JP2006201961A - Disaster time guidance system and method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To construct a system in which since the specification of the occurrence place of any disaster, the spreading direction and spreading speed of the disaster and the location of a person in a building or the like are defined as significant elements in order to perform proper evacuation guidance when the disaster occurs, it is possible to accurately grasp those elements, and to attain evaluation guidance according to the change. <P>SOLUTION: This disaster time guidance system is configured by letting a person in a building carry an IC tag 3, and acquiring the location information of the IC tag 3, and arranging a plurality of sensors 21 in the building, and making an information processing means 7 specify a disaster region from an input from the sensor 21, and calculate the spreading direction or speed of the disaster from the input from the sensor 21, and calculate the proper evacuation path based on the specified disaster region, the calculated spreading direction or speed of the disaster and the location information of the IC tag 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a system, a calculation method, and a calculation program for calculating an evacuation route in a building at the time of a building disaster.

  Proper evacuation guidance in the event of a disaster is an important factor that increases human survival. In order to perform appropriate evacuation guidance, the identification of the location of the disaster, the direction of the disaster expansion, the speed of expansion, the position of the person in the building, etc. are important factors.

  By counting the number of people on the elevator, the number of people on each floor of the building with multiple floors is counted, and information on persons in the building such as disabled persons, key persons, and children is managed, and each building Detect disasters with sensors attached to the location, and identify a specific floor or evacuation zone consisting of multiple floors to which the people inside should evacuate based on the number of people on each floor counted Discloses a system for performing evacuation guidance using audio-visual instruction means for guiding and guiding to an elevator or a stair door (for example, Patent Document 1).

In addition, an IC tag, that is, an RFID (Radio Frequency Identification) is carried, a destination system is registered in the IC tag as destination information, and a display system incorporating an IC tag reader arranged in the building is included in the IC tag. Has been disclosed (for example, Patent Document 2).
JP 2004-203623 A (paragraphs 0017 to 0041) JP 2003-132435 A (paragraphs 0050 to 0066)

  However, there was no system to detect evacuation according to the changing situation of disasters and the movement of people on the same floor.

  In order to solve the above problem, the identification means having unique identification information is carried by the person in the building, the information processing means manages the position of the identification means, and further, the physical quantity detection means is arranged in various places in the building, Based on the information acquired from the physical quantity detection means, the disaster area, the disaster expansion direction and the expansion speed are calculated, and the evacuation route is further calculated based on the position of the identification means and the disaster area, the disaster expansion direction and the expansion speed. The disaster guidance system is characterized by comprising information processing means for calculating the information.

  According to the present invention, it is possible to quickly identify the location of a disaster, quickly calculate the expansion direction and speed of a disaster that changes with time, and manage the position of people in a building in time, An appropriate evacuation route can be presented quickly.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

(System configuration)
FIG. 1 is an example of a block diagram illustrating a configuration of a disaster guidance system according to the present embodiment. As shown in FIG. 1, the disaster guidance system 1 according to the present embodiment detects physical quantities such as temperature, pressure, and light, and their changes, converts them into appropriate signals, and passes through the communication unit 51 of the gate 5. Sensor node 2 to be sent to the server 7, IC tag 3 having an output unit for holding visitor information as personal identification information and outputting sound as required, and identification information of a person entering the building At the same time, the IC tag issuing device 4 that inputs the visitor information in which the personal information is stored, records the input visitor information in the storage unit 31 of the IC tag 3, and sends the visitor information to the server 7. By reading the visitor information of the IC tag 3, the movement of a person is detected, the signal from the sensor node 2 is received, the gate 5 sent to the server 7, the evacuation route calculated by the server 7 installed in the building Indicator that performs display according to Disaster guidance information such as the server 7 that calculates the evacuation route based on the information from the sensor node 2 and the information from the IC tag 3, the position of the sensor node 2 in the building, and the position of the gate 5 in the building The stored database 8 and a terminal 9 for inputting information to the database 8 are configured.

  The server 7 shown in FIG. 1 is implemented using a computer including a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk drive, an input / output interface, and the like. Then, each unit of the server 7 is realized by developing a program stored in the hard disk drive of the computer in the RAM and executing it by the CPU. The database 8 is implemented by allocating a predetermined area of the hard disk drive. In this embodiment, the database 8 is configured separately from the server 7, but may be integrated.

(Sensor node)
The sensor node 2 monitors physical values such as temperature, pressure, light, and the like, and sensor 21 that is an element that detects the amount of change thereof, the output value from the sensor 21, and whether or not the output value of the sensor 21 indicates an abnormality. In response to a request from the server 7, the storage unit 23 that holds information such as the sensor node ID, and the server 7, various calculations are performed on the output value of the sensor 21, and the output value from the sensor 21 or the sensor 21 A calculation unit 24 that associates the results of various calculations with respect to the output value of the sensor node ID and the sensor node ID, and a communication unit 25 that communicates with the gate 5.

(IC tag)
The IC tag 3 is a storage unit 31 that holds an IC tag ID, which is unique identification information for the IC tag, and information including personal visitor information in association with each other, and an output that outputs audio or the like as necessary. The communication unit 33 is configured to communicate with the unit 32, the gate 5, and the IC tag issuing device 4. The output unit 32 can be omitted.

(IC tag issuing device)
The IC tag issuing device 4 stores, for example, in the storage unit 31 of the IC tag 3 the input unit 42 for inputting personal information of the visitors to the building composed of a keyboard or the like, and the visitor information input by the input unit 42. And a communication unit 43 that communicates with the IC tag 3 and the server 7.

(Gate)
The gate 5 includes a monitoring unit 54 that monitors whether or not the IC tag 3 (that is, the person carrying the IC tag 3) has passed through the gate 5, and stores the IC tag 3 when the IC tag 3 passes through the gate 5. The IC tag information reading unit 52 that reads the visitor information stored in the unit 31 and associates it with the gate ID stored in the storage unit 53 of the gate 5, and the storage unit 53 that stores information such as the gate ID described above. , Sensor node 2, IC tag 3, and communication unit 51 that communicates with server 7.

(display)
The display 6 includes a display unit 62 that performs display according to the evacuation route calculated by the server 7 and a communication unit 61 that performs communication with the server 7.

(server)
The server 7 includes an input unit 72 that inputs information to the database 8, a calculation unit 73 that performs various calculations, comparison, collation, acquisition, and calculation, a determination unit 74 that performs various determinations and acquisitions, a gate 5, and an IC. The communication unit 71 includes a communication unit 71 that communicates with the tag issuing device 4 and the display 6.

(Database)
Stored is building information including the position of the sensor node 2 in the building, the position of the gate 5 in the building, etc., and disaster guidance information including the above-mentioned visitor information and area information described later.

(Terminal)
The database 8 includes an input unit 91 for inputting the various types of information described above.

Next, each information stored in the database 8 will be described.
FIG. 2 is a diagram illustrating an example of area information. As shown in FIG. 2, the area information includes an area ID that is a number assigned to each area, the number of people in the area that is the number of people currently existing in the area, and an area that has an exit, the exit is permitted. This includes the maximum number of people that can be, for example the amount of people that can pass the exit per unit time. Furthermore, the area information includes an IC tag ID of the IC tag 3 carried by a person in the area, a gate ID that is an ID of the gate 5 existing in the area, and an ID of the display 6 existing in the area. A certain display ID, a sensor node ID that is an ID of the sensor node 2 existing in the area, and an exit ID that is an ID of an exit existing in the area are included.

  FIG. 3 is a diagram showing an example of visitor information. As shown in FIG. 3, the visitor information stores information including the IC tag ID of the IC tag 3, the name of the visitor, age, presence / absence and type of obstacle, and the like.

  FIG. 4 is a diagram illustrating an example of building information. As shown in FIG. 4, the building information includes area and exit arrangement, area ID and exit ID, display 6 arrangement and display ID, gate 5 arrangement and gate ID, sensor node 2 arrangement and sensor node ID. It is comprised including. These are stored, for example, as CAD data, and the distance between each of these installed objects and the objects constituting the building 100 such as a passage is stored. The building information further includes the dimensions of the building storing the detailed passage length and room dimensions that are not included in the information. Here, the area is a unit obtained by dividing a building according to a predetermined rule. In addition, the exit includes exits other than doors such as windows. As the dimensions of the building, detailed dimensions relating to the arrangements and installations of the building are stored, for example, as CAD data.

FIG. 5 is a diagram showing an example of the arrangement of areas and outlets in one embodiment of the present invention. As shown in FIG. 5, the building 100 is partitioned by a room and a passage and has four outlets E1, E2, E3, and E4. Further, the exit E5 to the exit E11 are windows, respectively, and in this embodiment, the window is also regarded as one of the exits. Each exit is given an exit ID, and the arrangement of the exit in the building 100 and the exit ID are stored in the building information of the database 8 in association with each other, for example, as shown in FIG. .
A gate 5 is provided at each exit and entrance of the room. The gate 5 is paired with two antennas. The building 100 is divided into areas A1 to A25, which are areas based on the gate 5. These areas are assigned area IDs, and the arrangement of the areas in the building 100 and the area IDs are associated with each other, for example, in the form shown in FIG. 5, and stored in the building information as CAD data. Yes. The CAD data also stores information such as dimensions (not shown). A broken line in FIG. 5 indicates an area boundary line. In FIGS. 5 to 8 and FIGS. 17 to 22, a broken line indicates an area boundary line. The way of dividing the area will be described later.
In the present embodiment, the building 100 is an example of a single-story building, but the present invention can be implemented by considering a staircase or an elevator as a kind of exit even in a multi-story building. Moreover, when it is set as a multi-story building, you may attach | subject area ID for every floor, and may attach | subject area ID through the building 100 whole.

  FIG. 6 is a diagram showing an example of the arrangement of the display device according to the embodiment of the present invention. As shown in FIG. 6, at least one display D11 to display D254 is provided for one area. Each display device 6 is provided with a display device ID. The arrangement of the display device 6 in the building 100 and the display device ID are associated with each other, for example, as shown in FIG. It is stored in the building information of the database 8. The CAD data also stores information such as dimensions (not shown). In the present embodiment, the display 6 is provided on the wall, but may be provided on the floor or ceiling.

  FIG. 7 is a diagram showing an example of gate arrangement according to an embodiment of the present invention. As shown in FIG. 7, a pair of gates G1 to G39 are provided at predetermined intervals in a pair of exits (including windows), a pair of entrances / exits of each room, and passages. Each gate 5 is assigned a gate ID, and the arrangement of the gate 5 in the building 100 and the gate ID are associated with each other, for example, as shown in FIG. 7, and stored in the building information as CAD data. Has been. The CAD data also stores information such as dimensions (not shown). In the present embodiment, the area is divided by the gate 5. That is, an area surrounded by the gate 5 and the wall is defined as an area in this embodiment. For example, the area A1 is an area surrounded by the walls with the gates G1, G2, and G3, and the area A2 is an area surrounded by the walls with the gates G3, G4, G5, and G12. For this reason, one gate 5 may belong to two areas. For example, the gate G3 belongs to two areas, area A1 and area A2.

  FIG. 8 is a diagram illustrating an example of arrangement of sensor nodes according to an embodiment of the present invention. As shown in FIG. 8, sensor node SN11 to sensor node SN258 are provided on the floor. Each sensor node 2 is assigned with a sensor node ID. The arrangement of the sensor node 2 in the building 100 and the sensor node ID are associated with each other in the form as shown in FIG. 8, for example, as CAD data. Stored in building information. The CAD data also stores information such as dimensions (not shown). In this embodiment, the sensor node 2 is provided on the floor, but may be provided on a ceiling or a wall.

  In the embodiment shown in FIGS. 5 to 8, the gate 5 is provided at the entrance of the room, and in principle, one area is one room. For example, a plurality of gates 5 are arranged in one room. Thus, the area can be made smaller. As a result, it is possible to monitor the movement of a finer person. In the embodiments shown in FIGS. 17 to 22, which will be described later, the arrangement and reference numerals shown in FIGS. 5 to 8 are used for the arrangement of areas and exits, and the arrangement of the indicator 6, the gate 5, and the sensor node 2. I will explain.

With reference to FIG. 9 with reference to FIG. 1, the processing flow of the disaster guidance system of the present invention will be described.
FIG. 9 is a flow showing the flow of processing of the disaster guidance system of the present invention.

First, various types of information are input to the database 8 and the storage unit 31 of the IC tag 3 (S101). Details will be described later with reference to FIG.
Next, the monitoring unit 54 of the gate 5 determines whether or not the IC tag 3 (that is, the person carrying the IC tag 3) has passed through the gate 5 (S102). Details of the determination will be described later. If there is no IC tag 3 that has passed through the gate 5 (S102 → No), the process proceeds to step S104. When the IC tag 3 passes through the gate 5 (S102 → Yes), the process proceeds to step S103.
In step S103, the movement of a person is detected. Details will be described later with reference to FIG.

  Next, the monitoring unit 22 of the sensor node 2 constantly monitors the output of the sensor 21 to monitor whether there is a sensor 21 outputting an abnormal value (S104). Here, that the output value of the sensor 21 indicates an abnormal value means that a certain threshold value is set in advance and the output value of the sensor 21 indicates an output value larger than the threshold value or an output value smaller than the threshold value. Which of these is to be selected depends on the type of sensor 21 in the sensor node 2. In the present embodiment, it is assumed that the disaster is a fire, a temperature sensor is used as the sensor 21, and an abnormal value indicates that the output value of the temperature sensor is larger than a preset threshold value. . If the output values of all sensors (temperature sensors) in the building are equal to or less than the threshold value (S104 → No), the process returns to step S102. When the sensor 21 indicating an output value larger than the threshold is present (S104 → Yes), the calculation unit 73 of the server 7 acquires the building information from the database 8, and acquires the area of the acquired building information, the arrangement of the exit, the area ID, and the like. The area IDs of all areas and the gate IDs of all gates 5 are stored as evacuation route candidates from the exit ID and the arrangement and gate ID of the gates 5 (S105). Next, the monitoring unit 22 of the sensor node 2 determines that a fire has occurred, and the output values of the sensors 21 of all the sensor nodes 2 in the building (hereinafter referred to as each sensor 21) to the calculation unit 73 of the server 7. The sensor node ID is collected via the communication unit 25 of the sensor node 2, the communication unit 51 of the gate 5, and the communication unit 71 of the server 7. Next, the process proceeds to step S106.

In step S106, the calculation unit 73 of the server 7 acquires the output value (α) and sensor node ID of each sensor 21, and acquires the acquired output value (α) and sensor node ID of each sensor 21 in step S105. Based on the building information, the area where the fire occurred is identified. Details will be described later with reference to FIG.
Then, in step S107, after a first predetermined time from step S106, specifically, step S406 in FIG. 12 to be described later, the calculation unit 73 of the server 7 receives the output value (β) of the sensor 21 from each sensor node 2. The sensor node ID is acquired, and the evacuation route is determined based on the acquired output value (β) of each sensor 21, the sensor node ID, and the building information acquired in step S105. Details will be described later with reference to FIG.

  Next, after the second predetermined time from step S106 or step S116, the calculation unit 24 of each sensor node 2 sets the current output value and sensor node ID of each sensor 21 to the communication unit 25 of the sensor node 2, the gate. 5, and the communication unit 71 of the server 7, the calculation unit 73 of the server 7 and the determination unit 74 of the server 7. The determination unit 74 of the server 7 compares the output value (α) of each sensor 21 obtained in step S106 before the second predetermined time with the current output value of each sensor 21, or the server 7 in step S604 described later. The calculation unit 73 of the server 7 sends the output value of each sensor 21 before one loop stored by the calculation unit 73 to the determination unit 74 of the server 7, and the determination unit 74 of the server 7 sends the output value of each sensor 21 before one loop. The output value and the current output value of each sensor 21 are compared, and it is determined whether or not there is a sensor node 2 having a sensor 21 that newly shows an abnormal value (S108). When there is no sensor node 2 having the sensor 21 that newly shows an abnormal value (S108 → No), the process proceeds to step S112. When there is a sensor node 2 having a sensor 21 that newly shows an abnormal value (S108 → Yes), the determination unit 74 of the server 7 detects the sensor node 2 of the sensor node 2 that has the sensor 21 that has newly shown an abnormal value. The ID is specified and sent to the computing unit 73 of the server 7.

Next, the fire expansion direction and the expansion speed are calculated (S109). Details will be described later with reference to FIG.
Next, the determination unit 74 of the server 7 acquires the building information acquired by the calculation unit 73 of the server 7 in step S105, the fire expansion direction and the expansion speed calculated in step S109, and the fire arrives within a predetermined time. It is determined whether or not there is an area that is likely to occur or the gate 5 exists (S110). Specifically, it is determined whether or not there is an area where the fire reaches within a predetermined time, or the gate 5 by using the building size of the building information, the direction and speed of expansion of the fire. If there is no area where the fire may reach within the predetermined time or the gate 5 does not exist, the process proceeds to step S112 (S110 → No). If there is an area where the fire may reach within a predetermined time or the gate 5 (S110 → Yes), the determination unit 74 of the server 7 specifies the area ID of the area or the gate ID of the gate 5. And sent to the calculation unit 73 of the server 7.
Next, the evacuation route is changed (S111). Details will be described later with reference to FIG.
And the display of the evacuation route by the indicator 6 is performed (S112). Details will be described later.
Next, the monitoring unit 54 of the gate 5 determines whether or not the IC tag 3 has passed through the gate 5 (S113). If there is no IC tag 3 that has passed through the gate 5 (S113 → No), the process proceeds to step S115. When the IC tag 3 passes through the gate 5 (S113 → Yes), the process proceeds to step S114. The process of step S113 is the same as the process of step S102.
In step S114, movement of a person is detected. Details will be described later with reference to FIG.

Subsequently, the variance of the people in the building is calculated (S115). Details will be described later with reference to FIG.
Next, the determination unit 74 of the server 7 determines whether or not a person remains in the building based on the result of the series of processes by referring to the number of persons in the area information of each area (S116). . As a result, if a person remains in the building (S116 → Yes), the process returns to step S108. If there is no person remaining in the building, that is, if the number of people in the area in all area information is 0 (S116 → No), the evacuation has been completed and the process is terminated.

(Input of various information)
Next, the process of inputting various information in step S101 of FIG. 9 will be described in detail with reference to FIG.
FIG. 10 is a flowchart showing a flow of inputting various information.
First, building information and area information other than the IC tag ID are input to the database 8 by the input units 72 and 91 configured by the server 7 or the keyboard of the terminal 9 (S201).

  Next, when there is a person (entrant) who wants to enter the building, the information of the visitor, that is, the visitor information is input via a keyboard or the like via the input unit 42 of the IC tag issuing device 4 at the entrance of the building. Input (S202). Next, the input unit 42 of the IC tag issuing device 4 sends the visitor information to the recording unit 41 of the IC tag issuing device 4. Then, the recording unit 41 of the IC tag issuing device 4 records the visitor information in the storage unit 31 of the IC tag 3 via the communication unit 43 of the IC tag issuing device 4 and the communication unit 33 of the IC tag 3 (S203). ). The IC tag 3 in which the visitor information is recorded is issued by the issuing unit of the IC tag issuing device 4 (not shown) (S204). In this embodiment, the IC tag ID is stored in advance in the storage unit 31 of the IC tag 3. However, every time the recording unit 41 of the IC tag issuing device 4 records the visitor information on the IC tag 3. The issuing unit of the IC tag issuing device 4 (not shown) issues an IC tag ID, and the IC tag is stored in the storage unit 31 of the IC tag 3 via the communication unit 43 of the IC tag issuing device 4 and the communication unit 33 of the IC tag 3. An ID may be recorded. A visitor carries the issued IC tag 3 and enters the building. Next, the input unit 42 of the IC tag issuing device 4 sends the visitor information to the database 8 via the communication unit 43 of the IC tag issuing device 4 and the communication unit 71 of the server 7. The sent visitor information is stored in the visitor information of the database 8 (S205). When the visitor enters the building, the movement of the person described later is detected (S103), and the IC tag ID is stored in the area information of the area that the visitor first visits.

(Detection of human movement)
Next, referring to FIGS. 1 and 9 as appropriate, referring to FIG. 11, a process for determining whether or not the IC tag 3 has passed through the gate 5 in step S102 in FIG. A process for detecting the movement of a person will be described in detail.
First, the process of step S102 will be described. The monitoring unit 54 of the gate 5 transmits radio waves from an antenna (not shown). This radio wave is adjusted to directivity so that the IC tag 3 can receive only when it passes between the gates 5. When the IC tag 3 passes through the gate 5, a radio wave from the gate 5 is received by an antenna (not shown) of the IC tag 3, and the IC tag 3 is activated by the radio wave energy. The activated IC tag 3 sends predetermined data stored in the storage unit 31 of the IC tag 3 from the antenna (not shown) to the gate 5 (in this embodiment, the visitor information), and the communication unit of the IC tag 3. 33. By sending a reply to the monitoring unit 54 of the gate 5 via the communication unit 51 of the gate 5, the monitoring unit 54 of the gate 5 determines the passage of the person carrying the IC tag 3.

FIG. 11 is a flowchart showing the flow of processing for detecting the movement of a person in steps S103 and S114 in FIG.
When the gate 5 determines that the IC tag 3 has passed, the IC tag information reading unit 52 of the gate 5 through which the IC tag 3 has passed is returned to the visitor information returned by the IC tag 3 from the monitoring unit 54 of the gate 5. Is acquired (S301). Next, the IC tag information reading unit 52 of the gate 5 acquires the gate ID from the storage unit 53 of the gate 5 through which the IC tag 3 has passed, and acquires the acquired visitor information and the gate ID as a pair of data. The data is sent to the calculation unit 73 of the server 7 via the communication unit 51 and the communication unit 71 of the server 7 (S302).

  Next, the computing unit 73 of the server 7 searches the area information in the database 8 using the gate ID sent from the IC tag information reading unit 52 of the gate 5 as a key (S303), and retrieves the corresponding area information from the database 8. Obtain (S304). Next, the calculation unit 73 of the server 7 acquires the IC tag ID from the visitor information acquired from the IC tag 3 sent from the IC tag reading unit 52 of the gate 5 in step S302 (S305). Further, the calculation unit 73 of the server 7 searches the area information acquired in step S304 to determine which area information includes the IC tag ID of the IC tag 3 that has passed through the gate 5 (S306). Next, the calculation unit 73 of the server 7 updates the area information (S307). The update of the area information means that the number of persons in the area stored in the area information of the area where the calculation unit 73 of the server 7 has passed through the gate 5 (that is, the person who has moved the area) has passed through the gate 5. Subtract the number of people moved from, delete the IC tag ID stored in the area information of the area before passing through the gate 5, add the number of people in the area stored in the area information of the destination, the number of people moved, The IC tag ID of the IC tag 3 carried by the moved person is added to the area information of the movement destination. This makes it possible to monitor the movement of people between the areas. Next, the computing unit 73 of the server 7 stores the new area information thus obtained in the database 8 (S308).

An embodiment specifically showing the processing from step S102 in FIG. 9 to step S308 in FIG. 11 with reference to FIG. 17 and FIG. 18 while referring to FIG. 1, FIG. 9, and FIG. 11 as appropriate.
FIG. 17 is a diagram illustrating an embodiment of the present invention, and is a diagram schematically illustrating a person in the building 100.
FIG. 18 is a diagram showing an embodiment of the present invention, and is a schematic diagram showing the state of a person in the building 100 as data. As shown in FIG. 18, in the computer, the position of each person in the building 100 is recognized as the number of persons in the area. Actually, the information in FIG. 18 is managed by the number of people in the area information in the database 8.
First, in building 100, there is one person in area A1, one person in area A2, two persons in area A3, one person in area A7, one person in area A11, three persons in area A12, and two persons in area A13. Suppose that there is one person in area A14, two in area A19, one in area A20, one in area A24, and one in area A25. Of these, it is assumed that the person H1 who carries the IC tag T1 (IC tag 3) in the area A12 moves from the area A12 to the area A11 through the gate G17.

  The monitoring unit 54 of the gate 5 transmits radio waves from an antenna (not shown). This radio wave is adjusted to directivity so that the IC tag 3 can receive only when it passes between the gates 5. When the IC tag T1 passes through the gate G17 (gate 5), a radio wave from the gate G17 is received by an antenna (not shown) of the IC tag T1, and the IC tag T1 is activated by the radio wave energy. The activated IC tag T1 sends predetermined data stored in the storage unit 31 of the IC tag T1 from the antenna (not shown) to the gate G17 (in this embodiment, the visitor information), and the communication unit of the IC tag T1. 33. By sending a reply to the monitoring unit 54 of the gate G17 via the communication unit 51 of the gate G17, the monitoring unit 54 of the gate G17 determines the passage of the person carrying the IC tag T1 (S102).

Thus, the monitoring unit 54 of the gate G17 detects the passage of the IC tag T1 (S102 → Yes).
When the passage of the IC tag T1 is determined by the gate 5, the IC tag information reading unit 52 of the gate G17 through which the IC tag T1 has passed is returned from the monitoring unit 54 of the gate G17 by the IC tag T1. Is acquired (S301). Next, the IC tag information reading unit 52 of the gate G17 acquires the gate ID from the storage unit 53 of the gate G17 through which the IC tag T1 has passed, and further acquires the gate ID as a pair of the visitor information and the gate ID. The communication unit 51 and the communication unit 71 of the server 7 are sent to the calculation unit 73 of the server 7 (S302).

Next, the computing unit 73 of the server 7 searches the area information in the database 8 using the gate ID sent from the IC tag information reading unit 52 of the gate G17 as a key (S303). Since the gate G17 belongs to the areas A11 and A12, the calculation unit 73 of the server 7 acquires the area information of the areas A11 and A12 from the database 8 (S304). Next, the computing unit 73 of the server 7 acquires the IC tag ID from the visitor information sent from the IC tag information reading unit 52 of the gate G1 in step S302 (S305). Further, the calculation unit 73 of the server 7 searches which area information includes the IC tag ID of the IC tag T1 from the area information of the area A11 and the area information of the area A12 acquired in step S304 ( S306). In this case, the IC tag ID of the IC tag T1 is included in the area information of the area A12 that is the area before the movement. Next, the calculation unit 73 of the server 7 updates the area information (S307). In the present embodiment, one person is subtracted from the number of people in the area information of the area A12, and the IC tag ID of the IC tag T1 is deleted from the IC tag ID of the area information of the area A12. Then, the number of people in the area information of the area A11 is added by one, and the IC tag ID of the IC tag T1 is added to the IC tag ID of the area information of the area A11. That is, as shown in FIG. 18, the number of people in the area A11 is 1 to 2 people, and the number of people in the area A12 is 3 to 2 people. Next, the computing unit 73 of the server 7 stores the new area information thus obtained in the database 8 (S308).

(Identification of fire occurrence area)
Next, with reference to FIGS. 1 and 9 as appropriate, the specific process of the fire occurrence area in step S106 in FIG. 9 will be described in detail with reference to FIG.
FIG. 12 is a flow showing the flow of specific processing in the fire occurrence area.
Upon receiving an instruction from the monitoring unit 22 of the sensor node 2 in step S104, the calculation unit 73 of the server 7 sends each calculation unit 24 of all sensor nodes 2 (hereinafter referred to as each sensor node 2) in the building to each of the calculation units 24. The communication unit 71 of the server 7, the communication unit 51 of the gate 5, and the sensor node 2 are configured to acquire and store the output value (α) of the sensor 21 and each sensor node ID, and send them to the calculation unit 73 of the server 7. An instruction is given via the communication unit 25. And the calculating part 24 of each sensor node 2 acquires sensor node ID from the output value ((alpha)) of the sensor 21 of each sensor node 2, and the memory | storage part 23 of the sensor node 2, and memorize | stores it (S401).

  Next, the calculation unit 24 of each sensor node 2 uses the acquired output value (α) of each sensor 21 and each sensor node ID as a pair of data, and the communication unit 25 of the sensor node 2 and the communication unit 51 of the gate 5. The data is sent to the computing unit 73 of the server 7 via the communication unit 71 of the server 7 (S402).

Next, the calculation unit 73 of the server 7 compares the acquired output values (α) of the sensors 21 and acquires the sensor node ID of the sensor node 2 to which the sensor 21 indicating the largest output value belongs. (S403).
Next, the arrangement of the sensor node 2 and the sensor node ID of the building information acquired by the calculation unit 73 of the server 7 in step S105 of FIG. 9 are compared with the sensor node ID indicating the largest output value acquired in step S403. (S404). The computing unit 73 of the server 7 identifies the vicinity of the sensor node 2 having the sensor node ID to which the sensor 21 indicating the largest output value acquired in step S403 belongs as the fire occurrence area, and sets the area ID of the fire occurrence area. Obtained from the database 8 (S405).
Next, the computing unit 73 of the server 7 deletes the area ID acquired in step S405 from the evacuation route candidates stored in step S105 of FIG. 9 (S406).

FIG. 19 is referred to as needed, and the processing from step S104 in FIG. 9 to step S406 in FIG. 12 is specifically shown with reference to FIG. 1, FIG. 5, FIG. 7, FIG. The form is shown.
FIG. 19 is a diagram showing an embodiment of the present invention.
In FIG. 19, the person in the building 100 is not shown. In the present embodiment, the sensor 21 included in the sensor node 2 is a temperature sensor. The maximum output value of the temperature sensor is 100, for example, and the threshold value at which the monitoring unit 22 of the sensor node 2 detects abnormality is 50, for example.

  Here, it is assumed that a fire has occurred at the position of the shaded area shown in FIG. The monitoring unit 22 of the sensor node SN33 (sensor node 2) detects an abnormality in the output value of the sensor 21 of the sensor node SN33 (S104 → Yes), and the calculation unit 73 of the server 7 acquires the building information from the database 8, All areas (area A1 to area A25 shown in FIG. 5) and all gates 5 (gate G1 to gate G39 shown in FIG. 7) are stored as evacuation route candidates from the acquired building information (S105). Next, the monitoring unit 22 of the sensor node SN33 determines that a fire has occurred, and outputs the sensor 21 of each sensor node 2 (from the previous sensor node SN11 to the sensor node SN258 shown in FIG. 8) to the calculation unit 73 of the server 7. An instruction is given via the communication unit 25 of the sensor node 2, the communication unit 51 of the gate 5, and the communication unit 71 of the server 7 so as to collect the values and sensor node IDs.

  Next, the computing unit 73 of the server 7 that has received the instruction acquires and stores the output value (α) and each sensor node ID of each sensor 21 from the computing unit 24 of each sensor node 2, and further stores the server. 7 is sent via the communication unit 71 of the server 7, the communication unit 51 of each gate 5, and the communication unit 25 of each sensor node 2. And the calculating part 24 of each sensor node 2 acquires sensor node ID from the output value ((alpha)) of the sensor 21 of each sensor node 2, and the memory | storage part 23 of the sensor node 2, and memorize | stores it (S401).

Next, the calculation unit 24 of each sensor node 2 uses the acquired output value (α) of each sensor 21 and each sensor node ID as a pair of data, and communication between the communication unit 25 and each gate 5 of each sensor node 2. The data is sent to the computing unit 73 of the server 7 via the unit 51 and the communication unit 71 of the server 7 (S402).
Next, the computing unit 73 of the server 7 compares the obtained output values (α) of the sensors 21 and obtains the sensor node ID of the sensor 21 showing the largest output value (S403). In the present embodiment, it is assumed that the output value from the sensor 21 of the sensor node SN33 is the largest.
Next, the sensor node 2 arrangement and sensor node ID of the building information acquired by the calculation unit 73 of the server 7 in step S105 in FIG. 9 and the sensor to which the sensor 21 indicating the largest output value acquired in step S403 belongs. The node ID is collated (S404). For example, if the arrangement of the sensor node 2 and the sensor node ID of the building information are entered in the database 8 in the form of FIG. 8, the sensor node SN33 is located at the position shown in FIG. The calculation unit 73 of the server 7 identifies the vicinity as the fire occurrence area, and acquires the area of the fire occurrence area, that is, the area ID of the area A3 from the database 8 (S405). Next, the computing unit 73 of the server 7 deletes the area ID of the area A3 from the evacuation route candidates stored in step S105 (S406).

(Decision of evacuation route)
Next, the evacuation route determination process in step S107 will be described in detail with reference to FIG. 13 while referring to FIGS. 1, 9, and 12 as appropriate.
FIG. 13 is a diagram illustrating a flow of processing for determining an evacuation route.
First, after the first predetermined time from the process of step S406 in FIG. 12, the calculation unit 73 of the server 7 sends the output value and sensor node ID of each sensor 21 to each calculation unit 24 in each calculation unit 24 of each sensor node 2. The communication unit 71 of the server 7, the communication unit 51 of the gate 5, and the communication unit 25 of the sensor node 2 are instructed to acquire and store from the storage unit 23 of the sensor node 2. Receiving the instruction, the calculation unit 24 of each sensor node 2 acquires and stores the output value (β) of each sensor 21 and the sensor node ID from the storage unit 23 of the sensor node 2 (S501). Then, the computing unit 24 of each sensor node 2 sends the obtained output value (β) of each sensor 21 and sensor node ID to the computing unit 73 of the server 7 as a pair of data, the communication unit 25 of the sensor node 2, and the gate 5. And the communication unit 71 of the server 7.

Next, the calculation unit 73 of the server 7 acquires the building information acquired and stored by the calculation unit 73 of the server 7 in step S105, the current output value (β) and the sensor node ID sent from each sensor node 2. (S502), the current fire area is specified, and the area ID of the fire area is acquired (S503). Specifically, it corresponds to the arrangement and sensor node ID of the sensor node 2 stored in the building information, each sensor node ID acquired by the calculation unit 73 of the server 7 in step S501, and the sensor node ID. The computing unit 73 of the server 7 collates the current output value (β).
Next, the area ID acquired in step S503 is deleted from the evacuation route candidates stored in step S105 (S504).

  Next, the calculation unit 73 of the server 7 sends the collation result of step S502 to the determination unit 74 of the server 7. Next, the determination unit 74 of the server 7 acquires building information from the database 8. And the determination part 74 of the server 7 determines whether the gate 5 exists within the predetermined distance from the present fire area based on the information regarding the dimension of the acquired building information (S505). When the gate 5 does not exist within a predetermined distance from the current fire area, the process proceeds to step S507 (S505 → No). When the gate 5 exists within a predetermined distance from the current fire area, the gate ID of the gate 5 within the predetermined distance from the current fire area is specified, and the specified gate ID is sent to the calculation unit 73 of the server 7 ( S505 → Yes). The computing unit 73 of the server 7 deletes the gate ID of the gate 5 existing within a predetermined distance from the current fire area from the evacuation route candidates stored in step S105 (S506).

  Next, the computing unit 73 of the server 7 determines an evacuation route based on the building information, the area remaining in the processing of steps S504 and S506, and the gate 5 (S507). The method for determining the evacuation route may be based on a simulation performed in advance, or an algorithm for determining the evacuation route may be determined in advance.

Next, an embodiment that specifically shows the processing from step S501 to step S507 with reference to FIG. 20 with reference to FIG. 1, FIG. 8, and FIG. 13 as appropriate.
FIG. 20 is a diagram showing an embodiment of the present invention.
In this figure, the person in the building 100 is not shown.
It is assumed that the fire has expanded from the state shown in FIG. 19 to the state shown in FIG. 20 after the first predetermined time from the process of step S406 in FIG. A hatched portion in area A3 in FIG. 20 indicates a fire area.
At this time, the calculation unit 73 of the server 7 sends the output value (β) and sensor node ID of each sensor 21 to the calculation unit 24 of each sensor node 2 (sensor node SN11 to sensor node SN258 shown in FIG. 8). Are obtained from the storage unit 23 of the sensor node 2 and stored via the communication unit 71 of the server 7, the communication unit 51 of the gate 5, and the communication unit 25 of the sensor node 2. Upon receiving the instruction, the calculation unit 24 of each sensor node 2 acquires and stores the output value (β) of each sensor 21 and the sensor node ID from the storage unit 23 of the sensor node 2 in the calculation unit 73 of the server 7 (S501). . Then, the calculation unit 24 of the sensor node 2 uses the acquired output value (β) of each sensor 21 and the sensor node ID as a pair of data, the communication unit 25 of the sensor node 2, the communication unit 51 of the gate 5, and the server. 7 is transmitted via the communication unit 71.

The computing unit 73 of the server 7 collates the building information acquired and stored by the computing unit 73 of the server 7 in step S105 with the current output value (β) sent from each sensor node 2 and the sensor node ID. (S502), the current fire area is specified, and the area ID of the fire area is acquired (S503). Specifically, it corresponds to the arrangement and sensor node ID of the sensor node 2 stored in the building information, each sensor node ID acquired by the calculation unit 73 of the server 7 in step S501, and the sensor node ID. The computing unit 73 of the server 7 collates the current output value (β). In the present embodiment, sensor nodes SN31, SN32, SN33, SN35, and SN36 indicate abnormal values. Thereby, the area A3 to which these sensor nodes 2 belong is specified as a fire area by the computing unit 73 of the server 7, and the area ID of the area A3 is acquired.
The area ID acquired in step S503 is deleted from the evacuation route candidates stored in step S105 (S504). In the present embodiment, the area ID of area A3 is deleted from the evacuation route candidates stored in step S105, but area A3 has already been deleted from the evacuation route candidates in the embodiment shown in FIG. So do nothing here.

  Next, the calculation unit 73 of the server 7 sends the collation result of step S502 to the determination unit 74 of the server 7. Then, the determination unit 74 of the server 7 acquires building information from the database 8. Next, the determination unit 74 of the server 7 determines and specifies whether or not the gate 5 exists within a predetermined distance from the current fire area based on the information on the dimensions of the acquired building information (S505). . In the present embodiment, it is assumed that the gates G5 and G6 are specified (S505 → Yes). Next, the determination unit 74 of the server 7 sends the gate ID of the identified gate 5 (in this embodiment, the gates G5 and G6) to the calculation unit 73 of the server 7 and exists within a predetermined distance from the current fire area. The gate ID of the gate 5 is deleted from the evacuation route candidates stored in step S105 (S506). In the present embodiment, since the gates G5 and G6 exist within a predetermined distance from the current fire area, they are deleted from the evacuation exit or evacuation route candidates.

  Next, the computing unit 73 of the server 7 determines an evacuation route based on the building information, the area remaining in step S506, and the gate 5 (S507). For example, a route as indicated by an arrow in FIG. The method for determining the evacuation route may be based on a simulation performed in advance, or an algorithm for determining the evacuation route may be determined in advance.

(Calculation of fire expansion direction and speed)
Next, with reference to FIG. 1, FIG. 9, and FIG. 12 as appropriate, the fire expansion direction and expansion speed calculation processing in step S109 of FIG. 9 will be described in detail with reference to FIG.
FIG. 14 is a flowchart showing the flow of processing for calculating the expansion direction and expansion speed of a fire.
First, the calculation unit 73 of the server 7 specifies the building information acquired by the calculation unit 73 of the server 7 in step S105 of FIG. 9 and the determination unit 74 of the server 7 in step S108 of FIG. The sensor node ID of the sensor node 2 to which the sensor 21 newly indicating an abnormal value sent to the unit 73 belongs is collated (S601). Specifically, the arrangement of the sensor node 2 in the building information, the information of the sensor node ID, and the sensor node ID specified in step S108 are collated.
Next, the calculation unit 73 of the server 7 collates the collation result of step S601 with the result of step S404 of FIG. 12 or step S601 of the previous loop (result of S604 described later) to determine the fire expansion direction. Calculate (S602), then calculate the fire expansion speed (S603), and send the calculated fire expansion direction and speed to the determination unit 74 of the server 7. Further, the computing unit 73 of the server 7 stores the current output value and sensor node ID of each sensor 21 and the result of step S601 for calculation of the fire expansion direction and expansion speed in the next loop (S604). . The expansion direction of the fire is to compare the position of the sensor node 2 to which the sensor 21 newly indicating an abnormal value belongs and the position of the sensor node 2 to which the sensor 21 that has indicated an abnormal value before the second predetermined time belongs. The enlargement speed can be calculated depending on how many sensors 21 of the sensor nodes 2 newly show an abnormal value in the enlargement direction within the second predetermined time. In addition, within a predetermined time, refer to the distance between the sensor nodes 2 based on the arrangement of the sensor node 2 of the building information and the sensor node ID information in which the distance between the sensor nodes 2 corresponding to the enlargement direction is stored. The fire expansion rate may be calculated as follows.

(Change of evacuation route)
Next, the process of changing the evacuation route will be described in detail with reference to FIG. 15 while referring to FIGS. 1 and 9 as appropriate.
FIG. 15 is a flowchart showing a flow of processing for changing an evacuation route.
First, the calculation unit 73 of the server 7 uses the area ID and the gate ID sent from the determination unit 74 of the server 7 in step S110 of FIG. The area ID and the gate ID are stored (S701).
Furthermore, the determination unit 74 of the server 7 acquires building information from the database 8 and determines whether there is an area stored in step S701 or an area that cannot be evacuated unless passing through the gate 5 (S702). Specifically, the determination unit 74 of the server 7 searches and specifies the route from the area specified in step S110 of FIG. 9 to the nearest exit from the area of the building information, the arrangement of the exit, the area ID, and the exit ID. . If there is no area identified in step S110 of FIG. 9 or an area that cannot be evacuated without passing through the gate 5, the process proceeds to step S705 (S702 → No). If there is an area that cannot be evacuated without passing through the area specified in step S110 and the gate 5, the area and the gate 5 are specified, and the process proceeds to step S703 (S702 → Yes).

  In step S703, the determination unit 74 of the server 7 acquires the area information of the area specified in step S702 from the database 8, and searches for the number of people in the area of the area information, so that the area specified in step S702 is included. It is determined whether there is a person (S703). If there is no person in the area specified in step S702 (S703 → No), the process proceeds to step S705. If there is a person in the area specified in step S702 (S703 → Yes), the process proceeds to step S704.

  In step S704, the determination unit 74 of the server 7 sends the result of step S704 to the calculation unit 73 of the server 7, and the calculation unit 73 of the server 7 performs processing for holding the evacuation route in the area specified in step S702. .

Next, the calculation unit 73 of the server 7 determines the areas and gates 5 stored in the calculation unit 73 of the server 7 in step S701 from the evacuation route candidates stored in the calculation unit 73 of the server 7 in step S105 of FIG. delete. However, if step S704 has been executed, a process for holding the evacuation route in the area processed to be held in step S704 is performed.
Next, the computing unit 73 of the server 7 changes the evacuation route based on the remaining area and the gate 5 (S705).

Next, referring to FIG. 21, the processing from step S108 in FIG. 9 to step S705 in FIG. 15 is performed with reference to FIG. 1, FIG. 8, FIG. 9, FIG. The embodiment shown concretely is shown.
FIG. 21 is a view showing an embodiment of the present invention, and is a view showing a state of the building 100 after a second predetermined time from FIG. It is assumed that the fire has not spread from FIG. 20 to FIG.
In this figure, the person in the building 100 is not shown.
After a predetermined time from the process of step S406 described above, the calculation unit 24 of each sensor node 2 (sensor node SN11 to sensor node SN258 shown in FIG. 8) uses the current output value of each sensor 21 and the sensor node ID as the sensor node. The communication unit 25 of 2, the communication unit 51 of the gate 5, and the communication unit 71 of the server 7 are sent to the calculation unit 73 of the server 7 and the determination unit 74 of the server 7. The determination unit 74 of the server 7 outputs the output value (α) of each sensor 21 before the second predetermined time acquired by the calculation unit 73 of the server 7 in step S401 of FIG. The values are compared, and it is determined whether or not there is a sensor node 2 having a sensor 21 that newly shows an abnormal value (S108), and the result is sent to the calculation unit 73 of the server 7. In the present embodiment, the determination unit 74 of the server 7 specifies that the sensor 21 of the sensor node 2 newly indicating an abnormal value is the sensor 21 of the sensor nodes SN31, SN32, SN35, and SN36 (S108 → Yes). ) And sent to the calculation unit 73 of the server 7.
Next, the calculation unit 73 of the server 7 uses the building information acquired by the calculation unit 73 of the server 7 in step S105 of FIG. 9 and the new abnormal value specified by the determination unit 74 of the server 7 in step S108 of FIG. Is compared with the sensor node ID of the sensor node 2 indicating (S601). Specifically, the arrangement of the sensor node 2 in the building information, the information of the sensor node ID, and the sensor node ID specified in step S108 are collated.

  Next, the computing unit 73 of the server 7 collates the collation result in step S601 with the result in step S404 in FIG. 12 and building information to calculate the fire expansion direction (S602), and then the fire expansion speed. Is calculated (S603), and the calculated fire expansion direction and speed are sent to the determination unit 74 of the server 7. In the present embodiment, the sensor nodes SN31, SN32, SN35, and SN36 newly show abnormal values, and in step S401 in FIG. 12, the sensor node SN33 shows an abnormal value. Therefore, the calculation unit 73 of the server 7 performs step S602. As a result of the process, it is specified that the fire has expanded in the direction from the sensor node SN33 to the sensor node SN35. Further, since one sensor node 2 in the enlargement direction newly shows an abnormal value within a predetermined time, the calculation unit 73 of the server 7 determines the distance (between the sensor node SN33 and the sensor node SN35). The fire expansion speed is calculated by referring to the arrangement of the sensor node 2 and the sensor node ID in the building information (S603). Further, the computing unit 73 of the server 7 stores the current output value and sensor node ID of each sensor 21 and the result of step S601 for calculation of the fire expansion direction and expansion speed in the next loop (S604). .

  Next, the determination unit 74 of the server 7 uses the building information acquired in step S105 of FIG. 9 and the enlargement direction and the enlargement speed sent from the calculation unit 73 of the server 7, and a fire arrives within a predetermined time. It is determined whether there is a possible area or the gate 5 (S110 in FIG. 9). In the present embodiment, areas A2, A9, gates G3, G4, G13, and G14 compare the expansion direction, expansion speed, and building information of the fire. As a result, the area where the fire may reach within a predetermined time, and the gate 5 is determined and specified by the determination unit 74 of the server 7 (S110 → Yes), and the area ID of these areas and the gate ID of the gate 5 are sent to the calculation unit 73 of the server 7.

  Next, the calculation unit 73 of the server 7 uses the area ID and the gate ID sent from the determination unit 74 of the server 7 in step S110 of FIG. 9 as the area where the fire may reach within a predetermined time, or the gate 5 Are stored as the area ID and the gate ID. In the present embodiment, the area IDs and gate IDs of the areas A2 and A9 and the gates G3, G4, G13, and G14 are calculated by the calculation unit 73 of the server 7 and the areas where the fire may reach within a predetermined time. The area ID and the gate ID are stored (S701).

Furthermore, the determination unit 74 of the server 7 obtains building information from the database 8 and determines whether there is an area stored in step S701 or an area that cannot be evacuated without passing through the gate 5 (S702).
In the present embodiment, when area A8 is deleted from area A9, gate G13, and gate G14 from the evacuation route, the area A8 is identified as an area that may not be accused (S702 → Yes).
Next, the determination unit 74 of the server 7 acquires the area information of the area specified in step S702 from the database 8, and searches for the number of people in the area of the area information, so that the person in the area specified in step S702 is obtained. It is determined whether or not there is (S703). In the present embodiment, it is assumed that a person (not shown) is in area A8 (S703 → Yes). Therefore, the determination unit 74 of the server 7 sends the result of step S704 to the calculation unit 73 of the server 7, and the calculation unit 73 of the server 7 performs a process of maintaining the evacuation route in the area specified in step S702 (S704). ). Specifically, the area A9 and the gates G13 and G14 are determined from the area where the fire may reach within a predetermined time in step S701, or the area ID and the gate ID stored in the calculation unit 73 of the server 7 as the gate 5. The area ID and gate ID are deleted. In this embodiment, the evacuation route in area A8, that is, the evacuation route in area A9, gate G13, and gate G14 is maintained. That is, the area A9 and the gates G13 and G14 are excluded from the deletion targets from the evacuation route stored in the calculation unit 73 of the server 7 in step S701.

Next, the calculation unit 73 of the server 7 deletes the area and the gate 5 specified in step S701 from the evacuation route candidates stored in the calculation unit 73 of the server 7 in step S105 of FIG. However, if step S704 has been executed, processing is performed so as to retain the area that has been retained in step S704 and the evacuation route of gate 5. In other words, in the present embodiment, the area A2 and the area A9 and the gates G3, G4, G13, and G14 that are to be deleted from the evacuation route stored in the calculation unit 73 of the server 7 in step S701 are identified in step S702. The evacuation route of the area A9 and the gates G13 and G14 is maintained, and the area A2 and the gates G3 and G4 are deleted from the evacuation route candidates.
Next, the computing unit 73 of the server 7 changes the evacuation route based on the remaining area and the gate 5 (S705). For example, the evacuation route indicated by the arrow in FIG. FIG. 20 shows that the arrow in area A2 has disappeared, the arrow on gate G3 from area A2 to area A1 has disappeared, the arrow in area A7 has peeled in the opposite direction, and area A14 to area It is mentioned that the arrow toward A15 has disappeared.

(Display of evacuation route by display)
Next, the display of the evacuation route by the indicator in step S112 in FIG. 9 will be described with reference to FIGS. 1, 6, 9, 13, and 15 as appropriate.
The calculation unit 73 of the server 7 displays each evacuation route 6 (display device shown in FIG. 6) that displays the evacuation route determined or changed in step S507 of FIG. 13 or step S705 of FIG. 15 for each display device ID. The display of display D254) is determined from D11, and the display unit 62 of each display 6 is instructed to perform the determined display via the communication unit 71 of the server 7 and the communication unit 61 of each display 6. The display unit 62 of each display device 6 displays the evacuation route according to the instruction from the calculation unit 73 of the server 7 (S112).

(Distribution of people in the building)
Next, with reference to FIGS. 1, 2, and 9 as appropriate, FIG. 16 will be used to describe in detail the flow of processing for distributing people in the building in step S <b> 115 of FIG. 9.
FIG. 16 is a flowchart showing the flow of processing for distributing people in a building.
First, the determination unit 74 of the server 7 acquires an area ID of an area having an exit from the database 8 (exit ID is stored in the area information of FIG. 2), and acquires area information using the area ID as a key. . The determination unit 74 of the server 7 compares the number of people in the area stored in the area information of the area having the acquired exit with the maximum allowable number of people, and the number of people in the area exceeds the maximum allowable number of people (number of people in the area> It is determined whether or not there is an area having an exit (maximum allowable number of people) (S801). When there is no area having an exit where the number of people in the current area exceeds the maximum allowable number of people, the process of distributing people in the building is terminated, and the process proceeds to step S116 (S801 → No). If there is an area where the number of people in the current area exceeds the maximum allowable number of people, the process proceeds to step S802 (S801 → Yes), and the area information of the area where the number of people in the area exceeds the maximum allowable number of people is stored in the server 7. To the calculation unit 73.

Next, the calculation unit 73 of the server 7 acquires area information of all areas currently serving as an evacuation route from the database 8.
Then, the calculation unit 73 of the server 7 does not exceed the maximum allowable number of people in the area information for the area having the exit among the areas that are currently evacuated routes, and the area and the exit of the building information The area where the distance from the area identified as the fire area is greater than or equal to a predetermined value based on the layout, area ID and exit ID, and has an exit within the predetermined distance from the area identified in step S801 is identified and identified (S802).

  Next, the calculation unit 73 of the server 7 acquires the IC tag ID of the IC tag 3 carried by a person in the area where the number of people in the area exceeds the maximum allowable number of people from the area information, and the IC tag ID. Is used as a key, and the visitor information of the person in the area where the number of persons in the area exceeds the maximum allowable number is acquired from the database 8. Next, the computing unit 73 of the server 7 moves to an area having an exit where the number of people in the area does not exceed the maximum allowable number of people based on the number of people in the area information of the area having each exit and the maximum allowable number of people. The number of people to perform is calculated (S803). Next, based on the IC tag ID of the area information of the area where the number of people in the area information of the area information acquired in step S801 exceeds the maximum allowable number, the computing unit 73 of the server 7 Information is acquired from the database 8, and a person who moves to an area having an exit that does not exceed the maximum allowable number of persons in the area is selected, and an area to which these persons move is determined (S804). As a selection criterion, for example, a young healthy person who is relatively healthy and can act quickly, or these persons may guide a disabled person or an elderly person. These pieces of information are stored in the database 8 and the visitor information of the IC tag 3. In addition, the number of people actually moving at this time may be the number of people exceeding the maximum allowable number of people in the area, or may be determined in advance by an algorithm or a simulation.

  Next, the calculation unit 73 of the server 7 acquires the IC tag ID of the IC tag 3 carried by the selected person from the visitor information. Then, an instruction to perform individual guidance for moving to the area determined in step S804 to the output unit 32 of the IC tag 3 having the acquired IC tag ID, for example, by voice, and data of the guidance route are provided. Instructed via the communication unit 71 of the server 7, the communication unit 51 of the gate 5, and the communication unit 33 of the IC tag 3. The output unit 32 of the IC tag 3 performs evacuation guidance to another route, for example, by voice according to the instruction of the calculation unit 73 of the server 7 and according to the guidance route data sent from the calculation unit 73 of the server 7 ( S805). Here, the guidance route data includes a destination area ID and the like.

Next, an embodiment specifically showing the processing from step S801 to step S805 with reference to FIG. 22 with reference to FIG. 1 and FIG. 16 as appropriate.
FIG. 22 is a diagram showing an embodiment of the present invention.
FIG. 22 is a diagram showing the distribution of people at the time shown in FIG. As shown in FIG. 22, it is assumed that there are 20 people in area A11 and 15 people in area A20. In addition, there are people not shown in the area A8. The maximum allowable number of people at the area exit E2 (area A11) is 10, the maximum allowable number of people at the exit E3 (area A20) is 8, the maximum allowable number of people at the exit E7 (area A18) is 5, and the exit E8 (area A24). ) Is 8 people, and the maximum allowable number of people at exit E9 (area A25) is 10.
The determination unit 74 of the server 7 acquires area information of areas (areas A1, A2, A3, A4, A10, A11, A17, A18, A20, A24, A25) having exits from the database 8. The determination unit 74 of the server 7 compares the number of people in the area stored in the area information of the area having the acquired exit with the maximum allowable number of people, and the area having an exit in which the number of people in the area exceeds the maximum allowable number of people As a result, it is determined that the area A11 and the area A20 exceed the maximum allowable number (S801 → Yes). The determination unit 74 of the server 7 sends the area information of the areas A11 and A20 to the calculation unit 73 of the server 7.
Next, the computing unit 73 of the server 7 acquires area information of all areas (all areas other than the areas A2 and A3) that are currently on the evacuation route from the database 8.

  Then, the calculation unit 73 of the server 7 does not exceed the maximum allowable number of people in the area information for the area having the exit among the areas that are currently evacuated routes, and the area and the exit of the building information The area where the distance from the area identified as the fire area is greater than or equal to a predetermined value based on the layout, area ID and exit ID, and has an exit within the predetermined distance from the area identified in step S801 is identified and identified (S802). In the present embodiment, the computing unit 73 of the server 7 identifies the areas where the area A18 (exit E7), the area A24 (exit E8), and the area A25 (exit E9) satisfy the above-described conditions.

  Next, the computing unit 73 of the server 7 determines that the IC tag ID of the IC tag 3 carried by an area where the number of persons in the area exceeds the maximum allowable number of persons, that is, in this embodiment, persons in the areas A11 and A20. Is obtained from the area information, and the visitor information of the person in the area where the number of people in the area exceeds the maximum allowable number is obtained from the database 8 using the IC tag ID as a key. Next, the computing unit 73 of the server 7 moves to an area having an exit where the number of people in the area does not exceed the maximum allowable number of people based on the number of people in the area information of the area having each exit and the maximum allowable number of people. The number of people to perform is calculated (S803). Here, it is assumed that the number of people exceeding the maximum allowable number of areas moves. That is, there are 10 people from area A11 and 7 people from area A20. Of the areas identified in step S802, the distance between the area A11 and the area A20 is within a predetermined value, and the maximum allowable number of people at the exit E7 (area A18), the exit E8 (area A24), and the exit E9 (area A25). For example, it is assumed that the calculation unit 73 of the server 7 calculates that five people move from the area A11 to the area A18, five people from the area A11 to the area A24, and seven people from the area A20 to the area A25. These calculation methods may be determined according to a preset algorithm or according to a simulation performed in advance. In the present embodiment, calculation is performed by an algorithm such as shortening the average distance traveled by a moving person as much as possible. Note that the algorithm for calculating the number of people moving is not limited to this algorithm.

  Next, the calculation unit 73 of the server 7 acquires the visitor information of people in those areas from the database 8 based on the IC tag IDs of the area information of the areas A11 and A20 acquired in step S801. A person who moves to an area having an exit that does not exceed the maximum allowable number of inner persons is selected, and an area to which these persons move is determined (S804). The criteria for moving people are to select healthy young people based on the visitor information of people in areas A11 and A20. Next, the calculation unit 73 of the server 7 acquires the IC tag ID of the IC tag 3 carried by the selected person from the visitor information. Then, an instruction for performing individual guidance by voice so as to move the area determined in step S804 to the output unit 32 of the IC tag 3 having the acquired IC tag ID and data of the guidance route are sent to the server 7. And the communication unit 51 of the gate 5 and the communication unit 33 of the IC tag 3. The output unit 32 of the IC tag 3 carried by the person selected in step S804 follows the instruction of the calculation unit 73 of the server 7, and the guidance route sent from the calculation unit 73 of the server 7, that is, the area A18, Evacuation guidance is performed, for example, by voice so as to go to each of the areas A24 and A25 (S805).

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately modified and implemented.
In the present embodiment, the temperature sensor is used as the sensor 21 constituting the sensor node 2 as the disaster guidance system 1 at the time of a fire. However, the present invention is not limited to this, and a combination of a smoke sensor and a temperature sensor or a temperature sensor is used. It is also possible to configure the sensor node 2 using a smoke sensor without using it, and in this case as well, it is possible to implement by performing the same processing as in this embodiment.

  In the present embodiment, the sensor 21 included in the sensor node 2 is a temperature sensor. However, the present invention is not limited to this, and a temperature sensor, a smoke sensor, a gas sensor, a humidity sensor, an oxygen sensor, various chemical sensors, and a radioactivity sensor are not limited thereto. It is possible to combine one or a plurality of strain sensors, optical sensors, pressure sensors, vibration sensors, and the like. By setting it as such a structure, the disaster guidance system 1 which can respond not only to a fire but various disasters, such as a radioactive leak and an earthquake, can be comprised. In this case, the calculation unit 24 of the sensor node 2 may have a function of selecting the output of the sensor 21. That is, only the output from the specific sensor 21 may be selected and sent to the gate 5 according to the type of disaster. With this configuration, an appropriate output of the sensor 21 can be selected and sent to the server 7 according to the type of disaster that has occurred, and an efficient disaster guidance system 1 can be configured. . When the sensor node 2 includes a plurality of sensors 21, the disaster type corresponding to the output value of the sensor 21 is stored in the database 8, and the sensor 21 acquired by the calculation unit 73 of the server 7 is stored. The calculation unit 73 of the server 7 can also acquire the type of disaster from the database 8 for the output value. This process is performed, for example, between steps S402 and S403 in FIG.

  Further, when the sensor node 2 is configured by a plurality of sensors 21 and the calculation unit 73 of the server 7 has to process the output values of the plurality of sensors 21, the processing from step S104 to step S116 in FIG. The processing may be performed in series for each output of the sensor 21, or a plurality of calculation units 73 of the server 7 are prepared, and the processing from step S104 to step S116 in FIG. You may do it.

  It is also possible to register information such as criminals in the database 8. In this case, the input unit 42 of the IC tag issuing device 4 has a determination function, and the input unit 42 of the IC tag issuing device 4 is connected to the communication unit 71 of the server 7 between step S202 and step S203 of FIG. Information on criminals and the like is acquired via the communication unit 43 of the IC tag issuing device 4, and the criminal information acquired by the input unit 42 of the IC tag issuing device 4 and input to the input unit 42 of the IC tag issuing device 4. It is also possible not to issue the IC tag 3 if it is a criminal by comparing the entered visitor information and determining whether or not it is a criminal.

Similarly, it is also possible to previously register, for example, visitor information of workers in the building in the database 8. Also in this case, the input unit 42 of the IC tag issuing device 4 has a determination function, and the input unit 42 of the IC tag issuing device 4 is connected to the communication unit 71 of the server 7 between step S202 and step S203 in FIG. The information of the worker in the building is acquired via the communication unit 43 of the IC tag issuing device 4, and the information of the worker in the building acquired by the input unit 42 of the IC tag issuing device 4 is compared with the visitor information. It is determined whether or not it is a worker in a building. If it is not a worker in a building, it is determined whether or not it is a criminal as described above. It is also possible for the input unit 42 of the IC tag issuing device 4 to acquire worker attendee information and issue the IC tag 3.
By setting it as such a structure, safety | security can be improved more.

  Furthermore, in step S402 of FIG. 12, the calculation unit 73 of the server 7 acquires the output value of the sensor 21 at each sensor node 2. However, the present invention is not limited to this, and for example, the sensor node 2 that has detected an abnormal value. You may acquire the output value of each sensor 21 in the area to which it belongs.

  Further, in the identification of the fire occurrence area in step S106, in this embodiment, the calculation unit 73 of the server 7 acquires and compares the output values of the sensors 21 of all the sensor nodes 2, and the sensor 21 showing the largest output value is obtained. The area where the fire occurred is specified by specifying the vicinity of the sensor node 2 to which the sensor belongs, but not limited to this, the fire is generated by specifying the vicinity of the sensor node 2 to which the sensor 21 having the abnormal value first belongs. You may specify a region.

It is also possible to set the scale of the disaster in advance according to the output value of the sensor 21 and store it in the database 8. In this case, the computing unit 73 of the server 7 acquires information on the scale of the disaster from the database 8 and compares the acquired output value of the sensor 21 with information on the scale of the disaster to identify the scale of the disaster that has occurred. It is also possible. This process can be performed, for example, between step S501 and step S502 in FIG.
With such a configuration, it becomes possible to specify an evacuation route according to the scale of the disaster and to transmit the scale of the disaster to the people in the building through the output unit 32 of the IC tag 3.

  It is also possible to install a surveillance camera or the like in the building. In this case, a person may monitor the video of the monitoring camera, or the server 7 may be provided with a monitoring unit to perform monitoring. By adopting such a configuration, it is possible to more accurately identify the scale of the disaster and the state of expansion, and it is possible to identify a more appropriate evacuation route.

  Further, the output unit 32 of the IC tag 3 can be an input / output unit including a microphone, for example. With this configuration, it is possible to explain the current situation to the outside, for example, by talking to the outside.

  It is also possible to prepare a special IC tag 3 in advance for the fire brigade and explain the disaster situation to the fire brigade from the output unit 32 of the IC tag 3, for example.

In this embodiment, in the building information, information related to the area and information related to the exit are stored in the same area information, but may be stored as different information.
In the present embodiment, the exit ID and the window ID are stored as the same information in the area information, but may be stored as different information and given priority as an evacuation exit between the exit and the window. Good.

  In this embodiment, the sensor node 2, the IC tag issuing device 4, the gate 5, the display 6, the server 7, the database 8, and the terminal 9 are connected wirelessly, but may be connected by wire.

  In this embodiment, the gate 5 is composed of two antennas, but may be composed of one antenna.

It is an example of the block diagram which shows the structure of the guidance system at the time of a disaster of this embodiment. It is a figure which shows the example of area information. It is the figure which showed the example of visitor information. It is a figure which shows the example of building information. It is a figure which shows arrangement | positioning of the area and exit of one Embodiment in this invention. It is a figure which shows arrangement | positioning of the indicator of one Embodiment in this invention. It is a figure which shows arrangement | positioning of the gate of one Embodiment in this invention. It is a figure which shows arrangement | positioning of the sensor node of one Embodiment in this invention. It is a flow which shows the flow of a process of the guidance system at the time of a disaster of this invention. It is a flow which shows the flow of input of various information. It is a flow which shows the flow of a process of detection of a person's movement. It is a flow which shows the flow of the specific process of a fire outbreak area. It is a figure which shows the flow of the process of evacuation route determination. It is a flow which shows the flow of a process of calculation of the expansion direction and expansion speed of a fire. It is a flow which shows the flow of a process of an evacuation route change. It is a flow which shows the flow of a process of dispersion | distribution of the person in a building. It is a figure which shows one Embodiment of this invention (the 1). It is a figure which shows one Embodiment of this invention (the 2). It is a figure which shows one Embodiment of this invention (the 3). It is a figure which shows one Embodiment of this invention (the 4). It is a figure which shows one Embodiment of this invention (the 5). It is a figure which shows one Embodiment of this invention (the 6).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disaster guidance system 2 Sensor node 3 IC tag 4 IC tag issuing apparatus 5 Gate 6 Display 7 Server 8 Database 9 Terminal 22 Sensor node monitoring part 24 Sensor node calculation part 31 IC tag memory | storage part 52 IC tag information reading Unit 53 Gate storage unit 54 Gate monitoring unit 73 Server calculation unit 74 Server determination unit

Claims (7)

An identification means that is carried by an individual and stores unique identification information;
An identification information detection means for detecting passage of the identification means and obtaining identification information of the identification means;
A plurality of physical quantity detection means arranged in a building for detecting a predetermined physical quantity that changes due to the occurrence of a disaster;
A database in which disaster guidance information including information on the arrangement of the physical quantity detection means in the building, information on the arrangement of the identification information detection means in the building, and information on the building is stored;
Obtaining the physical quantity from the physical quantity detection means, obtaining information on the arrangement of the physical quantity detection means in the building from the database, and identifying a disaster area in the building based on the obtained information;
Obtaining the identification information from the identification information detection means, obtaining information on the arrangement of the identification information detection means in the building from the database, and identifying the position of the identification means in the building based on the obtained information The steps to
And obtaining information about the building from the database,
Including information processing means for executing a procedure for calculating an evacuation route based on the disaster area, the position of the identification means in the building, and information on the building;
A disaster guidance system characterized by The information processing means includes
A procedure for identifying a disaster expansion direction by repeatedly performing the procedure for identifying the disaster area;
A procedure for identifying a change in the position of the identification means by repeatedly executing a procedure for identifying the position of the identification means in the building;
2. The disaster guidance system according to claim 1, wherein a procedure for calculating an evacuation route is executed based on an expansion direction of the disaster, a change in the position of the identification unit, and information on the building. . The information processing means includes
A procedure for identifying the speed of disaster expansion by repeatedly performing the procedure for identifying the disaster area;
A procedure for identifying a change in the position of the identification means by repeatedly executing a procedure for identifying the position of the identification means in the building;
2. The disaster guidance system according to claim 1, wherein a procedure for calculating an evacuation route is executed on the basis of the expansion speed of the disaster, a change in the position of the identification unit, and information on the building. . An identification means storing unique identification information carried by an individual;
An identification information detection means for detecting passage of the identification means and obtaining identification information of the identification means;
Information on the arrangement of a plurality of physical quantity detection means arranged in a building that detects a predetermined physical quantity that changes due to the occurrence of a disaster;
A database in which disaster guidance information including information on the arrangement of the identification information detection means in the building and information on the building is stored;
A disaster guidance method in a disaster guidance system comprising an information processing means for calculating an evacuation route,
The information processing means is
Obtaining the physical quantity from the physical quantity detection means, obtaining information on the arrangement of the physical quantity detection means in the building from the database, and identifying a disaster area in the building based on the obtained information;
Obtaining the identification information from the identification information detection means, obtaining information on the arrangement of the identification information detection means in the building from the database, and identifying the position of the identification means in the building based on the obtained information And the steps to
Obtaining information about the building from the database;
A disaster guidance method comprising: executing a procedure including calculating the evacuation route based on the disaster area, the position of the identification means in the building, and information on the building. The information processing means is
A procedure for repeatedly specifying the disaster area to identify a disaster expansion direction by repeatedly executing the procedure;
A procedure for identifying a change in the position of the identification means by repeatedly performing a procedure for identifying the position of the identification means in the building;
5. The method according to claim 4, further comprising executing a procedure for calculating an evacuation route based on the disaster expansion direction, a change in the position of the identification unit, and information on the building. Disaster guidance method. The information processing means is
A procedure for identifying the speed of disaster expansion by repeatedly performing the procedure for identifying the disaster area; and
A procedure for identifying a change in the position of the identification means by repeatedly performing a procedure for identifying the position of the identification means in the building;
5. The method according to claim 4, further comprising a step of calculating an evacuation route based on the disaster expansion speed, a change in the position of the identification unit, and information on the building. Disaster guidance method.   A program for causing a computer to execute the disaster guidance method according to any one of claims 4 to 6.

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