JPH08200702A - Cooker - Google Patents

Abstract

PURPOSE: To prevent a heating from being continued even when a key is kept depressed by performing a setting in such a manner that a key repeat function may become invalid after a cooking start/stop key has performed a cooking- stopping indication. CONSTITUTION: On a control panel of a cooker, a heating procedure input unit 13, heating start/stop key 14 by which the start of a heating and stop of the heating are alternately input, and display unit 12 which displays the control result of those keys and the passed time for a heating, etc., are provided. For example, after a state wherein the heating start/stop key 14 has not been operated for a specified period of time or longer, when the key 14 is operated, a control unit 20 alternately issues a cooking start indication and cooking stop indication. Then, when the key 14 is kept being operated under a state wherein a cooking start indication should be issued, the cooking start indication is issued at first, but by a key repeat function, a cooking stop indication is continuously and immediately issued, and the key repeat function is made invalid, and the cooking stop indication is kept as it is.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooker for starting and stopping cooking with one key.

[0002]

2. Description of the Related Art Recent cookers are generally equipped with a microcomputer, which provides various convenient functions and enables complicated condition setting. The number of input keys must be increased according to the increase in the number of functions and the settable conditions, but if the number of keys is too large, the probability of erroneous operation increases. Therefore,
A method is often used in which one key has a plurality of functions by reducing the number of keys as much as possible and performing an appropriate guide according to the display on the display. With such a key, generally, the function is switched each time the key is operated (pressed) one after another, and the setting conditions are changed. In many cases, it is possible to use the operation type.

[0003]

The same applies to the cooking start key. One key is provided with both functions of starting and stopping cooking. When the key is first operated, the cooking is started, and when the second operation is performed, the cooking is started. There are things that are supposed to stop. However, in the case of such a key, if something is placed in front of the key and the key is pressed and released, heating may continue. On the other hand, it has been proposed that a detachable lid be provided in front of the keyboard panel (Actual No. Sho 55-168108), but the lid must be opened and closed every time a necessary key operation is required. Therefore, there is a possibility that the lid is left open and becomes ineffective.

The present invention has been made to solve such a problem, and an object thereof is to continue heating even if a key is pressed and released in such a case. It is to provide a cooker that eliminates the problem.

[0005]

DISCLOSURE OF THE INVENTION Means for Solving the Problems, Actions and Effects The present invention, which has been made to solve the above problems, provides a cooking device for issuing a cooking start instruction and a cooking stop instruction with a single key for a predetermined time or longer. When the key is operated in a state where is not operated, a cooking start instruction and a cooking stop instruction are alternately issued, and after the cooking start instruction is issued, if the key is continuously operated, It is characterized in that it is set to issue a cooking stop instruction continuously.

In order to alternately issue a cooking start instruction and a cooking stop instruction with one of these keys (hereinafter referred to as a cooking start / stop key), a state in which this key is not operated for a predetermined time or more must intervene. It is natural. However, if it is the turn to instruct to start cooking,
For example, when an object is placed in front of the cooking start / stop key and is pushed and released, or when the key contact is continuously turned on due to the entry of water or the like, heating may be continued. On the other hand, in the cooking device according to the present invention, since the cooking stop instruction is continuously issued also in this case, the heating is immediately stopped.

It is desirable that the cooking start instruction is set not to be issued when the power of the cooking device is turned on and when the keys are continuously operated thereafter.
This prevents the situation where heating is continued even if the above state has been present after the power was turned on.

As a concrete implementation method of the above, for example,
In the above cooking device having a key repeat function that outputs a signal corresponding to the key every predetermined time when the key is continuously operated, the key repeat function is provided after the cooking start / stop key gives a cooking stop instruction. It can be realized by setting so as to be invalid.

That is, if the cooking start / stop key is continuously operated while the cooking start instruction is being issued, the cooking start instruction is first issued, but the cooking repeat instruction is immediately issued by the key repeat function. Issue. Since the key repeat function is disabled after the cooking stop instruction is issued in this way, the state of the cooking stop instruction continues as it is.

[0010]

FIG. 1 is an external view of a cooking device which is an embodiment of the present invention.
FIG. 2 shows its electrical configuration. Cooker 1 of the present embodiment
On the operation panel No. 0, a heating procedure input unit 13 having a plurality of keys for inputting various heating times, heating outputs, etc.
And a heating start / stop key 14 for alternately inputting heating start and heating stop, and a display unit 12 for displaying the result of the operation of these keys, heating elapsed time, and the like. In addition, a control unit 20 that controls the operation of the entire cooking device 10 and a drive unit 21 of a heating source that heats the heating chamber 11 are provided inside. The control unit 20 is composed of a microcomputer, and performs a predetermined operation such as giving a heating drive signal to the heating source drive unit 21 in response to a key operation signal from each key of the heating procedure input unit 13 or the heating start / stop key 14. At the same time, the result of those key operations and the guide to the operator are displayed on the display unit 12.

The control unit 20 is provided with a ROM (not shown), and the ROM stores a program which operates according to the procedure of FIGS. 3 and 4. When the power of the cooking device 10 is turned on, the flowchart of FIG. 3A is executed. This process will be described step by step.

First, all keys are initialized (step S1). Specifically, as shown in FIG. 3B, the KE flag is set to "0" (step S21), the count number corresponding to 50 msec is substituted into the KCH counter (step S22), and the REPEAT flag is set to ""0" is substituted (step S23). The KE flag is a flag for testing whether or not all key operations have been performed for a predetermined time, and the KCH counter is a timer for removing on-chattering or off-chattering of the key switch. The REPEAT flag is a flag for giving a repeat function to the key when it is "1" and stopping the repeat function when it is "0".

After initializing the key in step S1, the key input is checked (step S2). Figure 4
Will be described in more detail. First, the presence / absence of a key operation is checked (step S31). If there is any key operation, the process proceeds to step S37, but if no key operation is performed, the REPEAT flag is set to "0" in step S32. This is a procedure for stopping the repeat function once the key is released.

If there is no key operation, then the KE flag is tested (step S33). If this is "1", the process proceeds to step S46 and the count number corresponding to the time 50 msec is substituted into the KCH counter. If the KE flag is "0", the KCH counter is decremented by 1 in step S34 (step S34). When KCH = 0 as a result of this subtraction (step S35), the KE flag is set to 1 (step S36), and then the process proceeds to step S46, and the count number corresponding to time 50 msec is substituted into the KCH counter. . By these processes, the KE flag is set to "1" when the state where no keys are operated continues for a time of 50 msec (KCH). As a result, when the next key operation is performed, the key code can be issued (steps S37 → S42 to S45 described later).

If there is any key operation in step S31, the KE flag is tested in step S37. KE
If = 1, the process proceeds to step S42, and the KCH counter is decremented by 1. If KCH = 0 as a result of this subtraction (step S43), the KE flag is set to "0" (step S44), and a key code corresponding to the operated key is generated (step S45). This is to prevent chattering.

If KE = 0 in step S37, the REPEAT flag is tested (step S38).
If REPEAT = 1, the RPTCNT counter is decremented by 1 (step S39). As a result, when RPTCNT = 0, the RPTCNT counter is set to a count number corresponding to time 0.5 sec (steps S40 → S41) and then the process proceeds to step S45 to generate a key code corresponding to the operated key. To do. By these processes, the repeat function that a key code corresponding to the key is generated every 0.5 sec (RPTCNT) while the key operation is continued is realized. The above is the details of the key input processing.

Returning to the state immediately after the power of the cooking device 10 is turned on, the description will be made. In this case, both the KE flag and the REPEAT flag are set to "0" by the key initialization processing of FIG. 3 (b). Therefore, in the flowchart of FIG. 4, the sequence proceeds from step S31 to S37 to S38 to S46, and no key code is generated. That is, immediately after the power is turned on, the key code is not generated unless all the keys are released once, and the key repeat function does not work.

After performing the key input process to obtain the key code in step S2, it is tested whether the key input is from any key of the heating procedure input section 13 (step S3). If so, the corresponding heating procedure is set (step S4). If the input key is not from the heating procedure input section 13, then it is tested whether or not it is from the heating start / stop key 14 (step S5). Heating start / stop key 14
If not, the process returns to step S2 to repeat the key input process.

When the heating start / stop key 14 is pressed, the process proceeds from step S5 to step S6 to test whether the heating procedure is set. If no heating procedure is set, a default heating procedure (warming course) is set in step S7, and the process proceeds to step S8. If some heating procedure is set (by step S4), the process directly proceeds to step S8.

In step S8, the REPEAT flag is set to "1", and in step S9, the RPTCNT counter is set to a count number corresponding to 0.5 seconds. Then, a heating start signal is sent to the heating source drive unit 21 (step S10) to start heating in the heating chamber 11. Then, it is tested whether or not the cooking should be ended by the default heating procedure set in step S4 or adopted in step S7 (step S11). Return to S1. If the time to end the processing has not been reached yet, the flow advances to step S12 to perform the key input processing (FIG. 4) again.

The REPEAT flag was "0" in the key input processing in step S2 immediately after the power was turned on, but in step S12, the repeat function is activated because the REPEAT flag is "1" in step S8. Therefore, if the heating start / stop key 14 is continuously operated, the key code of the heating start / stop key 14 is changed again after 0.5 seconds (RPTCNT) through steps S31 → S37 to S41 → S45 → S46 in FIG. appear. Then, step S1
In step 3, since it is determined that the heating start / stop key 14 is pressed, the heating source is turned off in step S14.
At the same time, the REPEAT flag is set to "0" in step S15. Next, the key input process is performed again (step S16), but the heating start / stop key 1
If 4 is continuously pressed, the REPEAT flag is set to "0" here, so in the process of FIG.
No key code is generated in the order of 1 → S37 → S38 → S46, it is determined in the test of step S17 that the heating start / stop key 14 is not pressed, and only steps S16 and S17 are repeated.

That is, if the heating start / stop key 14 is continuously pressed, the heating starts at first, but 0.5 sec.
After that, the heating is stopped, and then the heating start / stop key 14 is left as it is until it is released. For this reason, even if the heating start / stop key 14 is pressed and released due to something placed in front of the operation panel, the cooker 1
When 0, heating is not continued and it is safe.

[Brief description of drawings]

FIG. 1 is an external view of a cooker that is an embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of the cooking device according to the embodiment.

FIG. 3 is a flowchart (a) of a processing procedure of a control unit of the cooking device according to the embodiment and a flowchart (b) of key initialization processing.

FIG. 4 is a flowchart of key input processing.

[Explanation of symbols]

 10 ... Cooker 11 ... Heating Chamber 12 ... Display 13 ... Heating Procedure Input 14 ... Heating Start / Stop Key

Claims (3)

[Claims] 1. A cooking device which issues a cooking start instruction and a cooking stop instruction with one key, and when the key is operated in the state where the key is not operated for a predetermined time or more, the cooking start instruction and the cooking are performed. A cooker characterized in that it is set to issue a cooking stop instruction continuously when the key is continuously operated after issuing a cooking start instruction. 2. The cooking device according to claim 1, wherein the cooking start instruction is set not to be issued when the cooking device is powered on and when the key is continuously operated thereafter. 3. The cooking device according to claim 1, further comprising a key repeat function that outputs a signal corresponding to a key every predetermined time if the key is continuously operated. A cooker characterized by being set so that the key repeat function is disabled after a stop instruction is given.