CN105890113B - Dust concentration detecting method based on air conditioner - Google Patents
Dust concentration detecting method based on air conditioner Download PDFInfo
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- CN105890113B CN105890113B CN201610219761.5A CN201610219761A CN105890113B CN 105890113 B CN105890113 B CN 105890113B CN 201610219761 A CN201610219761 A CN 201610219761A CN 105890113 B CN105890113 B CN 105890113B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Quality & Reliability (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of dust concentration detecting methods based on air conditioner, comprising: dust sensor obtains present air flow velocity according to setting sample frequency；Judge whether present air flow velocity changes relative to previous stable air flow velocity；If not changing, using the corresponding previous sampling time section of previous stable air flow velocity as the present sample period；If changing, the size of present air flow velocity Yu setting air flow velocity is judged；If present air flow velocity is greater than setting air flow velocity, sampling time section corresponding with present air flow velocity is determined according to known air velocity and the corresponding relationship of sampling time section and as the present sample period；If present air flow velocity is not more than setting air flow velocity, using known setting sampling time section as the present sample period；Dust sensor is obtained dust detected value and is exported using the present sample period as running parameter.With the application of the invention, can solve the problem of prior art dust concentration detection inaccuracy.
Description
Technical field
The invention belongs to air-conditioning technique fields, are to be related to base more specifically specifically, being to be related to air conditioner
In the dust concentration detecting method of air conditioner.
Background technique
Currently, intelligent air condition is more and more, application of the various sensors on intelligent air condition be also it is more and more, especially
About Detection of Air Quality using more and more.Dust sensor can pass through as a kind of Detection of Air Quality sensor
Emit the particulate matter in infrared ray or laser irradiation air, air is obtained according to the light intensity signal after being scattered or reflected by particulate matter
In dust concentration, realize detection to dust concentration.
When detecting dust concentration, sampling following methods obtain detected value and export dust sensor: in the sampling of setting
Continuous acquisition flows through the light intensity signal data that the air particle in dust sensor range of exposures is fed back in period, then
Average or integral calculation is carried out to all data in the sampling time section, obtains a dust concentration in the sampling time section
Value is as detected value and exports.That is, the detected value of dust sensor output is and flows through in dust sensor detection range
Air particle and period relevant data are to obtained from the data accumulation processing in a sampling time section.
Dust sensor used in existing air-conditioning, sampling time section are fixed and invariable, and have been set when leaving the factory
Fixed value no longer changes alternatively, selecting a fixed setting value by user when in use in the detection process.And due to
The detected value of dust sensor is related to the air particle and sampling time section that flow through in dust sensor detection range, that
, if not identical, the powder that flows through the air particle quantity in dust sensor detection range in same sampling time section
The detected value of dust sensor output is different.And the air in dust sensor detection range is flowed through in the same period
The difference of particulate matter quantity is not fully caused by particulate in air concentration difference, it is also possible to because flowing through
Air capacity it is different caused by.Thus, it may appear that different dust concentrations is exported to the air of same particle concentration and is detected
The problem of value, causes dust concentration detection inaccuracy.Since in the prior art, the host of air conditioner entirely passively receives dust
The data of sensor transmissions carry out upload of the sending after data of the displays of data, main machine control signal, thus dust concentration
Detection inaccuracy will affect understanding of the user to air quality and the reasonable selection to dust suppression again.
Summary of the invention
The object of the present invention is to provide a kind of dust concentration detecting methods based on air conditioner, and it is dense to solve prior art dust
The problem of degree detection inaccuracy.
For achieving the above object, the present invention, which adopts the following technical solutions, is achieved:
A kind of dust concentration detecting method based on air conditioner, which comprises
The dust sensor being arranged on air conditioner obtains the dust sensor detection range according to setting sample frequency
Interior present air flow velocity；
The present air flow velocity is made comparisons with adjacent previous stable air flow velocity, judges the present air flow velocity
Whether change relative to the previous stable air flow velocity；
If the present air flow velocity does not change relative to the previous stable air flow velocity, by the previous stabilization
The corresponding previous sampling time section of air velocity is as the present sample period；
If the present air flow velocity changes relative to the previous stable air flow velocity, by the current air flow
It is fast to make comparisons with known setting air flow velocity, judge the size of the present air flow velocity Yu the setting air flow velocity；
If the present air flow velocity is greater than the setting air flow velocity, according to known air velocity and sampling time section
Corresponding relationship determine corresponding with present air flow velocity sampling time section and as the present sample period；If institute
Present air flow velocity is stated no more than the setting air flow velocity, using known setting sampling time section as when the present sample
Between section；The known air velocity and the corresponding relationship of sampling time section are negative correlativing relation；
The dust sensor is obtained dust detected value and is exported using the present sample period as running parameter.
Method as described above, if the present air flow velocity is that air conditioner powers on first air velocity after booting,
Then the previous stable air flow velocity is known baseline air flow velocity；If the present air flow velocity non-empty tune device powers on booting
First air velocity afterwards, the corresponding previous sampling time section of the previous stable air flow velocity is according to the known sky
The sampling time section or the known setting sampling time section that gas velocity and the corresponding relationship of sampling time section determine.
Preferably, it is the linear of negative that the known air velocity and the corresponding relationship of sampling time section, which are proportionality coefficient,
Relationship.
Method as described above, if continuously the present air flow velocity of setting number is relative to the previous stable air
Flow velocity is changed, if setting the duration in all present air flow velocitys relative to the previous stabilization
Air velocity is changed, then execute it is described the present air flow velocity is made comparisons with known setting air flow velocity,
Judge the process of the size of the present air flow velocity and the setting air flow velocity；It otherwise, will the previous stable air
The corresponding previous sampling time section of flow velocity is as the present sample period.
Method as described above, the dust sensor being arranged on air conditioner is according to described in setting sample frequency acquisition
Present air flow velocity in dust sensor detection range, specifically:
The host of air conditioner reads the current rotating speed of air conditioner chamber's inner blower according to the setting sample frequency, according to known
Rotation speed of fan and the corresponding relationship of air velocity obtain corresponding with current rotating speed air velocity, as the current sky
Gas velocity, and the present air flow velocity is transmitted to the dust sensor.
Method as described above, the dust sensor being arranged on air conditioner is according to described in setting sample frequency acquisition
Present air flow velocity in dust sensor detection range, specifically can be with are as follows:
The host of air conditioner reads the air velocity transducer output being arranged on air conditioner according to the setting sample frequency
Air speed value is transmitted to the dust sensor as the present air flow velocity, and by the present air flow velocity；The wind speed
Sensor is used to detect the flow velocity of the air in the dust sensor detection range.
Preferably, the dust sensor and the air velocity transducer are arranged at the air inlet of air conditioner.
The present air flow velocity is being transmitted to the same of the dust sensor by method as described above, the host
When, the instruction for obtaining dust detected value is also transmitted to the dust sensor.
Preferably, the dust sensor is PM2.5 sensor.
Compared with prior art, the advantages and positive effects of the present invention are: in dust concentration detection side provided by the invention
In method, according to the real-time air velocity in dust sensor detection range to the sampling time as dust sensor running parameter
It is corrected when Duan Zuoshi, air velocity is bigger, and sampling time section is smaller, and air velocity is smaller, then sampling time section is bigger, as a result,
So that the air capacity in unit interval Jing Guo dust sensor detection range is essentially identical, thus, in conjunction with dust sensor
Testing principle eliminates the shadow for causing inaccuracy to dust concentration detection data due to wind speed difference, flowing through different air capacities
It rings, improves the accuracy of dust concentration detection, avoid because wind speed difference leads to the air output to same particle concentration
The generation of the problem of different dust concentration detected value.Moreover, being facilitated by the accuracy for improving dust concentration detection data
User accurately understands current indoor air quality, it helps user is actively or air-conditioning takes reasonable dust suppression automatically.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the flow chart of dust concentration detecting method one embodiment the present invention is based on air conditioner.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to drawings and examples,
Invention is further described in detail.
Referring to Figure 1, which show the flow chart of one embodiment of the invention, specifically based on the powder of air conditioner
The flow chart of dust concentration detection method one embodiment.
As shown in Figure 1, method of the embodiment based on air conditioner process dust concentration includes following process steps:
Step 101: the dust sensor being arranged on air conditioner obtains dust sensor detection according to setting sample frequency
Present air flow velocity in range.
Wherein, setting sample frequency is a known, pre-stored frequency, obtains present air flow velocity as real-time
Sample frequency.Present air flow velocity described in the embodiment, refers to the air stream got in real time in each sampling period
Speed.It is understood that present air flow velocity is real-time update as time goes by, reflection is dust sensor detection model
Enclose interior real-time speed air flow.
Moreover, dust sensor can be selected as the PM2.5 sensor of technology maturation in conjunction with the hot spot of existing dust control.
Step 102: present air flow velocity being made comparisons with adjacent previous stable air flow velocity, judges present air flow velocity
Whether change relative to previous stable air flow velocity.
Dust sensor at least records stable air flow velocity that is newest, not being updated also.In general, obtaining new work as
Dust sensor determines that air velocity based on running parameter is adjacent previous steady of present air flow velocity when preceding air velocity
Determine air velocity.So-called stable air flow velocity refers to the air velocity for keeping stable whithin a period of time, rather than frequently variation
Air velocity.
Step 103: judging whether to be changed.If changing, the treatment process of step 105 and step 106 is executed；
If executing the treatment process of step 104 there is no variation.
Step 104:, will be previous stable empty if present air flow velocity does not change relative to previous stable air flow velocity
The corresponding previous sampling time section of gas velocity is as the present sample period.Then, step 107 is gone to.
That is, keeping the sampling time section of dust sensor constant if present air flow velocity does not change.
Step 105: if present air flow velocity changes relative to previous stable air flow velocity, by present air flow velocity
It makes comparisons with known setting air flow velocity, judges the size of present air flow velocity Yu setting air flow velocity, and tie according to judgement
Fruit executes different treatment processes, referring specifically to described by step 106.
That is, need to correct the sampling time section of dust sensor if present air flow velocity is changed, into
Row is adaptively adjusted, so that sampling time section matches with air velocity.
Specifically, first determining whether the present air flow velocity to have changed and setting when amendment is adaptively adjusted
The size of air velocity.Wherein, setting air flow velocity is a known, pre-stored flow velocity, is that characterization air velocity-is adopted
The turning point of sample period difference correcting mode.
Step 106: if present air flow velocity is greater than setting air flow velocity, according to known air velocity and sampling time section
Corresponding relationship determine corresponding with present air flow velocity sampling time section and as the present sample period；If current air flow
Speed is not more than setting air flow velocity, using known setting sampling time section as the present sample period.Then, step is executed
107。
If by comparing present air flow velocity is determined greater than setting air flow velocity, according to known, pre-stored
Air velocity and the corresponding relationship of sampling time section determine sampling time section corresponding with present air flow velocity, and determining is adopted
The sample period is as the present sample period.It is known that air velocity and sampling time section corresponding relationship be negative correlation
Relationship.That is, air velocity is bigger, sampling time section is smaller；Vice versa.
And if present air flow velocity be not more than setting air flow velocity, using known setting sampling time section as present sample
Period.That is, sampling time section is a fixed value if present air flow velocity is not more than setting air flow velocity.Wherein,
Known setting sampling time section is also pre-stored.
By the processing of the step, reasonable selection setting air flow velocity, present air flow velocity if there is a change is not
Greater than setting air flow velocity, so that air velocity influences dust sensor testing result less, then to keep dust sensor
Sampling time section does not change；When the present air flow velocity to have changed is greater than setting air flow velocity, according to negative correlativing relation
Present air flow velocity is based on to sampling time section to correct in real time.
Step 107: after step 104 or step 106 have determined the present sample period, dust sensor is currently to adopt
The sample period as running parameter, obtains dust detected value and exports.
The process of dust sensor using sampling time section as running parameter, acquisition dust detected value can refer to existing skill
Art is not elaborated herein.
In the dust concentration detecting method that the embodiment provides, according to the real-time air in dust sensor detection range
Amendment when flow velocity puts into effect to the sampling time section as dust sensor running parameter, air velocity is bigger, and sampling time section is got over
Small, air velocity is smaller, then sampling time section is bigger, as a result, passing through dust sensor detection range in unit interval
Air capacity it is essentially identical, thus, in conjunction with the testing principle of dust sensor, eliminate because wind speed is different, flows through different skies
Tolerance and to dust concentration detection data cause inaccuracy influence, improve dust concentration detection accuracy, avoid because
The generation for the problem of wind speed difference causes the air to same particle concentration to export different dust concentration detected values.Moreover,
By improving the accuracy of dust concentration detection data, facilitates user and accurately understands current indoor air quality, it helps
User is actively or air-conditioning takes reasonable dust suppression automatically.Moreover, the makeover process of sampling time section is at dust sensor end
Implement, strong real-time, the output of detected value is more accurate, reliable.
In a step 101, the dust sensor being arranged on air conditioner obtains dust sensor according to setting sample frequency
Present air flow velocity in detection range can be realized using various ways.
For example, in conjunction with the characteristics of air conditioner itself, can be realized by following manner: the host of air conditioner is according to setting
Sample frequency reads the current rotating speed of air conditioner chamber's inner blower, is obtained according to the corresponding relationship of known rotation speed of fan and air velocity
Air velocity corresponding with current rotating speed is taken, present air flow velocity is transmitted to dust as present air flow velocity, and by host
Sensor.To enable dust sensor to obtain present air flow velocity according to setting sample frequency.In this mode, dust
Sensor can be set in air conditioner indoor machine air duct, be preferably provided at the air inlet of air conditioner room unit.
Again for example, can also be realized by the way that air velocity transducer is arranged on air conditioner: the host of air conditioner is according to setting
Sample frequency reads the air speed value for the air velocity transducer output being arranged on air conditioner as the present air flow velocity, and by institute
It states present air flow velocity and is transmitted to the dust sensor；The air velocity transducer is used to detect the dust sensor detection model
The flow velocity of air in enclosing.In this mode, dust sensor and air velocity transducer are arranged in air conditioner indoor machine air duct, excellent
Choosing, dust sensor and air velocity transducer are arranged at the air inlet of air conditioner room unit.
Also, from host into the embodiment of dust sensor transmission air velocity, it is furthermore preferred that host is will be current
While air velocity is transmitted to the dust sensor, the instruction for obtaining dust detected value is also transmitted to dust sensor.By
This, allows host that dust sensor is actively asked to transmit data as needed, rather than such as host passively receives powder in the prior art
Dust sensor transmits the defect of data, improves interacting between host and dust sensor.
Determination for the previous stable air flow velocity in step 102, if present air flow velocity is to establish by cable on air conditioner
First air velocity after machine, then, previous stable air flow velocity is known, pre-stored baseline air flow velocity.One
As, baseline air flow velocity is greater than setting air flow velocity above-mentioned.And after if present air flow velocity non-empty tune device powers on booting
First air velocity, then the corresponding previous sampling time section of previous stable air flow velocity be according to known air velocity with adopt
The sampling time section that the corresponding relationship of sample period determines, alternatively, being known setting sampling time section.
Moreover, as preferred embodiment, if continuously the present air flow velocity of setting number is relative to previous stable empty
Gas velocity is changed, if all present air flow velocitys in the setting duration relative to described previous stable empty
Gas velocity is changed, then executes and present air flow velocity is made comparisons with known setting air flow velocity, is judged current empty
The process of the size of gas velocity and the setting air flow velocity；It otherwise, will the corresponding previous sampling of previous stable air flow velocity
Period is as the present sample period.By this way, delay confirmation is made to the variation of air velocity, avoids because of unexpected interference
It causes air velocity temporarily to change and takes unnecessary processing.
In step 106, it is known that air velocity and the corresponding relationship of sampling time section be preferably proportionality coefficient be negative
Linear relationship.That is, air velocity is not only negatively correlated with sampling time section, and linear relationship is presented.By largely researching and developing and in fact
It tests, sampling time section is determined using the relationship, can relatively accurately reflect that air velocity is corresponding with sampling time section and close
System, and conveniently applied in this tiny device of dust sensor.
Description based on the various embodiments described above and preferred embodiment is it is found that according to air velocity with reasonable correcting mode
This running parameter of the sampling time section of amendment dust sensor in real time, efficiently solves asking for dust concentration detection inaccuracy
Topic is suitble to change in the air conditioner of possibility greatly, with air velocity testing conditions in air velocity and apply.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of dust concentration detecting method based on air conditioner, which is characterized in that the described method includes:
The dust sensor being arranged on air conditioner obtains in the dust sensor detection range according to setting sample frequency
Present air flow velocity；
The present air flow velocity is made comparisons with adjacent previous stable air flow velocity, judges that the present air flow velocity is opposite
Whether change in the previous stable air flow velocity；
If the present air flow velocity does not change relative to the previous stable air flow velocity, by the previous stable air
The corresponding previous sampling time section of flow velocity is as the present sample period；
If the present air flow velocity changes relative to the previous stable air flow velocity, by the present air flow velocity with
Known setting air flow velocity is made comparisons, and judges the size of the present air flow velocity Yu the setting air flow velocity；
If the present air flow velocity is greater than the setting air flow velocity, according to pair of known air velocity and sampling time section
It should be related to and determine sampling time section corresponding with the present air flow velocity and as the present sample period；If described work as
Preceding air velocity is not more than the setting air flow velocity, using known setting sampling time section as the present sample time
Section；The known air velocity and the corresponding relationship of sampling time section are negative correlativing relation；
The dust sensor is obtained dust concentration detected value and is exported using the present sample period as running parameter.
2. the method according to claim 1, wherein if the present air flow velocity is after air conditioner powers on booting
First air velocity, then the previous stable air flow velocity be known baseline air flow velocity；If the current air flow
The non-air conditioner of speed powers on first air velocity after booting, the corresponding previous sampling time section of the previous stable air flow velocity
For the sampling time section that is determined according to the corresponding relationship of the known air velocity and sampling time section or described known set
Determine sampling time section.
3. the method according to claim 1, wherein the known air velocity is corresponding with sampling time section
Relationship is the linear relationship that proportionality coefficient is negative.
4. according to the method in any one of claims 1 to 3, which is characterized in that if continuously setting the described current of number
Air velocity is changed relative to the previous stable air flow velocity, if all described in the setting duration
Present air flow velocity is changed relative to the previous stable air flow velocity, then is executed described by the current air flow
It is fast to make comparisons with known setting air flow velocity, judge the mistake of the size of the present air flow velocity and the setting air flow velocity
Journey；Otherwise, will the corresponding previous sampling time section of the previous stable air flow velocity as the present sample period.
5. the method according to claim 1, wherein the dust sensor being arranged on air conditioner is according to setting
Determine sample frequency and obtain present air flow velocity in the dust sensor detection range, specifically:
The host of air conditioner reads the current rotating speed of air conditioner chamber's inner blower according to the setting sample frequency, according to known wind
The corresponding relationship of machine revolving speed and air velocity obtains air velocity corresponding with the current rotating speed, as the current air flow
Speed, and the present air flow velocity is transmitted to the dust sensor.
6. the method according to claim 1, wherein the dust sensor being arranged on air conditioner is according to setting
Determine sample frequency and obtain present air flow velocity in the dust sensor detection range, specifically:
The host of air conditioner reads the wind speed for the air velocity transducer output being arranged on air conditioner according to the setting sample frequency
Value is used as the present air flow velocity, and the present air flow velocity is transmitted to the dust sensor；The wind speed sensing
Device is used to detect the flow velocity of the air in the dust sensor detection range.
7. according to the method described in claim 6, it is characterized in that, the dust sensor and the air velocity transducer are respectively provided with
In the air inlet of air conditioner.
8. method according to claim 5 or 6, which is characterized in that the host is transmitted by the present air flow velocity
While to the dust sensor, the instruction for obtaining dust concentration detected value is also transmitted to the dust sensor.
9. the method according to claim 1, wherein the dust sensor is PM2.5 sensor.
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| CN110486902B (en) * | 2019-08-09 | 2021-03-02 | 海信（山东）空调有限公司 | Method and device for measuring and calculating carbon dioxide concentration of fresh air fan and fresh air fan |
| CN111023411A (en) * | 2019-11-26 | 2020-04-17 | 安徽军创佳美环保科技有限公司 | Indoor air purification control system |
| CN111006980A (en) * | 2019-11-26 | 2020-04-14 | 安徽军创佳美环保科技有限公司 | Air pollution detection terminal |
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