JP5208995B2 - Rescue support method and information processing system used in this method - Google Patents

Description

  The present invention relates to a rescue support method and an information processing system used for the method, and more particularly to a technique for quickly and safely rescue a person in a building when a disaster occurs.

  In recent years, research and development of autonomous mobile systems has been actively conducted with the aim of realizing a universal society. Regarding the autonomous mobile system, for example, in Non-Patent Document 1, as its elemental technology, wireless signals are transmitted from a plurality of antennas installed in a base station to a portable terminal carried by a pedestrian, and transmitted from each antenna. A position locating system configured to obtain a relative position relationship between the mobile terminal and the antenna based on a phase difference between the mobile terminal and the current position of the pedestrian based on the obtained position relationship and a known absolute position of the base station. Is disclosed.

  Patent Document 1 discloses supporter information indicating whether or not each evacuation target person is a supporter who provides evacuation guidance support at the time of a disaster in order to support evacuation guidance of the evacuation target persons left in the facility at the time of a disaster. The position information of each evacuation target person, determine whether each evacuation target person has a specific characteristic, and based on the supporter information, the position information, and the determination result, An evacuation guidance support system is described in which a supporter is assigned to an evacuation target person.

  In Patent Document 2, communication connection is established with wireless transmitters installed at various locations, the evacuation locations and the installation locations of the respective wireless transmitters are stored, information on disaster occurrence locations is received, and the evacuation locations and the respective wireless transmissions are stored. An evacuation route information generation device is described that generates evacuation route information at each wireless transmitter installation location based on the positional relationship between the aircraft installation location and the disaster occurrence location, and transmits the generated evacuation route information to the wireless transmitter. Has been.

  In Patent Document 3, a plurality of evacuation guidance devices installed at a predetermined interval are associated with each other via a wireless LAN. In addition to the display unit, the evacuation guidance device includes a speaker that emits guidance voice, an ID, and a clock. It has a CPU with a function, and when a fire breaks out, it automatically generates a guide route from the evacuation guidance device near the fire to the evacuation guidance device near the safe exit while adjusting the time, and follows this guidance route Thus, there is described an evacuation guidance system in which individual speakers sequentially emit sound at a timing with a delay time between adjacent evacuation guidance devices from an evacuation guidance device near a fire to a safe escape port.

Takenori Takeuchi, Kiminori Kono, Minoru Kono, “Development of a location detection system using the 2.4 GHz band”, The 56th Annual Conference of the Chugoku Branch of the Institute of Electrical and Information Engineering, 2005

JP 2005-338991 A JP 2007-011830 A JP 2008-287467 A

  By the way, when a disaster such as a fire occurs in a building such as a high-rise building, a rescuer such as a rescue member needs to accurately grasp the current position of the rescued person in the building and perform rescue. In order to rescue the rescuer efficiently and quickly in cooperation with other rescuers, it is effective to perform rescue while accurately grasping the current position of the other rescuer.

  The present invention has been made in view of such a problem, and provides a rescue support method capable of quickly and safely rescue a person in a building when a disaster occurs, and an information processing system used for the method. With the goal.

  A main invention for achieving the above object is a rescue support method, in which a base station including a plurality of antennas arranged adjacent to each other is provided at a predetermined position of a building, and a radio signal is transmitted from each of the antennas. The rescuer's terminal for locating his / her current position based on the phase difference of the radio signal transmitted from each of the antennas is possessed by the rescuer, and based on the phase difference of the radio signal transmitted from each of the antennas A rescuer terminal for locating the current position of the rescuer, and providing a server device communicably connected to the base station, the rescuer terminal, and the rescuer terminal, from the rescuer terminal A current position of the rescuer is transmitted to a server device, and the current position of the rescuer is transmitted from the rescuer terminal to the server device. The server device includes the current position of the rescued person and the rescue device. Receiving the current position of the helper, generating a rescue route that is a route from the rescuer to the rescued person based on the received current position of the rescued person and the current position of the rescuer, and generated Information indicating the rescue route is transmitted to the rescuer terminal, and when the rescuer terminal receives the information, the rescuer terminal outputs information for guiding the rescue route.

  According to the present invention, the server device uses the accurate current position acquired by the position determination by the mobile terminal (rescuer terminal) to provide an accurate route from the rescuer to the rescued person for the rescuer. Can be provided. According to this, the rescuer can efficiently reach the rescued person's current position using the provided information.

  In another one of the present invention, the server device acquires the position of the disaster occurrence site in the building, receives the current position of the rescued person and the current position of the rescuer, and receives the rescued person Based on the current position of the person and the current position of the rescuer, the rescue route is generated so as not to pass the disaster occurrence site, and information indicating the generated rescue route is transmitted to the rescuer terminal.

  According to the present invention, since the server device acquires a route that does not pass through the disaster occurrence site among the rescue routes, the server device can surely provide a safe rescue route, and the rescuer can safely and reliably identify the rescued person. Can be rescued.

  In another one of the present invention, each of a plurality of rescuers possesses the rescuer terminal, and the server device acquires the current position of each of the rescuer terminals sent from each of the rescuer terminals, A path from the rescuer to the rescuer is received based on the received current location of the rescuer and the current location of the rescuer by receiving the current location of the rescuer and the current location of the rescuer. A rescue route is generated, information indicating the generated rescue route and information indicating the current location of the other rescuer are transmitted to the rescuer terminal. When the rescuer terminal receives the information, the rescue route is transmitted. And information indicating the current position of the other rescuer are output.

  According to the present invention, the rescuer terminal 400 outputs information for guiding the rescue route of itself (rescuer) and the current position of the other rescuer, so that the rescuer grasps the situation of the other rescuer. The rescuer can perform his / her own rescue operation, and the rescuer can rescue the rescuer efficiently and promptly in cooperation with other rescuers.

  In another one of the present invention, the server device stores a plurality of the evacuation routes corresponding to the current position of the rescued person, and receives the current position of the rescued person. The evacuation route corresponding to the current position is acquired, information indicating the acquired evacuation route is transmitted to the rescuer terminal, and the rescuer terminal receives the information and guides the evacuation route The server device transmits information indicating the evacuation route to the rescuer terminal, and the rescuer terminal outputs information indicating the evacuation route when the information is received.

  According to the present invention, the rescuer can perform rescue while grasping the evacuation route scheduled for the rescuer to pass, and can rescue the rescuer quickly and reliably.

  The information transmitted by the server device to the rescuer terminal includes image data for displaying an image indicating the rescue route on the rescuer terminal.

  According to this, since the information indicating the rescue route is visually provided to the rescuer by the image data, the rescuer can quickly and reliably grasp the rescue route.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  ADVANTAGE OF THE INVENTION According to this invention, the person who exists in a building at the time of disaster occurrence can be rescued quickly and safely.

1 is a diagram illustrating a schematic configuration of an information processing system 1. FIG. 2 is a diagram illustrating a hardware configuration of a server device 100. FIG. It is a figure which shows the main functions with which the server apparatus 100 is provided. 2 is a diagram illustrating a hardware configuration of a base station 200. FIG. It is a figure which shows the main functions with which the base station 200 is provided. It is a figure which shows the hardware constitutions of the to-be-guided person terminal 300 (rescuer terminal 400). It is a figure which shows the main functions with which the to-be-guided person terminal 300 (rescuer terminal 400) is provided. It is a figure which shows the data format of a position location signal. It is a figure explaining the positional relationship of the base station 200 and a to-be-induced person terminal 300. FIG. It is a figure explaining the positional relationship of the antenna 2151 which comprises the antenna group 215, and the to-be-guided person terminal 300. FIG. 2 is a diagram illustrating a positional relationship between a base station 200 and a guided person terminal 300 at a location where a position location system 10 is used. FIG. It is a flowchart explaining position location processing S1200. It is a screen displayed on the display device 115 of the server device 100. It is a figure which shows an example of the base station position information 131. It is a figure which shows an example of the floor map information. It is a figure which shows an example of the checkpoint information. It is a figure which shows an example of the evacuation route information 135. FIG. It is a figure which shows an example of the disaster information 136. FIG. It is a figure which shows an example of the evacuation route usage information 137. FIG. It is a flowchart explaining evacuation guidance processing S2000. It is a figure which shows the data structure of the evacuation guidance information acquisition request 2100. It is a figure showing an example of guideee terminal position information 132. It is the flowchart explaining the process of S2017 in detail. It is a figure which shows a mode that the evacuation guidance information is displayed on the to-be-guided person terminal 300. FIG. It is a flowchart explaining rescue support processing S2500. It is a figure which shows the data structure of the rescue assistance information acquisition request 2600. It is a figure which shows an example of the rescuer terminal position information 138. It is a figure which shows a mode that the rescue support information is displayed on the rescuer terminal 400. FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
= Information processing system =
FIG. 1 shows a schematic configuration of an information processing system 1 described as an embodiment. The information processing system 1 is a facility (for example, accommodation facilities such as a hotel, an office building, a hospital, a school building, a shopping center, a department store, etc.) that needs to be guided to a safe area when a disaster such as a fire, a gas leak, or an earthquake occurs. It is installed in high-rise apartments and large passenger ships. In the following description, the hotel 2 on the higher floor will be described as an example of the facility.

  As shown in FIG. 1, the information processing system 1 includes a server device 100 provided at a predetermined position of a hotel 2, one or more base stations 200 connected to the server device 100 via a communication network 50, Rescue person possessed by rescuer 4 such as a rescue recipient member 300 who is rescued by rescued person terminal 300 possessed by a guest or an employee (hereinafter referred to as guided person 3) of hotel 2 or the like. It includes a terminal 400 and a plurality of disaster detection sensors 500 (fire detection sensors, seismometers, gas leak detection sensors, etc.) that are provided at various locations in the hotel 2 and are communicably connected to the server device 100.

  In the following, the guided person 3 is also referred to as the rescued person 3, and the guided person terminal 300 is also referred to as the rescued person terminal 300.

  The communication network 50 connects devices in a communicable manner using a wired communication method or a wireless communication method. The communication network 50 is, for example, a LAN (Local Area Network), the Internet, or the like.

  The server device 100 is provided in a disaster prevention center of the hotel 2, for example. The base station 200 is provided at a position where the space in the hotel 2 can be looked down, such as a passage, a ceiling of stairs, a ceiling of a guest room, a ceiling of an elevator hall, and the like. Note that the number and installation positions of the base stations 200 are appropriately adjusted so that the current position of the guided person 3 can be specified (described later) in an optimal state.

  FIG. 2 shows a hardware configuration of the server device 100. As shown in the figure, the server device 100 communicates with the base station 200 by connecting to a CPU 111, a memory 112, a hard disk 113, an input device 114 such as a keyboard and a mouse, a display device 115 such as a liquid crystal display, and a communication network 50. The communication interface 116 is provided.

  Among these, the CPU 111 realizes various functions provided by the server device 100 by executing a program stored in the memory 112. The input device 114 is a user interface that receives operation inputs. The display device 115 is a user interface that provides visual information to the user, and information such as the current position and moving direction of the guided person 3 is displayed on the display device 115 in real time. The communication interface 116 exchanges information with the server apparatus 100 and other base stations 200 via the communication network 50.

  FIG. 3 shows the main functions of the server device 100. As shown in the figure, the server device 100 includes a guided person current position management unit 121, an evacuation guidance information providing unit 122, a disaster information management unit 123, a rescuer current position management unit 125, and a rescue support information providing unit 126. Each function is provided.

  The guided person current position management unit 121 communicates with the base station 200 to acquire the current position of the guided person terminal 300 (the current position of the guided person 3).

  The evacuation guidance information providing unit 122 communicates with the guided person terminal 300 via the base station 200 and provides the guided person terminal 300 with information for guiding the evacuation route (hereinafter referred to as evacuation guidance information).

  The disaster information management unit 123 manages information on a disaster currently occurring in the hotel 2 based on information sent from the fire detection sensor 500 as disaster information 136 described later. Details of these functions will be described later.

  The rescuer current position management unit 125 communicates with the base station 200 to acquire the current position of the rescuer terminal 400 (the current position of the rescuer 4).

  The evacuation guidance information providing unit 126 communicates with the rescuer terminal 400 via the base station 200 and provides the rescuer terminal 400 with information related to rescue support (hereinafter referred to as rescue support information).

  As shown in the figure, the server apparatus 100 includes base station position information 131, guided person terminal position information 132, floor map information 133, checkpoint information 134, evacuation route information 135, disaster information 136, and evacuation route use information. 137 and rescuer terminal position information 138 are managed. The server apparatus 100 manages these pieces of information as a database. Details of such information will be described later.

  FIG. 4 shows the hardware configuration of the base station 200. As shown in the figure, the base station 200 includes a CPU 211, a memory 212, a communication interface 213, and an antenna group 215.

  Among these, the CPU 211 executes programs stored in the memory 212 to realize various functions provided in the base station 200. The communication interface 213 communicates with the server device 100 via the communication network 50. The wireless communication interface 214 transmits a wireless signal for position location described later. The antenna group 215 includes a plurality of circularly polarized directivity antennas 2151. Details of the antenna group 215 will be described later.

  The CPU 211, the memory 212, the communication interface 213, and the antenna group 215 are connected to be communicable with each other via the bus 220. The antenna group 215 is provided with a changeover switch 2152. The changeover switch 2152 connects to the wireless communication interface 214 by selecting or automatically selecting one of the antennas 2151 constituting the antenna group 215.

  FIG. 5 shows main functions provided in the base station 200. The communication unit 261 controls the communication interface 213 to exchange various information with the server device 100. The position determination signal transmission unit 263 transmits a radio signal (hereinafter referred to as a position determination signal) used for determining the current position of the guided person terminal 300. The setting information storage unit 264 stores the setting information described above.

  FIG. 6 shows a hardware configuration of the guided person terminal 300 (same as the rescuer terminal 400). As shown in the figure, the guided person terminal 300 includes a CPU 311, a memory 312, a wireless communication interface 313, a directional antenna 314, an input device 315 such as a touch panel and operation buttons, and a display device 316 such as a liquid crystal display. The CPU 311 realizes various functions provided in the guided person terminal 300 by executing a program stored in the memory 312. The guided person terminal 300 (or rescuer terminal 400) may be configured by using hardware of a portable device used for other purposes such as a cellular phone. In addition, when using wireless communication hardware such as a cellular phone, the frequency band of a radio signal used for other purposes such as a call or data communication is separated from the frequency band of a radio signal used for position location described later. (In this case, it is necessary to prepare an antenna suitable for the wavelength of each frequency band.)

  FIG. 7 shows main functions of the guided person terminal 300 (same as the rescuer terminal 400). In the figure, a position location signal receiver 331 receives a location signal transmitted from the base station 200 by the wireless communication interface 313. The information transmission / reception unit 332 communicates with the server apparatus 100 via the communication network 50, and updates information on programs and data executed by the guided person terminal 300 such as firmware and the guided person 3 (or the rescuer 4). Reception (downloading) of information for presentation and transmission (uploading) of various information used in the server apparatus 100 from the guided person terminal 300 (or rescuer terminal 400) to the server apparatus 100 are performed.

  The information display unit 333 outputs information to be presented to the guided person 3 (or the rescuer 4) to the display device 316. The position locating unit 334 determines the current position of the guided person terminal 300 (or the rescuer terminal 400) based on the position locating signal received by the position locating signal receiving unit 331. If necessary, the current position of the guided person terminal 300 (or rescuer terminal 400) is transmitted from the person terminal 300 to the base station 200 by wireless communication, and the communication network 50 is transmitted from the base station 200. To the server device 100. The specific mechanism of position location will be described later.

<Positioning function>
In the information processing system 1 of the present embodiment, the mechanism related to the location of the guided person terminal 300 includes a base station 200 and a guided person terminal 300 existing around the base station 200. This is realized by using the functions of the orientation system.

  The radio communication interface 214 of the base station 200 described above transmits a radio signal subjected to spectrum spread while periodically switching a plurality of antennas 2151 constituting the antenna group 215. On the other hand, the position location signal receiving unit 331 of the guided person terminal 300 receives a signal transmitted from each antenna 2151 of the base station 200 by the antenna 314. In addition, in order to prevent radio wave interference between adjacent base stations, each base station 200 shares a synchronization signal between the base stations 200 so that a position location signal is not transmitted from the adjacent base stations 200 at the same time. The transmission timing is controlled.

  FIG. 8 shows the data format of the position location signal transmitted from the base station 200. As shown in the figure, the position location signal includes the above-described synchronization signal 611, location code 612 (UCODE), antenna information 613, and measurement signal 614. The synchronization signal 611 is composed of a total of 48 bits of data of a 32-bit preamble signal and a 16-bit synchronization signal.

  Among these, the location code 612 (UCODE) is information for specifying the installation location of the base station 200. The place code 612 is a 128-bit code assigned to each position in accordance with the unified standard.

  The antenna information 613 includes 16-bit data indicating the height of the antenna 2151, the identifier of the antenna 2151, the directivity direction of the antenna 2151, and the like.

  The measurement signal 614 includes a signal for detecting the direction in which the guided person terminal 300 exists and the relative distance to the guided person terminal 300, and is transmitted by sequentially switching the four antennas 2151 as the base points. Contains a spreading code.

  FIG. 9 shows a situation where the user who owns the guided person terminal 300 is near the utility pole where the base station 200 is installed. As shown in the figure, the person-to-be-guided terminal 300 exists at a position of ground height 1 (m), and the base station 200 is provided at a position of ground height H (m). The distance along the ground surface from directly under base station 200 to guided person terminal 300 is L (m).

  FIG. 10 shows the relative positional relationship between each antenna 2151 constituting the antenna group 215 of the base station 200 and the guided person terminal 300. Each antenna 2151 constituting the antenna group 215 of the base station 200 is installed such that each directivity direction is obliquely downward. The antenna group 215 shown in the figure has a distance of 3 cm (this distance corresponds to a quarter wavelength when a radio wave in the 2.4 GHz band is used as a positioning signal) and is arranged adjacent to each other in a substantially square shape. Includes a circularly polarized directional antenna.

Here, if the angle formed by the horizontal direction at the height position of the antenna group 215 and the direction of the guided person terminal 300 with respect to the antenna group 215 is α,
α = arcTan (D (m) / L (m)) = arcSin (ΔL (cm) / 3 (cm))
It becomes. Note that ΔL (cm) in the above expression is a propagation path length difference between two specific antennas 2151 of the antenna group 215 and the guided person terminal 300.

If the phase difference between the positioning signals transmitted from the two specific antennas 2151 constituting the antenna group 215 is Δθ, the ΔL is
ΔL (cm) = Δθ / 2π / λ (cm)
It becomes. For example, when a 2.4 GHz band radio wave is used as the position location signal, the wavelength λ≈12 (cm), so α = arcSin (2Δθ / π)
It becomes. Can be calculated from the measurable range (-π / 2 <Δθ <π / 2) in α is [Delta] [theta] (radian) where it is possible to specify the direction in which there is a base station 200 from the above equation.

Next, a mechanism for locating the position of the guided person terminal 300 using the above result will be described.
FIG. 11 shows the positional relationship between the base station 200 and the guided person terminal 300 at the site where the position location system 10 is used. As shown in the figure, the ground height of the antenna group 215 of the base station 200 is H (m), the ground height of the guided person terminal 300 is h (m), and the position of the ground surface directly below the base station 200 is the origin. When an orthogonal coordinate axis (X axis, Y axis) is set, the angle formed by the direction from the base station 200 to the guided person terminal 300 and the X axis is ΔΦ (x), and the direction from the base station 200 to the guided person terminal 300 If the angle formed by the Y axis is ΔΦ (y), the position of the guided person terminal 300 with respect to the origin can be obtained from the following equation.
Δd (x) = (H−h) × Tan (ΔΦ (x))
Δd (y) = (H−h) × Tan (ΔΦ (y))
If the position of the origin is (X1, Y1), the current position (Xx, Yy) of the guided person terminal 300 is
Xx = X1 + Δd (x)
Yy = Y1 + Δd (y)
Can be obtained from

  The positioning principle described above is disclosed in, for example, Japanese Patent Application Laid-Open Nos. 2004-184078, 2005-351877, 2005-351878, 2006-23261, and 2008-. No. 256559 and the like.

  Next, a specific example of the process of locating the current position of the guided person terminal 300 (hereinafter referred to as position locating process S1200) performed by the position locating unit 334 of the guided person terminal 300 will be described. The current position locating process is performed, for example, when the current position of the guided person terminal 300 is reported to the server apparatus 100, or when the user of the guided person terminal 300 performs a predetermined operation on the input device 315. It is executed at any time.

  FIG. 12 is a flowchart for explaining the position location processing S1200. As shown in the figure, when locating, the position locator 334 first acquires a position locating signal received by the position locating signal receiver 331 (S1211). Next, the position locating unit 334 locates the current position of the guided person terminal 300 using the position locating signal according to the above-described structure (S1212). Hereinafter, the information indicating the current position is referred to as terminal position information. The current position of the guided person terminal 300 is obtained by setting the above-described origin as the installation position of the base station 200.

<Functions of server device>
FIG. 13 is a screen (hereinafter referred to as a menu screen 70) displayed on the display device 115 of the server device 100. The administrator of the disaster prevention center of the hotel 2 sets various information in the information processing system 1 using this screen. Further, the administrator or the like uses this screen to check various information provided by the information processing system 1.

  As shown in the figure, the menu screen 70 includes selection fields such as base station position information management 71, floor map management 72, checkpoint management 73, evacuation route setting 74, disaster information display 76, and evacuation route usage status display 77. Is provided. When an administrator or the like operates the input device 114 to select any selection field, a function corresponding to the selection field is activated.

  The base station location information management 71 in the selection column is selected when setting the base station location information 131 described above. FIG. 14 shows an example of the base station position information 131. As shown in the figure, the base station position information 131 is composed of one or more records having items of a base station ID 1311, a floor number 1312, and coordinates 1313.

  Information (base station ID) for identifying the base station 200 is set in the base station ID 1311. In the floor number 1312, the floor number of the floor of the hotel 2 for which the base station 200 is responsible for the location of the guided person terminal 300 is set. In the coordinates 1313, coordinates corresponding to the position where the base station 200 is installed (for example, coordinates in a plane coordinate system set for each floor) are set.

  Of the selection columns, the floor map management 72 is selected when the above-described floor map information 133 is set.

  FIG. 15 shows an example of the floor map information 133. As shown in the figure, the floor map information 133 is composed of one or more records having items of a floor number 1331 and a map data name 1332. In the floor number 1331, the floor number of the floor of the hotel 2 is set. In the map data name 1332, a data name of data (hereinafter referred to as map data) for displaying a floor map of the floor is set. The map data includes, for example, screen data (moving image data, still image data) for displaying a floor map on the display device 316 of the guided person terminal 300, and facilities (for example, guest rooms, shops, vending machines) present on the floor. , Hot water room, washroom, elevator, stairs, emergency exit, fire alarm, etc.) and the information indicating the type and location of the information.

  The checkpoint management 73 in the selection column is selected when setting the checkpoint information 134 described above.

  FIG. 16 shows an example of the checkpoint information 134. As shown in the figure, the checkpoint information 134 is composed of one or more records having items of a checkpoint ID 1341, a rank 1342, and coordinates 1343.

  In the check point ID 1341, information for specifying the check point (hereinafter referred to as a check point ID) is set. Here, the check point is information indicating a predetermined position (marking position) set in the hotel 2 that is used by the administrator or the like for setting the evacuation route. In the present embodiment, the check point is represented by the floor number and coordinates of the floor of the hotel 2 (for example, coordinates in a plane coordinate system set for each floor). The rank of the checkpoint is set to the rank 1342, and the coordinate of the checkpoint is set to the coordinate 1343.

  The evacuation route setting 74 in the selection column is selected when the evacuation route information 135 described above is set.

  FIG. 17 shows an example of the evacuation route information 135. As shown in the figure, the evacuation route information 135 includes one or more records having items of an evacuation route ID 1351, an evacuation route 1352, an applicable floor number 1353, an applicable range 1354, and a maximum allowable number of people 1355.

  In the evacuation route ID 1351, information for identifying the evacuation route (hereinafter referred to as an evacuation route ID) is set. The evacuation route is a route set to guide the guided person 3 out of the hotel 2 safely. In the present embodiment, the evacuation route is set by the administrator or the like, but the server device 100 may automatically generate it using a known route search algorithm or the like.

  In the evacuation route 1352, information indicating the evacuation route is set. As shown in the figure, the evacuation route is represented by a connection of checkpoints (checkpoint ID 1341). In the applicable floor number 1353, information indicating the floor number of the floor to which the evacuation route is applied is set.

  In the application range 1354, information indicating a range to which the evacuation route is applied is set. When the guided person 3 (guided person terminal 300) exists within the range specified by the application floor 1353 and the application range 1354, the evacuation route is adopted as a candidate. In the maximum allowable number of people 1355, information indicating the allowable number of people who can use the evacuation route at the same time is set. For example, a small allowable number of people is set for a narrow evacuation route.

  The disaster information display 76 in the selection column is selected when an administrator or the like confirms information stored in the disaster information 136.

  FIG. 18 shows an example of the disaster information 136. The disaster information 136 stores information related to disasters currently occurring at the hotel 2. As shown in the figure, the disaster information 136 is composed of one or more records having items of an occurrence time 1361, a type 1362, a rank 1363, and coordinates 1364.

  In the occurrence time 1361, the time when the disaster occurred (for example, the time when the occurrence of the disaster was detected based on the disaster detection sensor 500) is set. In the type 1362, information indicating the type of disaster (fire, gas leak, earthquake, etc.) is set. In the floor 1363, the floor (floor) of the disaster site is set. Coordinates indicating the position of the disaster occurrence site on the floor (for example, coordinates in a plane coordinate system set for each floor) are set in the coordinates 1364.

  The evacuation route usage status display 77 in the selection column is selected when an administrator or the like confirms information related to the evacuation route currently used by the guided person 3 (hereinafter referred to as evacuation route usage information).

  FIG. 19 shows an example of the evacuation route usage information 137. As shown in the figure, the evacuation route usage information 137 is composed of one or more records having items of an evacuation route ID 1371 and a number of users 1372.

  In the evacuation route ID 1371, information for specifying the evacuation route (hereinafter referred to as an evacuation route ID) is set. In the number of users 1372, the number of guided persons 3 who are currently using the evacuation route is set.

<Evacuation guidance>
Next, processing related to evacuation guidance performed in the information processing system 1 will be described. FIG. 20 is a flowchart for explaining this process (hereinafter referred to as evacuation guidance process S2000). The process shown in FIG. 5 is performed by, for example, a guided person 3 who knows that a disaster has occurred in the hotel 2 due to an alarm of a fire alarm or a broadcast in the hotel 2, and performs a predetermined operation on the input device 315. Start by doing. Note that when the disaster occurs, the server device 100 may automatically display information indicating that the disaster has occurred on the guided person terminal 300 to notify the guided person 3 of the occurrence of the disaster.

  First, the position locating unit 334 of the guided person terminal 300 determines its current position, that is, terminal position information (S2011).

  Next, the guided person terminal 300 transmits a signal requesting acquisition of evacuation guidance information (hereinafter referred to as an evacuation guidance information acquisition request 2100) to the server apparatus 100 via the base station 200 (S2012). FIG. 21 shows the data structure of the evacuation guidance information acquisition request 2100. As shown in the figure, in the evacuation guidance information acquisition request 2100, the terminal position information 2111 acquired in S2011, the terminal ID 2112 that is information identifying the guided person terminal 300, and the position of the guided person terminal 300 are shown. And a base station ID 2113 that is information for identifying the base station 200 that has performed the orientation (the base station 200 that has transmitted the evacuation guidance information acquisition request 2100 to the server device 100).

  Upon receiving the evacuation guidance information acquisition request 2100 (S2013), the server device 100 acquires the current position of the guided person terminal 300 and registers it in the guided person terminal position information 132 (S2014). Specifically, the server apparatus 100 acquires the floor number corresponding to the base station ID 2113 included in the evacuation guidance information acquisition request 2100 from the base station position information 131, and the acquired floor number and the evacuation guidance information acquisition request 2100. The terminal position information 2111 is registered in the guided person terminal position information 132 in association with the terminal ID 2112 of the evacuation guidance information acquisition request 2100. FIG. 22 shows an example of the guided person terminal position information 132.

  Next, the server apparatus 100 corresponds to the current position of the guided person terminal 300 (the position specified by the floor number acquired in S2014 and the terminal position information 2111) among the evacuation routes registered in the evacuation route information 135. An evacuation route (hereinafter referred to as an evacuation route candidate) is extracted (S2015). More specifically, of the evacuation routes registered in the evacuation route information 135, the evacuation route (evacuation route ID 1351) including the current position of the guided person terminal 300 in the range specified by the applicable floor number 1353 and the applicable range 1354 ).

  Next, the server apparatus 100 excludes the route passing through the disaster occurrence site from the evacuation route candidates extracted in S2015 (S2016). This process is performed by determining whether each evacuation route candidate passes through the disaster occurrence site acquired from the disaster information 136 based on the evacuation route 1352 of the evacuation route candidate and the checkpoint information 134, for example.

  Next, the server apparatus 100 imposes further conditions on each of the evacuation route candidates remaining without being excluded in S2016 and finally determines one evacuation route (S2017).

  FIG. 23 is a flowchart illustrating in detail the processing of S2017. First, the server apparatus 100 determines whether or not there is one evacuation route candidate remaining without being excluded in S2016 (S2311). If there is only one evacuation route candidate that is not excluded in S2016 (S2311: 1), the evacuation route candidate is determined (S2321).

  On the other hand, when there are a plurality of evacuation route candidates that are not excluded in S2016 (S2311: plural), one with the shortest route length is selected (S2312). When there are a plurality of routes having the same route length, other conditions (for example, select the route farthest from the disaster occurrence site) are narrowed down to one.

  Next, the server apparatus 100 obtains the maximum allowable number of people (acquired from the number of users 1372 of the evacuation route usage information 137) of the evacuation route candidate selected in S2312 from the maximum allowable number of people 1355 of the evacuation route information 135. ) Is exceeded (S2313). If the number of evacuation route candidates selected in S2312 does not exceed the maximum allowable number (S2313: YES), the evacuation route is determined as the evacuation route candidate (S2321). On the other hand, if the number of users of the evacuation route candidates selected in S2312 exceeds the maximum allowable number (S2313: NO), the process proceeds to S2314.

  In S2314, server device 100 determines whether there is an evacuation route candidate other than the currently selected evacuation route candidate. If it exists (S2314: YES), one evacuation route candidate other than the currently selected evacuation route candidate is selected (S2315), and the processing is repeated from S2313. If it does not exist (S2314: NO), the evacuation route is determined as the currently selected evacuation route candidate (S2321).

  In the above processing, when there are a plurality of evacuation route candidates, the evacuation route is determined by determining whether or not the number of evacuation route candidates exceeds the maximum allowable number, but this determination is not necessarily performed. It is not necessary (in this case, the path length is determined to be the shortest). Conversely, the evacuation route may be determined only by whether or not the number of evacuation route candidates used exceeds the maximum allowable number without determining the route length.

  In S2018 of FIG. 20, the evacuation route usage information 137 is updated based on the result of S2017 (1 is added to the number of users 1372 of the determined evacuation route ID 1371).

  Next, the server apparatus 100 generates evacuation guidance information for guiding the evacuation route determined in S2017 (S2019). The evacuation guidance information generated here includes, for example, screen data for guiding the evacuation route determined in S2017 to map data acquired from the floor map information 133, and facilities ( For example, information indicating the type and position of a guest room, a store, a vending machine, a hot water supply room, a washroom, an elevator, a staircase, an emergency exit, a fire alarm, and the like.

  Next, the server apparatus 100 transmits the generated evacuation guidance information to the guided person terminal 300 that has transmitted the evacuation guidance information acquisition request 2100 (S2020).

  When the guided person terminal 300 receives the evacuation guidance information from the server device 100 (S2021), the guided person terminal 300 provides the guided person 3 with a screen and voice guidance based on the received information (S2022). FIG. 24 shows a state where the evacuation guidance information is displayed on the guided person terminal 300. As shown in the figure, the display device 316 displays a current position 3161 of the guided person 3, a facility position 3163, a disaster occurrence location 3164, and an evacuation route 3165.

  According to the above, the server apparatus 100 can provide an accurate evacuation route to the guided person 3 using the accurate current position acquired by the position determination by the portable terminal (the guided person terminal 300). According to this, the to-be-guided person 3 can evacuate to a safe place efficiently using the information of the exact evacuation route.

  Moreover, since the server apparatus 100 acquires a route that does not pass through the disaster occurrence site from among the evacuation routes, the server device 100 can provide a safe evacuation route to the guided person 3. Thereby, the to-be-guided person 3 can evacuate more reliably.

  Moreover, since the server apparatus 100 automatically acquires the shortest route among the evacuation route candidates as the evacuation route, the guided person can be evacuated quickly from the disaster occurrence place.

  Moreover, since the server apparatus 100 acquires the evacuation route whose number of users is less than the allowable number from among the candidates for the evacuation route and transmits the evacuation route to the portable terminal (guided person terminal 300), the guided person 3 is more quickly displayed. Can be evacuated.

  In addition, since the server apparatus 100 visually provides the guided person with information indicating the evacuation route using the image data, the guided person 3 can quickly and reliably grasp the evacuation route.

<Rescue support>
Next, processing related to rescue support performed in the information processing system 1 will be described. FIG. 25 is a flowchart for explaining this process (hereinafter referred to as rescue support process S2500). The process shown in the figure is started, for example, when the rescuer 4 having the rescuer terminal 400 arrives at the site and performs a predetermined operation on the input device 315.

  First, the position locating unit 334 of the rescuer terminal 400 locates its current position and acquires terminal position information (S2511).

  Next, the rescuer terminal 400 transmits a signal for requesting acquisition of rescue support information (hereinafter referred to as a rescue support information acquisition request 2600) to the server device 100 via the base station 200 (S2512). FIG. 26 shows the data structure of the rescue support information acquisition request 2600. As shown in the figure, in the rescue support information acquisition request 2600, the terminal location information 2611 acquired in S2511, the terminal ID 2612 that is information for identifying the rescuer terminal 400, and the location of the rescuer terminal 400 are set. A base station ID 2613 that is information for identifying the base station 200 that has performed (the base station 200 that has transmitted the rescue support information acquisition request 2600 to the server device 100) is included.

  Upon receiving the rescue support information acquisition request 2600 (S2513), the server apparatus 100 acquires the current position of the rescuer terminal 400 and registers it in the rescuer terminal position information 138 (S2514). Specifically, the server apparatus 100 acquires the floor number corresponding to the base station ID 2613 included in the rescue support information acquisition request 2600 from the base station position information 131, and the acquired floor number and the rescue support information acquisition request 2600. The terminal position information 2611 is registered in the rescuer terminal position information 138 in correspondence with the terminal ID 2612 of the rescue support information acquisition request 2600. FIG. 27 shows an example of rescuer terminal position information 138.

  Next, the server apparatus 100 determines the rescued person 3 to be a rescue target person (S2515). Specifically, one guideee terminal 300 (terminal ID 1321) registered in the guideee terminal position information 132 is acquired. When a plurality of rescueees 3 are registered in the guided person terminal position information 132, for example, the recipients registered in the guided person terminal position information 132 from the server apparatus 100 to the rescuer terminal 400 are used. Information about the rescuer 3 may be provided so that the rescuer 3 is selected by the rescuer 4.

  Next, the server device 100 starts from the current position of the rescuer 4 (the current position of the rescuer terminal 400 acquired in S2514), and the current position of the rescuer 3 determined in S2515 (from the guided person terminal position information 132). A route candidate (hereinafter referred to as a rescue route candidate) up to the current position obtained is generated (S2516). The rescue route candidate is generated using a predetermined route search algorithm.

  Next, the server device 100 refers to the disaster information 136 and excludes a route passing through the disaster occurrence site from the rescue route candidates generated in S2516 (S2517).

  Next, the server device 100 determines a rescue route candidate that remains without being excluded in S2517 as a rescue route (S2518). When there are a plurality of rescue route candidates that remain without being excluded, for example, the one with the shortest route among the remaining rescue route candidates is selected.

  Next, the server device 100 generates rescue support information for guiding the rescue route determined in S2518 (S2519). The rescue support information generated here includes, for example, screen data for guiding the rescue route determined in S2518 to map data acquired from the floor map information 133, and facilities ( For example, information indicating the type and position of a guest room, a store, a vending machine, a hot water supply room, a washroom, an elevator, a staircase, an emergency exit, a fire alarm, and the like. The rescue support information includes the current location of the other rescuer 4 acquired by the rescue support information acquisition request 2600 from the rescuer terminal 400 possessed by the other rescuer 4 and registered in the rescuer location information 138. Contains information to indicate.

  Next, the server apparatus 100 transmits the generated rescue support information to the rescuer terminal 400 that has transmitted the rescue support information acquisition request 2600 (S2520).

  When the rescuer terminal 400 receives the rescuer support information from the server device 100 (S2521), the rescuer terminal 400 provides the rescueee 3 with a screen and voice guidance based on the received information (S2522). FIG. 28 shows a state where rescue support information is displayed on the rescuer terminal 400. As shown in the drawing, the display device 316 of the rescuer terminal 400 includes a current position 3161 of the rescuer 4, a current position 3162 of the rescuer 4, a current position 3163 of another rescuer, and a rescuer 4 to be rescued. An image 3164 that guides the route to the person 3 is displayed. The image (floor map) displayed on the display device 316 can be freely scrolled using the scroll button 3151 (input device 315).

  According to the above, the server apparatus 100 provides an accurate route from the rescuer 4 to the rescued person 3 by using an accurate current position acquired by position determination by the mobile terminal (rescuer terminal 400). Can do. According to this, the rescuer 4 can reach the current position of the rescueee 3 efficiently using these pieces of information.

  Moreover, since the server apparatus 100 acquires a route that does not pass through the disaster occurrence site from among the rescue routes, the server device 100 can reliably provide a safe rescue route. Thereby, the rescuer 4 can rescue the rescuer 3 reliably.

  Moreover, since the rescuer terminal 400 outputs the information which guides the rescue route of itself (rescuer 4) and the current position of the other rescuer 4, the rescuer 4 confirms the situation of the other rescuer 4. While doing their own rescue activities.

  Further, since the server device 100 visually provides the rescuer 4 with the information indicating the rescue route by the image data, the rescuer 4 can grasp the rescue route quickly and reliably.

  Note that the evacuation route of the rescuer 3 may be displayed on the display device 316 of the rescuer terminal 400. Specifically, the server apparatus 100 provides the rescuer terminal 400 with the evacuation route determined in S2017 as rescue support information. If it does in that way, the rescuer 4 can perform rescue while grasping | ascertaining the evacuation path | route which the rescuer 3 will pass, and can rescue the rescuer 3 quickly.

  By the way, description of the above embodiment is for making an understanding of this invention easy, and does not limit this invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

  For example, the position determination of the guided person terminal 300 is performed on the guided person terminal 300 side by receiving the positioning signal transmitted from the base station 200 on the guided person terminal 300 side as described in the above embodiment. In addition to the method described above, an antenna group is provided on the guided person terminal 300 side, a position location signal is transmitted from the guided person terminal 300 side to the base station 200, and this position location signal is received on the base station 200 side. Thus, the position determination can be performed on the base station 200 side. The same applies to the rescuer terminal 400.

DESCRIPTION OF SYMBOLS 1 Information processing system 2 Hotel 3 Guided person 4 Rescuer 70 Menu screen 71 Base station position information management 72 Floor map management 73 Checkpoint management 74 Evacuation route setting 76 Disaster information display 77 Evacuation route usage status display 100 Server device 131 Base station Position information 132 Guided person terminal position information 133 Floor map information 134 Check point information 135 Evacuation route information 136 Disaster information 137 Evacuation route use information 138 Rescue terminal location information 200 Base station 300 Guided person terminal 400 Rescue person terminal 500 Disaster detection Sensor 300 Guided person terminal 331 Positioning signal receiving unit 334 Positioning unit S1200 Positioning process S2000 Evacuation guidance process S2500 Rescue support process

Claims (8)

A rescue support method,
A base station having a plurality of antennas arranged adjacent to each other is provided at a predetermined position of the building,
Transmitting radio signals from each of the antennas,
The rescuer has a rescuer terminal for locating his current position based on the phase difference of the radio signal transmitted from each of the antennas;
The rescuer possesses a rescuer terminal that locates his current position based on the phase difference of the radio signal transmitted from each of the antennas,
A server device connected to be communicable with the base station, the rescuer terminal, and the rescuer terminal is provided,
Sending the current position of the rescuer from the rescuer terminal to the server device,
Transmitting the current position of the rescuer from the rescuer terminal to the server device;
The server device
A path from the rescuer to the rescuer is received based on the received current location of the rescuer and the current location of the rescuer by receiving the current location of the rescuer and the current location of the rescuer. Create a rescue route,
Send the information indicating the generated rescue route to the rescuer terminal,
When the rescuer terminal receives the information, it outputs information for guiding the rescue route ,
The server device
Storing a plurality of evacuation routes corresponding to the current position of the rescued person,
When receiving the current position of the rescued person, obtain the evacuation route corresponding to the received current position of the rescued person,
Sending the acquired information indicating the evacuation route to the rescuer terminal;
Sending information indicating the evacuation route to the rescuer terminal;
The rescuer terminal, when receiving information indicating the evacuation route, outputs information for guiding the evacuation route,
When the rescuer terminal receives the information indicating the evacuation route, the rescuer terminal outputs the information indicating the evacuation route . The rescue support method according to claim 1,
The server device
Obtain the location of the disaster occurrence site in the building,
The rescue route is received so that the current location of the rescuer and the current location of the rescuer are received, and the current location of the rescuer and the current location of the rescuer are not passed through the disaster occurrence site. Produces
A rescue support method comprising transmitting information indicating the generated rescue route to the rescuer terminal. The rescue support method according to claim 1,
Each rescuer has the rescuer terminal,
The server device
Obtaining the current location for each sent from each of the rescuer terminals;
A path from the rescuer to the rescuer is received based on the received current location of the rescuer and the current location of the rescuer by receiving the current location of the rescuer and the current location of the rescuer. Create a rescue route,
Send the information indicating the generated rescue route and the information indicating the current position of the other rescuer to the rescuer terminal,
Upon receiving the information, the rescuer terminal outputs information for guiding the rescue route and information indicating the current location of the other rescuer. The rescue support method according to claim 1,
The rescue support method, wherein the information transmitted from the server device to the rescuer terminal includes image data for displaying an image showing the rescue route on the rescuer terminal. An information processing system,
A base station provided with a plurality of adjacent antennas provided at a predetermined position of the building;
A rescueee terminal for locating his / her current position based on a phase difference between the radio signals transmitted from each of the antennas to be carried by the rescuer;
A portable terminal that locates its current position based on the phase difference of the radio signals transmitted from each of the antennas to be carried by a rescuer,
A server device connected to be communicable with the base station, the rescuer terminal, and the rescuer terminal is provided,
The rescuer terminal transmits a current position of the rescuer to the server device,
The rescuer terminal transmits the current position of the rescuer to the server device,
The server device
A path from the rescuer to the rescuer is received based on the received current location of the rescuer and the current location of the rescuer by receiving the current location of the rescuer and the current location of the rescuer. Create a rescue route,
Send the information indicating the generated rescue route to the rescuer terminal,
When the rescuer terminal receives the information, it outputs information for guiding the rescue route ,
The server device
Storing a plurality of evacuation routes corresponding to the current position of the rescued person,
When receiving the current position of the rescued person, obtain the evacuation route corresponding to the received current position of the rescued person,
Sending the acquired information indicating the evacuation route to the rescuer terminal;
Sending information indicating the evacuation route to the rescuer terminal;
The rescuer terminal, when receiving information indicating the evacuation route, outputs information for guiding the evacuation route,
When the rescuer terminal receives information indicating the evacuation route, the rescuer terminal outputs information indicating the evacuation route . The information processing system according to claim 5 ,
The server device
Obtain the location of the disaster occurrence site in the building,
The rescue route is received so that the current location of the rescuer and the current location of the rescuer are received, and the current location of the rescuer and the current location of the rescuer are not passed through the disaster occurrence site. Produces
An information processing system, wherein information indicating the generated rescue route is transmitted to the rescuer terminal. The information processing system according to claim 5 ,
Including a plurality of rescuer terminals carried by a plurality of rescuers,
The server device
Obtaining the current location for each sent from each of the rescuer terminals;
A path from the rescuer to the rescuer is received based on the received current location of the rescuer and the current location of the rescuer by receiving the current location of the rescuer and the current location of the rescuer. Create a rescue route,
Send the information indicating the generated rescue route and the information indicating the current position of the other rescuer to the rescuer terminal,
When the information is received, the rescuer terminal outputs information for guiding the rescue route and information indicating the current position of the other rescuer. The information processing system according to claim 5 ,
The information transmitted from the server device to the rescuer terminal includes image data for displaying an image indicating the rescue route on the rescuer terminal.

Images