JPS6024599A - Heater - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a heating device equipped with a voice recognition device.

Conventional Structure and Problems Conventionally, in heating devices equipped with voice recognition means, such as microwave ovens, the user records in his/her own voice the words related to the operation, the name of the menu, etc. The machine operated the microwave oven and set the cooking program by saying the registered words and using voice recognition to operate the microwave oven and set cooking programs. The cooking program, that is, heating data such as heating output and heating time related to cooking, is stored in advance in read-only memory, etc.
It can be read out using the code corresponding to the voice-recognized menu name.

By the way, in the case of voice recognition, it is not known when and at what timing the words to be recognized will come from the microphone, so it is necessary to constantly check the input signal. As a result, even when no one is near the electronic sink, it processes noises such as doors opening and closing, which can easily cause malfunctions.

Therefore, a sensor was installed on the front of the microwave oven to detect a human body, and a microphone was turned on only when the sensor detected a human body.

However, with the above configuration, it is fine when the person is in front of the microphone, but when the person moves from the front to the left or right, the input signal, the audio signal, becomes smaller due to the microphone's directivity, causing malfunctions or the audio signal This method has the problem of being inconvenient to use because it requires standing directly in front of the microphone to make the input easier.

OBJECTS OF THE INVENTION In view of the above drawbacks, the present invention provides a heating device that does not malfunction and is easy to use.

Structure of the Invention In order to achieve the above object, the heating device of the present invention is provided with human body detection means having a plurality of sensors for detecting a human body on the front surface of the heating device, and further provided with a plurality of microphones respectively corresponding to the plurality of sensors. The structure is as follows.

With this configuration, when a sensor detects a human body, only the microphone corresponding to that sensor is turned on.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view of a heating device in an embodiment of the present invention.

In the figure, 1 is the main body of the heating device, 2 is a door that can be opened and closed,
Reference numeral 3 denotes an operation panel provided on the front side of the heating device main body 1.The operation panel 3 includes a keyboard group 4, an output display group 5, a time display, a microphone 7.8, a registration key 9, a menu display group 10. Human body detection sensors 11 and 12 and a ready display section 13 are arranged. Furthermore, microphone 7.8 and human body detection sensor 11.1? ! are connected in a one-to-one correspondence.

The user of the heating device is "H" in output display group 5.

After selecting the heating output by pressing one of rM-HJ', rMJ, rM-Lj, rLJ, rWJ, press keyboard group 4.
o, rloMJ, rlMJ, rlosJ.

Press the “1S” key to set the heating time, and then press the “5TAJ” key.
Press the key to start heating. This is animal heating, and depending on the heating menu, two or more stages can be set.

Next, in the case of automatic heating, the word corresponding to the heating menu,
That is, when a menu name is inputted through the microphone 7.8, the menu display group 10 lights up, a complicated heating sequence is automatically set, and heating starts simply by saying "start" into the microphone 7.8.

Next, in the case of audio registration, press the registration key 9 to enter the registration mode, from "10M" to "1S", and from "H" to rWJ.
,,rcLR'', l'-8TAJ, and words corresponding to the many display group 1o are registered in order. At this time,
The two digits on the left of the time display section 6 indicate the number of registered words.

For example, if rHJ is registered, the time display section 6 will be 05.
Therefore, when registering by saying "HI gh", the result becomes 06 and the next l'-M-HJ registration mode is entered. Once all words have been registered in this way, the device automatically enters recognition mode, and operations can be performed using voice recognition.

Here, in either case of recognition or registration, when the user approaches in front of the heating device 1, the human body detection sensor 11 or 12
detects a human body, the microphone 7 or 8 corresponding to the detected human body detection sensor 11 or 12 is turned on, voice recognition is enabled, and the ready display section 13 lights up.

FIG. 2 is a block diagram of a heating device in an embodiment of the third invention. Components that are the same as those in FIG. 1 are given the same numbers and their explanations will be omitted.

In FIG. 2, reference numeral 14 denotes a heating source, which is controlled by an output control means 15 to provide a predetermined output and a heating time 25. The output control means 16 is controlled by a signal issued by a microcomputer (hereinafter referred to as microcomputer) 16. Reference numeral 17 denotes an input means for inputting information desired by the user into the microcomputer 16. Reference numeral 18 denotes a display means for displaying time and the like based on signals generated from the microcomputer 16.

Reference numeral 19 denotes voice recognition means including a microphone 7.8 and a voice input section 20. Feature parameter extraction unit 21, parameter comparison unit 2
2. It is composed of a parameter memory 23. The audio input unit 20 amplifies the audio signal input from the microphone 7 or 8, and the feature parameter extraction unit 21 extracts phonetic features included in the audio signal and converts it into digital data, such as a filter bank. , a frequency spectrum analysis circuit using an analog multiplexer, an AD converter, etc. can be easily realized. Parameter comparison section 2
2 is a feature parameter group of various audio words registered in advance in the parameter memory 23 and a feature parameter extraction unit 21
The distance from the manually input feature parameter of the unknown voice is divided, and if the minimum value of this distance is less than the threshold, the word corresponding to the feature parameter is represented as a recognition result and output to the microcomputer 16 in binary code. 1, if there is no word for which the minimum distance value is less than or equal to the threshold value, either output is output or a reject code is output.

The human body detection means 24 includes a human body detection sensor 11 and an amplification section 25, and when a human body is detected, outputs a human body detection signal to the parameter comparison section 22 of the voice recognition means 19. The human body detection sensor 11 can be easily constructed by using a pyroelectric infrared sensor or an ultrasonic sensor. 26 is also a human body detection means, which is composed of a human body detection sensor 12 and an amplification section 27.

The ready display section 13 lights up in response to a ready signal from the parameter comparison section 22 of the voice recognition means 19, and the ready signal indicates that either one of the human body detection signals from the human body detection means 24 or 26 is output to the parameter comparison section 22. Output only when Furthermore, while the parameter comparison section 22 is processing the audio signal, it turns off the ready signal and turns off the ready display section 13, and when the processing is completed and becomes ready for reception, it outputs the ready signal and turns on the ready display section 13. By doing so, the user can input voice at the correct timing. Furthermore, human body detection sensor 11=1. Since the human body is detected by the microphone 7 or 12 and the corresponding microphone 7 or 8 is turned on, the human voice can be input more accurately than before, eliminating malfunctions.

In this embodiment, two human body detection sensors 11.12 and two microphones 7.8 are provided, but even more effects can be obtained by providing a plurality of each.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) Since only one microphone is turned on when a person is in front of the heating device, power can be saved.

(2) Since the microphone closest to the person is turned on, the voice can be input accurately and malfunctions will not occur. (3) Since the detection range of the sensor is wider than in the past, it is no longer necessary to go near the front of the heating device, which improves usability.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a heating device according to an embodiment of the present invention, and FIG. 2 is a block wiring diagram thereof. 7.8...Microphone, 11,12...
・・Human body detection sensor, 14・・Heating source, 16・
...Micro converter, 17...Input means, 18...Display means, 19...
Voice recognition means, 20... Voice input section, 21...
... Feature parameter extraction section, 22 ... Parameter comparison section, 23 ... Parameter memory, 2
4.26...Human body detection means.

Claims (2)

[Claims] (1) A heating source that heats an object to be heated, a microcomputer that controls the heating source, an input means that instructs the microcomputer to output, heating time, etc., and output and heating based on the instructions of the microcomputer. A display means for displaying time, etc., a voice recognition means consisting of a plurality of microphones, a voice input section, a feature parameter extraction section, a parameter comparison section, a parameter memory, and a plurality of sensors installed in front of the heating device detect the presence or absence of a human body. A heating device comprising a plurality of human body detection means for sensing and controlling the operation of the voice recognition means, wherein the plurality of microphones and the plurality of human body detection means correspond to each other. (2) The heating device according to claim 1, wherein, in response to human body detection signals from the plurality of human body detection means, the corresponding I) 0 microphone is turned on to enable voice reception.