JP2871419B2 - rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker for judging the amount of rice and water to be cooked at the time of cooking rice, judging a cooking menu and automatically setting the ratio, and a ratio between the amount of rice and the amount of water different from the standard. The present invention relates to a rice cooker that informs and confirms a user at the time.

[0002]

2. Description of the Related Art In a conventional so-called microcomputer rice cooker, when cooking other than ordinary white rice such as porridge and brown rice, the user sets a menu key by himself and starts cooking. . Therefore, even if the user puts the water in the wrong amount, the rice is cooked as set.

[0003]

However, there has been a problem that the menu is not set when cooking porridge or the like other than white rice cooked rice, or cooking fails if the menu is set incorrectly. In addition, when cooking white rice, there is a case where one cup of water is mistakenly measured and in such a case, there is a problem that cooking fails.

Accordingly, the present invention is intended to solve such a conventional problem, and comprises a pre-cooked rice / water amount determining means for determining a rice amount and a water amount during a pre-cooking process. It is a first object of the present invention to provide a rice cooker that automatically determines a menu from the menu and performs cooking.

Further, a fuzzy inference device is provided as a means for judging pre-cooked rice / water quantity, which inputs the measured value of the weight measuring means, the rate of temperature rise by the temperature detecting element, and the room temperature by the room temperature detecting means. It is a second object of the present invention to provide a rice cooker for determining the amount and the amount of water.

Next, as a means for judging pre-cooked rice / water quantity, there is provided a fuzzy inference device which inputs the measured value of the weight measuring means, the lid temperature rise rate by the lid temperature detecting means, and the room temperature by the room temperature detecting means. It is a third object of the present invention to provide a rice cooker that accurately determines the amount of rice and the amount of water from a lid temperature.

[0007] Further, a power measuring means for measuring the power used during cooking is provided, and as a means for judging pre-cooked rice / water quantity, a measured value of the weight measuring means, a detected value of the power measuring means and a room temperature by the room temperature detecting means are inputted. It is a fourth object of the present invention to provide a rice cooker having a fuzzy inference device for determining the amount of rice and the amount of water during pre-cooking regardless of the water temperature.

A fifth object of the present invention is to provide a rice cooker which inputs a rice amount and a water amount by means of a pre-cooked rice / water amount determination means and informs a user when the water amount is different from a standard amount of white rice cooking. It is assumed that.

[0009]

In order to achieve the first object, the present invention provides a heating means for heating a pot disposed on a rice cooker main body, and a control means for controlling an energization ratio of the heating means. A temperature detecting element for detecting the temperature of the pan, a room temperature detecting means for detecting the room temperature, a weight measuring means for measuring the weight of the object to be cooked in the pan, the temperature detecting element during the pre-cooking process, Pre-cooked rice / water amount determination means for determining the rice amount and water amount based on the outputs of the room temperature detection means and the weight measurement means, and a rice cooking menu with the rice amount and water amount by the pre-cooked rice / water amount determination means as inputs. Menu determining means for judging, wherein the control means reads a cooking process from the cooking process storage device storing the cooking process for each of the cooked rice menus according to the determined cooked menu, and follows the read cooking process. It is an cooker for controlling said heating means.

In order to achieve the second object, the present invention provides, as a means for judging pre-cooked rice / water quantity, a measured value of a weight measuring means, a temperature rise rate by a temperature detecting element, and a room temperature by a room temperature detecting means. And a rice cooker provided with a fuzzy inference device.

Next, in order to achieve the third object, the present invention comprises a lid temperature measuring means for measuring the temperature of the lid, wherein the measured value of the weight measuring means and the lid are used as means for judging pre-cooked rice / water quantity. The rice cooker is provided with a fuzzy inference device that inputs the lid temperature rise rate by the temperature measuring means and the room temperature by the room temperature detecting means.

In order to achieve the fourth object, the present invention further comprises a power measuring means for measuring the power used during cooking, and as a means for judging the pre-cooked rice / water amount, the measured value of the weight measuring means and The rice cooker is provided with a fuzzy inference device that inputs the detected value of the power measuring means and the room temperature detected by the room temperature detecting means.

[0013] In order to achieve the fifth object, the present invention provides a notifying means for notifying a water amount abnormality when the water amount is different from a predetermined amount by inputting the rice amount and the water amount by the pre-cooked rice / water amount determining means. It is a rice cooker provided with.

[0014]

The operation of the first means is as follows. That is, the weight measuring means measures the combined weight of rice and water. In the pre-cooking process after the start of cooking, the pre-cooked rice / water amount determining means determines the rice amount and the water amount, and then the menu determining means determines the cooking menu from the rice amount and the water amount. Further, the control means, according to the cooking process stored in the cooking process storage means,
The cooking according to the determined menu is performed. That is, the present invention provides a rice cooker that determines a menu based on the amount of rice and the amount of water and automatically sets and cooks.

The operation of the second means is as follows. That is, pre-cooked rice in the heating process at the beginning of pre-cooking
The water amount determining means determines the amount of rice and the amount of water from the weight, the rate of temperature rise, and the room temperature. This is because the total heat load of the rice and water can be determined from the temperature rise rate and the room temperature, and from the difference between the heat capacities of the rice and water, the rice amount and the water amount can be estimated from the total weight and the total heat load. Accordingly, an object of the present invention is to provide a rice cooker capable of determining the amount of rice and the amount of water in the early stage of pre-cooking.

The operation of the third means is as follows. That is, in the pre-cooking process, the pre-cooked rice / water amount determining means determines the rice amount and the water amount from the weight, the lid temperature rise rate, and the room temperature. Because the total heat load of rice and water can be determined from the lid temperature rise rate and the room temperature, and from the difference in heat capacity between rice and water, the amount of rice and water can be estimated from the total weight and total heat load. . The lid is indirectly heated by a rise in the temperature of the object heated during rice cooking. Therefore, the measurement accuracy of the heat load in the pre-cooking process is good. Accordingly, it is an object of the present invention to provide a rice cooker capable of accurately determining the amount of rice and the amount of water during a pre-cooking process.

The operation of the fourth means is as follows. That is, during the period in which the predetermined temperature is maintained during the pre-cooking, the pre-cooked rice / water amount determining means determines the rice amount and the water amount from the weight, the total amount of power required to maintain the predetermined temperature, and the room temperature. This is because the total heat load of rice and water can be determined from the total amount of power and room temperature, and from the difference in heat capacity between rice and water, the rice amount and water amount can be estimated from the total weight and heat load. Since the determination is made while maintaining the predetermined temperature, it is not affected by the initial water temperature. Accordingly, it is an object of the present invention to provide a rice cooker which can determine the amount of rice and the amount of water during pre-cooking regardless of the water temperature.

The operation of the fifth means is as follows. That is, the weight measuring means measures the combined weight of rice and water. The control means starts rice cooking, the pre-cooked rice / water amount determining means determines the rice amount and the water amount in the pre-cooking process, and the menu determining means determines the cooking menu from the rice amount and the water amount.
If it is determined that the menu is other than white rice cooking, the control means,
In accordance with the cooking process stored in the cooking process storage means, cooking according to the determined menu is performed. When it is determined that the rice is cooked with white rice, the notification unit performs an abnormality notification when the amount of water with respect to the amount of rice is different from the standard of rice cooked with rice. If the user has made a mistake in the amount of water, correct it here. After that, the control means cooks according to the process of white rice cooking. That is, the present invention provides a rice cooker that reports an abnormality in the amount of water and prevents cooking from failing.

[0019]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
This will be described based on FIG.

In FIG. 1, reference numeral 1 denotes a main body, and a heating means 3 such as a heater and a triac or a heater and a current control circuit, a control means 7 for controlling the heating means 3, and a weight of the object to be cooked are measured at the bottom. Weight measurement means 8, lid 5 on the top,
In addition, an inner pot 2 is provided inside. A temperature detecting element 4 such as a thermistor for detecting the temperature of the object to be cooked is provided at the center bottom of the inner pot 2. The main body 1 also includes a time measuring means 6 for measuring time, a first pre-cooked rice / water amount determining means 9 for determining the rice amount and the water amount, a menu determining means 10 for inputting the rice amount / water amount, and a menu for each menu. There is provided a cooking process storage means 11 for storing a cooking process. In the present embodiment, the timer means 6, the control means 7, the first pre-cooked rice / water amount judging means 9, the menu judging means 10 and the cooking process storing means 11 are constituted by a microcomputer.

FIG. 2 shows the output of the temperature detecting element 4 during rice cooking in the white rice course. The rice cooking process is pre-cooked as shown in FIG.
Cook, cook again and go ahead with purple. In the pre-cooking process, the temperature is raised first, and after reaching a predetermined temperature, the power is turned on / off so as to maintain the temperature.

Hereinafter, the operation of this embodiment will be described along the cooking process. The user puts rice and water in an amount appropriate for the desired cooking into the inner pot 2, and presses a switch (not shown) to start cooking. The room temperature measuring means 12 measures the room temperature,
The weight measuring means 8 measures the total weight of rice and water.
The control means 7 drives the heating means 3 to start heating. When the output of the temperature detecting element 4 reaches a predetermined value, the first pre-cooked rice / water amount determining means 9 operates to output the rice amount and the water amount. The menu determining means 10 determines the menu by using the rice amount and the water amount as inputs. The control unit 7 reads the cooking process from the cooking process storage unit 11 according to the determined menu, and controls the heating unit 3 according to the cooking process. In this way, it operates as a rice cooker that determines the amount of rice and the amount of water in the early stage of pre-cooking by inputting the weight, the rate of temperature rise and the room temperature, and also determines the menu from the amount of rice and the amount of water and automatically sets and cooks Is what you do.

Next, the first pre-cooked rice / water amount determining means 9 will be described with reference to FIGS. FIG. 3 shows the configuration of the first pre-cooked rice / water amount determining means 9. The first pre-cooked rice / water amount judging means 9 is a fuzzy inference device that inputs the temperature rise rate, the total weight, and the room temperature and outputs the rice amount and the water amount.
From the temperature rise rate and the room temperature, the total heat load of rice and water can be determined, and from the difference in heat capacity between rice and water, the rice amount and water amount can be estimated from the total weight and the total heat load. Therefore, the amount of rice and the amount of water can be represented by a non-linear input / output relationship using the temperature rise rate, weight, and room temperature as inputs. By using a fuzzy inference device, this nonlinear input-output relationship can be easily represented. The temperature rise rate in the pre-cooking step can be easily obtained by differentiating the output of the temperature detection element 4 at the time of the first temperature rise.

An embodiment of a fuzzy inference device which is the first pre-cooked rice / water amount determining means 9 will be described with reference to FIGS. An inference rule is, for example, "The temperature rise rate is low, the room temperature is low,
If the weight is large, the amount of rice is normal and the amount of water is small. " A qualitative concept such as a small temperature rise or a small rice quantity is quantitatively expressed by the membership function shown in FIG.

Next, the operation of the menu determining means 10 will be described. When a certain amount of rice is cooked on rice and when cooked on porridge, the amount of water is different. When about 300 g of rice is cooked on rice, the water is about 490 g.
In the case of porridge, the weight is about 2300 g. When about 70g of rice is cooked in the whole porridge, it is about 445g and in the case of 5 minutes porridge about 62g
5 g. As described above, since the weight ratio of rice and water differs depending on the amount of the menu and the amount of rice, if the menu is determined only from the weight ratio of rice and water, the determination accuracy deteriorates. Therefore, the menu is determined from the amount of rice and the amount of water. In the present embodiment, the menu determining means 10 outputs a menu according to the amounts of rice and water, as shown in FIG.

As described above, according to the present embodiment, it is possible to provide a rice cooker that determines the amount of rice and the amount of water at the beginning of pre-cooking, and automatically determines a menu from the amount of rice and the amount of water to cook. Since the menu can be determined in the heating process at the beginning of the pre-cooking, the constant temperature to be maintained in the pre-cooking can be changed for each menu.

In the present embodiment, the consequent variable of the fuzzy inference is a general triangular type, but it can be realized by a real value or a linear form.

Further, in this embodiment, the first pre-cooked rice / water amount judging means 9 which is a fuzzy inference device which inputs the temperature rise rate, the weight and the room temperature outputs the rice amount and the water amount. Although the example in which the menu determination unit 10 determines the menu based on the amount of water has been described, it goes without saying that a fuzzy inference device that inputs the temperature rise rate, weight, and room temperature and outputs the menu functions similarly.

(Embodiment 2) Hereinafter, a second embodiment of the present invention will be described with reference to FIGS.

In FIG. 7, the main body 1 is provided with a lid temperature measuring means 13 for measuring the temperature of the lid inside the lid 5. Further, the main body 1 is provided with a second pre-cooked rice / water amount determining means 14 for determining the amount of rice and the amount of water. The second pre-cooked rice / water amount determining means 14 is constituted by a microcomputer in the present embodiment. In addition, the same numbers are used for the same components as in the first embodiment.

FIG. 8 shows the outputs of the temperature detecting element 4 and the lid temperature measuring means 13 during rice cooking in the white rice course. In the pre-cooking process, the lid is slowly heated because the lid is indirectly heated by the temperature of the object heated during the cooking.

Hereinafter, the operation of this embodiment will be described along the cooking process. The user puts rice and water in an amount appropriate for the desired cooking into the inner pot 2, and presses a switch (not shown) to start cooking. The room temperature measuring means 12 measures the room temperature,
The weight measuring means 8 measures the total weight of rice and water.
The control means 7 drives the heating means 3 to start heating. At the end of the pre-cooking, the second pre-cooked rice / water amount determining means 14 operates, and outputs the rice amount and the water amount by inputting the weight, the room temperature, and the lid temperature rise rate. The menu determining means 10 determines the menu by using the rice amount and the water amount as inputs. The control unit 7 reads the cooking process from the cooking process storage unit 11 according to the determined menu, and controls the heating unit 3 according to the cooking process.
As described above, the weight, the lid temperature rise rate, and the room temperature are input to determine the amount of rice and the amount of water at the time of pre-cooking, and the rice cooker operates as a rice cooker for automatically setting and determining a menu based on the amount of rice and the amount of water. Things.

Next, the second pre-cooked rice / water amount judging means 14 will be described with reference to FIGS. FIG. 9 shows the configuration of the second rice / water amount determining means 14. The second rice / water amount determination means 13 is a fuzzy inference device that receives the weight, the lid temperature rise rate, and the room temperature as inputs, and outputs the rice amount and the water amount. In the pre-cooking process, the lid is slowly heated because the lid is indirectly heated by the temperature of the object heated during the cooking. Therefore, the measurement accuracy of the heat load in the pre-cooking process is good. Therefore, the amount of rice and the amount of water can be accurately determined during the pre-cooking process.

An embodiment of the fuzzy inference unit as the second rice / water amount determining means 12 will be described with reference to FIGS. The inference rule is, for example, "If the lid temperature rise rate is low, the room temperature is low, and the weight is large, the rice amount is normal and the water amount is low."
And consists of eight rules shown in FIG. A qualitative concept such as a small lid temperature rise rate or a small rice quantity is quantitatively expressed by a membership function shown in FIG.

As described above, according to the present embodiment, it is possible to provide a rice cooker that accurately determines the amount of rice and the amount of water in the pre-cooking process and automatically determines a menu from the amount of rice and the amount of water to cook.

In the present embodiment, the consequent variable of the fuzzy inference is a general triangular type, but it can be realized by a real value or a linear form.

In this embodiment, the lid temperature measuring means 13 and the room temperature measuring means 12 are separately provided. However, the temperature of the lid temperature measuring means 13 before the start of rice cooking can be used as the room temperature.

Further, in the present embodiment, the second pre-cooked rice / water amount determination means 14 which is a fuzzy inference unit which receives the lid temperature rise rate, the weight and the room temperature as inputs, outputs the rice amount and the water amount. Although the menu determining means 10 determines the menu from the amount of water and the amount of water, it is needless to say that a fuzzy inference device that inputs the lid temperature rise rate, weight, and room temperature and outputs the menu functions similarly. .

(Embodiment 3) Hereinafter, a third embodiment of the present invention will be described with reference to FIGS.

In FIG. 12, the main body 1 includes a power measuring means 16 for measuring the power during pre-cooking, and a third pre-cooked rice / water amount determining means 15 for judging the amount of rice and the amount of water during pre-cooking. . In this embodiment, the power measuring means 16 and the third pre-cooked rice / water amount determining means 15 are constituted by microcomputers. In addition, the same reference numerals are used for the same components as those in the first embodiment.

Hereinafter, the operation of this embodiment will be described along the cooking process. The user puts rice and water in an amount appropriate for the desired cooking into the inner pot 2, and presses a switch (not shown) to start cooking. The room temperature measuring means 12 measures the room temperature,
The weight measuring means 8 measures the total weight of rice and water.
The control means 7 drives the heating means 3 to start heating. The power measuring means 16 counts the time during which power was applied during pre-heating as the total amount of power used during pre-heating.
At the end of the pre-cooking, the third pre-cooked rice / water amount determining means 15 operates to output the rice amount and the water amount by inputting the total amount of weight, room temperature and power. The menu determining means 10 determines the menu by using the rice amount and the water amount as inputs. The control unit 7 reads the cooking process from the cooking process storage unit 11 according to the determined menu, and controls the heating unit 3 according to the cooking process. As described above, the input of the weight, the total power used, and the room temperature is used to determine the amount of rice and the amount of water at the time of pre-cooking. Also, the menu is determined from the amount of rice and the amount of water to automatically set and operate as a rice cooker for cooking. Things.

Next, the third pre-cooked rice / water amount determining means 15 will be described with reference to FIGS. FIG.
3 shows a configuration of the third rice / water amount determining means 15. The third rice / water amount determination means 15 is a fuzzy inference device that inputs the weight, the total power, and the room temperature and outputs the rice amount and the water amount. In the pre-cooking process, after the initial temperature rise, the control means 7 controls the heating means 3 so that the output of the temperature detecting element 4 maintains a constant temperature. Therefore, when the load is large, the power is large. Therefore, the total amount of used power is counted, and when used together with the room temperature, the total amount of heat load can be estimated. Also, by counting the power after raising the temperature to a predetermined temperature,
There is an advantage that the heat load can be measured without being affected by the initial water temperature.

An embodiment of the fuzzy inference device as the third rice / water amount determination means 15 will be described with reference to FIGS. The inference rules are, for example, "If the total power is small, the room temperature is low, and the weight is large, the amount of rice is normal and the amount of water is small." A qualitative concept such as "low power" or "low rice" is quantitatively expressed by the membership function shown in FIG.

As described above, according to the present embodiment, a rice cooker is provided which determines the amount of rice and the amount of water in the pre-cooking process without being affected by the initial water temperature, and automatically determines a menu from the amount of rice and the amount of water to cook. be able to.

In this embodiment, the consequent variable of the fuzzy inference is a general triangular type, but it can be realized by a real value or a linear form.

In this embodiment, a third pre-cooked rice, which is a fuzzy inference device that inputs the total power, weight, and room temperature, is used.
The example in which the water amount determining means 15 outputs the rice amount and the water amount and the menu determining means 10 determines the menu from the rice amount and the water amount has been described. Needless to say, even if an inference device is provided, the same operation is performed.

(Embodiment 4) Hereinafter, a fourth embodiment of the present invention will be described with reference to FIGS.

In FIG. 16, the main body 1 is provided with a notifying means 17 for notifying the abnormality of the water amount. In the present embodiment, the notifying unit 17 includes a microcomputer and a display element such as an LCD. In addition, the same numbers are used for the same components as in the first embodiment.

Hereinafter, the operation of this embodiment will be described along the cooking process. The user puts rice and water in an amount appropriate for the desired cooking into the inner pot 2, and presses a switch (not shown) to start cooking. The room temperature measuring means 12 measures the room temperature,
The weight measuring means 8 measures the total weight of rice and water.
The control means 7 drives the heating means 3 to start heating. When the output of the temperature detecting element 4 reaches a predetermined value, the first pre-cooked rice / water amount determining means 9 operates to output the rice amount and the water amount. The menu determining means 10 determines the menu by using the rice amount and the water amount as inputs. If the menu is determined to be a menu other than white rice cooking, the control means 7 reads the cooking process from the cooking process storage means 11 and controls the heating means 3 according to the cooking process. When it is determined that the rice is cooked with white rice, the notifying unit 17 performs an abnormality notification when the amount of water with respect to the amount of rice is different from the standard rice cooked with rice.
If the user has made a mistake in the amount of water, correct it here. The rice cooking process at this time is a stage of pre-cooking, in which water is absorbed into rice, so that if the amount of water is corrected at this stage, the rice can be cooked in a standard manner. If you intentionally change the amount of water to cook for a softer taste, leave it as is without any modification. Thereafter, the control means 7 reads the cooking process of white rice cooking from the cooking process storage means 11 and controls the heating means 3. As described above, the apparatus operates as a rice cooker that reports an abnormality in the amount of water and prevents cooking from failing.

Next, the operation of the notification means 17 will be described with reference to FIG. As shown in FIG. 17, the notification means 17 obtains a standard water amount Wh from the rice amount Wr according to a standard value table. Next, an error dW is obtained from the water amount Ww and the standard water amount Wh. According to the value of dW, when there is no abnormality, no notification is made,
When there is an abnormality, a message is displayed and notified according to the amount of the error. There are four types of messages shown in FIG. 17, such as "cooking for heating" and "too little water" according to the error amount.

As described above, according to the present embodiment, it is possible to provide a rice cooker that detects and reports an abnormality in the amount of water based on the amount of rice and the amount of water when cooking white rice and prevents cooking from failing.

Although the example in which the message is displayed has been described, a warning may be given by voice.

[0053]

As described above, according to the present invention, the pre-cooked rice / water amount determining means determines the rice amount and the water amount, and the menu determining means determines the menu from the rice amount and the water amount. Controls the heating means according to the cooking process corresponding to the menu read from the cooking process storage means, so that the menu can be automatically determined and cooked without the user inputting the menu.

Further, according to the present invention, fuzzy inference using the measured value of the weight measuring means as the pre-cooked rice / water quantity judging means, the temperature rise rate at the time of pre-cooking temperature rise by the temperature detecting element, and the room temperature by the room temperature detecting means is input. By providing a vessel, the amount of rice and the amount of water can be determined at the beginning of pre-cooking.

Further, according to the present invention, fuzzy inference using the measured value of the weight measuring means as the means for judging pre-cooked rice / water quantity, the rate of rise of the lid temperature during pre-cooking by the lid temperature measuring means, and the room temperature by the room temperature detecting means is input. By providing a vessel, it is possible to accurately determine the amount of rice and the amount of water during pre-cooking.

According to the present invention, a pre-cooked rice / water amount judging means is provided with a fuzzy inference device which inputs the measured value of the weight measuring means, the total power by the power measuring means, and the room temperature by the room temperature detecting means. During cooking, the amount of rice and the amount of water can be determined without being affected by the initial water temperature.

In addition, according to the present invention, the menu judging means judges the menu from the rice quantity and the water quantity by the pre-cooked rice / water quantity judging means. Since the abnormality is detected and the abnormality is notified, the user can correct the amount of water if he or she has made a mistake, and it is possible to prevent the rice cooker from failing due to the wrong amount of water.

[Brief description of the drawings]

FIG. 1 is a schematic view of a rice cooker according to a first embodiment of the present invention.

FIG. 2 is a characteristic diagram showing a temperature change of the rice cooker.

FIG. 3 is a block diagram of a first pre-cooked rice / water amount determining means of the rice cooker.

FIG. 4 is a diagram showing an inference rule of a fuzzy inference device which is a first pre-cooked rice / water amount determination means of the rice cooker.

FIG. 5 is a view showing membership functions of an antecedent part and a consequent part of an inference rule of a fuzzy inference device which is a first pre-cooked rice / water amount determination means of the rice cooker.

FIG. 6 is a block diagram of a menu determining means of the rice cooker.

FIG. 7 is a schematic view of a rice cooker according to a second embodiment of the present invention.

FIG. 8 is a characteristic diagram showing a temperature change of the rice cooker.

FIG. 9 is a block diagram of a second pre-cooked rice / water amount determining means of the rice cooker.

FIG. 10 is a diagram showing an inference rule of a fuzzy inference device which is a second pre-cooked rice / water amount determination means of the rice cooker.

FIG. 11 is a diagram showing membership functions of an antecedent part and a consequent part of an inference rule of a fuzzy inference device which is a second pre-cooked rice / water amount determination means of the rice cooker.

FIG. 12 is a schematic view of a rice cooker according to a third embodiment of the present invention.

FIG. 13 is a block diagram of a third pre-cooked rice / water amount determining means of the rice cooker.

FIG. 14 is a diagram showing an inference rule of a fuzzy inference device which is a third pre-cooked rice / water amount determination means of the rice cooker.

FIG. 15 is a diagram showing membership functions of an antecedent part and a consequent part of an inference rule of a fuzzy inference device which is a third pre-cooked rice / water amount determination means of the rice cooker.

FIG. 16 is a schematic view of a rice cooker according to a fourth embodiment of the present invention.

FIG. 17 is a block diagram of a notification means of the rice cooker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Inner pan 3 Heating means 4 Temperature detecting element 5 Lid 6 Time measuring means 7 Control means 8 Weight measuring means 9 First precooked rice / water amount determining means 10 Menu determining means 11 Cooking process storing means 12 Room temperature measuring means 13 Lid Temperature measuring means 14 Second pre-cooked rice / water amount determining means 15 Third pre-cooked rice / water amount determining means 16 Power measuring means 17 Notification means

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hideyuki Konan 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. In-company (56) References JP-A-5-154043 (JP, A) JP-A-4-58912 (JP, A) JP-A-63-15927 (JP, A) JP-A-5-15448 (JP, A) ) Actually Open Hei 3-17728 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47J 27/00

Claims (5)

(57) [Claims] 1. A heating means for heating a pot arranged in a rice cooker main body, a control means for controlling an energization ratio of the heating means,
A temperature detecting element for detecting the temperature of the pan, a room temperature detecting means for detecting the room temperature, a weight measuring means for measuring the weight of the object to be cooked in the pan, and the temperature detecting element and the room temperature during a pre-cooking process. Pre-cooked rice / water amount determination means for determining the rice amount and water amount based on the outputs of the detection means and the weight measurement means,
Menu determining means for determining a rice cooked menu by inputting the rice amount and water amount by the pre-cooked rice / water amount determining means, wherein the control means stores a cooking process for each of the cooked rice menus according to the determined rice cooked menu. A rice cooker that reads a cooking process from a cooking process storage unit that is performing the heating process and controls the heating unit according to the read cooking process. 2. A rice cooker according to claim 1, further comprising: a pre-cooked rice / water amount determining means having a fuzzy inference unit for inputting a measured value of the weight measuring means, a rate of temperature rise by the temperature detecting element, and room temperature by the room temperature detecting means. vessel. 3. Pre-cooking apparatus having a lid temperature measuring means for measuring the temperature of the lid, a fuzzy inference device which inputs a measured value of the weight measuring means, a lid temperature rise rate by the lid temperature measuring means, and a room temperature by the room temperature detecting means. 2. A rice / water quantity determining means.
The described rice cooker. 4. Pre-cooked rice having power measuring means for measuring power used during cooking, and a fuzzy inference device which inputs a measured value of the weight measuring means, a detected value of the power measuring means, and a room temperature by the room temperature detecting means. -Claim 1 provided with water quantity judgment means.
The described rice cooker. 5. The rice cooker according to claim 1, further comprising a notification means for inputting the rice quantity and the water quantity by the pre-cooked rice / water quantity determination means and notifying the water quantity abnormality when the water quantity is different from the predetermined quantity.