CN107806656B - Food heating control method and food heating device - Google Patents

Abstract

The invention discloses a food heating control method and a food heating device. The method includes: a hyperspectral recognition module obtains a hyperspectral image of the heated food, determines the surface texture and color information of the heated food based on the hyperspectral image, and determines the surface texture and color information of the heated food based on the surface texture and color information. Determine whether the cooked food has reached the set cooked degree, and if so, control to stop the heating of the heated food; based on the analysis of hyperspectral imaging technology, obtain information such as the type, surface texture, surface color and surface temperature of the heated food, and combine these information to judge Heating the doneness of the food realizes a kind of intelligent food heating control. It does not need to use an external or built-in temperature sensor to obtain the temperature of the food, and does not need to rely on the experience of the cook to judge the doneness of the food. It can be realized according to the characteristics of the food heating device. The intelligent adjustment achieves the best cooking effect, and solves the technical problem that the existing food is difficult to control.

Description

Food heating control method and food heating device

technical field

The invention belongs to the technical field of intelligent ovens, and in particular relates to a food heating control method and a food heating device.

Background technique

Food can be well heated to cooked in microwave ovens, ovens and other heating devices. The temperature of the food, especially the surface temperature, has a corresponding relationship with the maturity of the food. The cooked food is not well controlled, and the result is The heated food is undercooked or overcooked.

In order to heat the food properly, the cook needs to control the heating time and heating power according to observation and experience, which makes the cooked food completely depend on the experience of the cook and the working characteristics of the oven or microwave oven, which makes it difficult to control the cooked food. larger.

In the prior art, there is also a method of using a built-in or external temperature sensor or measuring instrument to obtain the temperature of the heated food, and then according to the obtained heating temperature of the food, the heating duration and the heating power are controlled to achieve a better heating degree. control. Among them, in the built-in temperature sensor method, the temperature sensor installed on the inner wall of the oven is inserted on the food, and the heating temperature of the food is obtained during the heating process. This method will destroy the integrity and beauty of the food, and if a thermocouple is connected Or the connection line of the thermal resistance adopts a high temperature resistant plastic envelope, which may volatilize harmful gases. If it is connected with iron wire, its own resistance value will change at high temperature and affect the measurement accuracy; while the external temperature measuring instrument is It is necessary to open the door of the oven or microwave oven and insert it into the food to obtain the temperature of the food during the heating process, which will also destroy the integrity and beauty of the food, and will also cause the heat in the oven or microwave oven to dissipate and destroy the constant heating temperature. It directly affects the effect of heating the food.

SUMMARY OF THE INVENTION

The present application provides a food heating control method and a food heating device, which solve the technical problem of difficulty in controlling the heating doneness of the existing food.

In order to solve the above-mentioned technical problems, the application adopts the following technical solutions to realize:

A food heating control method is proposed, comprising: obtaining a hyperspectral image of the heated food by a hyperspectral identification module; judging the surface texture and color information of the heated food based on the hyperspectral image; Whether the cookedness of the heated food reaches the set cookedness; if so, control to stop the heating of the heated food; wherein, the hyperspectral module is placed in a food heating device that heats the heated food.

Further, before judging the surface texture and color information of the heated food based on the hyperspectral image, the method further includes: determining the type of the heated food based on the hyperspectral image, and obtaining the Weight information of the heated food; setting the heating time and/or the heating power of the heated food based on the type of the heated food and the weight information.

Further, before setting the heating time and/or heating power of the heated food based on the type of the heated food and the weight information, the method further includes: receiving input heating doneness level information; The type of the heated food and the weight information set the heating time and/or the heating power of the heated food, specifically: based on the type of the heated food, the weight information and the heating doneness level information, setting The heating time and/or the heating power of the heated food is determined.

Further, after controlling to stop heating the heated food, the method further includes: acquiring, by the hyperspectral identification module, a hyperspectral image of a heating component in the food heating device; determining based on the hyperspectral image of the component The temperature of the heating part; display the temperature information of the heating part.

Further, after determining the temperature of the heating component based on the hyperspectral image of the component, the method further includes: judging whether the temperature of the heating component is lower than a set temperature, and if so, sending a food heating completion reminder message.

A food heating device is proposed, which includes a hyperspectral identification module, a food information judgment module, a doneness judgment module and a control module; the hyperspectral identification module is placed in the food heating device and is used to obtain the hyperspectral spectrum of the heated food image; the food information judging module for judging the surface texture and color information of the heated food based on the hyperspectral image; the doneness judging module for judging the heating based on the surface texture and color information Whether the doneness of the food reaches the set doneness; if so, the control module is used to control to stop the heating of the heated food.

Further, the food heating device further includes a weight identification module, a heating time setting module and/or a heating power setting module; the weight identification module is used to obtain the weight information of the heated food; the food information determines The module is further configured to determine the type of the heated food based on the hyperspectral image; the heating time setting module is configured to set the heating time of the heated food based on the type of the heated food and the weight information ; The heating power setting module is configured to set the heating power of the heating food based on the type of the heating food and the weight information.

Further, the food heating device further includes an input module; the input module is used for inputting heating doneness level information; the heating time setting module is also used for the type of the heated food and the weight information and the heating doneness level information to set the heating time of the heated food; the heating power setting module is further configured to be based on the type of the heated food, the weight information and the heating doneness level information , to set the heating power of the heated food.

Further, the food heating device includes a heating component, a temperature determination module for the heating component, and a display module; the hyperspectral identification module is further configured to obtain the information after the control module controls to stop heating the heated food. A component hyperspectral image of the heating component; the heating component temperature determination module for determining the temperature of the heating component based on the component hyperspectral image; the display module for displaying the temperature of the heating component.

Further, the food heating device further includes a heating component temperature judgment module and a reminder module; the heating component temperature judgment module is used to judge whether the temperature of the heating component is lower than the set temperature, and if so, the reminder module, Used to send out a reminder message that food heating is complete.

Compared with the prior art, the advantages and positive effects of the present application are: in the food heating control method and the food heating device proposed in the present application, the hyperspectral image of the heated food is acquired by the hyperspectral recognition module, and the hyperspectral image of the heated food is obtained according to the hyperspectral image of the hyperspectral image. The imaging characteristics can determine the type of heated food and the surface texture and color of the heated food. There is a corresponding relationship between the surface texture and color of the food and its degree of maturity. Therefore, according to the surface texture and color of the food, it can be judged. When the doneness of the heated food reaches the set requirement, the control stops the heating of the heated food, which realizes a kind of intelligent food heating control. There is no need to use an external or built-in temperature sensor to obtain the temperature of the food. Relying on the experience of the cook to judge the cookedness of the food, intelligent adjustment can be realized according to the characteristic difference of the food heating device, so as to achieve the best cooking effect, and solve the technical problem of difficult control of the existing cooked food heating.

After the food is heated, the hyperspectral image of the heating components inside the food heating device can also be obtained through the hyperspectral recognition module. From the hyperspectral image of the component, the temperature of the component can be analyzed based on the spectral imaging, and then reminded by displaying the temperature of the component. The temperature in the user's device can avoid scalding when taking food, or after the temperature of the components has dropped to the set temperature, a reminder message will be sent to remind the user to take the food, so as to avoid the user from being scalded by the high-temperature components, which improves the user experience and product quality.

Other features and advantages of the present application will become more apparent after reading the detailed description of the embodiments of the present application in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the food heating control method and control flow chart proposed for this application;

FIG. 2 is a device structure diagram of the food heating device proposed in the present application.

Detailed ways

The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The food heating control method proposed in this application, as shown in Figure 1, includes the following steps:

Step S11: the hyperspectral identification module acquires the hyperspectral image of the heated food.

The hyperspectral identification module is installed inside the food heating device, preferably placed above the heated food. After the heated food is placed in a food heating device such as a microwave oven, an oven, etc., the hyperspectral image of the heated food is acquired according to a set frequency or time interval .

Hyperspectral images are obtained based on hyperspectral imaging technology. Using hyperspectral sensors, the target area is simultaneously imaged with tens to hundreds of continuous and subdivided spectral bands in the ultraviolet, visible, near-infrared and mid-infrared regions of the electromagnetic spectrum. The obtained hyperspectral image is meticulously segmented in the spectral dimension, not only the traditional so-called black, white or R, G, B difference, but also has N channels in the spectral dimension. Therefore, through the hyperspectral sensor What is obtained is a data cube, which not only has the information of the image, but is expanded in the spectral dimension. As a result, not only the spectral data of each point on the image, but also the image information of any spectral segment can be obtained.

Different types of food have different hyperspectral imaging. Through the hyperspectral image of the heated food, the type of food can be analyzed, and the texture and color information of the surface of the heated food can also be analyzed, and the texture and color of the food surface are related to the food being heated. There is also a corresponding relationship between the doneness of heating, that is, the surface texture and color reflect the doneness of the heated food.

Step S12: Determine the type of the heated food based on the hyperspectral image; and Step S13: The weight recognition module obtains the weight information of the heated food.

The weight recognition module is placed under the food tray of the food heating device, and automatically obtains the weight of the heated food after the heated food is placed on the food tray.

Step S14: Set the heating time and/or heating power for heating the food based on the type and weight information of the food.

There is a storage module in the food heating device, and the storage module stores the corresponding heating time and/or heating power of various types of food under different weights. The type and the weight information of the heated food are inquired into the storage module to obtain the corresponding heating time and/or heating power, and then the heating procedure is started according to the query result.

Or, in practical applications, users have different requirements for the degree of doneness. Usually, the food heating device is equipped with a selection program for the user to operate. The user can input the heated food into the food heating device according to his own needs through the control panel. Heating doneness level information, such as selecting medium rare, medium rare, fully cooked, etc., and in the storage module, the heating time and/or heating power corresponding to different degrees of doneness of various types of food under different weights are stored , after the user puts the heated food into the food heating device, the food heating device sets the heating time and/or heating power of the heated food according to the type of the heated food, the weight information and the heating doneness level information, and then starts according to the query result. heating program.

Step S15: Determine the surface texture and color information of the heated food based on the hyperspectral image.

During the heating process of the heated food, the hyperspectral recognition module continues to obtain the hyperspectral image of the heated food, and obtains the surface texture and color of the heated food based on the analysis of the hyperspectral image. The storage module also stores the surface texture and color of the food and the food. The corresponding set of cookedness, after obtaining the surface texture and color of the food through hyperspectral image analysis, the storage module can be queried to obtain the cookedness corresponding to the heated food.

Step S16: Based on the surface texture and color information, determine whether the cookedness of the heated food reaches the set cookedness.

After knowing the cookedness of the heated food, it is determined whether the cookedness of the currently heated food has reached the set cookedness. When the set cookedness is not set by the user, it can be set to fully cooked by default, or the user can set the cooked cooked. The doneness, such as medium-rare, medium-rare, etc., is set in . When the food doneness determined by the surface texture and color information has not reached the set doneness, continue the heating program and continue to obtain the hyperspectral spectrum of the heated food. image, and analysis of surface texture and color to determine doneness, until doneness reaches the set doneness,

Step S17: Control stops the heating of the heated food.

After the doneness of the food reaches the set doneness, no matter whether the set heating time is reached or not, the heating of the heated food will be controlled to stop to ensure that the food doneness meets the requirements. What is achieved is a kind of intelligent food heating control, which does not require the use of external or The built-in temperature sensor obtains the temperature of the food, and does not need to rely on the experience of the cook to judge the doneness of the food. It can realize intelligent adjustment according to the characteristics of the food heating device, achieve the best cooking effect, and solve the difficulty of controlling the cooking doneness of the existing food. technical problem.

Step S18: The hyperspectral identification module acquires the hyperspectral image of the heating components in the food heating device.

After the food is heated, the heating components in the food heating device, such as baking pans, trays, iron racks, etc., have a high temperature. If the user takes the heated food at this time, it is easy to cause burns and other injuries to the user.

Step S19: Determine the temperature of the heating component based on the component hyperspectral image.

Since hyperspectral images use hyperspectral sensors in the ultraviolet, visible, near-infrared and mid-infrared regions of the electromagnetic spectrum, the target area is simultaneously imaged in tens to hundreds of continuous and subdivided spectral bands. Therefore, based on hyperspectral imaging , can analyze the temperature of the surface of the object.

After the food is heated, the hyperspectral recognition module acquires the component hyperspectral image of the heating component, and obtains the temperature of each heating component through the component hyperspectral image analysis.

Step S20: Display the temperature information of the heating component.

By displaying the temperature of these heating components on the display module of the food heating device, the user can be reminded to avoid accidental scalding caused by negligence and forgetting the high temperature in the food heating device during the process of taking food.

Or, step S21: determine whether the temperature of the heating element is lower than the set temperature.

Set a safe set temperature that will not cause burns to the user. After the food is heated, wait for the cooling of the food heating device. During the cooling process, the temperature of the heating part is analyzed through the hyperspectral image, and the temperature of the heating part is reduced to the set temperature. After the temperature,

Step S22: Send out a reminder message that the food is heated.

It reminds users that food can be taken safely by means of sound and light, voice, display, etc., without causing accidental burns, which improves the user experience and product quality.

Based on the above proposed food heating control method, as shown in FIG. 2 , the present application also proposes a food heating device, which includes a hyperspectral identification module 21 , a food information judgment module 22 , a doneness judgment module 23 and a control module 24 .

The hyperspectral identification module 21 is placed in the food heating device, and is used to obtain hyperspectral images of the heated food; the food information determination module 22 is used to determine the surface texture and color information of the heated food based on the hyperspectral images; the doneness determination module 23 is used for Based on the surface texture and color information, it is determined whether the cookedness of the heated food reaches the set cookedness; if so, the control module 24 is configured to control to stop the heating of the heated food.

The food heating device further includes a weight identification module 26, a heating time setting module 27 and/or a heating power setting module 28; the weight identification module 26 is used to obtain weight information of the heated food; the food information judgment module 22 is also used to The spectral image determines the type of the heated food; the heating time setting module 27 is used to set the heating time of the heated food based on the type and weight information of the heated food; the heating power setting module 28 is used to set the type and weight information of the heated food Heating power for heating food.

There is a storage module 25 in the food heating device, and the storage module stores the corresponding heating time and/or heating power of various types of food under different weights. The type of food and the weight information of the heated food are inquired into the storage module to obtain the corresponding heating time and/or heating power, and then the heating procedure is started according to the query result.

Or, in practical applications, users have different requirements for the degree of doneness. Usually, the food heating device is equipped with a selection program for the user to operate. The user can input the heated food into the food heating device according to his own needs through the control panel. Heating doneness level information, such as selecting medium rare, medium rare, fully cooked, etc., and the storage module 25 stores the heating time and/or heating time corresponding to different degrees of doneness of various types of food under different weights. Fire power, after the user puts the heated food into the food heating device, the food heating device sets the heating time and/or heating power of the heated food according to the type of the heated food, the weight information and the heating doneness level information, and then according to the query result Start the heating program.

The storage module 25 also stores a set of correspondences between food surface texture and color and food doneness. After obtaining the surface texture and color of the food through hyperspectral image analysis, the storage module can be queried to obtain the cooked food.

The food heating device further includes an input module 29 for inputting heating doneness level information; the heating time setting module 27 is further used for setting the heating time of the heated food based on the type, weight information and heating doneness level information of the heated food ; The heating power setting module 28 is also used to set the heating power for heating the food based on the type, weight information and heating doneness level information of the heating food.

The food heating device includes a heating component 30, a heating component temperature determination module 31 and a display module 32; the hyperspectral identification module 21 is further configured to acquire a component hyperspectral image of the heating component 30 after the control module 24 controls to stop heating the heated food The heating part temperature determination module 31 is used to determine the temperature of the heating part based on the hyperspectral image of the part;

The food heating device further includes a heating component temperature judgment module 33 and a reminder module 34; the heating component temperature judgment module 33 is used to judge whether the temperature of the heating component 30 is lower than the set temperature, and if so, the reminder module 34 is used to issue a food heating completion reminder information, such as a display module 32, a lamp, a speaker or a buzzer, and the like.

In the above-mentioned food heating control method and food heating device proposed in this application, a hyperspectral image of the heated food is obtained through a hyperspectral identification module such as a hyperspectral sensor, and the type, surface texture, and surface color of the heated food are analyzed based on the hyperspectral imaging technology. , surface temperature and other information, combined with this information to judge the doneness of the heated food, and control to stop the heating when the doneness reaches the set doneness, which realizes a kind of intelligent food heating control, without using an external or built-in temperature sensor to obtain the information of the food. The temperature also does not need to rely on the experience of the cook to judge the cookedness of the food, and can realize intelligent adjustment according to the characteristics of the food heating device to achieve the best cooking effect, which solves the technical problem of difficult control of the existing cooked food heating.

It should be noted that a hyperspectral recognition module, such as a hyperspectral sensor, obtains a hyperspectral image of an object based on the spectral imaging technology, and can determine the surface temperature, texture, color, and type of the object based on any existing analysis method of the hyperspectral imaging technology. and other information, which are not specifically described in the embodiments of the present application.

It should be pointed out that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essential scope of the present invention, It should also belong to the protection scope of the present invention.

Claims (6)

1. A food heating control method, characterized in that, comprising: The hyperspectral recognition module obtains hyperspectral images of heated food; Determine the surface texture and color information of the heated food based on the hyperspectral image; Based on the surface texture and color information, it is judged whether the cookedness of the heated food reaches the set cookedness; if so, controlling to stop heating the heated food; Wherein, the hyperspectral module is placed in a food heating device for heating the heated food; After controlling to stop heating the heated food, the method further includes: The hyperspectral identification module acquires a hyperspectral image of a heating element in the food heating device; determining the temperature of the heating component based on the hyperspectral image of the component; display the temperature information of the heating element; After determining the temperature of the heated component based on the component hyperspectral image, the method further includes: Determine whether the temperature of the heating component is lower than the set temperature, if so, Send out a reminder message that food heating is complete. 2. The food heating control method according to claim 1, wherein before judging the surface texture and color information of the heated food based on the hyperspectral image, the method further comprises: determining the type of the heated food based on the hyperspectral image, and The weight identification module obtains the weight information of the heated food; The heating time and/or the heating power of the heated food is set based on the type of the heated food and the weight information. 3. The food heating control method according to claim 2, characterized in that, before setting the heating time and/or heating power of the heated food based on the type of the heated food and the weight information, the method Also includes: Receive input heating doneness level information; Then, the heating time and/or the heating power of the heated food is set based on the type of the heated food and the weight information, specifically: Based on the type of the heated food, the weight information and the heating doneness level information, the heating time and/or the heating power of the heated food is set. 4. A food heating device, characterized in that it comprises a hyperspectral identification module, a food information judgment module, a doneness judgment module and a control module; the hyperspectral identification module, placed in the food heating device, for acquiring hyperspectral images of the heated food; the food information judgment module, configured to judge the surface texture and color information of the heated food based on the hyperspectral image; The doneness judging module is used to judge whether the doneness of the heated food reaches the set doneness based on the surface texture and color information; if so, the control module, for controlling to stop heating the heated food; The food heating device includes a heating part, a heating part temperature determination module and a display module; The hyperspectral identification module is further configured to acquire a component hyperspectral image of the heating component after the control module controls to stop heating the heated food; the heating part temperature determination module for determining the temperature of the heating part based on the hyperspectral image of the part; the display module for displaying the temperature of the heating component; The food heating device further includes a heating component temperature judgment module and a reminder module; The heating component temperature judgment module is used to judge whether the temperature of the heating component is lower than the set temperature, and if so, The reminding module is used for sending out reminding information that the food is heated. 5. The food heating device according to claim 4, wherein the food heating device further comprises a weight identification module, a heating time setting module and/or a heating power setting module; the weight identification module, for acquiring the weight information of the heated food; The food information judgment module is further configured to determine the type of the heated food based on the hyperspectral image; the heating time setting module, configured to set the heating time of the heated food based on the type of the heated food and the weight information; The heating power setting module is configured to set the heating power of the heating food based on the type of the heating food and the weight information. 6. The food heating device according to claim 5, wherein the food heating device further comprises an input module; The input module is used for inputting the information of heating maturity level; The heating time setting module is further configured to set the heating time of the heated food based on the type of the heated food, the weight information and the heating doneness level information; The heating power setting module is further configured to set the heating power of the heating food based on the type of the heating food, the weight information and the heating doneness level information.

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