JP2015004921A - Variable display function signboard device and display operation method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a variable display function signboard device that normally displays information as advertisements, signboards, guidance and signs and can present evacuation guidance display or a specific message in an emergency, and a display operation method for presenting effective evacuation guidance.SOLUTION: The variable display function signboard device comprises a display unit (A) essentially comprising an electronic paper, an illumination unit (B), and wireless control means (C), wherein a radio wave frequency band used by the wireless control means (C) is either a 920 MHz band or a 2.4 GHz band. Display on the display unit (A) is varied by control via the wireless control means (C): in a normal situation, an advertisement or a guide is displayed; and at a time of disaster, evacuation guidance or disaster information is displayed. Further, a plurality of the variable display function signboard devices disposed in an evacuation route is operated in coordination by computer control.

Description

  The present invention relates to a variable display function signboard device capable of changing the visual display of a display unit by wireless control from a computer, and a display operation method thereof. More specifically, the present invention is used for signs, guidance displays, signs, vending machines, road furniture, etc., and usually displays signs, advertisements, guidance displays, signs, etc., and is a computer for disaster prevention centers. By changing the visual display of the display unit, mainly electronic paper, by radio control from the variable display function signboard device that can display evacuation guidance display and disaster information, and this variable display function signboard device at the time of disaster, disaster prevention The present invention relates to a display operation method for performing appropriate information provision and evacuation guidance according to a local area by wireless control from a center computer.

  Public facilities such as libraries, playgrounds, parks, government offices, schools, corporate buildings and factories, indoor and outdoor commercial facilities and stores, transportation concourses, underground shopping malls, signs, advertisements, information displays, and advertisement displays Many signboards, information displays and signs, such as vending machines with signs, signs for bus stops and taxi stands, signboards installed on telephone poles, etc., are integrated into daily life. These are often accompanied by internal or external lighting, and at night, they are lit to bring light to the surrounding area and play a role in local crime prevention. Furthermore, these days, it is also expected to serve as a guide for evacuation guidance in the event of a disaster. In the event of a disaster, a special signboard is required to guide people to a wide-area evacuation site or temporary evacuation site designated by the government. Therefore, it is necessary to arrange a large number of signboards dedicated to evacuation guidance, and there are some areas that cannot be adequately addressed due to problems such as securing the installation location and landscape. Especially in the event of a disaster, real-time crisis information such as road disruptions due to the collapse or collapse of buildings, gas leaks, fires, dangerous areas due to outflows of fuel and radioactive materials, and tornadoes and tsunamis, etc. It is important to communicate with.

  Disaster prevention radio broadcasting is used as a method to prompt local residents to evacuate in the event of a disaster. However, disaster prevention radio broadcasting is effective for evacuation advisories for local areas, mainly by repeating short voice messages, but it is inappropriate as a means of transmitting specific information and instructions without misunderstanding. In addition, television and radio are inappropriate as means for providing specific evacuation information for local areas such as municipalities, neighborhood associations, and buildings such as schools.

  The use of digital signage using a plasma display, a liquid crystal display, a video projector, an electric bulletin board or the like as a display as a signboard is spreading. These digital signage signs can be easily changed by replacing the data. Therefore, if the evacuation guidance information corresponding to the installation location is displayed when a disaster occurs, it will be set for each district. It is possible to guide the route to the evacuation site in detail. However, digital signage requires a lot of power to continuously display, and in the event of a power outage for more than one day, there is a concern that it will lack stability such as the continuous provision of disaster information after evacuation guidance. was there.

  In recent years, electronic paper has been put into practical use as a medium capable of switching image information, and its application to safety information display on a signboard installed at a refuge in the event of a disaster is being studied. (See, for example, Patent Document 1) In addition, an application as a guidance display that can be switched depending on the situation has been proposed. (See, for example, Patent Document 2) Electronic paper has very little display power for image and text information, and does not require power for display hold. It is usually used as a signboard and is suitable for rewriting to evacuation guidance display at the time of disaster. ing. Patent Documents 1 and 2 are signboards installed by local governments at evacuation centers managed by local governments, and guidance displays installed by organizations operating the facilities at specific facilities such as airports. No. However, signboards that are always installed outdoors may be constrained by securing installation locations or landscape issues, and are distributed with sufficient density to guide local residents appropriately depending on the situation. There is a drown that cannot be placed. In addition, as a method for exchanging control signals for switching the display of the electronic paper, a mobile phone line or a wireless LAN is exemplified. However, if the amount of communication increases in a mobile phone line during a disaster, reliable communication may not be performed. In a wireless LAN, outdoor use may be restricted depending on the radio wave band, and in a wireless LAN, the connection is always maintained, so power is always consumed and power loss increases in the long term. In addition, there is a problem that in order to form a network in a wide area of a municipal unit, a large number of access points are installed in the area, and each access point also requires its own power source.

  As described above, signs, guidance displays, and signs are usually displayed. When a disaster occurs, useful information is provided according to the local unit and local environment and the optimal evacuation route is locally controlled by wireless control. No signage device or display operating method that can be displayed and consumes less power has been proposed.

JP 2010-72913 A JP 2009-3590 A

  The present invention normally performs display as a signboard, guidance display, advertisement, and sign, and in a specific situation such as a disaster, the evacuation guidance display and the specific message display for each local area are performed by a specific wireless control means. Provides a variable display function signboard device that controls the variable display function signboard device using the, and performs appropriate evacuation guidance according to the situation and local area in real time with low power consumption, and its display operation method It is something to try.

  In order to solve the above-mentioned problems, the inventors of the present invention have a signboard device including a display unit (A) mainly composed of electronic paper, a lighting unit (B), and wireless control means (C), and wireless control means (C ) Is used in the 920 MHz band and 2.4 GHz band to form a network of signboards distributed and deployed in the local area without requiring registration or license for the use of radio waves. The power required for switching the display, maintaining the display, and maintaining the network connection can be kept to a minimum, and by controlling from the wireless control means (C), an arbitrary display can be displayed at an arbitrary timing. In particular, it has been found that a plurality of evacuation routes can be arranged on the evacuation route and interlocked with a computer to enable safer evacuation guidance, and the present invention is completed. It led to the cell.

  That is, the variable display function signboard device of the present invention is a signboard device comprising a display unit (A) mainly composed of electronic paper, a lighting unit (B), and radio control means (C), wherein the radio control means (C ) Is a radio wave band of either 920 MHz band or 2.4 GHz band.

  In the variable display function signboard device of the present invention, it is preferable that the illumination unit (B) is an edge light type front light having a light guide diffusion member and LEDs at side end portions of the light guide diffusion member.

  It is preferable that the variable display function signboard apparatus of the present invention further includes a voice output device (D), and the voice of the voice output device (D) is controlled by the wireless control means (C).

  The variable display function signboard apparatus of the present invention further includes an alarm lamp device (E), and the lighting of the alarm lamp device (E) is preferably controlled by the radio control means (C).

  The variable display function signboard apparatus of the present invention further includes a power supply unit (F), and the power supply unit (F) preferably includes a solar cell panel and a storage battery that charges power from the solar cell panel. .

  The display operation method of the variable display function signboard device of the present invention comprises a display unit (A) mainly composed of electronic paper, a lighting unit (B), and radio control means (C), and the radio control means (C) includes In a signboard device in which the radio wave band to be used is one of the 920 MHz band and the 2.4 GHz band, the display of the display unit (A) is changed by control via the wireless control means (C), and the advertisement is normally performed. A display actuating method for a variable display function signboard device, characterized in that display or guidance display is performed, and blame guidance display or disaster information display is performed when a disaster occurs.

  In the display operation method of the variable display function signboard device of the present invention, the illumination unit (B) is a light guide diffusing member and an edge light type front light having an LED at a side end of the light guide diffusing member. Is preferred.

  In the display operation method of the variable display function signboard apparatus according to the present invention, each display unit (A) is arranged so that a plurality of signboard apparatuses are arranged along the evacuation route and can be guided to the evacuation site by following each signboard apparatus. It is preferable that the display is interlocked by computer control.

  In the display operation method of the variable display function signboard device of the present invention, a code obtained by encoding access information for guiding to desired information is displayed on at least a part of the display of the electronic paper, and the code is for personal use. It is preferably configured by a two-dimensional code that can be read by a portable terminal, and by reading the two-dimensional code, desired information is displayed on a personal portable terminal.

  According to the present invention, it is possible to provide a variable display function signboard device that can switch display by wireless control and consumes less power. The variable display function signboard apparatus of the present invention can usually perform advertisement display or guidance display, and can perform blame guidance display or disaster information display when a disaster occurs. Therefore, for public facilities such as libraries, playgrounds, parks, government offices, schools, corporate buildings and factories, signs and information boards installed inside and outside commercial facilities and stores, signs such as bus stops and taxi stands, and telephone poles It can be used for signboards to be installed, and in certain situations such as when a disaster occurs, it can be used for police, firefighting, and other services by using one type of radio wave selected from the 920 MHz band and 2.4 GHz band. Display of evacuation guidance etc. by radio control means (C) without interfering with radio communications such as the Self-Defense Forces, public broadcasting, mobile phones, etc. and without requiring registration or license for the use of radio waves Can appear and show the route to the evacuation site. If the display at the normal time of the variable display function signboard device is a corporate advertisement by the sponsor, the cooperation of the sponsor can be obtained in terms of cost, and the installation can be advanced widely. Furthermore, if multiple variable display function signage devices are arranged along the evacuation route (replaced from new or existing signboards) and the optimum route according to the disaster situation is displayed, not only local residents but also the local area for the first time Even if a person who visits is accidentally damaged, it is possible to easily evacuate to a wide-area evacuation site or a temporary evacuation site determined for each region. In addition, if the display unit (A) is provided with a code display unit that encodes access information for guiding information such as disaster conditions and evacuation routes, it can be damaged by reading it with a mobile terminal. The person can acquire such information accurately.

Sectional drawing which shows an example of the variable display function signboard apparatus of this invention The figure which shows the example of a display of the variable display function signboard apparatus in Embodiment 1 of this invention. The figure which shows the structural example of the variable display function signboard apparatus in Embodiment 1 of this invention. The figure which shows the structural example of the variable display function signboard apparatus in Embodiment 2 of this invention. The figure which shows the example of a display of the variable display function signboard apparatus in Embodiment 2 of this invention.

  The variable display function signboard device of the present invention has a display unit (A) mainly composed of electronic paper and wireless control means (C), and the display of electronic paper can be switched by the wireless control means (C). it can.

  In the variable display function signboard device of the present invention, the electronic paper used for the display unit (A) is not particularly limited, and is a microcapsule method, an electrophoresis method, an electronic powder fluid method, a cholesteric liquid crystal method, an electrowetting method, and a chemical method. An electrophoretic method such as a change method, which can be appropriately selected from conventionally known electronic papers, is preferred. In particular, an electrophoretic method that does not require any power to maintain image display and requires little power during rewriting is preferable. Used. The electronic paper may be either black and white or color. In particular, if color electronic paper is used and a part or all of the display at the time of a disaster is, for example, a blinking display in red, it is possible to appeal that the display at the time of a disaster is performed and attract people's attention. Moreover, in the variable display function signboard apparatus of this invention, when a large sized display part (A) is required, you may form a display part (A) combining several electronic paper. The display of the combined electronic paper can be used like a single large electronic paper by collectively controlling by the wireless control means (C), and a lot of different information can be controlled individually. Can be displayed simultaneously.

  In the variable display function signboard device of the present invention, the display unit (A) has the above-described electronic paper as an essential component, but may further include other elements as long as the object of the present invention is not impaired. For example, in order to protect the electronic paper, a transparent plastic or glass panel or clear sheet may be arranged on the outermost layer on the front side of the display section (A). In order to impart antifouling properties and the like, a clear coat layer made of a transparent plastic may be provided on the electronic paper. Further, it may have a memory unit for storing image data to be displayed on the electronic paper.

  In the variable display function signboard of the present invention, the wireless control means (C) receives the data to be displayed on the electronic paper wirelessly, or uses the received data or the image data previously stored in the memory unit. In addition, the lighting unit (B) can be turned on / off or blinked to control the brightness of the lighting, and the sound output device (D) or warning light device (described later) can be controlled. E) and other devices such as various sensors are controlled. A signal for performing control is transmitted / received using a radio wave of a band selected from the 920 MHz band and the 2.4 GHz band, and the radio control means (C) has an interface for receiving this signal, or is attached. To do. Here, the 920 MHz band (915 MHz to 928 MHz), the 2.4 GHz band (2400 MHz to 2483.5 MHz, and 2471 MHz to 2497 MHz) are secured for low-power radio stations, and weak output (depending on the standard, for example, 10 mW or less) Or a frequency band that can be used without registration or license. By using weak radio waves in this band, multiple variable display function signs without interfering with radio communications such as police, firefighting, and self-defense forces, public broadcasting, and mobile phones that are important for disaster relief activities It is possible to manage the devices in a batch and operate each device in an interlocked manner so that the evacuation guidance in the local area can be performed more effectively, and the radio waves are also used when renewing the advertisement display and guidance display during normal times. be able to. As a communication control standard of the wireless control means (C), it is preferable that a wireless network can be constructed using the above-described band. As such a standard, ZigBee (registered trademark), Bluetooth (registered trademark), etc. Can be mentioned. In particular, ZigBee (registered trademark) does not require the installation of a dedicated access point, has a large communication reach, extremely low power consumption in the standby state, and recovers from the standby state to instantly build a network. It is particularly preferably used in the present invention because it can be used.

  Since the variable display function signboard apparatus of the present invention has the wireless control means (C), it is possible to construct an evacuation guidance system for operating a plurality of variable display function signboard apparatuses in cooperation with each other. Guidance can be performed from the local disaster prevention center, and control for automatically displaying the optimum evacuation route from the inside of the building to the outside can be performed from a single computer. Assuming local evacuation guidance, for example, a plurality of variable display function signage devices are distributed and arranged in the city, while a computer for controlling these variable display function signage devices is arranged in a regional disaster prevention center, and a variable display function is provided. If a communication system corresponding to the same standard as the wireless control means (C) attached to the signboard device is connected to the control computer of the disaster prevention center, a plurality of variable display function signboard devices and the control computer of the disaster prevention center are connected to each other. The ID (such as a fixed IP address assigned to the wireless control means (C) and the device-specific MAC address) assigned to the variable display function signboard device and the installation location (position information) of the variable display function signboard device are combined. Information can be registered in the control computer deployed at the disaster prevention center to build a local evacuation guidance system. In the event of a disaster, the disaster prevention center has attached the safety information of the situation of the disaster and the route to the evacuation site to the radio communications of the police, firefighting, self-defense forces, etc., broadcasting of TV / radio, and variable display function signage devices Obtained from the above, aggregated in the computer, and automatically sent signals via wireless to the variable display function signage devices placed in various places, controlling the electronic paper of the display (A), evacuation route and disaster information Can be displayed. By displaying information indicating the optimal evacuation route for each region / district according to the installation location of the variable display function signboard device, and operating each variable display function signboard device in conjunction with each other, for example, a local association unit It can be controlled from the computer of the disaster prevention center so as to sequentially show the optimum evacuation route from the area to the regional wide area evacuation site. In addition, it is possible to control the voice output device (D) and the warning light device (E) from the wireless control means (C), and further, the voice data uttered from the voice output device (D) is sent to the disaster prevention center. It can also be sent directly from the computer and played.

  Since electronic paper is a reflective display medium and cannot be seen when the surroundings are dark, such as at night, it is necessary to attach an illumination unit to obtain night visibility. In the variable display function signboard device of the present invention, as the lighting unit (B), a conventionally known signboard lighting device that illuminates the display unit (A) from the front side may be used, but it is driven by a battery when a power failure occurs due to a disaster. Assuming that the power consumption of the signboard device is low as a whole, an edge light type front light having an LED light source at the side end is preferably used. These are also preferable in that they are thin and do not take up installation space.

  The variable display function signboard device of the present invention further includes a power supply unit (F), and the power supply unit (F) preferably includes a solar cell panel and a storage battery that charges power from the solar cell panel. . The power supply unit (F) supplies power to the display unit (A), the lighting unit (B), and the wireless control means (C), and at the same time, an audio output device (D) and a warning lamp device described later. (E) and other auxiliary devices such as sensors can also supply power. Although a power supply part (F) may consist only of a solar cell panel and a storage battery, the structure which receives the electric power from a commercial power source and stores it in a storage battery at the time of a normal time may be sufficient. Combined use of solar cells and commercial power supplies enables the variable display function signboard to operate even during power outages and restores power transmission even if bad weather continues and power from the solar cells is interrupted. Then, the variable display function signboard apparatus can be operated. The solar cell panel used for the variable display function signboard device of the present invention is not particularly limited, and silicon solar cells such as single crystal type, polycrystalline type, microcrystalline type, and amorphous type, dye sensitized type, and organic thin film type. Such organic solar cells as those described above can be appropriately selected from known materials and used alone or in combination of two or more. There is also no particular limitation on the storage battery used in the present invention, sodium / sulfur storage battery, lead storage battery, lithium ion storage battery, lithium ion polymer storage battery, nickel / hydrogen storage battery, nickel / cadmium storage battery, nickel / iron storage battery, nickel / zinc storage battery, oxidation It can be appropriately selected from conventionally known storage batteries such as silver / zinc storage batteries in consideration of the use environment, cost, life, efficiency, size, weight and the like.

  In the variable display function signboard device of the present invention, the voice output device (D) reproduces an alarm message such as a voice message or siren / buzzer registered in the variable display function signboard device in advance, or wireless control means (C). The voice data received from the disaster prevention center via the is played. The audio output device (D) includes at least a speaker and an amplifier. There are no particular limitations on the output and format of the speaker or amplifier, and they can be appropriately selected and used as desired. By providing the audio output device (D), visually impaired persons can be evacuated and foreigners can be guided by sending messages in multiple languages. Also, if a tsunami has occurred and the tsunami is approaching the area, a warning can be issued by voice.

  In the variable display function signboard device of the present invention, the warning lamp device (E) is for attracting people's attention by blinking / rotating light, etc., and its shape / structure is not particularly limited, but red, Blue, yellow, green, and other rotating lights are preferably used because they are easily available, attract attention, and can be prevented from being mistaken for traffic lights. One or more warning light devices (E) can be used. When there are two or more, for example, in the combination of red and green, it is possible to activate red during an emergency alarm, and operate green for a certain period of time when the alarm is released. It is also possible to use it at the reporting stage.

  In addition to the voice output device (D) and warning light device (E) described above, the variable display function signboard device of the present invention is accompanied by a sensor (G) for grasping the situation around the variable display function signboard device. May be. Examples of the sensor include a light sensor, a human sensor, a sound collecting microphone, a camera, a thermometer, a smoke sensor, and a radiation measuring instrument (survey meter). This internal light sensor is a device that senses the brightness of the surroundings, and if this is attached, the brightness of the surroundings where the variable display function signboard device is installed is controlled via the wireless control means (C). The control computer side can control lighting, extinguishing and blinking of the lighting unit (B) according to the brightness, and can further control the luminance at the time of lighting to an optimum value. By performing such control, power consumption can be reduced and evacuation guidance display can be performed for a long time even when operating with only power from the storage battery. A human sensor is a sensor that detects the presence of a person. It emits a passive sensor that detects the presence of a person by receiving infrared rays (far infrared rays) emitted from the human body, near infrared rays, visible light, ultrasonic waves, radio waves, etc. It can be appropriately selected and used from an active sensor that detects the presence of a person by receiving the reflection. By using a human sensor, control is performed so that the audio output device (D) and the warning light device (E) are activated only when a person approaches, or the lighting unit (B) can be operated if no person is nearby. It is also possible to perform control such as blinking and fixing to a lighting state when a person is nearby, and an evacuation guidance display can be performed for a long time even when operating with only power from the storage battery. If a camera (for example, a web camera) or a sound collecting microphone is attached, the disaster prevention center will be able to easily grasp the safety information around the place where the variable signage device is installed. It can be made more accurate. In addition, if the camera is directed to the variable display function signboard device, it can be confirmed from the disaster prevention center whether the device is operating properly. Thermometers and smoke sensors are particularly sensitive to the occurrence of a fire, and if they are attached, the computer of the disaster prevention center can not only grasp the occurrence of the fire instantly but also receive the location of the occurrence as information. Based on the information, an evacuation route for avoiding a fire occurrence point can be shown. A radiation measuring instrument is a small instrument for measuring the radiation dose in a local area. If a radiation measuring instrument is attached to a plurality of variable display function signboards that are distributed, a nuclear accident involving leakage of radiation pollutants will occur. When this occurs, the pollution status of each local area can be grasped in real time by the disaster prevention center, and evacuation instructions and contaminated area information can be sent.

  In the variable display function signboard of the present invention, a code obtained by encoding access information for guiding to desired information is displayed on at least a part of the display on the electronic paper, and this code is read by a personal portable terminal. It is configured by a possible two-dimensional code, and it is preferable that desired information can be displayed on the personal portable terminal by reading the two-dimensional code. The access code described in the code display may be, for example, a code of the address of the evacuation guidance information page inside the regional disaster prevention center homepage constructed on the Internet. If disaster information that changes every moment is reflected in the evacuation guidance information page, the disaster victim can always obtain the latest information by reading the two-dimensional code with a personal portable terminal. In addition to the address of the evacuation guidance information page, if the position information of the variable display function signboard device is also coded at the same time, it will lead to a page with information such as a map showing the optimal route from that position to the evacuation site You can also

  Hereinafter, in order to promote a further understanding of the present invention, a configuration example and a display operation method of the variable display function signboard device of the present invention will be described with examples, but the present invention is not limited to these. Absent.

[Embodiment 1]
FIG. 1 is a cross-sectional view showing the structure of the variable display function signboard device (1) of the first embodiment. In FIG. 1, the portions drawn with a gap between the layers simply indicate the positional relationship in which the layers are overlapped, and do not mean that the gaps are actually arranged with a gap. The display unit (A) of Embodiment 1 uses electrophoretic electronic paper (2), and has a white polycarbonate plate (3) with a thickness of 2 mm as a base panel on the back side of the electronic paper. ing. On the display unit (A), an edge light type front light having an LED light source (not shown) at a side end is arranged as an illumination unit (B).

  FIG. 2 is a diagram illustrating a display example of the variable display function signboard device (1) according to the first embodiment. This is a guide sign installed at the entrance of a park designated as a wide-area evacuation site, and is usually used as a sign for displaying park information as shown in FIG. When a disaster such as an earthquake occurs, the electronic paper display is switched to the one shown in Fig. 2-b to display that it is a wide area evacuation site, and visually evacuate to this location. Can do. Appropriate for the situation, such as when a fire breaks out in the park, and it can no longer be used as an evacuation site, the display on the electronic paper is switched to a content that prompts you to go to another evacuation site. Evacuation guidance can also be performed.

  FIG. 3 is a diagram showing the configuration of the variable display function signboard device (1) of the first embodiment. The variable display function signboard device (1) is accompanied by a solar cell panel (4) and a power source (F) having a nickel ion storage battery (5) for charging power from the solar cell panel. In this configuration, the charged power is supplied to the device. Although not shown in FIG. 3, as in FIG. 1, an edge light type front light is arranged as a lighting unit (B) on the display unit (A). In the variable display function signboard device of the first embodiment, an interface corresponding to ZigBee (registered trademark) using radio waves in the 920 MHz band is connected to the wireless control means (C), and the brightness around the device is detected. An optical sensor (G-1) and an audio output device (D) are attached. On the other hand, a ZigBee (registered trademark) compatible control interface is connected to a computer (not shown) of the disaster prevention center, and data exchange and control signal transmission / reception are performed between the interfaces. The wireless reach distance of ZigBee (registered trademark) in the 920 MHz band is about 3 to 10 km when there is no shield on the way between one-to-one interfaces, but if a large number of interfaces having a relay function are arranged, the interface A branch-like or net-like network is constructed in the area where the slabs are arranged, and a plurality of variable display function signboard devices distributed in a wide range can be controlled from the computer of the disaster prevention center even in a city with many shields. With such a configuration, when a disaster occurs, the brightness around the area where the variable display function signboard device is installed is read by the optical sensor (G-1) and sent to the control computer via the wireless control means (C). On the control computer side, the lighting unit (B) can be turned on and off, and the brightness can be controlled according to the brightness, so that the display of the evacuation site can be adjusted easily. When the surroundings of the variable display function signboard device are bright, the lighting unit (B) is not turned on, the power consumption is reduced, and the evacuation guidance display can be continued for a long time even when operating with only the power from the storage battery. it can. (Electrophoretic electronic paper does not consume power except during display switching, and the ZigBee (registered trademark) interface consumes very little power in the standby state. On the other hand, when the surroundings are dark, when the surroundings are dark, if the lighting is slightly higher than the luminance that makes it easy to see, the role of the streetlights when the surroundings become dark due to a power failure Can also be carried. In addition, the voice output device (D) utters the evacuation guidance message registered in advance in the variable display function signboard device or the voice information transmitted from the disaster prevention center at an arbitrary timing, and a more specific evacuation instruction. Can be done. When a plurality of variable display function signboard devices are arranged in a region, all devices can be controlled simultaneously via a network between ZigBee (registered trademark) interfaces. Even if an interface (having a relay function) located in the middle of the network fails due to a disaster or other reason and communication is interrupted, the control interface connected to the computer of the disaster prevention center automatically takes another route. , And you can skip the failed interface and establish a connection with the interface ahead. Note that the display of the electronic paper can be maintained even while communication is interrupted, and the evacuation guidance display is continued.

[Embodiment 2]
Also in the second embodiment, a variable display function signboard apparatus having the same structure and configuration as in the first embodiment is used. However, a human sensor (G-2), a sound collecting microphone (G-3), and a camera (G-4) are attached as sensors, and in addition to the sound output device (D), a red light is used as a warning light device (E). A rotating light is attached (Fig. 4). In FIG. 4, as in FIG. 3, an edge light type front light is arranged as the illumination unit (B) on the display unit (A), but the illustration is omitted. The variable display function signboard apparatus of Embodiment 2 is a signboard installed in front of the library as shown in FIG. By having the microphone (G-3) and camera (G-4), the disaster prevention center can grasp the state around the variable display function signboard device, and whether the evacuation route is safe is visually and auditorily. Can be judged. Also, the warning light device (E) can be activated to attract the attention of the evacuating person, and only when the human sensor (G-2) detects the approach of the person, the sound output device (D) The evacuation guidance by can be uttered. About a display part (A), it is normally used as a signboard which displays a library like FIG. When a disaster occurs, the electronic paper display is switched as shown in FIG. 5A, and the left arrow and the display indicating that the route is to the wide area evacuation site are displayed. On the other hand, if it is judged that there is a danger in the route along the way due to an accident, fire, damage to the building, etc., a right arrow display and a message indicating a detour are displayed as shown in FIG. You can guide to the evacuation route. For these displays, image data stored in advance in a memory unit (not shown) in the variable display function signboard device may be used, or image data transmitted from the disaster prevention center may be used. For example, if the image data of Fig. 5-a and Fig. 5-b is stored in the memory unit, the computer of the disaster prevention center only needs to issue a command to select and display either data, and evacuate instantly. A guidance display can be performed. On the other hand, when the image data transmitted from the disaster prevention center is used, it takes some time to transmit the data, but it is possible to perform display more in accordance with the disaster situation. Further, as shown in FIGS. 5A and 5B, the two-dimensional code (6) that can be read by the personal portable terminal can be displayed at an arbitrary position on the electronic paper. If the two-dimensional code is, for example, an address of a homepage on which local disaster prevention information is posted, the homepage can be displayed on the mobile terminal by the victim reading it on the mobile terminal. The homepage displays detailed disaster information for the area (fire, disruption of roads due to collapse of buildings or landslides, information on restricted areas due to gas leaks, fuel leaks, leaks of radiation pollutants, etc.) In the variable display function signboard device, it is possible to display the direction of evacuation from the current location.

  The variable display function signboard device of the present invention normally displays a normal display as a signboard or guidance display, and displays an evacuation guidance guide or the like by wireless control on the variable display function signboard device arranged at a key point in the event of a disaster. Business model for operating evacuation guidance systematically. Therefore, public facilities such as libraries, playgrounds, parks, government offices, schools, corporate buildings and factories, indoor and outdoor such as commercial facilities and stores, signboards and information boards installed in station concourses and underground malls, bus stops and taxi stands, etc. It can be used for signs, vending machines, road furniture, signboards installed on telephone poles, etc., and in certain situations such as in the event of a disaster, displays such as evacuation guidance information can be displayed outdoors. Can indicate the route to the evacuation site, and can indicate the route to the exit (or emergency exit) indoors. If the display of this variable display function signage device in the normal state is a corporate advertisement by the sponsor, the cooperation of the sponsor can be obtained in terms of cost, the installation can be advanced widely, and multiple placement along the evacuation route Then, not only residents in the area but also people who have visited the area for the first time can easily evacuate to the evacuation site.

A: Display unit B: Lighting unit C: Radio control means D: Audio output device E: Warning light device F: Power supply unit G: Sensor G-1: Light sensor G-2: Human sensor G-3: Sound collecting microphone G-4: Camera G-5: Thermometer G-6: Smoke sensor G-7: Radiation measuring instrument 1: Variable display function signboard device 2: Electronic paper 3: White polycarbonate plate 4: Solar battery panel 5: Storage battery 6: 2D code

Claims (9)

  A signboard device comprising a display unit (A) mainly composed of electronic paper, a lighting unit (B), and radio control means (C), wherein the radio wave band used for the radio control means (C) is a 920 MHz band, A variable display function signboard device that is in a 2.4 GHz band.   The variable display ability signboard device according to claim 1, wherein the lighting unit (B) is an edge light type front light having a light guide diffusion member and an LED light source at a side end portion of the light guide diffusion member.   The variable display function signboard device according to claim 1 or 2, further comprising a voice output device (D), wherein the voice of the voice output device (D) is controlled by the wireless control means (C).   The variable display function signboard device according to any one of claims 1 to 3, further comprising a warning light device (E), and lighting of the warning light device (E) is controlled by the wireless control means (C). .   The variable power supply according to any one of claims 1 to 4, further comprising a power supply unit (F), wherein the power supply unit (F) includes a solar battery panel and a storage battery that charges power from the solar battery panel. Display function signage device.   It consists of a display unit (A) mainly composed of electronic paper, a lighting unit (B), and radio control means (C), and the radio wave band used for the radio control means (C) is in the 920 MHz band and 2.4 GHz band. In any one of the variable display function signage devices, the display of the display unit (A) is changed by the control via the wireless control means (C), and the advertisement display or the guidance display is normally performed. A display operation method for a variable display function signboard device, characterized by performing guidance display or disaster information display.   The display of the variable display function signboard device according to claim 6, wherein the illumination unit (B) is a light guide diffusion member and an edge light type front light having an LED light source at a side end of the light guide diffusion member. Actuation method.   A plurality of signage devices are arranged along the evacuation route, and the display of each display unit (A) is operated in conjunction with computer control so that the user can guide to the evacuation site by following each signage device. A display operation method of the variable display function signboard device according to claim 6 or 7.   A code obtained by coding access information for guiding to desired information is displayed on at least a part of the display of the electronic paper, and the code is configured by a two-dimensional code that can be read by a personal portable terminal. The display operation method of the variable display function signboard device according to any one of claims 6 to 8, wherein desired information is displayed on a personal portable terminal by reading the two-dimensional code.