Sensor and gas sensor.
6. filter replacement alarm set according to claim 1, it is characterised in that the data processor includes：
First memory, for recording the dense of each composition in the predetermined period that the concentration sensor that receives is sent
Number of degrees value
Computing chip, for calculating each composition in the predetermined period that the concentration sensor received of record is sent
Concentration values correspondence the time formed curve；
The curve note that the wherein first concentration values correspondence time for changing each composition in latter predetermined period of filter is formed
For the first curve；
The curve that the concentration values correspondence time of each composition in predetermined period after replacing one predetermined period of filter is formed
It is designated as the second curve；
The computing chip is additionally operable to calculate the ratio of the slope of second curve and the point of the first curve same concentration value；
First comparator, for judging whether the ratio is less than default value；
Trigger, for when the ratio is less than default value, trigger signal to be launched to the signal generator.
7. filter replacement alarm set according to claim 6, it is characterised in that the computing chip is additionally operable to calculate
On second curve and the first curve in same time period the slope of 2 connecting lines ratio.
8. the filter replacement alarm set according to claim 6 or 7, it is characterised in that the data processor is also wrapped
Include：
Second comparator, for judging whether a concentration value only exists a slope value on second curve；
First processor, for when a concentration value is the presence of multiple slope values on second curve, excluding the concentration value.
9. filter replacement alarm set according to claim 8, it is characterised in that the data processor also includes：
3rd comparator, for judging whether the slope value of a concentration value on second curve is more than 0；
When the slope value that the first processor is additionally operable to a concentration value on second curve is more than 0, the concentration value is excluded.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039547.3U CN206463606U (en) | 2016-09-06 | 2016-09-06 | Filter replacement alarm set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039547.3U CN206463606U (en) | 2016-09-06 | 2016-09-06 | Filter replacement alarm set |
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| CN206463606U true CN206463606U (en) | 2017-09-05 |
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| CN201621039547.3U Active CN206463606U (en) | 2016-09-06 | 2016-09-06 | Filter replacement alarm set |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114076334A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076328A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076330A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076333A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076332A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
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2016
- 2016-09-06 CN CN201621039547.3U patent/CN206463606U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076334A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076328A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076330A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076333A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076332A (en) * | 2020-08-19 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer-readable storage medium |
| CN114076332B (en) * | 2020-08-19 | 2023-09-08 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer readable storage medium |
| CN114076333B (en) * | 2020-08-19 | 2023-09-08 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer readable storage medium |
| CN114076330B (en) * | 2020-08-19 | 2023-09-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer readable storage medium |
| CN114076328B (en) * | 2020-08-19 | 2023-09-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood, control method thereof and computer readable storage medium |
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