CN115568770A

CN115568770A - Intelligent heating control method, device, equipment and medium for oven

Info

Publication number: CN115568770A
Application number: CN202211355119.1A
Authority: CN
Inventors: 殷春华; 肖修衍
Original assignee: Guangdong Haixin Intelligent Kitchen Co ltd
Current assignee: Guangdong Haixin Intelligent Kitchen Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-01-06

Abstract

The invention discloses an intelligent heating control method, an intelligent heating control device, intelligent heating control equipment and intelligent heating control media for an oven, wherein the method comprises the following steps: and judging whether the acquired temperature detection value is greater than a preset temperature threshold value, if so, receiving the acquired initial image and judging whether the initial image meets the image detection condition, if so, receiving oil smoke detection information and judging whether the oil smoke detection information meets the oil smoke detection condition, and if so, acquiring heating control information corresponding to the initial image and the oil smoke detection information and adjusting the heating power of the oven. According to the intelligent heating control method for the oven, if the temperature detection value is judged to be too high, the initial image and the oil smoke detection information are obtained, the corresponding heating control information is obtained according to the initial image and the oil smoke detection information, the oven heating power is adjusted automatically according to the initial image and the oil smoke detection information, food materials are prevented from being burnt, and the automation degree of oven heating control is improved.

Description

Intelligent heating control method, device, equipment and medium for oven

Technical Field

The invention relates to the technical field of intelligent control, in particular to an intelligent heating control method, device, equipment and medium for an oven.

Background

The oven is widely applied as a household appliance, and if the temperature of the oven is improperly controlled in the process of heating food materials, the food materials are easily scorched and lampblack is generated due to overheating, so that the taste of the baked food materials is influenced; in the use process of the oven in the prior art, whether food is scorched can be judged only by monitoring by a user, and if the user forgets to check and timely adjusts the heating temperature, the food material is scorched easily due to overhigh heating temperature. Therefore, the oven in the prior art method has the problem that the heating temperature cannot be automatically adjusted to avoid burning of the food materials.

Disclosure of Invention

The embodiment of the invention provides an intelligent heating control method, device, equipment and medium for an oven, and aims to solve the problem that the oven in the technical method cannot automatically adjust the heating temperature to avoid burning of food materials.

In a first aspect, an embodiment of the present invention provides an intelligent heating control method for an oven, where the method is applied to a controller of the oven, and the oven further includes an image acquisition device, a temperature detection device, and an oil smoke detection device, which are in communication connection with the controller; the method comprises the following steps:

if a temperature detection value from the temperature detection device is received, judging whether the temperature detection value is larger than a preset temperature threshold value;

if the temperature detection value is larger than the preset temperature threshold value, receiving an initial image acquired by the image acquisition device;

detecting whether the initial image meets preset image detection conditions or not to obtain a corresponding image detection result;

if the image detection result is yes, receiving oil smoke detection information collected by the oil smoke detection device;

detecting whether the oil smoke detection information meets preset oil smoke detection conditions to obtain a corresponding oil smoke detection result;

if the oil smoke detection result is yes, heating control information corresponding to the initial image and the oil smoke detection information is obtained according to a preset heating configuration rule, and the heating power of the oven is adjusted according to the heating control information.

In a second aspect, an embodiment of the present application further provides an intelligent heating control device for an oven, where the device is configured in a controller of the oven, and the oven further includes an image acquisition device, a temperature detection device, and an oil smoke detection device, which are in communication connection with the controller; the device comprises:

the temperature detection value judging unit is used for judging whether the temperature detection value is larger than a preset temperature threshold value or not if the temperature detection value from the temperature detection device is received;

the initial image acquisition unit is used for receiving an initial image acquired by the image acquisition device if the temperature detection value is greater than the preset temperature threshold value;

the image detection result acquisition unit is used for detecting whether the initial image meets preset image detection conditions to obtain a corresponding image detection result;

the oil smoke detection information receiving unit is used for receiving the oil smoke detection information collected by the oil smoke detection device if the image detection result is positive;

the oil smoke detection result acquisition unit is used for detecting whether the oil smoke detection information meets preset oil smoke detection conditions to obtain a corresponding oil smoke detection result;

and the heating control information acquisition unit is used for acquiring heating control information corresponding to the initial image and the oil smoke detection information according to a preset heating configuration rule and adjusting the heating power of the oven according to the heating control information if the oil smoke detection result is positive.

In a third aspect, an embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the processor implements the intelligent heating control method for an oven described in the first aspect.

In a fourth aspect, the present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, causes the processor to execute the intelligent heating control method for an oven according to the first aspect.

The embodiment of the invention provides an intelligent heating control method, an intelligent heating control device, intelligent heating control equipment and an intelligent heating control medium for an oven, wherein the method comprises the following steps: and judging whether the acquired temperature detection value is greater than a preset temperature threshold value, if so, receiving the acquired initial image and judging whether the initial image meets the image detection condition, if so, receiving oil smoke detection information and judging whether the oil smoke detection information meets the oil smoke detection condition, and if so, acquiring heating control information corresponding to the initial image and the oil smoke detection information and adjusting the heating power of the oven. According to the intelligent heating control method for the oven, if the temperature detection value is judged to be too high, the initial image and the oil smoke detection information are obtained, the corresponding heating control information is obtained according to the initial image and the oil smoke detection information, the oven heating power is adjusted automatically according to the initial image and the oil smoke detection information, food materials are prevented from being burnt, and the automation degree of oven heating control is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a flowchart illustrating a method of an intelligent heating control method for an oven according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating a sub-method of a smart heating control method for an oven according to an embodiment of the present invention;

FIG. 3 is a flowchart of another sub-method of a smart heating control method for an oven according to an embodiment of the present invention;

FIG. 4 is a flowchart illustrating a method for controlling intelligent heating of an oven according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating a further sub-method of a smart heating control method for an oven according to an embodiment of the present invention;

FIG. 6 is a flowchart illustrating a method for controlling smart heating of an oven according to an embodiment of the present invention;

FIG. 7 is a flowchart of yet another method of a smart heating control method for an oven provided in accordance with an embodiment of the present invention;

fig. 8 is an overall structural view of an oven provided in an embodiment of the present invention;

fig. 9 is another overall structural view of the oven provided by the embodiment of the present invention;

fig. 10 is a side structure view of the lampblack detection device provided by the embodiment of the invention;

fig. 11 is another side structure view of the lampblack detection device provided by the embodiment of the invention;

fig. 12 is a cross-sectional structure view of the lampblack detection device provided by the embodiment of the invention;

fig. 13 is a partial structure view of the lampblack detection device provided by the embodiment of the invention;

fig. 14 is a schematic overall circuit diagram of the oil smoke detection device provided in the embodiment of the present invention;

fig. 15 is a schematic block diagram of an intelligent heating control device for an oven provided by an embodiment of the present invention;

fig. 16 is a schematic block diagram of a computer device provided in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1 and 14, as shown in the figures, the embodiment of the present invention discloses an intelligent heating control method for an oven, which is applied to a controller 23 of the oven for intelligent heating control of the oven according to the above embodiment, the controller 23 is electrically connected to an image acquisition device 28, a temperature detection device 29, and a lampblack detection device 24 which are arranged in the oven, the controller 23 is further specifically connected to a setting assembly 22 and a heating assembly 12, the controller 23 is electrically connected to an emission lamp 245, a second light receiver 247, and a flow rate sensor 248 which are arranged in the lampblack detection device 24, respectively, wherein the setting assembly 22 is used for inputting setting information, the heating assembly 12 is used for generating heat and heating food materials, and the image acquisition device 28 is used for shooting the inside of the oven downwards to obtain an initial image; the temperature detection device 29 is used for detecting the temperature inside the oven to obtain a temperature detection value; the emitting lamp 245 is used for emitting light, the second light receiver 247 is used for collecting light intensity change information when oil smoke is generated in the purifying cavity, and the controller 23 is used for receiving a temperature detection value, an initial image and the oil smoke detection information and correspondingly obtaining heating control information so as to automatically adjust the heating power of the oven. As shown in FIG. 1, the intelligent heating control method for the oven includes steps S110 to S160.

S110, if a temperature detection value from the temperature detection device is received, whether the temperature detection value is larger than a preset temperature threshold value is judged.

And if the temperature detection value from the temperature detection device is received, judging whether the temperature detection value is greater than a preset temperature threshold value. The controller can receive a temperature detection value from the temperature detection device, the temperature detection value is the temperature at the top of the heating cavity 11 in the oven, and can judge whether the temperature detection value is greater than a preset temperature threshold value, and the preset temperature threshold value is a temperature condition for triggering automatic adjustment of heating power. And if the temperature detection value obtained by judgment is not greater than the preset temperature threshold value, continuously obtaining the temperature detection value at the next moment and judging again.

For example, the temperature threshold is set to 120 ℃, and when the temperature detection value is greater than 120 ℃, it is determined that the temperature detection value is greater than the preset temperature threshold, that is, the automatic adjustment of the heating power is triggered.

And S120, receiving an initial image acquired by the image acquisition device if the temperature detection value is greater than the preset temperature threshold value.

And if the temperature detection value is larger than the preset temperature threshold value, receiving an initial image acquired by the image acquisition device. If the temperature detection value is larger than the preset temperature threshold value, receiving an initial image acquired by the image acquisition device, wherein the initial image comprises the image information of the food material and the image information of the periphery of the food material.

S130, detecting whether the initial image meets preset image detection conditions to obtain a corresponding image detection result.

And detecting whether the initial image meets preset image detection conditions to obtain a corresponding image detection result. Whether the initial image meets the image detection condition can be detected, so that an image detection result is obtained, wherein the image detection condition is specific condition information for detecting and judging the initial image.

In one embodiment, as shown in fig. 2, step S130 includes sub-steps S131, S132, S133 and S134.

S131, performing edge dissolving on the initial image according to an edge dissolving rule of the image detection condition.

Specifically, in the process of detecting the initial image, the initial image needs to be cut to separate a foreground image and a background image from the initial image, where the foreground image is an image corresponding to the food material, and the background image is image information of other areas except the food material. The edge dissolving of the initial image can be carried out through an edge dissolving rule, specifically, pixels at the outer edge of the initial image can be obtained, the pixels at the outer edge of the initial image are also basic pixels for edge dissolving, and the pixels at the outer edge of the initial image are all in the range of pixels needing dissolving; calculating the mean value of the pixel values of the pixels at the outer edge of the initial image, then judging the difference between the pixel values of the pixels adjacent to the pixels at the outer edge of the initial image and the mean value of the pixel values, judging whether the difference is not greater than the difference threshold of the edge dissolving rule, and if not, adding the pixel value into the pixel range needing dissolving; if so, the pixel value is not added to the range of pixels that need to be dissolved.

Wherein, the difference degree can be calculated by formula (1):

（1）；

c is the calculated difference degree, x ₁ 、x ₂ And x ₃ I.e. the RGB pixel value r of the pixel point adjacent to the outer edge pixel of the initial image ₁ 、r ₂ And r ₃ I.e. the average of the RGB pixel values of the outer edge pixels of the initial image.

After the pixel values of the pixel points adjacent to the pixels on the outer edge of the initial image are all processed, the mean value of the pixel values in the updated pixel range can be recalculated, and the pixel points adjacent to the pixel points in the updated pixel range are processed again, so that the pixel range needing to be dissolved is updated again until the difference degree between the pixel points adjacent to the pixel points in the latest pixel range and the latest pixel value mean value is greater than the difference degree threshold value, and the latest pixel range is determined to be the edge range needing to be subjected to pixel dissolution.

S132, cutting the initial image into a foreground image and a background image according to the edge dissolving result.

And cutting the initial image into a foreground image and a background image according to the result of edge dissolution, namely performing edge dissolution on the initial image according to the finally determined pixel range, namely determining the pixel range left after the pixel dissolution as the foreground image, and cutting the initial image to remove the foreground image, so as to obtain the background image.

And S133, obtaining pixel characteristic difference information between the foreground image and the background image.

And further acquiring pixel characteristic difference information between the foreground image and the background image. Specifically, the foreground image correspondingly includes first pixel characteristic information, and the first pixel characteristic information can be used for representing the pixel characteristics of the foreground image; the background image correspondingly comprises second pixel characteristic information, and the second pixel characteristic information can be used for representing the pixel characteristics of the background image. And obtaining the difference between the first pixel characteristic information and the second pixel characteristic information to obtain pixel characteristic difference information, wherein the pixel characteristic difference information can be used for representing the difference characteristics of the foreground image and the background image on the pixels.

In one embodiment, as shown in fig. 4, step S133 includes substeps S1331, S1332 and S1333.

And S1331, counting the pixels contained in the foreground image to obtain corresponding first pixel characteristic information, wherein the first pixel characteristic information comprises a pixel maximum value, a pixel minimum value, a pixel mean value and a pixel variance.

Specifically, the pixel values of the pixels included in the foreground image can be obtained, the pixel values of the pixels in the foreground image are counted to obtain information related to the characteristics of the pixels, such as a pixel maximum value, a pixel minimum value, a pixel mean value, a pixel variance and the like, and the first pixel characteristic information of the foreground image can be obtained by combining the values.

And S1332, counting the pixels contained in the background image to obtain corresponding second pixel characteristic information, wherein the second pixel characteristic information comprises a pixel maximum value, a pixel minimum value, a pixel mean value and a pixel variance.

Similarly, the pixel values of the pixels included in the background image can be obtained, and the pixel values of the pixels in the background image are counted to obtain second pixel characteristic information including a pixel maximum value, a pixel minimum value, a pixel mean value and a pixel variance.

And S1333, obtaining differences between the numerical values in the first pixel characteristic information and the numerical values in the second pixel characteristic information to obtain the difference characteristic information.

And subtracting each item of numerical value in the first pixel characteristic information from each item of numerical value in the second pixel characteristic information to obtain the difference value of each item of numerical value, namely the difference characteristic information.

S134, judging whether the pixel characteristic difference information is in the difference interval of the image detection condition, and obtaining an image detection result whether the initial image meets the image detection condition.

The image detection condition also comprises a difference interval corresponding to each numerical value, whether each numerical value in the pixel characteristic difference information is within the range of the corresponding difference interval can be judged, and if the numerical values in the pixel characteristic difference information are within the corresponding difference interval, the initial image is judged to meet the image detection condition; and if any numerical value in the pixel characteristic difference information is not positioned in the corresponding difference interval, judging that the initial image does not meet the image detection condition.

In a specific embodiment, as shown in fig. 3, step S133 further includes steps S1301 and S1302.

And S1301, obtaining regional pixel feature information of the foreground image.

Further, regional pixel feature information of the foreground image can be obtained, specifically, the image detection condition further includes a feature pixel proportion, and a part of pixels can be cut out from the foreground image as target pixels according to the feature pixel proportion. Specifically, the pixels may be sorted from high to low according to the pixel values of the pixels in the foreground image, and a front segment of partial pixels may be extracted from the sorted pixels according to the characteristic pixel proportion as target pixels.

For example, if the characteristic pixel proportion is 20%, the front 20% of pixels are extracted from the sorted pixels as the target pixels.

Further, adjacent pixels in the feature pixels are combined to form a feature pixel region, and then the feature pixels are combined to obtain at least one feature pixel region, and the obtained pixel feature information of the feature pixel region is also the region pixel feature information. The regional pixel feature information includes information such as the number of the feature pixel regions, the average coverage area of the feature pixel regions, the coverage area of the feature pixel region with the largest area, and the pixel mean value and the pixel variance of the pixels included in the feature pixel region.

S1302, judging whether the area pixel feature information is located in the feature interval of the image detection condition and whether the pixel feature difference information is located in the difference interval of the image detection condition, and obtaining an image detection result whether the initial image meets the image detection condition.

The image detection condition also comprises characteristic areas which respectively correspond to all the numerical values in the area pixel characteristic information, and whether all the numerical values in the area pixel characteristic information are all positioned in the corresponding characteristic areas can be judged, and meanwhile, whether all the numerical values in the pixel characteristic difference information are all positioned in the corresponding difference intervals can be judged. If all numerical values in the area pixel characteristic information are located in the corresponding characteristic area and all numerical values in the pixel characteristic difference information are located in the corresponding difference interval, judging that the initial image meets the image detection condition; otherwise, judging that the initial image does not meet the image detection condition.

And S140, receiving oil smoke detection information collected by the oil smoke detection device if the image detection result is positive.

And if the image detection result is yes, receiving the oil smoke detection information collected by the oil smoke detection device. If the image detection result is yes, the oil smoke detection information collected by the oil smoke detection device can be received, specifically, the oil smoke detection information includes flow rate variation information sensed by the flow rate sensor 248 and light intensity variation information sensed by the second light receiver 247. If the image detection result is negative, the initial image at the next moment is continuously acquired, and the step S130 is executed again.

S150, detecting whether the oil smoke detection information meets preset oil smoke detection conditions to obtain a corresponding oil smoke detection result.

And detecting whether the oil smoke detection information meets preset oil smoke detection conditions to obtain a corresponding oil smoke detection result. The method can further judge whether the oil smoke detection information meets the oil smoke detection condition or not so as to obtain an oil smoke detection result, specifically, the oil smoke detection condition comprises threshold values respectively corresponding to all numerical values in the oil smoke detection information, and the method can judge whether all numerical values in the oil smoke detection information exceed the corresponding threshold values so as to obtain the oil smoke detection result.

In one embodiment, as shown in fig. 5, step S150 includes sub-steps S151, S152, and S153.

And S151, judging whether the flow rate change rate in the oil smoke detection information is higher than a first threshold value of the oil smoke detection condition.

The flow rate change rate can be obtained from the oil smoke detection information, and whether the flow rate change rate is higher than the first threshold of the oil smoke detection condition is judged, specifically, if the flow rate change rate is increased (under the condition that the output power of the fan 244 is not changed), it indicates that a large amount of oil smoke is adsorbed in the upper period of the filtering membrane 242 at the moment, and the resistance of the airflow flowing through the filtering membrane 242 is obviously increased, and it indicates that the amount of the oil smoke generated in the oven is too large at the moment.

For example, a first flow rate value sensed by flow rate sensor 248 before 10 seconds, which may be in m/s, may be obtained, and a second flow rate value sensed by flow rate sensor 248 at the current time may be obtained, and the difference between the first flow rate value and the second flow rate value per unit time (10 seconds) may be calculated to obtain the flow rate change rate. And judging whether the flow rate change rate is higher than a first threshold value in the oil smoke detection condition.

And S152, judging whether the light intensity change rate in the oil smoke detection information is higher than a second threshold value of the oil smoke detection condition.

Meanwhile, the light intensity change rate can be obtained from the oil smoke detection information, and whether the light intensity change rate is higher than a second threshold value of the oil smoke detection condition or not is judged, specifically, if the light intensity change rate is increased (under the condition that the emission power of the emission lamp 245 is not changed), it indicates that a large amount of oil smoke from the heating cavity 11 is sucked into the purification cavity 241 at the moment, and it also indicates that the amount of oil smoke generated in the oven is too large at the moment.

For example, a first light intensity sensed by the second light receiver 247 before 10 seconds, which may be in cd, may be obtained, and a second light intensity sensed by the second light receiver 247 at the current time may be obtained, and a difference between the first light intensity and the second light intensity per unit time (10 seconds) may be calculated to obtain a rate of change in light intensity. And judging whether the light intensity change rate is higher than a second threshold value in the oil smoke detection condition.

S153, if the flow rate change rate is higher than the first threshold value or the light intensity change rate is higher than the second threshold value, obtaining the oil smoke detection result that the oil smoke detection information meets the oil smoke detection condition.

And if the flow rate change rate is higher than a first threshold value or the light intensity change rate is higher than a second threshold value, obtaining the oil smoke detection result that the oil smoke detection information meets the oil smoke detection condition. If the flow rate change rate is not higher than the first threshold and the light intensity change rate is not higher than the second threshold, the process returns to step S151 and step S152 to continuously monitor and determine the flow rate change rate and the light intensity change rate.

And S160, if the oil smoke detection result is yes, acquiring heating control information corresponding to the initial image and the oil smoke detection information according to a preset heating configuration rule, and adjusting the heating power of the oven according to the heating control information.

If the oil smoke detection result is yes, heating control information corresponding to the initial image and the oil smoke detection information is obtained according to a preset heating configuration rule, and the heating power of the oven is adjusted according to the heating control information. If the oil smoke detection result is yes, it indicates that a part of the area of the food material in the oven is burned and generates a large amount of oil smoke, and the heating power of the oven needs to be correspondingly adjusted. Specifically, heating control information corresponding to the initial image and the oil smoke detection information may be obtained according to the heating configuration rule, and a corresponding control instruction may be sent to the heating component 12 according to the heating control information, so as to achieve the purpose of adjusting the heating power of the oven.

In one embodiment, as shown in fig. 6, step S160 includes sub-steps S161, S162 and S163.

And S161, acquiring corresponding combined characteristic information from the initial image and the oil smoke detection information.

Specifically, the corresponding combined feature information may be obtained from the initial image and the oil smoke detection information, and the combined feature information is a combined feature obtained by combining the features in the initial image and the features in the oil smoke detection information.

In one embodiment, as shown in fig. 7, step S161 includes sub-steps S1611 and S1612.

And S1611, obtaining regional pixel characteristic information of the foreground image.

Specifically, the regional pixel feature information of the foreground image may be obtained, where the regional pixel feature information includes information such as the number of the feature pixel regions, an average coverage area of the feature pixel regions, a coverage area of the feature pixel region with the largest area, and a pixel mean value and a pixel variance of pixels included in the feature pixel region.

S1612, combining the region pixel characteristic information with the flow rate change rate and the light intensity change rate in the oil smoke detection information to obtain the combined characteristic information.

And combining the obtained regional pixel characteristic information with the flow rate change rate and the light intensity change rate in the oil smoke detection information to obtain corresponding combined characteristic information.

And S162, acquiring a heating control level matched with the combined characteristic information from the heating configuration rule.

And acquiring the heating control grade matched with the combined characteristic information from the heating configuration rule. The heating configuration rule comprises heating levels respectively corresponding to different characteristic value ranges, and each characteristic value in the combined characteristic information can be matched with the characteristic value range corresponding to different heating levels, so that the heating level of each characteristic value contained in a certain heating level characteristic value range is obtained and used as a matched heating control level. The combined characteristic information comprises area pixel characteristic information, flow rate change rate and light intensity change rate.

Specifically, the feature coefficient corresponding to the region pixel feature information in the combined feature information may be obtained through a conversion formula in the heating configuration rule, the corresponding adjustment coefficient is obtained through calculation based on an adjustment formula in the heating configuration rule, and then a heating level matched with the adjustment coefficient in the heating configuration rule is obtained as a corresponding heating control level.

If the number of the characteristic pixel regions in the combined characteristic information is 3, the average coverage area of the characteristic pixel regions is 217 pixels, the coverage area of the characteristic pixel region with the largest area is 460 pixels, the pixel mean value of the pixels included in the characteristic pixel region is (35, 26, 48), and the pixel variance is 1239, the corresponding characteristic coefficient can be calculated by the conversion formula: k =217 × 460/(3 × 1239+ (35 +26+ 48)) =0.2464.

Then, the corresponding adjusting coefficient can be obtained by calculating and calculating through an adjusting formula:

specifically, the adjustment coefficient can be expressed by equation (2):

（2）；

wherein k is a characteristic coefficient, m is a light intensity change rate, n is a flow velocity change rate, and e is a natural logarithm base number.

When k is 0.2464, m is 0.45, and n is 0.012, the calculated adjustment coefficient p is 0.7451.

For example, the adjustment coefficient range for the first heating level is 0.9 (excluded) -2, the adjustment coefficient range for the second heating level is 0.8 (excluded) -0.9, the adjustment coefficient range for the third heating level is 0.65 (excluded) -0.8, the adjustment coefficient range for the fourth heating level is 0.5 (excluded) -0.65, and the adjustment coefficient range for the fifth heating level is 0-0.5. The heating control level corresponding to the adjustment coefficient p =0.7451 is the third heating level.

And S163, generating corresponding heating control information according to the heating control level.

And acquiring a control strategy corresponding to the heating control grade, and correspondingly generating heating control information.

If the control strategy corresponding to the first heating level is to reduce the power by 20%, the control strategy corresponding to the second heating level is to reduce the power by 40%, the control strategy corresponding to the third heating level is to reduce the heating power by 60%, the control strategy corresponding to the fourth heating level is to reduce the power by 80%, and the control strategy corresponding to the fifth heating level is to turn off the heating. When the heating control level is the third heating level, the correspondingly generated heating control information is that the heating power is reduced by 60%. The controller may issue corresponding control commands to the heating assembly 12 based on the generated heating control information.

The intelligent heating control method for the oven in the embodiment of the invention judges whether the acquired temperature detection value is greater than a preset temperature threshold value, receives the acquired initial image and judges whether the initial image meets the image detection condition if the temperature detection value is greater than the preset temperature threshold value, receives the oil smoke detection information and judges whether the oil smoke detection information meets the oil smoke detection condition if the image detection result is yes, and acquires the heating control information corresponding to the initial image and the oil smoke detection information and adjusts the heating power of the oven if the oil smoke detection result is yes. According to the intelligent heating control method for the oven, if the temperature detection value is judged to be too high, the initial image and the oil smoke detection information are obtained, the corresponding heating control information is obtained according to the initial image and the oil smoke detection information, the oven heating power is adjusted automatically according to the initial image and the oil smoke detection information, food materials are prevented from being burnt, and the automation degree of oven heating control is improved.

Referring to fig. 8 to 14, as shown in the drawings, an embodiment of the present invention discloses an oven to which the intelligent heating control method according to the above embodiment can be applied, the oven includes an oven body 10 and a control assembly 20 disposed at one side of the oven body 10; the box body 10 is hollow to form a heating cavity 11; the bottom of the heating cavity 11 is provided with a heating assembly 12; the control assembly 20 comprises a shell 21 connected with the box body 10, a setting assembly 22 arranged outside the shell 21, a controller 23 arranged in the shell 21 and a lampblack detection device 24 arranged at the rear side of the shell 21; the lampblack detection device 24 comprises a purification cavity 241, a filter membrane 242 arranged in the purification cavity 241 and a collection box 243 arranged on the lower side of the purification cavity 241; an upper end opening of the purification cavity 241 is communicated with the top of the heating cavity 11 through an air duct, and a side end opening of the purification cavity 241 is communicated with one side of the heating cavity 11 through an air duct, so that self-circulation between the purification cavity 241 and the heating cavity 11 is realized; a fan 244 is arranged at an opening at the side end of the purifying cavity 241, and the filter membrane 242 is arranged between the fan 244 and an opening at the upper end of the purifying cavity 241; meanwhile, the top of the heating cavity 11 is provided with an image acquisition device 28 and a temperature detection device 29, and both the image acquisition device 28 and the temperature detection device 29 are electrically connected with the controller 23; at least one group of grill placing assemblies 13 are arranged on the side wall of the heating cavity 11, one group of grill placing assemblies 13 comprise two strip-shaped protrusions 131 which are oppositely arranged on the side walls of the two sides of the heating cavity 11, and grills 14 are placed on the grill placing assemblies 13; the controller 23 is electrically connected to the setting component 22, the heating component 12 and the fan 244 respectively, and the controller 23 receives the setting information input by the setting component 22 and controls the heating component 12 and the fan 244 to work according to the setting information; an emission lamp 245 and a first light receiver 246 are respectively arranged on two sides of the filtering membrane 242, the emission lamp 245 and the first light receiver 246 are respectively arranged on two opposite side walls of the purifying cavity 241, a second light receiver 247 and the emission lamp 245 are arranged on the same side of the filtering membrane 242, and the second light receiver 247 is arranged on the side wall of the purifying cavity 241; the emission lamp 245, the first light receiver 246, and the second light receiver 247 are electrically connected to the controller 23.

The heating chamber 11 has a grill placement assembly 13 disposed on a side wall thereof for placing a grill 14 thereon. The upper end opening of the purifying cavity 241 is communicated with the top of the heating cavity 11 through an air duct, the side end opening of the purifying cavity 241 is communicated with one side of the heating cavity 11 through an air duct, in the heating process of the oven, hot air flows upwards, oil smoke is carried in the hot air and is transmitted to the purifying cavity 241 through the air duct of the heating cavity 11, the oil smoke is absorbed and filtered through a filtering membrane 242 arranged in the purifying cavity 241, the filtering membrane 242 filters the oil smoke to obtain oil smoke-free air, and the oil smoke-free air is transmitted back to the heating cavity through the air duct by a fan 244. Drive so that the air current circulates between purification cavity 241 and heating chamber 11 through fan 244, avoid getting rid of the oil smoke and influence the heating temperature in the oven through outside cold air, filter the oil smoke in the circulating air current through filtration membrane. The oil residue in the filtering membrane flows downwards under the action of gravity, and the collecting box arranged at the lower side of the purifying cavity 241 can collect the oil residue flowing downwards on the filtering membrane, so that the oil residue can be prevented from blocking the purifying cavity 241.

The emission lamp 245 and the first light receiver 246 are respectively disposed on two sides of the filtering membrane 242, so that when the emission lamp 245 works to emit light, the light generated by the emission lamp 245 is received by the first light receiver 246 and light intensity information is acquired, and whether the light transmittance of the filtering membrane meets the use requirement, that is, whether the filtering membrane needs to be replaced, is determined according to the light intensity information acquired by the first light receiver 246. The emitting lamp 245 and the second light receiver 247 are disposed on the same side, so that the light emitted from the emitting lamp 245 can be transmitted to the second light receiver 247 without being blocked, and the second receiving information detected by the second light receiver 247 is the light intensity change information collected when the oil smoke is generated in the purifying chamber.

In a more specific embodiment, a flow rate sensor 248 is fixed on one side of the purifying chamber 241, and the flow rate sensor 248 is disposed downstream of the blower 244 and electrically connected to the controller 23. Specifically, a fixing plate 25 connected to a side wall of the purifying chamber 241 is disposed above the collecting box 243, and the fan 244 is fixed to the fixing plate 25.

Specifically, can set up flow rate sensor 248 in the low reaches of fan 244, and acquire the velocity of flow of the air current that the fan 244 front end was exported in real time through flow rate sensor 248, whether accord with operation requirement to filtration membrane according to the velocity of flow detection value that velocity of flow sensor acquireed and the first receipt information that first light receiver 246 acquireed and carry out comprehensive judgement, thereby whether more accurately carry out more accurate discernment to filtration membrane by the serious jam of grease, in order to remind the user in time to change unable normal use filtration membrane through accurate discernment, thereby improve filtration membrane's result of use, also can further improve oil smoke detection device 24 and carry out filterable effect to the oil smoke.

Specifically, a fixing plate 25 connected to a sidewall of the purifying chamber 241 may be further disposed above the collecting box 243, and the fan 244 is fixed to the fixing plate 25, so that the fan 244 is stably fixed. In a more specific embodiment, the movable plate 3 may be further disposed on the housing 21, the movable plate 3 is disposed on the upper side of the collecting box 243, the specific structure is as shown in fig. 9, the movable plate 3 is in a closed state during normal use of the oven, when the filtering membrane needs to be replaced, the collecting box 243 may be drawn out from the oil smoke detecting device 24, and the movable plate 3 is pulled up to rotate the movable plate 3 around the top of the upper end, so as to open the area of the housing 21 corresponding to the filtering membrane, which is convenient for a user to replace the filtering membrane.

In addition, the collecting box 243 is further provided with a long projection 249 on the outer side thereof, and a user can pull the collecting box 243 outwards through the long projection 249, so that the user can conveniently pull out the collecting box 243 and clean the oil residue in the collecting box 243.

In a more specific embodiment, the filtering membrane 242 is obliquely disposed in the purifying chamber 241, and the lower end of the filtering membrane 242 is inclined to a side away from the blower 244. Specifically, a fixed hook 26 is arranged on one side wall of the purifying cavity 241 close to the filtering membrane, and the filtering membrane 242 is hung on the fixed hook 26. The lower end of the filtering membrane 242 is provided with a drainage strip 27, the drainage strip 27 is gathered towards the middle, and the tail end of the drainage strip 27 extends into the collecting box 243. Specifically, the drainage strip 27 is composed of a plurality of drainage guide rods connected with the lower end of the filtering membrane 242, and each drainage guide rod is independently connected with the lower end of the filtering membrane 242.

In order to improve the filtering effect of the filtering membrane 242 on the oil smoke, the filtering membrane 242 may be obliquely disposed in the purifying chamber 241, so as to increase the filtering area of the filtering membrane 242 as much as possible and increase the volume of the gas filtered by the filtering membrane 242 per unit time. Meanwhile, the filtering membrane 242 is obliquely arranged, so that oil residues flowing downwards on the filtering membrane 242 can be prevented from dripping to the region of the non-collecting box 243, the tail end of the filtering membrane 242 extends into the collecting box 243, the oil residues flowing downwards on the filtering membrane 242 can be accurately dripped into the collecting box 243, and the oil residue collecting efficiency is improved.

In order to stably and obliquely arrange the filter membrane 242, a fixing hook 26 may be disposed on a side wall of the purification chamber 241 near the filter membrane, a bayonet 2421 may be disposed on the side wall of the filter membrane 242, the filter membrane may be fixed to the fixing hook 26 by the bayonet 2421, and the filter membrane 242 may be maintained in an inclined state in the purification chamber 241 by the gravity of the filter membrane 242 and the supporting force of the fixing hook 26.

In a more specific embodiment, the front end of the fixing plate 25 may abut against the side surface of the filtering membrane 242, so that the obliquely arranged filtering membrane 242 is more stable, and the stability of the obliquely arranged filtering membrane 242 is improved, at this time, the front end of the fixing plate 25 may be provided with a saw-toothed structure, and a gap between the saw-toothed structure and the filtering membrane 242 may be used to drop oil residue into the collecting box 243.

In a more specific embodiment, a distance meter 251 is disposed on a lower end surface of the fixing plate 25, and the distance meter 251 is electrically connected to the controller 23. Wherein, the range finder 251 is an infrared range finder.

Specifically, the lower terminal surface of fixed plate 25 still is equipped with distancer 251, and distancer 251 can acquire range finding information and transmit to controller 23, and controller 23 judges the liquid level of collecting the interior oil residue of box 243 according to range finding information, and when judging according to range finding information that the liquid level of collecting the interior oil residue of box 243 is higher than the liquid level height that predetermines, controller 23 can send tip information in order to indicate the user to clear up the oil residue in collecting the box 243 as early as possible. Wherein, distancer 251 can be infrared distancer, through infrared distancer, can more accurately carry out accurate measurement to the liquid level of collecting the interior oil sediment of box 243.

The embodiment of the present invention also provides an intelligent heating control device for an oven, which can be configured in the controller 23 of the oven, and is configured to execute any one of the aforementioned embodiments of the intelligent heating control method for an oven. Specifically, referring to fig. 15, fig. 15 is a schematic block diagram of an intelligent heating control device for an oven according to an embodiment of the present invention.

As shown in fig. 15, the smart heating control apparatus 100 for an oven includes a temperature detection value determination unit 110, an initial image acquisition unit 120, an image detection result acquisition unit 130, a soot detection information reception unit 140, a soot detection result acquisition unit 150, and a heating control information acquisition unit 160.

A temperature detection value determining unit 110, configured to determine whether the temperature detection value is greater than a preset temperature threshold value if the temperature detection value from the temperature detection device is received.

An initial image obtaining unit 120, configured to receive an initial image acquired by the image acquisition device if the temperature detection value is greater than the preset temperature threshold.

An image detection result obtaining unit 130, configured to detect whether the initial image meets a preset image detection condition, so as to obtain a corresponding image detection result.

And an oil smoke detection information receiving unit 140, configured to receive the oil smoke detection information acquired by the oil smoke detection device if the image detection result is yes.

The oil smoke detection result obtaining unit 150 is configured to detect whether the oil smoke detection information satisfies a preset oil smoke detection condition to obtain a corresponding oil smoke detection result.

A heating control information obtaining unit 160, configured to, if the oil smoke detection result is yes, obtain, according to a preset heating configuration rule, heating control information corresponding to the initial image and the oil smoke detection information, and adjust the heating power of the oven according to the heating control information.

The intelligent heating control device for the oven provided by the embodiment of the invention is applied to the intelligent heating control method for the oven, whether the acquired temperature detection value is greater than a preset temperature threshold value or not is judged, if so, the acquired initial image is received and whether the initial image meets the image detection condition or not is judged, if yes, the oil smoke detection information is received and whether the oil smoke detection information meets the oil smoke detection condition or not is judged, and if yes, the heating control information corresponding to the initial image and the oil smoke detection information is acquired and the heating power of the oven is adjusted. According to the intelligent heating control method for the oven, if the temperature detection value is judged to be too high, the initial image and the oil smoke detection information are obtained, the corresponding heating control information is obtained according to the initial image and the oil smoke detection information, the oven heating power is adjusted automatically according to the initial image and the oil smoke detection information, food materials are prevented from being burnt, and the automation degree of oven heating control is improved.

The above-described intelligent heating control apparatus for an oven may be implemented in the form of a computer program that can be run on a computer device as shown in fig. 16.

Referring to fig. 16, fig. 16 is a schematic block diagram of a computer device according to an embodiment of the present invention. The computer device may be a controller 23 for executing the smart heating control method for the oven to receive the temperature detection value, the initial image, and the oil smoke detection information and correspondingly obtain the heating control information so as to automatically adjust the heating power of the oven.

Referring to fig. 16, the computer device 500 includes a processor 502, memory, and a network interface 505 connected by a system bus 501, where the memory may include a storage medium 503 and an internal memory 504.

The storage medium 503 may store an operating system 5031 and computer programs 5032. The computer program 5032, when executed, may cause the processor 502 to perform a smart heating control method for an oven, wherein the storage medium 503 may be a volatile storage medium or a non-volatile storage medium.

The processor 502 is used to provide computing and control capabilities that support the operation of the overall computer device 500.

The internal memory 504 provides an environment for running the computer program 5032 in the storage medium 503, and when the computer program 5032 is executed by the processor 502, the processor 502 can be enabled to execute the intelligent heating control method for the oven.

The network interface 505 is used for network communication, such as providing transmission of data information. It will be appreciated by those skilled in the art that the configuration shown in fig. 16 is a block diagram of only a portion of the configuration associated with aspects of the present invention, and is not intended to limit the computing device 500 to which aspects of the present invention may be applied, as a particular computing device 500 may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

The processor 502 is configured to run the computer program 5032 stored in the memory, so as to implement the corresponding functions in the intelligent heating control method for the oven.

Those skilled in the art will appreciate that the embodiment of a computer device shown in fig. 16 does not constitute a limitation on the specific construction of the computer device, and in other embodiments a computer device may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. For example, in some embodiments, the computer device may only include the memory and the processor, and in such embodiments, the structures and functions of the memory and the processor are consistent with the embodiment shown in fig. 16, and are not described herein again.

It should be understood that, in the embodiment of the present invention, the Processor 502 may be a Central Processing Unit (CPU), and the Processor 502 may also be other general-purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In another embodiment of the invention, a computer-readable storage medium is provided. The computer readable storage medium may be a volatile or non-volatile computer readable storage medium. The computer readable storage medium stores a computer program, wherein the computer program, when executed by the processor, implements the steps included in the above-described smart heating control method for an oven.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses, devices and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only a logical division, and there may be other divisions in actual implementation, or units with the same function may be grouped into one unit, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a computer-readable storage medium, which includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned computer-readable storage media comprise: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An intelligent heating control method for an oven is characterized in that the method is applied to a controller of the oven, and the oven further comprises an image acquisition device, a temperature detection device and an oil smoke detection device which are in communication connection with the controller; the method comprises the following steps:

detecting whether the initial image meets preset image detection conditions to obtain a corresponding image detection result;

2. The intelligent heating control method for the oven as claimed in claim 1, wherein the detecting whether the initial image satisfies a preset image detection condition to obtain a corresponding image detection result comprises:

performing edge dissolving on the initial image according to an edge dissolving rule of the image detection condition;

cutting the initial image into a foreground image and a background image according to the result of the edge dissolution;

acquiring pixel characteristic difference information between the foreground image and the background image;

and judging whether the pixel characteristic difference information is in the difference interval of the image detection condition or not to obtain an image detection result whether the initial image meets the image detection condition or not.

3. The intelligent heating control method for an oven according to claim 2, further comprising, after the obtaining pixel characteristic difference information between the foreground image and the background image:

obtaining regional pixel characteristic information of the foreground image;

and judging whether the area pixel characteristic information is located in a characteristic interval of the image detection condition and whether the pixel characteristic difference information is located in a difference interval of the image detection condition, so as to obtain an image detection result whether the initial image meets the image detection condition.

4. The intelligent heating control method for an oven as claimed in claim 2 or 3, wherein the obtaining of the difference characteristic information between the foreground image and the background image comprises:

counting pixels contained in the foreground image to obtain corresponding first pixel characteristic information, wherein the first pixel characteristic information comprises a pixel maximum value, a pixel minimum value, a pixel mean value and a pixel variance;

counting pixels contained in the background image to obtain corresponding second pixel characteristic information, wherein the second pixel characteristic information comprises a pixel maximum value, a pixel minimum value, a pixel mean value and a pixel variance;

and obtaining difference values of all numerical values in the first pixel characteristic information and all numerical values in the second pixel characteristic information to obtain the difference characteristic information.

5. The intelligent heating control method for the oven according to claim 1, wherein the detecting whether the fume detection information satisfies a preset fume detection condition to obtain a corresponding fume detection result comprises:

judging whether the flow rate change rate in the oil smoke detection information is higher than a first threshold value of the oil smoke detection condition;

judging whether the light intensity change rate in the oil smoke detection information is higher than a second threshold value of the oil smoke detection condition;

and if the flow rate change rate is higher than the first threshold or the light intensity change rate is higher than the second threshold, obtaining an oil smoke detection result of which the oil smoke detection information meets the oil smoke detection condition.

6. The intelligent heating control method for an oven according to claim 1, wherein the obtaining of the heating control information corresponding to the initial image and the soot detection information according to a preset heating configuration rule includes:

acquiring corresponding combined characteristic information from the initial image and the oil smoke detection information;

acquiring a heating control grade matched with the combined characteristic information from the heating configuration rule;

and generating corresponding heating control information according to the heating control grade.

7. The intelligent heating control method for an oven according to claim 6, wherein the obtaining of the corresponding combined feature information from the initial image and the smoke detection information includes:

obtaining regional pixel characteristic information of a foreground image in the initial image;

and combining the area pixel characteristic information with the flow velocity change rate and the light intensity change rate in the oil smoke detection information to obtain the combined characteristic information.

8. An intelligent heating control device for an oven is characterized in that the device is configured in a controller of the oven, and the oven further comprises an image acquisition device, a temperature detection device and an oil smoke detection device which are in communication connection with the controller; the device comprises:

the oil smoke detection information receiving unit is used for receiving the oil smoke detection information collected by the oil smoke detection device if the image detection result is yes;

9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the intelligent heating control method for an oven according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the smart heating control method for an oven of any one of claims 1 to 7.