TW202129156A - Air blower - Google Patents

Abstract

An air blower, comprising a fan which blows air, a motor which drives the fan, a sound input section which acquires an input voice, and a control section which performs prescribed controls in accordance with the input voice, wherein the control section is configured to change the operating status of the air blower upon determining that an aspect of the operating status of the air blower might impede the ability of the sound input section to acquire an input voice.

Description

Blower

One aspect of the present invention relates to a device that can be operated by voice recognition in equipment with air supply means, such as electric fans, circulators, humidifiers, dehumidifiers, air purifiers, air conditioners, etc. equipment.

In the past, there have been blowers with air blowing means such as electric fans or circulators. On the other hand, in recent years, the number of devices operated by voice recognition has been increasing. In Patent Document 1, an electric fan with voice operation means is disclosed. [Prior technical literature] [Patent Literature]

Patent Document 1: Japanese Patent Application Publication No. 2002-349477

[The problem to be solved by the invention]

As mentioned above, the conventional electric fan with voice operation means is only a combination of voice operation means and electric fan. It cannot be said that the "noise generated by the fan and motor when the electric fan is operating" is taken into consideration. . In blowers such as electric fans, there is a need for a structure that takes the noise emitted by the equipment into consideration and improves the recognition rate of speech. [Technical means to solve the problem]

In order to solve at least any one of the above-mentioned problems, the present invention adopts the following means. In addition, in the following description, in order to make the invention easy to understand, the symbols in the drawings may be marked in parentheses. However, the constituent elements of the present invention are not limited to these notes, but should be related to the technology. An interpreter with a wide range of technologies that can be understood by ordinary knowledgeable persons in the field.

One means of the present invention is a blower (10), comprising: a fan (56) for blowing, a motor (54) for driving the fan, a sound input unit (66) for obtaining input sound, and a predetermined setting based on the input sound Controlled control unit (100); the control unit changes the operating state of the air blower when it determines that there is a factor that interferes with the voice acquisition of the voice input unit in the operating state of the air blower.

For the blower with the above configuration, for example, there are factors that interfere with voice acquisition, such as "the volume of the noise from the blower is louder", or "the wind is passing between the user performing the voice input and the voice input part". Under the circumstance, the action can be performed to change the action state and reduce the noise. Thereby, the voice input unit can easily obtain a clear input voice. Furthermore, the recognition rate of speech can be improved.

In the blower (10) configured as described above, it is preferable that the change of the operating state is to change the rotation speed of the motor (54).

The blower with the above structure can suppress the noise generated by the rotation of the motor and the fan, and it is easier to obtain a clear input voice.

In the blower with the above structure, it is preferable to further include a wind direction changing section (121) for changing the blowing direction; the change of the operation state is a change of the blowing direction by the wind direction changing section.

According to the blower with the above structure, the blowing direction can be changed in the up and down or left and right directions so that the wind does not pass between the user and the voice input part, and it is easier to clearly transmit the user's human voice to the voice input part.

In the blower with the above configuration, it is preferable to further include: a wind direction changing part (121) that changes the blowing direction, and a driving part (120) that drives the wind direction changing part; action.

The blower with the above-mentioned structure can suppress the noise from the driving part or the wind direction changing part when the driving part drives the wind direction changing part. In this way, it is easier to obtain a clear input voice.

In the blower with the above-mentioned structure, it is preferable to further include a notification sound output unit (67) for outputting the output voice, and the change of the operation state is to suppress or prohibit the output voice.

The blower with the above structure can prevent the noise output from the blower from being mixed into the input sound, and it is easier to obtain a clear input voice.

In the blower with the above structure, it is preferable that the control unit (100) can recognize the input sound as a wake-up keyword, and when the control unit recognizes the wake-up keyword, check whether the volume of the sound generated from the blower exceeds Judgment of the critical value.

According to the blower with the above-mentioned structure, after recognizing the wake-up keywords that particularly want to increase the voice recognition rate, the control keywords input by the user can be easily and clearly obtained.

In the blower with the above-mentioned structure, it is preferable to further include: a volume measuring unit (66a) that measures the volume of the surrounding sound; the control unit determines whether the volume of the sound generated from the blower is based on the measurement result of the volume measuring unit Judgment that exceeds this critical value.

With the blower with the above structure, it is possible to dynamically check the noise around the blower and the noise emitted from the blower, while changing the operating state of the blower for noise suppression only in an environment where it is difficult to obtain a clear input voice.

In the blower with the above-mentioned configuration, it is preferable that the volume measurement unit measures the volume of the surrounding sound based on the input sound.

With the blower constructed as above, it is possible to measure the volume of the noise around the blower and the sound emitted from the blower without adding a special configuration for volume measurement.

In the blower with the above structure, it is preferable that the threshold value can be changed by setting.

In the blower with the above configuration, it is preferable that the control unit (100) recognizes that the input sound is a control keyword during a predetermined control keyword recognition period (for example, 6 seconds) after the wake-up keyword recognition After the wake-up keyword is recognized, and after the control keyword recognition period has elapsed, the action state of the blower is returned to the original state.

The blower with the above-mentioned structure can be set to a noise-suppressing operation state during the control keyword recognition period, and after the control keyword recognition period ends, it can perform an operation to return to the original operation state.

In the blower with the above configuration, it is preferable that the control unit (100) use the control keyword as a command to change the rotation speed of the motor, and when the rotation speed of the motor after the change is above a predetermined value, set the control keyword Change the rotation speed of the motor after the recognition period has elapsed.

The blower with the above-mentioned structure can prevent the speed of the motor from increasing immediately by operating in the case of "increasing the speed of the motor that is prone to noise to a predetermined value or more," and suppressing the immediate increase in the speed of the motor. The resulting noise becomes louder. This prevents the user from being unable to obtain a clear input sound when the user continues to control by the control keyword.

In the blower of the above-mentioned configuration, it is preferable to further include: an air volume display unit (65) that displays the air volume, and the air volume display unit is set to the control keyword when the control keyword is a command to change the rotation speed of the motor Change the display of the air volume before the recognition period elapses.

According to the blower with the above-mentioned structure, even when the rotation speed of the motor is maintained while the command to increase the rotation speed of the motor is maintained, it can prevent the user from misrecognizing that the blower does not recognize the command.

In the blower with the above configuration, it is preferable to recognize whether the input sound is a control keyword during the recognition period of the predetermined control keyword after the wake-up keyword is recognized, and after the wake-up keyword is recognized, After the control keyword recognition period has elapsed, the operating state of the blower is changed to "the state after the "state change based on the control keyword" has been reflected to the original state".

The blower with the above structure can prevent the increase of noise from the blower by changing the operating state of the blower during the control keyword recognition period.

The blower of the present invention is a blower that operates by recognizing the user’s voice and receiving commands. One of its characteristics is that in order to improve the voice recognition rate and make the acquired voice clearer, it performs an action state for reducing noise change.

An implementation aspect and an embodiment of the blower of the present invention will be described in detail with reference to the drawings. However, the implementation modes and examples described below are only examples of the present invention, and do not limit the technical scope of the present invention. In addition, in each drawing, the same component system may be given the same reference numeral, and the description thereof may be omitted. In this manual, the so-called "sound" refers to human voice, that is, voice, and mechanical sounds such as noise.

＜1. Implementation status＞ ＜Blower 10＞ FIG. 1 is an external perspective view showing the structure of the blower 10 of this embodiment. FIG. 2 is a cross-sectional view of the blower 10. FIG. 3 is a block diagram showing the functional structure of the blower 10. As shown in FIGS. 1 and 2, the blower 10 includes a seat portion 20, a support column 30, and a blower 50. Specifically, the pillar 30 is installed upright on the seat portion 20, and the air blowing portion 50 is provided on the upper end side thereof. Although it cannot be confirmed from the appearance, the blower 10 has the control unit 100 and the storage unit 110 shown in the block diagram of FIG. 3. The wind direction changing unit 121 includes a left and right swing head mechanism portion 24 and a vertical swing head mechanism portion 42 which will be described later. The drive unit 120 includes a motor 22 for the left and right swing heads and a motor 40 for the swing head, which will be described later.

The blower 10 of this embodiment is an electric fan-type blower as shown in Figs. 1 and 2, but it can also be used in a circulator without a pillar 30, a humidifying device with a humidifying function, and a dehumidifying device with a dehumidifying function. Devices, air purifiers with air purifying function, and air conditioners (air conditioners, or air conditioners) with heating and/or cooling functions.

＜Seat part 20＞ The seat part 20 is a part of the seat of the blower 10. The seat portion 20 is configured in a circular plate shape having a circular and flat bottom surface. The pillar 30 is erected slightly behind the center of the seat portion 20. The pillar 30 may be configured to be detachably attachable to and detachable from the seat portion 20. On the top surface of the seat portion 20, an operation portion 60, an air volume display portion 65, a voice input portion 66, a volume measurement portion 66a, and a notification sound output portion 67 are provided. In addition, in the stand portion 20, the remote controller 62 is fixed to the back side of the position where the pillar 30 is erected. In the base portion 20, the right and left swing head motor 22, the left and right swing head mechanism portion 24, the control board 26, the power supply board 28, and the like are housed. In the control board 26, a microcomputer (semiconductor integrated circuit), electronic components, and the like corresponding to the control unit 100 described later are mounted. The power supply board 28 is equipped with a switching power supply circuit and the like for supplying electric power to various parts of the blower 10. In addition, the blower 10 may have a configuration without the remote controller 62.

＜Motor 22 for left and right swing head, 24 for left and right swing head mechanism＞ The left-right swing head motor 22 drives the left-right swing head mechanism part 24 and changes the direction of the air blowing part 50 to the left and right direction via the support 30. The motor 22 for the left-right head swing is, for example, a stepping motor. The motor 22 for the left and right swing heads rotates the left and right swing head mechanism parts 24 by transmitting power to the left and right swing head mechanism parts 24. When the left and right head swing mechanism 24 rotates, the pillar 30 rotates around its axis. Since the support column 30 is connected to the air blowing section 50, if the left-right swinging mechanism section 24 rotates, the air blowing section 50 rotates in the left-right direction to change the direction. The left and right head swing mechanism part 24 is a specific example of the "wind direction changing part 121" of the present invention. The motor 22 for the left and right swing head is a specific example of the "driving unit 120" of the present invention.

＜Operation part 60＞ The operation unit 60 includes a plurality of operation keys (buttons) that can be pressed and operated by the user. On one side of the operation key, there is arranged a text indicating the function of the operation key. When the operating unit 60 detects that the user operates the operating key, it outputs the detection result to the control unit 100.

＜Remote control 62＞ The remote controller 62 can wirelessly transmit commands to the blower 10 using infrared rays or the like. The blower 10 performs a predetermined operation in accordance with a command received from the remote controller 62. Regarding the general operation of the blower 10 performed by the remote controller 62, the description is omitted because it is a conventional technique.

<Air volume display unit 65> The air volume display unit 65 is arranged in the area where the operation unit 60 is arranged, and includes a plurality of (for example, ten) light emitting units. This light-emitting part is, for example, a light-emitting element such as an LED. The air volume display unit 65 displays the air volume of the blower 10 based on the number of lights lit by the plurality of light-emitting parts. Moreover, the air volume display part 65 can also be comprised by the display device etc. which can display a number, instead of the structure which displays the air volume by the number of lighting of a plurality of light-emitting parts. The air volume displayed by the air volume display unit 65 is controlled by the control unit 100 to display the air volume.

＜Sound input unit 66＞ The sound input unit 66 is a so-called microphone or the like, which converts ambient sound including the human voice of the user into an electrical signal and outputs it to the control unit 100. In the case where the voice input unit 66 is specifically used to acquire and recognize the human voice of the user, it may also have a configuration with a band-pass filter that acquires only the voice in the human voice frequency band. In addition, the sound input unit 66 may include various filters for reducing sound in a specific frequency band, and a mechanism for removing noise.

＜Volume measurement unit 66a＞ The volume measuring unit 66a measures the volume of the sound (noise) emitted from the blower 10 based on the sound obtained by the sound input unit 66. The volume measurement unit 66a outputs the measurement result to the control unit 100.

<Announcement sound output unit 67> The notification sound output unit 67 is a so-called speaker or the like, and outputs a notification sound based on the given electric signal. The notification sound output unit 67 emits a voice under the control of the control unit 100. The notification sound output unit 67 notifies a predetermined operation or status, etc. by mechanical sound or voice.

＜Pillar 30＞ The pillar 30 extends upward from the seat portion 20 in a columnar shape to support the blower 50. A storage portion 38 is provided near the upper end of the pillar 30.

＜Storage section 38＞ The accommodating part 38 accommodates the motor 40 for the vertical swing head and the vertical swing head mechanism 42.

<Motor 40 for vertical swing head, and swing head mechanism 42> The vertical head motor 40 drives the vertical head mechanism section 42 to change the direction of the air blowing section 50 in the vertical direction. The motor 40 for the up-and-down head is a stepping motor, for example. The vertical head motor 40 transmits power to the vertical head mechanism section 42 to rotate the vertical head mechanism section 42 in the vertical direction. Since the vertical swing head mechanism 42 is connected to the air blowing section 50, when the vertical swing head mechanism 42 rotates in the vertical direction, the blowing section 50 also rotates in the vertical direction to change the direction. Moreover, the vertical swing head mechanism 42 may have a ratchet mechanism etc. which a user can manually change a direction in an up-and-down direction. The up-and-down head mechanism part 42 is a specific example of the "wind direction changing part 121" of the present invention. The motor 40 for the up-and-down head is a specific example of the "drive unit 120" of the present invention.

＜Air supply unit 50＞ The blower 50 includes a fan guard 52, a blower motor 54 and a fan 56.

＜Fan guard 52＞ The fan guard 52 houses the fan 56 rotatably. The fan guard 52 is composed of a "front fan guard 52a located on the front side of the blower 10" and a "rear fan guard 52b located on the back side of the blower 10". The front fan guard 52a and the rear fan guard 52b are detachably connected to the blower 10, respectively.

＜Motor 54 for air supply＞ The blower motor 54 can rotate and drive the fan 56 by rotating. The air blowing motor 54 is, for example, a DC motor. The blower motor 54 can change the rotation speed in plural stages such as ten stages, for example. The rotation speed of the blower motor 54 is controlled by the control unit 100. By changing the rotation speed of the air blowing motor 54, the air volume of the air blower 10 is changed.

＜Fan 56＞ The fan 56 is a blower mechanism that is driven to rotate by the blower motor 54 and can blow the air toward the front side of the blower 10. The fan 56 is inclined with respect to the front of the blower.

＜Control part 100＞ The control unit 100 controls the operation of the blower 10. The control unit 100 is, for example, a microcomputer (semiconductor integrated circuit) or the like mounted on the control board 26. The control unit 100 can be realized by hardware or software. The control unit 100 executes the operation control of the air blower that the conventional air blower has, and the voice operation processing that is the feature of the present invention. The specific control performed by the control unit 100 will be described later.

＜Storage section 110＞ The storage unit 110 is a memory that can store various information under the control of the control unit 100. The storage unit 110 is ROM or RAM. The storage part 110 may be built in the control part 100, or different from the control part 100 and mounted on the control board 26. The storage unit 110 includes, for example, an operating state memory that can store the operating state of the blower 10 as information in a part of its memory area. In addition, the storage unit 110 stores wake-up keywords, control keywords, and actions corresponding to the input control keywords. In addition, the wake-up keyword and the control keyword can be determined in advance, and can also be changed by the user. In addition, the wake-up keywords and control keywords can also be optimized with the user's voice to make it easier to recognize.

＜Operation of blower 10＞ Next, referring to the flowchart of FIG. 4, the voice operation processing performed by the blower 10 of this embodiment will be described. The user can operate the blower 10 by pressing the operation key of the operating part 60, and the user can also operate the blower 10 by voice. In the case of operating the blower 10 by voice, the user issues a control keyword by following the wake-up keyword for starting the voice operation process to perform various actions corresponding to the control keyword.

＜S100～S110＞ The blower 10 outputs the sound acquired by the sound input unit 66 to the control unit 100 when the power is turned on, and waits for the user to input a wake-up keyword by human voice as the input sound (S100 to S110). The wake-up keyword is, for example, a voice such as "Alice".

＜S112＞ When the control unit 100 confirms that the voice input unit 66 has acquired the wake-up keyword (YES in S110), the current operating state is stored in the operating state memory of the storage unit 110 (S112). The action status stored in the action status memory is air volume, wind direction, and head swing state, etc. Furthermore, the control unit 100 changes the operation state when there is a factor that interferes with the speech acquisition by the sound input unit 66 in the operation state of the blower 10 (S112).

Here, the factors that interfere with the speech acquisition are, for example: (1) the rotating sound of the fan 56, (2) the operating sound of the blower motor 54, (3) the operating sound of the left and right head swing motor 22, and (4) the up and down head swing. Use the operating sound of the motor 40, (5) the operating sound of the left and right swinging head mechanism portion 24, (6) the operating sound of the up and down swinging head mechanism portion 42, or (7) the operating sound from the notification sound output portion 67, etc. Noise such as output sound, or (8) the wind direction of the blower 10, etc.

In the case of noises ((1) to (7)) such as the rotating sound of the fan 56, this noise will be mixed with the voice obtained by the voice input unit 66, making it difficult for the user to recognize the control keywords. Change the operating state to suppress the generation of such noise. Specifically, (1) reduce the rotation speed of the air blowing motor 54 in order to reduce the rotating sound of the fan 56, (2) reduce the rotation speed of the blowing motor 54 in order to reduce the rotation sound of the air blowing motor 54, and (3) reduce the rotation speed of the air blowing motor 54 Decrease the operating sound of the motor 22 for the left and right swing heads and reduce the rotation speed of the motor 22 for the left and right swing heads or stop the operation, (4) Lower the motor for the vertical swing heads in order to reduce the operating sound of the motor 40 for the up and down swing heads 40 or stop the movement, (5) in order to reduce the operating sound of the left and right swing head mechanism 24, or stop the movement of the left and right swing head mechanism 24, (6) in order to make the up and down swing head mechanism 42 To suppress or stop the movement of the upper and lower swing head mechanism 42 by reducing the operating sound, or (7) reduce the volume of the notification sound or stop the notification in order to suppress the notification sound such as the operation sound emitted from the notification sound output unit 67 The output of the sound changes the operating state of the blower 10 thereby. In other words, to reduce the air volume ((1) and (2)), suppress or stop the head swing movement ((3)～(6)), reduce or stop the operation sound and other notification sounds ((7)), change Action status.

Because (8) when the wind between the user and the sound input unit 66 is in a state where the wind passes due to the wind direction of the blower 10, the user’s human voice may not be sufficiently transmitted to the sound input unit 66, so by changing Wind direction suppresses the interference of voice acquisition. More specifically, the control unit 100 operates the left-right swinging head motor 22 or the vertical swinging head motor 40, and drives the left-right swinging head mechanism portion 24 or the vertical swinging head mechanism portion 42 to change the wind direction, thereby becoming the wind It does not pass through the state between the user and the voice input unit 66.

＜S114＞ Next, in order to measure the time of "waiting for the input of the control keyword following the wake-up keyword", the control unit 100 resets the timer (S114). Moreover, in the case of returning to S114 from S132 or S134, the timer is reset in order to measure the time for waiting for the input of the next control keyword.

＜S120＞ Next, the control unit 100 waits for the input of the control keyword by the user. Specifically, the voice acquired by the voice input unit 66 is output to the control unit 100, and the control unit 100 confirms whether the voice contained in the voice matches the pre-registered control keyword (S120). The control keyword is stored in the storage unit 110 together with the command corresponding to the control keyword. The control unit 100 compares the information stored in the storage unit 110 with the sound acquired by the voice input unit 66 to confirm whether the acquired voice is a control keyword. The confirmation of the control key is continued for a predetermined time (for example, 6 seconds) (S140). This period of waiting for the input of the control keyword is called the control keyword recognition period.

＜S120～S134＞ If the control keyword is input by voice (Yes in S120) during the control keyword recognition period within a predetermined time (for example, within 6 seconds) from the reset of the timer, it is to confirm whether the control keyword is related to a specific Action-related control keywords (S130). The so-called control keywords related to specific actions are control keywords corresponding to "actions that interfere with speech acquisition." Specifically: (1) an action to increase the air volume, (2) an action to change the shape of the head swing, or (3) an action to change the wind direction. When the input control keyword is related to a specific action (Yes in S130), the action corresponding to the control keyword is not performed, but the action state memory stored in the storage unit 110 is updated (S134), and Return to the processing of S114. On the other hand, when the input control keyword is not related to a specific action (No in S130), the action state is changed corresponding to the control keyword (S132), and the process returns to S114. At this time, the control unit 100 changes the operating state memory of the storage unit 110. In addition, in either case of S132 and S134, the control unit 100 changes the air volume display in the air volume display unit 65.

＜S140～S150＞ During the control keyword recognition period, if the control keyword is not input by voice (Yes in S140), the control unit 100 confirms the action state memory stored in the storage unit 110, and performs a response to the content of the action state memory Change of action status (S142). As described above, since the air volume, wind direction, and head swing motion state are stored in the operating state memory, the air volume, wind direction, and head swing motion state, etc. are changed based on this content. After the operation state is changed, the control unit 100 ends the voice operation process.

Next, the processing after the above S120 will be explained more specifically. When the control keyword corresponds to (1) the action of increasing the air volume, in order to increase the air volume, the rotation speed of the blowing motor 54 and the rotation speed of the fan 56 increase, and the rotation sound of the fan 56 and the rotation sound of the blowing motor 54 are increased. Get bigger. In this way, due to the rotating sound of the fan 56 and the blower motor 54, noise is mixed into the voice obtained by the voice input unit 66, making it difficult for the user to recognize the control keyword. Therefore, even if the control keyword to increase the air volume is input, the air volume will not be increased immediately, but after the control keyword recognition period (6 seconds from the timer reset) has elapsed, processing is performed to increase the air volume (refer to S142 described later) .

In addition, when the control keyword is (2) the action of changing the state of the swing head, in order to change the state of the swing head, sometimes the left and right swing head motors 22, the left and right swing head mechanism parts 24, and the vertical swing head are changed. The operating sound from the head motor 40 and the vertical swing head mechanism 42 becomes louder. In this way, due to the action sounds, noise will be mixed into the voice obtained by the voice input unit 66, making it difficult for the user to recognize the control keywords. Therefore, even if a control keyword for changing the state of the swing head is input, the state of the swing head will not be changed immediately, but after the control keyword recognition period has elapsed, processing is performed to change the state of the swing head.

In addition, when the control keyword is (3) the action of changing the wind direction, the wind direction may be changed, and the wind may pass between the user and the voice input unit 66. As a result, the human voice of the user may not be sufficiently transmitted to the voice input unit 66 in some cases. Therefore, even if the control keyword for changing the wind direction is input, the state of the head swing will not be changed immediately, but after the control keyword recognition period has passed, processing is performed to change the wind direction.

In addition, only when the air volume is greater than or equal to the predetermined air volume (for example, the air volume in 10 stages is 6 or more), the change of the operating state in S112 may be performed. Similarly, only when the air volume after the change is greater than or equal to the predetermined air volume (for example, the air volume in 10 stages is 6 or more), the immediate change of the operating states of S130 to S134 and S142 may be prohibited.

In addition, it is also possible to change the operating state in S112 only when the state of the head swing is at a speed higher than a certain level and a noise above a certain level is emitted. Similarly, it is also possible to prohibit the real-time change of the operation state of S130 to S134 and S142 only when the state of the swing head after the change is a certain speed or more.

<2. Example> Next, with respect to the behavior of the blower 10 described in the above-mentioned embodiment, further specific examples are given for description.

<(1) Example 1> In the first embodiment, an example of the operation when the user then wakes up the keyword and performs the voice input of "the control keyword for enhancing the air volume of the blower 10".

First, the user makes a sound like "Alice" as a wake-up keyword. The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms that the voice is a wake-up keyword (S110), and stores the operation state in the operation state memory of the storage unit 110 (S112). The control unit 100 further reduces the rotation speed of the air blowing motor 54 to reduce the air volume (for example, from an air volume 7 to an air volume 5) to suppress the sound from the air blowing motor 54 and the fan 56 (S112). In addition, the control unit 100 resets the timer (S114) and waits for the input of the control keyword.

Then, the user makes a sound like "enhanced air volume". The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms the control keyword stored in the storage unit 110 and the operation corresponding to the control keyword, and confirms that the voice input increases the rotation speed of the air blowing motor 54 (S120). Here, the control unit 100 determines that the operation of increasing the rotation speed of the air blowing motor 54 is a specific operation (S130), so the rotation speed of the blowing motor 54 is not immediately increased, but the operation state memory of the storage unit 110 is performed Update (S134). In addition, the control unit 100 changes the air volume display in the air volume display unit 65 to the changed air volume. In addition, the control unit 100 resets the timer again (S114), and waits for the next control keyword input.

Since there is no input of the next control keyword from the input of the previous control keyword to the recognition period of the control keyword (a period of 6 seconds) (Yes in S140), the control unit 100 performs the response storage unit 110 The operating state of the operating state memory is changed (S142). Here, in the operating state memory, the control key corresponding to the increased air volume is stored, and the increased air volume (for example, the air volume 8) before the reduced air volume (for example, the air volume 7). Moreover, the control part 100 increases the rotation speed of the motor 54 for air blowing, and changes it to this air volume (for example, the air volume 8).

<(2) Example 2> In the second embodiment, as in the first embodiment, the operation example when the user then wakes up the keyword and performs the voice input of "the control keyword for enhancing the air volume of the blower 10" is described. However, it is different from the first embodiment in the point that "the air volume is not changed after the wake-up keyword is confirmed."

First, the user makes a sound like "Alice" as a wake-up keyword. The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms that the voice is a wake-up keyword (S110), and stores the operation state in the operation state memory of the storage unit 110 (S112). The control unit 100 refers to the storage unit 110, and the change reference system for confirming the operating state when the wake-up keyword is confirmed is set to 6 or more of the air volume. At this time, since the air volume of the blower 10 is 5, the control unit 100 does not change the air volume but maintains it, that is, does not change the rotation speed of the air blowing motor 54, resets the timer (S114), and waits for the control keyword input.

Then, the user makes a sound like "enhanced air volume". The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms the control keyword stored in the storage unit 110 and the operation corresponding to the control keyword, and confirms that the voice input increases the rotation speed of the air blowing motor 54 (S120). Next, the control unit 100 refers to the storage unit 110 and confirms that the specific operation is set to an operation such that the air volume becomes 6 or more. Here, if the air volume is increased from the air volume 5 before the change, the air volume becomes 6, so the control unit 100 only updates the operating state memory of the storage unit 110, and does not change the air volume (Yes in S130, S134 ). That is, the control unit 100 updates the value of the air volume in the operating state memory of the storage unit 110 to the air volume 6. In addition, the control unit 100 changes the air volume display in the air volume display unit 65 so that it becomes the air volume 6.

Since there is no input of the next control keyword from the input of the previous control keyword to the recognition period of the control keyword (a period of 6 seconds) (Yes in S140), the control unit 100 performs the response storage unit 110 The operating state of the operating state memory is changed (S142). Here, although the air volume 6 is stored as the value of the air volume in the operating state memory, the blower 10 operates with the air volume 5. In addition, the control unit 100 increases the rotation speed of the air blowing motor 54 to change the operating state to the air volume 6 stored in the operating state memory.

<(3) Example 3> In the third embodiment, an example of the operation when the user then wakes up the keyword and performs the voice input of "the control keyword for reducing the air volume of the blower 10". In addition, the processing until the "control executed by the control keyword" is performed is the same as that of the second embodiment, but it is different from the second embodiment in that the process of reducing the air volume is performed.

First, the user makes a sound like "Alice" as a wake-up keyword. The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms that the voice is a wake-up keyword (S110), and stores the operation state in the operation state memory of the storage unit 110 (S112). The control unit 100 refers to the storage unit 110, and the change reference system for confirming the operating state when the wake-up keyword is confirmed is set to 6 or more of the air volume. At this time, since the air volume of the blower 10 is 5, the control unit 100 does not change the air volume but maintains it, that is, does not change the rotation speed of the air blowing motor 54, resets the timer (S114) and waits for the control keyword input.

Then, the user makes a sound like "decrease the air volume". The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms the control keyword stored in the storage unit 110 and the operation corresponding to the control keyword, and confirms that the voice input reduces the rotation speed of the air blowing motor 54 (S120). Here, the control unit 100 refers to the storage unit 110, and confirms that the specific operation is set to an operation such that the air volume becomes 6 or more. Here, if the air volume decreases from the air volume 5 before the change, the air volume becomes 4, so the control unit 100 reduces the rotation speed of the air blowing motor 54 to change the air volume (No in S130, S132). In addition, the control unit 100 updates the value of the air volume in the operating state memory of the storage unit 110 to the air volume 4. In addition, the control unit 100 changes the air volume display in the air volume display unit 65 so that it becomes the air volume 4.

Since there is no input of the next control keyword from the input of the previous control keyword to the recognition period of the control keyword (a period of 6 seconds) (YES in S140), the control unit 100 wants to perform the corresponding storage unit 110 The operating state of the operating state memory is changed (S142). Here, the air volume 4 is stored in the operating state memory as the value of the air volume, and the blower 10 operates with the air volume 4. In addition, the control unit 100 ends the processing without changing the rotation speed of the air blowing motor 54 (S150).

<(4) Example 4> In the fourth embodiment, an example of the operation when the user then wakes up the keyword and performs the voice input of "change the air volume of the blower 10 to the control keyword of the air volume 1".

First, the user makes a sound like "Alice" as a wake-up keyword. The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms that the voice is a wake-up keyword (S110), and stores the operation state in the operation state memory of the storage unit 110 (S112). The control unit 100 refers to the storage unit 110, and the change reference system for confirming the operating state when the wake-up keyword is confirmed is set to 6 or more of the air volume. At this time, since the air volume of the blower 10 is 7, the control unit 100 reduces the rotation speed of the air blowing motor 54 in order to change the air volume to 5. In addition, the control unit 100 resets the timer (S114) and waits for the input of the control keyword.

Next, the user makes a sound "make the air volume 1". The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms the control keyword stored in the storage unit 110 and the operation corresponding to the control keyword, and confirms that the voice input changes the rotation speed of the blower motor 54 to a predetermined value (S120). Here, the control unit 100 refers to the storage unit 110, and confirms that the specific operation is set to an operation such that the air volume becomes 6 or more. Here, even if the air volume is changed to 1 air volume, the air volume is less than 6. Therefore, the control unit 100 reduces the rotation speed of the air blowing motor 54 to the rotation speed of the air volume 1 to change the air volume (No in S130, S132). In addition, the control unit 100 updates the value of the air volume in the operating state memory of the storage unit 110 to the air volume 1. In addition, the control unit 100 changes the air volume display in the air volume display unit 65 so that it becomes the air volume 1.

Since there is no input of the next control keyword from the input of the previous control keyword to the recognition period of the control keyword (a period of 6 seconds) (YES in S140), the control unit 100 wants to perform the corresponding storage unit 110 The operating state of the operating state memory is changed (S142). Here, the air volume 1 is stored as the value of the air volume in the operating state memory, and the blower 10 is operating at the air volume 1. In addition, the control unit 100 ends the processing without changing the rotation speed of the air blowing motor 54 (S150).

<(5) Example 5> In the fifth embodiment, an operation example when the user then wakes up the keyword and performs the voice input of "change the air volume of the blower 10 to increase the control keyword from 4 to 2 stages".

First, the user makes a sound like "Alice" as a wake-up keyword. The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms that the voice is a wake-up keyword (S110), and stores the operation state in the operation state memory of the storage unit 110 (S112). The control unit 100 refers to the storage unit 110, and the change reference system for confirming the operating state when the wake-up keyword is confirmed is set to 6 or more of the air volume. At this time, since the air volume of the blower 10 is 4, the control unit 100 does not change the air volume but maintains it, that is, does not change the rotation speed of the air blowing motor 54, resets the timer (S114), and waits for the control keyword input.

Then, the user makes a sound like "enhanced air volume". The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms the control keyword stored in the storage unit 110 and the operation corresponding to the control keyword, and confirms that the voice input increases the rotation speed of the air blowing motor 54 (S120). Here, the control unit 100 refers to the storage unit 110, and confirms that the specific operation is set to an operation such that the air volume becomes 6 or more. Here, even if the air volume is increased by one step from the air volume 4 before the change, the air volume is only 5, so the control unit 100 increases the rotation speed of the air blowing motor 54 to change the air volume (No in S130, S132). In addition, the control unit 100 updates the value of the air volume in the operating state memory of the storage unit 110 to the air volume 5. In addition, the control unit 100 changes the air volume display in the air volume display unit 65 so as to set the air volume to 5.

Furthermore, the user makes a sound like "enhanced air volume". The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms the control keyword stored in the storage unit 110 and the operation corresponding to the control keyword, and confirms that the voice input increases the rotation speed of the air blowing motor 54 (S120). Here, the control unit 100 refers to the storage unit 110, and confirms that the specific operation is set to an operation such that the air volume becomes 6 or more. Here, if the air volume rises from the air volume 5 before the change, the air volume becomes 6, so the control unit 100 only updates the operating state memory of the storage unit 110, and does not change the air volume (Yes in S130, S134 ). That is, the control unit 100 updates the value of the air volume in the operating state memory of the storage unit 110 to the air volume 6. In addition, the control unit 100 changes the air volume display in the air volume display unit 65 so that it becomes the air volume 6.

Since there is no input of the next control keyword from the input of the previous control keyword to the recognition period of the control keyword (a period of 6 seconds) (Yes in S140), the control unit 100 performs the response storage unit 110 The operating state of the operating state memory is changed (S142). Here, although the air volume 6 is stored as the value of the air volume in the operating state memory, the blower 10 operates with the air volume 5. In addition, the control unit 100 increases the rotation speed of the air blowing motor 54 to change the operating state to the air volume 6 stored in the operating state memory.

<(6) Example 6> In the sixth embodiment, an operation example when the user then wakes up the keyword and performs the voice input of "change the wind direction of the blower 10 to the upper control keyword" is described.

First, the user makes a sound like "Alice" as a wake-up keyword. The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms that the voice is a wake-up keyword (S110), and stores the operation state in the operation state memory of the storage unit 110 (S112). The control unit 100 refers to the storage unit 110, and the change reference for confirming the operating state when the wake-up keyword is confirmed is set to "air volume 6 or more" and "change the wind direction to the most upward". At this time, since the air volume of the blower 10 is 7, the control unit 100 reduces the rotation speed of the air blowing motor 54 in order to change the air volume to 5. Furthermore, the control unit 100 controls the drive unit 120 to actuate the wind direction changing unit 121 to change the direction of the fan 56 so that the wind direction becomes the most upward. In addition, the control unit 100 resets the timer (S114) and waits for the input of the control keyword.

Then, the user makes a sound like "make the wind upward." The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms the control keywords stored in the storage unit 110 and the actions corresponding to the control keywords, and confirms that the voice input controls the drive unit 120 to actuate the wind direction changing unit 121 to change the direction of the fan 56 and make the wind direction. Up (S120). Here, the control unit 100 refers to the storage unit 110 and confirms that the change of the wind direction is included in the specific operation. In addition, the control unit 100 only updates the operating state memory of the storage unit 110, and does not change the wind direction (Yes in S130, S134). That is, the control unit 100 updates the wind direction in the operating state memory of the storage unit 110 to the previous stage.

Since there is no input of the next control keyword from the input of the previous control keyword to the recognition period of the control keyword (a period of 6 seconds) (Yes in S140), the control unit 100 performs the response storage unit 110 The operating state of the operating state memory is changed (S142). Here, the operation state of the wind direction up one stage is stored in the operation state memory. In addition, the control unit 100 controls the drive unit 120 to actuate the wind direction changing unit 121 so that the direction of the fan 56 is lowered, and the wind direction becomes one step higher than the original state.

<(7) Example 7> In the seventh embodiment, an example of the operation when the user then wakes up the keyword and performs the voice input of "change the control keyword of the head swing motion of the blower 10".

First, the user makes a sound like "Alice" as a wake-up keyword. The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms that the voice is a wake-up keyword (S110), and stores the operation state in the operation state memory of the storage unit 110 (S112). The control unit 100 refers to the storage unit 110, and the change reference system for confirming the operating state when the wake-up keyword is confirmed is set to "air volume 6 or more", "change the wind direction to the most upward", and "prohibit head swing action (wind direction change action) )". At this time, since the air volume of the blower 10 is 7, the control unit 100 reduces the rotation speed of the air blowing motor 54 to reduce the air volume to 5. In addition, the driving unit 120 is controlled to actuate the wind direction changing unit 121 to stop the head swing operation, and the wind direction is changed so that the direction of the fan 56 becomes the most upward. In addition, the control unit 100 resets the timer (S114) and waits for the input of the control keyword.

Then, the user made a sound like "change head swing". The voice input unit 66 obtains this voice and outputs it to the control unit 100. The control unit 100 confirms the control keyword stored in the storage unit 110 and the operation corresponding to the control keyword, and confirms that the voice input is to perform a predetermined head swing operation for reciprocating the driving unit 120 (S120). Here, the control unit 100 refers to the storage unit 110 and confirms that the state of changing the swing head is included in the specific motion. In addition, the control unit 100 only updates the operating state memory of the storage unit 110, and does not change the state of the head swing (Yes in S130, S134). That is, the control unit 100 updates the head swing movement in the operation state memory of the storage unit 110 to a predetermined state.

Since there is no input of the next control keyword from the input of the previous control keyword to the recognition period of the control keyword (a period of 6 seconds) (Yes in S140), the control unit 100 performs the response storage unit 110 The operating state of the operating state memory is changed (S142). Here, in the action state memory, the action state in which the state of the head swing action is set to the predetermined state is stored. In addition, the control unit 100 controls the drive unit 120 to actuate the wind direction changing unit 121 so that the state of the head swing becomes a predetermined state.

＜3. Modifications＞ Next, a modification of the above-mentioned embodiment will be described. In this modified example, the configuration is the same as that of the embodiment, but when the ambient sound is actually acquired using the volume measurement unit 66a, and the volume of the sound emitted from the blower 10 is greater than or equal to the predetermined threshold, the operation is suppressed. The point of "producing sound" is different from the implementation state. Hereinafter, the description will be centered on this difference.

In the configuration of the embodiment, the control unit 100 changes the operating state based on the pre-given condition when the wake-up keyword is confirmed. Furthermore, the control unit 100 prohibits the immediate change of the action state when the control keyword is confirmed and it is a preset control keyword related to a specific action. In this modification, the control unit 100 measures the volume of the generated sound from the blower 10 based on the volume measured by the volume measurement unit 66a, and if the measurement result is more than a certain level, performs a feedback action to suppress Produce tone.

That is, after the control unit 100 confirms the wake-up keyword, the volume measurement unit 66a measures the sound generated from the blower 10, and when the generated sound exceeds a predetermined threshold value, performs one or more of the following controls: Lower the blower motor 54, the operation of the driving unit 120 is suppressed or stopped, and the operation of the notification sound output unit 67 is suppressed or stopped. Thereby, the control unit 100 can suppress the sound generated from the blower 10, and easily obtain the voice uttered by the user.

Similarly, when the control unit 100 confirms the control keyword, the control unit 100 will perform an action corresponding to the control keyword. However, as a result, if the volume of the sound measured by the volume measurement unit 66a is a certain level or more, it is Return the action state to the original state. At this time, the control unit 100 stores the changed operating state in the operating state memory.

In addition, in the above-mentioned operation, the threshold value for suppressing the volume of the generated sound from the blower 10 can be arbitrarily changed.

<4. Features of the present invention> The present invention, which has exemplified and described embodiments, examples, and modifications above, has the following characteristics.

In the above-mentioned air blower 10, the control unit 100 changes the operating state of the air blower 10 when it determines that there is a factor that interferes with the voice acquisition by the sound input unit 66 in the operating state of the air blower 10. With this configuration, for example, there is "the volume of the noise emitted from the blower 10 is louder" or "the wind from the fan 56 is in a passing state between the user performing the voice input and the voice input unit 66." In the case of factors that interfere with the acquisition of the voice, the action can be performed to change the action state to reduce the noise. Thereby, the voice input unit 66 can easily obtain a clear input voice. Furthermore, the speech recognition rate of the blower 10 can be improved.

In addition, in the above-mentioned air blower 10, it is possible to set it as the structure which "changes the rotation speed of the motor 54 for air blowing as a change of an operating state". According to this structure, the noise generated by the rotation of the blower motor 54 and the fan 56 can be suppressed, and a clear input voice can be obtained relatively easily.

In addition, in the above-mentioned air blower 10, it is possible to adopt a configuration that "changes the wind direction as the change of the operating state". According to this configuration, by changing the blowing direction to any direction, the wind does not pass between the user and the voice input unit, and the user's human voice can be more easily transmitted to the voice input unit 66 clearly.

In addition, in the above-mentioned air blower 10, it is possible to set the operating state change to suppress or prohibit (stop) the driving of the wind direction changing section 121 (at least one of the left and right swinging head mechanism part 24 and the up and down swinging head mechanism part 42). The operation of the section 120 (at least one of the left and right swing head motor 22 and the vertical swing head motor 40)". According to this configuration, when the driving unit 120 drives the wind direction changing unit 121, noise generated from the driving unit or the wind direction changing can be suppressed. In this way, it is easier to obtain a clear input voice.

In addition, in the above-mentioned blower 10, the change of the operating state can be suppressed or prohibited (stopped) the notification sound from the notification sound output unit 67. The operation sound and other sounds output from the blower 10 can be prevented from being mixed into the input voice, and a clear input voice can be easily obtained.

In addition, in the above-mentioned air blower 10, when the wake-up keyword is recognized, it is also possible to judge the sound generated from the air blower 10, and to change the operating state as necessary. After recognizing the wake-up keywords that particularly want to increase the voice recognition rate, the control keywords input by the user can be easily and clearly obtained.

Furthermore, as described in the above modification, the blower 10 may be provided with a sound volume measurement unit 66a, and based on the measurement result of the sound volume measurement unit 66a, it is determined whether the sound generated from the blower 10 exceeds a predetermined value. According to this structure, while dynamically confirming the noise around the blower 10 and the noise emitted from the blower 10, it is possible to change the operating state of the blower 10 for noise suppression only in an environment where it is difficult to obtain a clear input voice.

In addition, in the blower 10 of the above-mentioned modification, the sound volume measurement unit 66a may measure the sound volume of the surrounding sound based on the sound acquired by the sound input unit 66. According to this structure, the volume of the noise around the blower 10 and the sound emitted from the blower 10 can be measured without adding a special structure for volume measurement.

In addition, in the above-mentioned air blower 10, it is also possible to change the threshold value of the sound used as a reference for changing the operating state.

In addition, in the above-mentioned air blower 10, the operation state may be changed (for example, the rotation speed of the blower motor 54) after the control keyword recognition period has elapsed. According to this configuration, it is possible to set the operation state to suppress noise during the control keyword recognition period, and perform an operation to return to the original operation state after the control keyword recognition period ends.

In addition, in the above-mentioned blower 10, a command to change the rotation speed of the blowing motor 54 is input as the control keyword, and if the rotation speed of the blowing motor 54 after the change is greater than a predetermined value, it is the control keyword recognition period After the passage, the rotation speed of the air blowing motor 54 is changed. That is, especially when the rotation speed of the blower motor 54 that is prone to generate noise is increased to a predetermined value or more, the rotation speed of the blower motor 54 is not immediately increased by operating so as to prevent the blower motor 54 from being used immediately. A situation where the speed increases and the noise becomes louder.

In addition, in the blower 10 described above, even if the air volume is changed during the control keyword recognition period, the display of the air volume display unit 65 may be set to the changed value immediately after the control keyword recognition. According to this structure, for example, even when the rotation speed of the blowing motor 54 is increased while the rotation speed of the blowing motor 54 is maintained, it is possible to prevent the user from mistakenly recognizing that the blower 10 does not recognize the command.

＜5. Supplementary matters＞ In the foregoing, a detailed description has been given of the embodiments, examples, and modifications of the present invention. These implementation aspects are only specific examples of a configuration example and an operation example of the present invention. The scope of the present invention is not limited to these implementation aspects, and can be based on the same technology by those with ordinary knowledge in the technical field. Explain widely within the scope of thinking and grasping.

10: Blower 20: Seat 22: Motor for swing head 24: Swing head mechanism department 26: control board 28: Power supply board 30: Pillar 38: Storage Department 40: Motor for swing head 42: Swing head mechanism 50: Air supply department 52: Fan guard 52a: Front fan guard 52b: Rear fan guard 54: Air supply motor 56: Fan 60: Operation Department 62: remote control 65: Air volume display 66: Voice input section 66a: Volume measurement department 67: Notification sound output section 100: Control Department 110: Storage Department 120: Drive 121: Wind Direction Change Department

Figure 1 is a perspective view of the appearance of the blower. Figure 2 is a cross-sectional view of the blower. Figure 3 is a block diagram showing the functional composition of the blower. Figure 4 is a flowchart showing the voice operation processing performed by the blower. Fig. 5 is a sequence diagram of the blower operated by the operator in the first embodiment. Fig. 6 is a sequence diagram of the blower operated by the operator in the second embodiment. Fig. 7 is a sequence diagram of the blower operated by the operator in the third embodiment. Fig. 8 is a sequence diagram of the blower operated by the operator in the fourth embodiment. Fig. 9 is a sequence diagram of the blower operated by the operator in the fifth embodiment. Fig. 10 is a sequence diagram of the blower operated by the operator in the sixth embodiment. Fig. 11 is a sequence diagram of the blower operated by the operator in the seventh embodiment.

10: Blower

20: Seat

30: Pillar

38: Storage Department

50: Air supply department

52: Fan guard

52a: Front fan guard

52b: Rear fan guard

60: Operation Department

62: remote control

65: Air volume display

66: Voice input section

67: Notification sound output section

Claims (13)

A blower, including: Fan for air supply; Motor, used to drive the fan; The voice input part is used to obtain the input sound; and The control unit performs predetermined control based on the input sound; The control unit changes the operation state of the air blower when there is a factor that interferes with the voice acquisition of the voice input unit in determining the operation state of the air blower. The blower described in claim 1, wherein: The change of the action state is the change of the rotation speed of the motor. The blower described in claim 1, further including: The wind direction changing part is used to change the direction of air supply; The change of the operation state is the change of the blowing direction by the wind direction changing part. The blower described in claim 1, further including: The wind direction changing part is used to change the air supply direction; and The driving part is used to drive the wind direction changing part; The change of the operation state is to inhibit or prohibit the operation of the drive unit. The blower described in claim 1, further including: Announcement sound output unit for outputting announcement sound; The change of the operation state is to suppress or prohibit the output of the notification sound. The blower according to any one of claims 1 to 5, wherein: The control unit can recognize that the input sound is a wake-up keyword, In addition, when the control unit recognizes the wake-up keyword, it determines whether the volume of the sound generated from the blower exceeds a predetermined threshold. The blower described in claim 6, further including: The volume measuring part measures the volume of surrounding sounds; The control unit determines whether the volume of the sound generated by the blower exceeds the critical value based on the measurement result of the volume measurement unit. The blower described in claim 7, wherein: The volume measurement unit measures the volume of surrounding sounds based on the input sound. The blower according to any one of claims 1 to 5, wherein: The threshold can be changed by setting. The blower described in claim 6, wherein: The control department, When the wake-up keyword is confirmed and the established control keyword cannot be recognized, the predetermined time is set as the control keyword recognition period from the confirmation of the wake-up keyword; when the control keyword is recognized, the system After confirming the control keyword, set the predetermined time as the control keyword recognition period; After the control keyword recognition period has elapsed, the operating state of the blower is made to reflect the original state in response to the state change of the control keyword. The blower described in claim 10, wherein: When the control key is a command to change the rotation speed of the motor, and the rotation speed of the motor after the change is greater than a predetermined value, the control unit changes the rotation speed of the motor after the control key recognition period has elapsed. The blower described in claim 11 further includes: The air volume display part is used to display the air volume; When the control keyword is a command to change the rotation speed of the motor, the air volume display unit changes the display of the air volume before the control keyword recognition period elapses. The blower described in claim 6, wherein: The control department, During the predetermined control keyword recognition period after the awakening keyword recognition, the recognition of whether the input voice is a control keyword is performed; After the wake-up keyword is recognized, and after the control keyword recognition period has elapsed, the action state of the blower is changed to a state that reflects the original state in response to the state change of the control keyword.

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