WO2021024605A1

WO2021024605A1 - Illumination device

Info

Publication number: WO2021024605A1
Application number: PCT/JP2020/022586
Authority: WO
Inventors: 奥村　明彦; 光哉立花
Original assignee: アイリスオーヤマ株式会社
Priority date: 2019-08-08
Filing date: 2020-06-08
Publication date: 2021-02-11
Also published as: JP7112740B2; JP2021026996A; CN114072617A

Abstract

Provided is an illumination device that can prevent dust from accumulating on a sound collecting surface of a voice input body. This illumination device comprises a lighting control unit that, in accordance with a user's voice, controls lighting power which is supplied to a light source unit by a lighting power generation unit, wherein: a voice input body (75), to which the voice is inputted, is provided to a case (41) in a state where a sound collecting surface (751) is exposed from an opening of the case (41); and the sound collecting surface (751) is positioned further inward than the opening edge of the outer surface (471a) of the case (41).

Description

Lighting device

The present invention relates to a lighting device with a voice recognition function.

As a lighting device with a voice recognition function, for example, "a suspension base installed on a ceiling surface and an instrument body that is suspended from the suspension base and electrically connected to the suspension base are provided. In a hanging elevating type lighting fixture formed so that the horizontally projected area of the fixture body is larger than the horizontally projected area of the hanging base, the hanging base is provided with a voice control means provided with a microphone and a voice recognition unit. A hanging and elevating lighting fixture has been proposed, wherein the voice control means recognizes a human voice to turn off the lights and commands the elevating operation to control the turning off of the main body of the fixture and the elevating operation. (For example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2006-286274

However, in Patent Document 1, it is stated that "the microphone 11 is attached with the sound collecting surface exposed at an appropriate position on the side surface of the hanging base portion 2", and dust is accumulated on the sound collecting surface. There was a problem.
An object of the present invention is to provide a lighting device capable of preventing dust from accumulating on a sound collecting surface of a voice input body.

The lighting device according to the present invention is a lighting device including a lighting control unit that controls the lighting power supplied to the light source unit by the lighting power generation unit according to the voice of the user, and the voice input body into which the voice is input is a case. The case is provided with the sound collecting surface exposed from the opening of the case, and the sound collecting surface is located at the same position as the opening edge of the outer surface of the case or inside the opening edge.
The lighting device according to the present invention is a lighting device including a lighting control unit that controls the lighting power supplied to the light source unit by the lighting power generation unit according to a user's voice. The voice input body into which the sound is input is a case. The case is provided with the sound collecting surface exposed from the opening of the sound collecting surface, and the downstream end in the gravity direction on which gravity acts passes through the upstream end in the gravity direction and is parallel to the gravity direction. It is located on the virtual line or inside the case from the virtual line.

According to the above configuration, dust is unlikely to accumulate on the sound collecting surface.

It is a perspective view of the lighting apparatus which concerns on embodiment, (a) is a view seen from the front side, and (b) is a view seen from the back side. It is a perspective view which looked at the disassembled state of a lighting device from the front side. It is a perspective view which looked at the disassembled state of a lighting device from the back side. It is the figure which looked at the lighting device from the back side. It is a figure which looked at the cross section of line AA of FIG. 4 from the direction of an arrow. It is a perspective view of the base resin material seen from the front side. It is a perspective view which looked at the base resin material from the back side. It is a perspective view which looked at the disassembled state of a power supply unit from the front side. It is a perspective view which looked at the disassembled state of a power supply unit from the back side. (A) is a cross-sectional view of a microphone arrangement portion in the power supply unit, and (b) is an enlarged perspective view of the cross section viewed from the back side. It is a block diagram of a power supply unit and a voice recognition unit. It is a flowchart of the voice recognition part of Example 1 of Embodiment. It is a flowchart of the voice recognition part of Example 2 of Embodiment. It is a flowchart of the voice recognition part of Example 2 of 2nd Embodiment. It is a flowchart of the voice recognition part of Example 3 of 2nd Embodiment.

<Overview>
In the lighting device according to another aspect of the embodiment, the voice input body is fixed to a support portion that supports the voice input body with an elastic adhesive. As a result, the voice input body can be fixed with a structure that makes it difficult to collect vibrations.
In the lighting device according to another aspect of the embodiment, the case is a power supply case that houses a power supply circuit having the lighting power generation unit and the lighting control unit, and has a power supply base having the support unit and the power supply base. A power supply cover having a through hole for accommodating the voice input body supported by the support portion is provided, and the through hole is an opening of the power supply case, which is one of the voice input body and the support portion. Fits with the part. As a result, the voice input body can be supported and accommodated without providing a case for the voice input body.
In the lighting device according to another aspect of the embodiment, the voice recognition circuit for recognizing the voice is housed in the power supply case, and the voice recognition circuit is arranged between the voice input body and the power supply circuit. As a result, the voice recognition circuit can be accommodated without providing a case for the voice recognition circuit. Further, the audio input body can be arranged in a state of being separated from the power supply circuit.

In the lighting device according to another aspect of the embodiment, the voice recognition circuit receives the control word for a predetermined time after recognizing the wakeup word. Since it is not necessary to pronounce the wakeup word each time it is controlled, convenience can be improved.
In the lighting device according to another aspect of the embodiment, the voice recognition circuit causes the voice output body to output an alert sound when the wake-up word or the control word is recognized. As a result, the user can be notified that the lighting device has recognized the voice.
In the lighting device according to another aspect of the embodiment, the voice recognition circuit causes the voice output body to output an alert sound when the control word cannot be recognized after recognizing the wakeup word. As a result, the user can be notified that the lighting device cannot recognize the voice.
In the lighting device according to another aspect of the embodiment, when the lighting control unit or the voice recognition circuit is an instruction that the control word received after recognizing the wakeup word cannot be controlled by the lighting control unit. The alert sound is output to the audio output device. As a result, the user can recognize that the instruction is incorrect. Therefore, for example, the user does not have to give an instruction to further increase the brightness after reaching the upper limit of the brightness.

<Embodiment>
In the embodiment, a so-called ceiling light, which is attached to a surface to be attached such as a ceiling via an attachment member (hooking blade), will be described as an example. The lighting device is mounted on the ceiling or the like and electrically connected to a commercial power source by inserting and rotating the hook blade into the mounting groove of the hook ceiling or the like provided on the ceiling or the like.
Here, the side where the ceiling or the like is located is the back side, and the side where the light is emitted from the lighting device X in the main emission direction is the front side.

1. 1. As shown in FIG. 1, the overall lighting device X includes an instrument main body 1 and a translucent cover 8. The hook blade 49 is provided on the instrument main body 1.
This will be described with reference to FIGS. 2 and 3.
The instrument main body 1 includes at least a base resin material 2, a light source unit 3, and a voice recognition unit 7. The instrument body 1 includes a power supply unit 4 for supplying electric power to the light source unit 3. When the translucent cover 8 is removable from the fixture body 1, the fixture body 1 may include a protective cover 5 that covers the light source unit 3 from the front side.
In the present embodiment, the voice recognition unit 7 is incorporated in the power supply unit 4, and the lighting device X including the protective cover 5 will be described.
Hereinafter, each unit / member and the like will be described.

2. 2. Instrument body (1) Base resin material The base resin material 2 has at least a function of holding the light source unit 3 on the front side and a function of holding the hooking blade 49 on the back side. Here, since the lighting device X includes the power supply unit 4 and the protective cover 5, the base resin material 2 has a function of holding the power supply unit 4 and a function of holding the protective cover 5.
As shown in FIG. 2 or 3, the base resin material 2 extends at least from the covered tubular portion 21 protruding to the back side in a covered tubular shape and the opening edge of the covered tubular portion 21 in a radial direction. It has a flat portion 23. The base resin material 2 here has a groove-shaped portion 25 recessed on the back side on the outer periphery of the flat portion 23.
The base resin material 2 is made of a resin material, and is made of an integrally molded product obtained by integrally molding a covered tubular portion 21, a flat portion 23, and a groove-shaped portion 25.
As shown in FIG. 5, the covered tubular portion 21 holds the hooking blade 49 and constitutes the mounting member holding portion. The flat portion 23 holds (mounts) the light source unit 3 on the surface thereof to form the light source holding portion. The flat portion 23 holds (mounts) the power supply unit 4 on the back surface thereof, and constitutes the power supply holding portion. The flat portion 23 holds the protective cover 5 and constitutes the protective cover holding portion.
Hereinafter, each part will be described mainly with reference to FIG. 6 or FIG.

(1-1) Covered tubular portion The covered tubular portion 21 has a tubular portion 211, a lid portion 213, and an outer flange portion 215.
Here, the tubular portion 211 has a circular cross-sectional shape. The tubular portion 211 has a recess or a through hole 211a with which the protruding portion 52a (see the enlarged view of FIG. 5) of the inner tubular portion 52 of the protective cover 5 engages. The inner cylinder portion 52 of the protective cover 5 is fitted to the front side portion of the cylinder portion 211 (see FIG. 3). The tubular shaft of the covered tubular portion 21 substantially coincides with the central shaft of the lighting device X.
The lid portion 213 has a recessed region 213a that is recessed on the front side. Using the recessed area 213a, a hook blade 49 to be attached to the mounting groove of the hook ceiling and a lock mechanism 27 for locking the hook blade 49 to the mounting groove of the hook ceiling are provided (see FIG. 7).
The covered tubular portion 21 has a groove 213d in the lid portion 213 and a pair of vertical ribs 211d in the tubular portion 211, respectively, as shown in FIG. 7, in order to arrange the cable 48 connected to the hooking blade 49.
The covered tubular portion 21 has an outer flange portion 215 that projects outward in the radial direction from the opening side end (front side end) of the tubular portion 211. A part of the front surface of the outer flange portion 215 is connected to the front contact portion 241 (see FIG. 6) of the flat portion 23, and a part of the back surface thereof is the back contact portion 243 of the flat portion 23. Combine with (see FIG. 7).

(1-2) Flat portion The flat portion 23 has a circular shape as a whole, as shown in FIGS. 6 and 7.
The flat portion 23 has a plurality of recessed portions recessed on the back side. The recessed portion has a function of reinforcing the flat portion 23 (base resin material 2). The recessed portion here is concentric with the inner recessed portion 231 provided in a "C" shape on the inner virtual circle and the virtual circle of the inner recessed portion 231 outside the inner recessed portion 231. The outer recessed portion 232 provided in a "C" shape as a whole on the virtual circle of the above, and the connecting recessed portion provided so as to connect the inner recessed portion 231 and the outer recessed portion 232 in the radial direction. There is 233.
The non-recessed portion 234 of the flat portion 23 has

ridge portions

235 and 237 that face the light source unit 3 and project to the front side to support and position the back surface of the light source unit 3.
The flat portion 23 has a plurality of pin-shaped portions 238 on the surface for fixing the light source unit 3 (light source module 31) by inserting through holes and gaps of the light source module 31.
As shown in FIG. 7, the flat portion 23 has a screw portion 239 on the back surface for screwing the screws fixing the power supply unit 4. An insert screw or the like is integrally molded with the screw portion 239.
The flat portion 23 has a front contact portion 241 (see FIG. 6) that contacts the surface of the outer flange portion 215 of the covered tubular portion 21 and a back contact portion 243 (see FIG. 7) that contacts the back surface of the outer collar portion 215. (See) and on the inner circumference side. The front contact portion 241 and the back contact portion 243 are coupled to the outer flange portion 215 by integrally molding the flat portion 23 (and the groove-shaped portion 25).

(1-3) Groove-shaped portion As shown in FIGS. 6 and 7, the groove-shaped portion 25 is composed of an inner peripheral wall portion 251 and an outer peripheral wall portion 252 and a bottom portion 253, and the groove-shaped portion 25 is formed in FIG. As shown in the above, the outer tubular portion 53 of the protective cover 5, the protective cover side mounting portion 54, and the translucent cover side mounting portion 813 of the translucent cover 8 are accommodated.
Returning to FIGS. 6 and 7, the groove-shaped portion 25 has an L-shaped portion 254 that extends outward from the front end of the outer peripheral wall portion 252 in the radial direction and then bends to the back side. As shown in FIG. 5, the L-shaped portion 254 fits into the groove-shaped portion 812 of the translucent cover 8.
As shown in FIG. 6, the groove-shaped portion 25 has a plurality of screw hole portions 255 into which screws for fixing the protective cover 5 are screwed in the circumferential direction so as to straddle the inner peripheral wall portion 251 and the bottom portion 253. ..

(2) Light Source Unit This will be described mainly with reference to FIG. 2 or FIG.
The light source unit 3 has an annular shape and includes three arc-shaped

light source modules

31A, 31B, and 31C. When it is not necessary to distinguish the light source modules, the reference numerals will be described simply as "31".
As shown in the enlarged view of FIG. 2, the light source module 31 includes an LED element 33, which is an example of a light emitting element, and a wiring body 35 on which a plurality of LED elements 33 are mounted. Here, there are a plurality of types (for example, two types) of the plurality of LED elements 33, and each type is connected to an independent (individual) conductive path. That is, the light source module 31 independently has a first light emitting unit 311 that emits a first light emitting color and a second light emitting unit 313 that emits a second light emitting color different from the first light emitting color (see FIG. 11). This makes it possible to adjust the color.
The wiring body 35 is composed of a plurality of conductive pieces 37 that are separated from each other, and is mounted so that the LED element 33 straddles the adjacent conductive pieces 37. As the conductive piece 37, a plate material or the like having a conductive treatment on the surface of a metal plate or an insulating plate can be used.
The wiring body 35 is provided with reinforcing portions 39 on the front and back sides for reinforcing the plurality of conductive pieces 37 that are separated from each other.
The light source unit 3 is melted after the pin-shaped portion 238 (see FIG. 6) of the base resin material 2 inserts a through hole or a chip portion formed in the conductive piece 37 between the conductive pieces 37 constituting the wiring body 35. By doing so, it is fixed to the flat portion 23 of the base resin material 2.

(3) Power Supply Unit As shown in FIG. 9, the power supply unit 4 includes a power supply circuit 42 in a power supply case 41. As shown in FIG. 1, an elastic member (sponge or the like) 29 for preventing rattling is provided on the back surface of the power supply case 41, and the elastic member 29 is outside the base resin material 2 as shown in FIG. It is also provided in the connecting portion of the recessed portion 232 with the connecting recessed portion 233.

(3-1) Power supply circuit As shown in FIG. 11, the power supply circuit 42 has a wireless communication unit 421 that receives a wireless signal from the remote controller 78 and a lighting power for lighting the light source unit 3 from AC100V, which is a commercial power source. The lighting power generation unit 423 that generates the lighting power generation unit 423, the lighting control unit 425 that controls the lighting power generation unit 423 based on the radio signal received by the wireless communication unit 421 and the voice signal recognized by the voice recognition unit 7, and the storage unit 427. Has.
The wireless communication unit 421 uses, for example, infrared rays for communication with the remote controller 78, and is composed of a light receiving element 441 for infrared rays (see FIG. 8). The light receiving element 441 is mounted on the surface of the power supply board 44.
The lighting power generation unit 423 generates lighting power (DC power) instructed by the lighting control unit 425 from AC power, for example, by PWM control. The lighting power generation unit 423 independently has a first generation unit for the first light emitting unit 311 and a second generation unit for the second light emitting unit 313. As a result, dimming lighting and toning lighting become possible. The lighting power generation unit 423 is composed of a plurality of electronic components 43 such as a diode, a capacitor 431, a transformer 432, and a switching element 433. The electronic component 43 is mounted on the power supply board 44.
The lighting control unit 425 is composed of, for example, a CPU and a RAM for work, and outputs a duty ratio corresponding to the first generation unit and the second generation unit.
The storage unit 427 includes an EEPROM, a RAM, and the like. The storage unit 427 stores a computer program for lighting corresponding to a radio signal or an audio signal, various parameters used for executing the computer program, and the like. The duty ratio and the like are stored in the storage unit 427 in association with the radio signal and the voice signal.

(3-2) Power Supply Case The power supply case 41 is composed of a power supply base 46 and a power supply cover 47 that covers the power supply base 46.
(3-2-1) Power Supply Base The power supply base 46 is located on the base resin material 2 side, and has a bottom plate portion 460 and a base side plate portion 461 that stands from the peripheral edge portion of the bottom plate portion 460 to the back side.
As shown in FIG. 9, the power supply base 46 supports and positions a power supply board support portion 462 that supports the power supply board 44, a power supply board positioning portion 463 that positions the power supply board 44, and a voice board 74 that will be described later. The bottom plate portion 460 or the base side plate portion 461 has a substrate

support positioning portion

464, 465, an audio substrate fixing portion 466 for fixing the supported / positioned audio substrate 74, and a microphone support portion 467 for supporting the microphone 75.

(3-2-1-1) Bottom plate portion The bottom plate portion 460 has a recessed portion 460a for accommodating a nightlight 442 provided on the surface of the power supply board 44 and a light receiving element 441 for a wireless signal of the remote controller 78. Here, the conductive pin 443 is used for the electrical connection between the power supply circuit 42 and the light source module 31, and a through hole 460b for the conductive pin 443 is provided in the bottom plate portion 460.
(3-2-1-2) Base side plate portion The base side plate portion 461 is connected to the connector 444 of the power supply circuit 42 and electrically connected to the light source unit 3 (see FIG. 7) 48 chipped portion 461a. have.
(3-2-1-3) Power supply board support portion As shown in FIG. 9, the power supply board support portion 462 is composed of a plurality of projecting portions protruding from the bottom plate portion 460 to the back side. The protruding portion is composed of ribs provided on the bottom plate portion 460 and the base side plate portion 461.
(3-2-1-4) Power supply board positioning unit The power supply board positioning unit 463 is composed of a protruding portion extending from the bottom plate portion 460 to the back side and fitting into the through hole 44a of the power supply board 44.
(3-2-1-5) Audio board support positioning unit The audio board support positioning unit 464 further includes a plurality of first protruding portions 464a projecting from the bottom plate portion 460 to the back side, and further from the protruding tips of the first protruding portions 464a. It has a second protruding portion 464b that protrudes to the back side and fits into the through hole 74a of the sound substrate 74. The first protruding portion 464a is larger than the through hole 74a of the audio substrate 74. As a result, the audio board 74 can be supported and positioned from the front side.
The audio substrate support positioning portion 465 has a plurality of first projecting portions 465a projecting from the bottom plate portion 460 to the back side, and a second projecting portion 465b projecting further to the back side from the projecting tip of the first projecting portion 465a. The first protruding portion 465a abuts on the end of the voice board 74 from the front side, and the second protruding portion 465b abuts on the end face of the voice board 74. As a result, the audio board 74 can be supported and positioned from the front side.

(3-2-1-6) Audio board fixing portion The audio board fixing portion 466 is a plurality (for example, two) engaging piece portions that extend from the bottom plate portion 460 to the back side and engage with the back surface of the audio board 74. Consists of.
(3-2-1-7) Microphone support portion The microphone support portion 467 is provided so as to extend from the base side plate portion 461 to the back side. The microphone support portion corresponds to an example of the "support portion" of the present invention. As shown in the enlarged view of FIG. 8 and the enlarged view of FIG. 9, the microphone support portion 467 includes an outer stretched portion 467a, an inner stretched portion 467b on the back side of the outer stretched portion 467a, and an outer stretched portion 467a and an inner stretched portion 467b. The extension tip portion of the microphone 75 has a recessed portion 467c that matches the shape of the microphone 75.
The outer stretched portion 467a is narrower than the inner stretched portion 467b and fits into the opening of the microphone accommodating portion 474 of the power supply cover 47. Here, the opening of the microphone accommodating portion 474 is formed by the through hole 474a. The outer surface of the outer extending portion 467a is configured so as not to project outward from the outer surface of the microphone accommodating portion 474. Further, the recessed portion 467c is configured so that the microphone 75 does not project outward from the outer surface of the microphone accommodating portion 474.
The microphone support portion 467 is configured to form a space for the lead wire 753 of the microphone 75 (see the enlarged view of FIG. 10A) with the microphone accommodating portion 474.

(3-2-2) Power supply cover As shown in FIGS. 8 and 9, the power supply cover 47 has a top plate portion 470 facing the bottom plate portion 460 of the power supply base 46 and a peripheral portion of the top plate portion 470 to the front side. It has a cover side plate portion 471 to be stretched. Here, the top plate portion 470 is a portion parallel to the bottom plate portion 460, and the curved portion is a cover side plate portion 471 even if the portion faces the bottom plate portion 460.
As shown in FIG. 8, the power supply cover 47 includes a power supply board support portion 472 that supports the power supply board 44, an audio board support portion 473 that supports the audio board 74 described later, and a microphone accommodating portion 474 that accommodates the microphone 75. Has.

(3-2-2-1) Cover side plate portion The cover side plate portion 471 has a cover side plate main body portion 471a located on the top plate portion 470 side and a cover side plate end portion 471b located on the opening side of the power supply cover 47. .. The cover side plate end portion 471b projects outward from the cover side plate main body portion 471a and fits outside the base side plate portion 461 of the power supply base 46.
The power supply cover 47 mainly has a communication port 471c that enables communication between the inside and the outside of the power supply case 41 in the cover side plate main body portion 471a. A plurality of communication ports 471c are provided at intervals along the circumferential direction. As a result, the power supply circuit 42 and the voice recognition circuit 72 can be cooled.
The power supply cover 47 has an introduction port portion 471d for a cable 48 that electrically connects the power supply circuit 42 and the light source unit 3 to the cover side plate end portion 471b. The power supply cover 47 has a pressing piece 471e for holding the cable 48 at the introduction port portion 471d. As a result, even if a load such as disconnection of the cable 48 acts, it can be prevented from disconnecting from the power supply circuit 42.

(3-2-2-2) Power supply board support portion As shown in FIG. 8, the power supply board support portion 472 is composed of a plurality of stretched portions extending to the front side. The protruding portion is composed of ribs provided on the cover side plate main body portion 471a at intervals in the circumferential direction.
(3-2-2-3) Audio board support portion The audio substrate support portion 473 is composed of a protruding portion that extends from the top plate portion 470 to the front side and abuts or is close to the back surface of the audio substrate 74.
(3-2-2-4) Microphone accommodating portion The microphone accommodating portion 474 is provided at a corner portion of the power supply case 41 as shown in FIGS. 8 and 9. The microphone accommodating portion 474 is composed of a through hole 474a provided in the cover side plate main body portion 471a, and accommodates the microphone 75 in a state where the sound collecting surface 751 is exposed in the through hole 474a.
The through hole 474a substantially coincides with the overall peripheral shape of the outer extending portion 467a of the power supply base 46 and the microphone 75. In other words, the through hole 474a is configured so that the outer extending portion 467a and the microphone 75 fit together. As a result, the microphone 75 can be accommodated in a firmly supported state.
In the portion where the microphone accommodating portion 474 is formed, as shown in the enlarged view of FIG. 9, the upper side of the through hole 474a is flat (cover side plate flat portion 474b).
The microphone accommodating portion 474 is provided in a portion where a cover overhanging portion 475, which will be described later, is formed.

(3-2-3) Assembly In the coupling (assembly) of the power supply base 46 and the power supply cover 47, the engaging portion 471f of the cover side plate end portion 471b of the power supply cover 47 is engaged with the base side plate portion 461 of the power supply base 46. This is done by engaging the joint portion 461b. Here, the engaging portion 471f is formed by a convex portion, and the engaged portion 461b is formed by a through hole.
To fix the power supply case 41 to the base resin material 2, when the power supply base 46 and the power supply cover 47 are connected, the base overhanging portion 468 and the cover tension that project from the power supply case 41 in the direction orthogonal to the front and back directions and overlap each other. This is done by screwing a screw 419 (see FIGS. 2 and 3) through which the protrusion 475 is inserted into a screw portion 239 (see FIG. 7) of the base resin material 2.

(4) Voice recognition knit As shown in FIG. 9, the voice recognition unit 7 includes a voice recognition circuit 72 housed in the power supply case 41 and a voice input body 75 provided in the power supply case 41, and is input. The voice is recognized and output to the lighting control unit 425 of the power supply circuit 42.
(4-1) Speech Recognition Circuit As shown in FIG. 9, the speech recognition circuit 72 is configured by a plurality of electronic components 73, and the plurality of electronic components 73 are mounted on the audio board 74. As shown in FIG. 10, the voice recognition circuit 72 is arranged at intervals in the power supply circuit 42, and is arranged between the microphone 75 and the power supply circuit 42. As a result, it is possible to prevent noise sounds from the switching element 433, the transformer 432, the capacitor 431, and the like from being input to the microphone 75.
The audio board 74 is connected to the power supply board 44 via a cable (not shown). The cable is connected to the

connectors

733 and 445 provided on the audio board 74 and the power supply board 44.
As shown in FIG. 11, the voice recognition circuit 72 outputs a control signal generated based on the voice collected (collected) by the microphone 75 from the user's voice around the lighting device X to the power supply circuit 42. It has a voice recognition unit 721, a timer 723 for measuring time, and a storage unit 725 for storing a word table. Control words and wakeup words are registered in the word table, for example, in the form of text.

The control word is a word indicating a user's instruction to the lighting device X, and there are a plurality of control words. For example, the control word "Akaruku" indicates an instruction to increase the amount of light of the illuminating device X by a predetermined amount from the default or current one. The control word "kuraku" indicates an instruction to reduce the amount of light by a predetermined amount from the default or current one.
The control word "warm" indicates an instruction to raise the color temperature of the illuminator X by a predetermined amount from the default or current one. The control word "white" indicates an instruction to lower the color temperature by a predetermined amount from the default or current one.
The control word "turn on" (turn on) indicates an instruction to turn on the lighting device X. The control word "Kete" (turn off) indicates an instruction to turn off the lighting device X.

The wake-up word is a word for identifying the collected voice as a user's instruction, and there is one or more.
The wake-up word indicates that the voice (word) following the voice of the wake-up word is an instruction of the user. The wakeup word may be a word that appears infrequently in normal conversation (for example, "iris").
Specifically, if the voice collected by the microphone 75 is "Akaruku" collected following the voice of the wake-up word "Iris", the voice "Akaruku" is identified as a user's instruction.

Returning to FIG. 11, the microphone 75 collects the voice of the user around the lighting device X, converts the collected voice into a voice signal, and outputs the voice signal.
The voice recognition unit 721 is composed of a CPU, a working RAM, and the like. When a voice signal is input from the microphone 75, the voice recognition unit 721 performs the following operations.
That is, the voice recognition unit 721 converts the user's voice included in the input voice signal into text. For speech recognition, a known acoustic analysis method that cuts out phonemes from a speech signal and compares them with an acoustic model can be used.
Next, the voice recognition unit 721 collates the recognized voice text with the wake-up word registered in the word table. For example, the voice recognition unit 721 collates the recognized voice text and the wakeup word from the viewpoint of whether or not they are the same in appearance.
When the recognized voice text matches the wake-up word, that is, when the wake-up word can be extracted from the voice text, the voice recognition unit 721 subsequently identifies the voice signal input from the microphone 75 as a user's instruction. .. The voice included in the voice signal identified as the user's instruction is converted into text, and the text is collated with a plurality of control words shown in the word table in the same manner as in the case of a wakeup word.
When the recognized voice text matches any of a plurality of control words, that is, when the control word can be extracted from the voice text, the voice recognition unit 721 transmits the control signal indicating the control word to the lighting control unit 425 of the power supply circuit 42. Output. In response to this, the lighting control unit 425 instructs the lighting power generation unit 423 of the duty ratio corresponding to the control signal.
The timer 723 measures the time elapsed since the voice recognition unit 721 extracted the wakeup word (hereinafter, may be referred to as “elapsed time”) in response to a command from the CPU.
The storage unit 725 includes a ROM. In addition to the above-mentioned word table, the storage unit 725 stores a computer program for the voice recognition unit 721 to operate.

As shown in FIGS. 8 and 9, the voice recognition circuit 72 makes the end face of the voice board 74 abut on the second protruding portion 465b of the voice board support positioning portion 465 of the power base 46 so that the voice of the power base 46 comes into contact with the voice. The through hole 74a of the audio substrate 74 is fitted into the second protruding portion 464b of the substrate support positioning portion 464. Along with this, the end portion of the audio board 74 is locked by the audio board fixing portion 466 of the power supply base 46. As a result, it is fixed to the power supply base 46.

(4-2) Microphone The microphone 75 is provided at two places, for example, the power supply case 41. Microphones 75 are provided at both ends of the power supply case 41 in the longitudinal direction. As a result, the user's voice can be input (collected) in a wide range. Further, the noise sound can be canceled by performing arithmetic processing such as taking a difference between the voice signals collected by the two microphones 75.
The lead wire 753 of the microphone 75 is connected to the connector 731 of the audio board 74. The connector 731 is provided near the end on the opposite side of the power supply board 44. As a result, the wiring of the lead wire 753 can be facilitated.
As shown in FIG. 10, the microphone 75 is mounted on the power supply case 41 by being fitted to the microphone accommodating portion 474 of the power supply cover 47 in a state of being supported by the microphone support portion 467 (see FIG. 9) of the power supply base 46. Will be done.
Since the microphone 75 is arranged on the cover side plate portion 471 of the power supply cover 47, the microphone 75 is separated from the power supply circuit 42 and the voice recognition circuit 72. As a result, it is possible to prevent noise sound emitted from electronic components such as the transformer 432, the capacitor 431, and the switching element 433 (see FIG. 9) constituting the power supply circuit 42 from being transmitted to the microphone 75. In particular, when only one microphone 75 is provided, the noise sound as described above cannot be canceled, so it is effective to provide the microphone 75 at a position away from the power supply circuit 42.
Specifically, it is preferably supported by the microphone support portion 467A shown in FIG. In FIG. 9, the reference numerals of the microphones are "467A" and "467B" so that the position of the microphone support portion 467A can be clearly specified.
As shown in FIG. 10, the microphone 75 is mounted with the sound collecting surface 751 facing the outside of the power supply case 41. As a result, it is possible to reduce the influence of noise from the electronic component 43 in the power supply case 41.
The microphone 75 is fixed to the microphone support portion 467 of the power supply cover 47 with an elastic adhesive 77. The elastic adhesive 77 is an adhesive that has elasticity even at room temperature, such as a rubber-based adhesive or a polyolefin-based adhesive, and is supplied (coated) by hot melt or the like. As a result, the elastic adhesive 77 absorbs the vibration of the installation surface and the lighting device X, and the influence of the vibration of the power supply case 41 on the microphone 75 can be reduced.
In the state of being incorporated in the power supply case 41, the sound collecting surface 751 of the microphone 75 is located at the same position as the opening edge of the outer surface of the through hole 474a of the cover side plate main body portion 471a as shown in the enlarged view of FIG. ) Or located inside the opening edge. In other words, on the sound collecting surface 751, the downstream end in the gravity direction on which gravity acts passes through the upstream end in the gravity direction and is located on the virtual line parallel to the gravity direction or inside the power supply case 41 from the virtual line. As a result, it is possible to prevent dust from adhering to the sound collecting surface 751 of the microphone 75.
The microphone 75 is supported by the microphone support portion 467 so that the sound collecting surface 751 is vertical or face up. Here, the vertical direction is a direction parallel to the front and back directions, and the front side is a direction that moves to the inside of the power supply case 41 toward the front side. As a result, it is possible to prevent dust from adhering to the sound collecting surface of the microphone 75.

(5) Protective cover This will be described mainly with reference to FIG. 2 or FIG.
The protective cover 5 is made of a translucent resin. The protective cover 5 is attached to the base resin material 2 with screws or an engaging structure while covering the light source unit 3.
The protective cover 5 has an annular bulging portion 51 that is annular and bulges to the front side when viewed from the front side, an inner tubular portion 52 that extends from the inner peripheral edge of the annular bulging portion 51 to the back side, and an annular bulge. It has an outer tubular portion 53 extending from the outer peripheral edge of the protruding portion 51 to the back side.
The annular bulging portion 51 has a recessed portion 511 that recesses into the back side at intervals in the circumferential direction, and supports the light source unit 3 from the front side when the protective cover 5 is attached to the base resin material 2. ..
When the protective cover 5 is attached to the base resin material 2, the inner cylinder portion 52 fits inside the cylinder portion 211 of the base resin material 2, and as shown in FIG. 5, the protruding portion 52a of the inner cylinder portion 52 ( (See FIG. 3) engages with the through hole 211a of the tubular portion 211 of the base resin material 2.
The protective cover 5 has a mounting portion for mounting the translucent cover 8. Here, the mounting portion transmits the translucent cover 8 when the translucent cover 8 is rotated around the central axis (hereinafter, also simply referred to as “central axis”) of the instrument body 1 (illuminating device X). It is composed of a protective cover side mounting portion 54 with which the optical cover side mounting portion 813 is engaged.
A plurality (here, three) of the protective cover side mounting portions 54 are provided on the outer peripheral surface of the outer tubular portion 53 at equal intervals in the circumferential direction.
The protective cover 5 has a fixing portion 56 for fixing the protective cover 5 to the base resin material 2. A plurality of fixed portions 56 (here, three) are provided at equal intervals in the circumferential direction in a state of being adjacent (connecting) to the protective cover side mounting portion 54 on the outer peripheral surface of the outer tubular portion 53 in the circumferential direction. )is there. As shown in FIG. 2, a screw 59 is used for fixing, and is composed of an insertion hole through which a screw screwed into the screw hole portion 255 of the base resin material 2 is inserted.

3. 3. Translucent cover This will be described mainly with reference to FIGS. 2, 3 and 5.
The translucent cover 8 is made of a translucent resin material, and has a back cover 81 attached to the protective cover 5 and a front cover 83 detachably attached to the back cover 81. The back cover 81 and the front cover 83 are so-called milky white covers containing diffusion particles and the like.
The back cover 81 is provided on the annular back cover main body 811 that expands on the front side, the groove-shaped portion 812 provided inside the back cover main body 811, and the groove wall on the central axis side with respect to the groove-shaped portion 812. It has a translucent cover side mounting portion 813 and a back cover side mounting portion 814 provided at the front end portion of the back cover main body portion 811 and mounted on the front cover side mounting portion 835 of the front cover 83.
The translucent cover-side mounting portion 813 engages with the protective cover-side mounting portion 54, for example, by relative rotation of the back cover 81 around the central axis. It should be noted that there are a plurality (for example, 6) of the translucent cover side mounting portions 813 at intervals in the circumferential direction.
The front cover 83 has a dome portion 831 that is circular and has a dome shape as a whole when viewed from the front side, a tubular portion 833 provided on the opening side of the dome portion 831, and a front cover provided on the tubular portion 833. It has a side mounting portion 835.
There are a plurality (for example, eight) of front cover side mounting portions 835 at intervals in the circumferential direction. The front cover side mounting portion 835 and the back cover side mounting portion 814 of the back cover 81 have convex portions or concave portions (including through holes) that engage with each other (not shown).

4. Control contents of the voice recognition unit The voice recognition circuit 72 has a step of determining whether or not the voice signal input to the microphone 75 is a wakeup word, and when the voice signal is a wakeup word, it is input within a predetermined time. It has a step of determining whether or not the voice signal is a control word. That is, the voice recognition circuit 72 is configured to receive the control word for a predetermined time after recognizing the wakeup word. As a result, within a predetermined time, a plurality of control words can be accepted without inputting a wakeup word again, and convenience can be improved.
(1) Example 1
FIG. 12 is a flowchart of the voice recognition unit 721 according to the present embodiment.
In Example 1, the starting point of the predetermined time is the time of recognition (extraction) of the wakeup word.
The voice recognition unit 721 waits until a voice signal is input from the microphone 75 (N in step S101). When the voice signal is input (Y in step S101), the voice of the input voice signal is converted into a text, and an attempt is made to extract a wakeup word from the text of the voice (step S102). If it can be extracted (Y in step S103), the elapsed time is reset and the measurement of the elapsed time is started (step S104). If the wakeup word cannot be extracted (N in step S103), it waits until the voice signal is input again.
When a voice signal is continuously input from the microphone 75 after extracting the wake-up word (Y in step S105), the voice recognition unit 721 identifies the input voice signal as a user's instruction and of the voice signal. Attempts to extract the control word from the voice text (step S106). If it can be extracted (Y in step S107), a control signal is generated and the generated control signal is given to the power supply circuit 42 (step S108).
The voice recognition unit 721 performs the processes from step S105 to step S108 described above until the elapsed time reaches a predetermined time (for example, 5 seconds) (N in step S109).

(2) Example 2
In Example 1, the elapsed time is the time elapsed since the voice recognition unit 721 extracted the wakeup word. However, further, the time elapsed since the voice recognition unit 721 extracts the control word may be used as the elapsed time. That is, in Example 2, the starting point of the predetermined time is the time of recognition (extraction) of the control word. As a result, the user illuminates the lighting device X without producing the wake-up word voice until a predetermined time elapses (that is, until the elapsed time reaches a predetermined time) after giving an instruction to the lighting device X. Instructions can be given to device X.
The flowchart of the voice recognition unit 721 at this time is shown in FIG.
The voice recognition unit 721 performs the same processing as in steps S101 to S104 described above. That is, when the voice signal is input, the wakeup word is extracted based on the voice signal, the elapsed time is reset, and measurement is started (steps S201 to S204).
The voice recognition unit 721 subsequently performs the same processing as in steps S105 to S108 described above. That is, when a voice signal is input after extracting the wakeup word, the control word is extracted based on the voice signal, a control signal is generated, and the control signal is given to the power supply circuit 42 (steps S205 to S208).
When the voice recognition unit 721 gives the control signal to the power supply circuit 42 (step S208), the voice recognition unit 721 resets the elapsed time and starts measuring the elapsed time (step S209). Then, the processes of steps S205 to S209 described above are performed until the elapsed time reaches a predetermined time (N in step S210).
The elapsed time in step S209 may be measured before the control signal is given to the power supply circuit 42.
<Second Embodiment>
In the first embodiment, the voice recognition unit 7 does not include a voice output body, but may include a voice output body. The speaker, which is an example of the audio output body, can be implemented by arranging the speaker in the power supply unit 4, for example.
1. 1. Example 1
The speech recognition circuit may output a first alert sound (for example, a beep) to the speaker each time a wake-up word or a control word is extracted from the speech text. As a result, it is possible to notify the user that the voice recognition unit has been able to extract the wake-up word or the like, that is, that the lighting device X has been able to recognize the user's voice.
Specifically, for example, in FIG. 12, the first alert sound may be output to the speaker after the wake-up word in step S203 is extracted or the control word in S207 is extracted.

2. 2. Example 2
When the voice recognition circuit does not extract the control word by the time the elapsed time reaches a predetermined time, the voice recognition unit makes a second alert sound (for example, a beeping sound) different from the first alert sound. It may be output to a speaker. As a result, it is possible to notify the user that the voice recognition unit could not extract the control word, that is, the lighting device X could not recognize the voice of the user's instruction, and instructed the lighting device X again. Can be done by the user.
The flowchart of the voice recognition unit 721 at this time is shown in FIG.
Similar to steps S101 to S104 described above, the voice recognition unit 721 extracts a wakeup word based on the voice signal when the voice signal is input, resets the elapsed time, and starts measuring (the elapsed time is reset and measured). Steps S301 to S304).
When the voice recognition unit 721 resets the elapsed time and starts measuring the elapsed time (step S304), the control word recognition flag indicating that the control word has been extracted is set to off (that is, "0"). (Step S305).
Subsequently, the voice recognition unit 721 extracts a control word based on the voice signal when a voice signal is input after extracting the wake-up word, and generates a control signal, as in steps S105 to S108 described above. Is given to the power supply circuit 42 (steps S306 to S309).
When the voice recognition unit 721 gives the control signal to the power supply circuit 42 (step S309), the voice recognition unit 721 sets the control word recognition flag to on (that is, “1”) (step S310). If extraction is not possible (N in step S308), the control word recognition flag remains off.
The voice recognition unit 721 performs the processes of steps S306 to S310 described above until the elapsed time reaches a predetermined time (N in step S311). When the elapsed time reaches a predetermined time (Y in step S311) and the control word recognition flag is off (Y in step S312), a second alert sound is output to the speaker (step S313).

3. 3. Example 3
When the user's instruction is an instruction that the lighting device X cannot make, the voice recognition circuit makes a third alert sound different from the first alert sound and the second alert sound (for example, a beeping sound). ) May be output to the speaker.
For example, when an instruction is given to the lighting device X that is already lit, or when the upper limit (or lower limit) at which the amount of light or the color temperature can be adjusted is reached, the lighting device X is further raised (or lowered). By outputting a third alert sound from the speaker, such as when an instruction is given, the user can be notified that the instruction is incorrect, and such an incorrect instruction can be given to the user. You can prevent it from being done many times.

The flowchart of the voice recognition unit 721 at this time is shown in FIG.
Here, the lighting control unit 425 (see FIG. 11) is to that effect (that is, when the lighting power generation unit 423 cannot perform dimming lighting or toning lighting based on the output duty ratio. A failure signal indicating that dimming and lighting could not be performed is given to the voice recognition circuit 72 (voice recognition unit 721).
The voice recognition unit 721 performs the same processing as in steps S101 to S108 described above (steps S401 to S408).
When the voice recognition unit 721 receives a failure signal from the power supply circuit 42 (lighting control unit 425) after giving the control signal to the power supply circuit 42 (step S408) (Y in step S409), the voice recognition unit 721 makes a third alert sound. Is output to the speaker (step S410). Then, the processes of steps S405 to S410 described above are performed until the elapsed time reaches a predetermined time (N in step S411).

Here, the lighting control unit 425 sends a failure signal indicating that when the lighting power generation unit 423 cannot perform dimming lighting or toning lighting based on the output duty ratio, the voice recognition circuit 72. (Voice recognition unit 721), but when dimming or toning lighting cannot be performed, the third alert sound is output to the speaker by itself without giving a failure signal to the voice recognition circuit 72. May be good.

Although the embodiment has been described above, the embodiment is not limited to this embodiment, and for example, the following modification may be used. Further, the embodiment, the modified example, and the modified example may be combined.
Further, even if there is an example not described in the embodiment or the modified example, or a design change within a range not deviating from the gist, it is included in the present invention.

<Modification example>
1. 1. Lighting device The lighting device X (equipment main body 1) includes a hook blade 49 as an example of a mounting member, but may be provided with another mounting member. As another mounting member, there is a hanging member or the like, and in this case, it is a so-called hanging type lighting device that is mounted on the mounted surface via the hanging member.
Although the illuminating device X uses the hook blade 49 as the mounting member, a tap screw or the like may be used as the mounting member.
The lighting device X includes the power supply unit 4, but does not have to include the power supply unit. Examples of such a lighting device include a device in which the light source unit receives power from a power supply unit separate from the lighting device via a mounting member. In this case, the voice recognition unit may be housed in a voice recognition case and mounted on a base resin material or the like, or may be mounted on a power supply unit separate from the lighting device.
The lighting device X is provided with a protective cover 5 for safety when the device X is installed on the surface to be attached, but the lighting device X may not be provided with the protective cover depending on the structure. As such a lighting device, for example, there is a device in which the translucent cover is fixed so as not to come off from the main body of the fixture in the normal operation of the user.
Although the lighting device is configured to be operable by the remote controller, it may be configured so that it cannot be operated by the remote controller 78.

2. 2. Translucent cover The shape of the translucent cover is circular when viewed from the front side, but it may be another shape such as a square or a rectangle.
The translucent cover 8 is composed of two members, a back cover 81 and a front cover 83. For example, the translucent cover 8 may be composed of one member or three or more members.
Although the translucent cover 8 is detachably attached to the protective cover 5, it may be detachably attached to the base resin material, fixed to the base resin material, or other than the protective cover. It may be detachably attached to the base resin material via a member, or may be fixed to the base resin material via another member other than the protective cover.

3. 3. Instrument body (1) Base resin material The base resin material 2 was an integrally molded product made of a resin material, but it may be assembled after the covered tubular portion and the flat portion are formed as separate bodies. The structure may be such that the base member is attached to the adapter provided with the hook blade.
(1-1) Light Source Holding Unit The flat portion 23, which is an example of the light source holding portion, has recessed

portions

231, 232, and 233, but may have another structure as long as the flat portion can be reinforced. However, it may have another shape, or may not have a recessed portion if it is not necessary to reinforce it.
The flat portion 23, which is an example of the light source holding portion, has a portion parallel to the horizontal direction, but may have a portion inclined with respect to the horizontal direction, or is horizontal to the portion parallel to the horizontal direction. It may have both a portion that is inclined with respect to a direction.

(1-2) Mounting member holding portion The covered tubular portion 21, which is an example of the mounting member holding portion, has a hooking blade 49 attached to the recessed region 213a, but is hooked to another portion without providing the recessed region. A blade 49 may be attached.
The mounting member holding portion is composed of a covered tubular portion 21 as an example. For example, the mounting member holding portion is composed of a plate-shaped portion corresponding to the lid portion 213 of the covered tubular portion 21 and has a covered tubular portion. As a structure in which the tubular portion corresponding to the tubular portion 211 of 21 is included in the flat portion (23) which is an example of the light source holding portion (including the deformation described in the above “(1-1) light source holding portion”). May be good.

(1-3) Covered tubular portion The covered tubular portion 21 is provided with a locking mechanism 27 in the recessed region 213a, but a locking mechanism may be provided in another portion or locked if it is not necessary to lock. It does not have to have a mechanism.
(1-4) Flat portion The shape of the flat portion 23 is a circular shape when viewed from the front side, but may be another shape such as a square or a rectangle.
A part of the back surface of the flat portion 23 is a power supply holding portion for holding the power supply unit 4, but a part of the front surface of the flat portion may be a power supply holding portion for holding the power supply unit.
When the lighting device does not include a power supply unit (such as a separate structure of the power supply unit), the inner recessed portion 231 and the outer recessed portion 232 of the flat portion 23 may have an annular shape as a whole.
(1-5) Grooved portion The base resin material 2 has a grooved portion 25, but does not have to have a grooved portion. In this case, it can be carried out by engaging the protective cover side mounting portion 54 and the translucent cover side mounting portion 813 on the front side of the flat portion 23.

(2) Light Source Unit The shape of the light source unit 3 is circular when viewed from the front side, but may be another shape such as a square or a rectangle according to the shape of the lighting device. The light source unit 3 includes three

light source modules

31A, 31B, and 31C, but may be composed of one, two, or four or more light source modules.
The light source module 31 includes a wiring body 35 corresponding to a substrate by a plurality of separated conductive pieces 37, but instead of the wiring body, a substrate made of an insulating material and having a wiring pattern may be provided.
Although the light source unit 3 includes the LED element 33, another light emitting element may be provided.

(3) Power Supply Unit The power supply unit 4 accommodates a power supply board 44 on which a plurality of electronic components (43) constituting the power supply circuit 42 are mounted in the power supply case 41. For example, the power supply board is made of a base resin material. The power supply board may be covered with a power supply cover. In this case, the voice input body may be provided on the power supply cover, may be provided on another unit, for example, a light source unit, or the voice input body may be provided on a case dedicated to the voice recognition unit provided independently of the power supply case. It may be provided.
The power supply board 44 may be one or more. For example, a board on which the dimming circuit is mounted and a board on which the toning circuit is mounted may be provided separately from the power supply board. For the electrical connection between the power supply unit 4 and the light source unit 3, the conductive pin 443 that inserts the through hole 234a (see FIG. 6) of the base resin material 2 from the power supply board 44 is brought into contact with the wiring body (or substrate) of the light source unit 3. However, for example, the power supply board and the connectors provided on the wiring body (or board) may be connected by a cable.

(4) Voice recognition unit (4-1) The voice recognition unit 7 includes two voice input bodies 75, but may be one or three or more.
(4-2) The voice recognition unit 7 includes a voice board 74 separately from the power supply board 44 of the power supply circuit 42. For example, an electronic component for the voice recognition unit may be mounted on the power supply board. On the contrary, a part of the power supply circuit, for example, a lighting control unit may be mounted on the audio board.
(4-3) Although the voice input body 75 of the voice recognition unit 7 is provided in the power supply case 41, it may be provided in another member such as a base resin material or a light source unit.
(4-4) The voice recognition unit 721 collated the wake-up word and the control word with the recognized voice text from the viewpoint of whether or not they are the same in appearance.
However, it may be collated from the viewpoint of whether or not the recognized voice text and the wakeup word are partially common, and the idea of the recognized voice text and the concept such as the wakeup word are common. It may be collated from the viewpoint of whether or not.
(4-5) In addition to the words described in the present embodiment, the control word may include, for example, a word indicating how much the amount of light and the color temperature change. Then, the voice recognition unit 721 may generate a control signal by using the control word.
For example, when the voice recognition unit 721 can extract the control words "90%" and "Akaruku" from the voice text, the voice recognition unit 721 may give a control signal to the lighting control unit 425 to make the amount of light 90% of the maximum.

(4-6) After extracting the wake-up word, the voice recognition unit 721 attempts to extract the control word from the voice signal when the voice signal is input (Y in step S105 of FIG. 12). However, you may try to extract not only the control word but also the wakeup word.
At this time, if the wakeup word can be extracted instead of the control word, the elapsed time may be reset and the elapsed time measurement may be started (returning to step S104 to continue the process), and the control word is used. The same processing as in the case where extraction is not possible (N in step S107) may be performed, or a predetermined alert sound or the like may be output from the speaker in order to make the user give an instruction again.

(4-7) The voice recognition unit 721 converts the voice signal into text when recognizing the voice, but for example, the input voice signal may be added to discriminate the tone of the voice. In this case, when the determined voice tone and the voice tone of the user registered in the lighting device X (hereinafter, referred to as “registered user”) match, the voice (that is, the tone is discriminated). The text of the voice) may be collated with the wake-up word or the like.
For example, the voice recognition unit 721 discriminates the voice tone of the input voice signal by using a known frequency analysis method such as Fourier transform, and the discriminated voice tone and the discriminated voice tone are stored in advance in the storage unit 434. It can be carried out by collating the tone of the voice of the registered user, and when both match, the text of the voice and the wakeup word or the like are collated.

(4-8) In Example 1 of the second embodiment, the voice recognition unit 721 causes the speaker to output the first alert sound each time a wake-up word or the like is extracted. However, instead of the first alert sound, the sound of the text from which the wake-up word or the like is extracted may be output to the speaker. That is, the user's voice may be returned as a parrot.
For example, each time the voice recognition unit 721 extracts a wakeup word or the like from the voice text of the input voice signal, the voice recognition unit 721 converts the voice text into voice by using a known technique (for example, waveform connection synthesis). It can be carried out by outputting to a speaker.
Further, the extracted wakeup word or the like may be converted (stored) into voice in advance and output.

(4-9) In Example 3 of the second embodiment, the voice recognition unit 721 outputs a third alert sound when an instruction that the lighting device X cannot perform is given. Instead of the alert sound of, the voice of the instruction may be output to the speaker, or the voice of the instruction plus a negative voice such as "cannot be" may be output to the speaker.
(4-10) The control related to the voice recognition unit can be applied to lighting devices other than ceiling lights, such as downlights, pendant lights, and base lights.
Needless to say, the control word and the wakeup word may be words used in the area where the device is used.

(5) Protective Cover The protective cover 5 has an inner tubular portion 52 and an outer tubular portion 53 extending in the central axis direction, and the inner tubular portion 52 is attached to the covered tubular portion 21 of the base resin material 2 and the outer tubular portion. 53 is fixed to the base resin material 2 in a state of being fitted to the groove-shaped portion 25 of the base resin material 2, respectively.
However, for example, the protective cover has an inner flange portion that projects inward in the radial direction from the inner peripheral edge of the annular bulging portion 51 and an outer peripheral edge in the radial direction of the annular bulging portion 51. It may be fixed to the base resin material in a state of having an outer flange portion overhanging, the inner flange portion abutting on the inner peripheral portion of the flat portion, and the outer flange portion abutting on the outer peripheral portion of the flat portion. Further, as long as the annular bulging portion 51 has a structure that can be directly fixed to the base resin material 2, the protective cover may have a structure that does not have the inner tubular portion 52 and / or the outer tubular portion 53.
The annular bulging portion 51 has a recessed portion 511 that supports from the front side the portions adjacent (opposing) to each other in the circumferential direction of the three

light source modules

31A, 31B, and 31C, but the light source unit is provided with another structure. As long as it can be pressed against the flat portion, it does not have to have the recessed portion.
The fixing portion 56 of the protective cover 5 for fixing the protective cover 5 to the base resin material 2 with screws is provided in a state of being adjacent (connected) to the protective cover side mounting portion 54 in the circumferential direction, but is provided on the protective cover side. It may be provided so as to be separated from the mounting portion 54 in the circumferential direction. In this case, the screw hole portion 255 of the base resin material 2 also needs to be provided at a portion corresponding to the fixing portion 56.

X Lighting device 1 Instrument body 2 Base resin material 3 Light source unit 4 Power supply unit 5 Protective cover 7 Voice recognition unit 8 Translucent cover 41 Power supply case 72 Voice recognition circuit 75 Microphone (voice input body)
423 Lighting power generation unit 425 Lighting control unit 751 Sound collecting surface

Claims

In a lighting device including a lighting control unit that controls the lighting power supplied to the light source unit by the lighting power generation unit according to the voice of the user.
The voice input body into which the voice is input is provided in the case with the sound collecting surface exposed from the opening of the case.
A lighting device in which the sound collecting surface is located at the same position as the opening edge of the outer surface of the case or inside the opening edge.
In a lighting device including a lighting control unit that controls the lighting power supplied to the light source unit by the lighting power generation unit according to the voice of the user.
The voice input body into which the voice is input is provided in the case with the sound collecting surface exposed from the opening of the case, and the downstream end of the sound collecting surface in the direction of gravity on which gravity acts is the direction of gravity. A lighting device located on a virtual line parallel to the direction of gravity or inside the case from the virtual line passing through the upstream end of the.
The lighting device according to claim 1 or 2, wherein the voice input body is fixed to a support portion that supports the voice input body with an elastic adhesive.
The case is a power supply case that houses a power supply circuit having the lighting power generation unit and the lighting control unit, and covers the power supply base having the support portion and the power supply base and is supported by the support portion. With a power supply cover with a through hole for accommodating the audio input body,
The lighting device according to claim 3, wherein the through hole is an opening of the power supply case and fits the voice input body and a part of the support portion.
The voice recognition circuit that recognizes the voice is housed in the power supply case.
The lighting device according to claim 4, wherein the voice recognition circuit is arranged between the voice input body and the power supply circuit.
The lighting device according to claim 5, wherein the voice recognition circuit receives a control word for a predetermined time after recognizing a wakeup word.
The lighting device according to claim 5 or 6, wherein the voice recognition circuit outputs an alert sound to a voice output body when the wake-up word or the control word is recognized.
The lighting device according to any one of claims 5 to 7, wherein the voice recognition circuit outputs an alert sound to a voice output body when the control word cannot be recognized after recognizing the wakeup word.
A claim that the lighting control unit or the voice recognition circuit outputs an alert sound to a voice output body when the control word received after recognizing the wakeup word is an instruction that cannot be controlled by the lighting control unit. The lighting device according to any one of 5 to 8.