JP6843718B2 - Disaster prevention system - Google Patents

Description

The present invention relates to a technique for supporting evacuation of a resident in the event of an abnormality such as a fire.

Conventionally, a guidance system for guiding evacuation routes to residents in the event of a fire has been known. For example, Patent Document 1 describes an alarm system using flash light that can notify the resident of an emergency such as a fire and urge the evacuation of the resident.

Japanese Unexamined Patent Publication No. 2014-186430

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

The present invention has been made in view of such circumstances, and an object of the present invention is to realize smooth evacuation in the event of an abnormality such as a fire.

In order to solve the above problems, in the disaster prevention system according to the present invention, the abnormality information receiving unit that receives the abnormality information indicating the occurrence of the abnormality or the possibility of the abnormality occurrence in the building, and the abnormality information receiving unit generate the abnormality information. When received, the congestion degree specifying unit that specifies the congestion degree for the evacuation route set in each of the plurality of areas of the building and the congestion degree that is specified by the congestion degree specifying unit among the plurality of areas. Based on this, a broadcast target area identification unit that specifies an area for broadcasting an evacuation support message and a broadcast control unit that outputs the evacuation support message by voice from a speaker installed in the area specified by the broadcast target area identification unit. Be prepared.

According to the disaster prevention system according to the present invention, smooth evacuation can be realized in the event of an abnormality such as a fire.

It is a figure which shows an example of the structure of the disaster prevention system 1. It is a figure which shows an example of the structure of the fire receiver 5. It is a figure which shows an example of the structure of a mobile terminal 6. It is a figure which shows an example of the structure of the support server 7. It is a figure which shows an example of the member candidate information database 721. It is a figure which shows an example of the congestion degree information database 723. It is a figure which shows an example of the structure of the emergency broadcasting equipment 9. It is a figure which shows an example of a message database 921. It is a sequence diagram which shows an example of the formation operation of the self-defense fire brigade. It is a flow chart which shows an example of the congestion degree identification operation. It is a sequence diagram which shows an example of a fire broadcasting operation. It is a flow chart which shows an example of the evacuation support broadcasting operation.

1. 1. Embodiment 1-1. Configuration of Disaster Prevention System 1 FIG. 1 is a diagram showing an example of the configuration of the disaster prevention system 1 according to the embodiment of the present invention. The disaster prevention system 1 includes an automatic fire alarm system 2 (hereinafter, “self-fire alarm system 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 a fire prevention object. Here, the building is, for example, an apartment building such as an office building, a commercial facility, a hotel, or a condominium. The self-fire alarm equipment 2 includes fire detectors 4 installed in various parts of the building and fire receivers 5 installed in 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 to the support server 7 and the emergency broadcasting equipment 9 directly or via the communication line 10. Here, the communication line 10 is, for example, a communication network such as the Internet or a wireless LAN. The self-fire alarm equipment 2 may be a P-type equipment or an R-type equipment. In the following description, it is assumed that the self-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 a fire detection means, for example, a photoelectric smoke detector. Although not shown, the fire detector 4 includes a fire detection unit that detects smoke generated at the time of a fire to detect a fire, and a fire detection signal that includes an address that is self-identification information when the fire detection unit detects a fire. Is provided with a signal transmission unit that transmits the above to the fire receiver 5. As a modification, the fire detector 4 may be another type of detector such as a heat detector or a flame detector.

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 unit 51, a storage unit 52, a display unit 53, an operation input unit 54, a first communication unit 55, and a second communication unit 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 the district name of the installation location of the detector in association with the address of the fire detector 4. As a modification, the storage unit 52 may be an external storage device. Next, the display unit 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 and the emergency broadcasting equipment 9 via the communication line 10.

The control unit 51 of the fire receiver 5 realizes the functions of the fire detection signal receiving unit 511, the fire determination unit 512, and the fire information transmitting unit 513 by executing the program stored in the storage unit 52.

When the fire detection signal receiving unit 511 receives the fire detection signal from the fire detector 4, the fire detection signal receiving unit 511 refers to the detector database 521 and specifies the installation location corresponding to the address included in the signal. Further, the fire detection signal receiving unit 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, and when a certain period of time has passed since the fire detection signal was received from the first fire detector 4, the transmission is transmitted. When a fire signal is received from the machine, the occurrence of a fire is determined. Further, the fire determination unit 512 also determines the occurrence of a fire when a fire confirmation operation is performed using the operation input unit 54.

When the fire determination unit 512 determines that a fire has occurred, the fire information transmission unit 513 transmits a fire confirmation signal notifying the confirmation of the fire to the support server 7 and the emergency broadcasting equipment 9. This fire confirmation signal includes information on the location of the fire.

1-1-2. Configuration of Disaster Prevention Support System 3 The disaster prevention support system 3 includes a plurality of mobile terminals 6, a support server 7, a plurality of speakers 8, and an emergency broadcasting facility 9. The mobile terminal 6 and the support server 7 are connected via the communication line 10. The speaker 8 and the emergency broadcasting equipment 9 are connected via a signal line. As a modification, the speaker 8 and the emergency broadcasting equipment 9 may be connected via a wireless communication line.

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 mobile terminal 6 is a terminal carried by a person in the building, which is a fire prevention object. Specifically, it is a smartphone, a mobile phone, a tablet terminal, or a wearable terminal. The mobile terminal 6 includes a control unit 61, a storage unit 62, a display unit 63, an operation input unit 64, a communication unit 65, and a positioning unit 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 a program 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 10. The positioning unit 66 measures the current position of the mobile terminal 6 using a well-known indoor positioning technique. For example, the current position is measured based on the signal strength of the beacon signal received from the BLE (Bluetooth (registered trademark) Low Energy) beacon transmitter installed in various parts of 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 realizes the functions of the information receiving unit 611, the display control unit 612, the movement speed calculation unit 613, and the information transmission unit 614 by executing the program stored in the storage unit 62.

The information receiving unit 611 receives the role information and the movement information request 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 received by the information receiving unit 611.

When the movement information request is received by the information receiving unit 611, the moving speed calculation 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 a predetermined time. To.

When the information transmission unit 614 receives the movement information request by the information reception unit 611, the information transmission unit 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.

1-1-2-2. Configuration of Support Server 7 FIG. 4 is a diagram showing an example of the configuration of support server 7. The support server 7 is a computer device for managing the degree of congestion of the evacuation route set in the building which is the fire prevention target. The support server 7 includes a control unit 71, a storage unit 72, and a communication unit 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 a program executed by the control unit 71. In addition, the storage unit 72 stores the member candidate information database 721, the member information database 722, and the congestion degree information database 723. 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 the member IDs of the member candidates in association with each role of the self-defense fire brigade. Specifically, it corresponds to the role of the self-defense fire brigade, the fixed number of members selected for the role, the priority of the role when selecting the member, 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.

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 initial response to abnormalities that occur in the building. More specifically, it is an organization established to ensure the safety of building users by smoothly performing initial response 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 headquarters and district units, and the roles of each member include, for example, initial fire extinguishing staff, evacuation guidance staff, safety protection staff, reporting liaison staff, emergency rescue staff, emergency carry-out 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 in charge of the member 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 the evacuation route set in the building that is the fire prevention target. 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 port is specifically an evacuation port, a passage leading to the evacuation port (including an annex), and an evacuation staircase (emergency staircase) near the evacuation port. The degree of congestion is the degree of congestion of evacuees. 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 10.

By executing the program stored in the storage unit 72, the control unit 71 of the support server 7 is congested with the abnormality information reception unit 711, the organization unit 712, the role information transmission unit 713, the movement information acquisition unit 714, and the movement information acquisition unit 714. The functions of the degree specifying unit 715 and the congestion degree information transmitting unit 716 are realized.

The abnormality information receiving unit 711 receives the abnormality information indicating the occurrence of the abnormality in the building which is the fire prevention object. Specifically, the 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 organization unit 712 organizes the self-defense fire brigade with reference to the member candidate information database 721. Specifically, in the member candidate information database 721, the members with the highest priority are selected as the members until the fixed number is satisfied, in order from the role with the highest priority. The member ID of the selected member is associated with the assigned role and the floor in charge, and is stored in the member information database 722.

The role information transmission unit 713 transmits role information notifying the assigned role and the floor in charge to the mobile terminal 6 carried by the member selected by the organization unit 712.

When the self-defense fire brigade is formed by the organization unit 712, the movement information acquisition unit 714 periodically acquires the movement information of the mobile terminal 6 carried by the member of the evacuation guidance staff. Here, the reason for acquiring the movement information of the evacuation guidance staff is that the evacuation guidance staff is attached to the beginning and the end of the evacuees' formation and guides the evacuees to the evacuation site. This is because if the moving speed can be known, it is considered that the moving speed of the evacuees can be known. Specifically, the movement information acquisition unit 714 identifies a member of the evacuation guidance staff with reference to the member information database 722, and requests movement information from the mobile terminal 6 carried by the specified member. To send. Then, the 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 degree identification unit 715 refers to the location information included in the acquired movement information and the congestion degree information database 723 (particularly, the location information of the evacuation exit). Then, the evacuation port closest to the current position of the mobile terminal 6 that has transmitted the movement information is specified. When the evacuation port is specified, the degree of congestion near the specified evacuation port is specified based on the movement speed included in the received movement information. Specifically, when the moving speed (speed) is 0 km or more and less than 1 km, it is judged as "high", and when it is 1 km or more and less than 3 km, it is judged as "medium" and 3 km or more. In that case, it is determined that the degree of congestion is "low". It should be noted that this determination criterion is only an example, and the number of categories and the threshold value of the degree of congestion may be set as appropriate.

When the congestion degree is specified, the congestion degree specifying unit 715 stores the specified congestion degree in the congestion degree information database 723 in association with the specified evacuation port. That is, the congestion degree specifying unit 715 specifies the congestion degree for each of the plurality of evacuation routes set in the building which is the fire prevention target after the fire confirmation signal is received by the abnormality information receiving unit 711. At that time, when the building is a building having a plurality of floors, the congestion degree specifying unit 715 specifies the congestion degree for each of the plurality of evacuation routes set on each floor of the building.

The congestion degree information transmission unit 716 transmits the congestion degree information of each evacuation port stored in the congestion degree information database 723 to the emergency broadcasting equipment 9 each time the congestion degree identification operation described later is executed. ..

1-1-2-3. Configuration of Speaker 8 Speaker 8 is installed in various places in a building that is a fire prevention object. The speaker 8 receives a voice message from the emergency broadcasting equipment 9 and outputs the voice message.

1-1-2-4. Configuration of Emergency Broadcasting Equipment 9 FIG. 7 is a diagram showing an example of the configuration of emergency broadcasting equipment 9. When a fire breaks out in a building that is a fire prevention object, the emergency broadcasting facility 9 transmits a voice message notifying the occurrence of the fire and a voice message for supporting the evacuation of residents via the speaker 8. It is a device for broadcasting. The emergency broadcasting equipment 9 includes a control unit 91, a storage unit 92, a first communication unit 93, and a second communication unit 94.

The control unit 91 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 92.

The storage unit 92 is a storage device such as an HDD or a flash memory, and stores a program executed by the control unit 91. Further, the storage unit 92 stores the message database 921, the congestion degree information database 922, and the speaker information database 923. FIG. 8 is a diagram showing an example of the message database 921. The message database 921 is a database that stores a voice message for broadcasting and a situation in which the voice message is broadcast in association with each other. Specifically, the fire broadcast message and the evacuation support message are stored (the message shown in FIG. 8 is just an example). Here, the evacuation support message is a message that encourages a calm evacuation while notifying the residents that the evacuation route is congested. Next, the congestion degree information database 922 is a database that stores the congestion degree of the evacuation route set in the building that is the fire prevention target. Since the data structure of the congestion degree information database 922 is the same as that of the congestion degree information database 723 included in the support server 7, detailed description thereof will be omitted. Although not shown, the speaker information database 923 stores the installation floor of the speaker in association with the address which is the identification information of the speaker 8.

The first communication unit 93 is a communication interface for communicating with the fire receiver 5 via the communication line 10. The second communication unit 94 is a communication interface for communicating with the speaker 8 via a signal line.

By executing the program stored in the storage unit 92, the control unit 91 of the emergency broadcasting equipment 9 includes the abnormality information receiving unit 911, the message specifying unit 912, the speaker specifying unit 913, and the broadcasting control unit 914. The functions of the broadcast target area specifying unit 915 and the congestion degree information receiving unit 916 are realized.

The abnormality information receiving unit 911 receives the abnormality information indicating the occurrence of the abnormality in the building which is the fire prevention object. Specifically, the fire confirmation signal is received from the fire receiver 5.

When the fire confirmation signal is received by the abnormality information receiving unit 911, the message specifying unit 912 identifies the fire broadcasting message with reference to the message database 921. Further, in the evacuation support broadcasting operation performed after the fire broadcast, the evacuation support message to be broadcast to the area (specifically, the floor) specified by the broadcasting target area specifying unit 915 is specified by referring to the message database 921. ..

When the fire confirmation signal is received by the abnormality information receiving unit 911, the speaker specifying unit 913 identifies all the speakers 8 with reference to the speaker information database 923. Further, in the evacuation support broadcasting operation performed after the fire broadcast, when the broadcasting target floor is specified by the broadcasting target area specifying unit 915, the speaker 8 installed on the specified broadcasting target floor is referred to with reference to the speaker information database 923. To identify.

When the fire confirmation signal is received by the abnormality information receiving unit 911, the broadcast control unit 914 sends the fire broadcast message specified by the message specifying unit 912 from all the speakers 8 specified by the speaker specifying unit 913 to extinguishing the fire. Repeatedly output audio. Further, in the evacuation support broadcasting operation performed after the fire broadcast, the evacuation support message is output by voice from the speaker 8 installed in the area (specifically, the floor) specified by the broadcasting target area specifying unit 915. At that time, the evacuation support message is output by voice between the fire broadcast messages. Instead of the fire broadcast message, the evacuation support message may be output by voice only in the specified area.

After the fire broadcast, the broadcast target area identification unit 915 refers to the congestion degree information database 922 among a plurality of areas (specifically, floors) in the building that is the fire prevention target (in other words, the support server 7). (Based on the degree of congestion specified by the congestion degree identification unit 715), the area for broadcasting the evacuation support message is specified. At that time, in the congestion degree information database 922, the floor near the evacuation exit where the congestion degree is "medium" or higher is specified as an area for broadcasting the evacuation support message. As a modified example, only the floor near the evacuation port where the degree of congestion is "high" may be specified as an area for broadcasting the evacuation support message.

When the congestion degree information receiving unit 916 receives the congestion degree information from the support server 7, the congestion degree information database 922 is updated with the received congestion degree information. That is, the data of the congestion degree information database 723 of the support server 7 and the data of the congestion degree information database 922 are synchronized.

1-2. Operation of disaster prevention system 1 The operation of disaster prevention system 1 will be described. Specifically, the formation operation of the self-defense fire brigade, the congestion degree identification operation, the fire broadcasting operation, and the evacuation support broadcasting operation will be described.

1-2-1. The formation operation of the self-defense fire brigade FIG. 9 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 the occurrence of a fire.

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 confirmation signal notifying the confirmation of the fire to the support server 7 (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, the members with the highest priority are selected as the members until the fixed number is satisfied, in order from the role with the highest priority. The member ID of the selected member is associated with the assigned role and the floor in charge, and is stored in the member information database 722. When the formation of the self-defense fire brigade is completed, the role information transmission unit 713 transmits role information notifying the assigned role and the floor in charge to the mobile terminal 6 carried by the selected member (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 response to the operation of the user. (Sa4).
The above is the explanation of the formation operation of the self-defense fire brigade.

1-2-2. Congestion degree specifying operation FIG. 10 is a flow diagram showing an example of a congestion degree specifying 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 of the evacuation guidance staff (Sb1). When the member is specified, the movement information request requesting the movement information is transmitted to the mobile terminal 6 carried by the member (Sb2). Then, the movement information is received as a response to the movement information request (Sb3). When the movement information is received, the congestion degree identification unit 715 refers to the location information included in the received movement information and the congestion degree information database 723 (particularly, the location information of the evacuation exit), and the mobile terminal 6 Identify the evacuation exit closest to your current location (Sb4). When the evacuation port is specified, the degree of congestion in the vicinity of the evacuation port specified in step Sb4 is specified based on the movement speed included in the received movement information (Sb5). Specifically, when the moving speed (speed) is 0 km or more and less than 1 km, it is judged as "high", and when it is 1 km or more and less than 3 km, it is judged as "medium" and 3 km or more. In that case, it is determined that the congestion degree is "low". When the degree of congestion is specified, the specified degree of congestion is stored in the congestion degree information database 723 in association with the evacuation port specified in step Sb4 (Sb6). When the storage in the database is completed, the movement information acquisition unit 714 determines whether or not the movement information has been acquired for all the evacuation guidance staffs registered in the member information database 722 (Sb7), and all the evacuation guidance staffs. If the movement information has not been acquired (NO in Sb7), the process returns to step Sb1, and if the movement information has been acquired for all the evacuation guides (YES in Sb7), this congestion degree identification operation is performed. finish.
The above is the description of the congestion degree specifying operation.

1-2-3. Fire broadcasting operation FIG. 11 is a sequence diagram showing an example of a fire broadcasting operation. This operation is executed when the fire determination unit 512 of the fire receiver 5 determines the occurrence of a fire.

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 confirmation signal notifying the confirmation of the fire to the emergency broadcasting equipment 9 (Sc1). When the transmitted fire confirmation signal is received by the abnormality information receiving unit 911 of the emergency broadcasting equipment 9, the message specifying unit 912 of the emergency broadcasting equipment 9 identifies the fire broadcasting message with reference to the message database 921. (Sc2). When the fire broadcast message is identified, the speaker identification unit 913 of the emergency broadcasting equipment 9 identifies all the speakers 8 with reference to the speaker information database 923 (Sc3). When the speaker 8 is specified, the broadcast control unit 914 of the emergency broadcasting equipment 9 repeatedly outputs the voice message specified in step Sc2 from the speaker 8 specified in step Sc3 until the fire is extinguished (Sc4 and Sc5). ).
The above is the explanation of the fire broadcasting operation.

In a preferred embodiment, the broadcast control unit 914 first outputs a fire broadcast message only from the speakers 8 installed on the fire floor and the floor directly above, and after a predetermined time has elapsed, the speakers installed on the other floors. The fire broadcast message may be output from 8.

1-2-4. Evacuation support broadcasting operation FIG. 12 is a flow diagram showing an example of an evacuation support broadcasting operation. This operation is executed by the emergency broadcasting equipment 9 at a predetermined cycle after the execution of the fire broadcasting operation.

The broadcast target area identification unit 915 of the emergency broadcasting equipment 9 refers to the congestion degree information database 922 and identifies the floor near the evacuation port where the congestion degree is “medium” or higher as the broadcast target floor of the evacuation support message. (Sd1). For example, assuming that the data illustrated in FIG. 6 is referenced, at least the "first floor" and the "second floor" are specified. When the broadcast target floor is specified, the speaker identification unit 913 refers to the speaker information database 923 and identifies the speaker 8 installed on the broadcast target floor specified in step Sd1 (Sd2). When the speaker 8 is specified, the message identification unit 912 identifies the evacuation support message by referring to the message database 921 (Sd3). When the evacuation support message is specified, the broadcast control unit 914 causes the speaker 8 specified in step Sd2 to output the voice message specified in step Sd3 by voice (Sd4). At that time, the evacuation support message is output by voice between the fire broadcast messages.
The above is the explanation of the evacuation support broadcasting operation.

According to the disaster prevention system 1 described above, the evacuation support message is broadcast on the floor where the evacuation route is congested, so that the residents can be urged to evacuate calmly.

2. Modification Example The above embodiment may be modified as follows. The following two or more modifications 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, in the above embodiment, the moving speed may be calculated on the support server 7 side based on the position information provided by the mobile terminal 6 without calculating the moving speed on the mobile terminal 6 side. 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 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 congestion degree information database 723 included in the support server 7 corresponds to each section formed by dividing the floor of the building into a plurality of sections instead of the floor of the building, and the evacuation port in the section and the location of the evacuation port. And, the degree of congestion near the evacuation port may be stored. This also applies to the congestion degree information receiving unit 916 of the emergency broadcasting equipment 9, which has the same data structure as the congestion degree information database 723. Further, the speaker information database 923 provided in the emergency broadcasting equipment 9 may store the installation section of the speaker 8 in association with the address of the speaker instead of the installation floor of the speaker 8. In that case, the broadcast target area identification unit 915 of the emergency broadcasting equipment 9 specifies the broadcast target area instead of the broadcast target floor, and the speaker identification unit 913 is installed in the broadcast target area instead of the broadcast target floor. The speaker 8 may be specified. That is, the evacuation support message may be broadcast not on a floor basis but on a block basis.

2-3. Modification 3
The abnormal information receiving unit 711 of the support server 7 and the abnormal information receiving unit 911 of the emergency broadcasting equipment 9 replace or add to the fire confirmation signal as information that requires evacuation, such as an earthquake, tsunami, flood, etc. Information indicating the occurrence or possibility of other abnormalities such as terrorism may be received.

2-4. Modification 4
The movement information acquisition unit 714 of the support server 7 is not limited to the mobile terminal 6 carried by a member of the evacuation guidance staff, and may also acquire the movement information of the mobile terminal 6 carried by a member of another staff. In addition, the movement information of the mobile terminal 6 carried by a resident who is not selected as a member (including a member candidate and a person who is not) may be acquired.

2-5. Modification 5
When the movement information acquisition unit 714 of the support server 7 acquires the movement information of not only the evacuation guidance staff but also the entire resident, the congestion degree identification unit 715 of the support server 7 adds the acquired movement information to each of the acquired movement information. The degree of congestion of the evacuation route may be specified based on the included position. More specifically, the degree of congestion of the evacuation route may be specified based on the number of people in a predetermined area near the evacuation port (for example, an area having a radius of 10 m from the evacuation port). At that time, it is determined that the higher the number of people in the predetermined area near the evacuation port, the higher the degree of congestion.

In specifying the degree of congestion based on the number of people in a predetermined area near the evacuation port instead of the moving speed, the congestion degree specifying unit 715 is located near each evacuation port regardless of the movement information acquired from the mobile terminal 6. The number of people in a predetermined area may be counted by analyzing the image taken by the camera installed in the. Here, the vicinity of the evacuation port is, as described above, the evacuation port, the passage leading to the evacuation port (including the annex), and the evacuation stairs near the evacuation port. Alternatively, the congestion degree specifying unit 715 may count the number of people in a predetermined area by analyzing the voice collected by the microphones installed near each evacuation port.

2-6. Modification 6
In the above evacuation support broadcasting operation, the message identification unit 912 of the emergency broadcasting equipment 9 sends the evacuation support message to the area (specifically, the floor) specified by the broadcast target area identification unit 915 to the degree of congestion. The information database 922 may be referred to (in other words, the area is specified based on the degree of congestion specified by the degree of congestion specifying unit 715 of the support server 7). As an example, an evacuation support message corresponding to the degree of congestion of the evacuation route on the floor specified by the broadcast target area specifying unit 915 may be specified. Specifically, as an evacuation support message broadcast on the floor with a high congestion level, the message "Please wait" is specified, and as an evacuation support message broadcast on the floor with a congestion level of "medium". May identify the message "Please calm down and evacuate." In addition, when the evacuation support message is broadcast not only to the floors with a congestion level of "medium" or higher but also to the floors with a congestion level of "low", the evacuation support message broadcast to the floor with a congestion level of "low" is You may want to identify the message "Please evacuate."

As another example, the message identification unit 912 may specify an evacuation support message that encourages the use of the evacuation route of the less crowded floor among the evacuation routes on the floor specified by the broadcast target area identification unit 915. Good. Specifically, if evacuation port A is more crowded than evacuation port B among the evacuation routes on the floor specified by the broadcast target area identification unit 915, "Please evacuate from evacuation port B. The message "." Or "Please do not evacuate from evacuation port A." may be specified.

2-7. Modification 7
The support server 7 may provide the functions of the message identification unit 912 and the broadcast target area identification unit 915 of the emergency broadcasting equipment 9. That is, the support server 7 specifies the evacuation support message and the floor on which the message is broadcast, and the emergency broadcasting equipment 9 specifies the evacuation support message specified by the support server 7 on the floor specified by the server. The sound may be output from the speaker 8 installed in the server 8.

1 ... Disaster prevention system, 2 ... Self-fire alarm equipment, 3 ... Disaster prevention support system, 4 ... Fire detector, 5 ... Fire receiver, 6 ... Mobile terminal, 7 ... Support server, 8 ... Speaker, 9 ... Emergency broadcasting equipment 10, 10 ... communication line, 51 ... control unit, 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, 91 ... Control unit, 92 ... Storage unit, 93 ... 1 communication unit, 94 ... second communication unit, 511 ... fire detection signal reception unit, 512 ... fire judgment unit, 513 ... fire information transmission unit, 521 ... detector database, 611 ... information reception unit, 612 ... display control unit, 613 ... Movement speed calculation unit, 614 ... Information transmission unit, 711 ... Abnormal information reception unit, 712 ... Organization unit, 713 ... Role information transmission unit, 714 ... Movement information acquisition unit, 715 ... Congestion degree identification unit, 716 ... Congestion degree Information transmission unit, 721 ... member candidate information database, 722 ... member information database, 723 ... congestion degree information database, 911 ... abnormality information receiving unit, 912 ... message identification unit, 913 ... speaker identification unit, 914 ... broadcast control unit, 915 ... Broadcast target area identification unit, 916 ... Congestion degree information receiving unit, 921 ... Message database, 922 ... Congestion degree information database, 923 ... Speaker information database

Claims (2)

Anomalous information receiving unit that receives anomalous information indicating the occurrence of anomalies or the possibility of anomalies in a building,
When the abnormality information is received by the abnormality information receiving unit, the movement information acquisition unit that acquires the movement information indicating the position and the movement speed of the mobile terminal from each of the mobile terminals carried by the occupants of the building.
When the movement information is acquired by the movement information acquisition unit, the evacuation route closest to the position indicated by the acquired movement information is specified, and the degree of congestion is specified based on the movement speed indicated by the acquired movement information. As a result, the congestion degree identification unit that specifies the congestion degree for the evacuation routes set in each of the plurality of areas of the building, and the congestion degree identification unit.
Of the plurality of areas, a broadcast target area identification unit that specifies an area for broadcasting an evacuation support message based on the congestion degree specified by the congestion degree identification unit, and a broadcast target area identification unit.
A disaster prevention system including a broadcast control unit that outputs the evacuation support message by voice from a speaker installed in the area specified by the broadcast target area identification unit. The disaster prevention system according to claim 1, wherein the resident is a member of the evacuation guidance section of the self-defense fire brigade.

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