JP2010072913A - Electronic signboard for disaster prevention and its system - Google Patents

Abstract

An object of the present invention is to quickly share important safety information among disaster victims in the disaster area such as which evacuation site each disaster victim is evacuating.
A variable display function unit for displaying information to be shared in all facilities that are designated as shelters at the time of a disaster and that have become shelters at the time of a disaster, and the shared information It solves with the electronic signboard for disaster prevention characterized by having at least the communication part which consists of a communication apparatus for communicating.
[Selection] Figure 1

Description

  The present invention relates to an electronic signboard including a disaster prevention use and a display system using the electronic signboard.

  Each local government has established a policy on how to evacuate affected people in the event of a disaster such as an earthquake or storm and flood damage, but most local governments have set up a blame policy that divides the evacuation site into two or more stages. In other words, the first stage is to gather at places called temporary shelters, etc., which are set up in open spaces and parks, etc., which are divided so that there are about 1,000 to 2,000 residents in the area. If you are forced to live in an evacuation center for a while, you will pass through a predetermined evacuation route and gather in a place called an evacuation center where facilities that serve as a base for evacuation life are prepared or can be quickly prepared It's a way to make things a second step.

  In such an evacuation method, the temporary evacuation shelter where the victim is evacuated is obvious when the disaster occurs at home, but differs depending on the location of the disaster when the disaster occurs while going out. Or if the victim is a citizen who does not pay attention to the evacuation site even if it is a disaster at home, the evacuation site where they evacuate is not necessarily self-evident.

  In an extraordinary situation where a disaster occurs, the victim will take an extraordinary action such as evacuation by the above-mentioned method, so the safety information of the victim is a kind of important information and needs this. A system that promptly informs those who do it is required. This is because without such a system, it is necessary for the victims and related parties to try to obtain safety information individually using a general telephone line, so the line becomes congested, and in severe cases communication This is because the efficiency is extremely lowered, so-called congestion collapse.

  Consciousness about such demands and problems has existed for a long time, NTT has started service from March 31, 1998, and the company has started trial operation from August 30, 2005 A disaster broadband message board is one example (see Non-Patent Document 1). All of these technologies are used to secure individual-to-person communications, although there is a time difference, while avoiding line congestion by exchanging safety information using the telephone number contracted by the victim as a key.

  However, in order to avoid congestion in the early days after a disaster, the disaster message dial gives priority to the two uses of “recording from the disaster area” and “listening from outside the disaster area”. The problem is that the safety confirmation cannot be obtained. In addition, there are usually multiple people who want this information on the safety information of a particular victim, and the system that is known to many people rather than individual-to-person communication is more promising in the event of a disaster. Desired. In this case, broadcasters may broadcast their own safety information in the event of a large-scale disaster, but it is not possible for broadcasters to continue to broadcast only safety information due to the inherent broadcast time restrictions. Therefore, it is difficult to obtain information necessary for victims and related persons by this kind of broadcasting, and in the first place, it is not a system because it is a measure taken by a broadcasting company until it gets tired.

On the other hand, as a system for providing safety information to a large number, a system that provides safety information to a specific large number as in Patent Document 1 has been proposed. However, it is a provision to “specific” many people, and in order to receive the provision of safety information of a certain victim, it is necessary to register in advance that the person concerned is related to the victim. Moreover, in this system, since only the safety information of the person registered in the database is acquired at the time of a disaster, it is also necessary to register this in advance. Although it is more important to raise awareness about disaster prevention on a daily basis, the safety information provision means that it is important that the majority of the victims can use it as long as they cannot take measures to force prior registration, the system If the effectiveness of is low, it must be refused.

In actual use, there may be an operation method in which registration is performed afterwards by installing a registration terminal at the evacuation site. However, it is necessary to register the destination for providing safety information at the time of registration. Such a thing is indispensable.
JP 2002-342859 A NTT East Disaster Initiatives [on line], [Search June 6, 2008], Internet, <URL; http: // www. ntt-east. co. jp / saigai />

  Therefore, the existing safety confirmation method, that is, a method using a disaster message dial or an information terminal has a problem that it is very difficult to confirm the safety among the disaster victims in the disaster area. Considering that it is natural that the person who wants the safety information of a person is the community where the person lives, it is difficult to share the safety information among the disaster victims in the region. It should be resolved with the highest priority.

  The present invention has been made in view of the above-described problems, and communicates with an electronic signboard or the like of another evacuation center by an electronic signboard installed in a facility designated as an evacuation center by the communication unit of the electronic signboard. By displaying information on the victims gathered at each shelter that can be used by sharing the information on each shelter with each other's digital signage, the safety of the victims in the disaster area Information can be confirmed quickly and easily, thereby solving the above-mentioned problems.

  That is, the invention according to claim 1 is in a facility designated as a shelter at the time of a disaster, and in the event of a disaster, a variable display function unit for displaying information that should be shared by all the facilities that have become shelters And an electronic signboard for disaster prevention characterized by having at least a communication unit including a communication device for communicating the shared information.

The invention according to claim 2 is the electronic signboard for disaster prevention according to claim 1,
An electronic signboard for disaster prevention characterized in that an information communication method is radio communication performed using radio waves in a band used in a mobile phone and communication technology in a mobile phone.

The invention according to claim 3 is the electronic signboard for disaster prevention according to claim 1,
An electronic signboard for disaster prevention characterized in that the display unit of the variable display function unit is made of electronic paper.

The invention according to claim 4 is the electronic paper according to claim 3,
An electronic signboard for disaster prevention, wherein the electrophoretic particles in the dispersion medium are white electrophoretic particles and black electrophoretic particles.

Moreover, the invention which concerns on Claim 5 is a display system using the electronic signboard for disaster prevention in any one of Claims 1-4,
Information generated from each evacuation center and required by all refugees including not only the evacuation shelter but also other evacuation shelters was sent from the electronic signboard to a server installed in a remote area where there was no damage. After that, the electronic signboard system for disaster prevention is characterized in that necessary information is shared by sending the information from the server to all the electronic signboards in all the shelters.

  As described above, according to the electronic signboard for disaster prevention of the present invention, by registering information on victims evacuated to designated evacuation sites when natural disasters such as earthquakes and storms and floods occur, Safety information that is particularly important among disaster victims, such as whether they are evacuating to an evacuation site, is quickly shared among the disaster victims in the disaster area.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing the configuration of an operation system for an emergency signboard which is one embodiment of the invention. In the figure, reference numeral 1 denotes a disaster prevention electronic signboard preliminarily installed at a designated evacuation site, which comprises at least a display unit for displaying information and a communication unit for communicating information. A server 2 exchanges information with the electronic signboard 1 in the area. Information on each electronic signboard is shared by exchanging the display contents of each electronic signboard via the server as shown in FIG.

  FIG. 2 is a block diagram showing a structural outline of the electronic signboard. The safety information of the victim and information necessary for the victim are input from the input unit 4, processed by the system control unit 3, and stored in the storage unit 5. Shared information with other electronic signboards sent via communication with the server by the communication unit 7 is also stored in the storage unit 5 through the system control unit 3. When wireless communication is used as the communication means, the radio wave received by the antenna 8 is detected and demodulated by the communication unit 7, and the signal is stored in the storage unit 5 through the system control unit 3. Information stored in the storage unit 5 is processed by the system control unit 3 and displayed on the display unit 6. The information stored in the storage unit 5 communicates through the communication unit 7 and is sent to the server. When wireless communication is used as the communication means, the information in the storage unit 5 is modulated by the system control unit 3 as a signal to the communication unit 7 and transmitted through the antenna 8.

  Regarding the input of information to the electronic signboard, not only the input section 4 described above but also wireless communication input is conceivable. In this case, similarly to the communication between the electronic signboard and the server, an input radio wave is received by the antenna 8 and the communication section The signal demodulated in step 1 is processed by the system control unit 3 and stored in the storage unit 5.

  When wireless communication is used as the communication means, it is conceivable to use wireless packet communication used for mobile phones and the like. Alternatively, it may be possible to perform wireless communication by cooperating with a mobile phone operator for operation. As for the latter communication means, there is a possibility of congestion as in the case of the disaster message dial because the public communication network is used, but the versatility of the communication unit 7 is enhanced. In any case, there is no problem even if the server is far from the area where the electronic signboard is installed. Therefore, it is possible to construct a system in which the server is not damaged.

  Next, the configuration of the display unit 6 that displays character information will be described. As shown in FIG. 3, the electrophoretic display panel according to the present invention uses ink composed of microcapsules 19 using a dispersion medium 12 including white particles 11 and colored particles 13, and a transparent electrode 10 on a transparent substrate 9. A back surface comprising a back base material 17 in which a capsule type electrophoretic layer is formed by coating on the provided front electrode plate 18 and a pixel electrode 16 is disposed on the capsule type electrophoretic layer via a transparent adhesive layer 15. This is achieved by laminating the electrode plate 20. Note that FIG. 3 is a schematic diagram, and the thickness of each layer depicted in FIG. 3 does not reflect the actual thickness. In practice, the microcapsule-containing layer is usually formed to form a very thin film of about several tens of μm, while the front electrode plate and the back electrode plate are formed to have a much thicker layer. ing.

  As the transparent dispersion medium, it is possible to use a solvent in which aliphatic hydrocarbons, aromatic hydrocarbons, alicyclic hydrocarbons, halogenated hydrocarbons, various esters, alcohol solvents, or other fats are used alone or appropriately mixed. it can.

  The average capsule particle size in a microcapsule solution purified by an arbitrary method such as sieving or specific gravity separation is 40 to 70 μm.

  As the colored particles, in addition to inorganic pigments such as inorganic carbon, fine powders such as glass or resin, and composites thereof are used.

  As the white particles, known white inorganic pigments such as titanium oxide, silica, alumina, and zinc oxide, organic compounds such as vinyl acetate emulsion, and composites thereof are used.

  The colored particles and the white particles can be provided with a desired surface electrification by treating the surface of the particles with various surfactants, dispersants, organic and inorganic compounds, metals, and the like, if necessary. In addition, the dispersion stability in the dispersion medium can be improved.

  The dispersion is encapsulated in microcapsules prepared using a known method such as a phase separation method such as a mixed coacervation method, an interfacial polymerization method, an in-situ method, or a solution dispersion cooling method. The microcapsule is, for example, rubber or gelatin.

  The front electrode plate has a transparent electrode on a transparent substrate. Examples of the transparent substrate include polyethylene terephthalate, polycarbonate, polyimide, polyethylene naphthalate, polyethersulfone, acrylic resin, plastic film such as polyvinyl chloride, or glass. For the transparent electrode, for example, an electrically conductive oxide having transparency such as indium oxide, tin oxide, and zinc oxide is used. For this formation, conventional techniques such as vapor deposition, sputtering, and CVD are used.

  The capsule type electrophoretic layer is coated with the microcapsule ink on the front electrode as described above. As a coating method, a micro gravure coater, a kiss coater, a comma coater, a die coater, a bar coder, a curtain coater, or the like is used. By laminating this with a transparent adhesive layer, a front substrate for an electrophoretic display panel is produced.

  By laminating the front substrate for the electrophoretic display panel with the rear substrate on which the pixel electrodes are arranged, the electrophoretic display unit 6 using the electronic paper in the electronic signboard for disaster prevention of the present invention is manufactured. Hereinafter, the effects of the present invention will be described in detail based on examples.

  In order to confirm the effect of the present invention, it was confirmed that the operation of the electronic signboard as described above is possible in principle. The details are described below.

  First, the manufacturing method of the display part 6 of an electronic signboard is explained in full detail. A dispersion in which white particles of titanium oxide powder whose surface was coated with a polyethylene resin and black particles of carbon black particles were dispersed in an ISOPARG solvent was prepared.

  Next, the dispersion was mixed with an aqueous solution in which gelatin and sodium polystyrene sulfonate were mixed in water, the liquid temperature was adjusted to 40 ° C., and the mixture was stirred with a homogenizer while maintaining the liquid temperature to obtain an O / W emulsion. Obtained.

  Next, the obtained O / W emulsion and an aqueous solution prepared by mixing gum arabic with water prepared at 40 ° C. are mixed using a dispenser, and acetic acid is added while maintaining the solution temperature at 40 ° C. The pH of the solution was adjusted to 4 and microcapsule walls were formed by coacervation.

  Further, after the liquid temperature was lowered to 5 ° C., a 37% by weight formalin solution was added to harden the microcapsule wall, and a microcapsule in which a dispersion liquid in which white particles (titanium oxide particles) and cyan colored particles were dispersed was sealed. By obtaining and sieving, a microcapsule solution C having an average particle size of 50 μm and a particle size ratio of 40-60 μm of 75% or more was obtained.

  Next, this microcapsule solution C was prepared to prepare a water-dispersed mixed microcapsule solution having a solid content of 40% by weight, and a urethane binder having a solid content of 40% by weight, a surfactant, a thickener, and pure water. Were mixed to prepare a microcapsule ink.

The microcapsule ink was applied on the ITO / PET substrate with a slot die, dried after application for 10 minutes at 60 ° C., and the resulting sheet was formed into a matrix of 64 dots × 128 dots with a polyester-urethane adhesive. It was bonded to the lined segment substrates at a pressure of 5 kg / cm ² to obtain a display panel device using electronic paper. By arranging 6 panels × 4 panels, an electronic signboard having a size of about 1.5 m × 2.0 m was produced.

  A total of 30 cases, each of 15 cases from 60 pieces of safety information samples prepared in advance, were registered on the two electronic signboards produced as described above by external communication. There are four types of registered information: the name of the victim, the postal code of the address, the evacuation area currently evacuated, and the health status. Further, wireless packet communication is used for communication, and a mobile phone is used as a terminal on the transmission side. As a result of registration, 15 safety information registered in both of the two electronic signboards were displayed on the display unit 6 without any problem.

  Next, in order to share information on each of the two signboards, communication was performed via a server. That is, when the safety information registered on the electronic signboard is transmitted to the server and the safety information from the server is received, a total of 30 safety information registered on each of the two electronic signboards are displayed on both signboards. And confirmed that safety information was shared. Here, wireless packet communication is used for communication between the electronic signboard and the server.

  Next, the information registered on the two electronic signboards is deleted, and one safety information is alternately registered on each electronic signboard every minute, while every 30 minutes information is registered every 5 minutes We communicated to share the information on both signs and confirmed that it was displayed without problems.

  As a result, 5 minutes after the start of the test, 3 pieces of safety information displayed on both signs were shared, and 6 pieces of the same safety information were displayed on both signs. Similarly, 11 information was shared after 10 minutes, and 16 information was shared after 15 minutes, and both electronic signboards worked until 60 safety information created in advance was shared after 1 hour.

It is the figure which showed the outline of the system of the electronic signboard for disaster prevention which is one of embodiment of this invention. It is the figure which showed the outline about the structure of the electronic signboard for disaster prevention of this invention. It is the figure which showed typically about the structure of the electronic paper which is one of the forms of the display part in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Electronic signboard 2 for disaster preventions ... Server 3 ... System control part 4 ... Input part 5 ... Memory | storage part 6 ... Safety information etc. display part 7 ... Communication part 8 ... Antenna 9 ... Front surface base material 10 ... Transparent conductive film 11 ... White particle DESCRIPTION OF SYMBOLS 12 ... Dispersion medium 13 ... Colored particle 14 ... Microcapsule shell 15 ... Transparent adhesive layer 16 ... Pixel electrode 17 ... Back surface base material 18 ... Front electrode plate 19 ... Microcapsule 20 ... Back electrode plate

Claims (5)

  To communicate the shared information with the variable display function unit for displaying information that should be shared in all facilities that have been designated as shelters at the time of disaster and that have become shelters in the event of a disaster An electronic signboard for disaster prevention characterized by having at least a communication unit composed of a communication device. In the electronic signboard for disaster prevention according to claim 1,
An electronic signboard for disaster prevention characterized in that an information communication method is radio communication performed using radio waves in a band used in a mobile phone and communication technology in a mobile phone. In the electronic signboard for disaster prevention according to claim 1,
An electronic signboard for disaster prevention characterized in that the display section of the variable display function section is made of electronic paper. The electronic paper according to claim 3,
An electronic signboard for disaster prevention, wherein the electrophoretic particles in the dispersion medium are white electrophoretic particles and black electrophoretic particles. It is a display system using the electronic signboard for disaster prevention in any one of Claims 1-4,
Information generated from each evacuation center and required by all refugees including not only the evacuation shelter but also other evacuation shelters was sent from the electronic signboard to a server installed in a remote area where there was no damage. After that, the disaster prevention electronic signage system is characterized in that necessary information can be shared by sending the information from the server to all electronic signage signs at all the shelters.

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