JP7634956B2 - Evacuation Guidance System - Google Patents

Description

The present invention relates to an evacuation guidance system.

Conventionally, when it comes to evacuation guidance in the event of a disaster, evacuation guidance has mainly been provided by evacuation guidance lights installed at emergency exits (see, for example, Patent Document 1).

JP2009-300359

However, in any facility, including large facilities where an unspecified number of people are present, even if people in the building are made aware of a fire through emergency broadcasts or other means, it may be difficult for them to evacuate safely if they are not able to see the evacuation guide lights from their location.

The present invention was made in consideration of the above problems, and aims to provide an evacuation guidance system that enables safe evacuation.

In order to solve the above-mentioned problems and achieve the object, the evacuation guidance system described in claim 1 comprises a display board device having a display board provided facing the progression direction of a passageway, and a control device that performs control to display progression possible information indicating that progression is possible on one side of the display board, and to display progression impossible information indicating that progression is impossible on the other side of the display board, based on a fire occurrence signal received from a fire alarm system , wherein the display board is a transparent board, and the display board device has one side first recess and one side second recess provided on the one side of the display board, the other side first recess and the other side second recess provided on the other side of the display board, and a control device that performs control to display one side of the display board, a one-surface-side first illumination unit that projects light onto a second side surface of one surface side facing the first side surface of the one surface side, a one-surface-side second illumination unit that is disposed on the second side surface of the one surface side and projects light onto the first side surface of the one surface side, an other-surface-side first illumination unit that is disposed on the first side surface of the other surface side and projects light onto a second side surface of the other surface side facing the first side surface of the other surface side, and an other-surface-side second illumination unit that is disposed on the second side surface of the other surface side and projects light onto the first side surface of the other surface side, and the first recess of the one surface reflects a part of the light projected from the one-surface-side first illumination unit onto the one surface side, thereby performing a display on the one surface according to the shape of the first recess, thereby displaying the progress possible information on the one surface, the second recess on one surface reflects a portion of the light projected from the one surface side second illumination unit toward the one surface side, thereby providing a display corresponding to the shape of the second recess on the one surface, the first recess on the other surface reflects a portion of the light projected from the other surface side first illumination unit toward the other surface side, thereby providing a display corresponding to the shape of the first recess on the other surface, and the second recess on the other surface reflects a portion of the light projected from the other surface side second illumination unit toward the other surface side, thereby providing a display corresponding to the shape of the second recess on the other surface, When travelling to one side of the display board is possible, light is projected from the one side first lighting section and light is not projected from the one side second lighting section; when travelling to one side of the display board is impossible, light is not projected from the one side first lighting section and light is projected from the one side second lighting section; when travelling to the other side of the display board is possible, light is projected from the other side first lighting section and light is not projected from the other side second lighting section; and when travelling to the other side of the display board is impossible, light is not projected from the other side first lighting section and light is projected from the other side second lighting section.

Furthermore, the evacuation guidance system described in claim 2 is characterized in that, in the evacuation guidance system described in claim 1 , the first recess on the one surface is configured so that the point at which the transparent plate contacts the outside of the transparent plate in the first recess on the one surface approaches the first side surface on the one surface as it moves from the one surface to the other surface.

According to the evacuation guidance system described in claim 1, by displaying information indicating that progress can be made on one side of a display board provided facing the direction of progress along the passageway and information indicating that progress cannot be made on the other side of the display board, for example, the display board can be made conspicuous, and the information indicating that progress can be made and information indicating that progress cannot be made can be used to inform people of whether progress can be made or not, enabling safe evacuation.

1 is a diagram showing a building to which a disaster prevention system according to an embodiment of the present invention is applied; FIG. 2 is a front view showing an installation state of the evacuation guidance display device. This is a cross-sectional view taken along line AA in FIG. FIG. 2 is a block diagram showing the functions of the disaster prevention display device. FIG. 11 is a diagram illustrating an example of facility information. FIG. 2 is a block diagram showing functions of the evacuation guidance display device. FIG. 2 is a front view of the evacuation guidance display device in a state in which progress information is displayed. FIG. 11 is a front view of the evacuation guidance display device when impossible-to-proceed information is displayed. This is a cross-sectional view taken along line B-B of FIG. This is a cross-sectional view taken along the line CC of FIG. 13 is a flowchart of an evacuation guidance process. FIG. 1 is a diagram showing a building to which a disaster prevention system is applied. FIG. 1 is a diagram showing a building to which a disaster prevention system is applied. FIG. 1 is a diagram showing a building to which a disaster prevention system is applied. FIG. 2 is a cross-sectional view of the evacuation guidance display device.

Below, an embodiment of the evacuation guidance system according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to this embodiment.

[Basic Concept of the Embodiment]
First, a basic concept of the present embodiment will be described. The present embodiment generally relates to an evacuation guidance system.

An "evacuation guidance system" is a system for guiding evacuees, specifically, a system for guiding people to evacuate in the event of any disaster, including a fire or earthquake, and includes, for example, a display board device and a control device.

A "display board device" is a device equipped with a display board that is provided facing the direction of travel of a passageway, and may, for example, optionally include a light shielding plate, a first recess, a first illumination unit, a second recess, and a second illumination unit.

The phrase "installed facing the direction of travel of the passage" refers to a concept corresponding to installation so as to be visible to people passing along the passage, and as an example, a concept corresponding to installation of a signboard along a direction intersecting the passage (e.g., perpendicular to the passage). The phrase "installed facing the direction of travel of the passage" refers to a concept corresponding to installation of a signboard so that people passing along the passage in a first direction toward the signboard can see one side of the signboard, and people passing along the passage in a second direction (opposite to the first direction) toward the signboard can see the other side of the signboard (the side opposite to the one side).

The term "display board" refers to a concept that includes, for example, a transparent board (i.e., a transparent plate-like object) or a board of any color other than a transparent board. The term "display board" also refers to a concept that includes, for example, a board that has a first display board and a second display board that are arranged along the thickness direction of the display board. The term "display board" also refers to a concept that includes, for example, a board that is not composed of a first display board and a second display board that are arranged along the thickness direction of the display board, but is composed of a single board in the thickness direction.

When a display board is constructed using a first display board and a second display board, for example, a light blocking plate, which is an element of the display board device, may or may not be provided between the first display board and the second display board. A "light blocking plate" is a plate that blocks light between the first display board and the second display board, and is a concept that includes, for example, a plate that blocks all light or a plate that blocks only part of the light.

The first recess, the first lighting unit, the second recess, and the second lighting unit are provided, for example, on one side and the other side of the display board. The "first recess" is, for example, a recess for displaying progress possible information. The "first lighting unit" is, for example, a lighting means for projecting light into the first recess to display progress possible information. For example, the "second recess" is, for example, a recess for displaying progress impossible information. Also, the "second lighting unit" is, for example, a lighting means for projecting light into the second recess to display progress impossible information.

The color of the light projected by the first lighting unit and the color of the light projected by the second lighting unit may be the same color or different colors.

The "control device" refers to a control means that performs control to display, on one side of the display board, information indicating that progress is possible, and to display, on the other side of the display board, information indicating that progress is not possible, based on a fire occurrence signal received from the fire alarm system.

"Proceeding information" is, for example, information indicating that it is possible to proceed safely when a fire occurs, and is a concept that includes, for example, information for guiding evacuators to move away from the source of the fire. "Proceeding information that is not possible" is, for example, information indicating that it is not possible to proceed safely when a fire occurs, and is a concept that includes, for example, information for preventing evacuators from moving closer to the source of the fire (i.e., information for discouraging evacuators from moving closer to the source of the fire). Note that the format of this "proceeding information" and "proceeding information that is not possible" is arbitrary as long as it complies with the above definition, and is a concept that includes, for example, text format, image format, or symbol format (i.e., arrow mark or "X" mark). The display colors of these pieces of information are arbitrary, and may be different colors from each other, or may be the same color from each other.

The "control device" may be realized, for example, by a disaster prevention receiver or a disaster prevention display device, or may be realized by implementing the function of a control device in any device other than these devices (for example, a personal computer or a server computer, etc.). Note that a "disaster prevention receiver" is, for example, a device that manages a monitored area, and is a concept that includes, for example, devices that perform disaster prevention such as fire prevention. A "disaster prevention display device" is a device that displays the status of a monitored area. A "monitored area" is an area that is the subject of monitoring, and is a concept that includes, for example, any area inside a building or any area outside a building, etc.

A "fire alarm system" is equipment for reporting the occurrence of a fire, and is a concept that includes, for example, sensors and transmitters. A "detector" is equipment that detects and reports the occurrence of a fire in a monitored area, and is a concept that includes, for example, equipment that detects fires based on smoke or heat. A "transmitter" is equipment that reports a fire in a monitored area, and is a concept that includes, for example, a device equipped with a push button that reports the occurrence of a fire when pressed.

A "fire occurrence signal" is a signal indicating that a fire has occurred, and is a concept that includes, for example, a signal transmitted from the fire alarm equipment to the control device.

In the embodiment described below, the "monitoring area" is the interior area of a building, and the "control device" is implemented using a disaster prevention display device.

[Specific Contents of the Embodiment]
Next, the specific contents of the embodiment will be described.

(composition)
First, the configuration of the disaster prevention system according to the present embodiment will be described. Fig. 1 is a diagram showing a building to which the disaster prevention system according to the present embodiment is applied, Fig. 2 is a front view showing the installation state of the evacuation guidance display device, and Fig. 3 is a cross-sectional view taken along the line A-A in Fig. 2.

In addition, hatching of the cross section has been omitted in the cross section (this is also the case in other cross sections). In addition, the disaster prevention receiver 1 and the disaster prevention display device 2 in FIG. 1 are actually installed in any section of the building (e.g., a disaster prevention room, etc.), and the communication line L1 is actually installed inside the building, but in FIG. 1, at least a part of it is shown outside the building for ease of explanation.

The X-Y-Z directions shown in Figures 1 to 3 are mutually orthogonal directions. Specifically, the X direction is the horizontal direction, the +X direction is referred to as the east side (the other side), the -X direction is referred to as the west side (one side), the Y direction is the horizontal direction, the Z direction is the vertical direction, the +Z direction is referred to as the upper side, and the -Z direction is referred to as the lower side.

The disaster prevention system 100 in FIG. 1 is an evacuation guidance system, specifically a system for disaster prevention in the building in FIG. 1, and is applied to the building. The building is, for example, a three-story commercial facility, and as shown in FIG. 1, emergency stairs are provided on the east side (+X direction) and west side (-X direction) for use in evacuation in the event of a fire. Note that, unless specifically shown in FIG. 1, an emergency exit for evacuating to the outside of the building is provided at the location of the emergency stairs on the first floor of the building.

The disaster prevention system 100 in FIG. 1 includes, for example, a disaster prevention receiver 1, a disaster prevention display device 2, a sensor 3, and an evacuation guidance display device 4. Note that, although multiple sensors 3 and evacuation guidance display devices 4 in FIG. 1 are provided on each floor, only representative ones are shown.

(Configuration - Disaster Prevention Receiver)
1 is a device that performs various processes related to disaster prevention when it receives a fire occurrence signal from a detector 3, and is capable of communicating with various devices (the detector 3, the evacuation guidance display device 4, the disaster prevention display device 2, etc.) via a communication line L1, for example. The specific configuration of this disaster prevention receiver 1 is arbitrary, and a known configuration can be applied, so detailed description will be omitted.

(Configuration - Disaster prevention display device)
4 is a block diagram showing the functions of the disaster prevention display device. The disaster prevention display device 2 in FIG. 1 is the above-mentioned control device, and is capable of communicating with various devices (sensors 3, evacuation guidance display device 4, disaster prevention receiver 1, etc.) via a communication line L1. The disaster prevention display device 2 is also capable of directly communicating with the evacuation guidance display device 4 via the communication line L1 without going through the disaster prevention receiver 1. The disaster prevention display device 2 also has known functions such as a function for displaying various information related to disaster prevention (for example, information indicating the location of a fire, or information related to fire extinguishing equipment, etc.), but here, the description of the known functions will be omitted as appropriate, and the functions related to the features of the present application will be described.

As shown in FIG. 4, the disaster prevention display device 2 includes, for example, a communication unit 21, a display unit 22, an operation unit 23, a recording unit 24, and a control unit 25.

(Configuration - Disaster Prevention Display Device - Communication Department)
4 is a communication unit that communicates with an external device (i.e., each device included in the disaster prevention system 100). The specific type and configuration of the communication unit 21 are arbitrary, but it can be configured, for example, using a known communication circuit (the same applies to the communication units of other devices).

(Configuration - Disaster prevention display device - Display section)
The display unit 22 in Fig. 4 is a display means for displaying various information. The specific type and configuration of the display unit 22 are arbitrary, but it can be configured using a display such as a known liquid crystal display or an organic EL display, for example.

(Configuration - Disaster prevention display device - Operation section)
The operation unit 23 in Fig. 4 is an operation means for inputting various information. The specific type and configuration of the operation unit 23 are arbitrary, but for example, it can be configured using known operation buttons, etc. Note that the operation unit 23 may be configured using a touch pad, a keyboard, a mouse, etc. instead of or in addition to the operation buttons.

(Configuration - Disaster prevention display device - Recording section)
4 is a recording means for recording programs and various data necessary for the operation of the disaster prevention display device 2, and is configured using, for example, a flash memory or a hard disk. However, instead of or together with the flash memory or hard disk, any other recording medium including a magnetic recording medium such as a magnetic disk, or an optical recording medium such as a DVD or a Blu-ray disk can be used (the same applies to the recording units of other devices).

The recording unit 24 stores, for example, map information and facility information.

(Configuration - Disaster prevention display device - Recording section - Map information)
"Map information" is, for example, information that identifies a plan view of the interior of a building to which the disaster prevention system 100 is applied as a map, such as a plan view of each floor (i.e., a plan view that allows identification of the relative positions of each section (corridors, rooms, emergency stairs, etc.) on each floor). The specific method of storing such map information is arbitrary, but for example, when map information is input to the disaster prevention display device 2 using any method (e.g., a method of inputting information using a recording medium such as a memory stick, or a method in which the administrator sends and inputs information from his/her own terminal), the control unit 25 stores the map information (the same applies to facility information, which will be described later).

(Configuration - Disaster prevention display device - Recording section - Equipment information)
"Facility information" is information that identifies each piece of equipment, which is each device included in the disaster prevention system 100. Fig. 5 is a diagram illustrating an example of facility information. As shown in Fig. 5, for example, this facility information is mutually associated with information corresponding to the item "facility ID," information corresponding to the item "facility type information," and information corresponding to the item "installation location information."

The information corresponding to the item "Facility ID" is facility identification information (identification information is also referred to as "ID") for uniquely identifying each facility. This facility ID is arbitrary, but for example, it is assumed that a facility ID is set for each of the detector 3 and the evacuation guidance display device 4, and this facility ID is recorded. In FIG. 5, for example, "ID311" to "ID316" that uniquely identify the detectors 311 to 316 in FIG. 1, and "ID411" to "ID413" that uniquely identify the evacuation guidance display devices 411 to 413 in FIG. 1 are stored. The information corresponding to the item "Facility type information" is facility type information that specifies the type of facility (in FIG. 5, it is "detector" that specifies the type of detector 3, and "evacuation guidance display device" that specifies the type of evacuation guidance display device 4).

The information corresponding to the item "Installation location information" is installation location information that specifies the location where each piece of equipment is installed. This installation location information is arbitrary, but for example, in FIG. 5, a case will be described in which information is stored that specifies the floor on which each piece of equipment is installed, each section, and its location within the section. For example, the evacuation guidance display device 411 is installed near the center of the first passage (see FIG. 2 and FIG. 3) that runs along the east-west direction (X direction) on the first floor of the building in FIG. 1, the detector 311 is installed on the west side (-X direction) of the first passage, and the detector 312 is installed on the east side (+X direction) of the first passage (similar to the second and third floors of the building). In particular, this first passage (similar to the second and third floors of the building) is assumed to lead to the emergency stairs on the west side (-X direction) and the emergency stairs on the east side (+X direction) shown in FIG. 1. In this case, the installation location information stored includes "1F, west side of first aisle" which specifies the location of the detector 311 on the first floor and on the west side of the first aisle, and "1F, center of first aisle" which specifies the location of the detector 411 on the first floor and near the center of the first aisle.

The information at the top of this equipment information (the combination of "ID311," "detector," and "1F, west side of first aisle") indicates that the type of detector 311 identified by "equipment ID" = "ID311" is a "detector" indicated by the "equipment type information," and that the location where detector 311 is installed is "1F, west side of first aisle" indicated by the "installation location information" (i.e., the west side of the first aisle on the first floor of the building).

(Configuration - Disaster prevention display device - Control unit)
The control unit 25 in Fig. 4 is also a control means for controlling the disaster prevention display device 2, and is specifically a computer including a CPU, various programs interpreted and executed on the CPU (including basic control programs such as an OS and application programs that are started on the OS and realize specific functions), and an internal memory such as a RAM for storing programs and various data (the same applies to the control units of other devices). In particular, the control program according to the embodiment is installed in the disaster prevention display device 2 via an arbitrary recording medium or a network, thereby substantially configuring each unit of the control unit 25 (the same applies to the control units of other devices). The processing performed by the control unit 25 will be described later.

(Configuration - Sensor)
The detector 3 in FIG. 1 is a device that detects and notifies the occurrence of a fire in the section in which it is installed, and is installed in each section on each floor, and includes, for example, detectors 311 to 316. The specific type and configuration of the detector 3 are arbitrary, but for example, the detector 3 includes a communication section, a recording section, and a control section, which are not shown. The recording section of the detector 3 stores an equipment ID for uniquely identifying the detector, and in particular, the recording sections of the detectors 311 to 316 store "ID311" to "ID316" as equipment IDs. When the control section of the detector 3 detects the occurrence of a fire using a known method (for example, a method of detecting based on smoke density), the control section of the detector 3 generates a fire occurrence signal including the equipment ID stored in the recording section of the detector 3, and transmits the generated fire occurrence signal to the disaster prevention receiver 1 to notify the occurrence of a fire.

(Configuration - Evacuation guidance display device)
FIG. 6 is a block diagram showing the function of the evacuation guidance display device, FIG. 7 is a front view of the evacuation guidance display device in a state where the progress possible information is displayed, FIG. 8 is a front view of the evacuation guidance display device in a state where the progress impossible information is displayed, FIG. 9 is a B-B cross-sectional view of FIG. 7, and FIG. 10 is a C-C cross-sectional view of FIG. 7. Note that FIG. 7 and FIG. 8 show the evacuation guidance display device 4 in a state where it is viewed from the +X direction toward the -X direction of FIG. 1. In addition, with regard to FIG. 9 and FIG. 10, the shape, size, and number of each recess are actually adjusted arbitrarily so as to realize each function (function to display each information) described later, but here, they are illustrated for convenience in order to explain the principle of the function. In addition, in FIG. 9 and FIG. 10, the light output from each lighting unit is illustrated by a dashed arrow. Also, FIG. 9(a) and FIG. 9(b) show the same configuration, and the lighting units outputting light are illustrated in different states.

The evacuation guidance display device 4 in FIG. 1 is the above-mentioned display board device, and is provided on each floor, and includes, for example, evacuation guidance display devices 411 to 413. The installation method of this evacuation guidance display device 4 is arbitrary as long as it is provided facing the direction of travel of the passageway, but for example, as shown in FIG. 2 and FIG. 3, a case will be described in which it is provided on the upper side (+Z direction) of each passageway and installed on a hanging wall 900 by any method (for example, a method using mounting brackets or a method of screwing, etc.).

The "hanging wall" 900 is, for example, a transparent plate-like member for preventing smoke, and is provided facing the travel direction of each passageway. In this way, since the hanging wall 900 is transparent, even if the evacuation guidance display device 4 is installed on the hanging wall 900 as shown in Figures 2 and 3, the evacuation guidance display device 4 can be viewed from both one side (+X direction) and the other side (-X direction). In particular, from one side (+X direction), it is possible to directly view one side (+X direction) of the evacuation guidance display device 4, and from the other side (-X direction), it is possible to view the other side (-X direction) of the evacuation guidance display device 4 through the transparent hanging wall 900.

The evacuation guidance display device 4 includes, for example, a communication unit 41, a recording unit 42, a control unit 43, a light guide plate 5, and an illumination unit 6, as shown in FIG. 6 and FIG. 7 to FIG. 10.

(Configuration - Evacuation guidance display device - Communication department)
The communication unit 41 in FIG. 6 is a communication unit that communicates with external devices (that is, each device included in the disaster prevention system 100).

(Configuration - Evacuation Guidance Display Device - Recording Unit)
The recording unit 42 in Figure 6 is a recording means for recording programs and various data necessary for the operation of the evacuation guidance display device 4, and stores an equipment ID for uniquely identifying the device itself. In particular, the recording units 42 of the evacuation guidance display devices 411 to 413 store "ID411" to "ID413" as equipment IDs.

(Configuration - Evacuation Guidance Display Device - Control Unit)
6 is a control means for controlling the evacuation guidance display device 4. The process performed by the control unit 43 will be described later.

(Configuration - Evacuation guidance display device - Light guide plate)
The light guide plate 5 in Fig. 7 to Fig. 10 is the above-mentioned display plate, and specifically, is provided facing the traveling direction of the passage. As shown in Fig. 7 and Fig. 8, the light guide plate 5 selectively displays the proceeding possible information 401, the proceeding impossible information 402, or the fire occurrence information 403, and more specifically, selectively displays each of the above-mentioned information on both the surface of one side (+X direction) of the light guide plate 5 (specifically shown in Fig. 7 and Fig. 8) and the surface of the other side (-X direction) of the light guide plate 5 (specifically not shown).

The "Proceeding possible information" 401 is the proceeding possible information mentioned above, for example, information for guiding evacuees to move away from the fire source, such as an arrow mark (Fig. 7) to encourage movement toward the evacuation guidance display device 4. The "Proceeding impossible information" 402 is the proceeding impossible information mentioned above, for example, information for preventing evacuees from moving toward the fire source, such as an "X" mark (Fig. 8) to discourage movement toward the evacuation guidance display device 4. The "Fire outbreak information" 403 is information for reporting that a fire has broken out in the building, such as a flame mark and the text information "Fire FIRE" (Figs. 7 and 8).

The light guide plate 5 in Figs. 7 to 10 is, for example, illuminated with light output from the illumination unit 6, and displays the above-mentioned information based on the illuminated light. As shown in Figs. 9 and 10, it has a predetermined thickness, and as shown in Figs. 7 and 8, it is a rectangular plate-like plate that is transparent overall and is made of any material such as resin or glass. The light guide plate 5 is provided with, for example, a recess 50 as shown in Figs. 9 and 10.

(Configuration - Evacuation guidance display device - Light guide plate - Recess)
The recess 50 is a depression for reflecting the light output from the illumination unit 6 and incident on the light guide plate 5 to one side (+X direction) and the other side (-X direction) of the light guide plate 5, thereby displaying the above-mentioned information on one side (+X direction) and the other side (-X direction) of the light guide plate 5, and has a reflective surface that reflects light from a predetermined illumination unit 6 among the illumination units 6. As shown in Figures 9 and 10, the recess 50 includes, for example, a one-side first recess 51, a one-side second recess 52, a one-side third recess 53, a other-side first recess 54, a other-side second recess 55, and a other-side third recess 56.

The first recess 51 (Fig. 9), the second recess 52 (Fig. 9), and the third recess 53 (Fig. 10) on one side are for reflecting the light incident on the light guide plate 5 to one side (+X direction) of the light guide plate 5, thereby displaying the above-mentioned information on the surface on one side (+X direction) of the light guide plate 5. The first recess 51 on one side is for displaying the progress possible information 401 by reflecting the light from the first lighting unit 61 on one side, as shown in Fig. 9(a), for example. The second recess 52 on one side is for displaying the progress impossible information 402 by reflecting the light from the second lighting unit 62 on one side, as shown in Fig. 9(b), for example. The third recess 53 on one side is for displaying the fire occurrence information 403 by reflecting the light from the third lighting unit 63 on one side, as shown in Fig. 10, for example.

The other-side first recess 54 (FIG. 9), other-side second recess 55 (FIG. 9), and other-side third recess 56 (FIG. 10) are for reflecting the light incident on the light guide plate 5 to the other side (-X direction) of the light guide plate 5, thereby displaying the above-mentioned information on the surface of the other side (-X direction) of the light guide plate 5. The other-side first recess 54 is for displaying the progress possible information 401 by reflecting the light from the other-side first lighting unit 64, for example, as shown in FIG. 9(b). The other-side second recess 55 is for displaying the progress impossible information 402 by reflecting the light from the other-side second lighting unit 65, for example, as shown in FIG. 9(a). The other-side third recess 56 is for displaying the fire occurrence information 403 by reflecting the light from the other-side third lighting unit 66, for example, as shown in FIG. 10.

(Configuration - Evacuation guidance display device - Lighting section)
7 to 10 is an illumination means for projecting light onto the recess 50 of the light guide plate 5 to display the above-mentioned information. The illumination section 6 includes, for example, a one-side first illumination section 61, a one-side second illumination section 62, a one-side third illumination section 63, a other-side first illumination section 64, a other-side second illumination section 65, and a other-side third illumination section 66.

The one-side first lighting section 61, the one-side second lighting section 62, and the one-side third lighting section 63 are one-side lighting means that output light to display the aforementioned information on one side (+X direction) of the light guide plate 5, and the other-side first lighting section 64, the other-side second lighting section 65, and the other-side third lighting section 66 are other-side lighting means that output light to display the aforementioned information on the other side (-X direction) of the light guide plate 5.

The one-side first illumination unit 61 and the other-side first illumination unit 64 are the first illumination units described above, and are provided along the +Y side edge of the light guide plate 5, as shown in FIG. 7 and FIG. 8, for example, with a plurality of light sources that output blue light toward the -Y side provided along the Z direction. In detail, the one-side first illumination unit 61 is for displaying blue progress possible information 401 on the surface of the light guide plate 5 on one side (+X direction) by projecting blue light onto the one-side first recess 51, as shown in FIG. 9(a), for example. The other-side first illumination unit 64 is for displaying blue progress possible information 401 on the surface of the light guide plate 5 on the other side (-X direction) by projecting blue light onto the other-side first recess 54, as shown in FIG. 9(b), for example.

The one-side second illumination unit 62 and the other-side second illumination unit 65 are the second illumination units described above, and are provided along the -Y side edge of the light guide plate 5, as shown in FIG. 7 and FIG. 8, for example, with a plurality of light sources that output red light toward the +Y side provided along the Z direction. In detail, the one-side second illumination unit 62 is for displaying the no-go information 402 in red on the surface of the light guide plate 5 on one side (+X direction) by projecting red light onto the one-side second recess 52, as shown in FIG. 9(b), for example. The other-side second illumination unit 65 is for displaying the no-go information 402 in red on the surface of the light guide plate 5 on the other side (-X direction) by projecting red light onto the other-side second recess 55, as shown in FIG. 9(a), for example.

The one-side third illumination section 63 and the other-side third illumination section 66 are provided along the -Z side edge of the light guide plate 5, as shown in Figs. 7 and 8, for example, and a plurality of (plural) light sources that output red light toward the +Z side are provided along the Y direction. In detail, the one-side third illumination section 63 is for displaying red fire outbreak information 403 on one side (+X direction) surface of the light guide plate 5 by projecting red light onto the one-side third recess 53, as shown in Fig. 10, for example. The other-side third illumination section 66 is for displaying red fire outbreak information 403 on the other side (-X direction) surface of the light guide plate 5 by projecting red light onto the other-side third recess 56, as shown in Fig. 10, for example.

(process)
Next, the evacuation guidance process among the disaster prevention processes executed by the disaster prevention system 100 configured as above will be described. FIG. 11 is a flowchart of the evacuation guidance process (in the following description of each process, steps are abbreviated as "S"), and FIG. 12 is a diagram showing a building to which the disaster prevention system is applied. The "evacuation guidance process" is, in outline, a process executed by the disaster prevention display device 2, and is, for example, a process for guiding evacuation when a fire occurs. The timing of executing this evacuation guidance process is arbitrary, but for example, when each device of the disaster prevention system 100 is powered on, repeated execution is started, and the description will begin from the point where the execution of the evacuation guidance process starts. As shown in FIG. 12, a case where a fire occurs on the west side of the first passage on the first floor of a building will be described as an example.

In SA1 of FIG. 11, the control unit 25 of the disaster prevention display device 2 determines whether or not a fire has occurred. Although the specific details are arbitrary, for example, the configuration is such that when the detector 3 detects a fire, it transmits a fire occurrence signal including an equipment ID that identifies the detector 3 itself to the disaster prevention receiver 1, and when the disaster prevention receiver 1 receives the fire occurrence signal, it transmits fire occurrence information (information indicating that a fire has occurred) including the equipment ID included in the fire occurrence signal to the disaster prevention display device 2. If the control unit 25 of the disaster prevention display device 2 has not received fire occurrence information, it determines that a fire has not occurred (NO in SA1) and repeatedly executes SA1 until it determines that a fire has occurred. If the control unit 25 has received fire occurrence information, it determines that a fire has occurred (YES in SA1) and moves to SA2.

The processing here may be changed as desired. For example, the control unit 25 of the disaster prevention display device 2 may be configured to directly receive a fire occurrence signal from the detector 3, and then perform processing of SA1 based on whether or not the fire occurrence signal has been received.

For example, as shown in FIG. 12, if a fire breaks out on the west side of the first corridor on the first floor of a building, the detector 311 detects the fire and transmits a fire occurrence signal including its own facility ID "ID311" to the disaster prevention receiver 1, and when the disaster prevention receiver 1 receives the fire occurrence signal, it transmits fire occurrence information including "ID311" contained in the signal to the disaster prevention display device 2. In this case, the control unit 25 of the disaster prevention display device 2 receives the fire occurrence information including "facility ID" = "ID311" and determines that a fire has occurred (YES in SA1).

In SA2 of FIG. 11, the control unit 25 of the disaster prevention display device 2 specifies information to be displayed on the evacuation guidance display device 4 of FIG. 12. FIG. 13 is a diagram showing a building to which the disaster prevention system is applied. Although specific details are arbitrary, for example, the device acquires an equipment ID included in the fire occurrence information received in SA1, and by referring to the equipment information of FIG. 5 and the map information of the recording unit 24 of FIG. 4, identifies the location of the fire in the building based on the acquired equipment ID, identifies an evacuation route that allows people in the building to safely evacuate based on the identified location of the fire, and specifies information to be displayed on the evacuation guidance display device 4 based on the identified evacuation route.

Here, for example, the "equipment ID" = "ID311" included in the fire occurrence information received by SA1 is acquired, and the "installation location information" = "1F, west side of the first passage" associated with the above-mentioned "equipment ID" = "ID311" is identified by referring to the equipment information in FIG. 5, and the map information in the recording unit 24 in FIG. 4 is referred to to identify the west side of the first passage on the first floor of the building indicated by the identified "installation location information = "1F, west side of the first passage" as the fire occurrence location. Next, based on the identified fire occurrence location, for example, an arbitrary method (for example, a method for identifying an evacuation route that allows people in a building to safely evacuate by referring to map information, such as a method for identifying an evacuation route that moves in a direction away from the fire source and toward an emergency staircase or emergency exit) is used to identify the evacuation route R1 (i.e., an evacuation route that evacuates from the west side (-X direction) to the east side (+X direction) on each floor) indicated by the arrow in FIG. 13, and information to be displayed on the evacuation guidance display device 4 is identified based on the identified evacuation route R.

In addition, as a method of identifying information to be displayed on the evacuation guidance display device 4 based on the evacuation route R, for example, a set of information of progress possible information 401 and fire outbreak information 403 shown in FIG. 7 (hereinafter also referred to as "progress possible set information"), or a set of information of progress impossible information 402 and fire outbreak information 403 shown in FIG. 8 (hereinafter also referred to as "progress impossible set information") is identified. For example, "progress possible set information" is identified as information to be displayed on one of the faces on one side or the other side of one evacuation guidance display device 4, and "progress impossible set information" is identified as information to be displayed on the other face (i.e., the face opposite to the face identified as the face displaying "progress possible set information").

In detail, for example, "progress possible set information" is specified as information to be displayed on one or the other of the faces of the evacuation guidance display device 4 that is visible when the evacuation guidance display device 4 is viewed facing the direction of travel of the aforementioned specified evacuation route (in the case of evacuation route R in FIG. 13, the direction from the west side (-X direction) to the east side (+X direction)), while "progress impossible set information" is specified as information to be displayed on the opposite face of the one or the other of the faces of the evacuation guidance display device 4 (that is, the face that is visible when the evacuation guidance display device 4 is viewed facing the opposite direction to the direction of travel of the aforementioned specified evacuation route (in the case of evacuation route R in FIG. 13, the direction from the west side (-X direction) to the east side (+X direction))).

Here, for example, "progress possible set information" is specified as the information to be displayed on the other side (-X direction) of the evacuation guidance display devices 411-413, and "progress impossible set information" is specified as the information to be displayed on one side (+X direction) of the evacuation guidance display devices 411-413.

In SA3 of FIG. 11, the control unit 25 of the disaster prevention display device 2 performs processing to display information on the evacuation guidance display device 4. FIG. 14 is a diagram showing a building to which the disaster prevention system is applied. Although specific details are arbitrary, for example, an information display signal corresponding to the processing result of SA2 is generated, and the generated information display signal is transmitted to each evacuation guidance display device 4, thereby displaying the information identified in SA2 on the evacuation guidance display device 4. The "information display signal" is a signal for identifying the information to be displayed on each surface of each evacuation guidance display device 4, and is, for example, a signal including a facility ID that identifies the evacuation guidance display device 4 to be displayed, one-side display information indicating the information to be displayed on one surface of the evacuation guidance display device 4, and other-side display information indicating the information to be displayed on the other surface of the evacuation guidance display device 4.

For example, in the case of the evacuation guidance display device 411, in SA2, "progress possible set information" is identified as the information to be displayed on the other side (-X direction), and "progress impossible set information" is identified as the information to be displayed on the one side (+X direction), so an information display signal (hereinafter also referred to as the "first information display signal") including "facility ID" = "ID411", "one side display information" = "progress impossible set information", and "other side display information" = "progress possible set information" is generated and transmitted to the evacuation guidance display device 4. Similarly, for evacuation guidance display devices 412-413, an information display signal (hereinafter also referred to as a "second information display signal") containing "facility ID" = "ID412", "one side display information" = "progress impossible set information", and "other side display information" = "progress possible set information" is generated and transmitted, and an information display signal (hereinafter also referred to as a "third information display signal") containing "facility ID" = "ID413", "one side display information" = "progress impossible set information", and "other side display information" = "progress possible set information" is generated and transmitted.

Meanwhile, the control unit 43 of the evacuation guidance display device 4 receives the information display signal transmitted from the disaster prevention display device 2, acquires the equipment ID contained in the received information display signal, and if the acquired equipment ID matches the equipment ID recorded in the recording unit 42, determines that the signal is for displaying information intended for the device itself, acquires the "one-side display information" and "other-side display information" contained in the information display signal, and displays each piece of information based on the acquired information. Note that if the equipment IDs do not match each other, the signal is not for displaying information intended for the device itself, and no control is performed.

Regarding the process of displaying each piece of information, when the acquired "one-side display information" is "progress impossible set information" (i.e., when the acquired "other-side display information" is "progress possible set information"), the control unit 43 of the evacuation guidance display device 4 outputs light from the one-side second lighting unit 62 and the other-side first lighting unit 64 as shown in FIG. 9(b), and outputs light from the one-side third lighting unit 63 and the other-side third lighting unit 66 as shown in FIG. 10, thereby displaying "progress impossible set information" (i.e., progress impossible information 402 and fire outbreak information 403 shown in FIG. 8) on one side (+X direction) of the light guide plate 5 of the evacuation guidance display device 4, and also displays "progress possible set information" (i.e., progress possible information 401 and fire outbreak information 403 shown in FIG. 7) on the other side (-X direction) of the light guide plate 5 of the evacuation guidance display device 4.

On the other hand, when the acquired "one-side display information" is "progress possible set information" (i.e., when the acquired "other-side display information" is "progress impossible set information"), the control unit 43 of the evacuation guidance display device 4 outputs light from the one-side first lighting unit 61 and the other-side second lighting unit 65 as shown in FIG. 9(a), and outputs light from the one-side third lighting unit 63 and the other-side third lighting unit 66 as shown in FIG. 10, thereby displaying the "progress possible set information" (i.e., the progress possible information 401 and the fire outbreak information 403 shown in FIG. 7) on one side (+X direction) of the light guide plate 5 of the evacuation guidance display device 4, and also displays the "progress impossible set information" (i.e., the progress impossible information 402 and the fire outbreak information 403 shown in FIG. 8) on the other side (-X direction) of the light guide plate 5 of the evacuation guidance display device 4.

Here, for example, when the control unit 43 of the evacuation guidance display device 411 receives the "first information display signal", it displays "progress impossible set information" on one side (+X direction) of the light guide plate 5 of the evacuation guidance display device 4, and displays "progress possible set information" on the other side (-X direction) of the light guide plate 5 of the evacuation guidance display device 4. Similarly, the control units 43 of the evacuation guidance display devices 412-413 also display "progress impossible set information" on one side (+X direction) of the light guide plate 5 of the evacuation guidance display device 4, and displays "progress possible set information" on the other side (-X direction) of the light guide plate 5 of the evacuation guidance display device 4. In this way, as shown in FIG. 14, the "progress impossible set information" (FIG. 8) is displayed on one side (+X direction) of each evacuation guidance display device 4, and the "progress possible set information" (FIG. 7) is displayed on the other side (-X direction), so that people in the building can be safely evacuated along the evacuation route R in FIG. 13. This ends the evacuation guidance process.

(Effects of the embodiment)
In this manner, according to this embodiment, by displaying progress possible information 401 on one side of the light guide plate 5 provided facing the travel direction of the passage (e.g., the first passage, etc.) and displaying progress impossible information 402 on the other side of the light guide plate 5, for example, it is possible to make the light guide plate 5 stand out, and since the progress possible information 401 and the progress impossible information 402 can be used to inform people of whether or not they can proceed, it becomes possible to evacuate safely.

In addition, by projecting light onto the first recess 51 on one side or the first recess 54 on the other side to display the progress possible information 401, and by projecting light onto the second recess 52 on one side or the second recess 55 on the other side to display the progress impossible information 402, the progress possible information 401 and progress impossible information 402 can be made to stand out even in a relatively dark place, for example, making it possible to evacuate safely.

In addition, because the color of the light projected by the first lighting unit 61 on one side and the first lighting unit 64 on the other side is different from the color of the light projected by the second lighting unit 62 on one side and the second lighting unit 65 on the other side, for example, the display colors of the progress possible information 401 and the progress impossible information 402 can be made different from each other, making it possible to intuitively know whether progress is possible or not.

[Modifications to the embodiment]
Although the embodiment of the present invention has been described above, the specific configuration and means of the present invention can be modified and improved as desired within the scope of the technical ideas of each invention described in the claims. Such modifications will be described below.

(About the problem to be solved and the effects of the invention)
First, the problems that the invention aims to solve and the effects of the invention are not limited to those described above, and may vary depending on the implementation environment of the invention and the details of the configuration, and may solve only some of the problems described above or achieve only some of the effects described above.

(Regarding decentralization and integration)
In addition, the above-mentioned configuration is a functional concept, and does not necessarily have to be physically configured as shown in the figure. In other words, the specific form of distribution or integration of each part is not limited to that shown in the figure, and all or a part of it can be functionally or physically distributed or integrated in any unit. For example, by implementing some or all of the functions of the disaster prevention display device 2 described in the embodiment in the disaster prevention receiver 1, the disaster prevention receiver 1 may be used as the above-mentioned control device.

(About evacuation guidance display devices (part 1))
The configuration of the evacuation guidance display device 4 in FIG. 9 may be changed as desired. FIG. 15 is a cross-sectional view of the evacuation guidance display device. Note that FIG. 15 is a cross-sectional view corresponding to FIG. 9. Specifically, instead of the light guide plate 5 in FIG. 9, two light guide plates 501 and 502 may be provided via a light shielding plate 503 as shown in FIG. 15 to configure an evacuation guidance display device 4A. Note that the evacuation guidance display device 4A is the same as the evacuation guidance display device 4 except that the light guide plates 501 and 502 and the light shielding plate 503 are used instead of the light guide plate 5. The light guide plates 501 and 502 are a first display plate and a second display plate arranged along the thickness direction (X direction) of the light guide plates 501 and 502, and are the same as the light guide plate 5 in FIG. 9 except that two light guide plates are provided. The light shielding plate 503 is provided between the light guide plates 501 and 502, and blocks light between the light guide plates 501 and 502, and is of any color (for example, white, black, green, etc.). In this configuration, the light shielding plate 503 provided between the light guide plates 501 and 502 can prevent light from leaking between the light guide plates 501 and 502, for example, and therefore can improve the visibility of the progress possible information 401 and the progress impossible information 402. The light shielding plate 503 may be configured to block all light, or may be configured to block a portion of light.

(About evacuation guidance display devices (part 2))
The configuration of the evacuation guidance display device 4 in Fig. 1 may be changed as desired. For example, the evacuation guidance display device may be configured by providing two known liquid crystal displays with their back sides (opposite to the side displaying information) facing each other.

(About evacuation guidance display devices (part 3))
1 may be installed at any position other than the hanging wall 900. For example, it may be installed on a pillar or beam using a mounting bracket, or it may be installed in a state of hanging from the ceiling.

(Features)
Furthermore, the features of the above-described embodiments and the features of the modifications may be combined in any manner.

(Additional Note)
The evacuation guidance system of Appendix 1 comprises a display board device having a display board arranged facing the direction of travel of the passageway, and a control device that performs control to display, based on a fire occurrence signal received from a fire alarm system, progress possible information indicating that progress is possible on one side of the display board, and progress impossible information indicating that progress is impossible on the other side of the display board.

The evacuation guidance system of Appendix 2 is the evacuation guidance system of Appendix 1, in which the display board is a transparent board, and the display board device includes a first recess for displaying the progress possible information, a first lighting unit for projecting light into the first recess to display the progress possible information, a second recess for displaying the progress impossible information, and a second lighting unit for projecting light into the second recess to display the progress impossible information, which are provided on each of the one side and the other side of the display board.

The evacuation guidance system of Appendix 3 is the evacuation guidance system described in Appendix 2, in which the color of the light projected by the first lighting unit and the color of the light projected by the second lighting unit are different from each other.

The evacuation guidance system of Supplementary Note 4 is the evacuation guidance system described in any one of Supplementary Notes 1 to 3, in which the display board includes a first display board and a second display board arranged along the thickness direction of the display board, and the display board device includes a light shielding plate provided between the first display board and the second display board.

(Effect of supplementary notes)
According to the evacuation guidance system described in Appendix 1, by displaying information indicating whether proceeding is possible on one side of a display board provided facing the direction of travel of the passageway, and displaying information indicating whether proceeding is impossible on the other side of the display board, for example, it is possible to make the display board stand out, and since the information indicating whether proceeding is possible and the information indicating whether proceeding is impossible can be used to inform people of whether proceeding is possible or impossible, it is possible to evacuate safely.

According to the evacuation guidance system described in Appendix 2, by projecting light onto the first recess to display the progress possible information and projecting light onto the second recess to display the progress impossible information, the progress possible information and progress impossible information can be made conspicuous even in a relatively dark place, for example, so that safe evacuation is possible.

According to the evacuation guidance system described in Appendix 3, the color of the light projected by the first lighting unit and the color of the light projected by the second lighting unit are different from each other, so that, for example, the display colors of the information indicating whether proceeding is possible and information indicating that proceeding is not possible can be made different from each other, making it possible to intuitively know whether proceeding is possible or not.

According to the evacuation guidance system described in Appendix 4, by providing a light shielding plate between the first and second display boards, it is possible to prevent light from leaking between the first and second display boards, for example, thereby improving the visibility of the information on whether proceeding is possible and the information on whether proceeding is not possible.

1 Disaster prevention receiver 2 Disaster prevention display device 3 Sensor 4 Evacuation guidance display device 4A Evacuation guidance display device 5 Light guide plate 6 Illumination unit 21 Communication unit 22 Display unit 23 Operation unit 24 Recording unit 25 Control unit 41 Communication unit 42 Recording unit 43 Control unit 50 Recess 51 One side first recess 52 One side second recess 53 One side third recess 54 Other side first recess 55 Other side second recess 56 Other side third recess 61 One side first illumination unit 62 One side second illumination unit 63 One side third illumination unit 64 Other side first illumination unit 65 Other side second illumination unit 66 Other side third illumination unit 100 Disaster prevention system 311 Sensor 312 Sensor 313 Sensor 314 Sensor 315 Sensor 316 Sensor 401 Proceeding possible information 402 Proceeding impossible information 403 Fire occurrence information 411 Evacuation guidance display device 412 Evacuation guidance display device 413 Evacuation guidance display device 501 Light guide plate 502 Light guide plate 503 Light shielding plate 900 Hanging wall L1 Communication line R Evacuation route

Claims (2)

A display board device including a display board provided facing the travel direction of the passage;
displaying, on one side of the display board, progress information indicating that progress is possible, based on a fire occurrence signal received from a fire alarm system;
a control device that performs control to display impossibility of proceeding information on the other side of the display board, the impossibility of proceeding;
Equipped with
The display panel is a transparent panel,
The display panel device includes:
a first recess and a second recess provided on the one surface side of the display panel;
an other-surface-side first recess and an other-surface-side second recess provided on the other surface side of the display panel;
a one-surface-side first illumination unit that is disposed on a first side surface of the one surface side and projects light onto a second side surface of the one surface side that faces the first side surface of the one surface side;
a one-surface-side second illumination unit that is disposed on a second side surface of the one surface side and projects light onto a first side surface of the one surface side;
an other-surface-side first illumination unit that is disposed on a first side surface of the other surface side and projects light onto a second side surface of the other surface side that faces the first side surface of the other surface side;
an other-surface-side second illumination unit that is disposed on a second side surface of the other surface side and projects light onto a first side surface of the other surface side;
Equipped with
The first recess on the one surface reflects a part of the light projected from the one surface side first illumination unit toward the one surface side,
displaying the progress information on the one surface by performing a display on the one surface according to the shape of the first recess;
The second recess on the one surface reflects a part of the light projected from the one surface side second illumination unit toward the one surface side,
displaying the impossibility of proceeding information on the one surface by performing a display on the one surface according to the shape of the second recess;
The first recess on the other surface reflects a part of the light projected from the other surface side first illumination unit toward the other surface,
The progress possible information is displayed on the other surface by performing a display on the other surface according to the shape of the first recess,
The second recess of the other surface reflects a part of the light projected from the other surface side second illumination unit toward the other surface side,
displaying the impossibility of proceeding information on the other surface by performing a display on the other surface according to the shape of the second recess;
If it is possible to proceed to one side of the display board,
Light is projected from the one surface side first illumination unit, and light is not projected from the one surface side second illumination unit;
If it is not possible to proceed to one side of the display board,
The one surface side first illumination unit is prevented from projecting light, and the one surface side second illumination unit is caused to project light;
If it is possible to proceed to the other side of the display board,
light is projected from the other surface side first illumination unit and light is not projected from the other surface side second illumination unit;
If it is not possible to proceed to the other side of the display board,
The other surface side first illumination unit is prevented from projecting light, and the other surface side second illumination unit is caused to project light.
The evacuation guidance system is characterized by the above . The first recess on the one surface is
A portion where the transparent plate contacts the outside of the transparent plate in the first recess on the one surface is
The first side surface of the one surface is closer to the first side surface of the one surface as the first side surface moves from the one surface to the other surface.
2. The evacuation guidance system according to claim 1,

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