CN108918368A - Image-pickup method, device and the computer readable storage medium of flue gas - Google Patents
Image-pickup method, device and the computer readable storage medium of flue gas Download PDFInfo
- Publication number
- CN108918368A CN108918368A CN201810647837.3A CN201810647837A CN108918368A CN 108918368 A CN108918368 A CN 108918368A CN 201810647837 A CN201810647837 A CN 201810647837A CN 108918368 A CN108918368 A CN 108918368A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- image
- smooth surface
- concern face
- concern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000003546 flue gas Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 53
- 239000002245 particle Substances 0.000 claims description 45
- 239000008187 granular material Substances 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 11
- 239000000779 smoke Substances 0.000 description 50
- 241000208125 Nicotiana Species 0.000 description 40
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 40
- 239000003517 fume Substances 0.000 description 38
- 239000003921 oil Substances 0.000 description 26
- 238000010411 cooking Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 235000019504 cigarettes Nutrition 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- 230000000391 smoking effect Effects 0.000 description 5
- 239000008157 edible vegetable oil Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N2015/1024—Counting particles by non-optical means
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Ventilation (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of image-pickup method of flue gas, device, computer-readable medium, the image-pickup method of the flue gas includes the following steps：Image capture instruction is obtained, concern face information is obtained according to image capture instruction；According to the concern face information, the display smooth surface Chong Die with concern face is formed；Image acquisition device shows the flue gas information in smooth surface.Technical solution of the present invention is conducive to improve the precision of Image Acquisition.
Description
Technical field
The present invention relates to the image-pickup method of Image Acquisition field more particularly to flue gas, device and computer-readable deposit
Storage media.
Background technique
With the development of society, the improvement of people's living standards, people's health consciousness is also increased accordingly, for example, oil suction
Smoke machine gradually becomes the essential electric appliance of each family.In the selection course of kitchen ventilator, the most concerned pain of user
Point is smoke absorption effect.In the research of smoke absorption effect, involve the need for recording the process that kitchen ventilator absorbs oil smoke, and mesh
Preceding recording mode can not accurately record the process of fume-exhausting due to the specific form of oil smoke, seriously affect fume-exhausting effect
The precision of fruit.
Above content is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that above content is existing skill
Art.
Summary of the invention
The main purpose of the present invention is to provide a kind of image-pickup methods of flue gas, it is intended to solve the Image Acquisition of flue gas
The not high technical problem of precision.
To achieve the above object, the present invention provides a kind of image-pickup method of flue gas,
The image-pickup method of the flue gas includes the following steps：
Image capture instruction is obtained, concern face information is obtained according to image capture instruction；
According to the concern face information, the display smooth surface Chong Die with concern face is formed；
Image acquisition device shows the flue gas information in smooth surface.
Preferably, described according to the concern face information, the step of forming the display smooth surface Chong Die with concern face, includes：
Area, shape and the coordinate information in concern face are determined according to concern face information；
The position for generating the light source of display smooth surface is adjusted, so that display smooth surface is Chong Die with the concern face.
Preferably, the light source includes light source body and molding cover；The light source body is set in the molding cover, institute
It states molding cover and offers out light gap to the side in the concern face, so that the light of the light source body is after going out light gap
Form the display smooth surface.
Preferably, the quantity of the light source is two, and two light sources are set to the opposite sides in the concern face, so that
Two display smooth surfaces are Chong Die with concern face.
Preferably, described image acquisition device acquisition display smooth surface on flue gas information the step of include：
The acquisition angles and focal length of image collecting device are adjusted, so that the collection surface of image collecting device and display smooth surface weight
It closes.
Preferably, the focal length of image collecting device is in the collection surface.
Preferably, described according to concern face information, the step of forming Chong Die with concern face display smooth surface, further includes before：
Obtain the quantity of liquid particles and the quantitative proportion of solid granulates in flue gas；
When the quantitative proportion of the droplet particles in the flue gas is more than or equal to preset ratio, the display smooth surface is
White light face.
Preferably, described according to concern face information, the step of forming Chong Die with concern face display smooth surface, further includes before：
Obtain the quantity of liquid particles and the quantitative proportion of solid granulates in flue gas；
When the quantitative proportion of the solid granulates in the flue gas is more than or equal to preset ratio, the display smooth surface is
Coloured smooth surface.
Preferably, described according to concern face information, the step of forming Chong Die with concern face display smooth surface, further includes before：
Obtain the concentration of particle in flue gas；
When the concentration of particle in the flue gas is less than or equal to preset concentration, the display smooth surface is coloured smooth surface.
In addition, to achieve the above object, the present invention also provides a kind of image collecting device of flue gas, the image of the flue gas
Acquisition device includes：Memory, processor and it is stored in the flue gas that can be run on the memory and on the processor
Image acquisition procedure, when the computer program is executed by the processor the step of image-pickup method of realization flue gas.
In addition, to achieve the above object, it is described computer-readable the present invention also provides a kind of computer readable storage medium
The image acquisition procedure of flue gas is stored on storage medium, the image acquisition procedure of the flue gas realizes cigarette when being executed by processor
The step of image-pickup method of gas.
In the present invention, image capture instruction is obtained first, and concern face information is obtained according to image capture instruction；Further according to
The concern face information forms the display smooth surface Chong Die with concern face；Then image acquisition device shows the cigarette in smooth surface
Gas information；Before image acquisition device image, the concern face for needing to acquire image is first determined, and formed on concern face
Show smooth surface, i.e., form light wall on concern face so that the flue gas " being illuminated " in display smooth surface, particle in flue gas and/or
Under the irradiation of light scattering, reflection and refraction effect occur for drop, so that showing of more cleaning of ingredient in flue gas
Come, when image collecting device carries out Image Acquisition to concern face, institute's acquired image is according to clear, reliable；Simultaneously as
The presence of smooth surface is shown, so that the flue gas between image collecting device and display smooth surface is big on influence brought by Image Acquisition
Width weakens, and is further conducive to the precision for improving Image Acquisition.
Detailed description of the invention
Fig. 1 is the flow diagram of one embodiment of flue gas image-pickup method of the present invention；
Fig. 2 is the structural schematic diagram of smoke machine；
Fig. 3 is the positional diagram between smoke machine front and cooking utensil；
Positional diagram of the Fig. 4 between smoke machine right side and cooking utensil
Fig. 5 is that laser display smooth surface is radiated at an embodiment schematic diagram on concern face；
Fig. 6 is that laser display smooth surface is radiated at another embodiment schematic diagram on concern face；
Fig. 7 is that laser display smooth surface is radiated at another embodiment schematic diagram on concern face；
Fig. 8 is that laser display smooth surface is radiated at another embodiment schematic diagram on concern face.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
| Label | Title | Label | Title |
| 100 | Exhaust fume collecting hood | 110 | On front side of exhaust fume collecting hood |
| 120 | On the left of exhaust fume collecting hood | 130 | On the right side of exhaust fume collecting hood |
| 200 | Smoke machine rack | 300 | Check-valves |
| 400 | Cookware | M | Concern face |
| N | Show smooth surface |
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The primary solutions of the embodiment of the present invention are：By forming display smooth surface N on concern face M, so that concern face M
Interior flue gas reflects under the action of light, scatters or refracted light, to greatly improve the collection effect of image collecting device.
The specifically technical solution of bright the application below.
The image-pickup method of flue gas includes the following steps：
Step S10 obtains image capture instruction, obtains concern face M information according to image capture instruction；
There are many modes for obtaining image capture instruction, the image capture instruction that can be sent for external remote control equipment,
For active detecting or image capture instruction can be obtained.After receiving image capture instruction, according to instruction in preset number
According to the information for obtaining concern face M in table, information includes location information, shape information and area information of concern face M etc..Its
In, the location information of concern face M can be coordinate position, or using other components as reference.Come when with coordinate position
When the position of the concern face of determination M, three coordinate values are included at least, the position of concern face M is determined by three coordinate values.Wherein,
Concern face M refers to that user needs to acquire the plane of image, such as front side 110, left side 120 or the right side 130 of kitchen ventilator.When
Using other components as when reference, needing depending on practical situation, for example, when acquiring the image of kitchen ventilator smoke evacuation, it can
With with the structure of kitchen ventilator itself or kitchen ventilator position as reference point.
Step S20 forms the display smooth surface N Chong Die with concern face M according to the concern face M information；
After the position of the concern face of obtaining M, control light source setting forms display smooth surface N on concern face M.Display
Smooth surface N is Chong Die with concern face M, guarantees that display smooth surface N fills or cover comprehensively concern face M, so that all cigarettes in concern face M
Gas is all shone.Show smooth surface N shape it is secondary without limitation, be subject to guarantee display smooth surface N in " particle " quilt " illuminating ".
It is worth noting that display smooth surface N is " planar ", it is to be formed by light source from the side edge emitting of display smooth surface N.
Step S30, image acquisition device show the flue gas information on smooth surface N.
When the flue gas in concern face M, which is shown smooth surface N, to be illuminated, image collecting device carries out Image Acquisition to flue gas.Figure
As the type of acquisition device has very much, such as video record, photograph taking etc., for using camera to shoot.Light is shown in acquisition
When the image information of face N, the position of camera is first adjusted, so that the camera lens of camera is located at the side of display smooth surface N, then adjusts camera
Focal length so that focal length is fallen on display smooth surface N (concern face M), acquisition of then taking pictures again.The acquisition of described image acquisition device is aobvious
The step of showing the flue gas information on smooth surface N include：The acquisition angles and focal length for adjusting image collecting device, so that image collector
The collection surface set is overlapped with display smooth surface N.The focal length of image collecting device is in the collection surface.
In the present embodiment, image capture instruction is obtained first, and M information in concern face is obtained according to image capture instruction；Again
According to the concern face M information, the display smooth surface N Chong Die with concern face M is formed；Then image acquisition device shows smooth surface
Flue gas information on N；Before image acquisition device image, the concern face M for needing to acquire image is first determined, and paying close attention to
Display smooth surface N is formed on the M of face, i.e., forms light wall on concern face M, so that the flue gas " being illuminated " in smooth surface N is shown, in flue gas
Particle and/or drop under the irradiation of light, occur scattering, reflection and refraction effect so that ingredient is more clear in flue gas
That washes shows, when image collecting device to concern face M carry out Image Acquisition when, institute's acquired image according to it is clear, can
It leans on；Simultaneously as the presence of display smooth surface N, so that the flue gas between image collecting device and display smooth surface N is to Image Acquisition
Brought influence substantially weakens, and is further conducive to the precision for improving Image Acquisition.
It is described according to the concern face M information in order to ensure the registration of display smooth surface N and concern face M, it is formed and concern
Face M overlapping display smooth surface N the step of include：
Step S21 determines area, shape and the coordinate information of concern face M according to concern face M information；
Concern face M information include determine concern face M shape shape information, determine concern face M area area information and
The coordinate information of the concern face position M.Wherein, pay close attention to face M shape can have very much, such as circle, rectangle, triangle and its
The polygon etc. of its type.The area information of concern face M needs depending on specific operating condition, with the tobacco control of range hood
For ability detection, before testing, it is thus necessary to determine that those regions belong to the tobacco control region of flue gas, which region belongs to flue gas
Escape region, the range etc. in region of escaping.Wherein, the area of region of escape, it is thus necessary to determine that the flue gas of flue gas overwhelming majority escape,
Within the scope of which.For example, the region of escape of front side is belonged in 100 leading flank of exhaust fume collecting hood to the distance for the 20cm that extends outwardly, collection
100 left side of petticoat pipe and right side extend outwardly respectively 15cm distance in belong to front side region of escape and right side region of escape.It sits
Mark the absolute coordinate information that information can be space, or the exhaust fume collecting hood 100 with kitchen ventilator is the relative coordinate letter of reference
Breath etc..
Step S22 adjusts the position for generating the light source of display smooth surface N, so that display smooth surface N is Chong Die with the concern face M.
After the position of the concern face of determining M, shape and area, so that it may by adjust display smooth surface N position come
Ensure to show that smooth surface N is overlapped with face M is paid close attention to.Different shape and area can be selected according to the shape of concern face M and area
Show smooth surface N.It is identical as concern face M to show that the shape of smooth surface N is not necessarily intended to, still, display smooth surface N has to that pass can be covered
Note face M.Show that the area of smooth surface N is more than or equal to the area of concern face M.
Wherein, it shows that the generation type of smooth surface N has very much, lasing area can be formed by laser, can be tied by setting
Structure realizes by barrier structure, such as by way of light slit.It shows that smooth surface N requires covering concern face M, also only irradiates
In concern face M.Light source be arranged in display mono- side smooth surface N direction, by from display smooth surface N side ray, with
Radiation forms light wall.
A kind of mode for forming display smooth surface N is described below, the light source includes light source body and molding cover；The light source
Ontology is set in the molding cover, and the molding cover offers out light gap to the side of the concern face M, so that described
The light of light source body forms the display smooth surface N after going out light gap.It forms the shape of cover and the form in light gap can be with out
Have it is very much, for example, the form in light gap can be a camber line out so that display smooth surface N from the point concentrated start it is fan-shaped to
Side radiation, the form in light gap may be strip straight line out, so that display smooth surface N is extended to form from a line to side.
Elongated setting is covered in molding, and light gap starts along the length direction of molding cover out, is provided with multiple light sources, light in molding cover
When source is opened, light is projected from light gap out forms a display smooth surface N.
In some embodiments, in order to improve the effect that display smooth surface N irradiates concern face M, the quantity of the light source is two
A, two light sources are set to the opposite sides of the concern face M, so that two display smooth surface N are Chong Die with concern face M.Concern
Face M, at the both ends of concern face M, is respectively arranged with a light source in rectangle setting, and two go out light gap and are oppositely arranged,
So that two display smooth surface N extend from both ends to centre.So set, avoiding causing since light is decayed during irradiation
The light intensity at the concern face both ends M is different, and the phenomenon of Image Acquisition inaccuracy is occurred.
It is described according to concern face M information in order to further improve the display effect of concern face M, it is formed and concern face M weight
Further include before the step of folded display smooth surface N：
Obtain the quantity of liquid particles and the quantitative proportion of solid granulates in flue gas；
Specifically, in the present embodiment, the particle in flue gas include it is a variety of, for including liquid and solid granulates.
When light is radiated in liquid particles, reflection, refraction and scattering may occur for light, when droplet morphology is three rib type, light
Line will be broken down into a variety of different colors.When light is radiated on solid granulates, light can occur to reflect and scatter, and make
It obtains particle " brighter ".
When the quantitative proportion of the droplet particles in the flue gas is more than or equal to preset ratio, the display smooth surface N
For white light.
Preset ratio is 20~80%, i.e. the ratio that the amount of droplet particles accounts for particle total amount is more than or equal to 20~80%
When, using white light, at this time by the irradiation of white light, by the more bright of droplet particles irradiation.
When the quantitative proportion of the droplet particles in the flue gas is less than preset ratio, the display smooth surface N is colored light.
When the amount of droplet particles accounts for the ratio of particle total amount less than 20%, using light such as the red, yellow, and green for being easy to be collected.At this point, color
When light is radiated on particle, so that particle also takes corresponding color, to be easy to be collected by image collecting device, favorably
In the collection effect for improving image information, be conducive to the precision for improving tobacco control ability evaluation.
In some embodiments, described according to concern face information in order to improve the radiation response for showing smooth surface, it is formed and is closed
Further include before the step of display smooth surface of note face overlapping：
Obtain the quantity of liquid particles and the quantitative proportion of solid granulates in flue gas；When the solid granulates in the flue gas
When quantitative proportion is more than or equal to preset ratio, the display smooth surface is coloured smooth surface.
Preset ratio is 3~30%, i.e. the ratio that the amount of solid granulates accounts for particle total amount is more than or equal to 3~30%
When, using colored light, colored light can be feux rouges, yellow light, blue light etc., by taking green light as an example, mainly in air due to green light
Scattering it is preferable, camera/human eye is sensitive to the comparison of green (532nm) wavelength.If human eye is to the quick of green (532nm) wavelength
8 times bigger than red 650nm of sensitivity or so, 10 times bigger than feux rouges of the visual effect of green light or so.I.e. when the number of solid granulates
When measuring accounting and being more than or equal to 3~30%, under the irradiation of coloured smooth surface, whether liquid particles or solid granulates (Gu
State particle can be used as the background of liquid particles, when light passes through liquid particles, can be irradiated on solid granulates further
Reflection), all it is more easier " being lighted ", is more easier to be captured by human eye or image collecting device, is conducive to improve image
The effect of acquisition.
In some embodiments, described according to concern face information in order to improve the radiation response for showing smooth surface, it is formed and is closed
Further include before the step of display smooth surface of note face overlapping：
Obtain the concentration of particle in flue gas；
When the concentration of particle in the flue gas is less than or equal to preset concentration, the display smooth surface is coloured smooth surface.
Specifically, in the present embodiment, smoke particle is mainly based on partial size 655nm particulate below, preset concentration 2.3
×105A/cm3~5 × 107A/cm3, i.e., when in unit volume amounts of particles reach 2.3 × 105A/cm3~5 × 107A/cm3
When, using colored light, by that will show that smooth surface is provided with coloured light face, it will significantly improve particle in oil smoke " brightness ".Have
Coloured light can be feux rouges, yellow light, blue light etc., by taking green light as an example, mainly since the aerial scattering of green light is preferable, and phase
Machine/human eye is sensitive to the comparison of green (532nm) wavelength.It is worth noting that concern face should make suitable when concentration is too big
When adjustment (such as the distance between reduction image acquisition device and concern face), to reduce high concentration oil smoke to Image Acquisition
Interference.
Present invention further propose that a kind of image collecting device of flue gas, the image collecting device of the flue gas include：It deposits
Reservoir, processor and the image acquisition procedure for being stored in the flue gas that can be run on the memory and on the processor, institute
State the step of realizing following method when computer program is executed by the processor：
Image capture instruction is obtained, M information in concern face is obtained according to image capture instruction；
According to the concern face M information, the display smooth surface N Chong Die with concern face M is formed；
Image acquisition device shows the flue gas information on smooth surface N.
The present invention provides a kind of computer readable storage medium, which is characterized in that on the computer readable storage medium
It is stored with the image acquisition procedure of flue gas, following operation is realized when the image acquisition procedure of the flue gas is executed by processor：
Image capture instruction is obtained, M information in concern face is obtained according to image capture instruction；
According to the concern face M information, the display smooth surface N Chong Die with concern face M is formed；
Image acquisition device shows the flue gas information on smooth surface N.
Below with by flue gas image-pickup method be used for range hood smoking can connect evaluation in be specifically described.
Laser beam is shaped as piece light i.e. planar light using lens first, adjusting laser plane makes it be radiated at the flat of care
On face.When evaluating leakage cigarette situation on front side of smoke machine, which can choose the plane for being parallel to cold plate foreboard, when evaluation oil smoke
When two side leakage cigarette situation of machine, it can choose and be parallel to two side plane of cold plate.After adjusting laser plane, the position of camera is adjusted
And focal length, focus on it on laser plane, while should be noted that the master for making the shooting visual field of camera cover oil smoke ascension diffusion
Want region.After adjusting laser plane and camera, when oil smoke ascension, diffusion, laser can illuminate in concern plane adjusted
Oil smoke, while can choose the time open camera, in the form of serial-gram record oil smoke diffusion, ascension the case where.Finally,
By the processing to photo, oil smoke distribution situation on laser plane, in relevant range is obtained, and then obtains evaluation kitchen ventilator
The token state of smoking ability.Laser irradiation plane is determined by concern plane in this programme, is primarily upon before smoke machine and is controlled
Two sides.The smoke pumping ability of kitchen ventilator can be effectively characterized by the oil smoke distribution situation of front and two sides.
In the present solution, the type of kitchen ventilator is unlimited, all types, nearly smoking machine, european style kitchen ventilator etc. can lead to currently on the market
The method is crossed to be tested.A large amount of smoke particle can be generated during cooking follows flow field to move, when with laser plane
When illuminating flow field, due to the scattering of smoke particle, different luminance fields will be generated under different particle concentrations, thus can be with
Concentration field is replaced with luminance field to characterize the oil smoke concentration in laser irradiation plane.
Since concentration field is continuous field, it is possible to think that the sum of gray value in the A of region ∑ S1 indicates escaped particles
It measures, the sum of all gray values ∑ S2 indicates the amount of the soot particles in tobacco control area in the B of region.It can indicate the escapement ratio η of oil smoke
=∑ S1/ (∑ S1+ ∑ S2), the i.e. gray value of region of escape and total the ratio between gray value.The escapement ratio can be instantaneous single according to certain
The ratio for opening oil smoke distribution in photo calculates；It can also be averaged to the multiple pictures in certain period, obtain the period
Interior mean concentration field is calculated again.
According to image collecting device acquired image information evaluation range hood smoke pumping ability.Image collecting device institute
The image information of acquisition can assess the smoke pumping energy of range hood by calculating the gray value in picture by taking photo as an example
Power.
Specifically, a kind of mode is named to be illustrated：
Step S41 divides tobacco control area and region of escape according to image information；
According to pictorial information, the position of kitchen ventilator exhaust fume collecting hood 100 divides tobacco control area and region of escape.Wherein, tobacco control area is
The lower zone of exhaust fume collecting hood 100, region of escape are the front area 110 and arranged on left and right sides region of exhaust fume collecting hood 100.By pictorial information
After subregion, the sum of the gray value of tobacco control area and region of escape is calculated separately.
Step S42 calculates the sum of gray value of region of escape ∑ S1, calculates the sum of the gray value in tobacco control area ∑ S2, calculating and escapes
Ease rate η=∑ S1/ (∑ S1+ ∑ S2).
In pictorial information, the sum of gray value of region of escape ∑ S1, the sum of the gray value in tobacco control area ∑ S2, (∑ S1+ ∑ S2)
For the sum of gray scales all in pictorial information.By the way that the sum of gray value of region of escape ∑ S1 and gray value total in picture are divided by,
The exhaust gas volumn that the gray value for obtaining region of escape accounts for the ratio of total gray value namely region of escape is fled from, the ratio with total exhaust gas volumn.
In order to more accurately clearly illustrate the calculating of escapement ratio, below first specifically introduce the structure of range hood：Oil
Smoke machine includes exhaust fume collecting hood 100 and smoke machine rack 200, and exhaust fume collecting hood 100 is located at the lower section of smoke machine rack 200, smoke machine rack 200 it is upper
Side is provided with check-valves 300.Flue gas enters flue from exhaust fume collecting hood 100, by after smoke machine rack 200 from check-valves 300
Outlet flue discharge.By taking flue gas is arranged against wall as an example, the underface of smoke machine is arranged in cookware 400.Reference Fig. 5~Fig. 8,
In, Fig. 5 and Fig. 6 represent european style kitchen ventilator, and Fig. 7 and Fig. 8 represent nearly smoking machine.Fig. 5 and Fig. 7 is the front view of smoke machine, Fig. 6 and figure
8 be the lateral plan of smoke machine.Wherein, A1, A2, A3, A4 are region of escape, and B1, B2 are tobacco control area.A1 is exhaust fume collecting hood in front view
The region of 100 front sides, B1 are the region immediately below exhaust fume collecting hood 100, and A2 is the predeterminable area at left and right sides of B1.A3 is front view
The region of middle 100 front side of exhaust fume collecting hood, B2 are the region immediately below exhaust fume collecting hood 100, and A4 is the predeterminable area at the top of B2.
Below how to judge region of escape and described divide tobacco control area according to image information and the step of region of escape includes：
Obtain the profile of the exhaust fume collecting hood 100 of kitchen ventilator and the position of cooking stove；
The mode for obtaining 100 profile of exhaust fume collecting hood has very much, as user directly inputs shape information, the position of exhaust fume collecting hood 100
Information etc., can also be after Image Acquisition, before calculating gray value, and user inputs by data or describe the modes such as input,
Determine the profile of exhaust fume collecting hood 100.Similarly, determine can also be there are many mode, as user directly inputs for the position of cooking stove；
Can also after image acquisition, before calculating gray value, user inputs by data or describes the modes such as input；Certainly,
Can also according to the calculating of gray value (the maximum position of gray value, and towards direction up, gray value is gradually reduced), or
Shape compares to determine and (obtain shape and profile, be then compared with the profile prestored, judged whether according to the result of comparison
For cooking apparatus), certain exhaust fume collecting hood 100 can also determine in this way.
According to the position of the profile of exhaust fume collecting hood 100 and cooking stove, defining tobacco control area includes that exhaust fume collecting hood 100 covers cooking range
Has the region in direction, region of escape includes within the scope of the predeterminable area of the front side, left side and right side of 100 profile of exhaust fume collecting hood.It is worth saying
Bright, the judgement confirmation of region of escape is related to the shooting position of picture, is referring to A1, A2, A3, A4 in above example
Region of escape, B1, B2 are tobacco control area.
There are many ways to calculating, carries out simple illustration below：
The first defines the front side that concern face M includes exhaust fume collecting hood 100 to further increase the precision for calculating gray value
Face, left side and right side, the sum of described gray value for calculating region of escape ∑ S1, calculate the sum of the gray value in tobacco control area ∑
S2, calculate escapement ratio η=∑ S1/ (∑ S1+ ∑ S2) the step of include：
The sum of the gray value in 100 leading flank tobacco control area of exhaust fume collecting hood ∑ S2-1 is calculated, 100 left side tobacco control area of exhaust fume collecting hood is calculated
The sum of gray value ∑ S2-2, calculate the sum of the gray value in 100 right side tobacco control area of exhaust fume collecting hood ∑ S2-3, the gray value in tobacco control area
The sum of ∑ S2 be ∑ S2-1, ∑ S2-2, ∑ S2-3 sum；
Leading flank tobacco control area is the tobacco control area after acquiring image from leading flank in gained image, similarly, 100 left side of exhaust fume collecting hood
Face tobacco control area is the tobacco control area after acquiring image from left side in gained image, and 100 right side tobacco control area of exhaust fume collecting hood is from right side
Tobacco control area after face acquisition image in gained image.Leading flank tobacco control area is B1, due to the tobacco control area of left side and right side ash
Angle value is suitable, so first calculating one of them (right side tobacco control area is B2), then carries out relevant calculation processing again.When
So, in some embodiments, it can also be calculated separately to further improve precision, the tobacco control area of the left and right sides is respectively B2
And B3.
The sum of the gray value of 100 leading flank region of escape of exhaust fume collecting hood ∑ S1-1 is calculated, 100 left side region of escape of exhaust fume collecting hood is calculated
The sum of gray value ∑ S1-2, calculate the sum of gray value of 100 right side region of escape of exhaust fume collecting hood ∑ S1-3, the gray value of region of escape
The sum of ∑ S1 be ∑ S1-1, ∑ S1-2, ∑ S1-3 sum；
Leading flank region of escape is the region of escape after acquiring image from leading flank in gained image, similarly, 100 left side of exhaust fume collecting hood
Face region of escape is the region of escape after acquiring image from left side in gained image, and 100 right side region of escape of exhaust fume collecting hood is from right side
Region of escape after face acquisition image in gained image.Leading flank region of escape is A1 and A2, due to the escape of left side and right side
Area's gray value is suitable, so first calculating one of them (right side region of escape is A3 and A4), then carries out relevant calculation processing again
?.Certainly, in some embodiments, can also be calculated separately to further improve precision, the region of escape of the left and right sides
Respectively A3, A4 and A5, A6.
Calculate escapement ratio：
η=(∑ S1-1+ ∑ S1-2+ ∑ S1-3)/(∑ S1-1+ ∑ S1-2+ ∑ S1-3+ ∑ S2-1+ ∑ S2-2+ ∑ S2-
3)。
If the gray value with the left and right sides quite calculates, ∑ S1-2 and ∑ S1-3 (left and right sides region of escape) quite, ∑ S2-
2 is suitable with ∑ S2-3 (left and right sides area Kong Yi).
For specific smoke machine smoke pumping indexes of capability evaluation, a gray threshold can be set, risen to oil smoke or
Person drops to the time consumed by the threshold value to characterize fume-exhausting ability.For the meter of escapement ratio η=∑ S1/ (∑ S1+ ∑ S2)
It calculates, a certain photograph frame that ∑ S1 therein can choose certain particular moment is calculated, and also can choose being averaged in the period
As a result；Similarly, a certain photograph frame that ∑ S2 can also choose certain particular moment is calculated, and also can choose flat in the period
Result.
Second, in some embodiments, in order to quickly calculate place's gray value, the gray value for calculating region of escape it
With ∑ S1, the step of calculating the sum of the gray value ∑ S2 in tobacco control area, calculating escapement ratio η=∑ S1/ (∑ S1+ ∑ S2), includes：
The image information on multiple concerns face M is obtained during fume exhaust；
Calculate the sum of gray value of region of escape ∑ S1 in each image information；
The maximum value in the sum of multiple gray values ∑ S1 is obtained, and calculates corresponding ∑ S2；
It calculates escapement ratio η=∑ S1/ (∑ S1+ ∑ S2).
The gray value of the region of escape in multiple images is first calculated, reselection goes out maximum in the gray value of several region of escapes
Value calculates the gray value with the tobacco control area in the same image of the region of escape, and utilizes the escape sum of the grayscale values control in this image
Cigarette ash angle value calculates escapement ratio.This calculation does not need to calculate all tobacco control area gray values of multiple images, thus greatly
Width reduces the workload of calculating, to improve computational efficiency.
The third, in some embodiments, in order to improve computational accuracy, the sum of described gray value for calculating region of escape ∑
The step of S1 calculates the sum of gray value ∑ S2 in tobacco control area, calculates escapement ratio η=∑ S1/ (∑ S1+ ∑ S2) include：
The image information on multiple concerns face M is obtained during fume exhaust；
Calculate the average value of the sum of gray value of region of escape in multiple image informationsThe sum of with the gray value in tobacco control area
Average value
Calculate escapement ratio
Specifically, in the present embodiment, the tobacco control sum of the grayscale values escape gray value for calculating escapement ratio is participated in, is not directly with certain
One detected value calculates, but average value by the way that multiple detected values are calculated calculates.Concrete example is illustrated below,
In a certain period of time, 50 images have been continuously shot, then have calculated the gray value in tobacco control area all in 50 images, and have been summed
After be averaging, to obtainMeanwhile the gray value of region of escape all in 50 images is calculated, and be averaging after summing, with
It obtainsThen it utilizesWithCalculate escapement ratio.
It is worth noting that the embodiment, can be combined, i.e., with above embodimentCalculating need to consider
Leading flank tobacco control area, arranged on left and right sides face tobacco control area.We can first acquire the average value in each tobacco control area, then by each control
The conduct of the sum of average value of cigarette districtSimilarly,Calculating need to consider leading flank tobacco control area, arranged on left and right sides face escape
Area.We can first acquire the average value of each region of escape, then by the conduct of the sum of the average value of each region of escapeSeparately
Outside, the period of multiple images is acquired, can be some lampblack-pumped period of range hood, or range hood is taken out
The whole process of oil smoke acquires multiple images that is, with certain sample frequency during the entire process of smoke extractor.In this way, will have
Conducive to the precision for improving calculating escapement ratio.
In order to improve the accuracy of experiment and confirmation experiment, in experiment or confirmation stage, we control the parameter of experiment,
Further include before the step of acquisition of described image acquisition device shows the flue gas information on smooth surface N：
Quantitative edible oil aml is added in cooking pot tool 400；
When oil temperature rises to b DEG C, the normal-temperature water of cml is added, into cooking pot tool 400 to generate quantitative oil smoke.
In the present embodiment, mainly provide it is a kind of for test the method for oil smoke is provided.It is recommended that quantity of edible oil a=10~50ml,
Oil temperature b=200~400 DEG C, the amount c=10-50ml that normal-temperature water is added.Certainly, in other embodiments, edible oil in test
Amount plus the temperature of edible oil and the amount of water is added can cook tool and kitchen other conditions are adjusted according to actual when water
Section.
Key problem in technology point of the invention is, under camera and the matched situation of laser plane, to the oil in laser plane
The excessive ratio of cigarette distribution situation or time-consuming two methods are handled, and then obtain characterization effect of fume exhaust
Amount.A large amount of smoke particle can be generated during cooking follows flow field to move, when laser plane is illuminated flow field, due to
The scattering of smoke particle will generate different luminance fields under different particle concentrations, thus can be replaced with luminance field dense
Field is spent to characterize the oil smoke concentration in laser irradiation plane.First method is divided to region-of-interest, and Different Plane is used
The concentration proportion of (laser irradiation plane) interior different zones indicates the size of smoking ability, concentration can choose certain transient state when
It carves the concentration field of oil smoke, the mean concentration field in certain time can also be chosen.Second method is setting one concentration (ash
Degree) threshold value, with oil smoke rise to or drop to the threshold value consumed by the time characterize fume-exhausting ability.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, server, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (11)
1. a kind of image-pickup method of flue gas, which is characterized in that the image-pickup method of the flue gas includes the following steps：
Image capture instruction is obtained, concern face information is obtained according to image capture instruction；
According to the concern face information, the display smooth surface Chong Die with concern face is formed；
Image acquisition device shows the flue gas information in smooth surface.
2. the image-pickup method of flue gas as described in claim 1, which is characterized in that it is described according to the concern face information,
The step of forming Chong Die with concern face display smooth surface include：
Area, shape and the coordinate information in concern face are determined according to concern face information；
The position for generating the light source of display smooth surface is adjusted, so that display smooth surface is Chong Die with the concern face.
3. the image-pickup method of flue gas as claimed in claim 2, which is characterized in that the light source include light source body and at
Type cover；The light source body is set in the molding cover, and the molding cover offers out light to the side in the concern face
Gap, so that the light of the light source body forms the display smooth surface after going out light gap.
4. the image-pickup method of flue gas as claimed in claim 3, which is characterized in that the quantity of the light source be two, two
The light source is set to the opposite sides in the concern face, so that two display smooth surfaces are Chong Die with concern face.
5. the image-pickup method of flue gas as described in claim 1, which is characterized in that the acquisition display of described image acquisition device
The step of flue gas information in smooth surface includes：
The acquisition angles and focal length of image collecting device are adjusted, so that the collection surface of image collecting device is overlapped with display smooth surface.
6. the image-pickup method of flue gas as claimed in claim 5, which is characterized in that the focal length of image collecting device is described
In collection surface.
7. the image-pickup method of flue gas as described in claim 1, which is characterized in that it is described according to concern face information, it is formed
Further include before the step of Chong Die with concern face display smooth surface：
Obtain the quantity of liquid particles and the quantitative proportion of solid granulates in flue gas；
When the quantitative proportion of the droplet particles in the flue gas is more than or equal to preset ratio, the display smooth surface is white light
Face.
8. the image-pickup method of flue gas as described in claim 1, which is characterized in that it is described according to concern face information, it is formed
Further include before the step of Chong Die with concern face display smooth surface：
Obtain the quantity of liquid particles and the quantitative proportion of solid granulates in flue gas；
When the quantitative proportion of the solid granulates in the flue gas is more than or equal to preset ratio, the display smooth surface is coloured
Smooth surface.
9. the image-pickup method of flue gas as described in claim 1, which is characterized in that it is described according to concern face information, it is formed
Further include before the step of Chong Die with concern face display smooth surface：
Obtain the concentration of particle in flue gas；
When the concentration of particle in the flue gas is less than or equal to preset concentration, the display smooth surface is coloured smooth surface.
10. a kind of image collecting device of flue gas, which is characterized in that the image collecting device of the flue gas includes：Memory, place
Reason device and the image acquisition procedure for being stored in the flue gas that can be run on the memory and on the processor, the computer
The step of program realizes method as claimed in any one of claims 1-9 wherein when being executed by the processor.
11. a kind of computer readable storage medium, which is characterized in that be stored with flue gas on the computer readable storage medium
It realizes when the image acquisition procedure of image acquisition procedure, the flue gas is executed by processor such as any one of claims 1 to 9 institute
The step of image-pickup method for the flue gas stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810647837.3A CN108918368B (en) | 2018-06-20 | 2018-06-20 | Smoke image acquisition method and device and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810647837.3A CN108918368B (en) | 2018-06-20 | 2018-06-20 | Smoke image acquisition method and device and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108918368A true CN108918368A (en) | 2018-11-30 |
| CN108918368B CN108918368B (en) | 2022-03-11 |
Family
ID=64420979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810647837.3A Active CN108918368B (en) | 2018-06-20 | 2018-06-20 | Smoke image acquisition method and device and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108918368B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116824166A (en) * | 2023-08-29 | 2023-09-29 | 南方电网数字电网研究院有限公司 | Transmission line smoke identification method, device, computer equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104102164A (en) * | 2013-04-15 | 2014-10-15 | 无锡中科水质环境技术有限公司 | Kitchen detection control system and control method thereof |
| US20150339528A1 (en) * | 2014-05-20 | 2015-11-26 | Broan-Nutone Llc | Automated emissions capture determination |
| CN206532791U (en) * | 2017-03-20 | 2017-09-29 | 常州亿晶光电科技有限公司 | Solar panel bubble detection device |
| CN207336308U (en) * | 2017-07-07 | 2018-05-08 | 西石（厦门）科技有限公司 | Oil smoke concentration monitor is scattered after a kind of optics |
-
2018
- 2018-06-20 CN CN201810647837.3A patent/CN108918368B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104102164A (en) * | 2013-04-15 | 2014-10-15 | 无锡中科水质环境技术有限公司 | Kitchen detection control system and control method thereof |
| US20150339528A1 (en) * | 2014-05-20 | 2015-11-26 | Broan-Nutone Llc | Automated emissions capture determination |
| CN206532791U (en) * | 2017-03-20 | 2017-09-29 | 常州亿晶光电科技有限公司 | Solar panel bubble detection device |
| CN207336308U (en) * | 2017-07-07 | 2018-05-08 | 西石（厦门）科技有限公司 | Oil smoke concentration monitor is scattered after a kind of optics |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116824166A (en) * | 2023-08-29 | 2023-09-29 | 南方电网数字电网研究院有限公司 | Transmission line smoke identification method, device, computer equipment and storage medium |
| CN116824166B (en) * | 2023-08-29 | 2024-03-08 | 南方电网数字电网研究院股份有限公司 | Transmission line smoke identification method, device, computer equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108918368B (en) | 2022-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108534203A (en) | The evaluation method and device of range hood smoke pumping ability | |
| KR101728179B1 (en) | Ocular surface interferometry (osi) devices, systems and methods for imaging, processing, and/or displaying an ocular tear film and/or measuring ocular tear film layer thickness(es) | |
| Gao et al. | Determination of dynamic intake fraction of cooking-generated particles in the kitchen | |
| CN106716125B (en) | Nanoparticle analyzer | |
| Medina et al. | Comparative performance of five Mexican plancha-type cookstoves using water boiling tests | |
| CN110336954A (en) | Automatic light-supplementing adjusting method, system and storage medium | |
| CN110542133B (en) | Automatic suction adjusting method for range hood and range hood | |
| CN115330774B (en) | Welding image molten pool edge detection method | |
| CN108918368A (en) | Image-pickup method, device and the computer readable storage medium of flue gas | |
| CN209285469U (en) | A kind of image-forming assembly and portable xerophthalmia detection device | |
| EP3610199A1 (en) | Determining a degree of contamination in a cooking chamber | |
| CN110925818B (en) | Control method of range hood and range hood | |
| CN110398344A (en) | A kind of detection method, appliance arrangement and storage medium showing equipment backlight luminous board | |
| CN103149134A (en) | Welding dust monitoring method based on backlight image | |
| CN117055493A (en) | Intelligent full-automatic quality control system and method for ambient air monitoring | |
| CN115452334B (en) | Internal mask type coronagraph stray light measurement system and measurement method | |
| JP3995201B2 (en) | Method and program for predicting brightness | |
| CN209101364U (en) | A kind of kitchen ventilator with light compensating apparatus | |
| Hsieh | The energy-saving effect and prediction method under various illuminance distribution types | |
| CN211268335U (en) | Full-automatic moon cake baking device based on machine vision | |
| JPWO2012131892A1 (en) | Blood product quality inspection apparatus and method | |
| JP3800303B2 (en) | Discomfort glare evaluation device | |
| Zhang et al. | Make-up air optimization and demand exhaust rate of commercial kitchens under multiple cookers operation | |
| Ma et al. | Temperature-dependent particle number emission rates and emission characteristics during heating processes of edible oils | |
| Heck | The influence of wind on the structure of inclined flames |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |