CN107726399A - Cooking fume-collecting system, method and device - Google Patents
Cooking fume-collecting system, method and device Download PDFInfo
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- CN107726399A CN107726399A CN201711087047.6A CN201711087047A CN107726399A CN 107726399 A CN107726399 A CN 107726399A CN 201711087047 A CN201711087047 A CN 201711087047A CN 107726399 A CN107726399 A CN 107726399A
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- oil smoke
- controller
- image
- cooking fume
- sensor
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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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- Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention relates to intelligent kitchen technical field, more particularly to a kind of cooking fume-collecting system, method and device, the cooking fume-collecting system includes range hood and sensor, controller is installed in the range hood, the controller is connected with the sensor, and the cooking fume-collecting method and device is applied to the cooking fume-collecting system.The sensor is used to gather the oil smoke image in preset range and send the oil smoke image of collection to the controller, the controller is used to analyze the oil smoke image to obtain analysis result, while the inlet scoop for adjusting according to analysis result the range hood in real time turns to presumptive area to absorb oil smoke.This programme gathers oil smoke image by sensor in real time, controller is analyzed oil smoke image in real time, and then the inlet scoop of automatic control type kitchen ventilator turns to presumptive area, realizes the automatic detection of smokescope and automatically adjusting for air inlet of cooking-fume exhauster, improves user experience.
Description
Technical field
The present invention relates to intelligent kitchen technical field, in particular to a kind of cooking fume-collecting system, method and device.
Background technology
Present range hood is widely used in every family, and the range hood is mainly used in absorption oil during user's cooking
Cigarette.Its main operational principle is：Connect range hood power supply, motor so that wind wheel is made to rotate at a high speed, makes one above stove
Negative pressuren zone is formed in fixed spatial dimension, and then by inside the oil smoke suction range hood of interior.But existing current fume-exhausting
Machine is fixedly installed on wall, can not automatic sensing oil smoke concentration, can not adjust the position of air inlet of cooking-fume exhauster with
Preferably adsorb the oil smoke of high concentration.
The content of the invention
It is an object of the invention to provide a kind of cooking fume-collecting system, method and device, to realize that automatic detection oil smoke is dense
Spend size, and according to the position of the big minor adjustment inlet scoop of oil smoke concentration of detection to adsorb oil smoke.
To achieve these goals, the technical scheme that the embodiment of the present invention uses is as follows：
In a first aspect, the embodiments of the invention provide a kind of cooking fume-collecting system, the cooking fume-collecting system includes oil suction
Cigarette machine and sensor, controller is installed in the range hood, the sensor is connected with the controller, the sensor
For gathering the oil smoke image in preset range and sending the oil smoke image of collection to the controller；The controller
For being analyzed the oil smoke image to obtain analysis result；The controller is adjusted in real time always according to the analysis result
The inlet scoop of the range hood turns to presumptive area, to absorb oil smoke.
Second aspect, the embodiment of the present invention additionally provides a kind of cooking fume-collecting method, described applied to cooking fume-collecting system
Cooking fume-collecting system includes range hood and sensor, is provided with controller in the range hood, the sensor and described
Controller connects, and receives the oil smoke image that the sensor is sent, and the oil smoke image gathers preset range by the sensor
Interior oil smoke image is simultaneously sent to the controller；To the oil smoke graphical analysis to obtain analysis result；According to the analysis
The inlet scoop that the range hood is adjusted during fructufy turns to presumptive area, to absorb oil smoke.
The third aspect, the embodiment of the present invention additionally provides a kind of cooking fume-collecting device, described applied to cooking fume-collecting system
Cooking fume-collecting system includes range hood and sensor, is provided with controller in the range hood, the sensor and described
Controller connects, and described device includes receiving module, analysis module, adjustment module, wherein, receiving module is described for receiving
The oil smoke image that sensor is sent, the oil smoke image is by the oil smoke image in sensor collection preset range and sends extremely
The controller；Analysis module, for obtaining analysis result to the oil smoke graphical analysis；Adjustment module, for according to institute
The inlet scoop steering presumptive area that analysis result adjusts the range hood in real time is stated, to absorb oil smoke.
A kind of cooking fume-collecting system provided in an embodiment of the present invention, method and device, the cooking fume-collecting system include oil suction
Cigarette machine and sensor, controller is installed in the range hood, the controller is connected with the sensor, the cooking fume-collecting
Method and device is applied to the cooking fume-collecting system.The sensor is used to gather the oil smoke image in preset range and will adopt
The oil smoke image of collection is sent to the controller, and the controller is used to analyze to be divided the oil smoke image
Result is analysed, while the inlet scoop for adjusting according to analysis result the range hood in real time turns to presumptive area to absorb oil smoke.This
Scheme gathers oil smoke image by sensor in real time, and controller is analyzed oil smoke image in real time, and then automatically controls oil suction
The inlet scoop of cigarette machine turns to presumptive area, realizes the automatic detection of smokescope and the automatic tune of air inlet of cooking-fume exhauster
Section, improves user experience.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of structural representation of cooking fume-collecting system provided in an embodiment of the present invention.
Fig. 2 shows a kind of schematic flow sheet of cooking fume-collecting method provided in an embodiment of the present invention.
Fig. 3 shows a kind of schematic flow sheet of the sub-step of cooking fume-collecting method provided in an embodiment of the present invention.
Fig. 4 shows a kind of high-level schematic functional block diagram of cooking fume-collecting device provided in an embodiment of the present invention.
Diagram：10- cooking fume-collecting systems；100- sensors；200- range hoods；300- controllers；310- cooking fume-collectings
Device；311- receiving modules；312- analysis modules；313- adjustment modules.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be configured to arrange and design with a variety of herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.Meanwhile the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
With the improvement of living standards, range hood is also increasingly popularized, present range hood is mainly fixedly arranged on kitchen
Some position can adsorb oil smoke in time when cooking in order to user, while avoid oil smoke from flying away everywhere and be attached to other
On furniture so that furniture is damaged.But existing range hood can only passive adsorption oil smoke, it is impossible to automatic sensing oil smoke
Concentration, the position of the inlet scoop of range hood can not be adjusted in real time according to the concentration of oil smoke, lack of wisdom, user experience is not
It is good.
A kind of cooking fume-collecting system provided in an embodiment of the present invention, method and device energy automatic detection oil smoke, and can basis
The oil smoke concentration detected, the inlet scoop of range hood is adjusted in real time towards the high region of oil smoke concentration, quickly to absorb oil smoke.
Fig. 1 is refer to, is a kind of structural representation of cooking fume-collecting system 10 provided in an embodiment of the present invention, the oil smoke is received
Collecting system 10 includes sensor 100, range hood 200 and controller 300, and the controller 300 is installed on range hood 200
It is interior, while sensor 100 is connected with controller 200.
The sensor 100 is used to gather the oil smoke image in preset range, and the oil smoke image of collection is sent to control
Device 300.The sensor 100 can be wholely set with controller 300, can also be provided separately with controller 300.Implement in the present invention
In example, the sensor 100 is vision sensor, such as camera, moving camera, it is readily appreciated that, the sensor 100 can be with
The sensor of image can be gathered for other.
The controller 300 is analyzed to obtain analysis result the oil smoke image sent by sensor 100 of reception.Tool
Body is：Oil smoke image is divided into multiple images region by the controller 300, and counts all pixels point on each image-region
Grey decision-making, to obtain the gray scale total value of each image-region.And then the controller 300 chooses maximum in gray scale total value one
Gray scale total value is compared with the predetermined threshold value in the controller 300, if the gray scale total value is more than predetermined threshold value, gray scale is total
Value is set to the center of oil smoke image more than the image-region of predetermined threshold value.Then controller 300 adjusts the inlet scoop of range hood 200
The center of oil smoke image is turned to, to absorb oil smoke.
Actual use when, the sensor 100 gather the oil smoke image in presumptive area in real time, if the sensor 100 and
Controller 300 is provided separately, then the optional position that the sensor 100 can be positioned in kitchen according to being actually needed by user.This
Outside, the sensor 100 also sends the oil smoke image collected in real time to controller 300, and oil smoke image is analyzed by controller 300
Center of gravity, i.e. oil smoke image central point, with determine the sensor 100 detection in the range of oil smoke concentration highest place, together
When, the inlet scoop that controller 300 adjusts the range hood 200 in real time turns to oil smoke concentration highest place, to realize quick inhale
Oil smoke.By this programme automatic detection oil smoke concentration, and the inlet scoop steering oil smoke concentration of automatic control type kitchen ventilator 200 is high
Place, automatic absorbing oil smoke, intelligence degree is high, improves the experience sense of user.
Fig. 2 is refer to, is a kind of schematic flow sheet of cooking fume-collecting method provided in an embodiment of the present invention, the cooking fume-collecting
Method is applied to cooking fume-collecting system 10, and the cooking fume-collecting method includes：
Step S110, receives the oil smoke image that the sensor is sent, and the oil smoke image is gathered pre- by the sensor
Determine the oil smoke image in scope and send to the controller.
Step S120, the oil smoke image is analyzed to obtain analysis result.
Fig. 3 is refer to, is a kind of stream of the step S120 of cooking fume-collecting method provided in an embodiment of the present invention sub-step
Journey schematic diagram, step S120 include：
Step S121, the oil smoke image of reception is divided into multiple images region, and counts each described image area
The gray scale total value in domain.
Step S122, a maximum gray scale total value of the gray scale total value is chosen compared with predetermined threshold value, by described in
Gray scale total value love is set to the center of the oil smoke image more than the image-region of predetermined threshold value.
Step S130, the inlet scoop for adjusting the range hood in real time according to the analysis result turn to presumptive area, with
Absorb oil smoke.
Due to being had been described in cooking fume-collecting components of system as directed, will not be repeated here.
Fig. 4 is refer to, is a kind of high-level schematic functional block diagram of cooking fume-collecting device 310 provided in an embodiment of the present invention, should
Cooking fume-collecting device 310 is applied to cooking fume-collecting system 10, and the cooking fume-collecting device 310 includes receiving module 311, analysis module
312 and adjustment module 313, wherein：
Receiving module 311, the oil smoke image sent for receiving the sensor, the oil smoke image is by the sensor
Gather the oil smoke image in preset range and send to the controller.
In embodiments of the present invention, step S110 can be performed by receiving module 311.
Analysis module 312, for obtaining analysis result to the oil smoke graphical analysis.
In embodiments of the present invention, step S120~S122 can be performed by analysis module 312.
Adjustment module 313, the inlet scoop for adjusting the range hood in real time according to the analysis result turn to predetermined
Region, to absorb oil smoke.
In embodiments of the present invention, step S130 can be performed by adjustment module 313.
Due to being had been described in cooking fume-collecting system, will not be repeated here.
In summary, a kind of cooking fume-collecting system provided in an embodiment of the present invention, method and device, the cooking fume-collecting system
Including range hood and sensor, controller is installed in the range hood, the controller is connected with the sensor, should
Cooking fume-collecting method and device is applied to the cooking fume-collecting system.The sensor is used to gather the oil smoke figure in preset range
Picture simultaneously sends the oil smoke image of collection to the controller, and the controller is used to analyze the oil smoke image
To obtain analysis result, while the inlet scoop for adjusting according to analysis result the range hood in real time turns to presumptive area to absorb
Oil smoke.This programme gathers oil smoke image by sensor in real time, and controller is analyzed oil smoke image in real time, and then automatic control
The inlet scoop of range hood processed turns to presumptive area, realize smokescope automatic detection and air inlet of cooking-fume exhauster from
Dynamic regulation, improves user experience.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.It should be noted that：Similar label and letter exists
Similar terms is represented in following accompanying drawing, therefore, once being defined in a certain Xiang Yi accompanying drawing, is then not required in subsequent accompanying drawing
It is further defined and explained.
Claims (10)
1. a kind of cooking fume-collecting system, it is characterised in that the cooking fume-collecting system includes range hood and sensor, the suction
Controller is installed in lampblack absorber, the sensor is connected with the controller,
The sensor is used to gather the oil smoke image in preset range and send the oil smoke image of collection to the control
Device processed；
The controller is used to analyze to obtain analysis result the oil smoke image；
The inlet scoop that the controller adjusts the range hood always according to the analysis result in real time turns to presumptive area, to inhale
Receive oil smoke.
2. cooking fume-collecting system as claimed in claim 1, it is characterised in that the controller is additionally operable to the oil smoke image
Analyzed to obtain the center of the oil smoke image.
3. cooking fume-collecting system as claimed in claim 2, it is characterised in that the controller is additionally operable to the oil of reception
Cigarette image is divided into multiple images region, and counts the gray scale total value in each described image region；
The controller is additionally operable to choose a gray scale total value maximum in the gray scale total value compared with predetermined threshold value, will
The gray scale total value is set to the center of the oil smoke image more than the image-region of predetermined threshold value.
4. the cooking fume-collecting system as described in claim 1 or 3, it is characterised in that the controller is additionally operable to adjust institute in real time
The inlet scoop for stating range hood turns to the center of the oil smoke image, to absorb oil smoke.
5. cooking fume-collecting system as claimed in claim 1, it is characterised in that the sensor includes vision sensor.
A kind of 6. cooking fume-collecting method, it is characterised in that applied to cooking fume-collecting system, the cooking fume-collecting system includes oil suction
Cigarette machine and sensor, controller being installed in the range hood, the sensor connects with the controller,
The oil smoke image that the sensor is sent is received, the oil smoke image is by the oil smoke in sensor collection preset range
Image is simultaneously sent to the controller；
To the oil smoke graphical analysis to obtain analysis result；
The inlet scoop for adjusting the range hood in real time according to the analysis result turns to presumptive area, to absorb oil smoke.
7. cooking fume-collecting method as claimed in claim 6, it is characterised in that described to be analyzed the oil smoke image to obtain
Include to the step of analysis result：
The oil smoke image is analyzed to obtain the center of the oil smoke image.
8. cooking fume-collecting method as claimed in claim 7, it is characterised in that described to be analyzed to obtain to the oil smoke image
The step of center of the oil smoke image, includes：
The oil smoke image of reception is divided into multiple images region, and counts the gray scale total value in each described image region；
A maximum gray scale total value of the gray scale total value is chosen compared with predetermined threshold value, the gray scale total value is more than pre-
If the image-region of threshold value is set to the center of the oil smoke image.
9. cooking fume-collecting method as claimed in claim 7 or 8, it is characterised in that described to be adjusted in real time according to the analysis result
The inlet scoop for saving the range hood turns to presumptive area, includes the step of to absorb oil smoke：
The inlet scoop for adjusting the range hood in real time turns to the center of the oil smoke image, to absorb oil smoke.
10. a kind of cooking fume-collecting device, it is characterised in that applied to cooking fume-collecting system, the cooking fume-collecting system includes inhaling
Lampblack absorber and sensor, controller is installed in the range hood, the sensor connects with the controller, described device
Including：
Receiving module, the oil smoke image sent for receiving the sensor, the oil smoke image are gathered pre- by the sensor
Determine the oil smoke image in scope and send to the controller；
Analysis module, for obtaining analysis result to the oil smoke graphical analysis；
Adjustment module, the inlet scoop for adjusting the range hood in real time according to the analysis result turn to presumptive area, with
Absorb oil smoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711087047.6A CN107726399A (en) | 2017-11-07 | 2017-11-07 | Cooking fume-collecting system, method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711087047.6A CN107726399A (en) | 2017-11-07 | 2017-11-07 | Cooking fume-collecting system, method and device |
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| Publication Number | Publication Date |
|---|---|
| CN107726399A true CN107726399A (en) | 2018-02-23 |
Family
ID=61221762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711087047.6A Pending CN107726399A (en) | 2017-11-07 | 2017-11-07 | Cooking fume-collecting system, method and device |
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| Country | Link |
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| CN (1) | CN107726399A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028224A (en) * | 2018-09-29 | 2018-12-18 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator and oil smoke concentration detection method having light self-adaptive visual function |
| CN109028234A (en) * | 2018-09-29 | 2018-12-18 | 佛山市云米电器科技有限公司 | It is a kind of can be to the kitchen ventilator that level of smoke is identified |
| CN110762571A (en) * | 2018-07-27 | 2020-02-07 | 九阳股份有限公司 | Recipe recommendation method based on cooking oil smoke and range hood |
| CN111780191A (en) * | 2020-08-04 | 2020-10-16 | 合肥瑞纳通软件技术开发有限公司 | Control method of range hood with active smoke guide device |
| CN114183900A (en) * | 2021-12-09 | 2022-03-15 | 珠海格力电器股份有限公司 | Air conditioning system control method and device and air conditioning system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329708A (en) * | 2014-10-13 | 2015-02-04 | 宁波方太厨具有限公司 | Near suction type range hood |
| CN104501257A (en) * | 2014-12-23 | 2015-04-08 | 浙江大学宁波理工学院 | Automatic extractor hood speed regulating control method based on image analysis and automatic extractor hood speed regulating control system based on image analysis |
-
2017
- 2017-11-07 CN CN201711087047.6A patent/CN107726399A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329708A (en) * | 2014-10-13 | 2015-02-04 | 宁波方太厨具有限公司 | Near suction type range hood |
| CN104501257A (en) * | 2014-12-23 | 2015-04-08 | 浙江大学宁波理工学院 | Automatic extractor hood speed regulating control method based on image analysis and automatic extractor hood speed regulating control system based on image analysis |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762571A (en) * | 2018-07-27 | 2020-02-07 | 九阳股份有限公司 | Recipe recommendation method based on cooking oil smoke and range hood |
| CN110762571B (en) * | 2018-07-27 | 2021-09-10 | 九阳股份有限公司 | Recipe recommendation method based on cooking oil smoke and range hood |
| CN109028224A (en) * | 2018-09-29 | 2018-12-18 | 佛山市云米电器科技有限公司 | A kind of kitchen ventilator and oil smoke concentration detection method having light self-adaptive visual function |
| CN109028234A (en) * | 2018-09-29 | 2018-12-18 | 佛山市云米电器科技有限公司 | It is a kind of can be to the kitchen ventilator that level of smoke is identified |
| CN109028234B (en) * | 2018-09-29 | 2020-11-10 | 佛山市云米电器科技有限公司 | Range hood capable of identifying smoke grade |
| CN111780191A (en) * | 2020-08-04 | 2020-10-16 | 合肥瑞纳通软件技术开发有限公司 | Control method of range hood with active smoke guide device |
| CN111780191B (en) * | 2020-08-04 | 2023-03-03 | 合肥瑞纳通软件技术开发有限公司 | Control method of range hood with active smoke guide device |
| CN114183900A (en) * | 2021-12-09 | 2022-03-15 | 珠海格力电器股份有限公司 | Air conditioning system control method and device and air conditioning system |
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Application publication date: 20180223 |