JP2023167044A - Guidance system and guidance lamp - Google Patents

Abstract

To provide a guidance system and guidance lamp for enabling an evacuee to easily recognize an evacuation route.SOLUTION: A guidance system 10 includes: a first light emission section 15, second light emission sections 16, and a third light emission section 17 for emitting light to guide an evacuee to an evacuation route; and a control device 20 connected to a detection section 21 for detecting a smoke generation state. The control device 20 controls an emission state of light from the first light emission section 15, the second light emission sections 16, and the third light emission section 17 based on the smoke generation state detected by the detection section 21. The first light emission section 15 emits a light beam 100 in a direction corresponding to an evacuation direction.SELECTED DRAWING: Figure 3

Description

The present invention relates to a guidance system and a guidance light that support evacuation guidance in the event of a disaster.

Buildings and other buildings are required to install guide lights that indicate the direction of evacuation exits. A guide light that can be dimmed according to the environment has been proposed. For example, Patent Document 1 describes a system that adjusts the light according to the environment and turns on all lights at a 100% dimming level in an emergency that requires evacuation.

Japanese Patent Application Publication No. 8-102370

By the way, in an environment where smoke is present due to an outbreak of fire or the like, it becomes difficult for evacuees to visually recognize an evacuation route. In addition, evacuees are easily psychologically disturbed in such an environment. As described above, in an environment where smoke exists, it becomes difficult for evacuees to recognize the location and direction of the evacuation exit indicated by the guide lights. In this case, accurate and efficient evacuation guidance is difficult.

A guidance system that solves the above problems includes a light emitting unit that emits light to guide evacuees to an evacuation route, and a control device connected to a detection unit that detects a smoking state, and the control device The output form of light from the light emitting section is controlled based on the smoke generation state detected by the section.

The guide light that solves the above problem is connected to a display section having a display surface that indicates the position or direction of the evacuation exit, a light emitting section provided at a position different from the display surface, and a detection section that detects the state of smoke generation. and a light emission control section, the light emission control section changing the output form of light from the light emission section according to the smoke generation state detected by the detection section.

According to the present invention, evacuees can easily recognize evacuation routes.

FIG. 1 is a schematic diagram of an embodiment of a guide light. The schematic diagram of the 3rd light emitting part in the same embodiment. FIG. 3 is a block diagram of the guidance system according to the embodiment. FIG. 3 is a schematic diagram showing the operation of the first light emitting section and the second light emitting section of the same embodiment. The figure which shows the state where the 3rd light emission part of the same embodiment emits light. FIG. 3 is a plan view schematically showing a building in which a plurality of guide lights are arranged in the same embodiment. FIG. 6 is a schematic diagram showing the operation of a guidance system in another embodiment. FIG. 4 is a schematic diagram of a guidance system in another embodiment.

Hereinafter, one embodiment of a guidance system and a guidance light will be described according to FIGS. 1 to 6. In this embodiment, evacuation guidance for disaster victims (evacuees, residents) inside the building is supported.
As shown in FIG. 1 , the guide light 11 includes a housing 12 . The casing 12 includes a display board 13 on the front side indicating the direction of the evacuation exit. In this embodiment, the display panel 13 has translucency. The display board 13 indicates the direction of the evacuation exit. The front side of the display board 13 is a display surface 13A.

A first light emitting section 15 is provided on the side surface 12A of the housing 12. The first light emitting unit 15 indicates the direction of the evacuation exit to evacuees by emitting light in an environment where smoke exists (hereinafter referred to as a smoke environment). The first light emitting section 15 does not emit light in normal times, but emits light in a smoke environment.

A second light emitting section 16 is provided on side surfaces 12A, 12B, bottom surface 12C, and top surface 12D of the housing 12. The second light emitting unit 16 notifies the evacuees of the position of the guide light 11 by emitting light. The second light emitting section 16 does not emit light during normal times, but emits light in a smoke environment.

FIG. 2 shows the third light emitting unit 17 (door lighting device) provided at the evacuation exit 40. The evacuation exit 40 illustrated in FIG. 2 includes a frame 41 and an evacuation door 42. The evacuation door 42 is rotatably provided with respect to the frame 41. An evacuation exit guide light 43 indicating the position of the evacuation exit 40 is provided above the evacuation exit 40 on the wall where the evacuation exit 40 is provided. The evacuation exit guide light 43 has a display surface 43E that indicates the position of the evacuation exit 40. The third light emitting section 17 is provided on a front surface 41A of the frame body 41 located on the hallway 44 side. The third light emitting section 17 includes, for example, a band-shaped body made of a resin sheet or the like, and a plurality of light sources fixed to the band-shaped body. The light source may be any light source that emits visible light, such as an LED light source. The strip is fixed to the evacuation door 42. Note that the third light emitting section 17 may be provided on the wall of the building. In this case, the third light emitting section 17 is provided on the wall so as to surround the frame 41. Note that the evacuation exit guide light 43 corresponds to the guide light in the claims.

Further, the evacuation exit guide light 43 provided at the evacuation exit 40 is also provided with second light emitting parts 16 on the side surfaces 43A, 43B, the bottom surface 43C, and the top surface 43D, similarly to the guide light 11.
The configuration of the guidance system 10 will be described with reference to FIG. 3. The guidance system 10 includes a guide light 11, a control device 20, a detection section 21, and a third light emitting section 17. The guide light 11 includes a light emission control section 25, light sources 26 to 28, and a panel 29. The light emission control section 25 controls the light emission of the light sources 26 to 28. Further, the light emission control section 25 includes a storage battery (not shown). Note that the evacuation exit guide light 43 includes a light emission control section 25, light sources 26, 27, and a panel 29 like the guide light 11, and has a configuration in which only the first light emission section 15 is omitted, so it will not be described here. The explanation will be omitted.

The light source 26 irradiates light toward the display panel 13 (see FIG. 1). An indicator indicating the direction of the evacuation exit 40 is displayed on the display board 13. The light source 26 is always maintained in a lit state except during inspection or the like. The display board 13 and the light source 26 constitute a display section 31.

The light source 28 constitutes the first light emitting section 15 . The light source 28 may be any light source that emits visible light, such as an LED light source or a laser light source. The light source 28 can change the direction of the emitted light ray 100 by manipulating the angle by the user. The light source 28 emits a light beam 100 from a through hole provided in the housing 12 or the like.

The wavelength of the light beam 100 emitted by the first light emitting section 15 is a wavelength that is easily scattered by smoke particles. For example, the wavelength of the light beam 100 is a wavelength at which the scattered light intensity is greater than other wavelengths. In this embodiment, the wavelength of the light beam 100 is constant. For example, particles with a complex refractive index of 1.53-0.008i and a particle size of 0.48 μm or less tend to cause light with short wavelengths to be easily scattered or absorbed by Mie scattering in the visible light region. Further, when smoke particles have various sizes, white light having a wide wavelength range in the visible light region is suitable for causing scattering. For this reason, a wavelength that is assumed to be easily scattered is selected depending on the environment in which the guide light 11 is installed. Therefore, in a smoke environment, the light rays 100 emitted from the first light emitting section 15 appear streak-like (linear) along a predetermined direction.

The light source 27 and the panel 29 constitute the second light emitting section 16. The light source 27 and the panel 29 are provided for each side surface 12A, 12B, bottom surface 12C, and top surface 12D. The plurality of second light emitting units 16 may share the light source 27. The light source 27 may be any light source that emits visible light, such as an LED or a laser light source. Panel 29 includes a transparent material that transmits visible light. Further, the panel 29 may include at least one of a reflection plate, a light guide plate, a diffusion plate, and the like. Light 101 emitted from the light source 27 enters the panel 29 and is then diffused within the panel 29. The diffused light 101 passes through the panel 29. This makes the entire surface of the panel 29 appear shiny.

The wavelength of the light 101 finally emitted from the panel 29 is a wavelength that is less likely to be scattered by smoke particles. For example, the wavelength of the light 101 is a wavelength whose scattered light intensity is lower than other wavelengths. For example, when the second light emitting unit 16 emits red light 101, the light source 27 may be a red LED that emits red light, and the panel 29 may be a red transparent material having transparency. For this reason, a wavelength that is expected to be less likely to be scattered is selected depending on the environment in which the guide light 11 is installed. For example, the light emitted from the second light emitting section 16 includes light with a longer wavelength than the light emitted from the first light emitting section 15. Therefore, evacuees can easily see the second light emitting section 16 even in a smoky environment.

The detection unit 21 is a device that detects the presence or absence of smoke. The detection unit 21 may be, for example, an optical sensor. This sensor may include a light source and a light receiving section that receives light emitted from the light source. The light receiving unit determines that smoke is generated when it receives reflected light reflected by smoke particles introduced into the sensor. Alternatively, this sensor may include an imaging section such as a CMOS image sensor. The imaging unit images the smoke particles introduced into the sensor and determines the presence or absence of the smoke particles. The detection unit 21 outputs a detection signal according to the detection result to the control device 20. Note that the plurality of guide lights 11 and evacuation exit guide lights 43 installed in the building do not each have one detection unit 21, but one detection unit is provided for a plurality of the guide lights 11 and evacuation exit guide lights 43. 21 may be provided.

The control device 20 includes a calculation section, a storage section, and a communication section (all not shown). The calculation unit controls the guide light 11 and the like using programs and data stored in the storage unit. Examples of the calculation unit include a CPU, an MPU, and the like. The storage unit is a storage device that stores data and various programs for executing various functions of the guidance system 10. The communication unit is an interface that establishes a communication route with other devices and sends and receives data.

The control device 20 controls the light emission control section 25 based on the detection signal output by the detection section 21. The control device 20 may be connected to only one guide light 11 or may be connected to a plurality of guide lights 11. When the control device 20 is connected to a plurality of guide lights 11, a distribution board or the like may be provided between the control device 20 and the light emission control section 25. The control device 20 receives a detection signal indicating a smoking state from the detection unit 21. If it is determined that no smoke is generated, the light sources 27 and 28 are maintained in the off state. Further, when the control device 20 determines that smoke is generated, the control device 20 controls the light emission control section 25 to cause the light sources 27 and 28 to emit light. Further, the control device 20 controls light emission (illumination) of the third light emitting section 17.

Moreover, when the control device 20 determines that no smoke is generated, the control device 20 maintains the third light emitting section 17 in the off state. Furthermore, when the control device 20 determines that smoke is generated, the third light emitting section 17 causes the third light emitting section 17 to emit light. The wavelength of the light emitted from the third light emitting section 17 is constant. As the wavelength output from the third light emitting section 17, a wavelength that is assumed to be less likely to be scattered is selected depending on the environment.

The operation of the guidance system 10 will be described with reference to FIGS. 4 to 6. In the example of FIG. 4, the guide light 11 is provided on the wall surface 46 of the hallway 45. An evacuation exit 40 is provided on a wall surface 47 perpendicular to the wall surface 46 on which the guide light 11 is provided. In the example of FIG. 4, the direction from the guide light 11 toward the evacuation exit 40 is the direction of the evacuation route.

The administrator of the guidance system 10 adjusts in advance the direction of the light source 28 of the guide light 11 installed on the wall surface 46 so that the light from the first light emitting section 15 is emitted to the evacuation exit 40.
When the detection section 21 does not detect smoke, the control device 20 maintains the second light emitting section 16 and the first light emitting section 15 of the guide light 11 in an off state. Further, the display section 31 remains lit.

As shown in FIG. 4, when the detection section 21 detects smoke, the control device 20 causes the first light emitting section 15 and the second light emitting section 16 to emit light based on the detection signal. That is, when smoke is generated, a new light emitting surface is added to the guide light 11. Since the light 101 emitted from the second light emitting section 16 is difficult to scatter, it is easily visible to surrounding evacuees even in a smoky environment. Therefore, evacuees on the evacuation route leading to the evacuation exit 40 can easily recognize the position of the guide light 11 by the second light emitting section 16.

Furthermore, the light beam 100 emitted by the first light emitting section 15 is emitted from the first light emitting section 15 toward the evacuation exit 40 . In the example of FIG. 4, the light beam 100 is irradiated onto the escape door 42. In the example shown in FIG. Light ray 100 is scattered by smoke particles. The evacuee can visually recognize the light beam 100 after visually recognizing the light from the second light emitting unit 16 or at the same time as viewing the light from the second light emitting unit 16 . Therefore, evacuees can easily grasp the evacuation direction. That is, since the direction of the evacuation route from the guide light 11 can be continuously indicated by the light beam 100 and the light 101, evacuees can easily recognize the direction of the evacuation route even in a smoke environment.

FIG. 5 shows a state in which the third light emitting section 17 emits light. When the detection unit 21 detects smoke, the control device 20 causes the third light emitting unit 17 to emit light based on the detection signal. Therefore, evacuees can recognize the position of the evacuation exit 40 even in a smoke environment. In particular, since the evacuation route from the guide light 11 to the evacuation exit 40 can be continuously shown by the light beam 100 and the lights 101 and 103, evacuees can easily recognize the direction of the evacuation route even in situations where they may be psychologically agitated. . Further, the control device 20 causes the second light emitting section 16 of the evacuation exit guide light 43 to emit light. Since the second light emitting parts 16 provided on the sides 43A, 43B, bottom surface 43C, and top surface 43D of the evacuation exit guide light 43 light up, evacuees can recognize the position of the evacuation exit 40 by the light emitted by the evacuation exit guide light 43. Cheap.

FIG. 6 shows an example in which the control device 20 controls the light emission of the plurality of guide lights 11. In the example of FIG. 6, a plurality of living rooms 52 are provided in the building 50. Each guide light 11 is installed in a hallway 51 between living rooms 52. When the detection section 21 detects smoke, the control device 20 causes the second light emitting section 16 and the first light emitting section 15 of the guide light 11 and the second light emitting section 16 of the evacuation exit guide light 43 to emit light.

The first light emitting unit 15 included in each guide light 11 emits a light beam 100 along the direction of the evacuation route. A guide light 11 near the evacuation exit 40 emits a light beam 100 toward the evacuation exit 40. The guide light 11 that cannot directly emit the light beam 100 to the evacuation exit 40 because of its long distance from the evacuation exit 40 emits the light beam 100 toward the adjacent guide light 11 or the like. That is, by connecting each guide light 11 and the evacuation exit 40 with the light beam 100, an evacuation route can be indicated. Further, the positions of the guide light 11 and the evacuation exit guide light 43 can be indicated by the second light emitting section 16. Therefore, evacuees can easily recognize the direction of the evacuation route and the position of the evacuation exit 40 even in a smoky environment. Further, even evacuees who are located far from the evacuation exit 40 can easily understand the direction of the evacuation route and the location of the evacuation exit 40. In addition, in the guidance system 10 installed in a building 50 having a plurality of floors, when the control device 20 determines that smoke has occurred in any one of the floors, the first light emitting unit 15 installed in each of the plurality of floors , the second light emitting section 16 and the third light emitting section 17 may be caused to emit light. Alternatively, since the smoke heads upward, the control device 20 may cause all of the first light emitting section 15, second light emitting section 16, and third light emitting section 17 installed in each floor above the floor where the smoke is generated to emit light. .

As explained above, according to the first embodiment, the following effects can be obtained.
(1) In the guidance system 10, the control device 20 controls the emission form of light from the first light emitting section 15, the second light emitting section 16, and the third light emitting section 17 based on the smoke generation state detected by the detection section 21. . According to this configuration, it is possible to output light in an output format that is easily visible to evacuees based on the presence or absence of smoke.

(2) The first light emitting unit 15 emits the light beam 100 in a direction corresponding to the evacuation direction. According to this configuration, in a situation where it is difficult for an evacuee to visually recognize an evacuation route due to smoke, the evacuee can easily recognize the evacuation direction by visually recognizing the light beam 100 emitted from the first light emitting section 15.

(3) The first light emitting unit 15 emits a light beam 100 having a wavelength that causes scattering of smoke particles along the direction in which the evacuation exit 40 is located. Therefore, the light ray 100 appears linear along the direction in which the evacuation exit 40 is located in the smoke environment. Therefore, the evacuee can head toward the evacuation exit 40 by following the light ray 100.

(4) The second light emitting unit 16 is provided so as to surround the display surface 13A, which is a different surface from the display surface 13A of the guide light 11 having the display surface 13A displaying the evacuation exit 40. Further, the second light emitting section 16 is provided on a surface of the evacuation exit guide light 43 that is different from the display surface 43E, and is provided so as to surround the display surface 43E. According to the above configuration, even in a situation where it is difficult for the evacuee to see the evacuation route due to smoke, the evacuee can reach the guide light 11 or the evacuation exit guide light 43 by relying on the light 101 of the second light emitting section 16. be able to. When the user reaches the guide light 11, it becomes possible to follow the evacuation route based on the display screen 13A located in front of the user.

(5) The control device 20 emits light from the third light emitting section 17 provided at the evacuation exit 40 based on the smoke generation state detected by the detection section 21. According to this configuration, even in a situation where it is difficult for the evacuee to visually recognize the evacuation route due to smoke, the evacuee can use the first light emitting section 15 or the second light emitting section 16 while the third light emitting section 17 emits light. By visually recognizing the light, it becomes possible to recognize the position of the evacuation exit 40.

The above embodiment can be modified and implemented as follows. Each embodiment and the following modification examples can be implemented in combination with each other within a technically consistent range.
(Output format according to smoke density)
- The smoke state detected by the detection unit 21 includes information regarding the concentration of smoke, and the control device 20 controls at least one of the first light emitting unit 15, the second light emitting unit 16, and the third light emitting unit 17 based on the smoke concentration. , the output form of the emitted light may be changed.

In this aspect, the detection unit 21 detects the concentration of smoke. When the detection unit 21 detects the occurrence of smoke and the concentration of smoke, it outputs a detection signal according to the detection result. Upon receiving the detection signal indicating the detection result, the control device 20 determines whether the smoke concentration is equal to or higher than a predetermined value based on the detection signal.

For example, the control device 20 does not cause the first light emitting section 15, the second light emitting section 16, and the third light emitting section 17 to emit light when the concentration of smoke is less than a predetermined value. Further, when the concentration of smoke is equal to or higher than a predetermined value, the control device 20 causes the first light emitting section 15, the second light emitting section 16, and the third light emitting section 17 to emit light.

Alternatively, the control device 20 does not cause the first light emitting section 15, the second light emitting section 16, and the third light emitting section 17 to emit light when the concentration of smoke is less than the first threshold value. Further, when the concentration of smoke is greater than or equal to the first threshold value and less than or equal to the second threshold value, the control device 20 causes only the second light emitting section 16 or the second light emitting section 16 and the third light emitting section 17 to emit light. Good too. Since the light 101 emitted by the second light emitting section 16 and the light 103 emitted by the third light emitting section 17 are not easily scattered by smoke particles, they are emitted regardless of the concentration of smoke. Further, the control device 20 may further cause the first light emitting section 15 to emit light when the concentration of smoke exceeds the second threshold value.

For example, the control device 20 may cause the first light emitting section 15, the second light emitting section 16, and the third light emitting section 17 to emit light one by one in stages depending on the concentration of smoke. According to this configuration, since the output form of light changes depending on the density of smoke, it becomes possible to emit light that is easily visible to evacuees.

(Output form according to the average particle diameter of smoke particles)
-Smoke particles (particulate matter) generated by fires, etc. include soot, oxides, polycyclic aromatic monovalent carbon, etc. The degree of light scattering changes depending on the size of the smoke particles. The guidance system 10 may change the light output mode depending on the size of the smoke particles. For example, the smoke state detected by the detection unit 21 includes information regarding the smoke particle size, and the control device 20 controls the first light emitting unit 15, the second light emitting unit 16, and the third light emitting unit 17 based on the information regarding the smoke particle size. The output form of the emitted light may be changed for at least one of them. The information regarding the particle size (particle size parameter) includes information indicating the most frequently occurring particle size, average particle size (median diameter (D50), mode diameter, etc.), or particle size distribution.

In this embodiment, the first light emitting unit 15 can change the wavelength of the light beam 100. Furthermore, the second light emitting section 16 and the third light emitting section 17 can also change the wavelengths of the lights 101 and 103. The detection unit 21 also acquires information regarding the particle diameter of smoke particles. The control device 20 stores, in a storage device, information on the particle diameter of smoke particles, wavelength management information that associates the scattered light intensity with the light wavelength, and the like. Furthermore, in addition to or in addition to the light scattering intensity, the wavelength management information may be associated with information regarding the particle diameter and at least one of light scattering ease and light scattering ratio.

Based on the wavelength management information, the control device 20 identifies the wavelength at which the scattering intensity is the highest based on the acquired information regarding the particle size of the smoke particles. Then, the first light emitting section 15 is caused to emit a light beam of the specified wavelength. Furthermore, based on this wavelength management information, the control device 20 specifies a wavelength at which the intensity of scattered light is small with respect to the acquired information regarding the particle size of smoke particles. Then, the second light emitting section 16 is caused to emit light of the specified wavelength. Alternatively, the control device 20 causes the third light emitting section 17 to emit light of a specified wavelength. According to this configuration, since the output form of light is changed according to information regarding the particle size of smoke, it becomes possible to emit light that is easier for evacuees to see.

Alternatively, the guidance system 10 may change the light output mode according to the particle size distribution of the smoke particles instead of or in addition to the particle size of the smoke particles.
The guidance system 10 may also measure the complex refractive index of the air containing smoke particles in addition to or in place of the particle size. Then, the light output mode may be changed depending on the complex refractive index.

(First light emitting part)
- In the above embodiment, the guide light 11 emits the light beam 100 in a fixed direction toward the evacuation exit 40. Alternatively, as shown in FIG. 7, the first light emitting section 15 may operate the light source 28 to change the emission direction of the light beam 100. In this embodiment, the first light emitting section 15 includes a driving section that changes the direction of the light source 28. The drive unit includes a motor that is a drive source, and a transmission mechanism that transmits the power of the drive source to the light source. The guide light 11 changes the emission direction of the light source 28 by swinging it from top to bottom and from bottom to top.

- In the above embodiment, the first light emitting section 15 emits the light beam 100 of a constant wavelength. Alternatively, the first light emitting section 15 may change its wavelength continuously or intermittently while emitting light. According to this aspect, it becomes easier for evacuees to pay attention to the light beam 100.

- In the above embodiment, the guide light 11 is provided with one first light emitting section 15. Instead of this, the guide light 11 may be provided with a plurality of first light emitting parts 15. Each first light emitting section 15 may emit light rays 100 in the same direction, or may emit light in different directions.

- In the above embodiment, the first light emitting section 15 does not emit light in normal times, but emits light in a smoke environment. Alternatively, the light may be emitted during normal times as well. Further, the first light emitting section 15 may be switched from a light-off state to a light emitting state depending on the concentration of smoke and the type of smoke.

- In the embodiment described above, the first light emitting section 15 emits linear light. Alternatively, the first light emitting section 15 may include a projection section that projects an image. In a smoky environment, images are projected onto the smoke because light is scattered. The image is, for example, an arrow indicating the direction of an evacuation route.

(Second light emitting section)
- In the above embodiment, the second light emitting section 16 is provided in the guide light 11 and the evacuation exit guide light 43. Instead or in addition to this, the second light emitting section 16 may be provided only in the guide light 11. Further, the second light emitting section 16 may be provided only in the evacuation exit guide light 43.

- In the above embodiment, the second light emitting section 16 is provided on the side surfaces 12A, 12B, the bottom surface 12C, and the top surface 12D of the housing 12 of the guide light 11. Instead, the second light emitting section 16 may be provided on one, two, or three of the surfaces of the housing 12. Further, second light emitting parts were provided on the side surfaces 43A, 43B, the bottom surface 43C, and the top surface 43D of the evacuation exit guide light 43. Instead, the second light emitting section 16 may be provided on one, two, or three of these surfaces.

- In the above embodiment, the second light emitting section 16 emits light 101 of a constant wavelength. Alternatively, the second light emitting section 16 may change its wavelength continuously or intermittently while emitting light. According to this aspect, it becomes easier for evacuees to pay attention to the light 101.

- The second light emitting unit 16 continues to emit light in a smoke environment. Alternatively or in addition to this, the second light emitting section 16 may be made to blink at regular intervals. According to this aspect, it becomes easier for evacuees to pay attention to the light 101.

- In the above embodiment, the second light emitting section 16 does not emit light under normal conditions, but emits light in a smoke environment. Alternatively, the light may be emitted during normal times as well. Further, the second light emitting section 16 may be switched from a non-light emitting state (unlit state) to a light emitting state depending on the concentration of smoke and the type of smoke.

(Third light emitting section)
- In the above embodiment, the third light emitting section 17 emits light 103 of a constant wavelength. Alternatively, the third light emitting section 17 may change its wavelength continuously or intermittently while emitting light. According to this aspect, it becomes easier for evacuees to pay attention to the light 103.

- The third light emitting unit 17 continues to emit light in a smoke environment. Alternatively or in addition to this, the third light emitting section 17 may be made to blink at regular intervals. According to this aspect, it becomes easier for evacuees to pay attention to the light 103.

- In the above embodiment, the third light emitting section 17 does not emit light in normal times, but emits light in a smoke environment. Alternatively, the light may be emitted during normal times as well. Further, the third light emitting section 17 may be switched from a non-light emitting state (unlit state) to a light emitting state depending on the concentration of smoke and the type of smoke.

(Operation of guidance system)
- In the above embodiment, when smoke is generated within the building 50, the plurality of first light emitting sections 15 and the plurality of second light emitting sections 16 are caused to emit light. Instead of this, the first light emitting section 15 and the second light emitting section 16 located in a part of the building 50 where the concentration of smoke is high may be made to emit light.

(Guidance system configuration)
- In the above embodiment, the guide light 11, the control device 20, and the detection unit 21 are separate devices. Instead of this, the guide light 11 may include a control device 20 and a detection section 21. Alternatively, the guide light 11 may include the control device 20 and may be a separate device from the detection unit 21. Alternatively, the guide light 11 may include the detection unit 21 and may be a separate device from the control device 20.

- In the above embodiment, the guide light 11 is provided with the first light emitting section 15. Alternatively, as shown in FIG. 8, the first light emitting section 15A and the guide light 11 may be separate devices. The first light emitting section 15A and the guide light 11 each include a separate control section (not shown), and each control section controls the first light emitting section 15A and the guide light 11 based on a signal acquired from the control device 20. Control. Similarly, the second light emitting section 16A and the guide light 11 may be separate devices. Although only one second light emitting section 16A is shown in FIG. 8, a plurality of second light emitting sections 16A may be provided depending on the position and environment where the guide light 11 is installed. The second light emitting section 16A and the guide light 11 each have a separate control section (not shown), and each control section controls the second light emitting section 16A and the guide light 11 based on a signal acquired from the control device 20. Control. Since the second light emitting section 16A has a function of indicating the position of the guide light 11, it is preferably provided near the guide light 11. In addition, the second light emitting section 16 provided in the evacuation exit guide light 43 in the above embodiment may also be a separate device.

- In the above embodiment, the control device 20 is connected to the detection section 21. Alternatively or in addition to this, it may be connected to a disaster prevention monitoring device that monitors the occurrence of a fire. The disaster prevention monitoring device is connected to sensors placed inside the building. This sensor determines the occurrence of a fire by acquiring sensing information such as smoke, heat, flame, etc. When the control device 20 receives the abnormality detection signal from the disaster prevention monitoring device, it operates at least one of the first light emitting section 15, the second light emitting section 16, and the third light emitting section 17.

- In the above embodiment, the guidance system 10 may include one of the first light emitting section 15, the second light emitting section 16, and the third light emitting section 17. Alternatively, the guidance system 10 may include a first light emitting section 15 and a second light emitting section 16, a second light emitting section 16 and a third light emitting section 17, or a first light emitting section 15 and a third light emitting section 17. .

DESCRIPTION OF SYMBOLS 10... Guidance system, 11... Guidance light, 13A... Display surface, 15, 15A... First light emitting part, 16, 16A... Second light emitting part, 17... Third light emitting part, 20... Control device, 21... Detection part, 25...Light emission control unit, 31...Display unit, 40...Evacuation exit, 100...Light ray, 101, 103...Light.

Claims (9)

a light emitting part that emits light to guide evacuees to an evacuation route;
A control device connected to a detection unit that detects a smoke generation state,
A guidance system in which the control device controls an output form of light from the light emitting section based on the smoke generation state detected by the detection section. The guidance system according to claim 1, wherein the light emitting unit is a first light emitting unit that emits a light beam in a direction corresponding to an evacuation direction. The guidance system according to claim 2, wherein the first light emitting unit emits the light beam having a wavelength that causes scattering of smoke particles along a direction corresponding to an evacuation direction. The guidance system according to claim 1, wherein the light emitting part is a second light emitting part provided on a surface different from the display surface of a guide light having a display surface indicating the position or direction of the evacuation exit. The guidance system according to claim 1, wherein the light emitting unit is a third light emitting unit provided at an evacuation exit and indicating the position of the evacuation exit. The guidance system according to any one of claims 1 to 5, wherein the wavelength of the light emitted by the light emitting section is changed depending on the smoke generation state. The guidance system according to any one of claims 1 to 5, wherein the smoke generation state includes information regarding the concentration of smoke, and the output form of the light emitted by the light emitting section is changed based on the concentration of smoke. The guidance system according to any one of claims 1 to 5, wherein the smoke generation state includes information regarding the particle size of smoke, and the output form of light from the light emitting section is changed based on the particle size of the smoke. a display section having a display surface indicating the position or direction of the evacuation exit;
a light emitting section provided at a position different from the display surface;
A light emission control unit connected to a detection unit that detects a smoke emission state,
The light emission control section is a guide light that changes the output form of light from the light emission section according to the smoke generation state detected by the detection section.

Images