CN112555917B - Control method of gas stove, gas cooking system and computer readable storage medium - Google Patents
Control method of gas stove, gas cooking system and computer readable storage medium Download PDFInfo
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- CN112555917B CN112555917B CN202011258475.2A CN202011258475A CN112555917B CN 112555917 B CN112555917 B CN 112555917B CN 202011258475 A CN202011258475 A CN 202011258475A CN 112555917 B CN112555917 B CN 112555917B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention provides a control method of a gas stove, a gas cooking system and a computer readable storage medium, wherein the control method comprises the following steps: acquiring a navigation menu, wherein the data information of the navigation menu comprises a temperature time curve and a plurality of cooking stages, the temperature time curve comprises a plurality of straight lines, and each cooking stage at least corresponds to one straight line section; sequentially executing each cooking stage, and judging whether the current cooking stage is heated by constant firepower or is heated according to the straight line section of the temperature time curve, and if the current cooking stage is heated by constant current, controlling the electromagnetic proportional valve; if the current temperature is equal to the current temperature, the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve are regulated according to the slope of the straight line segment in the current cooking stage, so that the change slope of the actual temperature along with time is consistent with the slope of the straight line segment in the current cooking stage, the accurate control of the temperature of food materials is realized, and dishes at the cooking position can reach the taste of a kitchen.
Description
Technical Field
The invention relates to the technical field of gas cooking, in particular to a control method of a gas stove, a gas cooking system and a computer readable storage medium.
Background
In daily life, people often use an electric cooker to realize automatic cooking, but even though the simplest rice stewing is difficult to realize by using fuel gas in an electric heating mode, the electric cooker is extremely imitating firewood, so that the cooking mode using fuel gas and other firepower is favored by users. However, in the existing gas cooking mode, the fire control is mostly manually controlled, and the mode is difficult to simulate the cooking process of a kitchen, and although some automatic cooking methods are proposed in the industry, the cooking is often carried out by heating at constant temperature for a preset period of time in a staged mode, and when the temperature in the adjacent stage is changed, if the temperature is increased, the temperature is directly adjusted from medium fire to high fire or from low fire to medium fire and high fire; if the temperature is reduced, the temperature is directly adjusted from big fire to medium fire or small fire or from medium fire to small fire, and the mode is obviously too rough for controlling the fire power, so that the control of the temperature of food materials by a kitchen at all times can not be realized at all, and the cooked dishes still can not reach the taste of the kitchen.
Disclosure of Invention
Based on the above-mentioned current situation, the main objective of the present invention is to provide a control method of a gas stove, a gas cooking system and a computer readable storage medium, so as to realize accurate control of the temperature of food materials, and enable dishes at the cooking place to achieve the taste of big kitchen.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the first aspect of the invention provides a control method of a gas stove, the gas stove comprises a stove head, the stove head is provided with an inner ring fire stove head, an outer ring fire stove head, a first electromagnetic proportional valve communicated with the inner ring fire head and a second electromagnetic proportional valve communicated with the outer ring fire head, and the control method comprises the following steps:
s10: acquiring a navigation menu, wherein the data information of the navigation menu comprises a temperature time curve and a plurality of cooking stages, the temperature time curve comprises a plurality of straight lines, and each cooking stage at least corresponds to one straight line segment;
s20: determining a current cooking pot matched with the current cooking range;
s30: acquiring the actual temperature of the current cooking pot detected by a temperature sensor;
s40: executing the current cooking stage, judging whether the current cooking stage is heating with constant fire or heating according to the straight line segment of the temperature time curve, and executing S50 if the current cooking stage is heating with constant fire; if the heating is performed in the straight line segment according to the temperature time curve, executing S60;
s50: respectively adjusting the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve to currents corresponding to the constant firepower, and heating to the final temperature or the corresponding duration corresponding to the current cooking stage by the constant firepower;
S60: and adjusting the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the slope of the straight line segment of the current cooking stage, so that the slope of the change of the actual temperature along with time is consistent with the slope of the straight line segment of the current cooking stage.
Preferably, the step S20 includes:
s21: controlling a first electromagnetic proportional valve and a second electromagnetic proportional valve which are connected with the current cooking range to be opened, and igniting;
s22: acquiring the actual temperature of the cooking pot detected by the sensor, judging whether the cooking pot changes according to the preset temperature rise according to the actual temperature, and if so, judging that the cooking pot is the current cooking pot matched with the current cooking range.
Preferably, in step S22 and step S30, the temperature detected by the thermocouple from the inside of the cooking pot is obtained through wireless communication.
Preferably, the constant fire power includes a big fire and a small fire, and in the step S50, setting the first electromagnetic proportional valve and the second electromagnetic proportional valve to currents corresponding to the constant fire power includes:
judging whether the constant fire is big fire or small fire, and if the constant fire is big fire, regulating the input current of the first electromagnetic proportional valve and the second electromagnetic proportional valve to be maximum current; if the fire is small, the second electromagnetic proportional valve is closed, and the input current of the first electromagnetic proportional valve is adjusted to be the minimum current.
Preferably, the step S60 further includes:
when the heating time reaches the duration corresponding to the current cooking stage, taking the final temperature of the current cooking stage as a target temperature, and adopting an ADRC algorithm to respectively adjust the currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve.
Preferably, the navigation menu further comprises a corresponding relation between main material feeding and a target temperature, wherein the target temperature is a temperature corresponding to a junction point of two adjacent straight line segments in the temperature time curve; the control method further includes:
s70: when the actual temperature reaches the target temperature, reminding to execute a main material throwing action;
s80: and (4) refreshing the time of the part after the boundary point in the temperature time curve until the main material is put, and returning to S40 by taking the time after the main material putting action is executed as the starting time.
Preferably, the step S80 includes:
s81: judging whether the main material is put in or not, and executing S82 if the main material is put in; if not, executing S83;
s82: refreshing the time of the part behind the boundary point in the temperature time curve, taking the time after the main material throwing action is executed as the starting time, and returning to S40;
S83: closing the second electromagnetic proportional valve, adjusting the first electromagnetic proportional valve to be the minimum current, waiting for the preset time, and returning to S82.
Preferably, the method comprises the steps of,
the step S83 includes: closing the second electromagnetic proportional valve, adjusting the first electromagnetic proportional valve to be the minimum current, and repeatedly sending out the reminding information of the main material throwing until the main material throwing action is executed to finish reminding, or waiting for the preset time to finish reminding, and returning to S82.
Preferably, at least one of the cooking stages includes a correspondence between auxiliary material delivery and a target time or a correspondence between auxiliary material delivery and a target temperature, and the control method further includes:
and when the execution time of the current cooking stage reaches the target time or the actual temperature reaches the target temperature, sending out reminding information of the auxiliary materials put in.
Preferably, the method further comprises: when executing the current cooking stage, if receiving a manual fire command input by the outside world, stopping automatically adjusting the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the data information of the navigation menu, switching to adjust the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the manual fire command input by the outside world until receiving a command of automatically executing the switching back of the outside world input, and then recovering the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the data information of the navigation menu.
A second aspect of the present invention provides a gas cooking system comprising a gas burner and a control module, the gas burner comprising a burner, the burner having an ignition mechanism, an inner ring burner, an outer ring burner, a first electromagnetic proportional valve in communication with the inner ring burner, a second electromagnetic proportional valve in communication with the outer ring burner, characterized in that the control module comprises:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a navigation menu, the data information of the navigation menu comprises a temperature time curve and a plurality of cooking stages, the temperature time curve comprises a plurality of straight lines, and each cooking stage at least corresponds to one straight line segment;
the temperature detection unit is used for acquiring the actual temperature of the current cooking pot;
the control unit is connected with the acquisition unit and the temperature detection unit and is connected with the ignition mechanism, the first electromagnetic proportional valve and the second electromagnetic proportional valve, and is used for controlling the ignition mechanism of the gas stove to ignite the current cooking stove, determining the current cooking pot, executing the current cooking stage and judging whether the current cooking stage has constant fire, if so, executing the steps of setting the first electromagnetic proportional valve and the second electromagnetic proportional valve to currents corresponding to the constant fire and heating the first electromagnetic proportional valve and the second electromagnetic proportional valve to the final temperature corresponding to the current cooking stage with the constant fire; or heating the current cooking stage for a corresponding time period with constant firepower; if not, the current of the first electromagnetic proportional valve and the current of the second electromagnetic proportional valve are regulated according to the slope of the straight line segment of the current cooking stage, so that the slope of the change of the actual temperature along with time is consistent with the slope of the straight line segment of the current cooking stage.
A third aspect of the present invention provides a computer readable storage medium for a gas cooking system, characterized in that the readable storage medium has stored thereon a computer program which, when executed, implements the control method as described in any one of the above.
According to the control method of the gas stove, the navigation menu comprises a temperature time curve and a plurality of cooking stages, each cooking stage corresponds to one section or a plurality of sections of straight line sections in the temperature time curve, after the current cooking pot is determined, the currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve are directly regulated to be constant currents in the cooking stage for constant firepower, and in other cases, the currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve are regulated according to the temperature time curve, so that the slope of the change curve of the actual temperature of the cooking pot along with time is consistent with the slope of each straight line section in the cooking stage, the temperature of food in the cooking pot is finely controlled, the heating degree of each moment of the food can be mastered, and the taste of cooked food is improved; in this way, the heating process does not only aim at the temperature, but also needs to be achieved within a prescribed time, so that the internal and external heating conditions of the food materials are basically the same, and the cooking success rate is improved.
Other advantages of the present invention will be set forth in the description of specific technical features and solutions, by which those skilled in the art should understand the advantages that the technical features and solutions bring.
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 control method of a gas cooker provided by the invention;
fig. 2 is a system diagram of a preferred embodiment of a control method of a gas range according to the present invention;
fig. 3 is a schematic diagram of a partial temperature time curve in a preferred embodiment of the control method of the gas stove provided by the invention.
In the figure:
100. a gas range; 110. an ignition mechanism; 120. a first electromagnetic proportional valve; 130. a second electromagnetic proportional valve;
200. a control module; 210. an acquisition unit; 220. a temperature detection unit; 230. a control unit;
Detailed Description
The present invention is 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 present invention, and in order to avoid obscuring the present invention, well-known methods, procedures, flows, and components are not presented in detail.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings 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, it is the meaning of "including but not limited to".
In the description of the present invention, it should 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. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The invention provides a gas cooking system, as shown in fig. 2, comprising a gas stove 100 and a control module 200, wherein the gas stove comprises a stove head, the stove head is provided with an ignition mechanism, an inner ring fire stove head, an outer ring fire stove head, a first electromagnetic proportional valve communicated with the inner ring fire head and a second electromagnetic proportional valve communicated with the outer ring fire head, and the gas cooking system is characterized in that the control module comprises: the control method for a gas cooker is used for realizing automatic control of the gas cooker, and the gas cooker 100 comprises a cooker head, wherein the cooker head is provided with an ignition mechanism 110, an inner ring fire burner, an outer ring fire burner, a first electromagnetic proportional valve 120 communicated with the inner ring fire burner and a second electromagnetic proportional valve 130 communicated with the outer ring fire burner, and generally, the gas cooker is provided with two cooker heads, and each cooker head is provided with an ignition mechanism 110, an inner ring fire burner, an outer ring fire burner, a first electromagnetic proportional valve 120 and a second electromagnetic proportional valve 130. The control module 200 comprises an acquisition unit 210, a temperature detection unit 220 and a control unit 230, wherein the acquisition unit 210 is used for acquiring a navigation menu, the temperature detection unit 220 is used for detecting the temperature of the cooking pot, the control unit 230 is connected with the acquisition unit 210, the temperature detection unit 220, the ignition mechanism 110, the first electromagnetic proportional valve 120 and the second electromagnetic proportional valve 130, and the control unit 230 is used for controlling the ignition mechanism 110, the first electromagnetic proportional valve 120 and the second electromagnetic proportional valve 130 to work according to the information of the acquisition unit 210 and the temperature detection unit 220. The data information of the navigation menu comprises a temperature time curve and a plurality of cooking stages, the temperature time curve comprises a plurality of straight lines, each cooking stage at least corresponds to one straight line section, that is, some cooking stages only correspond to one straight line section, and some cooking stages correspond to two, three or more straight line sections.
Referring to fig. 1, the present invention also provides a control method of a gas cooker, which can be used for controlling the gas cooker 100, including the steps of
S10: acquiring a navigation menu;
s20: determining a current cooking pot matched with the current cooking range;
s30: acquiring the actual temperature of the current cooking pot;
s40: executing the current cooking stage, judging whether the current cooking stage is heating with constant firepower or heating according to the straight line section of the temperature time curve, and executing S50 if the current cooking stage is heating with constant firepower; if the heating is performed in the straight line segment according to the temperature time curve, executing S60;
s50: and respectively adjusting the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve to be currents corresponding to constant firepower, and heating to the final temperature corresponding to the current cooking stage with the constant firepower, or heating for a period corresponding to the current cooking stage with the constant firepower. That is, in this case, the current of the first electromagnetic proportional valve and the second electromagnetic proportional valve need only be adjusted once throughout the cooking stage, that is, the current is a constant current, thereby achieving constant fire power.
S60: and adjusting the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the slope of the straight line segment in the current cooking stage, so that the slope of the change of the actual temperature along with time is consistent with the slope of the straight line segment in the current cooking stage.
The gas cooker is generally provided with two cooking heads, and the cooking pot is possibly placed on two cooking heads, or although one cooking head is placed on the cooking heads, the cooking pot is not necessarily placed on the cooking heads, and the situation is especially suitable for an embodiment (which will be described in detail below) that the cooking pot is connected with the gas cooker or a control unit by default, and at this time, each cooking pot sends an actual temperature to the control unit 230, so that resource waste is caused if the cooking pot is processed, and the cooking pot is not necessary at all; in addition, in the cooking process, although some cooking pans are not current cooking pans, the temperature information of the cooking pans is possibly changed under the influence of other factors, and the whole control process is easily influenced. In the control method, firstly, the cooking cookers matched with the current cooking range are determined, namely, which cooking cookers are placed on the current cooking range is determined, and then cooking is performed, so that the control efficiency of the control method is improved, and the possibility of misoperation is reduced. Such an automatic control of the gas range is only possible, and if the operation is considered, it is generally rare to meet the situation that no cooking pot is provided on the cooking range.
According to the control method of the gas stove, on one hand, the navigation menu comprises the temperature time curve and a plurality of cooking stages, each cooking stage corresponds to one or more straight-line sections in the temperature time curve, after the current cooking pot is determined, the currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve are directly regulated to be constant currents in the cooking stage for constant firepower, and in other cases, the currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve are regulated according to the temperature time curve, so that the slope of the change curve of the actual temperature of the cooking pot along with time is consistent with the slope of each straight-line section in the cooking stage, the temperature of food in the cooking pot is finely controlled, the heating degree of each moment of food can be mastered, and the taste of cooked food is improved. On the other hand, in the cooking stage of non-constant firepower, if the difference between the temperature on the temperature time curve at each moment and the actual temperature is compared to adjust the firepower, so as to realize tracking the temperature time curve, the attention is too much, namely, the temperature difference between the temperature at each moment needs to be paid attention to, and the adjustment is possibly too frequent. In yet another aspect, if a temperature is of interest during cooking, it may cause the final temperature of the current cooking stage to be reached in a shorter time, resulting in Jiao Li being served or the final temperature of the current cooking stage to be reached in a longer time, resulting in braising; in the invention, the temperature is concerned, and the time is concerned, namely, the temperature is not only the target in the heating process, but also the food needs to be reached within the specified time, so that the internal and external heating conditions of the food materials are basically the same, the cooking success rate is improved, and the taste of the meal is further improved.
Specifically, for the input current of the first electromagnetic proportional valve and the second electromagnetic proportional valve adjusted according to the slope of each straight line segment in the temperature time curve, the corresponding relation between each slope and the input current can be stored in advance, or the corresponding relation between the slope and the input current can be stored in advance in a formula manner, as shown in fig. 3, the temperature time curve comprises an AB straight line segment, a BC straight line segment, a CD straight line segment and a DE straight line segment, the respective slopes of four straight line segments can be stored in advance, and the input current corresponding to the respective slopes is stored; or when tracking the current straight line segment, the control unit directly calculates the change relation of the input current along with time according to the temperature-time corresponding relation of two points on the straight line segment, so as to control.
The acquiring unit 210 may specifically include a memory, which is disposed on the gas stove 100, and when the control unit 230 is disposed on the gas stove, the two are preferably connected by a wire, and a plurality of navigation menus are stored in the memory. The obtaining unit 210 may also include a wireless communication device, which may also be disposed on the gas stove 100, and is connected with a terminal or a cloud end such as a mobile phone through the wireless communication device, so as to directly obtain the navigation menu from the terminal or the cloud end. Preferably, the acquisition unit 210 includes both a memory and a wireless communication device, and the user can select a manner of acquiring the navigation menu as needed. Of course, whatever the embodiment of the acquisition unit 210, it is possible to provide it independently of the gas burner, the latter forming an integrated device with the control unit 230.
The temperature detection unit 220 includes a temperature sensor, which may be a thermocouple, a thermal sensor. The temperature detecting unit 220 may be directly installed at the burner, and the temperature detecting unit and the control unit 230 may be connected in a wired or wireless manner, and when the control unit 230 is disposed on the gas stove 100, the wired connection may be preferred to improve the reliability of communication. When the cooking pot is placed on the cooking range, the temperature detecting unit 220 detects the temperature of the cooking pot. Preferably, the temperature detecting unit 220 is disposed on the cooking pot, which may be located at the bottom of the cooking pot, or may be located inside the cooking pot, or may be disposed in an intermediate layer (i.e. between the inner surface layer and the outer surface layer) of the pot by die casting, or may be mounted on a handle, a cover, or other parts of the cooking pot (in an embodiment where these parts are disposed), in this embodiment, the temperature detecting unit 220 is preferably connected to the control unit 230 through wireless communication, and specifically, the temperature detecting unit further includes a wireless transmitting part and a wireless receiving part, where the wireless transmitting part is connected to the temperature detecting unit 220, and may be both disposed on the cooking pot, and the receiving part is connected to the control unit 220. Of course, the temperature detecting unit 220 may also be connected to the control unit 230 in a wired manner, such as a serial manner.
In one embodiment of the present invention, the temperature detecting unit 220 is preferably disposed on the cooking pot, and includes a thermocouple and a wireless transmitting portion, and the gas range is provided with a wireless receiving portion and a control unit 230. Accordingly, in the above steps S22 and S30: the temperature detected by the thermocouple in the cooking pot is obtained in a wireless communication mode and is used as the actual temperature of the current cooking pot. In this embodiment, the default gas range control system is started, and the wireless transmitting portion is connected to the wireless receiving portion.
The control unit 230 may be disposed independently from the gas cooker 100, i.e., the control module 200 is not mounted on the gas cooker 100, and may be connected by a line or directly by wireless communication. In a preferred embodiment of the present invention, the control unit 230 is directly integrated in the gas range 100 and directly connected to the ignition mechanism 110, the first electromagnetic proportional valve 120 and the second electromagnetic proportional valve 130 of the gas range through a wire harness, so that the reliability of communication between the two and the timeliness of control can be improved.
When the gas cooker includes a cooking range or a plurality of cooking ranges, in the above control method, one of the cooking ranges may be selected as the current cooking range after the navigation menu is determined, specifically, when the gas cooker includes a touch display screen (detailed below), the selection may be performed by a touch instruction or by a voice mode, and in this case, in step S20, the determining the current cooking pot matched with the current cooking range includes:
S21: controlling the first electromagnetic proportional valve and the second electromagnetic proportional valve connected with the current cooking range to be opened, namely selecting one cooking range as the current cooking range, controlling the first electromagnetic proportional valve and the second electromagnetic proportional valve to be opened and igniting, and specifically controlling the input current of the first electromagnetic proportional valve and the second electromagnetic proportional valve to be a preset value, such as a maximum current, 70% of the maximum current, 50% of the maximum current or other values;
s22: the actual temperature of the cooking pot is obtained, whether the cooking pot changes according to the preset temperature rise is judged according to the actual temperature, and if so, the cooking pot is a cooking pot matched with the current cooking range.
In the whole cooking process, the actual temperature of the cooking cookers needs to be acquired, so that the actual temperature change of the cooking cookers is firstly ignited and then directly judged to determine which cooking cookers are preset temperature rise cookers and are determined to be cookers matched with the current cooking range, and in this way, devices are not required to be additionally increased, the judging process can be simplified, and the efficiency of cooking range matching is improved.
In another embodiment, in step S20, an image may be acquired by a camera, and a matched cooking pan is determined according to the image, where it may be necessary to set an identification tag for the pan to distinguish between the images; the infrared image of the cooking pot can be acquired after ignition to determine the current cooking pot.
The electromagnetic proportional valve (including the first electromagnetic proportional valve and the second electromagnetic proportional valve) has a control end connected with the control unit 230, a first communication end connected with the inner ring burner (or the outer ring burner), and a second communication end communicated with the gas stove total air inlet, and the first communication end and the second communication end can be communicated or completely closed by controlling the control end, and different opening degrees are realized.
The current corresponding to the constant fire power can be preset, or the control unit can firstly calculate according to the fire power value of the constant fire power and then control the current, in fact, the constant fire power comprises big fire and small fire, and when the big fire is, the corresponding current is the maximum current; and when the fire is small, the corresponding current is small fire. Sometimes, a medium fire is also set, and a corresponding current is preset in advance at the medium fire, and a percentage of the maximum current, such as 70%, 50% and the like, may be given. Of course, the first constant current and the second constant current may be set at a high fire and at a low fire, respectively, the first constant current is greater than the second constant current, and the first constant current and the second constant current may be set to be a predetermined percentage of the maximum current, as required.
When the constant fire power includes a large fire and a small fire, in step S50, setting the first electromagnetic proportional valve and the second electromagnetic proportional valve to currents corresponding to the constant fire power includes:
judging whether the constant fire is big fire or small fire, if the constant fire is big fire, regulating the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve to be maximum currents so that the first electromagnetic proportional valve and the second electromagnetic proportional valve are maximum openings, and enabling the air inflow to be maximum; if the fire is small, the second electromagnetic proportional valve is closed completely, namely the second electromagnetic proportional valve does not have gas circulation, the outer ring stove head is extinguished, meanwhile, the input current of the first electromagnetic proportional valve is adjusted to be the minimum current, namely the first electromagnetic proportional valve is adjusted to be the minimum opening, so that the air inflow of the first electromagnetic proportional valve is minimum, and the inner ring stove head is the minimum fire, namely the minimum fire of the whole stove head. Similarly, when the constant fire is middle fire, the currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve are adjusted according to the preset corresponding currents (or the percentage of the maximum current).
In step S60, although the slope of the curve of the actual temperature change with time can be controlled to be as uniform as possible as the slope of the straight line segment corresponding to the current cooking stage, since the temperature information of the temperature sensor is received from the acquisition and control unit 230, there is necessarily a delay, and therefore when the time of the current cooking stage arrives, the actual temperature does not yet reach the final temperature corresponding to the straight line segment, at this time, the heating may be performed according to the current fire, or the heating may be performed by adjusting to the high fire, or the heating may still be performed according to the previous slope. Preferably, the final temperature of the straight line segment of the cooking stage is used as the target temperature for the thermal power adjustment, specifically, step S60 further includes:
When the heating time reaches the duration corresponding to the current cooking stage, the final temperature of the current cooking stage is taken as the target temperature, and the current of the first electromagnetic proportional valve and the current of the second electromagnetic proportional valve are respectively regulated by using an ADRC algorithm (active disturbance rejection control algorithm).
In this way, it is possible to adjust the fire in such a way that the current fire, the big fire or the current slope of the fire is maintained all the time, and the internal parameters of the system and the external disturbances are compensated all the time, so that the final temperature is reached more reasonably.
Specifically, the target temperature is used as an input of a nonlinear tracking differentiator in the ADRC algorithm, the actual temperature is used as a controlled object, and is used as a feedback input of an extended state observer in the ADRC algorithm, the respective current values of the first electromagnetic proportional valve and the second electromagnetic proportional valve are obtained according to the output of the ADRC model and the controlled object, and the control unit 230 controls the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the current values of the first electromagnetic proportional valve and the second electromagnetic proportional valve. The parameters in the ADRC algorithm may be determined based on empirical values or multiple experiments.
In fact, in step S60, the ADRC algorithm may also be directly adopted, at this time, each temperature on the straight line segment corresponding to the current cooking stage is taken as the target temperature, so that the slope of the change curve of the actual temperature along with time is basically consistent with the slope of the straight line segment. In step S60, a PID algorithm, a fuzzy algorithm, or the like may be used for the matching of the slopes.
It will be appreciated that during the cooking process, the main ingredients must be thrown in, for example, when the navigation menu is a dish frying process, the cooking stages include a hot pot stage, a hot oil stage, a main ingredient frying stage and a seasoning adding stage, the hot pot stage and the hot oil stage respectively include a straight line segment, the main ingredient frying stage has constant firepower (i.e. big fire stir-fry) and the seasoning stage has constant firepower (small fire seasoning), after S30, each cooking stage is sequentially executed, and when the hot pot stage and the hot oil stage are executed, the first electromagnetic proportional valve and the second electromagnetic proportional valve are directly controlled according to the mode of S60 because of no constant firepower; when the main material putting stage and the seasoning stage are executed, control is performed according to S50. Of course, there may be multiple navigation recipes for stir-frying green vegetables according to individual needs, each navigation recipe may include different cooking stages and temperature time curves, for example, when the navigation recipe is a mushroom stir-fried rape, the main stir-frying stage may include two stages, namely a mushroom main material stage and a rape main material stage, relative to the navigation recipe for stir-frying green vegetables, and for the same main material, different navigation recipes may be generated due to different weights. Regardless of how the navigation menu changes, only the control method according to the invention is needed to control each cooking stage correspondingly.
It should be noted that, although in the cooking stage including constant fire, the temperature-time curve of this cooking stage still actually follows the corresponding straight line segment, so that the duration in the correspondence between constant fire and time is the total duration in the correspondence between temperature and time, and the final temperature in the correspondence between constant fire and temperature is the final temperature in the correspondence between temperature and time, only in the control, a simpler parameter is selected for reducing the complexity of the control and improving the efficiency of the control.
When the navigation menu includes main material feeding, such as the aforementioned navigation menu for stir-frying green vegetables, green vegetables must be fed, or in the navigation menu of stewed dishes, the main material may need to be fed multiple times, and the temperature for feeding the main material is generally required, that is, the navigation menu further includes a correspondence between the main material feeding and the target temperature, that is, includes at which temperature the main material needs to be fed, after the main material feeding, the actual temperature will generally be reduced, so that the target temperature is the junction point of two adjacent straight line segments in the temperature time curve. Correspondingly, the control method further comprises the following steps:
s70: when the actual temperature reaches the target temperature, reminding to execute the main material throwing action;
S80: and (4) refreshing the time of the part behind the boundary point in the temperature time curve until the main material is put, and returning to the step (S40) by taking the time after the main material putting action is executed as the starting time.
That is, if the temperature time curve of the current cooking stage includes the target temperature corresponding to the cooking action, the control is still performed according to the mode of S40 to S60 before the main material is put in, when the actual temperature reaches the target temperature, the main material is put in, and when the main material is put in, the curve after the demarcation point needs to be refreshed, and then the control is performed according to the mode of S40 to S60.
If the actual food is not fed, but still follows the original temperature time curve, the slope tracked at this time is necessarily different from the previous slope, and in fact, since the main material is not fed at all at this time, the slope tracked at this time is not reasonable. In the method, tracking is not performed until the main material is put in, and the temperature time curve after the main material is put in is refreshed, so that tracking is more accurate.
Sometimes the execution temperature of the main material feeding is reached, but the main material is not fed all the time, in some embodiments, the navigation menu is directly ended. Sometimes, the user does not want to put the main material, for example, in the navigation menu of the mushroom and rape, the user does not like the mushroom, but wants to adopt the cooking stage of the menu, then the main material is not put all the time when the main material of the mushroom is put in, which does not affect the whole cooking process, for this case, step S80 includes:
S81: judging whether the main material is put in or not, and executing S82 if the main material is put in; if not, executing S83;
s82: refreshing the time of the part behind the boundary point in the temperature time curve, taking the time after the main material throwing action is executed as the starting time, and returning to S40;
s83: closing the second electromagnetic proportional valve, adjusting the first electromagnetic proportional valve to the minimum current, namely adjusting the fire power to the minimum fire power, waiting for the preset time, and returning to S82.
That is, if the user or the manipulator does not always put the main material, the navigation menu does not need to be ended, but the user or the manipulator adjusts the fire and waits for the preset time, for example, after a few seconds, the user or the manipulator directly controls the device according to the mode after the main material is put in, and the actual temperature may be already reduced due to the use of the small fire in the waiting stage, so that it is reasonable to control the device by adopting the slope of the temperature time curve after the junction point. Of course, if the main material is put in during the waiting preset time, the process goes to S82 for execution.
Further, step S83 specifically includes: closing the second electromagnetic proportional valve, adjusting the first electromagnetic proportional valve to be the minimum current, and repeatedly sending out the reminding information of the main material throwing until the main material throwing action is executed to finish reminding, or waiting for the preset time to finish reminding, and returning to S82.
Of course, the main material is put in for a certain time, and the process can directly control the fire according to the control method immediately before the demarcation point, and can also directly heat with constant fire, such as small fire or big fire.
In the embodiment including the temperature sensor, whether the main material is put successfully or not may be detected by the information of the temperature sensor, specifically, in S81, it is determined whether the main material is put and executed, specifically, whether: judging whether the actual temperature changes by a preset temperature difference in a first preset time, if so, executing the main material throwing; if not, the main material feeding is not performed.
Whether the main material is put in successfully or not can also be detected through the information of the weight sensor, specifically, in S81, whether the main material is put in is judged to be executed or not, specifically, the method comprises the following steps: acquiring weight information of a weight sensor in a first preset time, and judging whether the weight information is changed by a preset weight difference in the first preset time, if so, executing main material feeding; if not, the main material feeding is not performed.
The cooking system of the present invention further includes a reminding unit, such as a speaker, a buzzer, and other voice reminding devices, and may also be a reminding device, such as an indicator light, where the reminding unit is connected to the control unit 230, so as to remind of the main material being put in. Specifically, step S70 further includes: sending out voice reminding information of main material throwing; step S83 further includes: and repeatedly sending out the voice reminding information of the main material throwing.
It is also possible that in some cooking stages, the corresponding relationship between the main material feeding and the duration is further included, for example, after the first main material feeding, the second main material is fed in a first time by boiling with a strong fire, at this time, only the main material feeding action needs to be executed at the corresponding time of the corresponding cooking stage, and the control mode before and after the main material feeding can refer to the corresponding relationship between the main material feeding and the target temperature, which will not be described herein.
In the cooking process, auxiliary materials such as onion, ginger, garlic and the like are often required to be added, and seasonings such as salt, pepper, vinegar, soy sauce and the like are added.
When the execution time of the current cooking stage reaches the target time or the actual temperature reaches the target temperature of auxiliary material delivery, the reminding information of delivering auxiliary materials is sent out, and the reminding information can also be sent out through a reminding unit, can be voice reminding information, and can also be reminding information such as an indicator lamp.
According to the invention, the fact that the temperature cannot be greatly acoustic caused by adding auxiliary materials is considered, so that even if auxiliary materials are put in, the auxiliary materials are used as reminding, the adjustment of firepower cannot be changed in the whole control process, namely, the firepower is controlled according to the mode of S40-S60; and whether the auxiliary materials are successfully put in or not is judged, and the subsequent judgment is not performed.
The voice reminding information can be monotonous beeping sound, music sound or the like, and also can be voice information comprising reminding contents, such as ' please put main materials ', ' please put auxiliary materials ', or ' put green vegetables ' in a navigation menu of the fried green vegetables '.
Sometimes, when a user uses the navigation menu to cook, the user wants to adjust the firepower according to the taste requirement at certain stages, and in one embodiment of the invention, the control method further comprises:
when the current cooking stage is executed, if the hand-tuning fire value input by the outside is received, the current values of the first electromagnetic proportional valve and the second electromagnetic proportional valve are directly adjusted according to the hand-tuning fire value input by the outside until an instruction of automatic execution is received, and the process returns to S40.
Wherein, the external world can carry out firepower input through the knob, in a preferred embodiment, gas-cooker 100 still includes the touch-control display screen, and the touch-control screen is connected with control unit 230, and when control unit 230 set up in gas-cooker 100, both can be through wired mode such as serial ports, and in this embodiment, the manual thermal value of adjusting can be through touch-control instruction input. In addition, when the touch display screen is provided, the navigation menu can be directly selected through the touch display screen, specifically, the acquisition unit 210 is connected with the touch display screen, the navigation menu of the memory, the terminal or the cloud is directly displayed on the touch display screen, the navigation menu to be cooked is selected through the touch instruction, and the selected navigation menu can be directly displayed on the touch display screen.
When the touch display screen is provided, the control unit 230 may also control the touch display screen to display the actual temperature, the air consumption, the thermal power, the energy consumption of the gas stove, the cooking time, the stir-frying times, and the manual adjustment thermal power, so that the user can know various conditions in the cooking process. Specifically, the gas consumption refers to the gas consumption of the gas range 100 during the cooking process, the thermal power may be the power of the first electromagnetic proportional valve 123 and the second electromagnetic proportional valve 124, and the energy of the gas range refers to the power consumption of the gas range.
The invention aims to prevent potential safety hazards caused by dry combustion during cooking, especially during manual participation in cooking, and the control method further comprises the following steps:
s90: whether the actual temperature is larger than the dry heating prevention threshold value is continuously judged, if yes, the first electromagnetic proportional valve 123 and the second electromagnetic proportional valve 124 are closed, a flameout device is started, and heating is stopped.
The temperature-time curve may be given in a graphical form, or may be given in a table form or in a function form, for example, the graph form is a line graph formed by time-varying temperatures, the table form is a table formed by time points and corresponding temperatures, and the function form is a function of time-varying temperatures, where the curve may be given in a formula form, or may be given in a multipoint form. Of course, the temperature-time correspondence relationship may also take other forms. Similarly, the correspondence relationship between the constant fire power and time, the correspondence relationship between the constant fire power and temperature may be represented by a curve, a table, a function, or the like.
The computer readable storage medium according to the embodiments of the present disclosure is not limited to the above-described embodiments, and may be, for example, an electronic, 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 an embodiment of the present 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.
Those skilled in the art will appreciate that the above-described preferred embodiments can be freely combined and stacked without conflict. In which 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 in which the steps are performed simultaneously or in any order without conflict.
Those skilled in the art will appreciate that the above-described preferred embodiments can be freely combined and stacked without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the invention, are intended to be included within the scope of the appended claims.
Claims (7)
1. A control method of a gas cooker, the gas cooker including a burner, the burner having an inner ring burner, an outer ring burner, a first electromagnetic proportional valve in communication with the inner ring burner, a second electromagnetic proportional valve in communication with the outer ring burner, characterized by comprising the steps of:
s10: acquiring a navigation menu, wherein the data information of the navigation menu comprises a temperature time curve and a plurality of cooking stages, the temperature time curve comprises a plurality of straight lines, and each cooking stage at least corresponds to one straight line segment; the navigation menu also comprises a corresponding relation between main material throwing and target temperature, wherein the target temperature is the temperature corresponding to the junction point of two adjacent straight line segments in the temperature time curve;
S20: determining a current cooking pot matched with the current cooking range;
s30: acquiring the actual temperature of the current cooking pot detected by a temperature sensor;
s40: executing the current cooking stage, judging whether the current cooking stage is heating with constant fire or heating according to the straight line segment of the temperature time curve, and executing S50 if the current cooking stage is heating with constant fire; if the heating is performed in the straight line segment according to the temperature time curve, executing S60;
s50: respectively adjusting the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve to currents corresponding to the constant firepower, and heating to the final temperature or the corresponding duration corresponding to the current cooking stage by the constant firepower;
s60: adjusting input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the slope of the straight line segment of the current cooking stage, so that the slope of the change of the actual temperature along with time is consistent with the slope of the straight line segment of the current cooking stage;
when the heating time reaches the duration corresponding to the current cooking stage, taking the final temperature of the current cooking stage as a target temperature, and adopting an ADRC algorithm to respectively adjust the currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve; specifically, the target temperature is used as the input of a nonlinear tracking differentiator in an ADRC algorithm, the actual temperature is used as a controlled object, and is used as the feedback input of an extended state observer in the ADRC algorithm, the current values of a first electromagnetic proportional valve and a second electromagnetic proportional valve are obtained according to the output of an ADRC model and the controlled object, and the first electromagnetic proportional valve and the second electromagnetic proportional valve are controlled according to the current values of the first electromagnetic proportional valve and the second electromagnetic proportional valve;
S70: when the actual temperature reaches the target temperature, reminding to execute a main material throwing action;
s80: refreshing the time of the part after the junction point in the temperature time curve until the main material is put, taking the time after the main material putting action is executed as the starting time, and returning to S40;
the step S80 includes:
s81: judging whether the main material is put in or not, and executing S82 if the main material is put in; if not, executing S83;
s82: refreshing the time of the part behind the boundary point in the temperature time curve, taking the time after the main material throwing action is executed as the starting time, and returning to S40;
s83: closing the second electromagnetic proportional valve, adjusting the first electromagnetic proportional valve to be the minimum current, waiting for the preset time, and returning to S82;
the step S83 includes: closing the second electromagnetic proportional valve, adjusting the first electromagnetic proportional valve to be the minimum current, and repeatedly sending out reminding information of the main material throwing until the main material throwing action is executed to finish reminding, or waiting for the preset time to finish reminding, and returning to S82;
and when the execution time of the current cooking stage reaches the target time or the actual temperature reaches the target temperature, sending out reminding information of auxiliary material throwing.
2. The control method according to claim 1, characterized in that said step S20 includes:
s21: controlling a first electromagnetic proportional valve and a second electromagnetic proportional valve which are connected with the current cooking range to be opened, and igniting;
s22: acquiring the actual temperature of the cooking pot detected by the sensor, judging whether the cooking pot changes according to the preset temperature rise according to the actual temperature, and if so, judging that the cooking pot is the current cooking pot matched with the current cooking range.
3. The control method according to claim 2, wherein in step S22 and step S30, the temperature detected by the thermocouple from the inside of the cooking pot is obtained by wireless communication.
4. The control method according to claim 1, wherein the constant fire power includes a large fire and a small fire, and the step S50 of setting the first electromagnetic proportional valve and the second electromagnetic proportional valve to currents corresponding to the constant fire power includes:
judging whether the constant fire is big fire or small fire, and if the constant fire is big fire, regulating the input current of the first electromagnetic proportional valve and the second electromagnetic proportional valve to be maximum current; if the fire is small, the second electromagnetic proportional valve is closed, and the input current of the first electromagnetic proportional valve is adjusted to be the minimum current.
5. The control method according to any one of claims 1 to 4, characterized by further comprising: when executing the current cooking stage, if receiving a manual fire command input by the outside world, stopping automatically adjusting the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the data information of the navigation menu, switching to adjust the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the manual fire command input by the outside world until receiving a command of automatically executing the switching back of the outside world input, and then recovering the input currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the data information of the navigation menu.
6. The utility model provides a gas cooking system, includes gas-cooker and control module, the gas-cooker includes the kitchen range, the kitchen range has ignition mechanism, inner ring fire furnace end, outer ring fire furnace end, with the first electromagnetic proportional valve of inner ring fire furnace end intercommunication, with the second electromagnetic proportional valve of outer ring fire furnace end intercommunication, its characterized in that, control module includes:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a navigation menu, the data information of the navigation menu comprises a temperature time curve and a plurality of cooking stages, the temperature time curve comprises a plurality of straight lines, and each cooking stage at least corresponds to one straight line segment;
The temperature detection unit is used for acquiring the actual temperature of the current cooking pot;
the control unit is connected with the acquisition unit and the temperature detection unit and is connected with the ignition mechanism, the first electromagnetic proportional valve and the second electromagnetic proportional valve, and is used for controlling the ignition mechanism of the gas stove to ignite the current cooking stove, determining the current cooking pot, executing the current cooking stage and judging whether the current cooking stage has constant fire, if so, executing the steps of setting the first electromagnetic proportional valve and the second electromagnetic proportional valve to currents corresponding to the constant fire and heating the first electromagnetic proportional valve and the second electromagnetic proportional valve to the final temperature corresponding to the current cooking stage with the constant fire; or heating the current cooking stage for a corresponding time period with constant firepower; if not, regulating the current of the first electromagnetic proportional valve and the second electromagnetic proportional valve according to the slope of the straight line segment in the current cooking stage, so that the change slope of the actual temperature along with time is consistent with the slope of the straight line segment in the current cooking stage;
when the heating time reaches the duration corresponding to the current cooking stage, taking the final temperature of the current cooking stage as a target temperature, and adopting an ADRC algorithm to respectively adjust the currents of the first electromagnetic proportional valve and the second electromagnetic proportional valve;
The navigation menu also comprises a corresponding relation between main material throwing and target temperature, wherein the target temperature is the temperature corresponding to the junction point of two adjacent straight line segments in the temperature time curve; the control unit is further configured to:
when the actual temperature reaches the target temperature, reminding to execute a main material throwing action;
judging whether the main material is put in or not, if so, refreshing the time of the part behind the boundary point in the temperature time curve, taking the time after the main material putting action is executed as the starting time, and returning to execute the current cooking stage; if the main material is not put in, closing the second electromagnetic proportional valve, adjusting the first electromagnetic proportional valve to be the minimum current, refreshing the time of the part after the junction point in the temperature time curve after waiting for the preset time, taking the time after the main material is put in as the starting time, and returning to the current cooking stage;
and when the execution time of the current cooking stage reaches the target time or the actual temperature reaches the target temperature, sending out reminding information of auxiliary material throwing.
7. A computer readable storage medium for a gas cooking system, characterized in that the readable storage medium has stored thereon a computer program which, when executed, implements the control method according to any of claims 1-5.
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