CN109882899A - A kind of kitchen ventilator controlled according to working environment - Google Patents
A kind of kitchen ventilator controlled according to working environment Download PDFInfo
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- CN109882899A CN109882899A CN201811630943.7A CN201811630943A CN109882899A CN 109882899 A CN109882899 A CN 109882899A CN 201811630943 A CN201811630943 A CN 201811630943A CN 109882899 A CN109882899 A CN 109882899A
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- aromatic hydrocarbon
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Abstract
A kind of kitchen ventilator controlled according to working environment, it is provided with and can adjust the smoke machine main body of operation according to working environment, the current polycyclic aromatic hydrocarbon concentration environment detection device of cooking zone, blower and the oil fume separator separated for soot particles is calculated according to temperature in the cooking zone of detection and to the oil smoke size of cooking zone, blower and oil fume separator are assemblied in smoke machine main body.The kitchen ventilator controlled according to working environment can the oil smoke size to cooking zone the current polycyclic aromatic hydrocarbon concentration of cooking zone is calculated, simultaneously according to temperature in oil smoke size, cooking zone and polycyclic aromatic hydrocarbon concentration automatic adjustment blower, oil-fume separating device to make oil smoke and pernicious gas detach kitchen rapidly, the kitchen ventilator can carry out linkage with external kitchen range can effectively reduce the generation of pernicious gas and oil smoke, greatly improve the health care of user.
Description
Technical field
The present invention relates to kitchen ventilator field, in particular to a kind of kitchen ventilator controlled according to working environment.
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, greatly limit oil
The intelligent development of smoke machine.
Therefore in view of the shortcomings of the prior art, providing a kind of kitchen ventilator controlled according to working environment to solve existing skill
Art deficiency is very necessary.
Summary of the invention
It provides and a kind of is controlled according to working environment it is an object of the invention to avoid in place of the deficiencies in the prior art
Kitchen ventilator.Temperature, oil smoke in cooking zone in cooking environments before the oil smoke function controlled according to working environment identifies
Size and polycyclic aromatic hydrocarbon concentration and adjust blower and oil fume separator.
Above-mentioned purpose of the invention is realized by following technical measures:
A kind of kitchen ventilator controlled according to working environment is provided, the cigarette that can adjust operation according to working environment is provided with
Owner's body, that cooking zone is calculated according to temperature in the cooking zone of detection and to the oil smoke size of cooking zone is current
Polycyclic aromatic hydrocarbon concentration environment detection device, blower and the oil fume separator for soot particles separation, blower and oil fume separator
It is assemblied in smoke machine main body.
Environmental detection set is electrically connected with smoke machine main body, blower and oil fume separator respectively.
Environmental detection set detects temperature and oil smoke size in cooking zone respectively and obtains temperature output signal, oil smoke output
Signal and the dense signal of polycyclic aromatic hydrocarbon are simultaneously sent to smoke machine main body, smoke machine main body receive temperature output signal, oil smoke output signal and
The dense signal of polycyclic aromatic hydrocarbon, smoke machine main body and by temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon send respectively to
Blower and oil fume separator, blower receive temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon and make corresponding
It adjusts, oil fume separator receives temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon and makes corresponding adjusting.
Preferably, the rotational velocity range of above-mentioned oil fume separator is 0~+∞.
Preferably, the rotation mode of above-mentioned oil fume separator is rotating forward mode, inversion mode or positive and negative alternate mode.
Preferably, the method for operation of above-mentioned oil fume separator is continuous operation or intermittent duty.
Preferably, the rotational velocity range of above-mentioned oil fume separator is 0~8000rpm.
Preferably, above-mentioned environmental detection set is provided with for detecting the temperature sensing module of temperature in cooking zone, using
In obtaining generating the image capture module of oil smoke size to the image analysis of cooking zone oil smoke and in real time and currently be cooked for calculating
Prepare food region polycyclic aromatic hydrocarbon concentration computing module, temperature sensing module and image capture module are electrically connected with computing module respectively
Connect, temperature sensing module, image capture module and computing module respectively with smoke machine main body.
Preferably, temperature obtains temperature signal and by obtained temperature in above-mentioned temperature sensing module induction cook region
Signal is transmitted to computing module and smoke machine main body as temperature output signal, and image capture module acquires cooking zone oil smoke image
It obtains oil smoke output signal and is transmitted to computing module and smoke machine main body, computing module receives the temperature of temperature sensing module respectively
Then the oil smoke output signal of output signal and image capture module is handled temperature output signal and oil smoke output signal real-time
Then the polycyclic aromatic hydrocarbon concentration for obtaining current cooking zone obtains polycyclic aromatic hydrocarbon concentration signal again, computing module is dense by polycyclic aromatic hydrocarbon
Degree signal is sent to smoke machine main body.
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, temperature obtains output data κ in above-mentioned temperature sensing module detection cooking zone, judges κ and temperature threshold
Value κ1Relationship, and 0≤κ1。
Preferably, above-mentioned temperature sensing module calculates the value of rate temperature change L, wherein L=d κ/d ω, when ω is unit
Between, and judge the relationship of L Yu rate temperature change threshold value Ls.
The temperature value of temperature standard threshold value A is κ1=150 DEG C and Ls=10 DEG C/min.
The temperature value of temperature standard threshold value B is κ1=200 DEG C.
Preferably, above-mentioned image capture module, which obtains generating oil smoke size to the image analysis of cooking zone oil smoke and in real time, obtains
To output data λ, λ and oil smoke threshold value λ are judged1Relationship, and 0≤λ1。
Preferably, above-mentioned image capture module calculates the value of oil smoke rate of change N, wherein N=d λ/d ω, when ω is unit
Between, and judge the relationship of N Yu oil smoke rate of change threshold value Ns.
The oil smoke numerical value of oil smoke level threshold value A is λ1=40 and Ns=1/s.
The oil smoke numerical value of oil smoke level threshold value B is λ1=140.
Preferably, above-mentioned computing module obtains current cooking area to temperature output signal and the processing of oil smoke output signal in real time
The polycyclic aromatic hydrocarbon concentration C in domainPolycyclic aromatic hydrocarbon, judge CPolycyclic aromatic hydrocarbonWith concentration threshold CPolycyclic aromatic hydrocarbon 1Relationship, and 0≤CPolycyclic aromatic hydrocarbon 1。
Preferably, above-mentioned computing module calculates the value of polycyclic aromatic hydrocarbon concentration rate of change M, wherein M=dCPolycyclic aromatic hydrocarbon/ d ω, ω
For the unit time, and judge the relationship of M Yu polycyclic aromatic hydrocarbon concentration rate of change threshold value Ms.
The polycyclic aromatic hydrocarbon numerical value of polycyclic aromatic hydrocarbon level threshold value A is CPolycyclic aromatic hydrocarbon 1=1000pg/m3And Ms=10pg/ (m3*s)。
The polycyclic aromatic hydrocarbon numerical value of polycyclic aromatic hydrocarbon level threshold value B is CPolycyclic aromatic hydrocarbon 1=1500pg/m3。
Preferably, above-mentioned smoke machine main body is provided with control module, control module respectively with temperature sensing module, Image Acquisition
Module, computing module, blower and oil fume separator electrical connection.
Control module receives the oil smoke output signal and meter of the temperature output signal of temperature sensing module, image capture module
Calculate module polycyclic aromatic hydrocarbon concentration signal and handle obtain control signal, control module send control signals to respectively blower and
Oil fume separator, blower receive the control signal of control module and do corresponding adjusting, and oil fume separator receives the control of control module
Signal processed simultaneously does corresponding adjusting.
Preferably, above-mentioned control module is to blower adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to blower and tunes up signal,
Increase blower gear；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to blower and tunes up signal, makes blower shelves
At least one of position increase；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value A, oil smoke numerical value is no more than oil smoke level threshold value A and protects
When holding the time more than or equal to χ, control module issues gear to blower and turns signal down, reduces blower gear.
Another preferred, above-mentioned control module is to blower adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to blower and tunes up signal,
Increase blower gear；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to blower and tunes up signal, makes blower shelves
At least one of position increase；
When polycyclic aromatic hydrocarbon numerical value be no more than polycyclic aromatic hydrocarbon level threshold value B, oil smoke numerical value be no more than oil smoke level threshold value B and
When retention time is more than or equal to χ, control module issues gear to blower and turns signal down, reduces blower gear.
Preferably, above-mentioned control module is to oil-fume separating device adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to oil-fume separating device
Signal is tuned up, oil-fume separating device gear is increased；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to oil-fume separating device and tunes up signal,
Make at least one of oil-fume separating device gear increase；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value B, oil smoke numerical value is no more than oil smoke level threshold value B and guarantor
When holding the time more than or equal to χ, control module issues gear to oil-fume separating device and turns signal down, makes oil-fume separating device shelves
Position reduces.
Another preferred, above-mentioned control module is to oil-fume separating device adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to oil-fume separating device
Signal is tuned up, oil-fume separating device gear is increased；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to oil-fume separating device and tunes up signal,
Make at least one of oil-fume separating device gear increase；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value A, oil smoke numerical value is no more than oil smoke level threshold value A and protects
When holding the time more than or equal to χ, control module issues gear to oil-fume separating device and turns signal down, makes oil-fume separating device shelves
Position reduces.
Preferably, above-mentioned control module is also connect with external kitchen range signal, and control module sends control signals to outside
Kitchen range electrical connection, external kitchen range receive the control signal of control module and do corresponding adjusting.
Preferably, above-mentioned signal be connected as wire signal connection, the wire signal be connected as RS232 signal connection,
The connection of RS485 signal, usb signal connection, the connection of GPIB signal or CAN signal connection；Or
The signal is connected as wireless signal connection, and the wireless signal is connected as WiFi signal connection, Bluetooth signal connects
It connects, the connection of NFC signal or ZIGBee signal connect.
Preferably, above-mentioned control module is to external kitchen range adjustable strategies,
When temperature value is more than temperature standard threshold value A, control module issues gear to external kitchen range and turns signal down, makes outer
Portion's kitchen range gear reduces；Or
When temperature value is more than temperature standard threshold value B, control module issues gear to external kitchen range and turns signal down, makes outer
Portion's kitchen range gear reduces；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to external kitchen range and turns signal down, makes outer
Portion's kitchen range gear reduces；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to external kitchen range and turns signal down, makes outer
Portion's kitchen range gear reduces；Or
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to external kitchen range and turns down
Signal reduces external kitchen range gear；Or
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to external kitchen range and turns down
Signal makes at least one of external kitchen range gear reduction.Preferably, above-mentioned control module to blower, oil-fume separating device and
The adjustable strategies of external kitchen range are,
When temperature value is more than at least one of temperature standard threshold value A or temperature standard threshold value B, and oil smoke numerical value is super
At least one of oil smoke level threshold value A or oil smoke level threshold value B are crossed, and polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon standard threshold
When at least one of value A or polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to external kitchen range and turns signal down, makes
External kitchen range gear reduces, and control module issues gear to blower and oil-fume separating device respectively and keeps signal, makes blower and oil
Cigarette separator keeps original gear；Or
It is more than that oil smoke level threshold value B, polycyclic aromatic hydrocarbon numerical value are super when oil smoke numerical value is more than oil smoke level threshold value A, oil smoke numerical value
It crosses polycyclic aromatic hydrocarbon level threshold value A or polycyclic aromatic hydrocarbon numerical value is more than at least one in polycyclic aromatic hydrocarbon level threshold value B, and temperature value
When no more than temperature standard threshold value A and temperature standard threshold value B, control module issues gear to blower and oil-fume separating device respectively
Signal is tuned up, blower and oil-fume separating device gear are increased, control module issues gear to external kitchen range and keeps signal, makes outer
Portion's kitchen range keep original gear.
A kind of kitchen ventilator controlled according to working environment of the invention, operation can be adjusted according to working environment by being provided with
Smoke machine main body, according to temperature in the cooking zone of detection and cooking zone be calculated to the oil smoke size of cooking zone work as
Preceding polycyclic aromatic hydrocarbon concentration environment detection device, blower and the oil fume separator for soot particles separation, blower and oil smoke point
Smoke machine main body is assemblied in from device.The kitchen ventilator controlled according to working environment can oil smoke size to cooking zone calculate
The current polycyclic aromatic hydrocarbon concentration of cooking zone is obtained, while dense according to temperature in oil smoke size, cooking zone and polycyclic aromatic hydrocarbon
Degree automatic adjustment blower, oil-fume separating device to making oil smoke and pernicious gas detach kitchen rapidly, the kitchen ventilator can with it is outer
Portion's kitchen range, which carry out linkage, can effectively reduce the generation of pernicious gas and oil smoke, greatly improve the health care of user.
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 ventilator controlled according to working environment of embodiment 1.
Fig. 2 is a kind of workflow schematic diagram of kitchen ventilator controlled according to working environment of embodiment 9.
Specific embodiment
Technical solution of the present invention is described further with the following Examples.
Embodiment 1.
A kind of kitchen ventilator controlled according to working environment is transported as shown in Figure 1, being provided with and can be adjusted according to working environment
Cooking zone is calculated according to temperature in the cooking zone of detection and to the oil smoke size of cooking zone in capable smoke machine main body
Current polycyclic aromatic hydrocarbon concentration environment detection device, blower and the oil fume separator for soot particles separation, blower and oil smoke
Separator is assemblied in smoke machine main body.Environmental detection set is electrically connected with smoke machine main body, blower and oil fume separator respectively.
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.
Environmental detection set detects temperature and oil smoke size in cooking zone respectively and obtains temperature output signal, oil smoke output
Signal and the dense signal of polycyclic aromatic hydrocarbon are simultaneously sent to smoke machine main body, smoke machine main body receive temperature output signal, oil smoke output signal and
The dense signal of polycyclic aromatic hydrocarbon, smoke machine main body and by temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon send respectively to
Blower and oil fume separator, blower receive temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon and make corresponding
It adjusts, oil fume separator receives temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon and makes corresponding adjusting.
The rotational velocity range of oil fume separator of the present invention is 0~+∞, the rotation of the specific oil fume separator of the present embodiment
Velocity interval is 0~8000rpm.It should be noted that the rotational velocity range of oil fume separator of the invention is can be 0~
1000rpm, 0~2000rpm, 0~10000rpm or specific arbitrary rotational velocity range, specific performance is according to reality
Depending on the situation of border.
The rotation mode of oil fume separator of the invention is any in rotating forward mode, inversion mode or positive and negative alternate mode
One kind, the specific rotation mode of the present embodiment are rotating forward mode.
The method of operation of oil fume separator of the invention is continuous operation or intermittent duty, the method for operation of the present embodiment
Continuous operation.
Environmental detection set is provided with for detecting the temperature sensing module of temperature in cooking zone, for cooking zone
Oil smoke image analysis simultaneously obtains generating the image capture module of oil smoke size and for calculating the polycyclic of current cooking zone in real time
The computing module of density of aromatic hydrocarbon, temperature sensing module and image capture module are electrically connected with computing module respectively, temperature sensing mould
Block, image capture module and computing module respectively with smoke machine main body.
Temperature obtains temperature signal and using obtained temperature signal as temperature in temperature sensing module induction cook region
Degree output signal is transmitted to computing module and smoke machine main body, and it is defeated that image capture module acquisition cooking zone oil smoke image obtains oil smoke
Signal and be transmitted to computing module and smoke machine main body out, computing module receive respectively temperature sensing module temperature output signal and
Then the oil smoke output signal of image capture module currently cooks temperature output signal and the processing of oil smoke output signal in real time
Prepare food region polycyclic aromatic hydrocarbon concentration then obtain polycyclic aromatic hydrocarbon concentration signal again, computing module sends polycyclic aromatic hydrocarbon concentration signal
To smoke machine main body.
Computing module of the invention is to construct to obtain about gas 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 body.Mathematical modeling is to collect different temperatures and oil smoke size by experiment
Etc. the mathematical relationship of pernicious gas polycyclic aromatic hydrocarbon concentration in factors and oil smoke.Sample detecting is carried out according to different experiment conditions to obtain
Analysis classification is carried out to variety classes polycyclic aromatic hydrocarbon concentration and obtains mathematical model, so that computing module can be according in cooking zone
The testing conditions of 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 pair of filter present position
The pixel position for the denoising image answered 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 the kitchen ventilator of the invention controlled according to working environment, 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 output signal and oil smoke output signal, the calculating mould
Block is that calculator or the module for having computing function can be used as computing module of the invention, for the computing module of this type
For the common knowledge of the computing module in industrial production, those skilled in the art is it is to be understood that details are not described herein.
The kitchen ventilator controlled according to working environment is provided with the smoke machine master that operation can be adjusted according to working environment
Current polycyclic of cooking zone is calculated according to temperature in the cooking zone of detection and to the oil smoke size of cooking zone in body
Density of aromatic hydrocarbon environmental detection set, blower and the oil fume separator for soot particles separation, blower and oil fume separator assembly
In smoke machine main body.Temperature in the temperature sensing module detection cooking zone of the kitchen ventilator, image capture module is to cooking zone oil
Cigarette image analysis simultaneously obtains generating oil smoke situation into that must acquire in real time, then calculates the polycyclic of current environment by computing module
The concentration of aromatic hydrocarbons.
Embodiment 2.
A kind of kitchen ventilator controlled according to working environment, other features are same as Example 1, the difference is that:
The calculation formula of 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.
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)=
15%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 counted by temperature in detection cooking zone and the oil smoke size of cooking zone
Calculation obtains the polycyclic aromatic hydrocarbon concentration of current cooking zone, and it is polycyclic can to calculate two ring polycyclic aromatic hydrocarbons in current environment, tricyclic
The concentration of aromatic hydrocarbons, four ring polycyclic aromatic hydrocarbons, five ring polycyclic aromatic hydrocarbons and six ring polycyclic aromatic hydrocarbons.
Embodiment 3.
A kind of kitchen ventilator controlled according to working environment, other features are same as Example 1, the difference is that:
The calculation formula of 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.
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 counted by temperature in detection cooking zone and the oil smoke size of cooking zone
Calculation obtains the polycyclic aromatic hydrocarbon concentration of current cooking zone, and it is polycyclic can to calculate two ring polycyclic aromatic hydrocarbons in current environment, tricyclic
The concentration of aromatic hydrocarbons, four ring polycyclic aromatic hydrocarbons, five ring polycyclic aromatic hydrocarbons and six ring polycyclic aromatic hydrocarbons.
Embodiment 4.
A kind of kitchen ventilator controlled according to working environment, other features are identical as embodiment 2 or embodiment 3, no
It is with place:
Temperature obtains Current Temperatures κ in temperature sensing module detection cooking zone, judges κ and temperature threshold κ1Relationship, and 0
≤κ1；
Temperature sensing module calculates the value of rate temperature change L, wherein L=d κ/d ω, and ω is the unit time, and judges L
With the relationship of rate temperature change threshold value Ls.
The temperature value of temperature standard threshold value A is κ1=150 DEG C and Ls=10 DEG C/min.
The temperature value of temperature standard threshold value B is κ1=200 DEG C.
Such as when the κ of temperature value is 160 DEG C, when L=11 DEG C/min, then the temperature value is more than temperature standard threshold value A,
But it is no more than temperature standard threshold value B.
When the κ of temperature value is 210 DEG C, when L=8 DEG C/min, then the temperature value is more than temperature standard threshold value B, but not
More than temperature standard threshold value A.
When the κ of temperature value is 160 DEG C, when L=8 DEG C/min, then the temperature value is no more than temperature standard threshold value A,
No more than temperature standard threshold value B.
Image capture module, which obtains generating oil smoke size to the image analysis of cooking zone oil smoke and in real time, obtains Image Acquisition
The output data λ of module judges λ and oil smoke threshold value λ1Relationship, and 0≤λ1。
Image capture module calculates the value of oil smoke rate of change N, wherein N=d λ/d ω, and ω is the unit time, and judges N
With the relationship of oil smoke rate of change threshold value Ns.
The oil smoke numerical value of oil smoke level threshold value A is λ1=40 and Ns=1/s.
The oil smoke numerical value of oil smoke level threshold value B is λ1=140.
Such as the λ of oil smoke numerical value is 41, N when being 1.1/s, which is more than oil smoke level threshold value A, but is no more than oil
Cigarette level threshold value B.
Such as the λ of oil smoke numerical value is 141, N when being 0.1/s, which is more than oil smoke level threshold value B, but is no more than
Oil smoke level threshold value A.
Such as the λ of oil smoke numerical value is 39, N when being 1.1/s, which is no more than oil smoke level threshold value A and oil smoke mark
Quasi- threshold value B.
Environmental detection set obtains the more of current cooking zone to temperature output signal and the processing of oil smoke output signal in real time
Cycloaromatics concentration CPolycyclic aromatic hydrocarbon, judge CPolycyclic aromatic hydrocarbonWith concentration threshold CPolycyclic aromatic hydrocarbon 1Relationship, and 0≤CPolycyclic aromatic hydrocarbon 1。
Polycyclic aromatic hydrocarbon detection module calculates the value of polycyclic aromatic hydrocarbon concentration rate of change M, wherein M=dCPolycyclic aromatic hydrocarbon/ d ω, ω are
Unit time, and judge the relationship of M Yu polycyclic aromatic hydrocarbon concentration rate of change threshold value Ms.
Polycyclic aromatic hydrocarbon detection module calculates the value of polycyclic aromatic hydrocarbon concentration rate of change M, wherein M=dCPolycyclic aromatic hydrocarbon/ d ω, ω are
Unit time, and judge the relationship of M Yu polycyclic aromatic hydrocarbon concentration rate of change threshold value Ms.
The polycyclic aromatic hydrocarbon numerical value of polycyclic aromatic hydrocarbon level threshold value A is CPolycyclic aromatic hydrocarbon 1=1000pg/m3And Ms=10pg/ (m3*s)。
The polycyclic aromatic hydrocarbon numerical value of polycyclic aromatic hydrocarbon level threshold value B is CPolycyclic aromatic hydrocarbon 1=1500pg/m3。
Such as the C of polycyclic aromatic hydrocarbon numerical valuePolycyclic aromatic hydrocarbonIt is 11pg/ (m for 1111, N3When * s), which is more than polycyclic
Aromatic hydrocarbons level threshold value A, but it is no more than polycyclic aromatic hydrocarbon level threshold value B.
Such as the C of polycyclic aromatic hydrocarbon numerical valuePolycyclic aromatic hydrocarbonIt is 9pg/ (m for 1511, N3When * s), which is more than polycyclic
Aromatic hydrocarbons level threshold value B, but it is no more than polycyclic aromatic hydrocarbon level threshold value A.
Such as the C of polycyclic aromatic hydrocarbon numerical valuePolycyclic aromatic hydrocarbonIt is 9pg/ (m for 1111, N3When * s), which is no more than more
Cycloaromatics level threshold value A is also no more than polycyclic aromatic hydrocarbon level threshold value B.
Smoke machine main body is provided with control module, control module respectively with temperature sensing module, image capture module, calculate mould
Block, blower and oil fume separator electrical connection.
Control module receives the oil smoke output signal and meter of the temperature output signal of temperature sensing module, image capture module
Calculate module polycyclic aromatic hydrocarbon concentration signal and handle obtain control signal, control module send control signals to respectively blower and
Oil fume separator, blower receive the control signal of control module and do corresponding adjusting, and oil fume separator receives the control of control module
Signal processed simultaneously does corresponding adjusting.
Compared with embodiment 2 or embodiment 3, embodiment adds temperature threshold, oil smoke threshold value, concentration thresholds, temperature
Rate of change, oil smoke rate of change and concentration rate of change are spent, can be control module to the tune of blower and oil-fume separating device
Section provides data and supports.
Embodiment 5.
A kind of kitchen ventilator controlled according to working environment, other features are same as Example 4, the difference is that:
Control module of the present invention is to blower adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to blower and tunes up signal,
Increase blower gear；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to blower and tunes up signal, makes blower shelves
At least one of position increase；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value A, oil smoke numerical value is no more than oil smoke level threshold value A and protects
When holding the time more than or equal to χ, control module issues gear to blower and turns signal down, reduces blower gear.
It should be noted that it can be more than polycyclic aromatic hydrocarbon standard according to being polycyclic aromatic hydrocarbon numerical value that the gear number of blower of the present invention, which increases,
Threshold value A or oil smoke numerical value are more than oil smoke level threshold value A, and being also possible to polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A
It is more than simultaneously oil smoke level threshold value A with oil smoke numerical value.It should be noted that χ can be 60 seconds, or any time, specifically
According to the actual situation depending on.
For example, working as CPolycyclic aromatic hydrocarbonFor 1510pg/m3, when λ is 138, control module issues gear to blower and tunes up signal, makes wind
Machine gear increases.After blower increases wind speed, oil smoke concentration and polycyclic aromatic hydrocarbon concentration can be gradually decreased.Work as CPolycyclic aromatic hydrocarbon≤1500pg/
m3With λ≤140 and when the retention time is more than or equal to 60 seconds, control module issues gear to blower and turns signal down, makes blower
Gear reduces, and reduces the load of equipment operation.
The kitchen ventilator of the present embodiment can be according to CPolycyclic aromatic hydrocarbonThe gear number that blower is adjusted with the data of λ, arranges pernicious gas in time
Out, the health of user is ensured.
Embodiment 6.
A kind of kitchen ventilator controlled according to working environment, other features are same as Example 4, the difference is that:
Control module of the present invention is to blower adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to blower and tunes up signal,
Increase blower gear；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to blower and tunes up signal, makes blower shelves
At least one of position increase；
When polycyclic aromatic hydrocarbon numerical value be no more than polycyclic aromatic hydrocarbon level threshold value B, oil smoke numerical value be no more than oil smoke level threshold value B and
When retention time is more than or equal to χ, control module issues gear to blower and turns signal down, reduces blower gear.
It should be noted that it can be more than polycyclic aromatic hydrocarbon standard according to being polycyclic aromatic hydrocarbon numerical value that the gear number of blower of the present invention, which increases,
Threshold value B or oil smoke numerical value are more than oil smoke level threshold value B, and being also possible to polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B
It is more than simultaneously oil smoke level threshold value B with oil smoke numerical value.It should be noted that χ can be 60 seconds, or any time, specifically
According to the actual situation depending on.
For example, working as CPolycyclic aromatic hydrocarbonFor 1010pg/m3And M is 11pg/ (m3* s), λ is 150 and when N is 0.8/s, control module pair
Blower issues gear and tunes up signal, increases blower gear.After blower increases wind speed, oil smoke concentration and polycyclic aromatic hydrocarbon concentration meeting
It gradually decreases.Work as CPolycyclic aromatic hydrocarbon≤1000、M≤10pg/(m3*s)pg/m3, λ≤140 and N≤1/s and retention time be greater than or wait
When 60 seconds, control module issues gear to blower and turns signal down, reduces blower gear, reduces the load of equipment operation.
For example, working as CPolycyclic aromatic hydrocarbonFor 910pg/m3And M is 11pg/ (m3* s), λ is 150 and when N is 1.2/s, and control module is to wind
Machine issues gear and tunes up signal, increases blower gear.After blower increases wind speed, oil smoke concentration and polycyclic aromatic hydrocarbon concentration can be by
Gradually reduce.Work as CPolycyclic aromatic hydrocarbon≤1000、M≤10pg/(m3*s)pg/m3, λ≤140 and N≤1/s and retention time be more than or equal to
At 60 seconds, control module issues gear to blower and turns signal down, reduces blower gear, reduces the load of equipment operation.
The kitchen ventilator of the present embodiment can be according to CPolycyclic aromatic hydrocarbonThe gear number that blower is adjusted with the data of λ, arranges pernicious gas in time
Out, the health of user is ensured.
Embodiment 7.
A kind of kitchen ventilator controlled according to working environment, other features are same as Example 4, the difference is that:
Control module of the invention is to oil-fume separating device adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to oil-fume separating device
Signal is tuned up, oil-fume separating device gear is increased；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to oil-fume separating device and tunes up signal,
Make at least one of oil-fume separating device gear increase；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value B, oil smoke numerical value is no more than oil smoke level threshold value B and guarantor
When holding the time more than or equal to χ, control module issues gear to oil-fume separating device and turns signal down, makes oil-fume separating device shelves
Position reduces.
It should be noted that oil-fume separating device of the present invention gear number increase can according to be polycyclic aromatic hydrocarbon numerical value be more than it is polycyclic
Aromatic hydrocarbons level threshold value B or oil smoke numerical value are more than oil smoke level threshold value B, are also possible to polycyclic aromatic hydrocarbon numerical value more than polycyclic aromatic hydrocarbon mark
Quasi- threshold value B and oil smoke numerical value are more than simultaneously oil smoke level threshold value B.It should be noted that χ can be 60 seconds, or when any
Between, specifically according to the actual situation depending on.
For example, working as CPolycyclic aromatic hydrocarbonFor 1510pg/m3And λ be 150 when, control module to oil-fume separating device issue gear tune up
Signal increases oil-fume separating device gear.After oil-fume separating device increases revolving speed, oil smoke can be rapidly separated, thus
Gradually decrease oil smoke concentration and polycyclic aromatic hydrocarbon concentration can.Work as CPolycyclic aromatic hydrocarbon≤1500pg/m3With λ≤140 and the retention time be greater than or
When person is equal to 60 seconds, control module issues gear to blower and turns signal down, reduces blower gear, reduces the negative of equipment operation
Lotus.
For example, working as CPolycyclic aromatic hydrocarbonFor 800pg/m3And λ be 150 when, control module to oil-fume separating device issue gear tune up letter
Number, increase oil-fume separating device gear.After oil-fume separating device increases revolving speed, oil smoke can be rapidly separated, to make
Oil smoke concentration and polycyclic aromatic hydrocarbon concentration can gradually decrease.Work as CPolycyclic aromatic hydrocarbon≤1500pg/m3With λ≤140 and the retention time be greater than or
When equal to 60 seconds, control module issues gear to blower and turns signal down, reduces blower gear, reduces the load of equipment operation.
The kitchen ventilator of the present embodiment can be according to CPolycyclic aromatic hydrocarbonThe gear number of oil-fume separating device is adjusted with the data of λ, oil smoke can
It rapidly separates, to make oil smoke concentration and polycyclic aromatic hydrocarbon concentration that can gradually decrease, ensures the health of user.
Embodiment 8.
A kind of kitchen ventilator controlled according to working environment, other features are same as Example 4, the difference is that:
Control module of the invention is to oil-fume separating device adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to oil-fume separating device
Signal is tuned up, oil-fume separating device gear is increased；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to oil-fume separating device and tunes up signal,
Make at least one of oil-fume separating device gear increase；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value A, oil smoke numerical value is no more than oil smoke level threshold value A and guarantor
When holding the time more than or equal to χ, control module issues gear to oil-fume separating device and turns signal down, makes oil-fume separating device shelves
Position reduces.
It should be noted that oil-fume separating device of the present invention gear number increase can according to be polycyclic aromatic hydrocarbon numerical value be more than it is polycyclic
Aromatic hydrocarbons level threshold value A or oil smoke numerical value are more than oil smoke level threshold value A, are also possible to polycyclic aromatic hydrocarbon numerical value more than polycyclic aromatic hydrocarbon mark
Quasi- threshold value A and oil smoke numerical value are more than simultaneously oil smoke level threshold value A.It should be noted that χ can be 60 seconds, or when any
Between, specifically according to the actual situation depending on.
For example, working as CPolycyclic aromatic hydrocarbonFor 1010pg/m3And M is 11pg/ (m3* s), 35 λ, when N is 2/s, control module is to oil smoke
Separator issues gear and tunes up signal, increases oil-fume separating device gear.After oil-fume separating device increases revolving speed, oil smoke
It can rapidly separate, to make oil smoke concentration and polycyclic aromatic hydrocarbon concentration that can gradually decrease.Work as CPolycyclic aromatic hydrocarbon≤1000pg/m3、M≤
10pg/(m3* s), λ≤40 and N≤1/s and retention time, control module issued gear to blower when being more than or equal to 60 seconds
It turns signal down, reduces blower gear, reduce the load of equipment operation.
For example, working as CPolycyclic aromatic hydrocarbonFor 910pg/m3And M is 9pg/ (m3* s), 43 λ, when N is 2/s, control module is to oil smoke point
Gear is issued from device and tunes up signal, increases oil-fume separating device gear.After oil-fume separating device increases revolving speed, oil smoke energy
It enough rapidly separates, to make oil smoke concentration and polycyclic aromatic hydrocarbon concentration that can gradually decrease.Work as CPolycyclic aromatic hydrocarbon≤1000pg/m3、M≤
10pg/(m3* s), λ≤40 and N≤1/s and retention time, control module issued gear to blower when being more than or equal to 60 seconds
It turns signal down, reduces blower gear, reduce the load of equipment operation.
The kitchen ventilator of the present embodiment can be according to CPolycyclic aromatic hydrocarbonThe gear number of oil-fume separating device is adjusted with the data of λ, oil smoke can
It rapidly separates, to make oil smoke concentration and polycyclic aromatic hydrocarbon concentration that can gradually decrease, ensures the health of user.
Embodiment 9.
A kind of kitchen ventilator controlled according to working environment, as shown in Fig. 2, other features are same as Example 4, it is different
Place is: control module is also connect with external kitchen range signal, and control module sends control signals to external kitchen range electrical connection,
External kitchen range receive the control signal of control module and do corresponding adjusting.
Signal connection of the invention can connect for wire signal, or wireless signal connection.The wired letter of the present invention
The connection of RS232 signal, the connection of RS485 signal, usb signal connection, the connection of GPIB signal or CAN signal connection number is connected as to appoint
It anticipates one kind.Wireless signal is connected as WiFi signal connection, Bluetooth signal connection, the connection of NFC signal or the connection of ZIGBee signal
Any one.Concrete signal connects depending on truth condition.The signal connection RS485 signal connection of the present embodiment.
Control module is to external kitchen range adjustable strategies,
When temperature value is more than temperature standard threshold value A, control module issues gear to external kitchen range and turns signal down, makes outer
Portion's kitchen range gear reduces；Or
When temperature value is more than temperature standard threshold value B, control module issues gear to external kitchen range and turns signal down, makes outer
Portion's kitchen range gear reduces；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to external kitchen range and turns signal down, makes outer
Portion's kitchen range gear reduces；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to external kitchen range and turns signal down, makes outer
Portion's kitchen range gear reduces；Or
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to external kitchen range and turns down
Signal reduces external kitchen range gear；Or
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to external kitchen range and turns down
Signal makes at least one of external kitchen range gear reduction.
It should be noted that it can be more than temperature standard threshold value according to being temperature value that the gear number of the external kitchen range of the present invention, which reduces,
A, temperature value are more than temperature standard threshold value B, and oil smoke numerical value is more than oil smoke level threshold value A, and oil smoke numerical value is more than oil smoke standard threshold
Value B, polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A or polycyclic aromatic hydrocarbon numerical value is more than in polycyclic aromatic hydrocarbon level threshold value B
Any one, be also possible to two kinds of above situation or more than combination.
For example, working as CPolycyclic aromatic hydrocarbonFor 1501pg/m3When, control module issues gear to external kitchen range and turns signal down, makes external stove
Tool burns down.After external kitchen range burn down, the temperature of kitchen tools can decline, to make oil smoke concentration, and then polycyclic aromatic hydrocarbon
Concentration can also gradually decrease.
For example, working as CPolycyclic aromatic hydrocarbonFor 1010pg/m3And M is 11pg/ (m3When * s), control module issues gear tune to external kitchen range
Small signal makes external kitchen range burn down.After external kitchen range burn down, the temperature of kitchen tools can decline, to keep oil smoke dense
Degree, and then polycyclic aromatic hydrocarbon concentration can also gradually decrease.
For example, control module issues gear to external kitchen range and turns signal down when κ is 160 DEG C and L is 11 DEG C/min, make
External kitchen range burn down.After external kitchen range burn down, the temperature of kitchen tools can decline, thus make oil smoke concentration, Jin Erduo
Cycloaromatics concentration can also gradually decrease.
For example, control module issues gear to external kitchen range and turns signal down when κ is 220 DEG C, subtract external kitchen range firepower
It is weak.After external kitchen range burn down, the temperature of kitchen tools can decline, to make oil smoke concentration, and then polycyclic aromatic hydrocarbon concentration also can
It gradually decreases.
For example, control module issues gear to external kitchen range and turns signal down when λ is 41 and N is 2/s, make external kitchen range
It burns down.After external kitchen range burn down, the temperature of kitchen tools can decline, to make oil smoke concentration, and then polycyclic aromatic hydrocarbon is dense
Degree can also gradually decrease.
For example, control module issues gear to external kitchen range and turns signal down when λ is 150, subtract external kitchen range firepower
It is weak.After external kitchen range burn down, the temperature of kitchen tools can decline, to make oil smoke concentration, and then polycyclic aromatic hydrocarbon concentration also can
It gradually decreases.
The kitchen ventilator of the present embodiment can adjust external kitchen range according to oil smoke numerical value, polycyclic aromatic hydrocarbon numerical value and temperature value
Firepower reduces oil smoke concentration and polycyclic aromatic hydrocarbon concentration in time, ensures the health of user.
Embodiment 10.
A kind of kitchen ventilator controlled according to working environment, other features are same as Example 9, the difference is that:
Control module is to the adjustable strategies of blower, oil-fume separating device and external kitchen range,
When temperature value is more than at least one of temperature standard threshold value A or temperature standard threshold value B, and oil smoke numerical value is super
At least one of oil smoke level threshold value A or oil smoke level threshold value B are crossed, and polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon standard threshold
When at least one of value A or polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to external kitchen range and turns signal down, makes
External kitchen range gear reduces, and control module issues gear to blower and oil-fume separating device respectively and keeps signal, makes blower and oil
Cigarette separator keeps original gear.
Or when oil smoke numerical value be more than oil smoke level threshold value A, oil smoke numerical value be more than in oil smoke level threshold value B, polycyclic aromatic hydrocarbon
Numerical value is more than polycyclic aromatic hydrocarbon level threshold value A or polycyclic aromatic hydrocarbon numerical value is more than at least one in polycyclic aromatic hydrocarbon level threshold value B, and temperature
When degree value is no more than temperature standard threshold value A and temperature standard threshold value B, control module sends out blower and oil-fume separating device respectively
Gear tunes up signal out, increases blower and oil-fume separating device gear, and control module issues gear to external kitchen range and keeps letter
Number, so that external kitchen range is kept original gear.
For example, when κ is 210 DEG C, λ 150, CPolycyclic aromatic hydrocarbonFor 1510pg/m3When, control module issues gear to external kitchen range
It turns signal down, reduces external kitchen range gear, control module issues gear to blower and oil-fume separating device respectively and keeps signal,
Blower and oil-fume separating device is set to keep original gear.
For example, working as, κ is 160 DEG C and L is 11 DEG C/min, λ 160, CPolycyclic aromatic hydrocarbonFor 1010pg/m3And M is 12pg/ (m3*s)
When, control module issues gear to external kitchen range and turns signal down, reduces external kitchen range gear, control module is to blower and oil smoke
Separator issues gear respectively and keeps signal, and blower and oil-fume separating device is made to keep original gear.
For example, working as, κ is 160 DEG C and L is 11 DEG C/min, and λ is 50 and N is 3/s, CPolycyclic aromatic hydrocarbonFor 1600pg/m3When, control mould
Block issues gear to external kitchen range and turns signal down, reduces external kitchen range gear, control module is to blower and oil-fume separating device
Gear is issued respectively and keeps signal, and blower and oil-fume separating device is made to keep original gear.
For example, when λ is 150, CPolycyclic aromatic hydrocarbonFor 1510pg/m3, and κ is 190 DEG C and when L is 9 DEG C/min, control module is to wind
Machine and oil-fume separating device issue gear respectively and tune up signal, increase blower and oil-fume separating device gear, control module pair
External kitchen range issue gear and keep signal, and external kitchen range is made to keep original gear.
For example, when λ is 50, N 3/s, CPolycyclic aromatic hydrocarbonFor 910pg/m3, and κ is 160 DEG C and when L is 9 DEG C/min, control module
Gear is issued to blower and oil-fume separating device respectively and tunes up signal, increases blower and oil-fume separating device gear, controls mould
Block issues gear to external kitchen range and keeps signal, and external kitchen range is made to keep original gear.
The kitchen ventilator of the present embodiment can be according to κ, λ and CPolycyclic aromatic hydrocarbonData adjust blower, oil-fume separating device and external stove
Tool, is effectively reduced oil smoke concentration and polycyclic aromatic hydrocarbon concentration, ensures the health of user.
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 spirit and scope of technical solution of the present invention.
Claims (20)
1. a kind of kitchen ventilator controlled according to working environment, it is characterised in that: it is provided with to be adjusted according to working environment and transport
Cooking zone is calculated according to temperature in the cooking zone of detection and to the oil smoke size of cooking zone in capable smoke machine main body
Current polycyclic aromatic hydrocarbon concentration environment detection device, blower and the oil fume separator for soot particles separation, blower and oil smoke
Separator is assemblied in smoke machine main body, and environmental detection set is electrically connected with smoke machine main body, blower and oil fume separator respectively；
Environmental detection set detects temperature and oil smoke size in cooking zone respectively and obtains temperature output signal, oil smoke output signal
With the dense signal of polycyclic aromatic hydrocarbon and be sent to smoke machine main body, smoke machine main body receives temperature output signal, oil smoke output signal and polycyclic
The dense signal of aromatic hydrocarbons, smoke machine main body are simultaneously sent temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon respectively to blower
And oil fume separator, blower receive temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon and make corresponding adjusting,
Oil fume separator receives temperature output signal, oil smoke output signal and the dense signal of polycyclic aromatic hydrocarbon and makes corresponding adjusting.
2. the kitchen ventilator according to claim 1 controlled according to working environment, it is characterised in that: the oil smoke separation
The rotational velocity range of device is 0~+∞；
The rotation mode of the oil fume separator is rotating forward mode, inversion mode or positive and negative alternate mode；
The method of operation of the oil fume separator is continuous operation or intermittent duty.
3. the kitchen ventilator according to claim 2 controlled according to working environment, it is characterised in that: the oil smoke separation
The rotational velocity range of device is 0~8000rpm.
4. the kitchen ventilator according to claim 3 controlled according to working environment, it is characterised in that: the environment measuring
Device is provided with for detecting the temperature sensing module of temperature in cooking zone, for cooking zone oil smoke image analysis and real
When obtain generate oil smoke size image capture module and the polycyclic aromatic hydrocarbon concentration for calculating current cooking zone calculating mould
Block, temperature sensing module and image capture module are electrically connected with computing module respectively, temperature sensing module, image capture module and
Computing module respectively with smoke machine main body；
Temperature obtains temperature signal and using obtained temperature signal as temperature in temperature sensing module induction cook region
Degree output signal is transmitted to computing module and smoke machine main body, and it is defeated that image capture module acquisition cooking zone oil smoke image obtains oil smoke
Signal and be transmitted to computing module and smoke machine main body out, computing module receive respectively temperature sensing module temperature output signal and
Then the oil smoke output signal of image capture module currently cooks temperature output signal and the processing of oil smoke output signal in real time
Prepare food region polycyclic aromatic hydrocarbon concentration then obtain polycyclic aromatic hydrocarbon concentration signal again, computing module sends polycyclic aromatic hydrocarbon concentration signal
To smoke machine main body.
5. the kitchen ventilator according to claim 4 controlled according to working environment, it is characterised in that: the computing module
To construct to obtain about the mathematics of polycyclic aromatic hydrocarbon concentration closes in pernicious gas in temperature and oil smoke size and oil smoke with mathematical modeling
The computing module of system.
6. the kitchen ventilator according to claim 4 controlled according to working environment, it is characterised in that: the computing module
For lienar for computing module, NONLINEAR CALCULATION module, exponential type computing module, power type computing module, logarithmic computing module, class
Neural computing module, machine learning computing module or deep learning computing module.
7. the kitchen ventilator according to claim 4 controlled according to working environment, it is characterised in that: the computing module
Calculation formula be 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.
8. the kitchen ventilator according to claim 4 controlled according to working environment, it is characterised in that: the computing module
Calculation formula be 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.
9. the kitchen ventilator according to claim 6 or 7 controlled according to working environment, it is characterised in that: the temperature
Temperature obtains output data κ in sensing module detection cooking zone, judges κ and temperature threshold κ1Relationship, and 0≤κ1；
The temperature sensing module calculates the value of rate temperature change L, wherein L=d κ/d ω, and ω is the unit time, and judges L
With the relationship of rate temperature change threshold value Ls；
The temperature value of temperature standard threshold value A is κ1=150 DEG C and Ls=10 DEG C/min；
The temperature value of temperature standard threshold value B is κ1=200 DEG C.
10. the kitchen ventilator according to claim 9 controlled according to working environment, it is characterised in that: described image is adopted
Collect module to the image analysis of cooking zone oil smoke and obtain generation oil smoke size in real time and obtain output data λ, judges λ and oil smoke threshold
Value λ1Relationship, and 0≤λ1；
Described image acquisition module calculates the value of oil smoke rate of change N, wherein N=d λ/d ω, and ω is the unit time, and judges N
With the relationship of oil smoke rate of change threshold value Ns；
The oil smoke numerical value of oil smoke level threshold value A is λ1=40 and Ns=1/s；
The oil smoke numerical value of oil smoke level threshold value B is λ1=140.
11. the kitchen ventilator according to claim 10 controlled according to working environment, it is characterised in that: the calculating mould
Block obtains the polycyclic aromatic hydrocarbon concentration C of current cooking zone to temperature output signal and the processing of oil smoke output signal in real timePolycyclic aromatic hydrocarbon, sentence
Disconnected CPolycyclic aromatic hydrocarbonWith concentration threshold CPolycyclic aromatic hydrocarbon 1Relationship, and 0≤CPolycyclic aromatic hydrocarbon 1；
The computing module calculates the value of polycyclic aromatic hydrocarbon concentration rate of change M, wherein M=dCPolycyclic aromatic hydrocarbon/ d ω, ω are the unit time,
And judge the relationship of M Yu polycyclic aromatic hydrocarbon concentration rate of change threshold value Ms；
The polycyclic aromatic hydrocarbon numerical value of polycyclic aromatic hydrocarbon level threshold value A is CPolycyclic aromatic hydrocarbon 1=1000pg/m3And Ms=10pg/ (m3*s)；
The polycyclic aromatic hydrocarbon numerical value of polycyclic aromatic hydrocarbon level threshold value B is CPolycyclic aromatic hydrocarbon 1=1500pg/m3。
12. the kitchen ventilator according to claim 11 controlled according to working environment, it is characterised in that: the smoke machine master
Body is provided with control module, control module respectively with temperature sensing module, image capture module, computing module, blower and oil smoke
Separator electrical connection；
Control module receives the temperature output signal of temperature sensing module, the oil smoke output signal of image capture module and calculating mould
The polycyclic aromatic hydrocarbon concentration signal of block simultaneously handles and obtains control signal, and control module sends control signals to blower and oil smoke respectively
Separator, blower receive the control signal of control module and do corresponding adjusting, and oil fume separator receives the control letter of control module
Number and do corresponding adjusting.
13. the kitchen ventilator according to claim 12 controlled according to working environment, it is characterised in that: the control mould
Block is to blower adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to blower and tunes up signal, makes wind
Machine gear increases；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to blower and tunes up signal, increases blower gear
It is at least one of big；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value A, oil smoke numerical value is no more than oil smoke level threshold value A and keeps
Between be more than or equal to χ when, control module to blower issue gear turn signal down, make blower gear reduce.
14. the kitchen ventilator according to claim 12 controlled according to working environment, it is characterised in that: the control mould
Block is to blower adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to blower and tunes up signal, makes wind
Machine gear increases；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to blower and tunes up signal, increases blower gear
It is at least one of big；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value B, oil smoke numerical value is no more than oil smoke level threshold value B and keeps
When time is more than or equal to χ, control module issues gear to blower and turns signal down, reduces blower gear.
15. the kitchen ventilator according to claim 12 controlled according to working environment, it is characterised in that: the control mould
Block is to oil-fume separating device adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to oil-fume separating device and tunes up
Signal increases oil-fume separating device gear；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to oil-fume separating device and tunes up signal, makes oil
At least one of cigarette separator gear increase；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value B, oil smoke numerical value is no more than oil smoke level threshold value B and keeps
Between be more than or equal to χ when, control module to oil-fume separating device issue gear turn signal down, subtract oil-fume separating device gear
It is small.
16. the kitchen ventilator according to claim 12 controlled according to working environment, it is characterised in that: the control mould
Block is to oil-fume separating device adjustable strategies,
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to oil-fume separating device and tunes up
Signal increases oil-fume separating device gear；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to oil-fume separating device and tunes up signal, makes oil
At least one of cigarette separator gear increase；
When polycyclic aromatic hydrocarbon numerical value is no more than polycyclic aromatic hydrocarbon level threshold value A, oil smoke numerical value is no more than oil smoke level threshold value A and keeps
Between be more than or equal to χ when, control module to oil-fume separating device issue gear turn signal down, subtract oil-fume separating device gear
It is small.
17. the kitchen ventilator according to claim 12 controlled according to working environment, it is characterised in that: the control mould
Block is also connect with external kitchen range signal, and control module sends control signals to external kitchen range electrical connection, and external kitchen range receive control
The control signal of molding block simultaneously does corresponding adjusting.
18. the kitchen ventilator according to claim 17 controlled according to working environment, it is characterised in that: the signal connects
It is connected in wire signal connection, the wire signal is connected as the connection of RS232 signal, RS485 signal connects, usb signal connects,
The connection of GPIB signal or CAN signal connection；Or
The signal is connected as wireless signal connection, the wireless signal is connected as WiFi signal connection, Bluetooth signal connects,
The connection of NFC signal or the connection of ZIGBee signal.
19. the kitchen ventilator according to claim 18 controlled according to working environment, it is characterised in that: the control mould
Block is to external kitchen range adjustable strategies,
When temperature value is more than temperature standard threshold value A, control module issues gear to external kitchen range and turns signal down, makes external stove
Have gear to reduce；Or
When temperature value is more than temperature standard threshold value B, control module issues gear to external kitchen range and turns signal down, makes external stove
Have gear to reduce；Or
When oil smoke numerical value is more than oil smoke level threshold value A, control module issues gear to external kitchen range and turns signal down, makes external stove
Have gear to reduce；Or
When oil smoke numerical value is more than oil smoke level threshold value B, control module issues gear to external kitchen range and turns signal down, makes external stove
Have gear to reduce；Or
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A, control module issues gear to external kitchen range and turns signal down,
Reduce external kitchen range gear；Or
When polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to external kitchen range and turns signal down,
Make at least one of external kitchen range gear reduction.
20. the kitchen ventilator according to claim 18 controlled according to working environment, it is characterised in that: the control mould
Block is to the adjustable strategies of blower, oil-fume separating device and external kitchen range,
When temperature value be more than at least one of temperature standard threshold value A or temperature standard threshold value B, and oil smoke numerical value be more than oil
At least one of the quasi- threshold value A of cigarette-brand or oil smoke level threshold value B, and polycyclic aromatic hydrocarbon numerical value is more than polycyclic aromatic hydrocarbon level threshold value A
Or when at least one of polycyclic aromatic hydrocarbon level threshold value B, control module issues gear to external kitchen range and turns signal down, makes outside
Kitchen range gear reduces, and control module issues gear to blower and oil-fume separating device respectively and keeps signal, makes blower and oil smoke point
Original gear is kept from device；Or
It is more than oil smoke level threshold value B, polycyclic aromatic hydrocarbon numerical value is more than more when oil smoke numerical value is more than oil smoke level threshold value A, oil smoke numerical value
Cycloaromatics level threshold value A or polycyclic aromatic hydrocarbon numerical value are more than at least one in polycyclic aromatic hydrocarbon level threshold value B, and temperature value does not surpass
When excess temperature level threshold value A and temperature standard threshold value B, control module issues gear to blower and oil-fume separating device respectively and tunes up
Signal increases blower and oil-fume separating device gear, and control module issues gear to external kitchen range and keeps signal, makes external stove
Tool keeps original gear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811630943.7A CN109882899B (en) | 2018-12-29 | 2018-12-29 | Range hood controlled according to working environment |
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| CN201811630943.7A CN109882899B (en) | 2018-12-29 | 2018-12-29 | Range hood controlled according to working environment |
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| CN109882899B CN109882899B (en) | 2020-08-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111609447A (en) * | 2020-06-01 | 2020-09-01 | 合肥惠科达信息科技有限责任公司 | Kitchen utensils and appliances intelligence control system based on big data |
| CN112762490A (en) * | 2021-01-22 | 2021-05-07 | 合肥瑞纳通软件技术开发有限公司 | Range hood with double air inlets and air quantity control method thereof |
| CN116578008A (en) * | 2023-06-06 | 2023-08-11 | 浙江汇驰厨房设备工程有限公司 | Control system and method for kitchen range hood |
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| CN109882899B (en) | 2020-08-14 |
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