Evacuation management system

Abstract

To provide a system that accurately and smoothly grasps the whereabouts (presence / absence and a location) of an evacuee at an evacuation facility without imposing a burden on the evacuee.SOLUTION: A first group transmitter 10 is installed respectively at a plurality of locations at an evacuation facility 2. Each of the first group transmitters 10 transmits a first group signal 13 containing unique first group identification information 13d. A portable second group transmitter 20 is distributed to each evacuee B. Each of the second group transmitters 20 transmits a second group signal 23 containing unique second group identification information 23d corresponding to the evacuee B. A person A2 in charge of roll-call carries a roll-call portable terminal 30 and circulates in the evacuation facility 2. At this time, the roll-call portable terminal 30 receives first group signals 13 and the second group signals 23. Location estimation means 51 estimates a location of each evacuee B based on the received first group signals 13 and the second group signals 23.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a management system for evacuees who have taken refuge in evacuation facilities during a disaster, and more particularly to an evacuation management system for confirming the location of evacuees. [Background technology]

[0002] It is important to check the presence of evacuees during a disaster. Generally, this is done in the following way: Prepare a paper list and have evacuees fill it out with their personal information. Based on the list that has been created, a roll call is conducted periodically or at appropriate times. In detail, the names on the list are called out, whether there is a response or not is checked, and the presence or absence is recorded and tallied.

[0003] Patent Document 1 discloses a method for measuring the position of a mobile terminal within a facility. A number of beacons are installed in the facility. Beacon radio waves from each beacon are received by the mobile terminal, and a virtual spring model is created based on the received radio wave intensity and beacon installation position information, and the point where the forces of the virtual springs are balanced is calculated as the position of the mobile terminal. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-100708 A Summary of the Invention [Problem to be solved by the invention]

[0005] When checking the presence of evacuees in evacuation facilities, manually taking roll calls and counting based on paper lists is time-consuming and there is a risk of missing people, ignoring responses, or making erroneous counts. It can also be a hassle for evacuees to respond to roll calls. In addition, while it is important to know the location of evacuees who require assistance, a roll call that only involves calling out their names and checking responses does not make it easy to know where each individual evacuee is in the evacuation facility. In view of the above circumstances, the present invention aims to provide a system that can accurately and smoothly ascertain the location (presence and location) of evacuees in evacuation facilities without imposing a burden on the evacuees. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides an evacuation management system for managing evacuees in an evacuation facility, a plurality of first group transmitters that are installed at a plurality of positions in the evacuation facility, each of which transmits a first group signal including unique first group identification information; a plurality of portable second group transmitters for transmitting second group signals including unique second group identification information respectively corresponding to each evacuee; one or more roll call portable terminals for receiving the first group signals and the second group signals; a location estimation means for estimating the location of each evacuee based on the received first group of signals and second group of signals; The present invention is characterized by comprising:

[0007] Preferably, the location estimation means includes a roll call position estimation unit that estimates the position of the roll call portable terminal based on received data of the first group signal and installation position information of a first group transmitter that transmits the first group signal, and an evacuee position estimation unit that estimates the position of the second group transmitter based on received data of the second group signal and the estimated position of the roll call portable terminal.

[0008] Preferably, the roll-call location estimation unit estimates in which of a plurality of areas into which the evacuation facility is divided the roll-call portable terminal is located; The evacuee estimation unit estimates in which area within the facility or outside the evacuation facility the second group transmitter is located.

[0009] Preferably, the roll call position estimation unit estimates the position of each of a plurality of roll call portable terminals, The evacuee position estimation unit estimates the position of the second group transmitter that transmitted the common second group signal based on the received data of the common second group signal by the multiple roll call portable terminals and the estimated positions of each roll call portable terminal.

[0010] Preferably, the location estimating means is configured with a server computer capable of communicating with the roll call portable terminal. The location estimation means may be configured by the roll call portable terminal or another terminal within the evacuation facility. In recent years, the battery life of mobile devices and other devices has improved, portable large-capacity batteries have become more widespread, and it is now possible to obtain electricity from the batteries of electric vehicles. Therefore, electricity is now available even during disasters, and evacuation management systems that are based on the use of electronic devices can function sufficiently. Effect of the Invention

[0011] According to the present invention, the location (presence or absence, location, etc.) of evacuees in evacuation facilities can be grasped accurately and smoothly, without imposing a burden on the evacuees. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is an explanatory diagram showing an overview of an evacuation management system according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a block diagram showing a schematic configuration of the evacuation management system. [Diagram 3] FIG. 3 is a flowchart showing an outline of a registration process of evacuee information, second group identification information, and the like in the evacuation management system. [Figure 4]FIG. 4 is a flowchart showing an outline of the roll call and counting process in the evacuation management system. [Diagram 5] FIG. 5 is a subroutine flowchart showing an overview of the location estimation process in the flowchart of FIG. [Figure 6] FIG. 6 is an explanatory diagram showing an overview of an evacuation management system according to a second embodiment of the present invention. [Figure 7] FIG. 7 is a block diagram showing a schematic configuration of the evacuation management system according to the second embodiment. [Figure 8] FIG. 8 is an explanatory diagram showing an overview of an evacuation management system according to a third embodiment of the present invention. [Figure 9] FIG. 9 is a block diagram showing a schematic configuration of an evacuation management system according to the fourth embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. <First embodiment (FIGS. 1 to 5)> As shown in Figure 1, the evacuation management system 1 is a system for managing the location (presence and location) of evacuee B who has evacuated to an evacuation facility 2 in the event of a disaster to assist in providing support, and is equipped with a plurality of first group transmitters 10, a plurality of second group transmitters 20, a management terminal 30, a roll call portable terminal 40, and a server computer 50.

[0014] 1, first group transmitters 10 are installed at multiple positions 2p in the evacuation facility 2. Preferably, the first group transmitters 10 are distributed and arranged within the evacuation facility 2. More preferably, the installation positions 2p of each first group transmitter 10 are selected according to the layout of the evacuation facility 2, etc., so that the first group signals 13 from the multiple first group transmitters 10 cover the entire area of ​​the evacuation facility 2.

[0015] It should be noted that evacuation facility 2 is not particularly limited as long as it is a place established for evacuees B to take refuge in, and is not limited to public evacuation sites designated by the area such as community centers and gymnasiums, but may also be temporary evacuation sites such as train stations or their surrounding areas, large commercial facilities, etc. Train stations or their surrounding areas may be the initial location for evacuees to stay, and are considered to be the places where the first information on the safety of evacuees after a disaster occurs (roll calls) is likely to be conducted.

[0016] As shown in Fig. 2, the first group transmitter 10 includes a transmitter circuit 11 that transmits the first group signal 13, and a battery 12. Preferably, the first group transmitter 10 is configured by a proximity communication device that transmits the first group signal 13 by short-range radio waves. Examples of the proximity communication device include a Bluetooth beacon, an RFID tag, and an NFC card. The effective propagation distance of the short-range radio waves from the proximity communication device is preferably about one meter to several tens of meters. Note that "Bluetooth" is a registered trademark.

[0017] The first group signal 13 includes unique identification information (first group identification information 13d) for each first group transmitter 10. The first group identification information 13d of the multiple first group transmitters 10 is different from one another. Preferably, the first group identification information 13d has the same major classification code and different sub-classification codes.

[0018] As shown in FIG. 1, the second group transmitter 20 is a small piece-sized transmitting device that can be carried by each evacuee B. As shown in FIG. 2, the second group transmitter 20 includes a transmitting circuit 21 that transmits the second group signal 23, and a battery 22. Preferably, the second group transmitter 20 is configured by a proximity communication device that transmits the second group signal 23 by short-range radio waves. Examples of proximity communication devices that constitute the second group transmitter 20 include Bluetooth beacons, RFID tags, and NFC cards. The second group signal 23 includes identification information (second group identification information 23d) unique to each second group transmitter 20. The second group identification information 23d of each second group transmitter 20 is an identification code corresponding to the evacuee carrying that second group transmitter 20. The second group identification information 23d of the multiple second group transmitters 20 are different from each other. Preferably, the second group identification information 23d have the same major classification code and different sub-classification codes.

[0019] The first group of identification information 13d and the second group of identification information 23d are different from each other. Preferably, the first group of identification information 13d and the second group of identification information 23d are different not only in the subdivision code but also in the major division code.

[0020] As shown in Fig. 1, the management terminal 30 is operated by a manager A or a receptionist A1 of the evacuation facility 2, and is configured as a general-purpose computer such as a notebook computer or a desktop computer having a physical keyboard 31 and a display 32. As shown in Fig. 2, a management program 39 is stored in the management terminal 30. The management program 39 causes the management terminal 30 to execute a process of creating evacuee information Bd, a process of receiving second group identification information 23d, a process of linking the evacuee information Bd and the second group identification information 23d, and a process of uploading to the server computer 50 (see Fig. 3).

[0021] As shown in Fig. 1, the roll call portable terminal 40 is carried by the manager A or the roll call person A2 of the evacuation facility 2, and is configured with a portable computer such as a smartphone, tablet, or notebook computer. As shown in Fig. 2, a roll call program 49 is stored in the roll call portable terminal 40. The roll call program 49 causes the roll call portable terminal 40 to execute a process of receiving the first group signal 13 and the second group signal 23, and a process of transmitting the received first group signal 13 and the second group signal 23 to the server computer 50.

[0022] As shown in FIG. 1, the management terminal 30 and the roll call portable terminal 40 are capable of communicating with a server computer 50 via a public communication network 4 such as the Internet. As shown in FIG. 2, the storage unit 54 of the server computer 50 is provided with a first group information storage area 54a and a second group information storage area 54b, and also stores an evacuation management program 59.

[0023] 2, the first group information storage area 54a stores first group identification information 13d for each first group transmitter 10 in association with information on the position 2p where the first group transmitter 10 is installed (installation position information 2pd). The first group identification information 13d and the installation position information 2pd may be registered in the server computer 50 in advance in preparation for a disaster, or may be input by the management terminal 30 and uploaded to the server computer 50 when a disaster occurs.

[0024] In the second group information storage area 54b, the second group identification information 23d received from the management terminal 30 is stored in association with the evacuee information Bd.

[0025] 2, the evacuation management program 59 causes the server computer 50 to function as a location estimation means 51 that estimates the location of each evacuee B, and as a counting means 56. The location estimation includes estimating whether or not the evacuee B is in the evacuation facility 2 (presence), and if so, estimating where the evacuee B is in the evacuation facility 2 (location). The location estimation means 51 includes a roll call position estimation unit 52 and an evacuee position estimation unit 53. The roll call position estimation unit 52 executes a process to estimate the position of the roll call portable terminal 40. The evacuee position estimation unit 53 executes a process to estimate the position of the second group transmitter 20, and therefore the position of the evacuee B.

[0026] The counting means 56 executes a process of counting the location estimation results of each evacuee B. The counting process includes a process of calculating the number of evacuees present in the evacuation facility 2, the number of evacuees whose whereabouts are unknown, and the like.

[0027] The evacuation management system 1 is used for evacuation management, for example, in the following manner. As shown in Fig. 1, at the reception desk of the evacuation facility 2, a receptionist A1 asks for personal information such as the name, sex, and need for assistance of each evacuee B, and inputs the information into a management terminal 30. As a result, evacuee information Bd is created (step 101), as shown in the flowchart of Fig. 3.

[0028] In exchange, the receptionist A1 distributes the second group transmitter 20 to the evacuee B. When distributing the second group transmitter 20, the receptionist A1 reads the second group identification information 23d of the second group transmitter 20 and inputs it to the management terminal 30. At that time, a dedicated or general-purpose information reading device may be connected to the management terminal 30 to read the second group identification information 23d, or the management terminal 30 may have a function for receiving a second signal including the second group identification information 23d. The second group identification information 23d may be printed on the outer surface of the second group transmitter 20, and the receptionist A may read it and input it to the management terminal 20.

[0029] The management terminal 30 receives the second group identification information 23d (step 102) and links the second group identification information 23d to the refugee information Bd (step 103). In detail, the management terminal 30 links the identification information of the second group transmitter 20 distributed to each refugee B to the refugee information Bd of that refugee B.

[0030] The created evacuee information Bd and the second group identification information 23d linked thereto are uploaded from the management terminal 30 to the server computer 50 at any time (step 104). The server computer 50 registers the uploaded information Bd, 23d in the second group information storage area 54b (step 105).

[0031] Evacuee B carries the distributed second group transmitter 20 by attaching it to a helmet, placing it in a bag that he or she carries with him or her at all times, or storing it in a clothing pocket.

[0032] 4, the first group signals 13 are transmitted from each of the first group transmitters 10 in the evacuation facility 2 (step 111). The transmission interval of the first group signals 13 is from less than one second to about several seconds. The second group signals 23 are transmitted from the second group transmitters 20 of each of the evacuees B (step 112). The transmission intervals of the second group signals 23 are from less than one second to about several seconds.

[0033] The roll call person A2 periodically or irregularly performs a digital roll call operation using the evacuation management system 1. Specifically, the roll call person A2 starts up the roll call program 49 of the roll call portable terminal 40 (step 120), and then carries the roll call portable terminal 40 and patrols the evacuation facility 2. Preferably, the roll call person A2 patrols the evacuation facility 2 thoroughly.

[0034] At this time, the roll call portable terminal 40 receives the first group signal 13 from the first group transmitter 10 within the effective propagation distance, and also receives the second group signal 23 from the second group transmitter 20 within the effective propagation distance (step 121). Preferably, the roll call portable terminal 40 receives the first group signal 13 and the second group signal 23 simultaneously.

[0035] The roll call portable terminal 40 transmits the reception data of the first group signal 13 and the second group signal 23 to the server computer 50 (step 122). The reception data of the first group signal 13 includes the first group identification information 13d, the received radio wave intensity (RSSI) of the first group signal 13, and the reception time. The reception data of the second group signal 23 includes the second group identification information 23d, the received radio wave intensity (RSSI) of the second group signal 23, and the reception time. Preferably, the roll call portable terminal 40 attaches its own unique identification information to the data to be transmitted. The transmission timing may be each time the data is received, at regular intervals, each time the amount of data reaches a predetermined amount, or may be transmitted all at once when the round is completed. After transmitting the reception data of the first group signal 13, the reception data of the second group signal 23 may be transmitted.

[0036] The server computer 50 receives the reception data of the first group signal 13 and the second group signal 23 from the roll call portable terminal 40 (step 123). Next, the server computer 50 as the location estimation means 51 estimates the location (presence or absence, whereabouts) of each evacuee B based on the received data (step 130). As shown in the subroutine of Fig. 5, the location estimation process is performed in two stages: estimating the location of the roll call portable terminal 40 (step 131) and estimating the location of the second group transmitter 20 (step 132).

[0037] First, the roll-call position estimation unit 52 estimates the position of the roll-call portable terminal 40 based on the reception data (first group identification information 13d, received radio wave intensity, time) of the first group signal 13 and the installation position information 2pd of the first group transmitter 10 that is the transmission source of the first group signal 13. The installation position information 2pd is read from the first group information storage area 54a.

[0038] As an estimation method, for example, the virtual spring model of Patent Document 1 can be used. Specifically, a virtual spring is assumed for each of the multiple first group signals 13 received at the same time. The natural length of each virtual spring is set according to the received radio wave intensity of the corresponding first group signal 13. The start end of each virtual spring is virtually placed at the installation position of the corresponding first group transmitter 10. The ends of the multiple virtual springs are virtually connected at one junction point. The junction point is virtually placed at a predetermined initial position and released. The position where the movement of the junction point converges after the release is estimated to be the position of the roll call portable terminal 40 at the aforementioned time. Instead of using the virtual spring model, estimation may be performed in the manner of general triangulation.

[0039] Next, the evacuee position estimation unit 53 estimates the position of the second group transmitter 20 and ultimately the position of the evacuee B carrying the second group transmitter 20 based on the received data of the second group signal 23 (second group identification information 23d, received radio wave strength, time) and the estimated position of the roll call portable terminal 40.

[0040] Specifically, for example, the second group transmitter 20 that is the source of the second group signal 23 received at a certain time is estimated to be located at a position away from the estimated position of the roll call portable terminal 40 at that time by a distance according to the received radio wave strength. The source second group transmitter 20 is identified by the second group identification information 23d in the second group signal 23. It is assumed that the greater the received radio wave strength I of the second group signal 23, the smaller the distance D from the roll call portable terminal 40 to the second group transmitter 20. For example, if the propagation space of the second group signal 23 is an ideal space without obstacles, the distance D is calculated by the following formula. A=(PI) / 20 (1) D=10 A (2) In Equation 1, P is the transmission power of the second group signal 23 at a point 1 meter away from the second group oscillator 20.

[0041] This makes it possible to estimate the range (approximate location) of evacuees B corresponding to each second group identification information 23d from the position of roll call person A2. Furthermore, it is possible to confirm that the evacuees B are within the evacuation facility 2. For evacuees B corresponding to second group identification information 23d that have never been received during the round, it can be assumed that they are not within the evacuation facility 2. In this way, the whereabouts (presence and location) of each evacuee B can be estimated.

[0042] A digital roll call is completed when the roll call person A2 makes a tour of the evacuation facility 2. Thereafter, as shown in the flow chart of FIG. 4, for example, a tally report request is transmitted from the roll call portable terminal 40 to the server computer 50 (step 140).

[0043] In response to this, the server computer 50 as the counting means 56 counts the location estimation results (step 141). For example, the number of evacuees in the evacuation facility 2 and the number of evacuees whose whereabouts are unknown are calculated. The evacuees may be classified by age, sex, need for assistance, etc. and counted. The tally result is returned from the server computer 50 to the roll call portable terminal 40 (step 142) and is displayed on the display of the roll call portable terminal 40 (step 143). This allows the roll call person A2 to confirm the tally result.

[0044] In this way, according to the evacuation management system 1, the roll call person A2 can reliably and smoothly confirm the location of the evacuee B by simply walking around the evacuation facility 2. There is no need to call out the names of each evacuee B written on a list, and there is no need to check and record whether or not there is a response. This simplifies the roll call work and reduces the burden on the roll call person A2. There is no risk of missing a roll call, overhearing a response, or making a recording error, so the reliability of location confirmation can be increased. For evacuee B, the burden is reduced as there is no need to respond to the roll call.

[0045] According to the evacuation management system 1, it is possible to confirm not only whether each evacuee B is in the evacuation facility 2, but also the approximate location within the evacuation facility 2. Therefore, for example, when dealing with an evacuee who requires assistance, it is possible to reduce the effort of searching for the location of the evacuee. A map of the evacuation facility showing the location of the evacuees who require assistance may be created.

[0046] Furthermore, because the collected information is digitized, it is easy to compile and there is no risk of miscounting. It is also easy to compile information by attributes such as the age, sex, and need for assistance of the evacuees. Therefore, for example, it is easy to calculate the amount of relief supplies (clothing, milk, sanitary products, etc.) required according to age and sex, making it possible to provide appropriate support according to the circumstances of each evacuee. This can be useful in improving the quality of life (QOL) of evacuees. Furthermore, information can be easily shared with other evacuation facilities, government offices, hospitals, etc., making it easy to know, for example, which evacuees have moved to other evacuation facilities or returned home. The number of evacuees in an evacuation facility may be compared with the number of people that can be accommodated to generate accommodation margin information.

[0047] Next, another embodiment of the present invention will be described. In the following embodiment, the same reference numerals are given to the same components as those in the above-described embodiment, and the description thereof will be omitted. <Second embodiment (FIGS. 6 to 7)> As shown in FIG. 6, in the evacuation management system 1B according to the second embodiment of the present invention, for data processing, the evacuation facility 2 is located within the area indicated by the dashed and dotted line L in FIG. 2e The facility is divided into a plurality of virtual in-facility areas 2e separated by partitions. At least one first group transmitter 10 is installed in each of the in-facility areas 2e. As shown in Fig. 7, the first group information storage area 54a of the storage unit 54 of the server computer 50 stores, in association with each other, first group identification information 13d for each first group transmitter 10 and area identification information 2ed that identifies the in-facility area 2e in which the first group transmitter 10 is installed.

[0048] In the second embodiment, when the roll call person A2 makes his rounds, the roll call portable terminal 40 of the evacuation management system 1B receives the first group of signals 13 and the second group of signals 23 and transmits the received data to the server computer 50, which receives it, similar to the first embodiment (Figures 1 to 5).

[0049] The roll call location estimation unit 52 of the server computer 50 estimates in which facility area 2e the roll call portable terminal 40 is located based on the received data of the first group signal 13 (first group identification information 13d, received radio wave strength, time) and the installation location information 2pd of the first group transmitter 10.

[0050] For example, if only one first group signal 13 is received at a certain time, the facility area 2e specified by the area identification information 2ed linked to the first group identification information 13d in the first group signal 13 is set as the estimated location of the roll call portable terminal 40 at that time. If multiple first group signals 13 are received at a certain time, the facility area 2e specified by the area identification information 2ed linked to the first group identification information 13d of the first group signal 13 with the highest received radio wave intensity among the multiple first group signals 13 is set as the estimated location of the roll call portable terminal 40 at that time. The area identification information 2ed linked to the first group identification information 13d is read from the first group information storage area 54a. Therefore, the roll call position estimation unit 52 only needs to execute a process of reading the linked information, and almost no calculation process is required, which simplifies the roll call position estimation process.

[0051] Next, the evacuee estimation unit 53 estimates the area 2e within the facility where the second group transmitter 20 is located based on the received data of the second group signal 23 and the estimated location of the roll call mobile terminal 40. Specifically, the second group transmitter 20, which is the source of the second group signal 23 received at a certain time, and the evacuee B are estimated to be in the area 2e within the facility that is the estimated location of the roll call mobile terminal 40 at that time. The second group transmitter 20, which is the source of the second group signal 23 that has never been received during the patrol, and the evacuee B are estimated to be outside the evacuation facility (not in the evacuation facility 2). Therefore, the evacuee estimation unit 53 only needs to mainly perform the process of checking the reception time of the received data and the process of reading the identification information, and almost no calculation process is required. This simplifies the process of estimating the location of the second group transmitter 20 and the evacuee B.

[0052] <Third embodiment (FIG. 8)> As shown in Fig. 8, an evacuation management system 1C according to a third embodiment of the present invention is provided with a plurality of (e.g., three) roll call portable terminals 40. A plurality of (e.g., three) roll call personnel A2 each carry a roll call portable terminal 40 and simultaneously patrol the evacuation facility 2 to perform roll call operations. Preferably, the times of the built-in clocks of these roll call portable terminals 40 are synchronized when patrolling. Each roll call portable terminal 40 receives the first group signal 13 and the second group signal 23, and transmits the received data together with the unique identification information of the roll call portable terminal 40 (its own device) to the server computer 50. This is received by the server computer 50.

[0053] The roll call position estimation unit 52 of the server computer 50 estimates the positions of each of the three (plural) roll call portable terminals 40. As an estimation method, a method using a virtual spring model similar to the first embodiment (FIGS. 1 to 5), a triangulation method, or the like can be applied.

[0054] Next, the evacuee position estimation unit 53 estimates the position of the second group transmitter 20 that is the source of the common second group signal 23, based on the reception data of the common second group signal 23 by the three (plural) roll call portable terminals 40 and the estimated positions of each roll call portable terminal 40. Whether or not it is a common second group signal 23 is determined based on whether or not the second group identification information 23d in the signal matches. As an estimation method, a method using the virtual spring model, a triangulation method, etc. can be applied.

[0055] In the method using the virtual spring model, a virtual spring is assumed for each of the second group signals 23 having the same second group identification information 23d received by three (multiple) roll call portable terminals 40 at the same time. The natural length of each virtual spring is set according to the radio wave intensity of the second group signal 23 received by the corresponding roll call portable terminal 40. The starting end of each virtual spring is placed at the estimated position of the corresponding roll call portable terminal 40. The ends of the multiple virtual springs are virtually connected to each other at one junction point. The junction point is virtually placed at a predetermined initial position and released. The position where the movement of the junction point after release converges is estimated to be the position of the second group transmitter 20 that is the source of the common second group signal 23 at the time. This makes it possible to more accurately estimate the position of the evacuee B carrying the second transmitter 20.

[0056] By performing a similar estimation process on each of the received second group signals 23, the position of each evacuee B within the evacuation facility 2 can be estimated. For the evacuee B corresponding to the second group of identification information 23d that has never been received by any of the roll call portable terminals 40 of the roll call personnel A2 during the rounds, it is presumed that the evacuee B is not present within the evacuation facility 2.

[0057] <Fourth embodiment (FIG. 9)> 9 shows an evacuation management system 1D according to a fourth embodiment of the present invention. In the evacuation management system 1D, a roll call mobile terminal 40 has the same evacuation management function as a server computer 50.

[0058] In detail, the storage unit 44 of the roll call portable terminal 40 is provided with a first group information storage area 44a and a second group information storage area 44b, and stores an evacuation management program 45. The first group information storage area 44a stores first group identification information 13d for each first group transmitter 10 in association with installation position information 2pd. The second group information storage area 44b stores second group identification information 23d in association with evacuee information Bd.

[0059] The evacuation management program 45 causes the roll call portable terminal 40 to function as a location estimation means 41 and a counting means 46. The location estimation means 41 includes a roll call position estimation unit 42 and an evacuee position estimation unit 43. The roll call position estimation unit 42 executes a process to estimate the position of the own device (roll call portable terminal 40) within the evacuation facility 2. The evacuee position estimation unit 43 executes a process to estimate the position of the second group transmitter 20, and therefore the position of the evacuee B. The estimation method may be the same as that of the first embodiment (FIGS. 1 to 5) or the second embodiment (FIGS. 6 to 7). By adopting an estimation method similar to that of the second embodiment, the load on the roll call portable terminal 40 can be reduced. The counting means 56 executes a process of counting the location estimation results of each evacuee B.

[0060] In the fourth embodiment, similarly to the third embodiment (FIG. 8), a plurality of roll call portable terminals 40 may be prepared, and a plurality of roll call personnel A2 may simultaneously make rounds (digital roll calls). One of the plurality of roll call portable terminals 40 may have the same evacuation management function (evacuee location estimation function and tallying function) as the server computer 50.

[0061] In the evacuation management system 1D of the fourth embodiment, the evacuation management process can be executed by only the electronic devices 10-40 in the evacuation facility 2, excluding the server computer 50. Therefore, even in a situation where the network 4 and other communications are cut off, for example, a standalone evacuation management system can be constructed in the evacuation facility 2.

[0062] The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the roll call portable terminal 40 may also function as the management terminal 30. In the stand-alone evacuation management system of the fourth embodiment (FIG. 9), the management terminal 30 in the evacuation facility 2 or other terminals may include a location estimation means and have the same evacuation management function as the server computer 50. In the first embodiment (FIGS. 1 to 5), the third embodiment (FIG. 8), or the fourth embodiment (FIG. 9), as in the second embodiment (FIGS. 6 to 7), the evacuation facility 2 may be divided into a plurality of virtual in-facility areas 2e (see FIG. 6), and the second group transmitter 20 that transmits the second group signal 23 and thus the evacuee B may be estimated in which in-facility area 2e. In this case, the area identification information 2ed is stored in the first group information storage areas 54a, 44a. The area identification information 2ed may define the corresponding in-facility area 2e in coordinates with an arbitrary location in the evacuation facility 2 as the origin. After the roll call position estimation unit 52, 42 estimates the position (coordinates) of the roll call portable terminal 40, the position of the roll call portable terminal 40 and the area identification information 2ed may be compared to estimate which in-facility area 2e the roll call portable terminal 40 is located in. [Industrial Applicability]

[0063] The present invention can be applied to a computer system that supports evacuees who have taken refuge in evacuation facilities in the event of a disaster. [Explanation of symbols]

[0064] A. Evacuation facility manager A2 Roll call officer B evacuee Bd evacuee information 1 Evacuation Management System 1B, 1C, 1D Evacuation Management System 2. Evacuation facilities 2e Facility area 2ed Area Identification Information 2p installation position 2pd installation location information 10 First group transmitter 13 First Group Signal 13d Group 1 Identification Information 20 Second group transmitter 23 2nd Group Signal 23d Group 2 Identification Information 40 Mobile terminal for roll call 41 Location estimation means 42 Roll call position estimation unit 43 Evacuee position estimation section 45 Evacuation Management Program 46 Method of calculation 49 Roll Call Program 50 Server Computers 51 Location estimation means 52 Roll call position estimation unit 53 Evacuee position estimation section 56 Aggregation methods 59 Evacuation Management Program

Claims

1. An evacuation management system for managing evacuees in an evacuation facility, a plurality of first group transmitters that are installed at a plurality of positions in the evacuation facility, each of which transmits a first group signal including unique first group identification information; a plurality of portable second group transmitters for transmitting second group signals including unique second group identification information respectively corresponding to each evacuee; one or more roll call portable terminals for receiving the first group signals and the second group signals; a location estimation means for estimating the location of each evacuee based on the received first group of signals and second group of signals; An evacuation management system comprising:

2. 2. The evacuation management system of claim 1, wherein the location estimation means includes a roll call position estimation unit that estimates the position of the roll call portable terminal based on the received data of the first group signal and installation position information of a first group transmitter that transmits the first group signal, and an evacuee position estimation unit that estimates the position of the second group transmitter based on the received data of the second group signal and the estimated position of the roll call portable terminal.

3. the roll-call location estimation unit estimates in which of a plurality of areas into which the evacuation facility is divided the area in which the roll-call portable terminal is located; The evacuation management system according to claim 2 , wherein the evacuee estimation unit estimates in which area within a facility or outside an evacuation facility the second group transmitter is located.

4. The roll-call position estimation unit estimates the position of each of a plurality of roll-call portable terminals, The evacuation management system described in claim 2, wherein the evacuee position estimation unit estimates the position of the second group transmitter from which the common second group signal is transmitted based on the received data of the common second group signal by the multiple roll call portable terminals and the estimated positions of each roll call portable terminal.

5. 2. The evacuation management system according to claim 1, wherein the location estimation means is configured by a server computer capable of communicating with the roll call portable terminal.

6. 2. The evacuation management system according to claim 1, wherein the location estimation means is configured by the roll call portable terminal or another terminal in the evacuation facility.

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