JP7175128B2 - disaster prevention system - Google Patents

Description

TECHNICAL FIELD The present invention relates to technology for assisting evacuation of people in a building when an abnormality such as a fire occurs.

2. Description of the Related Art Conventionally, there has been known a guidance system for guiding people in a building to an evacuation route when a fire breaks out. For example, Patent Literature 1 describes an alarm system using a flash light that can notify people in the building of the occurrence of an emergency such as a fire and prompt them to evacuate.

JP 2014-186430 A

Buildings consisting of multiple stories are required by the Fire Service Act to be built so that evacuation is possible in two directions in principle. Therefore, in principle, multiple evacuation routes are secured in such buildings. However, if evacuees concentrate on one evacuation route at the time of simultaneous evacuation in such a building, the evacuation route will be congested and smooth evacuation will be hindered.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and it is an object of the present invention to inform people in the building of the degree of congestion of evacuation routes 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 unit that receives abnormality information indicating the occurrence of an abnormality in a building or the possibility of an abnormality occurring, and an abnormality information receiving unit that receives abnormality information. When received, a congestion degree identifying unit that identifies a congestion degree for each of the plurality of evacuation routes set in the building, and each congestion degree identified by the congestion degree identifying unit for each of the plurality of evacuation routes and a display control unit that causes the display unit to display one or more of the congestion degrees.

According to the disaster prevention system according to the present invention, when an abnormality such as a fire occurs, it is possible to inform people in the building of the degree of congestion of evacuation routes, and the people in the building can evacuate by selecting an evacuation route that is not crowded. can. Also, depending on the degree of congestion, self-defense firefighters can provide appropriate evacuation guidance. In the event of a fire, the self-defense fire brigade members who are in charge of the initial firefighting can select a route with a low degree of congestion and reach the place where the fire broke out.

It is a figure which shows an example of a structure of the disaster prevention system 1. FIG. It is a figure which shows an example of a structure of the fire receiver 5. FIG. 2 is a diagram showing an example of a configuration of a mobile terminal 6; FIG. 3 is a diagram showing an example of a configuration of a support server 7; FIG. It is a figure which shows an example of the member candidate information database 721. FIG. It is a figure which shows an example of the congestion degree information database 723. FIG. FIG. 10 is a sequence diagram showing an example of the formation operation of a self-defense fire brigade; FIG. 10 is a flow chart showing an example of a congestion degree specifying operation; FIG. 10 is a sequence diagram showing an example of a congestion situation map providing operation; It is a figure which shows an example of a congestion situation map. It is a figure which shows an example of a top view. It is a figure which shows 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 device 2 (hereinafter referred to as “automatic fire alarm device 2”) and a disaster prevention support system 3 .

1-1-1. Configuration of Fire Alarm Equipment 2 The fire alarm equipment 2 is installed in a building, which is a fire preventive object. Here, the building is, for example, an office building, a commercial facility, a hotel, an apartment complex such as a condominium. The self-fire alarm equipment 2 includes fire detectors 4 installed in various places in the building and fire receivers 5 installed in the disaster prevention center of the building. The fire sensor 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 the assistance server 7 . Here, the communication line 8 is, for example, a communication network such as the Internet or wireless LAN. The fire alarm equipment 2 may be a P-type equipment or an R-type equipment. In the following explanation, it is assumed that the self-fire alarm equipment 2 is an R-type equipment.

1-1-1-1. Configuration of Fire Sensor 4 The fire sensor 4 is an example of fire sensing means, such as a photoelectric smoke sensor. Although not shown, the fire detector 4 detects a fire by detecting smoke generated during a fire, and when the fire detector detects a fire, it generates a fire detection signal including an address, which is its own identification information. to the fire receiver 5. Alternatively, 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 . 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 programs stored in the storage unit 52 . The storage unit 52 is a storage device such as an HDD or flash memory, and stores programs executed by the control unit 51 and the sensor database 521 . Although illustration is omitted, the sensor database 521 stores the area number and area name of the installation location of the fire sensor 4 in association with the address of the fire sensor 4 . As a modification, the storage unit 52 may be an external storage device. Next, the display unit 53 is a display such as a liquid crystal display or an organic EL display. The operation input unit 54 is an input device such as operation buttons and a touch panel. The first communication unit 55 is a communication interface for communicating with the fire sensor 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 functions of a fire sensing signal receiving unit 511 , a fire determining unit 512 , and a fire information transmitting unit 513 by executing programs stored in the storage unit 52 .

Upon receiving the fire detection signal from the fire sensor 4, the fire detection signal reception unit 511 refers to the sensor database 521 and identifies the installation location corresponding to the address included in the signal. Also, the fire detection signal receiving unit 511 receives a fire signal from a transmitter (not shown) through a signal line.

The fire determination unit 512 determines occurrence of 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 sensor 4, when a certain time has passed since the fire detection signal was received from the first fire sensor 4, and when A fire is determined when a fire signal is received from the aircraft. The fire determination unit 512 also determines the occurrence of a fire when a fire determination operation is performed using the operation input unit 54 .
The fire detection signal transmitted from the fire sensor 4 may be a so-called analog type equipment that transmits the detection level of smoke, heat, etc. as a signal as the fire alarm equipment 2. Based on the signal from the fire detector, the machine 5 determines whether the smoke, heat, etc. are at the fire detection level.

When the fire determination unit 512 determines that a fire has occurred, the fire information transmission unit 513 transmits to the support server 7 a fire determination signal that notifies the determination of the fire. This fire confirmation signal includes information on the place 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 .
In the disaster prevention support system 3, upon receiving the fire information from the fire receiver 5, it provides information on the location of the occurrence as well as fire information such as a sensor notification and a fire alarm to the plurality of portable terminals 6, or provides fire information such as a fire alarm, which will be described later. It provides information, etc. to support self-defense firefighting activities.

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 . The portable terminal 6 is a terminal carried by a person in the building, which is the object of fire prevention. Specifically, they 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 programs 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 such as a liquid crystal display or an organic EL display. The operation input unit 64 is an input device such as operation buttons and 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 well-known indoor positioning technology. For example, the current position is measured based on the radio wave intensity of beacon signals received from BLE (Bluetooth (registered trademark) Low Energy) beacon transmitters installed in various places in the building. Alternatively, the current position of the mobile terminal 6 may be specified using Wi-Fi (registered trademark) positioning or IMES (Indoor Messaging System).

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

The information receiving unit 611 receives the role information, the movement information request, the congestion status map, and the plan view from the support server 7 . These pieces of information will be described later.

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

When the information receiving unit 611 receives the movement information request, the moving speed calculating unit 613 calculates the moving speed of the mobile terminal 6 . 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 the predetermined time. be.

When the information receiving section 611 receives the movement information request, the information transmitting section 614 returns the movement information to the support server 7 . This movement information includes the current position of the mobile terminal 6 measured by the positioning unit 66 and the movement speed calculated by the movement speed calculation unit 613 . In addition, the information transmitting unit 614 transmits a congestion map request to the support server 7 when the operation input unit 64 is operated by the user to instruct acquisition of the congestion map. Further, after the congestion map is displayed on the display unit 63, when the operation input unit 64 is operated by the user to select a specific floor, the information transmission unit 614 requests a plan view of the selected floor. A drawing 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 . The support server 7 is a computer device for notifying people in the building carrying the mobile terminal 6 of the degree of congestion of the evacuation routes set in the building, which is the object of fire prevention. The 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 programs stored in the storage unit 72 .

The storage unit 72 is a storage device such as an HDD or 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. As shown in FIG. The member candidate information database 721 is a database that stores member IDs of member candidates in association with each role of the self-defense fire brigade. Specifically, the role of the self-defense fire brigade, the fixed number of members selected for the 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 portable terminal 6 carried by the member candidate.

Here, the self-defense fire brigade is a self-defense organization composed of people in the building, which is the object of fire prevention, and is an organization for taking an initial response to an abnormality occurring in the building. More specifically, it is an organization established to ensure the safety of building users by smoothly implementing initial responses and emergency measures in the event of a disaster such as a fire or earthquake. Members of the self-defense fire brigade belong to the main unit and district units, and the roles of each member include, for example, initial firefighting personnel, evacuation guidance personnel, safety protection personnel, reporting and communication personnel, first aid personnel, emergency evacuation personnel, 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 illustration is omitted, the member ID, the role assigned to the member, and the floor that 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. As shown in FIG. The congestion level information database 723 is a database that stores the congestion levels of evacuation routes set for buildings that are fire prevention objects. Specifically, the location of the evacuation exit and the degree of congestion near 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 means an evacuation exit, a passage (including an attached room) leading to the evacuation exit, and an evacuation staircase (emergency staircase) in the vicinity of the evacuation exit. In addition, the evacuation stairs are not included near the evacuation exit. may be stored. The degree of congestion is the degree of congestion of evacuees. Next, the plan view database 724 stores image data representing a plan map of each floor of the building, which is the object of fire prevention, although illustration is omitted. 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 .

By executing the programs stored in the storage unit 72, the control unit 71 of the support server 7 controls an abnormality information receiving unit 711, a organizing unit 712, a role information transmitting unit 713, a movement information acquiring unit 714, a congestion The functions of a degree specifying unit 715, a map request receiving unit 716, a map generating unit 717, and a display control unit 718 are realized.

The anomaly information receiving unit 711 receives anomaly information indicating occurrence of an anomaly in a building, which is a fire prevention object. Specifically, it receives a fire determination signal from the fire receiver 5 .

When the abnormality information receiving unit 711 receives the fire confirmation signal, the organizing unit 712 refers to the candidate member information database 721 to organize a self-defense fire brigade. Specifically, in the candidate member information database 721, candidate members with higher priority are selected as members until the fixed 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 transmission unit 713 transmits role information for notifying the assigned role and assigned floor to the portable terminal 6 carried by the member selected by the organization unit 712 .
The members of the self-defense fire brigade and the roles of each member may be predetermined based on the fire fighting plan. It transmits role information that notifies the assigned role and assigned floor.

When the self-defense fire brigade is formed by the formation unit 712, the movement information acquisition unit 714 periodically acquires the movement information of the portable terminal 6 carried by the member in charge of evacuation guidance. Here, the reason for acquiring the movement information of the evacuation guidance personnel is that the evacuation guidance personnel have the role of guiding the evacuees to the evacuation site at the beginning and end of the platoon of evacuees. This is because it is considered that if the moving speed can be known, the moving speed of the evacuee can be known. Specifically, the movement information acquisition unit 714 refers to the member information database 722 to identify a member in charge of evacuation guidance, and sends a movement information request to the mobile terminal 6 carried by the identified member. to send. Then, it receives movement information as a response to the transmitted movement information request.

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

After identifying the congestion degree, the congestion degree identification unit 715 stores the identified congestion degree in the congestion degree information database 723 in association with the identified evacuation exit. That is, after the abnormality information receiving unit 711 receives the fire determination signal, the congestion degree specifying unit 715 specifies the congestion degree for each of the plurality of evacuation routes set in the building that is the object of fire prevention. At this time, if the building is a multi-floor building, the congestion degree identifying unit 715 identifies the congestion degree for each of the plurality of evacuation routes set for each floor of the building.
Note that the congestion degree identifying unit 715 does not necessarily have to identify congestion degrees for all evacuation routes set in buildings. The degree of congestion may be specified only for an evacuation route designated in advance by the user of the support server 7 among the evacuation routes set for the building.

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 map request, the map generating unit 717 refers to the congestion level information database 723 to generate a congestion map. This congestion map shows the degree of congestion for each of a plurality of evacuation routes set on each floor of the building, which is the object of fire prevention. When the map request receiving unit 716 receives a plan view request, it refers to the congestion level information database 723 and the plan view database 724 to generate the requested plan view. This plan view shows the degree of congestion for each of the plurality of evacuation routes set on the floor.

The display control unit 718 transmits the congestion status map and the 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 degree of congestion identified by the degree-of-congestion identification unit 715 for each of the plurality of evacuation routes set for the building that is the object of fire prevention. At this time, if the building is a multi-story building, the display control unit 718 determines the degree of congestion identified by the degree-of-congestion 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 Operation of the disaster prevention system 1 will be described. Concretely, the formation operation of the self-defense fire brigade, the congestion degree specifying operation, and the congestion situation map providing operation will be described.

1-2-1. Formation Operation of Self-defense Fire Brigade FIG. 7 is a sequence diagram showing an example of the formation operation of the 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 determination unit 512 of the fire receiver 5 determines that a fire has occurred, the fire information transmission unit 513 transmits a fire determination signal that notifies the determination of the fire to the support server 7 (Sa1). When the transmitted fire confirmation signal is received by the abnormality information receiving section 711 of the support server 7, the formation section 712 of the support server 7 forms a self-defense fire brigade with reference to the member candidate information database 721 (Sa2). Specifically, in the candidate member information database 721, candidate members with higher priority are selected as members until the fixed 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 for notifying the assigned role and the floor in charge to the portable terminal 6 carried by the selected member (Sa3). When the transmitted role information 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 received role information according to the user's operation. (Sa4).
The above is the description of the formation operation of the self-defense fire brigade.

1-2-2. Congestion Degree Identifying Operation FIG. 8 is a flow diagram showing an example of the congestion degree identifying operation. This operation is performed at a predetermined cycle by the support server 7 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 of the evacuation guidance staff (Sb1). When the member is specified, a movement information request requesting movement information is transmitted to the portable 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 level identification unit 715 refers to the location information included in the received movement information and the congestion level information database 723 (particularly information on the locations of evacuation exits) to determine whether the portable terminal 6 specifies the nearest evacuation exit to the current position of (Sb4). Once the evacuation exit is identified, the degree of congestion near the evacuation exit identified in step Sb4 is identified based on the moving speed included in the received movement information (Sb5). Specifically, when the moving speed (speed per hour) is 0 km or more and less than 1 km, the degree of congestion is determined to be “high”, when it is 1 km or more and less than 3 km, the degree of congestion is determined to be “medium”, and when the speed is 3 km or more. If so, the congestion degree is determined to be "low". When the congestion degree is identified, the identified congestion degree is stored in the congestion degree information database 723 in association with the evacuation exit identified 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 evacuation guidance personnel registered in the member information database 722 (Sb7). (NO in Sb7), the process returns to step Sb1, and when movement information has been obtained for all evacuation guides (YES in Sb7), this congestion degree specifying operation is finish.
The above is the description of the congestion degree specifying 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 formation of the self-defense fire brigade (Sa2).

The information transmission unit 614 of the portable terminal 6 transmits a congestion map request to the support server 7 when the operation input unit 64 is operated by the user to instruct acquisition of the congestion map (Sc1). When the transmitted congestion map request is received by the map request receiver 716 of the support server 7, the map generator 717 of the support server 7 refers to the congestion level information database 723 to generate a congestion map (Sc2 ). When the congestion map is generated, the display control unit 718 of the support server 7 transmits the generated congestion map to the mobile terminal 6 (Sc3). When the transmitted congestion 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 map on the display unit 63 (Sc4).

FIG. 10 is a diagram showing an example of the congestion status map displayed on the display unit 63. As shown in FIG. This congestion map is composed of an elevation view M of a building, which is a fire preventive object, and figures D1 to D3 indicating the degree of congestion in the vicinity of each evacuation exit. When 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 thereof may be switched. Here, the diagonal grid pattern figure D1 indicates a "high" congestion level, the shaded figure D2 indicates a "medium" congestion level, and the white figure D3 indicates a "low" congestion level. The map indicates, for example, that the congestion level near the evacuation exit on the east side of the second floor is "high" and the congestion level near the evacuation exit on the west side of the second floor is "medium". In addition, on the same map, the floor where the fire occurred is also indicated by a fire mark. By looking at this congestion map, the user can know which evacuation route is congested.

After the congestion map is displayed, when the user performs an operation to select a specific floor, the information transmission unit 614 of the mobile terminal 6 sends a floor plan request to the support server 7 for the 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 level information database 723 and the plan view database 724 to determine the selected map. A plan view of the first 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 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 received plan view (Sc8).

FIG. 11 is a diagram showing an example of a plan view displayed on the display unit 63. As shown in FIG. This plan view shows the evacuation exits and the degree of congestion in the vicinity of the evacuation exits. In the figure, evacuation exits with a diagonal grid pattern indicate that the degree of congestion near the evacuation exit is "high", and white evacuation exits indicate that the congestion degree near the evacuation exit is "low". That is, the figure shows that the congestion degree of the evacuation exit on the east side is "high" and the congestion degree of the evacuation exit on the west side is "low". If the degree of congestion near the evacuation exit is "medium", the hatched evacuation exit is displayed. By looking at this plan view, the user can know which evacuation route is congested. The display of the degree of congestion of each evacuation exit on this floor plan may be the degree of congestion of the evacuation route to exit 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 exit on the first floor or the number of times a person passes through a place with a high degree of congestion.
The above is the description of the congestion situation map providing operation.

According to the disaster prevention system 1 described above, a person in the building carrying the mobile terminal 6 can know the congestion status of each evacuation route when a fire occurs. As a result, each person in the building can avoid a highly congested evacuation route and evacuate through a less congested evacuation route. In particular, according to this disaster prevention system, since it is possible to check the congestion status of evacuation routes over multiple floors, the optimal evacuation route can be selected by taking into account not only the congestion status of the floor where the user is located, but also the congestion status of the lower floors. be able to. In particular, if a highly congested area is in a narrow area, even if the evacuation line stagnates for a while during evacuation, if information is known that the congestion will disappear if you move ahead, you can evacuate calmly. .

2. Modifications The above embodiments may be modified as follows. It should be noted that the following two or more modified examples may be combined with each other.

2-1. Modification 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 may do so.
Further, the moving speed may be calculated using a separate monitoring camera, or the number of people in the frame and the movement of people may be determined by image processing, and the degree of congestion may be determined.

In the above embodiment, the mobile terminal 6 may not calculate the moving speed, but the support server 7 may calculate the moving speed based on the position information provided from the mobile terminal 6 . In this case, the portable 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 specifying 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 2
The abnormal condition information receiving unit 711 of the support server 7 receives the occurrence or possibility of other abnormal conditions such as an earthquake, tsunami, flood, terrorism, etc. You may make it receive the information which shows.

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

2-4. Modification 4
When the movement information acquisition unit 714 of the support server 7 acquires the movement information of not only the evacuation guidance personnel but also the entire people in the building, the congestion level identification unit 715 of the support server 7 adds each acquired movement information You may specify the congestion degree of an evacuation route based on the position included. More specifically, the congestion degree of the evacuation route may be specified based on the number of people in a predetermined area near the evacuation exit (for example, an area with a radius of 10 m from the evacuation exit). At that time, it is determined that the greater the number of people in the predetermined area near the evacuation exit, the higher the degree of congestion. In addition, when the movement information of all people in the building is acquired and the degree of congestion of the evacuation route is specified, the support server 7 can determine the degree of congestion without specifying the personnel in charge of evacuation guidance. It is not necessary to have the function of performing the knitting.

When specifying the degree of congestion based on the number of people in the predetermined area near the evacuation exit instead of the movement speed, the congestion degree identification unit 715 does not rely on the movement information acquired from the mobile terminal 6, The number of people in a predetermined area may be counted by analyzing an image captured by a camera installed in the area. Here, the vicinity of the evacuation exit is, as described above, the evacuation exit, the passage (including the attached room) leading to the evacuation exit, and the evacuation stairs in the vicinity of the evacuation exit. Alternatively, the congestion level identification unit 715 may count the number of people in a predetermined area by analyzing voices collected by microphones installed near each evacuation exit.

2-5. Modification 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 map that shows the building in a three-dimensional view. FIG. 12 is a diagram showing an example of such a congestion map. As another example, the map generation unit 717 may generate a congestion status list, which is a list in which each evacuation exit and its congestion degree are associated with each other, instead of the congestion status map.

In addition, the map generation unit 717 may generate a congestion status map and a plan view that express the degree of congestion of the evacuation route using colors, characters, symbols, or blinking. When expressing the congestion degree by color, for example, a “high” congestion degree may be expressed in red, a “medium” congestion degree may be expressed in yellow, and a “low” congestion degree may be expressed in blue. In that case, instead of or in addition to graphic D illustrated in FIG. 10, the color of the pictogram of the evacuation stairs may be changed according to 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 according to the degree of congestion.

2-6. Modification 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 places of the building which is a fire prevention object, a fire display device in the fire alarm equipment 2, and a disaster prevention unit. It may be displayed on a display device (none of which is shown) in the center. Here, digital signage is an electronic signboard that has an electronic display device and displays information such as advertisements, floor guides, and news. When displaying on a digital signage, a fire display, or the like, the display control unit 718 is provided not in the support server 7 but in a device that controls a display device such as a digital signage control device or a fire receiver. may be

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

2-8. Modification 8
In the above-described congestion degree identifying operation, when a certain evacuation exit is identified as having a congestion degree of “high,” the support server 7 prompts the self-defense fire brigade member in charge of the evacuation exit to evacuate the people in the building. good too. The contents of the processing at that time are as follows.

In the congestion level specifying operation, when the congestion level specifying unit 715 specifies the congestion level "high" (Sb5), the display control unit 718 of the support server 7 instructs the evacuation guidance personnel specified in step Sb1 ( In other words, the evacuation guidance instruction is transmitted to the portable terminal 6 carried by the member who is in charge of the evacuation exit with the "high" congestion degree. This evacuation guidance instruction is information including the degree of congestion specified in step Sb5 and a message prompting evacuation guidance for 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 degree of congestion and the message included in the received evacuation guidance instruction. Upon seeing the degree of congestion and the message, the team member will be prompted to evacuate the people on the floor he or she is in charge of. As a result, evacuation guidance is performed by the team members, and calm evacuation is realized even at evacuation exits where traffic congestion is occurring.

The above-mentioned message transmitted to the portable terminal 6 may indicate an evacuation exit to which the people in the building should be guided. Specifically, if there is another evacuation exit with a lower congestion degree than the evacuation exit for which the congestion degree "high" was specified in step Sb5, the people in the building are instructed to evacuate through the other evacuation exit. It may be a message prompting the user to guide the user. In this case, when the congestion degree identification unit 715 identifies the congestion degree “high” (Sb5), the support server 7 refers to the congestion degree information database 723 and Identify the degree of congestion of other evacuation exits that exist in Then, the two identified congestion degrees are compared. As a result of this comparison, if the congestion degree of the other evacuation exit is lower, the display control unit 612 displays a message prompting the occupants to evacuate through the other evacuation exit. Include in evacuation instructions. On the other hand, if the degree of congestion of the other evacuation exits is also "high", the evacuation guidance instruction simply includes a message prompting evacuation guidance for those present in the building, as described above. In this way, quicker evacuation can be realized by prompting the personnel to guide the people in the building to an evacuation exit with a lower degree of congestion.

In the evacuation guidance instruction operation described above, evacuation guidance is instructed to a member of the evacuation guidance section, but evacuation guidance may be temporarily instructed to another section member. In this case, the support server 7 refers to the staff member information database 722 to identify the staff member in charge of the floor of the evacuation exit for which the "high" congestion level was specified in step Sb5. Then, the evacuation guidance instruction is transmitted to the portable terminal 6 carried by the identified member.

In addition, in the evacuation guidance instruction operation described above, the congestion degree condition to be satisfied for transmitting the evacuation guidance instruction is not limited to the case where the congestion degree is "high". For example, when the degree of congestion is "high" or "medium", an evacuation guidance instruction may be transmitted.

2-9. Modification 9
The support server 7 may be configured to receive a sensor alarm signal from the fire receiver 5, and after receiving the signal, request the candidate for the self-defense fire brigade member to check the scene. Then, as a result of checking the site, when a notification to the effect that the occurrence of a fire has been confirmed is received, a self-defense fire brigade may be organized.

DESCRIPTION OF SYMBOLS 1... Disaster prevention system, 2... Fire alarm equipment, 3... Disaster prevention support system, 4... Fire sensor, 5... Fire receiver, 6... Portable terminal, 7... Support server, 8... Communication line, 51... Control part, 52... Storage unit 53... Display unit 54... Operation input unit 55... First communication unit 56... Second communication unit 61... Control unit 62... Storage unit 63... Display unit 64... Operation input unit , 65... communication unit, 66... positioning unit, 71... control unit, 72... storage unit, 73... communication unit, 511... fire detection signal reception unit, 512... fire determination unit, 513... fire information transmission unit, 521... detection Device database 611 Information reception unit 612 Display control unit 613 Movement speed calculation unit 614 Information transmission unit 711 Abnormality information reception unit 712 Organization unit 713 Role information transmission unit 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 anomaly information receiving unit for receiving anomaly information indicating the occurrence of an anomaly or the possibility of an anomaly occurring in a multi-story building;
a congestion degree identifying unit that identifies a degree of congestion near an evacuation exit for each of a plurality of evacuation routes set on each floor of the building when abnormality information is received by the abnormality information receiving unit;
A user carries an elevation view or a three-dimensional view of the building including the degree of congestion near each evacuation exit identified by the congestion degree identification unit for each of the plurality of evacuation routes set on each floor of the building. A disaster prevention system comprising: a display control unit for displaying on a display unit of a terminal to an anomaly information receiving unit for receiving anomaly information indicating the occurrence of an anomaly in a building or the possibility of an anomaly occurring;
a congestion degree identifying unit that identifies a degree of congestion for each of a plurality of evacuation routes set in the building when the abnormality information is received by the abnormality information receiving unit;
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 specifying unit for each of the plurality of evacuation routes;
The display control unit, when the degree of congestion specified by the congestion degree specifying unit for one evacuation route among the plurality of evacuation routes is equal to or higher than a predetermined degree, the self-defense fire brigade member in charge of the one evacuation route 1. A disaster prevention system characterized by displaying, on a display unit of a portable terminal, a congestion level specified for the one evacuation route and a message prompting evacuation guidance for people present in the building. The display control unit, when there is another evacuation route with a lower congestion degree than the one evacuation route among the plurality of evacuation routes, instructs people in the building to evacuate through the other evacuation route. 3. The disaster prevention system according to claim 2, wherein a message prompting guidance is displayed on the display unit of the terminal.

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