JP2008225630A - Evacuee guiding system, evacuee guiding method, and evacuee guiding program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an evacuee guiding system, an evacuee guiding method and an evacuee guiding system for guiding an evacuee to a safe location even in the case of a place where it is difficult to install any disaster information sensor. <P>SOLUTION: A person 300 who moves in an evacuation guidance candidate facility 200 is made to carry a radio tag 301. The radio tag is provided with a disaster information sensing part 311 for acquiring disaster information and an evaluation validating route presenting part 312 for presenting an evacuation validating route. An evacuation route guiding system 100 registers disaster information transmitted from the radio tag and location information obtained from the reception timing in an evacuation route database with identification numbers. The evaluation route guiding system 100 searches for an evacuation validating route based on the movement information history of the radio tag moving to an evacuation completion location when a disaster occurs, and transmits and presents evacuation validating route information to the radio tag of an evacuee. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a refugee guidance system, a refugee guidance method, and a refugee guidance program for guiding a refugee when a disaster or the like occurs.

  The conventional refugee guidance system is provided with a disaster information sensor that detects information related to a disaster in each of a plurality of areas in a building, and a position sensor that detects the position of the refugee, and is connected to these sensors. The central monitoring device is configured to obtain the optimum evacuation route based on the output from the sensor, and to display or notify the optimum evacuation route obtained using a display device provided in each area or a communication device carried by each person. Has been. If such a system is used, as shown in FIG. 10, the optimal evacuation route according to the position (area) can be presented to each refugee (circle 1 to circle 6) (for example, Patent Document 1).

  Further, as a means for detecting the position of the refugee and a means for notifying the evacuation route, there is a means that uses a portable terminal carried by the refugee (for example, see Patent Document 2 or 3).

  Further, there is an apparatus using an IC tag or the like carried by each refugee as means for detecting the position of the refugee (for example, see Patent Document 4 or 5).

  Furthermore, as a system that assumes evacuation guidance not only inside buildings but also outdoors, a remote image monitoring system that observes the number of people moving, speed, density, etc. and the destruction situation of evacuation in real time as a monitoring device Some are used (see, for example, Patent Document 6).

Japanese Unexamined Patent Publication No. 64-42799 JP 2001-218266 A Japanese Patent Laid-Open No. 2003-151058 JP 2005-338991 A JP 2006-19661 A JP 2003-51072 A

  In the conventional evacuee guidance system, it is necessary to provide sensors for detecting information related to disasters in all of the divided areas. In areas without sensors, it is not only possible to detect the occurrence of disasters, but it is also impossible to know whether it can be used as an evacuation route. Because it comes.

  When such a conventional evacuee guidance system is applied to a huge facility having a vast site, for example, an exhibition hall, a stadium, a power plant, an amusement facility, a beach, or a forest facility, an enormous number Disaster information sensors are required. In addition, enormous effort and cost are required for installation of a huge number of disaster information sensors, securing of power supply, construction of networks between all sensors and the central monitoring apparatus, maintenance, and actual operation. In addition, there are many places where it is difficult to install disaster information sensors in huge facilities. Therefore, it is extremely difficult to apply a conventional evacuee guidance system to a huge facility.

  Moreover, the conventional evacuee guidance system using a remote image monitoring system is suitable for guiding a large number of evacuees at once and evacuates evacuees scattered in multiple areas within the facility without omission. Not suitable for guiding.

  Therefore, an object of the present invention is to provide an evacuee guidance system, an evacuee guidance method, and an evacuee guidance system that can guide an evacuee to a safe location even in a place where it is difficult to install a disaster information sensor There is to do.

  The evacuee guidance system according to the first aspect of the present invention includes a plurality of wireless tags including a disaster information sense unit for acquiring disaster information and an evacuable route presentation unit for presenting an evacuable route, The position specifying means for specifying the position of each of the plurality of wireless tags and generating position information; the disaster information acquired by the disaster information sensing unit; and the position information generated by the position specifying means An evacuation route database for chronological registration for each tag, and an evacuable route for another wireless tag based on the disaster information and the location information regarding at least one wireless tag registered in the database An evacuation route guidance system to be sought, and a resident of a facility targeted for evacuation guidance carries the wireless tag to collect the disaster information and present the evacuable route Characterized in that to perform using a line tag.

  In addition, the evacuee guidance method according to the second aspect of the present invention includes a step in which a wireless tag carried by a resident of an evacuation guidance target facility periodically obtains and transmits surrounding disaster information, and the wireless tag A position specifying step of periodically specifying the position of the position and generating position information, a step of registering the disaster information and the position information in an evacuation route database in time series for each wireless tag, and monitoring the evacuation route database Determining the evacuable route candidate based on the position information history of the wireless tag whose position information indicates the evacuation completion position; determining whether the evacuable route candidate is appropriate based on the disaster information; Registering route information representing the evacuable route candidate determined to be appropriate in the evacuation route database as evacuable route information.

  Furthermore, the evacuee guidance program according to the third aspect of the present invention monitors an evacuation route database in which position information indicating the position of a wireless tag and disaster information sent from the wireless tag are registered, and the position information Determining the evacuable route candidate based on the position information history of the wireless tag indicating the evacuation completion position, and determining the suitability of the evacuable route candidate based on the disaster information. And registering route information representing the evacuable route candidate in the evacuation route database as evacuable route information.

  According to the present invention, the wireless tag carried by the resident to the evacuation guidance target facility is provided with the disaster information sensing unit for acquiring the disaster information and the position specifying means for specifying the position of the wireless tag. Even if it is difficult to install a disaster information sensor, it is possible to collect disaster information as long as a resident enters and exits. Further, a safer evacuable route can be determined and presented based on the movement information history of the wireless tag and the disaster information.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  The evacuee guidance system of the present invention is a system that presents an evacuable route with a lower human body influence degree to an evacuee when a disaster such as a fire, an explosion, a typhoon, or a gas leak occurs. The evacuation route to be presented is obtained by using the position information of the evacuee (evacuant evacuation route information) alone or by combining a plurality of evacuation routes. The presented evacuation route is updated in real time based on disaster information that changes from moment to moment, and further based on a result of predicting a change in the disaster situation.

  FIG. 1 shows a schematic configuration of an evacuee guidance system according to the first embodiment of the present invention.

  The evacuation guidance system of FIG. 1 includes an evacuation route guidance system 100, wireless tag transceivers 201-204 provided in the evacuation guidance target facility 200, and a wireless tag carried by a resident 300 who enters the evacuation guidance target facility 200. 301.

  The evacuation route guidance system 100 includes a wireless tag reception program 101, a location specifying program 102, an evacuation route transmission program 103, and a memory (not shown) that stores an evacuation route generation program 104, and a personal computer that executes these programs ( A central processing unit 105 such as an electronic computer, and an evacuation route database 110 including a server (not shown) and a storage device (not shown) connected to the central processing unit 105 are included.

  The wireless tag reception program 101 is a program for receiving information from the wireless tag 301 via the wireless tag transceivers 201-204.

  The position specifying program 102 is a program for specifying the position of the wireless tag 301 (that is, the resident 300) based on information from the wireless tag 301 received using the wireless tag receiving program 101. For example, triangulation calculation based on reception timing differences when information transmitted from the wireless tag 301 is received by a plurality of wireless tag transceivers 201-204 can be used for specifying the position of the resident 300.

  The evacuation route transmission program 103 refers to the information in the evacuation route database 110 when a disaster occurs, and sends the evacuable route information to the wireless tag 301 carried by the resident 300 via the wireless tag transceiver 201-204. It is a program for sending. The evacuation route transmission program 103 constantly monitors the evacuation route database 110, identifies the evacuee / non-evacuee from the registered location information of the resident 300, and transmits the evacuable route information only to the non-evacuee. Make it possible to do. The evacuation route transmission program 103 also gives a warning response to the rescuer indicating the presence of an unevacuated person who has been determined to be unable to evacuate, the location information of the unevacued person, information indicating the status of the disaster, and priority for rescue. It is possible to present information such as degrees.

  The evacuation route generation program 104 is a program for generating evacuable route information indicating a safer evacuable route when a disaster occurs. The evacuation route generation program 104 constantly monitors the evacuation route database 110, and the resident evacuates from the registered location information of the resident 300 to the evacuation completion position, for example, the evacuation guidance target facility 200 (the already evacuated person). It is possible to judge that. Further, the evacuation route generation program 104 makes it possible to update the evacuable route information periodically or aperiodically based on the prediction result based on the change of the disaster information and the movement history information of the already evacuated person. .

  The central processing unit 105 executes the above-described operation according to the program.

  The evacuation route route database 110 accumulates information from the wireless tag 301 that is sent from time to time in time series for each wireless tag, and location information that indicates the position of the resident 300 obtained by the central processing unit 105, Evacuation route information is stored and updated. The information from the wireless tag 301 includes disaster information, transmission time, identification number, and the like.

  The wireless tag 301 is distributed to all residents 300 who enter the evacuation guidance target facility 200, and is required to carry. In FIG. 1, the wireless tag 301 is drawn much larger than the resident 300, but the wireless tag 301 is made as small as possible so that it is convenient for carrying.

  The wireless tag 301 transmits a disaster information sensing unit 311 having a disaster information sensor for detecting information related to a disaster, an evacuable route presentation unit 312 for posting an evacuable route, disaster information detected by the disaster information sensing unit 311, and the like. The radio wave transmission unit 313 and the radio wave reception unit 314 that receives evacuable route information transmitted from the wireless tag transceivers 201 to 204 are provided.

  The disaster information sensing unit 311 includes various disaster information such as a temperature sensor, smoke sensor, oxygen gas concentration sensor, carbon monoxide gas concentration sensor, odor sensor, toxic gas sensor, water pressure sensor, water speed sensor, water quality sensor, and wind speed sensor. One or more sensors selected from the sensors according to the evacuation guidance target facility 200 are mounted. The sensing range of each disaster information sensor may be a local one having a radius of about 3 m.

  The evacuable route presentation unit 312 includes a speaker that informs the evacuable route by voice. The evacuable route presentation unit 312 may include a display.

  The radio wave transmission unit 313 transmits transmission information including the identification number assigned to the wireless tag 301, the detected disaster information, and the transmission time to all the wireless tag transceivers 201-204.

  The radio wave receiver 314 receives the evacuable route information transmitted together with the identification number from the wireless tag transceivers 201-204.

  The radio wave transmission unit 313 and the radio wave reception unit 314 are independent of each other. Therefore, the radio wave receiving unit 314 does not need to provide a communication session with the evacuation route guidance system 100 in order to receive the evacuable route information. Therefore, transmission / reception of information in the wireless tag 301 does not require a communication connection process, a communication disconnection process, a communication monitoring process, a waiting time process in an information waiting state, and a reconnection process at the moment of interruption.

  In the evacuation guidance target facility 200, in addition to the wireless tag transceivers 201-204, a disaster information sensor and an evacuable route presentation unit may be provided. In particular, it is better to have more disaster information sensors in order to improve the disaster situation change prediction system. The evacuable route presentation unit presents the evacuable route to the refugee by voice guidance, guide lamp lighting, laser light emission, evacuable route map display, and the like.

  The wireless tag transceivers 201-204 are connected to the evacuation route guidance system 100. When the disaster information sensor and the evacuable route presentation unit exist, these devices are also connected to the evacuation route guidance system 100. A wireless or wired network can be used for these connections.

  The wireless tag transceivers 201-204 can be connected to the wireless tag 301 wirelessly. The wireless tag transceivers 201-204 receive the identification number, transmission time, and disaster information transmitted from the wireless tag 301, and transmit the evacuable guideway information at the time of disaster occurrence to the wireless tag 301.

  The wireless tag transceivers 201-204 are arranged so that the wireless tag 301 can communicate with at least one wireless tag transceiver anywhere in the evacuation guidance target facility 200. In this embodiment, the number of wireless tag transceivers is four, but the present invention is not limited to this. Note that the wireless tag transceivers 201-204 are protected against anticipated disasters.

  Hereinafter, the operation of the evacuee guidance system of FIG. 1 will be described with reference to FIGS. In FIG. 1, the evacuees 211-213 and 251 are drawn extremely large with respect to the size of the evacuation guidance target facility 200. In FIG. 1, the evacuation guidance target facility 200 is depicted as a single room, but is assumed to be divided into a plurality of areas by walls or the like. Further, it is assumed that the evacuees 211 to 213 in FIG. 1 have already evacuated through the already evacuees evacuation routes 221 to 223. In this system, these evacuation routes 221 to 223 are used as an information source for generating an evacuable route 261 to be presented to the non-evacuated people 251.

  First, with reference to FIG. 2, a normal operation in which no disaster has occurred will be described.

  The manager of the evacuation guidance target facility distributes the wireless tag 301 to the residents 300 who enter the evacuation guidance target facility 200 at the reception, etc., and obligates them to carry the tag. At that time, the administrator inputs a unique identification number assigned to the wireless tag 301 to the evacuation route guidance system 100 (step S1).

  The central processing unit 105 assumes that the wireless tag 301 having the input identification number has entered the evacuation guidance target facility 200, registers the input identification number in the evacuation route database 110, and wirelessly transmits a registration signal notifying the completion of registration. It transmits to the tag 301 (step S2). The registration signal may be transmitted using the RFID tag transceivers 201-204, or a dedicated transmitter provided at the reception or the like. Thereafter, the wireless tag 301 is placed under monitoring by the evacuation route guidance system 100.

  After receiving the registration signal (step S3), the wireless tag 301 thereafter periodically (always) transmits a transmission signal obtained by adding its own identification number and transmission time to disaster information sensed by the disaster information sensing unit 311. Is transmitted (step S4).

  The transmission signal transmitted from the wireless tag 301 is sent to the evacuation route guidance system 100 through all receivable wireless tag transceivers 201-204.

  When receiving the transmission signal from the wireless tag 301 (step S5), the evacuation route guidance system 100 integrates a plurality of reception signals sent from the plurality of wireless tag transceivers 201-204 and registers them in the evacuation route database 110. (Step S6).

  Thereafter, step S4 to step S6 of FIG. 2 are repeated, and during that time, the evacuation route guidance system 100 compares the latest disaster information with the previous (if necessary, before) disaster information, etc. to change the disaster information. Monitor (step S7). As in the case of a disaster that will be described later, the position information of the wireless tag 301 may be generated in step S5 and registered in the evacuation route database 110 together with the disaster information or the like to be monitored.

  As described above, in a normal time when no disaster has occurred, the evacuee guidance system of FIG. 1 constantly acquires the location information and disaster information of the resident 300 (periodically), and performs time series for each wireless tag. Are registered in the evacuation route database 110 as location information and disaster information.

  Next, acquisition of evacuation route information of the resident 300 and generation of evacuable route information when a disaster occurs will be described with reference to FIG. Here, it is assumed that the disaster information sensing unit 311 is not provided in the evacuation guidance target facility 200.

  When the evacuation route guidance system 100 determines that a disaster has occurred based on the disaster information registered in the evacuation route database 110, the evacuation route guidance system 100 issues an evacuation warning to the residents. This evacuation warning may be performed using the wireless tag 301 or an on-site announcement. The resident 300 tries to escape from the evacuation guidance target facility 200 by following a guidance display such as an emergency exit. Meanwhile, the wireless tag 301 continues to transmit a transmission signal including the above-described identification number, disaster information, and transmission time information to the evacuation route guidance system 100 via the wireless tag transceiver 201-204 (steps S11 and S13). .

  The evacuation route guidance system 100 integrates a plurality of reception signals sent via the plurality of RFID tag transceivers 201-204, and based on the position of the RFID tag transceiver 201-204 and the reception timing difference. The position information representing the position of the wireless tag is generated. Then, the evacuation route guidance system 100 registers the integrated reception information and the generated position information in the evacuation route database 110 (steps S12 and S14). In order to be able to generate position information from the difference in reception time, the signal transmission time between each of the RFID tag transceivers 201-204 and the evacuation route guidance system 100 is adjusted in advance, It is necessary to measure signal transmission time (transmission delay time) in advance so that it can be corrected when position information is generated.

  The evacuation guidance system 100 waits for the appearance of the resident 300 who has completed the evacuation according to the evacuation route generation program 104 while performing the above operation. That is, the evacuation route guidance system 100 indicates that the position information of the wireless tag 301 carried by any of the residents 300 has moved to the evacuation completion position outside the evacuation guidance target facility 200 or a predetermined safety zone. Monitor for any. When the evacuation route guidance system 100 determines from the position information of the resident 300 that the resident has moved to the evacuation completion position, the evacuation route followed by the resident 300 (the already evacuated people 211-213) is determined as past position information. The obtained evacuee evacuation route (here, route 221 to 223) obtained from (location information history) is set as a evacuable route candidate. Then, it is determined whether or not the evacuable route candidate is appropriate as the evacuation route by referring to the disaster information associated with the position information. When it is determined that the route is appropriate as the evacuation route, the evacuation route guidance system 100 registers the evacuation route information representing the route in the evacuation route database 110 (step S15).

  Thereafter, in the same manner, the evacuation route guidance system 100 obtains the evacuation routes for the already evacuated people one after another, and registers the information on the route determined to be appropriate as the evacuation route in the evacuation route database 110 as evacuable route information.

  Along with the passage of time, there may be a new inaccessible place in the middle of the route once determined as an evacuable route. When the evacuation route guidance system 100 newly registers evacuable route information in the evacuation route database 110, the evacuation route guidance system 100 updates the registered contents so as to match the already registered evacuable route information. In updating, priority is given to the latest information, old evacuable route information is corrected according to the latest information, and deleted if unnecessary. For example, if there is a route that is determined to have an increased risk based on the newly obtained disaster information, the route is deleted from the already registered evacuable routes. In addition, if there is an area where disaster information cannot be obtained but it can be determined that it is clearly avoided from the movement information, the route is also deleted.

  Next, with reference to FIG. 4, an operation for notifying an inhabitant who has not yet evacuated (the non-evacuee 251) of the evacuable route obtained as described above will be described.

  A transmission signal including an identification number, disaster information, and transmission time is continuously transmitted to the evacuation route guidance system 100 from the wireless tag 301 carried by the resident 300 remaining in the evacuation guidance target facility 200 (step S21). The position information and disaster information registered in the evacuation route database 110 are updated (step S22).

  The evacuation route guidance system 100 monitors position information in the evacuation route database 110 according to the evacuation route generation program 104 and detects a resident 300 (unrefugee 251) remaining in the evacuation guidance target facility 200. The evacuation route guidance system 100 can evacuate the most suitable (pass the nearest) from the evacuable routes registered in the current evacuation route database 110 based on the detected current position of the unevacuated person 251. Determine the route. Further, the evacuation route guidance system 100 transmits information including information indicating the evacuable route determined to be optimal and the identification number of the wireless tag of the target non-evacuee 251 (step S23).

  The wireless tag 301 of the resident 300 compares the identification number included in the received information with the identification number assigned to the own device, and if they match (step S24), the evacuation route is based on the evacuation route information. Is presented (step S25). If they do not match, the wireless tag 301 discards the received information.

  Next, with reference to FIG. 5, the response of the resident 300 who cannot evacuate by himself will be described.

  Steps S31 to S34 from determination of the existence of an unevacuated person, transmission / reception of evacuable route information, and presentation of an evacuable route are the same as S21 to S24 in FIG.

  If the resident 300 is in a state where it is impossible to escape on its own, such as a decrease in consciousness due to a disaster, inability to walk, or underlaying a building (step S35), a certain period of time has passed since the information indicating the evacuable route was transmitted. Even so, the position information is not changed or hardly changed. After transmitting the evacuable route information, the evacuation route guidance system 100 monitors the movement of the resident 300 as the transmission destination, and determines that the person cannot escape by himself / herself if the movement amount within a predetermined time is small. Then, a warning message is displayed on the screen of the central processing unit 105, a warning sound is emitted or a voice notification is given, position information and disaster information are presented, and the manager is encouraged to respond. The manager informs the person in charge of rescue that there is a rescuer with a high priority among the responders (step S36).

  As described above, in the evacuee guidance system according to the present embodiment, the evacuable route is obtained based on the evacuee's existing evacuee route and the disaster information, and the obtained evacuable route is presented to the non-evacuated people. can do. In this evacuee guidance system, the evacuable route is determined based on the evacuation route of the already evacuated people who have actually completed evacuation. can do.

  Next, a process when a change occurs on the evacuable route due to a disaster state that changes every moment will be described in detail. Here, the evacuee evacuation route acquired at time M is as shown in FIG. 6A, and the evacuation evacuation route acquired at time M + N is shown in FIG. 6B. Assume that it was as shown.

  Looking at FIG. 6 (a), at this point, area A → area D → exit 1 (route R101), area B → area D → exit 1 (route R102), and area C → area E → exit 2 (route). R103), the already-evacued evacuation route information indicating the three safe evacuation routes is obtained. In addition, looking at FIG. 6 (b), at this point in time, the information of two evacuee routes, that is, area D → exit 1 (route R112) and area B → area E → exit 1 (route R111 + R113) is obtained. . However, the routes R112 and R113 are at a level that is determined to be unsuitable as an evacuation route from the disaster information obtained when an already evacuated person passes there and the disaster information from the resident 300 who is currently evacuating.

  Therefore, according to the evacuation route generation program 104, the evacuation route guidance system 100 uses the evacuation route C → E → exit 2 (route) at time M as an evacuation route to be presented to non-evacuees located in the area B after time M + N. R103) and the evacuable route B → E (route R111) at time M + N are combined to generate a new evacuable route as shown in FIG. That is, the evacuation route guidance system 100 presents the area B → the area E → the exit 2 (route R121) to the unevacuated people who remain in the area B as evacuable routes. Further, the evacuation route guidance system 100 registers the evacuable route information indicating the generated evacuable route in the evacuation route database 110, and corrects or deletes the evacuable route information related to the routes R101 and R102 registered in the evacuation route database 110. Is done. As a result, the unevacued people who were left in the area B were previously evacuable routes, but now they evacuate by following the evacuation route that seems safer, avoiding the evacuation route considered to be dangerous. be able to.

  Next, another example corresponding to a change in the disaster situation will be described with reference to FIG.

  7A shows the already-evacuated evacuation route acquired at time P, and FIG. 7B shows the already-evacuated evacuation route acquired at time P + Q.

  Referring to FIG. 7 (a), at time P, the two routes of area F → area G → area H → exit (route R201) and area F → area I → exit (route R202) are safe, The danger of one route of area F → area K → exit (route R203) is obtained from the disaster information from the existing evacuee and the disaster information from the resident 300 who is currently evacuated. Referring to FIG. 7B, at time P + Q, area F → area G → area H → exit (route R211) is a safe route, and area F → area I → exit (route R212). It is obtained from the disaster information from the already evacuees and the disaster information from the residents 300 who are currently evacuated that the route has an increased risk.

  In such a situation, the evacuation route guidance system 100 obtains the rate of increase in risk in the route R212 (= R202) between these times from the disaster information at the times P and P + Q according to the refugee route generation program 104, The limit time P + Q + R that can be evacuated relatively safely (before the human body is affected) is obtained. Then, the evacuation route guidance system 100 presents the region F → the region I → the exit (route R212) as the shortest evacuable route to the non-evacuated persons who remain in the region F from the limit time P + Q to the time P + Q + R. At this time, it is desirable to present together that the degree of risk of the route R212 is increasing and that the route R211 is more detour but safer. Further, the evacuation route guidance system 100 also registers in the evacuation route database 110 information indicating that the route R202 (= R212) is an evacuable route until time P + Q + R.

  After the limit time P + Q + R, the evacuation route guidance system 100 presents the evacuable route indicating the region F → the region G → the region H → the exit (route R211) to the non-evacuated persons who remain in the region F. At this time, the evacuation route guidance system 100 may remove information indicating that the route R212 is an evacuable route from the evacuation route database 110.

  If new already-evacued person route information or disaster information is obtained from time P + Q to time P + Q + R, the evacuable route information registered in the evacuation route database 110 is changed and corrected accordingly, and then presented. The evacuable route to be made can be changed.

  As described above, the evacuee guidance system according to the present embodiment grasps the disaster situation that changes from moment to moment based on the disaster information from the disaster information sense unit 311 of the wireless tag carried by the already evacuees, Correspondingly, a part of the old evacuable route and a part of the newer evacuable route are combined to generate the latest evacuable route, or a change in the disaster situation after a certain time is predicted and it becomes inappropriate. Or delete the route that would have been removed from the old evacuable route. Thereby, the evacuee guidance system according to the present embodiment can present a safer evacuable route to the non-evacuees in real time.

  The evacuee guidance system according to the present embodiment obliges all residents to carry the wireless tag 301 having the disaster information sensing unit 311 so that the residents can be installed even in locations where disaster information sensors cannot be installed. If it is a place where 300 goes in and out, the disaster situation can be grasped. As a result, a safer evacuable route can be presented to non-evacuated persons. This is particularly effective in vast facilities (exhibition halls, stadiums, power plants, play facilities, beaches, forest facilities), and the effect is remarkable.

  In addition, the evacuee guidance system according to the present embodiment is blocked on all sides from the unevacuated people who are evacuating, the unevacuated people who are not aware of oxygen deficiency, and changes in the surrounding disaster situation. There is also an effect that an evacuation priority target such as an unevacuated person who cannot move can be determined.

  Next, a second embodiment of the present invention will be described in detail with reference to FIGS. Here, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The evacuee guidance system according to the present embodiment is different from the system of FIG. 1 described above in that a global positioning system (GPS) is used to determine the position of the wireless tag.

  Specifically, the evacuation route guidance system 500 of the refugee guidance system according to the present embodiment is different from the evacuation route guidance system 100 according to the first embodiment in that it does not have the position specifying program 102.

  In addition, in the evacuation guidance target facility 600, at least one radio wave transmitter / receiver 672 capable of wireless communication with the wireless tag 701 is provided instead of the plurality of wireless tag transmitters / receivers 201-204 for enabling triangulation. Is provided. In addition, when indoors are included in the evacuation guidance target facility 600, it is necessary to devise such as combining with the system according to the first embodiment.

  In addition to the configuration of the wireless tag 301 in FIG. 1, the wireless tag 701 is provided with a position calculation unit 721 that obtains a position based on a signal received from the GPS satellite 671. Accordingly, the wireless tag 701 includes a radio wave receiving unit 714 for receiving both a signal transmitted from the GPS satellite 671 and a signal transmitted from the radio wave transmitter / receiver 672, and position information calculated by the position calculating unit 721. Is transmitted to the evacuation route guidance system 500 through the radio transmitter / receiver 672 together with the disaster information, etc., instead of the radio wave receiver 314 and the radio wave transmitter 313.

  The operation of the evacuee guidance system according to the present embodiment is basically the same as the operation of the evacuee guidance system in the first embodiment. As a representative example, acquisition of evacuation route information and generation of an evacuable route 661 for the already evacuated people 611-613 will be described.

  The radio wave receiver 714 of the wireless tag 701 carried by the resident 700 receives signals transmitted from a plurality of GPS satellites 671 and passes the received signals to the position calculator 721. The position calculation unit 721 obtains the current position of the wireless tag 701 based on the radio wave arrival time difference between signals from a plurality of GPS satellites 671.

  The disaster information sense unit 311 collects information on surrounding disasters.

  The radio wave transmission unit 723 of the wireless tag 701 evacuates the transmission signal obtained by adding the identification number and the transmission time information to the disaster information from the disaster information sensing unit 311 and the position information from the position calculation unit 721 via the radio transceiver 672. It transmits to the route guidance system 500 (steps S41, S43).

  The evacuation route guidance system 500 registers information included in the signal transmitted from the wireless tag 701 in the evacuation route database 110 (steps S42 and S44).

  When the central processing unit 105 monitors the evacuation route database 110 according to the evacuation route generation program 104 and determines that the evacuation of the resident 700 is completed, the evacuation route 621-623 followed by the resident (ex-evacuated) and Based on the disaster information, the evacuable route information registered in the evacuation route database 110 is updated (step S45).

  When a disaster occurs, the evacuation route guidance system 500 transmits the evacuable route information registered in the evacuation route database 110 to the wireless tag 701 of the non-evacuated person 651 via the radio wave transmitter / receiver 672. The wireless tag 701 receives the evacuable route information by the radio wave receiving unit 714 and presents it to the resident 700 by the evacuable route presentation unit 312.

  Note that although the case where the dedicated radio wave transmitter / receiver 672 is used has been described in this embodiment, other transmitter / receivers such as a sensor network, a mobile phone base station, and a PHS base station can also be used. Even in such a case, it is not necessary to change the above-described operation flow or transmission / reception information.

  In the evacuee guidance system according to the present embodiment, as in the system according to the first embodiment, the disaster information that changes from moment to moment in a vast facility including a place where a disaster information sensor cannot be installed. Accordingly, a safer evacuation route can be presented to non-evacuated people.

  Further, in the evacuee guidance system according to the present embodiment, it is not necessary to obtain the position of each wireless tag 701 in the central processing unit 105 of the evacuation route guidance system 500, so that the processing burden can be reduced.

  As mentioned above, although this invention was demonstrated according to some embodiment, this invention is not limited to the said embodiment.

It is a block diagram which shows schematic structure of the evacuee guidance system which concerns on the 1st Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the normal evacuation route guidance system and a wireless tag in the refugee guidance system of FIG. It is a flowchart for demonstrating operation | movement of the evacuation route guidance system at the time of the disaster occurrence in the refugee guidance system of FIG. 1, and a wireless tag. 3 is a flowchart for explaining the operation of an evacuation route guidance system and a wireless tag when transmitting and receiving evacuable route information when a disaster occurs in the evacuee guidance system of FIG. 1. 3 is a flowchart for explaining the operation of an evacuation route guidance system and a wireless tag when a person who cannot evacuate by himself / herself occurs in the evacuee guidance system of FIG. 1. (A), (b) and (c) is a figure for demonstrating an example of the method of producing | generating an evacuable route based on the evacuee evacuation route and disaster information in two different time. (A), (b) and (c) is a figure for demonstrating the other example of the method of producing | generating an evacuable route based on the evacuee evacuation route and disaster information in two different time. It is a block diagram which shows schematic structure of the evacuee guidance system which concerns on the 2nd Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the evacuation route guidance system at the time of the disaster occurrence in the refugee guidance system of FIG. 8, and a wireless tag. It is a figure which shows the example of the evacuable route | root by the conventional refugee guidance system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Evacuation route guidance system 101 Radio tag reception program 102 Location specifying program 103 Evacuation route transmission program 104 Evacuation route generation program 105 Central processing unit 110 Evacuation route database 200 Evacuation guidance target facility 201-204 RFID tag transceiver 211-213 Evacuee 251 Evacuees 221-223 Evacuated evacuation routes 261 Evacuation possible routes 300 Residents 301 Wireless tags 311 Disaster information sense unit 312 Evacuation possible route presentation unit 313 Radio wave transmission unit 314 Radio wave reception unit 500 Evacuation route guidance system 600 Evacuation guidance target facility 611 -613 Evacuated 621-623 Evacuated evacuation route 661 Evacuation possible route 671 GPS satellite 672 Radio transmitter / receiver 701 Radio tag 714 Radio wave reception unit 721 Position calculation unit 723 Radio wave transmission unit

Claims (21)

A plurality of wireless tags including a disaster information sensing unit for acquiring disaster information and an evacuable route presentation unit for presenting an evacuable route;
Position specifying means for specifying the position of each of the plurality of wireless tags and generating position information;
An evacuation route database for registering the disaster information acquired by the disaster information sensing unit and the location information generated by the location specifying means in time series for each of the plurality of wireless tags;
An evacuation route guidance system for obtaining an evacuable route for another wireless tag based on the disaster information and the position information regarding at least one wireless tag registered in the database,
A refugee guidance system, wherein a resident of an evacuation guidance target facility carries the wireless tag to collect the disaster information and present the evacuable route using the wireless tag. In the evacuee guidance system according to claim 1,
The evacuation route guidance system is
The evacuee guidance system characterized by monitoring the position information registered in the evacuation route database and using the route indicated by the position information history of the wireless tag determined to have completed evacuation as an evacuable route candidate. In the evacuee guidance system according to claim 2,
The evacuation route guidance system is
The evacuee is characterized by determining whether or not the evacuable route candidate is appropriate based on the disaster information and registering route information representing the evacuable route candidate determined to be appropriate as evacuable route information in the evacuation route database. Guidance system. In the evacuee guidance system according to claim 3,
The evacuation route guidance system is
When determining the suitability of the evacuable route candidate, predicting the future suitability based on the temporal change of the disaster information, and registering information indicating the prediction result together with the evacuable route information in the evacuation route database. Evacuee guidance system. In the evacuee guidance system according to any one of claims 1 to 4,
The evacuation route guidance system is
The evacuee guidance system characterized by monitoring the position information registered in the evacuation route database and detecting the wireless tag that has not been evacuated. In the evacuee guidance system according to claim 5,
The evacuation route guidance system is
One or more evacuable route information is selected from the evacuable route information registered in the evacuation route database based on the position information of the wireless tag of the watch evacuation, and the selected evacuable route information is An evacuee guidance system characterized by transmitting to a wireless tag. In the evacuee guidance system according to claim 6,
The evacuation route guidance system is
When there are a plurality of the selected evacuable route information, a part of the evacuable route represented by the evacuable route information is combined to generate a new evacuable route, and the evacuation representing the generated evacuable route An evacuee guidance system, wherein possible route information is transmitted to the radio tag for seeing and evacuating. In the evacuee guidance system according to any one of claims 1 to 7,
The evacuation route guidance system is
An evacuee guidance system for determining whether or not a person carrying the wireless tag that has not been evacuated can evacuate by himself / herself based on a temporal change of the position information registered in the evacuation route database. In the evacuee guidance system according to any one of claims 1 to 8,
The position specifying means comprises:
A plurality of wireless tag transceivers installed in the evacuation guidance target facility;
A position specifying program for determining the position of the wireless tag based on a reception timing difference when the signals transmitted from the wireless tag are received by the plurality of wireless tag transceivers, and a central processing unit for executing the position specifying program;
An evacuee guidance system characterized by comprising: In the evacuee guidance system according to any one of claims 1 to 8,
The evacuee guidance system, wherein the position specifying unit includes a position calculation unit that is provided in the wireless tag and specifies a position of the wireless tag based on a signal transmitted from a GPS satellite. A wireless tag carried by a resident of the evacuation guidance target facility periodically acquires and transmits information on surrounding disasters;
A position specifying step of periodically specifying the position of the wireless tag and generating position information;
Registering the disaster information and the location information in an evacuation route database in time series for each wireless tag;
Monitoring the evacuation route database and determining evacuable route candidates based on the location information history of the wireless tag in which the location information indicates an evacuation completion location;
Determining whether or not the evacuable route candidate is appropriate based on the disaster information, and registering route information representing the evacuable route candidate determined to be appropriate in the evacuation route database as evacuable route information;
The evacuee guidance method characterized by including. In the evacuee guidance method according to claim 11,
In the step of registering in the evacuation route database,
When determining the suitability of the evacuable route candidate, the method includes a step of predicting the suitability of the future based on the time change of the disaster information and registering information indicating a prediction result in the evacuation route database together with the evacuable route information. An evacuee guidance method characterized by that. In the evacuee guidance method according to claim 11 or 12,
A method for guiding an evacuee further comprising the step of monitoring the position information registered in the evacuation route database and detecting the wireless tag that has not been evacuated. In the evacuee guidance method according to claim 13,
Further comprising causing the evacuable route information presentation unit of the unevacuated wireless tag to present the evacuable route represented by the evacuable route information selected from the evacuable route information registered in the evacuation route database. The evacuee guidance method characterized by this. In the evacuee guidance method according to claim 14,
When there are a plurality of selected evacuable route information, a part of the evacuable routes indicated by the evacuable route information is combined to generate a new evacuable route, and the generated evacuable route is presented. The evacuee guidance method further comprising the step of: In the evacuee guidance method according to claim 13, 14, or 15,
The evacuee guidance method further comprising the step of determining whether or not a person carrying the non-evacuated wireless tag can evacuate by himself / herself based on the time change of the position information. The position information indicating the position of the wireless tag and the disaster information sent from the wireless tag monitor the evacuation route database registered in time series for each wireless tag, and the position information indicates the evacuation completion position. Determining an evacuable route candidate based on the location information history of the wireless tag;
Determining whether or not the evacuable route candidate is appropriate based on the disaster information, and registering route information representing the evacuable route candidate determined to be appropriate in the evacuation route database as evacuable route information;
Evacuee guidance program to make computer run. In the evacuee guidance program according to claim 17,
When determining the suitability of the evacuable route candidate, predicting the future suitability based on the temporal change of the disaster information, and registering information indicating the prediction result in the evacuation route database together with the evacuable route information, Further, an evacuee guidance program for causing the electronic computer to execute. In the evacuee guidance program according to claim 17 or 18,
An evacuee guidance program for monitoring the position information registered in the evacuation route database and causing the electronic computer to further execute a step of detecting the wireless tag that has not been evacuated. In the evacuee guidance program according to claim 19,
The selected evacuable route for causing the evacuable route information presentation unit of the unevacuated wireless tag to present evacuable route information selected from the evacuable route information registered in the evacuation route database. An evacuee guidance program for causing the electronic computer to further execute a step of transmitting information. In the evacuee guidance program according to claim 19,
An evacuee guidance program for causing the electronic computer to further execute a step of determining whether or not a person carrying the unevacuated wireless tag can evacuate by himself / herself based on a time change of the position information.

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