CN111110006B

CN111110006B - Control method and device of food heating device, cooking appliance and storage medium

Info

Publication number: CN111110006B
Application number: CN201811291500.XA
Authority: CN
Inventors: 刘经生; 马志海; 王志锋; 刘志才; 区达理; 刘传兰; 雷俊; 邓家华; 杨保民; 潘典国; 周忠宝; 周亚; 冯江平; 韩平英
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2021-06-01
Anticipated expiration: 2038-10-31
Also published as: CN111110006A

Abstract

The invention provides a control method of a food heating device, a cooking appliance and a storage medium, wherein the control method of the food heating device comprises the following steps: heating the food container in a designated heating mode to perform preheating treatment; detecting the temperature change of the food container according to a preset time interval in the preheating process; and comparing the size relationship between the temperature change and the preset temperature change, and determining whether the food container is filled with the materials or not according to the specified heating mode and the size relationship. By the technical scheme, whether materials are placed in the food container can be accurately detected before the automatic cooking process is executed, so that the reliability of the cooking process is improved, the overflow condition in the cooking process is reduced, and the cooking taste and the nutritive value of food are improved.

Description

Control method and device of food heating device, cooking appliance and storage medium

Technical Field

The invention relates to the technical field of cooking, in particular to a control method of food heating equipment, control equipment of the food heating equipment, a cooking appliance and a computer readable storage medium.

Background

In order to simplify the operation steps of the user and shorten the cooking waiting time, an automatic rice cooker is developed, which can automatically execute the processes of rice feeding, water feeding, rice washing water discharging, rice feeding into a pot, heating cooking, heat preservation and the like.

In the related art, under sudden power failure or other emergency situations, the automatic rice cooker terminates the automatic cooking process and materials still remain in the food container, so when the automatic rice cooker is powered on again to perform cooking operation, the cooking appliance may directly supply water to the food container (generally comprising an upper cover, an inner pot and an outer pot, wherein the inner pot is used for containing edible materials) under the condition that whether the residual materials exist or not, which not only causes the cooking taste to be reduced, but also causes the food nutrients to be lost after the residual materials are cooked for a long time, in addition, the residual materials also cause the accommodating space in the food container to be reduced, and further causes the liquid in the food container to overflow, which seriously affects the operation reliability and the cooking effect of the automatic rice cooker.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, it is an object of the present invention to provide a control method of a food heating apparatus.

Another object of the present invention is to provide a control device for a food heating device.

Another object of the present invention is to provide a cooking appliance.

It is another object of the present invention to provide a computer-readable storage medium.

In order to achieve the above object, according to an embodiment of a first aspect of the present invention, there is provided a control method of a food heating apparatus, including: heating the food container in a designated heating mode to perform preheating treatment; detecting the temperature change of the food container according to a preset time interval in the preheating process; and comparing the size relationship between the temperature change and the preset temperature change, and determining whether the food container is filled with the materials or not according to the specified heating mode and the size relationship.

In the technical scheme, the food container is heated in the appointed heating mode to be preheated, the size relation between the temperature change and the preset temperature change is compared, whether the materials are placed in the food container is determined according to the appointed heating mode and the size relation, whether the materials are placed in the food container can be accurately detected before the automatic cooking process is executed, the reliability of the cooking process is improved, the occurrence of overflow in the cooking process is reduced, and meanwhile, the cooking taste and the nutritive value of food are favorably improved.

It can be confirmed based on a large amount of experimental data that when the food container is filled with the materials, the materials can absorb most of the heat for heating the food container, therefore, under any one same specified heating mode, the local heating of the food container without the materials is usually higher than the local heating of the food container with the materials, based on this, through the temperature detection in the preheating process, whether the materials are filled in the food container can be accurately judged, no other sensor is needed to be additionally arranged, and the production cost and the research and development time of the product can be effectively saved.

In any of the above technical solutions, preferably, before the heating the food container in the designated heating mode for performing the preheating treatment, the method further includes: heating the food container without the materials inside in any one designated heating mode; the temperature change of the food container without material inside in any one of the heating modes is recorded and recorded as the preset temperature change.

According to the technical scheme, the food container without the materials inside is heated in any one designated heating mode, the temperature change of the food container without the materials inside in any one designated heating mode is recorded and recorded as the preset temperature change, and the accuracy and the reliability of detecting whether the materials are placed in the food container are further improved.

Specifically, since the automatic rice cooker is usually preset with various designated heating modes, for example, according to a heating duration power curve or a heating duration duty ratio curve or a heating duration temperature curve, as well as continuous full power heating (duty ratio of 1) or intermittent heating (duty ratio of less than 1 and greater than zero), as well as heating the bottom of the food container alone, heating the side of the food container alone, or heating both the bottom and the side of the food container simultaneously.

In any of the above technical solutions, preferably, the comparison of the magnitude relationship between the temperature change and the preset temperature change, and the determination of whether the food container has the material placed therein according to the specified heating mode and the magnitude relationship specifically includes: determining a preset temperature change corresponding to a specified heating mode; comparing whether the temperature change is greater than or equal to a preset temperature change; and when the temperature change is determined to be larger than or equal to the preset temperature change, determining that no material is placed in the food container.

In the technical scheme, the preset temperature change corresponding to the appointed heating mode is determined, and when the temperature change is determined to be larger than or equal to the preset temperature change, the materials are determined not to be placed in the food container, so that the reliability and effectiveness of a subsequent heating process can be effectively guaranteed, the failure rate of a cooking appliance is reduced, and in addition, the materials added into the food container are monitored, so that the overflow in the food container can be effectively avoided.

In any of the above technical solutions, preferably, the magnitude relationship between the temperature change and the preset temperature change is compared, and whether the food container is filled with the material is determined according to the specified heating mode and the magnitude relationship, and the method specifically further includes: determining a preset temperature change corresponding to the specified heating mode, wherein the preset temperature change comprises a preset top temperature change and/or a preset bottom temperature change; analyzing a top temperature change and/or a bottom temperature change included in the temperature change; comparing whether the top temperature variation is greater than or equal to a preset top temperature variation and/or comparing whether the bottom temperature variation is greater than or equal to a preset bottom temperature variation; and when the top temperature change is determined to be larger than or equal to the preset top temperature change and/or the comparison bottom temperature change is larger than or equal to the preset bottom temperature change, determining that the food container is not filled with the materials.

In the technical scheme, the materials in the food container are generally accumulated at the bottom of the food container in a centralized mode, and steam generated in the material heating process is exhausted from the top of the food container, so that the temperature changes of the bottom and the top of the food container can reflect the heat absorption capacity of the food container, and the possibility and the accuracy of detecting whether the materials are placed in the food container can be further improved by independently comparing whether the temperature change of the top is larger than or equal to the temperature change of the preset top or independently comparing whether the temperature change of the bottom is larger than or equal to the temperature change of the preset bottom or simultaneously comparing whether the temperature change of the top is larger than or equal to the temperature change of the preset top and comparing whether the temperature change of the bottom is larger than or equal to the temperature change of the preset bottom.

Wherein, because the temperature rise of the food container is reduced mainly based on the heat absorption of the materials in the food container, the amount of the materials in the food container is directly related to the temperature change of the food container, especially when the materials in the food container are less, the top temperature change or the bottom temperature change of the food container is detected independently, and whether the materials are placed in the food container cannot be determined, at this time, the top temperature change and the preset top temperature change of the food container are further compared simultaneously, and the bottom temperature change and the preset bottom temperature change are compared, when the materials in the food container are more, if the top temperature change of the food container is determined to be smaller than the preset top temperature change by independent comparison, or the bottom temperature change of the food container is determined to be smaller than the preset bottom temperature change by independent comparison, the materials placed in the food container can be directly determined, at this point, the subsequent automatic cooking process is terminated and a corresponding prompt is generated to instruct the user to clear the contents of the food container.

In any of the above technical solutions, preferably, the heating of the food container in a designated heating mode for preheating treatment specifically includes: and respectively controlling the two groups of heating assemblies to preheat the bottom and the side of the food container.

In the technical scheme, the preheating treatment is carried out on the bottom and the side of the food container by respectively controlling the two groups of heating assemblies, so that the heating mode of the food container for preheating treatment is enriched, and in addition, the time and the power of the preheating control curve can be adjusted or corrected based on the consideration of power reduction, and the formal cooking process cannot be influenced.

In any of the above technical solutions, preferably, the method further includes: detecting an instruction for starting the food heating equipment to cook; stopping heating the food container and sending a prompt signal when the material is determined to be placed in the food container after the preheating treatment; controlling the food heating apparatus to enter automatic cooking upon determining that the material is not placed in the food container.

In the technical scheme, whether the materials are placed in the food container is detected when the instruction for cooking is detected, and when the materials are not placed in the food container, the food heating equipment is controlled to enter automatic cooking, food can be discharged, remained in the last cooking process, and the user can be prevented from opening the cover temporarily and adding the food, so that the operation reliability of the cooking appliance is improved, and the probability of occurrence of abnormal conditions such as overflow, clamping, sticking and the like in the cooking process is effectively reduced.

In any of the above technical solutions, preferably, before the heating the food container in the designated heating mode to perform the preheating processing step, the method further includes: detecting whether a power failure record of the food container during last automatic cooking is stored; and if the power failure record is detected to be stored, determining that the step of heating the food container in a designated heating mode for preheating treatment needs to be executed.

In the technical scheme, when the power supply of the cooking appliance is suddenly cut off or the power supply of the user is manually cut off, the cover opening operation cannot be detected, and the user may add materials into the food container at any time, so that the step of heating the food container in a specified heating mode for preheating treatment is determined by detecting whether the power failure record of the last automatic cooking of the food container is stored or not, particularly detecting that the power failure record is stored, and incomplete records caused by power failure can be further overcome, and the reliability and accuracy of detecting whether the materials exist in the food container or not are further improved.

In any of the above technical solutions, preferably, before the heating the food container in the designated heating mode to perform the preheating processing step, the method further includes: detecting whether the cover opening record after the last automatic cooking is stored or not; and if the cover opening record is detected to be stored, determining that the step of heating the food container in a specified heating mode to perform preheating treatment needs to be performed.

In the technical scheme, after the last automatic cooking is finished, the user finishes the automatic cooking process by using the cooking appliance, after the food container is cleaned, the next time of automatic cooking can be directly carried out, since the user typically checks the cleanliness of the interior of the food container or manually adds materials during the above-described time period, therefore, by detecting whether the record of the cover opening after the last automatic cooking is stored, particularly, detecting that the record of the cover opening is stored, determining that the step of heating the food container in the specified heating mode for preheating treatment needs to be executed, whether the material exists in the food container can be detected according to the record of the cover opening, not only the reliability of the automatic cooking process is improved, meanwhile, the manual operation of the user is efficiently combined with the automatic cooking step to further improve the cooking efficiency.

According to an aspect of the second aspect of the present invention, there is provided a control apparatus of a food heating apparatus, comprising: a heating module for heating the food container in a designated heating mode for preheating treatment; the detection module is used for detecting the temperature change of the food container according to a preset time interval in the preheating process; and the determining module is used for comparing the size relationship between the temperature change and the preset temperature change and determining whether the food container is filled with the materials or not according to the specified heating mode and the size relationship.

In any of the above technical solutions, preferably, the heating module is further configured to: heating the food container without the materials inside in any one designated heating mode; the control device of the food heating device further comprises: and the recording module is used for recording the temperature change of the food container without the materials inside in any one specified heating mode and recording the temperature change as the preset temperature change.

In any of the above technical solutions, preferably, the determining module is further configured to: determining a preset temperature change corresponding to a specified heating mode; the determination module is further configured to: comparing whether the temperature change is greater than or equal to a preset temperature change; the determination module is further configured to: and when the temperature change is determined to be larger than or equal to the preset temperature change, determining that no material is placed in the food container.

In any of the above technical solutions, preferably, the determining module is further configured to: determining a preset temperature change corresponding to the specified heating mode, wherein the preset temperature change comprises a preset top temperature change and/or a preset bottom temperature change; the control device of the food heating device further comprises: the analysis module is used for analyzing the top temperature change and/or the bottom temperature change included in the temperature change; the determination module is further configured to: comparing whether the top temperature variation is greater than or equal to a preset top temperature variation and/or comparing whether the bottom temperature variation is greater than or equal to a preset bottom temperature variation; the determination module is further configured to: and when the top temperature change is determined to be larger than or equal to the preset top temperature change and/or the comparison bottom temperature change is larger than or equal to the preset bottom temperature change, determining that the food container is not filled with the materials.

In any of the above technical solutions, preferably, the heating module is further configured to: and respectively controlling the two groups of heating assemblies to preheat the bottom and the side of the food container.

In any one of the above technical solutions, preferably, the detection module is further configured to: detecting an instruction for starting the food heating equipment to cook; the determination module is further to: stopping heating the food container and sending a prompt signal when the material is determined to be placed in the food container after the preheating treatment; the determination module is further to: controlling the food heating apparatus to enter automatic cooking upon determining that the material is not placed in the food container.

In any one of the above technical solutions, preferably, the detection module is further configured to: detecting whether a power failure record of the food container during last automatic cooking is stored; the determination module is further to: and if the power failure record is detected to be stored, determining that the step of heating the food container in a designated heating mode for preheating treatment needs to be executed.

In any one of the above technical solutions, preferably, the detection module is further configured to: detecting whether the cover opening record after the last automatic cooking is stored or not; the determination module is further to: and if the cover opening record is detected to be stored, determining that the step of heating the food container in a specified heating mode to perform preheating treatment needs to be performed.

According to an aspect of the third aspect of the present invention, there is provided a cooking appliance including: a memory, a processor and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the method of controlling a food heating apparatus as defined in any one of the above claims; and/or the control device of the food heating device defined in any one of the above technical solutions.

The cooking appliance provided by the embodiment of the third aspect of the present invention has all the advantages of any of the embodiments of the second aspect, and therefore, the description thereof is omitted here.

According to an aspect of the fourth aspect of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed, implements a method of controlling a food heating apparatus as defined in any one of the above aspects.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic flow chart of a control method of a food heating apparatus according to a first embodiment of the invention;

fig. 2 shows a schematic flow chart of a control method of a food heating apparatus according to a second embodiment of the invention;

fig. 3 is a schematic graph showing a bottom temperature variation of a control method of a food heating apparatus according to a third embodiment of the present invention;

fig. 4 is a schematic graph showing a top temperature variation of a control method of a food heating apparatus according to a fourth embodiment of the present invention;

fig. 5 is a heating control diagram showing a preheating process of the control method of the food heating apparatus according to the fifth embodiment of the present invention;

fig. 6 is a heating control diagram showing a preheating process of the control method of the food heating apparatus according to the sixth embodiment of the present invention;

fig. 7 is a heating control diagram showing a preheating process of the control method of the food heating apparatus according to the seventh embodiment of the present invention;

fig. 8 is a heating control diagram showing a preheating process of the control method of the food heating apparatus according to the eighth embodiment of the present invention;

fig. 9 shows a schematic block diagram of a control device of a food heating device according to embodiment nine of the present invention;

fig. 10 shows a schematic block diagram of a cooking appliance according to an embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The first embodiment is as follows:

fig. 1 shows a schematic flow chart of a control method of a food heating apparatus according to a first embodiment of the invention.

As shown in fig. 1, a control method of a food heating apparatus according to a first embodiment of the present invention includes: step S102, heating the food container in a designated heating mode to perform preheating treatment; step S104, detecting the temperature change of the food container according to a preset time interval in the preheating process; and S106, comparing the size relation between the temperature change and the preset temperature change, and determining whether the food container is filled with the materials or not according to the specified heating mode and the size relation.

In addition, it is worth pointing out in particular that the method for detecting the contents of the food container according to the present application is performed when the cooking appliance is powered on or when the upper lid of the cooking appliance is opened.

Example two:

fig. 2 shows a schematic flow chart of a control method of a food heating apparatus according to a second embodiment of the invention.

As shown in fig. 2, the control method of the food heating apparatus according to the second embodiment of the present invention includes: step S202, reading the temperatures of the bottom sensor and the side sensor of the cooking appliance, and respectively recording the temperatures as tb0 and tt 0; step S204, in the preheating process of any one designated heating mode, calculating the temperature change of tb0 and tt0 according to a preset time interval, and respectively recording the temperature change as delta tb and delta tt; step S206, acquiring a preset bottom temperature change and a preset top temperature change corresponding to any one specified heating mode, and respectively recording the preset bottom temperature change and the preset top temperature change as Delta Tb and Delta Tt; step S208, judging whether the delta Tb is larger than or equal to the delta Tb and the delta Tt is larger than or equal to the delta Tt, if so, executing step S210, and if not, executing step S212; step S210, determining that no material is placed in the food container; step S212, determining that the food container is filled with the material.

Preferably, the duration of the preheating treatment is set to 10 seconds to 120 seconds.

Based on the technical scheme of the second embodiment, the data results shown in tables 1 to 4 below are obtained in the experimental process.

Table 1 the experimental data when the inner pot is not holding food (empty pot) are as follows (temperature unit is degree:):

TABLE 2 Experimental data when 0.5 cup of rice was placed in the inner pot are as follows (temperature in degrees:. degree. C.):

table 3 the experimental data for 1 cup of rice placed in the inner pot are as follows (temperature unit is degree:. degree. C.):

TABLE 4 Experimental data for 2 cups of rice placed in the inner pot are as follows (temperature in degrees:. degree. C.):

example three:

fig. 3 shows a schematic graph of bottom temperature variation of the control method of the food heating apparatus according to the third embodiment of the present invention.

As shown in fig. 3, the Δ tb data shown in tables 1 to 4 in example two are graphically depicted, including: five bottom temperature change curves a1 collected during the preheating process when no food is stored in the inner pot (empty pot), five bottom temperature change curves a2 collected during the preheating process when 0.5 cup of rice is placed in the inner pot, five bottom temperature change curves A3 collected during the preheating process when 1 cup of rice is placed in the inner pot, and five bottom temperature change curves a4 collected during the preheating process when 2 cups of rice is placed in the inner pot.

Example four:

fig. 4 is a schematic graph showing a top temperature variation of the control method of the food heating apparatus according to the fourth embodiment of the present invention.

As shown in fig. 4, the Δ tt data shown in tables 1 to 4 in example two is plotted, including: five top temperature change curves B1 collected during the preheating process when no food was stored in the inner pot (empty pot), five top temperature change curves B2 collected during the preheating process when 0.5 cup of rice was placed in the inner pot, five top temperature change curves B3 collected during the preheating process when 1 cup of rice was placed in the inner pot, and five top temperature change curves B4 collected during the preheating process when 2 cups of rice were placed in the inner pot.

It can be known from the embodiment of fig. 3 and 4 that the larger the amount of food placed in the inner pot, the smaller the bottom temperature rise and the upper cover temperature rise in the preheating treatment, but when the amount of food placed in the inner pot is smaller (for example, less than or equal to 1 cup of rice), it is preferable to determine by combining the bottom temperature rise and the upper cover temperature rise, and it is not suitable to determine whether the inner pot has the food by only the bottom temperature rise or the upper cover temperature rise, so that the probability of misrecognition can be reduced.

Preferably, the preset bottom temperature change Δ Tb and the preset top temperature change Δ Tt are preset to 25 ℃ and 6 ℃, respectively.

The heating method for heating the food container for preheating treatment in the present application is illustrated by the embodiments shown in fig. 5 to 8, and includes, but is not limited to, the following heating methods, which can be a single heating method or a combination of heating methods, wherein the cooking appliance includes two sets of heating assemblies for heating the bottom and the side of the food container, respectively.

Example five:

fig. 5 shows a heating control diagram of the preheating process of the control method of the food heating apparatus according to the fifth embodiment of the present invention.

As shown in fig. 5, n heating cycles are set, in each heating cycle, a bottom heating process, a side heating process and a stop heating process are sequentially performed, each process is 4 seconds, the total preheating time is 12 × n seconds, and n is a positive integer greater than or equal to 1.

Example six:

fig. 6 shows a heating control diagram of the preheating process of the control method of the food heating apparatus according to the sixth embodiment of the present invention.

As shown in fig. 6, n heating cycles are set, in each heating cycle, the bottom heating process and the side heating process are sequentially performed, each process time length is 4 seconds, the total preheating time length is 8 × n seconds, and n is a positive integer greater than or equal to 1.

Example seven:

fig. 7 shows a heating control diagram of the preheating process of the control method of the food heating apparatus according to the seventh embodiment of the present invention.

As shown in fig. 7, n heating cycles are set, in each heating cycle, the simultaneous heating process and the heating stop process are sequentially performed, the time length of each process is 4 seconds, the total preheating time length is 8 × n seconds, and n is a positive integer greater than or equal to 1.

Wherein the simultaneous heating process means that the top and the bottom are heated simultaneously.

Example eight:

fig. 8 shows a heating control diagram of the preheating process of the control method of the food heating apparatus according to the eighth embodiment of the present invention.

As shown in fig. 8, the food container is continuously heated throughout the preheating period.

Example nine:

fig. 9 shows a schematic block diagram of a control device of a food heating device according to embodiment nine of the present invention.

As shown in fig. 9, the control device 900 of the food heating device according to the ninth embodiment of the present invention includes: a heating module 902 for heating the food container in a designated heating mode for preheating treatment; a detection module 904 for detecting a temperature change of the food container at a preset time interval during the preheating process; a determining module 906, configured to compare a magnitude relationship between the temperature change and a preset temperature change, and determine whether the food container has the material placed therein according to the specified heating mode and the magnitude relationship.

In any of the above technical solutions, preferably, the heating module 902 is further configured to: heating the food container without the materials inside in any one designated heating mode; the control device 900 of the food heating device further comprises: the recording module 908 is used for recording the temperature change of the food container without material inside in any specific heating mode and recording the temperature change as a preset temperature change.

In any of the above technical solutions, preferably, the determining module 906 is further configured to: determining a preset temperature change corresponding to a specified heating mode; the determining module 906 is further configured to: comparing whether the temperature change is greater than or equal to a preset temperature change; the determining module 906 is further configured to: and when the temperature change is determined to be larger than or equal to the preset temperature change, determining that no material is placed in the food container.

In any of the above technical solutions, preferably, the determining module 906 is further configured to: determining a preset temperature change corresponding to the specified heating mode, wherein the preset temperature change comprises a preset top temperature change and/or a preset bottom temperature change; the control device 900 of the food heating device further comprises: an analyzing module 910, configured to analyze a top temperature change and/or a bottom temperature change included in the temperature change; the determining module 906 is further configured to: comparing whether the top temperature variation is greater than or equal to a preset top temperature variation and/or comparing whether the bottom temperature variation is greater than or equal to a preset bottom temperature variation; the determining module 906 is further configured to: and when the top temperature change is determined to be larger than or equal to the preset top temperature change and/or the comparison bottom temperature change is larger than or equal to the preset bottom temperature change, determining that the food container is not filled with the materials.

In any of the above technical solutions, preferably, the heating module 902 is further configured to: and respectively controlling the two groups of heating assemblies to preheat the bottom and the side of the food container.

In any of the above technical solutions, preferably, the detecting module 904 is further configured to: detecting an instruction for starting the food heating equipment to cook; the determining module 906 is further configured to: stopping heating the food container and sending a prompt signal when the material is determined to be placed in the food container after the preheating treatment; the determining module 906 is further configured to: controlling the food heating apparatus to enter automatic cooking upon determining that the material is not placed in the food container.

In any of the above technical solutions, preferably, the detecting module 904 is further configured to: detecting whether a power failure record of the food container during last automatic cooking is stored; the determining module 906 is further configured to: and if the power failure record is detected to be stored, determining that the step of heating the food container in a designated heating mode for preheating treatment needs to be executed.

In any of the above technical solutions, preferably, the detecting module 904 is further configured to: detecting whether the cover opening record after the last automatic cooking is stored or not; the determining module 906 is further configured to: and if the cover opening record is detected to be stored, determining that the step of heating the food container in a specified heating mode to perform preheating treatment needs to be performed.

Example ten:

As shown in fig. 10, a cooking appliance 1000 according to a tenth embodiment of the present invention includes: a memory, a processor and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the method of controlling a food heating apparatus as defined in any one of the above claims; and/or the control device 900 of the food heating device as defined in any of the previous claims.

The control device 900 of the food heating device is compatible with controllers such as an MCU, a CPU, a DSP, a single chip microcomputer, and an embedded device, the heating module 902 may include an infrared heating component and a corresponding driving circuit, an electromagnetic heating component and a corresponding driving circuit, and a resistance heating component and a corresponding driving circuit, the detection module 904 may include at least one of temperature sensors of various principles, the determination module 906 and the analysis module 910 may include a logic calculation device, a general I/O interface, a rectifier, a filter, a comparator, an inverter, and a power switch, and the recording module 908 may include a memory.

Example eleven:

according to an eleventh embodiment of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed, implements the steps of: heating the food container in a designated heating mode to perform preheating treatment; detecting the temperature change of the food container according to a preset time interval in the preheating process; and comparing the size relationship between the temperature change and the preset temperature change, and determining whether the food container is filled with the materials or not according to the specified heating mode and the size relationship.

In any of the above technical solutions, preferably, before the heating the food container in the designated heating mode to perform the preheating processing step, the method further includes: detecting whether the cover opening record after the last automatic cooking is stored or not; and if the power failure record is detected to be stored, determining that the step of heating the food container in a designated heating mode for preheating treatment needs to be executed.

In the technical scheme, after the last automatic cooking is finished, the user finishes the automatic cooking process by using the cooking appliance, after the food container is cleaned, the next time of automatic cooking can be directly carried out, since the user typically checks the cleanliness of the interior of the food container or manually adds materials during the above-described time period, therefore, by detecting whether the uncapping record after the last automatic cooking is stored or not, particularly detecting that the power-down record is stored and determining that the step of heating the food container in the specified heating mode for preheating treatment needs to be executed, whether the materials exist in the food container or not can be detected according to the uncapping record, the reliability of the automatic cooking process is improved, meanwhile, the manual operation of the user is efficiently combined with the automatic cooking step to further improve the cooking efficiency.

The technical scheme of the invention is explained in detail in the above with reference to the accompanying drawings, and the invention provides a control method, equipment, a cooking appliance and a storage medium of food heating equipment, wherein a food container is heated in a specified heating mode to be preheated, and the size relationship between the temperature change and the preset temperature change is compared to determine whether materials are placed in the food container according to the specified heating mode and the size relationship, so that whether the materials are placed in the food container can be accurately detected before an automatic cooking process is executed, the reliability of the cooking process is improved, the occurrence of overflow in the cooking process is reduced, and meanwhile, the cooking taste and the nutritional value of food are favorably improved.

The steps in the method of the invention can be sequentially adjusted, combined and deleted according to actual needs.

The modules in the device of the invention can be merged, divided and deleted according to actual needs.

It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by hardware instructions of a program, and the program may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM), or other Memory, such as a magnetic disk, or a combination thereof, A tape memory, or any other medium readable by a computer that can be used to carry or store data.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method of controlling a food heating apparatus, comprising:

heating the food container in a designated heating mode to perform preheating treatment;

detecting the temperature change of the food container according to a preset time interval in the preheating treatment process;

comparing the size relationship between the temperature change and the preset temperature change, and determining whether materials are placed in the food container according to the designated heating mode and the size relationship;

before the heating the food container in the designated heating mode for the preheating treatment step, the method further comprises the following steps:

detecting whether a power failure record of the food container during last automatic cooking is stored;

and if the power failure record is detected to be stored, determining that the step of heating the food container in a designated heating mode for preheating treatment needs to be executed.

2. The control method of a food heating apparatus according to claim 1, further comprising, before heating the food container in the designated heating mode for the preheating process:

heating the food container without the materials inside in any one of the designated heating modes;

and recording the temperature change of the food container without the material inside in any one of the specified heating modes, and recording the temperature change as the preset temperature change.

3. The method for controlling a food heating apparatus according to claim 1, wherein comparing a magnitude relationship between the temperature change and a preset temperature change, and determining whether the food container has the material placed therein according to the designated heating mode and the magnitude relationship, specifically comprises:

determining a preset temperature change corresponding to the specified heating mode;

comparing whether the temperature change is greater than or equal to the preset temperature change;

determining that the material is not placed in the food container when it is determined that the temperature change is greater than or equal to the preset temperature change.

4. The method of claim 1, wherein comparing the magnitude relationship between the temperature change and a preset temperature change and determining whether material is placed in the food container according to the specified heating mode and the magnitude relationship further comprises:

determining a preset temperature change corresponding to the specified heating mode, wherein the preset temperature change comprises a preset top temperature change and/or a preset bottom temperature change;

analyzing the top temperature change and/or the bottom temperature change included in the temperature change;

comparing whether the top temperature variation is greater than or equal to the preset top temperature variation and/or comparing whether the bottom temperature variation is greater than or equal to the preset bottom temperature variation;

determining that the material is not placed in the food container when it is determined that the top temperature change is greater than or equal to the preset top temperature change and/or when it is compared that the bottom temperature change is greater than or equal to the preset bottom temperature change.

5. The control method of the food heating apparatus according to any one of claims 1 to 4, wherein the heating of the food container in the designated heating mode for the preheating treatment specifically comprises:

and respectively controlling two groups of heating assemblies to perform the preheating treatment on the bottom and the side of the food container.

6. The control method of a food heating apparatus according to any one of claims 1 to 4, further comprising:

detecting an instruction for starting the food heating equipment to cook;

stopping heating the food container and sending a prompt signal when the material is determined to be placed in the food container after the preheating treatment;

controlling the food heating apparatus to enter automatic cooking upon determining that the material is not placed in the food container.

7. The control method of a food heating apparatus according to any one of claims 1 to 4, further comprising, before heating the food container in the designated heating mode to perform the preheating processing step:

detecting whether the cover opening record after the last automatic cooking is stored or not;

and if the cover opening record is detected to be stored, determining that the step of heating the food container in a specified heating mode to perform preheating treatment needs to be performed.

8. A control device for a food heating device, comprising:

a heating module for heating the food container in a designated heating mode for preheating treatment;

the detection module is used for detecting the temperature change of the food container according to a preset time interval in the preheating treatment process;

the determining module is used for comparing the size relationship between the temperature change and the preset temperature change and determining whether materials are placed in the food container according to the specified heating mode and the size relationship;

the detection module is further configured to: detecting whether a power failure record of the food container during last automatic cooking is stored;

the determination module is further to: and if the power failure record is detected to be stored, determining that the step of heating the food container in a designated heating mode for preheating treatment needs to be executed.

9. The control device of a food heating device according to claim 8,

the heating module is further configured to: heating the food container without the materials inside in any one of the designated heating modes;

the control device of the food heating device further comprises:

and the recording module is used for recording the temperature change of the food container without the material inside in any one of the specified heating modes and recording the temperature change as the preset temperature change.

10. The control device of a food heating device according to claim 8,

the determination module is further to: determining a preset temperature change corresponding to the specified heating mode;

the determination module is further to: comparing whether the temperature change is greater than or equal to the preset temperature change;

the determination module is further to: determining that the material is not placed in the food container when it is determined that the temperature change is greater than or equal to the preset temperature change.

11. The control device of a food heating device according to claim 8,

the determination module is further to: determining a preset temperature change corresponding to the specified heating mode, wherein the preset temperature change comprises a preset top temperature change and/or a preset bottom temperature change;

the control device of the food heating device further comprises:

the analysis module is used for analyzing the top temperature change and/or the bottom temperature change included in the temperature change;

the determination module is further to: comparing whether the top temperature variation is greater than or equal to the preset top temperature variation and/or comparing whether the bottom temperature variation is greater than or equal to the preset bottom temperature variation;

the determination module is further to: determining that the material is not placed in the food container when it is determined that the top temperature change is greater than or equal to the preset top temperature change and/or when it is compared that the bottom temperature change is greater than or equal to the preset bottom temperature change.

12. Control device of a food heating device according to any of claims 8 to 11,

the heating module is further configured to: and respectively controlling two groups of heating assemblies to perform the preheating treatment on the bottom and the side of the food container.

13. Control device of a food heating device according to any of claims 8 to 11,

the detection module is further configured to: detecting an instruction for starting the food heating equipment to cook;

the determination module is further to: stopping heating the food container and sending a prompt signal when the material is determined to be placed in the food container after the preheating treatment;

the determination module is further to: controlling the food heating apparatus to enter automatic cooking upon determining that the material is not placed in the food container.

14. Control device of a food heating device according to any of claims 8 to 11,

the detection module is further configured to: detecting whether the cover opening record after the last automatic cooking is stored or not;

the determination module is further to: and if the cover opening record is detected to be stored, determining that the step of heating the food container in a specified heating mode to perform preheating treatment needs to be performed.

15. A cooking appliance, comprising:

memory, a processor and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the control method of a food heating apparatus according to any one of claims 1 to 7; and/or the presence of a gas in the gas,

control device of a food heating device according to any of claims 8-14.

16. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed, carries out the steps of the control method of a food heating apparatus according to any one of claims 1 to 7.