JP3143358B2 - Cooking device - Google Patents

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 a function of preventing errors in advance, and more particularly to a heating cooker in which a notification for an error which frequently occurs frequently is given at an appropriate timing.

[0002]

2. Description of the Related Art In a microwave oven, if an operation procedure is wrong or an accessory or a heating aid is incorrectly mounted, heating is stopped immediately after the start of heating or after a predetermined time has elapsed, and an error message is displayed. Is to be encouraged. For example, the microwave oven with a heater disclosed in Japanese Patent Publication No. 61-36132 informs a user of an erroneous operation when a heating start key is operated in a state where a detachable internal heater is not mounted. 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 the error is lost. However, there was a problem that the schedule of the cooking work was out of order.

[0004] It is an object of the present invention to prevent occurrence of an error after a heating start operation due to an operation error of a heating cooker.

[0005]

Means for Solving the Problems] In the present invention of claim 1, luck
An error occurrence frequency storage means for storing a Type error occurrence frequency in the memory by the rolling operation error, of the error occurrence
When Type error occurrence frequency of the frequency storage means reaches a predetermined notification level after the start of heating operation by the driver misoperation
Items related to the error in order to prevent the occurrence of the error in advance
And a notification control unit for performing notification for front prevention in advance .

The occurrence frequency is a numerical value such as the number of occurrences or the number of occurrences / the number of cooking executions, and the appropriate timing is when a cooking mode is set, when a cooking menu is set, when a menu is recognized by a sensor, or when a state is determined. Conceivable. The nonvolatile memory is generally an EEPROM or a flash memory.

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

According to the third aspect of the present 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 fourth aspect of the present invention, the coefficient is changed for each type of error, thereby weighting the prior error prevention for each type of error.

[0010] In the invention according to claim 5, the predetermined notification level is changed for each type of error, so that prior error prevention is weighted for each type of error.

[0011]

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

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

According to the third aspect of the present invention, when the heating program ends without any error, the stored frequency of occurrence by type is reduced.

According to the fourth aspect of the present invention, weighting for error prevention is performed for each type of error by the coefficient.

According to the fifth aspect of the present invention, weighting for error prevention is performed for each type of error based on 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 prevention function according to the present invention, wherein 1 is a microprocessor for controlling the entire heating cooker, and 2 is a non-volatile memory composed of an EEPROM. is there. The EEPROM 2 has an error occurrence frequency for each type of error, a coefficient for weighting error prevention, a predetermined notification level for determining whether or not notification for error prevention should be performed, and a notification for error prevention. Setting information as to whether or not to perform is stored.

Reference numeral 3 denotes various sensors for detecting the type of the heating aid and physical changes due to heating. Reference numeral 4 denotes various relays for controlling a heating means (not shown) and blowing means. Reference numeral 5 denotes a power supply for a control circuit. Is a notifying means for giving a notice for preventing errors in advance using characters or voices; and 7, an input means comprising 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.
Alternatively, "notification" is set in the notification necessity setting area of the EEPROM 2 and characters are displayed on the display.

Next, based on the flowcharts of FIGS. 2 and 3, notification control for preventing errors in advance will be described. When the input of the heating start key is detected (S1), the cooking menu to be executed is recognized (S2). 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).
Whether "notification required" occurrence frequency F _X of each type of cooking menu by and errors stored in the error occurrence frequency storage region of EEPROM2 if the has reached the notification level L _X is determined (S4), generated If the frequency F _X is equal to or higher than the notification level L _X , notification of prior error prevention is performed (S5). For example, when the frequency of occurrence of an error in which the food weight exceeds 1 kg at the time of thawing cooking is high, notification is made as to whether the food weight exceeds 1 kg.

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

[0021] If an error occurs, notifying that an error has occurred stops the heating process of updating the Type frequency F _X of errors below (S9 to S13) is performed (S14). Then, the cause of the error is released and the error release key is pressed (S15), and a process corresponding to the type of the error is executed.

To update the occurrence frequency, an error occurrence frequency F _X corresponding to the occurrence error stored in the EEPROM 2 is read (S 9), and the frequency F _{X is set} to the current occurrence number 1 and a weighting coefficient K for the error. _The value multiplied by _X is added (S10), and the value is compared with a preset upper limit value A _{X of the} error (S11). If the value is larger than the upper limit value A _X , the upper limit value A _X is set (S12). , smaller than the upper limit value a _X for writing and storing its value in the EEPROM 2 (13).
Note that the upper limit value A _X is used to prevent a situation in which an error is reported in advance for prevention of an error, and even if heating is completed without an error, the error is prevented in the next or subsequent heating cooking, regardless of the next time. It is for. Without error the cooking control is performed (S17), cooking when finished (S18), the heating is stopped being conducted update processing by type frequency F _X of errors below (S19~S23) is (S24 ).

[0023] The update frequency of occurrence, read the frequency F _X of various error corresponding to the cooking menu of the place that has been stored in the EEPROM2 (S19), by subtracting the current number of occurrences 1 to this frequency F _X (S20 ), as compared with the lower limit value B _X of the error that is set to the value previously (S2
1), it is smaller than the lower limit value B _X a lower limit value B _X (S22),
Larger than the lower limit value B _X for writing and storing its value in the EEPROM 2 (23). Note that the lower limit value _BX is a problem in that, when heating is continuously performed without generating an error, if the user changes or the frequency of occurrence of the error increases, the error is not notified in advance to prevent the error. It is for preventing.

The above is the error prevention notification control. When it is not desired to perform the error prevention notification,
Pressing the notification necessity setting key sets "Notification" to EEP
If it is set in the notification necessity setting area of the ROM 2, it becomes a heating cooker as before.

In the above embodiment, the weighting of error prevention is performed by the coefficient K _X , but is performed by the notification level L _X set for each type of error or by the combination of the coefficient K _X and the notification level L _X. You may.

[0026]

According to the first aspect of the present invention, when the occurrence frequency of each type of error reaches a predetermined notification level, notification for the advance prevention of the error is performed at an appropriate timing, thereby preventing the occurrence of the error. This eliminates the time loss until the user notices that the heating has been interrupted due to an error.

According to the second aspect of the present invention, it is possible to set whether or not to perform notification for error advance prevention, and to use the information reflecting the convenience of the user.

According to the third aspect of the present invention, when the heating program ends without generating an error, the stored occurrence frequency for each type decreases, and when the occurrence frequency of the error decreases, the error is automatically prevented in advance. The notification is not performed, and the product becomes an ideal product in which unnecessary items are eliminated.

According to the fourth aspect of the present invention, since the error is weighted for error prevention according to the type of error by the coefficient, it is easy to provide a range for the weighting.

According to the fifth aspect of the present invention, weighting for error prevention is performed for each type of error based on the predetermined notification level, so that weighting can be easily set.

[Brief description of the drawings]

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

FIG. 2 is a flowchart of 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 symbols]

 DESCRIPTION OF SYMBOLS 1 Microprocessor 2 EEPROM 6 Notification means 7 Input means

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F24C 15/00 A47J 36/00 F24C 7/02 355 F24C 7/04 301 F24C 7/08 345

Claims (5)

(57) [Claims] A notifying means according to claim 1] characters or voice, the error occurrence frequency storage means for storing a cooking device having a nonvolatile memory, a Type error occurrence frequency of the driver misoperation in the memory, When the error occurs
After the start of heating operation by the driver misoperation when Type error occurrence frequency of the raw frequency storage means reaches a predetermined notification level
Error in order to prevent
A heating cooker provided with notification control means for performing notification for advance prevention in advance . 2. A notification necessity setting means for setting whether or not to perform notification for error advance prevention, wherein the notification control is not performed when “notification not set” is set. The heating cooker as described. 3. The heating cooker according to claim 1, wherein an error occurrence frequency storage means is configured to reduce the stored occurrence frequency for each type when the heating program is completed without occurrence of an error. 4. The cooking device according to claim 1, wherein the coefficient is changed for each type of error, and weighted for error prevention in advance 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 weighted to prevent error beforehand for each type of error.