JP6485994B2 - Evacuation guidance system - Google Patents

Description

  The present invention relates to an evacuation guidance system for evacuating an evacuee to a safe evacuation port or the like by evacuation guidance broadcasting.

  Conventionally, as general evacuation guidance devices installed together with fire alarm equipment, emergency broadcasting equipment and light-running evacuation guidance systems are known in addition to guide lights determined by the Fire Service Act that always light up to guide evacuation. It has been.

  The emergency broadcast equipment is linked to the automatic fire alarm system, and when a fire occurs, a simultaneous emergency broadcast including guidance on evacuation guidance is sent from speakers installed in the hallway of the building to prompt prompt evacuation. Yes.

  The light-running evacuation guidance system also arranges the light source continuously on the floor or under the wall of the passage and blinks sequentially, making it appear as if the light is traveling, and along the light traveling direction. If you evacuate, you can reach the exit.

JP 2004-310629 A JP 2002-253688 A

  However, conventional emergency broadcasting equipment uses an omnidirectional speaker and plays a large volume to guide evacuation as a simultaneous emergency broadcast. Depending on the location, the guidance function to the evacuation exit at the shortest distance is sufficient. There is also a fear that it cannot be fulfilled.

  In the light-running evacuation guidance system, the light sources arranged on the floor of the aisle are blinked sequentially to make it appear as if the light is running, but depending on the viewing position and the person, it may simply blink. There is a problem that the direction of the evacuation exit is not fully understood even if it is confused by the occurrence of a fire. There is also the possibility of losing sight of the light source due to a layer of smoke generated during a fire. Furthermore, there is a problem that the light-running evacuation guidance system is not useful for the blind.

  In order to solve this problem, the applicant of the present application sets a directivity direction in a direction crossing the route along a route (passage) leading to an evacuation place such as an evacuation exit with a plurality of directional speakers at predetermined intervals. An evacuation guidance system is proposed in which an evacuation guidance broadcast indicating the direction and distance to an evacuation site is output from a directional speaker when a fire occurs.

  According to this evacuation guidance system, when an evacuee passes in front of a directional speaker, he can hear the evacuation guidance broadcast and know the direction and distance from the current position to the evacuation exit. Even in such a situation, it is possible to confirm the evacuation site and to enable a calm evacuation action.

  However, when a fire breaks out, a person who is unfamiliar with the location does not know the location of the evacuation exit, and may evacuate in a direction opposite to the direction of the evacuation exit depending on the content of the broadcast. In this case, even if the evacuation guidance broadcast is heard in front of the directional speaker, it is not possible to go to the evacuation exit, so there is a possibility that the distance to the evacuation exit may be erroneously recognized. Also, if you are not facing the evacuation exit, when you pass in front of the directional speaker, the distance to the evacuation exit is longer than the distance heard by the previous directional speaker. I noticed that I was evacuating, but I didn't notice the moment when I was confused, and even if I realized it was strange, there was no indicator to judge the direction, so it was difficult to take action in the reverse direction, which spurred the confusion. There is a risk of calling.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an evacuation guidance system capable of promptly and safely evacuating by accurately transmitting information indicating the direction to an evacuation exit to an refugee heading to the evacuation exit by an evacuation guidance broadcast. .

(Evacuation guidance system)
The evacuation guidance system of the present invention
A plurality of directional speakers arranged by setting a directivity direction in a direction crossing the route on the route to the evacuation place (evacuation exit);
A broadcasting device that outputs a predetermined evacuation guidance broadcast that directs to an evacuation site from a directional speaker in the event of a fire;
A plurality of display devices arranged along the route to the evacuation site;
A display control device that controls a plurality of display devices so as to display a predetermined guidance pattern having a movement indicating the direction of an evacuation place when a fire occurs;
With
The directional speaker is characterized in that the evacuation guidance broadcast is propagated to a limited range in a direction intersecting the route, and is output at a volume that can be clearly heard only when the refugee crosses the range.

(Plane wave speaker)
The directional speaker includes a plane wave speaker that outputs acoustic vibration as a plane wave.
(Distance to evacuation exit)
The broadcast device repeatedly outputs an evacuation guidance broadcast indicating the distance from the directional speaker to the evacuation site.

(Content of evacuation guidance broadcast)
The broadcasting device outputs an evacuation guidance broadcast indicating the distance from the directional speaker installed in the corridor to the evacuation site including the words of the evacuation exit or the stairs, and from the directional speaker installed on the emergency stairs, An evacuation guidance broadcast showing the distance to the evacuation site including the words is output.

(Configuration of broadcasting device)
Broadcast equipment
Broadcast reproduction that is provided for each directional speaker, stores predetermined evacuation guidance broadcast information corresponding to the installation location of the directional speaker, and reproduces and outputs the evacuation guidance broadcast information stored by an external control signal. Equipment,
A broadcast control device that controls communication by connecting to a broadcast reproduction device;
Is provided.

(Dark spot driving)
The display control device repeats the control of blinking sequentially toward the direction of the evacuation site with a plurality of display devices lit at the same time, and displays a line of light with continuous light spots toward the evacuation direction. A guidance pattern that looks like a dark spot traveling in the evacuation direction is displayed.

(Lighting flash display)
The display device includes an indicator lamp, and when the indicator lamp is lit, the lamp is driven for a predetermined time with a predetermined light emission amount to output a flash light, and then the lighting drive with a predetermined light amount lower than the previous light emission amount is maintained.

(Cooperation with emergency broadcasting facilities)
When the broadcast device receives a broadcast transmission signal indicating a sensor alert broadcast by a female voice message from an emergency broadcast facility, it outputs an evacuation guidance broadcast by a male voice message from a directional speaker, and a fire broadcast by a male voice message from the emergency broadcast facility Is received, a evacuation guidance broadcast by a female voice message is output from the directional speaker.

(Basic effect)
According to the evacuation guidance system of the present invention, the directional speaker is disposed on a route (passage) leading to an evacuation place such as an evacuation exit with a directional direction set in a direction crossing the route, and along the route. A plurality of display devices are arranged, and when a fire breaks out, a predetermined evacuation guidance broadcast that guides to the evacuation site by the broadcasting device is output from the directional speaker, and the direction of the evacuation site is indicated by the display control device. Since a plurality of display devices are controlled so as to display a predetermined guidance pattern, the refugee listens to the evacuation guidance broadcast when passing in front of the directional speaker, for example, the distance from the current position to the evacuation site The evacuation direction in which light travels in the evacuation direction of a plurality of display devices arranged along the route or the band of light extends in the evacuation direction is indicated. You can confirm that you are heading to the evacuation site by looking at the display of moving guidance patterns, and you can check the distance and direction to the evacuation site even if you are unfamiliar with the evacuees and do not know the evacuation site By being able to do so, it becomes possible to take calm evacuation actions promptly.

  In addition, since evacuation guidance is provided both by broadcasting and display, even a visually impaired person or a hearing impaired person can judge the situation and evacuate appropriately.

  In addition, the broadcasting device always includes the words “evacuation exit” or “evacuation staircase” in the evacuation guidance broadcast from the directional speakers installed in the corridor, so that it can reach the evacuation exit or the stairs. You can make the evacuees understand clearly that there is.

  In addition, the broadcasting device must include the word “evacuation floor” in the evacuation guidance broadcast from the directional speaker installed on the emergency staircase, so that the evacuees can clearly understand that they have reached the evacuation exit. be able to.

(Effects of directional speakers)
A directional speaker is a plane wave speaker that outputs acoustic vibrations as a plane wave, and the broadcast sound is not diffused like a spherical wave by a conventional speaker, but propagates to a limited range in the direction crossing the passage. Broadcast sound can be heard clearly when crossing, and broadcast sound having different contents can be clearly heard without interfering with each other even if directional speakers are arranged at predetermined intervals along the passage. Also, since the sound waves go straight without diffusing, the broadcast sound can be heard clearly without being affected by the surrounding noise without increasing the volume as in the conventional evacuation guidance broadcast.

  In addition, when smoke from fire spreads, it is difficult to see the guidance pattern indicating the direction of evacuation because the field of view is obstructed, but you can hear the evacuation guidance broadcast by the directional speaker, and it is in a tense situation. It is also possible to know the distance to the evacuation site and take appropriate evacuation action.

(Effects of displaying moving guidance patterns)
In addition, by controlling a plurality of display devices arranged along the route to the evacuation site, a light spot traveling in the evacuation direction, a light band extending in the evacuation direction, a light line by simultaneous lighting and light traveling in the evacuation direction or light extending in the evacuation direction In order to display a moving guidance pattern (dynamic guidance pattern) that indicates the evacuation direction, such as a combination with a band, running of a dark spot in a light line, or a band of light that shrinks in the evacuation direction, simply indicate the evacuation direction with letters or arrows Compared to the static guidance pattern display without movement shown in the display, etc., the evacuation direction can be impressed by the evacuees, and the evacuee grasps the evacuation direction intuitively by looking at the movement guidance pattern display. In combination with the evacuation guidance broadcast by the directional audio playback device, it is possible to evacuate quickly and safely without losing sight of the evacuation route and its direction.

(Cooperation with emergency broadcasting facilities)
When the broadcast device receives a broadcast transmission signal indicating a sensor alert broadcast by a female voice message from an emergency broadcast facility, it outputs an evacuation guidance broadcast by a male voice message from a directional speaker, and a fire broadcast by a male voice message from the emergency broadcast facility When an evacuation guidance broadcast with a female voice message is output from a directional speaker when a broadcast transmission signal indicating is received, a sensor notification broadcast with a female voice is being performed from an emergency broadcast facility. Evacuation guidance broadcasts by male voices, and sensor announcement broadcasts by male voices from emergency broadcast equipment, evacuation guidance broadcasts by female voices are conducted from directional speakers. Evacuees can clearly hear evacuation guidance broadcasts from directional speakers, even during broadcasts or fire broadcasts. Kill.

Explanatory diagram showing schematic configuration of evacuation guidance system Explanatory drawing showing the layout of directional speakers and display devices for evacuation routes Block diagram showing the schematic configuration of the broadcast control device installed on the center side Block diagram showing the schematic configuration of a broadcast playback device installed for each directional speaker Block diagram showing the schematic configuration of the display control device installed on the center side Block diagram showing schematic configuration of display device installed on evacuation route Explanatory drawing showing examples of broadcast control and display control for evacuation guidance Explanatory drawing showing other arrangements of directional speakers and display devices for evacuation routes Explanatory drawing which showed other embodiment of the evacuation guidance system linked with emergency broadcast equipment

[Configuration of evacuation guidance system]
FIG. 1 is an explanatory diagram showing a schematic configuration of an evacuation guidance system according to the present invention. In FIG. 1, the evacuation guidance system of the present invention includes a broadcast control device 10, a broadcast playback device 12, a plurality of directional speakers 14, a display control device 100, and a plurality of display devices 102.

(Evacuation guidance by broadcasting)
The broadcast control device 10, the broadcast playback device 12, and the plurality of directional speakers 14 perform evacuation guidance by broadcasting.

  The broadcast reproduction device 12 is provided for each directional speaker 14, stores predetermined evacuation guidance broadcast information corresponding to the installation location of each directional speaker 14, and is stored in advance by a control signal from the broadcast control device 10. Performs playback output and stop playback of guided broadcast information. The broadcast control apparatus 10 performs broadcast control for communication control with the broadcast reproduction apparatus 12. The broadcast control apparatus 10 and the broadcast reproduction apparatus 12 constitute a broadcast apparatus as claimed.

  The broadcast control device 10 is installed in a disaster prevention center or the like. The broadcast control apparatus 10 is connected to a receiver of the automatic fire alarm facility 16 through the transmission line 15 and receives a fire signal specifying the fire occurrence location. A transmission path 11 is drawn out from the broadcast control apparatus 10, and a plurality of broadcast reproduction apparatuses 12 arranged on the passage side of the evacuation path on each floor of, for example, a building to be evacuation guidance are connected to the transmission path 11, and signals are transmitted by communication connection. Send and receive.

  A unique address is set in advance in the broadcast reproduction device 12, and broadcast start / stop control and the like are performed by an addressed transmission signal with the broadcast control device 10. A directional speaker 14 is connected to the broadcast reproduction device 12. The directional speakers 14 are arranged at predetermined intervals along the passage serving as an evacuation route, and the directivity direction thereof is set to a direction crossing the passage so that the refugee can hear the broadcast without fail.

(Configuration of directional speaker)
The directional speaker 14 is a plane wave speaker that outputs acoustic vibrations as a plane wave. For example, the directional speaker 14 is known as a flat panel speaker having a speaker body with a thickness of about 10 millimeters. A plane wave speaker, for example, arranges a plurality of voice coils behind a flat diaphragm and is driven by an acoustic signal to translate the diaphragm, generate plane wave vibration, and emit sound with high directivity toward the front. Propagate.

  The directional speaker 14 using such a plane wave speaker is arranged in the direction crossing the passage serving as an evacuation route with the directional direction directed and an evacuation guidance broadcast is output, so that the refugee is placed in front of the directional speaker 14. Can be heard clearly when crossing. The sounds from adjacent directional speakers are highly directional, so they cannot be heard from each other, and evacuees can clearly hear only the broadcast from the directional speaker 14 at the passing position. Can do.

  In addition, the high directivity of the directional speaker 14 makes it possible to hear the broadcast contents clearly without being affected by the noise even in a situation where the noise is increased due to the evacuation action.

(Evacuation guidance by light)
The display control device 100 and the display device 102 perform evacuation guidance using light. The display device 102 is arranged along the route to the evacuation site. The display control device 100 controls the plurality of display devices 102 so as to display a predetermined guidance pattern having a movement indicating the direction of the evacuation place when a fire occurs.

  The display control device 100 is installed in a disaster prevention center or the like in the same manner as the broadcast control device 10. Similar to the broadcast control device 10, the display control device 100 is connected to the receiver of the automatic fire alarm facility 16 through the transmission line 15, and receives a fire signal specifying the fire occurrence location.

A transmission path 101 is drawn from the display control apparatus 100, and a plurality of display apparatuses 102 are connected to the transmission path 101. The display device 102 of this embodiment includes a flashlight that outputs a powerful light, known as a flash lamp. A unique address is assigned in advance to the display device 102 connected to the transmission path 101, and display drive start / stop control and the like are performed by a transmission signal to which an address is given from the display control device 100.

(Arrangement of directional speaker and display device)
FIG. 2 is an explanatory diagram showing an example of the arrangement of the directional speakers and the display device in the passage leading to the evacuation exit.

  In FIG. 2, for example, an emergency door is provided as an evacuation port 32 on the left side at the end of the passage L. When the emergency door is opened, an emergency stairs or other evacuation site can be reached.

The position of a predetermined height of the left wall surface of the passage L toward the evacuation port 32, a predetermined distance, for example at 5 m intervals to place the directional loudspeaker 14, the directivity direction of the directional speaker 14, as indicated by dotted arrows , And arranged so as to face the direction crossing the depth direction of the passage L.

  A plurality of display devices 102 are arranged on the ceiling surface of the passage L at a predetermined interval so as to be in a straight line in the depth direction (evacuation direction) of the passage L provided with the escape port 32. The plurality of display devices 102 arranged on the ceiling surface can be seen in the depth direction of the passage when viewed from a person passing through the passage.

  When a fire occurs, the broadcast start device 10 transmits a broadcast start control signal to the broadcast player 12 so that the current position is directed from the directional speaker 14 in the direction of the direction crossing the passage L serving as an evacuation route. The evacuation guidance broadcast indicating the direction and distance from the evacuation exit 32 is output, and when the refugee crosses in front of the directional speaker 14, the broadcast content can be heard clearly.

  When a fire occurs, a display control signal is transmitted from the display control device 100 to the plurality of display devices 102 arranged on the ceiling surface, and a predetermined guidance pattern having a movement indicating the direction of the evacuation site is transmitted. indicate.

[Configuration of Broadcast Control Device]
FIG. 3 is a block diagram showing a schematic configuration of the broadcast control apparatus 10 arranged on the center side.

  In FIG. 3, the broadcast control apparatus 10 includes a control unit 18, an operation unit 19, a display unit 20, a microphone 21, and a communication unit 22, and operates by receiving DC power from a power supply unit with a standby power supply (not shown). . The control unit 18 is a function realized by executing a program, and as a hardware, a computer device provided with a CPU, a memory, various input / output ports, and the like is used.

  The communication unit 22 is connected to the automatic fire alarm facility shown in FIG. 1 via the transmission line 15 and receives a fire signal. The communication unit 22 is connected to the plurality of broadcast reproduction apparatuses 12 shown in FIG. 1 via the transmission line 11 and transmits and receives signals between them.

  When the control unit 18 detects reception of a fire signal from the automatic fire alarm facility 16 shown in FIG. 1 or when reception of a broadcast start operation by the operation unit 19 is detected, the broadcast reproduction device that requires evacuation guidance The broadcast reproduction apparatus 12 that performs control to transmit a control signal including a common address designating all 12 addresses and a broadcast start command, reads the pre-registered audio data, and receives the evacuation guidance broadcast signal. And the evacuation guidance broadcast from the directional speaker 14 is output.

  When the control unit 18 detects reception of a fire recovery signal from the automatic fire alarm facility 16 or when it detects a broadcast stop operation by the operation unit 19, the control unit 18 includes a control signal including the common address of the broadcast reproduction device 12 and a broadcast end command. The broadcast reproduction device 12 that has received the control signal stops the reproduction output from the directional speaker 14 of the evacuation guidance broadcast.

[Broadcast playback device configuration]
FIG. 4 is a block diagram showing a schematic configuration of a broadcast reproduction device arranged on the evacuation route side. In FIG. 4, the broadcast reproduction apparatus 12 includes a reproduction control unit 24, a communication unit 26, an audio storage unit 28, and a reproduction amplification unit 30, and receives supply of DC power from a power supply unit with a standby power supply (battery) (not shown). Works. The reproduction control unit 24 is a function realized by executing a program, and as a hardware, a computer circuit or a wired logic circuit provided with a CPU, a memory, various input / output ports, and the like are used.

The communication unit 26 receives an instruction from the reproduction control unit 24 and transmits / receives a signal to / from the broadcast control device 10 disposed on the center side. The voice storage unit 28 stores voice data of evacuation guidance broadcasting corresponding to the installation location of the directional speaker 14 in advance. This audio data is, for example, audio data of broadcast contents indicating the distance to the evacuation exit. The basic audio data is as follows (1) to (3).
(1) “The evacuation exit is straight and XX meters”
(2) “Evacuation exit turns right and is XX meters”
(3) "Evacuation exit turns left and is XX meters"
“XX” is the distance from the installation position of the directional speaker 14 to the evacuation exit serving as an evacuation place, and a unique distance corresponding to the speaker installation position is set in advance.

  The voice message of the evacuation guidance broadcast output from the directional speaker 14 installed in the corridor part must always include the words “evacuation exit” or “evacuation staircase” so that the refugee can use the evacuation exit or stairs. Help them understand clearly that they are getting close.

  Here, the range in which the sound from the directional speaker 14 can be clearly heard is within a range of 2 meters, which is approximately 1 meter forward and backward in the traveling direction with respect to the center line indicating the directional direction across the passage. The time for passing through this range is approximately 1 to 2 seconds when the moving speed of the evacuees is about 4 to 8 meters / second, for example, and the audio data is determined so that the contents can be heard during that time. For this purpose, it is necessary to make the audio data as short as possible. Except for “straight ahead”, “right turn” and “left turn”, the audio data can be “XX meters to the exit” indicating the distance to the exit. good.

  The audio amplifying unit 30 inputs and amplifies the evacuation guidance broadcast signal generated from the audio data in the audio storage unit 28 by the reproduction control unit 24, and outputs it from the directional speaker 14.

  When the reproduction control unit 24 detects the effective reception of the control signal from the broadcast control device 10 via the communication unit 26, the reproduction control unit 24 controls the start and stop of reproduction of the evacuation guidance broadcast based on the control content of the control signal.

  Note that “effective reception of control signal” means that the common address included in the received signal is recognized, or that the destination address included in the received signal matches the self address registered in advance in the memory, Further, it means that the signal content is recognized as having no abnormality. Hereinafter, such effective reception may be simply referred to as reception.

[Configuration of display control device]
FIG. 5 is a block diagram showing a schematic configuration of the display control apparatus 100 arranged on the center side.

  In FIG. 5, the display control apparatus 100 includes a control unit 104, a communication unit 106, an operation unit 108, and a display unit 110, and operates by receiving a DC power supply from a power supply unit with a standby power supply (not shown). The control unit 104 is a function realized by executing a program. As hardware, a computer device including a CPU, a memory, various input / output ports, and the like is used.

  The communication unit 106 is connected to the automatic fire alarm facility 16 shown in FIG. 1 via the transmission line 15 and receives a fire signal. The communication unit 106 is connected to the plurality of display devices 102 illustrated in FIG. 1 via the transmission path 101, and transmits and receives signals between them.

  When the control unit 104 detects the reception of a fire signal from the automatic fire alarm facility 16 shown in FIG. 1, the control unit 104 guides the evacuation of the building stored in advance in the memory based on the information indicating the fire occurrence location included in the fire signal. From the route information, a safe evacuation guide route and its direction to the fire occurrence place on the fire occurrence floor are determined, and a plurality of display devices 102 arranged along the determined evacuation guide route are sequentially directed toward the evacuation direction, for example. The driving control (light spot traveling control) is repeated to display a moving guidance pattern indicating the evacuation direction.

  The control unit 104 determines the evacuation guide route and its direction by setting the fire occurrence location as the starting point, determining the evacuation guide route in the direction from the starting point to the evacuation exit, and arranging the evacuation guide route along the determined evacuation guide route. The display device 102 acquires the address of the display device 102, generates a display control address list in which addresses are arranged in order from the base point toward the evacuation exit, and sequentially reads the display control address list from the display control address list and displays a display control signal having the set address. The control to transmit to 102 is repeated, and the display directions of the plurality of display devices 102 are sequentially directed toward the evacuation direction, thereby displaying the evacuation direction.

  For example, as shown in FIG. 2, the plurality of display devices 102 arranged along the ceiling surface of the passage L toward the evacuation exit are sequentially blinked in the evacuation direction, and the refugee can be operated by repeating this operation. A guidance pattern that appears as if the light spot travels in the direction of evacuation is displayed.

  In addition, the control unit 104 repeats control to sequentially display and drive the plurality of display devices 102 installed on floors other than the fire occurrence floor toward the evacuation direction of a predetermined evacuation guidance route stored in the memory in advance, thereby setting the evacuation direction. Display. For evacuation guidance on floors other than the floor where the fire occurred, it is not necessary to avoid the location of the fire occurrence, so the optimum evacuation guidance route and its direction are determined in advance, and display control of the display device 102 is performed accordingly.

  In addition, when the control unit 104 detects reception of a fire recovery signal from the automatic fire alarm facility 16 or when a display stop operation by the operation unit 108 is detected, the control unit 104 performs control to transmit a display stop control signal, and the display stop signal The display operation is stopped by the display device 102 that has received the message.

  Here, display control of the guidance pattern performed by controlling the plurality of display devices 102 by the display control device 100 includes the following.

(1) Light spot traveling As described above, the control of blinking the plurality of display devices 102 in order toward the evacuation direction is repeated. In this case, a guidance pattern that is visible to the evacuees is displayed so that the light spot travels in the evacuation direction.

(2) Extending band of light The control to turn on the plurality of display devices 102 in order toward the evacuation direction is repeated. In this case, a guidance pattern that is visible to the evacuees is displayed so that the light spot extends toward the evacuation direction.

(3) Combination of light line and light spot running The control of turning on the plurality of display devices 102 all at once and the control of blinking in turn toward the evacuation direction while being turned off all at once are alternately repeated. In this case, by simultaneously lighting the plurality of display devices 102, a line of light with continuous light spots toward the evacuation direction is displayed, and thereby the evacuation route can be known. Subsequently, a plurality of display devices 102 are sequentially blinked in the direction of evacuation in a state where all the lights are turned off, and a guide pattern that appears to travel as a light spot is displayed.

(4) Combination of light line and extending light band The control to turn on the plurality of display devices 102 all at once and the control to turn on in order toward the evacuation direction in a state of turning off all at once are alternately repeated. In this case, by simultaneously lighting the plurality of display devices 102, a line of light with continuous light spots toward the evacuation direction is displayed, and thereby the evacuation route can be known. Subsequently, the plurality of display devices 102 are sequentially turned on in the evacuation direction in a state where the lights are turned off all at once, and an evacuation pattern that appears as if a band of light extends in the evacuation direction is displayed.

(5) Running at a dark spot In a state where a plurality of display devices 102 are turned on all at once and a light line is displayed, the control of blinking in order toward the evacuation direction is repeated. In this case, the light line by simultaneous lighting blinks in order toward the evacuation direction, thereby displaying a guidance pattern that makes it seem that the dark spot by turning off the light travels in the evacuation direction.

(6) Shrinking light band In a state where a plurality of display devices 102 are turned on all at once and a light line is displayed, the control of turning off the lights in order toward the evacuation direction is repeated. In this case, the light lines displayed by simultaneous lighting are sequentially turned off along the light lines, thereby displaying a guidance pattern that appears to contract the light band toward the evacuation direction.

The display control device 100 performs display control according to any one of (1) to (5), and further, display control based on the combination thereof, and displays a guidance pattern with movement indicating the evacuation direction by the plurality of display devices 102, The evacuees who have seen this can intuitively grasp the evacuation direction.

[Configuration of display device]
FIG. 6 is a block diagram showing a schematic configuration of the display device. 6, the display device 102 includes a communication unit 112, a display control unit 114, a display driving unit 116, and an indicator lamp 118, and operates by receiving DC power supplied from a power source unit with a standby power source (battery) (not shown). To do. The display control unit 114 is a function realized by executing a program. As hardware, a computer circuit or a wired logic circuit having a CPU, a memory, various input / output ports, and the like are used.

  The communication unit 112 receives an instruction from the display control unit 114 and transmits / receives a signal to / from the display control device 100 arranged on the center side.

  The display control unit 114 outputs a display drive signal to the display drive unit 116 when the display control unit 114 determines effective reception of the display control signal specifying its own address from the display control device 100 via the communication unit 112. 118 is turned on.

  As the indicator lamp 118, for example, a white LED is used, and is arranged at a position where it can be easily seen from the outside, such as the top of the apparatus cover.

  Here, when the guide pattern is displayed by the display device 102, the display lamp 118 is driven as a flashlight to emit powerful light.

The driving of the indicator lamp 118 includes blinking driving and lighting driving. When the display lamp 118 is driven to blink, the display drive unit 116 that has received the display drive signal from the display control unit 114 drives the display lamp 118 in a pulsed manner so that the light emission amount becomes approximately the maximum light emission amount for a predetermined short period of time. To output a flash.

When the display lamp 118 is driven to be lit, the display drive unit 116 that has received the display drive signal from the display control unit 114 drives the display lamp 118 in a pulse manner so that the light emission amount becomes approximately the maximum light emission amount for a predetermined short period of time. Then, after the flash is output, the light emission is output in two steps of high and low, which is driven to light up so that the predetermined light emission amount is lower than the maximum light emission amount.

  In this way, the display lamp 118 is driven to output flashing light regardless of blinking or lighting, thereby improving the visibility in displaying the guidance pattern such as the traveling of the light spot and the extending light band.

  When displaying a light line by lighting a plurality of display devices 102 all at once, the display driving unit 116 drives the display lamp 118 so that a predetermined light emission amount is obtained. In this case, the display driving unit 116 is also driven. Alternatively, the visibility may be enhanced by driving the indicator lamp 118 to blink between a predetermined maximum light emission amount and a predetermined light emission amount lower than the predetermined maximum light emission amount at predetermined time intervals.

[Evacuation guidance control]
The evacuation guidance control in the evacuation guidance system of the present invention will be specifically described as follows.
(Basic evacuation guidance control)
FIG. 7 shows a part of the floor of the building as an evacuation guidance target area. The passages L1 to L3 go straight to the passage L4, and there are evacuation openings 32a and 32b on both sides of the passage L4.

  Directional speakers 14-11 to 14-46 are disposed in the passages L1 to L4, for example, at intervals of 5 meters, and the display devices 102-11 to 102m1 are disposed on the ceiling surface of the passages L1 to L4, for example, at intervals of 2.5 meters. 102-413 are arranged. Hereinafter, the directional speakers 14-1 to 14-4 are collectively referred to as the directional speaker 14 when not distinguished from each other, and the display devices 102-11 to 102-413 are collectively referred to without being distinguished from each other. That's it. A broken arrow indicates the directivity direction of the directional speaker 14.

  When a fire occurs, an evacuation guidance broadcast indicating the distance from the directional speaker 14 arranged along the passages L1 to L4 to the evacuation ports 32a and 32b is output as shown in the balloon shown in the figure.

For example, every time an evacuee who goes to the evacuation port 32a through the passage L1 passes in front of the directional speakers 14-11, 14-12, 14-41,
“The evacuation exit turns 15 meters left”
"The exit is 10 meters after turning left"
“The exit is 10 meters straight”
“The evacuation exit is 5 meters straight”
Evacuation guidance broadcasts can be heard in order, and evacuation can be performed while knowing the distance to the evacuation port 32a.

  Moreover, when a fire occurs, the display apparatus 102 arrange | positioned along the ceiling surface of passage L1-L4 displays the guidance pattern with the movement which shows the direction which goes to the escape ports 32a and 32b.

  For example, the display devices 102-11 to 102-15 arranged in the passage L1 are displayed and driven in order in the direction indicated by the arrow a1, for example, and a guidance pattern that appears to the refugee so that the light spot travels in the direction of the arrow a1 is displayed. To do. In addition, the display devices 102-41 to 102-45 arranged in the passage L4 toward the evacuation port 32a are sequentially displayed and driven in the direction indicated by the arrow a4 toward the evacuation port 32a, and the light spot travels toward the evacuation direction. The guidance pattern that the refugee sees is displayed. The other display devices 102 are sequentially displayed and driven in the directions indicated by arrows a2, a3, and a5, and similarly display guidance patterns that are visible to the refugee so that the light spot travels in the evacuation direction.

  For this reason, the refugee knows the evacuation direction by seeing the guidance pattern in which the light spot appears to travel in the evacuation direction by the display driving of the plurality of display devices 102, and evacuates when passing in front of the directional speaker 14. Listen to the guidance broadcast to know the distance to the evacuation exit, especially in situations where the lights are turned off and the lights are switched to an emergency light and it is dark, or even if the visibility is not effective due to smoke, and the direction of the evacuation exit 32 By knowing the distance, it is possible to evacuate while keeping calm without falling into a panic.

(Evacuation guidance control accompanying change of evacuation exit)
The broadcast control device 10 transmits a control signal to change the broadcast content to the broadcast reproduction device 12 based on the operation on the center side by the operator who has determined whether the fire has spread or the concentration of the evacuees at a specific evacuation port, and broadcast Control to change the contents.

  For example, as shown in FIG. 7, for the directional speakers 14-21 and 14-22 in the passage L <b> 2 that was initially performing the evacuation guidance broadcasting to the evacuation port 32 b, the guidance destination is changed from the evacuation port 32 b to the evacuation port. When the operation for switching to 32a is performed, the content of the evacuation guidance broadcast from the directional speakers 14-21 and 14-22 is changed to the broadcast content indicating the direction of the switched evacuation port 32a and the distance to it. Output.

When such a broadcast control device 10 performs change control of the evacuation guidance broadcast, the broadcast control device 10 outputs a control signal indicating the change of the evacuation route to the display control device 100 via the transmission path 15 and receives it. The displayed control device 100 transmits a display control signal to the display device 102 so as to display the guidance pattern indicating the evacuation direction corresponding to the changed evacuation route, and changes the guidance pattern.

(Evacuation guidance control prohibiting the use of elevators)
When the broadcast reproduction device 12 installed in the passage serving as an evacuation route where the elevator is arranged receives a control signal for starting the evacuation guidance broadcast from the broadcast control device 10, for example, "Elevator cannot be used" from the directional speaker 14. The evacuation guidance broadcast including is output. For this reason, when a fire occurs, it is possible to prevent a refugee from rushing into an elevator that has stopped operating and causing confusion.

(Evacuation guidance control prohibiting traffic in fire locations)
The broadcast control device 10 controls to output an evacuation guidance broadcast such as “fire is prohibited and traffic is prohibited” from the directional speaker 14 arranged in the passage passing near the place where the fire occurred. . For this reason, it is possible to prevent a evacuation action involving a danger such as passing through a place where a fire occurs or near it, and guide it to a evacuation exit through a safe route.

  In this case, the display control device 100 displays the guidance pattern so that the direction away from the fire occurrence location is the evacuation direction on the plurality of display devices 102 arranged in the passage passing near the location where the fire occurred. Take control.

(Control to guide the rescue team)
When the broadcast control apparatus 10 detects an operation indicating completion of evacuation from the evacuation target area, the broadcast control apparatus 10 performs guided broadcast control of the rescue team based on an operation on the center side by a person in charge who receives a request from a fire engine or the like.

  The rescue control guidance broadcast control by the broadcast control device 10 is, for example, a guidance broadcast indicating the distance from the directional speaker 14 installed in the passage leading to the place where the fire occurred to the fire site. Is a guided broadcast.

In addition, when the display control device 100 receives a rescue broadcast control broadcast control signal from the broadcast control device 10 via the transmission path 15 , the display control signal is sent to the display device 102 installed in the passage leading to the place where the fire occurred. Is transmitted, and a control is performed to display a guidance pattern in which the direction toward the fire occurrence location is the guidance direction.

  For this reason, rescue workers who have entered the fire floor from an evacuation exit or the like hear the broadcast of the directional speaker 14 to know the distance to the fire site and know the direction of the fire site from the guidance pattern of the display device 102. Enables rescue operations to be performed safely.

  In a place close to the fire site in this way, the smoke from the fire is filled and there is almost no visibility, and rescue workers are equipped with air cylinders and fireproof clothing, and they are guided and displayed by the directional speaker 14 With the guidance display by the device 102, it is possible to perform an action in which the situation at the site is accurately determined.

(Control of evacuation guidance training)
The broadcast control device 10 periodically controls evacuation guidance training broadcasts. For example, the broadcast control device 10 sets, for example, 30 minutes from noon on the first Monday of every month as a broadcast time zone of the evacuation guidance training broadcast, and transmits a training broadcast control signal to the broadcast playback device 12 during this time zone, The evacuation guidance training broadcast is output intermittently from the directional speaker 14 .

When the display control device 100 receives a control signal of the evacuation guidance training broadcast from the broadcast control device 10 via the transmission path 15 , the display control device 100 transmits the display control signal to the display device 102 disposed in the passage to guide the evacuation direction. Control to display the pattern.

  Thus, for example, if the area to be evacuated is an office building floor, when a person who is working passes in front of the directional speaker 14 in the passage during lunch break, he / she listens to an evacuation guidance training broadcast and guides the display device 102. By looking at the pattern, the distance from the current position to the evacuation exit and the evacuation direction are known, and this is the training for evacuation behavior in the event of a fire.

  In addition, the evacuation guidance training broadcast and guidance pattern display performed at a specific time on a specific month and day will not be experienced by all people entering and exiting the evacuation guidance target area, but only some of them. However, if you are experiencing evacuation guidance training broadcasts and guidance pattern display, you can take the lead in taking an appropriate evacuation action from a leadership position in the event of a fire. It is possible to make full use of the results of.

[Other arrangements of display devices]
FIG. 8 shows another embodiment of the present invention, which is characterized in that a plurality of display devices 102 are arranged at predetermined intervals along the floor surface of the passage L serving as an evacuation route. In addition, the directional speaker 14 is arrange | positioned along the side wall surface of the channel | path L used as an evacuation route similarly to FIG.

  Thus, when the display device 102 is installed on the floor surface, the display device body is embedded and installed on the floor surface, and the upper surface thereof is covered with a transparent or translucent cover, so that there is sufficient room for installation. Moreover, since the wiring for the display device 102 can be performed from under the floor, the installation work is facilitated.

  Furthermore, since smoke due to fire accumulates from the ceiling side, the display device 102 is arranged on the floor side, so that even if smoke flows into the evacuation route, the visibility of the guidance pattern indicating the evacuation direction is visible. Can be secured.

[Other arrangements of directional speakers]
In FIGS. 2 and 8, the directional speakers 14 are arranged at predetermined intervals on the side wall surface along the evacuation route. In addition, the directional speakers are provided on the floor and ceiling of the passage serving as the evacuation route. May be installed so that the directivity direction is up or down.

  Further, directional speakers may be arranged on both sides of the upper part of the side wall surface of the passage so that each directivity direction is obliquely downward and the passage space is crossed. In this case, the same broadcast reproduction apparatus output is connected to two directional speakers so that the same evacuation guidance broadcast is played.

  In addition, a plurality of directional speakers are arranged together in one place so that each directivity direction is a horizontal direction and a diagonally upward direction below the wall surface, thereby covering the entire cross section of the passage through which the evacuees pass. With this configuration, everyone who passes through the aisle can reliably hear the evacuation guidance broadcast regardless of the posture, such as when evacuating with a low posture to avoid the smoke accumulated on the ceiling. You may do it.

  Such an arrangement of directional speakers makes it possible to hear the evacuation guidance broadcast clearly even when passing through either the center or the left and right positions of the passage. In addition, the directivity direction due to the installation of the directional speaker in the present invention is not limited to the above arrangement as long as it intersects the passage serving as an evacuation route, and can be appropriately arranged.

[Installation on evacuation stairs]
(Evacuation stairs evacuation guidance broadcast and evacuation direction display)
The evacuation guidance system of the present invention may be installed on an evacuation stairs. An evacuation staircase of an office building or the like can go out to the roof, which is an evacuation floor of the building, for example, and an evacuation door serving as an evacuation exit leading to the roof serving as an evacuation floor is installed at a position up the evacuation stairs. The directional speakers 14 are installed at predetermined intervals on the side walls of the evacuation stairs serving as the evacuation route, and the display devices 102 are also arranged at predetermined intervals at high positions on the side walls.

  When a fire occurs, evacuation guidance broadcasting is performed from the directional speaker 14, and the plurality of display devices 102 display a guidance pattern having a movement indicating the evacuation direction by display control. By listening to the evacuation guidance broadcast and viewing the display of the guidance pattern, the refugee can evacuate safely, for example, on the rooftop through the evacuation stairs.

  In addition, for the evacuation stairs leading to the evacuation stairs on the first floor, which is the evacuation floor, the directional speakers 14 are installed at predetermined intervals on the side walls of the evacuation stairs, as in the case where the roof is the evacuation floor, and the side walls are When the display device 102 is arranged at a predetermined interval at a position and a fire breaks out, an evacuation guidance broadcast is performed from the directional speaker 14, and the plurality of display devices 102 have a movement guidance pattern indicating the evacuation direction by display control. Is displayed.

  Furthermore, the evacuation guidance broadcast voice message output from the directional speaker 14 installed on the emergency staircase should always include the word “evacuation floor” so that it can be understood that the refugee has reached the evacuation exit. To.

(Voice content specific to evacuation stairs)
When evacuation guidance broadcasting is performed with the directional speaker 14 provided on the evacuation stairs, the voice used for the message of the adjacent floor changes the main frequency component or the adjacent floor where the vowel has the same pronunciation, Do not output audio indicating either or both floors.

  For example, if “This is the 1st floor, the evacuation floor is the 5th floor” and “This is the 2nd floor, the evacuation floor is the 5th floor”, the vowels of the “1st floor” and “2nd floor” are the “-I” floor. The pronunciation is similar. Therefore, the broadcast portion indicating the floor is, for example, only an even floor, so that the evacuees can clearly hear it. That is, the broadcast content on the second floor (even floor) is “This is the second floor, the evacuation floor is the fifth floor”, and the broadcast content on the first floor (odd floor) is “the evacuation floor is the fifth floor”.

[Cooperation with emergency broadcasting equipment]
FIG. 9 is an explanatory view showing a schematic configuration of another embodiment of the evacuation guidance system according to the present invention, which is characterized in that it is linked with an emergency broadcasting facility.

  In FIG. 9, the evacuation guidance system of the present embodiment is composed of a broadcast control device 10, a broadcast reproduction device 12, a directional speaker 14, a display control device 100, and a plurality of display devices 102, as in the embodiment of FIG. The broadcast control apparatus 10 and the display control apparatus 100 are connected to a receiver of the automatic fire alarm facility 16 through the transmission line 15 to receive a fire signal.

  In addition to this, in the present embodiment, the broadcast control apparatus 10 is connected to the emergency broadcast facility 200 via the transmission path 201 and receives the broadcast signal.

  In the emergency broadcast facility 200, according to the technical standards, when a fire detector issues a report or when information equivalent to this is obtained, a message of a detector notification broadcast is given by a female voice. The content of the alarm notification broadcast message is, for example, “The fire detector on the second floor has been activated. Please check the next broadcast”.

  In addition, according to the technical standards of the emergency broadcast facility 200, a fire broadcast message is given by a male voice when the occurrence of a fire is confirmed or information equivalent thereto is obtained. The content of the fire broadcast message is, for example, “This is a fire. A fire has occurred. A fire has occurred on the second floor. Please calm down and evacuate.” In actual sensor alert broadcasting and fire broadcasting, each message is broadcast in combination with a signal sound and sweep sound.

  Such alarm broadcasts and fire broadcasts by the emergency broadcast facility 200 serve as evacuation routes for each floor of a building that is an evacuation guidance target in which the directional speaker 14 and the display device 102 of the evacuation guidance system of the present invention are arranged. It is also performed on the corridors and stairs, which overlaps with the evacuation guidance broadcast from the directional speaker 14 and may make it difficult to distinguish the evacuation guidance broadcast.

  Therefore, in the present embodiment, for example, when the broadcast control apparatus 10 detects acceptance of a broadcast start operation by the operation unit, the broadcast control apparatus 10 broadcasts a sensor alert broadcast by a female voice message from the emergency broadcast facility 200 through the transmission path 201. If a transfer signal has been received, the broadcast reproduction apparatus 12 is controlled to transmit a control signal including a common address meaning all address designation of the broadcast reproduction apparatus 12, a broadcast start command, and a male voice command designating a male voice message. The male voice data registered in advance is read out, the evacuation guidance broadcast signal is reproduced, and the male voice evacuation guidance broadcast from the directional speaker 14 is output.

In addition, during the evacuation guidance broadcast, the broadcast control device 10 switches the emergency broadcast facility 200 from the detector alarm broadcast to the fire broadcast, and receives a broadcast signal indicating a fire broadcast by a male voice message via the transmission path 201. In this case, control is performed to transmit a control signal including a common address meaning all address designation of the broadcast reproduction device 12, a broadcast start command, and a female voice command designating a female voice message, and the female voice registered in the broadcast reproduction device 12 is controlled in advance. The voice data is read to reproduce the evacuation guidance broadcast signal, and the female evacuation guidance broadcast from the directional speaker 14 is output.

  For this reason, when a sensor alert broadcast by a female voice is performed from the emergency broadcast facility 200, an evacuation guidance broadcast by a male voice is performed from the directional speaker 14, and a fire broadcast by a male voice is performed from the emergency broadcast facility 200. If the evacuation guidance broadcast is made by the female voice from the directional speaker 14, the evacuees can clearly hear the evacuation guidance broadcast from the directional speaker 14. Here, the frequency band of the male voice is around 500 Hz, while the frequency band of the female voice is around 800 Hz, for example, and both can be clearly distinguished in terms of frequency.

[Modification of the present invention]
(Center side device)
In the above embodiment, the broadcast control device and the display control device are provided as separate devices on the center side, but both are provided as one device and have the functions of the guidance broadcast device and the display control device. You may do it.

(2-color display)
In the above-described embodiment, the display color is set to one color by using a white LED as a display lamp of the display device. However, for example, a two-color display in which a white display device and a red display device are combined may be used. In the red display device in this case, the display cover of the indicator lamp may be a translucent colored cover. In the two-color display of the display device, a white display device and a red display device may be alternately arranged, or a red display device may be provided at predetermined intervals to serve as an index indicating distance. In addition, a display device installed within a range of, for example, 10 meters from the evacuation exit may be displayed as a red display device to indicate that it is close to the evacuation exit.

(Guide light)
In addition, if the guide light installed at the evacuation exit is provided with a speaker and the evacuation direction is indicated by voice and flashing light in conjunction with the automatic fire alarm system, the speaker of this guide light is A good speaker may also be used. In this case, a voice message such as “Here is the evacuation exit” is repeatedly output from the directional speaker of the guide light in combination with a signal sound or a sweep sound.

(Evacuation guidance other than fire)
The above embodiment is an example of an evacuation guidance broadcast when a fire occurs, but can be similarly applied to an evacuation guidance broadcast when a disaster such as an earthquake occurs.

(Uses other than buildings)
Further, the evacuation guidance system is not limited to buildings such as buildings and apartment houses, and can be applied to appropriate facilities and places where many people come and go.

(Other)
Evacuation guidance broadcasting and guidance pattern display are performed by evacuation guidance broadcasting only from directional speakers in areas with high priority for evacuation according to the location of the fire and by driving a plurality of display devices arranged there to display guidance patterns. You may make it display and change the district which performs evacuation guidance broadcast and guidance pattern display according to the expansion situation of a fire.

  The drive control method for the display device 102 is not limited to the above embodiment, and a transmission delay signal is set for each display device 102 by transmitting a transmission signal from the display control device 100, and a drive synchronization signal from the display control device 100. May be sent all at once to the display device, and each display device may display the display device with a delay of the drive delay time set by itself, so that evacuation guidance may be performed so as to go to the display evacuation site.

  The present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: Broadcast control apparatus 11 , 15 , 101, 201 : Transmission path 12: Broadcast reproduction apparatus 14, 14-1 to 14-6, 14-11 to 14-46: Directional speaker 16: Automatic fire alarm equipment 18 , 104 : Control unit
19, 108 : Operation unit
20, 110 : Display unit
21: Microphones 22 , 26 , 106 , 112: Communication unit 24: Playback control unit 28: Audio storage unit 30: Playback amplification units 32, 32a, 32b: Escape port 100: Display control devices 102, 102-11 to 102-413 : Display device 114: Display control unit 116: Display drive unit 118: Indicator lamp 200: Emergency broadcast equipment

Claims (8)

A plurality of directional speakers arranged with a directivity direction set in a direction crossing the route on the route to the evacuation site;
A broadcasting device for outputting a predetermined evacuation guidance broadcast from the directional speaker to guide the evacuation site when a fire occurs;
A plurality of display devices arranged along a route to the evacuation site;
A display control device that controls the plurality of display devices so as to display a predetermined guidance pattern having a movement indicating a direction of the evacuation site when a fire occurs;
With
The directional speaker propagates the evacuation guidance broadcast to a limited range in a direction crossing the route, and outputs the evacuation guidance broadcast at a volume that can be clearly heard only when the refugee crosses the range. Evacuation guidance system.
The evacuation guidance system according to claim 1, wherein the directional speaker is a plane wave speaker that outputs acoustic vibration as a plane wave.
The evacuation guidance system according to claim 1, wherein the broadcasting device repeatedly outputs an evacuation guidance broadcast indicating a distance from the directional speaker to the evacuation site.
4. The evacuation guidance system according to claim 3, wherein the broadcasting device outputs an evacuation guidance broadcast indicating a distance from the directional speaker installed in the hallway portion to the evacuation site including words of an evacuation exit or an stairs. And the evacuation guidance system which outputs the evacuation guidance broadcast which shows the distance to the said evacuation place containing the word of an evacuation floor from the said directional speaker installed in the emergency staircase is output.
The evacuation guidance system according to claim 1, wherein the broadcasting device is:
Provided for each directional speaker, stores predetermined evacuation guidance broadcast information corresponding to the installation location of the directional speaker, and performs reproduction output and stop reproduction of the stored evacuation guidance broadcast information by an external control signal A broadcast playback device;
A broadcast control device that communicates and controls the broadcast playback device;
An evacuation guidance system characterized by comprising:
2. The evacuation guidance system according to claim 1, wherein the display control device repeats control of blinking sequentially toward the direction of the evacuation place in a state where the plurality of display devices are turned on all at once, and is directed toward the evacuation direction. An evacuation guidance system that displays a guidance pattern in which a dark spot appears to travel in the evacuation direction in a state where a light line with continuous light spots is displayed.
2. The evacuation guidance system according to claim 1, wherein the display device includes an indicator lamp, and when the indicator lamp is lit, after lighting and driving for a predetermined time with a predetermined light emission amount, a flash is output. An evacuation guidance system characterized by maintaining a low predetermined light intensity lighting drive.
2. The evacuation guidance system according to claim 1, wherein when the broadcast device receives a broadcast message indicating a sensor alert broadcast by a female voice message from an emergency broadcast facility, the evacuation by a male voice message from the directional speaker. An evacuation guidance system that outputs a guidance broadcast and outputs the evacuation guidance broadcast by a female voice message from the directional speaker when a broadcast message indicating a fire broadcast by a male voice message is received from the emergency broadcast equipment .

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