JPS6238721B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention realizes a control system in a heating device that performs timer control or temperature control that automatically notifies the remaining heating time, elapsed heating time, and current temperature of the controlled part by voice at certain intervals during heating operation. It is something to do. BACKGROUND ART Conventionally, a heating device having a digital control unit, such as a microwave oven or an oven, has generally had a main body structure as shown in FIG. A door 2 that can be opened and closed and an operation panel 3 are provided on the front surface of the main body 1, and a keyboard 4 and a display section 5 are arranged on the operation panel 3. The operator of the device instructs the control system about heating time, finishing temperature, output, etc. using the keyboard 4. During the heating operation in the timer control or temperature control mode, the remaining heating time or the current temperature is displayed on the display section 5, so that the operator can check the progress of the heating process by looking at the display section from time to time. When heating is completed, a buzzer or the like will notify you. By the way, in order to successfully heat the object to be heated without failure, it is necessary to occasionally look inside the heating chamber and be careful not to overheat the object. In other words, in the conventional method, heating had to be carried out almost constantly. In view of this background, the present invention realizes a control system in which the remaining heating time, elapsed heating time, and current temperature are automatically notified by voice at certain intervals. The present invention provides a heating device with a small amount of heat. The configuration of the present invention will be explained below with reference to the drawings. FIG. 2 is a block diagram according to the present invention, and FIG. 3 is a circuit diagram showing the same embodiment. Now, in both figures, power supply to the heating source 6 is controlled by timer means or temperature control means 7. TM signal or TEMP
The signal is a control signal for operating this control means 7, and is issued by the controller 8. Specifically, the control means 7 is realized by a semiconductor switch such as a relay 9 or a triax. Now, the controller 8 stores the key input signal taken in from the input means 10 such as a keyboard into the memory 11 using the key strobe signal. This heating time or control temperature data is called again into the controller 8 during the heating operation and becomes basic data for timer control or temperature control. Specifically, the controller 8 is the memory 11
One-chip microcomputer with built-in 12
The keyboard configures a key matrix 13 using key strobe signals S _{0 to 2} , and sends 8-bit key input signals I _{0 to 7} to a microcomputer 1.
Enter into 2. In this embodiment, the key strobe signal is also used as the decimal signal of the display section 5 which is dynamically lit. On the other hand, the controller 8 receives clock pulses from the clock generator 14 to control the timer means 7, and the comparator 1 to control the temperature control means.
The arrival signal is input from 5. Here, comparison section 15
compares the temperature reference signal output from the controller 8 with the temperature measured by the temperature sensor 16 such as a thermistor, and determines whether or not to issue an arrival signal. Specifically, the clock generator 14 is a pulse generator 17 synchronized with the power supply frequency, the comparator 15 is a comparator 18, and the temperature reference signal is a 4-bit binary reference signal REF _{0 to 3} output from the microcomputer 12. Each of these can be realized using a ladder-like D-A converter 19 made of precision resistance. During timer control, the controller 8 reads heating time data from the memory 11 and decrements it in the control register every time a clock pulse from the clock generator 14 is counted. At this time, when the remaining time in the control register becomes a multiple of 1 minute, the remaining time is announced by voice. In other words, when heating for 25 minutes and 30 seconds, when 30 seconds have passed from the start of heating, the
After one minute has elapsed, an announcement of "24 minutes remaining" is made. This audio notification can be performed by the following procedure. Audio data addressed by the voice select signal is stored.

【table】

[Table] An example of speech synthesis for "25 minutes left" is explained. First, as mentioned above, when the remaining time reaches "26 minutes 00 seconds" in the control register in the controller 8,
X′0C′ is output as a voice select signal in hexadecimal format. In the specific example of FIG. 3, this is output as 5-bit binary data to VS _4-0 as '01100'. This voice select signal is decoded into a predetermined address signal by the voice select section 21, and the voice data "later" is read out from the voice memory 20. This voice data is processed by the voice synthesis section 22.
are synthesized, the speaker 23 is sounded as an audio signal, and the audio "Ato" is announced. Note that the voice select signal is a voice strobe signal.
The signal is input to the voice select section by the STB, and a busy signal is output from the voice synthesis section 22 to the controller 8 during voice synthesis. In FIG. 3, these voice select section 21, voice memory 20, and voice synthesis section 22 are realized by one LSI, voice generator 24. Now, when the "later" has been synthesized, the busy signal is released, so the controller 8 monitors this and continues to send the voice select signal X'02.
', X'0A', X'05', X'0F', X'12'
is output with appropriate pauses in between. As a result, following “ato”, “ni”, “jiyuu”, “go”
“Min” and “Desu” are synthesized. Each word is synthesized while counting an appropriate pause time using the internal timer of the controller 8 to improve the connection between the words, so even if the words are synthesized in small pieces, a smooth and easy-to-hear announcement can be obtained. In this embodiment, the procedure for notifying the remaining time every 1 minute has been explained, but of course notification every 5 minutes or 10 minutes can be done in the same way. Minutes have passed”
It is also possible to make announcements such as: For those equipped with a clock function, calculate the heating completion time,
It is also possible to notify this. In this way, at least the control means 7 such as a relay
and the voice generator 24 are connected to the same microcontroller 1.
2, and by inputting clock pulses and temperature sensor signals to this, the remaining time and elapsed time can be voiced in real time without delay, even considering the processing time of the microcomputer, and the content displayed on the display unit 5 can be announced. Accurate and quick notifications can be made without any discrepancies. Furthermore, the voice synthesis section receives voice select signals and voice strobe signals from the microcomputer, starts voice synthesis according to these signals, and outputs a busy signal to the microcomputer during the voice synthesis period, so it can control relays, etc. The means can be controlled by the same microcomputer that controls the speech synthesis section, and the microcomputer can control the control means such as relays without interruption even during speech synthesis that lasts several seconds, making it possible to realize an economical and highly reliable system. Furthermore, no discrepancy occurs between the notification content and the actual control content. Furthermore, the configuration is such that audio data is segmented and stored in voice memory, and then combined to synthesize speech, making it possible to economically provide time and temperature notifications that would require multiple audio announcements using a small amount of memory. can. Next, the procedure for notifying the current temperature during temperature control will be explained. In this case as well, the voice synthesis procedure is the same as in the previous example. In other words, when announcing "It's 125 degrees now", use X' as the voice select signal.
0D', X'0B', X'02', X'0A', X'05
If you output ',
are combined and notified. Now, in order to notify the current temperature, the controller 8 not only simply issues a temperature reference signal corresponding to the set temperature, for example, "230°C" to the comparator 15, but also measures whether the temperature sensor 16 has reached the set temperature. , the temperature reference signal corresponding to the temperature level you want to notify, for example from 250℃.
Sweep and emit the temperature up to 90℃ in 5deg increments. And at this alarm level, temperature sensor 1
If 6 is reached, notification will be made only once at that point. Now, in a heating device that performs timer control or temperature control with such a configuration, there is a control system that automatically notifies the remaining heating time or elapsed heating time and the current temperature of the controlled part by voice at certain intervals during heating operation. It is possible to provide a heating device that does not cause overheating of the object to be heated even if the heating device is not attached to the device. In addition, the remaining time and elapsed time can be voiced in real time without delay, and accurate and quick notification can be made without any lag with the content displayed on the display. Furthermore, since the voice synthesis section is controlled only by the timing of voice synthesis from the microcomputer, even if the control means such as relays and the voice synthesis section are controlled by the same microcomputer, the microcomputer does not control the control means such as relays even during speech synthesis that lasts several seconds. An economical and highly reliable system that can be controlled without interruption can be realized. Moreover, since the audio data is segmented and then linked together, time and temperature notifications that require multiple audio announcements can be economically realized using a small memory capacity.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main body showing a conventional example, FIG. 2 is a block diagram showing an embodiment of the present invention, and FIG. 3 is a circuit diagram thereof. 4...keyboard, 6...heating source, 7...timer means/temperature control means, 8...controller,
11...Memory, 14...Clock generator, 15
... Comparison section, 16 ... Temperature sensor, 20 ... Voice memory, 21 ... Voice selection section, 22 ...
Speech synthesis section, 23...speaker.

Claims (1)

[Claims] 1. A heating source that heats the object to be heated, a timer means or temperature control means that controls power supply to this heating source, an input means that commands the heating time or heating temperature, a display section that displays these, and a heating time A clock generating section that is input to control the temperature sensor or a temperature sensor that inputs the controlled temperature, a voice memory that stores audio data, and an audio system that synthesizes the read audio data and outputs it as an audio signal. It consists of a synthesis section, a speaker that emits a sound based on the audio signal, and a controller including a one-chip microcomputer having at least one built-in memory. The clock generating section or the temperature sensor is connected to this, and the remaining heating time or the current temperature of the controlled section is determined every certain period of time based on the data input from the clock or the temperature sensor. outputs a voice select signal that selects the necessary voice for the voice synthesis section and a voice strobe signal that instructs the start of voice synthesis in order to synthesize these voices without delay and notify the voice synthesis section each time they reach a certain level. The voice synthesis section receives these signals, reads predetermined voice data from the voice memory, synthesizes this into a voice signal, and outputs a busy signal to the microcomputer until the voice synthesis is completed. Furthermore, the voice memory stores audio data necessary for audio notification of time and temperature, subdivided into units, and the microcomputer divides the audio data into units while intermittently monitoring the busy signal. A heating device configured to control the synthesis timing of the voice synthesis section so as to synthesize voice by connecting voice data, and also to control the timer means or the temperature control means in a time sharing manner.