JP3256097B2 - Cooking device equipped with claim analysis means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking device provided with a claim analyzing means.

[0002]

2. Description of the Related Art When there is a complaint from a user regarding a heating cooker such as a rice cooker or an electric pot, it is preferable from a manufacturer's point of view to reproduce the actual product in order to confirm the contents of the complaint. However, due to misuse by the user, the contents of the complaint claimed by the user are often not easily reproduced exactly as such, and therefore are replaced with substitutes without waiting for reproduction.

[0003] Japanese Patent Application Laid-Open No. 2-95314 proposes a rice cooker provided with a failure point display means for displaying a failure point when the rice cooking control means has a failure. Further, Japanese Patent Publication No. 5-52732 proposes a cooker which detects disconnection of a temperature sensor and displays it.

[0004]

However, if any failure or disconnection occurs, it is displayed immediately, so that even if it has little effect on cooking, it is used at the time when it is displayed. become unable. Also, since it simply displays the location of the failure or disconnection, it is necessary to determine the cause of the failure or disconnection, such as when it occurred, in what process it occurred, and how much the internal temperature was at that time. No information is displayed. Furthermore, since such a failure or disconnection is displayed only once, when a plurality of failures or disconnections occur, the displayed event can be dealt with, but the other events can be dealt with. Cannot be processed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems. When a complaint event such as a failure or disconnection occurs, the complaint can be stored and can be freely called at any time, so that the complaint processing can be performed quickly and reliably. It is an object of the present invention to provide a cooking device provided with a claim analyzing means capable of performing the method.

[0006]

Means for Solving the Problems To achieve the above object, a cooking device according to the present invention comprises a power failure, a sensor disconnection,
Claim event detecting means for detecting whether or not an event which may be claimed by a user assumed in advance without a pot and cooked foreign matter is stored, and a claim event detected by the claim event detecting means is stored. Claim event storage means, a claim event calling means for calling a claim event stored in the claim event storage means, and a claim event display means for displaying a claim event called by the event calling means. It is provided.

[0007] Preferably, the claim event storage means stores a cooking menu, a cooking mode, a cooking process, and a sensor detected temperature together with the detected claim event. The claim event storage means can store and display rice cooking data such as a rice cooking capacity, a fuzzy operation value, a duty cycle, a transition time, a transition temperature, and a transition temperature gradient of each process together with the detected claim event. It is preferable to do so. The claim event storage means can store a plurality of the detected claim events, and when the number exceeds the number, it is preferable to delete the past one and add the latest one.

Preferably, the claim event calling means is activated by simultaneously operating a plurality of existing parts which are not normally used at the same time, and is released by operating other existing parts. Further, the claim event calling means sequentially calls different claim events by sequentially operating existing parts, and sequentially operates other existing parts to change the latest from the latest of the claim events to the past. Preferably, they are called sequentially.

It is preferable that the claim event display means displays a claim event by using an existing display unit.

[0010]

According to the above construction, when an event that may be claimed by a user assumed in advance occurs, the event is detected by the claim event detection means and stored in the claim event storage means. When a claim event is called by the claim event calling means on the manufacturer side, the claim event is displayed on the claim event display means. As a result, if the content of the claim matches the displayed claim event, it can be processed without being reproduced.

[0011]

Next, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a claim analyzing means according to the present invention, which is applied to a rice cooker. The claim analyzing means stores a claim event detecting means 1 for detecting whether or not an event which may be claimed by a user assumed in advance occurs, and a claim event detected by the claim event detecting means 1. Claim event storage means 2 for making a claim, claim event calling means 3 for calling a claim event stored in the claim event storage means 2, claim event display means 4 for displaying the claim event called by the event calling means 3, And initialization means 5 for erasing and initializing the contents stored in the claim event storage means 2.

The claim event detecting means 1 includes a power failure detecting means 1a, a side sensor disconnection detecting means 1b, a lid sensor disconnection detecting means 1c, a bottom sensor disconnection detecting means 1d, a potless detecting means 1e, and a foreign rice cooking detecting means 1f. Has become.

FIG. 2 is a block diagram of the rice cooker according to the present embodiment, showing a microcomputer 10 roughly divided into a control unit 11 and a storage unit 12 and its input / output blocks. The rice-cooking heater control means 13 and the heat-retention heater control means 14 control a rice-cooking heater and a heat-retention heater (not shown) based on a signal from the control section 11 to perform rice cooking and heat-retention operations.

The temperature detecting circuit 15, as shown in FIG.
Inner by inputting the divided voltage at the midpoint between the reference resistor R ₁ connected in series to the thermistor 16a and the thermistor 16a disposed on the side surface of the inner pot rice cooker AD port of the microcomputer 10 a side temperature detection circuit 15a for detecting the temperature of the side of the pan, and the lid temperature detection circuit 15b for detecting the temperature of the cover as well by the thermistor 16b and the reference resistance R ₂ which is arranged on the outer surface of the inner lid, the inner bowl bottom temperature detecting circuit 1 for detecting the temperature of the bottom of the inner bowl as well by the thermistor 16c and the reference resistor R ₃ arranged on the bottom surface
5c. These temperature detection circuits 15a,
15b and 15c, together with the control unit 11 of the microcomputer 10, constitute the side sensor disconnection detecting means 1b, the lid sensor disconnection detecting means 1c, and the bottom sensor disconnection detecting means 1d of the claim event detecting means 1 of the present invention shown in FIG. I do.

The panless detection circuit 17 also serves as the side temperature detection circuit 15a. When the reed switch 18 is connected in parallel with the thermistor 16a of the side temperature detection circuit 15a and the reed switch 18 is out of the pan, It is turned on. This potless detection circuit 1
7, together with the control unit 11 of the microcomputer 10, constitutes the potless detecting means 1e of the claim event detecting means 1 of the present invention shown in FIG.

The zero-cross detection circuit 19 detects a zero-cross point of a commercial AC power supply, and inputs a pulse to the interrupt input port of the microcomputer 10 every time the zero-cross point is detected. This zero cross detection circuit 1
9 together with the control unit 11 of the microcomputer 10 constitutes the power failure detection means 1a of FIG.

As shown in FIG. 4, the switch input means 20 includes various switches arranged on the operation display panel 21 of the rice cooker, that is, a rice cook switch 22a, a heat retention / cancel switch 22b, a good night heat retention switch 22c, a menu switch. 22d, reservation switch 22e, time switch 22
f, a minute switch 22g, and a set switch 22h. The switch input means 20 constitutes the claim event calling means 3 of FIG. 1 together with the control unit 11 of the microcomputer 10.

The display means 23 has a liquid crystal display panel 24 provided on the operation display panel 21, as shown in FIG. On the liquid crystal display panel 24, "normal", "soft",
A triangular menu pointer display section 24a corresponding to "kakata" and "porridge", a character display section 24b of "reservation", and a two-digit number display section 24c on the right side of the "reservation" display section 24b.
And a character display portion 24d for "time", a two-digit number display portion 24e on the left side of the "time" display portion 24d, and a two-digit number display portion 24f on the right side of the "time" display portion 24d. Have been. The display means 23 constitutes the claim event display means 4 together with the control unit 11 of the microcomputer 10.

The storage unit 12 of the microcomputer 10
Constitutes the claim event storage means 2 of FIG. Also,
The control unit 11 of the microcomputer 10 also constitutes the initialization means 5 of FIG. Reference numeral 25 denotes a power supply circuit for driving the microcomputer 10, reference numeral 26 denotes a battery circuit for backing up the storage unit, and reference numeral 27 denotes a reference for operating the microcomputer or setting the date, time and clock operation. It is a clock generation circuit.

Hereinafter, a claim analysis operation by the control unit 11 of the microcomputer 10 in the rice cooker having the above-described configuration will be described with reference to flowcharts shown in FIGS.
FIG. 5 is a flowchart of the power failure detection operation, and this operation is always executed from when the power is turned on until when the power is turned off. In step 101, the zero-crossing interval is measured based on the zero-crossing pulse input from the zero-crossing detection circuit 19, and in step 102, it is determined whether or not there is no input during the zero-crossing pulse of 32 ms. If there is an input, it is normal, so the flow returns to step 101 to continue the measurement of the zero-cross interval. If there is no input, it is recognized as a power failure, and the current mode, menu, process, and all sensor detected temperatures are stored in the storage unit 12 in step 103,
In step 104, the abnormality number F is set to 1 (disconnection), and this F value is also stored in the storage unit 12. Then, the process returns to step 101, and the same power failure detection operation is repeated.

FIG. 6 is a flowchart of an operation for detecting an abnormality in disconnection, absence of a pot, and foreign rice cooking, and this operation is executed at the beginning of each rice cooking process. In step 201, if the side detection temperature T _S (the average of the AD values read eight times in succession every 16 ms) from the side temperature detection circuit 15a is equal to or less than 04H (hexadecimal), the abnormal number F is set to 2 (in step 202). This is stored as side sensor disconnection). In step 203, the lid detection temperature T _F from the lid temperature detection circuit 15b (average of AD values read eight times in succession every 16 ms)
Is less than or equal to 04H (hexadecimal), at step 204, the abnormality number F is stored as 3 (lid sensor disconnection). In step 205, the bottom detection temperature T _B from the bottom temperature detection circuit 15c (A read continuously 8 times every 16 ms)
If the average of the D values is equal to or smaller than 03H (hexadecimal number), the abnormal number F is stored as 4 (bottom sensor disconnection) in step 206.

Then, in step 207, if the side detected temperature T _S from the no-pot detecting circuit 17 also serving as the side temperature detecting circuit 15a is higher than F0H (hexadecimal), it is recognized that there is no pot, and in step 208, the pot is detected. Turns off the counter C _N. Then, in steps 209 and 210, if there is a pot before the panless counter C _N has elapsed for 5 seconds, the process proceeds to step 212, and the pan-less counter C _N remains at 5 without the pan.
If two seconds have elapsed, the abnormal number F is set to 5 in step 211.
(No pan) and proceeds to step 212.

In step 212, the detected bottom temperature T _B is 1
If the temperature is equal to or higher than 40 ° C., the abnormal number F is set to 6 (foreign rice cooking) in step 213 and stored. Subsequently, if the abnormality number F is 0 in step 214, there is no abnormality, so the current process is processed. If the abnormality number F is not 0 but any of 2 to 6, the current process is stored in the storage unit 12 in step 215. After storing the menu, the mode, the process, and the temperatures detected by all sensors, the current process is set in step 216 to start the process.

In this way, a power failure is always detected, disconnection of the thermistors 16a, 16b, 16c, no pot, and foreign rice cooking are detected in each process, and the mode at the time when the abnormality is detected is as follows. The menu, process, and thermistor temperature are stored in the storage unit 12 of the microcomputer 10.
Is stored.

FIG. 7 is a flowchart showing the operation of calling and displaying the claim event stored in the storage unit 12 as described above. The calling of the complaint event is performed on the maker side when there is a complaint from the user. First, in step 301, it is confirmed that a predetermined combination of switches has been pressed and the power has been turned on. In step 302, the screen display numbers X and Y are set to 1 and 1, respectively. 24, an (XY) screen is displayed.

In step 304, it is determined whether or not the set switch 22h is turned on. If it is turned on, 1 is added to X in step 305, and it is confirmed in step 306 that X is 4 or less. Then, the process returns to step 303 to display the next screen. In step 306, X
Is greater than 4, the X is reset to 1 and the initial screen is displayed.

In step 304, the set switch 22
If h has not been pressed, it is determined in step 308 whether or not the menu switch 22d has been turned on. If so, 1 is added to Y in step 309 and step 3
After confirming in step 10 that the Y is 4 or less, the process returns to step 303 to display the next screen. If Y exceeds 4 in step 310, the Y is returned to 1 and the initial screen is displayed.

At the step 308, the menu switch 2
If 2d has not been pressed, it is determined in step 312 whether or not the cancel switch 22b has been pressed. If not, the process returns to step 303 and repeats the above steps. At 313, it is determined whether the minute switch has been pressed. If the minute switch is not pressed, the process ends. If the switch is pressed, the complaint event stored in the storage unit 12 is erased and initialized by the switch 314, and then the process ends. This initialization is also performed at the time of factory shipment. Further, the switch is different from the initialization of the RAM in the microcomputer provided conventionally.

This calling operation is started by simultaneously pressing a plurality of switches which are not normally operated at the same time among the switches shown in FIG. 4 and inserting a power plug into an outlet, whereby the liquid crystal display panel 24 is activated. The event is displayed in. Then, by successively pressing the menu switch 22d, as shown in the vertical direction of FIG. 8, the display is switched between four types of display, that is, an abnormal display, a side sensor temperature, a lid sensor temperature, and a bottom sensor temperature. Further, by sequentially pressing the set switch 22h, as shown in the horizontal direction of FIG.
The batch display is switched in chronological order. The cancellation of this operation is performed simply by pressing the cancel switch 22b.

First, the display contents of the abnormal display will be described. In the abnormality display, a menu, a mode, a process, and details of the abnormality are displayed at a specific location on the liquid crystal display panel 24. Menu: The menu pointer display section 24a corresponding to each menu is turned on. Mode: During timer mode; "Reservation" display 24b is lit. In rice cooking mode; Menu pointer display 24a of the portion corresponding to the menu is lit. In warming mode; "Time" display 24d is lit.

Step: In each step of the rice cooking mode, as shown in the following table, a predetermined number for each step corresponding to each menu is displayed on the numeral display section 24e on the left side of the "time" display section 24d. .

[Table 1]

In the warming mode, as shown in the following table, a predetermined number for each process is displayed on the numeral display section 24e on the left side of the "time" display section 24d.

[Table 2]

Abnormal contents: The following symbols are displayed on the numerical display section 24f on the right side of the "time" display section 24d as the contents of the abnormality. E1; power failure E2; lid thermistor disconnection E3; side thermistor disconnection E4; bottom thermistor disconnection E5; no pot E6; foreign rice cooking time series: "1 → 2 → 12"
→ (blank) "on the numeric display 24c to the right of the" reservation "display 24b.

Next, the display contents of the sensor disconnection will be described. Here, the type of the temperature sensor, the temperature at the time of abnormality, and the time series are displayed at a specific location on the liquid crystal display panel 24. Type of thermistor: The next number is the number display 2 on the left side of the "time" display 24d.
4e. 0: Side sensor 1: Lid sensor 2: Bottom sensor Thermistor temperature: The detected temperature at the time of abnormality detection is displayed in hexadecimal notation on the numeric display 24f on the right side of the "time" display 24d. Time series: The displayed events are displayed in the same order as described above, starting from the newest one.

FIG. 9 shows a specific example of the display. At first, a display appears, and thus, in the power control 1 step (10) of the rice cooking mode in the regular rice menu,
It can be seen that a power outage (E0) has occurred. This is the latest event. When the menu switch 22d is pressed, a display appears, which indicates that the temperature of the side sensor at that time is 8b (100 ° C.). Further, when the menu switch 22d is pressed, a display appears, which indicates that the lid sensor temperature at that time is 96 (95 ° C.). When the menu switch 22d is further pressed,
A display appears, indicating that the bottom sensor temperature at that time is d6 (110 ° C.). When the menu switch 22d is further pressed, the display reappears. If the user wants to see a past one, he only has to press the set switch 22h. If no indication appears, it indicates that the expected claim event has not occurred in the past.

In the above embodiment, the menu, the mode, the process, and the temperature at the time of occurrence of the complaint event are displayed. However, in addition to the above, the rice cooking capacity, the fuzzy calculation value, the duty ratio, the transition condition of each process, and the like. Cooking rice data such as (time, temperature, temperature gradient, etc.) may also be stored and displayed. By doing so, it is possible to check the state of rice cooking when a complaint event occurs, and it is possible to accurately search for the cause of the complaint.

[0037]

As is apparent from the above description, according to the present invention, since the claim event calling means can freely call and display the claim event at any time, the claim content from the user is displayed. If the claim events are coincident or related, the claim can be processed quickly and reliably without having to reproduce the claim content. Further, even if there is a complaint from the user, if there is no abnormality in the displayed content, the user may possibly misuse the content. There is no need to replace the complained item with a substitute, thereby reducing the number of replacements.

[Brief description of the drawings]

FIG. 1 is a block diagram of claim analysis means.

FIG. 2 is a detailed block diagram of the rice cooker.

FIG. 3 is a circuit diagram of a temperature detection circuit and a panless detection circuit.

FIG. 4 is a front view of a display operation panel.

FIG. 5 is a flowchart of a power failure detection operation.

FIG. 6 is a flowchart of a detection operation of disconnection, no pot, and foreign rice cooking.

FIG. 7 is a flowchart of a claim event calling operation.

FIG. 8 is a diagram for explaining a transition order of display of claim events.

FIG. 9 is a specific example of a display of a claim event.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Claim event detection means, 2 ... Claim event storage means, 3 ... Claim event calling means, 4 ... Claim event display means, 5 ... Initialization means.

Continuation of the front page (56) References JP-A-5-211939 (JP, A) JP-A-5-103721 (JP, A) JP-A-62-279020 (JP, A) JP-A-63-119709 (JP) JP-A-56-25623 (JP, A) JP-A-2-109526 (JP, U) JP-B 5-52732 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB Name) A47J 27/00

Claims (8)

(57) [Claims] 1. Claims event detecting means for detecting whether or not an event, which is likely to be claimed by a user assumed by the user, such as a power failure, sensor disconnection, no pot, and foreign rice cooking, has occurred, and the claim event Claim event storage means for storing the claim event detected by the detection means, claim event calling means for calling the claim event stored in the claim event storage means, and a claim for displaying the claim event called by the event calling means A heating cooker provided with a claim analyzing means comprising event displaying means. 2. The claim analyzing means according to claim 1, wherein said claim event storing means stores a cooking menu, a cooking mode, a cooking process, and a temperature detected by a sensor together with the detected claim event. Heating cooker equipped with. 3. The claim event invoking means sequentially invokes different claim events by sequentially operating existing parts, and sequentially operates other existing parts to change the latest to the past of the claim event. 3. A cooking device provided with claim analysis means according to claim 1 or 2, wherein the cooking device is sequentially called. 4. The claim event storage means can store a plurality of detected claim events, and when the number exceeds the detected number, delete past ones and add latest ones. A heating cooker provided with the claim analyzing means according to any one of claims 1 to 3. 5. The claim event calling means is activated by simultaneously operating a plurality of existing parts that are not normally used at the same time, and is released by operating another existing part. A heating cooker provided with the claim analyzing means according to claim 1. 6. The complaint event storage means stores cooked rice data such as a cooked rice capacity, a fuzzy operation value, a duty cycle, a transition time, a transition temperature, and a transition temperature gradient of each step together with the detected claim event. A heating cooker provided with claim analysis means according to any one of claims 1 to 5, wherein these can be displayed. 7. The claim analysis means according to claim 1, further comprising initialization means for erasing and initializing the contents stored in said claim event storage means. Equipped heating cooker. 8. The claim event display means according to claim 1, wherein said claim event display means displays a claim event using an existing display unit. Cooking cooker.