JPS6160325B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronically controlled cooking device that controls food heating under the control of a microcomputer.

In recent electronically controlled cookers, such as microwave ovens, when a desired key is operated on a key operation unit that is equipped with multiple cooking item keys for setting cooking conditions, that key signal is input to a microcomputer. The microcomputer then controls the oscillation of the magnetron to perform the desired cooking. And, most recently, it has been equipped with a sound generator,
When operating a key on the key operation section, a voice command will be given to warn the cook, such as "Wrap the food," which is necessary for cooking based on the key operation, so that the cook will be informed of the precautions as accurately as possible. A microwave oven is being considered.

By the way, in such a microwave oven, if the user fails to hear the initial sound while the sound is being generated by operating a cooking item key, it would be convenient to be able to immediately check the missed sound.

In view of this, the present invention is designed so that, when a new cooking item key is operated while a sound is being generated by operating a cooking item key, the sound generation is immediately stopped and such a sound is generated anew from the beginning. There is something special about what you did.

Embodiments of the present invention will be described below in detail with respect to a microwave oven.

In FIG. 1, 1 is a microwave oven main body in which a heating chamber (not shown) is arranged, 2 is a door, 3 is a speaker, 4 is a display section consisting of Japanese character segments, and 5 is a key operation section. As shown in FIG. 2, a cooking start key and a plurality of cooking item keys for setting cooking conditions are provided. On the surface of each cooking item key, numbers are written consecutively and cooking item names are written.

FIG. 3 shows a circuit diagram of the microwave oven, where 6 is a microcomputer (hereinafter referred to as μCOM) that controls the microwave oven, and 7 is a microwave oscillator that oscillates microwaves to heat food. The oscillation section is supplied with power when the heating signal A is output from the μCOM 6 and oscillates microwaves. The heating signal A is outputted continuously or intermittently based on the key signal from the key operation section 5, thereby performing continuous microwave heating or intermittent heating. Reference numeral 8 denotes a sensor section for detecting the heating state of the food, which is composed of, for example, an infrared sensor that detects infrared rays emitted from the food and outputs a signal according to the temperature of the food. 9 is A- which converts the output of the sensor section 8 into a digital signal.
It is a D converter.

10 is a voice generating section. In the generating part,
11 is ROM (read only memory), and
The ROM stores various precautions for each cooking in the form of audio signals according to each address.
For example, address 2 contains the precautions when making sake cans, ``Please fill the sake brewer until the 8th minute and place it within the infrared detection range of the infrared sensor.''
Address 3 contains instructions for preparing spinach: ``Wrap the spinach tightly and place it within the infrared detection range of the infrared sensor, and after heating, expose it to cold water.''"Let's do it" is memorized. Reference numeral 12 denotes a voice synthesis section, and the synthesis section transfers the address information sent from the μCOM 6 via the bus B to the ROM 11 via the bus B', thereby storing it at the above address in the ROM 11. The audio signal is read in via bus B, and an audio waveform is formed. The synthesis section 12
Further, a reset (RST) signal and a start (STA) signal are sent from the μCOM 6, and the synthesis section 12 outputs a busy (BSY) signal. 13 is a low-pass filter that shapes the audio waveform formed by the synthesis section 12; 14;
is an amplifier that amplifies the audio waveform output from the filter, and audio is generated from the speaker 3 based on the output of the amplifier.

Next, the operation of the above microwave oven is shown in Figures 4 and 5.
This will be explained along with the flowchart of the μCOM6 program shown in the figure.

Normally, a program cycles through S1 and S2 steps. In step S1, when a key is operated on the key operation section 5, 1 is written in the flag K and the key signal is stored in the register KEY, and if it is a signal for a cooking item key, it is sent to that key. The corresponding number is displayed on the display section 4. In step S2, it is determined whether a key operation has been performed based on whether the flag K is 1 or not.

Now, to prepare the spinach, first operate the No. 3 cooking item key. Then, in step S1, 1 is written in the flag K, a signal corresponding to the key is stored in the register KEY, and the display section 4 starts displaying "3". Then, in step S2, flag K is set to 1.
Therefore, it is determined that a key operation has been performed, and the program exits the above-mentioned circular state and reaches step S3. In this step, it is determined whether the operated key is a cooking item key or not based on the contents of the register KEY. In this case, since it is the cooking item key, the process goes to step S4. In this step, flag K is reset and the program continues to the voice routine.

In this voice routine, in the V1 step, the RST signal is instantaneously outputted to reset the voice synthesizer 12 as shown in FIG. 6a. In the following V2 step, the address information 3 corresponding to the key signal stored in the register KEY is transferred to _P1 as shown in FIG. 6b.
Output to the speech synthesis section 12 via bus B is started from this point. In the next step V3, the STA signal is output from point _P2 to the speech synthesizer 12 as shown in FIG. 6C. Then, the speech synthesis section 12 starts inputting the address information 3 sent via the bus B. Then, unless the BSY signal is output from the speech synthesis section 12, the program cycles through the V3 and V4 steps. After inputting the address information 3, the speech synthesis unit 12 outputs a BSY signal as shown in FIG. 6d.
P Start output from ₃ points. Then, the program exits the above-mentioned circular state and proceeds to steps V5 and V6. In the V5 step, the output of the address information 3 to the speech synthesis section 12 is stopped at point _P4 as shown in FIG. 6b. In the V6 step, the STA signal output is the 6th step.
As shown in Figure C, it is stopped at point _P5 . Speech synthesis section 1
2, when this STA signal stops, the input address information 3 is directly transferred to ROM 1 via bus B'.
1, and the audio signal stored at the above address in ROM 11, that is, ``Wrap the spinach tightly and place it within the infrared detection range of the infrared sensor, and after heating, expose it to cold water.'' It reads the audio signal with the content mentioned above and forms the audio waveform. Then, the voice synthesis unit 12 outputs the voice waveform, and the speaker 3 starts producing the voice "Spinach...".

Now, the program has nothing to do with such sound generation.
Immediately after passing the V6 step, the voice routine changes to S1.
Return to step and cycle through steps S1 and S2. After confirming the voice instruction, when the cooking start key is operated on the key operation section, 1 is written in the flag K in step S1, and the signal corresponding to the key is stored in the register KEY. Furthermore, the display section 4
The display remains as "3". Then, in the S2 step, it is determined that a key operation has been performed, so
The program reaches the S3 step. In this case, the operation key is not the cooking item key, so the program is
From S3 step to S5 step. In this step, the output control of the heating signal A is started to start heating the spinach, and when it is determined that the temperature of the spinach has reached the desired temperature based on the output of the sensor section 8, the output control of the heating signal A is stopped. be done.
The program then advances to step S6. In this step, the flag K and the register KEY are reset, and the display on the display section 4 is stopped. The program then returns to step S1 and cycles through steps S1 and S2 to handle the next key operation.

By the way, if you operate the No. 3 cooking item key and miss the initial sound while the sound corresponding to that key is being generated, and you want to immediately check the missed sound, immediately press the No. 3 same cooking item key. Try the operation again. The program then proceeds to the voice routine via steps S3 and S4. Since the voice synthesis section 12 is reset at the _V1 step, the voice generation is stopped midway. Then, through steps _V2 to _V6 , a new voice corresponding to the same cooking item key starts to be generated, such as "Spinach...". The subsequent operation is similar to that described above, and when the cooking start key is operated, desired heating is started.

Thus, according to the electronically controlled cooker of the present invention,
This is extremely convenient because if you miss the initial sound while the sound is being generated by operating a cooking item key, you can immediately check the missed sound.
Furthermore, if you miss the answer, you only need to operate the same cooking item key, so there is no need to provide a separate dedicated key, which can reduce costs.

[Brief explanation of the drawing]

The drawings show a microwave oven according to an embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a front view of a key operation section, FIG. 3 is a circuit diagram, and FIGS. 4 and 5 are a flowchart of a microcomputer program. Figure 6 is a timing chart of signal output. 5...Key operation section, 6...Microcomputer, 7...Microwave oscillation section, 10...Speech generation section.

Claims (1)

[Claims] 1. A heating energy generating means that generates heating energy for heating food, a key operation section provided with a plurality of cooking item keys for setting cooking conditions, and a signal from the key operation section for the desired cooking item key. The electronically controlled cooking appliance is equipped with a microcomputer that controls the heating energy generating means based on the sound source, and further includes a sound generating section, and when the microcomputer inputs a signal of a desired cooking item key from the key operation section, the microcomputer generates the signal. The electronic control is characterized in that the sound generation unit generates a sound corresponding to the sound, and when a new signal of the same cooking item key is input while the sound is being generated, the sound generation is stopped and the same sound is newly generated. Type cooker.