Cooking function database construction method, cooking function database control method, storage medium and cooking device

Abstract

The invention provides a cooking function database construction method, a control method, a storage medium and a cooking device. According to the control method, a cooking function database of the rice cooker is constructed according to the high correlation between rice parameters and water adding amount and the phenomenon that the rice parameters and the taste of rice have certain directivity in the actual application environment of the rice cooker; the database comprises functions of water adding amount and rice parameters of rice of different rice types under different rice weights in different cooking modes. And during cooking, calling an applicable function from the cooking function database according to the obtained cooking mode and rice weight information by taking a certain rice parameter value as a target, and controlling the water adding amount of the cooking device by utilizing the called function, so that the cooking device can cook rice with the rice parameter target value. According to the method, a quantitative rice-water proportion control method can be used for cooking rice, and stable rice conforming to personal taste preference is obtained.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and particularly to a method for constructing a cooking function database, a control method, a storage medium, and a rice cooker. Background Art

[0002] Currently, cooking rice with a rice cooker has been widely used. However, the control of the rice-to-water ratio basically relies on the user's own experience, or the rice cup provided by the manufacturer and the scale line on the rice cooker, and the taste of the rice is often not guaranteed.

[0003] Using the method of visual inspection to control the rice-to-water ratio with a rice cup and a scale line is difficult to master even for users with normal vision, let alone visually impaired users.

[0004] In addition, rice cookers with a timing function are also relatively common in the market. However, most of these rice cookers require putting rice and water into the pot at the same time in advance and implementing the cooking program when the timing time arrives. If the timing time is relatively long, there is a problem that the rice is soaked in water for too long, ultimately affecting the taste of the rice. Summary of the Invention

[0005] In view of the above problems, the present invention provides a method for constructing a cooking function database, a control method, a storage medium, and a rice cooker, which can enable users to obtain rice with stable taste and meeting personal taste preferences.

[0006] An object of the present invention is to provide a method for constructing a cooking function database, which includes: constructing a cooking function, where the cooking function includes a function related to the water addition amount and rice parameters in a certain cooking mode set in a specific rice cooker; constructing a cooking function database of this rice cooker according to the cooking function.

[0007] Further, the rice parameters include one of the rice water absorption rate, the content of rice, the ratio of the weight of absorbed water to the weight of rice, and the ratio of the weight of absorbed water to the weight of rice. The cooking function includes at least one of a rice variety function in a cooking mode considering the influence of the difference in water loss during the cooking process of a specific rice cooker on the taste of rice or porridge, a function of the water addition amount and rice parameters in a cooking mode not considering the influence of the difference in water loss during the cooking process of a specific rice cooker on the taste of rice or porridge, and a function of the water addition amount and rice parameters in the mode of cooking porridge with leftover rice of a specific rice cooker.

[0008] Further, the construction of the rice variety function in a cooking mode considering the influence of the difference in water loss during the cooking process of a specific rice cooker on the taste of rice or porridge includes:

[0009] Constructing a rice weight function of a certain rice variety with a certain rice weight in a certain cooking mode set in a specific rice cooker;

[0010] Combine the rice weight functions of this rice variety under different rice weights to construct the rice variety function of this rice variety under a certain rice cooking mode set in a specific rice cooker.

[0011] Furthermore, it also includes:

[0012] Select typical rice varieties and construct typical rice variety functions under a certain rice cooking mode set in a specific rice cooker;

[0013] Combine multiple typical rice variety functions to construct a set of typical rice variety functions under this rice cooking mode set in a specific rice cooker, and this set of typical rice variety functions constitutes the rice cooking function under this rice cooking mode set in a specific rice cooker.

[0014] Furthermore, in the rice cooking mode where the difference in water loss during the rice cooking process of a specific rice cooker is not considered to affect the taste of the cooked rice or porridge, the function of the water addition amount and rice parameters is: y = (x - C) / (m 米 + x - C), where y is the rice parameter, x is the water addition amount, C is a constant preset to represent the water loss amount, and m 米 is the rice weight.

[0015] Furthermore, in the mode of cooking porridge with leftover rice in a specific rice cooker, the function of the water addition amount and rice parameters is y = (x - C) / (m 剩饭 *(1 - C1)+ x - C), where y is the rice parameter, x is the water addition amount, C is a constant preset to represent the water loss amount, and m 米 is the cooked rice weight of m 剩饭 , and C1 is the preset water absorption rate of leftover rice.

[0016] Furthermore, the construction of the rice variety function in the rice cooking mode considering the difference in water loss during the rice cooking process of a specific rice cooker affecting the taste of the cooked rice or porridge also includes: obtaining the room temperature; comparing the room temperature with the preset temperature range, and constructing the rice variety function at a certain room temperature within the temperature range where the room temperature is located.

[0017] Furthermore, constructing the rice weight function includes: at a certain room temperature, take rice of a certain rice variety with a rice weight of m 米 ; add water with an amount of x1, and cook the rice using a certain rice cooking mode of a specific rice cooker; after the rice cooking program ends, weigh the weight of the cooked rice to obtain the weight of the cooked rice m 饭 ; calculate the corresponding rice parameter value y1 according to the calculation formula of a certain rice parameter, and thus obtain the data of the first group of rice parameter values and water addition amounts (y1, x1); take rice of the same rice variety and rice weight m 米 , take the water addition amount at appropriate intervals, and repeat the above steps of adding water, weighing, and calculating to obtain multiple groups of data of rice parameter values and water addition amounts (y2, x2), …… (y n , x n); Process the obtained multiple sets of data to obtain the functional relationship y of the water addition amount and rice parameters when the rice weight is m under a certain room temperature and a certain cooking mode of a specific rice cooker. 米 When m米 = f(x).

[0018] Another object of the present invention is to provide a rice cooker control method, which includes: obtaining the condition parameters of cooking; obtaining the target value of rice parameters; obtaining the rice weight; calling the rice weight function corresponding to the rice weight under the corresponding cooking conditions from the pre-stored cooking function database according to the cooking condition parameters and the rice weight, and the rice weight function reflects the functional relationship between the water addition amount and the rice parameters under the corresponding rice weight; controlling the water addition amount of the rice cooker based on the called rice weight function so that the rice cooker can obtain rice with the target value of rice parameters.

[0019] Further, the cooking condition parameters include the cooking mode, and the rice parameters are one of the rice water absorption rate, the content of rice, the ratio of the absorbed water to the rice weight, and the ratio of the absorbed water to the rice weight.

[0020] Further, the cooking mode includes one or more of standard cooking, fine cooking, cooking miscellaneous grains, cooking raw rice porridge, and cooking leftover rice porridge. Further, the cooking function database includes cooking functions under different cooking modes, and the cooking functions under at least one cooking mode include a typical rice variety function set under this cooking mode, and each typical rice variety function in the typical rice variety function set includes the functional relationship between the water addition amount and the rice parameters under different rice weights.

[0021] Further, the cooking functions under different cooking modes include the functional relationship between the water addition amount and the rice parameters under the cooking mode that does not consider the influence of the difference in the water loss during the cooking process of a specific rice cooker on the taste of the rice or porridge.

[0022] Further, the cooking mode that does not consider the influence of the difference in the water loss during the cooking process of a specific rice cooker on the taste of the rice or porridge is at least one of the raw rice porridge cooking mode and the rice cooking mode.

[0023] Further, the cooking functions under different cooking modes include the functional relationship between the water addition amount and the rice parameters under the leftover rice porridge cooking mode.

[0024] Further, controlling the water addition amount of the rice cooker based on the called rice weight function so that the rice cooker can obtain rice with the target value of rice parameters includes: calculating the target water addition amount according to the target value of the rice parameters based on the called rice weight function; adding water according to the difference between the target water addition amount and the actual water addition amount so that the parameter value of the rice obtained by the rice cooker coincides with the target value of the rice parameters.

[0025] Further, controlling the water addition amount of the rice cooker based on the called rice weight function, so that the rice cooker can obtain rice with the target value of the rice parameters includes: based on the called rice weight function, calculating the parameter value of the rice that the rice cooker can obtain according to the real-time water addition amount; adjusting the water addition amount according to the difference between the parameter value of the rice that the rice cooker can obtain and the target value of the rice parameters until the parameter value of the rice that the rice cooker can obtain coincides with the target value of the rice parameters.

[0026] Further, it further includes a verification step, and the verification step includes: obtaining verification start information; obtaining the actual rice weight; based on the rice weight function, calculating the actual rice parameter value according to the actual rice weight; comparing the actual rice parameter value with the rice parameter values obtained from multiple typical rice variety functions under the same cooking mode; and replacing the currently selected typical rice variety function with the typical rice variety function corresponding to the smallest difference.

[0027] Another object of the present invention is to provide a storage medium storing a program, and when the program is executed by a processor, the processor is configured to execute the above-mentioned rice cooker control method.

[0028] Another object of the present invention is to provide a rice cooker, which includes: a rice cooker main body with a pot inside for receiving the object to be cooked; a heating part for heating the pot; a weighing device provided on the weighing pot and / or the object to be cooked in the pot; a display operation panel for information input and / or information output; and a controller for implementing the programs and cooking programs involved in the above-mentioned rice cooker control method.

[0029] Further, it further includes a timing device and a water supply system, and the controller is configured to control the water supply system to supply water to the pot of the rice cooker regularly and quantitatively according to the timing time set by the timing device and the target water addition amount calculated by the above-mentioned rice cooker control method.

[0030] Further, a device for interacting with visually impaired users, and the controller is configured to implement the programs and information involved in the above-mentioned rice cooker control method through friendly interaction with visually impaired users.

[0031] Beneficial effects:

[0032] In the present invention, a cooking function database is pre - constructed in the rice cooker. When preparing for cooking, it is possible to aim at a specific value of a certain rice parameter, and according to the obtained cooking condition parameters and rice weight information, call the applicable rice weight function from the cooking function database, and use the called rice weight function to control the water addition amount of the rice cooker, so that the rice cooker can cook rice with the target value of the rice parameter. After the cooking program ends, verification can also be carried out to update the typical rice variety function with the verification result. The cooking control method of the present invention is simple and practical, enabling users to cook rice using a quantitative rice - to - water ratio control method and obtain stable rice that meets personal taste preferences.

[0033] The above description is only an overview of the technical solution of the present invention. In order to be able to more clearly understand the technical means of the present invention, it can be implemented according to the content of the description. And in order to make the above - mentioned and other purposes, features and advantages of the present invention more obvious and understandable, the following specifically describes the embodiments of the present invention.

[0034] According to the following detailed description of the specific embodiments of the present invention in conjunction with the drawings, those skilled in the art will more clearly understand the above - mentioned and other purposes, advantages and features of the present invention. Brief Description of the Drawings

[0035] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0036] Figure 1 It is a schematic flow chart of a rice cooker control method provided by the first embodiment of the present invention.

[0037] Figure 2 It is a schematic diagram of the rice variety function of a certain rice variety in the cooking mode A of the rice cooker P provided by an embodiment of the present invention.

[0038] Figure 3 It is a schematic diagram of the distribution of the rice water absorption rate in each water absorption rate interval when the rice weight is 210g and the water addition amount is 355g for 24 rice varieties in the cooking mode A of the rice cooker P provided by an embodiment of the present invention.

[0039] Figure 4 It is a schematic diagram of the selection method of typical rice varieties provided by an embodiment of the present invention.

[0040] Figure 5 It is a schematic diagram of the database structure provided by an embodiment of the present invention.

[0041] Figure 6 It is a schematic diagram of the database structure provided by another embodiment of the present invention.

[0042] Figure 7 Schematic diagram of the structure of a rice cooker provided by an embodiment of the present invention.

[0043] Figure 8 Schematic diagram of the display operation panel provided by an embodiment of the present invention.

[0044] Figure 9 Schematic diagram of the framework structure of the controller and its related components provided by an embodiment of the present invention.

[0045] Figure 10 Schematic diagram of the first working process of the first rice cooker provided by an embodiment of the present invention.

[0046] Figure 11 Schematic diagram of the second working process of the first rice cooker provided by an embodiment of the present invention.

[0047] Figure 12 Schematic diagram of the working process of the second rice cooker provided by an embodiment of the present invention. Detailed implementation manners

[0048] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0049] First Embodiment

[0050] Rice cooker control method

[0051] The first embodiment of the present invention provides a rice cooker control method. According to the high correlation between the rice parameters (including rice water absorption rate, rice content, ratio of water absorbed to rice weight, ratio of water absorbed to rice weight) and the water addition amount in the actual application environment of the rice cooker, and the phenomenon that the rice parameters have a certain directivity to the taste of the rice, a cooking function database of the rice cooker (including the functional relationship between the water addition amount and the rice parameters of different rice varieties with different rice weights under different cooking modes) is constructed and pre-stored in the storage medium of the rice cooker. When preparing for cooking, taking a specific value of a certain rice parameter as the target, according to the obtained cooking condition parameters (including cooking mode) and rice weight information, the applicable rice weight function is called from the cooking function database, and the water addition amount of the rice cooker is controlled by using the called rice weight function, so that the rice cooker can cook rice with the target value of the rice parameters. After the cooking program ends, verification can also be performed to update the typical rice variety function with the verification result.

[0052] The rice cooker control method of the present invention is simple and practical, enabling users to cook rice using a quantitative rice-water ratio control method, resulting in stable rice that meets personal taste preferences.

[0053] Specifically, as Figure 1 shown, the rice cooker control method of the present invention includes the following steps:

[0054] S100: Construct and store a rice cooking function and a rice cooking function database: After research, the applicant found that in the actual application scenario of a rice cooker, under a certain room temperature environment, if the rice cooker, the rice cooking mode, and the rice variety are determined, and the weight of the rice added to the rice cooker is constant, there is a high correlation between the rice parameters (including rice water absorption rate, rice content, ratio of rice weight to absorbed water, ratio of absorbed water to rice weight, specifically defined below) and the water addition amount, and there is a certain directivity between the rice parameters and the taste of the rice. Based on this, a rice cooking function for a specific rice cooking mode set in the rice cooker and a rice cooking function database for this rice cooker are invented and pre-stored on the storage medium of the rice cooker.

[0055] The rice parameters include rice water absorption rate, rice content, ratio of rice weight to absorbed water, ratio of absorbed water to rice weight, and are specifically defined as follows:

[0056] The weight relationship before and after rice cooking is as follows:

[0057] m 米 + x = m 饭 + x 损 …(1)

[0058] Where: m 米 is the weight of the rice added to the rice cooker pot, in g or Kg (the same below), x is the weight of the water added to the rice cooker pot, m 饭 is the weight of the rice, x 损 is the weight of the water lost during the rice cooking process.

[0059] The cooked rice consists of rice and absorbed water, and the weight relationship is as follows in formula (2):

[0060] m 饭 = m 米 + x 吸 …… (2)

[0061] Where, m 饭 is the weight of the cooked rice, in g or Kg (the same below), m 米 is the weight of the rice added to the rice cooker pot, x 吸 is the weight of the water absorbed during the rice cooking process;

[0062] Their relationship is as follows, defined as the rice parameter y:

[0063] Rice water absorption rate: y吸 = x 吸 / m 饭 = (m 饭 - m 米 ) / m 饭 = 1 - m 米 / m 饭 …(3)

[0064] Content of rice: y 含 = m 米 / m 饭

[0065] Ratio of rice weight to absorbed water: y 米水比 = m 米 / x 吸

[0066] Ratio of absorbed water to rice weight: y 水米比 = x 吸 / m 米

[0067] In the actual application scenario of the rice cooker, in a certain room temperature environment, if the rice cooker, cooking mode, and rice variety are determined, and the weight of the rice added to the inner pot of the rice cooker is certain, the above four rice parameters and the water addition amount are highly correlated. Based on this, a function of the water addition amount and the above rice parameters can be constructed in advance, and any one of the above rice parameters has a certain directivity with the taste of the rice. Therefore, in the actual application scenario, as long as one of the above four rice parameters is selected and applied in the rice cooker control method, the effect is the same. In the following text, the application of the rice parameter, the water absorption rate as one of the rice parameters, and the rice water absorption rate should be regarded as equivalent.

[0068] Specifically, the steps for constructing the cooking function database include:

[0069] S1001: Construct the cooking function

[0070] The cooking function is a function of the water addition amount and the rice parameters in a certain cooking mode set in the specific rice cooker. It can be a rice variety function in a cooking mode where the difference in the water x 损 lost during the cooking process of the specific rice cooker has a greater impact on the taste of the rice (porridge), a function of the water addition amount and the rice parameters in a cooking mode where the difference in the water x 损 lost during the cooking process of the specific rice cooker has a smaller impact on the taste of the rice (porridge), or a function of the water addition amount and the rice parameters in the mode of cooking porridge with leftover rice in the specific rice cooker. In the actual application of the rice cooker, in some cooking modes of some rice cookers, it is necessary to consider the water x 损The impact of the difference on the taste of cooked rice (porridge), such as the standard cooking mode of a first rice cooker, or the standard cooking and raw rice porridge cooking modes of a second rice cooker, or all the rice cooking modes and raw rice porridge cooking modes of a third rice cooker. In certain rice cooking modes of certain rice cookers, there is no need to consider the water x lost during the cooking process 损 The impact of the difference on the taste of cooked rice (porridge), such as the fine cooking mode and raw rice porridge cooking mode of a first rice cooker, or the fine cooking mode of a second rice cooker, or all the rice cooking modes and raw rice porridge cooking modes of a fourth rice cooker. For a specific rice cooker, whether it is necessary to consider the water x lost during the cooking process 损 The impact of the difference on the taste of cooked rice (porridge), and in which rice cooking mode it is necessary to consider the water x lost during the cooking process 损 The impact of the difference on the taste of cooked rice (porridge) is determined by the manufacturer.

[0071] (i) First, the water x lost during the cooking process of a specific rice cooker will be briefly introduced below 损 The construction of the rice variety function in the rice cooking mode where the impact of the difference on the taste of cooked rice (porridge) is relatively large

[0072] The rice variety function refers to the set of multiple different rice weight functions of a certain rice variety at a certain room temperature and in a certain rice cooking mode set in the rice cooker; the rice variety function can cover the range between the minimum cooking amount and the maximum cooking amount in the rice cooking mode of the rice cooker, and can meet the accuracy requirements for calculating the water addition amount or rice parameter values in practical applications.

[0073] Constructing the rice variety function of a certain rice variety includes two steps:

[0074] First, construct the rice weight function

[0075] The rice weight function refers to the function between the rice parameters and the water addition amount at a certain rice weight of a certain rice variety at a certain room temperature and in a certain rice cooking mode of a specific rice cooker.

[0076] The steps for constructing the rice weight function are as follows:

[0077] At a certain room temperature (such as 20 °C), take the rice weight of a certain rice variety as m 米 of rice;

[0078] Add water with a water amount of x1, and cook the rice with a certain rice cooking mode of a specific rice cooker (for example, cook the rice with cooking mode A of rice cooker P);

[0079] Weigh the cooked rice at a certain time point T after the cooking program ends and enters the warming stage (such as the 10th minute of the warming stage, defined as the predetermined time point T for weighing the cooked rice weight), and obtain the weight m of the cooked rice 饭 ;

[0080] From the formula y = y 吸= x 吸 / m 饭 = (m 饭 - m 米 ) / m 饭 = 1 - m 米 / m 饭 The rice parameter y1 (the rice parameter here is the water absorption rate) is calculated, and thus the data of the rice parameter values and the water addition amount of the first group (y1, x1) can be obtained;

[0081] Continue to take rice of the same variety and weight m 米 and cook rice with water addition amounts x2 at appropriate intervals. By repeating the above steps of adding water, weighing, and calculating, the data of the rice parameter values and the water addition amount of the second group (y2, x2) can be obtained;

[0082] And so on, the array of the rice parameter values and the water addition amount when the rice variety is at a certain room temperature of 20°C and in a certain cooking mode of a specific rice cooker with a rice weight of m 米 can be obtained: (y n , x n );

[0083] Generally, meaningful rice parameter values, such as the value of the rice water absorption rate, are within a certain range. For example, the rice water absorption rate is between 50% - 65%. If it is lower than 50%, it means that there is too little water and the rice is undercooked. If it is higher than 65%, it means that there is too much water and the rice is cooked like porridge. Therefore, keep the rice water absorption rate within a meaningful numerical range; similarly, the meaningful water absorption rate of porridge is also within a certain range, such as between 75% - 95%; the range of the meaningful water absorption rate of the said rice and porridge is not limited to the said range; so the value range of the water addition amount x only needs to keep the value of the rice water absorption rate within a meaningful range;

[0084] Next, by performing data processing on the obtained series of arrays, including trend line fitting, the functional relationship y 米 = f(x) between the water addition amount and the rice parameter when a certain rice variety is at a certain room temperature, in a certain cooking mode of a specific rice cooker, and with a rice weight of m m米 can be obtained. In this embodiment, it is the functional relationship between the water addition amount and the rice water absorption rate. For example, Figure 2 the y m210 in

[0085] is the rice weight function of a certain early indica rice at a room temperature of 20°C, in cooking mode A of rice cooker P, and with a rice weight of 210 grams. Specifically: m210 y 2 = -0.0000014325x

[0086] From Figure 2It can be known that for the function y after fitting m210 and the corresponding experimental data, the correlation index R 2 is 0.9995219496, which indicates a high degree of coincidence between the fitted function and the corresponding test data. The rice parameters of the rice variety at the rice weight can be represented by the fitted function.

[0087] Next, according to the method of constructing the rice weight function described above, take rice with different rice weights m 米 to obtain the rice weight functions at different rice weights such as y m1 , y m2 ……y mn For example, the rice weight functions corresponding to the curves y Figure 2 in m100 , y m150 and y m420 . Among them, the values of the rice weights m1, m2,... m n depend on the accuracy requirement for calculating the rice parameters using the rice weight functions of adjacent rice weights m i and m i+1 in practical applications. Moreover, the rice weights m1, m2,... m n can cover the calculation requirements within the minimum and maximum cooking ranges in the cooking mode of the rice cooker.

[0088] Then, combine the rice weight functions y m1 , y m2 ……y mn together to form the rice variety function of this rice variety at a certain room temperature and a specific cooking mode of a specific rice cooker. Figure 2 Shown in

[0089] is the rice variety function of a certain rice variety at room temperature 20°C and cooking mode A of rice cooker P.

[0090] In the practical application of the rice cooker, due to the change of seasons, the change of the ambient temperature affects the initial temperature of the ingredients to be cooked (rice and water).

[0091] If the difference between the initial temperature change of the ingredients to be cooked (rice, water) in the pot and the water addition amount or rice parameter value calculated by the cooking function and the actual result is relatively small, at a certain room temperature (such as 20°C, assuming that the room temperature, the initial temperature of the ingredients to be cooked, and the temperature of the pot are approximately the same, the same below), the constructed rice variety function can be applicable to the scenario of cooking the ingredients to be cooked at different initial temperatures.

[0092] On the contrary, a solution needs to be found. In an embodiment of the present invention, the solution is to, according to the size of the difference between the initial temperature difference of the ingredients to be cooked and the water addition amount or rice parameter value calculated by the cooking function and the actual result, divide the initial temperature T of the ingredients to be cooked in the pot throughout the four seasonsi The variation range (assuming 5°C - 35°C) is divided into several intervals, and the rice variety function constructed at a certain room temperature within each interval is applied. Assume it is divided into three intervals (for example: T1 is 25°C, T2 is 15°C, and the two temperature values of T1 and T2 are preset by the manufacturer, and T1 > T2):

[0093] T i When T >= T1, the rice variety function is constructed at a certain room temperature (such as 30°C). When Ti >= T1, the rice variety function at this room temperature is used;

[0094] T i When T <= T2, the rice variety function is constructed at a certain room temperature (such as 10°C). When T i <= T2, the rice variety function at this room temperature is used;

[0095] When T2 < T i < T1, the rice variety function is constructed at a certain room temperature within this interval (such as 20°C). When T2 < T i < T1, the rice variety function at this room temperature is used;

[0096] It should be noted that whether to consider the influence of environmental temperature when constructing the rice variety function is determined by the manufacturer. The manufacturer can choose to consider the influence of environmental temperature or not. If the manufacturer chooses not to consider the influence of environmental temperature, the built-in rice variety function is the one constructed without considering the influence of environmental temperature. For example, Figure 5 the rice variety functions shown in cooking modes A and B in Figure 6 or similar rice variety functions. If the manufacturer chooses to consider the influence of environmental temperature, the built-in rice variety function is the one constructed considering the influence of environmental temperature. For example,

[0097] Construction of typical rice variety functions

[0098] In the actual application of the rice cooker, for rice of different varieties or even rice of the same variety purchased in different batches but stored for different times, when the rice cooker, cooking mode, rice weight, and water addition amount are the same, the rice parameter values are different. There are many rice varieties on the market, and their rice parameter values are different. It is impossible to construct a rice variety function for each rice variety. In order to make the control method of the present invention applicable to as many rice varieties on the market as possible, the solution of the present invention is to construct several typical rice variety functions under each cooking mode set in the specific rice cooker according to the distribution of rice parameter values of most rice varieties (for example, Figure 5The typical rice variety function in the rice cooking mode A of the rice cooker P shown; in actual application, according to the actual rice parameters of the rice variety used during cooking, based on user experience, or by selecting the most suitable typical rice variety function from the typical rice variety functions of a specific rice cooker in a certain cooking mode through a calibration program, and borrowing the appropriate rice weight function in the selected most suitable typical rice variety function to calculate the rice parameters or water addition amount of the rice variety for cooking.

[0099] Typical rice variety function: It refers to, in a certain room temperature environment and in a certain cooking mode set in the rice cooker, a rice variety function L constructed by selecting several rice varieties at appropriate rice parameter value positions according to the distribution of the rice parameters (when the rice weight and water addition amount are the same) of the rice varieties available in the market. i (i = 1 - n), which is called the typical rice variety function L of a certain cooking mode of this rice cooker. i (i = 1 - n); the said typical rice variety function L i (i = 1 - n) can cover as many rice varieties in the market as possible in actual application, and can meet the accuracy requirements of the manufacturer when calculating the water addition amount or rice parameter value of the actual rice variety using the appropriate rice weight function in the selected typical rice variety function L. i

[0100] Figure 3 Figure (a) in shows the distribution of the rice water absorption rate of 24 varieties of rice in each water absorption rate interval when the rice weight is 210 g and the water addition amount is 355 g in the rice cooking mode A of the rice cooker P in an embodiment of the rice cooker control method of the present invention. Figure 3 Figure (b) in shows the classification of the 24 varieties of rice in the embodiment shown in Figure (a), among which there are 15 varieties of japonica rice, 5 varieties of glutinous rice, 2 varieties of indica rice, 1 variety of brown rice, and 1 variety of eight-treasure porridge (miscellaneous grains).

[0101] According to Figure 3 Figure (a) of, it can be known that the rice water absorption rate corresponding to 23 varieties of the 24 varieties of rice is distributed between 56% - 60%, and the peak value is 58%; only one variety of rice (brown rice) has a rice water absorption rate outside the range of 56% - 60%, which is 50.35%.

[0102] Figure 3 Figure (a) in shows a small sample survey, which is not representative. Here, it is only used to introduce the steps of constructing the typical rice variety function in the embodiment of the present invention through this sample survey:

[0103] Select as many types of rice in the market as possible. According to the distribution schematic of the rice water absorption rate of each rice variety in each interval at a certain room temperature (such as 20 °C), in the cooking mode of a specific rice cooker (for example, in the rice cooking mode A of the rice cooker P), with a certain rice weight and a certain water addition amount, such as Figure 4As shown in the figure; when considering the accuracy of subsequent calculations of the water absorption rate of cooked rice, several rice varieties at appropriate positions of rice parameter values are selected. Taking Figure 4 as an example, starting from the peak of the distribution of the number of rice varieties in the range of the water absorption rate of cooked rice, a rice variety L3 is selected at about 58% of the water absorption rate of cooked rice, a rice variety L2 is selected at about 59% above it, and a rice variety L1 is selected at about 60%; a rice variety L4 is selected at 57% below it, … until L n . When selecting, it is necessary to consider that there may be unknown rice varieties outside the known maximum and minimum water absorption rates of cooked rice.

[0104] The rice variety function L1, L2, … L n constructed from the selected rice varieties L1, L2, L3, … L n is called the typical rice variety function L of a certain rice cooker in a certain cooking mode at a certain room temperature. i .

[0105] And so on, the typical rice variety function in other cooking modes (such as cooking mode B) of this rice cooker is constructed.

[0106] If the difference between the initial temperature of the cooking object in the pot and the water addition amount or the rice parameter value calculated by the cooking function and the actual result is relatively small, the typical rice variety function L i (i = 1 - n) is constructed according to the above method. For example, Figure 5 the typical rice variety functions in cooking modes A and B of rice cooker P in

[0107] In addition, the above method can also be referred to. According to the distribution of the water absorption rate of each rice variety as shown in Figure 4 the figure, when considering the accuracy of subsequent calculations of the water absorption rate of cooked rice, several rice varieties at appropriate positions of rice parameter values are selected to construct a virtual typical rice variety function L i (i = 1 - n). The rice varieties corresponding to the virtual typical rice variety function L i (i = 1 - n) may not be actual rice varieties that can be seen in the market.

[0108] If the difference between the initial temperature of the cooking object in the pot and the water addition amount or the rice parameter value calculated by the cooking function and the actual result is relatively large, the typical rice variety function L i (i = 1 - n) is constructed by using the regional division of the initial temperature of the cooking object, and the typical rice variety functions in cooking modes A and B of rice cooker P in Figure 6 are constructed.

[0109] (ii) Construction of the water addition amount and rice parameter function in the cooking mode where the difference in the water x 损 lost during the cooking process of a specific rice cooker has a relatively small impact on the taste of the cooked rice (porridge).

[0110] If, in a certain rice cooking mode of a rice cooker, under different room temperature environments, within the range of the cooked rice (porridge), when cooking rice or porridge (uncooked rice), the difference in the lost water x 损 has little impact on the taste of the rice or porridge, then the lost water x 损 is regarded as a constant C (i.e., x_loss ≈ C). Then the functional relationship between the water addition amount and the rice parameters (in this embodiment, the water absorption rate of the rice) can be simplified as: y = y 吸 = x 吸 / m 饭 = (x - x 损 ) / (m 米 + x - x 损 ) = (x - C) / (m 米 + x - C)…(5).

[0111] Since this function is applicable to all rice varieties and all rice weights in this rice cooking mode, the corresponding rice variety function, rice weight function, and typical rice variety function in this rice cooking mode are all this function.

[0112] In some embodiments of the present invention, formula (5) is used as the functional relationship between the water addition amount and the water absorption rate, which is one of the rice parameters, of a certain rice cooking mode of a rice cooker and is stored on the storage medium of the rice cooker, such as Figure 5 the function example in the rice cooking mode C of the rice cooker P is stored on the storage medium within the storage medium of the rice cooker.

[0113] (iii) The construction of the functional relationship between the water addition amount and the rice parameters for the mode of cooking porridge with leftover rice in a specific rice cooker is introduced below

[0114] In daily life, it is common to cook porridge with leftover rice. Considering the factor that users generally have a relatively large tolerance for the taste of porridge, in order to simplify the function of the water addition amount and the rice parameters for cooking porridge with leftover rice, in an embodiment of the present invention, the method for constructing the function of the water addition amount and the rice parameters for cooking porridge with leftover rice is as follows:

[0115] First, assume that in a certain rice cooking mode of a specific rice cooker (for example, the porridge cooking (leftover rice) mode), the lost water x 损 tends to a constant C (i.e., x 损 ≈ C), and the rice parameters of the leftover rice are generally within a certain range. For example, the water absorption rate of the rice is between 52% - 64%. Take an intermediate value C1 (such as 58%) as the water absorption rate y 剩饭 of the leftover rice, and in this way, convert the weight m 剩饭 of the leftover rice into the weight m 剩饭米 of the rice in the leftover rice using the formula;

[0116] The weight m 剩饭米 of the rice in the leftover rice = the weight m 剩饭*(1 - y 剩饭 ), then

[0117] The functional relationship between the water addition amount for cooking porridge with leftover rice and the rice parameters can be simplified as:

[0118] y = y 吸 =(x - x 损 ) / (m 剩饭米 + x - x 损 )=(x - x 损 ) / (m 剩饭 *(1 - y 剩饭 )+ x - x 损 )=(x - C) / (m 剩

[0119] 饭 *(1 - C1)+ x - C)…(6)

[0120] x 损 is determined according to the actual situation of the cooking mode of the rice cooker and is pre - stored in the storage medium.

[0121] In the porridge - cooking (leftover - rice) mode, obtaining the rice weight m 米 refers to obtaining the weight m of the leftover rice 剩饭 . In addition, the rice water absorption rate range of the leftover rice is not limited to the above range. Taking the intermediate value C1 as y 剩饭 is only one specific embodiment, and the value of y 剩饭 is not limited to this.

[0122] Since this function is applicable to all rice varieties and all rice weights in this cooking mode, the corresponding rice - variety function, rice - weight function, and typical - rice - variety function in this cooking mode are all this function.

[0123] In some embodiments of the present invention, using formula (6) as the functional relationship between the water addition amount and the rice parameters for a certain cooking mode (such as the porridge - cooking (leftover - rice) mode) of the rice cooker, it is stored on the storage medium of the rice cooker, as shown in Figure 5 the database structure example in the cooking mode D of the rice cooker P.

[0124] S1002: Construct the cooking - function database of the rice cooker

[0125] The cooking - function database of the rice cooker: Composed of the functions related to the water addition amount and the rice parameters under each cooking mode set in the rice cooker, and stored on the storage medium in the storage medium of the rice cooker.

[0126] In step S1002, combining at least one or several cooking functions in the cooking mode A, cooking mode B, cooking mode C, and cooking mode D constructed in the above - mentioned manner to form a cooking - function database, as shown in Figure 5Or Figure 6 The example of the overall database structure shown is stored on the storage medium within the storage medium of the rice cooker.

[0127] Understandably, using the high correlation between the water addition amount and the rice parameters, and the phenomenon that the rice parameters and the taste of the rice have a certain directivity in the actual application scenario of the rice cooker, the method of constructing the cooking function of the rice cooker is not limited to the above three function construction methods; the method of constructing the cooking function database of the rice cooker is not limited to Figure 5 And Figure 6 The embodiments shown.

[0128] S101: Obtain the cooking condition parameters and the target value y of the rice parameters 目

[0129] In this step, the obtained cooking condition parameters include the cooking mode; the cooking mode corresponds to the cooking programs preset in the rice cooker, including at least one of multiple modes such as standard cooking, fine cooking, cooking miscellaneous grains, cooking porridge (uncooked rice) (i.e., cooking porridge with uncooked rice), cooking porridge (leftover rice) (i.e., cooking porridge with leftover rice), etc. Understandably, the above description is only an embodiment of the cooking mode, and the cooking mode of the rice cooker is not limited to this, and it can be appropriately changed on this basis, such as changing one or more cooking modes, increasing or decreasing one or more cooking modes; the above cooking function database is pre-stored in the rice cooker, and the cooking function database includes at least one cooking function under a cooking mode. The cooking function is a function related to the water addition amount and the rice parameters under a specific cooking mode in the rice cooker, and the cooking function includes different typical rice variety functions under a certain cooking mode. The typical rice variety function includes the rice weight function of this rice variety under different rice weights. The rice parameters include the water absorption rate of the rice, the content of the rice, the ratio of the rice weight to the absorbed water, and the ratio of the absorbed water to the rice weight. In this step, a specific value of a certain rice parameter can be selected as the target. Generally, which rice parameter is selected as the target is set at the factory.

[0130] Obtain the target value y of the rice parameters 目 Specifically, it can include: if the rice cooker is used for the first time, the target value of the rice parameters preset by the manufacturer can be selected; if the rice cooker is not used for the first time, the default value is the target value y of the rice parameters selected during the previous cooking. 目， Secondly, the target value of the rice parameters preset by the manufacturer can be selected, or the target value of the rice parameters can be adjusted according to the taste of a certain kind of rice. After trying the rice with different target values of the rice parameters, the user can determine the target value of the rice parameters corresponding to the best taste of this rice variety under the cooking mode of the rice cooker.

[0131] Obtain the cooking mode and the target value y of the rice parameters 目It can be obtained in a manual input manner or a wireless manner. Obtaining in a manual input manner can include manually selecting or inputting a cooking mode and a target value y of rice parameters on the display operation panel of the rice cooker. 目 Obtaining in a wireless manner can include obtaining from the APP of the mobile terminal in a wireless communication manner. The user can select or input a cooking mode and a target value y of rice parameters in the APP of the mobile terminal. 目 Then the result is transmitted to the rice cooker.

[0132] S102: Add rice and obtain the rice weight m 米

[0133] In an embodiment of the present invention, the rice weight m 米 is the rice weight m added into the inner pot of the rice cooker. 米 Obtaining the rice weight m 米 can be any feasible method, including weighing the rice weight by a weighing device, inputting the rice weight by the user, etc. Inputting the rice weight by the user can include inputting the rice weight through the input interface of the rice cooker, inputting the rice weight by the mobile terminal through the corresponding APP, etc. After the user inputs the rice weight, it is also necessary to use a rice feeding mechanism (such as a measuring cylinder) to weigh an appropriate weight of rice and feed the rice into the pot.

[0134] S103: According to the rice weight m 米 and the cooking mode, select the rice weight function corresponding to the rice weight under the typical rice variety function selected from the cooking function database;

[0135] The above cooking function database is pre-stored in the rice cooker. The cooking function database includes at least one cooking function under a cooking mode. The cooking function is a function related to the water addition amount and rice parameters under a certain cooking mode set in the specific rice cooker, and the cooking function includes different typical rice variety functions under a certain cooking mode. For the selected typical rice variety function, if using this cooking mode for the first time, the typical rice variety function preset by the manufacturer can be selected, and then the optimal typical rice variety function suitable for the cooked rice variety can be selected through the calibration program after the cooking program ends; if not using this cooking mode for the first time, select the typical rice variety function used last time, or the optimal typical rice variety function suitable for this rice variety selected through the calibration program.

[0136] Since the rice weight functions corresponding to different rice weights are stored under the selected typical rice variety function, and the rice weight values corresponding to these functions are a series of discrete values, therefore, after obtaining the rice weight m 米 , it is necessary to consider the matching problem between the obtained rice weight m 米 and the rice weight functions in the database, that is, there is exactly a rice weight function corresponding to the rice weight under the selected cooking mode stored in the database, or there is no rice weight function exactly corresponding to the obtained rice weight under the corresponding cooking mode in the database.

[0137] In some embodiments of the present invention, if the influence of the temperature of the cooking object in the pot is not considered, in the rice cooking mode A of the rice cooker P, if Figure 5 there is exactly a corresponding rice weight function in the database shown in the selected typical rice variety function, the corresponding rice weight function is called; if there is no corresponding rice weight function in the selected typical rice variety function, the rice weight m obtained is called 米 adjacent (m i <m 米 <m i+1 ) two rice weights m i , m i+1 corresponding rice weight functions, and data processing is performed on them. According to the rice weight functions of the adjacent rice weights m i , m i+1 , the rice weight function of the obtained rice weight m 米 is obtained. In some embodiments of the present invention, if the temperature of the cooking object in the pot has a relatively large influence on the rice parameters calculated by the rice cooking function, it is necessary to first obtain the temperature information of the cooking object in the pot before calling the applicable rice weight function, and then combine the cooking condition parameters and the rice weight, in Figure 6 or a database similar to that shown in Figure 6 to call the applicable rice weight function.

[0138] In an embodiment of the present invention, taking the case where the influence of the temperature of the cooking object in the pot is not considered and the selected typical rice variety function L1 in the rice cooking mode A of the rice cooker P as an example, assume: m1 < m 米 <m2. Since there is no rice weight function when the rice weight is m 米 in the selected typical rice variety function L1, for the obtained rice weight m 米 , the rice weight functions of the two adjacent rice weights m1 and m2 are selected, which are respectively:

[0139] y PAL1m1 = f(x)…(9)

[0140] y PAL1m2 = f(x)…(10)

[0141] Then data processing is performed on these two rice weight functions. In an embodiment of the present invention, the weighted average method is used to obtain the rice weight function corresponding to the rice weight m 米 , which is:

[0142] y PAL1m米 = (m 米 - m1) / (m2 - m1)*y PAL1m2 + (m2 - m 米 ) / (m2 - m1)*y PAL1m1 …(11)

[0143] Understandably, the way of processing data for two rice weight functions is not limited to the weighted average method.

[0144] S104: Control the water addition amount of the rice cooker based on the called rice weight function;

[0145] In this step, when controlling the water addition amount of the rice cooker based on the called rice weight function, there are two implementation methods:

[0146] The first method includes:

[0147] S1041: Calculate the target water addition amount x based on the called rice weight function 目 , store and output it;

[0148] Since the rice weight m 米 and the target value y of the rice parameters 目 are known, the target water addition amount x can be calculated from formulas (9), (10) and (11) 目 , store the target water addition amount x 目 on the storage medium and output it; The output method of the target water addition amount x 目 can be a combination of one or several of the following ways: display on the display screen, voice output, electrical signal output, etc., and the presentation form can include a combination of one or several of numbers, texts, graphic symbols, etc.

[0149] S1042: Obtain the actual water addition amount x 实 , compare it with the target water addition amount x 目 , and control the water addition amount according to the comparison result; s

[0150] In an embodiment of the present invention, after water is added to the pot, the way to obtain the actual water addition amount x 实 includes weighing the weight x of the rice-water mixture using a weighing device 混 , and from the formula x 实 = x 混 - m 米 , calculate the actual water addition amount x 实 ; then compare it with the target water addition amount x 目 . In an embodiment of the present invention, the comparison method is to calculate the amount of water x 差 = x 目 - x 实 to calculate the amount of water x 差 that still needs to be added, and then output it. The amount of water x 差 that still needs to be added can be a combination of one or several of numbers, texts, graphic symbols, etc., and is output in a combination of one or several of the following ways: display on the display screen, voice output, electrical signal output, etc.; Control the water addition amount according to the output comparison result until the target water addition amount is reached.

[0151] The second method includes:

[0152] S1043: Based on the called rice weight function, calculate the parameter value of the cooked rice that the rice cooker can obtain according to the actual water addition amount, that is, the real-time value of the rice parameters;

[0153] S1044: Gradually adjust the water addition amount according to the difference between the parameter value of the cooked rice that the rice cooker can obtain and the target value of the rice parameters until the parameter value of the cooked rice that the rice cooker can obtain coincides with the target value of the rice parameters.

[0154] If the water addition amount of the rice cooker is controlled by the second method, the target value y of the rice parameters obtained in step S101 目 can be input into the controller or not. If the target value y of the rice parameters is not selected to be input 目 , then the user can keep the target value y of the rice parameters 目 in mind until the parameter value of the rice that can be obtained according to the actual water addition amount by the rice cooker coincides with the target value y of the rice parameters 目 . Then it can be considered that the water addition step has been completed and cooking can start.

[0155] S105: Obtain the start cooking information, execute the cooking program, and store the actual water addition amount x 实

[0156] S106: After cooking is completed, obtain the calibration start information, calibrate the selected typical rice variety function and update

[0157] If the customer needs, the calibration program can be started. In an embodiment of the present invention, the method for calibrating the selected typical rice variety function is as follows:

[0158] During a suitable time period after the cooking program ends and enters the warming stage (for example, during the 10th - 15th minute of warming), open the lid of the rice cooker;

[0159] After obtaining the calibration start information, obtain the rice weight m at this time point t , and compensate for the rice weight loss caused by the difference between the time point t for obtaining the rice weight and the predetermined time point T for weighing the rice weight to obtain the rice weight m at the predetermined time point T for weighing the rice weight T , which is recorded as the compensated actual rice weight, and store the compensated actual rice weight in the storage medium of the rice cooker. Since it is difficult to achieve weighing the rice weight exactly at the pre - set time point for weighing the rice weight (for example, at the 10th minute of warming) during actual use, due to the water loss during warming, there will be a difference in the rice weight obtained by weighing at different time points. Therefore, it is necessary to compensate for the rice weight loss caused by the difference between the weighing time t of the rice weight and the predetermined time point T for weighing the rice weight, and obtain the rice weight m at the predetermined time point T for weighing the rice weight according to the rice weight loss T, according to the actual weight of the cooked rice after compensation, use the rice parameter formula y = y 吸 =(m 饭 -m 米 ) / m 饭 to calculate the actual rice parameter value y r , such as Figure 4 the y in r point;

[0160] Use y r and all the typical rice variety functions L in the corresponding cooking mode of the corresponding rice cooker i to calculate the rice parameter value y i (i = 1~n) for comparison, calculate the difference between y i and y r , select the typical rice variety function with the smallest difference, and update it as the current typical rice variety function;

[0161] The program for verifying the selected typical rice variety function is not limited to the above method.

[0162] Second Embodiment

[0163] The First Type of Rice Cooker - Manual Rice and Water Adding Rice Cooker

[0164] Figure 7 Shown is a schematic diagram of a rice cooker 500 for implementing the control method of the present invention. According to different combinations of hardware structures, it can have several different variants. As Figure 7 shown, the rice cooker 500 of this embodiment includes: a rice cooker main body 10, inside which there is a pot 20 for receiving cooking materials such as rice and water; a heating part 30 for heating the pot 20; a weighing device 50 provided below the heating part 30, which has multiple legs passing through the heating part 30, and these legs are in contact with the pot 20 for providing support to the pot 20 and transmitting the force exerted by the pot 20, so that the weighing device 50 can weigh the pot 20 and / or the cooking materials in the pot 20; a temperature measuring device 40 is configured in a through hole opened in the middle of the heating part 30 and can measure the temperature of the pot 20. This temperature measuring device 40 can be a temperature sensor; a display operation panel 70 (see Figure 8) It is provided inside the rice cooker main body 10 or can also be provided inside the outer lid 60 for displaying various information; the outer lid 60 is provided on the upper part of the rice cooker main body 10 for opening or covering the upper opening of the pot 20; the controller 200 is electrically connected to the heating unit 30, the temperature measuring device 40, the weighing device 50, the storage medium 80 and the display operation panel 70, and is used to control the heating unit 30, the temperature measuring device 40, the weighing device 50, the storage medium 80 and the display operation panel 70 to perform corresponding operations to implement the programs involved in the control method of the present invention and the rice cooking program. The storage medium 80 can be one or more, and the rice cooking function database, the programs and data involved in implementing the control method of the present invention, and the programs for implementing rice cooking are pre-stored in the storage medium. The controller 200 cooks rice by implementing the control method of the present invention, and realizes that the user obtains stable rice that meets personal taste preferences by using the quantitative rice-water ratio control method.

[0165] The display operation panel 70

[0166] Figure 8 FIG. is a schematic diagram of the display operation panel 70. Depending on different combinations of hardware structures, it can have several different variants. Such as Figure 8 shown, in this embodiment, the display operation panel 70 has a display 71 and a plurality of buttons 72. The display operation panel 70 can be a touch panel or a non-touch panel. Various information such as the rice cooking mode, the typical rice variety function, the target values of the rice parameters, the rice weight, the target water addition amount, the difference between the actual water addition amount and the target water addition amount, the real-time values of the rice parameters, the historical values of the rice parameters, prompts, warnings, etc. can be displayed on the display 71, which will not be listed one by one here. By operating the plurality of buttons 72, operations such as rice cooking mode selection, typical rice variety function selection, rice weight confirmation, typical rice variety function verification, input of the target values of the rice parameters, zero clearing of the weighing device, one-key input, etc. can be performed, which will not be listed one by one here. One-key input includes combining the input functions of at least two or several parameters among the information such as the common rice cooking mode, the typical rice variety function, and the target values of the rice parameters on one button to realize one-key input of the common rice cooking mode, the common typical rice variety function, and the common target values of the rice parameters. It can be understood that one-key input can also include combining other required regular operations or data input during rice cooking on one button to realize one-key information acquisition or one-key operation.

[0167] The controller 200

[0168] Figure 9It is a structural block diagram of a controller and its related components. In different embodiments, the controller 200 can be connected to different components and equipped with different control programs. According to different control programs, the controller 200 can have different variants. In this embodiment, the controller 200 is connected to a heating unit 30, a temperature measuring device 40, a weighing device 50, a display operation panel 70, and a storage medium 80.

[0169] In this embodiment, the controller 200 provided in the rice cooker 500 is an electronic component having a processor that uses software to implement specified functions, capable of reading programs and data stored in the storage medium, and executing the functions corresponding to the programs; the processor is not limited to one or a single one. The programs and data stored in the storage medium can be updated. The controller 200 can have several different variants according to different combinations of hardware structures or software programs.

[0170] The controller 200 can control various operations of the rice cooker 500, including but not limited to controlling the display operation panel 70 to input and display information such as a cooking mode, a typical rice variety function, and a target value of rice parameters; controlling the weighing device 50 to weigh the cooking objects such as the pot 20 and / or the rice or the rice-water mixture in the pot 20 and calculate the weight of the rice or water; executing the corresponding program, calling function relationships from the storage medium, and / or performing calculations on data and outputting calculation results; and controlling the heating unit 30 and the temperature measuring device 40 to implement the cooking program; the controller 200 can update, manage, etc. the database, programs, and data in the storage medium in a wired or wireless manner.

[0171] Storage medium

[0172] In this embodiment, the storage medium is a storage medium that stores various information including but not limited to a cooking function database, programs and data related to implementing the control method of the present invention, and programs and data required to implement the functions of the rice cooker 500. The storage medium includes erasable and non-erasable storage media, and the storage medium is not limited to one or a single one.

[0173] Figure 10 It is a schematic diagram of the working process when cooking rice using the above rice cooker. As Figure 10 shown, the working process of the rice cooker in this embodiment includes:

[0174] S111, obtaining the target value y of the cooking mode and rice parameters 目

[0175] In some embodiments of the present invention, the cooking mode is obtained through the selection or input operation of multiple buttons 72 on the display operation panel 70; the cooking mode is a cooking program set in the rice cooker, including multiple modes such as standard cooking, fine cooking, cooking miscellaneous grains, cooking porridge (raw rice), cooking porridge (leftover rice), etc.; through the multiple buttons 72 on the display operation panel 70, the target value y of the rice parameters can be set. 目 When using the rice cooker for the first time, the rice parameter values preset by the manufacturer can be selected as the target values. After the first cooking, the target value y of the rice parameters can be adjusted according to the taste of the rice. 目 After trying the rice with different target values of rice parameters, finally, the target value of the rice parameters corresponding to the rice variety that obtains the rice meeting the personal taste preference under the selected cooking mode of the rice cooker is found.

[0176] When obtaining the target value y of the rice parameters 目 the controller 200 will judge whether the target value of the rice parameters exceeds the meaningful value under the selected cooking mode. For example, the meaningful water absorption rate of rice is between 50% - 65%, and the meaningful water absorption rate of porridge is between 75% - 95%. If it exceeds, a prompt or alarm will be given in one or several forms of combination such as numbers, words, graphics, etc. through the display 71 on the display operation panel 70; the ways of prompt and alarm include one or several combinations of ways such as display on the display screen, voice and / or light, and electrical signal output.

[0177] In some embodiments of the present invention, the ways of obtaining the cooking mode and the target value y of the rice parameters 目 also include through radio signals, voice or other well-known ways. In these cases, the rice cooker 500 should be equipped with corresponding devices and functions to implement this obtaining way.

[0178] In addition, the range of the meaningful water absorption rate of rice and porridge is not limited to the above range.

[0179] S112, Add rice and obtain the rice weight m 米 Confirm, store and output

[0180] In some embodiments of the present invention, the weight of the weighing device 50 including the pot 20 is set to zero through the multiple buttons 72 on the display operation panel 70. After the rice is added to the pot 20, the controller 200 controls the weighing device 50 to weigh the rice weight m in the pot 20 米 and judge the rice weight m 米Is it within the rice weight range of the rice cooker? If it exceeds the rice weight range, a prompt and alarm will be given in the form of numbers, words, graphics, etc. through the display 71 on the display operation panel 70; the prompt and alarm methods include one or a combination of several methods such as display, voice, sound, and light; if it does not exceed the rice weight range, confirm the rice weight m through the button on the display operation panel 72 米 , indicating the end of the rice adding program, and the controller 200 stores the rice weight m 米 to the storage medium and displays the rice weight m through the display 71 on the display operation panel 70

[0181] In some embodiments of the present invention, the method for obtaining the rice weight m 米 also includes obtaining information through wireless electrical signals or voice. In these cases, the rice cooker 500 should be equipped with corresponding devices and functions to implement the corresponding obtaining methods. In addition, corresponding devices and functions should also be added for the rice adding program to implement

[0182] S113, according to the rice weight m 米 and the cooking mode, call the applicable rice weight function relationship

[0183] In some embodiments of the present invention, combining the cooking condition parameters obtained in step S111 and the rice weight m obtained in step S112 米 , the controller 200 calls the applicable rice weight function relationship from the database in the storage medium under the selected typical rice variety function and performs data processing

[0184] For the selected typical rice variety function, if this cooking mode is used for the first time, the typical rice variety function preset by the manufacturer can be selected, and then the optimal typical rice variety function suitable for the cooked rice variety can be selected through the verification program after the cooking program ends; if this cooking mode is not used for the first time, select the typical rice variety function used last time, or the optimal typical rice variety function suitable for this rice variety selected through the verification program

[0185] In some embodiments of the present invention, if the influence of the temperature of the cooked food in the pot is not considered, in the cooking mode A of the rice cooker P, if Figure 5 there is just a corresponding rice weight function in the database shown and the selected typical rice variety function, call the corresponding rice weight function; if there is no corresponding rice weight function in the corresponding typical rice variety function, call the two rice weights m 米 adjacent to the rice weight m i 、m i+1The rice weight function. In some embodiments of the present invention, if the temperature of the cooking material in the pot has a relatively large influence on the rice parameters calculated by the functional relationship, before calling the applicable rice weight functional relationship, the controller 200 first controls the temperature measuring device 40 to detect the temperature of the pot 20, and then combines the cooking mode obtained in step S111 and the rice weight m obtained in step S112 米 , in Figure 6 the database shown or a similar database, call the applicable rice weight functional relationship.

[0186] In this example, without considering the influence of the temperature of the cooking material in the pot, in the cooking mode A of the rice cooker P, taking the typical rice variety function L1( Figure 5 ) as an example:

[0187] Assume: m1 < m 米 < m2, then call formulas (9) and (10),

[0188] y PAL1m1 = f(x) and y PAL1m2 = f(x)

[0189] Perform data processing on these two rice weight functions. In this embodiment, the weighted average method is used to obtain formula (11):

[0190] y m米 = (m 米 - m1) / (m2 - m1)*y PAL1m2 + (m2 - m 米 ) / (m2 - m1)*y PAL1m1

[0191] It should be noted that the method of performing data processing on the two rice weight functions is not limited to the weighted average method.

[0192] S114, based on the called rice weight functional relationship, calculate the target water addition amount x 目 and output it;

[0193] Since the rice weight m 米 and the target value y of the rice parameters are known 目 , then the target water addition amount x can be calculated from formulas (9), (10) and (11) 目 , store the target water addition amount x 目 on the storage medium and output it; the output mode of the target water addition amount x 目 can be one or a combination of several modes such as being displayed on the display screen, voice output, electrical signal output, etc., and the manifestation forms can include one or a combination of several forms such as numbers, characters, graphic symbols, etc.

[0194] S115, add water, obtain the actual water addition amount x 实 , and compare it with the target water addition amount x目 Compare and control the water addition amount according to the comparison result

[0195] In some embodiments of the present invention, after water is added into the pot 20, the controller 200 controls the weighing device 50 to weigh the weight x of the rice-water mixture in the pot 20 混 , and determine the weight x of the rice-water mixture 混 Whether it is within the range of the rice-water mixture of the rice cooker. If it exceeds the range of the rice-water mixture of the rice cooker, a prompt and alarm will be given in one or several forms of combination such as numbers, texts, graphics, etc. through the display 71 on the display operation panel 70. The prompt and alarm methods include one or several combinations of methods such as display, voice, sound, and light; if it does not exceed the range of the rice-water mixture of the rice cooker, the controller 200 passes the formula x 实 =x 混 -m 米 Calculate the actual water addition amount x 实 ; and compare it with the target water addition amount x calculated in step S114 目 . In some embodiments of the present invention, the comparison method is that the controller 200 passes the formula x 差 =x 目 -x 实 Calculate the remaining water amount x to be added 差 , and then output it. The operator manually controls the water addition amount x 实 until the target water addition amount x 目 is reached. Among them, the way to output the remaining water amount x 差 includes one or several combinations of forms such as numbers, texts, graphic symbols, etc., which are displayed by the display 71, and can also include output in the form of voice broadcast.

[0196] S116, Obtain the start-cooking information, implement the cooking program, and store the actual water addition amount x 实

[0197] In some embodiments of the present invention, through the button on the display operation panel 70, the controller 200 obtains the start-cooking information, controls the heating part 30 and the temperature measuring device 40 to implement the cooking program, and stores the actual water addition amount x 实 into the storage medium.

[0198] S117, Open the upper cover of the rice cooker within a suitable time period after the cooking program ends, obtain the verification start information and the weight of the cooked rice and store them

[0199] In the present invention, when constructing the rice weight function, considering that during the heat preservation stage, due to the evaporation of water vapor, the weight of the cooked rice continuously decreases (for example, in the cooking mode A of the rice cooker P, the weight loss of the cooked rice is about 3 g during the two consecutive 10-minute heat preservation stages after the cooking program ends). To maintain data consistency, the time point for obtaining the rice weight is fixed at a certain time point T (such as the 10th minute of the heat preservation stage) after the cooking program ends and then heat preservation. Therefore, during the verification stage, the time point for obtaining the rice weight should also be consistent. However, the function is constructed under experimental conditions, and it is relatively easy to obtain the rice weight at a fixed time point. In actual life, it is relatively difficult to obtain the rice weight at a fixed time point during verification. Therefore, a corresponding modification is made. During verification, within a suitable time period after the cooking program ends, for example, within the 10th - 15th minute of the heat preservation stage, the upper cover 60 of the rice cooker is opened. After the controller 200 obtains the verification start information through the button on the display operation panel 70, it controls the weighing device 50 to weigh the rice in the pot 20, and compensates for the rice weight loss caused by the difference between the actual time point t for obtaining the rice weight and the preset time point T for weighing the rice when constructing the function relationship, so as to obtain the rice weight m at the preset weighing time point T after compensation. T ; Store the compensated rice weight m T in the storage medium; if the appropriate time period is exceeded, verification cannot be performed.

[0200] S118, calculate the actual rice parameter value y r , and compare it with the rice parameter values y i (i = 1 - n) calculated by the functions of each typical rice variety in this cooking mode, and select the typical rice variety function with the smallest difference to update the current typical rice variety function.

[0201] In some embodiments of the present invention, the verification program includes: the controller 200 obtains the compensated rice weight m T from the storage medium, and calculates y 吸 according to the rice parameter formula y = y 饭 = (m 米 - m 饭 ) / m r . As shown in Figure 4 the Y r point; then accordingly calculate the rice water absorption rate y i (i = 1 - n) using all the typical rice variety functions constructed in the cooking mode A, and compare it with y r , calculate Min(|y r - y [[ID=3 =7]] i |), and select the typical rice variety function with the smallest difference to update the current typical rice variety function.

[0202] It can be understood that the verification program is not limited to the above method.

[0203] The second type of manual rice and water adding rice cooker

[0204] The difference between the second type of manual rice and water adding rice cooker and the first type lies in the cooking function database stored in the storage medium of the controller 200 and the control program in the rice cooker. The cooking function database stored in the second type of manual rice and water adding rice cooker is a cooking function database established considering the influence of the temperature of the cooked food in the pot, such as Figure 6 the database shown or a similar database. In this embodiment, it is Figure 6 the database shown. The working process of the rice cooker executed by the control program in the rice cooker is as described below.

[0205] Figure 11 is a schematic diagram of the working process when cooking rice using the above rice cooker. As Figure 11 shown, the working process of the rice cooker in this embodiment includes:

[0206] S121, obtaining the cooking mode

[0207] S122, adding rice, obtaining the rice weight m 米 , outputting, confirming, storing, and outputting the historical value y of the set rice parameters h

[0208] In this embodiment, after the rice adding process is completed, the controller 200 outputs the rice weight m 米 and stores the rice weight m after obtaining the rice weight confirmation information 米 , and then controls the display 71 to display the historical value y of the set rice parameters h , and displaying through the display 71 is an embodiment of outputting the historical value y of the set rice parameters h ;

[0209] S123, adding water, obtaining the actual water addition amount x 实 , and outputting

[0210] During the water adding process, the controller 200 obtains the actual water addition amount x in real time 实 , and displays the actual water addition amount x through the display 71 on the display operation panel 70 实 , and displaying through the display 71 is an embodiment of outputting the actual water addition amount x 实 ;

[0211] S124, obtaining the temperature of the cooked food, and according to the cooking mode and the rice weight m 米 , calling the applicable rice weight function, and combining with the actual water addition amount x 实, calculate the parameter values of the cooked rice that the rice cooker can obtain and output. Since the temperature of the pot 20 is approximately the same as the temperature of the cooked food in the pot 20, in this embodiment, the temperature of the pot 20 is used instead of the temperature of the cooked food in the pot 20. Obtaining the temperature of the cooked food includes: the controller 200 controls the temperature measuring device 40 to detect the temperature of the pot 20 to obtain the temperature of the cooked food in the pot 20. Detecting the temperature of the pot 20 by the temperature measuring device 40 is an embodiment of detecting the temperature of the cooked food in the pot 20.

[0212] In this embodiment, according to the temperature of the pot 20 obtained by the controller 200, the cooking mode obtained in step S121, and the rice weight m obtained in step S122 米 , the controller 200 calls the applicable rice weight function under the selected typical rice variety function in the temperature range from the cooking function database of the storage medium and combines the actual water addition amount x 实 , and calculates the parameter values of the cooked rice that the rice cooker can obtain.

[0213] For the selected typical rice variety function in this temperature range, if this cooking mode is used for the first time, the typical rice variety function preset by the manufacturer can be selected, and then the optimal typical rice variety function suitable for the rice variety being cooked can be selected through the verification program after the cooking program ends; if this cooking mode is not used for the first time, the typical rice variety function used last time, or the optimal typical rice variety function suitable for this rice variety selected through the verification program, is selected.

[0214] In some embodiments of the present invention, if the cooking function database stored in the rice cooker is a cooking function database established without considering the influence of the temperature of the cooked food in the pot, the step of obtaining the temperature of the cooked food in the pot can be omitted. According to the cooking mode obtained in step S121 and the rice weight m obtained in step S122 米 , the controller 200 calls the applicable rice weight function relationship from the cooking function database of the storage medium and combines the actual water addition amount x 实 , and calculates the parameter values of the cooked rice that the rice cooker can obtain and outputs them.

[0215] In this embodiment, if the temperature T of the cooked food in the pot i ≥T1, the cooking mode of the rice cooker P is B, and the selected typical rice variety function is L1. When calling the applicable rice weight function, assuming m1 < m 米 < m2, then the rice weight functions of adjacent rice weights m1 and m2 are selected, which are respectively:

[0216] y PBT1L1m1 = f(x)…(12)

[0217] y PBT1L1m2 = f(x)…(13)

[0218] Data processing is performed on these two rice weight functions. In this embodiment, the weighted average method is adopted:

[0219] y m米 = y 吸m米 = (m 米 - m1) / (m2 - m1) * y PBT1L1m2 + (m2 - m 米 ) / (m2 - m1) *

[0220] y PBT1L1m1 …(14)

[0221] Since the rice weight m 米 and the actual water addition amount x 实 are known, the parameter values of the cooked rice that the rice cooker can obtain are calculated according to formulas (12), (13), and (14) and output; the output method of the parameter values of the cooked rice that the rice cooker can obtain includes displaying in one or a combination of forms such as numbers, texts, and graphics on the display 71 of the display operation panel 70.

[0222] In addition, the method of data processing for the two functional relationships is not limited to the weighted average method.

[0223] S125, confirm whether the parameter values of the cooked rice that the rice cooker can obtain are satisfactory

[0224] In this embodiment, the user combines the historical rice parameter value y h output in step S122 with the parameter values of the cooked rice that the rice cooker can obtain output, and determines whether it is the value they want. If not satisfied, adjust the water addition amount x 实 , until the required rice parameter values are obtained; in some embodiments of the present invention, it is also possible not to use the historical rice parameter value y h as the adjustment target, but to use a certain rice parameter value that the user desires as the target. In this way, the displayed historical rice parameter value y h can only be used as a reference for determining the adjustment target, or the historical rice parameter value y h is not displayed, and the water addition amount is directly adjusted with a certain rice parameter value determined in the user's mind as the target.

[0225] S126, obtain the start cooking information, implement the cooking program, and store the actual water addition amount x 实 and the parameter values of the cooked rice that the rice cooker can obtain as y h

[0226] After the controller 200 obtains the start cooking information, it controls the heating unit 30 and the temperature measuring device 40 to implement the cooking program, and at the same time, the water addition amount x 实Use the parameter value of the cooked rice that can be obtained by the rice cooker obtained in step S124 as the historical rice parameter value y h Store it in the storage medium.

[0227] S127. Open the upper cover of the rice cooker within a suitable time period after the cooking program ends, obtain the verification start information, obtain the rice weight information and store it

[0228] S128. Calculate the actually obtained rice parameter value, and compare it with the rice parameter value y calculated by each typical rice variety function in this cooking mode i (i = 1 - n), select the typical rice variety function corresponding to the smallest difference, and update it as the current typical rice variety function.

[0229] The third embodiment

[0230] The second rice cooker - a timing automatic quantitative water adding rice cooker

[0231] As Figure 7 And Figure 9 As shown, the difference between the second rice cooker and the first rice cooker is that, compared with the first rice cooker, the second rice cooker is equipped with a timing device 90 and a water supply system 100. The water supply system 100 includes a container 120 for holding water, a water supply mechanism 130, and a water pipe 140; the water supply mechanism 130 includes a flow sensor (not shown), and a water pipe 140 is connected between the container 120 and the water outlet on the outer cover 60; the water supply mechanism 130 is electrically connected to the controller 200, and under the control of the controller 200, water can be supplied to the pot 20 of the rice cooker at a fixed time and in a fixed quantity. By supplying water at a fixed time and in a fixed quantity, it avoids the problem that in the general timing cooking technology, due to the prior mixing of rice and water, the rice is soaked in water for too long, which affects the taste; at the same time, cooking with a quantified rice-water ratio control method enables users to obtain stable rice that meets their personal taste preferences.

[0232] Display operation panel

[0233] In this embodiment, the display operation panel of the rice cooker is different from that of the first rice cooker. In the display operation panel 70 of the rice cooker in this embodiment, a timing button (not shown) is added among the multiple buttons 72, and the display function of the display 71 is enhanced with the display of timing information.

[0234] Controller 200

[0235] In this embodiment, the cooking program built into the controller of the rice cooker is different from that of the first rice cooker. The controller 200 in this embodiment has an added timing function, and the controller 200 can control the water supply system 10 to supply water to the pot 20 of the rice cooker at a fixed time and in a fixed quantity according to the set time.

[0236] As Figure 12As shown, the control method of the rice cooker in this embodiment includes the following steps:

[0237] S131, obtain the target value y of the cooking mode, rice parameters 目 and timing information

[0238] In this embodiment, the controller 200 obtains the timing time through the buttons on the display operation panel 70, and this timing time is the time to start implementing the cooking program. In some embodiments of the present invention, this timing time can also be defined as the time to complete cooking. In this case, the time to start implementing the cooking program is adjusted accordingly according to the duration required by the cooking mode.

[0239] In some embodiments of the present invention, the manner of obtaining the cooking mode and the target value y of the rice parameters 目 and timing information also includes obtaining information through radio signals, voice, or other well-known methods. In these cases, the rice cooker 500 should be equipped with corresponding devices and functions to implement the corresponding obtaining methods.

[0240] S132, add rice, obtain the rice weight m 米 and store

[0241] After the rice adding program ends, the controller 200 stores the rice weight m 米 to the storage medium;

[0242] In some embodiments of the present invention, the manner of obtaining the rice weight m 米 also includes obtaining information through wireless electrical signals or voice. In these cases, the rice cooker 500 should be equipped with corresponding devices and functions to implement the corresponding obtaining methods.

[0243] S133, go into sleep

[0244] After the upper cover 60 of the rice cooker is closed, control the rice cooker 500 to be in a sleep state;

[0245] S134, determine whether the set timing time is reached

[0246] The controller 200 determines whether the set timing time is reached. If the timing time has not arrived, the rice cooker continues to sleep; if the set timing time has been reached, end the sleep state of the rice cooker 500;

[0247] S135, combine the cooking mode and the rice weight, call the applicable rice weight function, and calculate the target water addition amount x 目 , store and output;

[0248] S136, control the water supply mechanism to supply water

[0249] In this embodiment, the controller 200 controls the water supply system 10 according to the target water addition amount x obtained in step S135目 Quantitative water supply;

[0250] S137. After the water supply ends, execute the rice cooking program

[0251] The fourth embodiment

[0252] The third rice cooker—a rice cooker for visually impaired users

[0253] As Figure 8 shown, the difference between the rice cooker of this embodiment and the rice cooker of the second embodiment is that, compared with the rice cooker of the second embodiment, the rice cooker of this embodiment is increased with a device for interacting with visually impaired users, including a voice broadcast device 73. For the convenience of visually impaired users, in this embodiment, the multiple buttons 72 on the display operation panel 70 are replaced with buttons for interacting with visually impaired users, including but not limited to buttons with Braille markings or tactile graphics. The voice broadcast device 73 can be set near the display operation panel 70 or can be set elsewhere. The controller 200 is increased with a function for interacting with visually impaired users. The controller implements the programs and information involved in the control method of this embodiment through friendly interaction with visually impaired users. By implementing the control method of this embodiment, visually impaired users can control the water addition amount and execute rice cooking with a quantified rice-water ratio method like normal people, so as to obtain stable rice that meets personal taste preferences.

[0254] In each link of implementing the working process of the above-mentioned rice cooker, the controller 200 controls the voice broadcast device 73 to broadcast each program and each acquired and output information content by voice, while the visually impaired user inputs information through the button 72. The working process of the rice cooker of this embodiment includes:

[0255] S141. Obtain the rice cooking mode and the target value y of the set rice parameters 目

[0256] In this embodiment, an interaction method between the rice cooker and visually impaired users is as follows:

[0257] The voice broadcast device 73 of the rice cooker broadcasts: Please select the rice cooking mode through the button 72 on the display operation panel 70;

[0258] The user selects the required rice cooking mode through the button 72 on the display operation panel 70. For example, for rice cooking mode A, when the user operates the button, the voice broadcast device 73 of the rice cooker will broadcast the content under the button;

[0259] The voice broadcast device 73 of the rice cooker broadcasts: You have selected rice cooking mode A. Next, please set the target value of the rice parameters. The target value of the rice parameters last time was k%;

[0260] The user sets the target value k% of the previous rice parameters as the new target value or selects other values through the button 72 on the display operation panel 70. When the user operates the button, the voice broadcast device 73 of the rice cooker will broadcast the content under the button.

[0261] The voice broadcast device 73 of the rice cooker broadcasts: You have set the target value of the rice parameters to k%, and please add rice in the next step.

[0262] S142, Add rice and obtain the rice weight m 米 , Confirm, store and output

[0263] The user adds rice into the inner pot of the rice cooker.

[0264] During the rice adding process, the voice broadcast device 73 of the rice cooker broadcasts: You have added m 米 grams of rice. Please confirm the rice weight.

[0265] If the user believes that the rice weight has reached the expected value, the user confirms the rice weight m through the button 72 on the display operation panel 70. 米；

[0266] If the user believes that the rice weight has not reached the expected value, continue to add rice until the rice weight m 米 reaches the expected value, and then confirm the rice weight m 米 ;

[0267] The voice broadcast device 73 of the rice cooker broadcasts: You have confirmed the rice weight m 米 , and the next step is to...

[0268] The following steps are similar to those in other embodiments, except that the steps involved in the operation process need to be broadcast through the voice broadcast device 73, which will not be elaborated here.

[0269] The above-mentioned embodiments only describe one interaction method between the rice cooker and visually impaired users.

[0270] In some embodiments of the present invention, in addition to obtaining information through the button 72, the controller 200 can also obtain information through voice, radio signals, or other well-known methods. In these cases, the rice cooker 500 should be equipped with corresponding devices and functions to implement.

[0271] The Fifth Embodiment

[0272] The Fourth Type of Rice Cooker - for Visually Impaired Users + Timed and Quantified Water-Adding Rice Cooker

[0273] The rice cooker of this embodiment is a combination of the rice cooker of the third embodiment and the rice cooker of the fourth embodiment. The controller implements the program and information involved in the control method of the present invention through friendly interaction with visually impaired users, enabling visually impaired users to use the timing and quantitative water supply function of the rice cooker and implement the rice cooking program in the same way as ordinary people. The specific control method can refer to the corresponding control methods of the third embodiment and the fourth embodiment. To avoid redundancy, it will not be elaborated here.

[0274] So far, those skilled in the art should recognize that although the exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A method for constructing a cooking function database, characterized in that, It includes: Construct a rice cooking function, where the rice cooking function includes a function related to the water addition amount and rice parameters in a certain rice cooking mode set in a specific rice cooker; Construct a rice cooking function database for the rice cooker according to the rice cooking function.

2. The method for constructing a rice cooking function database according to claim 1, wherein: The rice parameters include one of the rice water absorption rate, the content of rice, the ratio of rice weight to absorbed water, and the ratio of absorbed water to rice weight. The rice cooking function includes at least one of a rice variety function in a rice cooking mode considering the influence of the difference in water loss during the rice cooking process of a specific rice cooker on the taste of rice or porridge, a function of water addition amount and rice parameters in a rice cooking mode without considering the influence of the difference in water loss during the rice cooking process of a specific rice cooker on the taste of rice or porridge, and a function of water addition amount and rice parameters in the mode of cooking porridge with leftover rice in a specific rice cooker.

3. The method for constructing a rice cooking function database according to claim 2, wherein: The construction of the rice variety function in a rice cooking mode considering the influence of the difference in water loss during the rice cooking process of a specific rice cooker on the taste of rice or porridge includes: Construct a rice weight function of a certain rice variety at a certain rice weight in a certain rice cooking mode set in a specific rice cooker; Combine the rice weight functions of this rice variety at different rice weights to construct a rice variety function of this rice variety in a certain rice cooking mode set in a specific rice cooker.

4. The method for constructing a rice cooking function database according to claim 3, wherein: It also includes: Select typical rice varieties; Construct a typical rice variety function in a certain rice cooking mode set in a specific rice cooker; Combine multiple typical rice variety functions to construct a set of typical rice variety functions in this rice cooking mode set in a specific rice cooker, and this set of typical rice variety functions constitutes the rice cooking function in this rice cooking mode set in a specific rice cooker.

5. The method for constructing a rice cooking function database according to claim 2, wherein: The function of the water addition amount and the rice parameters in the cooking mode that does not consider the influence of the difference in the water loss during the cooking process of a specific rice cooker on the taste of the rice or porridge is: y = (x - C) / (m 米 + x - C), where y is the rice parameter, x is the water addition amount, C is a constant preset to represent the water loss amount, and m 米 is the weight of the rice.

6. The method for constructing a rice cooking function database according to claim 2, characterized in that: The function of the water addition amount and the rice parameters in the mode of cooking porridge with leftover rice for a specific rice cooker is y=(x - C) / (m 剩饭 *(1 - C1)+x - C), where y is the rice parameter, x is the water addition amount, C is a constant representing the preset water loss amount, m 米 is the weight of the cooked rice, and C1 is the preset water absorption rate of the leftover rice. 剩饭 ​ 7. The method for constructing a rice cooking function database according to claim 3, wherein: The construction of the rice variety function in a rice cooking mode considering the influence of the difference in water loss during the rice cooking process of a specific rice cooker on the taste of rice or porridge also includes: Obtain the room temperature; Compare the room temperature with a preset temperature range, and construct a rice variety function at a certain room temperature within the temperature range where the room temperature is located.

8. The method for constructing a rice cooking function database according to claim 3, wherein: The construction of the rice weight function includes: At a certain room temperature, take rice with a weight of m of a certain rice variety 米 of rice; Add water with a water amount of x1, and cook rice in a certain rice cooking mode of a specific rice cooker; Weigh the rice after the cooking program ends to obtain the weight m of the rice 饭 ; Calculate the corresponding rice parameter value y1 according to a calculation formula of a certain rice parameter, and thus obtain a set of data of the first group of rice parameter values and water addition amounts (y1, x1); Take rice of the same variety and with the same rice weight m 米 and take the water addition amounts at appropriate intervals. Repeat the above steps of adding water, weighing, and calculating to obtain multiple sets of data (y2, x2), …… (y n , x n ); Process the obtained multiple groups of data to obtain the functional relationship y 米 between the water addition amount and the rice parameters when the rice weight is m under a certain room temperature and a certain cooking mode of a specific rice cooker m米 = f(x).

9. A rice cooker control method, characterized in that, It includes: Obtain the cooking condition parameters; Obtain the target value of the rice parameters; Obtain the rice weight; Call the rice weight function corresponding to the rice weight under the corresponding cooking conditions from the pre-stored rice cooking function database according to the cooking condition parameters and the rice weight. The rice weight function reflects the functional relationship between the water addition amount and the rice parameters under the corresponding rice weight; Control the water addition amount of the rice cooker based on the called rice weight function, so that the rice cooker can obtain rice with the target value of the rice parameters.

10. The rice cooker control method according to claim 9, wherein: The cooking condition parameters include the rice cooking mode, and the rice parameter is one of the rice water absorption rate, the content of rice, the ratio of rice weight to absorbed water, and the ratio of absorbed water to rice weight.

11. The rice cooker control method according to claim 10, wherein: The rice cooking mode includes one or more of standard cooking, fine cooking, cooking miscellaneous grains, cooking porridge with raw rice, and cooking porridge with leftover rice.

12. The rice cooker control method according to claim 9, characterized in that: The rice cooking function database includes rice cooking functions under different rice cooking modes. The rice cooking functions under at least one rice cooking mode include a set of typical rice variety functions in this rice cooking mode. Each typical rice variety function in the set of typical rice variety functions includes a function of the water addition amount and the rice parameters of this rice variety at different rice weights.

13. The rice cooker control method according to claim 12, characterized in that: The cooking functions under different cooking modes include functions of the water addition amount and rice parameters in the cooking mode that does not consider the difference in water loss during the cooking process of a specific rice cooker and its impact on the taste of rice or porridge.

14. The rice cooker control method according to claim 13, characterized in that: The cooking mode that does not consider the difference in water loss during the cooking process of a specific rice cooker and its impact on the taste of rice or porridge is at least one of the raw rice porridge cooking mode and the rice cooking mode.

15. The rice cooker control method according to claim 12, characterized in that: The cooking functions under different cooking modes include functions of the water addition amount and rice parameters in the leftover rice porridge cooking mode.

16. The rice cooker control method according to claim 9, characterized in that: Controlling the water addition amount of the rice cooker based on the called rice weight function so that the rice cooker can obtain rice with the target value of rice parameters includes: Based on the called rice weight function, calculating the target water addition amount according to the target value of the rice parameters; Adding water according to the difference between the target water addition amount and the actual water addition amount so that the parameter value of the rice obtained by the rice cooker coincides with the target value of the rice parameters.

17. The rice cooker control method according to claim 9, characterized in that: Controlling the water addition amount of the rice cooker based on the called rice weight function so that the rice cooker can obtain rice with the target value of rice parameters includes: Based on the called rice weight function, calculating the parameter value of the rice that the rice cooker can obtain according to the real-time water addition amount; Adjusting the water addition amount according to the difference between the parameter value of the rice that the rice cooker can obtain and the target value of the rice parameters until the parameter value of the rice that the rice cooker can obtain coincides with the target value of the rice parameters.

18. The rice cooker control method according to claim 12, wherein: It further includes a verification step, and the verification step includes: Obtaining verification start information; Obtaining the actual cooked rice weight; Based on the rice weight function, calculating the actual rice parameter value according to the actual cooked rice weight; Comparing the actual rice parameter value with the rice parameter values obtained from multiple typical rice variety functions under the same cooking mode; Selecting the typical rice variety function corresponding to the smallest difference to replace the currently selected typical rice variety function.

19. A storage medium stores a program, characterized in that, When the program is executed by the processor, the processor is configured to execute the rice cooker control method according to any one of claims 9 to 18.

20. A rice cooker, characterized in that, It includes: A rice cooker main body, inside which there is a pot for containing the food to be cooked; A heating part for heating the pot; A weighing device provided on the weighing pot and / or the food to be cooked in the pot; A display operation panel for information input and / or information output; A controller for implementing the programs and cooking programs involved in the rice cooker control method according to any one of claims 9 to 18.

21. The rice cooker according to claim 20, wherein: It further includes a timing device and a water supply system, and the controller is configured to control the water supply system to supply water to the pot of the rice cooker at a fixed time and in a fixed amount according to the fixed time set by the timing device and the target water addition amount calculated by the rice cooker control method.

22. The rice cooker according to claim 20, characterized in that: It further includes a device for interacting with visually impaired users, and the controller is configured to implement the programs and information involved in the rice cooker control method through friendly interaction with visually impaired users.

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