JP6841419B2 - Stove - Google Patents

Description

The present invention relates to a stove.

In a stove equipped with a burner, recognizing the user's voice command and performing control according to it is effective, for example, when the hand cannot be released during other work or when the hand is dirty and difficult to operate. .. In the sound signal control type stove described in Patent Document 1, a sound signal control unit is attached to the control unit. The sound signal control unit recognizes a memory that stores at least one control sound signal corresponding to a predetermined operation of the heater, a sound signal input unit, and a sound signal recognition unit that recognizes the input sound signal. It is composed of a sound signal matching unit that collates the sound signal with the control sound signal in the memory. When a sound is input, when the sound signal recognized by the sound signal recognition unit and the stored sound signal match in the collation by the sound signal matching unit, the control unit operates the burner in response to the sound signal. Control.

Japanese Patent No. 4313495

If the sound signal recognition unit makes a mistake in recognizing the sound signal, an unintended operation may be performed without permission, so that the sound signal must be recognized carefully. For example, when two or more burners are ignited and only the thermal power of a specific burner in them is changed, the voice instruction of the user becomes more complicated, and there is a high possibility that the voice instruction is erroneously recognized. Therefore, it was difficult to deal with the control that needs to be performed immediately, such as reducing the fire.

An object of the present invention is to provide a stove capable of reducing erroneous recognition of voice instructions and improving safety.

The stove according to claim 1 of the present invention is a stove provided with a control unit that receives a voice instruction from the outside and controls the operation of a plurality of burners based on the content of recognizing the received voice instruction. The control unit receives and recognizes the first voice instruction for instructing the thermal power operation of the burners when at least two or more of the plurality of burners are in the ignition state, and the first recognition means. When the first voice instruction is recognized, the weak heat adjusting means for weakening the thermal power of all the burners in the ignition state, and when the first recognition means recognizes the first voice instruction, in the ignition state. The original thermal power storage means for storing the original thermal power information which is the information of the original thermal power before weakening the thermal power of the burner, and the target of the thermal power operation after the first recognition means recognizes the first voice instruction. A second recognition means that receives and recognizes a second voice instruction for identifying a target burner, a specific means that identifies the target burner based on the second voice instruction recognized by the second recognition means, and the above. Other than the thermal power adjusting means for adjusting the thermal power of the target burner specified by the specific means based on the thermal power operation indicated by the first voice instruction recognized by the first recognition means, and the target burner specified by the specific means. Further, it is provided with a thermal power return means for returning the thermal power of another burner whose thermal power is weakened by the low thermal power adjusting means to the original thermal power based on the original thermal power information stored in the original thermal power storage means. It is characterized by.

In addition to the configuration of the invention according to claim 1, the stove of the invention according to claim 2 has the control unit.
When at least two or more of the plurality of burners are in the ignition state, the first announcement information output means for outputting the first announcement information prompting the first voice instruction and the first recognition means are the first voice. It is preferable to provide a second announcement information output means for outputting the second announcement information prompting the second voice instruction when the instruction is recognized.

The stove of the invention according to claim 3 may be a voice instruction for instructing a fire extinguishing operation of the burner, in addition to the configuration of the invention according to claim 1 or 2.

According to the stove of the invention according to claim 1, receiving a voice instruction from a user and controlling a plurality of burners according to the voice instruction is performed, for example, when the hand cannot be taken off during other work or when the hand is dirty. It is effective when it is difficult to do so. The stove is provided with a plurality of burners, but when two or more burners are ignited, it may be desired to adjust only the thermal power of a specific burner. In that case, in the present invention, after first receiving the first voice instruction instructing the thermal power operation of the burner, the target burner to be operated by the thermal power is specified, and the thermal power operation of the specified target burner is performed. That is, since the voice instruction of the user is recognized separately as the voice instruction of the thermal power operation and the voice instruction of the place, each voice instruction is a short sentence as compared with the long voice instruction of specifying the thermal power operation and the place at once. Therefore, it is possible to reduce erroneous recognition of voice instructions. At this time, the control unit further weakens all the thermal power of the burner in the ignited state from the time when the instruction of the thermal power operation is received until the target burner is specified. As a result, it is possible to sufficiently cope with the case where the thermal power of the target burner needs to be weakened immediately, so that the safety can be improved. The "voice instruction" may be, for example, a voice instruction issued by a human being, or a voice instruction that can be output by a machine, a tool, or the like. The "thermal power operation" is an operation of changing the thermal power of the burner, and in the present embodiment, means an operation of high thermal power, medium thermal power, low thermal power, or an operation of extinguishing a fire.

According to the stove of the invention according to claim 2, in addition to the effect of the invention according to claim 1, since it is possible to give an interactive voice instruction, it is possible to urge the user to give an appropriate voice instruction. The first announcement information and the second announcement information may be any information that can prompt the user to give the first voice instruction and the second voice instruction. For example, the voice, the image, the character, the figure, and the mark displayed on the display unit are used. And so on.

According to the stove of the invention according to claim 3, in addition to the effect of the invention according to claim 1 or 2, the first voice instruction is a voice command instructing a fire extinguishing operation of the burner. The fire extinguishing operation is an operation that needs to be performed immediately, and it is desirable to at least reduce the thermal power promptly. According to the present invention, the thermal power of all the burners in the ignited state can be temporarily weakened from the time when the instruction of the fire extinguishing operation is received by the first voice instruction until the target burner is specified. As a result, the operation of the thermal power to weaken the thermal power is not delayed from the actual operation, so that the safety can be maintained.

The inventions of claims 1 to 3 described above can be arbitrarily combined. For example, not all or part of claim 1 may be provided, but at least one of the other claims 2 and 3 may be provided. However, in particular, it is preferable that the configuration of claim 1 is provided and the configuration and combination of at least one of claims 2 and 3 are provided. Any component of claims 1 to 3 may be extracted and combined. The applicant intends to obtain a patent right for such a structure as well.

It is a perspective view of the stove 1. It is a block diagram which shows the electric structure of a stove 1. It is a flowchart of voice operation control processing. It is a flowchart which shows the continuation of FIG. It is a state transition diagram which shows an example of voice operation control. It is a figure which shows the state which the explanation screen 101 is displayed on the display part 22. It is a figure which shows the state which the explanation screen 102 is displayed on the display part 22.

Hereinafter, embodiments of the present invention will be described. Unless otherwise specified, the structure, flowchart, and the like of the apparatus described below are not intended to be limited thereto, but are merely explanatory examples. The drawings are used to illustrate the technical features that can be adopted by the present invention. In the following description, the left and right, front and back, and top and bottom indicated by arrows in the figure are used.

The structure of the stove 1 will be described with reference to FIG. The stove 1 is a built-in stove. A top plate 3 is installed on the upper surface of the stove 1. In the top plate 3, a right stove burner 4 is provided on the right front side, a left stove burner 6 is provided on the left front side, and a back stove burner 5 is provided on the center back side. At the center of each stove burner 4 to 6, a sensor assembly 20 that comes into contact with the bottom of the pot and detects the temperature of the cooking pot is provided. The sensor assembly 20 is provided so as to be able to move in and out in the vertical direction, and houses the thermistor 40 (see FIG. 2). A thermocouple 50 (see FIG. 2) for detecting a misfire and an igniter 60 (see FIG. 2) for igniting are provided in the vicinity of the stoves 4 to 6. An exhaust port 7 of a grill storage (not shown) installed in the stove 1 is provided at the rear portion of the top plate 3. A rectangular display portion 22 is provided at a substantially central portion on the front side of the upper surface of the top plate 3. The display unit 22 is, for example, a liquid crystal. The display unit 22 displays a setting screen (not shown) of the stove 1, explanatory screens 101 and 102 (see FIGS. 6 and 7) at the time of voice operation, which will be described later.

A grill door 8 is provided at substantially the center of the front surface of the stove 1. The grill door 8 is movably supported toward the front side, and opens and closes an opening on the front side of the grill storage (not shown) provided inside the stove 1. A grill burner (not shown) is provided in the grill chamber. A thermocouple 50 and an igniter 60 are also provided in the vicinity of the grill burner. In the area on the right side of the grill door 8, operation buttons 11 to 13 having a circular front view are provided in a horizontal row in order from the right side to the left side. Also in the area on the left side of the grill door 8, the operation buttons 14 having the same circular shape are provided at the same height positions as the operation buttons 11 to 13.

The operation button 11 is the right stove burner 4, the operation button 12 is the back stove burner 5, the operation button 13 is the left stove burner 6, and the operation button 14 is pressed to ignite and extinguish the grill burner. The operation buttons 11 to 14 are substantially flush with the front surface of the stove 1 when the corresponding burner is extinguished (see FIG. 1). When pressed for ignition, the control circuit 70, which will be described later, executes the ignition process for the corresponding burner, and the known push-push mechanism (not shown) allows the operation buttons 11 to 14 to be pressed from the front surface of the stove 1. It protrudes forward in a substantially columnar shape, and the rotation operation is possible in the protruding state. When the operation buttons 11 to 14 are rotated, the control circuit 70 adjusts the gas supply amount to the corresponding burner so that the gas amount corresponds to the rotation operation amount.

Inside the stove 1, four gas amount adjusting mechanisms 30 (see FIG. 2) are provided. The gas amount adjusting mechanism 30 adjusts the gas supply amount to the corresponding stove burners 4 to 6 and the grill burner. The gas amount adjusting mechanism 30 includes a valve mechanism portion 31 and a motor 32. The valve mechanism 31 includes various valves such as a needle valve and a solenoid valve that adjust the amount of gas flowing through the gas flow path, for example. The motor 32 drives the valve of the valve mechanism unit 31 to adjust the gas flow rate flowing through the gas flow path. The drive of the motor 32 is controlled by the control circuit 70.

When the operation buttons 11 to 14 are pushed in and projected toward the front, the control circuit 70 energizes the motor 32 of the gas amount adjusting mechanism 30. As a result, the valve mechanism portion 31 is driven and the gas flow path is opened, so that gas is supplied to the corresponding burner. Then, the control circuit 70 rotates the motor 32 in the forward and reverse directions according to the rotation direction and the rotation angle of the operation buttons 11 to 14, and adjusts the opening degree of the valve in the valve mechanism unit 31. As a result, the amount of gas flowing through the gas flow path is adjusted, so that the thermal power of the corresponding burner is adjusted. Further, when the operation buttons 11 to 14 are pushed into the stove 1 and accommodated, the control circuit 70 rotates the motor 32 in the reverse direction. As a result, the valve of the valve mechanism portion 31 is driven in the opposite direction, and the gas flow path is closed, so that the supply of gas to the corresponding burner is cut off.

A power button 25 is provided directly above the operation button 11. A hole 17 penetrating the panel on the front surface of the stove 1 is provided obliquely to the upper left of the operation button 14, and the microphone 76 is provided so as to face the hole 17 from the inside of the stove 1. The stove 1 of the present embodiment has a voice operation function. The voice operation function is a function that receives a user's voice instruction with the microphone 76, identifies the content of the voice instruction by performing voice recognition, and enables the thermal power operation of the target burner. The voice instruction is an operation instruction such as a thermal power given to the stove 1 by voice. The voice operation control process (FIGS. 3 and 4) for realizing the voice operation function will be described later.

The electrical configuration of the stove 1 will be described with reference to FIG. The stove 1 includes a control circuit 70. The control circuit 70 includes a CPU 71, a ROM 72, a RAM 73, a non-volatile memory 74, and the like. The CPU 71 controls various operations of the stove 1 in an integrated manner. The ROM 72 stores various programs such as a voice operation control program. The voice operation control program executes the voice operation control process (see FIGS. 3 and 4) described later. The RAM 73 temporarily stores various types of information. The non-volatile memory 74 stores various data such as acoustic model data for voice recognition and burner thermal power information in addition to various parameters for temperature control control. The burner thermal power information is information in which the rotation angle of the output shaft of the motor 32 is associated with the burner thermal power. In the present embodiment, the thermal power from small to large is divided into 10 stages of 1 to 10, and the rotation angle of the motor 32 is assigned to each stage. Thereby, the CPU 71 can specify the corresponding burner thermal power based on the rotation angle of the output shaft of the motor 32.

The control circuit 70 includes a power supply circuit 81, a thermistor input circuit 82, a thermocouple input circuit 83, an igniter circuit 84, an operation panel 24, a motor control circuit 85, a voice input circuit 86, a voice output circuit 87, a buzzer circuit 88, and display control. The circuit 89, the sensor 19, and the like are electrically connected to each other. When the power button 25 is pressed by the user, the power supply circuit 81 steps down the alternating current (for example, 100V) supplied from the power supply 23 to a direct current (for example, 5V), rectifies it, and supplies electric power to various circuits. Therefore, the power of the stove 1 is turned on. When the power button 25 is pressed again by the user, the power supply circuit 81 cuts off the power supply to various circuits. Therefore, the power of the stove 1 is turned off.

The thermistor input circuit 82 inputs a detection signal from the thermistor 40 stored in the sensor assembly 20 provided in each burner to the control circuit 70. The thermocouple input circuit 83 inputs the detection value (signal corresponding to the thermoelectromotive force) from the thermocouple 50 to the control circuit 70. The igniter circuit 84 drives the igniter 60 of the corresponding burner based on the control signal from the CPU 71. The operation panel 24 is housed in a lower right portion of the front panel of the stove 1, and is pulled out toward the front side by pushing the portion. The operation panel 24 receives inputs such as timer setting by the user and selection of thermal power control according to the cooking menu, and inputs the input signal to the control circuit 70. The motor control circuit 85 controls the drive of the motor 32 of the four gas amount adjusting mechanisms 30 based on the control signal from the CPU 71.

The audio input circuit 86 converts the analog signal of the audio collected by the microphone 76 into a digital signal and inputs it to the control circuit 70. The audio output circuit 87 converts an audio digital signal into an analog signal based on the control signal from the CPU 71, and outputs the audio to the speaker 77. The buzzer circuit 88 drives the piezoelectric buzzer 78 based on the control signal of the CPU 71. The display control circuit 89 displays various screens on the display unit 22 based on the control signal from the CPU 71. The sensors 19 are provided on the operation buttons 11 to 14 respectively, detect the rotation direction and the rotation angle of the operation buttons 11 to 14, and input the detection signal to the control circuit 70. Based on the detection signal from the sensor 19, the CPU 71 rotates the output shaft of the motor 32 so as to correspond to the rotation direction and the rotation angle of the operation buttons 11 to 14, and drives the valve mechanism unit 31. As a result, the amount of gas flowing through the gas flow path is adjusted, and the thermal power of the corresponding burner is adjusted.

The gas amount adjusting mechanism 30 is provided with a position meter 35. The position meter 35 detects the rotation angle of the output shaft of the motor 32, and inputs the detection signal to the control circuit 70. Since the CPU 71 can recognize the rotation angle of the output shaft of the motor 32 based on the detection signal from the position meter 35, the corresponding burner thermal power can be specified by referring to the burner thermal power information stored in the non-volatile memory 74.

The principle of the voice recognition function of the stove 1 will be briefly described. For voice recognition, a well-known voice recognition technique can be used. For example, it is preferable to perform matching (collation) between the "acoustic model data" stored in the non-volatile memory 74 and the input audio signal (waveform). "Acoustic model data" means a speech word dictionary created based on average pronunciation data. For matching, for example, a theory called "HMM (Hidden Markov Model)" may be used. Matching is usually performed in units of 10 to 20 milliseconds, starting from the beginning of the word. The voice recognition technology may be other technology.

The voice operation control process will be described with reference to FIGS. 3 to 7. When the user presses the power button 25 of the stove 1 and power is supplied from the power circuit 81 to the control circuit 70, the CPU 71 reads the voice operation control program from the ROM 72 and executes this process. In the present embodiment, for convenience of the following description, the right stove burner 4, the left stove burner 6, the back stove burner 5, and the grill burner are referred to as a right stove 4, a left stove 6, a back stove 5, and a grill, respectively.

As shown in FIG. 3, the CPU 71 makes initial settings (S1). In the initial setting, the CPU 71 initializes the set values required for various processes. Next, the CPU 71 determines whether or not any of the burners of the right stove 4, the left stove 6, the back stove 5, and the grill is ignited (S2). The CPU 71 returns to S2 and waits until any of the burners is ignited (S2: NO). When any of the burners is ignited (S2: YES), the CPU 71 identifies the ignited burner based on the detection signal from the thermocouple 50 (S3), and uses the information of the igniting burner as the ignition burner information. Store in RAM 73.

Next, the CPU 71 outputs an ignition guidance voice (S4). For example, when the right stove 4 is ignited, the voice "The right stove has been ignited" is output from the speaker 77. As a result, the user can recognize that the right stove 4 has been ignited. After that, even when another burner is ignited and a plurality of burners are in the ignition state, the CPU 71 identifies the ignited burner based on the detection signal from the thermocouple 50 and stores it in the RAM 73 as ignition burner information. To do.

Next, the CPU 71 outputs a voice explaining the start of the voice operation from the speaker 77 in order to inform the user of the method of starting the voice operation (S5). For example, the CPU 71 outputs a voice message "To start the voice operation, say" Start voice operation "" from the speaker 77. The CPU 71 accepts the start of the voice operation (S6). When the user performs a thermal power operation or the like by voice instruction for the ignited burner, the user speaks to the stove 1 "start voice operation". The user's voice is collected by the microphone 76, converted from the analog signal of the voice to the digital signal by the voice input circuit 86, and input to the control circuit 70. The CPU 71 performs voice recognition processing by matching the converted voice digital signal with the sound data of "start voice operation".

As a result of the voice recognition process, the CPU 71 determines whether or not the user's voice instruction is recognized as "start of voice operation" (S7). For example, if it is not recognized as "start of voice operation" or recognition fails (S7: NO), the CPU 71 returns to S6, receives a voice instruction from the user again, and performs voice recognition processing. If the voice operation is not performed, the user does not say "start voice operation", so even if another voice is collected from the microphone 76, the CPU 71 does not recognize "start voice operation" (S7: NO). ). Therefore, the voice operation is not started.

As a result of the voice recognition process, when the user's voice collected by the microphone 76 is recognized as "voice operation start" (S7: YES), the CPU 71 starts the voice operation (S8) and the voice of the voice operation start guidance. Is output (S9). The CPU 71 outputs, for example, a voice "Start voice operation" from the speaker 77. As a result, the user can recognize that the voice operation has been started on the stove 1.

Next, in order to inform the user of the thermal power operation that can be performed on the stove 1, the CPU 71 outputs the first announcement voice from the speaker 77 (S10). The first announcement voice is a voice explaining the thermal power operation. The CPU 71 outputs, for example, the first announcement voice "Please select one from high fire power, medium fire power, low fire power, extinguish fire, and end voice operation and give a voice instruction." It should be noted that the thermal power operation that can be performed at present includes "end of voice operation", which is effective when it is desired to switch from voice operation to manual operation in the middle.

At the same time, the CPU 71 displays the explanation screen 101 (see FIG. 6) on the display unit 22 (S10). On the explanation screen 101, the items of the thermal power operation that can be performed at present are displayed in a list with the same contents as the output first announcement voice. As a result, the user can recognize the thermal power operation that can be performed at present by both voice and display, so that the word of the voice instruction can be clearly recognized. Therefore, the stove 1 can prevent the user from issuing a voice instruction with an erroneous word.

In addition, during cooking, there are noises of various factors such as the sound of oil when frying ingredients in a frying pan, the sound of a ventilation fan, and the sound of cooking utensils hitting each other. There is a possibility that the voice alone may be missed, or even if it is heard, it may be forgotten later. However, in the present embodiment, the first announcement voice is output from the speaker 77, and the explanation screen 101 is displayed on the display unit 22. As a result, even if the explanation output by the first announcement voice is overlooked, it can be confirmed on the explanation screen 101 displayed on the display unit 22. Further, since the words of the thermal power operation that can be performed at present can be clearly displayed on the explanation screen 101, the user can speak with accurate words to the stove 1. Therefore, the possibility of erroneous recognition can be reduced.

The CPU 71 accepts the thermal power operation by voice instruction (S11). The user selects one thermal power operation to be performed on the burning burner from the thermal power operations notified by voice and display, and speaks to the stove 1. The CPU 71 performs voice recognition processing for the voice instruction of the user's thermal power operation.

Here, for example, the state A shown in FIG. 5 is assumed. In the state A, the left stove 6, the back stove 5, and the grill are all ignited, and the right stove 4 is extinguished. In such a state A, when it is desired to extinguish only the grill being ignited, the user speaks to the stove 1 "fire extinguishing" because "fire extinguishing" is a thermal power operation that can be performed at present.

The CPU 71 determines whether or not the recognition of the voice instruction of the thermal power operation from the user is completed (S12). For example, when the voice instruction of the thermal power operation is not recognized or the recognition fails (S12: NO), the CPU 71 returns to S12, receives the voice instruction from the user again, and performs the voice recognition process. When the recognition of the voice instruction of the thermal power operation is completed (S12: YES), the CPU 71 determines whether or not the recognized voice instruction is "end of voice operation" (S13). When the voice instruction is "voice operation end" (S13: YES), the CPU 71 ends the voice operation and outputs a voice "voice operation is finished" from the speaker 77 (S15). Return to the process of S5. As a result, the user can recognize that the voice operation has been completed. The CPU 71 returns to S5 and repeats the above process.

On the other hand, for example, when the voice instruction is "fire extinguishing" (S13: NO), the CPU 71 temporarily stores the recognized thermal power operation "fire extinguishing" in the RAM 73 as thermal power operation information (S14). Subsequently, as shown in FIG. 4, the CPU 71 determines whether or not there is only one burner currently igniting (S16). Here, in the state A, since the three burners (left stove 6, back stove 5, grill) are igniting (S16: NO), the previously accepted thermal power operation (“fire extinguishing” in this embodiment) is It is unclear which of the three igniting burners is targeted. Therefore, following the thermal power operation, it is necessary to specify the location of the target burner for the thermal power operation by voice instruction. In particular, the CPU 71 continues to execute the following control in order to cope with a thermal power operation that needs to be performed immediately, such as "fire extinguishing".

First, the CPU 71 obtains the rotation angle of the motor 32 of the gas amount adjusting mechanism 30 corresponding to the three burning burners, refers to the burner thermal power information stored in the non-volatile memory, and specifies the current burner thermal power of each. (S17). The CPU 71 temporarily stores the specified burner thermal power information in the RAM 73 as the original thermal power information (S18). In state A, the left stove 6 has a firepower of 9, the back stove 5 has a firepower of 3, and the grill has a firepower of 8. Next, the CPU 71 drives the motors 32 of the gas amount adjusting mechanisms 30 of the burners during ignition, and drives the valve mechanism portion 31, thereby temporarily changing all the three ignition burner thermal powers to low thermal powers. (S19). Therefore, as shown in the state B shown in FIG. 5, the thermal powers of the left stove 6, the back stove 5, and the grill are all set to 1 once. As a result, the thermal power is weakened for the time being until the location of the target burner for the thermal power operation is specified, so that it is possible to sufficiently cope with the case where it is necessary to immediately reduce the thermal power.

Subsequently, in order for the user to specify the location of the thermal power operation by voice instruction, the CPU 71 outputs the second announcement voice from the speaker 77 (S20). The second announcement voice is an explanation voice when designating the location of the thermal power operation. In state B, the three burners of the left stove 6, the back stove 5, and the grill are igniting, so these three locations can be selected at present. Therefore, the CPU 71 creates the second announcement voice data, which is the voice of the explanation for designating one of these three places currently being ignited. The CPU 71 creates, for example, a second announcement voice saying "Please select one from the left stove, the back stove, the grill, the fire extinguishing, and the end of the voice operation, and give a voice instruction.", And outputs the second announcement voice from the speaker 77. In addition to the currently selectable locations, the selection items explained in the second announcement voice include "fire extinguishing" and "end of voice operation", so if you want to extinguish the burning burner during cooking, or voice This is especially effective when you want to switch from operation to manual operation.

At the same time, the CPU 71 displays the explanation screen 102 (see FIG. 7) on the display unit 22 (S20). On the explanation screen 102, the currently selectable location and the words "fire extinguishing" and "voice operation end" are displayed in a list with the same contents as the output second announcement voice. As a result, the user can recognize the currently selectable item by both voice and display, so that the word of the voice instruction can be clearly recognized. Therefore, it is possible to prevent the user from issuing a voice instruction with the wrong word.

The CPU 71 accepts the location designation by voice instruction (S21). The user selects the location of the burner that performs the thermal power operation specified by the voice instruction from the locations notified by voice and display, and speaks to the stove 1. The CPU 71 determines whether or not the recognition of the voice instruction from the user is completed (S22). If the voice instruction of the currently selectable item is not recognized or the recognition fails (S22: NO), the CPU 71 returns to S22, receives the voice instruction from the user again, and performs the voice recognition process. When the recognition of the voice instruction of the place is completed (S22: YES), the CPU 71 determines whether or not the recognized voice instruction is "end of voice operation" (S23). When the voice instruction is "voice operation end" (S23: YES), the CPU 71 proceeds to S15 in FIG. 3, ends the voice operation, and emits a voice saying "voice operation is finished" to the speaker 77. Output from. As a result, the user can recognize that the voice operation has been completed. The CPU 71 returns to S5 and repeats the above process.

On the other hand, in the state B, since the user wants to extinguish only the grill, the voice instruction for specifying the location is "grill". When the CPU 71 recognizes the voice instruction from the user as "grill" (S23: NO), the grill is specified as the target burner (S24). That is, since the target burner for performing the "fire extinguishing" which is the thermal power operation received earlier is the "grill", the CPU 71 creates audio data of the execution operation voice of the content of extinguishing the grill and outputs it from the speaker 77. (S25). The CPU 71 outputs, for example, an execution operation voice such as "Extinguish the grill." This allows the user to recognize that the grill is about to be extinguished.

Then, after outputting the execution operation voice, the CPU 71 executes the previously received "fire extinguishing" for the target burner "grill" based on the thermal power operation information stored in the RAM 73 (S26). Further, at the same time or slightly later than this, the CPU 71 returns the burner thermal power other than the target burner to the original thermal power by referring to the original thermal power information stored in the RAM 73 (S27). The burners other than the target burner are the left stove 6 and the back stove 5. Based on the original thermal power information stored in the RAM 73, the CPU 71 restores the thermal powers of the left stove 6 and the back stove 5 to the original thermal power before switching to the low thermal power. As a result, as shown in the state C shown in FIG. 5, the grill is extinguished, the left stove 6 can be restored from the thermal power 1 to the original thermal power 9, and the back stove 5 can be restored from the thermal power 1 to the original thermal power 3. As a result, even if a plurality of burners are ignited, only the grill can be extinguished correctly and safely by the voice instruction of the user. In the present embodiment, since the execution operation voice is output before the thermal power operation is executed, the user can recognize in advance that the thermal power will be switched, so that it is possible to prevent the thermal power from being switched unexpectedly.

Next, the CPU 71 determines whether or not there is a burning burner (S28). When there is a burner during ignition (S28: YES), the CPU 71 returns to S10 in FIG. 3, outputs a voice explaining the thermal power operation again, and displays the explanation screen 101 on the display unit 22 to perform the current operation. Make the user recognize the voice instruction of the thermal power operation that can be performed, and repeat the above process.

On the other hand, when all the burners of the stove 1 are extinguished (S28: NO), the CPU 71 ends the voice operation and outputs the voice of the end of the voice operation from the speaker 77 (S29). The CPU 71 outputs, for example, a voice such as "End the voice operation." The CPU 71 returns to S2 in FIG. 3, determines whether or not the burner has been ignited again, and repeats the above process.

When the voice instruction of the ignition operation is first received and recognized (S12: YES in FIG. 3), there is only one burner during ignition (S16: YES in FIG. 4). Since the target burner is one burner that is currently igniting, it is not necessary to specify the location as in the case where there are a plurality of igniting burners. Therefore, if only the grill is ignited, the CPU 71 creates execution operation voice data of the content of extinguishing the grill, and outputs the execution operation voice from the speaker 77 based on the created data (S30). The CPU 71 outputs, for example, an execution operation voice such as "Extinguish the grill." After outputting the execution operation voice, the CPU 71 executes fire extinguishing, which is a thermal power operation, for the grill being ignited (S31). The CPU 71 advances the process to S28 and repeats the above process.

As described above, the stove 1 of the present embodiment recognizes the voice instruction from the user and individually performs the thermal power operation of the plurality of burners in the ignited state. In the speech recognition process, the user's speech and acoustic data candidates are matched, but in order to improve the speech recognition recognition rate, it is generally necessary to reduce the number of candidates for short sentences and matching words. Is. If the voice for voice recognition is a long sentence, the number of candidates increases and the possibility of erroneous recognition increases because the number of word combinations is large and complicated. On the other hand, in this embodiment, in order to reduce erroneous recognition of voice recognition, the thermal power operation and the location are not specified at the same time, but the final target thermal power operation is specified first, and then the thermal power operation is performed. Identify the target location.

For this reason, the stove 1 adopts an interactive method with the user, and the explanation voice from the speaker 77 and the display of the explanation screens 101 and 102 on the display unit 22 are displayed so that the user does not get lost. After the voice instruction of the operation, the person is instructed to give the voice instruction of the place. As a result, the user's voice instruction can be divided into at least two times, so that the voice instruction for voice recognition can be shortened. In the present embodiment, in particular, at the reception of the voice instruction of the first thermal power operation, the candidates for the thermal power operation can be five words, high thermal power, medium thermal power, low thermal power, fire extinguishing, and end of voice operation, and all of them can be short words. Further, even in the subsequent identification of the location, since the burner is limited to the burner currently in the ignition state, the number of candidates can be further reduced. As a result, erroneous recognition of voice recognition can be reduced, so that operability by voice instruction can be improved, and reliable thermal power operation can be performed according to the intention of the user.

Then, using the above method, for example, when a plurality of burners are igniting, an operation of changing the thermal power of one of the burners may be performed by voice instruction. In this case, since it takes a certain amount of time to specify the heating power operation and the location of the burner that performs the heating power operation, the timing of weakening the heating power may be delayed from the actual time and cooking may fail. Therefore, in the present embodiment, until the thermal power operation is specified, the location of the burner that performs the thermal power operation is specified, and the thermal power operation is completed, all the burning burners are temporarily switched to the low thermal power, and the thermal power operation is completed. After that, the other burners are restored to the original thermal power before switching to low thermal power. As a result, it is possible to prevent the cooking from failing because the timing of weakening the heating power is delayed from the actual timing. That is, the demerit caused by reducing the misrecognition can be eliminated. In addition, safety can be maintained because the operation of the thermal power to reduce the fire is not delayed from the actual operation. Therefore, the stove 1 of the present embodiment can provide an easy-to-use stove that can maintain safety while reducing erroneous recognition of voice recognition.

As described above, the stove 1 of the present embodiment includes the control circuit 70. The control circuit 70 receives a voice instruction from the outside and controls the operation of the four burners of the right stove 4, the back stove 5, the left stove 6, and the grill based on the content of the voice instruction. When at least two or more of the four burners are in the ignited state and the thermal power operation of one of the burners is performed, it is necessary to specify the content and location of the thermal power operation. Therefore, the CPU 71 of the control circuit 70 receives and recognizes the voice instruction of the thermal power operation of the burners when at least two or more of the four burners are in the ignition state. When the voice instruction of the thermal power operation is recognized, the CPU 71 weakens the thermal power of all the burners in the ignited state to the current thermal power. Further, the CPU 71 stores in the RAM 73 the original thermal power information before weakening the thermal power of the burner in the ignited state. Next, the CPU 71 recognizes the voice instruction of the thermal power operation, and then receives and recognizes the voice instruction for specifying the location of the target burner that is the target of the thermal power operation. The CPU 71 identifies the location of the target burner based on the voice instruction of the recognized location. The CPU 71 adjusts the thermal power of the target burner whose location is specified based on the thermal power operation previously received and recognized. Further, the CPU 71 restores the thermal power of the burner other than the target burner for the thermal power operation and the other burner whose thermal power is weakened to the original thermal power based on the original thermal power information stored in the RAM 73.

The stove 1 that can accept the voice instruction of the user and operate a plurality of burners according to the voice instruction is convenient, for example, when the hand cannot be taken off during other work, or when the hand is dirty and difficult to operate. The stove 1 is provided with a plurality of burners, but when two or more burners are in an ignited state, it may be desired to adjust only the thermal power of a specific burner. In that case, in the present embodiment, the voice instruction for instructing the thermal power operation of the burner is first received and recognized, and then the voice instruction for specifying the location of the target burner for performing the thermal power operation is received and recognized, and the specified target burner is recognized. Operate the firepower of. That is, since the voice instruction of the user is recognized separately as the voice instruction of the thermal power operation and the voice instruction of the place, each voice instruction is a short sentence as compared with the long voice instruction of specifying the thermal power operation and the place at once. Furthermore, the number of words that are candidates for matching used in speech recognition can be reduced. As a result, erroneous recognition of voice recognition can be reduced. Further, the CPU 71 temporarily adjusts all the thermal powers of the burners in the ignited state to low thermal powers from the time when the instruction of the thermal power operation is received until the target burner is specified. Thereby, for example, it is possible to prevent the cooking from failing because the timing of weakening the heating power is delayed from the actual timing. In addition, safety can be maintained because the operation of the thermal power to reduce the fire is not delayed from the actual operation. Therefore, the present embodiment can provide an easy-to-use stove that can maintain safety while reducing false recognition of voice recognition.

Further, the CPU 71 of the above embodiment outputs a first announcement voice prompting a voice instruction of the thermal power operation from the speaker 77 when at least two or more burners out of the plurality of burners are in the ignition state. Further, when the voice instruction of the thermal power operation is received, the second announcement voice prompting the voice instruction to specify the location of the target burner is output. As a result, the stove 1 is capable of interactively giving voice instructions, so that the user can be urged to give appropriate voice instructions.

Further, the voice instruction for the thermal power operation of the above embodiment is a voice instruction for instructing the extinguishing of the burner. Extinguishing a fire is an operation that needs to be performed immediately, and at least it is necessary to reduce the firepower immediately. The CPU 71 can temporarily weaken the thermal power of all the burners in the ignited state from the time when the instruction for extinguishing the fire is received by the voice instruction of the thermal power operation until the location of the target burner is specified. As a result, the stove 1 can handle the case where it is necessary to extinguish the target burner.

In the above description, the CPU 71 of the control circuit 70 is an example of the control unit of the present invention. The voice instruction of thermal power operation is an example of the first voice instruction of the present invention. The voice instruction of the location of the target burner is an example of the second voice instruction of the present invention. The CPU 71 that executes the processes of S6 and S7 of FIG. 3 is an example of the first recognition means of the present invention. The CPU 71 that executes the process of S19 in FIG. 4 is an example of the low heat power adjusting means of the present invention. The CPU 71 that executes the process of S17 is an example of the original thermal power storage means of the present invention. The CPU 71 that executes the processes of S21 and S22 is an example of the second recognition means of the present invention. The CPU 71 that executes the process of S24 is an example of the specific means of the present invention. The CPU 71 that executes the process of S26 is an example of the thermal power adjusting means of the present invention. The CPU 71 that executes the process of S27 is an example of the thermal power restoration means of the present invention. The CPU 71 that executes the process of S10 is an example of the first announcement information output means of the present invention. The CPU 71 that executes the process of S21 is an example of the second announcement information output means of the present invention. The first announcement voice output from the speaker 77 by the CP 71 in the process of S10 and the explanation screen 101 displayed on the display unit 22 are examples of the first announcement information of the present invention. The second announcement voice output from the speaker 77 by the CP 71 in the process of S20 and the explanation screen 102 displayed on the display unit 22 are examples of the second announcement information of the present invention.

Further, in the above embodiment, "specifying the location of the target burner for performing the thermal power operation" has the same meaning as "specifying the target burner for performing the thermal power operation" of the present invention.

The present invention is not limited to the above embodiment, and various modifications can be made. In the present embodiment, the built-in type stove 1 is illustrated, but it may be a table stove. The number of stoves may be one or more, and the grill may be omitted.

In S7, S12, and S22 of the voice operation control process of the above embodiment, when the voice instruction is received and the recognition is completed, the speaker emits a voice for notifying that the voice has been received, for example, a chime sound of "pawn". It is preferable to output from 77. As a result, it is possible to quickly recognize whether or not the voice instruction uttered by the user is recognized by the stove 1. If the chime does not sound even after speaking, it means that the voice recognition has failed, and the user can try to speak again.

In S10 of the voice operation control process of the above embodiment, the first announcement voice is output from the speaker 77 and the explanation screen 101 is displayed on the display unit 22, but one of them may be omitted. Also in S20, the second announcement voice is output from the speaker 77, and the explanation screen 102 is displayed on the display unit 22, but one of them may be omitted. Preferably, both the audio output and the display on the display unit 22 are performed as in the above embodiment.

In S19 of the above embodiment, the thermal power of the burning burner other than the target burner is uniformly weakened to the thermal power 1, but it may be weaker than the current thermal power and may not be weakened to the same thermal power.

In the above embodiment, the location of the target burner is recognized after recognizing the voice instruction of the thermal power operation, but the location of the target burner may be recognized first and then the voice instruction of the thermal power operation may be recognized. ..

In the above embodiment, the opening degree of the valve of the valve mechanism portion 31 is adjusted by driving the motor 32 of the gas amount adjusting mechanism 30 corresponding to the burner to adjust the thermal power of the burner. However, the gas amount adjusting mechanism The structure may be any other structure. For example, the amount of gas flowing through the burner may be adjusted by providing a plurality of bypass paths and solenoid valves in the gas supply pipe and opening and closing the solenoid valves.

1 stove 4 right stove burner 5 back stove burner 6 left stove burner 22 display unit 70 control circuit 71 CPU
101 Explanation screen 102 Explanation screen

Claims (3)

It is a stove equipped with a control unit that receives a voice instruction from the outside and controls the operation of a plurality of burners based on the content of recognizing the received voice instruction.
The control unit
A first recognition means that receives and recognizes a first voice instruction instructing a thermal power operation of the burner when at least two or more of the plurality of burners are in an ignition state.
When the first recognition means recognizes the first voice instruction, the weak heat adjusting means for weakening the fire power of all the burners in the ignited state, and
When the first recognition means recognizes the first voice instruction, the original thermal power storage means for storing the original thermal power information which is the information of the original thermal power before weakening the thermal power of the burner in the ignition state, and the original thermal power storage means.
After the first recognition means recognizes the first voice instruction, the second recognition means that receives and recognizes the second voice instruction for identifying the target burner that is the target of the thermal power operation.
Based on the second voice instruction recognized by the second recognition means, the specific means for identifying the target burner and the specific means.
A thermal power adjusting means for adjusting the thermal power of the target burner specified by the specific means based on the thermal power operation indicated by the first voice instruction recognized by the first recognition means.
The thermal power of another burner other than the target burner specified by the specific means and whose thermal power is weakened by the low thermal power adjusting means is converted to the original thermal power based on the original thermal power information stored in the original thermal power storage means. A stove characterized by being equipped with a means for restoring thermal power. The control unit
When at least two or more of the plurality of burners are in the ignition state, the first announcement information output means for outputting the first announcement information prompting the first voice instruction and the first announcement information output means.
The first aspect of claim 1 is provided with a second announcement information output means for outputting a second announcement information prompting the second voice instruction when the first recognition means recognizes the first voice instruction. The described stove. The stove according to claim 1 or 2, wherein the first voice instruction is a voice instruction instructing a fire extinguishing operation of the burner.

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