阅读说明：本技术 燃气灶及用于其的烹饪方法、计算机可读存储介质 (Gas range, cooking method for gas range, and computer-readable storage medium ) 是由 钱意 万晨 于 2020-11-11 设计创作，主要内容包括：本发明提供了一种燃气灶及用其的烹饪方法、计算机可读存储介质,烹饪方法包括：获取导航菜谱之后先确定当前灶头和当前烹饪锅；然后在无干烧的情况下,根据第一烹饪阶段的温度时间曲线采用ADRC模型控制燃气灶的火力,之后依次执行第二烹饪阶段的各烹饪步骤；在执行各烹饪步骤时先判断当前烹饪步骤是否具有恒定火力,若是,控制所述第一比例阀和第二比例阀为恒定电流,并维持所述电流,从而使所述内环火和外环火处于恒定火力；如否根据当前烹饪步骤的温度时间对应曲线采用ADRC模型控制燃气灶的火力,从而使通过燃气灶进行自动烹饪出的菜肴口感更好。(The invention provides a gas stove, a cooking method using the gas stove and a computer readable storage medium, wherein the cooking method comprises the following steps: after a navigation menu is obtained, determining a current cooking range and a current cooking pot; then, under the condition of no dry burning, adopting an ADRC model to control the firepower of the gas stove according to the temperature-time curve of the first cooking stage, and then sequentially executing each cooking step of the second cooking stage; when each cooking step is executed, judging whether the current cooking step has constant firepower or not, if so, controlling the first proportional valve and the second proportional valve to be constant currents, and maintaining the currents so as to enable the inner ring fire and the outer ring fire to be in constant firepower; if not, the firepower of the gas stove is controlled by adopting the ADRC model according to the temperature-time corresponding curve of the current cooking step, so that the dishes automatically cooked by the gas stove have better taste.)

1. A cooking method for a gas stove comprises at least one stove head, wherein the stove head comprises an inner ring flame path, an outer ring flame path, a first proportional valve communicated with the inner ring flame path and a second proportional valve communicated with the outer ring flame path; characterized in that the cooking method comprises the steps of:

s10: acquiring a navigation menu, wherein the navigation menu comprises a first cooking stage and a second cooking stage, each cooking stage corresponds to cooking information, the cooking information comprises a temperature-time curve, and the temperature-time curves are mutually independent; wherein the second cooking stage comprises at least one cooking step arranged in an execution order, each cooking step having a temperature-time correspondence curve corresponding to one of the temperature-time curves corresponding to the second cooking stage;

s20: determining a current cooking range and a current cooking pot for cooking the navigation menu by controlling the ignition of the cooking range and acquiring the actual temperature of each cooking pot;

s30: continuously acquiring the actual temperature of the current cooking pot, judging whether the actual temperature is greater than an anti-dry heating threshold value, and if not, executing or continuing to execute the navigation menu; if so, closing a first proportional valve and a second proportional valve of the current cooking range, and terminating the execution of the navigation menu;

s40: controlling the firepower of the gas stove according to the temperature-time curve of the first cooking stage;

s50: sequentially executing the cooking steps of the second cooking stage;

s60: judging whether the current cooking step has constant fire power, if so, executing S70; if not, go to S80;

s70: controlling the first proportional valve and the second proportional valve to be constant currents, and maintaining the currents, so that the inner ring fire and the outer ring fire are in constant fire power;

s80: controlling the firepower of the gas stove according to the temperature-time corresponding curve of the current cooking step;

wherein, according to the firepower of temperature time curve or temperature time correspondence curve control gas-cooker, specifically do:

extracting the temperature of each moment in a temperature-time curve or a temperature-time corresponding curve as a target temperature, taking the target temperature as the input of a nonlinear tracking differentiator in an ADRC model at the corresponding moment, taking the actual temperature of the corresponding moment as a controlled object, taking the actual temperature as the feedback input of an extended state observer in the ADRC model, and outputting the current values of the first proportional valve and the second proportional valve by using the ADRC model;

and adjusting the input currents of the first proportional valve and the second proportional valve according to the current value output by the ADRC model so as to control the opening degrees of the first proportional valve and the second proportional valve to realize firepower control, so that the change of the actual temperature along with time follows the temperature-time curve or the temperature-time corresponding curve.

2. The cooking method according to claim 1, wherein the step S20 includes:

s21: one of the cooking ranges is used as a possible cooking range;

s22: controlling input currents of a first proportional valve and a second proportional valve of the possible cooking range to be preset currents, continuing for a third preset time, and obtaining actual temperatures of the cooking pots;

s23: judging which cooking pot has temperature information meeting the expected temperature change according to the actual temperature information of each cooking pot, determining the cooking pot meeting the expected temperature change as the cooking pot for cooking the current navigation menu, determining the possible cooking range as the current range, and executing S30; if none of the expected temperature changes are met, executing S24;

s24: judging whether the possible cooking range is the last range or not, if not, taking the next range as the possible range, and returning to the step S22; if yes, outputting a pot error signal;

the preset current is the maximum current, 70% of the maximum current and 50% of the maximum current, and the preset current is selected in a circulating mode in step S22.

3. The cooking method according to claim 1, wherein the second cooking stage further comprises a correspondence of the main ingredient placement to a target temperature; the step S60 includes:

s61: judging whether the current cooking step includes the action of putting the main materials, if so, executing S80; if not, executing S62;

s62: judging whether constant fire exists in the current cooking step, if so, executing S70; if not, go to S80;

the step S80 includes:

s81: controlling the firepower of the gas stove according to the temperature-time corresponding curve of the current cooking step until the actual temperature reaches the target temperature, and performing the main material feeding by voice reminding;

s82: taking a part behind the target temperature in the temperature-time corresponding curve as a new temperature-time corresponding curve, taking the time when the main material is put and executed as the starting time of the new corresponding curve, and controlling the firepower of the gas stove according to the new temperature-time corresponding curve; or returns to S61 with the next cooking step as the current cooking step.

4. The cooking method according to claim 3, further comprising, after the step S81, the steps of:

s83: judging whether the main material putting is executed within a first preset time, and if the main material putting is executed, executing S84; if not, adjusting the first proportional valve to be the minimum current, closing the second proportional valve, repeating voice reminding to execute the main material putting, waiting for a second preset time, ending the voice reminding, and executing S82;

s84: judging whether the weight and the variety of the food materials to be thrown are within the allowable difference range of the weight and the variety in the current navigation menu, if so, executing S82; if the allowable difference range is exceeded, executing S85;

s85: the new navigation menu is updated and taken as the current navigation menu, and the process returns to S60.

5. The cooking method according to claim 4, wherein in the step S83, whether the main material addition is performed is determined according to actual temperature information obtained from a temperature sensor or weight information obtained from a weight sensor.

6. The cooking method according to claim 1, wherein the second cooking stage further comprises a correspondence of a stir-fry action with a target temperature or a target time, when the current cooking step comprises a stir-fry action;

the steps S70 and S80 further include:

s71: and when the actual temperature reaches the target temperature or the duration reaches the target time, the stir-frying action is reminded to be executed through voice.

7. The cooking method as claimed in claim 6, wherein when the step S71 utters a voice prompt to perform a stir-fry action, the steps S70 and S80 further include:

s72: acquiring weight information of a weight sensor, judging whether the weight information has a preset variable quantity within a specified time, and if so, determining that stir-frying action is executed; if not, repeating the voice reminding to execute the stir-frying action until the weight information generates a preset variable quantity within a specified time or the duration reaches a fourth preset time to finish the voice reminding; wherein the prescribed time is less than the fourth preset time.

8. The cooking method according to any one of claims 1 to 7, wherein the gas range has a touch display screen, and the step S10 includes:

acquiring a touch instruction, and determining an acquisition mode of the navigation menu according to the touch instruction; if the acquisition mode is cloud downloading, controlling to connect the mobile terminal, and accessing the cloud terminal through the mobile terminal to download the menu; and if the acquisition mode is the memory menu, directly selecting through the touch instruction.

9. The cooking method according to any one of claims 1 to 7, wherein the step S20 is preceded by:

judging whether the false start is effective or not, and if the false start is effective, not starting S20; if not, S20 is executed.

10. The cooking method according to any one of claims 1 to 7, wherein the second cooking stage further comprises a correspondence between an auxiliary material dispensing action and a target value, the target value being a value of a cooking parameter in the corresponding curve; the steps S70 and S80 each further include:

s73: and when the actual temperature reaches the target temperature corresponding to the auxiliary material feeding action or the execution time reaches the time corresponding to the auxiliary material feeding action, sending voice to remind the execution of auxiliary material feeding and executing the auxiliary material feeding action.

11. The cooking method according to any one of claims 1 to 7, further comprising:

when the current cooking stage is executed, if firepower adjusting information input by the outside is received, stopping automatically adjusting the input currents of the first proportional valve and the second proportional valve according to data information of a navigation menu, switching to adjusting the input currents of the first proportional valve and the second proportional valve according to manually adjusted firepower information input by the outside until an instruction for switching back to automatic execution input by the outside is received, and then restoring automatically adjusting the input currents of the first proportional valve and the second proportional valve according to the data information of the navigation menu;

and storing the fire adjustment information, updating the current navigation menu, or modifying the current navigation menu according to the fire adjustment information and storing the modified current navigation menu as a new navigation menu.

12. A gas stove is characterized by comprising a stove body and a control system arranged on the stove body, wherein the stove body comprises at least one stove head, and the stove head comprises an inner ring flame path, an outer ring flame path, a first proportional valve communicated with the inner ring flame path and a second proportional valve communicated with the outer ring flame path;

the control system includes:

the system comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring a navigation menu, the navigation menu comprises a first stage and a second cooking stage, each cooking stage comprises a temperature-time curve, and each temperature-time curve is mutually independent; the second cooking stage comprises at least one cooking step arranged according to an execution sequence, and each cooking step corresponds to one section of curve in the temperature-time curve thereof and is marked as a corresponding curve;

a control unit connected to the first proportional valve, the second proportional valve, and the acquisition unit, for:

judging whether to cook the current cooking range and the current cooking pot of the navigation menu by controlling the ignition of each cooking range and acquiring the actual temperature of each cooking pot, then continuously acquiring the actual temperature of the current cooking pot, judging whether the actual temperature is greater than an anti-dry-burning threshold value or not,

if yes, closing the first proportional valve and the second proportional valve;

if not, controlling the firepower of the gas stove according to the temperature-time curve of the first cooking stage, and then sequentially executing all cooking steps of the second cooking stage;

for each current cooking step, firstly, judging whether the current cooking step has constant firepower, if so, controlling the first electromagnetic proportional valve and the second electromagnetic proportional valve to be constant currents; if not, controlling the firepower of the gas stove according to the temperature-time curve of the current cooking step.

13. A computer-readable storage medium for a gas cooking system, characterized in that the readable storage medium has stored thereon an execution program which, when executed, implements a cooking method according to any one of claims 1-11.

Technical Field

The invention relates to the technical field of gas stoves, in particular to a gas stove, a cooking method for the gas stove and a computer-readable storage medium for the gas stove.

Background

In daily life, people sometimes eat a favorite dish in good luck, but the favorite dish is difficult to reproduce; sometimes we have a taste when they think of children, but no traceability is available; sometimes, the method is expected to simulate the operation of a cook, but the taste and the mouthfeel of the cook are difficult to make, and particularly, in some catering industries, the scale is large, a plurality of cooks are needed, and the mouthfeel of dishes made by different cooks is different, so that the user experience is unstable and inconsistent. The reason is mainly the following aspects: firstly, the dishes are complex and various in materials, the cooking steps are complex, and the blanking time is very exquisite; secondly, although the electric heating mode is easy to control, the electric heating mode is difficult to reproduce good taste of Chinese food, the mastering of gas cooking and heating degree is very important, and the gas firepower is difficult to accurately control in operation.

Although some automatic cooking methods are proposed in the industry, the automatic cooking methods are only some rudiments, the constant fire power is only adopted for control in a certain stage, and the fire power can be adjusted to be large or small in two adjacent stages.

Disclosure of Invention

Based on the above situation, the main objective of the present invention is to provide a gas stove, a cooking method and a computer readable storage medium for the same, so as to solve the problem that dishes automatically cooked by using the gas stove have poor taste.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the first aspect of the invention provides a cooking method for a gas stove, wherein the gas stove comprises at least one stove head, and the stove head comprises an inner ring flame path, an outer ring flame path, a first proportional valve communicated with the inner ring flame path and a second proportional valve communicated with the outer ring flame path; characterized in that the cooking method comprises the steps of:

s10: acquiring a navigation menu, wherein the navigation menu comprises a first cooking stage and a second cooking stage, each cooking stage corresponds to cooking information, the cooking information comprises a temperature-time curve, and the temperature-time curves are mutually independent; wherein the second cooking stage comprises at least one cooking step arranged in an execution order, each cooking step having a temperature-time correspondence curve corresponding to one of the temperature-time curves corresponding to the second cooking stage;

s20: determining a current cooking range and a current cooking pot for cooking the navigation menu by controlling the ignition of the cooking range and acquiring the actual temperature of each cooking pot;

s30: continuously acquiring the actual temperature of the current cooking pot, judging whether the actual temperature is greater than an anti-dry heating threshold value, and if not, executing or continuing to execute the navigation menu; if so, closing a first proportional valve and a second proportional valve of the current cooking range, and terminating the execution of the navigation menu;

s40: controlling the firepower of the gas stove according to the temperature-time curve of the first cooking stage;

s50: sequentially executing the cooking steps of the second cooking stage;

s60: judging whether the current cooking step has constant fire power, if so, executing S70; if not, go to S80;

s70: controlling the first proportional valve and the second proportional valve to be constant currents, and maintaining the currents, so that the inner ring fire and the outer ring fire are in constant fire power;

s80: controlling the firepower of the gas stove according to the temperature-time corresponding curve of the current cooking step;

wherein, according to the firepower of temperature time curve or temperature time correspondence curve control gas-cooker, specifically do:

extracting the temperature of each moment in a temperature-time curve or a temperature-time corresponding curve as a target temperature, taking the target temperature as the input of a nonlinear tracking differentiator in an ADRC model at the corresponding moment, taking the actual temperature of the corresponding moment as a controlled object, taking the actual temperature as the feedback input of an extended state observer in the ADRC model, and outputting the current values of the first proportional valve and the second proportional valve by using the ADRC model;

and adjusting the input currents of the first proportional valve and the second proportional valve according to the current value output by the ADRC model so as to control the opening degrees of the first proportional valve and the second proportional valve to realize firepower control, so that the change of the actual temperature along with time follows the temperature-time curve or the temperature-time corresponding curve.

Preferably, the step S20 includes:

s21: one of the cooking ranges is used as a possible cooking range;

s22: controlling input currents of a first proportional valve and a second proportional valve of the possible cooking range to be preset currents, continuing for a third preset time, and obtaining actual temperatures of the cooking pots;

s23: judging which cooking pot has temperature information meeting the expected temperature change according to the actual temperature information of each cooking pot, determining the cooking pot meeting the expected temperature change as the cooking pot for cooking the current navigation menu, determining the possible cooking range as the current range, and executing S30; if none of the expected temperature changes are met, executing S24;

s24: judging whether the possible cooking range is the last range or not, if not, taking the next range as the possible range, and returning to the step S22; if yes, outputting a pot error signal;

the preset current is the maximum current, 70% of the maximum current and 50% of the maximum current, and the preset current is selected in a circulating mode in step S22.

Preferably, the second cooking stage further comprises a corresponding relationship between the main material feeding and the target temperature; the step S60 includes:

s61: judging whether the current cooking step includes the action of putting the main materials, if so, executing S80; if not, executing S62;

s62: judging whether constant fire exists in the current cooking step, if so, executing S70; if not, go to S80;

the step S80 includes:

s81: controlling the firepower of the gas stove according to the temperature-time corresponding curve of the current cooking step until the actual temperature reaches the target temperature, and performing the main material feeding by voice reminding;

s82: taking a part behind the target temperature in the temperature-time corresponding curve as a new temperature-time corresponding curve, taking the time when the main material is put and executed as the starting time of the new corresponding curve, and controlling the firepower of the gas stove according to the new temperature-time corresponding curve; or returns to S61 with the next cooking step as the current cooking step.

Preferably, the step S81 is followed by the step of:

s83: judging whether the main material putting is executed within a first preset time, and if the main material putting is executed, executing S84; if not, adjusting the first proportional valve to be the minimum current, closing the second proportional valve, repeating voice reminding to execute the main material putting, waiting for a second preset time, ending the voice reminding, and executing S82;

s84: judging whether the weight and the variety of the food materials to be thrown are within the allowable difference range of the weight and the variety in the current navigation menu, if so, executing S82; if the allowable difference range is exceeded, executing S85;

s85: the new navigation menu is updated and taken as the current navigation menu, and the process returns to S60.

Preferably, in step S83, whether the main ingredient addition is performed is determined according to actual temperature information obtained from a temperature sensor or weight information obtained from a weight sensor.

Preferably, the second cooking stage further comprises a corresponding relationship between a stir-frying action and a target temperature or a target time, and when the current cooking step comprises the stir-frying action;

the steps S70 and S80 further include:

s71: and when the actual temperature reaches the target temperature or the duration reaches the target time, the stir-frying action is reminded to be executed through voice.

7. The cooking method as claimed in claim 6, wherein when the step S71 utters a voice prompt to perform a stir-fry action, the steps S70 and S80 further include:

s72: acquiring weight information of a weight sensor, judging whether the weight information has a preset variable quantity within a specified time, and if so, determining that stir-frying action is executed; if not, repeating the voice reminding to execute the stir-frying action until the weight information generates a preset variable quantity within a specified time or the duration reaches a fourth preset time to finish the voice reminding; wherein the prescribed time is less than the fourth preset time.

Preferably, the gas range has a touch display screen, and the step S10 includes:

acquiring a touch instruction, and determining an acquisition mode of the navigation menu according to the touch instruction; if the acquisition mode is cloud downloading, controlling to connect the mobile terminal, and accessing the cloud terminal through the mobile terminal to download the menu; and if the acquisition mode is the memory menu, directly selecting through the touch instruction.

Preferably, the step S20 is preceded by:

judging whether the false start is effective or not, and if the false start is effective, not starting S20; if not, S20 is executed.

Preferably, the second cooking stage further includes a corresponding relationship between an auxiliary material throwing action and a target value, where the target value is a value of the cooking parameter in the corresponding curve; the steps S70 and S80 each further include:

s73: and when the actual temperature reaches the target temperature corresponding to the auxiliary material feeding action or the execution time reaches the time corresponding to the auxiliary material feeding action, sending voice to remind the execution of auxiliary material feeding and executing the auxiliary material feeding action.

Preferably, the method further comprises the following steps:

when the current cooking stage is executed, if firepower adjusting information input by the outside is received, stopping automatically adjusting the input currents of the first proportional valve and the second proportional valve according to data information of a navigation menu, switching to adjusting the input currents of the first proportional valve and the second proportional valve according to manually adjusted firepower information input by the outside until an instruction for switching back to automatic execution input by the outside is received, and then restoring automatically adjusting the input currents of the first proportional valve and the second proportional valve according to the data information of the navigation menu;

and storing the fire adjustment information, updating the current navigation menu, or modifying the current navigation menu according to the fire adjustment information and storing the modified current navigation menu as a new navigation menu.

The invention also provides a gas stove, which comprises a stove body and a control system arranged on the stove body, wherein the stove body comprises at least one stove head, and the stove head comprises an inner ring flame path, an outer ring flame path, a first proportional valve communicated with the inner ring flame path and a second proportional valve communicated with the outer ring flame path;

the control system includes:

the system comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring a navigation menu, the navigation menu comprises a first stage and a second cooking stage, each cooking stage comprises a temperature-time curve, and each temperature-time curve is mutually independent; the second cooking stage comprises at least one cooking step arranged according to an execution sequence, and each cooking step corresponds to one section of curve in the temperature-time curve thereof and is marked as a corresponding curve;

a control unit connected to the first proportional valve, the second proportional valve, and the acquisition unit, for:

judging whether to cook the current cooking range and the current cooking pot of the navigation menu by controlling the ignition of each cooking range and acquiring the actual temperature of each cooking pot, then continuously acquiring the actual temperature of the current cooking pot, judging whether the actual temperature is greater than an anti-dry-burning threshold value or not,

if yes, closing the first proportional valve and the second proportional valve;

if not, controlling the firepower of the gas stove according to the temperature-time curve of the first cooking stage, and then sequentially executing all cooking steps of the second cooking stage;

for each current cooking step, firstly, judging whether the current cooking step has constant firepower, if so, controlling the first electromagnetic proportional valve and the second electromagnetic proportional valve to be constant currents; if not, controlling the firepower of the gas stove according to the temperature-time curve of the current cooking step.

A third aspect of the invention provides a readable storage medium for a gas cooking system, the readable storage medium having stored thereon an executable program which, when executed, implements a cooking method as in any one of the above.

According to the cooking method, in the first stage, an ADRC model is adopted to control a first proportional valve and a second proportional valve of a gas stove so as to track a temperature-time curve, in the second stage, according to the condition in the cooking step, the ADRC model is used for controlling only in the cooking step with constant firepower, when the constant firepower exists, the ADRC model is not adopted, and the input currents of the first proportional valve and the second proportional valve are directly adjusted to be constant currents, so that the firepower control of the gas stove is realized by adopting the ADRC model, the model can consider the uncertainty of the model of the system and unknown external factors such as environment temperature and the like, the control problem of a nonlinear system can be well solved, and the firepower control is more accurate; in addition, the invention considers that in some cooking steps, although a temperature-time curve is tracked, constant-heat heating is carried out, if ADRC model control is still adopted at the moment, the target temperature of the temperature-time corresponding to each moment on the curve needs to be input, and the method is rather complicated and wastes system resources.

Other advantages of the present invention will be described in the detailed description, and those skilled in the art will understand the technical features and technical solutions presented in the description.

Drawings

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure:

fig. 1 is a flowchart of a preferred embodiment of a cooking method for a gas range provided by the present invention;

FIG. 2 is a system diagram of a preferred embodiment of a gas range provided by the present invention;

fig. 3 is a block diagram of an ADRC model in a preferred embodiment of the cooking method for a gas range according to the present invention.

In the figure:

100. a cooking range; 110. a first proportional valve; 120. a second proportional valve;

200. a control system; 210. an acquisition unit; 220. a control unit.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the nature of the present invention, well-known methods, procedures, and components have not been described in detail.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The invention provides a gas stove, as shown in fig. 2, comprising a stove body and a control system 200 arranged on the stove body, wherein the stove body comprises at least one stove 100, such as one stove 100, two stoves 100 or more stoves 100, the stove comprises an inner ring flame path, an outer ring flame path, a first proportional valve 110 communicated with the inner ring flame path, and a second proportional valve 120 communicated with the outer ring flame path, the first proportional valve 110 and the second proportional valve 120 are both solenoid valves, and can control the opening degree of the two stoves through the current applied to the control end, if the control ends of the two stoves input the maximum current, the opening degree of the two stoves is the maximum opening degree, the control ends input the minimum current, the opening degree of the two stoves is the minimum, and corresponding current can be applied corresponding to other opening degrees.

The control system 200 includes an obtaining unit 210 and a control unit 220, the obtaining unit 210 is configured to obtain a navigation recipe, data of the navigation recipe includes a first cooking stage and a second cooking stage, each cooking stage corresponds to cooking information, the cooking information includes a temperature-time curve, each temperature-time curve is independent from each other, the temperature-time curve of the first cooking stage can be recorded as a first curve, the temperature-time curve of the second cooking stage is a second curve, that is, the first curve and the second curve are all re-timed, and for example, respective starting times are respectively 0; the second cooking stage comprises at least one cooking step arranged according to an execution sequence, each cooking step is provided with a temperature-time corresponding curve corresponding to one section of the temperature-time curve of the second cooking stage, namely, in some navigation menus, the second cooking stage only comprises one cooking step, and the temperature-time corresponding curve corresponding to the step is the second curve; in some navigation recipes, the second stage includes two or more cooking steps, at this time, the whole temperature-time curve in the second stage is divided into a plurality of curve segments, which are respectively recorded as temperature-time corresponding curves, and the plurality of temperature-time corresponding curves are in one-to-one correspondence with the plurality of cooking steps. The control unit 220 is connected to the acquisition unit 210, the first proportional valve 110 and the second proportional valve 120 to control input currents of the first proportional valve 110 and the second proportional valve 120 according to the acquired information of the navigation recipe and the actual temperature of the cookware, thereby controlling the fire power of the entire cooktop 100.

The present invention also provides a cooking method for a gas stove, which can be applied to the gas stove, and can also be applied to other gas stoves as long as the gas stove comprises the cooking range 100, and the control system 200 can be partially arranged on the gas stove, such as the gas stove. Specifically, the cooking method comprises the steps of:

s10: and acquiring the navigation menu, wherein the specific information of the navigation menu is as described above and is not described herein any further.

S20: determining a matched cooking range and a matched cooking pot, specifically, determining a current cooking range and a current cooking pot of a cooking navigation menu by controlling the ignition of the cooking range and acquiring the actual temperature of each cooking pot;

s30: continuously acquiring the actual temperature of the current cooking pot, judging whether the actual temperature is greater than an anti-dry heating threshold value, if not, indicating that the cooking pot is in a basic normal state, and executing S40; if yes, the cooking pot is in a dry-burning stage, so that the first proportional valve and the second proportional valve are closed, namely the current cooking range 100 is closed, the navigation menu is terminated, and the navigation menu is not started;

s40: controlling the firepower of the gas stove according to the temperature-time curve of the first cooking stage, namely controlling the firepower of the gas stove according to the first curve in the first cooking stage;

s50: sequentially executing the cooking steps of the second cooking stage;

s60: judging whether the current cooking step has constant fire power, if so, executing S70; if not, go to S80;

s70: controlling the first proportional valve 110 and the second proportional valve 120 to be constant current and maintaining the current so that the inner ring fire and the outer ring fire are at constant fire power, i.e., heating at constant fire power;

s80: in the cooking step, the temperature-time corresponding curve is a part corresponding to the second curve, and the firepower of the gas stove is controlled according to the temperature-time corresponding curve of the current cooking step;

wherein, the temperature-time corresponding curve in each cooking step in the second stage is actually a part of the temperature-time curve in the second cooking stage, and the fire power of the gas stove is controlled according to the temperature-time curve, specifically by an Active Disturbance Rejection Control (ADRC) model, and specifically is as follows:

extracting the temperature at each moment in the temperature-time curve or the temperature-time corresponding curve as a target temperature, taking the target temperature as the input of the nonlinear tracking differentiator in the ADRC model at the corresponding moment, taking the actual temperature at the corresponding moment as a controlled object, taking the actual temperature as the feedback input of an extended state observer in the ADRC model, and outputting the current values of the first proportional valve 110 and the second proportional valve 120 by using the ADRC model;

the input currents of the first proportional valve 110 and the second proportional valve 120 are adjusted according to the current value output by the ADRC model to control the opening degrees of the first proportional valve 110 and the second proportional valve 120 so as to realize fire power control, and the change of the actual temperature along with time follows a temperature-time curve or a temperature-time corresponding curve.

The ADRC model in the invention is shown in FIG. 3, wherein n in the diagram is a natural number, and the ADRC model comprises a nonlinear tracking differentiator TD, a nonlinear state error feedback control law NLSEF and an extended state observer ESO. The target temperature v (t) is used as an input signal of the whole model and is input into a nonlinear tracking differentiator TD; the difference en between the output Z1n of the nonlinear tracking differentiator TD and the feedback Z2n of the extended state observer ESO is used as the input of a nonlinear state error feedback control law NLSEF; the difference value between the output u0(t) of the nonlinear state error feedback control law NLSEF and the feedback of the extended state observer ESO is recorded as an output difference value, the quotient of the output difference value and the gain b and the change rate d (t) of the controlled object jointly act on the controlled object, and the output y (t) is obtained; the product of the output difference and the gain b and the controlled object jointly act on the extended state observer ESO. In the invention, the target temperature is used as an input signal v (t), the controlled object is the actual temperature of the cooking pot, and the output y (t) is the current of the first proportional valve and the second proportional valve. Therefore, firstly, the nonlinear tracking differentiator TD is used for realizing the fast overshoot-free tracking of the system target temperature and giving a good differential signal; secondly, the ADRC model takes the uncertainty of the system as the internal disturbance of the system, the uncertainty and the external disturbance of the system are regarded as the disturbance of the whole system together, the comprehensive action of the internal disturbance and the external disturbance is directly monitored without distinguishing, namely the total disturbance of the system, the state and the disturbance of the system are respectively estimated through an Extended State Observer (ESO), and the Extended State Observer (ESO) converts a nonlinear uncertain object with unknown external disturbance (such as external environment temperature and air flow) into an integrator series type by using a nonlinear state error feedback control law (NLSEF), so that the ADRC model is a structure for realizing feedback linearization on the nonlinear uncertain object; and finally, the ADRC utilizes a nonlinear state error feedback control law NLSEF to obtain the compensation effect of the disturbance component and obtain the output of the whole model.

For controlling cooking firepower, the prior art generally only has three grades of big fire, middle fire and small fire, and the three firepower are directly selected by taking the final temperature of each cooking stage as a target temperature, however, in this way, the surface of the food may be already burnt, the internal temperature of the food does not reach the target temperature, or although the target temperature is finally reached, the heating time is too long, and some parts may be excessively heated, so that the taste of the food is influenced. And because of the influence of factors such as different environmental temperatures, the same firepower is difficult to reproduce the same temperature, so that the mouthfeel of the food cooked each time is uncertain.

In the cooking method, attention is paid to all times in the food heating process in the whole cooking stage, so that the change relation of the actual temperature of the food along with the time follows the temperature-time corresponding relation, even if the food is basically heated according to the temperature of the temperature-time relation, the final temperature is ensured, the preset heating time is ensured, the food is not allowed to be separated from the temperature-time corresponding relation, the food is heated to a certain intermediate temperature by a big fire, and then heated to the final temperature by a small fire, therefore, the control method can better ensure the temperature change in the whole heating process of the food, and improve the taste of the food.

For tracking the temperature-time curve and the curve corresponding to the temperature-time, the invention does not select the PID algorithm which is commonly used in electric cooking, because the PID algorithm needs to debug corresponding parameters according to different states of a calculation model, and the parameters in different cooking stages are different, and the gas stove is used for cooking, the temperature control is a complex nonlinear system, and the accurate control is difficult to realize. The invention realizes the fire control of the gas stove by adopting the ADRC model, and the model can consider the uncertainty of the model of the system and the unknown external disturbance of external factors such as environment temperature and the like, thereby well solving the control problem of a nonlinear system and ensuring that the fire control is more accurate.

Further, considering that the first cooking stage is a process of heating a pan without food materials or a pan with food materials, the temperature changes greatly with time, and in order to ensure that the internal and external temperatures of the food materials are as consistent as possible, a temperature-time curve is selected to track the firepower of the cooking range, for example, the cooking pan with food materials (including water) needs to be heated in the first cooking stage of stewing, and the cooking pan (without oil in the pan, empty pan) needs to be heated in the first cooking stage of frying the dishes or the cooking pan with oil directly needs to be heated; in the second cooking stage, different navigation recipes have different cooking steps, for example, in some cooking steps, although a temperature and time corresponding curve is tracked, the tracking result is actually constant-heat heating, so that the input currents of the corresponding first proportional valve 110 and the second proportional valve 120 are actually constant, if the ADRC model is still adopted for control, the input currents of the first proportional valve and the second proportional valve are required to be constant, rather, the input currents are complicated and waste system resources. Therefore, the present invention selects different fire control modes according to different cooking steps in the second cooking stage.

When a plurality of cooking ranges 100 are provided, if cooking pots are placed on each cooking range 100, or if there is only one cooking range 100, a plurality of cooking pots are disposed, and at this time, in order to prevent that temperature information of other cooking pots may affect an actual temperature desired in a cooking process and cause erroneous judgment in the cooking process, it is important to confirm in advance which cooking pot is used on the cooking range 100 to be started, and the probability of failure in cooking can be reduced.

Further, in the process of automatic cooking, in order to prevent the potential safety hazard caused by dry heating in the cooking process, particularly in the process of manual cooking, the invention monitors the actual temperature of the current cooking pot in the whole cooking process, judges the actual temperature and stops the execution of the navigation menu as long as the actual temperature is greater than the dry heating prevention threshold. Specifically, the anti-dry-heating threshold may be a fixed value, that is, the same value for each navigation recipe, or different anti-dry-heating thresholds may be set according to different navigation recipes, or even different anti-dry-heating thresholds may be set for different cooking stages or cooking steps. The anti-dry heating threshold value can be directly stored in the data of the navigation menu, and the method is particularly suitable for the situation that different anti-dry heating threshold values are set for different navigation menus and different anti-dry heating threshold values are set for different cooking stages or cooking steps; the dry-fire prevention threshold may also be directly stored in the control unit 220.

For the matching of the current cooking range of the cooking navigation menu and the current cooking pot, one cooking range 100 can be directly selected for ignition, the temperature information of each cooking pot is obtained, and then the temperature information of which cooking pot meets the expected temperature change is judged, and the cooking pot meeting the expected temperature change is determined to be the pot for cooking the current navigation menu. This kind of mode, it is more convenient when only having a kitchen range, but when having a plurality of kitchen ranges, the cooking pot has not necessarily been placed to the kitchen range of selection ignition, but has placed the cooking pot on other kitchen ranges, can cause the culinary art to go on. In a preferred embodiment of the present invention, the step S20 includes:

s21: one of the cooking ranges is used as a possible cooking range;

s22: controlling input currents of a first proportional valve 110 and a second proportional valve 120 of a possible cooking range to be preset currents, continuing for a third preset time, and acquiring actual temperatures of the cooking pots;

s23: judging which cooking pot has temperature information meeting the expected temperature change according to the actual temperature information of each cooking pot, determining the cooking pot meeting the expected temperature change as the cooking pot for cooking the current navigation menu, determining the possible cooking range as the current range, and executing S30; if none of the expected temperature changes are met, executing S24;

s24: judging whether the possible cooking range is the last range or not, if not, taking the next range as the possible range, and returning to the step S22; if yes, outputting a pot error signal;

the preset current is the maximum current, 70% of the maximum current and 50% of the maximum current, and the preset current is selected in a circulating mode in step S22.

If only one cooking range 100 is arranged, the cooking range can be directly controlled to be ignited, then the temperature information of each cooking pot is obtained, and then the temperature information of which cooking pot meets the expected temperature change is judged, and the cooking pot meeting the expected temperature change is determined to be a pot for cooking the current navigation menu, namely the current cooking pot, and the cooking range is the current cooking range; if the expected temperature change is not met, outputting the error information of the cookware.

When a plurality of cooking ranges are arranged, the same principle is carried out, for example, two cooking ranges and two cooking pots are arranged, the two cooking ranges are respectively marked as a first cooking range and a second cooking range, the two cooking pots are respectively marked as a first pot and a second pot, the first cooking range is firstly set as a possible cooking range, the input currents of a first proportional valve and a second proportional valve of the first cooking range are controlled to be maximum currents, ignition is carried out, then, the pot which reaches the expected temperature change is judged according to the actual temperature information of the first pot and the second pot, if the first pot reaches, the first pot is placed on the first cooking range, namely the first cooking range is the current cooking range for cooking, the first pot is the current cooking pot, and S20 is finished; if both the two cookers do not reach the temperature change of the two cookers, the second cooker is set as a possible cooking cooker, the input currents of the first proportional valve and the second proportional valve of the second cooker are controlled to be 70% of the maximum current, ignition is carried out, then the actual temperature information of the first cooker and the second cooker is used for judging which cooker reaches the expected temperature change, if the first cooker reaches, the fact that the first cooker is placed on the first cooker is explained, namely the second cooker is the current cooker of cooking, the first cooker is the current cooking cooker, the step of S20 is finished, and if both the two cookers do not reach, cooker error information is output.

Obviously, the judgment method can be applied to more cooking ranges and more pots, so that the universality of the cooking method is improved.

It should be noted that, although the cooking step including the constant power includes the corresponding relationship between the constant power and the time or the corresponding relationship between the constant power and the temperature, the temperature time of this cooking step still follows the temperature-time corresponding curve of this stage, so the duration time in the corresponding relationship between the constant power and the time is the total time length of the temperature-time corresponding curve, and the final temperature in the corresponding relationship between the constant power and the temperature is the final temperature of the temperature-time corresponding curve.

In S70, when the constant fire power includes a large fire and a small fire, the method of controlling the first proportional valve 110 and the second proportional valve 120 to be constant currents and maintaining the currents so that the inner ring fire and the outer ring fire are constant fire power includes:

judging whether the constant fire power is a big fire or a small fire, if the constant fire power is the big fire, adjusting the maximum current of the first proportional valve and the second proportional valve to enable the first proportional valve and the second proportional valve to be both maximum opening degrees, and enabling the air inflow to be maximum; if the fire is small, the second proportional valve is closed, namely the second electromagnetic proportional valve does not have gas to circulate, the outer ring fire is extinguished, and meanwhile the first proportional valve is adjusted to be the minimum current, namely the first proportional valve is adjusted to be the minimum opening degree, so that the air inflow is the minimum, the inner ring fire is the minimum fire, and the inner ring fire is the minimum fire of the whole cooking range. Similarly, when the constant firepower is a medium fire, the currents of the first proportional valve and the second proportional valve are adjusted according to the preset corresponding current (or the percentage of the maximum current).

In addition, since the control unit 220 sequentially executes the cooking steps of the first cooking stage and the second cooking stage in the navigation menu, the control unit 220 may directly extract information of the cooking stages or the cooking steps according to the navigation menu, or extract information corresponding to the current cooking stage or the cooking step when executing which cooking stage or cooking step.

For the actual temperature of the cooking pot, the actual temperature can be obtained according to the temperature sensor, and the temperature sensor is connected with the control unit 220, specifically, the temperature sensor can be installed on the cooking pot, such as the bottom of the pot, in this embodiment, the temperature sensor can be connected with the control unit 220 in a wireless communication manner; the temperature sensor may be directly installed at the cooking range, and in this embodiment, the temperature sensor may be connected to the control unit 220 through a signal line. Either way, the temperature sensor, upon detecting the actual temperature, sends the actual temperature to the control unit 220. From the moment of detecting the temperature information to the moment of receiving by the control unit 220, the temperature information has actually sent a change, and the actual temperature is also affected according to different contents in the pan, so that it can be seen that the actual temperature detected by directly using the temperature sensor brings a relatively large error.

In step S10, the navigation menu may be stored in the memory 112 in advance, and the control unit 111 may call the navigation menu directly according to the selection of the user; the navigation menu can also be acquired through equipment such as a mobile phone and a cloud, specifically, the mobile phone is in wireless connection with the cloud, the cloud is in wireless connection with the control unit 111, the navigation menu can be directly selected from the cloud through mobile phone operation, the cloud sends the selected navigation menu to the control unit 111, the navigation menu can also be directly selected from the cloud, and the cloud sends the navigation menu to the control unit; of course, when the gas stove 100 further includes a display screen or a touch display screen 130 (detailed below), the display screen or the touch display screen is connected to the control unit 111, and the user may also directly select a navigation menu from the cloud through the touch display screen. When the mobile phone is used, the mobile phone can be provided with the APP corresponding to the gas stove, and the functions are executed through the operation of the APP.

The obtaining unit 210 may specifically include a memory, and the memory stores a plurality of navigation recipes. The obtaining unit 210 may also include a wireless communication device, and is connected to a terminal such as a mobile phone or a cloud terminal through the wireless communication device, so as to directly obtain the navigation menu from the terminal or the cloud terminal. Preferably, the obtaining unit 210 includes both a memory and a wireless communication device, and the user can select the mode of obtaining the navigation menu according to the requirement. When the gas stove further includes a touch display screen (detailed below), it may be further determined to acquire a navigation menu directly selected by navigation through the touch display screen, and the acquiring unit 210 is connected to the touch display screen, specifically, the S10 includes:

acquiring a touch instruction, and determining an acquisition mode of a navigation menu according to the touch instruction;

if the obtaining mode is cloud downloading, controlling to connect the mobile terminal, and accessing the cloud terminal through the mobile terminal to download the menu, specifically, the control unit 210 may display the navigation menu at the cloud terminal on a touch display screen and select the menu through a touch instruction;

if the obtaining mode is the memory menu, the selection is directly performed through the touch instruction, and specifically, the control unit 210 may display the navigation menu in the memory on the touch display screen and perform the selection through the touch instruction.

By adopting the touch control selection mode, the menu can be clear at a glance, the operation of a user is convenient, and a navigation menu more suitable for a heart instrument is easy to select.

It can be understood that, during the cooking process, the main ingredient feeding is necessarily involved, for example, when the navigation recipe is used for frying green vegetables, the first cooking stage is a hot pot stage, the second cooking stage comprises a hot oil step, a main ingredient frying step and a seasoning adding step, and the first proportional valve 110 and the second valve 120 can be controlled according to temperature and time by adopting an ADRC model in the hot pot stage and the hot oil step respectively, and S40 and S80 are respectively executed; with constant fire power (i.e., strong fire stir-frying) in the main material frying step and constant fire power (small fire seasoning) in the seasoning process, S70 is performed.

When the navigation recipe includes a main material putting action, as in the navigation recipe for stir-frying green vegetables, the green vegetables are inevitably required to be put in, or the main materials may be required to be put in a navigation recipe for stewing vegetables for a plurality of times, and the putting of the main materials can be executed according to time. That is, the second cooking stage further includes a corresponding relationship between the main ingredient input and the target temperature, and the step S60 includes:

s61: judging whether the current cooking step includes the action of putting the main materials, if so, executing S80; if not, executing S62;

s62: judging whether constant fire exists in the current cooking step, if so, executing S70; if not, go to S80;

in this embodiment, step S80 includes:

s81: controlling the firepower of the gas stove according to the temperature-time corresponding curve of the current cooking step until the actual temperature reaches the target temperature, and performing main material feeding by voice reminding;

s82: taking the part behind the target temperature in the temperature-time corresponding curve as a new temperature-time corresponding curve, taking the time when the main material is put and executed as the initial time of the new corresponding curve, and controlling the firepower of the gas stove according to the new temperature-time corresponding curve; or returns to S61 with the next cooking step as the current cooking step.

Since the temperature change is relatively large after the main material is put in, even if the main material has constant fire power in the current cooking step, the temperature change is relatively obvious after the main material is put in, in a preferred embodiment of the present invention, if the current cooking step includes the main material putting action, the cooking step directly adopts a temperature-time corresponding curve (even if the constant fire power is included), and controls the first proportional valve 110 and the second proportional valve 120 according to the temperature-time corresponding curve, and after the main material is put in, the temperature-time corresponding curve needs to be refreshed first, and then the control is performed according to the temperature-time corresponding curve. According to the mode, the corresponding relation between the main material feeding action and the target temperature is combined, namely, the cooking action is executed only when the actual temperature reaches the target temperature, so that the situation that the temperature in the pot is not reached, namely, the vegetable material is fed, the temperature in the pot continues to follow the corresponding relation of the temperature time, the temperature rise is weak, and the heating degree of the food material at each moment is influenced can be avoided. And when the cooking action is finished, the corresponding temperature-time relation after the cooking action in the stage is refreshed, or the cooking stage is directly shifted to the next cooking stage with independent time, so that the actual temperature is better close to an ideal actual temperature-time curve, and the food taste is improved.

Sometimes, the execution temperature of the main material throwing is reached, but the main material is not thrown all the time, and in some embodiments, the navigation menu is directly ended. Sometimes, the user does not want to release the main ingredients, for example, in the navigation menu of mushroom and rape, the user does not like mushroom, but wants to adopt the cooking stage of the menu, when the main ingredients of mushroom are released, the main ingredients are not released all the time, which does not affect the whole cooking process, for this case, the steps S81 and S82 further include:

s83: judging whether the main material feeding is executed within a first preset time, and if the main material feeding is executed, executing S84; if not, adjusting the first proportional valve to be the minimum current, closing the second proportional valve, repeating voice reminding to execute main material putting, waiting for a second preset time, ending the voice reminding, and executing S82;

s84: judging whether the weight and the variety of the thrown food materials are within the allowable difference range of the weight and the variety in the current navigation menu, if so, executing S82; if the allowable difference range is exceeded, executing S85;

s44: and (4) replacing the new navigation menu, taking the navigation menu as the current navigation menu, returning to the step S60, and actually, although the food material types and the weight are different, the selected menu is similar to the new menu, so that the time curve of the first stage of the updated navigation menu is basically consistent, and the second cooking stage can be directly entered.

That is, if the user or the manipulator does not always put the main material, and does not need to finish the navigation menu, the firepower is turned down and the preset time is waited, for example, after several seconds, the control is directly performed according to the mode after the main material is put in, because the small fire is used in the waiting stage, the actual temperature may have already dropped, and the control corresponding to the curve of the temperature time after the target temperature is adopted is also reasonable. Of course, if the main ingredient is released within the preset waiting time, the process goes directly to S82.

It can be understood that the process of adding the main materials also has a certain time, and the process can directly control the fire power according to the control method immediately before the target temperature, and also can directly heat with constant fire power, such as heating with small fire or large fire.

Wherein, in the embodiment including the temperature sensor, whether the main material feeding is successful or not may be detected through information of the temperature sensor, specifically, in S83, it is determined whether the main material feeding is executed within a first preset time, specifically: judging whether the actual temperature changes by a preset temperature difference within a first preset time, if so, executing the main material throwing; if not, the main material feeding is not executed.

In an embodiment including a weight sensor, whether the main material is successfully put in may be detected through information of the weight sensor, specifically, in S83, it is determined whether the main material is put in within a first preset time, specifically: acquiring weight information of a weight sensor within first preset time, and judging whether the weight information changes by a preset weight difference within the first preset time, if so, executing main material throwing; if not, the main material feeding is not executed.

In the navigation menu of the cooking, the second cooking stage also comprises the corresponding relation between the frying action and the target temperature or the target time, and when the current cooking step comprises the frying action;

steps S70 and S80 further include:

s71: when the actual temperature reaches the target temperature or the duration time reaches the target time, the voice prompts the stir-frying action to be executed, and stir-frying is carried out.

During the stir-frying process, the influence on the temperature and the like is relatively small, so that in the current cooking step, the first proportional valve 110 and the second proportional valve 120 are controlled in the original control manner, that is, steps S70 and S80 are performed.

When the stir-frying is required, the user or the manipulator may not perform at all, and in order to monitor whether the stir-frying is performed, when the step S71 issues a voice prompt to perform the stir-frying action, the steps S70 and S80 further include:

s72: acquiring weight information of the weight sensor, judging whether the weight information has a preset variable quantity within a specified time, and if so, executing stir-frying action; if not, repeating the voice reminding to execute the stir-frying action until the weight information generates a preset variable quantity within the specified time, or finishing the voice reminding when the waiting time reaches a fourth preset time, namely after waiting for the fourth preset time, namely, after or within the subsequent fourth preset time, detecting the preset variable quantity within the specified time, or not detecting the preset variable quantity all the time, but as long as the fourth preset time is reached, the monitoring is not carried out any more, the cooking step is normally executed, and a user probably dislikes the stir-frying mode. Correspondingly, a weight sensor is further installed on the cooker body, the weight sensor is connected with the control unit 220, and the weight sensor can be installed at the lower side of the cover plate of the cooker body.

When the S72 is executed, the occurrence frequency of the preset variation or the total stir-frying time may also be recorded at the same time, and when the two are not consistent with the information in the navigation menu, the current navigation menu may be updated, or the current navigation menu may be modified according to the stir-frying frequency and the total stir-frying time and stored as a new navigation menu, so that the user' S requirements may be met when the navigation menu is selected subsequently.

In the cooking process, also can add some auxiliary materials according to individual taste, weight sensor 140 can also be used for judging whether also there is the auxiliary material to add, if add solid seasoning such as shallot, ginger, or liquid seasoning such as soy sauce, vinegar, the second culinary art step still includes auxiliary material puts in with temperature corresponding relation or auxiliary material puts in with time corresponding relation promptly, correspondingly, when current culinary art step includes that the auxiliary material puts in with temperature corresponding relation or the auxiliary material puts in with time corresponding relation, step S70 and S80 still include:

s73: and when the actual temperature reaches the target temperature corresponding to the auxiliary material feeding action or the execution time reaches the time corresponding to the auxiliary material feeding action, sending voice to remind the execution of auxiliary material feeding and executing the auxiliary material feeding action.

In a preferred embodiment of the present invention, after the auxiliary material feeding operation is issued in S73, whether the auxiliary material feeding operation is performed or not may be confirmed by the weight sensor, and only the record is made, so that the navigation recipe extraction may be updated later, and the fire control during cooking is not adjusted.

The above-mentioned reminding of the main material throwing action or the stir-frying action may be a monotonous ring, or may be specific cooking action contents, such as "main material throwing", "stir-frying", "auxiliary material throwing", and the like. Correspondingly, the control system 200 further includes a voice unit, which may be a buzzer or a speaker.

When the current cooking stage is executed, including any cooking step of the first cooking stage and the second cooking stage, the user can adjust the parameters of the navigation menu according to the self-help requirement, such as directly inputting the fire power, specifically, the stove body further includes a touch display screen, the touch display screen is connected with the control unit 220, the fire power value can be manually input, and the cooking method further includes:

s91: when the current cooking stage is executed, if firepower adjusting information input by the outside is received, the input currents of the first proportional valve and the second proportional valve are stopped being automatically adjusted according to the data information of the navigation menu, the input currents of the first proportional valve and the second proportional valve are switched to be adjusted according to the manually adjusted firepower information input by the outside until an instruction for switching back to automatic execution input by the outside is received, and then the input currents of the first proportional valve and the second proportional valve are automatically adjusted according to the data information of the navigation menu;

s92: and storing the firepower adjusting information, updating the current navigation menu, or modifying the current navigation menu according to the firepower adjusting information and storing the modified current navigation menu as a new navigation menu.

By adopting the mode, the meal more suitable for the user can be cooked according to the requirement of the user, and the user experience is improved.

When the touch display screen is provided, the control unit 220 may further control the touch display screen to display an actual temperature, an air consumption amount, a thermal power, an energy consumption of the gas stove, a cooking time, a stir-frying frequency, and a hand-adjusting thermal value, so that a user can know various conditions in the cooking process. Specifically, the gas consumption amount refers to the amount of gas consumed by the gas range during the cooking process, the thermal power may be the power of the first proportional valve 110 and the second proportional valve 120, and the energy of the gas range refers to the power consumption amount of the gas range.

Sometimes, in order to prevent the navigation menu from automatically running after the navigation menu is acquired due to operations of children and the like or other misoperation, the method provided by the invention is provided with an anti-false start, and the method further comprises the following steps before the step S20:

judging whether the false start is effective or not, if so, not starting S20, namely not matching the current cooking pot; if not, S20 is executed.

The temperature-time curve or the temperature-time corresponding curve may be given in a graph form, or may be given in a table form or a function form, for example, the graph form is a line graph formed by temperature changing with time, the table form is a table formed by each time and the corresponding temperature, and the function form is a function of temperature changing with time, where in the case of the line graph, the function form may be given in a formula form, or may be given in a multipoint manner. Of course, the temperature-time correspondence may also take other forms. Similarly, the corresponding relationship between the main material feeding (or the auxiliary material feeding or the stir-frying action) and the time, and the corresponding relationship between the main material feeding (or the auxiliary material feeding or the stir-frying action) and the temperature can also be expressed in a curve form, a table form, a function form, or the like.

Furthermore, the present invention also provides a computer readable storage medium, such as a chip, an optical disc, etc., for a gas cooking system, on which an execution program is stored, which when executed, implements the cooking method as described in any one of the above.

It should be noted that the computer-readable storage medium according to the embodiments of the present disclosure is not limited to the above-mentioned embodiments, and may be, for example, an electric, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the above. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In embodiments of the disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict. The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures, for example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. The numbering of the steps herein is for convenience of description and reference only and is not intended to limit the order of the steps, which may be performed simultaneously or in any order without conflict.

It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.

It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.