WO2019105077A1

WO2019105077A1 - Method for controlling cooking appliance, and cooking appliance

Info

Publication number: WO2019105077A1
Application number: PCT/CN2018/103151
Authority: WO
Inventors: 何春华; 黎青海; 郑年重; 覃承勇
Original assignee: 广东美的厨房电器制造有限公司; 美的集团股份有限公司
Priority date: 2017-11-29
Filing date: 2018-08-30
Publication date: 2019-06-06
Also published as: CN108006721A

Abstract

A method for controlling a cooking appliance, and a cooking appliance. The method comprises: receiving an operation instruction; determining a food target temperature corresponding to the operation instruction; and controlling a cooking appliance to execute a heating operation according to the food target temperature, detecting the food temperature during execution of the heating operation, and controlling the heat level and the heating time of the cooking appliance according to the temperature and the food target temperature, so as to enable the food temperature reach the food target temperature. The cooking appliance comprises an interaction module (1), a temperature detection module (3), and a control module (2). A readable storage medium on the cooking appliance stores an instruction, and the instruction is used for the cooking appliance to execute the method above. In this way, the cooking appliance is automatically controlled to heat food, and the steps of operating the cooking appliance are simplified.

Description

Method of controlling cooking utensils and cooking appliance

Technical field

The present invention relates to the field of household appliances, and in particular to a method of controlling a cooking appliance and a cooking appliance.

Background technique

At present, the common cooking utensils on the market are complicated to operate, and there are many buttons/steps. For example, an automatic menu operation requires at least five steps. First, the menu function is entered; second, the menu is selected to find the function description; and third, the menu is confirmed; Fourth, choose the amount of weight; fifth, the button starts working. In addition, the user's serving size is difficult to control accurately, and the non-integer gram of food cooking effect is not ideal. In addition, most cooking appliances are open-loop control, and the heating power and time set by the user by experience are not necessarily suitable. Finally, it is difficult for an ordinary cooking appliance to accurately detect and control the temperature of the food, resulting in an unsatisfactory heating or thawing effect.

Summary of the invention

It is an object of embodiments of the present invention to provide a method of controlling a cooking appliance and a cooking appliance that can automatically control the cooking appliance to heat food and simplify the operational steps of the cooking appliance.

In order to achieve the above object, an aspect of an embodiment of the present invention provides a method for controlling a cooking appliance, the method comprising: receiving an operation instruction; determining a food target temperature corresponding to the operation instruction; and determining a food target according to the food target Temperature, controlling the cooking appliance to perform a heating operation, and detecting a temperature of the food during the performing the heating operation, controlling heating heating power and heating time of the cooking appliance according to the temperature and the food target temperature, so as to The temperature of the food reaches the target temperature of the food.

Optionally, the determining a food target temperature corresponding to the operation instruction comprises: detecting a humidity of the food; and determining a water content of the food according to the humidity, and determining a food corresponding to the water content Target temperature.

Optionally, the cooking appliance includes a first setting module for setting a target temperature or a heating fire, the method further comprising: detecting a state of the cooking appliance after receiving an operation of the first setting module by a user And adjusting a heating power of the cooking appliance according to an operation of the first setting module by the user when the cooking appliance is in a heating state; controlling the cooking appliance when the cooking appliance is in a standby state; Entering a constant temperature control state, and setting a target temperature of the cooking appliance according to the operation of the first setting module by the user, and using the target temperature as the food target temperature.

Optionally, the cooking appliance includes a second setting module for setting a heating time or a constant temperature time, the method further comprising: detecting a state of the cooking appliance after receiving an operation of the second setting module by a user And setting a constant temperature time of the cooking appliance according to an operation of the second setting module by the user when the cooking appliance is in a constant temperature control state; when the cooking appliance is in a heating state, according to the The user adjusts the heating time of the cooking appliance by the operation of the second setting module.

Optionally, the method further comprises: displaying information related to the food; wherein the information comprises at least one of: an operation being performed by the cooking appliance, the temperature of the food, operation of the operation Time, remaining time of the operation, target temperature corresponding to the operation, constant temperature time corresponding to the target temperature, temperature profile of the food, and target temperature profile of the food.

Correspondingly, another aspect of an embodiment of the present invention provides a cooking appliance comprising: an interaction module for receiving an operation instruction; a temperature detection module for detecting a temperature of the food; and a control module for: determining a food target temperature corresponding to the operation instruction; and controlling the cooking appliance to perform a heating operation according to the food target temperature, and controlling the temperature detecting module to detect a temperature of the food during performing the heating operation, according to The temperature and the food target temperature control heating heat and heating time of the cooking appliance such that the temperature of the food reaches the food target temperature.

Optionally, the cooking appliance further includes: a humidity detecting module, configured to detect a humidity of the food; and the control module determining the food target temperature corresponding to the operation instruction, comprising: determining a moisture content of the food according to the humidity And determining the food target temperature corresponding to the water content.

Optionally, the cooking appliance further includes: a first setting module, configured to set a target temperature or a heating power; a state detecting module, configured to detect a state of the cooking appliance; the control module is further configured to: receive the user After the operation of the first setting module, controlling the state detecting module to detect a state of the cooking appliance; and when the cooking appliance is in a heating state, according to an operation of the first setting module by the user, Adjusting heating heating power of the cooking appliance; controlling the cooking appliance to enter a constant temperature control state when the cooking appliance is in a standby state, and setting the cooking appliance according to operation of the first setting module by the user The target temperature is taken as the target temperature of the food.

Optionally, the cooking appliance further includes: a second setting module, configured to set a heating time or a constant temperature time; the control module is further configured to: after receiving the operation of the second setting module by the user, controlling the a state detecting module detects a state of the cooking appliance; and, when the cooking appliance is in a constant temperature control state, sets a constant temperature time of the cooking appliance according to an operation of the second setting module by the user; When the cooking appliance is in a heated state, the heating time of the cooking appliance is adjusted according to the operation of the second setting module by the user.

Optionally, the cooking appliance further comprises: a display module for displaying information related to the food; wherein the information comprises at least one of: an operation being performed by the cooking appliance, the temperature of the food The running time of the operation, the remaining time of the operation, the target temperature corresponding to the operation, the constant temperature time corresponding to the target temperature, the temperature profile of the food, and the target temperature profile of the food.

According to the above technical solution, after receiving the operation instruction, determining the food target temperature corresponding to the operation instruction, controlling the cooking appliance to perform the heating operation according to the food target temperature, and detecting the temperature of the food in real time during the performing the heating operation, according to the temperature of the food and The food target temperature controls the heating power of the cooking appliance and the heating time so that the temperature of the food reaches the target temperature of the food. In this way, according to the real-time temperature of the food and the food target temperature corresponding to the operation instruction, the heating fire power and the heating time of the cooking appliance are adjusted, and finally the temperature of the food reaches the food target temperature, thereby realizing automatic control of the cooking appliance to heat the food, and as long as the operation is received The instructions control the cooking appliance into the working program, eliminating the need for additional operating steps and simplifying the operating steps of the cooking appliance.

Other features and advantages of embodiments of the invention will be described in detail in the Detailed Description.

DRAWINGS

The drawings are intended to provide a further understanding of the embodiments of the invention. In the drawing:

1 is a flow chart of a method for controlling a cooking appliance according to an embodiment of the present invention;

2 is a flow chart of a method for controlling a cooking appliance according to another embodiment of the present invention;

3 is a flow chart of a method for controlling a cooking appliance according to another embodiment of the present invention;

4 is a flow chart of a method for controlling a cooking appliance according to another embodiment of the present invention;

FIG. 5 is a flow chart of a method for controlling a cooking appliance according to another embodiment of the present invention; FIG.

6 is a structural block diagram of a cooking appliance according to another embodiment of the present invention;

7 is a structural block diagram of a cooking appliance according to another embodiment of the present invention;

FIG. 8 is a structural block diagram of a cooking appliance according to another embodiment of the present invention; FIG.

FIG. 9 is a schematic diagram of an interaction interface according to another embodiment of the present invention; FIG.

FIG. 10 is a schematic diagram of a display interface according to another embodiment of the present invention;

11 is a system block diagram of a cooking appliance provided in accordance with another embodiment of the present invention.

Description of the reference numerals

1 interaction module 2 control module

3 Temperature detection module 4 Humidity detection module

5 status detection module

Detailed ways

The specific embodiments of the embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the embodiments of the invention.

One aspect of an embodiment of the invention provides a method for controlling a cooking appliance. 1 is a flow chart of a method for controlling a cooking appliance, in accordance with an embodiment of the present invention. As shown in Figure 1, the method includes the following steps.

In step S10, an operation instruction is received. In step S11, the food target temperature corresponding to the operation instruction is determined. In step S12, according to the food target temperature, the cooking appliance is controlled to perform a heating operation, and during the performing the heating operation, the temperature of the food is detected, and according to the temperature and the food target temperature, the heating power and the heating time of the cooking appliance are controlled to make the food The temperature reaches the food target temperature. Wherein, the cooking appliance may be a microwave oven. In addition, there are a variety of operational commands, such as smart heating, smart thawing, hot milk, popcorn, etc., which express the user's desire for the cooking appliance to perform the food. Taking the operation instruction as hot milk as an example, after receiving the instruction of the hot milk, determining the target temperature corresponding to the hot milk, controlling the cooking appliance to perform the heating operation according to the target temperature, and detecting the temperature of the milk in real time, according to the temperature of the milk and The difference in target temperature controls the heating power of the cooking appliance and the heating time, which ultimately causes the temperature of the milk to reach the target temperature. In addition, an algorithm can be used to control the heating power and heating time of the cooking appliance according to the difference between the temperature of the food and the target temperature of the food, and finally the temperature of the food reaches the food target temperature. The algorithm may be one or more of a PID algorithm, a fuzzy algorithm, and an expert control algorithm.

After receiving the operation instruction, determining a food target temperature corresponding to the operation instruction, controlling the cooking appliance to perform a heating operation according to the food target temperature, and detecting the temperature of the food in real time during the performing the heating operation, and controlling cooking according to the temperature of the food and the food target temperature The heating power of the appliance and the heating time allow the temperature of the food to reach the target temperature of the food. In this way, according to the real-time temperature of the food and the food target temperature corresponding to the operation instruction, the heating power and the heating time of the cooking appliance are adjusted, and finally the temperature of the food reaches the target temperature of the food, thereby realizing the automatic control of the cooking appliance to heat the food without inputting the heating firepower and The heating time and the like, and the cooking appliance can be controlled to enter the working program as long as the operation instruction is received, and no other operation steps are required, which simplifies the operation steps of the cooking appliance.

2 is a flow chart of a method for controlling a cooking appliance provided in accordance with another embodiment of the present invention. The method shown in FIG. 2 is different from the method shown in FIG. 1 in that the method shown in FIG. 2 further includes the following steps.

In step S21, the humidity of the food is detected. In step S22, the moisture content of the food is judged based on the humidity of the food, and the food target temperature corresponding to the water content is determined. For example, when the received operation command is "smart heating", the food that needs to be heated is coffee. After receiving the "intelligent heating" operation command, the moisture content of the coffee is detected to determine the food target temperature corresponding to the moisture content of the coffee. In the embodiment of the present invention, the food target temperature corresponding to the water content may be determined by using a clustering judgment manner.

The target temperature and the heating time of the foods with different water contents are different, and the food target temperature corresponding to the water content of the food is determined, and then the heating heat and the heating time of the cooking utensil are controlled according to the real-time temperature of the food and the food target temperature, so that the temperature of the food reaches The target temperature of the food, in this way, realizes the automatic reheating of different foods, which makes the cooking utensils more intelligent, without the type, weight, cooking heat and heating time of the cooking utensils.

3 is a flow diagram of a method for controlling a cooking appliance provided in accordance with another embodiment of the present invention. As shown in FIG. 3, in this embodiment, the method includes the following steps.

In step S30, settings for at least one of: heating fire power, heating time, target temperature, and constant temperature time are received. In step S31, the cooking appliance is controlled to perform a heating operation according to the setting. When the setting of the heating power or the heating time is received, the heating power or the heating time of the cooking appliance is adjusted to the set value. In the case where the setting of the target temperature is received, the heating power and the heating time of the cooking appliance are controlled according to the temperature of the food and the target temperature, and finally the temperature of the food reaches the target temperature. In the case where the setting of the constant temperature time is received, the heating power and the heating time of the cooking appliance are controlled according to the temperature of the food and the target temperature corresponding to the constant temperature time, so that the temperature of the food is maintained at the target temperature for the constant temperature time value.

In the case of receiving the setting of the heating power, the heating time, the target temperature, and the constant temperature time, the cooking appliance is controlled to perform the heating operation according to the setting, so that the user can reheat or cook the food according to his own needs, thereby improving the user. Satisfaction.

4 is a flow chart of a method for controlling a cooking appliance provided in accordance with another embodiment of the present invention. As shown in FIG. 4, in this embodiment, the method includes the following steps. Wherein, in this embodiment, the cooking appliance includes a first setting module for setting a target temperature or heating fire.

In step S40, after receiving the user's operation on the first setting module, the state of the cooking appliance is detected, if it is detected that the cooking appliance is in the heating state, step S41 is performed, and if it is detected that the cooking appliance is in the standby state, step S42 is performed.

In step S41, the cooking appliance is in a heating state, and the heating firepower of the cooking appliance is adjusted according to the operation of the first setting module by the user, that is, at this time, the user operates the first setting module to set the heating firepower.

In step S42, the cooking appliance is in a standby state, controlling the cooking appliance to enter the constant temperature control state, and setting the target temperature of the cooking appliance according to the operation for the first setting module, and using the target temperature as the food target temperature, that is, At this time, the user operates the first setting module to set the food target temperature. After the target temperature of the cooking appliance is set, the heating power and heating time of the cooking appliance are controlled according to the temperature of the food and the target temperature, so that the temperature of the food reaches the target temperature.

In this way, it is achieved to set two parameters, the target temperature and the heating power using a setting module.

Figure 5 is a flow chart of a method for controlling a cooking appliance provided in accordance with another embodiment of the present invention. As shown in FIG. 5, in this embodiment, the method includes the following steps. Wherein, in this embodiment, the cooking appliance comprises a second setting module for setting the heating time or the constant temperature time.

In step S50, after receiving the operation of the second setting module by the user, detecting the state of the cooking appliance, if it is detected that the cooking appliance is in the constant temperature control state, step S51 is performed, and if it is detected that the cooking appliance is in the heating state, step S52 is performed. .

In step S51, the cooking appliance is in the constant temperature control state, and the constant temperature time of the cooking appliance is set according to the operation of the second setting module by the user, that is, the user operates the second setting module to set the constant temperature time. After the constant temperature time is set, the heating power and the heating time of the cooking appliance are controlled according to the temperature of the food and the target temperature corresponding to the constant temperature time, so that the temperature of the food is at the target temperature for a constant temperature time value.

In step S52, the cooking appliance is in a heating state, and the heating time of the cooking appliance is adjusted according to the operation of the second setting module by the user, that is, the user operates the second setting module to set the heating time.

In this way, it is achieved to set two parameters, constant temperature time and heating time using one setting module.

In the embodiment of the present invention, the first setting module and the second setting module may be a knob or an input interface. The user can adjust the parameters by operating the knob. In addition, the user can input values at the input interface to set the target temperature or heating power. Users can set parameters to set up parameters to reheat or cook food according to their own needs, which improves user satisfaction.

Optionally, in the embodiment of the present invention, the cooking appliance may be a microwave oven, the microwave oven uses a frequency converter to control the magnetron to generate microwaves, and the method for controlling the cooking appliance further comprises: detecting an anode current of the magnetron; It is judged according to the anode current whether the magnetron is in an abnormal working state. In addition, the method may also include no-load detection and control to perform no-load detection within 10 s after the microwave oven is operational. The abnormal state detection and no-load detection of the magnetron can ensure the safe use of the microwave oven and improve the life of the microwave oven.

Optionally, in an embodiment of the invention, the method for controlling a cooking appliance further comprises displaying food-related information; wherein the information comprises at least one of: an operation being performed by the cooking appliance, a temperature of the food, an operation of the operation Time, remaining time of operation, target temperature corresponding to operation, constant temperature time corresponding to target temperature, temperature profile of food, and target temperature curve of food. In this way, the user can be made to observe the state of the food in real time, so that the control process of the cooking appliance is transparent.

Accordingly, another aspect of an embodiment of the present invention provides a cooking appliance. Figure 6 is a block diagram showing the structure of a cooking appliance according to another embodiment of the present invention. As shown in FIG. 6, in this embodiment, the cooking appliance comprises an interaction module 1, a control module 2 and a temperature detection module 3. The interaction module 1 is configured to receive an operation instruction; the temperature detection module 3 is configured to detect a temperature of the food; the control module 2 is configured to determine a food target temperature corresponding to the operation instruction, and control the cooking appliance to perform a heating operation according to the food target temperature And during the performing of the heating operation, the temperature detecting module 3 is controlled to detect the temperature of the food, and according to the temperature and the food target temperature, the heating power and the heating time of the cooking appliance are controlled such that the temperature of the food reaches the food target temperature. Wherein, the cooking appliance may be a microwave oven. In addition, there are a variety of operational commands, such as smart heating, smart thawing, hot milk, popcorn, etc., which express the user's desire for the cooking appliance to perform the food. Taking the operation instruction as hot milk as an example, after receiving the instruction of the hot milk, determining the target temperature corresponding to the hot milk, controlling the cooking appliance to perform the heating operation according to the target temperature, and detecting the temperature of the milk in real time, according to the temperature of the milk and The difference in target temperature controls the heating power of the cooking appliance and the heating time, which ultimately causes the temperature of the milk to reach the target temperature. In addition, the control module 2 can combine the algorithm to control the heating power and the heating time of the cooking appliance according to the difference between the temperature of the food and the target temperature of the food, and finally the temperature of the food reaches the target temperature of the food. The algorithm may be one or more of a PID algorithm, a fuzzy algorithm, and an expert control algorithm. In addition, in the embodiment of the present invention, the interaction module 1 may be a TFT touch screen module. The temperature detecting module 3 can be a food probe or an infrared temperature sensor. The food temperature probe is contact temperature measurement, which is used to measure the internal temperature of the food. Because it has high temperature measurement accuracy and is not affected by steam, it can be used for reheating and cooking control. The infrared temperature sensor is non-contact temperature measurement, which is used to measure the surface temperature of food. It is easily affected by steam. The measurement error in high temperature zone (greater than 60 °C) is large, and the accuracy of low temperature zone is high. Therefore, it is mainly used for thawing to make up for food. The lack of temperature probe application is due to the inability of the temperature probe to plunge into the frozen meat.

Figure 7 is a block diagram showing the structure of a cooking appliance according to another embodiment of the present invention. The cooking appliance shown in FIG. 7 is different from the cooking appliance shown in FIG. 6 in that the cooking appliance shown in FIG. 7 further includes a humidity detecting module 4. The humidity detecting module 4 is configured to detect the humidity of the food. In addition, in this embodiment, the control module 2 is configured to determine the water content of the food according to the humidity, and determine a food target temperature corresponding to the water content, and control the cooking appliance to perform heating according to the food target temperature corresponding to the water content. Operation, and during the execution of the heating operation, the temperature detecting module 3 is controlled to detect the temperature of the food, and according to the temperature and the food target temperature, the heating power and the heating time of the cooking appliance are controlled such that the temperature of the food reaches the food target temperature. In the embodiment of the present invention, the humidity detecting module 4 may be a humidity sensor. The humidity sensor is mainly used to measure the amount of water vapor released by the food, thereby determining the water content of the food, and is used for assisting the temperature detection module (such as the food temperature probe) for intelligent heating and cooking control.

Optionally, in the embodiment of the present invention, the interaction module is further configured to receive a setting for at least one of: heating fire power, heating time, target temperature, and constant temperature time; and the control module is further configured to control the cooking appliance to be executed according to the setting Heating operation. When the setting of the heating power or the heating time is received, the heating power or the heating time of the cooking appliance is adjusted to the set value. In the case where the setting of the target temperature is received, the heating power and the heating time of the cooking appliance are controlled according to the temperature of the food and the target temperature, and finally the temperature of the food reaches the target temperature. In the case where the setting of the constant temperature time is received, the heating power and the heating time of the cooking appliance are controlled according to the temperature of the food and the target temperature corresponding to the constant temperature time, so that the temperature of the food is maintained at the target temperature for the constant temperature time value.

Figure 8 is a block diagram showing the structure of a cooking appliance according to another embodiment of the present invention. The cooking appliance shown in FIG. 8 is different from the cooking appliance shown in FIG. 6 in that the cooking appliance shown in FIG. 8 further includes a state detecting module 5. The state detecting module 5 is configured to detect the state of the cooking appliance. In this embodiment, the cooking appliance includes a first setting module for setting a target temperature or a heating power, wherein the first setting module may be disposed on the interaction module or may not be disposed on the interaction module. The control module 2 is configured to control the state detecting module 5 to detect the state of the cooking appliance after receiving the user's operation on the first setting module. When the cooking appliance is in the heating state, the control module 2 adjusts the heating firepower of the cooking appliance according to the operation of the first setting module by the user, that is, the user operates the heating power of the first setting module. When the cooking appliance is in the standby state, the control module 2 controls the cooking appliance to enter the constant temperature control state, and sets the target temperature of the cooking appliance according to the operation of the first setting module by the user, and uses the target temperature as the food target temperature, that is, At the time, the user operates the first setting module to set the food target temperature. After setting the target temperature of the cooking appliance, the control module 2 controls the heating power and the heating time of the cooking appliance according to the temperature of the food and the target temperature, so that the temperature of the food reaches the target temperature. In this way, a setting module is used to set two parameters, the target temperature and the heating power.

Optionally, in the embodiment of the present invention, the cooking appliance may further include a second button for setting a heating time or a constant temperature time, wherein the second setting module may be disposed on the interaction module or not on the interaction module. . The control module is further configured to receive an operation of the second setting module by the user, and the control state detecting module detects the state of the cooking appliance. When the cooking appliance is in the constant temperature control state, the constant temperature time of the cooking appliance is set according to the operation of the second setting module by the user, that is, the user operates the second setting module to set the constant temperature time. After the constant temperature time is set, the control module controls the heating power and the heating time of the cooking appliance according to the temperature of the food and the target temperature corresponding to the constant temperature time, so that the temperature of the food is at the target temperature for a constant temperature time value. When the cooking appliance is in the heating state, the control module adjusts the heating time of the cooking appliance according to the operation of the second setting module by the user, that is, the user operates the second setting module to set the heating time. In this way, it is realized to set two parameters, the constant temperature time and the heating time by using one setting module.

Optionally, in the embodiment of the present invention, the manner in which the interaction module receives the operation instruction may be to set a button related to the operation instruction on the interaction module. For example, a "smart defrosting" button, a "smart heating" button, a "hot milk" button, a "popcorn" button, and other buttons that indicate that the cooking appliance is heating or cooking the food are set on the interactive module. In addition, the interaction module can also receive an instruction to suspend or cancel the ongoing operation of the cooking appliance, or initiate an instruction to perform a heating operation by the cooking appliance, or directly set an instruction to heat the time of 30 seconds. For example, the interaction module contains a button for pausing or canceling, "pause/cancel", and may also include a button for starting the cooking appliance or setting the heating time to 30s, "Start / 30s". According to the description in the above embodiments, the cooking appliance may include a first setting module for setting a target temperature or a heating power, and may further include a second setting module for setting a heating time or a constant temperature time, the first setting module and The second setting module can be disposed on the interaction module, such as a "target temperature/heating firepower" setting module, and a "constant temperature/heating time" setting module. The setting module may be a knob, such as a "target temperature / heating fire" knob, a "constant temperature / heating time" knob. An example of setting a button or knob on an interactive module can be seen in Figure 9. Except for the “Constant Time/Heating Time” knob, all other buttons and knobs are activated with one button. As long as the parameter value changes and does not change within 3 seconds, the cooking device starts working.

The use of buttons or knobs for human-computer interaction will be described below with reference to FIG. When the cooking appliance is working, if the user presses the “pause/cancel” button once, the cooking appliance enters the pause state, and the user can resume normal operation by pressing the “Start/+30s” button; if the user presses two consecutively The “Pause/Cancel” button will cancel the work. When the cooking appliance is in standby, if the user presses the “Start/+30s” button once, the cooking appliance enters the heating state, the default firepower gear position is 100%, and the “Target Temperature/Heating Firepower” knob automatically points and displays 100; the default The heating time is 30s, and the “Constant Temperature/Heating Time” knob points and displays 30. During the heating process, the user can adjust the "target temperature / heating fire" and "constant temperature / heating time" two knobs to adjust the heating power and heating time. Among them, the "target temperature / heating fire" knob can adjust the fire range from 0 to 100%, the adjustment step is 10%; the "constant temperature / heating time" knob can adjust the time range from 0s to 7200s. The “Target Temperature/Heating Fire” and “Constant Temperature/Heating Time” knobs can be changed by rotating the value or by entering data. When the cooking appliance is in standby, if the user adjusts the knob of "target temperature/heating power", the cooking appliance enters the constant temperature control state. At this time, the value displayed by the knob is not heating heat, but the target temperature of heating, wherein the target temperature ranges from 0 °C to 100 °C. In the fixed temperature control state, the cooking appliance can automatically adjust the heating power, without manual input. When entering the constant temperature control state, the “constant temperature/heating time” knob displays the constant temperature heating time, which refers to the time when the food temperature reaches the target temperature and needs to be heated at a constant temperature. The adjustable time range is from 0 s to 7200 s. With constant temperature and constant temperature control, users can achieve flexible reheating and cooking according to individual needs.

Optionally, in the embodiment of the present invention, the cooking appliance may further include a safety monitoring module, and the cooking appliance may be a microwave oven, and the microwave oven uses a frequency converter to control the magnetron to generate microwaves. The safety detection module is configured to detect the anode current of the magnetron, and determine whether the magnetron is in an abnormal working state according to the anode current. In addition, the safety monitoring module can complete the no-load detection within 10s after the microwave oven starts working. According to the anode current, it is judged whether the magnetron is in an abnormal working state or not based on the feedback characteristic (current curve) of the anode current for pattern recognition to determine whether the magnetron is in an abnormal working state, wherein the algorithm for pattern recognition can be a neural network clustering. , wavelet transform, etc. The abnormal state detection and no-load detection of the magnetron can ensure the safe use of the microwave oven and improve the life of the microwave oven.

Optionally, in the embodiment of the present invention, the cooking appliance may further include a display module. The display module is configured to display food-related information, wherein the information includes at least one of: an operation being performed by the cooking appliance, a temperature of the food, an operation time of the operation, a remaining time of the operation, a target temperature corresponding to the operation, and The constant temperature time corresponding to the target temperature, the temperature profile of the food, and the target temperature profile of the food are as shown in FIG. In this way, the user can be made to observe the state of the food in real time, so that the control process of the cooking appliance is transparent. In the embodiment of the present invention, the display module may be a TFT touch screen module. Optionally, in the embodiment of the present invention, the interaction module and the display module may be disposed on one TFT touch screen module. That is, on the TFT touch screen module, two interfaces may be included, one is a control interface, which is mainly used for a user to input an operation instruction, and controls a cooking appliance; and the other is a display interface, which displays a working mode, a running time, and a food of the cooking appliance in real time. Process information such as temperature curve. The touch screen module can communicate with the keyboard of the cooking appliance through the serial port.

Optionally, in the embodiment of the present invention, the interaction module may further include a button module and a voice module, where the button module and the voice module are used for interaction between the cooking appliance and the user. Wherein, the button module can be a hardware button for suspending or canceling control of the cooking appliance. Setting the button module can prevent the cooking appliance from canceling the ongoing operation after the interaction module fails, thus providing double protection. The voice module can contain more than 150 voice control commands, and can recognize voice control commands offline or online, and communicate with the computer board through the serial port. Both the voice module and the interactive module can control the cooking appliance for cross control. In addition, in the case that the interaction module includes a button or a setting module, the setting module and the button are linked with the voice module, and the setting module and the button can be controlled by the voice module.

Figure 11 is a system block diagram of a cooking appliance according to another embodiment of the present invention. Among them, in this embodiment, the cooking appliance is a smart microwave oven. As shown in FIG. 11, the smart microwave oven includes a load module, a human-machine interaction module (equivalent to the interaction module in the above embodiment), a sensing detection module, an intelligent control module (equivalent to the control module in the above embodiment), and security. Monitoring module. The load module is mainly used to generate microwave signals. In order to achieve continuously adjustable low power output, the microwave oven uses a frequency converter to control the magnetron to generate microwaves. The human-computer interaction module includes a button module, a TFT module and a voice module. The sensor detection module includes a food temperature probe, an infrared sensor and a humidity sensor. The intelligent control module mainly combines a PID algorithm, a fuzzy algorithm, an expert control algorithm to control the microwave oven, and the safety monitoring system. The module is mainly used for abnormal state detection and no-load detection of magnetrons. The human-computer interaction module, the sensing detection module, the intelligent control module, and the security monitoring module are described in the foregoing embodiments, and are not described herein again. In addition, in this embodiment, in order to reduce the influence of measurement noise, the main control chip of the microwave oven may adopt a smoothing filter, an adaptive filtering, or a Kalman filtering algorithm to preprocess the signal transmitted from the sensing detection module.

Additionally, another aspect of an embodiment of the present invention provides a machine readable storage medium having stored thereon instructions for causing a machine to perform the method described above.

In summary, according to the real-time temperature of the food and the food target temperature corresponding to the operation instruction, the heating power and heating time of the cooking appliance are adjusted, and finally the temperature of the food reaches the target temperature of the food, thereby realizing automatic control of the cooking appliance to heat the food without input. Heating the heating power and heating time, etc., and controlling the cooking appliance to enter the working program as long as the operation instruction is received, no other operation steps are required, and the operation steps of the cooking appliance are simplified. The target temperature and heating time of foods with different water contents are different. The moisture content of the food is determined by the humidity of the detected food, the food target temperature corresponding to the water content of the food is determined, and then the cooking is controlled according to the real-time temperature of the food and the food target temperature. The heating and heating time of the appliance and the heating time enable the temperature of the food to reach the target temperature of the food, thereby realizing the automatic heating of different foods by realizing the type, weight, cooking heat and heating time of the cooking utensil without pre-entering the food. Cooking utensils are smarter. In addition, in the case of receiving the setting of the heating power, the heating time, the target temperature, and the constant temperature time, the cooking appliance is controlled to perform the heating operation according to the setting, so that the user can reheat or cook the food according to his own needs, thereby improving User satisfaction. In combination with the working state of the cooking appliance, in the case of receiving the user's first setting module for setting the target temperature or the heating power or receiving the user's operation of the second setting module for setting the constant temperature time or the heating time, Adjusting the target temperature or heating the firepower, or adjusting the constant temperature time or heating time, achieves the adjustment of two parameters using a setting module. The working mode, the running time, the food temperature and the like of the cooking appliance are displayed during the working process of the cooking appliance, so that the user observes the state of the food in real time, so that the control process of the cooking appliance is transparent. In addition, when the cooking appliance is a microwave oven, abnormal state detection and no-load detection of the magnetron can ensure safe use of the microwave oven and improve the life of the microwave oven.

The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the foregoing embodiments. The technical solution carries out a variety of simple variants, all of which fall within the scope of protection of embodiments of the invention.

It should be further noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations of the embodiments of the present invention are not separately described.

Those skilled in the art can understand that all or part of the steps of implementing the foregoing embodiments may be completed by a program instructing related hardware, and the program is stored in a storage medium, and includes a plurality of instructions for causing a single chip, a chip or a processor. The processor performs all or part of the steps of the method described in the various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

In addition, the various embodiments of the present invention may be combined in any combination, as long as they do not deviate from the idea of the embodiments of the present invention, and should also be regarded as the disclosure of the embodiments of the present invention.

Claims

A method for controlling a cooking appliance, the method comprising:

Receiving an operation instruction;

Determining a food target temperature corresponding to the operational command;

Controlling the cooking appliance to perform a heating operation according to the food target temperature, and detecting a temperature of the food during the performing the heating operation, and controlling heating heating and heating of the cooking appliance according to the temperature and the food target temperature Time to bring the temperature of the food to the food target temperature.
The method of claim 1 wherein said determining a food target temperature corresponding to said operational command comprises:

Detecting the humidity of the food; and

The moisture content of the food is judged based on the humidity, and the food target temperature corresponding to the water content is determined.
The method according to claim 1, wherein the cooking appliance comprises a first setting module for setting a target temperature or a heating fire, the method further comprising:

Detecting a state of the cooking appliance after receiving an operation of the first setting module by a user;

Adjusting heating heating power of the cooking appliance according to operation of the first setting module by the user when the cooking appliance is in a heating state;

Controlling the cooking appliance to enter a constant temperature control state when the cooking appliance is in a standby state, and setting a target temperature of the cooking appliance according to an operation of the first setting module by the user, and setting the target temperature As the food target temperature.
The method of claim 3, wherein the cooking appliance comprises a second setting module for setting a heating time or a constant temperature time, the method further comprising:

Detecting a state of the cooking appliance after receiving an operation of the second setting module by a user;

Setting a constant temperature time of the cooking appliance according to an operation of the second setting module by the user when the cooking appliance is in a constant temperature control state;

When the cooking appliance is in a heated state, the heating time of the cooking appliance is adjusted according to the operation of the second setting module by the user.
The method according to any one of claims 1 to 4, further comprising:

Displaying information related to the food;

Wherein the information includes at least one of: an operation being performed by the cooking appliance, the temperature of the food, an operation time of the operation, a remaining time of the operation, a target temperature corresponding to the operation, a constant temperature time corresponding to the target temperature, a temperature profile of the food, and a target temperature profile of the food.
A cooking appliance, characterized in that the cooking appliance comprises:

An interaction module, configured to receive an operation instruction;

a temperature detecting module for detecting the temperature of the food;

Control module for:

Determining a food target temperature corresponding to the operational command;

Controlling the cooking appliance to perform a heating operation according to the food target temperature, and controlling the temperature detecting module to detect a temperature of the food during the performing the heating operation, and controlling the cooking according to the temperature and the food target temperature The heating power of the appliance and the heating time are such that the temperature of the food reaches the target temperature of the food.
The cooking appliance according to claim 6, further comprising: a humidity detecting module for detecting the humidity of the food;

The determining, by the control module, the food target temperature corresponding to the operation instruction comprises: determining a water content of the food according to the humidity, and determining a food target temperature corresponding to the water content.
The cooking appliance according to claim 6, wherein the cooking appliance further comprises:

a first setting module, configured to set a target temperature or a heating firepower;

a state detecting module, configured to detect a state of the cooking appliance;

The control module is further configured to:

Controlling the state detecting module to detect a state of the cooking appliance after receiving an operation of the first setting module by a user;

Adjusting heating heating power of the cooking appliance according to operation of the first setting module by the user when the cooking appliance is in a heating state;

Controlling the cooking appliance to enter a constant temperature control state when the cooking appliance is in a standby state, and setting a target temperature of the cooking appliance according to an operation of the first setting module by the user, and setting the target temperature As the food target temperature.
The cooking appliance according to claim 8, further comprising: a second setting module, configured to set a heating time or a constant temperature time;

The control module is further configured to:

Controlling the state detecting module to detect a state of the cooking appliance after receiving an operation of the second setting module by a user;

Setting a constant temperature time of the cooking appliance according to an operation of the second setting module by the user when the cooking appliance is in a constant temperature control state;

When the cooking appliance is in a heated state, the heating time of the cooking appliance is adjusted according to the operation of the second setting module by the user.
The cooking appliance according to any one of claims 6 to 9, wherein the cooking appliance further comprises:

a display module for displaying information related to the food;

Wherein the information includes at least one of: an operation being performed by the cooking appliance, the temperature of the food, an operation time of the operation, a remaining time of the operation, a target temperature corresponding to the operation, a constant temperature time corresponding to the target temperature, a temperature profile of the food, and a target temperature profile of the food.