JPH08303794A - Thermal cooker - Google Patents

Abstract

PURPOSE: To prevent possible error after the starting operation of heating due to misoperation in running a thermal cooker by accomplishing annunciation for prevention pertaining to errors at a proper timing when a value obtained by multiplying the occurrence frequency by error type by a coefficient reaches a specified annunciation level. CONSTITUTION: When an error is generated, an updating processing of the occurrence frequency Fx by error type is performed to stop heating while the occurrence of the error is notified. In the updating of the occurrence frequency, the error occurrence frequency Fx is read corresponding to the error generated as stored in an EEPROM 2 and the frequency Fx is added to by a value obtained by multiplying the present occurrence frequency 1 by a weighted coefficient Kx of the error. The results are compared with an upper limit value Ax of error preset and when the results are larger than the upper limit value Ax, the upper limit value Ax is written into the EEPROM 2 and the results done thereinto when the results are smaller than the upper limit value Ax.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker having an error pre-prevention function, and more particularly, to a pre-prevention notification for an error that frequently occurs at an appropriate timing.

[0002]

2. Description of the Related Art In a microwave oven, if the operation procedure is incorrect or the accessory or heating aid is not attached properly, the heating is stopped immediately after the start of heating or after a lapse of a predetermined time, and an error message is displayed. Is urged to. For example, the microwave oven with a heater disclosed in Japanese Examined Patent Publication No. Sho 61-36132 informs the user that the heating start key is erroneous when the detachable refrigerator heater is not attached. It has become.

[0003]

If the heating is interrupted by an error when the user leaves the cooking device immediately after the heating start operation, the time until the user notices that the heating is interrupted by an error is lost. However, there was a problem that the cooking schedule was out of order.

An object of the present invention is to prevent the occurrence of an error after the heating start operation due to an operation error of the heating cooker.

[0005]

According to a first aspect of the invention, an error occurrence frequency storage means for storing the occurrence frequency of each error type in a non-volatile memory and a value obtained by integrating a coefficient with the occurrence frequency of each error type are predetermined. And a notification control means for appropriately performing a preliminary prevention notification about the error when the notification level is reached.

The frequency of occurrence is a number of times of occurrence or a numerical value such as "number of times of occurrence / number of times of cooking execution", and the appropriate timing is when the cooking mode is set or the cooking menu is set, when the sensor recognizes the menu or when the state is determined. Conceivable. The non-volatile memory is generally an EEPROM or a flash memory.

According to the second aspect of the present invention, a notification necessity setting means for setting whether or not to perform the notification for error advance prevention is provided, and when the "notification of notification" is set, the notification control is not performed. To

According to the third aspect of the invention, the error occurrence frequency storage means is configured to reduce the stored occurrence frequency for each type when the heating program ends without any error.

According to the invention of claim 4, the error pre-prevention weighting is performed for each error type by changing the coefficient for each error type.

According to the fifth aspect of the present invention, the predetermined warning level is changed according to the type of error, so that the weighting of the error advance prevention is performed according to the type of error.

[0011]

According to the first aspect of the present invention, when the frequency of occurrence of each type of error reaches a predetermined notification level, a notification for advance prevention regarding the error is given at an appropriate timing.

According to the second aspect of the present invention, if "notification of notification" is set by the notification necessity setting means for setting whether or not to perform notification for error advance prevention, the notification is not performed.

According to the third aspect of the invention, when the heating program ends without any error, the stored occurrence frequency for each type decreases.

According to the invention of claim 4, weighting for error advance prevention is performed for each type of error by the coefficient.

According to the fifth aspect of the present invention, weighting for preventing errors in advance is performed for each type of error according to the predetermined notification level.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a heating cooker according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a main part of a heating cooker having an error pre-prevention function according to the present invention. Reference numeral 1 is a microprocessor for controlling the entire heating cooker, and 2 is a nonvolatile memory composed of an EEPROM. is there. The EEPROM 2 has an error occurrence frequency for each type of error, a coefficient for weighting the error pre-prevention, a predetermined notification level for determining whether or not to perform the error pre-prevention notification, and an error pre-prevention notification. Setting information such as whether or not to perform is stored.

Reference numeral 3 denotes various sensors for detecting the type of heating auxiliary tool and physical changes due to heating, 4 various relays for controlling heating means (not shown) and blowing means, 5 a power source for control circuit, 6 Is an informing means for making an advance notice of error prevention by characters or voice, and 7 is an input means composed of a keyboard. The keyboard 7 is provided with a notification necessity setting key for setting whether or not to perform notification for error advance prevention, and “notification required” is performed each time the key is pressed.
Alternatively, “notification” is set in the notification necessity setting area of the EEPROM 2 and characters are displayed on the display.

Next, the notification control for the advance error prevention will be described with reference to the flow charts of FIGS. When the input of the heating start key is detected (S1), the cooking menu to be executed is recognized (S2). As for the recognition of the cooking menu, the recognition of the cooking menu set by the input means 7 or the automatic recognition based on the detection information of the various sensors 3 is performed.

Then, it is determined whether "notification required" is set in the notification necessity setting area (S3),
In the case of "notification required", it is determined whether or not the occurrence frequency F _X for each cooking menu and the type of error stored in the error occurrence frequency storage area of the EEPROM 2 has reached the notification level L _X (S4), and the occurrence occurs. If the frequency F _X is equal to or higher than the notification level L _X , notification of error advance prevention is performed (S5). For example, if the frequency of occurrence of an error in which the weight of food exceeds 1 kg during thawing and cooking is high, a notification "whether the weight of food exceeds 1 kg" is issued.

When the notification of the error advance prevention is given, the input of the heating start key is awaited for the purpose of starting the heating operation after confirming the notification (S6). The input of the heating start key is detected and the heating operation is performed (S7),
The presence / absence of various errors corresponding to the cooking menu is determined (S8).

When an error occurs, the following error type-specific occurrence frequency F _X update processing (S9 to S13) is performed to stop heating and inform that an error has occurred (S14). Then, the cause of the error is canceled, the error cancel key is pressed (S15), and the process corresponding to the type of error is executed.

To update the occurrence frequency, the error occurrence frequency F _X corresponding to the occurrence error stored in the EEPROM 2 is read (S9), and the occurrence frequency 1 and the weighting coefficient K for this error are read in this frequency F _X. A value multiplied by _X is added (S10), the value is compared with a preset upper limit value A _{X of the} error (S11), and if it is larger than the upper limit value A _X , the upper limit value A _X is set (S12). If it is smaller than the upper limit value A _X , the value is written and stored in the EEPROM 2 (13).
The upper limit value A _X is to prevent a situation anyway the notification for precautionary error at the next next and subsequent cooking next time be terminated heating without errors made in advance prevention notification of errors is performed It is for. When the cooking control is performed without error (S17) and the cooking is finished (S18), the following error type-specific occurrence frequency F _X update processing (S19 to S23) is performed and heating is stopped (S24). ).

To update the frequency of occurrence, the frequency of occurrence of various errors F _X corresponding to the cooking menu stored in the EEPROM 2 is read (S19), and the frequency of occurrence 1 is subtracted from this frequency F _X (S20). ), And compares the value with a preset lower limit value B _{X of the} error (S2
1), if it is smaller than the lower limit value B _X , the lower limit value B _{X is set} to (S22),
If it is larger than the lower limit value B _X , that value is written and stored in the EEPROM 2 (23). It should be noted that the lower limit value B _X is a problem in which the advance prevention notification of an error is not performed when the frequency of error occurrence is high due to a change in user after the cooking continues to be performed without an error. Is to prevent.

The above is the error advance prevention notification control, and when it is desired not to perform the error advance prevention notification,
"Notification required" EEP by pressing the notification necessity setting key
If it is set in the notification necessity setting area of the ROM 2, it becomes a heating cooker as usual.

In the above embodiment, the weighting for preventing errors is carried out by the coefficient K _X , but it is carried out by the notification level L _X set for each kind of error or by the combination of the coefficient K _X and the notification level L _X. May be.

[0026]

According to the invention of claim 1, when the frequency of occurrence of each type of error reaches a predetermined notification level, advance notification of the error is notified at an appropriate timing, so that the occurrence of the error is prevented. Therefore, it is possible to eliminate a time loss until the user notices that the heating is interrupted due to an error.

According to the second aspect of the present invention, it is possible to set whether or not to give a notification for error advance prevention, and it is possible to use it in a manner that reflects the convenience of the user.

According to the third aspect of the present invention, when the heating program is completed without any error, the stored frequency of occurrence by type is reduced, and when the frequency of error is reduced, the error is automatically prevented in advance. The notification is no longer made, and it becomes an ideal product without unnecessary items.

According to the invention of claim 4, since the weighting for preventing errors in advance is performed for each type of error by the coefficient, it is easy to give a range to the weighting.

According to the invention of claim 5, weighting for preventing errors in advance is performed for each type of error according to the predetermined notification level, so that the weighting can be easily set.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of a heating cooker having an error advance prevention function according to the present invention.

FIG. 2 is a flowchart of an error advance prevention notification control according to the present invention.

FIG. 3 is a flowchart of error advance prevention notification control according to the present invention.

[Explanation of Codes] 1 Microprocessor 2 EEPROM 6 Notification means 7 Input means

Claims (5)

[Claims] 1. A heating cooker comprising a character or voice notifying means and a non-volatile memory, wherein the error occurrence frequency storage means stores the occurrence frequency of each type of error in the memory, and the occurrence frequency of each type of error. A heating cooker provided with an informing control means for performing an advance prevention informing regarding the error at an appropriate timing when a value obtained by integrating the frequency with a coefficient reaches a predetermined informing level. 2. A notification necessity setting means for setting whether or not to perform notification for error advance prevention is provided, and the notification control is not performed when "notification of notification" is set. The cooker described. 3. The heating cooker according to claim 1, wherein the error occurrence frequency storing means is configured to reduce the stored type-specific occurrence frequency when the heating program ends without an error occurring. 4. The cooking device according to claim 1, wherein the coefficient is changed for each type of error, and weighting for preventing errors in advance is performed for each type of error. 5. The cooking device according to claim 1, wherein the predetermined value is changed for each type of error, and weighting for preventing errors in advance is performed for each type of error.