JP2013073300A - Emergency evacuation guidance system, emergency evacuation guidance method, evacuation guidance device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency evacuation guidance system and the like that detect the state of visitor congestion and areas that are dangerous to pass through in the case of a disaster, allocate evacuation routes so that the concentration of evacuees on specific routes can be avoided, and present the evacuation routes to users in consideration of other users in the same groups as them.SOLUTION: When an evacuation guidance device 11 receives information indicating the occurrence of a disaster from a disaster detection sensor 15, it determines an area of a facility in which the disaster occurs. The evacuation guidance device 11 receives the location of each terminal 3 from a location detection device 7, computes the congestion level of each area of the facility, and determines congested areas. When the evacuation guidance device 11 receives a request for evacuation guidance from a terminal 3, it decides an appropriate evacuation route considering the congested areas and the group information of the user. When any other terminal 3 in the same group as the requesting terminal 3 is in the vicinity of the requesting terminal 3, the evacuation guidance device 11 allocates the same evacuation route as the requesting terminal 3 to the vicinal terminal 3. The evacuation guidance device 11 sends the decided evacuation route to the terminal 3.

Description

  The present invention relates to an emergency evacuation guidance system and the like for guiding visitors to a facility to an emergency exit.

  When disasters such as fires and earthquakes occur in indoor facilities such as department stores and shopping malls, it is necessary to efficiently and safely guide visitors to emergency exits.

  Patent Document 1 discloses a method of detecting the position of a person in a facility at the time of a disaster and guiding it by the shortest route to an emergency exit in consideration of the direction of the disaster. However, when a disaster occurs, the visitors evacuate all at once, so the emergency exits are congested, and even if the visitors evacuate on the shortest route, it may take time and be delayed.

  In Patent Document 2, information on the allowable number of people for each area is stored as a DB (database), and the number of people currently in the area is compared with the allowable number of people in the area. Is disclosed as a guide route is not selected.

Japanese Patent No. 3298940 Patent No. 4504825

  However, in the method shown in Patent Document 2, when a visitor visits a facility in a group such as a parent and child, a friend, etc., it is instructed to take separate guidance routes because the number of people in the area exceeds the allowable number. In such a case, there is a possibility of giving a psychological anxiety to the visitors, causing a great deal of confusion and making it impossible to perform a guided guidance. Also, if visitors from the same group are in different locations within the facility and are away from each other, it is possible to know what route the visitors from the same group evacuated to each other and whether they were able to evacuate properly. There is a possibility of being uneasy and giving anxiety.

  The present invention has been made in view of the above-described problems, and its purpose is to detect crowded situations of visitors and dangerous traffic areas, disperse evacuation routes, and group visitors It is to provide an emergency evacuation guidance system and the like that presents the evacuation route to the user in consideration of the above.

  In order to achieve the above-described object, the first invention is an emergency evacuation comprising a terminal, a disaster detection sensor for detecting a disaster in a facility, a position detection device for detecting the position of the terminal, and an evacuation guidance device. In the guidance system, the evacuation guidance device receives disaster information from the disaster detection sensor, receives a disaster area determination means for determining a disaster area where a disaster has occurred, and receives the position of the terminal from the position detection device. A congestion area determination means for calculating a congestion degree and determining a congestion area; and a user who holds the terminal based on the location of the terminal, the disaster area, and the congestion area when receiving a guidance request from the terminal The evacuation route determination means for determining the evacuation route to the emergency exit of the terminal, the group information of the terminal stored in advance, and the group of the same group as the terminal of the guidance request source Emergency evacuation characterized by comprising group evacuation route determination means for setting the evacuation route of the terminal of the same group to the same evacuation route as the evacuation route of the terminal requesting guidance when there is a terminal in the vicinity It is a guidance system. According to the first aspect of the present invention, it is possible to detect crowded situations of visitors and dangerous traffic areas, disperse evacuation routes, and present evacuation routes to users in consideration of group visitors.

  In the first invention, the group evacuation route determination means notifies the evacuation route of the terminal of the same group to the terminal of the guidance request source when the terminal of the same group as the terminal of the guidance request source does not exist in the vicinity. It is desirable to do. As a result, even when the same group of people is inevitably guided by another evacuation route, it is difficult for visitors to panic by notifying each other of the evacuation route within the same group.

  Further, it is preferable that the congestion area determination means in the first invention calculates the degree of congestion based on at least one of an allowable value of the number of emergency exits and an allowable value of the number of passages to the emergency exit. . Accordingly, it is possible to calculate an appropriate degree of congestion for determining the evacuation route.

  A second invention is an emergency evacuation guidance executed by an emergency evacuation guidance system comprising a terminal, a disaster detection sensor for detecting a disaster in a facility, a position detection device for detecting the position of the terminal, and an evacuation guidance device The method, wherein the evacuation guidance device receives disaster information from the disaster detection sensor, determines a disaster area where a disaster has occurred, receives the location of the terminal from the location detection device, A congestion area determination step for calculating a congestion degree and determining a congestion area, and when receiving a guidance request from the terminal, based on the location of the terminal, the disaster area, and the congestion area, the user holding the terminal Refer to the evacuation route determination step for determining the evacuation route to the emergency exit, and the group information of the terminal stored in advance, and the same as the terminal of the guidance request source. A group evacuation route determination step of setting the evacuation route of the terminals of the same group to the same evacuation route as the evacuation route of the terminal that requested the guidance, when the terminal of the group exists in the vicinity, This is an emergency evacuation guidance method. According to the second aspect of the present invention, it is possible to detect the congestion situation of visitors and dangerous traffic areas, disperse evacuation routes, and present evacuation routes to users in consideration of group visitors.

  A third invention is a disaster detection sensor for detecting a disaster and an evacuation guidance device connected to a position detection device for detecting the position of a terminal, wherein disaster information is received from the disaster detection sensor and a disaster has occurred A disaster area determination means for determining a disaster area; a position of the terminal from the position detection device; a congestion degree is calculated; a congestion area determination means for determining a congestion area; and a guidance request from the terminal. Based on the location of the terminal, the disaster area, and the congested area, refer to the evacuation route determination means for determining the evacuation route to the emergency exit of the user holding the terminal, and the group information of the terminal stored in advance If the terminal of the same group as the terminal requesting the guidance request exists in the vicinity, the evacuation route of the terminal of the guidance request source is set to the evacuation route of the terminal of the same group. Be provided with a, and groups evacuation route determination means for setting the same evacuation routes to be evacuation guidance device according to claim. The emergency evacuation guidance system of the first invention can be constructed by the evacuation guidance device of the third invention.

  According to a fourth aspect of the present invention, a computer is connected to a disaster detection sensor that detects a disaster and a position detection device that detects the position of a terminal, receives disaster information from the disaster detection sensor, and determines a disaster area where the disaster has occurred. A disaster area determination means that receives the position of the terminal from the position detection device, calculates a congestion level, determines a congestion area, receives a guidance request from the terminal, and receives the guidance request from the terminal, Based on the disaster area and the congested area, an evacuation route determination means for determining an evacuation route to the emergency exit of the user holding the terminal, and the group information of the terminal stored in advance is referred to for guidance When the terminal of the same group as the original terminal exists in the vicinity, the evacuation route of the terminal of the same group is the same as the evacuation route of the terminal requesting the guidance And groups evacuation route determination means for setting the escape route, a program to function as escape guiding apparatus having a. By installing the program of the fourth invention in a computer, the evacuation guidance device of the third invention can be obtained.

  According to the present invention, there is provided an emergency evacuation guidance system or the like that detects crowded areas of visitors or dangerous traffic areas in a disaster, distributes evacuation routes, and presents evacuation routes to users in consideration of group visitors. be able to.

Outline diagram of emergency evacuation guidance system 1 Hardware configuration diagram of terminal 3 Hardware configuration diagram of a computer realizing the position detection device 7 and the evacuation guidance device 11 The figure which shows an example of the position determination table 40 in radio wave intensity DB9 of the position detection apparatus 7. FIG. The figure which shows an example of the group table 50 of the evacuation guidance apparatus 11 The figure which shows an example of the tolerance table 60 in map DB13 of the evacuation guidance apparatus 11. The flowchart which shows the flow of the emergency evacuation guidance process in the emergency evacuation guidance system 1 Flowchart showing the flow of evacuation route determination processing in step S106 A figure showing an example of an area in a facility Figure showing an example of the shortest evacuation route The figure which shows an example of the evacuation route of the terminals 3-1 and 3-2 of the same group

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the configuration of the emergency evacuation guidance system 1 will be described with reference to FIGS. 1 to 6.

  FIG. 1 is a schematic diagram of an emergency evacuation guidance system 1. As shown in FIG. 1, an emergency evacuation guidance system 1 includes a single or a plurality of terminals 3, a single or a plurality of position positioning information devices 5, a single position detection device 7, a single evacuation guidance device 11, a single It is composed of one or a plurality of disaster detection sensors 15.

  The position measurement information device 5 is an access point such as a wireless LAN (Local Area Network). The positioning information device 5 mediates wireless communication and transmits information such as a MAC (Media Access Control) address necessary for positioning to the terminal 3.

  The terminal 3 is an information processing terminal such as a smartphone owned by the user. The terminal 3 holds the user ID (identification) of the user and the user IDs of the parent and child, friends, etc. as group information and transmits it to the evacuation guidance apparatus 11. The terminal 3 acquires the radio field intensity, the MAC address, and the like of the position measurement information device 5 and transmits the acquired information and the user ID of the terminal 3 to the position detection device 7. When a disaster occurs in the facility, the terminal 3 transmits an evacuation guidance request to the evacuation guidance device 11 and receives an appropriate evacuation route from the current position to the emergency exit from the evacuation guidance device 11.

  The position detection device 7 has a radio wave intensity DB 9 and performs position measurement of the terminal 3 based on information received from the terminal 3. In the radio wave intensity DB 9, the radio wave intensity and the like of the position positioning information device 5 in each area in the facility is previously investigated and registered in association with the MAC address of the position positioning information device 5.

  The evacuation guidance device 11 receives the information related to the position measurement of the terminal 3 transmitted from the position detection device 7, grasps the position information of the terminal 3, and calculates the degree of congestion in the facility. The evacuation guidance apparatus 11 determines an appropriate evacuation route for each user based on the information received from the disaster detection sensor 15 and the terminal 3 in addition to the calculated congestion level, and transmits the evacuation route to each terminal 3. In addition, the determined evacuation route is retained.

  Moreover, the evacuation guidance apparatus 11 has map DB13. The map DB 13 includes a map in the facility, information on areas divided in the facility, a permissible value for the number of people who can pass through each area, a permissible value for the number of emergency exits, and the like.

  The disaster detection sensor 15 is a fire detection sensor or the like installed in the facility, and detects a disaster that has occurred in the facility. In addition, a package or a dangerous part that has collapsed during the user's evacuation is detected, and information is transmitted to the evacuation guidance device 11.

  In a normal state, in the emergency evacuation guidance system 1, the terminal 3 existing in the facility periodically transmits the radio wave intensity, the MAC address, and the user ID of the position measurement information device 5 to the position detection device 7. The position detection device 7 measures the position of the terminal 3 based on the information received from the terminal 3 and sends it to the evacuation guidance device 11.

  When a disaster occurs in the facility, the emergency evacuation guidance system 1 guides the user who owns the terminal 3 to the emergency exit through an appropriate evacuation route. Specifically, when the disaster detection sensor 15 detects a disaster, the disaster information is transmitted to the evacuation guidance device 11. When the terminal 3 transmits an evacuation guidance request to the evacuation guidance device 11, the evacuation guidance device 11 determines the degree of congestion of each area in the facility based on the information on the position positioning of the terminal 3 received from the position detection device 7. And an appropriate evacuation route is determined in consideration of the group information of the user and transmitted to the terminal 3. The terminal 3 presents an evacuation route to the user.

  FIG. 2 is a hardware configuration diagram of the terminal 3. Note that the hardware configuration in FIG. 2 is an example, and various configurations can be adopted depending on the application and purpose. The terminal 3 is connected to a control unit 21, a storage unit 22, an input unit 23, a display unit 24, a communication unit 25, and the like via a bus 26.

  The control unit 21 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The CPU calls a program stored in the storage unit 22, ROM, recording medium, or the like into a work memory area on the RAM, executes it, drives and controls each device connected via the bus 26, and is described later by the terminal 3. To achieve the process. The ROM is a non-volatile memory and permanently stores programs, data, and the like. The RAM is a volatile memory, and temporarily stores a program, data, and the like loaded from the storage unit 22, ROM, recording medium, and the like, and includes a work area used by the control unit 21 for performing various processes.

  The storage unit 22 is a flash memory or the like, and stores a program executed by the control unit 21, data necessary for program execution, and the like. These program codes are read by the CPU of the control unit 21 as necessary, transferred to the RAM, and executed as various means.

  The input unit 23 inputs data and includes an input device such as a touch panel and keys. An operation instruction, an operation instruction, data input, and the like can be performed on the terminal 3 via the input unit 23. The display unit 24 has a logic circuit or the like (video adapter or the like) for realizing the video function of the terminal 3 in cooperation with a display device such as a liquid crystal panel. The input unit 23 and the display unit 24 may be integrated like a display with a touch panel.

  The communication unit 25 is a communication interface that mediates communication with a network (not shown) of the position positioning information device 5 (such as a wireless LAN), and communicates with the position positioning information device 5, the position detection device 7, and the like. . The bus 26 is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  FIG. 3 is a hardware configuration diagram of a computer that realizes the position detection device 7 and the evacuation guidance device 11. Note that the hardware configuration of FIG. 3 is an example, and various configurations can be adopted depending on the application and purpose. In the computer, a control unit 31, a storage unit 32, an input unit 33, a display unit 34, a communication unit 35, and the like are connected via a bus 36.

  The control unit 31 includes a CPU, a ROM, a RAM, and the like. The CPU calls a program stored in the storage unit 32, ROM, recording medium or the like to a work memory area on the RAM, executes it, drives and controls each device connected via the bus 36, and will be described later. Realize processing. The ROM is a non-volatile memory and permanently holds a computer boot program, a program such as BIOS, data, and the like. The RAM is a volatile memory, and temporarily stores a program, data, and the like loaded from the storage unit 32, ROM, recording medium, and the like, and includes a work area used by the control unit 31 for performing various processes.

  The storage unit 32 is an HDD (hard disk drive), a flash memory, or the like, and stores a program executed by the control unit 31, data necessary for program execution, and the like. As for the program, a control program corresponding to the OS and an application program for causing a computer to execute processing to be described later are stored. Each of these program codes is read by the control unit 31 as necessary, transferred to the RAM, read by the CPU, and executed as various means.

  The input unit 33 inputs data and includes input devices such as a touch panel, keys, and a keyboard. An operation instruction, an operation instruction, data input, and the like can be performed on the computer via the input unit 33. The display unit 34 includes a logic circuit or the like (video adapter or the like) for realizing a video function of a computer in cooperation with a display device such as a liquid crystal panel.

  The communication unit 35 is a communication interface that mediates communication between the computer and the network, and communicates with other computers via the network. The network may be wired or wireless. The bus 36 is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  FIG. 4 is a diagram illustrating an example of the position determination table 40 in the radio wave intensity DB 9 of the position detection device 7. The position determination table 40 holds information for the position detection device 7 to position the terminal 3, and includes an area 41, a MAC address 43, a radio wave intensity 45, and the like.

  The area 41 is an ID representing an area obtained by dividing the facility. The MAC address 43 is the MAC address of the positioning information device 5 (such as a wireless LAN) received by the terminal 3 in the area 41. The radio field intensity 45 is the radio field intensity of the position measurement information apparatus 5 in which the terminal 3 has the MAC address 43 set in the area 41.

  The terminal 3 transmits the MAC address and radio wave intensity of the position measurement information device 5 to the position detection device 7. The position detection device 7 refers to the position determination table 40 and determines the area 41 to which the MAC address and the radio wave intensity received from the terminal 3 correspond to perform the position measurement of the terminal 3.

  In the example shown in FIG. 4, two position positioning information devices 5 are arranged in the facility. That is, the positioning information device 5 whose MAC address 43 is “0A: BB: CC: DD: 11: 22” and the positioning information device 5 whose MAC address 43 is “0B: EE: FF: GG: 33: 44”. It is two.

  FIG. 5 is a diagram illustrating an example of the group table 50 included in the evacuation guidance apparatus 11. The group table 50 is information regarding groups such as parents and children who are visiting the facility, and has a group ID 51 and a user ID 53.

  The group ID 51 is an ID that uniquely indicates a group. The user ID 52 is an ID indicating a user belonging to the group. The evacuation guidance apparatus 11 receives information about the group from the terminal 3 and registers it in the group table 50.

  FIG. 6 is a diagram illustrating an example of the allowable value table 60 in the map DB 13 of the evacuation guidance apparatus 11. The allowable value table 60 holds the allowable values of the number of people that can be guided to each emergency exit depending on the size of the passage and ease of walking, and has an emergency exit ID 61, an allowable value 63, and the like.

  The emergency exit ID 61 is an ID that uniquely represents an emergency exit in the facility. The allowable value 63 is an allowable value of the number of people who can pass through the emergency exit. The map DB 13 may set not only the allowable value of the number of people for each emergency exit but also the allowable value for the passage to the emergency exit. Moreover, map DB13 has the allowable value of the number of persons of each area in a facility.

  Next, the flow of emergency evacuation guidance processing in the emergency evacuation guidance system 1 of the present invention will be described in detail with reference to FIGS.

  FIG. 7 is a flowchart showing the flow of emergency evacuation guidance processing in the emergency evacuation guidance system 1. The facility is divided into a plurality of areas such as area A to area G as shown in FIG. For example, one disaster detection sensor 15 is arranged for each area.

  When the evacuation guidance apparatus 11 receives a disaster from the disaster detection sensor 15 (step S101), the evacuation guidance apparatus 11 determines in which area in the facility the disaster has occurred from the ID of the disaster detection sensor 15 (step S102).

  The terminal 3 periodically transmits the MAC address, radio wave intensity, and user ID of the positioning information device 5 to the position detection device 7. The position detection device 7 measures the position of each terminal 3 based on the MAC address and radio wave intensity received from the terminal 3, and periodically transmits the position information of each terminal 3 to the evacuation guidance device 11.

  The evacuation guidance device 11 receives the position of each terminal 3 from the position detection device 7 (step S103), calculates the congestion degree of each area in the facility (step S104), and determines the congestion area (step S105).

  The evacuation guidance device 11 grasps the number of users in each area from the position information of each terminal 3 and compares it with the allowable value of the number of users in each area held in the map DB 13, for example, there are more than the allowable value. The area to be determined is a congested area.

  Upon receiving the evacuation guidance request from the terminal 3, the evacuation guidance device 11 determines an appropriate evacuation route based on the congestion area and the user group information (step S106), and transmits the determined evacuation route to the terminal 3. (Step S107).

  FIG. 8 is a flowchart showing the flow of the evacuation route determination process in step S106.

  When receiving an evacuation guidance request from any terminal 3 (step S201), the evacuation guidance apparatus 11 determines whether an evacuation route for the terminal 3 has already been set (step S202). If the evacuation route of the terminal 3 and the terminal 3 of the same group has already been determined and the evacuation route of the terminal 3 is also set to the same evacuation route as the terminal 3 of the same group (Yes in step S202), the evacuation of the terminal 3 The route is “determined” (step S203).

  When the evacuation route of the terminal 3 has not been set yet (No in step S202), the evacuation guidance device 11 refers to the map DB 13 and searches for the shortest evacuation route from the current position of the terminal 3 to the emergency exit (step S204). .

  FIG. 10 is a diagram illustrating an example of the shortest evacuation route. For example, when a disaster occurs in area B, the evacuation guidance apparatus 11 obtains an evacuation route to areas A, B, and C to emergency exit A, and areas D, E, F, and G to emergency exit B. For example, the terminal 3-1 located in the area E is an evacuation route to the emergency exit B.

The evacuation guidance device 11 determines whether the emergency exit of the evacuation route searched as the shortest route is congested based on the congested area determination (step S205), and if it is not congested (Yes in step S205), the evacuation route Is “determined” (step S207). If it is congested (No in step S205), the evacuation guidance apparatus 11 searches for another evacuation route (step S206).

  The determination of whether or not it is congested is performed with reference to the determined congested area and the allowable value table 60. For example, since the terminal 3-1 in FIG. 10 is located in the area E, the shortest route is an evacuation route to the emergency exit B. However, if a person who has already exceeded the allowable value 63 of the emergency exit B has been guided to the emergency exit B, the escape route to the emergency exit A is set for the terminal 3-1.

  After the evacuation route of the terminal 3 is determined, the evacuation guidance device 11 refers to the group table 50 and determines whether the terminal 3 of the same group as the guidance request source terminal 3 is registered in the group table 50 (step S208). When the terminal 3 of the same group as the guidance request source terminal 3 is not registered (No in step S208), the evacuation guidance apparatus 11 sets the evacuation route of the terminal 3 that is the guidance request source, and ends the process of step S106. .

  When the terminal 3 of the same group as the guidance request source terminal 3 is registered in the group table 50 (Yes in Step S208), the position information of the terminal 3 of the same group is acquired from the position detection device 7 (Step S209), It is determined whether or not the position of the terminal 3 of the same group as that of the guidance requesting terminal 3 is close (step S210). The proximity determination is performed according to a predetermined condition such as a radius of several meters, for example.

  If the terminal 3 of the same group is in the vicinity of the guidance requesting terminal 3 (Yes in step S210), the evacuation guidance device 11 allows the user of the same group to evacuate to the same emergency exit. The evacuation route is set to the same evacuation route as the guidance requesting terminal 3 (step S211).

  For example, in FIG. 11, when the terminals 3-1 and 3-2 are in the same group, the shortest route of the terminal 3-1 located in the area E is an evacuation route to the emergency exit B, and the terminal 3 located in the area C. -2 is the evacuation route to emergency exit A. In such a situation, when the evacuation guidance apparatus 11 determines that the terminal 3-2 is in the vicinity of the terminal 3-1, after determining the evacuation route of the terminal 3-1, the evacuation route of the terminal 3-2 is determined to be the terminal 3. -1 is determined to be the same as evacuation route to emergency exit B.

  When it is determined that the terminal 3 of the same group is not near the guidance requesting terminal 3 (No in step S210), the evacuation guidance device 11 determines the evacuation route of the terminal 3 of the same group and the terminal 3 of the guidance requesting source. Notify each other (step S212).

  As described above, in the emergency evacuation guidance system according to the present embodiment, when there are multiple emergency exits when an indoor disaster occurs, an evacuation route is used so that too many people gather at a specific emergency exit, area, etc., based on the congestion situation of people. It is possible to evacuate people who visit the facility in the same group, such as a parent and child, a friend, etc., while distributing them. By having the same group of people take the same evacuation route, it is possible to give visitors a sense of security. Also, even if the same group of people is unavoidably guided by another evacuation route due to the degree of congestion, it is difficult for visitors to panic due to mutual notification of the evacuation route within the same group.

  The preferred embodiments of the emergency evacuation guidance system and the like according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these naturally belong to the technical scope of the present invention. Understood.

1 ......... Emergency Evacuation Guidance System 3 ......... Terminal 5 ......... Positioning Information Device 7 ......... Position Detector 9 ......... Radio Intensity DB
11 ……… Evacuation guidance device 13 ……… Map DB
15 ......... Disaster detection sensor 40 ......... Position determination table 50 ......... Group table 60 ......... Allowable value table

Claims (6)

An emergency evacuation guidance system comprising a terminal, a disaster detection sensor for detecting a disaster in a facility, a position detection device for detecting the position of the terminal, and an evacuation guidance device,
The evacuation guidance device is:
Disaster area determination means for receiving disaster information from the disaster detection sensor and determining a disaster area in which a disaster has occurred;
A congestion area determination means for receiving the position of the terminal from the position detection device, calculating a congestion degree, and determining a congestion area;
When receiving a guidance request from the terminal, based on the location of the terminal, the disaster area, and the congestion area, an evacuation route determination unit that determines an evacuation route to an emergency exit of a user holding the terminal;
With reference to the group information of the terminal stored in advance, when the terminal of the same group as the terminal of the guidance request source exists in the vicinity, the evacuation route of the terminal of the same group is evacuated from the terminal of the guidance request source A group evacuation route determination means to set the same evacuation route as the route;
An emergency evacuation guidance system comprising:   The group evacuation route determining means notifies the evacuation route of the terminal of the same group to the terminal of the guidance request source when the terminal of the same group as the terminal of the guidance request source does not exist in the vicinity. The emergency evacuation guidance system according to claim 1.   The said congestion area determination means calculates the said congestion degree based on at least one of the allowable value of the number of people of the said emergency exit, and the allowable value of the number of people of the passage to the said emergency exit. Item 3. The emergency evacuation guidance system according to item 2. An emergency evacuation guidance method executed by an emergency evacuation guidance system comprising a terminal, a disaster detection sensor for detecting a disaster in a facility, a position detection device for detecting the position of the terminal, and an evacuation guidance device,
The evacuation guidance device is
A disaster area determination step of receiving disaster information from the disaster detection sensor and determining a disaster area where a disaster has occurred;
A congestion area determination step of receiving the position of the terminal from the position detection device, calculating a congestion degree, and determining a congestion area;
When receiving a guidance request from the terminal, an evacuation route determination step for determining an evacuation route to the emergency exit of the user holding the terminal based on the location of the terminal, the disaster area, and the congestion area;
With reference to the group information of the terminal stored in advance, when the terminal of the same group as the terminal of the guidance request source exists in the vicinity, the evacuation route of the terminal of the same group is evacuated from the terminal of the guidance request source A group evacuation route determination step to set the same evacuation route as the route;
The emergency evacuation guidance method characterized by performing. An evacuation guidance device connected to a disaster detection sensor for detecting a disaster and a position detection device for detecting the position of the terminal,
Disaster area determination means for receiving disaster information from the disaster detection sensor and determining a disaster area in which a disaster has occurred;
A congestion area determination means for receiving the position of the terminal from the position detection device, calculating a congestion degree, and determining a congestion area;
When receiving a guidance request from the terminal, based on the location of the terminal, the disaster area, and the congestion area, an evacuation route determination unit that determines an evacuation route to an emergency exit of a user holding the terminal;
With reference to the group information of the terminal stored in advance, when the terminal of the same group as the terminal of the guidance request source exists in the vicinity, the evacuation route of the terminal of the same group is evacuated from the terminal of the guidance request source A group evacuation route determination means to set the same evacuation route as the route;
An evacuation guidance device comprising: Computer
Connected to a disaster detection sensor that detects a disaster and a position detection device that detects the position of the terminal,
Disaster area determination means for receiving disaster information from the disaster detection sensor and determining a disaster area in which a disaster has occurred;
A congestion area determination means for receiving the position of the terminal from the position detection device, calculating a congestion degree, and determining a congestion area;
When receiving a guidance request from the terminal, based on the location of the terminal, the disaster area, and the congestion area, an evacuation route determination unit that determines an evacuation route to an emergency exit of a user holding the terminal;
With reference to the group information of the terminal stored in advance, when the terminal of the same group as the terminal of the guidance request source exists in the vicinity, the evacuation route of the terminal of the same group is evacuated from the terminal of the guidance request source A group evacuation route determination means to set the same evacuation route as the route;
A program for functioning as an evacuation guidance device.

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