Disaster prevention lighting equipment and disaster prevention systems

Abstract

To reduce a risk of harm to people due to an occurrence of an emergency state.SOLUTION: A disaster prevention lighting apparatus 1b is an apparatus installed in a building. The disaster prevention lighting apparatus 1b includes an acquisition unit 5 and a presentation unit 6b. The acquisition unit 5 acquires emergency information from the outside. The emergency information is information about an occurrence of an emergency state. The presentation unit 6b modifies information which is presented based on the emergency information acquired by the acquisition unit 5. The presentation unit 6b has: a function of displaying a pictograph mark at a normal time; and a function of displaying, as evacuation information, a figure for indicating that a direction in which the disaster prevention lighting apparatus 1b is installed is different from an evacuation direction when the information presented by the presentation unit 6b at the normal time is not suitable as the evacuation information based on the emergency information acquired by the acquisition unit 5.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure generally relates to disaster prevention lighting fixtures and disaster prevention systems, and more particularly to disaster prevention lighting fixtures installed in buildings and disaster prevention systems equipped with disaster prevention lighting fixtures. [Background technology]

[0002] BACKGROUND ART Conventionally, emergency lighting devices that turn on a light source during a power outage have been known as disaster prevention lighting devices (see, for example, Patent Document 1).

[0003] The emergency lighting device described in Patent Document 1 includes a light source unit, a lighting circuit, a charging circuit, a power outage detection circuit, and a control circuit. When the power outage detection circuit does not detect a power outage in the external power supply, the control circuit is configured to operate the charging circuit and stop the lighting circuit (i.e., cause the lighting circuit to turn off the light source unit). On the other hand, when the power outage detection circuit detects a power outage in the external power supply, the control circuit is configured to stop the charging circuit and operate the lighting circuit. This causes the light source unit to light up when the external power supply fails. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-73276 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, there has been a demand for reducing the risk of harm (damage) to people in the event of an emergency. However, in conventional disaster prevention lighting devices such as the emergency lighting device described in Patent Document 1, the light source only lights up when the external power supply fails.

[0006] The present disclosure has been made in consideration of the above points, and an object of the present disclosure is to provide a disaster prevention lighting device and a disaster prevention system that can reduce harm (damage) to people in the event of an emergency. [Means for solving the problem]

[0007] A disaster prevention lighting device according to an aspect of the present disclosure is installed in a building. The disaster prevention lighting device includes a guidance display unit, an acquisition unit, and a presentation unit. The guidance display unit displays evacuation information. Mouth The acquisition unit acquires emergency information from an external source, and the emergency information is information relating to the occurrence of an emergency. The presentation unit is for presenting evacuation information regarding evacuation in the emergency situation. The acquisition unit acquires the emergency information. In some cases , the above Guidance display section is usually display do When the emergency exit indicated by the pictogram is not suitable for evacuation in the emergency situation , When facing the guidance display, the direction ahead is not the evacuation direction A graphic indicating this is displayed on the guidance display unit. do .

[0008] A disaster prevention system according to one aspect of the present disclosure includes a disaster prevention lighting device and a control device. The disaster prevention lighting device is installed in a building. The control device controls the disaster prevention lighting device. The control device has an acquisition unit. The acquisition unit acquires emergency information from outside. The emergency information is information regarding the occurrence of an emergency. The disaster prevention lighting device has a guidance display unit and a presentation unit. The guidance display unit displays information indicating evacuation directions. Mouth A pictogram is displayed. The presentation unit is for presenting evacuation information regarding evacuation in the emergency situation. The acquisition unit acquires the emergency information. In some cases , the above Guidance display section is usually display do When the emergency exit indicated by the pictogram is not suitable for evacuation in the emergency situation, , When facing the guidance display, the direction ahead is not the evacuation direction A graphic indicating this is displayed on the guidance display unit. do . [Effects of the Invention]

[0009] According to the disaster prevention lighting device and disaster prevention system according to the above aspects of the present disclosure, it is possible to reduce the risk of harm to people in the event of an emergency. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a block diagram showing the configuration of a disaster prevention lighting device according to the first embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the disaster prevention lighting fixture. [Figure 3] FIG. 3 is a block diagram showing the configuration of a disaster prevention lighting device according to the second embodiment. [Figure 4] FIG. 4 is a perspective view of the disaster prevention lighting fixture. [Figure 5] FIG. 5 is a perspective view of a main part of the disaster prevention lighting fixture. [Figure 6] 6A to 6E are schematic diagrams showing display examples of the disaster prevention lighting device. [Figure 7] FIG. 7 is a block diagram showing the configuration of a disaster prevention lighting device according to the third embodiment. [Figure 8] FIG. 8 is a perspective view of the disaster prevention lighting fixture. [Figure 9] 9A to 9D are schematic diagrams showing display examples of the disaster prevention lighting device. [Figure 10] FIG. 10 is a block diagram showing the configuration of a disaster prevention system according to the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, disaster prevention lighting devices according to embodiments 1 to 3 and a disaster prevention system according to embodiment 4 will be described with reference to the drawings. Figures 2, 4, 5, and 8 referred to in the following embodiments are schematic diagrams, and the ratios of the sizes and thicknesses of the components in the drawings do not necessarily reflect the actual dimensional ratios.

[0012] (Embodiment 1) (1) Disaster prevention lighting equipment The configuration of a disaster prevention lighting device 1 according to the first embodiment will be described with reference to the drawings.

[0013] As shown in Fig. 1, the disaster prevention lighting fixture 1 according to the first embodiment includes a light source unit 2, a lighting device 3, an emergency power supply 4, an acquisition unit 5, a presentation unit 6, and a control circuit 7. As shown in Fig. 2, the disaster prevention lighting fixture 1 also includes a fixture body 81, a cover 82, and a plurality of (two in Fig. 2) support fixtures 83.

[0014] As shown in FIGS. 1 and 2, the disaster prevention lighting device 1 according to the first embodiment is an emergency lighting device (emergency light) that turns on the light source 21 of the light source unit 2 when the external power supply 91 is stopped (in an emergency). The disaster prevention lighting device 1 is configured to be installed in a building such as a high-rise building or a large commercial facility. The disaster prevention lighting device 1 is installed in a ceiling material such as a passageway or a corridor within the building. The disaster prevention lighting device 1 is also a recessed lighting device that is installed in a ceiling material within the building so that a portion of the ceiling material is recessed into the back side of the ceiling material through a recessed hole formed in the ceiling material.

[0015] The disaster prevention lighting device 1 is configured to acquire emergency information and evacuation information from outside. In the example of FIG. 1 , the disaster prevention lighting device 1 is configured to acquire emergency information and evacuation information from an emergency information transmission system 92 and an input device 93. More specifically, the disaster prevention lighting device 1 is configured to acquire emergency information from the emergency information transmission system 92 and acquire emergency information and evacuation information from the input device 93. Note that the disaster prevention lighting device 1 may be configured to acquire both the emergency information and the evacuation information from the emergency information transmission system 92. Alternatively, the disaster prevention lighting device 1 may be configured to acquire only one of the emergency information and the evacuation information from the input device 93.

[0016] In this specification, emergency information is information related to the occurrence of an emergency. For example, emergency information is information transmitted from the emergency information transmission system 92 when an emergency occurs. As another example, emergency information is information (information related to the occurrence of an emergency) input to the input device 93. Examples of emergency information include information indicating that an emergency has occurred and the location where the emergency has occurred.

[0017] An example of an emergency is a disaster. In this specification, a disaster refers to damage to at least one of human social life and human life. Examples of disasters include fires and natural disasters. In this specification, a natural disaster is a disaster caused by a natural phenomenon. Examples of natural phenomena include storms, heavy rain, heavy snowfall, floods, storm surges, earthquakes, tsunamis, and volcanic eruptions. In particular, in this specification, a natural disaster is a disaster caused by at least one of a tsunami and an earthquake.

[0018] In this specification, evacuation information refers to information related to evacuation in an emergency. For example, evacuation information is information for guiding evacuation when an emergency occurs. Examples of evacuation information include the type of disaster, the type of harm (damage) that people will suffer from the disaster, the time until people will be harmed by the disaster, the location of an evacuation site, the direction of the evacuation site, the distance to the evacuation site, the route to the evacuation site, and the travel time to the evacuation site.

[0019] (2) Emergency information transmission system 1 is, for example, a nationwide instantaneous warning system (J-Alert). The emergency information transmission system 92 detects the occurrence of an emergency and transmits emergency information related to the detected emergency.

[0020] (3) Input device The input device 93 shown in Fig. 1 is a device that accepts input of emergency information and evacuation information. For example, when an emergency occurs, the input device 93 accepts input of emergency information related to the occurrence of the emergency. As another example, when an emergency occurs, the input device 93 accepts input of evacuation information related to evacuation in response to the emergency. The input device 93 is, for example, a device owned by a local government.

[0021] (4) Components of disaster prevention lighting equipment Hereinafter, each component of the disaster prevention lighting device 1 according to the first embodiment will be described with reference to the drawings.

[0022] (4.1) Light source block As shown in FIGS. 1 and 2, the light source unit 2 includes a light source 21, a lens block 22, a heat dissipation member 23, and an attachment member 24.

[0023] The light source 21 shown in FIG. 1 is, for example, an LED (Light Emitting Diode) module, and one or more LED chips are mounted in the center of the upper surface of a rectangular, flat substrate. These LED chips are, for example, blue light-emitting diodes that emit blue light. The substrate containing the LED chips is covered with a sealing resin. The sealing resin is a translucent resin material mixed with a fluorescent substance that converts the wavelength of the blue light emitted from the LED chips. When a DC voltage is applied, the light source 21 emits white illumination light.

[0024] 2 is made of, for example, glass, and has a lens 221 and a flange 222. The lens 221 has a truncated cone shape. The flange 222 has an annular shape and protrudes outward from the periphery of the lens 221. The lens 221 has an entrance surface shaped like a paraboloid of revolution. The lens 221 is configured to control the light distribution of light emitted from the light source 21 and incident on the entrance surface.

[0025] The heat dissipation member 23 shown in FIG. 2 is made of a plate material made of aluminum or an aluminum alloy, and has a coupling part that is thermally coupled to the light source 21 (see FIG. 1) and a fixing part 231 that is fixed to the lighting device 3.

[0026] 2 is formed in a circular ring shape from a synthetic resin material such as polycarbonate resin, etc. The mounting member 24 has a circular hole 241.

[0027] (4.2) Device body As shown in FIG. 2, the fixture body 81 houses the lighting device 3. The fixture body 81 is formed in a cylindrical shape with an opening at the bottom end and a closed top end. The fixture body 81 is formed by punching and bending a single sheet of metal such as a zinc steel plate or a stainless steel plate. The fixture body 81 has a polygonal bottom plate, side plates 811, and a flange 812. The side plates 811 are connected to the bottom plate of the fixture body 81 and form the sides of the fixture body 81. The flange 812 is annular and protrudes outward from the lower edge of the side plates 811.

[0028] (4.3) Cover 2, the cover 82 is disk-shaped and larger in diameter than the fixture body 81 (the outer diameter of the leading edge of the flange 812), and is formed by processing a steel plate. A circular through-hole 821 is formed in the center of the cover 82. The lens 221 of the lens block 22 of the light source unit 2 is inserted into the through-hole 821. The cover 82 is configured to releasably close the opening on the front surface of the fixture body 81.

[0029] Mounting springs 84 are attached to the front and rear ends of the upper surface of the cover 82. The pair of mounting springs 84 are removably inserted into insertion grooves 813, one pair of which is provided on the front side and one pair of which is provided on the rear side of the inner circumferential surface of the fixture body 81. In other words, by inserting the mounting springs 84 into the pair of insertion grooves 813, the cover 82 is held on the fixture body 81 in a state in which the opening at the lower end of the fixture body 81 is closed.

[0030] (4.4) Supports As shown in FIG. 2 , the multiple supports 83 are attached to a side plate 811 of the fixture body 81. Each support 83 is formed in the shape of a long leaf spring. One longitudinal end of each support 83 is fixed to the side plate 811 of the fixture body 81, and the other longitudinal end is configured to be flexible in a direction approaching the bottom plate of the fixture body 81 (upward). The fixture body 81 is inserted from below into a recessed hole provided in a ceiling material in a state in which the other ends of the pair of supports 83 are bent in a direction approaching the bottom plate of the fixture body 81. When the fixture body 81 is inserted into the recessed hole, each of the multiple supports 83 returns to its original state before being bent, and the fixture body 81 is supported by the ceiling material in a state in which the ceiling material is sandwiched between the multiple supports 83 and the flange 812 of the fixture body 81.

[0031] (4.5) Lighting device As shown in Fig. 1, the lighting device 3 is configured to light the light source 21 of the light source unit 2. The lighting device 3 includes a power supply circuit 31, a charging circuit 32, a lighting circuit 33, a power outage detection circuit 34, and a monitor lamp 35. Furthermore, as shown in Fig. 2, the lighting device 3 includes a housing 36. The lighting device 3 is housed in a fixture body 81. While housed in the fixture body 81, the lighting device 3 is fixed to the fixture body 81.

[0032] The power supply circuit 31 is, for example, a self-excited switching power supply circuit such as a ringing choke converter. The power supply circuit 31 converts AC voltage supplied from an external power source 91 (for example, a commercial power system) into DC voltage. The charging circuit 32 is configured to charge the storage battery of the emergency power supply 4.

[0033] The charging circuit 32 charges the emergency power supply 4 when power is being supplied from the external power supply 91. More specifically, the charging circuit 32 operates when power is being supplied from the external power supply 91, and is configured to pass a constant charging current from the power supply circuit 31 to the emergency power supply 4 in accordance with instructions from a lighting control unit 71, which will be described later.

[0034] The lighting circuit 33 is configured to supply power to the light source 21 of the light source unit 2. More specifically, when the external power supply 91 is stopped, the lighting circuit 33 lights up the light source 21 with power supplied from the emergency power supply 4 in accordance with instructions from a lighting control unit 71, which will be described later.

[0035] The power failure detection circuit 34 is configured to detect a power failure in the external power supply 91. More specifically, the power failure detection circuit 34 detects a power failure in the external power supply 91 from the output voltage of the power supply circuit 31, and notifies the control circuit 7 of the detection result.

[0036] The monitor lamp 35 is electrically connected between the charging circuit 32 and the emergency power supply 4. The monitor lamp 35 is, for example, a light-emitting diode that emits green light, and is provided on the fixture body 81 (see FIG. 2). The monitor lamp 35 emits light in response to the charging current supplied from the charging circuit 32 to the emergency power supply 4, and indicates that the emergency power supply 4 is being charged.

[0037] (4.6) Emergency power supply As shown in FIG. 2, the emergency power supply 4 has a plurality of secondary batteries and a battery case 41. Each secondary battery is, for example, a cylindrical nickel-metal hydride battery or a cylindrical lithium-ion secondary battery. The plurality of secondary batteries are electrically connected in series. The battery case 41 houses the plurality of secondary batteries. The battery case 41 is formed in a cylindrical shape with horseshoe-shaped (U-shaped) bottom surfaces on both the top and bottom sides. The plurality of secondary batteries are housed in the battery case 41 so that their axial direction is the up-down direction and they are lined up in a row along the radial direction.

[0038] As described above, the disaster prevention lighting device 1 according to this embodiment is an emergency lighting device, and therefore in an emergency, power is supplied from the emergency power source 4 to light the light source 21. Here, an emergency refers to, for example, a power outage of the external power source 91.

[0039] (4.7) Acquisition part The acquisition unit 5 shown in FIG. 1 acquires emergency information and evacuation information from an external source. More specifically, the acquisition unit 5 acquires the emergency information from an emergency information transmission system 92. Furthermore, the acquisition unit 5 acquires the emergency information and evacuation information from an input device 93 that accepts input of emergency information. The acquisition unit 5 acquires the emergency information and evacuation information when an emergency occurs. The acquisition unit 5 receives a signal including the emergency information and evacuation information, for example, by wired or wireless communication. The acquisition unit 5 outputs the emergency information and evacuation information included in the received signal to the control circuit 7.

[0040] (4.8) Presentation part The presentation unit 6 shown in FIG. 1 includes a sound output unit 61. The presentation unit 6 presents evacuation information. More specifically, when an emergency occurs, the presentation unit 6 presents the evacuation information in accordance with instructions from a presentation control unit 73 (described later) of the control circuit 7. The evacuation information presented by the presentation unit 6 is evacuation information regarding evacuation in response to an emergency in the emergency information acquired by the acquisition unit 5, and the evacuation information acquired by the acquisition unit 5.

[0041] The presentation unit 6 also presents emergency information. More specifically, when an emergency occurs, the presentation unit 6 presents evacuation information regarding evacuation in the event of an emergency, in accordance with instructions from a presentation control unit 73, which will be described later.

[0042] The sound output unit 61 has an audio output function of outputting emergency information and evacuation information by voice. The sound output unit 61 includes a speaker 611 and a drive circuit as shown in FIG. 2. The speaker 611 is attached to the cover 82. The drive circuit drives the speaker 611. More specifically, the drive circuit amplifies an audio signal from the control circuit 7 and outputs the amplified audio signal to the speaker 611, thereby driving the speaker 611.

[0043] The presentation unit 6 presents, as evacuation information, at least one of the type of disaster, the type of harm that people will suffer as a result of the disaster, the time until people will suffer harm as a result of the disaster, the location of the evacuation site, the direction of the evacuation site, the distance to the evacuation site, the route to the evacuation site, and the travel time to the evacuation site.

[0044] (4.9) Control circuit 1, the control circuit 7 includes a lighting control unit 71, a calculation unit 72, a presentation control unit 73, and a storage unit 74. The control circuit 7 includes a computer (including a microcomputer) equipped with a processor and a memory as its main components. The computer functions as the control circuit 7 when the processor executes an appropriate program. The program may be pre-recorded in the memory, or may be provided via a telecommunications line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

[0045] (4.9.1) Lighting control section The lighting control unit 71 shown in FIG. 1 controls the charging circuit 32 and the lighting circuit 33 of the lighting device 3. More specifically, when the power outage detection circuit 34 does not detect a power outage in the external power source 91, the lighting control unit 71 operates the charging circuit 32 and stops the lighting circuit 33. In other words, the light source 21 of the light source unit 2 does not light up. On the other hand, when the power outage detection circuit 34 detects a power outage in the external power source 91, the lighting control unit 71 stops the charging circuit 32 and operates the lighting circuit 33. As a result, when the external power source 91 fails, the light source 21 of the light source unit 2 lights up, thereby illuminating the location where the disaster prevention lighting device 1 is installed.

[0046] (4.9.2) Arithmetic section The calculation unit 72 calculates evacuation information using the emergency information acquired by the acquisition unit 5, and outputs the calculated evacuation information to the presentation control unit 73. More specifically, the calculation unit 72 uses the emergency information input from the acquisition unit 5 to calculate, as evacuation information, at least one of the type of disaster, the type of harm that people will suffer as a result of the disaster, the time until people will be harmed by the disaster, the location of the evacuation site, the direction of the evacuation site, the distance to the evacuation site, the route to the evacuation site, and the travel time to the evacuation site.

[0047] For example, the calculation unit 72 uses the current location information and map information to determine the distance to the evacuation site, the route to the evacuation site, and the travel time to the evacuation site as evacuation information. The current location information and map information used by the calculation unit 72 are stored in the storage unit 74. The current location information and map information may be obtained from outside when the disaster prevention lighting device 1 is installed, or may be obtained from outside during calculation by the calculation unit 72.

[0048] As another example, the calculation unit 72 may calculate evacuation information from emergency information using a classifier (trained model) that has undergone machine learning. The classifier is generated, for example, by supervised learning using training data that indicates the relationship between alert information and evacuation information. Parameters of the classifier are stored in the storage unit 74.

[0049] (4.9.3) Presentation control section 1 controls the presentation unit 6. More specifically, the presentation control unit 73 controls the presentation unit 6 to present the emergency information acquired by the acquisition unit 5, the evacuation information acquired by the acquisition unit 5, and the evacuation information calculated by the calculation unit 72. The presentation control unit 73 controls the sound output unit 61 to present the emergency information and the evacuation information when an emergency occurs.

[0050] (5) Effects When emergency information is acquired from outside, the disaster prevention lighting device 1 according to the first embodiment displays evacuation information for evacuating in the event of an emergency in the emergency information. This allows the evacuation information for the event of an emergency acquired from outside to be displayed in the location where the disaster prevention lighting device 1 is installed, thereby reducing the risk of harm to people in the event of an emergency.

[0051] In the disaster prevention lighting device 1 according to the first embodiment, the emergency information acquired by the acquisition unit 5 is information transmitted from the emergency information transmission system 92 when an emergency occurs. This allows for correspondence to the emergency information transmitted from the emergency information transmission system 92, making it possible to present evacuation information early. As a result, it is possible to further reduce the risk of harm to people in the event of an emergency.

[0052] The disaster prevention lighting device 1 according to the first embodiment acquires emergency information from an input device 93 that accepts input of emergency information. This allows for acquisition of emergency information that is limited to a specific area and is not transmitted by the emergency information transmission system 92, for example, and therefore allows for more accurate presentation of evacuation information.

[0053] In the disaster prevention lighting device 1 according to the first embodiment, the presentation unit 6 presents, as evacuation information, at least one of the following: the type of disaster as an emergency, the type of harm to people caused by the disaster as an emergency, the time until people are harmed by the disaster as an emergency, the location of the evacuation site, the direction of the evacuation site, the distance to the evacuation site, the route to the evacuation site, and the travel time to the evacuation site. This allows specific information to be presented as evacuation information, thereby further reducing harm to people in the event of an emergency.

[0054] In the disaster prevention lighting device 1 according to the first embodiment, the light source 21 is turned on by the power supplied from the emergency power source 4 when the external power source 91 is stopped. This allows the disaster prevention lighting device 1 to function as an emergency lighting device. In other words, in an emergency situation other than the stoppage of the external power source 91, it is possible to ensure illuminance and to present evacuation information in the event of an emergency.

[0055] (6) Variations A modification of the first embodiment will be described below.

[0056] The disaster prevention lighting fixture 1 may not be a recessed lighting fixture, but may be a direct-mount lighting fixture that is directly attached to the ceiling.

[0057] The disaster prevention lighting fixture 1 is not limited to an emergency lighting fixture with a built-in battery as shown in FIG. 2, but may be a lighting fixture with a separate power source that receives power from an external power source 91.

[0058] In the disaster prevention lighting device 1, the light source 21 is a light emitting diode in the first embodiment, but may be a light emitting element such as an OLED (Organic Light Emitting Diode).

[0059] The disaster prevention lighting device 1 according to each of the above-described modifications also achieves the same effects as the disaster prevention lighting device 1 according to the first embodiment.

[0060] (Embodiment 2) The disaster prevention lighting device 1a according to the second embodiment differs from the disaster prevention lighting device 1 (see FIG. 2) according to the first embodiment in that it is an emergency light as shown in FIG.

[0061] (1) Disaster prevention lighting equipment As shown in Fig. 3, the disaster prevention lighting fixture 1a according to the second embodiment includes a lighting device 3a, an emergency power supply 4a, an acquisition unit 5, a presentation unit 6a, and a control circuit 7a. As shown in Figs. 4 and 5, the disaster prevention lighting fixture 1a also includes a display unit 2a, a flashing light source unit 27, and a housing 85b. Note that, with regard to the disaster prevention lighting fixture 1a according to the second embodiment, components that are the same as those of the disaster prevention lighting fixture 1 according to the first embodiment are denoted by the same reference numerals, and descriptions thereof will be omitted.

[0062] 3 and 4, the disaster prevention lighting device 1a is an emergency light for indicating an emergency exit or evacuation direction of a building. The disaster prevention lighting device 1a is installed on a ceiling material of an emergency exit or evacuation route of a building.

[0063] Like the disaster prevention lighting device 1 according to the first embodiment (see FIG. 1), the disaster prevention lighting device 1a is configured to acquire emergency information and evacuation information from an external source. In the example of FIG. 3, the disaster prevention lighting device 1 is configured to acquire emergency information and evacuation information from an emergency information transmission system 92 and an input device 93. More specifically, the disaster prevention lighting device 1a is configured to acquire emergency information from the emergency information transmission system 92 and acquire emergency information and evacuation information from the input device 93. Note that the disaster prevention lighting device 1a may be configured to acquire both the emergency information and the evacuation information from the emergency information transmission system 92. Alternatively, the disaster prevention lighting device 1a may be configured to acquire only one of the emergency information and the evacuation information from the input device 93.

[0064] (2) Components of disaster prevention lighting equipment Hereinafter, each component of the disaster prevention lighting device 1a according to the second embodiment will be described with reference to the drawings.

[0065] (2.1) Housing The housing 85 shown in FIG. 4 is formed in a rectangular parallelepiped shape. In the example of FIG. 4, the housing 85 has a main body 86 and a plate 87. The housing 85 (main body 86 and plate 87) is formed of a non-combustible material such as a steel plate. The main body 86 is formed in a box shape with an open front. The plate 87 has a main portion 871 and four side portions 872. The main portion 871 is formed in a rectangular flat plate shape. The four side portions 872 are formed so as to protrude rearward from the four sides of the main portion 871. The plate 87 is detachably attached to the main body 86 by a pair of attachment springs.

[0066] (2.2) Display unit 4 and 5, the display unit 2a includes a display panel 25 (guidance display section) and a light source unit 26. The display unit 2a is housed in a housing 85.

[0067] 4 is formed in the shape of a rectangular plate from a translucent synthetic resin material such as acrylic resin or polycarbonate resin. A pictogram indicating an emergency exit is drawn on the front surface of the display panel 25. A pictogram indicating an evacuation direction may also be drawn on the front surface of the display panel 25. In other words, the display panel 25 indicates an emergency exit or an evacuation direction.

[0068] As shown in FIGS. 3 and 5, the light source unit 26 includes a light source 261, a light guide member, and a case 262.

[0069] The light source 261 is, for example, one or more LEDs. The light guide member guides the light emitted from the light source 261. The case 262 houses the light source 261 and the light guide member.

[0070] The light guide member is formed in a columnar shape from a translucent synthetic resin material such as acrylic resin or polycarbonate resin. The longitudinal (left-right) end face of the light guide member faces the LED. That is, light emitted from the light source 261 enters the light guide member from the longitudinal end face of the light guide member and exits from the bottom surface of the light guide member. Then, the light exiting from the bottom surface of the light guide member enters the display panel 25 from the top surface of the display panel 25. The display panel 25 emits the light entering from the top surface out from the front surface.

[0071] The case 262 is formed in a rectangular parallelepiped shape with the left-right direction as the longitudinal direction. The LED of the light source 261 is disposed at an end in the longitudinal direction (left-right direction) of the case 262. An opening is provided on the bottom surface of the case 262 to radiate the light emitted from the light-guiding member to the outside of the case 262.

[0072] Display unit 2a is housed in housing 85 so that the front surface of display panel 25 is exposed through a rectangular window 851 provided in housing 85. Display unit 2a emits light from light source unit 26 onto the upper surface of display panel 25, causing the entire display panel 25 to emit light, thereby increasing the brightness of the front surface of display panel 25 and improving the visibility of pictograms.

[0073] (2.3) Flashing light source unit The flashing light source unit 27 includes a flashing light source 271, a lens 272, and an attachment member. The flashing light source 271 is, for example, an LED. The lens 272 controls the distribution of light emitted from the flashing light source 271. The flashing light source 271 and the lens 272 are attached to the attachment member. The flashing light source unit 27 is housed in the housing 85 by fixing the attachment member to a lower end portion of the inner bottom surface of the housing 85. The lens 272 protrudes outside the housing 85 through an insertion hole 852 provided in the center of the longitudinal direction (left-right direction) of the lower side wall of the housing 85.

[0074] (2.4) Lighting device 3, the lighting device 3a is configured to light the light source 261 of the light source unit 26 and the flashing light source 271 of the flashing light source unit 27. The lighting device 3a includes a power supply circuit 31, a charging circuit 32, a monitor lamp 35, a first lighting circuit 37, and a second lighting circuit 38. The lighting device 3a also includes a switch 391 and a diode 392.

[0075] The power supply circuit 31 converts an AC voltage supplied from an external power supply 91 into a DC voltage. The power supply circuit 31 includes, for example, a rectifier circuit and a boost chopper circuit.

[0076] The charging circuit 32 charges the emergency power supply 4 when power is supplied from the external power supply 91. More specifically, the charging circuit 32 operates using the DC voltage output from the power supply circuit 31, and supplies a charging current to the emergency power supply 4 to charge it.

[0077] The first lighting circuit 37 is configured to supply power to the light source 261 of the light source unit 26. More specifically, the first lighting circuit 37 has, for example, a step-up / step-down chopper circuit. The first lighting circuit 37 steps down the DC voltage supplied from the power supply circuit 31 and outputs the stepped-down voltage to the light source 261. The light source 261 is electrically connected in series between output terminals of the first lighting circuit 37. The first lighting circuit 37 also steps up the DC voltage supplied from the emergency power supply 4 and outputs the stepped-up voltage to the light source 261. Furthermore, the first lighting circuit 37 makes the DC current flowing through the light source 261 constant.

[0078] The second lighting circuit 38 is configured to supply power to the flashing light source 271 of the flashing light source unit 27. More specifically, the second lighting circuit 38 has, for example, a step-up / step-down chopper circuit. The second lighting circuit 38 steps up or steps down the DC voltage supplied from the emergency power supply 4 and outputs the voltage to the flashing light source 271. The flashing light source 271 is electrically connected in series between output terminals of the second lighting circuit 38. The second lighting circuit 38 also makes the DC current flowing through the flashing light source 271 constant. When the power supply from the external power source 91 is stopped, the second lighting circuit 38 lights up the flashing light source 271 with power discharged from the emergency power supply 4.

[0079] The switch 391 is inserted in the middle of the power supply path from the positive electrode of the emergency power supply 4 to the first lighting circuit 37 and the second lighting circuit 38. The switch 391 is a semiconductor switching element such as a MOSFET. That is, when the switch 391 is closed (on), power is supplied from the emergency power supply 4 to the first lighting circuit 37 and the second lighting circuit 38 via the power supply path, and the light source 261 and the flashing light source 271 are turned on. On the other hand, when the switch 391 is open (off), the power supply path from the emergency power supply 4 to the first lighting circuit 37 and the second lighting circuit 38 is cut off. A diode 392 for preventing backflow is electrically connected between the switch 391 and the first lighting circuit 37.

[0080] (2.5) Presentation section The presentation unit 6a shown in FIG. 3 includes a sound output unit 61a and a display unit 62. Similar to the presentation unit 6 of the first embodiment (see FIG. 1), the presentation unit 6a presents evacuation information. More specifically, when an emergency occurs, the presentation unit 6a presents evacuation information in accordance with instructions from a presentation control unit 73a (described later) in the control circuit 7a. The presentation unit 6a also presents emergency information. More specifically, when an emergency occurs, the presentation unit 6a presents evacuation information regarding evacuation from the emergency in accordance with instructions from the presentation control unit 73a (described later). Note that, regarding the presentation unit 6a of the second embodiment, descriptions of the same configurations and functions as those of the presentation unit 6 of the first embodiment will be omitted.

[0081] The sound output unit 61a has an audio output function of outputting emergency information and evacuation information by audio. The sound output unit 61a includes a speaker 611 and a drive circuit as shown in FIG. 5. The speaker 611 is housed in a housing 85. A window 853 for the speaker 611 is opened to the left of the window 851 in the housing 85. The window 853 is covered with a cover 854. The cover 854 has a number of holes penetrating in the thickness direction of the cover 854. That is, the sound output from the speaker 611 is emitted to the outside of the housing 85 through these many holes. The drive circuit drives the speaker 611. More specifically, the drive circuit amplifies an audio signal from the control circuit 7a and outputs the amplified audio signal to the speaker 611, thereby driving the speaker 611.

[0082] The display unit 62 is an image display device having a display function for displaying emergency information and evacuation information. The display unit 62 includes a monitor 63 as shown in FIG. 4 and a drive circuit. The monitor 63 is housed in a housing 85. A window 855 for the monitor 63 is opened below a window 851 in the housing 85. The drive circuit drives the monitor 63.

[0083] When the disaster prevention lighting device 1a receives a flashing instruction signal from an external emergency light signal device, the presentation unit 6a flashes the flashing light source to enhance the guidance effect. Also, when the disaster prevention lighting device 1a receives an instruction signal from the emergency light signal device, the presentation unit 6a outputs a guidance sound (for example, a voice message such as "Emergency exit is this way") from the sound output unit 61a described below to enhance the guidance effect.

[0084] Furthermore, the presentation unit 6a presents, as evacuation information, at least one of the following: the type of disaster, the type of harm that people will suffer as a result of the disaster, the time until people will suffer harm as a result of the disaster, the location of the evacuation site, the direction of the evacuation site, the distance to the evacuation site, the route to the evacuation site, and the travel time to the evacuation site.

[0085] (2.6) Control circuit As shown in Fig. 3, the control circuit 7a includes a lighting control unit 71a, a calculation unit 72a, a presentation control unit 73a, and a storage unit 74a. The control circuit 7a includes, as its main components, a computer (including a microcomputer) equipped with a processor and a memory. The computer functions as the control circuit 7a when the processor executes an appropriate program. The program may be pre-recorded in the memory, or may be provided via a telecommunications line such as the Internet, or recorded on a non-transitory recording medium such as a memory card. The storage unit 74a stores the same information as the storage unit 74 of the first embodiment.

[0086] (2.6.1) Lighting control section 3 controls the first lighting circuit 37 and the second lighting circuit 38. More specifically, the lighting control unit 71a compares the output voltage of the power supply circuit 31 with a threshold value, and determines that the power supply from the external power source 91 has stopped (a power outage) if the output voltage is less than the threshold value. If the lighting control unit 71a determines that the external power source 91 is not experiencing a power outage, it turns off the switch 391, and if it determines that the external power source 91 is experiencing a power outage, it turns on the switch 391.

[0087] (2.6.2) Arithmetic section 3, like the calculation unit 72 (see FIG. 1) of the first embodiment, calculates evacuation information using the emergency information input from the acquisition unit 5. Then, the calculation unit 72a outputs the evacuation information, which is the calculation result, to the presentation control unit 73a.

[0088] (2.6.3) Presentation control section 3 controls the presentation unit 6a. More specifically, the presentation control unit 73a controls the presentation unit 6a to present emergency information acquired by the acquisition unit 5, evacuation information acquired by the acquisition unit 5, and evacuation information calculated by the calculation unit 72a. The presentation control unit 73a controls the sound output unit 61a and the display unit 62 to present at least one of the emergency information and the evacuation information when an emergency occurs.

[0089] (3) Operation The operation of the disaster prevention lighting device 1a according to the second embodiment will be described below with reference to FIGS. 6A to 6E.

[0090] In the disaster prevention lighting device 1a, when the acquisition unit 5 acquires emergency information indicating the occurrence of a tsunami, the presentation control unit 73a of the control circuit 7a controls the presentation unit 6a to present evacuation information for evacuating in the event of a tsunami. For example, as shown in FIG. 6A, the display unit 62 of the presentation unit 6a displays evacuation information such as "Tsunami occurred (10m) arriving in 20 minutes" and "Risk of drowning." The sound output unit 61a of the presentation unit 6a outputs the evacuation information by voice. By presenting such evacuation information when a tsunami occurs, it is possible to inform people that a tsunami has occurred and that they will be in danger if they do not begin evacuation.

[0091] Furthermore, in the disaster prevention lighting device 1a, when the acquisition unit 5 acquires emergency information indicating that an earthquake has occurred, the presentation control unit 73a controls the presentation unit 6a to present evacuation information for evacuating in response to the occurrence of an earthquake. For example, as shown in FIG. 6B , the display unit 62 of the presentation unit 6a displays evacuation information such as "Earthquake occurred (seismic intensity 6) arriving in 2 minutes" and "Risk of injury from falling objects." The sound output unit 61a of the presentation unit 6a outputs the evacuation information by voice. By presenting the above-mentioned evacuation information when an earthquake occurs, it is possible to inform people that an earthquake has occurred and that they will be in danger if they do not begin evacuation.

[0092] As described above, when an emergency occurs, the presentation unit 6a presents evacuation information to inform people that an emergency has occurred and that they will be in danger if they do not start evacuation, thereby encouraging people to start evacuation behavior.

[0093] Here, the presentation unit 6a switches the presentation content under the control of the presentation control unit 73a of the control circuit 7a.

[0094] The presentation unit 6a presents evacuation information as shown in Fig. 6A, and then presents evacuation information as shown in Fig. 6C. More specifically, the display unit 62 of the presentation unit 6a presents evacuation information as shown in Fig. 6A, and then displays evacuation information such as "Turn right at the exit to Evacuation Shelter A" and "1 km, 15 minutes walk from here." By switching to evacuation information such as the above when a tsunami occurs, it is possible to show people how to evacuate and the time required for evacuation.

[0095] Moreover, the presentation unit 6a presents evacuation information as shown in Fig. 6B, and then presents evacuation information as shown in Fig. 6D. More specifically, the display unit 62 of the presentation unit 6a presents evacuation information as shown in Fig. 6C, and then displays evacuation information such as "Evacuate to the on-site grounds" and "100 m, 5 minutes walk from here." By switching to evacuation information such as those described above when an earthquake occurs, people who have begun evacuation can be reliably evacuated.

[0096] As described above, when an emergency occurs, the presentation unit 6a can switch the evacuation information to show people how to evacuate and the time required for evacuation, thereby ensuring that people who have started to evacuate can evacuate reliably.

[0097] The sound output unit 61a can also output a large amount of evacuation information by voice in a short period of time by switching the evacuation information to be output by voice under the control of the presentation control unit 73a.

[0098] In some emergency situations, the direction in which the disaster prevention lighting device 1a is installed may not be the direction suitable for evacuation. In this case, the presentation unit 6a presents, as evacuation information, that the evacuation direction is different. More specifically, as shown in FIG. 6E, the display unit 62 of the presentation unit 6a displays "X" or "Opposite Direction," indicating that the direction in which the disaster prevention lighting device 1a is installed is not the evacuation direction. The sound output unit 61a of the presentation unit 6a outputs, by voice, the evacuation information that the evacuation direction is different.

[0099] (4) Effects In the disaster prevention lighting device 1a according to the second embodiment, the display unit 6a displays, as evacuation information, that the direction is different from the evacuation direction. This actively displays that the direction in which the disaster prevention lighting device 1a is installed is not the evacuation direction, thereby reducing the likelihood of people moving in the wrong direction. As a result, evacuation can be more reliably carried out, thereby further reducing the risk of injury to people in the event of an emergency.

[0100] In the disaster prevention lighting device 1a according to the second embodiment, the flashing light source 271 flashes when emergency information is acquired by the acquisition unit 5. This visually indicates the urgency, and can encourage people to start evacuation actions.

[0101] The disaster prevention lighting device 1a according to the second embodiment lights up a display panel 25 (guidance display unit) that indicates an emergency exit or evacuation direction. This allows the disaster prevention lighting device 1a to function as an emergency light. In other words, in an emergency other than a power outage of the external power source 91, the disaster prevention lighting device 1a can display an emergency exit or evacuation direction and provide evacuation information in response to the occurrence of an emergency.

[0102] (Embodiment 3) As shown in Fig. 8, the disaster prevention lighting device 1b according to the third embodiment differs from the disaster prevention lighting device 1a according to the second embodiment (see Fig. 4) in that the display unit 2b and the display section 62b of the presenting section 6b are integrally provided. Note that, with respect to the disaster prevention lighting device 1b according to the third embodiment, components that are the same as those of the disaster prevention lighting device 1a according to the second embodiment will be denoted by the same reference numerals and will not be described.

[0103] (1) Disaster prevention lighting equipment As shown in Fig. 7, the disaster prevention lighting device 1b according to the third embodiment includes a lighting device 3b, an emergency power supply 4b, an acquisition unit 5, a presentation unit 6b, and a control circuit 7b. As shown in Fig. 8, the disaster prevention lighting device 1b also includes a display unit 2b, a flashing light source unit 27, and a housing 85. Note that, with regard to the disaster prevention lighting device 1b according to the third embodiment, components that are the same as those of the disaster prevention lighting device 1a according to the second embodiment are denoted by the same reference numerals, and description thereof will be omitted.

[0104] The disaster prevention lighting device 1b is an emergency light for indicating an emergency exit or evacuation direction of a building, similar to the disaster prevention lighting device 1b according to the second embodiment (see FIGS. 3 and 4). The disaster prevention lighting device 1b is installed on the ceiling material of an emergency exit or evacuation route of a building.

[0105] The disaster prevention lighting device 1b is configured to acquire emergency information and evacuation information from outside, similar to the disaster prevention lighting device 1a according to the second embodiment (see FIG. 3). In the example of FIG. 8, the disaster prevention lighting device 1 is configured to acquire emergency information and evacuation information from an emergency information transmission system 92 and an input device 93.

[0106] (2) Components of disaster prevention lighting equipment Hereinafter, each component of the disaster prevention lighting device 1b according to the third embodiment will be described with reference to the drawings.

[0107] (2.1) Housing 8 is formed in a rectangular parallelepiped shape and includes a main body 86b and a plate 87b. The plate 87b has a main portion 871 and four side portions 872, similar to the plate 87 of the second embodiment (see FIG. 4).

[0108] (2.2) Display unit 8 includes a monitor 28 (guidance display unit). Display unit 2b displays pictograms indicating emergency exits on monitor 28. Display unit 2b may also display pictograms indicating evacuation directions on monitor 28. Display unit 2b is housed in housing 85b such that monitor 28 is exposed from a rectangular window 856 provided in housing 85b.

[0109] (2.3) Lighting device 7, the lighting device 3b is configured to light up the flashing light source 271 of the flashing light source unit 27. The lighting device 3b includes a power supply circuit 31, a charging circuit 32, a monitor lamp 35, a second lighting circuit 38, and a switch 391.

[0110] (2.4) Presentation part The presentation unit 6b shown in FIG. 7 includes a sound output unit 61b and a display unit 62b, similar to the presentation unit 6a of the second embodiment (see FIG. 3). Similar to the presentation unit 6a of the second embodiment, the presentation unit 6b presents evacuation information. More specifically, in the event of an emergency, the presentation unit 6b presents evacuation information in accordance with instructions from a presentation control unit 73b (described later) in the control circuit 7b. The presentation unit 6b also presents emergency information. More specifically, in the event of an emergency, the presentation unit 6b presents evacuation information regarding evacuation from the emergency in accordance with instructions from the presentation control unit 73b (described later). Note that, regarding the presentation unit 6b of the third embodiment, descriptions of the same configurations and functions as those of the presentation unit 6a of the second embodiment will be omitted.

[0111] The display unit 62b has a display function for displaying emergency information and evacuation information. The display unit 62b includes a monitor 63b and a drive circuit as shown in Fig. 8. The monitor 63b is housed in a housing 85b. The housing 85b has a window 856 for the monitor 28 of the display unit 2b and the monitor 63b of the display unit 62b.

[0112] Similar to the presentation unit 6a of the second embodiment, the presentation unit 6b presents, as evacuation information, at least one of the following: the type of disaster, the type of harm that people will suffer as a result of the disaster, the time until people will suffer harm as a result of the disaster, the location of the evacuation site, the direction of the evacuation site, the distance to the evacuation site, the route to the evacuation site, and the travel time to the evacuation site.

[0113] (2.5) Control circuit As shown in FIG. 7, the control circuit 7b includes a lighting control unit 71b, a calculation unit 72b, a presentation control unit 73b, and a storage unit 74b. The control circuit 7b mainly includes a computer (including a microcomputer) equipped with a processor and a memory. The computer functions as the control circuit 7b when the processor executes an appropriate program. The program may be pre-recorded in the memory, or may be provided via a telecommunications line such as the Internet, or recorded on a non-transitory recording medium such as a memory card. The storage unit 74b stores the same information as the storage unit 74a of the second embodiment.

[0114] (2.5.1) Lighting control section 7 controls the second lighting circuit 38. More specifically, the lighting control unit 71b compares the output voltage of the power supply circuit 31 with a threshold value, and determines that the power supply from the external power source 91 has stopped (power outage) if the output voltage is less than the threshold value. If the lighting control unit 71a determines that the external power source 91 is not experiencing a power outage, it turns off the switch 391, and if it determines that the external power source 91 is experiencing a power outage, it turns on the switch 391.

[0115] (2.5.2) Arithmetic section 7, like the calculation unit 72a (see FIG. 3) of the second embodiment, calculates evacuation information using the emergency information input from the acquisition unit 5. Then, the calculation unit 72b outputs the evacuation information, which is the calculation result, to the presentation control unit 73b.

[0116] (2.5.3) Presentation control section 7 controls the presentation unit 6b, similar to the presentation control unit 73a (see FIG. 3) of the second embodiment. More specifically, the presentation control unit 73b controls the presentation unit 6b to present emergency information and evacuation information. When an emergency occurs, the presentation control unit 73b controls the sound output unit 61b and the display unit 62b to present at least one of the emergency information and the evacuation information.

[0117] (3) Operation The operation of the disaster prevention lighting device 1b according to the third embodiment will be described below with reference to FIGS. 9A to 9D.

[0118] In disaster prevention lighting device 1b, when acquisition unit 5 acquires emergency information indicating the occurrence of a tsunami, presentation control unit 73b of control circuit 7b controls presentation unit 6b to present evacuation information as shown in FIG. 9A. As shown in FIG. 9A, display unit 62b of presentation unit 6b displays the evacuation information "Tsunami Occurred" together with a pictogram. Display unit 62b then switches the display content to display the evacuation information "Risk of Drowning" as shown in FIG. 9B. Display unit 62b then switches the display content to display the evacuation information "Arrive in 20 minutes." As described above, display unit 62b can display a large amount of evacuation information even in a small display space by switching the evacuation information displayed while displaying the pictograms under the control of presentation control unit 73b.

[0119] The sound output unit 61b of the presentation unit 6b can also output a large amount of evacuation information by voice in a short period of time by switching the evacuation information in accordance with the control of the presentation control unit 73b.

[0120] In some emergency situations, the direction in which the disaster prevention lighting device 1b is installed may not be the appropriate direction for evacuation. In this case, the presentation unit 6b presents evacuation information indicating that the evacuation direction is different. More specifically, as shown in FIG. 9D , the display unit 62b of the presentation unit 6b displays an "X" instead of a pictogram to indicate that the direction in which the disaster prevention lighting device 1a is installed is not the appropriate evacuation direction, and further displays "opposite direction." The sound output unit 61b of the presentation unit 6b outputs evacuation information indicating that the evacuation direction is different by voice.

[0121] (3) Effects In the disaster prevention lighting device 1b according to the third embodiment, the monitor 28 of the display unit 2b and the monitor 63b of the display section 62b of the presentation section 6b are integrally provided. This allows evacuation information to be displayed more clearly in the event of an emergency. In particular, if the direction in which the disaster prevention lighting device 1b is installed is not a direction suitable for evacuation, pictograms indicating the evacuation exit or evacuation direction can be prevented from being displayed. As a result, it is possible to more clearly indicate that the direction in which the disaster prevention lighting device 1b is installed is not a suitable evacuation direction.

[0122] (Embodiment 4) In the fourth embodiment, a disaster prevention system 100 as shown in FIG. 10 will be described.

[0123] (1) Composition 10, the disaster prevention system 100 according to the fourth embodiment includes a plurality of (two in FIG. 10) disaster prevention lighting devices 1c and a control device 101. In other words, the disaster prevention system 100 is a system in which a single control device 101 controls a plurality of disaster prevention lighting devices 1c.

[0124] (1.1) Control device The control device 101 shown in FIG. 10 controls a plurality of disaster prevention lighting devices 1c. The control device 101 includes an acquisition unit 5c, a calculation unit 72c, a presentation control unit 73c, and a storage unit 74c. The control device 101 includes, as its main components, a computer (including a microcomputer) equipped with a processor and memory. The computer functions as the control device 101 when the processor executes an appropriate program. The program may be pre-recorded in the memory, or may be provided via a telecommunications line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

[0125] The acquisition unit 5c acquires emergency information relating to the occurrence of an emergency from an external source. More specifically, the acquisition unit 5c acquires the emergency information from an emergency information transmission system 92 (see FIG. 1) and an input device 93 (see FIG. 1).

[0126] The calculation unit 72c calculates evacuation information using the emergency information. More specifically, because the multiple disaster prevention lighting devices 1c are installed in different locations, the calculation unit 72c calculates evacuation information for each disaster prevention lighting device 1c. The calculation unit 72c then outputs the evacuation information to the presentation control unit 73c.

[0127] The presentation control unit 73c controls the presentation unit 6c of each of the plurality of disaster prevention lighting devices 1c. The presentation control unit 73c has a function of controlling each of the plurality of disaster prevention lighting devices 1c to present evacuation information regarding evacuation in response to an emergency situation based on the emergency information acquired by the acquisition unit 5c. More specifically, the presentation control unit 73c generates evacuation information regarding evacuation in response to the emergency information acquired by the acquisition unit 5c for each of the disaster prevention lighting devices 1c. The presentation control unit 73c then outputs the evacuation information to each of the plurality of disaster prevention lighting devices 1c via wired or wireless communication.

[0128] The storage unit 74c stores information used by the calculation unit 72c. The storage unit 74c stores information for each disaster prevention lighting device 1c.

[0129] (1.2) Disaster prevention lighting equipment As shown in Fig. 10, each of the plurality of disaster prevention lighting fixtures 1c includes a light source unit 2, a lighting device 3, a display unit 6c, and a lighting control unit 71c. Each of the plurality of disaster prevention lighting fixtures 1c is configured to be installed inside a building. The light source unit 2, the lighting device 3, and the lighting control unit 71c are the same as the light source unit 2, the lighting device 3, and the lighting control unit 71 (see Fig. 1) of the first embodiment. With regard to the disaster prevention lighting fixture 1c of the fourth embodiment, components that are the same as those of the disaster prevention lighting fixture 1 of the first embodiment (see Fig. 1) are denoted by the same reference numerals, and description thereof will be omitted.

[0130] 10 presents evacuation information regarding evacuation in response to an emergency in the emergency information acquired by the acquisition unit 5c. More specifically, when an emergency occurs, the presentation unit 6c presents the evacuation information in accordance with an instruction from the presentation control unit 73c.

[0131] (2) Effects In the disaster prevention system 100 according to the fourth embodiment, when emergency information is acquired by the control device 101, evacuation information for evacuating in response to the emergency in the emergency information is displayed by the disaster prevention lighting device 1c. This allows the evacuation information for the emergency in response to the emergency information acquired from outside to be displayed in the location where the disaster prevention lighting device 1c is installed, thereby reducing the risk of harm to people in the event of an emergency.

[0132] (3) Variations In the disaster prevention system 100, it is not limited to the case where both the calculation unit 72c and the presentation control unit 73c are provided in the control device 101. As a modification of the fourth embodiment, the calculation unit 72c and the presentation control unit 73c may be provided in each disaster prevention lighting device 1c. As another modification of the fourth embodiment, the calculation unit 72c may be provided in the control device 101, and the presentation control unit 73c may be provided in each disaster prevention lighting device 1c.

[0133] The number of disaster prevention lighting devices 1c in the disaster prevention system 100 is not limited to two. The disaster prevention system 100 may include the control device 101 and only one disaster prevention lighting device 1c, or three or more disaster prevention lighting devices 1c.

[0134] The disaster prevention system 100 is not limited to including a lighting device similar to the disaster prevention lighting device 1 according to the first embodiment as the disaster prevention lighting device 1c. The disaster prevention system 100 may include a disaster prevention lighting device 1 according to a modification of the first embodiment as the disaster prevention lighting device 1c. Alternatively, the disaster prevention system 100 may include the disaster prevention lighting device 1a according to the second embodiment or the disaster prevention lighting device 1b according to the third embodiment.

[0135] The disaster prevention system 100 according to each of the above-described modifications also provides the same effects as the disaster prevention system 100 according to the fourth embodiment.

[0136] The above-described embodiments and modifications are merely a part of the various embodiments and modifications of the present invention. Furthermore, the embodiments and modifications can be modified in various ways depending on the design, etc., as long as the object of the present invention can be achieved.

[0137] (Aspect) The present specification discloses the following aspects.

[0138] The disaster prevention lighting device (1; 1a; 1b) according to the first aspect is a device installed inside a building. The disaster prevention lighting device (1; 1a; 1b) includes an acquisition unit (5) and a presentation unit (6; 6a; 6b). The acquisition unit (5) acquires emergency information from outside. The emergency information is information relating to the occurrence of an emergency. The presentation unit (6; 6a; 6b) presents evacuation information. The evacuation information is information relating to evacuation in response to the emergency of the emergency information acquired by the acquisition unit (5).

[0139] According to the disaster prevention lighting device (1; 1a; 1b) of the first aspect, evacuation information for emergencies obtained from external emergency information can be displayed in the location where the disaster prevention lighting device (1; 1a; 1b) is installed, thereby reducing the risk of harm to people in the event of an emergency.

[0140] In the disaster prevention lighting device (1; 1a; 1b) according to the second aspect, in the first aspect, the emergency information is information transmitted from an emergency information transmission system (92) when an emergency occurs.

[0141] The disaster prevention lighting device (1; 1a; 1b) according to the second aspect can respond to emergency information transmitted from the emergency information transmission system (92), and therefore can provide evacuation information early, thereby further reducing the risk of injury to people in the event of an emergency.

[0142] In the disaster prevention lighting device (1; 1a; 1b) according to the third aspect, in the first or second aspect, the acquisition unit (5) acquires emergency information from an input device (93). The input device (93) accepts input of the emergency information.

[0143] The disaster prevention lighting device (1; 1a; 1b) according to the third aspect can acquire emergency information limited to a certain area that is not transmitted by the emergency information transmission system (92), for example, and therefore can present evacuation information more accurately.

[0144] In the disaster prevention lighting device (1; 1a; 1b) according to the fourth aspect, in any one of the first to third aspects, the presentation unit (6; 6a; 6b) has at least one of a display function for displaying evacuation information and an audio output function for outputting the evacuation information by audio.

[0145] According to the disaster prevention lighting device (1; 1a; 1b) of the fourth aspect, evacuation information can be more reliably presented.

[0146] In the disaster prevention lighting device (1; 1a; 1b) according to the fifth aspect, in any one of the first to fourth aspects, the presentation unit (6; 6a; 6b) presents, as evacuation information, at least one of the following: the type of disaster as an emergency, the type of harm that people will suffer as a result of the disaster as an emergency, the time until people will suffer harm as a result of the disaster as an emergency, the location of the evacuation site, the direction of the evacuation site, the distance to the evacuation site, the route to the evacuation site, and the travel time to the evacuation site.

[0147] According to the disaster prevention lighting device (1; 1a; 1b) of the fifth aspect, specific information can be presented as evacuation information, and therefore, it is possible to further reduce the risk of harm to people in the event of an emergency.

[0148] In the disaster prevention lighting device (1a; 1b) according to the sixth aspect, in the fifth aspect, the presenting unit (6a; 6b) presents, as evacuation information, that the direction is different from the evacuation direction.

[0149] The disaster prevention lighting device (1a; 1b) according to the sixth aspect can actively indicate that the direction in which the disaster prevention lighting device (1a; 1b) is installed is not the evacuation direction, thereby reducing the likelihood of people moving in the wrong direction. As a result, evacuation can be more reliably carried out, thereby further reducing the risk of injury to people in the event of an emergency.

[0150] The disaster prevention lighting device (1a; 1b) according to a seventh aspect is any one of the first to sixth aspects, and further includes a flashing light source (271). The flashing light source (271) flashes when emergency information is acquired by the acquisition unit (5).

[0151] According to the disaster prevention lighting device (1a; 1b) of the seventh aspect, it is possible to visually indicate an emergency, and therefore to encourage people to start evacuation actions.

[0152] The disaster prevention lighting device (1) according to an eighth aspect is any one of the first to seventh aspects, further including a light source (21) and a lighting circuit (33). The lighting circuit (33) lights the light source (21) with power supplied from the emergency power supply (4) when the external power supply (91) is stopped.

[0153] The disaster prevention lighting device (1) according to the eighth aspect can function as an emergency lighting device. In other words, in an emergency situation other than a power outage of the external power source (91), the disaster prevention lighting device (1) can ensure illumination and provide evacuation information in the event of an emergency.

[0154] The disaster prevention lighting device (1a; 1b) according to a ninth aspect is any one of the first to seventh aspects, and further includes a guidance display unit (display panel 25; monitor 28) and a lighting circuit (first lighting circuit 37). The guidance display unit indicates an emergency exit or an evacuation direction. The lighting circuit lights up the guidance display unit.

[0155] The disaster prevention lighting device (1a; 1b) according to the ninth aspect can function as an emergency guide light. In other words, in an emergency situation other than a power outage of the external power source (91), the disaster prevention lighting device (1a; 1b) can indicate an emergency exit or evacuation direction and provide evacuation information in response to the occurrence of the emergency.

[0156] The disaster prevention lighting device (1; 1a; 1b) according to a tenth aspect is any one of the first to ninth aspects, and further includes a calculation unit (72; 72a; 72b). The calculation unit (72; 72a; 72b) calculates evacuation information using the emergency information acquired by the acquisition unit (5).

[0157] According to the disaster prevention lighting device (1; 1a; 1b) of the tenth aspect, it is possible to present highly accurate evacuation information according to the content of the emergency information.

[0158] In a disaster prevention lighting device (1; 1a; 1b) according to an eleventh aspect, in any one of the first to tenth aspects, the presenting unit (6; 6a; 6b) presents emergency information acquired by the acquiring unit (5).

[0159] According to the disaster prevention lighting device (1; 1a; 1b) of the eleventh aspect, both emergency information and evacuation information can be presented, so that the state of the emergency can be more clearly notified.

[0160] A disaster prevention system (100) according to a twelfth aspect includes a disaster prevention lighting device (1c) and a control device (101). The disaster prevention lighting device (1c) is installed in a building. The control device (101) controls the disaster prevention lighting device (1c). The control device (101) has an acquisition unit (5c). The acquisition unit (5c) acquires emergency information from outside. The emergency information is information relating to the occurrence of an emergency. The disaster prevention lighting device (1c) has a presentation unit (6c). The presentation unit (6c) presents evacuation information. The evacuation information is information relating to evacuation in response to the emergency of the emergency information acquired by the acquisition unit (5c).

[0161] According to the disaster prevention system (100) of the twelfth aspect, evacuation information for emergencies obtained from external sources can be displayed in the location where the disaster prevention lighting device (1c) is installed, thereby reducing the risk of harm to people in the event of an emergency. [Explanation of symbols]

[0162] 1, 1a, 1b, 1c Disaster prevention lighting equipment 21 Light source 25 Display panel (guidance display section) 271 Flashing Light Source 28 Monitor (guidance display unit) 33 Lighting circuit 37 First lighting circuit 4,4a,4b Emergency power supply 5,5c acquisition part 6,6a,6b,6c Presentation section 72,72a,72b,72c Arithmetic unit 92 Emergency Information Transmission System 93 Input Devices 100 Disaster Prevention System 101 Control device

Claims

1. A disaster prevention lighting device installed in a building, A guidance display unit that displays pictograms indicating emergency exits; an acquisition unit that acquires emergency information relating to the occurrence of an emergency from an external source; a presentation unit for presenting evacuation information regarding evacuation in the emergency situation, When the acquisition unit acquires the emergency information, if the emergency exit indicated by the pictogram normally displayed by the guidance display unit is not suitable for evacuation in the emergency situation, a figure indicating that the direction ahead when facing the guidance display unit is not an evacuation direction is displayed on the guidance display unit. Disaster prevention lighting equipment.

2. The emergency information is information transmitted from an emergency information transmission system when the emergency occurs. The disaster prevention lighting device according to claim 1.

3. the acquisition unit acquires the emergency information from an input device that accepts input of the emergency information.

3. The disaster prevention lighting device according to claim 1 or 2.

4. The presentation unit further has a voice output function of outputting the evacuation information by voice. The disaster prevention lighting device according to any one of claims 1 to 3.

5. The evacuation information is presented on the presentation unit at least one of a type of disaster as the emergency situation, a type of harm to people due to the disaster as the emergency situation, a time until people will be harmed by the disaster as the emergency situation, a location of an evacuation site, a direction to the evacuation site, a distance to the evacuation site, a route to the evacuation site, and a travel time to the evacuation site. The disaster prevention lighting device according to any one of claims 1 to 4.

6. The emergency information acquisition unit may further include a flashing light source that flashes when the emergency information is acquired by the acquisition unit. The disaster prevention lighting device according to any one of claims 1 to 5.

7. A light source and and a lighting circuit that lights the light source with power supplied from an emergency power supply when the external power supply is stopped. The disaster prevention lighting device according to any one of claims 1 to 6.

8. The emergency information acquired by the acquisition unit is presented to the presentation unit. The disaster prevention lighting device according to any one of claims 1 to 7.

9. A disaster prevention lighting device installed in a building; A disaster prevention system comprising: a control device that controls the disaster prevention lighting device; The control device an acquisition unit that acquires emergency information relating to the occurrence of an emergency from an external source; The disaster prevention lighting device is A guidance display unit that displays pictograms indicating emergency exits; a presentation unit for presenting evacuation information regarding evacuation in the emergency situation, When the acquisition unit acquires the emergency information, if the emergency exit indicated by the pictogram normally displayed by the guidance display unit is not suitable for evacuation in the emergency situation, a figure indicating that the direction ahead when facing the guidance display unit is not an evacuation direction is displayed on the guidance display unit. Disaster prevention system.

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