JPH07262461A - Sound guiding device - Google Patents

Abstract

PURPOSE:To provide a sound guiding device capable of allowing a guided person to easily sense a guide direction based upon guide sounds on the corner part of an L-shaped passage, the bent part of a T-shaped passage, the intersecting part of crossed passages, or a boundary part between the inlet/outlet of a living room and a passage. CONSTITUTION:Plural speakers SP1 to SP4 are arranged on an L-shaped passage 6 so that main axes are horizontally aligned. Guide sounds consisting of chimes and female announcement are generated from respective speakers SP1 to SP4. Since guide sounds with delays are generated from respective speakers SP1 to SP4 a person (guided person) residing in a building can be guided to a prescribed escape passage by a so-called leading sound effect. Since no speaker is arranged on the corner part 7 of the L-shaped passage 6, a guided person can be guided to a correct direction to be advanced even if the person stops on the corner part 7 or its vicinity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a sound emitted from a plurality of loudspeakers arranged in a passage of a building when a disaster such as a fire or an earthquake occurs in a building having an unspecified number of people such as a building or an underground mall. The present invention relates to a sound guiding device for guiding a person in a building to an evacuation site through a safe route.

[0002]

2. Description of the Related Art Conventionally, in the event of a disaster such as a fire or an earthquake in a building with a large number of unspecified people such as buildings and underground malls,
Various sound guidance devices have been proposed as a sound guidance device for guiding a person in a building to an evacuation site through a safe route by sounds emitted from a plurality of speakers arranged in a passage of the building (( ) Japan Lighting Equipment Manufacturers Association: JIL5505 Active Evacuation Guidance System Technical Standard (Draft) 1993, Japan Lighting Equipment Manufacturers Association Guidance Light Certification Committee: Basic Research Report on Voice Guidance 1992.3, Direction Judgment for Voice Evacuation Guidance Basic Experiments on Acoustics of Japan 1992 Spring Research Conference Proceedings pp463-4641992.3, Speech-based evacuation guidance using the Haas effect Evacuation Guidance by Voice-L-shaped passage-Proceedings of the Acoustical Society of Japan 1993 Spring Research Presentation pp673-6741993.3
reference).

These sound guidance devices include a plurality of speakers which are arranged in a passageway of a building and emit a guidance sound, and a ringing means which sequentially rings the plurality of speakers so that the guidance sounds emitted from the speakers have a time difference. It is equipped with a speaker placed closest to a predetermined evacuation site as a reference, and delays the guide sound from each speaker in the order in which the evacuation route is traced back in order to give a time difference to the guide sound. The sound effect guides the person (guided person) inside the building to the evacuation site through a safe route.

[0004]

In the above-mentioned conventional configuration, the standard interval between the speakers is about 1.
It is desirable to set it to about 0 m, and as shown in FIGS.
As shown in FIG. 3, in the L-shaped passage 6, its corner portion 7 (see FIG.
And the speaker SP ₂ near the wall surface of the passage that intersects with the guided person's traveling direction in the portion surrounded by the dotted line in FIG.
Or the speaker SP ₂ 'at a position slightly deviated from the point where the traveling direction of the guided person and the wall surface of the passage intersect.
Are arranged.

However, when the guided person stops at the corner 7 of the L-shaped passage 6 or in the vicinity thereof, the speaker SP ₂ arranged near the wall surface of the passage intersecting the traveling direction or the wall surface of the traveling direction and the passage. Only the guidance sound of the speaker SP ₂ 'located at a position slightly deviated from the point of intersection with is guided by the guided person, and especially when the guided person is a visually impaired person or when the visibility is poor due to smoke during a fire. However, it is difficult for the guided person to grasp the shape of the passage, and thus the guided person cannot be guided in the original safe guiding route.

Further, in the above conventional structure, as shown in FIGS. 14 and 15, the bent portion 9 of the T-shaped passage 8 (see FIG. 14).
(The part surrounded by the dotted line in the figure), the intersection 1 of the cross passage 10
Speakers SP ₂ and SP adjacent to each other between passages in different directions sandwiching 1 (a portion surrounded by a dotted line in FIG. 15).
The arrangement interval of ₃ (or SP ₅ , SP ₇ ) is set to be substantially equal to the arrangement interval (about 10 m) of the speakers SP ₁ , SP _{2 in} the linear one-way passage, and the corner portion of the L-shaped passage 6 is set. 7. At the bent portion 9 of the T-shaped passage 8, the intersection portion 11 of the cross passage 10 or the boundary portion between the entrance and exit of the living room and the passage, it is easy to perceive the guiding sound when the guided person is guided to turn right or left. However, there is a problem in that the guide sound is lower than the perceptibility of the guide sound when the user is guided straight ahead.

The present invention is intended to solve the above-mentioned problems, and is provided at the corner of an L-shaped passage, the bent portion of a T-shaped passage, the intersection of a cross passage, or the boundary between the entrance and exit of a living room. An object of the present invention is to provide a sound guiding device that allows the guided person to easily perceive the guiding direction of the guiding sound.

[0008]

In order to achieve the above-mentioned object, a plurality of loudspeakers arranged in a passage of a building to emit a guidance sound and a guidance sound emitted from each speaker have a time difference. A sound guiding device comprising a sounding means for sequentially sounding a plurality of speakers so that the sound guiding device guides a person in a building to a predetermined place by the guide sound.
A plurality of speakers are arranged at substantially equal intervals in the passage in one direction, and no speaker is arranged at the corner of the L-shaped passage.

In order to achieve the above-mentioned object, a plurality of loudspeakers arranged in a passage of a building to emit a guide sound and a plurality of speakers so that the guide sounds emitted from the speakers have a time difference. Is a sound guiding device that guides a person in a building to a predetermined place by the guiding sound, and a plurality of speakers are arranged at substantially equal intervals in a one-way passage. , A corner of an L-shaped passage, a bent portion of a T-shaped passage, an intersection of a cross passage, or a passage in a different direction across a boundary between a doorway of a living room and the passage, the distance between adjacent speakers is set to 1 above. It is characterized in that it is shorter than the arrangement interval of the speakers in the passage in the direction.

According to a third aspect of the present invention, in the second aspect of the invention, the corner portion of the L-shaped passage, the bent portion of the T-shaped passage, the intersection of the cross passage, or the entrance and exit of the living room and the passage in one direction of the passage. The arrangement interval of the two speakers arranged across the boundary part of the is substantially equal to the arrangement interval of the plurality of speakers arranged in the passage in one direction without sandwiching the corner, the bent part, the intersection part, or the boundary part. It is characterized by having done.

[0011]

According to the structure of the invention of claim 1, a plurality of speakers arranged in the passage of the building to emit the guide sound, and a ringing means for sequentially ringing the plurality of speakers so that the guide sounds emitted from the speakers have a time difference. And a guide device for guiding a person in a building to a predetermined place by the guide sound, wherein a plurality of speakers are arranged at substantially equal intervals in a passage in one direction, and a corner of an L-shaped passage is provided. Since no speaker is placed in the section, even if the guided person in the building stops at or near the corner of the L-shaped passage, it is erroneously guided in the direction of the speaker placed at the corner as in the past. The guided sound source direction can be easily perceived by the guided person without being disturbed, and the guided person can be guided along the correct guiding route.

According to the second aspect of the present invention, a plurality of speakers arranged in the passage of the building and emitting the guide sound, and a ringing means for sequentially ringing the plurality of speakers so that the guide sounds emitted from the speakers have a time difference. And a guide device for guiding a person in a building to a predetermined place by the guide sound, wherein a plurality of speakers are arranged at substantially equal intervals in a passage in one direction, and a corner of an L-shaped passage is provided. Sections, bent portions of T-shaped passages, intersections of crossed passages, or passages in different directions across the boundary between the entrance and exit of the living room and the passages in different directions. Since it is shorter than the arrangement interval, it is possible to guide the guided person to bend the corner of the L-shaped passage, the bent portion of the T-shaped passage, the intersection of the cross passage, or the boundary between the entrance and exit of the living room and the passage. If you do, A source direction is readily perceived guided occupant, those that can be induced along the correct guidance route the guided occupant.

In the structure of the third aspect of the invention, the corner portion of the L-shaped passage, the bent portion of the T-shaped passage, the intersection portion of the cross passage, or the boundary portion between the entrance of the living room and the passage is sandwiched in the passage in one direction. The distance between the two loudspeakers arranged in 1 is set to be approximately equal to the distance between the plural loudspeakers arranged in the passage in one direction without sandwiching a corner portion, a bent portion, an intersection portion, or a boundary portion. When guiding a passage in the same direction by passing through a corner of a passage, a bent portion of a T passage, an intersection of a cross passage, or a boundary between the entrance and exit of a living room and the passage, the sound source direction of the guide sound is controlled. The guide person can easily perceive and the guided person can be guided along the correct guiding route.

[0014]

【Example】

(Embodiment 1) This embodiment will be described below with reference to FIGS. As shown in the block diagram of FIG. 2, the sound guiding apparatus of the present embodiment is composed of a plurality of closed type full-range speakers (hereinafter abbreviated as speakers SP ₁ ...) Arranged in the passage of a building and a personal computer. Control unit 1
, An adjustment switch unit 2 composed of a rotary switch or a DIP switch, a voice synthesizing unit 3 for synthesizing an alarm sound and a guidance message, and a voice signal from the voice synthesizing unit 3 is delayed to give a voice between the speakers SP ₁ ... A delay unit 4 including a digital delay device that delays the output timing, and an amplifier unit 5 that amplifies an audio signal sent via the delay unit 4 and sounds each speaker SP ₁ ... The control unit 1, the adjusting switch unit 2, the voice synthesizing unit 3, the delay unit 4, and the amplifier unit 5 constitute a ringing means.

In the above structure, when power is supplied to each part constituting the ringing means, the control part 1 first causes each speaker SP to operate.
Data for adjusting the delay time of voice generation between ₁ ... Is fetched from the adjustment switch unit 2 and a value corresponding to it is set in the delay unit 4. When a guidance activation signal is input to the control unit 1 from a disaster prevention device such as a fire receiver installed in the building, the voice synthesis unit 3 is driven by the control unit 1, and an alarm sound and a guidance message (for example, A voice signal of an inducing sound composed of a message "The emergency exit is here" by the chime and the female voice is output to the delay unit 4.
In the delay unit 4, the speaker SP _{1 is} added to the voice signal of the guiding sound.
After applying the delay for each speaker SP ₁ , the audio signal corresponding to each speaker SP ₁ is amplified by the amplifier unit 5, each speaker SP ₁ is sounded by the amplified audio signal, and the guidance sound is generated for each speaker SP ₁ . Depart from the passage in sequence. Therefore, due to the so-called preceding sound effect, a plurality of speakers SP ₁
It is possible to guide a person (guided person) who is inside the building to a safe evacuation site to evacuate in the event of a disaster on the evacuation route where ... is arranged. It should be noted that among the plurality of speakers SP _1, ..., The guide sound from each speaker is delayed in the order of tracing the evacuation route with reference to the speaker closest to the predetermined evacuation site.

By the way, generally, a large number of passages are provided in a building, but they are generally a straight passage in one direction, an L-shaped passage 6 in which the straight passage is curved, and a straight passage in one direction. A T-shaped passage 8 in which straight passages in different directions merge and a cross passage 10 in which two straight passages in different directions intersect.
Can be roughly divided into Further, the L-shaped passage 6, the T-shaped passage 8 and the cross passage 10 include the case where one of the passages is the entrance to the passage from the living room. Further, in this embodiment, each speaker SP is provided so that the guided person can be guided to the evacuation in the L-shaped passage 6 more safely and surely.
₁ is arranged. As shown in FIG. 1, a speaker SP is provided at a corner 7 (a portion surrounded by a dotted line in the figure) of an L-shaped passage 6 from a point A to a point B. ₁ ...
And the speaker S in the straight part of the L-shaped passage 6 without
P ₁ , SP ₂ and speakers SP ₃ , SP ₄ are arranged at a predetermined interval (about 10 m in this embodiment). The sound generation direction of the speakers SP _{1 to} SP ₄ is opposite to the guidance direction (direction from the point A to the point B) and is substantially matched with the axial direction of the straight line portion of the L-shaped passage 6.

The inventor of the present invention has the above-mentioned configuration of this embodiment and FIG.
Since a comparative experiment with the conventional configuration shown in FIG. 1 was conducted and the improvement of the induction effect according to the present invention was confirmed, the experimental results will be described below. Experiment location and device: FIG. 3 is a schematic view of the L-shaped passage 6 on which the experiment was conducted, the width of the straight passage is about 1.2 to 2.2 m, and the height of the ceiling is about 2.4 m. . The guidance sound consists of a message "This is the emergency exit." With a chime and a female voice. The reproduction frequency band of the guide sound is 500 Hz to 6 kHz, and the eight speakers SP _{0 to} S
The P ₇ was placed in the main shaft substantially horizontal to a height of approximately 2.1m from the floor surface. Because the reaction at the test site was relatively large,
Time difference to emit guidance sound between the speakers SP ₀ to SP ₇ (delay time) was set to the propagation time + 45 ms sound between the speaker SP ₀ to SP _7. In addition, each speaker SP _{0 to} SP
_The maximum output sound pressure of No. ₇ was about 87 dBA (however, dBA shows the effective value of sound pressure corrected for the A characteristic. The same applies hereinafter), and the background noise during the experiment was about 60 dBA.

Experiment content: From point A to point B of the passage
8 speakers SP in L-shaped passage 6₀~ SP₇Place
is there. Here, the axis of each straight portion of the L-shaped passage 6 in different directions
The point where the points intersect is origin O, and the direction from origin O to point A
The positive direction of the y-axis, the direction from the origin O to the point B
If the coordinates are defined as the positive direction of the x-axis, each speaker S
P₀~ SP₇Are located on the x-axis or the y-axis. You
Nozawa, speaker SP ₀Is the point at y = 10 [m], the spin
Maker SP₁Is the point of y = 4 [m], speaker SP₂Is y
= -0.3 [m] point, speaker SP₃Is x = 4
Point [m], speaker SP_FourIs the point of x = 7 [m],
Speaker SP_FiveIs the speaker SP at the point of x = 10 [m]
₆Is at the point of x = 14 [m], speaker SP₇Is x = 17
Each speaker SP at the point [m]₁The front of ... is located
It is arranged in each. The number of subjects is 53 (20
~ 38 males and 15 females in their 50s, with corner 7
About 50m away from corner 7 from point A about 16m away
It was decided to guide to point B. Y = 9 for each subject
Every 1 m from the point [m] to the point y = 3 [m],
Every 0.5 m from the point of y = 3 [m] to the point of origin O
1 m from the origin O to the point of x = 9 [m]
Every time you stop and listen to the guidance sound,
And the direction in which the sound source is felt (point A, point B, corner 7
Maker SP₂, I don't know) and intelligibility in that direction
A 7-step evaluation (7: Well understood ~ 1: I do not understand at all)
I made you answer. The average number of subjects at each listening point is
There were 6.4 people. In addition, the types of the presented voice are as follows.
Was set. (1) Speaker SP of corner 7₂Condition 1. Speaker SP_Five-Speaker SP₂-Speaker S
P₀Sound in order of Condition 2: Speaker SP₆-Speaker SP₃-Speaker S
P₂-Speaker SP₀(2) Speaker SP of corner 7₂Not to ring Condition 3: Speaker SP₇-Speaker SP_Four-Speaker S
P₁Sounds in order of Condition 4: Speaker SP₆-Speaker SP₃-Speaker S
P₁The results of the above experiment are shown in FIG. The horizontal axis is each listening point
[M] from the origin O of the
When the voice of each condition 1 to 4 is presented,
It is the average value of "easiness to handle". Where the guiding direction is wrong
Speaker SP at point A or corner 7₂If you answer
"Easy to understand" is 0 point, and if you do not know the direction of guidance,
If you answer, "intelligibility" is calculated as 1 point
It

As shown in FIG. 4, the speaker SP of the corner portion 7
_When ringing ₂ (conditions 1 and 2),
Around 1 to 3 m (y = 1 to y = 3) before the corner 7, although the evaluation point is good as compared with the case where the speaker SP ₂ of the corner 7 is not activated (conditions 3 and 4), As can be seen from the graph of condition 1, the corner 7 and the corner 7
More Evacuation Point B side (this is called Kakugo) 1-3
The evaluation point is low around m (x = 1 to x = 3), and especially in the vicinity of the corner 7 to less than 1 m (x = 0 to x = 1), the corner 7
Speaker SP ₂ to perceive the sound source of the guiding sound in the direction of
The evaluation points are significantly worse.

In this experiment, since the subject is a visually-impaired person who has grasped the shape of the passage in advance, the prejudice that "it cannot be guided in the direction of the speaker SP ₂ of the corner 7" works and the condition is satisfied. Speakers SP _{3 to} SP after the corner like 2
₇ near corner 7 (4 to 7 m from corner 7, x = 4 to x =
Even in the case of arranging in 7), there were few answers that mislead the guiding direction at the corner 7 to the speaker SP ₂ direction of the corner 7. However, under conditions where it is difficult to grasp the shape of the passage, such as when guiding a visually impaired person or when guiding in a situation where visibility is poor due to the full of smoke from a fire, the corner 7
It is fully conceivable that the speaker will be guided only to the speaker SP ₂ direction.

On the other hand, when the speaker SP ₂ of the corner portion 7 is not activated (conditions 3 and 4), 1 to 3 m after the corner (x
= 1 to x = 3), the overall evaluation score is better than that of Conditions 1 and 2. Therefore, even if the passage shape is difficult to be grasped, such as when guiding a visually impaired person or when guiding in a situation where visibility is poor due to the full of smoke from a fire, the guided person can turn to the corner (corner 7). In order to reach the evacuation exit (point B) when the vehicle arrives and stops, the corner portion 7 as in Conditions 3 and 4 can be reliably moved in the direction that should be followed.
It can be said that it is preferable not to install the speaker SP ₂ in the.

Further, 0 to 4 m (y = 1 to 1) in front of the corner portion 7
From the comparison between the graph of condition 3 and the graph of condition 4 at the listening point of y = 4), the two speakers S sandwiching the corner 7 are shown.
The distance between P ₁ and SP ₃ is the arrangement interval (1
It is concluded that it is desirable to make it smaller than 0 m (8 m in this experiment). From the above, the speaker SP before and after the corner 7 from the origin O of the corner 7 in FIG.
₂ , the distance to the front of SP ₃ is a and b respectively, 4
[M] ≦ a ≦ 6 [m], 3 [m] ≦ b ≦ 5 [m], 7
If the speakers SP ₁ ... Are arranged so as to satisfy the relationship of [m] ≦ a + b ≦ 9 [m], the bending angle of the L-shaped passage 6 (in comparison with the conventional configuration in which the speaker SP ₂ is arranged at the corner 7) The guiding effect in the corner 7) can be improved.

In this embodiment, from point A to point B
Only the one-way guidance to the point has been described, but in the case of a bidirectional sound guidance device capable of guiding from the B point to the A point, as shown in FIG. 5, another speaker SP ₁ ... _'the ..., by facing away to match the respective spindle, and front and rear speakers SP ₂ corners 7 from the origin O of the corner portion 7, SP ₃ and the speaker SP _2' speaker SP 1, after the SP ₃ ' Let the distances to the edges be a ′ and b ′, respectively, and 4 [m] ≦
a ′ ≦ 5 [m], 4 [m] ≦ b ′ ≦ 5 [m], 8 [m]
If the speakers SP ₁ are arranged so as to satisfy the relationship of ≦ a ′ + b ′ ≦ 9 [m], the guiding effect at the corner (corner 7) of the L-shaped passage 6 can be obtained even when bidirectional guiding is performed. Can be improved.

(Embodiment 2) The configuration of the sound guiding apparatus in this embodiment is the same as that of the first embodiment, the common parts are denoted by the same reference numerals, and the description thereof will be omitted. Only explained. In this embodiment, in the arrangement of the speakers SP ₁ ... In the T-shaped passage 8, as shown in FIG.
A straight passage in one direction is adjacent to another straight passage in two different directions with a bent portion 9 (a portion surrounded by a dotted line in FIG. 6) of the T-shaped passage 8 joined to the straight passage in a different direction. the arrangement interval of the speaker _{SP 2, SP 3, SP 5} , the arrangement interval in the straight path (in the case of the embodiment approximately 10m) is characterized in that it has less than.

The inventor of the present invention has the above-mentioned configuration of this embodiment and FIG.
When conducting a comparative experiment with the conventional configuration shown in FIG. 2 and bending the bent portion 9 to guide the guided person, the bent portion 9 is sandwiched 2
It has been confirmed that the above-described configuration of the present embodiment improves the induction effect with respect to the conventional configuration in which the two speakers SP ₂ , SP ₃ , and SP ₅ are arranged at the same spacing as the linear passage speakers SP ₁ ... The experimental results will be described.

Experiment location and device: FIG. 7 is a schematic view of the T-shaped passage 8 on which the experiment was conducted, in which the width of the straight passage is about 1.8 m and the height of the ceiling is about 2.4 m. Further, the experiment was conducted in a building different from the guidance experiment in the L-shaped passage 6 described in the first embodiment. Then, the six speakers SP _{0 to} SP ₅
Was installed at a height of about 2.15 m from the floor with the main axis tilted downward at 45 degrees with respect to the horizontal plane. Since the echo at the experimental place was relatively large, the time difference (delay time) between the speakers SP _{0 to} SP _{5 at which} the guide sound is emitted is the speaker SP ₀ to SP ₅ .
The sound propagation time between SP ₅ was set to +40 ms. The maximum output sound pressure of each speaker SP _{0 to} SP ₅ was about 91 dBA, and the background noise during the experiment was about 32 dBA.

Experiment content: A point to B point and C of the passage
Six speakers SP _{0 to} SP ₅ in the T-shaped passage 8 leading to the point
Has been placed. Here, the point where the axes of the straight passages in different directions of the T-shaped passage 8 intersect is defined as the origin O, the direction from the origin O to the point A is the positive direction of the y-axis, and the direction from the origin O to the point B is x. When the coordinates are defined with the positive direction of the axis and the direction from the origin O to the point C as the negative direction of x, the speakers SP _{0 to} SP ₅ are arranged on the x axis or the y axis. That is, the speaker SP ₀ is at the point of y = 6 [m],
The speaker SP ₁ is at the point of y = 4 [m], the speaker SP ₂
Is at the point of x = 4 [m], and the speaker SP ₃ is at x = 6 [m]
, The speaker SP ₄ is arranged at a point of x = −4 [m], and the speaker SP ₅ is arranged at a point of x = −6 [m]. 22 subjects (19 men in their 20s to 50s,
It is assumed that there are 3 females), and that the vehicle is guided from a point A about 35 m away from the bent part 9 to a point B about 20 m away from the bent part 9 or a point C about 25 m away from the bent part 9. For each subject, from the point of y = 2 [m] to the origin O, from the origin O to the point of x = 3 [m], and from the origin O to x = −.
7-point evaluation of the direction (A point, B point, C point, unknown) at which the user perceives the sound source for each presentation voice, which will be described later, by stopping at intervals of 1 m up to the point of 3 [m] ( 7: Well understood ~ 1: I do not understand at all). The average number of subjects at each listening point was 14.8. Further, the types of the presented voices are set as follows. (1) When the speaker SP ₁ in front of the bent portion 9 is caused to ring Condition 1: Speaker SP ₅ -Speaker SP ₁ is caused to ring in the C direction Condition 2: Speaker SP ₄ -Speaker SP ₁ is ringed in order Guidance in the C direction Condition 3: Guidance in the B direction that causes the speaker SP _{3 to the} speaker SP ₁ to ring in order Condition 4: Guidance in the B direction to cause the speaker SP ₂ and the speaker SP ₁ to ring in this order (2) Bent portion 9 When the speaker SP ₀ in front of is sounded Condition 5: Speaker SP ₅ -Speaker SP ₀ guidance in the C direction Condition 6: Speaker SP ₄ -Speaker SP ₀ sounding in the C direction Condition 7 : speaker SP ₃ - inducing conditions in the B direction to ringing in the order of the speakers SP ₀ 8: loudspeaker SP ₂ - induction results in the direction B to ringing in the order of the speaker SP _0: binding of experimental It is shown in Figure 8. The horizontal axis is the distance [m] from the origin O of each listening point, and the vertical axis is the average value of "easy-to-understand guidance direction" when the voice of each of the above conditions for guiding to the B point or C point is presented. Here, the "easy-to-understand" when a wrong guidance direction different from the original guidance direction was erroneously answered, and the "easy-to-understand" when the answer was that the guidance direction was unknown. As a result of the experiment, there is no big difference in the tendency of the result when ringing any of the two speakers SP ₀ and SP ₁ before the bending portion 9, so (1) when ringing the speaker SP ₁ ( Only the results of Conditions 1 to 4) are shown in FIG. As shown in FIG. 8, when conditions 1 and 2 and conditions 3 and 4 are compared, it is generally found that the two speakers SP ₁ and SP ₂ (or the speaker SP ₄ ) sandwiching the bent portion 9 are arranged at smaller intervals. You can see that the evaluation points are good. Considering that the sound pressure attenuation of the speaker output sound at the corner (bent portion 9) is larger than that in the straight path, when the bent portion 9 is bent to guide the guided person, the bent portion 9 Two speakers SP ₁ and SP sandwiching
_It can be concluded that it is desirable that the arrangement interval of ₂ (or the speaker SP ₄ ) is shorter (about 8 m in this experiment) than the arrangement interval (about 10 m in this embodiment) in the straight passage.

Further, it is not shown in the above experimental results.
However, when guiding the bent portion 9 in a straight line without bending
(For example, guidance from B to C) is the speed at the bending part 9.
(F) The sound pressure attenuation of the output voice is significantly different from that in the straight passage.
Considering the fact that it does not cross, the arrangement interval (book
In the embodiment, it is desirable that the distance is about 10 m).
From the above result, the folding from the origin O of the bending portion 9 in FIG.
Speaker SP before and after the music section 9₂, SP₃, SP_FiveFront of
Let the distance to each be a, b, c, and 3 [m] ≤ a ≤ 5
[M], 4 [m] ≦ b ≦ 6 [m], 4 [m] ≦ c ≦ 6
[M], 7 [m] ≦ a + b ≦ 9 [m], b + c = 10
Each speaker SP to satisfy the relationship of [m] ₁Place ...
If so, the arrangement between the two adjacent speakers with the bent portion 9 in between
Compared to the conventional configuration in which the placement interval is equal to the placement interval of the straight passage
In comparison, the bend of the T-shaped passage 8 (folded portion 9)
Improves the guidance effect when guiding right or left
It can be done.

In this embodiment, from point A to point B
Only the one-way guidance to the point (or C point) has been described, but in the case of a bidirectional sound guidance device capable of guiding from the B point (or C point) to the A point, as shown in FIG. , Another speaker SP ₁ '... for each speaker SP ₁ ...
Speakers S from the origin O of the bent portion 9 before and after the bent portion 9
P ₁ , SP ₂ , SP ₄ and speakers SP ₁ ′, S
The distance to the rear end of P ₂ 'and SP ₄ ' is a ',
b ′, c ′, 4 [m] ≦ a ′ ≦ 5 [m], 4 [m]
≦ b ′ ≦ 5 [m], 4 [m] ≦ c ′ ≦ 5 [m], 8
[M] ≦ a ′ + b ′ ≦ 9 [m], 8 [m] ≦ a ′ + c ′
If the speakers SP ₁ ... Are arranged so as to satisfy the relationship of ≦ 9 [m], 8 [m] ≦ b ′ + c ′ ≦ 10 [m], the T-shaped passage 8 of the T-shaped passage 8 can be obtained even when bidirectional induction is performed. It is possible to improve the guiding effect at the corner (bent portion 9).

(Embodiment 3) A sound guiding device in this embodiment
The configuration is common to those of the first and second embodiments, and is common.
The same reference numerals are given to the parts and the description thereof will be omitted. Example
Is in the cross passage 10 where straight passages in two different directions intersect.
In addition, the speaker SP in the T-shaped passage 8 of the second embodiment₁
The arrangement configuration of ... is expanded and applied. Sanawa
Then, as shown in FIG. 10, an intersection 11 of the cross passage 10
(The part surrounded by the dotted line in Fig. 10)
Speaker SP adjacent to each other between two straight passages in different directions
₂, SP ₃, SP_Five, SP₆Alignment intervals of a straight passage
Than the arrangement interval (about 10 m in this embodiment)
It is characterized by being shortened.

That is, at the intersection 11, the distances from the intersections (origins O) of the axes of the straight passages to the front surfaces of the speakers SP ₂ , SP ₃ , SP ₅ , SP ₆ close to the intersection 11 are a and b, respectively. , C, d, 3 [m] ≦ a ≦ 5
[M], 4 [m] ≦ b ≦ 6 [m], 4 [m] ≦ c ≦ 6
[M], 3 [m] ≦ d ≦ 5 [m], 7 [m] ≦ a + b ≦
9 [m], b + c = 10 [m], 7 [m] ≦ b + d ≦ 9
By arranging the speakers SP ₁ ... To satisfy the relationship of [m], compared with the conventional configuration in which the arrangement interval between the two adjacent speakers with the intersection 11 in between is equal to the arrangement interval of the straight passage, It is possible to improve the guidance effect when the bendee (crossing portion 11) of the cross passage 10 is guided to the guided person by turning right or left (when guiding from the point A to the point B or the point C).

When performing bidirectional guidance as shown in FIG. 11, another speaker SP is attached to each speaker SP ₁ .
₁ '... and by facing away to match the respective spindle, and front and rear speakers SP _2, SP ₃ of the intersection 10 from the origin O of the intersection 10, SP _5, SP ₆ and the speaker S
Let the distances to the rear ends of P ₂ ', SP ₃ ', SP ₅ 'and SP ₆ ' be a ', b', c 'and d', respectively, 4 [m] ≤
a ′ ≦ 5 [m], 4 [m] ≦ b ′ ≦ 5 [m], 4 [m]
≦ c ′ ≦ 5 [m], 4 [m] ≦ d ′ ≦ 5 [m], 8
[M] ≦ a ′ + b ′ ≦ 9 [m], 8 [m] ≦ b ′ + c ′
≤ 9 [m], 8 [m] ≤ c '+ d' ≤ 9 [m], 8
[M] ≦ d ′ + a ′ ≦ 9 [m], 8 [m] ≦ a ′ + c ′
If the speakers SP ₁ are arranged so as to satisfy the relationship of ≦ 9 [m], 8 [m] ≦ b ′ + d ′ ≦ 9 [m], the corner of the cross passage 10 can be bent even when bidirectional guidance is performed. It is possible to improve the guidance effect when the (crossing portion 11) is guided to the guided person by turning right or left.

In the first to third embodiments, even when at least one straight passage is used as an entrance / exit from the living room, the boundary between the entrance and the exit (corner 7 in the L-shaped passage 6, T-shaped passage 8). In the bent portion 9 and the portion corresponding to the crossing portion 11 in the cross passage 10), it is possible to improve the guiding effect when the guided person is guided to turn right or left.

[0034]

According to the first aspect of the present invention, a plurality of speakers arranged in a passage of a building and emitting a guide sound, and a ringing means for sequentially ringing the plurality of speakers so that the guide sounds emitted from the speakers have a time difference. And a guide device for guiding a person in a building to a predetermined place by the guide sound, wherein a plurality of speakers are arranged at substantially equal intervals in a passage in one direction, and a corner of an L-shaped passage is provided. Since the speaker is not placed in the corner, even if the guided person in the building stops at or near the corner of the L-shaped passage, the direction of the speaker placed in the corner is incorrect as in the past. The guide effect of the sound guide device in the L-shaped passage can be easily guided by the guided person without causing the guided sound source to be guided along the correct guiding route. Can increase There is an effect that.

According to a second aspect of the present invention, there are provided a plurality of loudspeakers arranged in a passageway of a building and emitting a guide sound, and a ringing means for sequentially ringing the plurality of speakers so that the guide sounds emitted from the speakers have a time difference. A sound guide device for guiding a person in a building to a predetermined place by the guide sound, wherein a plurality of speakers are arranged at substantially equal intervals in a passage in one direction, and a corner portion of an L-shaped passage, Between the bent portions of the T-shaped passages, the intersections of the cross passages, or the passages in different directions sandwiching the boundary between the entrance and exit of the living room and the passages, the adjacent speaker arrangement intervals are the speaker arrangement intervals in the one-direction passages. Since it is shorter than the above, when guiding the person to be guided to bend the corner of the L-shaped passage, the bent portion of the T-shaped passage, the intersection of the cross passage, or the boundary between the entrance and exit of the living room and the passage. To
It is possible to make the guided person easily perceive the sound source direction of the guided sound and guide the guided person along the correct guiding route. The guided person can be guided to the corner portion of the L-shaped passage, the bent portion of the T-shaped passage, There is an effect that the guiding effect of the sound guiding device can be enhanced when the vehicle is guided by bending the intersection of the cross passage or the boundary between the entrance of the living room and the passage.

According to a third aspect of the present invention, in the passage in one direction, the corner portion of the L-shaped passage, the bent portion of the T-shaped passage, the intersection portion of the cross passage, or the boundary portion between the entrance and exit of the living room and the passage is sandwiched. Since the arrangement interval of the two speakers to be arranged is substantially equal to the arrangement interval of the plurality of speakers arranged in the passage in one direction without sandwiching a corner portion, a bent portion, an intersection portion, or a boundary portion, the L-shaped passage is formed. When guiding a passage in the same direction as it is when passing through a corner, a bent portion of a T-shaped passage, an intersection of a cross passage, or a boundary between the entrance and exit of the living room and the passage, the guided sound source direction Can be easily perceived and the guided person can be guided along the correct guiding route, and the guided person can be guided to the corner of the L-shaped passage,
There is an effect that the guidance effect of the sound guiding device can be enhanced when the vehicle is guided by passing through the bent portion of the T-shaped passage, the intersection of the cross passage, or the boundary between the entrance of the living room and the passage.

[Brief description of drawings]

FIG. 1 is a plan view showing an arrangement of speakers in a first embodiment.

FIG. 2 is a block diagram showing the same as above.

FIG. 3 is an explanatory diagram for explaining the same as above.

FIG. 4 is an explanatory diagram for explaining the same as above.

FIG. 5 is a plan view showing another arrangement of the speakers in the above.

FIG. 6 is a plan view showing an arrangement of speakers according to a second embodiment.

FIG. 7 is an explanatory diagram for explaining the same as above.

FIG. 8 is an explanatory diagram for explaining the same as above.

FIG. 9 is a plan view showing another arrangement of the speakers in the above.

FIG. 10 is a plan view showing an arrangement of speakers according to a third embodiment.

FIG. 11 is a plan view showing another arrangement of the speakers in the above.

FIG. 12 is a plan view showing an arrangement of speakers in an L-shaped passage in a conventional example.

FIG. 13 is a plan view showing another arrangement of the speakers in the L-shaped passage in the above.

FIG. 14 is a plan view showing an arrangement of speakers in a T-shaped passage in the above.

FIG. 15 is a plan view showing an arrangement of speakers in a cross passage in the above.

[Explanation of symbols]

6 L-shaped passage 7 corners SP _{1 to} SP ₄ speaker

Claims (3)

[Claims] 1. A guide sound comprising: a plurality of speakers arranged in a passage of a building to emit a guide sound; and a ringing means for sequentially ringing the plurality of speakers so that the guide sounds emitted from the speakers have a time difference. Is a sound guiding device for guiding a person in a building to a predetermined place by arranging a plurality of speakers in a passage in one direction at substantially equal intervals, and not arranging a speaker in a corner of an L-shaped passage. A sound guidance device characterized in that 2. The guide sound comprises: a plurality of speakers arranged in a passage of a building to emit a guide sound; and a ringing means for sequentially ringing the plurality of speakers so that the guide sounds emitted from the speakers have a time difference. Is a sound guiding device for guiding a person in a building to a predetermined place by arranging a plurality of speakers in a passage in one direction at substantially equal intervals, and folding a corner portion of an L-shaped passage and a T-shaped passage. Between the curved portions, the intersection of the cross passage, or the passages in different directions across the boundary between the entrance and exit of the living room and the passage, the spacing between adjacent speakers is shorter than the spacing between the speakers in the above-mentioned one-way passage. Sound guidance device characterized by 3. Two speakers arranged in a unidirectional passage with a corner portion of the L-shaped passage, a bent portion of the T-shaped passage, an intersection of a cross passage, or a boundary portion between the entrance and exit of the living room and the passage. 3. The sound according to claim 2, wherein the arrangement interval of the plurality of speakers is substantially equal to the arrangement interval of the plurality of speakers arranged in the passage in one direction without sandwiching a corner portion, a bent portion, an intersection portion, or a boundary portion. Guidance device