CN109813841A - A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device - Google Patents
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device Download PDFInfo
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Abstract
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, is assemblied in kitchen fixed part.The polycyclic aromatic hydrocarbon detection device carries out that the current polycyclic aromatic hydrocarbon concentration of cooking zone is calculated according to the cooking zone temperature and oil smoke size of detection.The polycyclic aromatic hydrocarbon detection device is provided with temperature sensing module for detecting cooking zone temperature, for obtaining to the image analysis of cooking zone oil smoke and in real time generating the image capture module of oil smoke size and the computing module of the polycyclic aromatic hydrocarbon concentration for calculating current cooking zone, and temperature sensing module and image capture module are electrically connected with computing module respectively.Polycyclic aromatic hydrocarbon detection device of the invention also has blast velocity control module, cue module and firepower control module, current environment Health Category automatically adjusts the wind speed of external kitchen ventilator and the firepower of external stove, making the concentration of the polycyclic aromatic hydrocarbon of current environment reduces, while call user's attention is protected.
Description
Technical field
The present invention relates to kitchen fume detection field, in particular to a kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device.
Background technique
In the modern life, many families can generate a large amount of oil smoke in cooking.Studies have shown that cooking fume ingredient is multiple
It is miscellaneous, there is certain toxicity on inhalation, immunotoxicity and mutagenicity, there are certain harm to human health.In soot gas
Include multiring aromatic hydrocarbon substance, has considerable part that there is carcinogenicity in multiring aromatic hydrocarbon substance, such as benzo [α] pyrene.Existing skill
The kitchen ventilator of art can not oil smoke in the current cooking environments of automatic identification multiring aromatic hydrocarbon substance concentration.
Therefore in view of the shortcomings of the prior art, providing a kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device to solve the prior art
It is insufficient very necessary.
Summary of the invention
One of purpose of the invention is to avoid in place of the deficiencies in the prior art and to provide a kind of kitchen fume formula more
Cycloaromatics detection device.The harmful substance of oil smoke before the kitchen fume formula polycyclic aromatic hydrocarbon detection device can identify in cooking environments
Polycyclic aromatic hydrocarbon concentration.
Above-mentioned purpose of the invention is realized by following technical measures:
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device is provided, kitchen fixed part is assemblied in.
The polycyclic aromatic hydrocarbon detection device according to the cooking zone temperature and oil smoke size of detection carries out that cooking area is calculated
The current polycyclic aromatic hydrocarbon concentration in domain.
The polycyclic aromatic hydrocarbon detection device is provided with temperature sensing module for detecting cooking zone temperature, for culinary art
Region oil smoke image analysis simultaneously obtains generating the image capture module of oil smoke size and for calculating current cooking zone in real time
The computing module of polycyclic aromatic hydrocarbon concentration, temperature sensing module and image capture module are electrically connected with computing module respectively.
Preferably, above-mentioned kitchen fixed part is wall, hearth or kitchen electric equipment.
Preferably, above-mentioned temperature sensing module induction cook regional temperature obtains temperature signal and believes obtained temperature
Number computing module is transmitted to as temperature output signal, image capture module acquisition cooking zone oil smoke image obtains oil smoke output
Signal is simultaneously transmitted to computing module, and computing module receives the temperature output signal and image capture module of temperature sensing module respectively
Oil smoke output signal, then to temperature output signal and oil smoke output signal processing obtain the polycyclic of current cooking zone in real time
Density of aromatic hydrocarbon.
Preferably, above-mentioned computing module is to construct to obtain about harmful in temperature and oil smoke size and oil smoke with mathematical modeling
The computing module of the mathematical relationship of polycyclic aromatic hydrocarbon concentration in gas.
Preferably, above-mentioned computing module is lienar for computing module, NONLINEAR CALCULATION module, exponential type computing module, power
Type computing module, logarithmic computing module, neural network computing module, machine learning computing module or deep learning calculate
Module.
Preferably, the calculation formula of above-mentioned computing module is formula (I),
CPolycyclic aromatic hydrocarbon+ 475.1 formula (I) of+0.33 κ λ of+0.05 λ of=0.05 κ,
Wherein CPolycyclic aromatic hydrocarbonFor the multiring aromatic hydrocarbon gas total concentration in cooking zone, κ is the output data of temperature sensing module, λ
For the output data of image capture module.
Another preferred, the calculation formula of above-mentioned computing module is formula (II),
CPolycyclic aromatic hydrocarbon=0.05 κ0.98+0.05λ1.05+ 469.5 formula of+0.33 κ λ (II),
Wherein CPolycyclic aromatic hydrocarbonFor the multiring aromatic hydrocarbon gas total concentration in cooking zone, κ is the output data of temperature sensing module, λ
For the output data of image capture module.
Preferably, above-mentioned computing module is the computing module that Environmental Health grade classification is carried out according to polycyclic aromatic hydrocarbon concentration.
Be averaged limiting concentration and polycyclic aromatic hydrocarbon concentrations versus of benzo [a] pyrene of national regulations carries out environmental rating division.
Work as CPolycyclic aromatic hydrocarbon< CBenzo [a] pyreneWhen, it is determined as Health Category, works as CPolycyclic aromatic hydrocarbon≥CBenzo [a] pyreneWhen, it is determined as unhealthy grade.
Wherein CBenzo [a] pyreneIt is averaged limiting concentration, and C for benzo [a] pyrene of national regulationsBenzo [a] pyrene=1ng/m3。
Benzo [a] pyrene of polycyclic aromatic hydrocarbon concentration and national regulations be averaged limiting concentration be divided by carry out Environmental Health grade draw
Point, as shown in formula (III):
As 0≤ε≤0.5, then it is determined as Health Category, as 0.5 < ε≤1, is then determined as good level, as ε > 1
When, then it is determined as unhealthy grade.
Preferably, above-mentioned polycyclic aromatic hydrocarbon environmental rating division is to tie after polycyclic aromatic hydrocarbon concentration and the weighting of equivalent virulence factor
The polycyclic aromatic hydrocarbon environmental rating that fruit carries out divides.
By formula (IV) count polycyclic aromatic hydrocarbon total yield toxic concentration:
Wherein BEQ is the total yield toxic concentration of polycyclic aromatic hydrocarbon, and μ is the label of polycyclic aromatic hydrocarbon type, 1≤μ≤ξ and μ and ξ
For natural number, beqμFor the equivalent toxic concentration of μ kind polycyclic aromatic hydrocarbon, beqμIt is counted by formula (V),
beqμ=Cμ*TEFμFormula (V),
CμFor the concentration of the content of μ kind polycyclic aromatic hydrocarbon, TEFμFor the corresponding equivalent virulence factor of μ kind polycyclic aromatic hydrocarbon.
The total yield toxic concentration of polycyclic aromatic hydrocarbon and benzo [a] pyrene of national regulations be averaged limiting concentration comparison carry out environment
Grade classification.
As BEQ < CBenzo [a] pyreneWhen, it is determined as Health Category, as BEQ >=CBenzo [a] pyreneWhen, judgement is then determined as unhealthy etc.
Grade.
The total yield toxic concentration of polycyclic aromatic hydrocarbon and benzo [a] pyrene of the national regulations limiting concentration that is averaged are divided by and carry out environment
Health Category divides, such as formula (III):
As 0≤δ≤0.5, then it is determined as Health Category, as 0 < δ≤1, is then determined as good level, as δ > 1,
Then it is determined as unhealthy grade.
Polycyclic aromatic hydrocarbon detection device is additionally provided with blast velocity control module, and blast velocity control module is electrically connected with computing module, wind
Fast control module is electrically connected with external oil machine.
Blast velocity control module carries out wind according to the velocity regulator that the environmental rating that computing module is sent controls external oil machine
Velocity modulation section.
Polycyclic aromatic hydrocarbon detection device is additionally provided with cue module, and cue module is electrically connected with computing module.
Preferably, the environmental rating that above-mentioned cue module is sent according to computing module carries out current environment grade to user and mentions
Show.
Polycyclic aromatic hydrocarbon detection device is additionally provided with firepower control module, and firepower control module is electrically connected with computing module, fire
Power control module is electrically connected with external stove.
Preferably, above-mentioned firepower control module carries out firepower tune to external stove according to the environmental rating that computing module is sent
Section.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device of the invention, is assemblied in kitchen fixed part.Polycyclic aromatic hydrocarbon inspection
Device is surveyed to be carried out that the current polycyclic aromatic hydrocarbon concentration of cooking zone is calculated according to the cooking zone temperature and oil smoke size of detection.
The polycyclic aromatic hydrocarbon detection device is provided with temperature sensing module for detecting cooking zone temperature, for cooking zone oil smoke
Image analysis simultaneously obtains the image capture module for generating oil smoke size and the polycyclic aromatic hydrocarbon for calculating current cooking zone in real time
The computing module of concentration, temperature sensing module and image capture module are electrically connected with computing module respectively.Polycyclic virtue of the invention
Hydrocarbon detection device also has blast velocity control module, cue module and firepower control module, the automatic adjustment of current environment Health Category
The firepower of the wind speed of external kitchen ventilator and external stove, reduces the concentration of the polycyclic aromatic hydrocarbon of current environment, while reminding user
Pay attention to protection.
Detailed description of the invention
Using attached drawing, the present invention is further illustrated, but the content in attached drawing is not constituted to any limit of the invention
System.
Fig. 1 is a kind of workflow schematic diagram of kitchen fume formula polycyclic aromatic hydrocarbon detection device of embodiment 1.
Fig. 2 is a kind of workflow schematic diagram of kitchen fume formula polycyclic aromatic hydrocarbon detection device of embodiment 4.
Specific embodiment
Technical solution of the present invention is described further with the following Examples.
Embodiment 1.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, as shown in Figure 1, being assemblied in kitchen fixed part.
Polycyclic aromatic hydrocarbon detection device according to the cooking zone temperature and oil smoke size of detection carries out that cooking zone is calculated
Current polycyclic aromatic hydrocarbon concentration.
Polycyclic aromatic hydrocarbon detection device is provided with temperature sensing module for detecting cooking zone temperature, for cooking area
Domain oil smoke image analysis simultaneously obtains generating the image capture module of oil smoke size and for calculating the more of current cooking zone in real time
The computing module of cycloaromatics concentration, temperature sensing module and image capture module are electrically connected with computing module respectively.
Kitchen fixed part of the invention can be wall, hearth or kitchen electric equipment.The kitchen electric equipment can be electricity
Refrigerator, CCTV for kitchen use, oven or micro-wave oven etc., only can be in the electric appliance that kitchen uses all in protection model of the invention
It encloses.
The present embodiment is specially that polycyclic aromatic hydrocarbon detection device is fixed on wall.
Temperature sensing module induction cook regional temperature obtains temperature signal and using obtained temperature signal as temperature
Output signal is transmitted to computing module, and image capture module acquisition cooking zone oil smoke image obtains oil smoke output signal and transmits
To computing module, computing module receives the oil smoke output of the temperature output signal and image capture module of temperature sensing module respectively
Then signal obtains the polycyclic aromatic hydrocarbon concentration of current cooking zone in real time to temperature output signal and the processing of oil smoke output signal.
Computing module constructs to obtain about temperature and oil smoke size and polycyclic virtue in pernicious gas in oil smoke with mathematical modeling
The computing module of the mathematical relationship of hydrocarbon concentration.
Computing module of the invention is obtained by mathematical modeling, and mathematical modeling is to collect different temperatures and oil smoke by experiment
The mathematical relationship of pernicious gas polycyclic aromatic hydrocarbon concentration in the factors such as size and oil smoke.Sampling inspection is carried out according to different experiment conditions
Measure variety classes polycyclic aromatic hydrocarbon concentration carry out analysis sort out obtain mathematical model, so that computing module can be according to cooking area
The testing conditions of domain temperature and oil smoke size judge current variety classes polycyclic aromatic hydrocarbon concentration.
Computing module of the invention is lienar for computing module, NONLINEAR CALCULATION module, exponential type computing module, power type meter
Calculate module, logarithmic computing module, neural network computing module, machine learning computing module or deep learning computing module
One of which.
Image capture module acquires the case where oil smoke is generated in cooking process in real time, specially acquires corresponding region in real time
Picture simultaneously handles current kitchen fume concentration, and data are transmitted to computing module.
The processing method of image capture module are as follows:
Image capture module is handled based on the initial pictures that imaging device acquires, and initial pictures are gray scale
Figure, initial pictures collected are serialized, and the initial pictures of the initial pictures and previous frame that pass sequentially through rear frame are handled, and are obtained
To the current kitchen fume concentration at moment locating for each rear frame initial pictures
It is handled every time by the initial pictures of rear frame and the initial pictures of previous frame, when obtaining locating for rear frame initial pictures
The step process for the current kitchen fume concentration carved is as follows:
(1) initial pictures of rear frame and the initial pictures of previous frame frame difference is carried out to handle to obtain frame difference image；
(2) denoising is carried out to frame difference image in a manner of opening operation, obtains denoising image；
(3) edge detection is carried out to denoising image, marker motion region is as initial area-of-interest；
(4) gray average calculating is carried out to initial area-of-interest and segment smoothing degree calculates, it is equal gray scale will to be met simultaneously
The region of value and smoothness requirements is as next step area-of-interest, and other regions are as interference elimination；
(5) area-of-interest extracted to step (4) counts respectively, obtains oil smoke concentration according to statistical result and assigns
Value.
In step (1), to collected initial pictures carry out frame difference operate to obtain frame difference image be specifically:
Image capture module does a later frame image with previous frame image according to the sequencing of the initial pictures received
Difference obtains the highlighted frame difference image in dynamic area.
Wherein step (2) carries out denoising using opening operation to frame difference image, denoising image is obtained, especially by as follows
Mode carries out: first carrying out etching operation to frame difference image and disconnects narrow company to eliminate noise and the tiny spine in image
It connects；Expansive working is carried out to the image after corrosion again, restores the smoke characteristics in former frame difference image.
Wherein step (3) carries out edge detection to denoising image, and marker motion region is as initial area-of-interest, specifically
Be: the edge of detection frame difference image highlight regions is simultaneously marked, using the region marked as initial area-of-interest.
Wherein step (4) is specifically to carry out gray average, the calculating of segment smoothing degree to each initial area-of-interest, is obtained
Each initial corresponding gray average of area-of-interest and gray scale smoothness, will meet the gray average being calculated simultaneously and are less than
Gray threshold, gray scale smoothness be less than gray scale smoothness threshold initial area-of-interest be used as area-of-interest, will it is other at the beginning of
Beginning area-of-interest is determined as interference region.
Wherein step (5) be specifically, for the area-of-interest that step (4) extracts, by each region of interest area image
In the gray scales of all pixels carry out read group total and obtain the gray value of each region of interest area image, then by each region of interest
The gray value of area image is summed, and oil smoke concentration assignment is obtained.
The target area of imaging device acquisition indicates that any one frame initial pictures are the imaging of corresponding region S with region S.
Initial pictures are made of m*n pixel,
The gray value of the pixel of frame initial pictures A is indicated afterwards with matrix A H, AH={ ahi,j, ahi,jFrame initial graph after representative
As the i-th row, the corresponding gray value of jth column pixel in A, i is the row where pixel, and j is the column where pixel, 1≤i≤m, 1≤j
≤n；The subregion in frame initial pictures A where the i-th row, jth column pixel is AS afterwardsi,j。
The gray value of the pixel of previous frame initial pictures B indicates with matrix B H, BH={ bhi,j, bhi,jRepresent previous frame initial graph
As the i-th row, the corresponding gray value of jth column pixel in B, the subregion in previous frame initial pictures B where the i-th row, jth column pixel is
BSi,j。
The grey scale pixel value of frame difference image D indicates with matrix D H, DH={ dhi,j}={ | ahi,j-bhi,j|, dhi,jIt represents
I-th row, the corresponding gray value of jth column pixel in frame difference image D, the subregion in frame difference image D where the i-th row, jth column pixel
For DSi,j。
In frame difference image, | dhi,j|=0 region is in black；|dhi,j| ≠ 0 region is in be highlighted.
Etching operation wherein is carried out to frame difference image in step (2), is specifically comprised the following steps:
2-11 arbitrarily defines a convolution kernel θ；
Convolution kernel θ and frame difference image are carried out convolution by 2-12；When convolution kernel θ traverses frame difference image, convolution kernel institute is extracted
The pixel grey scale minimum value p of the convolution results and pixel C being overlapped with convolution kernel center in overlay area；
The gray scale of pixel C passes through Matrix C H={ ck,qIndicate, k, q are the row serial number and column serial number of pixel C,
Obtain the convolution results minimum value pixel matrix P obtained in convolution kernel θ traversal frame difference image process, minimum value
The gray scale of pixel matrix P passes through matrix PH={ pk,qIndicate；
The corresponding imparting pixel C of the gray scale of pixel matrix P is obtained corrosion image by 2-13；
Expansive working is carried out to corrosion image in step (2), is specifically comprised the following steps:
2-21 arbitrarily defines a convolution kernel β；
Convolution kernel β and corrosion image are carried out convolution by 2-22；When convolution kernel β traverses corrosion image, convolution kernel institute is extracted
The pixel grey scale maximum value o of the convolution results and pixel R being overlapped with convolution kernel center in overlay area；
The gray scale of pixel R passes through matrix RH={ rl,vIndicate, l, v are the row serial number and column serial number of pixel R,
Obtain the convolution results maximum value pixel matrix O obtained in convolution kernel β traversal corrosion image process, maximum value
The gray scale of pixel matrix O passes through matrix OH={ ol,vIndicate；
The corresponding imparting pixel R of the gray scale of maximum value pixel matrix O is obtained expanding image, obtained expansion by 2-13
Image is to denoise image.
Wherein step (3) carries out as follows:
3-1 defines a filter Y, and filter is t*t matrix, and t is odd number；
3-2 makes filter Y traversal denoising image, calculates filter and go where the central pixel point at each position
It makes an uproar the gray values of other pixels in the gray value and center pixel vertex neighborhood of image, and filter is calculated according to formula (I)
The edge detection value X of central pixel point at each positionz, z is label when filter Y traversal denoises image,
F, g is the matrix serial number of pixel, and 1≤f≤t, 1≤g≤t, e are pixel of the filter at each position
The gray value of the denoising image at place；α is weight coefficient, corresponding with filter location；
3-3, by central pixel point edge detection value X of the filter at each positionzWith center pixel vertex neighborhood its
The gray value of its pixel subtracts each other, and judges whether the absolute value of difference is greater than threshold value Δ；
Statistics is greater than the quantity of threshold value, if quantity is more thanDetermine the central pixel point of filter present position
The pixel position of corresponding denoising image is marginal point, and is marked；
3-4, complete denoising image of filter traversal, obtains the markd marginal point of institute, obtains preliminary area-of-interest.
T is 3.
It should be noted that the processing method of above-mentioned image capture module is only to propose one kind of processing method, it is right
The method of the image capture module output data of acquisition cooking zone is merely able to all in the processing method of other image capture modules
It can be applied to kitchen fume formula polycyclic aromatic hydrocarbon detection device of the invention, protection scope of the present invention should all be fallen into.
It should be noted that image capture module of the invention is to be examined using camera to cooking zone oil smoke size
It surveys, as long as can be realized above-mentioned function of the invention all can serve as image capture module of the invention.And calculating of the invention
Module is that the polycyclic aromatic hydrocarbon concentration of current cooking zone is calculated by temperature signal and oil smoke signal, which is to calculate
Device or the module for having computing function can be used as computing module of the invention, and the computing module for this type is that industry is raw
The common knowledge of computing module in production, those skilled in the art is it is to be understood that details are not described herein.
Temperature preferably detects kitchen tools temperature in cooking zone of the invention, or Air Temperature in detection cooking zone
Degree, oil smoke temperature or kitchen range temperature etc., specific embodiment according to the actual situation depending on.The present embodiment has in cooking zone
Detection temperature is kitchen tools temperature.
The kitchen fume formula polycyclic aromatic hydrocarbon detection device, is assemblied in kitchen fixed part.The polycyclic aromatic hydrocarbon detection device according to
The cooking zone temperature and oil smoke size of detection carry out that the current polycyclic aromatic hydrocarbon concentration of cooking zone is calculated.The polycyclic aromatic hydrocarbon
The temperature sensing module of detection device detects cooking zone temperature, and image capture module is to cooking zone oil smoke image analysis and real
When obtain generate oil smoke situation into that must acquire, then pass through computing module calculate current environment polycyclic aromatic hydrocarbon concentration.
Embodiment 2.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, other features are same as Example 1, the difference is that: meter
The calculation formula for calculating module is formula (I),
CPolycyclic aromatic hydrocarbon+ 475.1 formula (I) of+0.33 κ λ of+0.05 λ of=0.05 κ,
Wherein CPolycyclic aromatic hydrocarbonFor the multiring aromatic hydrocarbon gas total concentration in cooking zone, κ is the output data of temperature sensing module, λ
For the output data of image capture module.
When κ ∈ (0 DEG C, 200 DEG C), (0,300) λ ∈, C(2-3)=70%CPolycyclic aromatic hydrocarbon,C(4)=20%CPolycyclic aromatic hydrocarbon,C(5-6)=
10%CPolycyclic aromatic hydrocarbon.When κ ∈ (200 DEG C, 240 DEG C), (300,500) λ ∈, C(2-3)=60%CPolycyclic aromatic hydrocarbon,C(4)=25%CPolycyclic aromatic hydrocarbon,
C(5-6)=15%CPolycyclic aromatic hydrocarbon。
Wherein C(2-3)For the concentration of two ring polycyclic aromatic hydrocarbons and three ring polycyclic aromatic hydrocarbons, C(4)For the concentration of four ring polycyclic aromatic hydrocarbons,
C(5-6)For the concentration of five ring polycyclic aromatic hydrocarbons and six ring polycyclic aromatic hydrocarbons.
Such as when κ is 100 DEG C, when λ is 100, the data value of κ and λ is directly substituted into formula respectively, count to obtain CPolycyclic aromatic hydrocarbonFor
3785.1 and CPolycyclic aromatic hydrocarbonUnit be pg/m3, i.e., the concentration of the polycyclic aromatic hydrocarbon in current environment is 3785.1pg/m3。C(2-3)It is dense
Degree is 2649.57pg/m3, C(4)Concentration be 757.02pg/m3, C(5-6)Concentration be 378.51pg/m3。
The kitchen ventilator of the present embodiment can be calculated by the oil smoke size of detection cooking zone temperature and cooking zone
The polycyclic aromatic hydrocarbon concentration of current cooking zone is obtained, two ring polycyclic aromatic hydrocarbons, the polycyclic virtue of tricyclic in current environment can be calculated
The concentration of hydrocarbon, four ring polycyclic aromatic hydrocarbons, five ring polycyclic aromatic hydrocarbons and six ring polycyclic aromatic hydrocarbons.
Embodiment 3.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, other features are same as Example 1, the difference is that: meter
The calculation formula for calculating module is formula (II),
CPolycyclic aromatic hydrocarbon=0.05 κ0.98+0.05λ1.05+ 469.5 formula of+0.33 κ λ (II).
Wherein CPolycyclic aromatic hydrocarbonFor the multiring aromatic hydrocarbon gas total concentration in cooking zone, κ is the output data of temperature sensing module, λ
For the output data of image capture module.
When κ ∈ (0 DEG C, 200 DEG C), (0,300) λ ∈, C(2-3)=70%CPolycyclic aromatic hydrocarbon,C(4)=20%CPolycyclic aromatic hydrocarbon,C(5-6)=
10%CPolycyclic aromatic hydrocarbon。
When κ ∈ (200 DEG C, 240 DEG C), (300,500) λ ∈, C(2-3)=60%CPolycyclic aromatic hydrocarbon,C(4)=25%CPolycyclic aromatic hydrocarbon,
C(5-6)=15%CPolycyclic aromatic hydrocarbon。
Wherein C(2-3)For the concentration of two ring polycyclic aromatic hydrocarbons and three ring polycyclic aromatic hydrocarbons, C(4)For the concentration of four ring polycyclic aromatic hydrocarbons,
C(5-6)For the concentration of five ring polycyclic aromatic hydrocarbons and six ring polycyclic aromatic hydrocarbons.
Such as when κ is 100 DEG C, when λ is 100, the data value of κ and λ is directly substituted into formula respectively, count to obtain CPolycyclic aromatic hydrocarbonFor
3780.35 and CPolycyclic aromatic hydrocarbonUnit be pg/m3, i.e., the concentration of the polycyclic aromatic hydrocarbon in current environment is 3780.35pg/m3。C(2-3)'s
Concentration is 2646.245pg/m3, C(4)Concentration be 756.07pg/m3, C(5-6)Concentration be 378.035pg/m3。
The kitchen ventilator of the present embodiment can be calculated by the oil smoke size of detection cooking zone temperature and cooking zone
The polycyclic aromatic hydrocarbon concentration of current cooking zone is obtained, two ring polycyclic aromatic hydrocarbons, the polycyclic virtue of tricyclic in current environment can be calculated
The concentration of hydrocarbon, four ring polycyclic aromatic hydrocarbons, five ring polycyclic aromatic hydrocarbons and six ring polycyclic aromatic hydrocarbons.
Embodiment 4.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, other features are identical as embodiment 2 or embodiment 3, different
Place is: computing module of the invention is the computing module that Environmental Health grade classification is carried out according to polycyclic aromatic hydrocarbon concentration.
The present embodiment is that be averaged limiting concentration and the polycyclic aromatic hydrocarbon concentrations versus of benzo [a] pyrene of national regulations carries out environment etc.
Grade divides.
Work as CPolycyclic aromatic hydrocarbon< CBenzo [a] pyreneWhen, it is determined as Health Category, works as CPolycyclic aromatic hydrocarbon≥CBenzo [a] pyreneWhen, when judgement, then it is determined as not
Health Category.
Wherein CBenzo [a] pyreneIt is averaged limiting concentration, and C for benzo [a] pyrene of national regulationsBenzo [a] pyrene=1ng/m3。
Compared with embodiment 2 or 3, the present embodiment carries out Environmental Health grade classification, Neng Gougeng according to polycyclic aromatic hydrocarbon concentration
Add the air quality for intuitively going to judge current cooking environments.
Embodiment 5.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, other features are same as Example 4, the difference is that: it is more
Benzo [a] pyrene of the cycloaromatics concentration and national regulations limiting concentration that is averaged is divided by and carries out Environmental Health grade classification, such as formula (III)
It is shown:
As 0≤ε≤0.5, then it is determined as Health Category, as 0.5 < ε≤1, is then determined as good level, as ε > 1
When, then it is determined as unhealthy grade.
Compared with embodiment 2 or 3, the present embodiment carries out Environmental Health grade classification, Neng Gougeng according to polycyclic aromatic hydrocarbon concentration
Add the air quality for intuitively going to judge current cooking environments.
Embodiment 6.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, other features are identical as embodiment 4 or embodiment 5, different
Place is: it is the more of result progress after being weighted with polycyclic aromatic hydrocarbon concentration and equivalent virulence factor that polycyclic aromatic hydrocarbon environmental rating, which divides,
Cycloaromatics environmental rating divides.
By formula (IV) count polycyclic aromatic hydrocarbon total yield toxic concentration:
Wherein BEQ is the total yield toxic concentration of polycyclic aromatic hydrocarbon, and μ is the label of polycyclic aromatic hydrocarbon type, 1≤μ≤ξ and μ and ξ
For natural number, beqμFor the equivalent toxic concentration of μ kind polycyclic aromatic hydrocarbon, beqμIt is counted by formula (V),
beqμ=Cμ*TEFμFormula (V),
CμFor the concentration of μ kind polycyclic aromatic hydrocarbon, TEFμFor the corresponding equivalent virulence factor of μ kind polycyclic aromatic hydrocarbon.It is different polycyclic
The equivalent virulence factor of aromatic hydrocarbons is as shown in table 1:
Table 1 is the equivalent virulence factor of various polycyclic aromatic hydrocarbons
Compared with embodiment 4 or embodiment 5, this embodiment introduces the equivalent virulence factor of different polycyclic aromatic hydrocarbons, because
It is different for the toxicity for different polycyclic aromatic hydrocarbons, thus harm to the human body is also different.
Embodiment 7.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, other features are same as Example 6, the difference is that: this
Embodiment be polycyclic aromatic hydrocarbon total yield toxic concentration and national regulations benzo [a] pyrene be averaged limiting concentration comparison progress environment
Grade classification；
As BEQ < CBenzo [a] pyreneWhen, when, then it is determined as Health Category, as BEQ >=CBenzo [a] pyreneWhen, when, then it is determined as unhealthy
Grade.
Compared with Example 4, this embodiment introduces the equivalent virulence factors of different polycyclic aromatic hydrocarbons, because for different
The toxicity of polycyclic aromatic hydrocarbon is different, thus harm to the human body is also different.
Embodiment 8.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, other features are same as Example 6, the difference is that: it is more
The total yield toxic concentration of cycloaromatics and benzo [a] pyrene of national regulations be averaged limiting concentration be divided by carry out Environmental Health grade draw
Point, as shown in formula (VI):
As 0≤δ≤0.5, then it is determined as Health Category, as 0 < δ≤1, is then determined as good level, as δ > 1,
Then it is determined as unhealthy grade.
Compared with Example 5, this embodiment introduces the equivalent virulence factors of different polycyclic aromatic hydrocarbons, because for different
The toxicity of polycyclic aromatic hydrocarbon is different, thus harm to the human body is also different.
Embodiment 9.
A kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, as shown in Fig. 2, other features are same as Example 2, difference
Be in: polycyclic aromatic hydrocarbon detection device is additionally provided with blast velocity control module, and blast velocity control module is electrically connected with computing module, wind speed
Control module is electrically connected with external oil machine.Blast velocity control module controls external oil machine according to the environmental rating that computing module is sent
Velocity regulator carries out wind speed adjusting.
Polycyclic aromatic hydrocarbon detection device is additionally provided with cue module, and cue module is electrically connected with computing module.Cue module root
The prompt of current environment grade is carried out to user according to the environmental rating that computing module is sent.
Polycyclic aromatic hydrocarbon detection device is additionally provided with firepower control module, and firepower control module is electrically connected with computing module, fire
Power control module is electrically connected with external stove.The environmental rating that firepower control module is sent according to computing module to external stove into
Row firepower is adjusted
Compared with Example 1, the polycyclic aromatic hydrocarbon detection device of the present embodiment can be to the concentration of the polycyclic aromatic hydrocarbon of current environment
Environmental Health grade classification is carried out, while the polycyclic aromatic hydrocarbon detection device also has blast velocity control module, cue module and firepower
Control module, current environment Health Category automatically adjust the wind speed of external kitchen ventilator and the firepower of external stove, make current environment
Polycyclic aromatic hydrocarbon concentration reduce, while call user's attention protect.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should be managed
Solution, can be with modifying or equivalently replacing the technical solution of the present invention, without departing from the essence and model of technical solution of the present invention
It encloses.
Claims (15)
1. a kind of kitchen fume formula polycyclic aromatic hydrocarbon detection device, it is characterised in that: it is assemblied in kitchen fixed part；
It is carried out that the current polycyclic aromatic hydrocarbon concentration of cooking zone is calculated according to the cooking zone temperature of detection and oil smoke size；
It is provided with temperature sensing module for detecting cooking zone temperature, for cooking zone oil smoke image analysis and real-time
It obtains generating the image capture module of oil smoke size and the computing module of the polycyclic aromatic hydrocarbon concentration for calculating current cooking zone,
Temperature sensing module and image capture module are electrically connected with computing module respectively.
2. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 1, it is characterised in that: the kitchen fixed part
For wall, hearth or kitchen electric equipment；
The temperature sensing module induction cook regional temperature obtains temperature signal and using obtained temperature signal as temperature
Output signal is transmitted to computing module, and image capture module acquisition cooking zone oil smoke image obtains oil smoke output signal and transmits
To computing module, computing module receives the oil smoke output of the temperature output signal and image capture module of temperature sensing module respectively
Then signal obtains the polycyclic aromatic hydrocarbon concentration of current cooking zone in real time to temperature output signal and the processing of oil smoke output signal.
3. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 2, it is characterised in that: the computing module is
It constructs to obtain the mathematical relationship about temperature and oil smoke size and polycyclic aromatic hydrocarbon concentration in pernicious gas in oil smoke with mathematical modeling
Computing module.
4. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 3, it is characterised in that: the computing module is
Lienar for computing module, NONLINEAR CALCULATION module, exponential type computing module, power type computing module, logarithmic computing module, class mind
Through network query function module, machine learning computing module or deep learning computing module.
5. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 3, it is characterised in that: the computing module
Calculation formula is formula (I),
CPolycyclic aromatic hydrocarbon+ 475.1 formula (I) of+0.33 κ λ of+0.05 λ of=0.05 κ,
Wherein CPolycyclic aromatic hydrocarbonFor the multiring aromatic hydrocarbon gas total concentration in cooking zone, κ is the output data of temperature sensing module, and λ is figure
As the output data of acquisition module.
6. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 3, it is characterised in that: the computing module
Calculation formula is formula (II),
CPolycyclic aromatic hydrocarbon=0.05 κ0.98+0.05λ1.05+ 469.5 formula of+0.33 κ λ (II),
Wherein CPolycyclic aromatic hydrocarbonFor the multiring aromatic hydrocarbon gas total concentration in cooking zone, κ is the output data of temperature sensing module, and λ is figure
As the output data of acquisition module.
7. according to kitchen fume formula polycyclic aromatic hydrocarbon detection device described in claim 5 or 6, it is characterised in that: the calculating
Module is the computing module that Environmental Health grade classification is carried out according to polycyclic aromatic hydrocarbon concentration.
8. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 7, which is characterized in that the benzo of national regulations
Be averaged limiting concentration and polycyclic aromatic hydrocarbon concentrations versus of [a] pyrene carries out environmental rating division；
Work as CPolycyclic aromatic hydrocarbon: < CBenzo [a] pyreneWhen, it is determined as Health Category, works as CPolycyclic aromatic hydrocarbon: >=CBenzo [a] pyreneWhen, it is determined as unhealthy grade；
Wherein CBenzo [a] pyreneIt is averaged limiting concentration, and C for benzo [a] pyrene of national regulationsBenzo [a] pyrene=1ng/m3。
9. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 7, which is characterized in that polycyclic aromatic hydrocarbon concentration with
Benzo [a] pyrene of the national regulations limiting concentration that is averaged is divided by and carries out Environmental Health grade classification, as shown in formula (III):
As 0≤ε≤0.5, then it is determined as Health Category, as 0.5 < ε≤1, is then determined as good level, as ε > 1, then
It is determined as unhealthy grade.
10. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 7, it is characterised in that: the polycyclic aromatic hydrocarbon
Environmental rating, which divides, to be drawn with the polycyclic aromatic hydrocarbon environmental rating that result carries out after polycyclic aromatic hydrocarbon concentration and the weighting of equivalent virulence factor
Point.
11. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 10, it is characterised in that: it is counted by formula (IV)
Obtain the total yield toxic concentration of polycyclic aromatic hydrocarbon:
Wherein BEQ is the total yield toxic concentration of polycyclic aromatic hydrocarbon, and μ is the label of polycyclic aromatic hydrocarbon type, and 1≤μ≤ξ and μ and ξ are certainly
So number, beqμFor the equivalent toxic concentration of μ kind polycyclic aromatic hydrocarbon, beqμIt is counted by formula (V),
beqμ=Cμ*TEFμFormula (V),
CμFor the concentration of the content of μ kind polycyclic aromatic hydrocarbon, TEFμFor the corresponding equivalent virulence factor of μ kind polycyclic aromatic hydrocarbon.
12. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 11, it is characterised in that: polycyclic aromatic hydrocarbon it is total
Benzo [a] pyrene of equivalent toxic concentration and national regulations be averaged limiting concentration comparison carry out environmental rating division；
As BEQ < CBenzo [a] pyreneWhen, it is determined as Health Category,
As BEQ >=CBenzo [a] pyreneWhen, judgement is then determined as unhealthy grade.
13. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 11, it is characterised in that: polycyclic aromatic hydrocarbon it is total
Benzo [a] pyrene of the equivalent toxic concentration and national regulations limiting concentration that is averaged is divided by and carries out Environmental Health grade classification, such as formula
(III):
As 0≤δ≤0.5, then it is determined as Health Category, as 0 < δ≤1, is then determined as good level, as δ > 1, then sentences
It is set to unhealthy grade.
14. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 13, it is characterised in that: it is additionally provided with wind speed
Control module, blast velocity control module are electrically connected with computing module, and blast velocity control module is electrically connected with external oil machine；
The blast velocity control module carries out wind according to the velocity regulator that the environmental rating that computing module is sent controls external oil machine
Velocity modulation section.
It is additionally provided with cue module, cue module is electrically connected with computing module；
The cue module carries out the prompt of current environment grade to user according to the environmental rating that computing module is sent.
15. kitchen fume formula polycyclic aromatic hydrocarbon detection device according to claim 14, it is characterised in that: it is additionally provided with firepower
Control module, firepower control module are electrically connected with computing module, and firepower control module is electrically connected with external stove；
The firepower control module carries out firepower adjusting to external stove according to the environmental rating that computing module is sent.
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