CN108260242B - Microwave cooking equipment and protection control method and device thereof - Google Patents
Microwave cooking equipment and protection control method and device thereof Download PDFInfo
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Abstract
The invention discloses microwave cooking equipment and a protection control method and a device thereof, wherein the method comprises the following steps of collecting the current image of food in the microwave cooking equipment; obtaining the type of food in the microwave cooking equipment, and determining a comparison threshold value corresponding to the type of the food according to the type of the food; performing image processing on a current image of the food to extract feature information of the current image, and comparing the feature information of the current image with feature information of a previous image to obtain a comparison result; and judging whether the state of the food is abnormal or not according to the comparison result and the corresponding comparison threshold, so that whether the state of the food is abnormal or not can be accurately identified according to the image characteristic information, and the accuracy of judging the state abnormality can be further improved and the identification accuracy can be effectively improved by identifying the type of the food.
Description
Technical Field
The invention relates to the technical field of cooking equipment, in particular to a protection control method of microwave cooking equipment, a protection control device of microwave cooking equipment, the microwave cooking equipment and a non-transitory readable storage medium.
Background
The related art microwave oven part recognizes whether or not a fire occurs in the microwave oven by a sound, that is, if a detected sound characteristic value corresponds to a sound characteristic value of the fire, it is judged that the fire occurs.
However, the related art has problems in that a large amount of data of the characteristic value of the striking sound needs to be stored, the complexity is high, and the sound is easily interfered by the sound of the microwave oven in operation and the external sound, and the recognition accuracy is low.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, an object of the present invention is to provide a protection control method of a microwave cooking apparatus, which can accurately recognize whether the state of food is abnormal.
Another object of the present invention is to provide a protection control device for a microwave cooking apparatus.
It is a further object of the present invention to provide a microwave cooking apparatus.
It is a further object of this invention to propose a non-transitory readable storage medium.
In order to achieve the above object, an embodiment of the present invention provides a protection control method for a microwave cooking apparatus, including the following steps: acquiring a current image of food in the microwave cooking device; obtaining the type of food in the microwave cooking equipment, and determining a comparison threshold value corresponding to the type of the food according to the type of the food; performing image processing on a current image of the food to extract feature information of the current image, and comparing the feature information of the current image with feature information of a previous image to obtain a comparison result; and judging whether the state of the food is abnormal or not according to the comparison result and the corresponding comparison threshold value.
According to the protection control method of the microwave cooking equipment provided by the embodiment of the invention, the current image of food in the microwave cooking equipment is acquired, then the type of the food in the microwave cooking equipment is acquired, the comparison threshold value corresponding to the type of the food is determined according to the type of the food, the current image of the food is subjected to image processing to extract the characteristic information of the current image, the characteristic information of the current image is compared with the characteristic information of the previous image to acquire the comparison result, and whether the state of the food is abnormal or not is judged according to the comparison result and the corresponding comparison threshold value. Therefore, the control method can accurately identify whether the state of the food is abnormal or not according to the image characteristic information, and can further improve the accuracy of state abnormality judgment and effectively improve the identification accuracy by identifying the type of the food.
According to an embodiment of the present invention, the characteristic information includes RGB values and contour characteristic values, and the comparison threshold includes an RGB comparison threshold and a contour comparison threshold corresponding to the type of the food.
According to an embodiment of the present invention, the determining whether the state of the food in the microwave cooking device is abnormal according to the comparison result and the corresponding comparison threshold includes: and if the difference value between the RGB value of the current image and the RGB value of the previous image is greater than the corresponding RGB comparison threshold value, judging that the state abnormality occurs in the microwave cooking equipment.
According to one embodiment of the invention, if the difference value between the contour characteristic value of the current image and the contour characteristic value of the last image is greater than the corresponding contour comparison threshold value, the condition abnormity occurs in the microwave cooking equipment.
According to one embodiment of the invention, the type of the food is obtained by acquiring an initial image of the food in the microwave cooking device.
According to an embodiment of the present invention, the protection control method of the microwave cooking apparatus further includes: and when the state of the food is abnormal, controlling a microwave generating unit of the microwave cooking equipment to stop working.
In order to achieve the above object, according to another aspect of the present invention, a protection control device for a microwave cooking apparatus includes: the acquisition unit is used for acquiring a current image of food in the microwave cooking equipment; the image processing unit is connected with the acquisition unit and is used for carrying out image processing on the current image of the food so as to extract the characteristic information of the current image; the control unit is connected with the image processing unit and used for acquiring the type of food in the microwave cooking equipment, determining a comparison threshold value corresponding to the type of the food according to the type of the food, comparing the characteristic information of the current image with the characteristic information of the previous image to acquire a comparison result, and judging whether the state of the food is abnormal or not according to the comparison result and the corresponding comparison threshold value.
According to the protection control device of the microwave cooking equipment provided by the embodiment of the invention, the current image of food in the microwave cooking equipment is acquired through the acquisition unit, the image processing unit is used for processing the current image of the food to extract the characteristic information of the current image, the control unit is used for acquiring the type of the food in the microwave cooking equipment, determining the comparison threshold value corresponding to the type of the food according to the type of the food, comparing the characteristic information of the current image with the characteristic information of the previous image to acquire the comparison result, and judging whether the state of the food is abnormal or not according to the comparison result and the corresponding comparison threshold value. Therefore, the control device can accurately identify whether the state of the food is abnormal or not according to the image characteristic information, and can further improve the accuracy of state abnormity judgment and effectively improve the identification accuracy by identifying the type of the food.
According to an embodiment of the present invention, the characteristic information includes RGB values and contour characteristic values, and the comparison threshold includes an RGB comparison threshold and a contour comparison threshold corresponding to the type of the food.
According to an embodiment of the present invention, the control unit is further configured to determine that a state abnormality occurs in the microwave cooking apparatus when a difference between an RGB value of a current image and an RGB value of a previous image is greater than a corresponding RGB comparison threshold.
According to an embodiment of the present invention, the control unit is further configured to determine that a state abnormality occurs in the microwave cooking apparatus when a difference between the profile feature value of the current image and the profile feature value of the previous image is greater than a corresponding profile comparison threshold.
According to one embodiment of the invention, the control unit further acquires an initial image of food in the microwave cooking device through the acquisition unit so as to acquire the type of the food.
According to an embodiment of the present invention, the control unit is further configured to control the microwave generating unit of the microwave cooking apparatus to stop operating when the state of the food is abnormal.
In order to achieve the above object, another embodiment of the present invention provides a microwave cooking apparatus, including the protection control device of the microwave cooking apparatus.
According to the microwave cooking equipment provided by the embodiment of the invention, whether the state of the food is abnormal or not can be accurately identified through the control protection device of the microwave cooking equipment, and the accuracy of state abnormality judgment can be further improved and the identification accuracy can be effectively improved through identifying the type of the food.
To achieve the above object, a non-transitory readable storage medium according to another aspect of the present invention is a non-transitory readable storage medium storing a cooking program, which when executed by a processor implements a protection control method of a microwave cooking apparatus.
According to the non-transitory readable storage medium provided by the embodiment of the invention, whether the state of the food is abnormal or not can be accurately identified according to the image characteristic information, and the accuracy of state abnormality judgment can be further improved and the identification accuracy can be effectively improved by identifying the type of the food.
Drawings
Fig. 1 is a flowchart of a protection control method of a microwave cooking apparatus according to an embodiment of the present invention;
fig. 2 is a flowchart of a protection control method of a microwave cooking apparatus according to an embodiment of the present invention;
FIG. 3 is a block diagram of a protection control device of a microwave cooking apparatus according to an embodiment of the present invention
Fig. 4 is a block schematic view of a microwave cooking apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A protection control method of a microwave cooking apparatus, a protection control device of a microwave cooking apparatus, and a microwave cooking apparatus according to embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a protection control method of a microwave cooking apparatus according to an embodiment of the present invention. As shown in fig. 1, the protection control method of the microwave cooking apparatus according to the embodiment of the present invention includes the steps of:
s1: a current image of food within the microwave cooking device is acquired.
It should be noted that the current image of the food in the microwave cooking device may be collected after the food is placed in the microwave cooking device, and the current image of the food in the microwave cooking device may be collected after the microwave cooking device starts heating. In other words, the current image of the food, i.e., the initial image of the food, may be acquired before the microwave cooking apparatus heats up, and the current image of the food, i.e., the real-time image while heating, may be acquired after the microwave cooking apparatus starts heating up.
S2: the method comprises the steps of acquiring the type of food in the microwave cooking equipment, and determining a comparison threshold corresponding to the type of the food according to the type of the food.
According to one embodiment of the present invention, the type of food may be acquired by acquiring an initial image of the food within the microwave cooking apparatus. That is, after food is put into the microwave cooking apparatus, before the microwave cooking apparatus starts heating, an image of the food in the microwave cooking apparatus is acquired to acquire an initial image.
It should be noted that, a preset image processing algorithm, such as an onecut algorithm, may be used to process the initial image to separate the food from the image of the plate holding the food, and then perform food identification according to the separated image of the food to obtain the type of the food, and then determine the comparison threshold corresponding to the type of the food according to the type of the food.
Specifically, the whole image of food and the plate in the initial image of the food can be obtained, then the outline of the plate is calculated according to an onecut algorithm, the whole image is used for subtracting the image of the plate, then the pure image of the food can be obtained, and then the food type in the microwave cooking equipment is obtained by identifying the food according to the image of the food.
It should be noted that the type of food input by the user may also be obtained through the operation panel of the microwave cooking device, that is, the user may select the type of food to be cooked through the operation panel of the microwave cooking device. At this time, since the food type does not need to be identified through the initial image of the food, the process of collecting the initial image of the food before the microwave cooking device is heated can be omitted, that is, the real-time image collection of the food in the microwave cooking device can be directly carried out after the microwave cooking device starts to heat, that is, the current image of the food in the microwave cooking device is collected, so as to carry out the subsequent protection control process.
It is to be understood that determining the comparison threshold corresponding to the type of food according to the type of food can prevent erroneous determination, for example, determination of abnormality due to a large degree of color change of shrimp when boiling shrimp or determination of abnormality due to a large expansion of popcorn when making popcorn.
S3: the current image of the food is subjected to image processing to extract feature information of the current image, and the feature information of the current image is compared with feature information of a previous image to obtain a comparison result.
According to an embodiment of the present invention, the feature value includes an RGB value and a contour feature value, and the comparison threshold includes an RGB comparison threshold and a contour comparison threshold corresponding to the type of the food.
That is to say, in the cooking process, the current image of food in the microwave cooking device is collected in real time, the RGB value and the contour characteristic value of the current image are obtained, and then the characteristic information of the current image is compared with the characteristic information of the previous image to obtain a comparison result.
It should be noted that the contour feature value may also be obtained according to the onecut algorithm, which is the preset image processing algorithm, that is, when obtaining a pure food image through the onecut algorithm, the contour feature value of the food is also obtained at the same time. In other words, when the onecut algorithm calculation is performed on the initial image, the initial contour feature value of the food and the type of the food can be obtained, and when the onecut algorithm calculation is performed on the current image acquired during the heating process, the contour feature value of the current food can be obtained so that the contour feature value of the current image can be compared with the contour feature value of the previous image.
S4: and judging whether the state of the food is abnormal or not according to the comparison result and the corresponding comparison threshold value. The abnormal state of the food can be ignition, fire, food explosion or liquid food overflow.
It should be understood that, according to the microwave characteristics, when the metal tableware is placed in the microwave cooking device for heating, the metal tableware absorbs the microwaves, and then the metal tableware absorbing the microwaves is excited by the excited electrons to vibrate to generate a large current, so that electric sparks are generated between the metal tableware and the microwave cooking device, and even the microwave device or the metal tableware is burned. In addition, when the cooking time is too long, the food is heated continuously, carbonization, ignition, smoking, and the like easily occur after moisture of the food is evaporated, or expansion and explosion easily occur due to wrong cooking mode, easily expanded food with sealed package, and the like, and liquid food is easily spilled when the liquid food is cooked by microwave.
According to one embodiment of the present invention, when the state of food is abnormal, the microwave generating unit of the microwave cooking apparatus is controlled to stop operating.
Specifically, when the microwave cooking device is used for cooking, firstly, the type of food is obtained through an initial image of the food in the microwave cooking device, a comparison threshold corresponding to the type of the food is determined according to the type of the food, then, a current image of the food in the microwave cooking device is collected in real time in the cooking process, image processing is carried out on the current image of the food, feature information, such as an RGB value and a contour feature value, of the current image is extracted, the feature value of the current image is compared with the feature information of a previous image to obtain a comparison result, finally, whether the state of the food is abnormal or not is judged according to the comparison result and the corresponding comparison threshold, and when the state of the food is abnormal, a microwave generating unit of the microwave cooking device is controlled to stop working, namely, the microwave cooking device is controlled to stop cooking operation.
Therefore, the method can timely judge the abnormal state of the microwave cooking equipment by acquiring the characteristic value of the image in real time and comparing the characteristic value with the characteristic information of the previous image, and can judge various abnormal states by comparing the RGB value with the contour characteristic value, thereby effectively improving the safety of the microwave cooking equipment and improving the user experience.
According to one embodiment of the present invention, determining whether the state of food in the microwave cooking apparatus is abnormal according to the comparison result and the corresponding comparison threshold includes: and if the difference value between the RGB value of the current image and the RGB value of the previous image is greater than the corresponding RGB comparison threshold value, judging that the state abnormality occurs in the microwave cooking equipment.
That is to say, the RGB value of the current image is obtained, the difference value between the RGB value of the current image and the RGB value of the previous image is obtained, then it is determined whether the difference value between the RGB value of the current image and the RGB value of the previous image is greater than the corresponding RGB comparison threshold value, if the RGB value is greater than the corresponding RGB comparison threshold value, it is determined that a state abnormality occurs in the microwave cooking device, the microwave generating unit is controlled to stop working, and if the RGB value is less than or equal to the corresponding RGB comparison threshold value, the cooking is continued.
It should be understood that based on the comparison of the RGB values, various color changing status anomalies can be identified, including but not limited to, sparking, ignition, carbonization, and the like.
According to one embodiment of the invention, if the difference value between the contour characteristic value of the current image and the contour characteristic value of the last image is greater than the corresponding contour comparison threshold value, the condition abnormity is judged to occur in the microwave cooking device.
That is to say, the contour characteristic value of the current image is obtained, the difference value between the contour characteristic value of the current image and the contour characteristic value of the previous image is obtained, whether the difference value between the contour characteristic value of the current image and the contour characteristic value of the previous image is larger than the corresponding contour characteristic value comparison threshold value or not is judged, if the contour characteristic value is larger than the corresponding contour characteristic comparison threshold value, the abnormal state in the microwave cooking equipment is judged, the microwave generating unit is controlled to stop working, and if the contour characteristic value is smaller than or equal to the corresponding contour characteristic comparison threshold value, the cooking is continued.
It should be understood that from the comparison of the profile feature values, a variety of profile-changing condition anomalies can be identified, including but not limited to explosions, smoking, liquid spills, etc.
Further, the RGB values of the current image may be compared first, and then the contour feature values may be compared.
That is, the RGB value of the current image is obtained and is subtracted from the RGB value of the previous image, the comparison result between the current RGB value and the RGB value of the previous image is obtained, then it is determined whether the comparison result between the RGB value is greater than the corresponding RGB comparison threshold value, if the RGB value is greater than the corresponding RGB comparison threshold value, it is determined that a state abnormality occurs in the microwave cooking apparatus, and the microwave generating unit is controlled to stop working, if the RGB value is less than or equal to the corresponding RGB comparison threshold value, the profile characteristic value of the current image is obtained and is subtracted from the profile characteristic value of the previous image, it is determined whether the comparison result between the profile characteristic value of the current image and the profile characteristic value of the previous image is greater than the corresponding profile characteristic value comparison threshold value, if the profile characteristic value is greater than the corresponding profile characteristic comparison threshold value, it is determined that a state abnormality occurs in the microwave cooking apparatus, and controlling the microwave generating unit to stop working, and if the profile characteristic value is less than or equal to the corresponding profile characteristic comparison threshold value, continuing cooking.
According to an embodiment of the present invention, as shown in fig. 2, a method for protecting a microwave cooking apparatus according to an embodiment of the present invention includes the steps of:
s101: heating is started and an initial image of the food is taken.
S102: food recognition is performed based on the initial image of the food.
S103: the RGB values of the current image are acquired.
S104: and judging whether the difference value between the RGB value of the current image and the RGB value of the previous image is greater than the corresponding RGB comparison threshold value.
If yes, go to step S107; if not, step S105 is performed.
S105: and carrying out contour recognition on the current image.
S106: and judging whether the difference value between the contour characteristic value of the current image and the contour characteristic value of the previous image is larger than the corresponding contour characteristic comparison threshold value.
If yes, step S107 is executed, and if no, the process returns to step S103.
S107: judging the food state is abnormal, and stopping heating.
In summary, according to the protection control method for the microwave cooking device provided by the embodiment of the present invention, by acquiring the current image of the food in the microwave cooking device, then acquiring the type of the food in the microwave cooking device, determining the comparison threshold corresponding to the type of the food according to the type of the food, performing image processing on the current image of the food to extract the feature information of the current image, comparing the feature information of the current image with the feature information of the previous image to acquire the comparison result, and determining whether the state of the food is abnormal according to the comparison result and the corresponding comparison value. Therefore, the control method can accurately identify whether the state of the food is abnormal or not according to the image characteristic information, and can further improve the accuracy of state abnormality judgment and effectively improve the identification accuracy by identifying the type of the food.
Fig. 3 is a block diagram illustrating a protection control apparatus of a microwave cooking device according to an embodiment of the present invention. As shown in fig. 3, the protection control device of the microwave cooking apparatus according to the embodiment of the present invention includes: an acquisition unit 10, an image processing unit 20 and a control unit 30.
The acquisition unit 10 is used for acquiring a current image of food in the microwave cooking equipment; the image processing unit 20 is connected with the acquisition unit 10, and the image processing unit 20 is used for performing image processing on the current image of the food to extract the characteristic information of the current image; the control unit 30 is connected to the image processing unit 20, and the control unit 30 is configured to obtain a type of food in the microwave cooking apparatus, determine a comparison threshold corresponding to the type of the food according to the type of the food, compare the feature information of the current image with the feature information of the previous image to obtain a comparison result, and determine whether the state of the food is abnormal according to the comparison result and the corresponding comparison threshold.
It should be understood that, according to the microwave characteristics, when the metal tableware is placed in the microwave cooking device for heating, the metal tableware absorbs the microwaves, and then the metal tableware absorbing the microwaves is excited by the excited electrons to vibrate to generate a large current, so that electric sparks are generated between the metal tableware and the microwave cooking device, and even the microwave device or the metal tableware is burned. In addition, when the cooking time is too long, the food is heated continuously, carbonization, ignition, smoking, and the like easily occur after moisture of the food is evaporated, or expansion and explosion easily occur due to wrong cooking mode, easily expanded food with sealed package, and the like, and liquid food is easily spilled when the liquid food is cooked by microwave.
According to an embodiment of the present invention, the control unit further acquires an initial image of food in the microwave cooking apparatus through the acquisition unit to acquire the type of the food. That is, after food is put into the microwave cooking apparatus, an image of the food in the microwave cooking apparatus may be acquired to acquire an initial image before the microwave cooking apparatus starts heating.
It should be noted that, a preset image processing algorithm, such as an onecut algorithm, may be used to process the initial image to separate the food from the image of the plate holding the food, and then perform food identification according to the separated image of the food to obtain the type of the food, and then determine the comparison threshold corresponding to the type of the food according to the type of the food.
Specifically, the whole image of food and the plate in the initial image of the food can be obtained, then the outline of the plate is calculated according to an onecut algorithm, the whole image is used for subtracting the image of the plate, then the pure image of the food can be obtained, and then the food type in the microwave cooking equipment is obtained by identifying the food according to the image of the food.
It should be noted that the type of food input by the user may also be obtained through the operation panel of the microwave cooking device, that is, the user may select the type of food to be cooked through the operation panel of the microwave cooking device. At this time, since the food type does not need to be identified through the initial image of the food, the process of collecting the initial image of the food before the microwave cooking device is heated can be omitted, that is, the real-time image collection of the food in the microwave cooking device can be directly carried out after the microwave cooking device starts to heat, that is, the current image of the food in the microwave cooking device is collected, so as to carry out the subsequent protection control process. It is to be understood that determining the comparison threshold corresponding to the type of food according to the type of food can prevent erroneous determination, for example, determination of abnormality due to a large degree of color change of shrimp when boiling shrimp or determination of abnormality due to a large expansion of popcorn when making popcorn.
According to an embodiment of the present invention, the control unit is further configured to control the microwave generating unit of the microwave cooking apparatus to stop operating when the state of the food is abnormal.
Specifically, during the heating process of the microwave cooking device, the current image of food in the microwave cooking device is collected through the collecting unit 10, the image processing unit 20 performs image processing on the current image of the food, extracts feature information of the current image, the control unit 30 obtains the type of the food in the microwave cooking device, determines a comparison threshold value corresponding to the type of the food according to the type of the food, compares the feature information of the current image with the feature information of the previous image to obtain a comparison result, and judges whether the state of the food is abnormal or not according to the comparison result and the corresponding comparison threshold value.
From this, the device is through the eigenvalue of real-time acquisition image and compare with the characteristic information of last image, can in time judge the abnormal state that takes place in the microwave cooking equipment, and moreover, the multiple abnormal state is judged in the comparison of accessible RGB value and profile eigenvalue, effectively improves the security of microwave cooking equipment, promotes user's experience.
According to an embodiment of the present invention, the feature value includes an RGB value and a contour feature value, and the comparison threshold includes an RGB comparison threshold and a contour comparison threshold corresponding to the type of the food.
That is to say, in the cooking process, the current image of food in the microwave cooking device is collected in real time, the RGB value and the contour characteristic value of the current image are obtained, and then the characteristic information of the current image is compared with the characteristic information of the previous image to obtain a comparison result.
It should be noted that the contour feature value may also be obtained according to the onecut algorithm, which is the preset image processing algorithm, that is, when obtaining a pure food image through the onecut algorithm, the contour feature value of the food is also obtained at the same time. In other words, when the onecut algorithm calculation is performed on the initial image, the initial contour feature value of the food and the type of the food can be obtained, and when the onecut algorithm calculation is performed on the current image acquired during the heating process, the contour feature value of the current food can be obtained so that the contour feature value of the current image can be compared with the contour feature value of the previous image.
According to an embodiment of the present invention, the control unit 30 is further configured to determine that a state abnormality occurs in the microwave cooking apparatus when a difference value between the RGB value of the current image and the RGB value of the previous image is greater than a corresponding RGB comparison threshold value.
That is to say, the RGB value of the current image is obtained, the difference value between the RGB value of the current image and the RGB value of the previous image is obtained, then it is determined whether the difference value between the RGB value of the current image and the RGB value of the previous image is greater than the corresponding RGB comparison threshold value, if the RGB value is greater than the corresponding RGB comparison threshold value, it is determined that a state abnormality occurs in the microwave cooking device, the microwave generating unit is controlled to stop working, and if the RGB value is less than or equal to the corresponding RGB comparison threshold value, the cooking is continued.
It should be understood that based on the comparison of the RGB values, various color changing status anomalies can be identified, including but not limited to, sparking, ignition, carbonization, and the like.
According to an embodiment of the present invention, the control unit 30 is further configured to determine that a state abnormality occurs in the microwave cooking apparatus when a difference between the profile feature value of the current image and the profile feature value of the previous image is greater than a corresponding profile comparison threshold.
That is to say, the contour characteristic value of the current image is obtained, the difference value between the contour characteristic value of the current image and the contour characteristic value of the previous image is obtained, whether the difference value between the contour characteristic value of the current image and the contour characteristic value of the previous image is larger than the corresponding contour characteristic value comparison threshold value or not is judged, if the contour characteristic value is larger than the corresponding contour characteristic comparison threshold value, the abnormal state in the microwave cooking equipment is judged, the microwave generating unit is controlled to stop working, and if the contour characteristic value is smaller than or equal to the corresponding contour characteristic comparison threshold value, the cooking is continued.
It should be understood that from the comparison of the profile feature values, a variety of profile-changing condition anomalies can be identified, including but not limited to explosions, smoking, liquid spills, etc.
Further, the RGB values of the current image may be compared first, and then the contour feature values may be compared.
That is, the RGB value of the current image is obtained and is subtracted from the RGB value of the previous image, the comparison result between the current RGB value and the RGB value of the previous image is obtained, then it is determined whether the comparison result between the RGB value is greater than the corresponding RGB comparison threshold value, if the RGB value is greater than the corresponding RGB comparison threshold value, it is determined that a state abnormality occurs in the microwave cooking apparatus, and the microwave generating unit is controlled to stop working, if the RGB value is less than or equal to the corresponding RGB comparison threshold value, the profile characteristic value of the current image is obtained and is subtracted from the profile characteristic value of the previous image, it is determined whether the comparison result between the profile characteristic value of the current image and the profile characteristic value of the previous image is greater than the corresponding profile characteristic value comparison threshold value, if the profile characteristic value is greater than the corresponding profile characteristic comparison threshold value, it is determined that a state abnormality occurs in the microwave cooking apparatus, and controlling the microwave generating unit to stop working, and if the profile characteristic value is less than or equal to the corresponding profile characteristic comparison threshold value, continuing cooking.
In summary, according to the protection control device of the microwave cooking apparatus provided by the embodiment of the present invention, the current image of the food in the microwave cooking apparatus is collected by the collecting unit, the image processing unit performs image processing on the current image of the food to extract the feature information of the current image, the control unit obtains the type of the food in the microwave cooking apparatus, determines the comparison threshold corresponding to the type of the food according to the type of the food, compares the feature information of the current image with the feature information of the previous image to obtain the comparison result, and determines whether the state of the food is abnormal according to the comparison result and the corresponding comparison threshold. Therefore, the control device can accurately identify whether the state of the food is abnormal or not according to the image characteristic information, and can further improve the accuracy of state abnormity judgment and effectively improve the identification accuracy by identifying the type of the food.
The embodiment of the invention also provides microwave cooking equipment.
Fig. 4 is a block schematic view of a microwave cooking apparatus according to an embodiment of the present invention. As shown in fig. 4, a microwave cooking apparatus 200 according to an embodiment of the present invention includes a protection control device 100 of the microwave cooking apparatus.
According to the microwave cooking equipment provided by the embodiment of the invention, whether the state of the food is abnormal or not can be accurately identified through the control protection device of the microwave cooking equipment, and the accuracy of state abnormality judgment can be further improved and the identification accuracy can be effectively improved through identifying the type of the food.
An embodiment of the present invention further provides a non-transitory readable storage medium, on which a cooking program is stored, and the program, when executed by a processor, implements a protection control method of a microwave cooking apparatus.
According to the non-transitory readable storage medium provided by the embodiment of the invention, whether the state of the food is abnormal or not can be accurately identified according to the image characteristic information, and the accuracy of state abnormality judgment can be further improved and the identification accuracy can be effectively improved by identifying the type of the food.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. A protection control method of microwave cooking equipment is characterized by comprising the following steps:
acquiring a current image of food in the microwave cooking device;
acquiring an initial image of food in the microwave cooking equipment to acquire the type of the food in the microwave cooking equipment, and determining a comparison threshold value corresponding to the type of the food according to the type of the food;
performing image processing on a current image of the food to extract feature information of the current image, and comparing the feature information of the current image with feature information of a previous image to obtain a comparison result;
the characteristic information comprises RGB values, and the comparison threshold comprises an RGB comparison threshold corresponding to the type of the food;
judging whether the state of the food is abnormal or not according to the comparison result and the corresponding comparison threshold value;
the judging whether the state of the food in the microwave cooking equipment is abnormal according to the comparison result and the corresponding comparison threshold value comprises the following steps: if the difference value between the RGB value of the current image and the RGB value of the previous image is larger than the corresponding RGB comparison threshold value, judging that the state abnormality occurs in the microwave cooking equipment;
the characteristic information further comprises a profile characteristic value, and the comparison threshold further comprises a profile comparison threshold corresponding to the type of the food;
and if the difference value between the contour characteristic value of the current image and the contour characteristic value of the previous image is greater than the corresponding contour comparison threshold value, judging that the state abnormality occurs in the microwave cooking equipment.
2. The protection control method of a microwave cooking apparatus according to claim 1, further comprising: and when the state of the food is abnormal, controlling a microwave generating unit of the microwave cooking equipment to stop working.
3. A protection control device of microwave cooking equipment is characterized by comprising:
the acquisition unit is used for acquiring a current image of food in the microwave cooking equipment;
the image processing unit is connected with the acquisition unit and is used for carrying out image processing on the current image of the food so as to extract the characteristic information of the current image;
the control unit is connected with the image processing unit and used for acquiring the type of food in the microwave cooking equipment according to an initial image of the food in the microwave cooking equipment, determining a comparison threshold value corresponding to the type of the food according to the type of the food, comparing the characteristic information of the current image with the characteristic information of the previous image to acquire a comparison result, and judging whether the state of the food is abnormal or not according to the comparison result and the corresponding comparison threshold value;
the characteristic information comprises RGB values, and the comparison threshold comprises an RGB comparison threshold corresponding to the type of the food;
the control unit is also used for judging that the state of the microwave cooking equipment is abnormal when the difference value between the RGB value of the current image and the RGB value of the previous image is greater than the corresponding RGB comparison threshold value,
the characteristic information further includes a profile characteristic value, the comparison threshold further includes a profile comparison threshold corresponding to a type of the food,
the control unit is further used for judging that the state abnormality occurs in the microwave cooking equipment when the difference value between the contour characteristic value of the current image and the contour characteristic value of the previous image is larger than the corresponding contour comparison threshold value.
4. The protection control device of microwave cooking equipment according to claim 3, characterized in that the control unit is further configured to control the microwave generating unit of the microwave cooking equipment to stop working when the state of the food is abnormal.
5. Microwave cooking device, characterized in that it comprises protection control means of a microwave cooking device according to any of claims 3-4.
6. A non-transitory readable storage medium having a cooking program stored thereon, wherein the program, when executed by a processor, implements a protection control method of a microwave cooking apparatus according to any one of claims 1-2.
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| CN109527971B (en) * | 2018-12-29 | 2020-10-27 | 珠海优特智厨科技有限公司 | Cooking method and cooking equipment |
| CN114885098A (en) * | 2022-04-27 | 2022-08-09 | 广东美的厨房电器制造有限公司 | Video shooting method, video shooting device, readable storage medium and cooking utensil |
| WO2024021100A1 (en) * | 2022-07-29 | 2024-02-01 | 广东美的厨房电器制造有限公司 | Control method for cooking apparatus, computer readable storage medium, and cooking apparatus |
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| GB2361763A (en) * | 2000-04-01 | 2001-10-31 | Gazco Ltd | Fire Simulation Apparatus |
| JP2008298299A (en) * | 2007-05-29 | 2008-12-11 | Hoya Corp | Heating cooker |
| EP3107429B1 (en) * | 2014-02-20 | 2023-11-15 | MBL Limited | Methods and systems for food preparation in a robotic cooking kitchen |
| CN104251501A (en) * | 2014-09-10 | 2014-12-31 | 广东美的厨房电器制造有限公司 | Control method for microwave oven and microwave oven |
| CN105701834B (en) * | 2016-02-26 | 2020-07-10 | 珠海大横琴科技发展有限公司 | Automatic picture backup device and method |
| EP3438545A4 (en) * | 2016-03-29 | 2019-04-17 | Panasonic Intellectual Property Management Co., Ltd. | Heating cooker |
| JP6735513B2 (en) * | 2016-06-15 | 2020-08-05 | パナソニックＩｐマネジメント株式会社 | Cooking support method and cooking support system |
| CN106037448B (en) * | 2016-07-29 | 2018-10-02 | 广东美的厨房电器制造有限公司 | Cooking control method, equipment and cooker |
| KR101791498B1 (en) * | 2016-12-05 | 2017-10-31 | 주식회사 아이엠에스일렉트로닉스 | Camera for electric device and viewing angle adjusting method thereof |
| CN106895452A (en) * | 2017-03-22 | 2017-06-27 | 北京小米移动软件有限公司 | Micro-wave oven method for heating and controlling and device |
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