JP2018185075A - Cookstove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cookstove capable of urging a user to perform a correct voice instruction.SOLUTION: A CPU of a cookstove recognizes a voice instruction from a user and performs ignition operations of a plurality of burners in ignition states independently. When a voice operation is started (S8), the CPU determines a current acceptable heating power operation by the voice instruction (S11), and outputs guide voice to notify the user of determined alternative of heating power operation (S12). The user performs the current acceptable voice instruction to the cookstove after recognizing the guide voice. The user may forget the voice instruction even through the user heard the guide voice. In a case of non-agreement with the current acceptable heating power operation (S16:NO) as a result of the recognition of the voice instruction from the user, the CPU outputs the guide voice again (S12). Thus the user can confirm the current acceptable heating power operation, and gives a control command to the cookstove by a correct voice instruction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a stove.

  In a stove equipped with a burner, recognizing a 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. . The sound signal control type stove described in Patent Document 1 has a sound signal control unit attached to the control unit. The sound signal control unit includes a memory storing at least one control sound signal corresponding to a predetermined operation of the heater, a sound signal input unit, a sound signal recognition unit for recognizing the input sound signal, and a recognition And a sound signal collating 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 matches the stored sound signal in the verification by the sound signal verification unit, the control unit operates the burner corresponding to the sound signal. Control.

Japanese Patent No. 4313495

  As described above, it is difficult to accurately recognize many words on a stove that can recognize voices. Generally, it is devised to reduce misrecognition by narrowing down the number of voice instruction options. However, it is difficult for the user to memorize what options are available during use, and there is a problem that words that are not included in the options are not recognized and eventually cannot be operated.

  An object of the present invention is to provide a stove that can prompt a user to give a correct voice instruction.

  A stove according to claim 1 of the present invention is a stove including a control unit that receives a voice instruction from the outside and controls operations of a plurality of burners based on the recognized content of the voice instruction. The control unit includes a determining unit that determines a control command that can be currently accepted by the voice instruction, a notifying unit that notifies options of the control command determined by the determining unit, and the voice received after the notification by the notifying unit. As a result of recognizing the instruction, if the control instruction determined by the determination means does not match or if the voice instruction is not received for a certain period of time, a re-notification means for re-notifying the control instruction determined by the determination means, and an acceptance As a result of recognizing the voice instruction, if the control instruction matches the control command determined by the determining means, the control command is determined based on the recognized content of the voice instruction. Characterized by comprising an execution means for executing.

  A stove according to a second aspect of the present invention may comprise the voice notification means for notifying the choice of the control command determined by the determination means by voice in addition to the configuration of the invention according to the first aspect. .

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect of the invention, the notification means displays the control command options determined by the determination means on a display unit for notification. Image notification means may be provided.

  According to the stove of the invention according to claim 1, a control command that can be accepted at present is determined by voice instruction, and the user is notified of the choices. The user selects one control command from the notified control commands and gives a voice instruction to the stove. The stove recognizes the voice instruction received after the notification, and executes the control instruction based on the recognized content of the voice instruction when the voice instruction matches the control instruction that can be currently accepted. However, even if the user is notified of a control command option that can be currently accepted from the stove, the user may forget the option or make a wrong voice instruction. That is, as a result of recognizing the voice instruction from the user, it is assumed that the control command does not coincide with the currently accepted control command or the voice instruction is not accepted for a certain period of time. In such a case, the stove notifies again of the control command that can be accepted at present by voice instruction. As a result, the user can confirm again the control commands that can be accepted at the present time, so that the control commands can be issued to the stove with correct voice instructions.

  According to the stove of the invention of claim 2, in addition to the effect of the invention of claim 1, it is possible to inform the user of the control command options that can be accepted by voice, so that the user can be informed intuitively. it can.

  According to the stove of the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the currently acceptable control command options can be displayed and notified on the display unit. There is no such thing as missing. Therefore, the user can correctly give a voice instruction of the control command to the stove after confirming the control command options displayed on the display unit.

  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 configurations of other claims 2 and 3 may be provided. However, in particular, the configuration of claim 1 may be provided, and at least one of the configurations and combinations of claims 2 and 3 may be provided. Any constituent elements of claims 1 to 3 may be extracted and combined. The present applicant intends to obtain a patent right for such a configuration.

1 is a perspective view of a stove 1. FIG. It is a block diagram which shows the electric constitution of the stove. It is a flowchart of a voice operation control process. It is a flowchart which shows the continuation of FIG. It is a state transition diagram showing an example of voice operation control. It is a figure which shows the state by which the description screen 101 was displayed on the display part 22. FIG. It is a figure which shows the state by which the description screen 102 was displayed on the display part.

  Embodiments of the present invention will be described below. The device structure, flowcharts, and the like described below are merely illustrative examples, and are not intended to limit the present invention unless otherwise specified. The drawings are used to explain technical features that can be adopted by the present invention. In the following description, left, right, front, 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 in front of the right side, a left stove burner 6 is provided in front of the left hand, and a back stove burner 5 is provided in the center rear side. A sensor assembly 20 that detects the temperature of the cooking pan in contact with the bottom of the pan is provided at the center of each of the stove burners 4 to 6. The sensor assembly 20 is provided so as to be movable in the vertical direction, and stores the thermistor 40 (see FIG. 2). A thermocouple 50 (see FIG. 2) for detecting misfire and an igniter 60 (see FIG. 2) for igniting are provided in the vicinity of the stove burners 4-6. An exhaust port 7 of a grill cabinet (not shown) installed in the stove 1 is provided at the rear portion of the top plate 3. A rectangular display unit 22 is provided at a substantially central portion on the front side of the top plate 3. The display unit 22 is a liquid crystal, for example. The display unit 22 displays a setting screen (not shown) for the stove 1, explanation screens 101 and 102 (see FIGS. 6 and 7) at the time of voice operation, which will be described later, and the like.

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

  The operation button 11 is pressed to ignite and extinguish the right burner 4, the operation button 12 is the back burner 5, the operation button 13 is the left burner 6, and the operation button 14 is used 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 described later performs ignition processing for the corresponding burner, and the operation buttons 11 to 14 are moved from the front of the stove 1 by a known push-push mechanism (not shown). It protrudes in a substantially cylindrical shape toward the front, and can be rotated 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.

  In 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 31 and a motor 32. The valve mechanism 31 includes various valves such as a needle valve and an electromagnetic 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 31 to adjust the flow rate of gas flowing through the gas flow path. The driving of the motor 32 is controlled by the control circuit 70.

  When the operation buttons 11 to 14 are pushed and protruded toward the front, the control circuit 70 energizes the motor 32 of the gas amount adjusting mechanism 30. As a result, the valve mechanism 31 is driven and the gas flow path is opened, whereby gas is supplied to the corresponding burner. Then, according to the rotation direction and rotation angle of the operation buttons 11 to 14, the control circuit 70 rotates the motor 32 in the forward and reverse directions to adjust the opening degree of the valve in the valve mechanism unit 31. Thereby, the thermal power of the corresponding burner is adjusted by adjusting the amount of gas flowing through the gas flow path. 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. Thereby, the valve of the valve mechanism part 31 is driven in the reverse direction, and the gas flow path is closed, whereby the supply of gas to the corresponding burner is shut off.

  A power button 25 is provided immediately above the operation button 11. A hole 17 penetrating the panel on the front surface of the stove 1 is provided obliquely above and to the left of the operation button 14, and a microphone 76 is provided in the hole 17 so as to face the inside of the stove 1. The stove 1 of this embodiment has a voice operation function. The voice operation function is a function that accepts a user's voice instruction with the microphone 76, identifies the contents of the voice instruction by performing voice recognition, and enables the target burner to be operated by heating. The voice instruction is an operation instruction such as a thermal power to be performed on 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 nonvolatile memory 74, and the like. The CPU 71 performs overall control of various operations of the stove 1. The ROM 72 stores various programs such as a voice operation control program. The voice operation control program executes a voice operation control process (see FIGS. 3 and 4) described later. The RAM 73 temporarily stores various information. The non-volatile memory 74 stores various data such as acoustic model data and burner thermal power information for voice recognition in addition to various parameters for temperature 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 identify the corresponding burner heating 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, an audio input circuit 86, an audio 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 AC (for example, 100V) supplied from the power supply 23 to a direct current (for example, 5V) to rectify and supply power to various circuits. Therefore, the power source 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 power supply to various circuits. Therefore, the power source 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 accommodated in the lower right part of the front panel of the stove 1, and is pulled out to the near side by pushing in this part. The operation panel 24 receives input such as timer setting by the user, selection of thermal power control according to the cooking menu, and the like, and inputs the input signal to the control circuit 70. The motor control circuit 85 controls driving of the motors 32 of the four gas amount adjusting mechanisms 30 based on a control signal from the CPU 71.

  The voice input circuit 86 converts the analog signal of the voice 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 a control signal from the CPU 71 and outputs the analog signal to the speaker 77. The buzzer circuit 88 drives the piezoelectric buzzer 78 based on a control signal from the CPU 71. The display control circuit 89 displays various screens on the display unit 22 based on a control signal from the CPU 71. The sensor 19 is provided in each of the operation buttons 11 to 14, detects the rotation direction and rotation angle of the operation buttons 11 to 14, and inputs 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 to drive the valve mechanism 31 so as to correspond to the rotation direction and rotation angle of the operation buttons 11 to 14. Thereby, the gas quantity which flows through a gas flow path is adjusted, and the thermal power of a 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 nonvolatile 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, the “acoustic model data” stored in the nonvolatile memory 74 may be matched with the input audio signal (waveform). The “acoustic model data” means a speech word dictionary created based on average pronunciation data. For the matching, for example, a theory called “HMM (Hidden Markov Model)” may be used. Matching is usually performed in units of 10 to 20 milliseconds and sequentially performed 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. When the user presses the power button 25 on the stove 1 and power is supplied from the power supply circuit 81 to the control circuit 70, the CPU 71 reads a voice operation control program from the ROM 72 and executes this processing. In the present embodiment, for convenience of explanation, the right stove burner 4, the left stove burner 6, the back stove burner 5, and the grill burner are referred to as the right stove 4, the left stove 6, the back stove 5, and the grill, respectively.

  As shown in FIG. 3, the CPU 71 performs initial setting (S1). In the initial setting, the CPU 71 initializes setting values necessary for various processes. Next, the CPU 71 determines whether any one of the right stove 4, the left stove 6, the back stove 5, and the grill has been ignited (S2). Until any one of the burners is ignited (S2: NO), the CPU 71 returns to S2 and waits. When any one 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 the burner information during ignition is used as ignition burner information. Store in the RAM 73.

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

  Next, in order to inform the user of the voice operation start method, the CPU 71 outputs a voice for explaining the voice operation start from the speaker 77 (S5). For example, the CPU 71 outputs, from the speaker 77, a voice “Please speak“ Start voice operation ”to start voice operation”. The CPU 71 accepts the start of voice operation (S6). When the user performs a thermal operation or the like by voice instruction for the ignited burner, the user speaks to the stove 1 as “voice operation start”. The user's voice is collected by the microphone 76, converted from a voice analog signal to a 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 digital audio signal with the acoustic data of “start voice operation”.

  The CPU 71 determines whether or not the user's voice instruction is recognized as “start voice operation” as a result of the voice recognition process (S7). For example, if it is not recognized as “voice operation start” or the recognition fails (S7: NO), the CPU 71 returns to S6, accepts a voice instruction from the user again, and performs voice recognition processing. If the voice operation is not performed, the user does not utter “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 voice of the user collected by the microphone 76 is recognized as “voice operation start” (S7: YES), the CPU 71 starts the voice operation (S8) and the voice operation start guidance voice Is output (S9). For example, the CPU 71 outputs a voice “starting voice operation” from the speaker 77. Thereby, the user can recognize that the voice operation has been started on the stove 1. CPU71 starts reception of the thermal operation by voice instruction (S10).

  Next, the CPU 71 determines a thermal power operation that can be currently accepted based on the burner that is currently ignited (S11). In the present embodiment, in any burner of the right stove 4, the back stove 5, the left stove 6, and the grill, the thermal power operation is “large thermal power”, “mid thermal power”, “small thermal power”, “extinguishing fire”. Although it is set as four types, you may change for every burner. Since the burner that is currently ignited is the rear stove 5, the left stove 6, and the grill, the thermal power operations that can be accepted at present are determined to be "large thermal power", "mid thermal power", "small thermal power", and "extinguish". The CPU 71 stores in the RAM 73 information on the determined thermal power operation that can be accepted at present. Next, the CPU 71 outputs, from the speaker 77, a guide voice for notifying the user of choices of items that can be accepted on the stove 1 (S12). As a guide voice, for example, a voice of “Select one from among large thermal power, medium thermal power, small thermal power, fire extinguishing, voice operation end, and give a voice instruction” is output. The currently acceptable items include “sound operation end” in addition to the currently acceptable thermal power operation stored in the RAM 73, which is effective when switching from voice operation to manual operation in the middle. is there.

  At the same time, the CPU 71 displays the explanation screen 101 (see FIG. 6) on the display unit 22 (S13). The explanation screen 101 displays a list of items of control commands that can be executed at present with the same contents as the output guide voice. Thereby, the user can recognize the item of the control command that can be performed at present by both voice and display, and can clearly recognize the word of the voice instruction. Therefore, the stove 1 can prevent the user from giving a voice instruction with an incorrect word.

  During cooking, for example, there are noises due to various factors such as the sound of oil when frying the food in a frying pan, the sound of a ventilator, the sound when the cooking utensils hit each other, so only the guide sound from the speaker 77 Then, there is a possibility that you may miss it or forget it later. However, in this embodiment, the guide voice is output from the speaker 77 and the explanation screen 101 is displayed on the display unit 22. Thereby, even if the explanation output with the guide voice is missed, it can be confirmed on the explanation screen 101 displayed on the display unit 22. Furthermore, since the word of the thermal power operation that can be performed now can be clearly displayed on the explanation screen 101, the user can speak the correct word on the stove 1. Therefore, the possibility of erroneous recognition can be reduced.

  The user selects one thermal power operation to be performed on the burning burner from the thermal power operations informed by voice and display, and speaks to the stove 1. However, even if the user hears a guide voice of an item that can be currently accepted from the stove 1, the user may forget that option or make a wrong voice instruction. Also, there are cases where voice instructions cannot be issued due to forgetting the options. In some cases, the user may be away from the stove 1 and the display unit 22 cannot be confirmed. Therefore, the CPU 71 determines whether a voice instruction has been received from the user (S14). If no voice instruction has been received (S14: NO), the CPU 71 determines whether or not a certain time (for example, 10 seconds) has elapsed since the start of reception of the voice instruction for the thermal operation. S15). Until the predetermined time has elapsed (S15: NO), the CPU 71 returns to S14 and waits. If the voice instruction is not accepted for a certain period of time (S15: YES), it is assumed that the user has forgotten the items that can be accepted, and the CPU 71 returns to S12 and guides again. Sound is output from the speaker 77. As a result, the user can reconfirm the currently acceptable items, and can speak to the stove 1 with a correct voice instruction.

  On the other hand, when the voice instruction is received from the user (S14: YES), the CPU 71 determines the words of the currently accepted items among the received voice instruction digital data and the acoustic data stored in the nonvolatile memory 74. Matching with acoustic data is performed, and the above speech recognition is performed. As a result, the CPU 71 determines whether or not it matches the currently acceptable item (S16). As described above, for example, if the user has forgotten an item that can be currently received, and has given a voice instruction for a thermal operation that is different from the currently accepted words for the thermal operation, it can be currently accepted. Since it does not coincide with the words of the thermal operation (S16: NO), it is a recognition failure. Therefore, in order to notify the user of the correct thermal power operation again, the CPU 71 returns to S12 and again outputs a guide sound from the speaker 77. As a result, the user notices that the words of the thermal operation that he / she uttered are incorrect and can reconfirm the currently acceptable items, so that the user can speak to the stove 1 with correct voice instructions.

  If the voice instruction from the user matches the currently acceptable item as a result of the voice recognition (S16: YES), the CPU 71 determines whether or not the recognized voice instruction is “End of voice operation”. (S17). When the voice instruction is “voice operation ended” (S17: YES), the CPU 71 ends the voice operation and outputs a voice “voice operation ended” from the speaker 77 (S19). The process returns to S5. Thereby, the user can recognize that the voice operation has ended.

  Here, for example, a 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 in an ignited state, and the right stove 4 is in a fire extinguisher state. In this state A, when it is desired to extinguish only the ignited grill, “fire extinguishing” is a thermal power operation that can be accepted at present, and the user speaks to the stove 1 as “fire extinguishing”. When the voice instruction is “fire extinguishing” (S16: YES, S17: NO), the CPU 71 temporarily stores the recognized fire extinguishing “fire extinguishing” as the thermal power operation information in the RAM 73 (S18). Subsequently, as shown in FIG. 4, the CPU 71 determines whether or not there is only one burner that is currently ignited (S20). Here, in the state A, since the three burners (the left stove 6, the back stove 5, and the grill) are being ignited (S20: NO), the previously accepted thermal power operation ("fire extinguishing" in this embodiment) It is not clear which burner is the target among the three ignition burners. Therefore, following the thermal power operation, it is necessary to specify the location of the target burner of 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 ignition burners, refers to the burner thermal power information stored in the non-volatile memory, The burner thermal power is specified (S21). The CPU 71 temporarily stores the specified burner during ignition and information on each burner thermal power in the RAM 73 as original thermal power information (S22). In the state A, the burner being ignited is the left stove 6, the back stove 5, and the grill. The fire power of the left stove 6 is 9, the fire power of the back stove 5 is 3, and the fire power of the grill is 8. Next, the CPU 71 drives the motor 32 of each of the gas amount adjusting mechanisms 30 of the burner during ignition and drives the valve mechanism unit 31 to temporarily change all three burner thermal powers during ignition to weak thermal power. (S23). Therefore, as in the state B shown in FIG. 5, the heating powers of the left stove 6, the back stove 5, and the grill are all once. Thus, until the location of the target burner for thermal power operation is specified, the thermal power is weakened for the time being.

  Subsequently, the CPU 71 starts receiving location designation by voice instruction (S24). The CPU 71 determines a currently acceptable place based on the burner that is currently ignited (S25). Currently accepted locations are the left stove 6, the back stove 5 and the grill that are being ignited, so the CPU 71 temporarily stores these determined locations in the RAM 73. Then, in order to allow the user to specify the location of the thermal power operation by voice instruction, the CPU 71 creates guide voice data for informing the user of choices of items that can be currently accepted on the stove 1 and outputs them from the speaker 77. (S26). As described above, in the state B, since the three burners of the left stove 6, the back stove 5, and the grill are being ignited, there are three places that can be received at present. Therefore, the CPU 71 creates guide voice data for designating one of these three locations that are currently ignited. For example, the CPU 71 creates guide voice data “Select one from the left stove, back stove, grill, fire extinguishing, and voice operation end and give a voice instruction”, and outputs it from the speaker 77. The choices of items explained in the guide voice include “fire extinguishing” and “speech operation end” in addition to the currently acceptable locations, so if you want to extinguish the burning burner during cooking, This is particularly effective when switching from voice operation to manual operation.

  At the same time, the CPU 71 displays the explanation screen 102 (see FIG. 7) on the display unit 22 (S27). The explanation screen 102 displays a list of locations that can be currently selected and items “fire extinguishing” and “end voice operation” with the same contents as the output voice. Thereby, the user can recognize the choices of items that can be accepted at present both by voice and display, and thus can clearly recognize the word of the voice instruction. Therefore, it is possible to prevent the user from giving a voice instruction with an incorrect word.

  The user selects the location of the burner performing the thermal power operation designated by the voice instruction from the locations informed by voice and display, and speaks to the stove 1. Here, as in the case of accepting the thermal power operation, even if the user hears a guide voice of a place that can be accepted at present from the stove 1, the user may forget that option or make a wrong voice instruction. . Also, there are cases where voice instructions cannot be issued due to forgetting the options. In some cases, the user may be away from the stove 1 and the display unit 22 cannot be confirmed. Therefore, the CPU 71 determines whether a voice instruction has been received from the user (S28). When the voice instruction is not accepted (S28: NO), the CPU 71 determines whether or not a certain time (for example, 5 seconds) has passed since the start of accepting the voice instruction for the thermal operation. S29). Until a predetermined time has elapsed (S29: NO), the CPU 71 returns to S28 and waits. If the voice instruction is not accepted for a certain time (S29: YES), the user may have forgotten, for example, an item that can be currently accepted, so the CPU 71 returns to S26 and again accepts the current one. A guide voice for informing the selection of possible items is output from the speaker 77. As a result, the user can reconfirm the currently acceptable items, and can speak to the stove 1 with a correct voice instruction.

  Then, when a voice instruction is received from the user (S28: YES), the CPU 71 determines the words of the currently accepted items among the received voice instruction digital data and the acoustic data stored in the nonvolatile memory 74. Matches with acoustic data and performs speech recognition. As a result, the CPU 71 determines whether or not the received voice instruction matches the word of the item that can be currently received (S30). As described above, for example, if the user forgets a currently acceptable place and gives a voice instruction for a place different from the currently acceptable place, Are not matched (S30: NO), the CPU 71 returns to S26 to notify the user of the correct location again, and outputs the guide voice from the speaker 77 again. As a result, the user notices that the place he / she spoke is wrong and can reconfirm the currently acceptable place, so that the user can speak to the stove 1 with a correct voice instruction.

  If the voice instruction from the user matches the currently acceptable item as a result of the voice recognition (S30: YES), the CPU 71 determines whether or not the recognized voice instruction is “End of voice operation”. (S31). If the voice instruction is “End of voice operation” (S31: YES), the CPU 71 proceeds to S19 in FIG. 3 to end the voice operation and to output the voice “The voice operation has ended” to the speaker 77. Output from. Thereby, the user can recognize that the voice operation has ended. The CPU 71 returns to S5 and repeats the above processing.

  On the other hand, in the state B, since the user wants to extinguish only the grill, the place-designated voice instruction is “grill”. When the CPU 71 recognizes the voice instruction from the user as “grill” (S30: YES, S31: NO), the grill is specified as the target burner (S32). That is, since the target burner that performs “fire extinguishing” that is the fired power operation that has been received earlier is “grill”, the CPU 71 creates audio data of the execution operation audio that extinguishes the grill and outputs it from the speaker 77. (S33). The CPU 71 outputs, for example, an execution operation sound “Fire extinguishing the grill”. Thereby, the user can recognize that the grill will be extinguished from now on.

  Then, after outputting the execution operation sound, the CPU 71 executes “fire extinguishing” received earlier on the “grill” as the target burner based on the thermal power operation information stored in the RAM 73 (S34). Further, at the same time or a little later than this, the CPU 71 refers to the original thermal power information stored in the RAM 73 with respect to the burner thermal power other than the target burner (S35). Burners other than the target burner are the left stove 6 and the back stove 5. Based on the original heating power information stored in the RAM 73, the CPU 71 restores the respective heating powers of the left stove 6 and the back stove 5 to the original heating power before switching to the weak heating power. As a result, the grill is extinguished as in state C shown in FIG. Thereby, even if a some burner is an ignition state, only a grill can be extinguished correctly and safely by a user's voice instruction. In this embodiment, since the execution operation sound is output before the thermal power operation is performed, the user can recognize in advance that the thermal power will be switched from now on, so that it is possible to prevent the thermal power from being switched unexpectedly.

  Next, the CPU 71 determines whether or not there is an ignition burner (S36). When there is a burner that is ignited (S36: YES), the CPU 71 returns to S12 in FIG. 3 to output the sound of the explanation of the thermal operation again and display the explanation screen 101 on the display unit 22, so that the current operation is performed. The user is made to recognize the voice instruction of the thermal power operation that can be performed, and the above processing is repeated.

  On the other hand, when all the burners of the stove 1 are extinguished (S36: NO), the CPU 71 ends the voice operation and outputs the voice of the voice operation end from the speaker 77 (S37). The CPU 71 outputs, for example, a voice “End voice operation”. The CPU 71 returns to S2 in FIG. 3, determines again whether the burner has been ignited, and repeats the above processing.

  In addition, when the voice instruction | indication of ignition operation is received first and recognized, and the burner in ignition is one (S20 of FIG. 4: YES). Since the target burner is one burner that is currently ignited, it is not necessary to specify the location as in the case where there are a plurality of burners that are being ignited. Therefore, if only the grill is in an ignited state, the CPU 71 creates execution operation sound data with contents to extinguish the grill, and outputs execution operation sound from the speaker 77 based on the created data (S38). The CPU 71 outputs, for example, an execution operation sound “Fire extinguishing the grill”. After outputting the execution operation sound, the CPU 71 executes fire extinguishing that is a thermal operation on the grill that is being ignited (S39). The CPU 71 advances the process to S36 and repeats the above process.

  As described above, the stove 1 according to the present embodiment recognizes a voice instruction from a user and individually performs a thermal power operation of a plurality of burners in an ignition state. When the voice operation is started, the CPU 71 of the stove 1 determines a control command that can be currently accepted by a voice instruction, and outputs a guide voice from the speaker 77 for notifying the user of options of the determined control command. The control command is, for example, a control command for designating a burner's thermal power operation, a control command for designating the location of the burner performing the designated thermal power operation, or the like. Further, the CPU 71 displays on the display unit 22 an explanation screen 101 (102) in which items of control commands that can be currently accepted are described. As a result, the user can give a voice instruction to the stove 1 after confirming a control command that can be accepted by the voice instruction.

  However, even if the user is informed of the control command options that can be accepted from the stove 1 by voice, the user may forget the options or make a wrong voice instruction. That is, as a result of recognizing the voice instruction from the user, it is assumed that the control command does not coincide with the currently accepted control command or the voice instruction is not accepted for a certain period of time. In such a case, the CPU 71 outputs the guide voice again from the speaker 77 and redisplays the explanation screen 101 (102) on the display unit 22. As a result, the user can confirm again the control commands that can be accepted at the present time, so that the control commands can be issued to the stove 1 with correct voice instructions.

  In the above-described embodiment, the currently accepted control command options are notified by voice, so that the user can be notified intuitively.

  Moreover, in the said embodiment, since the description screen 101 (102) which shows the choice of the control command which can be received now is displayed on the display part 22 and alert | reported, there is no missing like a voice. Therefore, after confirming the explanation screen 101 (102) displayed on the display unit 22, the user can correctly give a voice instruction of the control command to the stove 1.

  In the above description, the CPU 71 of the control circuit 70 is an example of the “control unit” in the present invention. The CPU 71 that executes the processes of S11 and S25 is an example of the “determination unit” in the present invention. The CPU 71 that executes the processes of S12, S13, S26, and S27 is an example of the “notification unit” in the present invention. The CPU 71 that executes the processes of S12 to S16 and S26 to S30 is an example of the “re-notification unit” in the present invention. The CPU 71 that executes the process of S39 is an example of the “execution means” in the present invention. The CPU 71 that executes the processes of S12 and S26 is an example of the “voice notification unit” in the present invention. The CPU 71 that executes the processes of S13 and S27 is an example of the “image notification unit” in the present invention.

  In addition, this invention is not limited to the said embodiment, A various change is possible. In this embodiment, although the built-in type stove 1 was illustrated, a table stove may be sufficient. The number of the stove burners 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 a voice instruction is received and recognition is completed, a voice for notifying that the voice has been received, for example, a chime sound such as “pawn” is displayed on the speaker. 77 may be output. Accordingly, it is possible to quickly recognize whether or not the voice instruction spoken by the user is recognized by the stove 1. If the chime does not sound after speaking, the user knows that the voice recognition has failed, and the user can try to speak again.

  In S12 and S13 of the voice operation control process of the above embodiment, the guide voice is output from the speaker 77 and the explanation screen 101 is displayed on the display unit 22. However, either one may be omitted. Also in S26 and S27, the guide voice is output from the speaker 77 and the explanation screen 102 is displayed on the display unit 22, but either one may be omitted. Preferably, both sound output and display on the display unit 22 are performed as in the above embodiment.

  In S19 of the above embodiment, the thermal power of the burner other than the target burner is uniformly weakened to the thermal power 1, but 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 operation, but the location of the target burner may be recognized first and then the voice instruction of the thermal operation may be recognized. .

  In the above embodiment, by driving the motor 32 of the gas amount adjusting mechanism 30 corresponding to the burner, the valve opening degree of the valve mechanism 31 is adjusted to adjust the burner's thermal power. This structure may be other than this structure. For example, the gas supply pipe may be provided with a plurality of bypass passages and electromagnetic valves, and the amount of gas flowing through the burner may be adjusted by opening and closing the electromagnetic valves.

  In the voice operation control process of the above embodiment, “fixed time” of S15 is 10 seconds as an example, and “fixed time” of S29 is 5 seconds as an example, but can be freely set.

  In the voice operation control process of the above embodiment, when a state in which no voice instruction is received from the user continues for a certain time (S14: NO, S15: YES), the guide voice is automatically output again (S12). Apart from that, for example, the user may forget the guide voice once heard and want to listen again. In such a case, the user himself / herself, for example, may speak a different word that does not match the currently accepted control command (S16: NO), and the guide voice may be output again (S12). The word that does not match the control command that can be accepted at present may be a specific word such as “repeat”, for example, and the content of the word may be changed each time. Alternatively, when the user speaks a specific word such as “repeat” and the CPU 71 recognizes it, the guide voice may be output again.

DESCRIPTION OF SYMBOLS 1 Cooker 4 Right cooker 5 Back cooker 6 Left cooker 22 Display unit 70 Control circuit 71 CPU
101 Explanation screen 102 Explanation screen

Claims (3)

A stove provided with a control unit that receives voice instructions from the outside and controls the operations of a plurality of burners based on the recognized contents of the voice instructions,
The controller is
Determining means for determining a control command that can be currently accepted by the voice instruction;
Informing means for informing the control command choices determined by the determining means;
After the notification by the notification means, as a result of recognizing the received voice instruction, if the control instruction determined by the determination means does not match or the voice instruction is not received for a certain period of time, the control determined by the determination means Re-notification means for notifying the command again;
As a result of recognizing the received voice instruction, an execution means is provided for executing the control instruction based on the recognized content of the voice instruction when the control instruction matches the control instruction determined by the determination means. Stove to do. The notification means includes
The stove according to claim 1, further comprising a voice notification unit that notifies the selection of the control command determined by the determination unit by voice. The notification means includes
The stove according to claim 1, further comprising an image notification unit that displays on the display unit and notifies the control command options determined by the determination unit.

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