CN103344014B - Air monitering and purifier and control method thereof in car - Google Patents

Abstract

The invention provides air monitering and purifier and control method thereof in a kind of car, comprise housing and base, housing tip is provided with display screen, and housing bottom is connected with base, and housing upper is provided with grid of giving vent to anger, and lower housing portion is provided with air inlet grid; Enclosure interior is divided into upper and lower two cavitys by clean air package, is provided with the sensor group for detecting pernicious gas in air, turbine and turbo-dynamo in lower chamber, is provided with anion generator and air blast successively in upper cavity along gas throughput direction; Base internal fixtion has power supply; Also comprise control circuit, control circuit comprises analog to digital conversion circuit, single-chip microcomputer, charging circuit and executing agency.By adopting apparatus of the present invention and control method can Real-Time Monitoring in-car air quality, and after in-car air quality exceeds safety index value, automatically open purification function, at in-car air quality rear automatic closedown purification function up to standard.

Description

Air monitering and purifier and control method thereof in 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, itself and the common column such as hypertension, AIDS are clearly that ten of human health one of threatens greatly by the World Health Organization.On October 27th, 2011 national environmental protection portion and State General Administration for Quality Supervision combine and issued " in passenger car Air Quality Evaluation guide " (GB/T27630-2011), to define in car in air the setting limit value of 8 kinds of common volatile organic matter concentration, formal enforcement from 1 day March in 2012.In-car air purifier many employings strainer filtering of market, physical absorption, negative ion discharge purify air in car, only possess purification function, can not various pernicious gas automatically open according to monitoring result or close purification function in Real-Time Monitoring car; And the good clarifier shape of clean-up effect mostly is cuboid, volume is comparatively large, in the problem of Bus inner layout location limitation, and the in-car air purifier then function singleness of small volume, clean-up effect is undesirable and cannot weigh in real time, also cannot work on after 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, can Real-Time Monitoring in-car air quality, and automatically opens purification function after in-car air quality exceeds standard.

The present invention for solving the problems of the technologies described above taked technical scheme is:

Air monitering and purifier in a kind of car, it is characterized in that: it comprises housing and base, and housing tip is provided with display screen, and housing bottom is connected with base, and housing upper is provided with grid of giving vent to anger, lower housing portion is provided with air inlet grid; Enclosure interior is divided into upper and lower two cavitys by clean air package, makes noxious air enter lower chamber by air inlet grid, after clean air package purification, enter upper cavity, and by giving vent to anger, grid exports; Being provided with the sensor group for detecting pernicious gas in air, turbine and turbo-dynamo in described lower chamber, in described upper cavity, being provided with anion generator and air blast successively along gas throughput direction; Described base internal fixtion has power supply;

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

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

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

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

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

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

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

By such scheme, described power supply is electric capacity.

A control method for air monitering and purifier in above-mentioned car, is characterized in that: it comprises the following steps:

1) to the data acquisition threshold method collected, the parameter P after standardization is obtained _s;

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

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

By above-mentioned control method, it is characterized in that: described step 1) in parameter P _scomprise temperature parameter P _s0, humidity parameter P _s1, concentration of formaldehyde P _s2with carbonomonoxide concentration P _s3; Their occurrence is:

Temperature parameter P _s0:

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

Wherein V _i0for Current Temperatures, V _b0for temperature threshold, S0 is temperature standard parameter;

Humidity parameter P _s1:

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

Wherein V _i1for current humidity, V _b1for humidity threshold, S1 is humidity standard parameter;

Concentration of formaldehyde P _s2:

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

Wherein V _i2for current concentration of formaldehyde, V _b2for concentration of formaldehyde threshold value, S2 is concentration of formaldehyde normalizing parameter;

Carbonomonoxide concentration P _s3:

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

Wherein V _i3for current carbonomonoxide concentration, V _b3for carbonomonoxide concentration threshold value, S3 is carbonomonoxide concentration normalizing parameter.

By above-mentioned control method, it is characterized in that: described step 2) the quantitative evaluation parameter W that 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, wherein K0+K1+K2=1;

Turbo-dynamo and air blast quantitative evaluation parameter W1=K3*P _s0+ K4*P _s2, wherein K3+K4=1;

Buzzer quantitative evaluation parameter W2=K5*P _s2+ K6*P _s3, wherein K5+K6=1;

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

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

To the signal of anion generator to be divided into by the effect of anion generator stop, weak, stronger and strong 4 kinds; Work as W0=0, provide the instruction stopped, anion generator does not work; Work as 0<W0<0.5, provide weak instruction; Work as 0.5<W0<1, provide stronger instruction; Work as W0>1, provide strong instruction;

To the signal of turbo-dynamo and air blast to 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 stopped, turbo-dynamo and air blast do not work; Work as 0<W1<0.5, provide weak instruction; Work as 0.5<W1<1, provide stronger instruction; Work as W1>1, provide strong instruction;

To the signal of buzzer to be divided into by the volume of buzzer or frequency stop, weak and strong 3 kinds; Work as W2=0, provide the instruction stopped, turbo-dynamo and air blast do not work; Work as 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 can Real-Time Monitoring in-car air quality, and after in-car air quality exceeds safety index value, automatically purification function be opened, at in-car air quality rear automatic closedown purification function up to standard.

2, by being optimized setting to device internal structure, such as arch sealing top, deflector etc., can utilize turbine drive gas spin in clean air package shape motion, strengthen clean-up effect.

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

4, the motion of control method of the present invention by adopting rational control strategy to carry out each parts in control device, saves electric energy while reaching clean-up effect.

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

Accompanying drawing explanation

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 sectional view of Fig. 1.

In figure: 1. display screen, 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 group, 11. turbines, 12. turbo-dynamoes, 13. super capacitors, 14. anion generators.

Detailed description of the invention

Below in conjunction with instantiation and accompanying drawing, the present invention will be further described.

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 sectional view of Fig. 1, it comprises housing and base 4, housing tip is provided with display screen 1, housing bottom is connected with base 4, and (in the present embodiment, base 4 is for cylindrical, external diameter is equal with vehicle-mounted water tumbler groove internal diameter, vehicle-mounted water tumbler groove directly can be put into) during use, housing upper is provided with grid 2 of giving vent to anger, and lower housing portion is provided with air inlet grid 3, optionally, screen pack is provided with, for filtering oarse-grained dust in air inlet grid; Enclosure interior is divided into upper and lower two cavitys by clean air package 8, makes noxious air enter lower chamber by air inlet grid, and after clean air package 8 purifies, enter upper cavity, by giving vent to anger, grid 2 exports; (data and arranging in the air that sensor group is measured as required, in the present embodiment, sensor group comprises Temperature Humidity Sensor, carbon monoxide transducer, VOC sensor, freon sensor and dust sensor to be provided with sensor group 10 for detecting pernicious gas in air in described lower chamber.), turbine 11 and turbo-dynamo 12, is provided with anion generator 14 and air blast 6 successively along gas throughput direction in described upper cavity; Described base 4 internal fixtion has power supply (being super capacitor 13 in the present embodiment).

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

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

A control method for air monitering and purifier in above-mentioned car, comprises the following steps:

1) to the data acquisition threshold method collected, the parameter P after standardization is obtained _s, parameter P in the present embodiment _scomprise temperature parameter P _s0, humidity parameter P _s1, concentration of formaldehyde P _s2with carbonomonoxide concentration P _s3; Their occurrence is:

Temperature parameter P _s0:

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

Wherein V _i0for Current Temperatures, V _b0for temperature threshold, S0 is temperature standard parameter;

Humidity parameter P _s1:

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

Wherein V _i1for current humidity, V _b1for humidity threshold, S1 is humidity standard parameter;

Concentration of formaldehyde P _s2:

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

Wherein V _i2for current concentration of formaldehyde, V _b2for concentration of formaldehyde threshold value, S2 is concentration of formaldehyde normalizing parameter;

Carbonomonoxide concentration P _s3:

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

Wherein V _i3for current carbonomonoxide concentration, V _b3for carbonomonoxide concentration threshold value, S3 is carbonomonoxide concentration normalizing parameter.

Can find out, Ps characterizes the degree that certain input parameter exceedes threshold value, according to actual needs or the kind of parameter also can arrange several groups more.

2) be weighted summation to the parameter after standardization, obtain 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, wherein K0+K1+K2=1;

Turbo-dynamo and air blast quantitative evaluation parameter W1=K3*P _s0+ K4*P _s2, wherein K3+K4=1;

Buzzer quantitative evaluation parameter W2=K5*P _s2+ K6*P _s3, wherein K5+K6=1;

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

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

To the signal of anion generator to be divided into by the effect of anion generator stop, it is weak that (in the present embodiment, the work in 10 minutes of anion generator interval once, every task 5 minutes), comparatively strong (interval work in 5 minutes once, every task 5 minutes) and (continuous firing) 4 kinds by force; Work as W0=0, provide the instruction stopped, anion generator does not work; Work as 0<W0<0.5, provide weak instruction; Work as 0.5<W0<1, provide stronger instruction; Work as W0>1, provide strong instruction;

To the signal of turbo-dynamo and air blast to be divided into by the air quantity of turbine and air blast stop, weak (PWM debugs, and dutycycle is 50%), comparatively strong (PWM debugs, and dutycycle is 80%) and (full speed operation) 4 kinds by force; Work as W1=0, provide the instruction stopped, turbo-dynamo and air blast do not work; Work as 0<W1<0.5, provide weak instruction; Work as 0.5<W1<1, provide stronger instruction; Work as W1>1, provide strong instruction;

To the signal of buzzer to 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 stopped, turbo-dynamo and air blast do not work; Work as 0<W2<1, provide weak instruction; Work as W2>1, provide strong instruction.

In the present invention, in order to driver can check air quality index in current vehicle easily, and do not affect its driving, tilted display screen 1 certain angle, grid 2 of giving vent to anger is placed on housing upper, can be directly transported near driver or passenger by cleaned gas.Air inlet grid 3 is arranged in lower housing portion, has one deck coarse strainer in air inlet grid inside, deadens dust and the foreign matter of large-size.Housing designs for cylindrical shape, and base 4 size is less compared with upper body, facilitates in the water tumbler groove in placing car.

After this device connects cigar lighter socket, analog to digital conversion circuit on circuit board 5 is used for the signal of receiving sensor group 10, then the single-chip microcomputer on input circuit plate 5, carry out identification and the analysis of signal, if air quality indexes is in the safe range of GB/T27630-2011, then the second best in quality signal of single-chip microcomputer delivery air is on display screen 1.If air quality indexes exceeds the safe range of GB/T27630-2011, then the ropy signal of single-chip microcomputer delivery air is on display screen 1, be communicated with warning circuit and expanded circuit simultaneously, control turbo-dynamo 12, air blast 6 and anion generator 14 and work, purifying in-vehicle air.When sensor group 10 monitor in-car air quality up to standard after, single-chip microcomputer on 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 air monitering and purification integrating device in car.After running at turbo-dynamo 12, air blast 6 and anion generator 14 operating life time arriving clean air package 8, single-chip microcomputer on circuit board 5 then exports to display screen 1 information changing clean air package 8, and (in the present embodiment, this step implementation is: while startup purification function, carry out timing, stop timing when stopping purification function, pointing out time finally accumulation duration reaches 10000 hours needs to change clean air package).After this device connects cigar lighter socket, Single-chip Controlling super capacitor 13 automatic charging on circuit board 5, after vehicle is flame-out, change and provide power supply by super capacitor, continue to monitor the air quality in vehicle, and start purification function when needed, realize the late release of air monitering and purification integrating device in car.

When purification function starts, noxious air, under the drive of turbine 11, is entered in lower chamber via turbine 11 by air inlet grid 3.Cylindrical clean air package 8 is made up of active carbon spongy layer, 4A molecular sieve layer and fine filtering filter layer from inside to outside respectively.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, uprising gas can be allowed to be formed and roll stream, and therefore, enter the gas one side to be clean spiralling in the horizontal direction of lower chamber, the opposing party is spiralling in the vertical direction.Under the influence of centrifugal force, in air, the dust of larger particles and foreign material can be adsorbed on clean air package 8 faster, meanwhile, the stroke of air in clean air package 8 of shape of spinning in horizontal and vertical direction motion is elongated, enhances the clean-up effect of air evolution assembly.Air after purification flows out via the skin of clean air package 8, moves upward, and carry out double purification under the effect of air blast 6 when through anion generator 14.Discharged by grid 2 of giving vent to anger finally by by air blast 6.

Claims (3)

1. the control method of air monitering and purifier in car, is characterized in that:

In car, air monitering and purifier comprise housing and base, and housing tip is provided with display screen, and housing bottom is connected with base, and housing upper is provided with grid of giving vent to anger, and lower housing portion is provided with air inlet grid; Enclosure interior is divided into upper and lower two cavitys by clean air package, makes noxious air enter lower chamber by air inlet grid, after clean air package purification, enter upper cavity, and by giving vent to anger, grid exports; Being provided with the sensor group for detecting pernicious gas in air, turbine and turbo-dynamo in described lower chamber, in described upper cavity, being provided with anion generator and air blast successively along gas throughput direction; Described base internal fixtion has power supply;

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

Method comprises the following steps:

1) to the data acquisition threshold method collected, the parameter P after standardization is obtained _s;

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

3) according to the scope of quantitative evaluation parameter value, control corresponding executing agency and carry out action;

Described step 1) in parameter P _scomprise temperature parameter P _s0, humidity parameter P _s1, concentration of formaldehyde P _s2with carbonomonoxide concentration P _s3; Their occurrence is:

Temperature parameter P _s0:

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

Wherein V _i0for Current Temperatures, V _b0for temperature threshold, S0 is temperature standard parameter;

Humidity parameter P _s1:

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

Wherein V _i1for current humidity, V _b1for humidity threshold, S1 is humidity standard parameter;

Concentration of formaldehyde P _s2:

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

Wherein V _i2for current concentration of formaldehyde, V _b2for concentration of formaldehyde threshold value, S2 is concentration of formaldehyde normalizing parameter;

Carbonomonoxide concentration P _s3:

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

Wherein V _i3for current carbonomonoxide concentration, V _b3for carbonomonoxide concentration threshold value, S3 is carbonomonoxide concentration normalizing parameter.

2. control method according to claim 1, is characterized in that: described step 2) the quantitative evaluation parameter W that 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, wherein K0+K1+K2=1;

Turbo-dynamo and air blast quantitative evaluation parameter W1=K3*P _s0+ K4*P _s2, wherein K3+K4=1;

Buzzer quantitative evaluation parameter W2=K5*P _s2+ K6*P _s3, wherein K5+K6=1;

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

3. control method according to claim 1, is characterized in that: described step 3) concrete control mode is as follows:

To the signal of anion generator to be divided into by the effect of anion generator stop, weak, stronger and strong 4 kinds; Work as W0=0, provide the instruction stopped, anion generator does not work; Work as 0<W0<0.5, provide weak instruction; Work as 0.5<W0<1, provide stronger instruction; Work as W0>1, provide strong instruction;

To the signal of turbo-dynamo and air blast to 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 stopped, turbo-dynamo and air blast do not work; Work as 0<W1<0.5, provide weak instruction; Work as 0.5<W1<1, provide stronger instruction; Work as W1>1, provide strong instruction;

To the signal of buzzer to be divided into by the volume of buzzer or frequency stop, weak and strong 3 kinds; Work as W2=0, provide the instruction stopped, turbo-dynamo and air blast do not work; Work as 0<W2<1, provide weak instruction; Work as W2>1, provide strong instruction.