CN103344014A - In-vehicle air monitoring and purification device and control method of in-vehicle air monitoring and purification device - Google Patents

Abstract

The invention provides an in-vehicle air monitoring and purification device and a control method of the in-vehicle air monitoring and purification device. The in-vehicle air monitoring and purification device comprises a shell and a base, wherein a display screen is arranged at the top end of the shell, the bottom of the shell is connected with the base, an air outlet grid is arranged on the upper portion of the shell, and an air inlet grid is arranged on the lower portion of the shell. The interior of the shell is divided by an air purification assembly into an upper cavity and a lower cavity, a sensor set for detecting harmful gas in air, a turbine and a turbine motor are arranged in the lower cavity, and a negative-ion generator and an air blower are sequentially arranged in the upper cavity in the air delivery direction. A power source is fixed in the base. The in-vehicle air monitoring and purification device further comprises a control circuit, and the control circuit comprises an analog-digital conversion circuit, a single-chip microcomputer, a charging circuit and an executing mechanism. By means of the in-vehicle air monitoring and purification device and the control method of the in-vehicle air monitoring and purification device, the in-vehicle air quality can be monitored in real time, the purification function can be automatically started when the in-vehicle air quality exceeds the safety index value, and the purification function can be automatically stopped after the in-vehicle air quality reaches the standard.

Description

Air monitering and purifier and control method thereof in the car

Technical field

The invention belongs to a kind of in-car air purifier, be specifically related to air monitering and purifier and control method thereof in a kind of car.

Background technology

Pollute for environment inside car, the World Health Organization clearly classifies itself and hypertension, AIDS etc. as one of ten big threats of human health jointly.National environmental protection portion and State General Administration for Quality Supervision united and issued " air quality evaluation guide in the passenger car " (GB/T27630-2011) on October 27th, 2011, stipulated the setting limit value of 8 kinds of common volatile organic matter concentration in the interior air of car, from formal enforcement on March 1 in 2012.More the in-car air purifier of market adopts strainer filtering, physical absorption, anion to discharge air in the car is purified, only possesses purification function, in real time various pernicious gases and open or close purification function automatically according to monitoring result in the monitoring car; And clean-up effect clarifier shape preferably mostly is cuboid, volume is bigger, arranges the problem of location limitation in car, and the less in-car air purifier of volume is function singleness then, clean-up effect is undesirable and can't weigh in real time, also can't work on behind the automobile flameout.

Summary of the invention

The technical problem to be solved in the present invention is: provide air monitering and purifier and control method thereof in a kind of car, air quality in the monitoring car, and the automatic purification function of opening after air quality exceeds standard in car in real time.

The present invention solves the problems of the technologies described above the technical scheme of taking to be:

Air monitering and purifier in a kind of car, it is characterized in that: it comprises housing and base, and the housing top is provided with display screen, and housing bottom is connected with base, and housing top is provided with the grid of giving vent to anger, and lower housing portion is provided with the air inlet grid; Enclosure interior is divided into two cavitys up and down by clean air package, makes noxious air enter lower chamber by the air inlet grid, enters upper cavity after purifying through clean air package, by the grid output of giving vent to anger; Be provided with sensor groups, turbine and turbo-dynamo for detection of pernicious gas in the air in the described lower chamber, be provided with anion generator and air blast successively along the gas throughput direction in the described upper cavity; Power supply is fixedly arranged in the described base;

It also comprises control circuit, and control circuit is arranged on the interior circuit board of housing, and control circuit comprises analog to digital conversion circuit, single-chip microcomputer, charging circuit and executing agency; The analog signal conversion that analog to digital conversion circuit is used for sensor groups is the discernible data signal of single-chip microcomputer; Charging circuit is used for giving described power source charges by Single-chip Controlling; Executing agency is used for the start and stop of control described turbo-dynamo, anion generator and air blast by Single-chip Controlling.

Press such scheme, described clean air package is hollow cylindrical, and its bottom is fixed by bearing and inner walls, and its top is connected with the arch sealing top.

Press such scheme, the inwall of described clean air package bottom is provided with acclivitous deflector.

Press such scheme, described sensor groups comprises Temperature Humidity Sensor, carbon monoxide transducer, VOC sensor, freon sensor and dust sensor.

Press such scheme, be provided with screen pack in the described air inlet grid.

Press such scheme, described clean air package comprises active carbon spongy layer, micro/meso porous molecular sieve layer and the filter filter layer that sets gradually along the air throughput direction.

Press such scheme, described base is cylindrical, and external diameter equates with vehicle-mounted water tumbler groove internal diameter.

Press such scheme, described power supply is electric capacity.

The control method of air monitering and purifier in a kind of above-mentioned car, it is characterized in that: it may further comprise the steps:

1) the The data threshold method to collecting obtains the parameter P after the standardization _s

2) parameter after the standardization is weighted summation, obtains quantitative evaluation parameter W;

3) according to the scope of quantitative evaluation parameter value, control corresponding executing agency and move.

By above-mentioned control method, it is characterized in that: the parameter P in the described step 1) _sComprise temperature parameter P _S0, humidity parameter P _S1, concentration of formaldehyde P _S2With carbonomonoxide concentration P _S3Their occurrence is:

Temperature parameter P _S0:

$P_{s0}=\left\{\begin{array}{cc}0& (V_{i0}<V_{b0})\\ (V_{i0}-V_{b0})/S0& (V_{i0}\&GreaterEqual;V_{b0})\end{array}\right.,$

V wherein _I0Be Current Temperatures, V _B0Be temperature threshold, S0 is the temperature standard parameter;

Humidity parameter P _S1:

${\mathrm{<figure-callout\; id="1"\; label="P\; s"\; filenames="HDA00003493421000011.png,HDA00003493421000021.png"\; state="\{\{state\}\}">P</figure-callout>}}_s=\left\{\begin{array}{cc}0& (V_{i1}>V_{b1})\\ (V_{i1}-V_{i1})/S1& (V_{i1}\&le;V_{b1})\end{array}\right.,$

V wherein _I1Be current humidity, V _B1Be the humidity threshold value, S1 is the humidity standard parameter;

Concentration of formaldehyde P _S2:

${\mathrm{<figure-callout\; id="2"\; label="P\; s"\; filenames="HDA00003493421000011.png"\; state="\{\{state\}\}">P</figure-callout>}}_s=\left\{\begin{array}{cc}0& (V_{i2}<V_{b2})\\ (V_{i2}-V_{b2})/S2& (V_{i2}\&GreaterEqual;V_{b2})\end{array}\right.,$

V wherein _I2Be current concentration of formaldehyde, V _B2Be the concentration of formaldehyde threshold value, S2 is the concentration of formaldehyde normalizing parameter;

Carbonomonoxide concentration P _S3:

${\mathrm{<figure-callout\; id="3"\; label="P\; s"\; filenames="HDA00003493421000011.png,HDA00003493421000021.png"\; state="\{\{state\}\}">P</figure-callout>}}_s=\left\{\begin{array}{cc}0& (V_{i3}<V_{b3})\\ (V_{i3}-V_{b3})/S3& (V_{i3}\&GreaterEqual;V_{b3})\end{array}\right.,$

V wherein _I3Be current carbonomonoxide concentration, V _B3Be the carbonomonoxide concentration threshold value, S3 is the carbonomonoxide concentration normalizing parameter.

By above-mentioned control method, it is characterized in that: the quantitative evaluation parameter W that described step 2) obtains comprises anion generator quantitative evaluation parameter W0, turbo-dynamo and air blast quantitative evaluation parameter W1 and buzzer quantitative evaluation parameter W2; Their computational process is as follows:

Anion generator quantitative evaluation parameter W0=K0*P _S0+ K1*P _S1+ K2*P _S2, K0+K1+K2=1 wherein;

Turbo-dynamo and air blast quantitative evaluation parameter W1=K3*P _S0+ K4*P _S2, K3+K4=1 wherein;

Buzzer quantitative evaluation parameter W2=K5*P _S2+ K6*P _S3, K5+K6=1 wherein;

Wherein K0, K1, K2, K3, K4, K5 and K6 are weight coefficient, are recorded or are provided by empirical value by experiment.

By above-mentioned control method, it is characterized in that: the control mode that described step 3) is concrete is as follows:

The signal of giving anion generator be divided into by the effect of anion generator stop, weak, stronger and strong 4 kinds; Work as W0=0, provide the instruction that stops, anion generator is not worked; When 0＜W0＜0.5, provide weak instruction; When 0.5＜W0＜1, provide stronger instruction; Work as W0〉1, provide strong instruction;

The signal of giving turbo-dynamo and air blast be divided into by the air quantity of turbine and air blast stop, weak, stronger and strong 4 kinds; Work as W1=0, provide the instruction that stops, turbo-dynamo and air blast are not worked; When 0＜W1＜0.5, provide weak instruction; When 0.5＜W1＜1, provide stronger instruction; Work as W1〉1, provide strong instruction;

The signal of giving buzzer be divided into by the volume of buzzer or frequency stop, weak and strong 3 kinds; Work as W2=0, provide the instruction that stops, turbo-dynamo and air blast are not worked; When 0＜W2＜1, provide weak instruction; Work as W2〉1, provide strong instruction.

Beneficial effect of the present invention is:

1, by adopting apparatus of the present invention and control method air quality in the monitoring car in real time, and air quality exceeds after the safety index value unlatching purification function automatically in car, and air quality is closed purification function after up to standard automatically in car.

2, by the device internal structure is optimized setting, for example arch sealing top, deflector etc. can utilize turbine to drive the gas shape motion of spinning in clean air package, strengthen clean-up effect.

3, summer, its internal temperature was more high than environment temperature, can reach more than 80 degrees centigrade during vehicle parking, therefore, adopt general chemical storage batteries, for example lithium battery etc., very likely have potential safety hazards such as blast, so optimization of the present invention selects super capacitor to postpone power supply for use; After vehicle is flame-out, can realize late release, for next driver provides good air quality into the car by super capacitor to the power supply of this device.

4, control method of the present invention is come the motion of each parts in the control device, saves energy when reaching clean-up effect by adopting rational control strategy.

5, this apparatus structure is simple, and volume is little, can be directly installed in the water tumbler groove in the car.

Description of drawings

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is the right view of Fig. 1.

Fig. 3 is the cutaway view of Fig. 1.

Among the figure: 1. display screen, the grid of 2. giving vent to anger, 3. air inlet grid, 4. base, 5. circuit board, 6. air blast, 7. arch sealing top, 8. clean air package, 9. deflector, 10. sensor groups, 11. turbine, 12. turbo-dynamoes, 13. super capacitors, 14. anion generators.

The specific embodiment

The present invention will be further described below in conjunction with instantiation and accompanying drawing.

Fig. 1 is the structural representation of one embodiment of the invention, and Fig. 2 is the right view of Fig. 1, and Fig. 3 is the cutaway view of Fig. 1, it comprises housing and base 4, the housing top is provided with display screen 1, and housing bottom is connected with base 4 that (base 4 is for cylindrical in the present embodiment, and external diameter equates with vehicle-mounted water tumbler groove internal diameter, can directly put into vehicle-mounted water tumbler groove during use), housing top is provided with the grid 2 of giving vent to anger, and lower housing portion is provided with air inlet grid 3, and is optional, be provided with screen pack in the air inlet grid, be used for filtering oarse-grained dust; Enclosure interior is divided into two cavitys up and down by clean air package 8, makes noxious air enter lower chamber by the air inlet grid, enters upper cavity after purifying through clean air package 8, by grid 2 outputs of giving vent to anger; Be provided with data in the air of measuring as required for detection of the sensor groups 10(sensor groups of pernicious gas in the air in the described lower chamber and arrange, sensor groups comprises Temperature Humidity Sensor, carbon monoxide transducer, VOC sensor, freon sensor and dust sensor in the present embodiment.), turbine 11 and turbo-dynamo 12, is provided with anion generator 14 and air blast 6 successively along the gas throughput direction in the described upper cavity; Power supply (being super capacitor 13 in the present embodiment) is fixedly arranged in the described base 4.

It also comprises control circuit, and control circuit is arranged on the interior circuit board 5 of housing, and control circuit comprises analog to digital conversion circuit, single-chip microcomputer, charging circuit and executing agency; The analog signal conversion that analog to digital conversion circuit is used for sensor groups 10 is the discernible data signal of single-chip microcomputer; Charging circuit is used for giving described power source charges by Single-chip Controlling; Executing agency is used for the start and stop of control described turbo-dynamo, anion generator and air blast by Single-chip Controlling.

Described clean air package 8 is hollow cylindrical, and its bottom is fixed by bearing and inner walls, and its top is connected with arch sealing top 7; The inwall of clean air package bottom is provided with acclivitous deflector 9.Clean air package 8 comprises active carbon spongy layer, micro/meso porous molecular sieve layer and the filter filter layer that sets gradually along the air throughput direction.

The control method of air monitering and purifier in a kind of above-mentioned car may further comprise the steps:

1) the The data threshold method to collecting obtains the parameter P after the standardization _s, parameter P in the present embodiment _sComprise temperature parameter P _S0, humidity parameter P _S1, concentration of formaldehyde P _S2With carbonomonoxide concentration P _S3Their occurrence is:

Temperature parameter P _S0:

$P_{s0}=\left\{\begin{array}{cc}0& (V_{i0}<V_{b0})\\ (V_{i0}-V_{b0})/S0& (V_{i0}\&GreaterEqual;V_{b0})\end{array}\right.,$

V wherein _I0Be Current Temperatures, V _B0Be temperature threshold, S0 is the temperature standard parameter;

Humidity parameter P _S1:

$P_{s1}=\left\{\begin{array}{cc}0& ({\mathrm{<figure-callout\; id="1"\; label="V\; i"\; filenames="HDA00003493421000011.png,HDA00003493421000021.png"\; state="\{\{state\}\}">V</figure-callout>}}_i>V_{b1})\\ (V_{i1}-V_{i1})/S1& ({\mathrm{<figure-callout\; id="1"\; label="V\; i"\; filenames="HDA00003493421000011.png,HDA00003493421000021.png"\; state="\{\{state\}\}">V</figure-callout>}}_i\&le;V_{b1})\end{array}\right.,$

V wherein _I1Be current humidity, V _B1Be the humidity threshold value, S1 is the humidity standard parameter;

Concentration of formaldehyde P _S2:

$P_{s2}=\left\{\begin{array}{cc}0& ({\mathrm{<figure-callout\; id="2"\; label="V\; i"\; filenames="HDA00003493421000011.png"\; state="\{\{state\}\}">V</figure-callout>}}_i<V_{b2})\\ (V_{i2}-V_{b2})/S2& ({\mathrm{<figure-callout\; id="2"\; label="V\; i"\; filenames="HDA00003493421000011.png"\; state="\{\{state\}\}">V</figure-callout>}}_i\&GreaterEqual;V_{b2})\end{array}\right.,$

V wherein _I2Be current concentration of formaldehyde, V _B2Be the concentration of formaldehyde threshold value, S2 is the concentration of formaldehyde normalizing parameter;

Carbonomonoxide concentration P _S3:

$P_{s3}=\left\{\begin{array}{cc}0& ({\mathrm{<figure-callout\; id="3"\; label="V\; i"\; filenames="HDA00003493421000011.png,HDA00003493421000021.png"\; state="\{\{state\}\}">V</figure-callout>}}_i<V_{b3})\\ (V_{i3}-V_{b3})/S3& ({\mathrm{<figure-callout\; id="3"\; label="V\; i"\; filenames="HDA00003493421000011.png,HDA00003493421000021.png"\; state="\{\{state\}\}">V</figure-callout>}}_i\&GreaterEqual;V_{b3})\end{array}\right.,$

V wherein _I3Be current carbonomonoxide concentration, V _B3Be the carbonomonoxide concentration threshold value, S3 is the carbonomonoxide concentration normalizing parameter.

As can be seen, Ps has characterized the degree that certain input parameter surpasses threshold value, according to actual needs or the kind of parameter also can arrange several groups more.

2) parameter after the standardization is weighted summation, obtains quantitative evaluation parameter W, quantitative evaluation parameter W comprises anion generator quantitative evaluation parameter W0, turbo-dynamo and air blast quantitative evaluation parameter W1 and buzzer quantitative evaluation parameter W2; Their computational process is as follows:

Anion generator quantitative evaluation parameter W0=K0*P _S0+ K1*P _S1+ K2*P _S2, K0+K1+K2=1 wherein;

Turbo-dynamo and air blast quantitative evaluation parameter W1=K3*P _S0+ K4*P _S2, K3+K4=1 wherein;

Buzzer quantitative evaluation parameter W2=K5*P _S2+ K6*P _S3, K5+K6=1 wherein;

Wherein K0, K1, K2, K3, K4, K5 and K6 are weight coefficient, are recorded or are provided by empirical value by experiment.

3) according to the scope of quantitative evaluation parameter value, to control corresponding executing agency and move, concrete control mode is as follows:

The signal of giving anion generator be divided into by the effect of anion generator stop, it is weak that (work in 10 minutes is once at interval for anion generator in the present embodiment, each work 5 minutes), strong (work in 5 minutes was once worked 5 minutes at every turn at interval) and strong (continuous firing) 4 kinds; Work as W0=0, provide the instruction that stops, anion generator is not worked; When 0＜W0＜0.5, provide weak instruction; When 0.5＜W0＜1, provide stronger instruction; Work as W0〉1, provide strong instruction;

The signal of giving turbo-dynamo and air blast be divided into by the air quantity of turbine and air blast stop, weak (PWM debugging, dutycycle is 50%), strong (PWM debugging, dutycycle is 80%) and (full speed operation) 4 kinds by force; Work as W1=0, provide the instruction that stops, turbo-dynamo and air blast are not worked; When 0＜W1＜0.5, provide weak instruction; When 0.5＜W1＜1, provide stronger instruction; Work as W1〉1, provide strong instruction;

The signal of giving buzzer be divided into by the volume of buzzer or frequency stop, weak (be interrupted and report to the police) and strong (continuing warning) 3 kinds; Work as W2=0, provide the instruction that stops, turbo-dynamo and air blast are not worked; When 0＜W2＜1, provide weak instruction; Work as W2〉1, provide strong instruction.

In the present invention, for the driver can check air quality index in the front truck easily, drive and do not influence it, with display screen 1 certain angle that tilted, the grid 2 of giving vent to anger is placed on housing top, can directly the gas that purified be transported near driver or the passenger.Air inlet grid 3 is arranged in lower housing portion, in air inlet grid inside one deck coarse strainer is arranged, and deadens dust and the foreign matter of large-size.Housing designs for cylindrical shape, and base 4 sizes are less than upper body, conveniently puts into the water tumbler groove of car.

After this device is connected cigar lighter socket, analog to digital conversion circuit on the circuit board 5 is used for the signal of receiving sensor group 10, single-chip microcomputer on the input circuit plate 5 then, carry out identification and the analysis of signal, if the air quality index is in the safe range of GB/T27630-2011, then the second best in quality signal of single-chip microcomputer delivery air is to display screen 1.If the air quality index exceeds the safe range of GB/T27630-2011, then the ropy signal of single-chip microcomputer delivery air is to display screen 1, be communicated with warning circuit and expanded circuit simultaneously, control turbo-dynamo 12, air blast 6 and anion generator 14 work purify air in the car.When sensor groups 10 monitor in the car air quality up to standard after, single-chip microcomputer on the circuit board 5 is then by warning circuit and expanded circuit, close turbo-dynamo 12, air blast 6 and anion generator 14, reach the energy-saving effect of the interior air monitering of car and purification integrating device.Arrive the working life of clean air package 8 after the time in turbo-dynamo 12, air blast 6 and anion generator 14 operations, single-chip microcomputer on the circuit board 5 is then exported the information of changing clean air package 8 to display screen 1, and (this step implementation is in the present embodiment: carry out timing when starting purification function, stop timing when stopping purification function, prompting needs to change clean air package when accumulating duration at last and reach 10000 hours).After this device is connected cigar lighter socket, Single-chip Controlling super capacitor 13 on the circuit board 5 charges automatically, after vehicle is flame-out, change by super capacitor power supply is provided, continuation is monitored the air quality in the vehicle, and start purification function when needed, realize the late release of the interior air monitering of car and purification integrating device.

When purification function started, noxious air was entered in the lower chamber via turbine 11 by air inlet grid 3 under the drive of turbine 11.Cylinder bodily form clean air package 8 is made up of active carbon spongy layer, 4A molecular sieve layer and fine filtering filter layer respectively from inside to outside.Air under the effect of turbine 11 and deflector 9, ascending motion twist in lower chamber.The bottom of sealing top 7 is arch design, can allow uprising gas form and rolls stream, and therefore, the gas to be clean that enters lower chamber is spiralling in the horizontal direction on the one hand, and the opposing party is spiralling in the vertical direction.Under action of centrifugal force, the dust of larger particles and foreign material can be adsorbed on the clean air package 8 faster in the air, simultaneously, elongated at the spin stroke of air in clean air package 8 of shape motion of level and vertical direction, strengthened the clean-up effect of air evolution assembly.Cleaned air passes flows out via the skin of clean air package 8, moves upward under the effect of air blast 6, and carry out double purification through anion generator 14 time.Finally by being discharged by the grid 2 of giving vent to anger by air blast 6.

Claims (12)

1. air monitering and purifier in the car, it is characterized in that: it comprises housing and base, and the housing top is provided with display screen, and housing bottom is connected with base, and housing top is provided with the grid of giving vent to anger, and lower housing portion is provided with the air inlet grid; Enclosure interior is divided into two cavitys up and down by clean air package, makes noxious air enter lower chamber by the air inlet grid, enters upper cavity after purifying through clean air package, by the grid output of giving vent to anger; Be provided with sensor groups, turbine and turbo-dynamo for detection of pernicious gas in the air in the described lower chamber, be provided with anion generator and air blast successively along the gas throughput direction in the described upper cavity; Power supply is fixedly arranged in the described base;

It also comprises control circuit, and control circuit is arranged on the interior circuit board of housing, and control circuit comprises analog to digital conversion circuit, single-chip microcomputer, charging circuit and executing agency; The analog signal conversion that analog to digital conversion circuit is used for sensor groups is the discernible data signal of single-chip microcomputer; Charging circuit is used for giving described power source charges by Single-chip Controlling; Executing agency is used for the start and stop of control described turbo-dynamo, anion generator and air blast by Single-chip Controlling.

2. air monitering and purifier in the car according to claim 1, it is characterized in that: described clean air package is hollow cylindrical, and its bottom is fixed by bearing and inner walls, and its top is connected with the arch sealing top.

3. air monitering and purifier in the car according to claim 2, it is characterized in that: the inwall of described clean air package bottom is provided with acclivitous deflector.

4. air monitering and purifier in the car according to claim 1, it is characterized in that: described sensor groups comprises Temperature Humidity Sensor, carbon monoxide transducer, VOC sensor, freon sensor and dust sensor.

5. air monitering and purifier in the car according to claim 1 is characterized in that: be provided with screen pack in the described air inlet grid.

6. according to air monitering and purifier in claim 2 or the 3 described cars, it is characterized in that: described clean air package comprises active carbon spongy layer, micro/meso porous molecular sieve layer and the filter filter layer that sets gradually along the air throughput direction.

7. according to air monitering and purifier in any described car in the claim 1 to 5, it is characterized in that: described base is cylindrical, and external diameter equates with vehicle-mounted water tumbler groove internal diameter.

8. according to air monitering and purifier in any described car in the claim 1 to 5, it is characterized in that: described power supply is electric capacity.

9. the control method of air monitering and purifier in the described car of claim 1, it is characterized in that: it may further comprise the steps:

1) the The data threshold method to collecting obtains the parameter P after the standardization _s

2) parameter after the standardization is weighted summation, obtains quantitative evaluation parameter W;

3) according to the scope of quantitative evaluation parameter value, control corresponding executing agency and move.

10. control method according to claim 9 is characterized in that: the parameter P in the described step 1) _sComprise temperature parameter P _S0, humidity parameter P _S1, concentration of formaldehyde P _S2With carbonomonoxide concentration P _S3Their occurrence is:

Temperature parameter P _S0:

$P_{s0}=\left\{\begin{array}{cc}0& (V_{i0}<V_{b0})\\ (V_{i0}-V_{b0})/S0& (V_{i0}\&GreaterEqual;V_{b0})\end{array}\right.,$

V wherein _I0Be Current Temperatures, V _B0Be temperature threshold, S0 is the temperature standard parameter;

Humidity parameter P _S1:

$P_{s1}=\left\{\begin{array}{cc}0& (V_{i1}>V_{b1})\\ (V_{i1}-V_{i1})/S1& (V_{i1}\&le;V_{b1})\end{array}\right.,$

V wherein _I1Be current humidity, V _B1Be the humidity threshold value, S1 is the humidity standard parameter;

Concentration of formaldehyde P _S2:

$P_{s2}=\left\{\begin{array}{cc}0& (V_{i2}<V_{b2})\\ (V_{i2}-V_{b2})/S2& (V_{i2}\&GreaterEqual;V_{b2})\end{array}\right.,$

V wherein _I2Be current concentration of formaldehyde, V _B2Be the concentration of formaldehyde threshold value, S2 is the concentration of formaldehyde normalizing parameter;

Carbonomonoxide concentration P _S3:

$P_{s3}=\left\{\begin{array}{cc}0& (V_{i3}<V_{b3})\\ (V_{i3}-V_{b3})/S3& (V_{i3}\&GreaterEqual;V_{b3})\end{array}\right.,$

V wherein _I3Be current carbonomonoxide concentration, V _B3Be the carbonomonoxide concentration threshold value, S3 is the carbonomonoxide concentration normalizing parameter.

11. control method according to claim 10 is characterized in that: the quantitative evaluation parameter W that described step 2) obtains comprises anion generator quantitative evaluation parameter W0, turbo-dynamo and air blast quantitative evaluation parameter W1 and buzzer quantitative evaluation parameter W2; Their computational process is as follows:

Anion generator quantitative evaluation parameter W0=K0*P _S0+ K1*P _S1+ K2*P _S2, K0+K1+K2=1 wherein;

Turbo-dynamo and air blast quantitative evaluation parameter W1=K3*P _S0+ K4*P _S2, K3+K4=1 wherein;

Buzzer quantitative evaluation parameter W2=K5*P _S2+ K6*P _S3, K5+K6=1 wherein;

Wherein K0, K1, K2, K3, K4, K5 and K6 are weight coefficient, are recorded or are provided by empirical value by experiment.

12. control method according to claim 11 is characterized in that: the control mode that described step 3) is concrete is as follows:

The signal of giving anion generator be divided into by the effect of anion generator stop, weak, stronger and strong 4 kinds; Work as W0=0, provide the instruction that stops, anion generator is not worked; When 0＜W0＜0.5, provide weak instruction; When 0.5＜W0＜1, provide stronger instruction; Work as W0〉1, provide strong instruction;

The signal of giving turbo-dynamo and air blast be divided into by the air quantity of turbine and air blast stop, weak, stronger and strong 4 kinds; Work as W1=0, provide the instruction that stops, turbo-dynamo and air blast are not worked; When 0＜W1＜0.5, provide weak instruction; When 0.5＜W1＜1, provide stronger instruction; Work as W1〉1, provide strong instruction;

The signal of giving buzzer be divided into by the volume of buzzer or frequency stop, weak and strong 3 kinds; Work as W2=0, provide the instruction that stops, turbo-dynamo and air blast are not worked; When 0＜W2＜1, provide weak instruction; Work as W2〉1, provide strong instruction.

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