JP2018073227A - Evacuation guidance system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform suitable evacuation guidance broadcast in accordance with a disaster occurrence place and a broadcast hearing place.SOLUTION: An evacuation guidance system includes: a plurality of fire sensors 20 that are installed in object facilities A to output a sensing signal; a fire receiver 21 for receiving the sensing signal to output an audible signal; a plurality of speakers 30 installed in the object facilities A; and a broadcast controller 31 for controlling evacuation guidance broadcast by the speakers 30. An inside of the object facilities A is partitioned into a plurality of emergency broadcasting areas 33a to 33g. In the emergency broadcasting areas 33a to 33g, one or two or more speakers 30 are installed. The fire receiver 21 outputs the audible signal including fire occurrence place information. The broadcast controller 31 determines an evacuation guidance message output from the speakers 30 for each of the emergency broadcasting areas 33a to 33g based on the fire occurrence place information.SELECTED DRAWING: Figure 10

Description

  The present invention relates to an evacuation guidance system, and more particularly, to an improvement of an evacuation guidance system that outputs an evacuation guidance message from a speaker when a disaster such as a fire occurs.

  In general, large-scale facilities such as office buildings, large retail stores, and theaters are equipped with an evacuation guidance system that performs evacuation guidance broadcasting when a disaster such as a fire occurs. For example, as an example of a conventional evacuation guidance system, there is one that includes a fire notification unit that detects the occurrence of a fire and outputs an alarm signal, and an emergency broadcast unit that performs an evacuation guidance broadcast based on the alarm signal is there.

  The fire alarm unit includes a plurality of fire detectors installed in the target facility and a fire receiving device to which these fire detectors are connected. The fire detector outputs a detection signal when it detects a fire. The fire receiving device outputs an alarm signal based on this detection signal.

  The emergency broadcast unit includes a plurality of speakers installed in the target facility and a broadcast control device to which these speakers are connected. The broadcast control device drives and controls the speaker based on a notification signal from the fire receiving device, and performs evacuation guidance broadcasting.

  Evacuation guidance broadcasting is performed by outputting an evacuation guidance message from a speaker. Such evacuation guidance by voice output has the advantage that it is not affected by haze and can be used by visually impaired persons, compared to visual evacuation guidance using indicator lights such as guide lights.

  The conventional evacuation guidance system outputs a uniform evacuation guidance message from all speakers, for example, a voice message such as “It is a fire” or “Please escape from OO”. For this reason, where the disaster occurred in the target facility (disaster occurrence location), how the disaster spreads secondarily (disaster situation), where is listening to the evacuation guidance broadcast There was a problem that appropriate evacuation guidance could not be performed according to (broadcast listening place).

JP 2005-236737 A JP-A-7-182590

  The present invention has been made in view of the above circumstances, and an object thereof is to perform an appropriate evacuation guidance broadcast according to a disaster occurrence place and a broadcast listening place. In addition, the purpose is to conduct appropriate evacuation guidance broadcasting considering the disaster situation. Furthermore, it aims at performing appropriate evacuation guidance broadcasting according to the evacuation route for every listener.

  An evacuation guidance system according to a first embodiment of the present invention includes a plurality of disaster detectors that are installed in a target facility and that output a detection signal, and a disaster reception device that receives the detection signal and outputs a notification signal. A plurality of speakers installed in the target facility, and a broadcast control device that controls evacuation guidance broadcasting by the speakers, and the interior of the target facility is divided into a plurality of emergency broadcast areas, 1 or 2 or more speakers are installed, the disaster receiving device outputs a warning signal including disaster occurrence location information, and the broadcast control device outputs the speaker based on the disaster occurrence location information An evacuation guidance message is determined for each emergency broadcast area.

  By adopting such a configuration, it is possible to generate an evacuation guidance message corresponding to the disaster occurrence location and the emergency broadcast area for each emergency broadcast area. Accordingly, when a disaster occurs, an evacuation guidance message according to the disaster occurrence location and the broadcast listening location can be output.

  In the evacuation guidance system according to the second embodiment of the present invention, in addition to the above-described configuration, the broadcast control device has a message table in which the evacuation guidance message for each emergency broadcast area is associated with the disaster occurrence location in advance. Table storage means for storing, and message generation means for generating the evacuation guidance message for each emergency broadcast area with reference to the data table.

  By using the message table, it is possible to generate an evacuation guidance message for each emergency broadcast area according to the disaster occurrence location and the emergency broadcast area without performing complicated processing. Also, since the correspondence relationship between the output condition of the evacuation guidance message and the output content is clear, it is possible to suppress an erroneous evacuation guidance message from being output due to a human error.

  In the evacuation guidance system according to the third embodiment of the present invention, in addition to the above configuration, when the broadcast control device receives the alert signal, one or more disaster occurrence location information and the emergency broadcast area are included. An evacuation route determination means for obtaining an evacuation route for each emergency broadcast area based on one or more evacuation exit information of the floor to which the floor belongs, and an evacuation guidance message for each emergency broadcast area based on the evacuation route Message generating means for generating.

  By adopting such a configuration, an evacuation guidance message corresponding to the evacuation route can be generated. In particular, the optimum evacuation route is determined even when it is difficult to determine the optimum evacuation route in advance, such as when there are two or more disaster occurrence places or there are two or more evacuation exits. be able to.

  In the evacuation guidance system according to the fourth embodiment of the present invention, in addition to the above-described configuration, the broadcast control apparatus generates a content indicating the evacuation route determined by the evacuation route determination unit, and outputs the content to the speaker. Broadcast signal generating means for generating a signal in which the content is superimposed on the evacuation guidance message with a voice watermark as the broadcast signal.

  By adopting such a configuration, when a disaster occurs, the mobile communication terminal can acquire content indicating an evacuation route from the emergency broadcast area to which the mobile communication terminal belongs. Thereby, the refugee can evacuate more reliably not only through the evacuation guidance message broadcast from the speaker but also through the content output from the mobile communication terminal owned by the refugee.

  In the evacuation guidance system according to the fifth embodiment of the present invention, in addition to the above-described configuration, the broadcast control device generates a content indicating the evacuation route determined by the evacuation route determination unit, and outputs the content to the speaker. Broadcast signal generating means for generating, as a broadcast signal, a signal in which access information for accessing the content via the network is superimposed on the evacuation guidance message by an audio watermark.

  ADVANTAGE OF THE INVENTION According to this invention, the appropriate evacuation guidance broadcast according to a disaster occurrence place and a broadcast listening place can be performed. In addition, appropriate evacuation guidance broadcasting can be performed in consideration of the disaster situation. Furthermore, appropriate evacuation guidance broadcasting according to the evacuation route for each listener can be performed.

It is the figure which showed an example of the basic composition of the evacuation guidance system by Embodiment 1 of this invention. It is the figure which showed an example of the detailed structure of the broadcast control apparatus 31 of FIG. It is the figure which showed an example of the layout of the fire alarm unit 2 in the target facility A. It is the figure which showed an example of the layout of the emergency broadcast unit 3 in the target facility A. It is the figure which showed the other example of the layout of the emergency broadcast unit 3 in the target facility A. It is the figure which showed the other example of the layout of the fire alarm unit 2 in the target facility A. It is the figure which showed the other example of the layout of the emergency broadcast unit 3 in the target facility A. It is the figure which showed an example of the detailed structure of the broadcast control apparatus 31 by Embodiment 2 of this invention. It is the figure which showed an example of the evacuation route when a fire broke out on another floor. It is the figure which showed an example of the evacuation route when a fire broke out on the same floor. It is the figure which showed the example of 1 structure of the evacuation guidance system 101 by Embodiment 3 of this invention. It is the figure which showed one structural example of the evacuation guidance system 102 by Embodiment 4 of this invention. It is the figure which showed an example of the detailed structure of the broadcast control apparatus 31 of FIG. It is the figure which showed the other structural example of the evacuation guidance system 102 by Embodiment 4 of this invention. It is the figure which showed an example of the detailed structure of the broadcast control apparatus 31 of FIG.

Embodiment 1 FIG.
FIG. 1 is a diagram showing an example of a basic configuration of an evacuation guidance system according to Embodiment 1 of the present invention. The evacuation guidance system 100 is a system that is installed in an indoor space of a large-scale facility such as a building or a theater and broadcasts evacuation guidance when a fire occurs as an example of a disaster.

<Evacuation guidance system 100>
The evacuation guidance system 100 includes a fire notification unit 2 that outputs a notification signal when a fire occurs, and an emergency broadcast unit 3 that outputs an evacuation guidance message based on the notification signal. Both the fire alarm unit 2 and the emergency broadcast unit 3 are installed in the target facility. In this specification, a facility where a fire is detected by the evacuation guidance system 100 and evacuation guidance broadcasting is performed is referred to as a target facility.

<Fire alarm unit 2>
The fire alarm unit 2 includes a plurality of fire detectors 20 distributed in the indoor space of the target facility, and a fire receiving device 21 installed in the disaster prevention management room of the target facility. All of these fire detectors 20 are connected to a fire receiving device 21, and a detection signal output from each fire detector 20 is received by the fire receiving device 21.

  The fire detector 20 is a sensor that detects the occurrence of a fire and outputs a detection signal. The indoor space of the target facility is divided into a plurality of fire detection areas in advance, and one or more fire detectors 20 are installed for each fire detection area. As the fire detector 20, for example, a thermal sensor, a smoke sensor, or the like can be used. A camera and an image analysis device can also be used as the fire detector 20. For example, it is possible to detect the occurrence of a fire by analyzing a photographed image by a camera and recognizing flames and smoke in the photographed image.

  When the fire receiving device 21 receives a detection signal from the fire detector 20, the fire receiving device 21 outputs a notification signal. At this time, the fire detection area where the occurrence of the fire is detected is specified as the fire occurrence place, and a notification signal including the fire occurrence place information is generated. Each fire detector 20 is assigned an address in advance as unique identification information, and when a fire is detected, a detection signal including this address is output. Therefore, the fire receiving device 21 can identify the fire detector 20 that is the output source of the sensing signal by extracting the address from the received sensing signal. Therefore, the fire detection area to which the fire detector 20 belongs is specified as a fire occurrence place.

<Emergency broadcast unit 3>
The emergency broadcast unit 3 includes a plurality of speakers 30 distributed in an indoor space of the target facility, and a broadcast control device 31 installed in the disaster prevention management room of the target facility. These speakers 30 are all connected to the broadcast control device 31. When a fire occurs, an evacuation guidance message is output from each speaker 30. The evacuation guidance message differs depending on the location of the fire even if the same speaker 30 is used. Even if the fire occurrence place is the same, if the speaker 30 is different, the evacuation guidance message is also different. That is, an evacuation guidance message is output according to the fire occurrence location and the viewing location.

  The speaker 30 is an audio output device that receives a broadcast signal from the broadcast control device 31 and outputs an evacuation guidance message designated by the broadcast control device 31. The indoor space of the target facility is divided into a plurality of emergency broadcast areas in advance, and one or more speakers 30 are installed in each emergency broadcast area. Broadcast signals correspond to emergency broadcast areas. For this reason, when two or more speakers are arranged in the same emergency broadcast area, these speakers 30 output an evacuation guidance message based on the same broadcast signal. That is, two or more speakers 30 belonging to the same emergency broadcast area always output the same message regardless of the location of the fire.

  When the broadcast control device 31 receives the notification signal from the fire receiving device 21, the broadcast control device 31 controls the speaker 30 to perform evacuation guidance broadcasting. At this time, an evacuation guidance message is determined for each emergency broadcast area based on the location of the fire occurrence, and a broadcast signal including the evacuation guidance message of the emergency broadcast area to which each belongs is output to each speaker 30. Therefore, when a fire occurs, the same message is not output from all the speakers 30, but a different message can be output for each emergency broadcast area. That is, from the viewpoint of the listener of the evacuation guidance broadcast, it is possible to listen to the evacuation guidance message according to the fire occurrence location and the listening position.

<Detailed Configuration Example of Broadcast Control Device 31>
FIG. 2 is a diagram showing an example of a detailed configuration of the broadcast control device 31 of FIG. The broadcast control device 31 includes a notification signal receiving unit 310, a fire occurrence location specifying unit 311, a message generating unit 312, a table storage unit 313, and a broadcast signal output unit 314.

  The alert signal receiver 310 is a receiver circuit that receives an alert signal from the fire receiving device 21. The fire occurrence location identifying unit 311 extracts the fire occurrence location information from the notification signal and identifies the fire occurrence location.

  The message generator 312 generates an evacuation guidance message for each emergency broadcast area based on the location of the fire. The message is generated using the data table of the evacuation guidance message.

  The table storage unit 313 is a storage unit that holds a message table in which an evacuation guidance message for each emergency broadcast area is associated with a fire occurrence location. For example, a data table in which an evacuation guidance message is associated with a fire occurrence place is held for each emergency broadcast area. That is, one evacuation guidance message is associated in advance with a combination of a fire occurrence location and an emergency broadcast area. The message generation unit 312 acquires an evacuation guidance message for each emergency broadcast area by designating a fire occurrence location and referring to the table storage unit 313.

  The broadcast signal output unit 314 generates a broadcast signal including the evacuation guidance message generated by the message generation unit 312 and outputs the broadcast signal to the speaker 30. Since the evacuation guidance message is generated for each emergency broadcast area, a broadcast signal is also generated for each emergency broadcast area and output to the speaker 30 of the corresponding emergency broadcast area.

  By using such a message table, it is possible to generate an evacuation guidance message corresponding to a fire occurrence place and an emergency broadcast area for each emergency broadcast area without performing complicated processing. In addition, since the correspondence between the output condition of the evacuation guidance message and the output content is clear, it is possible to suppress an erroneous evacuation guidance message from being output due to a human error.

  Note that the message table held by the table storage unit 313 not only associates an evacuation guidance message for each emergency broadcast area with one fire occurrence location, but also provides a combination of two or more fire occurrence locations. It is desirable to associate an evacuation guidance message for each broadcast area. In this case, a more appropriate evacuation guidance message can be output when two or more notification signals are received. In an actual fire, the smoke from the source of the fire spreads around and the range of fire spread also spreads around. For this reason, the broadcast control apparatus 31 receives two or more notification signals almost simultaneously or with time. For this reason, by using a message table in which an evacuation guidance message is associated with a combination of two or more fire occurrence locations, a highly accurate evacuation guidance message can be generated even when the disaster situation changes after the occurrence of a fire. it can.

<Layout example 1>
FIG. 3 is a diagram showing an example of the layout of the fire alarm unit 2 in the target facility A. This target facility A is a building having a plurality of floors, and each floor is divided into fire detection areas 23a to 23c. In addition, when a fire occurs, the fire reception device 21 identifies one of the floors as a fire occurrence location, and outputs a notification signal including floor information (floor information).

  The target facility A is composed of three floors from the first floor to the third floor, and three fire detectors 20 are installed on each floor. Each fire detector 20 is connected to the fire receiving device 21 via the common wiring 22, but the fire receiving device 21 that has received the sensing signal outputs the output source based on the address included in the sensing signal. The fire detector 20 can be identified. Further, the fire receiving device 21 stores each fire detector 20 in association with the floor, and can specify the floor where the fire has occurred based on the address of the detection signal. A notification signal including the floor information specified in this way is output to the emergency broadcast unit 3.

  FIG. 4 is a diagram showing an example of the layout of the emergency broadcast unit 3 in the target facility A. This target facility A is the same as the target facility A in FIG. 2, and the fire alarm unit 2 in FIG. 3 is also installed, but is omitted for convenience of explanation. This target facility is divided so that each floor becomes an emergency broadcast area 33a to 33c. That is, the emergency broadcast areas 33a to 33c coincide with the fire detection areas 23a to 23c.

  Three speakers 30 are installed on each floor. These speakers 30 are connected to different channels of the broadcast control device 31 using wiring systems 32 a to 32 c for each floor. For this reason, the broadcast control apparatus 31 can broadcast a different evacuation guidance message for each floor by outputting a different broadcast signal for each channel. That is, the wires 32 a to 32 c that connect the speaker 30 and the broadcast control device 31 to each other are separated for each emergency broadcast area 33 a to 33 c and connected to different channels of the broadcast control device 31. For this reason, each speaker 30 can receive a broadcast signal corresponding to the emergency broadcast areas 33 a to 33 c from the broadcast control device 31.

<Layout example 2>
FIG. 5 is a diagram showing another example of the layout of the emergency broadcast unit 3 in the target facility A. Compared with the case of FIG. 4, all the speakers 30 are different in that they are connected to the broadcast control device 31 via the common wiring 32.

  An address is assigned to each speaker 30 in advance. This address consists of unique identification information for each speaker 30 or emergency broadcast areas 33a to 33c, and the broadcast control device 31 generates a broadcast signal destined for the address, while each speaker 30 is assigned to itself. Only broadcast signals destined for the specified address are received. For this reason, even if all the speakers 30 are connected to the broadcast control device 31 via the common wiring 32, a broadcast signal corresponding to the emergency broadcast areas 33a to 33c can be transmitted to each speaker 30.

<Operation in case of fire>
An example of operation when a fire occurs in the target facility A shown in FIGS. 3 to 5 will be described. When a fire occurs on the second floor, the fire detector 20 near the fire occurrence location outputs a detection signal, and the fire receiving device 21 receives the detection signal. The fire receiving device 21 determines that the fire occurrence place is the second floor based on the address in the sensing signal, and outputs a notification signal including the floor information.

  In this example, the broadcast control device 31 associates the evacuation guidance message for each floor as the emergency broadcast areas 33a to 33d with each floor as the fire detection areas 23a to 23c in the table storage unit 313. The broadcast control device 31 that has received the notification signal generates an evacuation guidance message for each floor based on the floor information of the fire occurrence location, generates a broadcast signal including the evacuation guidance message for each floor, and sends it to the speaker 30. Output. The speaker 30 that has received this broadcast signal outputs the evacuation guidance message in the broadcast signal by voice.

  For example, on the first floor, “Evacuate from the emergency exit.” On the second floor, “Use the emergency stairs to go down to the first floor and evacuate from the emergency exit.” On the third floor, “ Please evacuate to the rooftop ”message is output from the speaker 30 on each floor.

  After that, when the fire spreads to the first floor, a detection signal is also output from the fire detector 20 on the first floor, and a fire alarm signal is output from the fire receiving device 21 to the first floor. Is done. For this reason, the broadcast control apparatus 31 determines that the first floor and the second floor are the places where the fire has occurred, and generates an evacuation guidance message different from the previous one.

  For example, the same evacuation guidance message as before is output on the first floor and the third floor, while the evacuation guidance message “Please evacuate to the rooftop” is output on the second floor.

  In this way, instead of outputting a uniform message from each speaker, an optimal message is output according to the location of the fire and the location where the broadcast is listened to. It can be performed.

<Layout example 3>
6 and 7 are diagrams showing another example of the installation mode of the evacuation guidance system 100 in the target facility A. FIG. FIG. 6 shows another example of the layout of the fire alarm unit 2, and FIG. 7 shows another example of the layout of the emergency broadcast unit 3.

  In FIG. 3, each floor forms fire detection areas 23 a to 23 c, whereas in FIG. 6, one floor is divided into five small areas, and each small area is fire detection areas 23 a to 23 e, respectively. Is forming. Similarly, in FIGS. 4 and 5, each floor forms emergency broadcast areas 33a to 33c, whereas in FIG. 7, one floor is divided into four small areas. Emergency broadcast areas 33a to 33d are formed respectively. 6 and 7 show only one floor, the other floors are also divided into small areas as necessary, and each small area forms a fire detection area and an emergency broadcast area.

  In this way, by dividing the floor into small areas and making the areas of the fire detection area and the emergency broadcast area smaller, more appropriate evacuation guidance can be performed. In this example, the broadcast control device 31 associates the evacuation guidance message for each emergency broadcast area 33a to 33d with each fire detection area 23a to 23e in the table storage unit 313.

  For example, when a fire occurs in the fire detection area 23b in the floor, the fire detector 20 near the fire occurrence location outputs a detection signal, and the fire receiving device 21 receives the detection signal. The fire receiving device 21 determines that the fire occurrence location is the fire detection area 23b based on the address in the detection signal, and outputs a notification signal including fire occurrence location information indicating the fire detection area 23b.

  The broadcast control device 31 that has received the notification signal generates an evacuation guidance message for each emergency broadcast area 33a to 33d based on the fire occurrence location information indicating the fire detection area 23b, and generates a broadcast signal including the evacuation guidance message. Generated for each of the emergency broadcast areas 33 a to 33 d and output to the speaker 30.

  For example, in the emergency broadcast area 33a on the floor, an evacuation guidance message such as “Please evacuate from the exit”, and in the emergency broadcast areas 33b to 33d, “Evacuate from the △△ exit.” It is output from the speaker 30 of each emergency broadcast area 33a-33d.

  Thereafter, when the fire spreads to the fire detection area 23c, a detection signal is also output from the fire detector 20 in the fire detection area 23c, and the fire receiving device 21 reports that the fire detection area 23c is a fire occurrence place. A signal is also output. Therefore, the broadcast control device 31 determines that the fire detection area 23b and the fire detection area 23c are places where a fire has occurred, and generates an evacuation guidance message different from the previous one.

  In this way, instead of outputting a uniform message from each speaker, an optimal message is output according to the location of the fire and the location where the broadcast is listened to. It can be performed.

Embodiment 2. FIG.
In the first embodiment, an example in which an evacuation guidance message is generated using a message table has been described. In contrast, in the present embodiment, a case will be described in which an evacuation guidance message is generated by automatically calculating an evacuation route.

  FIG. 8 is a diagram showing a configuration example of a main part of the evacuation guidance system according to Embodiment 2 of the present invention, and an example of a detailed configuration of the broadcast control device 31 is shown. Compared with the case of FIG. 2, the table storage unit 313 is not provided, but an evacuation route determination unit 315 and a facility map storage unit 316 are provided.

  The broadcast control device 31 includes a notification signal receiving unit 310, a fire occurrence location specifying unit 311, a message generating unit 312, a broadcast signal output unit 314, an evacuation route determination unit 315, and a facility map storage unit 316.

  The evacuation route determination unit 315 automatically determines an evacuation route for each emergency broadcast area when a fire occurs. The evacuation route is determined for each emergency broadcast area based on one or more fire occurrence locations and one or more evacuation exit information of the floor to which the emergency broadcast area belongs.

  The facility map storage unit 316 holds a facility map that is map information of the target facility. This facility map includes all emergency broadcast areas and evacuation exit information indicating the positions of evacuation exits on each floor. Therefore, when one or more notification signals are received, the evacuation route determination unit 315 can determine an evacuation route for each emergency broadcast area by referring to the facility map.

  For example, in the case of an emergency broadcast area in a fire occurrence floor, an evacuation exit in the same floor is specified as an evacuation route. First, one or two or more fire occurrence locations are compared with one or more evacuation exits, and evacuation exits that can be used for evacuation from the emergency broadcast area of interest are extracted. As a result, when only one evacuation port is extracted, the evacuation port is specified as an evacuation route. When two or more evacuation ports are extracted, the nearest evacuation port is specified as an evacuation route.

  The message generator 312 generates an evacuation guidance message based on the evacuation route determined by the evacuation route determination unit 315. The generation of the evacuation guidance message may be a process of selecting from a plurality of message candidates given in advance, or a process of generating a message by speech synthesis. For example, a message indicating that the user should evacuate from the evacuation exit identified by the evacuation route determination unit 315 is generated, such as “Please evacuate from OO”.

  9 and 10 are diagrams showing an example of an evacuation route in the floor. FIG. 9 shows an example of an evacuation route when a fire occurs on another floor, and FIG. 10 shows the same evacuation route. An example of an evacuation route when a fire occurs on the floor is shown.

  On this floor, seven speakers 30a-30g are installed, and the inside of the floor is divided into seven emergency broadcast areas 33a-33g in advance so that each speaker 30a-30g corresponds to the emergency broadcast areas 33a-33g. . The emergency broadcast area 33a is a corridor that leads to two staircases. The emergency broadcast areas 33b to 33g are areas obtained by dividing the indoor space partitioned from the corridor through partitions into six. Two doors 35 and 36 are provided in the partition, and these doors 35 and 36 serve as evacuation exits for the floor.

  The nearest evacuation exit is the door 35 for the emergency broadcast areas 33b and 33e, the door 35 or the door 36 for the emergency broadcast areas 33c and 33f, and the door 36 for the emergency broadcast areas 33d and 33g. . For this reason, when the place where the fire occurred is on another floor, a message that evacuates from each of these doors is output in each emergency broadcast area 33b to 33g. That is, the evacuation route from the emergency broadcast areas 33b to 33g is as shown in FIG. 9, and the speakers 30b and 30e output a message “Please evacuate from the door 35.” The speakers 30c and 33f The message “Please evacuate from the door 35 or 36” is output, and the speakers 30d and 30g output the message “Please evacuate from the door 36.”

  On the other hand, when the fire occurrence location is on the same floor, an evacuation route is determined according to the fire occurrence location, and a message corresponding to the evacuation route is output. For example, as shown in FIG. 10, when the fire occurrence place is near the boundary between the emergency broadcast areas 33b and 33e, the escape route from the emergency broadcast areas 33b, 33c, and 33f is used to evacuate while avoiding the fire occurrence place. Is changed to the door 36. That is, the evacuation route from the emergency broadcast areas 33b to 33g is as shown in FIG. 10, and the speaker 30e outputs a message “Please evacuate from the door 35.” and the speakers 30b to 30d, 30f, and 30g. Outputs a message “Please evacuate from door 36”.

  By adopting such a configuration, an evacuation guidance message corresponding to the evacuation route can be generated. In particular, the optimum evacuation route is determined even when it is difficult to determine the optimum evacuation route in advance, such as when there are two or more fires or there are two or more evacuation exits. be able to.

Embodiment 3 FIG.
In the above embodiment, the evacuation guidance system 100 that identifies the location of the fire occurrence based on the notification signal of the fire alarm unit 2 has been described. In contrast, in the present embodiment, an evacuation guidance system 101 that further uses the video of the camera monitoring unit 4 to specify the location of the fire occurrence will be described.

  FIG. 11 is a diagram showing a configuration example of the evacuation guidance system 101 according to Embodiment 3 of the present invention. The evacuation guidance system 101 includes a fire alarm unit 2, an emergency broadcast unit 3, and a camera monitoring unit 4. The camera monitoring unit 4 includes a plurality of cameras 40 that constantly shoot the inside of the target facility, and a monitoring control device 41 that receives captured images from these cameras 40.

  The broadcast control device 31 acquires a captured image near the fire occurrence location from the monitoring control device 41 when a fire occurs, and specifies the fire occurrence location more accurately. The fire occurrence location identifying unit 311 (see FIG. 2 or FIG. 8) in the broadcast control device 31 identifies the fire occurrence location based on the notification signal, and then transmits the camera image near the fire occurrence location to the monitoring control device 41. Request. Once the camera video is acquired, image analysis is performed to identify the location of the fire in more detail. For example, by detecting a flame in a camera image, a fire occurrence location can be specified more accurately.

Embodiment 4 FIG.
In the above embodiment, the evacuation guidance systems 100 and 101 in which the speaker 30 outputs an evacuation guidance message have been described. In contrast, in the present embodiment, in addition to this, an evacuation guidance system 102 that provides content indicating an evacuation route to the mobile communication terminal 5 will be described.

  FIG. 12 is a diagram showing a configuration example of the evacuation guidance system 102 according to Embodiment 4 of the present invention. In the evacuation guidance system 102, the speaker 30 outputs an evacuation guidance message to the corresponding emergency broadcast area 33 and outputs content indicating the evacuation route to the mobile communication terminal 5 in the emergency broadcast area 33. The content is composed of character information or image information corresponding to the evacuation guidance message, and is displayed on the screen of the mobile communication terminal 5 or is output as audio. For example, if the corresponding evacuation guidance message is “Please evacuate from the emergency exit”, the text information content can be translated into Japanese text or translated into any language. Any text can be used. For example, if the corresponding evacuation guidance message is “Please evacuate from the emergency exit”, the content of the image information is the facility map that is the map information of the target facility A and is included in the message Any facility map image may be used as long as (exit) is highlighted. The highlight display may be any display that draws the viewer's attention, such as blinking display or display with decorative characters.

  FIG. 13 is a diagram showing an example of a detailed configuration of the broadcast control device 31 of FIG. The broadcast control device 31 includes a notification signal receiving unit 310, a fire occurrence location specifying unit 311, a message generating unit 312, a broadcast signal output unit 314, an evacuation route determining unit 315, a facility map storage unit 316, a content generating unit 317, and an audio. The watermark superimposing unit 318 is configured. Compared with the case of FIG. 8, the content generation unit 317 and the audio watermark superimposing unit 318 are different.

  The content generation unit 317 generates content corresponding to the evacuation route for each emergency broadcast area based on the evacuation route for each emergency broadcast area specified by the evacuation route determination unit 315. The audio watermark superimposing unit 318 superimposes the content of the corresponding evacuation route on each evacuation guidance message with the audio watermark to generate a broadcast signal.

  Audio watermarking is a technology for transmitting data from a speaker to a microphone at the same time that audio is output from a speaker. By superimposing a modulation signal of data on a frequency region higher than the band used for outputting audio of a message, the message is transmitted. Data transmission is performed along with output. That is, the modulation signal of the content is superimposed on an audible area or a non-audible area that is a frequency band that can be output by the speaker 30 and that can be received by the mobile communication terminal 5 and that is higher than the band used by the message output. I am letting. For this reason, listening to the voice message by the listener and receiving of the content by the mobile communication terminal 5 can be performed simultaneously.

  By superimposing the content of the evacuation route with the audio watermark on the evacuation guidance message, the content for each emergency broadcast area can be transmitted to the mobile communication terminal 5 in the emergency broadcast area. For this reason, appropriate evacuation guidance can be performed. Each speaker 30 includes an audio watermark superimposing unit 318, and each speaker 30 can perform superimposition processing.

  FIG. 14 is a diagram showing another configuration example of the evacuation guidance system 102 according to Embodiment 4 of the present invention. In this evacuation guidance system 102, the speaker 30 outputs an evacuation guidance message to the corresponding emergency broadcast area 33, and the mobile communication terminal 5 in the emergency broadcast area 33 has access information to the content indicating the evacuation route, For example, a URI (Uniform Resource Identifier) and a URL (Uniform Resource Locator) are output. The content is acquired via a wireless communication network 60 such as a LAN or the Internet, and is displayed on the screen of the mobile communication terminal 5.

  FIG. 15 is a diagram illustrating an example of a detailed configuration of the broadcast control device 31 of FIG. The broadcast control device 31 includes a notification signal receiving unit 310, a fire occurrence location specifying unit 311, a message generating unit 312, a broadcast signal output unit 314, an evacuation route determining unit 315, a facility map storage unit 316, a content generating unit 317, an audio A watermark superimposing unit 318 and a network output unit 319 are included. Compared to the case of FIG. 13, the difference is that a network output unit 319 is provided.

  The network output unit 319 transmits the content of the evacuation route for each emergency broadcast area generated by the content generation unit 317 to the content server 61. In addition, each access information (URI) that is associated with each content on a one-to-one basis and obtains the corresponding content from the content server 61 via the network is generated and output to the audio watermark superimposing unit 318. Thereby, the content server 61 holds the content corresponding to each evacuation route for each received emergency broadcast area.

  The audio watermark superimposing unit 318 superimposes access information to the corresponding content with the audio watermark on the evacuation guidance message to generate a broadcast signal.

  The mobile communication terminal 5 in the emergency broadcast area receives the speaker output with a microphone and extracts access information from the received signal. The mobile communication terminal 5 that has acquired the access information performs wireless communication with the cellular base station 62 and the LAN access point, accesses the content server 61 via the network, and acquires content. Specifically, for example, the mobile communication terminal 5 transmits access information to the content server 61 by an HTTP (Hyper Text Transfer Protocol) request, and receives content corresponding to the access information from the content server 61 as a response to the HTTP request. And get it. The content acquired in this way is displayed on the screen of the mobile communication terminal 5 or outputted as audio.

  By superimposing the access information to the content of the evacuation route with the audio watermark on the evacuation guidance message, the mobile communication terminal 5 in the emergency broadcast area can acquire the content for each emergency broadcast area via the network 60. be able to. For this reason, appropriate evacuation guidance can be performed. This can be realized by superimposing access information having a data amount smaller than that of the content by the audio watermark, and is particularly effective when the content data amount is large.

  15 and FIG. 16, an example in which the content server 61 is a device different from the broadcast control device 31 has been described. However, the content server 61 may be built in the broadcast control device 31.

  In the first to fourth embodiments, the evacuation guidance broadcasting system is described as an example of a disaster when a fire occurs. However, the present invention is not limited to this, and a sensor corresponding to an arbitrary disaster is provided to detect any disaster. It can be set as the system which performs evacuation guidance broadcast when it occurs. For example, it is also possible to provide a gas sensor that detects a gas leak instead of the fire sensor 20 and construct a system that performs evacuation guidance broadcasting when a gas leak occurs.

100 to 102 Evacuation Guidance System 2 Fire Notification Unit 20 Fire Detector 21 Fire Receiver 22 Common Wiring 23a to 23e Fire Detection Area 3 Emergency Broadcast Unit 30 Speaker 31 Broadcast Controller 310 Alert Signal Receiving Unit 311 Fire Occurrence Location Identification Unit 312 Message generation unit 313 Table storage unit 314 Broadcast signal output unit 315 Evacuation route determination unit 316 Facility map storage unit 317 Content generation unit 318 Audio watermark superimposition unit 319 Network output unit 32, 32a to 32c Wiring 33, 33a to 33g Emergency broadcast area 35 , 36 Door 4 Camera monitoring unit 40 Camera 41 Monitoring and control device 5 Mobile communication terminal 60 Network 61 Content server 62 Cellular base station

Claims (5)

A plurality of disaster detectors installed in the target facility and outputting detection signals;
A disaster receiving device that receives the sensing signal and outputs a notification signal;
A plurality of speakers installed in the target facility;
A broadcast control device for controlling the evacuation guidance broadcast by the speaker;
The inside of the target facility is divided into a plurality of emergency broadcast areas, and one or more speakers are installed in the emergency broadcast area,
The disaster receiver outputs a warning signal including disaster occurrence location information,
The broadcast control apparatus determines an evacuation guidance message output by the speaker for each emergency broadcast area based on the disaster occurrence location information. The broadcast control device stores a message table in which the evacuation guidance message for each emergency broadcast area is associated with the disaster occurrence location in advance.
2. The evacuation guidance system according to claim 1, further comprising message generation means for generating the evacuation guidance message for each emergency broadcast area with reference to the data table. When the broadcast control device receives the alert signal, the emergency broadcast area is based on one or more disaster location information and one or more evacuation exit information of the floor to which the emergency broadcast area belongs. Evacuation route determination means for obtaining an evacuation route for each,
The evacuation guidance system according to claim 1, further comprising message generation means for generating the evacuation guidance message for each emergency broadcast area based on the evacuation route. The broadcast control device generates a content indicating the evacuation route determined by the evacuation route determination unit;
The evacuation guidance system according to claim 3, further comprising broadcast signal generation means for generating a signal in which the content is superimposed on the evacuation guidance message with an audio watermark as the broadcast signal output to the speaker. . The broadcast control device generates a content indicating the evacuation route determined by the evacuation route determination unit;
Broadcast signal generating means for generating, as a broadcast signal to be output to the speaker, a signal in which access information for accessing the content via a network is superimposed on the evacuation guidance message by an audio watermark. The evacuation guidance system according to claim 3.

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