CN104502438A - Detection method and device of air quality - Google Patents
Detection method and device of air quality Download PDFInfo
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- CN104502438A CN104502438A CN201410787127.2A CN201410787127A CN104502438A CN 104502438 A CN104502438 A CN 104502438A CN 201410787127 A CN201410787127 A CN 201410787127A CN 104502438 A CN104502438 A CN 104502438A
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- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 238000004140 cleaning Methods 0.000 claims description 59
- 238000013507 mapping Methods 0.000 claims description 10
- 239000003570 air Substances 0.000 abstract description 164
- 239000012080 ambient air Substances 0.000 abstract description 21
- 238000004887 air purification Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000750 progressive effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000012372 quality testing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a detection method of air quality. The detection method comprises the following steps: when air purification equipment is electrified, reading the current output voltage value of a sensor as a first voltage value; obtaining the pre-stored reference voltage value as a second voltage value; obtaining the quality information of the current ambient air according to the first voltage value and the second voltage value. The invention further discloses a detection device of air quality. The detection method and the detection device disclosed by the invention realize the purpose of really detecting the quality of the current ambient air according to the pre-stored reference voltage value when the air purification equipment is electrified, thus improving the quality detection accuracy of the ambient air.
Description
Technical field
The present invention relates to detection technique field, particularly relate to detection method and the device of air quality.
Background technology
Current air cleaning facility, such as clarifier determined due to the characteristic of the VOC sensor that it adopts, when VOC sensor dispatches from the factory, individual difference is larger, testing environment air quality quality time adopt method be sensor work on power time using current air mass as reference value, only have the pollution that just can detect surrounding air when more worsening when air ratio powers on.
Therefore, because the magnitude of voltage will detected when powering on is as reference value, no matter whether present air is deteriorated existing air cleaning facility, powering on, Shi Douhui shows current environment air quality as well, the quality of ambient air quality cannot be detected truly, cause ambient air quality detection accuracy on the low side.
Foregoing, only for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
Fundamental purpose of the present invention is for providing a kind of detection method and device of air quality, no matter whether present air is deteriorated to be intended to solve existing air cleaning facility, powering on, Shi Douhui shows current environment air quality as well, the quality of ambient air quality cannot be detected truly, cause the problem that ambient air quality detection accuracy is on the low side.
For achieving the above object, the invention provides a kind of detection method of air quality, comprise step:
When air cleaning facility powers on, the magnitude of voltage of the current output of read sensor is as the first magnitude of voltage;
The reference voltage value that acquisition prestores is as the second magnitude of voltage;
The quality information of current environment air is obtained according to described first magnitude of voltage and described second magnitude of voltage.
Preferably, the described step obtaining the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage comprises:
Calculate the first voltage difference of described first magnitude of voltage and described second magnitude of voltage;
The quality grade information of current environment air is obtained according to described voltage difference, and the mark that display quality grade is corresponding.
Preferably, after the step of the voltage difference of described first magnitude of voltage of described calculating and described second magnitude of voltage, also comprise:
When described first magnitude of voltage is greater than described second magnitude of voltage, described second magnitude of voltage is updated to the reference voltage value prestored.
Preferably, after the step of the first voltage difference of described first magnitude of voltage of described calculating and described second magnitude of voltage, also comprise:
When described first voltage difference is greater than predeterminated voltage difference, according to the voltage difference preset and the mapping relations of voltage compensation value, determine the first voltage compensation value that described first voltage difference is corresponding;
Upgrade described second magnitude of voltage according to described first voltage compensation value, obtained the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage.
Preferably, described according to described second magnitude of voltage of described voltage compensation value renewal, after obtaining the step of the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage, also comprise:
Calculate the second voltage difference of the second magnitude of voltage after described first magnitude of voltage and described renewal;
When described second voltage difference is greater than predeterminated voltage difference, determine again to upgrade described second magnitude of voltage according to described second voltage compensation value by the second voltage compensation value that described second voltage difference is corresponding, the second magnitude of voltage after again being upgraded;
When described second voltage difference is not more than predeterminated voltage difference, using the magnitude of voltage after described renewal as current base magnitude of voltage.
For achieving the above object, the present invention further provides a kind of pick-up unit of air quality, comprising:
Read module, for when air cleaning facility powers on, the magnitude of voltage of the current output of read sensor is as the first magnitude of voltage;
Acquisition module, for obtaining the reference voltage value that prestores as the second magnitude of voltage;
Processing module, for obtaining the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage.
Preferably, described processing module comprises computing unit, processing unit and display unit,
Described computing unit, for calculating the first voltage difference of described first magnitude of voltage and described second magnitude of voltage;
Described processing unit, for obtaining the quality grade information of current environment air according to described voltage difference;
Described display unit, for the mark that display quality grade is corresponding.
Preferably, described processing unit, also for when described first magnitude of voltage is greater than described second magnitude of voltage, is updated to described second magnitude of voltage the reference voltage value prestored.
Preferably, the pick-up unit of described air quality also comprises determination module, for when described first voltage difference is greater than predeterminated voltage difference, according to the voltage difference preset and the mapping relations of voltage compensation value, determine the first voltage compensation value that described first voltage difference is corresponding;
Described processing unit, for upgrading described second magnitude of voltage according to described first voltage compensation value, obtains the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage.
Preferably, described computing unit, also for calculating the second voltage difference of the second magnitude of voltage after described first magnitude of voltage and described renewal;
Described determination module, also for when described second voltage difference is greater than predeterminated voltage difference, determines the second voltage compensation value that described second voltage difference is corresponding;
Described processing unit, also for again upgrading described second magnitude of voltage according to described second voltage compensation value, the second magnitude of voltage after again being upgraded; Also for when described second voltage difference is not more than predeterminated voltage difference, using the magnitude of voltage after described renewal as current base magnitude of voltage.
Hinge structure, the present invention by prestoring reference voltage value in advance, when air cleaning facility powers on, the magnitude of voltage of the current output of read sensor, and the quality information being obtained current environment space by the magnitude of voltage of the reference voltage value that prestores and reading.No matter whether present air is deteriorated effectively to avoid existing air cleaning facility, and powering on, Shi Douhui shows current environment air quality as well, cannot detect the quality of ambient air quality exactly, cause the problem that ambient air quality detection accuracy is on the low side.When air cleaning facility powers on, the quality of current environment air can be detected really according to the reference voltage value prestored, improve ambient air quality detection accuracy.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of detection method first embodiment of air quality of the present invention;
Fig. 2 is the refinement schematic flow sheet of step S30 mono-embodiment in Fig. 1;
Fig. 3 is the schematic flow sheet of detection method second embodiment of air quality of the present invention;
Fig. 4 is the schematic flow sheet of detection method the 3rd embodiment of air quality of the present invention;
Fig. 5 is the high-level schematic functional block diagram of pick-up unit first embodiment of air quality of the present invention;
Fig. 6 is the refinement high-level schematic functional block diagram of processing module one embodiment in Fig. 5;
The high-level schematic functional block diagram of pick-up unit second embodiment of Fig. 7 air quality of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The primary solutions of the embodiment of the present invention is: when air cleaning facility powers on, and reads the magnitude of voltage of the current output of sensor of air cleaning facility as the first magnitude of voltage; The reference voltage value that acquisition prestores is as the second magnitude of voltage; The quality information of current environment air is obtained according to described first magnitude of voltage and described second magnitude of voltage.By the reference voltage value that prestores in advance, when air cleaning facility powers on, the magnitude of voltage of the current output of read sensor, and the quality information being obtained current environment space by the magnitude of voltage of the reference voltage value that prestores and reading.No matter whether present air is deteriorated effectively to avoid existing air cleaning facility, and powering on, Shi Douhui shows current environment air quality as well, cannot detect the quality of ambient air quality exactly, cause the problem that ambient air quality detection accuracy is on the low side.When air cleaning facility powers on, the quality of current environment air can be detected really according to the reference voltage value prestored, improve ambient air quality detection accuracy.
Due to existing air cleaning facility, no matter whether present air is deteriorated, and powering on, Shi Douhui shows current environment air quality as well, cannot detect the quality of ambient air quality truly, cause ambient air quality detection accuracy on the low side.
Based on the problems referred to above, for the invention provides a kind of detection method of air quality.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are the first embodiment of the detection method of air quality of the present invention.
In one embodiment, the detection method of described air quality comprises:
Step S10, when air cleaning facility powers on, reads the magnitude of voltage of the current output of sensor of air cleaning facility as the first magnitude of voltage;
When needs use air cleaning facility to purify air, namely by the air of air cleaning facility purification current environment, to improve the air quality of current environment.Power on to described air cleaning facility, after air cleaning facility powers on, the magnitude of voltage that the real-time output detections of the sensor in air cleaning facility arrives, reads the magnitude of voltage of the current output of sensor of air cleaning facility as the first magnitude of voltage.Described first magnitude of voltage is the real embodiment of current environment air, or open the initial stage to effectively avoid air cleaning facility, sensor pollutes the inaccurate situation of magnitude of voltage causing detecting, timing is started after air cleaning facility powers on, Preset Time (1 minute, 2 minutes etc., for empirical value) after, read the magnitude of voltage of the current output of sensor of air cleaning facility as the first magnitude of voltage.
Step S20, the reference voltage value that acquisition prestores is as the second magnitude of voltage;
Prestore reference voltage value in advance, and when using first, stablizing according to air cleaning facility the magnitude of voltage that rear sensor detects and prestore as reference voltage value, such as, can be 2.5v or 2.0v etc.In follow-up use procedure, if there is the magnitude of voltage higher than the reference voltage value that prestores, then the magnitude of voltage higher than the reference voltage value that prestores is updated to the reference voltage value prestored.The described reference voltage value prestored is the reasonable magnitude of voltage of current environment air quality, and described reference voltage value is different according to regional varying environment difference, and the reference voltage value namely prestored in every platform air cleaning facility all can be different.
After the magnitude of voltage of the current output of the sensor reading air cleaning facility, the reference voltage value that acquisition prestores is as the second magnitude of voltage.
Step S30, obtains the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage.
After reading the first magnitude of voltage and getting the second magnitude of voltage, obtain the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage.
Concrete, with reference to figure 2, the described process obtaining the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage comprises:
Step S31, calculates the first voltage difference of described first magnitude of voltage and described second magnitude of voltage;
Described second magnitude of voltage is deducted the first voltage difference that described first magnitude of voltage calculates described first magnitude of voltage and described second magnitude of voltage.
Step S32, obtains the quality grade information of current environment air according to described voltage difference, and the mark that display quality grade is corresponding.
Prestore the corresponding relation of the quality grade of voltage difference and surrounding air in advance, described corresponding relation comprises the interval corresponding quality grade of a voltage difference.
Concrete, when described first voltage difference is positive number, namely when described first magnitude of voltage is less than described second magnitude of voltage, judge that current environment air is the first quality grade; When described first voltage difference is negative, namely when described first magnitude of voltage is not less than described second magnitude of voltage, judge that current environment air is the second quality grade, described first quality grade is that current environment is better, and described second quality grade is that current environment is poor.Preferably, after obtaining the quality grade information of current environment air, the mark that display quality grade is corresponding, such as, shows the first mark, shows the second mark when the second quality grade when the first quality grade, described first and second marks are different.Described mark can be color, word or sound etc.Such as, described mark is for color, and first is designated green, and second is designated redness etc.Also can also be a point multiple quality grade in other embodiments of the invention, such as, for three quality grades, comprise the tertiary gradient (good level), the fourth estate (general grade) and the 5th grade (inferior grade), when voltage difference is greater than the first predeterminated voltage difference, for the tertiary gradient, display the 3rd mark; When voltage difference is greater than the second predeterminated voltage difference, be the fourth estate (display the 4th mark); When voltage difference is greater than the 3rd predeterminated voltage difference, be the 5th grade (display the 5th mark), wherein said first predeterminated voltage difference is greater than the second predeterminated voltage difference, described second predeterminated voltage difference is greater than the 3rd predeterminated voltage difference, described 3rd predeterminated voltage difference can be 8v, 10v etc., described second voltage difference can be 5v, 7v etc., and described tertiary voltage difference can be 3v, 4v etc.; Described first mark, the second mark and the 3rd are designated different marks, in order to more intuitively effectively to show the quality information of current environment.
Preferably, when described first magnitude of voltage is greater than described second magnitude of voltage, described second magnitude of voltage is updated to the reference voltage value prestored.Be updated to by the continuous magnitude of voltage that air quality is good the reference voltage value prestored, the accuracy of air detection improved constantly, improves the authenticity of Detection of Air Quality, truly fed back the quality of surrounding air.
The present embodiment, by prestoring reference voltage value in advance, when air cleaning facility powers on, reads the magnitude of voltage of the current output of sensor of air cleaning facility, and obtains the quality information in current environment space by the magnitude of voltage of the reference voltage value that prestores and reading.No matter whether present air is deteriorated effectively to avoid existing air cleaning facility, and powering on, Shi Douhui shows current environment air quality as well, cannot detect the quality of ambient air quality exactly, cause the problem that ambient air quality detection accuracy is on the low side.When air cleaning facility powers on, the quality of current environment air can be detected really according to the reference voltage value prestored, improve ambient air quality detection accuracy.
With reference to the schematic flow sheet that Fig. 3, Fig. 3 are the second embodiment of the detection method of air quality of the present invention.Based on the first embodiment of the detection method of above-mentioned air quality, after described step S31, also comprise:
Step S33, when described first voltage difference is greater than predeterminated voltage difference, according to the voltage difference preset and the mapping relations of voltage compensation value, determines the first voltage compensation value that described first voltage difference is corresponding;
Described predeterminated voltage difference can be 2v, 1v etc., can rule of thumb or need to arrange, be provided with the mapping relations of voltage difference and voltage compensation value in advance, in order to ensure progressive compensation, described offset can not be set to identical with voltage difference, can be less than voltage difference, such as, voltage difference is 4v, then offset can be set to 3v.Described second magnitude of voltage is less than at described first magnitude of voltage, and described first voltage difference is when being greater than predeterminated voltage difference, according to the voltage difference preset and the mapping relations of voltage compensation value, determine namely to obtain the offset of described second magnitude of voltage by the first voltage compensation value that described first voltage difference is corresponding.Preferably, in order to detect the quality information of current environment air more accurately, because the first magnitude of voltage can tend towards stability along with the increase of power-on time, certain hour (after 20s or 30s) can be preset, then calculate the first voltage difference of described first magnitude of voltage and described second magnitude of voltage.
Step S34, is upgraded described second magnitude of voltage according to described first voltage compensation value, is obtained the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage.
After obtaining offset first voltage compensation value of described second magnitude of voltage, described second magnitude of voltage is deducted described first voltage compensation value, upgrade described second magnitude of voltage and obtain the second magnitude of voltage after upgrading, obtained the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage.
Further, with reference to figure 4, after described step S34, can also comprise:
Step S35, when described second voltage difference is greater than predeterminated voltage difference, determines again to upgrade described second magnitude of voltage according to described second voltage compensation value by the second voltage compensation value that described second voltage difference is corresponding, the second magnitude of voltage after again being upgraded;
Step S36, when described second voltage difference is not more than predeterminated voltage difference, using the magnitude of voltage after described renewal as current base magnitude of voltage.
After compensating the second magnitude of voltage according to the first voltage compensation value, if there is difference in the second magnitude of voltage after the first magnitude of voltage of the current output of the sensor of air cleaning facility and described renewal, and existing difference is when being greater than preset voltage value, continue the offset determining difference, and continue renewal second magnitude of voltage according to offset, until after magnitude of voltage after upgrading and the difference of the first magnitude of voltage be not more than predeterminated voltage difference, using the second magnitude of voltage after renewal as current reference voltage value, the magnitude of voltage detected according to current reference voltage value and sensor obtains the quality information of current environment air.
In other embodiments of the present invention, the detection method of air quality can also be, after air cleaning facility powers on, the magnitude of voltage of the current output of read sensor is as the first magnitude of voltage, the reference voltage value that acquisition prestores is as the second magnitude of voltage, when the voltage difference of the first magnitude of voltage and the second magnitude of voltage is greater than predeterminated voltage difference, determine that offset compensates the second magnitude of voltage as upgrading to described second magnitude of voltage, the quality information of current environment air is obtained according to the magnitude of voltage upgraded and described first magnitude of voltage, make to effectively prevent the problem that the sensor initial stage of powering on detects magnitude of voltage instability, further increase accuracy and the authenticity of Detection of Air Quality.
The embodiment of the present invention, by constantly compensating the reference voltage value prestored, makes the quality testing of surrounding air more true, accurate, effectively detects the quality of current environment quality.
The checkout equipment that the executive agent of the detection method of the air quality of above-mentioned the first to the second embodiment all can be air cleaning facility or be connected with air cleaning facility signal.Further, the detection method of this air quality can by the client trace routine be arranged on air cleaning facility or checkout equipment (such as, the inspection software etc. of air quality) realize, wherein, this air cleaning facility can include but not limited to the electronic equipments such as clarifier.Described checkout equipment includes but not limited to mobile phone, pad, notebook computer etc.
Corresponding, the present invention also proposes a kind of pick-up unit of air quality further.
With reference to figure 5, it is the high-level schematic functional block diagram of the first embodiment of the pick-up unit of air quality of the present invention.The pick-up unit of described air quality comprises: read module 10, acquisition module 20 and processing module 30.
Described read module 10, for when air cleaning facility powers on, the magnitude of voltage of the current output of read sensor is as the first magnitude of voltage;
When needs use air cleaning facility to purify air, namely by the air of air cleaning facility purification current environment, to improve the air quality of current environment.Power on to described air cleaning facility, after air cleaning facility powers on, the magnitude of voltage that the real-time output detections of the sensor in air cleaning facility arrives, reads the magnitude of voltage of the current output of sensor of air cleaning facility as the first magnitude of voltage.Described first magnitude of voltage is the real embodiment of current environment air, or open the initial stage to effectively avoid air cleaning facility, sensor pollutes the inaccurate situation of magnitude of voltage causing detecting, timing is started after air cleaning facility powers on, Preset Time (1 minute, 2 minutes etc., for empirical value) after, read the magnitude of voltage of the current output of sensor of air cleaning facility as the first magnitude of voltage.
Described acquisition module 20, for obtaining the reference voltage value that prestores as the second magnitude of voltage;
Prestore reference voltage value in advance, and when using first, stablizing according to air cleaning facility the magnitude of voltage that rear sensor detects and prestore as reference voltage value, such as, can be 2.5v or 2.0v etc.In follow-up use procedure, if there is the magnitude of voltage higher than the reference voltage value that prestores, then the magnitude of voltage higher than the reference voltage value that prestores is updated to the reference voltage value prestored.The described reference voltage value prestored is the reasonable magnitude of voltage of current environment air quality, and described reference voltage value is different according to regional varying environment difference, and the reference voltage value namely prestored in every platform air cleaning facility all can be different.
After the magnitude of voltage of the current output of the sensor reading air cleaning facility, the reference voltage value that acquisition prestores is as the second magnitude of voltage.
Described processing module 30, for obtaining the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage.
After reading the first magnitude of voltage and getting the second magnitude of voltage, obtain the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage.
Concrete, with reference to figure 6, described processing module 30 comprises computing unit 31, processing unit 32 and display unit 33,
Described computing unit 31, for calculating the first voltage difference of described first magnitude of voltage and described second magnitude of voltage;
Described second magnitude of voltage is deducted the first voltage difference that described first magnitude of voltage calculates described first magnitude of voltage and described second magnitude of voltage.
Described processing unit 32, for obtaining the quality grade information of current environment air according to described voltage difference;
Described display unit 33, for the mark that display quality grade is corresponding.
Prestore the corresponding relation of the quality grade of voltage difference and surrounding air in advance, described corresponding relation comprises the interval corresponding quality grade of a voltage difference.
Concrete, when described first voltage difference is positive number, namely when described first magnitude of voltage is less than described second magnitude of voltage, judge that current environment air is the first quality grade; When described first voltage difference is negative, namely when described first magnitude of voltage is not less than described second magnitude of voltage, judge that current environment air is the second quality grade, described first quality grade is that current environment is better, and described second quality grade is that current environment is poor.Preferably, after obtaining the quality grade information of current environment air, the mark that display quality grade is corresponding, such as, shows the first mark, shows the second mark when the second quality grade when the first quality grade, described first and second marks are different.Described mark can be color, word or sound etc.Such as, described mark is for color, and first is designated green, and second is designated redness etc.Also can also be a point multiple quality grade in other embodiments of the invention, such as, for three quality grades, comprise the tertiary gradient (good level), the fourth estate (general grade) and the 5th grade (inferior grade), when voltage difference is greater than the first predeterminated voltage difference, for the tertiary gradient, display the 3rd mark; When voltage difference is greater than the second predeterminated voltage difference, be the fourth estate (display the 4th mark); When voltage difference is greater than the 3rd predeterminated voltage difference, be the 5th grade (display the 5th mark), wherein said first predeterminated voltage difference is greater than the second predeterminated voltage difference, described second predeterminated voltage difference is greater than the 3rd predeterminated voltage difference, described 3rd predeterminated voltage difference can be 8v, 10v etc., described second voltage difference can be 5v, 7v etc., and described tertiary voltage difference can be 3v, 4v etc.; Described first mark, the second mark and the 3rd are designated different marks, in order to more intuitively effectively to show the quality information of current environment.
Preferably, when described first magnitude of voltage is greater than described second magnitude of voltage, described processing unit 32, also for described second magnitude of voltage is updated to the reference voltage value prestored.Be updated to by the continuous magnitude of voltage that air quality is good the reference voltage value prestored, the accuracy of air detection improved constantly, improves the authenticity of Detection of Air Quality, truly fed back the quality of surrounding air.
The present embodiment, by prestoring reference voltage value in advance, when air cleaning facility powers on, reads the magnitude of voltage of the current output of sensor of air cleaning facility, and obtains the quality information in current environment space by the magnitude of voltage of the reference voltage value that prestores and reading.No matter whether present air is deteriorated effectively to avoid existing air cleaning facility, and powering on, Shi Douhui shows current environment air quality as well, cannot detect the quality of ambient air quality exactly, cause the problem that ambient air quality detection accuracy is on the low side.When air cleaning facility powers on, the quality of current environment air can be detected really according to the reference voltage value prestored, improve ambient air quality detection accuracy.
With reference to the high-level schematic functional block diagram that Fig. 7, Fig. 7 are the second embodiment of the pick-up unit of air quality of the present invention.Based on the first embodiment of the pick-up unit of above-mentioned air quality, the pick-up unit of described air quality also comprises determination module 40,
Described determination module 40, for when described first voltage difference is greater than predeterminated voltage difference, according to the voltage difference preset and the mapping relations of voltage compensation value, determines the first voltage compensation value that described first voltage difference is corresponding;
Described predeterminated voltage difference can be 2v, 1v etc., can rule of thumb or need to arrange, be provided with the mapping relations of voltage difference and voltage compensation value in advance, in order to ensure progressive compensation, described offset can not be set to identical with voltage difference, can be less than voltage difference, such as, voltage difference is 4v, then offset can be set to 3v.Described second magnitude of voltage is less than at described first magnitude of voltage, and described first voltage difference is when being greater than predeterminated voltage difference, according to the voltage difference preset and the mapping relations of voltage compensation value, determine namely to obtain the offset of described second magnitude of voltage by the first voltage compensation value that described first voltage difference is corresponding.Preferably, in order to detect the quality information of current environment air more accurately, because the first magnitude of voltage can tend towards stability along with the increase of power-on time, certain hour (after 20s or 30s) can be preset, then calculate the first voltage difference of described first magnitude of voltage and described second magnitude of voltage.
Described processing unit 32, for upgrading described second magnitude of voltage according to described first voltage compensation value, obtains the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage.
After obtaining offset first voltage compensation value of described second magnitude of voltage, described second magnitude of voltage is deducted described first voltage compensation value, upgrade described second magnitude of voltage and obtain the second magnitude of voltage after upgrading, obtained the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage.
Further, described determination module 40, also for when described second voltage difference is greater than predeterminated voltage difference, determines the second voltage compensation value that described second voltage difference is corresponding;
Described processing unit 32, also for again upgrading described second magnitude of voltage according to described second voltage compensation value, the second magnitude of voltage after again being upgraded; Also for when described second voltage difference is not more than predeterminated voltage difference, using the magnitude of voltage after described renewal as current base magnitude of voltage.
After compensating the second magnitude of voltage according to the first voltage compensation value, if there is difference in the second magnitude of voltage after the first magnitude of voltage of the current output of the sensor of air cleaning facility and described renewal, and existing difference is when being greater than preset voltage value, continue the offset determining difference, and continue renewal second magnitude of voltage according to offset, until after magnitude of voltage after upgrading and the difference of the first magnitude of voltage be not more than predeterminated voltage difference, using the second magnitude of voltage after renewal as current reference voltage value, the magnitude of voltage detected according to current reference voltage value and sensor obtains the quality information of current environment air.
In other embodiments of the present invention, the detection method of air quality can also be, after air cleaning facility powers on, the magnitude of voltage of the current output of read sensor is as the first magnitude of voltage, the reference voltage value that acquisition prestores is as the second magnitude of voltage, when the voltage difference of the first magnitude of voltage and the second magnitude of voltage is greater than predeterminated voltage difference, determine that offset compensates the second magnitude of voltage as upgrading to described second magnitude of voltage, the quality information of current environment air is obtained according to the magnitude of voltage upgraded and described first magnitude of voltage, make to effectively prevent the problem that the sensor initial stage of powering on detects magnitude of voltage instability, further increase accuracy and the authenticity of Detection of Air Quality.
The embodiment of the present invention, by constantly compensating the reference voltage value prestored, makes the quality testing of surrounding air more true, accurate, effectively detects the quality of current environment quality.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.Through the above description of the embodiments, those skilled in the art can be well understood to the mode that above-described embodiment method can add required general hardware platform by software and realize, hardware can certainly be passed through, but in a lot of situation, the former is better embodiment.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computing machine, server, or the network equipment etc.) perform method described in each embodiment of the present invention.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a detection method for air quality, is characterized in that, comprises step:
When air cleaning facility powers on, the magnitude of voltage of the current output of read sensor is as the first magnitude of voltage;
The reference voltage value that acquisition prestores is as the second magnitude of voltage;
The quality information of current environment air is obtained according to described first magnitude of voltage and described second magnitude of voltage.
2. the detection method of air quality as claimed in claim 1, it is characterized in that, the described step obtaining the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage comprises:
Calculate the first voltage difference of described first magnitude of voltage and described second magnitude of voltage;
The quality grade information of current environment air is obtained according to described voltage difference, and the mark that display quality grade is corresponding.
3. the detection method of air quality as claimed in claim 2, is characterized in that, after the step of the voltage difference of described first magnitude of voltage of described calculating and described second magnitude of voltage, also comprise:
When described first magnitude of voltage is greater than described second magnitude of voltage, described second magnitude of voltage is updated to the reference voltage value prestored.
4. the detection method of air quality as claimed in claim 2, is characterized in that, after the step of the first voltage difference of described first magnitude of voltage of described calculating and described second magnitude of voltage, also comprise:
When described first voltage difference is greater than predeterminated voltage difference, according to the voltage difference preset and the mapping relations of voltage compensation value, determine the first voltage compensation value that described first voltage difference is corresponding;
Upgrade described second magnitude of voltage according to described first voltage compensation value, obtained the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage.
5. the detection method of air quality as claimed in claim 4, it is characterized in that, described according to described second magnitude of voltage of described voltage compensation value renewal, after obtaining the step of the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage, also comprise:
Calculate the second voltage difference of the second magnitude of voltage after described first magnitude of voltage and described renewal;
When described second voltage difference is greater than predeterminated voltage difference, determine again to upgrade described second magnitude of voltage according to described second voltage compensation value by the second voltage compensation value that described second voltage difference is corresponding, the second magnitude of voltage after again being upgraded;
When described second voltage difference is not more than predeterminated voltage difference, using the magnitude of voltage after described renewal as current base magnitude of voltage.
6. a pick-up unit for air quality, is characterized in that, comprising:
Read module, for when air cleaning facility powers on, the magnitude of voltage of the current output of read sensor is as the first magnitude of voltage;
Acquisition module, for obtaining the reference voltage value that prestores as the second magnitude of voltage;
Processing module, for obtaining the quality information of current environment air according to described first magnitude of voltage and described second magnitude of voltage.
7. the pick-up unit of air quality as claimed in claim 6, it is characterized in that, described processing module comprises computing unit, processing unit and display unit,
Described computing unit, for calculating the first voltage difference of described first magnitude of voltage and described second magnitude of voltage;
Described processing unit, for obtaining the quality grade information of current environment air according to described voltage difference;
Described display unit, for the mark that display quality grade is corresponding.
8. the pick-up unit of air quality as claimed in claim 7, is characterized in that, described processing unit, also for when described first magnitude of voltage is greater than described second magnitude of voltage, described second magnitude of voltage is updated to the reference voltage value prestored.
9. the pick-up unit of air quality as claimed in claim 7 or 8, it is characterized in that, the pick-up unit of described air quality also comprises determination module, for when described first voltage difference is greater than predeterminated voltage difference, according to the voltage difference preset and the mapping relations of voltage compensation value, determine the first voltage compensation value that described first voltage difference is corresponding;
Described processing unit, for upgrading described second magnitude of voltage according to described first voltage compensation value, obtains the quality information of current environment air by the second magnitude of voltage after renewal and described first magnitude of voltage.
10. the pick-up unit of air quality as claimed in claim 9, is characterized in that, described computing unit, also for calculating the second voltage difference of the second magnitude of voltage after described first magnitude of voltage and described renewal;
Described determination module, also for when described second voltage difference is greater than predeterminated voltage difference, determines the second voltage compensation value that described second voltage difference is corresponding;
Described processing unit, also for again upgrading described second magnitude of voltage according to described second voltage compensation value, the second magnitude of voltage after again being upgraded; Also for when described second voltage difference is not more than predeterminated voltage difference, using the magnitude of voltage after described renewal as current base magnitude of voltage.
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