CN108254417A - Air detecting device, Detection of Air Quality method and computer readable storage medium - Google Patents
Air detecting device, Detection of Air Quality method and computer readable storage medium Download PDFInfo
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- CN108254417A CN108254417A CN201810006455.2A CN201810006455A CN108254417A CN 108254417 A CN108254417 A CN 108254417A CN 201810006455 A CN201810006455 A CN 201810006455A CN 108254417 A CN108254417 A CN 108254417A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/022—Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
Abstract
The present invention proposes a kind of air detecting device, Detection of Air Quality method and computer readable storage medium, wherein, Detection of Air Quality method includes：In the detection gas content for detecting specified type gas, the usage time of micro porous filtration module is determined；Attenuation compensation parameter is generated according to usage time and default attenuation compensation formula；Detection gas content is performed according to attenuation compensation parameter and corrects operation, to obtain repairing gas content.By technical scheme of the present invention, the amendment of specified type gas content can be carried out according to attenuation compensation parameter, to reduce due to detecting inaccurate probability caused by the blocking of micro porous filtration module.
Description
Technical field
The present invention relates to household electrical appliance technical field, in particular to a kind of air detecting device, a kind of air quality
Detection method and a kind of computer readable storage medium.
Background technology
In the relevant technologies, air detecting device is usually by setting semiconductor or chemical diaphragm, according to surface oxidation feelings
Condition and change in resistance are realized to the ingredient identification of specified one or more kinds of gases and content detection.Due to gas in atmospheric environment
The complexity and diversity of body type, multiple gases mixed distribution cause specified type gas to be examined in practical detection environment
There are following defects during surveying：
(1) when detecting specified type gas, since there are interfering substance, the detected value that gas sensor obtains easily is made
Into deviation, the failure of sensor relative value and absolute figure can be caused when deviation is excessive.
(2) multiple gases are detected using a sensor, there is also larger errors and defect for itself.
Invention content
The present invention is directed at least solve one of technical problem present in the prior art or the relevant technologies.
For this purpose, an object of the present invention is to provide a kind of new air detecting device, by increasing micro porous filtration
Gas to be detected is filtered by module by micro porous filtration module, and the detection of specified type gas is made so as to filter out
Into the interfering substance of interference, the gas to be detected after filtering is delivered to gas sensing module, to be examined by gas sensing module
Content of the specified type gas in gas to be detected is surveyed, thereby reduces non-detection types of gases in detection process to specified
The interference of types of gases detection, the corresponding accuracy for improving the content detection to specified type gas.
It is another object of the present invention to correspondences to propose a kind of Detection of Air Quality method.
Another object of the present invention is that correspondence proposes air detecting device and computer readable storage medium.
To realize above-mentioned at least one purpose, according to the first aspect of the invention, it is proposed that a kind of air detecting device, packet
It includes：Air intake vent, for importing gas to be detected；Micro porous filtration module, is correspondingly arranged with air intake vent, micro porous filtration module for pair
Gas to be detected is filtered, to filter out at least one interfering substance；Gas sensing module, it is corresponding with micro porous filtration module to set
It puts, gas sensing module is used to detect content of the specified type gas in gas to be detected.
In the technical scheme, by increasing micro porous filtration on the basis of air quality detecting device in the prior art
Gas to be detected is filtered by module by micro porous filtration module, and the detection of specified type gas is made so as to filter out
Into the interfering substance of interference, the gas to be detected after filtering is delivered to gas sensing module, to be examined by gas sensing module
Content of the specified type gas in gas to be detected is surveyed, thereby reduces non-detection types of gases in detection process to specified
The interference of types of gases detection, the corresponding accuracy for improving the content detection to specified type gas.
By setting micro porous filtration modular filtration interfering substance, when detecting different types of gas, using different characteristics
Micro porous filtration module, realize the specificity detected to specified type gas, with reduce it is in the prior art detection miss
Difference.
Wherein, specified type gas can be formaldehyde (HCOH), benzene, sulfur dioxide, nitrogen dioxide etc..
In addition, air intake vent, micro porous filtration module and gas sensing module are set gradually according to gas flow.
In the above-mentioned technical solutions, it is preferable that further include：Processor, is connected to gas sensor module, and processor is used for
Determine that gas to be detected passes through micro porous filtration module according to the usage time of micro porous filtration module and default attenuation compensation formula
Percent of pass, to generate attenuation compensation parameter according to percent of pass, and according to attenuation compensation parameters revision content.
In the technical scheme, by setting processor, on the one hand, the clocking capability record micropore of processor can be used
The usage time of filtering module, on the other hand, as time goes by, since the surface of micro porous filtration module can depositing contaminants
Grain, thus gas to be detected micro porous filtration module passability also worse and worse, processor can be according to micro porous filtration module
Usage time and default attenuation compensation formula determine corresponding transmitance, and attenuation compensation parameter is generated according to transmitance,
And then the amendment of specified type gas content can be carried out according to attenuation compensation parameter, to reduce since micro porous filtration module blocks
Caused by detect inaccurate probability.
In any of the above-described technical solution, it is preferable that further include：Device box body, the side of device box body offer inlet air
Mouthful, micro porous filtration module is provided on air intake vent, gas sensing module is provided in device box body；The opposite side of device box body with
Air intake vent correspondence offers air outlet, and air outlet is for the gas after export detection.
In the technical scheme, it by the way that air detecting device is configured to box body structure, is opened up in the side of device box body
There is air intake vent, air outlet is offered in corresponding opposite side, to realize that gas circulates, micro porous filtration mould is set at air intake vent
Block sets gas sensing module in air intake vent, will import air-sensitive by the gas to be detected after micro porous filtration modular filtration
Sensing module realizes the leakproofness of gas detection process by box body structure, to prevent outside from not filtering gas transport to air-sensitive
Sensing module interferes the detection of specified type gas.
In any of the above-described technical solution, it is preferable that further include：Air duct water conservancy diversion module is set to the outside of device box body,
And air intake vent is connected to, air duct water conservancy diversion module includes diversion fan, and diversion fan is used to gas to be detected being discharged into air intake vent.
It in the technical scheme, can be with by setting air duct water conservancy diversion module in micro porous filtration module, in the water conservancy diversion module of air duct
Including diversion fan, under the driving of diversion fan, external gas to be detected is entered into micro porous filtration module by air intake vent
It is filtered, and the gas after filtering is imported into the gas sensing module in device box body, to realize specified type gas
The detection of ingredient and content, after detection operation is completed, gas is discharged under the further driving of diversion fan by air outlet,
To form wind-guiding cycle in detection process.
In any of the above-described technical solution, it is preferable that micro porous filtration module includes multi-layer microporous filter paper, multi-layer microporous filter paper
Including at least one of micropore filtering film, ion filter film and molecular filtration membrane, wherein, micropore filtering film is used to filter out powder
Dirt, for ion filter film for filtering volatile interference gas, molecular filtration membrane is more than specified type for filtering out molecular diameter
The interfering substance of gas.
In the technical scheme, micro porous filtration module can include multi-layer microporous filter paper, wherein, micropore filter paper can include
Multi-layer microporous filter paper, including at least one of micropore filtering film, ion filter film and molecular filtration membrane, for example, in specified class
When type gas is water-insoluble gas, water-soluble interfering substance is filtered out, and then can be according to not using water-soluble micropore filter paper
The gas of same type, using different micropore filter paper, to be filtered step and/or according to molten according to the size of gas molecule
The characteristics such as solution property are filtered step, while specified type gas to be detected is retained, can improve measurement flexibility,
Measurement range and measurement accuracy.
In any of the above-described technical solution, it is preferable that gas sensing module includes：Semiconductor gas sensor is connected to place
Device is managed, wherein, processor determines the content of specified type gas according to the change in resistance of semiconductor gas sensor.
In the technical scheme, by the way that gas sensing module is set as semiconductor gas sensor, in the pressure of gas sensor
Transistor surface coats the air-sensitive film of one layer of absorption specified type gas, passes through air-sensitive film and specified type gas phase interaction
With the film quality and conductivity for making air-sensitive film change, and cause the surface acoustic wave frequency shifts of piezo-electric crystal, gas
Bulk concentration is different, and film quality and conductivity variation degree are also different, that is, the variation for causing surface acoustic wave frequency is also different, passes through
The variation of excusing from death surface wave frequency rate is measured, determines the content of specified type gas.
According to the second aspect of the invention, it is proposed that a kind of Detection of Air Quality method, including：Detecting specified type
During the detection gas content of gas, the usage time of micro porous filtration module is determined；It is public according to usage time and default attenuation compensation
Formula generates attenuation compensation parameter；Detection gas content is performed according to attenuation compensation parameter and corrects operation, is contained with obtaining repairing gas
Amount.
In the technical scheme, as time goes by, since depositing contaminants particle is understood on the surface of micro porous filtration module, because
This gas to be detected micro porous filtration module passability also worse and worse, by recording the usage time of micro porous filtration module,
Corresponding transmitance is determined, and according to transmitance with the usage time according to micro porous filtration module and default attenuation compensation formula
Generate attenuation compensation parameter, and then can according to attenuation compensation parameter carry out specified type gas content amendment, with reduce by
Inaccurate probability is detected caused by micro porous filtration module blocks.
In the above-mentioned technical solutions, it is preferable that presetting attenuation compensation formula is：Y=1-lin2x, wherein, y is mended for attenuation
Parameter is repaid, x is usage time.
In the technical scheme, micro porous filtration module includes multi-layer microporous filter paper, as multi-layer microporous filter paper continuously carries out
Filter operation, can be according to the experiment of the passability of micropore filter paper since interference particle deposition causes passability to reduce on filter paper
Data draw matched curve, and to determine default attenuation compensation formula according to matched curve, i.e. matched curve is approximately y=1-
Lin2x, y are the percentage for characterizing permeability, and are used as attenuation compensation parameter, and x is usage time, so as to according to micro-
The usage time of hole filter module determines corresponding attenuation compensation parameter, to perform compensation calculation according to attenuation compensation parameter, into
And promote the accuracy of the content detection of specified type gas.
In any of the above-described technical solution, it is preferable that detection gas content is performed according to attenuation compensation parameter and corrects behaviour
Make, to obtain repairing gas content, specifically include：Gas content is performed according to correction formula and corrects operation, wherein, correction formula
ForS' is detection gas content to correct gas content, S.
In the technical scheme, by regarding the percentage for being used to characterize permeability as attenuation compensation parameter, attenuation compensation
Parameter is bigger, and the correction amount of gas content is smaller, and attenuation compensation parameter is smaller, and the correction amount of gas content is bigger, so as to fulfill
The accurate amendment of gas content detected value.
For example, in the content for detecting formaldehyde gas, when it is 50% to calculate the percentage of permeability of current filter paper,
Then by the data feedback to processor, using the inverse ratio of percentage to as correction factor, i.e., actually the content of formaldehyde gas is more
Close to twice of measurement data.
In any of the above-described technical solution, it is preferable that in the gas content for detecting specified type gas, determine micropore
Before the usage time of filtering module, further include：Detect the change in resistance amount of the semiconductor gas sensor in air detecting device；Root
Detection gas content is determined according to change in resistance amount.
In the technical scheme, specified type gas is adsorbed by coating one layer in the piezoelectric crystal surface of gas sensor
Air-sensitive film is interacted by air-sensitive film and specified type gas, and the film quality and conductivity for making air-sensitive film occur
Variation causes the surface acoustic wave frequency shifts of piezo-electric crystal, and gas concentration is different, film quality and conductivity variation degree
Also different, that is, the variation for causing surface acoustic wave frequency is also different, by measuring the change in resistance amount of conductor gas sensor, with correspondence
The detection function of the content of specified type gas is realized in the variation of ultrasonic surface wave frequency rate.
According to the third aspect of the invention we, it is proposed that a kind of air detecting device, including：Processor；It is handled for storage
The memory of device executable instruction, wherein, it is realized when processor is for performing the executable instruction stored in memory as above-mentioned
The step of Detection of Air Quality method described in any one of technical solution of second aspect.
According to the fourth aspect of the invention, it is proposed that a kind of computer readable storage medium is stored thereon with computer journey
Sequence realizes the air quality as described in any one of technical solution of above-mentioned second aspect when computer program is executed by processor
The step of detection method.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Significantly and it is readily appreciated that, wherein：
Fig. 1 shows the schematic block diagram of the air detecting device of one embodiment of the present of invention；
Fig. 2 shows the partial structural diagrams of the air detecting device of one embodiment of the present of invention；
Fig. 3 shows the flow diagram of the Detection of Air Quality method of one embodiment of the present of invention；
Fig. 4 shows the flow diagram of the Detection of Air Quality method of an alternative embodiment of the invention；
Fig. 5 shows that the fitting of the relationship between characterization percent of pass and usage time according to the specific embodiment of the invention is bent
Line chart；
Fig. 6 shows the schematic block diagram of the air detecting device of an alternative embodiment of the invention.
Specific embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The air detecting device of first embodiment of the invention is specifically described with reference to Fig. 1 and Fig. 2.
As shown in Figure 1, air detecting device according to embodiments of the present invention, including：Air detecting device, including：Inlet air
Mouthful, for importing gas to be detected；Micro porous filtration module 102, is correspondingly arranged with air intake vent, micro porous filtration module 102 for pair
Gas to be detected is filtered, to filter out at least one interfering substance；Gas sensing module 104 is right with micro porous filtration module 102
It should set, gas sensing module 104 is used to detect content of the specified type gas in gas to be detected.
In this embodiment, by increasing micro porous filtration mould on the basis of air quality detecting device in the prior art
Gas to be detected is filtered by block 102 by micro porous filtration module 102, and specified type gas is examined so as to filter out
The interfering substance interfered is surveyed, the gas to be detected after filtering is delivered to gas sensing module 104, to pass through gas sensing
Module 104 detects content of the specified type gas in gas to be detected, thereby reduces non-detection types of gases and was detecting
To the interference of specified type gas detection, the corresponding accuracy for improving the content detection to specified type gas in journey.
On the other hand, by the way that micro porous filtration module 102 is set to filter interfering substance, when detecting different types of gas,
Using the micro porous filtration module 102 of different characteristics, the specificity detected to specified type gas is realized, to reduce the prior art
Present in detection error.
Wherein, interfering substance includes dust particles and interference gas.
Specified type gas can be formaldehyde (HCOH), benzene, sulfur dioxide, nitrogen dioxide etc..
In addition, air intake vent, micro porous filtration module 102 are set gradually with gas sensing module 104 according to gas flow.
In the above embodiment, it is preferable that it further includes：Processor, is connected to gas sensor module, and processor is used for root
Determine that gas to be detected passes through micro porous filtration module according to the usage time and default attenuation compensation formula of micro porous filtration module 102
102 percent of pass, to generate attenuation compensation parameter according to percent of pass, and according to attenuation compensation parameters revision content.
In this embodiment, by setting processor, on the one hand, the clocking capability record micropore mistake of processor can be used
Filter module 102 usage time, on the other hand, as time goes by, due to the surface of micro porous filtration module 102 can deposit it is miscellaneous
Matter particle, thus gas to be detected micro porous filtration module 102 passability also worse and worse, processor can be according to micropore mistake
It filters the usage time of module 102 and default attenuation compensation formula determines corresponding transmitance, and generate and decay according to transmitance
Compensating parameter, and then the amendment of specified type gas content can be carried out according to attenuation compensation parameter, to reduce due to micropore mistake
Filter module 102 detects inaccurate probability caused by blocking.
Specifically, by taking formaldehyde gas as an example, as time goes by, the passability of formaldehyde gas can also become increasingly
Difference carries out supplement calculation, to realize the amendment of content according to the content of matched curve PARA FORMALDEHYDE PRILLS(91,95).
As shown in Figure 1, in any of the above-described embodiment, it is preferable that further include：Device box body 106, device box body 106
Side offers air intake vent, and micro porous filtration module 102 is provided on air intake vent, gas sensing mould is provided in device box body 106
Block 104；The opposite side of device box body 106 is corresponding with air intake vent to offer air outlet 108, after air outlet 108 is for exporting detection
Gas.
In this embodiment, it by the way that air detecting device is configured to box body structure, is opened up in the side of device box body 106
There is air intake vent, air outlet 108 is offered in corresponding opposite side, to realize that gas circulates, micro porous filtration is set at air intake vent
Module 102 sets gas sensing module 104, the gas to be detected after being filtered by micro porous filtration module 102 in air intake vent
Body imports gas sensing module 104, and the leakproofness of gas detection process is realized by box body structure, to prevent outside from not crossing air filtration
Body is transmitted to gas sensing module 104 and the detection of specified type gas is interfered.
As shown in Figure 1, in any of the above-described embodiment, it is preferable that further include：Air duct water conservancy diversion module 110, is set to device
The outside of box body 106, and air intake vent is connected to, air duct water conservancy diversion module 110 includes diversion fan, and diversion fan is used for will be to be detected
Gas is discharged into air intake vent.
In this embodiment, by setting air duct water conservancy diversion module 110, air duct water conservancy diversion module 110 in micro porous filtration module 102
In can include diversion fan, under the driving of diversion fan, external gas to be detected is entered into micropore mistake by air intake vent
Filter module 102 is filtered, and the gas after filtering is imported into the gas sensing module 104 in device box body 106, to realize
The ingredient of specified type gas and the detection of content, after detection operation is completed, gas is under the further driving of diversion fan
It is discharged by air outlet 108, to form wind-guiding cycle in detection process.
As shown in Fig. 2, in any of the above-described embodiment, it is preferable that micro porous filtration module 102 includes：Multi-layer microporous filter paper,
Including at least one of micropore filtering film 1022, ion filter film 1024 and molecular filtration membrane 1026, wherein, micropore filtering film
1022 are set to outermost layer, and for filtering dust, ion filter film 1024 is set to middle layer, for filtering volatile interference
Gas, molecular filtration membrane 1026 are set to innermost layer, for filtering out the interfering substance that molecular diameter is more than specified type gas.
In the technical scheme, micro porous filtration module can include multi-layer microporous filter paper, wherein, micropore filter paper can include
Multi-layer microporous filter paper, including at least one of micropore filtering film 1022, ion filter film 1024 and molecular filtration membrane 1026, energy
Enough while specified type gas to be detected is retained, flexibility, measurement range and the measurement accuracy of measurement can be improved.
To detect formaldehyde (CH2O) for content, the interference particles such as PM2.5 and PM10 are filtered using micropore filtering film 1022,
When specified type gas is water-insoluble gas, water-soluble chaff interferent is filtered out using water-soluble ion filter film 1024
Matter, such as ethyl alcohol and hydrogen sulfide etc., further according to different types of gas, using different molecular filtration membranes 1026, with root
Step is filtered according to the size of gas molecule, for example further filter out micropore filtering film 1022 not filtering, and be insoluble in
Stupid (C6H6) particle of water.
Wherein, micropore filtering film 1022 be specifically as follows polytetrafluoroethylene (PTFE) (Poly tetra fluoroethylene,
PTFE), ion filter film 1024 can be reverse osmosis membrane, and molecular filtration membrane 1026 is specifically as follows inoranic membrane or organic polymer
Film.
In any of the above-described embodiment, it is preferable that gas sensing module 104 includes：Semiconductor gas sensor is connected to place
Device is managed, wherein, processor determines the content of specified type gas according to the change in resistance of semiconductor gas sensor.
In this embodiment, by the way that gas sensing module is set as semiconductor gas sensor, in the piezoelectricity of gas sensor
Plane of crystal coats the air-sensitive film of one layer of absorption specified type gas, passes through air-sensitive film and specified type gas phase interaction
With the film quality and conductivity for making air-sensitive film change, and cause the surface acoustic wave frequency shifts of piezo-electric crystal, gas
Bulk concentration is different, and film quality and conductivity variation degree are also different, that is, the variation for causing surface acoustic wave frequency is also different, passes through
The variation of excusing from death surface wave frequency rate is measured, determines the content of specified type gas.
The Detection of Air Quality method of second embodiment of the invention is specifically described with reference to Fig. 3 to Fig. 5.
As shown in figure 3, Detection of Air Quality method according to an embodiment of the invention, including：Step 302, it is examining
When measuring the detection gas content of specified type gas, the usage time of micro porous filtration module is determined；Step 304, according to using
Time generates attenuation compensation parameter with default attenuation compensation formula；Step 306, according to attenuation compensation parameter to detection gas content
It performs and corrects operation, to obtain repairing gas content.
In this embodiment, as time goes by, since depositing contaminants particle is understood on the surface of micro porous filtration module,
Gas to be detected micro porous filtration module passability also worse and worse, by recording the usage time of micro porous filtration module, with
Corresponding transmitance is determined, and give birth to according to transmitance according to the usage time of micro porous filtration module and default attenuation compensation formula
Into attenuation compensation parameter, so can according to attenuation compensation parameter carry out specified type gas content amendment, with reduce due to
Micro porous filtration module detects inaccurate probability caused by blocking.
In the above embodiment, it is preferable that default attenuation compensation formula is：Y=1-lin2x, wherein, y is attenuation compensation
Parameter, x are usage time.
In this embodiment, micro porous filtration module includes multi-layer microporous filter paper, as multi-layer microporous filter paper continuously carried out
Filter operates, since interference particle deposition causes passability to reduce on filter paper, as shown in figure 5, according to the passability of micropore filter paper
Experimental data draws multiple points, matched curve is drawn according to multiple points are corresponding, to determine default attenuation compensation according to matched curve
Formula, i.e. matched curve are approximately y=1-lin2x, and y is the percentage for characterizing permeability, and is used as attenuation compensation parameter,
X is usage time, so as to determine corresponding attenuation compensation parameter according to the usage time of micropore filter module, is declined with basis
Subtract compensating parameter and perform compensation calculation, and then promote the accuracy of the content detection of specified type gas.
In any of the above-described embodiment, it is preferable that detection gas content is performed according to attenuation compensation parameter and corrects operation,
To obtain repairing gas content, specifically include：Gas content is performed according to correction formula and corrects operation, wherein, correction formula isS' is detection gas content to correct gas content, S.
In this embodiment, by regarding the percentage for being used to characterize permeability as attenuation compensation parameter, attenuation compensation ginseng
Number is bigger, and the correction amount of gas content is smaller, and attenuation compensation parameter is smaller, and the correction amount of gas content is bigger, so as to fulfill gas
The accurate amendment of body content detection value.
For example, in the content for detecting formaldehyde gas, when it is 50% to calculate the percentage of permeability of current filter paper,
Then by the data feedback to processor, using the inverse ratio of percentage to as correction factor, i.e., actually the content of formaldehyde gas is more
Close to twice of measurement data.
In any of the above-described embodiment, it is preferable that in the gas content for detecting specified type gas, determine micropore mistake
Before the usage time for filtering module, further include：Detect the change in resistance amount of the semiconductor gas sensor in air detecting device；According to
Change in resistance amount determines detection gas content.
In this embodiment, by coating one layer of gas for adsorbing specified type gas in the piezoelectric crystal surface of gas sensor
Sensitive film, is interacted by air-sensitive film and specified type gas, and the film quality and conductivity for making air-sensitive film become
Change, cause the surface acoustic wave frequency shifts of piezo-electric crystal, gas concentration is different, film quality and conductivity variation degree
Difference, that is, the variation for causing surface acoustic wave frequency is also different, by measuring the change in resistance amount of conductor gas sensor, with corresponding super
The detection function of the content of specified type gas is realized in the variation of surface acoustic wave frequency.
As shown in figure 4, Detection of Air Quality method according to another embodiment of the invention, to calculate formaldehyde in air
For content, below scheme is specifically included：Step 402, air duct gas is by multi-layer microporous filter paper, and is rapidly reached dynamic balancing shape
State；Step 404, gas sensing resistance calculates the content of current specified type gas to be measured according to the variation of resistance value；Step
Rapid 406, according to the attenuation compensation formula of filter paper passability, percent of pass of the gas by filter paper is calculated according to usage time, with root
Error is compensated according to percent of pass；Step 408, the parameter after compensation is transmitted to processor, COMPREHENSIVE CALCULATING goes out specified class again
The percentage composition of type gas, specially S/y, S are the content of formaldehyde being calculated, and y is the percent of pass obtained according to number of days.
In this embodiment, by setting multi-layer microporous filter paper, the influential interfering substance of detection can be filtered,
So as to promote the accuracy of detection to specified type gas content；According to the passability of filter paper and the relationship of time, the inspection to gas
Measured value performs compensation calculation, reduces detection error caused by filter paper leak stopping；According to different specified type gas to be detected,
Use different multi-layer microporous filter paper, on the one hand, the interfering substance of larger particles can be filtered out according to the size of gas molecule,
On the other hand, can be filtered out according to characteristics such as dissolubilities has different deliquescent gases from formaldehyde gas, so as to improve
Flexibility, range and the precision of measurement.
Fig. 6 shows the schematic block diagram of the air detecting device of third embodiment of the invention.
As shown in fig. 6, air detecting device 60 according to a third embodiment of the present invention, including processor 602 and memory
604, wherein, the computer program that can be run on processor 602, wherein memory 604 and processing are stored on memory 604
It can be connected between device 602 by bus, it is real when the processor 602 is for performing the computer program stored in memory 604
The step of Detection of Air Quality method described in example is now performed as described above.
Step in the method for the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Unit module in the Detection of Air Quality method of the embodiment of the present invention can be merged, be drawn according to actual needs
Divide and delete.
According to an embodiment of the invention, it is proposed that a kind of computer readable storage medium is stored thereon with computer program,
The step of Detection of Air Quality method described in example is performed as described above is realized when the computer program is executed by processor.
Further, it is to be understood that any process described otherwise above or method are retouched in flow chart or herein
It states and is construed as, represent the executable finger for including one or more the step of being used to implement specific logical function or process
Module, segment or the part of the code of order, and the range of the preferred embodiment of the present invention includes other realization, wherein can
Not press sequence that is shown or discussing, including according to involved function by it is basic and meanwhile in the way of or in the opposite order,
Function is performed, this should understand by the embodiment of the present invention person of ordinary skill in the field.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) it uses or combines these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
It puts.The more specific example (non-exhaustive list) of computer-readable medium is including following：Electricity with one or more wiring
Connecting portion (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If for example, with hardware come realize in another embodiment, can be under well known in the art
Any one of row technology or their combination are realized：With for the logic gates to data-signal realization logic function
Discrete logic, have suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, the program when being executed, one or a combination set of the step of including embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, it can also
That each unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
The form that hardware had both may be used in block is realized, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and is independent product sale or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
Technical scheme of the present invention is described in detail above in association with attached drawing, the technical solution, by setting multi-layer microporous filter
Paper can be filtered the influential interfering substance of detection, so as to promote the accuracy of detection to specified type gas content；Root
According to the passability of filter paper and the relationship of time, compensation calculation is performed to the detected value of gas, reduces inspection caused by filter paper leak stopping
Survey error；According to different specified type gas to be detected, different multi-layer microporous filter paper is used, on the one hand, can basis
The size of gas molecule filters out the interfering substance of larger particles, on the other hand, can be filtered out according to characteristics such as dissolubilities with
Formaldehyde gas has different deliquescent gases, so as to improve the flexibility of measurement, range and precision.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of air detecting device, which is characterized in that including：
Air intake vent, for importing gas to be detected；
Micro porous filtration module is correspondingly arranged with the air intake vent, the micro porous filtration module be used for the gas to be detected into
Row filtering, to filter out at least one interfering substance；
Gas sensing module is correspondingly arranged with the micro porous filtration module, and the gas sensing module is used to detect specified type
Content of the gas in the gas to be detected.
2. air detecting device according to claim 1, which is characterized in that further include：
Processor, is connected to the gas sensor module, and the processor is used for the use according to the micro porous filtration module
Time determines percent of pass of the gas to be detected by the micro porous filtration module with default attenuation compensation formula, with according to institute
State percent of pass generation attenuation compensation parameter, and the content according to the attenuation compensation parameters revision.
3. air detecting device according to claim 1, which is characterized in that further include：
Device box body, the side of described device box body offer the air intake vent, the micropore mistake are provided on the air intake vent
Module is filtered, the gas sensing module is provided in described device box body；
The opposite side of described device box body is corresponding with the air intake vent to offer air outlet, after the air outlet is for exporting detection
Gas.
4. air detecting device according to claim 3, which is characterized in that further include：
Air duct water conservancy diversion module, is set to the outside of described device box body, and is connected to the air intake vent, the air duct water conservancy diversion module
Including diversion fan, the diversion fan is used to the gas to be detected being discharged into the air intake vent.
5. air detecting device according to claim 1, which is characterized in that the micro porous filtration module includes：
Multi-layer microporous filter paper, including at least one of micropore filtering film, ion filter film and molecular filtration membrane,
Wherein, the micropore filtering film is used for filtering dust, and the ion filter film is used to filter volatile interference gas, institute
Molecular filtration membrane is stated for filtering out the interfering substance that molecular diameter is more than the specified type gas.
6. air detecting device according to any one of claim 1 to 5, which is characterized in that the gas sensing module
Including：
Semiconductor gas sensor is connected to the processor,
Wherein, the processor determines containing for the specified type gas according to the change in resistance of the semiconductor gas sensor
Amount.
7. a kind of Detection of Air Quality method, suitable for air detecting device such as according to any one of claims 1 to 6,
It is characterized in that, the Detection of Air Quality method includes：
In the detection gas content for detecting specified type gas, the usage time of micro porous filtration module is determined；
Attenuation compensation parameter is generated according to the usage time and default attenuation compensation formula；
The detection gas content is performed according to the attenuation compensation parameter and corrects operation, to obtain repairing gas content.
8. Detection of Air Quality method according to claim 7, which is characterized in that the default attenuation compensation formula is：
Y=1-lin2x,
Wherein, the y is the attenuation compensation parameter, and the x is the usage time.
9. Detection of Air Quality method according to claim 7, which is characterized in that described according to the attenuation compensation parameter
The detection gas content is performed and corrects operation, to obtain repairing gas content, is specifically included：
The gas content is performed according to correction formula and corrects operation,
Wherein, the correction formula isThe S' is the amendment gas content, and the S contains for the detection gas
Amount.
10. the Detection of Air Quality method according to any one of claim 7 to 9, which is characterized in that described to detect
During the gas content of specified type gas, before the usage time for determining micro porous filtration module, further include：
Detect the change in resistance amount of the semiconductor gas sensor in the air detecting device；
The detection gas content is determined according to the change in resistance amount.
11. a kind of air detecting device, which is characterized in that including：
Processor；
For storing the memory of the processor-executable instruction, wherein, the processor is used to perform in the memory
It is realized during the executable instruction of storage such as the step of any one of claim 7 to 10 the method.
12. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
Such as right the step of wanting any one of 7 to 10 the method is realized when being executed by processor.
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| CN201810006455.2A CN108254417B (en) | 2018-01-04 | 2018-01-04 | Air detection device, air quality detection method, and computer-readable storage medium |
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| CN201810006455.2A CN108254417B (en) | 2018-01-04 | 2018-01-04 | Air detection device, air quality detection method, and computer-readable storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682858A (en) * | 2018-12-19 | 2019-04-26 | 苏州慧闻纳米科技有限公司 | A method of utilizing gas sensor real-time detection gas concentration |
| CN111006918A (en) * | 2019-12-19 | 2020-04-14 | 武汉羽芒智能科技有限公司 | Intelligent monitoring instrument for organic pollutants in atmospheric environment |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477387A (en) * | 2003-05-22 | 2004-02-25 | 上海交通大学 | Indoor air detection and purifying equipment |
| CN1603835A (en) * | 2003-08-06 | 2005-04-06 | 爱德华兹***技术有限公司 | Detector with dust filter and airflow monitor |
| CN102109487A (en) * | 2009-12-28 | 2011-06-29 | 华瑞科学仪器(上海)有限公司 | Ultra-low concentration gas sensor |
| CN103675206A (en) * | 2013-11-27 | 2014-03-26 | 中国船舶重工集团公司第七一八研究所 | System for detecting sulfur hexafluoride |
| CN104458825A (en) * | 2014-10-22 | 2015-03-25 | 武汉工程大学 | Oxygen gas sensitive element and detection method thereof |
| CN105717011A (en) * | 2016-02-01 | 2016-06-29 | 九阳股份有限公司 | Method for determining utilization rate of purification device of air purifier |
| CN105758990A (en) * | 2014-12-17 | 2016-07-13 | 国家电网公司 | Calibration system used for SF6 gas micro-water content detector in GIS |
| CN105980835A (en) * | 2013-12-02 | 2016-09-28 | 蒙斯大学 | Gas sensor |
| CN106093135A (en) * | 2016-06-02 | 2016-11-09 | 中国石油大学(华东) | A kind of Power Transformer Faults intelligent diagnostics device based on Graphene gas sensor array |
| CN106765989A (en) * | 2017-01-16 | 2017-05-31 | 广东美的制冷设备有限公司 | The replacing control method of air purifier and its airstrainer |
| CN206626752U (en) * | 2017-01-16 | 2017-11-10 | 广东美的制冷设备有限公司 | The monitoring device of air purifier and its airstrainer service life |
-
2018
- 2018-01-04 CN CN201810006455.2A patent/CN108254417B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477387A (en) * | 2003-05-22 | 2004-02-25 | 上海交通大学 | Indoor air detection and purifying equipment |
| CN1603835A (en) * | 2003-08-06 | 2005-04-06 | 爱德华兹***技术有限公司 | Detector with dust filter and airflow monitor |
| CN102109487A (en) * | 2009-12-28 | 2011-06-29 | 华瑞科学仪器(上海)有限公司 | Ultra-low concentration gas sensor |
| CN103675206A (en) * | 2013-11-27 | 2014-03-26 | 中国船舶重工集团公司第七一八研究所 | System for detecting sulfur hexafluoride |
| CN105980835A (en) * | 2013-12-02 | 2016-09-28 | 蒙斯大学 | Gas sensor |
| CN104458825A (en) * | 2014-10-22 | 2015-03-25 | 武汉工程大学 | Oxygen gas sensitive element and detection method thereof |
| CN105758990A (en) * | 2014-12-17 | 2016-07-13 | 国家电网公司 | Calibration system used for SF6 gas micro-water content detector in GIS |
| CN105717011A (en) * | 2016-02-01 | 2016-06-29 | 九阳股份有限公司 | Method for determining utilization rate of purification device of air purifier |
| CN106093135A (en) * | 2016-06-02 | 2016-11-09 | 中国石油大学(华东) | A kind of Power Transformer Faults intelligent diagnostics device based on Graphene gas sensor array |
| CN106765989A (en) * | 2017-01-16 | 2017-05-31 | 广东美的制冷设备有限公司 | The replacing control method of air purifier and its airstrainer |
| CN206626752U (en) * | 2017-01-16 | 2017-11-10 | 广东美的制冷设备有限公司 | The monitoring device of air purifier and its airstrainer service life |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682858A (en) * | 2018-12-19 | 2019-04-26 | 苏州慧闻纳米科技有限公司 | A method of utilizing gas sensor real-time detection gas concentration |
| CN109682858B (en) * | 2018-12-19 | 2021-09-17 | 苏州慧闻纳米科技有限公司 | Method for detecting gas concentration in real time by using gas sensor |
| CN111006918A (en) * | 2019-12-19 | 2020-04-14 | 武汉羽芒智能科技有限公司 | Intelligent monitoring instrument for organic pollutants in atmospheric environment |
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| Publication number | Publication date |
|---|---|
| CN108254417B (en) | 2020-11-27 |
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