JP2024040285A - disaster prevention system - Google Patents

Abstract

To provide a disaster prevention system capable of notifying persons present in a building of the degree of congestion of an evacuation route upon occurrence of an abnormality such as a fire.SOLUTION: An abnormality information reception unit 711 included in an assistance server 7 of a disaster prevention system receives abnormality information indicating an occurrence of an abnormality or possibility of occurrence of an abnormality in a building. A congestion degree determination unit 715 determines a congestion degree for each of a plurality of evacuation routes set in the building when the abnormality information is received by the abnormal information reception unit. A display control unit 718 displays one or more congestion degrees from the congestion degrees determined by the congestion degree determination unit for each of the plurality of evacuation routes on a display unit of a potable terminal.SELECTED DRAWING: Figure 4

Description

The present invention relates to a technique for supporting evacuation of people in a building when an abnormality such as a fire occurs.

2. Description of the Related Art Guidance systems for guiding evacuation routes to people in buildings in the event of a fire have been known. For example, Patent Document 1 describes an alarm system using flash light that can notify occupants of the occurrence of an emergency such as a fire and encourage them to evacuate.

JP 2014-186430 A

According to the Fire Service Act, buildings with multiple floors must be built in such a way that evacuations can be made in two directions. Therefore, such buildings generally have multiple evacuation routes. However, in such a building, if evacuees concentrate on one evacuation route when evacuating all at once, the evacuation route becomes congested and smooth evacuation is hindered.

The present invention has been made in view of the above circumstances, and an object of the present invention is to notify people in the building of the degree of congestion of the evacuation route when an abnormality such as a fire occurs.

In order to solve the above problems, the disaster prevention system according to the present invention includes an abnormality information receiving section that receives abnormality information indicating the occurrence of an abnormality or the possibility of the occurrence of an abnormality in a building, and an abnormality information receiving section that receives abnormality information. When received, a congestion level identification unit that identifies the congestion level for each of the plurality of evacuation routes set for the building; and a congestion level identification unit that identifies the congestion level for each of the plurality of evacuation routes by the congestion level identification unit. A display control section that causes the display section to display one or more of the congestion degrees.

According to the disaster prevention system according to the present invention, in the event of an emergency such as a fire, it is possible to inform the occupants of the building about the degree of congestion of the evacuation route, and the occupants can choose a less crowded evacuation route and evacuate. can. In addition, self-defense fire fighters can provide appropriate evacuation guidance depending on the degree of congestion. Furthermore, in the case of a fire, self-defense fire fighters who are responsible for initial extinguishing can select a less crowded route to reach the location of the fire.

1 is a diagram showing an example of the configuration of a disaster prevention system 1. FIG. 5 is a diagram showing an example of the configuration of a fire receiver 5. FIG. 2 is a diagram showing an example of the configuration of a mobile terminal 6. FIG. 3 is a diagram showing an example of the configuration of a support server 7. FIG. 7 is a diagram showing an example of a member candidate information database 721. FIG. 7 is a diagram showing an example of a congestion degree information database 723. FIG. It is a sequence diagram which shows an example of formation operation of a self-defense fire brigade. FIG. 3 is a flow diagram showing an example of a congestion degree identification operation. FIG. 3 is a sequence diagram illustrating an example of a congestion map providing operation. It is a figure showing an example of a congestion situation map. It is a figure which shows an example of a top view. It is a figure showing an example of a congestion situation map.

1. Embodiment 1-1. Configuration of Disaster Prevention System 1 FIG. 1 is a diagram showing an example of the configuration of a disaster prevention system 1 according to an embodiment of the present invention. The disaster prevention system 1 includes an automatic fire alarm facility 2 (hereinafter referred to as "self-fire alarm facility 2") and a disaster prevention support system 3.

1-1-1. Configuration of self-fire alarm equipment 2 The self-fire alarm equipment 2 is installed in a building that is subject to fire prevention. Here, the building is, for example, an office building, a commercial facility, a hotel, or a housing complex such as an apartment building. The fire alarm equipment 2 includes fire detectors 4 installed at various locations in the building, and a fire receiver 5 installed at the disaster prevention center of the building. The fire detector 4 and the fire receiver 5 are connected via a signal line. The fire receiver 5 is also connected directly or via a communication line 8 to a support server 7 . Here, the communication line 8 is, for example, a communication network such as the Internet or a wireless LAN. The fire alarm equipment 2 may be a P-type equipment or an R-type equipment. In the following description, it is assumed that the fire alarm equipment 2 is an R-type equipment.

1-1-1-1. Configuration of Fire Detector 4 The fire detector 4 is an example of fire detection means, and is, for example, a photoelectric smoke detector. Although not shown, the fire detector 4 includes a fire detection section that detects smoke generated during a fire to detect a fire, and when the fire detection section detects a fire, it sends a fire detection signal containing an address that is self-identification information. and a signal transmitter that transmits the fire signal to the fire receiver 5. In addition, as a modification, the fire sensor 4 may be another type of sensor such as a heat sensor or a flame sensor.

1-1-1-2. Configuration of Fire Receiver 5 FIG. 2 is a diagram showing an example of the configuration of the fire receiver 5. As shown in FIG. The fire receiver 5 includes a control section 51, a storage section 52, a display section 53, an operation input section 54, a first communication section 55, and a second communication section 56.

The control unit 51 includes an arithmetic processing unit such as a CPU and a volatile memory such as a RAM, and executes a program stored in the storage unit 52. The storage unit 52 is a storage device such as an HDD or a flash memory, and stores a program executed by the control unit 51 and a sensor database 521. Although not shown, the detector database 521 stores the district number and district name of the installation location of the fire detector 4 in association with the address of the fire detector 4. Note that as a modification, the storage unit 52 may be an external storage device. Next, the display section 53 is a display device such as a liquid crystal display or an organic EL display. The operation input unit 54 is an input device such as an operation button or a touch panel. The first communication unit 55 is a communication interface for communicating with the fire detector 4 via a signal line. The second communication unit 56 is a communication interface for communicating with the support server 7 via the communication line 8.

The control unit 51 of the fire receiver 5 implements the functions of a fire detection signal reception unit 511, a fire determination unit 512, and a fire information transmission unit 513 by executing a program stored in the storage unit 52.

When the fire detection signal reception unit 511 receives a fire detection signal from the fire detector 4, it refers to the sensor database 521 and specifies the installation location corresponding to the address included in the signal. Further, the fire detection signal receiving section 511 receives a fire signal from a transmitter (not shown) via a signal line.

The fire determination unit 512 determines the occurrence of a fire based on the signal received by the fire detection signal reception unit 511. Specifically, when a fire detection signal is received from the second fire detector 4, when a certain period of time has passed since the fire detection signal was received from the first fire detector 4, and when the If a fire signal is received from the aircraft, it is determined that a fire has occurred. Further, the fire determining unit 512 also determines the occurrence of a fire when a fire confirmation operation is performed using the operation input unit 54.
The self-fire alarm equipment 2 may be a so-called analog type equipment in which the fire detection signal transmitted from the fire detector 4 transmits the detection level of smoke, heat, etc. as a signal; in this case, the fire alarm equipment The device 5 determines that smoke, heat, etc. are at a fire detection level based on the signal from the fire detector.

When the fire determination unit 512 determines that a fire has occurred, the fire information transmitting unit 513 transmits a fire confirmation signal to the support server 7 to notify that the fire has been determined. This fire confirmation signal includes information on the location where the fire occurred.

1-1-2. Configuration of Disaster Prevention Support System 3 The disaster prevention support system 3 includes a plurality of mobile terminals 6 and a support server 7. The mobile terminal 6 and the support server 7 are connected via a communication line 8.
The disaster prevention support system 3 receives the fire information from the fire receiver 5 and provides fire information such as a detector alarm and a fire alarm together with information on the location of the fire to a plurality of mobile terminals 6, as will be described later. It provides information to support self-defense firefighting activities such as:

1-1-2-1. Configuration of Mobile Terminal 6 FIG. 3 is a diagram showing an example of the configuration of the mobile terminal 6. As shown in FIG. The mobile terminal 6 is a terminal carried by a resident of a building that is subject to fire protection. Specifically, these are smartphones, mobile phones, tablet terminals, and wearable terminals. The mobile terminal 6 includes a control section 61 , a storage section 62 , a display section 63 , an operation input section 64 , a communication section 65 , and a positioning section 66 .

The control unit 61 includes an arithmetic processing unit such as a CPU and a volatile memory such as a RAM, and executes a program stored in the storage unit 62. The storage unit 62 is a storage device such as a flash memory, and stores programs executed by the control unit 61. The display unit 63 is a display device such as a liquid crystal display or an organic EL display. The operation input unit 64 is an input device such as an operation button or a touch panel. The communication unit 65 is a communication interface for communicating with the support server 7 via the communication line 8. The positioning unit 66 measures the current position of the mobile terminal 6 using a well-known indoor positioning technique. For example, the current location is measured based on the radio wave intensity of a beacon signal received from BLE (Bluetooth (registered trademark) Low Energy) beacon transmitters installed at various locations in a building. Alternatively, the current location of the mobile terminal 6 may be specified using Wi-Fi (registered trademark) positioning or IMES (Indoor Messaging System).

The control unit 61 implements the functions of an information reception unit 611, a display control unit 612, a movement speed calculation unit 613, and an information transmission unit 614 by executing a program stored in the storage unit 62.

The information receiving unit 611 receives role information, a movement information request, a congestion situation map, and a plan view from the support server 7 . This information will be described later.

The display control unit 612 causes the display unit 63 to display the role information, congestion map, and plan view received by the information receiving unit 611.

The moving speed calculation unit 613 calculates the moving speed of the mobile terminal 6 when the information receiving unit 611 receives the movement information request. Here, the moving speed is calculated by dividing the difference between the first position measured by the positioning unit 66 and the second position measured a predetermined time before the first position by a predetermined time. Ru.

When the information receiving unit 611 receives the movement information request, the information transmitting unit 614 returns movement information to the support server 7 . This movement information includes the current position of the mobile terminal 6 measured by the positioning section 66 and the movement speed calculated by the movement speed calculation section 613. Furthermore, when the user performs an operation on the operation input unit 64 to instruct the acquisition of a congestion situation map, the information transmission unit 614 sends a congestion situation map request to the support server 7 . Further, when the user performs an operation to select a specific floor on the operation input unit 64 after displaying the congestion situation map on the display unit 63, the information transmitting unit 614 sends a plane requesting a floor plan of the selected floor. A diagram request is sent to the support server 7.

1-1-2-2. Configuration of Support Server 7 FIG. 4 is a diagram showing an example of the configuration of the support server 7. As shown in FIG. The support server 7 is a computer device that notifies people in the building who carry mobile terminals 6 of the degree of congestion of evacuation routes set for buildings that are subject to fire protection. This support server 7 includes a control section 71, a storage section 72, and a communication section 73.

The control unit 71 includes an arithmetic processing unit such as a CPU and a volatile memory such as a RAM, and executes a program stored in the storage unit 72.

The storage unit 72 is a storage device such as an HDD or a flash memory, and stores programs executed by the control unit 71. The storage unit 72 also stores a member candidate information database 721, a member information database 722, a congestion degree information database 723, and a plan view database 724. FIG. 5 is a diagram showing an example of the member candidate information database 721. The member candidate information database 721 is a database that stores member IDs of member candidates for each role of the self-defense fire brigade in association with each other. Specifically, it corresponds to the role of the self-defense fire brigade, the number of members selected for each role, the priority of the role when selecting members, and the member ID of the member candidate selected for the role. Attach and store. Here, the member ID is, for example, the name of the member candidate or the terminal ID of the mobile terminal 6 carried by the member candidate.

Note that the self-defense fire brigade is a self-defense organization made up of residents of a building that is subject to fire protection, and is an organization that provides initial response to abnormal situations that occur within the building. More specifically, it is an organization established to smoothly carry out initial response and emergency measures in the event of a disaster such as a fire or earthquake, and to ensure the safety of building users. Members of the self-defense fire brigade belong to the main unit or district unit, and the roles of each member include, for example, initial fire extinguishing staff, evacuation guidance staff, safety protection staff, report liaison staff, first aid staff, emergency evacuation staff, etc. There is.

Next, the member information database 722 is a database that stores information on each member of the organized self-defense fire brigade. Specifically, although not shown, the member ID, the role assigned to the member, and the floor the member is in charge of are stored in association with each other. FIG. 6 is a diagram showing an example of the congestion degree information database 723. The congestion degree information database 723 is a database that stores the congestion degree of evacuation routes set for buildings that are fire prevention objects. Specifically, the location of the evacuation exit and the degree of congestion in the vicinity of the evacuation exit are stored in association with the floor of the building and the evacuation exit (emergency exit). Here, the vicinity of the evacuation exit specifically refers to the evacuation exit, the passage leading to the evacuation exit (including the attached room), and the evacuation staircase (emergency staircase) near the evacuation exit. Regarding evacuation stairs, they are not included in the vicinity of the evacuation exit, but are individually associated with, for example, "2nd floor evacuation stairway B" or "evacuation stairway between 2nd and 3rd floor A", and the location of the evacuation stairway and the relevant evacuation stairway are It is also possible to store the degree of congestion. Moreover, the degree of crowding is the degree of crowding of evacuees. Next, although not shown, the plan database 724 stores image data representing a plan map of each floor of the building, which is a fire prevention target. Note that as a modification, the storage unit 72 may be an external storage device.

The communication unit 73 is a communication interface for communicating with the fire receiver 5 and the mobile terminal 6 via the communication line 8.

The control unit 71 of the support server 7 executes the program stored in the storage unit 72 to control the abnormality information reception unit 711, the organization unit 712, the role information transmission unit 713, the movement information acquisition unit 714, and the congestion information The functions of a degree specifying section 715, a map request receiving section 716, a map generating section 717, and a display control section 718 are realized.

The abnormality information receiving unit 711 receives abnormality information indicating the occurrence of an abnormality in a building that is a fire prevention target. Specifically, a fire confirmation signal is received from the fire receiver 5.

When the fire confirmation signal is received by the abnormality information receiving unit 711, the organizing unit 712 refers to the member candidate information database 721 and organizes a self-defense fire brigade. Specifically, in the member candidate information database 721, member candidates with high priority are selected as members in order of roles starting from the highest priority until a constant number is satisfied. The member ID of the selected member is stored in the member information database 722 in association with the assigned role and assigned floor.

The role information transmitting unit 713 transmits role information that notifies the assigned role and the assigned floor to the mobile terminal 6 carried by the member selected by the organizing unit 712.
The members of the self-defense fire brigade and the roles of each member may be predetermined based on the firefighting plan. The role information notifying the assigned role and the assigned floor is sent.

When the organizing unit 712 organizes the self-defense fire brigade, the movement information acquisition unit 714 periodically acquires movement information of the mobile terminals 6 carried by members of the evacuation guidance staff. Here, the reason for acquiring the movement information of the evacuation guide staff is that the evacuation guide staff follows the head and tail of the evacuee line and guides the evacuees to the evacuation site. This is because if the moving speed can be known, it is possible to know the moving speed of the evacuee. Specifically, the movement information acquisition unit 714 refers to the member information database 722 to identify the member in charge of evacuation guidance, and sends a movement information request requesting movement information to the mobile terminal 6 carried by the identified member. Send. Then, movement information is received as a response to the transmitted movement information request.

When the movement information is acquired by the movement information acquisition unit 714, the congestion level identification unit 715 refers to the position information included in the acquired movement information and the congestion level information database 723 (especially the location information of evacuation exits). Then, the evacuation exit closest to the current location of the mobile terminal 6 that transmitted the movement information is specified. Once an evacuation exit is identified, the degree of congestion near the identified evacuation exit is determined based on the moving speed included in the received movement information. Specifically, if the moving speed (per hour) is 0 km or more and less than 1 km, the congestion level is determined to be "high," and if it is 1 km or more and less than 3 km, the congestion level is determined to be "medium." If so, the congestion level is determined to be "low". Note that this criterion is just an example, and the number of categories and threshold of the degree of congestion may be set as appropriate.

When the congestion degree identification unit 715 identifies the congestion degree, it stores the specified congestion degree in the congestion degree information database 723 in association with the identified evacuation exit. That is, after the fire confirmation signal is received by the abnormality information receiving unit 711, the congestion degree identification unit 715 identifies the congestion degree for each of the plurality of evacuation routes set in the building that is a fire prevention object. At this time, if the building has multiple floors, the congestion level identification unit 715 identifies the congestion level for each of the plurality of evacuation routes set for each floor of the building.
Note that the congestion level identification unit 715 does not necessarily need to identify the congestion levels for all evacuation routes set for a building. Of the evacuation routes set for the building, the degree of congestion may be specified only for the evacuation route designated in advance by the user of the support server 7.

The map request receiving unit 716 receives a congestion situation map request and a plan view request from the mobile terminal 6.

When the map request receiving unit 716 receives the congestion situation map request, the map generation unit 717 generates a congestion situation map by referring to the congestion degree information database 723. This congestion situation map shows the degree of congestion for each of a plurality of evacuation routes set on each floor of a building that is subject to fire prevention. Further, when the map request receiving unit 716 receives a plan view request, it generates the requested plan view by referring to the congestion degree information database 723 and the plan view database 724. This plan view shows the degree of congestion for each of the plurality of evacuation routes set for the floor.

The display control unit 718 transmits the congestion map and plan view generated by the map generation unit 717 to the mobile terminal 6. That is, the display control unit 718 causes the display unit 63 of the mobile terminal 6 to display the congestion degree specified by the congestion degree identification unit 715 for each of the plurality of evacuation routes set for the building that is a fire prevention object. At this time, if the building has multiple floors, the display control unit 718 determines the congestion level specified by the congestion level identification unit 715 for each of the plurality of evacuation routes set for each floor of the building. , is displayed on the display unit 63 of the mobile terminal 6.

1-2. Operation of disaster prevention system 1 The operation of disaster prevention system 1 will be explained. Specifically, the operation of organizing the self-defense fire brigade, the operation of identifying the degree of congestion, and the operation of providing a congestion situation map will be explained.

1-2-1. Operation of organizing a self-defense fire brigade FIG. 7 is a sequence diagram showing an example of an operation of organizing a self-defense fire brigade. This operation is executed when the fire determination unit 512 of the fire receiver 5 determines that a fire has occurred.

When the fire determining unit 512 of the fire receiver 5 determines that a fire has occurred, the fire information transmitting unit 513 transmits a fire confirmation signal to the support server 7 to notify that a fire has occurred (Sa1). When the transmitted fire confirmation signal is received by the abnormality information receiving unit 711 of the support server 7, the organizing unit 712 of the support server 7 organizes a self-defense fire brigade with reference to the member candidate information database 721 (Sa2). Specifically, in the member candidate information database 721, member candidates with high priority are selected as members in order of roles starting from the highest priority until a constant number is satisfied. The member ID of the selected member is stored in the member information database 722 in association with the assigned role and assigned floor. When the formation of the self-defense fire brigade is completed, the role information transmitting unit 713 transmits role information notifying the assigned role and the floor in charge to the mobile terminal 6 carried by the selected fire brigade (Sa3). When the transmitted role information is received by the information receiving unit 611 of the mobile terminal 6, the display control unit 612 of the mobile terminal 6 causes the display unit 63 to display the received role information in accordance with the user's operation. (Sa4).
The above is an explanation of the formation operation of the self-defense fire brigade.

1-2-2. Congestion Level Identification Operation FIG. 8 is a flow diagram illustrating an example of the congestion level identification operation. This operation is executed by the support server 7 at a predetermined cycle after the formation of the self-defense fire brigade (Sa2).

The movement information acquisition unit 714 of the support server 7 refers to the member information database 722 and identifies the member in charge of evacuation guidance (Sb1). Once the member is identified, a movement information request for movement information is sent to the mobile terminal 6 carried by the member (Sb2). Then, movement information is received as a response to this movement information request (Sb3). When the movement information is received, the congestion degree identification unit 715 refers to the position information included in the received movement information and the congestion degree information database 723 (particularly the location information of evacuation exits), and determines the location of the mobile terminal 6. The evacuation exit closest to the current location is identified (Sb4). Once the evacuation exit is identified, the degree of congestion near the evacuation exit identified in step Sb4 is determined based on the moving speed included in the received movement information (Sb5). Specifically, if the moving speed (per hour) is 0 km or more and less than 1 km, the congestion level is determined to be "high," and if it is 1 km or more and less than 3 km, the congestion level is determined to be "medium." If so, the congestion level is determined to be "low". Once the congestion degree is specified, the specified congestion degree is stored in the congestion degree information database 723 in association with the evacuation exit specified in step Sb4 (Sb6). When the storage in the database is completed, the movement information acquisition unit 714 determines whether movement information has been acquired for all the evacuation guides registered in the member information database 722 (Sb7), and If movement information has not been acquired for all evacuation guides (NO in Sb7), return to step Sb1, and if movement information has been acquired for all evacuation guides (YES in Sb7), this congestion degree identification operation is performed. finish.
The above is an explanation of the congestion degree identification operation.

1-2-3. Congestion Map Providing Operation FIG. 9 is a sequence diagram showing an example of the congestion map providing operation. This operation is executed after the formation of the self-defense fire brigade (Sa2).

The information transmitting unit 614 of the mobile terminal 6 transmits a congestion status map request to the support server 7 when the user performs an operation on the operation input unit 64 to instruct the acquisition of a congestion status map (Sc1). When the transmitted congestion situation map request is received by the map request receiving unit 716 of the support server 7, the map generation unit 717 of the support server 7 generates a congestion situation map by referring to the congestion degree information database 723 (Sc2 ). When the congestion situation map is generated, the display control unit 718 of the support server 7 transmits the generated congestion situation map to the mobile terminal 6 (Sc3). When the transmitted congestion situation map is received by the information receiving unit 611 of the mobile terminal 6, the display control unit 612 of the mobile terminal 6 displays the received congestion situation map on the display unit 63 (Sc4).

FIG. 10 is a diagram showing an example of a congestion situation map displayed on the display unit 63. This congestion situation map is composed of an elevation view M of a building that is subject to fire protection, and figures D1 to D3 indicating the degree of congestion near each evacuation exit. Note that if the congestion degree of the evacuation stairs is individually stored in the congestion degree information database 723, only the congestion degree of the evacuation stairs may be displayed, or the display may be switched. Here, the diagonal grid pattern figure D1 indicates a "high" degree of congestion, the shaded figure D2 indicates a "medium" degree of congestion, and the white figure D3 indicates a "low" degree of congestion. The map shows, for example, that the degree of congestion near the evacuation exit on the east side of the second floor is "high," and the degree of congestion near the evacuation exit on the west side of the second floor is "medium." The map also shows the floor where the fire occurred with a fire mark. By looking at this congestion situation map, users can know which evacuation routes are congested.

After the congestion map is displayed, when the user performs an operation to select a specific floor, the information transmitter 614 of the mobile terminal 6 sends a floor plan request to the support server 7 requesting a floor plan of the selected floor. (Sc5). When the transmitted plan view request is received by the map request reception unit 716 of the support server 7, the map generation unit 717 of the support server 7 refers to the congestion degree information database 723 and the plan view database 724, and selects a map request. A plan view of the floor is generated (Sc6). When the plan view is generated, the display control unit 718 of the support server 7 transmits the generated plan view to the mobile terminal 6 (Sc7). When the transmitted plan view is received by the information receiving unit 611 of the mobile terminal 6, the display control unit 612 of the mobile terminal 6 causes the display unit 63 to display the received plan view (Sc8).

FIG. 11 is a diagram showing an example of a plan view displayed on the display section 63. This plan view shows evacuation exits and the degree of congestion in the vicinity of the evacuation exits. In the figure, an evacuation exit with a diagonal grid pattern indicates that the degree of congestion near the evacuation exit is "high," and a white evacuation exit indicates that the degree of congestion near the evacuation exit is "low." That is, the figure shows that the degree of congestion at the east side evacuation exit is "high," and the degree of congestion at the west side evacuation exit is "low." Note that when the degree of congestion near the evacuation exit is "medium", a shaded evacuation exit is displayed. By looking at this floor plan, users can know which evacuation routes are congested. Note that the display of the congestion degree of each evacuation exit on this floor plan may be the congestion degree of the evacuation route from the floor of the displayed floor plan to the exit from the building when evacuating from each evacuation exit. The degree of congestion may be determined and displayed based on the average degree of congestion up to the first floor exit or the number of times the user passes through a highly crowded place.
The above is an explanation of the congestion map providing operation.

According to the disaster prevention system 1 described above, a person in the building who carries the mobile terminal 6 can know the congestion status of each evacuation route in the event of a fire outbreak. As a result, each person in the building can avoid the highly congested evacuation route and evacuate through the less congested evacuation route. In particular, according to this disaster prevention system, it is possible to check the congestion status of evacuation routes across multiple floors, so the optimal evacuation route can be selected by taking into account the congestion status of not only the floor where the user is located, but also the lower floors. be able to. In particular, if the highly congested area is in a small area, even if the evacuation line stalls for a while during evacuation, you can calmly evacuate if you know that the congestion will clear up if you move on. .

2. Modifications The above embodiment may be modified as follows. Note that two or more of the following modifications may be combined with each other.

2-1. Modification example 1
The moving speed calculation unit 613 of the mobile terminal 6 calculates the moving speed using sensors (not shown) such as an acceleration sensor and a gyro sensor included in the mobile terminal 6 instead of the position information measured by the positioning unit 66. You can do it like this.
Further, the moving speed may be calculated using a separate monitoring camera, or the number of people within a frame and the movement of people may be determined by image processing, and the congestion degree may be calculated.

Furthermore, in the above embodiment, the moving speed may not be calculated on the mobile terminal 6 side, but the moving speed may be calculated on the support server 7 side based on the position information provided from the mobile terminal 6. In that case, the mobile terminal 6 notifies the support server 7 of the first position measured by the positioning unit 66 and the second position measured a predetermined time before the first position as movement information. Then, the congestion degree identification unit 715 of the support server 7 calculates the moving speed by dividing the difference between the notified first position and the second position by the predetermined time.

2-2. Modification example 2
The abnormality information receiving unit 711 of the support server 7 receives information on the occurrence or possibility of other abnormalities such as earthquakes, tsunamis, floods, and terrorism, instead of or in addition to the fire confirmation signal, as information that may require evacuation. You may also receive information indicating the information.

2-3. Modification example 3
The movement information acquisition unit 714 of the support server 7 is not limited to the mobile terminal 6 carried by the evacuation guidance staff member, and may also acquire movement information of the mobile terminal 6 carried by other staff members. In addition, movement information on mobile terminals 6 carried by people present in the building who have not been selected as members (including potential members and those who are not) may also be acquired.

2-4. Modification example 4
When the movement information acquisition unit 714 of the support server 7 acquires movement information of not only the evacuation guidance staff but also all the people in the building, the congestion level identification unit 715 of the support server 7 acquires the movement information of each acquired movement information. The degree of congestion of the evacuation route may be determined based on the included positions. More specifically, the degree of congestion of the evacuation route may be determined based on the number of people within a predetermined area near the evacuation exit (for example, an area within a radius of 10 m from the evacuation exit). At this time, the larger the number of people in the predetermined area near the evacuation exit, the higher the degree of congestion is determined to be. In addition, when determining the degree of congestion of the evacuation route by acquiring movement information of all the people in the building, the support server 7 can determine the degree of congestion without specifying the members in charge of evacuation guidance. It is not necessary to have a function to perform the organization.

In identifying the degree of congestion based on the number of people in a predetermined area near the evacuation exit instead of the movement speed, the congestion degree identification unit 715 determines the degree of congestion in the vicinity of each evacuation exit without using the movement information acquired from the mobile terminal 6. The number of people within a predetermined area may be counted by analyzing images taken by a camera installed in the area. Here, the evacuation exit vicinity includes the evacuation exit, the passage (including the attached room) leading to the evacuation exit, and the evacuation stairs near the evacuation exit, as described above. Alternatively, the congestion degree identification unit 715 may count the number of people within a predetermined area by analyzing sounds collected by microphones installed near each evacuation exit.

2-5. Modification example 5
If three or more evacuation exits are provided on each floor of a building that is a fire prevention target, the map generation unit 717 of the support server 7 may generate a congestion situation map that shows the building in a three-dimensional view. FIG. 12 is a diagram showing an example of such a congestion situation map. As another example, instead of the congestion situation map, the map generation unit 717 may generate a congestion situation list that is a list that associates each evacuation exit with its degree of congestion.

The map generation unit 717 may also generate a congestion situation map and a plan view that express the degree of congestion of the evacuation route using colors, letters, symbols, or blinking. When expressing the degree of congestion using colors, for example, a "high" degree of congestion may be expressed in red, a "medium" degree of congestion may be expressed in yellow, and a "low" degree of congestion may be expressed in blue. In that case, instead of or in addition to the graphic D illustrated in FIG. 10, the color of the pictogram of the evacuation stairs may be changed depending on the degree of congestion. Further, when an arrow indicating an evacuation route is shown in the plan view illustrated in FIG. 11, the color of the arrow may be changed depending on the degree of congestion.

2-6. Modification example 6
The display control unit 718 of the support server 7 is not limited to the display unit 53 of the mobile terminal 6, but also digital signage installed in various parts of buildings that are subject to fire prevention, fire indicators in the self-fire alarm equipment 2, and disaster prevention It may be displayed on a display device (not shown) in the center. Here, digital signage is an electronic signboard that is equipped with an electronic display device and displays information such as advertisements, floor guides, and news. Note that when displaying on a digital signage, fire indicator, etc., the display control unit 718 is provided not in the support server 7 but in a device that controls a device that controls a display device such as a digital signage control device or a fire receiver. You can leave it there.

2-7. Modification example 7
The support server 7 may be integrated with the fire receiver 5. That is, the fire receiver 5 may perform the function of the support server 7.

2-8. Modification example 8
In the above congestion level identification operation, if a certain evacuation exit is identified as having a high congestion level, the support server 7 prompts the self-defense firefighter in charge of the evacuation exit to guide the occupants to evacuate. Good too. The details of the processing at that time are as follows.

In the above congestion level identification operation, when the congestion level identification unit 715 identifies the congestion level as “high” (Sb5), the display control unit 718 of the support server 7 displays the evacuation guide member ( In other words, an evacuation guidance instruction is transmitted to the mobile terminal 6 carried by a member of staff in charge of an evacuation exit with a "high" degree of congestion. This evacuation guidance instruction is information including the degree of congestion identified in step Sb5 and a message urging evacuation guidance of the people in the building. When this evacuation guidance instruction is received by the information receiving section 611 of the mobile terminal 6, the display control section 612 of the mobile terminal 6 causes the display section 63 to display the congestion level and message included in the received evacuation guidance instruction. After seeing this level of crowding and the message, the team member will be prompted to guide the evacuation of the people on the floor they are in charge of. As a result, evacuation guidance will be carried out by members of the team, and a calm evacuation will be achieved even at evacuation exits where traffic jams are occurring.

Note that the above message sent to the mobile terminal 6 may indicate an evacuation exit to which those in the building should be guided. Specifically, if there is another evacuation exit with a lower congestion level than the evacuation exit for which the congestion level was identified as "high" in step Sb5, the occupants are instructed to evacuate through the other evacuation exit. It may also be a message urging guidance. In that case, when the congestion level identification unit 715 identifies the congestion level as "high" (Sb5), the support server 7 refers to the congestion level information database 723 and determines whether the congestion level is on the same floor as the evacuation exit for which the congestion level has been identified. Identify the congestion level of other evacuation exits that exist in the area. Then, the two specified congestion degrees are compared. As a result of this comparison, if the degree of congestion at another evacuation exit is lower, the display control unit 612 displays the above-mentioned message urging the occupants to evacuate through the other evacuation exit. Include in evacuation guidance instructions. On the other hand, if the congestion levels at other evacuation exits are also "high," a message simply urging the occupants to evacuate is included in the evacuation guidance instruction, as described above. In this way, prompter evacuation can be achieved by prompting the staff to guide people in the building to less crowded evacuation exits.

In the evacuation guidance instruction operation described above, the evacuation guidance is directed to the evacuation guidance staff, but evacuation guidance may be temporarily directed to other staff. In that case, the support server 7 refers to the member information database 722 and identifies the member in charge of the floor of the evacuation exit where the congestion degree was identified as "high" in step Sb5. Then, the evacuation guidance instruction described above is transmitted to the mobile terminal 6 carried by the identified member.

Furthermore, in the evacuation guidance instruction operation described above, the condition of the degree of congestion that must be satisfied in order to transmit the evacuation guidance instruction is not limited to the case where the degree of congestion is "high." For example, an evacuation guidance instruction may be transmitted when the degree of congestion is "high" or "medium".

2-9. Modification 9
The support server 7 may receive a sensor alarm signal from the fire receiver 5, and after receiving the signal, may request a self-defense firefighter candidate to check the scene. A self-defense fire brigade may be formed when a notification is received that the occurrence of a fire has been confirmed as a result of the on-site confirmation.

1...Disaster prevention system, 2...Fire alarm equipment, 3...Disaster prevention support system, 4...Fire detector, 5...Fire receiver, 6...Mobile terminal, 7...Support server, 8...Communication line, 51...Control unit, 52...Storage section, 53...Display section, 54...Operation input section, 55...First communication section, 56...Second communication section, 61...Control section, 62...Storage section, 63...Display section, 64...Operation input section , 65... Communication section, 66... Positioning section, 71... Control section, 72... Storage section, 73... Communication section, 511... Fire detection signal receiving section, 512... Fire determination section, 513... Fire information transmitting section, 521... Sensing device database, 611...information receiving section, 612...display control section, 613...movement speed calculation section, 614...information transmitting section, 711...abnormality information receiving section, 712...composing section, 713...role information transmitting section, 714...movement Information acquisition unit, 715...Congestion degree identification unit, 716...Map request reception unit, 717...Map generation unit, 718...Display control unit, 721... Member candidate information database, 722... Member information database, 723...Congestion degree information database, 724...Floor plan database

Claims (3)

an abnormality information receiving unit that receives abnormality information indicating the occurrence of an abnormality or the possibility of the occurrence of an abnormality in the building;
When abnormality information is received by the abnormality information receiving unit, identifying an evacuation route closest to the position of each of the terminals obtained from information acquired from each of the terminals carried by at least one user; , determining the degree of congestion of each of the plurality of evacuation routes set for the building by specifying the degree of congestion of the identified evacuation route based on the moving speed of each of the terminals obtained from the acquired information; a congestion degree identifying unit that identifies;
A display control unit that causes a display unit to display one or more congestion degrees among the congestion degrees specified by the congestion degree identification unit for each of the plurality of evacuation routes. The at least one user is a member of the evacuation guide of the self-defense fire brigade,
Claim 1, further comprising: an acquisition unit that specifies the evacuation guidance member by referring to a member information database and acquires the information from the terminal carried by the identified evacuation guidance member. Disaster prevention system described in. When the abnormality information is received, the organization unit that organizes the self-defense fire brigade is further configured to allocate roles including the evacuation guidance staff to the members of the self-defense fire brigade according to priorities and store the assigned roles in the member information database. The disaster prevention system according to claim 2, further comprising:

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