CN109654558B - Range hood linked with air purification device and linkage selection control method - Google Patents
Range hood linked with air purification device and linkage selection control method Download PDFInfo
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- CN109654558B CN109654558B CN201811629623.XA CN201811629623A CN109654558B CN 109654558 B CN109654558 B CN 109654558B CN 201811629623 A CN201811629623 A CN 201811629623A CN 109654558 B CN109654558 B CN 109654558B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
Abstract
A range hood linked with an air purification device is provided with a range hood main body, a polycyclic aromatic hydrocarbon detection device and a linkage control device, wherein the polycyclic aromatic hydrocarbon detection device is used for calculating the current polycyclic aromatic hydrocarbon concentration of a cooking area and obtaining an environment health grade signal according to the detected temperature in the cooking area and the oil smoke size of the cooking area, the linkage control device is in signal connection with an external air purification device and controls the external air purification device, and the polycyclic aromatic hydrocarbon detection device is respectively and electrically connected with the linkage control device and the range hood main body. This lampblack absorber can detect the polycyclic aromatic hydrocarbon concentration of current culinary art region and can link with outside air purification device to make the air that contains polycyclic aromatic hydrocarbon obtain in time purification treatment, ensure user's health. A linkage selection control method carries out linkage selection on a range hood and an air purification device through three steps, and the air purification device with the maximum optimal grade value is screened out, so that the optimal air purification effect is achieved.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a range hood linked with an air purification device and a linkage selection control method.
Background
The oil smoke gas comprises polycyclic aromatic hydrocarbon substances, and a certain part of the polycyclic aromatic hydrocarbon substances have carcinogenicity, such as benzo [ α ] pyrene.
Therefore, aiming at the defects of the prior art, the range hood linked with the air purification device and the linkage selection control method are provided to solve the defects of the prior art.
Disclosure of Invention
One of the objects of the present invention is to provide a range hood coupled with an air cleaning device while avoiding the disadvantages of the prior art. This lampblack absorber with air purification device linkage can discern the harmful substance polycyclic aromatic hydrocarbon concentration in the preceding culinary art environment and can link with air purification device in order to reduce the polycyclic aromatic hydrocarbon substance concentration in the current culinary art environment.
The above object of the present invention is achieved by the following technical measures:
the utility model provides a lampblack absorber with air purification device linkage which characterized in that: the device is provided with a smoke machine main body, a polycyclic aromatic hydrocarbon detection device and a linkage control device, wherein the polycyclic aromatic hydrocarbon detection device is used for calculating according to the detected temperature in the cooking area and the oil smoke size in the cooking area to obtain the current polycyclic aromatic hydrocarbon concentration in the cooking area and obtain an environment health grade signal, the linkage control device is in signal connection with an external air purification device and controls the external air purification device, and the polycyclic aromatic hydrocarbon detection device is respectively and electrically connected with the linkage control device and the smoke machine main body.
The polycyclic aromatic hydrocarbon detection device detects the concentration of polycyclic aromatic hydrocarbon in the current cooking area to obtain an environment health grade signal and transmits the environment health grade signal to the linkage control device, the linkage control device receives the environment health grade signal, the linkage control device detects data of the external air purification device to obtain an air purification data signal, the linkage control device processes the environment health grade signal and the air purification data signal and sends a control signal to the external air purification device, and the external air purification device performs air purification.
Preferably, the linkage control device is in wired signal connection with the external air purification device.
Preferably, the wired signal connection is an RS232 signal connection, an RS485 signal connection, a USB signal connection, a GPIB signal connection, or a CAN signal connection.
Preferably, the linkage control device is in wireless signal connection with the external air purification device.
Preferably, the wireless signal connection is a WiFi signal connection, a bluetooth signal connection, an NFC signal connection, or a ZIGBee signal connection.
Preferably, the polycyclic aromatic hydrocarbon detection device is provided with a temperature sensing module for detecting the temperature in the cooking area, an image acquisition module for analyzing oil smoke images in the cooking area and obtaining the size of the generated oil smoke in real time, and a calculation module for calculating the polycyclic aromatic hydrocarbon concentration of the current cooking area, wherein the temperature sensing module and the image acquisition module are respectively and electrically connected with the calculation module.
The temperature sensing module senses the temperature in the cooking area to obtain a temperature signal, the obtained temperature signal is transmitted to the calculation module as a temperature output signal, the image acquisition module acquires an oil smoke image of the cooking area to obtain an oil smoke output signal and transmits the oil smoke output signal to the calculation module, the calculation module receives the temperature output signal of the temperature sensing module and the oil smoke output signal of the image acquisition module respectively, and then the temperature output signal and the oil smoke output signal are processed to obtain the concentration of the polycyclic aromatic hydrocarbon in the current cooking area in real time.
Preferably, the calculation module is a calculation module which is constructed by mathematical modeling and obtains a mathematical relationship between the temperature and the oil smoke size and the concentration of the polycyclic aromatic hydrocarbon in the harmful gas in the oil smoke.
Preferably, the computing module is a linear computing module or a nonlinear computing module;
when the calculation module is a nonlinear calculation module, the nonlinear calculation module is an exponential calculation module, a power calculation module, a logarithmic calculation module, a neural network calculation module or a machine learning calculation module.
Preferably, the calculation module performs environmental health grade classification according to the concentration of the polycyclic aromatic hydrocarbon.
The temperature sensing module senses the temperature in the cooking area to obtain a temperature signal and transmits the obtained temperature signal to the computing module as a temperature output signal, the image acquisition module acquires oil smoke images of the cooking area to obtain oil smoke output signals and transmits the oil smoke output signals to the computing module, the computing module respectively receives the temperature output signals of the temperature sensing module and the oil smoke output signals of the image acquisition module, then the temperature output signals and the oil smoke output signals are processed to obtain the concentration of polycyclic aromatic hydrocarbon in the current cooking area in real time, meanwhile, the computing module carries out environment health grade division on the concentration of the polycyclic aromatic hydrocarbon to obtain environment health grade signals and sends the environment health grade signals to the linkage control device, and the linkage control device receives the environment health grade signals to process and sends control signals to the external air purification device.
Preferably, the linkage control device is provided with a signal transceiver module and a processing module for controlling according to the distance of the external air purification device and the air purification efficiency, the signal transceiver module is in signal connection with the external air purification device, and the processing module is electrically connected with the calculation module.
The signal transceiver module searches for all air purification devices in the environment, the distance between the air purification devices and the cooking area and the air purification efficiency of all the air purification devices to obtain air purification data signals, and the signal transceiver module sends the air purification data signals to the processing module.
The processing module receives the environment health grade signal of the calculation module and the air purification data signal of the signal receiving and sending module, the processing module judges the optimal grade of the external air purification device according to the distance of the external air purification device and the air purification efficiency corresponding to the air purification device, then the processing module obtains a control signal and sends the control signal to the signal receiving and sending module, and the signal receiving and sending module receives the control signal of the processing module and sends the control signal to the corresponding air purification device.
The invention relates to a range hood linked with an air purification device, which is provided with a range hood main body, a polycyclic aromatic hydrocarbon detection device and a linkage control device, wherein the polycyclic aromatic hydrocarbon detection device is used for calculating the current polycyclic aromatic hydrocarbon concentration of a cooking area according to the detected temperature in the cooking area and the oil smoke size of the cooking area to obtain an environmental health grade signal, the linkage control device is in signal connection with an external air purification device and controls the external air purification device, and the polycyclic aromatic hydrocarbon detection device is respectively and electrically connected with the linkage control device and the range hood main body. This lampblack absorber can detect the polycyclic aromatic hydrocarbon concentration of current culinary art region and can link with outside air purification device to make the air that contains polycyclic aromatic hydrocarbon obtain in time purification treatment, ensure user's health.
It is another object of the present invention to provide a linkage selection control method that avoids the disadvantages of the prior art. The linkage selection control method is to select a proper air purification device for control according to the position of the air purification device and the air purification efficiency.
The above object of the present invention is achieved by the following technical measures:
the provided linkage selection control method is provided with the range hood linked with the air purification device, and comprises the following steps:
step one, detecting all air purification devices in the current environment, the distances between all the air purification devices and a cooking area and the air purification efficiency of all the air purification devices by a linkage control device;
step two, the linkage control device calculates the optimal level values corresponding to all the air purification devices;
and step three, the linkage control device controls the air purification device with the maximum optimized grade value to be started.
Preferably, the above preference level value is represented by formula ⑴,
Π＝f(L-Q1,ηQ2,σ0 K0,σ1 K1,......,σn Kn,ρτ) Formula ⑴;
where pi is the preferred level value,
l is the distance between the air cleaning device and the cooking area,
η is the air purification efficiency of the air purification device,
Q1is the order of L and Q1＞0，
Q2Is of order η and Q2＞0，
σ0，σ1，……，σnFor the calculation parameters of the preferred level of preference,
k0, K1, … … and Kn are respectively sigma0，σ1，……，σnAnd K0 ∈ (- ∞, + ∞), K1 ∈ (- ∞, + ∞), … …, Kn ∈ (- ∞, + ∞),
ρτis the cross-over factor of L and η.
Preferably, the above-mentioned preference level value is calculated by the formula ⑵,
where Π is the preferred level value, L is the distance of the air purification device from the cooking area, and η is the air purification efficiency of the air purification device.
The linkage selection control method of the invention selects the smoke exhaust ventilator and the air purification device in a linkage way through three steps, and screens out the air purification device with the maximum optimal grade value, thereby achieving the optimal air purification effect.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
Fig. 1 is a schematic view of a work flow of a range hood linked with an air purification device in embodiment 1.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1.
A range hood linked with an air purification device is provided with a range hood main body, a polycyclic aromatic hydrocarbon detection device and a linkage control device, wherein the polycyclic aromatic hydrocarbon detection device is used for calculating according to the detected temperature in a cooking area and the detected oil smoke size in the cooking area to obtain the current polycyclic aromatic hydrocarbon concentration in the cooking area and obtain an environment health grade signal, the linkage control device is in signal connection with an external air purification device and controls the external air purification device, and the polycyclic aromatic hydrocarbon detection device is respectively and electrically connected with the linkage control device and the range hood main body.
The polycyclic aromatic hydrocarbon detection device detects the concentration of polycyclic aromatic hydrocarbon in the current cooking area to obtain an environment health grade signal and transmits the environment health grade signal to the linkage control device, the linkage control device receives the environment health grade signal, the linkage control device detects data of the external air purification device to obtain an air purification data signal, the linkage control device processes the environment health grade signal and the air purification data signal and sends a control signal to the external air purification device, and the external air purification device performs air purification.
The linkage control device of the embodiment is in wired signal connection with the external air purification device.
The wired signal connection of the invention is RS232 signal connection, RS485 signal connection, USB signal connection, GPIB signal connection or CAN signal connection, etc., and the specific selection is determined according to the actual situation. This embodiment is specifically RS232 signal connection.
The polycyclic aromatic hydrocarbon detection device is provided with a temperature sensing module for detecting the temperature in the cooking area, an image acquisition module for analyzing oil smoke images in the cooking area and obtaining the size of the generated oil smoke in real time, and a calculation module for calculating the concentration of polycyclic aromatic hydrocarbon in the current cooking area, wherein the temperature sensing module and the image acquisition module are respectively electrically connected with the calculation module.
The temperature in the cooking area of the invention is preferably the temperature of the detected kitchen ware, and can also be the temperature of air, oil smoke or kitchen range in the cooking area, and the specific implementation mode is determined according to the actual situation. In the embodiment, the temperature detected in the cooking area is the temperature of the kitchen ware.
The temperature sensing module senses the temperature in the cooking area to obtain a temperature signal, the obtained temperature signal is transmitted to the calculation module as a temperature output signal, the image acquisition module acquires an oil smoke image of the cooking area to obtain an oil smoke output signal and transmits the oil smoke output signal to the calculation module, the calculation module receives the temperature output signal of the temperature sensing module and the oil smoke output signal of the image acquisition module respectively, and then the temperature output signal and the oil smoke output signal are processed to obtain the concentration of the polycyclic aromatic hydrocarbon in the current cooking area in real time.
The calculation module of the invention is constructed by mathematical modeling to obtain the mathematical relation between the temperature and the oil smoke size and the concentration of the polycyclic aromatic hydrocarbon in the harmful gas in the oil smoke.
The calculation module is obtained through mathematical modeling, and the mathematical modeling is to collect the mathematical relationship between factors such as different temperatures and oil smoke sizes and the concentration of the harmful gas polycyclic aromatic hydrocarbon in the oil smoke through experiments. Sampling detection is carried out according to different experimental conditions to obtain different types of polycyclic aromatic hydrocarbon concentrations, analysis and classification are carried out to obtain a mathematical model, and therefore the calculation module can judge the current different types of polycyclic aromatic hydrocarbon concentrations according to the detection conditions of the temperature and the oil smoke size in the cooking area.
The calculation module of the invention is a linear calculation module or a nonlinear calculation module;
when the calculation module is a nonlinear calculation module, the nonlinear calculation module is one of an exponential calculation module, a power calculation module, a logarithmic calculation module, a neural network calculation module or a machine learning calculation module.
The image acquisition module acquires the condition of oil smoke generated in the cooking process in real time, specifically acquires pictures of corresponding areas in real time, processes the current kitchen oil smoke concentration, and transmits data to the calculation module.
The processing method of the image acquisition module comprises the following steps:
the image acquisition module is used for processing on the basis of an initial image acquired by the imaging equipment, the initial image is a gray scale image, the acquired initial images are serialized and sequentially processed through the initial image of a subsequent frame and the initial image of a previous frame, and the current kitchen oil smoke concentration of each subsequent frame at the moment of the initial image is obtained.
The step process of obtaining the current kitchen oil smoke concentration at the moment of the initial image of the next frame by processing the initial image of the next frame and the initial image of the previous frame each time is as follows:
(1) performing frame difference processing on the initial image of the next frame and the initial image of the previous frame to obtain a frame difference image;
(2) denoising the frame difference image in an open operation mode to obtain a denoised image;
(3) carrying out edge detection on the denoised image, and marking a motion area as an initial region of interest;
(4) carrying out gray average value calculation and area smoothness calculation on the initial region of interest, taking the region which meets the requirements of gray average value and smoothness as the next region of interest, and taking other regions as interference elimination;
(5) and (4) respectively counting the interested areas extracted in the step (4), and obtaining oil smoke concentration assignment according to the counting result.
In the step (1), the frame difference operation on the acquired initial image to obtain a frame difference image specifically comprises:
and the image acquisition module performs subtraction on the next frame of image and the previous frame of image according to the sequence of the received initial images to obtain a frame difference image with a highlighted dynamic area.
The denoising method comprises the following steps of (2) denoising a frame difference image by using an open operation to obtain a denoised image, and specifically comprises the following steps: firstly, carrying out corrosion operation on the frame difference image to eliminate noise points and tiny spikes in the image and break narrow connection; and performing expansion operation on the corroded image to recover the smoke characteristics in the original frame difference image.
The step (3) of performing edge detection on the denoised image, and marking a motion region as an initial region of interest specifically comprises the following steps: and detecting the edge of the highlight area of the frame difference image, marking the highlight area, and taking the marked area as an initial region of interest.
Specifically, the gray mean value and the area smoothness of each initial region of interest are calculated to obtain the gray mean value and the gray smoothness corresponding to each initial region of interest, the initial regions of interest which simultaneously meet the condition that the calculated gray mean value is smaller than a gray threshold and the gray smoothness is smaller than the gray smoothness threshold are used as regions of interest, and other initial regions of interest are determined as interference regions.
Specifically, in the step (5), aiming at the interested areas extracted in the step (4), the gray levels of all pixels in each interested area image are summed to obtain the gray level of each interested area image, and then the gray level of each interested area image is summed to obtain the oil smoke concentration assignment.
The target area acquired by the imaging device is represented by an area S, and any one frame of initial image is the imaging of the corresponding area S.
The initial image is made up of m x n pixels,
the gray scale values of the pixels in the subsequent frame initial image a are represented by a matrix AH, AH ═ AHi,j}，ahi,jRepresenting the gray values corresponding to the pixels of the ith row and the jth column in the initial image A of the subsequent frame, wherein i is the row where the pixel is located, j is the column where the pixel is located, i is more than or equal to 1 and less than or equal to m, and j is more than or equal to 1 and less than or equal to n; the sub-area where the ith row and jth column pixels in the initial image A of the later frame are located is ASi,j。
The gray values of the pixels of the previous frame original image B are represented by a matrix BH, { BH ═ BHi,j}，bhi,jRepresenting the gray values corresponding to the ith row and jth column pixels in the initial image B of the previous frame, wherein the sub-area where the ith row and jth column pixels in the initial image B of the previous frame are located is BSi,j。
The gray-scale values of the pixels in the frame difference image D are represented by a matrix DH, { DH ═ DH {i,j}＝{|ahi,j-bhi,j|}，dhi,jRepresenting the gray values corresponding to the ith row and jth column of pixels in the frame difference image D, and the sub-region where the ith row and jth column of pixels in the frame difference image D are located is DSi,j。
In the frame difference image, | dhi,jThe area with 0 is black; dhi,jThe area where | ≠ 0 is highlighted.
Wherein, the step (2) of carrying out corrosion operation on the frame difference image specifically comprises the following steps:
2-11, arbitrarily defining a convolution kernel theta;
2-12, performing convolution on the convolution kernel theta and the frame difference image; when the convolution kernel theta traverses the frame difference image, extracting a pixel gray minimum value p of a convolution result in the area covered by the convolution kernel and a pixel point C coincident with the center of the convolution kernel;
the gray scale of the pixel point C passes through the matrix CH ═ Ck,qExpressing that k and q are the row sequence number and the column sequence number of the pixel C,
obtaining a minimum pixel point matrix P of a convolution result obtained in the process of traversing the frame difference image by a convolution kernel theta, wherein the gray scale of the minimum pixel point matrix P is determined by a matrix PH ═ Pk,qRepresents;
2-13 correspondingly endowing the gray level of the pixel point matrix P to a pixel point C to obtain a corrosion image;
the expansion operation is carried out on the corrosion image in the step (2), and the method specifically comprises the following steps:
2-21, arbitrarily defining a convolution kernel β;
2-22, convolving the convolution kernel β with the corrosion image, and extracting the pixel gray maximum value o of the convolution result in the area covered by the convolution kernel and the pixel point R coincident with the center of the convolution kernel when the convolution kernel β traverses the corrosion image;
the gray level of the pixel point R passes through the matrix RH ═ Rl,vL and v are the row sequence number and the column sequence number of the pixel point R,
obtaining a maximum value pixel point matrix O of a convolution result obtained in the process that the convolution kernel β traverses the corrosion image, wherein the gray scale of the maximum value pixel point matrix O is determined by a matrix OH ═ Ol,vRepresents;
2-13, correspondingly endowing the gray level of the maximum pixel point matrix O to the pixel point R to obtain an expanded image, wherein the obtained expanded image is the de-noised image.
Wherein the step (3) is carried out by the following steps:
3-1, defining a filter Y, wherein the filter is a t x t matrix, and t is an odd number;
3-2, traversing the filter Y through the denoised image, calculating the gray value of the denoised image of the central pixel point of the filter at each position and the gray values of other pixel points in the neighborhood of the central pixel point, and calculating the edge detection value X of the central pixel point of the filter at each position according to the formula (I)zZ is a flag when the filter Y traverses the denoised image,
f. g is the matrix serial number of the pixel points, f is more than or equal to 1 and less than or equal to t, g is more than or equal to 1 and less than or equal to t, e is the gray value of the denoised image of the pixel point at each position of the filter, α is a weight coefficient and corresponds to the position of the filter;
3-3, detecting the edge of the central pixel point X of the filter at each positionzSubtracting the gray values of other pixels in the neighborhood of the central pixel, and judging whether the absolute value of the difference is greater than a threshold value delta;
counting the number greater than the threshold value, if the number exceeds the threshold value
Judging the pixel point position of the de-noised image corresponding to the central pixel point of the filter position as an edge point, and marking;
and 3-4, traversing the whole de-noised image by using the filter to obtain all marked edge points and obtain a preliminary region of interest.
t is 3.
It should be noted that the processing method of the image acquisition module is only one of the processing methods, and for the processing methods of other image acquisition modules, the method that only the output data of the image acquisition module of the cooking area can be obtained can be applied to the range hood linked with the air purification device, and all the methods fall within the protection scope of the present invention.
It should be noted that the image acquisition module of the present invention uses a camera to detect the oil smoke size in the cooking area, and the image acquisition module of the present invention can be used as long as the above functions of the present invention can be realized. The calculation module of the present invention calculates the concentration of the polycyclic aromatic hydrocarbon in the current cooking area through the temperature signal and the oil smoke signal, and the calculation module is a calculator or a module with calculation function, which can be used as the calculation module of the present invention.
The calculation module of the invention performs environmental health grade division according to the concentration of the polycyclic aromatic hydrocarbon. The range hood can be divided according to the environmental grade, and the range hood can judge whether the air purification device needs to be started or not according to the environmental grade. For example, the air cleaning device is activated to clean air when the environmental level is unhealthy, and is not activated when the environmental level is healthy.
The temperature sensing module senses the temperature in the cooking area to obtain a temperature signal and transmits the obtained temperature signal to the computing module as a temperature output signal, the image acquisition module acquires oil smoke images of the cooking area to obtain oil smoke output signals and transmits the oil smoke output signals to the computing module, the computing module respectively receives the temperature output signals of the temperature sensing module and the oil smoke output signals of the image acquisition module, then the temperature output signals and the oil smoke output signals are processed to obtain the concentration of polycyclic aromatic hydrocarbon in the current cooking area in real time, meanwhile, the computing module carries out environment health grade division on the concentration of the polycyclic aromatic hydrocarbon to obtain environment health grade signals and sends the environment health grade signals to the linkage control device, and the linkage control device receives the environment health grade signals to process and sends control signals to the external air purification device.
The linkage control device is provided with a signal receiving and transmitting module and a processing module for controlling according to the distance of the external air purification device and the air purification efficiency, the signal receiving and transmitting module is in signal connection with the external air purification device, and the processing module is electrically connected with the calculation module.
The signal transceiver module searches for all air purification devices in the environment, the distance between the air purification devices and the cooking area and the air purification efficiency of all the air purification devices to obtain air purification data signals, and the signal transceiver module sends the air purification data signals to the processing module.
The processing module receives the environment health grade signal of the calculation module and the air purification data signal of the signal receiving and sending module, the processing module judges the optimal grade of the external air purification device according to the distance of the external air purification device and the air purification efficiency corresponding to the air purification device, then the processing module obtains a control signal and sends the control signal to the signal receiving and sending module, and the signal receiving and sending module receives the control signal of the processing module and sends the control signal to the corresponding air purification device.
This lampblack absorber with air purification device linkage is provided with the cigarette machine main part, according to the culinary art district in-zone temperature that detects with the oil smoke size in having the culinary art district calculate get the current polycyclic aromatic hydrocarbon concentration in culinary art district and obtain the polycyclic aromatic hydrocarbon detection device of environmental health grade signal and with outside air purification device signal connection and control outside air purification device's coordinated control device, polycyclic aromatic hydrocarbon detection device is connected with coordinated control device and cigarette machine main part electricity respectively. This lampblack absorber can detect the polycyclic aromatic hydrocarbon concentration of current culinary art region and can link with outside air purification device to make the air that contains polycyclic aromatic hydrocarbon obtain in time purification treatment, ensure user's health.
Example 2.
The utility model provides a lampblack absorber with air purification device linkage, other characteristics are the same with embodiment 1, the difference lies in: the linkage control device of the embodiment is in wireless signal connection with the external air purification device.
The wireless signal connection of the invention is WiFi signal connection, Bluetooth signal connection, NFC signal connection or ZIGBee signal connection, and the specific selection is determined according to the actual situation. This embodiment is specifically a WiFi signal connection.
Compared with embodiment 1, the wireless signal connection of the present embodiment is more flexible.
Example 3.
The utility model provides a lampblack absorber with air purification device linkage, other characteristics are the same with embodiment 1, the difference lies in: the calculation formula of the calculation module is formula (I),
Cpolycyclic aromatic hydrocarbons0.05 k +0.33 k +475.1 formula (I),
wherein C isPolycyclic aromatic hydrocarbonsThe total concentration of the polycyclic aromatic hydrocarbon gas in the cooking area, kappa, and lambda are respectively output data of the temperature sensing module and the image acquisition module.
When κ ∈ (0 ℃, 200 ℃), λ ∈ (0,300), C(2-3)＝70％CPolycyclic aromatic hydrocarbons,C(4)＝20％CPolycyclic aromatic hydrocarbons,C(5-6)＝10％CPolycyclic aromatic hydrocarbons。
When k is in the range of 200 ℃, 240 ℃, and λ is in the range of 300,500, C(2-3)＝60％CPolycyclic aromatic hydrocarbons,C(4)＝25％CPolycyclic aromatic hydrocarbons,C(5-6)＝15％CPolycyclic aromatic hydrocarbons。
Wherein C is(2-3)Is the concentration of bicyclic polycyclic aromatic hydrocarbons and tricyclic polycyclic aromatic hydrocarbons, C(4)Is the concentration of tetracyclic polycyclic aromatic hydrocarbons, C(5-6)Is the concentration of pentacyclic polycyclic aromatic hydrocarbon and hexacyclic polycyclic aromatic hydrocarbon.
For example, when k is 100 ℃ and λ is 100, the data values of k and λ are directly substituted into the formula to obtain CPolycyclic aromatic hydrocarbonsIs 3785.1 and CPolycyclic aromatic hydrocarbonsIn units of pg/m3I.e. the concentration of polycyclic aromatic hydrocarbons in the current environment is 3785.1pg/m3。C(2-3)Has a concentration of 2649.57pg/m3，C(4)Has a concentration of 757.02pg/m3，C(5-6)Has a concentration of 378.51pg/m3。
The range hood of this embodiment can calculate through the oil smoke size that detects temperature and culinary art district in the culinary art district and obtain the polycyclic aromatic hydrocarbon concentration of current culinary art district, can calculate the concentration of bicyclic polycyclic aromatic hydrocarbon, tricyclic polycyclic aromatic hydrocarbon, four ring polycyclic aromatic hydrocarbon, five ring polycyclic aromatic hydrocarbon and six ring polycyclic aromatic hydrocarbon in the current environment.
Example 4.
The utility model provides a lampblack absorber with air purification device linkage, other characteristics are the same with embodiment 1, the difference lies in: the calculation formula of the calculation module is formula (II),
Cpolycyclic aromatic hydrocarbons＝0.05κ0.98+0.05λ1.05+0.33 κ λ +469.5 formula (ii).
Wherein C isPolycyclic aromatic hydrocarbonsThe total concentration of the polycyclic aromatic hydrocarbon gas in the cooking area, kappa, and lambda are respectively output data of the temperature sensing module and the image acquisition module.
When κ ∈ (0 ℃, 200 ℃), λ ∈ (0,300), C(2-3)＝70％CPolycyclic aromatic hydrocarbons,C(4)＝20％CPolycyclic aromatic hydrocarbons,C(5-6)＝10％CPolycyclic aromatic hydrocarbons。
When k is in the range of 200 ℃, 240 ℃, and λ is in the range of 300,500, C(2-3)＝60％CPolycyclic aromatic hydrocarbons,C(4)＝25％CPolycyclic aromatic hydrocarbons,C(5-6)＝15％CPolycyclic aromatic hydrocarbons。
Wherein C is(2-3)Is the concentration of bicyclic polycyclic aromatic hydrocarbons and tricyclic polycyclic aromatic hydrocarbons, C(4)Is the concentration of tetracyclic polycyclic aromatic hydrocarbons, C(5-6)Is the concentration of pentacyclic polycyclic aromatic hydrocarbon and hexacyclic polycyclic aromatic hydrocarbon.
For example, when k is 100 ℃ and λ is 100, the data values of k and λ are directly substituted into the formula to obtain CPolycyclic aromatic hydrocarbonsIs 3780.35 and CPolycyclic aromatic hydrocarbonsIn units of pg/m3I.e. the concentration of polycyclic aromatic hydrocarbons in the current environment is 3780.35pg/m3。C(2-3)Has a concentration of 2646.245pg/m3，C(4)Has a concentration of 756.07pg/m3，C(5-6)Has a concentration of 378.035pg/m3。
The range hood of this embodiment can calculate through the oil smoke size that detects temperature and culinary art district in the culinary art district and obtain the polycyclic aromatic hydrocarbon concentration of current culinary art district, can calculate the concentration of bicyclic polycyclic aromatic hydrocarbon, tricyclic polycyclic aromatic hydrocarbon, four ring polycyclic aromatic hydrocarbon, five ring polycyclic aromatic hydrocarbon and six ring polycyclic aromatic hydrocarbon in the current environment.
Example 5.
A lampblack absorber with air purification device linkage, other characteristics are the same as embodiment 3 or embodiment 4, the difference lies in: the calculation module of the invention performs environmental health grade division according to the concentration of the polycyclic aromatic hydrocarbon.
In the embodiment, the health grade is classified according to the GBT18883-2 indoor air quality standard, and the invention can also be classified according to other quality standards, such as GB3059-2012 and WTO environmental quality Standard. The present invention may also be partitioned according to other predetermined environmental quality values.
This example is environmental grading of benzo [ a ] pyrene at a defined average concentration compared to polycyclic aromatic hydrocarbon concentration as specified by national standards.
When C is presentPolycyclic aromatic hydrocarbons＜CBenzo [ a ]]PyreneWhen it is determined that the patient is in a healthy state, when CPolycyclic aromatic hydrocarbons≥CBenzo [ a ]]PyreneIf so, the user is judged as an unhealthy level.
Wherein C isBenzo [ a ]]PyreneBenzo [ a ] specified for the national standard]Average defined concentration of pyrene, and CBenzo [ a ]]Pyrene＝1ng/m3。
Compared with the embodiment 3 or 4, the embodiment carries out environmental health grading according to the concentration of the polycyclic aromatic hydrocarbon, and can judge the air quality of the current cooking environment more intuitively.
Example 6.
A lampblack absorber with air purification device linkage, other characteristics are the same as embodiment 5, the difference lies in: dividing the polycyclic aromatic hydrocarbon concentration by the average limit concentration of benzo [ a ] pyrene specified by national standard to carry out environmental health grade division, wherein the formula is as follows (III):
if 0 ≦ ε ≦ 0.5, it is judged as a healthy grade, if 0.5 ≦ ε ≦ 1, it is judged as a good grade, and if ε > 1, it is judged as an unhealthy grade.
Compared with the embodiment 3 or 4, the embodiment carries out environmental health grading according to the concentration of the polycyclic aromatic hydrocarbon, and can judge the air quality of the current cooking environment more intuitively.
Example 7.
A range hood linked with an air purification device has the same other characteristics as embodiment 5 or embodiment 6 except that: the polycyclic aromatic hydrocarbon environment grade division is carried out by weighting the polycyclic aromatic hydrocarbon concentration and equivalent toxicity factors.
The total equivalent toxic concentration of polycyclic aromatic hydrocarbons as calculated by formula (iv):
wherein BEQ is total equivalent toxicity factor of polycyclic aromatic hydrocarbon, μ is mark of polycyclic aromatic hydrocarbon type, 1 ≤ μ ≤ ξ and μ and ξ are natural numbers, BEQμEquivalent toxic concentration of the μ polycyclic aromatic hydrocarbon, beqμCalculated by the formula (V),
beqμ＝Cμ*TEFμthe compound of the formula (V),
Cμconcentration of the second polycyclic aromatic Hydrocarbon, TEFμIs equivalent toxicity factor corresponding to the mu polycyclic aromatic hydrocarbon. Equivalent toxicity factors for different polycyclic aromatic hydrocarbons are shown in table 1:
TABLE 1 equivalent toxicity factor for various polycyclic aromatic hydrocarbons
Compared with example 5 or example 6, the equivalent toxicity factor of different polycyclic aromatic hydrocarbons is introduced in the present example, because the toxicity of the polycyclic aromatic hydrocarbons is different, and the toxicity factor is different to the toxicity factor of the polycyclic aromatic hydrocarbons, so the toxicity factor is different to human body.
Example 8.
A lampblack absorber with air purification device linkage, other characteristics are the same as embodiment 7, the difference lies in: in the embodiment, the total equivalent toxicity concentration of the polycyclic aromatic hydrocarbon is compared with the average limit concentration of benzo [ a ] pyrene specified by national standard for environment grade classification;
when BEQ < CBenzo [ a ]]PyreneWhen the BEQ is not less than C, the health grade is judgedBenzo [ a ]]PyreneIf so, the user is judged to be unhealthy.
Compared with example 5, the equivalent toxicity factor of different polycyclic aromatic hydrocarbons is introduced in the present example, because the toxicity and the harm to human body are different for different polycyclic aromatic hydrocarbons.
Example 9.
A lampblack absorber with air purification device linkage, other characteristics are the same as embodiment 7, the difference lies in: and dividing the total equivalent toxicity concentration of the polycyclic aromatic hydrocarbon by the average limit concentration of benzo [ a ] pyrene specified by national standard to carry out environmental health grade division, wherein the formula is as follows:
when delta is more than or equal to 0 and less than or equal to 0.5, the grade is judged as a healthy grade, when delta is more than 0 and less than or equal to 1, the grade is judged as a good grade, and when delta is more than 1, the grade is judged as an unhealthy grade.
Compared with example 6, the equivalent toxicity factor of different polycyclic aromatic hydrocarbons is introduced in the present example, because the toxicity and the harm to human body are different for different polycyclic aromatic hydrocarbons.
Example 10.
A linkage selection control method of a range hood having linkage of an air cleaning device as in embodiments 1 to 9, comprising the steps of:
step one, detecting all air purification devices in the current environment, the distances between all the air purification devices and a cooking area and the air purification efficiency of all the air purification devices by a linkage control device;
step two, the linkage control device calculates the optimal level values corresponding to all the air purification devices;
and step three, the linkage control device controls the air purification device with the maximum optimized grade value to be started.
The preferred grade value is represented by the equation ⑴,
Π＝f(L-Q1,ηQ2,σ0 K0,σ1 K1,......,σn Kn,ρτ) Formula ⑴;
where pi is the preferred level value,
l is the distance between the air cleaning device and the cooking area,
η is the air purification efficiency of the air purification device,
Q1is the order of L and Q1＞0，
Q2Is of order η and Q2＞0，
σ0，σ1，……，σnFor the calculation parameters of the preferred level of preference,
k0, K1, … … and Kn are respectively sigma0，σ1，……，σnAnd K0 ∈ (- ∞, + ∞), K1 ∈ (- ∞, + ∞), … …, Kn ∈ (- ∞, + ∞),
ρτis the cross-over factor of L and η.
Compared with example 1, of this example
Note that σ in the present invention0，σ1，……，σnAnd ρτIs determined by the performance of the air cleaning device or its real parameters, σ0，σ1，……，σnAnd ρτThe specific value of (b) is determined according to actual conditions.
The linkage selection control method is used for carrying out linkage selection on the range hood and the air purification device through three steps, and the air purification device with the maximum optimal grade value is screened out, so that the optimal air purification effect is achieved.
Example 11.
A linkage selection control method is otherwise the same as embodiment 10, except that the preference level value is calculated by the formula ⑵,
where Π is the preferred level value, L is the distance of the air purification device from the cooking area, and η is the air purification efficiency of the air purification device.
The preference level value of the present embodiment is related to only the distance and the air purification efficiency as compared with embodiment 1, and the calculation of the preference level value becomes simplified with respect to embodiment 1.
Example 12.
In a linkage selection control method, a preference level value is calculated by the expression ⑵,
where Π is the preferred level value, L is the distance of the air purification device from the cooking area, and η is the air purification efficiency of the air purification device.
In the air cleaning device 1, L is 3m, and η is 70%, so pi is 0.78.
In the air cleaning device 2, L is 5m, and η is 90%, so pi is 0.36.
The interlock control device thus selects the air cleaning device 2 to be turned on. The effect of purifying the air containing the polycyclic aromatic hydrocarbon in the current cooking area by different air purification devices can be judged through the preferred grade value, and the purifying effect is better when the preferred grade value is larger.
The lampblack absorber can carry out the environmental health grade to the concentration of the polycyclic aromatic hydrocarbon of current environment and divide, and this lampblack absorber still has wind speed control module, suggestion module and fire control module simultaneously, and the current environmental health grade automatically regulated wind speed and the firepower of outside stove make the concentration of the polycyclic aromatic hydrocarbon of current environment reduce, remind the user to pay attention to the protection simultaneously.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (12)
1. The utility model provides a lampblack absorber with air purification device linkage which characterized in that: the cooking range hood is provided with a range hood main body, a polycyclic aromatic hydrocarbon detection device and a linkage control device, wherein the polycyclic aromatic hydrocarbon detection device is used for calculating according to the detected temperature in the cooking area and the oil smoke size in the cooking area to obtain the current polycyclic aromatic hydrocarbon concentration in the cooking area and obtain an environmental health grade signal, the linkage control device is in signal connection with an external air purification device and controls the external air purification device, and the polycyclic aromatic hydrocarbon detection device is respectively and electrically connected with the linkage control device and the range hood main body;
the method comprises the following steps that a polycyclic aromatic hydrocarbon detection device detects the concentration of polycyclic aromatic hydrocarbon in a current cooking area to obtain an environment health grade signal and transmits the environment health grade signal to a linkage control device, the linkage control device receives the environment health grade signal, the linkage control device detects data of an external air purification device to obtain an air purification data signal, the linkage control device processes the environment health grade signal and the air purification data signal and sends a control signal to the external air purification device, and the external air purification device purifies air;
the polycyclic aromatic hydrocarbon detection device is provided with a temperature sensing module for detecting the temperature in the cooking area, an image acquisition module for analyzing oil smoke images in the cooking area and obtaining the size of the generated oil smoke in real time, and a calculation module for calculating the concentration of the polycyclic aromatic hydrocarbon in the current cooking area, wherein the temperature sensing module and the image acquisition module are respectively and electrically connected with the calculation module;
the temperature sensing module senses the temperature in the cooking area to obtain a temperature signal and transmits the temperature signal to the computing module as a temperature output signal, the image acquisition module acquires an oil smoke image of the cooking area to obtain an oil smoke output signal and transmits the oil smoke output signal to the computing module, the computing module receives the temperature output signal of the temperature sensing module and the oil smoke output signal of the image acquisition module respectively, and then the temperature output signal and the oil smoke output signal are processed to obtain the concentration of the polycyclic aromatic hydrocarbon in the current cooking area in real time;
the calculation formula of the calculation module is formula (I),
Cpolycyclic aromatic hydrocarbons0.05 k +0.33 k +475.1 formula (I),
wherein C isPolycyclic aromatic hydrocarbonsThe total concentration of the polycyclic aromatic hydrocarbon gas in the cooking area is shown as k, the output data of the temperature sensing module is shown as k, and the output data of the image acquisition module is shown as lambda; or
The calculation formula of the calculation module is formula (II),
Cpolycyclic aromatic hydrocarbons＝0.05κ0.98+0.05λ1.05+0.33 κ λ +469.5 formula (II),
wherein C isPolycyclic aromatic hydrocarbonsThe total concentration of polycyclic aromatic hydrocarbon gas in the cooking area, kappa is output data of the temperature sensing module, and lambda is output data of the image acquisition module。
2. A range hood in conjunction with an air purification device, as recited in claim 1, further comprising: the linkage control device is connected with the external air purification device through a wired signal.
3. A range hood in conjunction with an air purification device, as recited in claim 2, further comprising: the wired signal connection is RS232 signal connection, RS485 signal connection, USB signal connection, GPIB signal connection or CAN signal connection.
4. A range hood in conjunction with an air purification device, as recited in claim 1, further comprising: and the linkage control device is in wireless signal connection with the external air purification device.
5. A range hood in conjunction with an air purification device, as recited in claim 4, further comprising: the wireless signal connection is WiFi signal connection, Bluetooth signal connection, NFC signal connection or ZIGBee signal connection.
6. A range hood in conjunction with an air purification device, as recited in claim 1, further comprising: the calculation module is constructed by mathematical modeling to obtain the mathematical relationship between the temperature and the oil smoke size and the concentration of the polycyclic aromatic hydrocarbon in the harmful gas in the oil smoke.
7. A range hood in conjunction with an air purification device, as recited in claim 6, further comprising: the calculation module is a linear calculation module or a nonlinear calculation module;
when the calculation module is a nonlinear calculation module, the nonlinear calculation module is an exponential calculation module, a power calculation module, a logarithmic calculation module, a neural network calculation module or a machine learning calculation module.
8. A range hood in conjunction with an air purification device, as recited in claim 7, further comprising: the calculation module is used for carrying out environmental health grade division according to the concentration of the polycyclic aromatic hydrocarbon;
the temperature sensing module senses the temperature in the cooking area to obtain a temperature signal and transmits the obtained temperature signal to the computing module as a temperature output signal, the image acquisition module acquires oil smoke images of the cooking area to obtain oil smoke output signals and transmits the oil smoke output signals to the computing module, the computing module respectively receives the temperature output signals of the temperature sensing module and the oil smoke output signals of the image acquisition module, then the temperature output signals and the oil smoke output signals are processed to obtain the concentration of polycyclic aromatic hydrocarbon in the current cooking area in real time, meanwhile, the computing module carries out environment health grade division on the concentration of the polycyclic aromatic hydrocarbon to obtain environment health grade signals and sends the environment health grade signals to the linkage control device, and the linkage control device receives the environment health grade signals to process and sends control signals to the external air purification device.
9. A range hood in conjunction with an air purification device, as recited in claim 8, further comprising: the linkage control device is provided with a signal receiving and transmitting module and a processing module for controlling according to the distance of the external air purification device and the air purification efficiency, the signal receiving and transmitting module is in signal connection with the external air purification device, and the processing module is electrically connected with the computing module;
the signal transceiver module searches for the distance between all the air purification devices in the environment and the cooking area and the air purification efficiency of all the air purification devices to obtain an air purification data signal, the signal transceiver module sends the air purification data signal to the processing module,
the processing module receives the environment health grade signal of the calculation module and the air purification data signal of the signal receiving and sending module, the processing module judges the optimal grade of the external air purification device according to the distance of the external air purification device and the air purification efficiency corresponding to the air purification device, then the processing module obtains a control signal and sends the control signal to the signal receiving and sending module, and the signal receiving and sending module receives the control signal of the processing module and sends the control signal to the corresponding air purification device.
10. A linkage selection control method having the range hood in linkage with the air cleaning device as claimed in any one of claims 1 to 9, comprising the steps of:
step one, detecting all air purification devices in the current environment, the distances between all the air purification devices and a cooking area and the air purification efficiency of all the air purification devices by a linkage control device;
step two, the linkage control device calculates the optimal level values corresponding to all the air purification devices;
and step three, the linkage control device controls the air purification device with the maximum optimized grade value to be started.
11. The linkage selection control method according to claim 10, wherein the preference level value is expressed by an equation ⑴,
Π＝f(L-Q1,ηQ2,σ0 K0,σ1 K1,......,σn Kn,ρτ) Formula ⑴;
where pi is the preferred level value,
l is the distance between the air cleaning device and the cooking area,
η is the air purification efficiency of the air purification device,
q1 is of the order of L and Q1 > 0,
q2 is of the order η and Q2 > 0,
σ0，σ1，……，σnfor the calculation parameters of the preferred level of preference,
k0, K1, … … and Kn are respectively sigma0，σ1，……，σnAnd K0 ∈ (- ∞, + ∞), K1 ∈ (- ∞, + ∞), … …, Kn ∈ (- ∞, + ∞),
ρτis the cross-over factor of L and η.
12. The linkage selection control method according to claim 10, wherein the preference level value is calculated by an equation ⑵,
where Π is the preferred level value, L is the distance of the air purification device from the cooking area, and η is the air purification efficiency of the air purification device.
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