CN110617508A - Cooking appliance and cooking parameter setting method and device thereof - Google Patents
Cooking appliance and cooking parameter setting method and device thereof Download PDFInfo
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- CN110617508A CN110617508A CN201911047195.4A CN201911047195A CN110617508A CN 110617508 A CN110617508 A CN 110617508A CN 201911047195 A CN201911047195 A CN 201911047195A CN 110617508 A CN110617508 A CN 110617508A
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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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
- F24C7/086—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination touch control
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Abstract
The invention discloses a cooking appliance and a cooking parameter setting method and device thereof. The method comprises the following steps: receiving a graph input by a user through an input device; converting the received graph into corresponding cooking parameters; and controlling a heating system to heat according to the converted cooking parameters. The device comprises a receiving unit, a conversion unit and a heating control unit. The cooking appliance comprises the cooking parameter setting device. For the problem that the fixed cooking mode of the existing cooking appliance cannot meet the requirements of users, the cooking appliance and the cooking parameter setting method and device thereof enable the users to conveniently draw the temperature curves required by the users to realize various cooking processes, and improve the user experience.
Description
Technical Field
The invention relates to the field of cooking appliances, in particular to a cooking appliance and a cooking parameter setting method and device thereof.
Background
Most induction cookers on the market at present have multiple cooking modes, however, the cooking processes (temperature or power curves) of the cooking modes are set when the induction cookers leave the factory, cannot be changed by users, and are lack of flexibility. The user's needs are various, but the cooking mode of the induction cooker is limited, so an induction cooker with a customizable temperature curve is needed to solve the contradiction.
The touch display screen is a display screen with a touch function, the display screen can detect coordinates of a contact point of a finger and the screen relative to an original point (the original point is generally the upper left corner of the display screen), when the finger slides on the screen, a series of corresponding coordinates can be obtained, the coordinates can be colored, and a curve is displayed on the display screen.
There is a patent document disclosing a method of customizing a cooking curve, which is not so user friendly as a user can set cooking parameters such as heating power or temperature, heating time, etc. for each cooking stage, and if a desired cooking curve is to be obtained, the user needs to create a plurality of cooking stages and set cooking parameters for each stage, which is complicated and troublesome.
Disclosure of Invention
The invention aims to provide a cooking appliance and a cooking parameter setting method and device thereof, which realize the function of customizing a temperature curve by a user and solve the problem that the fixed cooking mode of the existing cooking appliance cannot meet the requirements of the user.
In order to solve the technical problems, the invention adopts the following technical scheme:
in one aspect, the present invention provides a cooking parameter setting method. The cooking parameter setting method is applied to a cooking appliance, and comprises the following steps: receiving a graph input by a user through an input device; converting the received graph into corresponding cooking parameters; and controlling a heating system to heat according to the converted cooking parameters.
Optionally, for the cooking parameter setting method, the input device is a touch display screen.
Optionally, for the cooking parameter setting method, converting the received graph into the corresponding cooking parameter includes: converting pixel coordinates of the received graph on the touch display screen into coordinates in a coordinate system on a cooking parameter graph drawing interface, wherein the abscissa of the coordinate system on the cooking parameter graph drawing interface is cooking time and the ordinate is set temperature or set power; and converting the coordinates in the coordinate system on the cooking parameter graph drawing interface into cooking parameters.
Optionally, for the cooking parameter setting method, the pixel coordinates of the received graph on the touch display screen are converted into the cooking parametersThe coordinates in the coordinate system on the graphical drawing interface include: when the difference between the origin of the coordinate system on the touch display screen and the origin of the coordinate system on the cooking parameter graph drawing interface is d and c pixels in the transverse direction and the longitudinal direction respectively, the abscissa in the coordinate system on the touch display screen is x1nAnd the ordinate is y1nThe point of (a) and the abscissa in the coordinate system on the cooking parameter graph drawing interface are x2nAnd the ordinate is y2nThe relationship between the points of (a) is: x is the number of2n＝x1nD and y2n＝c–y1n。
Optionally, for the cooking parameter setting method, when a vertical coordinate of a coordinate system on the cooking parameter graph drawing interface is a set temperature, converting coordinates in the coordinate system on the cooking parameter graph drawing interface into the cooking parameters includes: when the horizontal axis of the coordinate system on the cooking parameter graph plotting interface represents a time range of a1 minutes to a2 minutes and occupies f pixels, a single pixel on the horizontal axis represents (a2-a1) × 60/f seconds; when the vertical axis of the coordinate system on the cooking parameter graphical drawing interface represents a temperature range of b1 ℃ -b 2 ℃ and occupies e pixels, a single pixel on the vertical axis represents (b2-b1)/e ℃; the abscissa in a coordinate system on a cooking parameter graph drawing interface is x2nAnd the ordinate is y2nThe point of (d) is converted into a cooking parameter: when cooking proceeds to x2n(a2-a1) 60/f second, control the heating system at y2n*(b2-b1)/e℃。
Optionally, in the cooking parameter setting method, the temperature of the pot is detected every preset period, the pixel coordinates corresponding to the real-time temperature of the pot are output according to the detected temperature of the pot and the corresponding time, and the touch display screen is controlled to color the pixels corresponding to the pixel coordinates to obtain the graph representing the real-time cooking temperature.
Optionally, for the cooking parameter setting method, when a vertical coordinate of a coordinate system on the cooking parameter graph drawing interface is the set power, converting the coordinate in the coordinate system on the cooking parameter graph drawing interface into the cooking parameter includes: when the horizontal axis of the coordinate system on the cooking parameter graph drawing interface represents the time range ofa 1-a 2 minutes and occupies f pixels, the single pixel on the horizontal axis represents (a2-a1) 60/f seconds; when the vertical axis of the coordinate system on the cooking parameter graph drawing interface represents a power range of b 3W-b 4W and occupies e pixels, a single pixel on the vertical axis represents (b4-b 3)/eW; the abscissa in a coordinate system on a cooking parameter graph drawing interface is x2nAnd the ordinate is y2nThe point of (d) is converted into a cooking parameter: when cooking proceeds to x2n(a2-a1) 60/f second, control the heating system at y2n*(b4-b3)/e W。
In another aspect, the present invention provides a cooking parameter setting apparatus. The cooking parameter setting device is applied to a cooking appliance, and the cooking parameter setting device includes: a receiving unit for receiving a graphic input by a user through an input device; a conversion unit for converting the received graph into corresponding cooking parameters; and the heating control unit is used for controlling the heating system to heat according to the converted cooking parameters.
Optionally, for the cooking parameter setting device, the input device is a touch display screen, and the converting unit includes: the first conversion module is used for converting pixel coordinates of the received graph on the touch display screen into coordinates in a coordinate system on a cooking parameter graph drawing interface, wherein the abscissa of the coordinate system on the cooking parameter graph drawing interface is cooking time and the ordinate is set temperature or set power; and the second conversion module is used for converting the coordinates in the coordinate system on the cooking parameter graph drawing interface into cooking parameters.
In yet another aspect, the present invention is directed to a cooking appliance. The cooking appliance comprises the cooking parameter setting device.
Compared with the prior art, the technical scheme of the invention has the following main advantages:
according to the cooking appliance and the cooking parameter setting method and device thereof, a user can draw a cooking temperature curve on the touch display screen, the control system of the cooking appliance generates corresponding cooking control parameters according to the temperature curve, the cooking appliance is controlled to cook according to the parameters, and the function of customizing the temperature curve by the user is achieved. Providing a cooking parameter conversion algorithm which can convert a curve representing cooking temperature drawn by a user into an actual cooking control parameter; the temperature curve that the user drawn and the real-time temperature curve of pan are shown simultaneously to the culinary art in-process, make things convenient for the user to monitor cooking utensil's real-time cooking process. For the problem that the fixed cooking mode of the existing cooking appliance cannot meet the requirements of users, the cooking appliance, the cooking parameter setting method and the cooking parameter setting device thereof in the embodiment of the invention enable the users to draw the temperature curves required by the users conveniently to realize various cooking processes, and improve the user experience.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart of a cooking parameter setting method according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an exemplary cooking appliance;
FIG. 3 is a flowchart of step S120 of FIG. 1 provided as an example;
FIG. 4 illustrates an example of a coordinate system on a touch display screen and a coordinate system on a cooking parameter graphical drawing interface;
FIG. 5 illustrates one example of a cooking parameter graphical drawing interface;
fig. 6 illustrates an example of a cooking parameter graphic on the cooking parameter graphic drawing interface;
fig. 7 shows an example of a cooking progress monitoring interface;
fig. 8 is a schematic structural diagram of a cooking parameter setting apparatus according to another embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 is a flowchart of a cooking parameter setting method according to an embodiment of the present invention. The cooking parameter setting method provided by the embodiment is applied to a cooking appliance.
As shown in fig. 1, in step S110, a graphic input by a user through an input device is received.
Fig. 2 is a schematic structural view of an exemplary cooking appliance. As shown in fig. 2, the cooking appliance may include an input device and/or an output device, a heating system, and a Micro Control Unit (MCU) connected to the input device and/or the output device and the heating system. The input device and/or the output device may be a touch display screen for interacting with a user, such as detecting a finger touch signal, displaying cooking progress information, and the like. The touch display screen communicates with the MCU via standard communication protocols such as SPI, IIC, or USART, etc. The heating system is used for heating the cookware, and the heating control signal is from the MCU. Meanwhile, the heating system can detect the real-time temperature of the cookware through a temperature sensor and feed back the real-time temperature to the MCU.
In step S120, the received graph is converted into a corresponding cooking parameter.
Fig. 3 is a flowchart of step S120 in fig. 1, provided as an example. As shown in fig. 3, the specific process of step S120 may include:
and step S122, converting the pixel coordinates of the received graph on the touch display screen into coordinates in a coordinate system on a cooking parameter graph drawing interface, wherein the abscissa of the coordinate system on the cooking parameter graph drawing interface is cooking time and the ordinate is set temperature or set power.
The specific process of step S122 may include: when the origin of the coordinate system on the touch display screen and the origin of the coordinate system on the cooking parameter graph drawing interface are respectively opposite in the transverse direction and the longitudinal directionWhen d and c pixels are differed, the abscissa in the coordinate system on the touch display screen is x1nAnd the ordinate is y1nThe point of (a) and the abscissa in the coordinate system on the cooking parameter graph drawing interface are x2nAnd the ordinate is y2nThe relationship between the points of (a) is: x is the number of2n＝x1nD and y2n＝c-y1nWherein n is 0,1, 2. Wherein the value of p is the number of pixels occupied by the projection of the graph in the horizontal direction.
And step S124, converting the coordinates in the coordinate system on the cooking parameter graph drawing interface into cooking parameters.
When the ordinate of the coordinate system on the cooking parameter graph drawing interface is the set temperature, the specific process of step S124 may include: when the horizontal axis of the coordinate system on the cooking parameter graph plotting interface represents a time range of a1 minutes to a2 minutes and occupies f pixels, a single pixel on the horizontal axis represents (a2-a1) × 60/f seconds; when the vertical axis of the coordinate system on the cooking parameter graphical drawing interface represents a temperature range of b1 ℃ -b 2 ℃ and occupies e pixels, a single pixel on the vertical axis represents (b2-b1)/e ℃; the abscissa in a coordinate system on a cooking parameter graph drawing interface is x2nAnd the ordinate is y2nThe point of (d) is converted into a cooking parameter: when cooking proceeds to x2n(a2-a1) 60/f second, control the heating system at y2n*(b2-b1)/e℃。
When the ordinate of the coordinate system on the cooking parameter graph drawing interface is the set power, the specific process of step S124 may include: when the horizontal axis of the coordinate system on the cooking parameter graph plotting interface represents a time range of a1 minutes to a2 minutes and occupies f pixels, a single pixel on the horizontal axis represents (a2-a1) × 60/f seconds; when the vertical axis of the coordinate system on the cooking parameter graphical drawing interface represents a power range of b 3W-b 4W and occupies e pixels, a single pixel on the vertical axis represents (b4-b3)/e W; the abscissa in a coordinate system on a cooking parameter graph drawing interface is x2nAnd the ordinate is y2nThe point of (d) is converted into a cooking parameter: when cooking proceeds to x2n(a2-a1) 60/f second, control the heating system at y2n*(b4-b3)/e W。
In step S130, the heating system is controlled to heat according to the converted cooking parameters.
The temperature of the cookware can be detected every other preset period, such as 1 second, pixel coordinates corresponding to the real-time temperature of the cookware are output according to the detected temperature of the cookware and the corresponding time, the touch display screen is controlled to color the pixels corresponding to the pixel coordinates, and a graph representing the real-time cooking temperature is obtained.
The cooking parameter setting method will be further described below by taking the example that the cooking appliance is an induction cooker.
Let the touch screen have a pixels in a row and b pixels in a column, as shown in fig. 4. A two-dimensional coordinate system is established by taking the upper left corner of the touch display screen as an origin, the coordinate system is a Y-axis forward direction from the origin downwards, the coordinate system is an X-axis forward direction from the origin to the right, the unit of the X axis and the unit of the Y axis are single pixels, and the coordinate system is called as a coordinate system 1.
When a human finger touches the touch display screen, the touch display screen can detect the pixel coordinate (x) of the touch point of the finger and the screen1，y1) The pixel coordinates are referenced to a coordinate system 1. And after the touch display screen detects the pixel coordinates, transmitting the pixel coordinates to the MCU. When a finger slides on the screen, the MCU can obtain a series of pixel coordinates corresponding to the finger sliding track, the MCU controls the display screen to color screen pixel points corresponding to the pixel coordinates, a curve fitting the finger sliding track can be displayed on the screen, and the fitting degree of the curve is in direct proportion to the resolution of the screen.
A mode named as 'self-definition' is set in the functional mode of the induction cooker, and after the mode is entered, the MCU controls the touch display screen to display a temperature curve drawing interface, as shown in figure 5. The interface comprises a two-dimensional coordinate system, which is referred to as coordinate system 2, wherein the X-axis of the coordinate system represents the cooking time in minutes and the Y-axis represents the set temperature of the pot in degrees celsius. A point in the coordinate system 2 may represent the temperature to which the pot is to be controlled at a certain cooking time point, and a curve in the coordinate system 2 may represent the temperature curve of the pot over a preset cooking time. In the temperature curve drawing interface, a user can draw a monotonously increasing track on an X axis in the range of a coordinate system 2 by using a finger, and the touch display screen sequentially transmits pixel coordinates corresponding to the track to the MCU for storage. Each time the MCU receives a pixel coordinate, the MCU controls the display screen to color the corresponding pixel point, so that a curve following the trajectory of the user's finger is displayed on the display screen, as shown in fig. 6. When the fingers of the user leave the screen (namely the touch display screen does not detect the pixel coordinates), the MCU considers that the user finishes drawing the curve, and converts the curve drawn by the user into corresponding cooking parameters (time and temperature) through a cooking parameter conversion algorithm according to the pixel coordinates of the curve for controlling the heating system to heat.
The cooking parameter conversion algorithm is as follows:
after the user draws a curve on the temperature curve drawing interface, the MCU can obtain a series of pixel coordinates (x) corresponding to the curve1n，y1n) Wherein n is 0,1,2, and p, and the value of p is the number of pixels occupied by the projection of the curve in the horizontal direction. First, the pixel coordinates (x) with reference to the coordinate system 1 are required1n，y1n) Converted into coordinates (x) with reference to the coordinate system 22n，y2n). The origins of coordinate system 1 and coordinate system 2 are different by c and d pixels in the vertical and horizontal directions, respectively, as shown in fig. 4, then x1n、y1nAnd x2n、y2nThe relationship of (1) is: x is the number of2n＝x1n–d，y2n＝c–y1n. Then, x is required to be converted2nAnd y2nConverted to cooking parameters. If the time range represented by the X axis of the coordinate system 2 is 0min to 160min and f pixels are occupied, a single pixel on the X axis represents (160 × 60 ÷ f) s; assuming that the temperature range represented by the Y-axis is 40 deg.C-140 deg.C, and e pixels are occupied, a single pixel on the Y-axis represents (100/e) ° C. From the above relationship, the coordinate can be represented as (x)2n，y2n) The point of (d) is converted into a cooking parameter: when cooking proceeds to (x)2nControlling the temperature of the cooker to be stabilized at (y) at the time of 160 × (60 ÷ f) seconds2n100 ÷ e) DEG C. Further, the pixel coordinate (x) may be set1n，y1n) Direct conversion to cooking parameters: when cooking proceeds to gnAt the moment of second, controlling the temperature of the cooker to be stable at hnIn which g isn＝(x1n–d)*160*60÷f，hn＝(c-y1n)*100÷e。
The user has drawn the temperature curve, and MCU is according to this temperature curve after generating the culinary art parameter, control heating system promptly and begin to work according to the culinary art parameter that generates, simultaneously, MCU is every through predetermineeing the cycle such as the temperature of 1 second detection pan through temperature sensor, MCU is according to the pan temperature that detects and its moment that corresponds, the reverse process of above-mentioned culinary art parameter conversion algorithm is carried out to MCU, can obtain a series of pixel coordinates that correspond with pan real-time temperature, control touch display screen to the pixel colouring that these pixel coordinates correspond, can obtain a curve that represents pan real-time temperature. Therefore, when the induction cooker enters the working state, the MCU controls the touch display screen to display a cooking process monitoring interface, the interface displays two temperature curves which take the coordinate system 2 as a reference, one of the two temperature curves is a dotted line and represents a user-defined temperature curve drawn by a user, and the other one is a solid line and represents a real-time temperature curve of the cooker, as shown in fig. 7. The user can monitor the real-time cooking process of the induction cooker through the cooking process monitoring interface. In addition, because the temperature detected by the temperature sensor has certain hysteresis, and the temperature of the cooker is overshot to a certain extent when the cooker is heated, the real-time temperature curve and the temperature curve drawn by the user have little difference.
When the Y-axis of the coordinate system 2 represents power, similarly, the pixel coordinate (x) with reference to the coordinate system 1 will be1n，y1n) Converted into coordinates (x) with reference to the coordinate system 22n，y2n). The origins of coordinate system 1 and coordinate system 2 are different by c and d pixels in the vertical and horizontal directions, respectively, then x1n、y1nAnd x2n、y2nThe relationship of (1) is: x is the number of2n＝x1n–d，y2n＝c–y1n. Assuming that the power range represented by the Y axis is 500W-2000W (the actual power range is determined according to the specific scheme of the heating system), and the power range occupies e pixels, the Y axis is onRepresents (1500 ÷ e) W. From the above relationship, the coordinate can be represented as (x)2n，y2n) The point of (d) is converted into a cooking parameter: when cooking proceeds to the time (in s) of (x2n x 160 x 60 ÷ f) seconds, the heating system is controlled to stabilize the heating power at (y2n x 1500 ÷ e) W. Further, the pixel coordinate may be (x)1n，y1n) The points of (d) are directly converted into cooking parameters: when cooking proceeds to gnAt the time of second, controlling the heating system to stabilize the heating power at hnW, wherein gn＝(x1n–d)*160*60÷f，hn＝(c-y1n)*1500÷e。
Generally speaking, the higher the power of the induction cooker, the higher the upper limit that the temperature of the bottom of the pot can reach. However, many induction cookers on the market can only adjust power, and if a user uses an induction cooker with adjustable power before, the user may not be used to use the induction cooker with adjustable temperature, so as to be an alternative embodiment, the ordinate of the coordinate system 2 can also represent power so as to meet the operation habit of some users.
Fig. 8 is a schematic structural diagram of a cooking parameter setting apparatus according to another embodiment of the present invention. The cooking parameter setting device provided by the embodiment is applied to a cooking appliance. As shown in fig. 8, the cooking parameter setting apparatus 800 of this embodiment includes a receiving unit 810, a converting unit 820, and a heating control unit 830.
The receiving unit 810 is used for receiving a graphic input by a user through an input device. The input device may be a touch display screen.
The conversion unit 820 is used to convert the received graphics into corresponding cooking parameters. The conversion unit 820 may include a first conversion module and a second conversion module. The first conversion module is used for converting pixel coordinates of the received graph on the touch display screen into coordinates in a coordinate system on a cooking parameter graph drawing interface, wherein the abscissa of the coordinate system on the cooking parameter graph drawing interface is cooking time and the ordinate is set temperature or set power. And the second conversion module is used for converting the coordinates in the coordinate system on the cooking parameter graph drawing interface into cooking parameters.
The heating control unit 830 is used for controlling the heating system to heat according to the converted cooking parameters.
The embodiment also provides a cooking appliance. The cooking appliance comprises the cooking parameter setting device. The cooking appliance of the embodiment of the invention can be an electric cooker, an electric kettle or the like besides the induction cooker.
The cooking appliance and the cooking parameter setting method and device thereof in the embodiment of the invention are characterized in that a user draws a cooking temperature curve on a touch display screen of the cooking appliance, a control system of the cooking appliance generates corresponding cooking control parameters according to the temperature curve, and controls the cooking appliance to carry out cooking according to the parameters, thereby realizing the function of customizing the temperature curve by the user.
According to the cooking appliance and the cooking parameter setting method and device thereof, a user can draw a cooking temperature curve on the touch display screen, the control system of the cooking appliance generates corresponding cooking control parameters according to the temperature curve, the cooking appliance is controlled to cook according to the parameters, and the function of customizing the temperature curve by the user is achieved. Providing a cooking parameter conversion algorithm which can convert a curve representing cooking temperature drawn by a user into an actual cooking control parameter; the temperature curve that the user drawn and the real-time temperature curve of pan are shown simultaneously to the culinary art in-process, make things convenient for the user to monitor cooking utensil's real-time cooking process. For the problem that the fixed cooking mode of the existing cooking appliance cannot meet the requirements of users, the cooking appliance, the cooking parameter setting method and the cooking parameter setting device thereof in the embodiment of the invention enable the users to draw the temperature curves required by the users conveniently to realize various cooking processes, and improve the user experience.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the claims, and all equivalent structures or equivalent processes that are transformed by the content of the specification and the drawings, or directly or indirectly applied to other related technical fields are included in the scope of the claims.
Claims (10)
1. A cooking parameter setting method is applied to a cooking appliance and is characterized by comprising the following steps:
receiving a graph input by a user through an input device;
converting the received graph into corresponding cooking parameters;
and controlling a heating system to heat according to the converted cooking parameters.
2. The cooking parameter setting method of claim 1, wherein the input device is a touch display screen.
3. The cooking parameter setting method of claim 2, wherein converting the received graph into the corresponding cooking parameter comprises:
converting pixel coordinates of the received graph on the touch display screen into coordinates in a coordinate system on a cooking parameter graph drawing interface, wherein the abscissa of the coordinate system on the cooking parameter graph drawing interface is cooking time and the ordinate is set temperature or set power;
and converting the coordinates in the coordinate system on the cooking parameter graph drawing interface into cooking parameters.
4. The cooking parameter setting method of claim 3, wherein converting the pixel coordinates of the received graphic on the touch display screen to coordinates in a coordinate system on the cooking parameter graphic drawing interface comprises:
when the difference between the origin of the coordinate system on the touch display screen and the origin of the coordinate system on the cooking parameter graph drawing interface is d and c pixels in the transverse direction and the longitudinal direction respectively, the abscissa in the coordinate system on the touch display screen is x1nAnd the ordinate is y1nThe point of (a) and the abscissa in the coordinate system on the cooking parameter graph drawing interface are x2nAnd the ordinate is y2nThe relationship between the points of (a) is: x is the number of2n＝x1nD and y2n＝c–y1n。
5. The cooking parameter setting method of claim 4, wherein converting the coordinates in the coordinate system on the cooking parameter graphic drawing interface into the cooking parameters when the ordinate of the coordinate system on the cooking parameter graphic drawing interface is the set temperature comprises:
when the horizontal axis of the coordinate system on the cooking parameter graph plotting interface represents a time range of a1 minutes to a2 minutes and occupies f pixels, a single pixel on the horizontal axis represents (a2-a1) × 60/f seconds;
when the vertical axis of the coordinate system on the cooking parameter graphical drawing interface represents a temperature range of b1 ℃ -b 2 ℃ and occupies e pixels, a single pixel on the vertical axis represents (b2-b1)/e ℃;
the abscissa in a coordinate system on a cooking parameter graph drawing interface is x2nAnd the ordinate is y2nThe point of (d) is converted into a cooking parameter: when cooking proceeds to x2n(a2-a1) 60/f second, control the heating system at y2n*(b2-b1)/e℃。
6. The method as claimed in claim 5, wherein the temperature of the pot is detected every predetermined period, the pixel coordinates corresponding to the real-time temperature of the pot are outputted according to the detected temperature of the pot and the corresponding time, and the touch display screen is controlled to color the pixels corresponding to the pixel coordinates to obtain the graph representing the real-time cooking temperature.
7. The cooking parameter setting method of claim 4, wherein converting the coordinates in the coordinate system on the cooking parameter graphic drawing interface into the cooking parameters when the ordinate of the coordinate system on the cooking parameter graphic drawing interface is the set power comprises:
when the horizontal axis of the coordinate system on the cooking parameter graph plotting interface represents a time range of a1 minutes to a2 minutes and occupies f pixels, a single pixel on the horizontal axis represents (a2-a1) × 60/f seconds;
when the vertical axis of the coordinate system on the cooking parameter graphical drawing interface represents a power range of b 3W-b 4W and occupies e pixels, a single pixel on the vertical axis represents (b4-b3)/e W;
the abscissa in a coordinate system on a cooking parameter graph drawing interface is x2nAnd the ordinate is y2nThe point of (d) is converted into a cooking parameter: when cooking proceeds to x2n(a2-a1) 60/f second, control the heating system at y2n*(b4-b3)/e W。
8. A cooking parameter setting device is applied to a cooking appliance and is characterized by comprising:
a receiving unit for receiving a graphic input by a user through an input device;
a conversion unit for converting the received graph into corresponding cooking parameters;
and the heating control unit is used for controlling the heating system to heat according to the converted cooking parameters.
9. The cooking parameter setting apparatus of claim 8, wherein the input device is a touch display screen, and the conversion unit comprises:
the first conversion module is used for converting pixel coordinates of the received graph on the touch display screen into coordinates in a coordinate system on a cooking parameter graph drawing interface, wherein the abscissa of the coordinate system on the cooking parameter graph drawing interface is cooking time and the ordinate is set temperature or set power;
and the second conversion module is used for converting the coordinates in the coordinate system on the cooking parameter graph drawing interface into cooking parameters.
10. A cooking appliance comprising the cooking parameter setting apparatus of claim 8 or 9.
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