JP2017116618A - Information processing device, information processing system, and control method and program thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism capable of setting a measurement area at an appropriate position on a map.SOLUTION: A walking area being an area where pedestrians can walk on a map is specified S605, control for generating division areas obtained by dividing an area on the map is performed S608, whether the division areas generated by the control overlaps the walking area is determined S615, and in the division areas determined to overlap the walking area is determined as a measurement area being an area for measuring the number of pedestrians in each prescribed time in the case of making the pedestrians walk in the walking area S616.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an information processing apparatus, an information processing system, a control method thereof, and a program.

  There is a mechanism for placing an evacuee (pedestrian) icon in a building on a map and performing an evacuation simulation in which an icon is moved toward an evacuation site assuming that a disaster has occurred.

  Cited Document 1 describes that in the evacuation simulation, the density for each area is calculated for each evacuee's time, and the moving speed of the evacuee decreases as the evacuee becomes denser, for example.

JP 2014-023548 A

  In order to measure the density of evacuees, for example, it is necessary to set a measurement area that is an area for measuring the density of evacuees on a map used for an evacuation simulation. If the measurement area is spread over the entire surface of the map, for example, the measurement area may be arranged at a position where the evacuees cannot pass, and the density measurement process may be performed wastefully. That is, an unnecessary processing load increases.

  Although it is conceivable for the user to manually set the measurement area at an arbitrary position, particularly when there are many places where the measurement area is desired to be arranged, the operation of arranging the measurement area is troublesome for the user.

  An object of this invention is to provide the structure which can set a measurement area | region to the appropriate position on a map.

  The information processing apparatus according to the present invention includes a walking region specifying unit that specifies a walking region that is a region where a pedestrian can walk on a map, and divided region generation control that performs control to generate a divided region obtained by dividing the region on the map. Means for determining whether the divided area generated by the divided area generation control means overlaps the walking area, and the divided area determined by the determining means as overlapping the walking area, And determining means for determining as a measurement area which is an area for measuring the number of pedestrians per predetermined time when a pedestrian is caused to walk.

  ADVANTAGE OF THE INVENTION According to this invention, the mechanism which can set a measurement area | region to the appropriate position on a map can be provided.

It is a figure explaining the outline | summary of the function of information processing apparatus. It is a figure which shows an example of the hardware constitutions etc. of an information processing apparatus. It is a figure which shows an example of a function structure of information processing apparatus. It is a figure which shows an example of a structure of a map. It is a figure which shows an example of a structure of various data. It is a flowchart which shows the flow of the determination process of a measurement area. It is a figure which shows an example of the screen which displayed the map in CAD software. It is a figure which shows an example of the mode of the object of the walk area | region on a map. It is a figure which shows an example of the mode of the setting of the measurement area | region on a map. It is a flowchart which shows the flow of the measurement process accompanying simulation. It is a flowchart which shows the flow of the determination process of a measurement area | region using the movement history of a pedestrian. It is a figure which shows an example of the mode of the setting of the measurement area | region on a map using the movement history of a pedestrian. It is a figure which shows an example of the mode of the setting of the measurement area | region on a map using the movement history of a pedestrian. It is a figure which shows an example of the system configuration | structure of an information processing system.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 is a diagram for explaining an overview of functions of the information processing apparatus 100. The information processing apparatus 100 is an information processing apparatus such as a personal computer (PC).

  The information processing apparatus 100 includes CAD software 110 (CAD unit) and evacuation simulation software 120 (evacuation simulation unit) that functions as a plug-in of the CAD software 110. In the present embodiment, the information processing apparatus 100 is a PC, and the CAD software 110 is 3D CAD application software installed in the information processing apparatus. The evacuation simulation software 120 is software (evacuation simulation tool) that functions as a plug-in of CAD application software.

  The evacuation simulation software 120 includes a simulation engine. By using the simulation engine, it is assumed that a disaster has occurred, and icons of pedestrians placed on a map created by the CAD software 110 are displayed as evacuation places (destinations). The simulation process to evacuate is performed. More specifically, the evacuation simulation software 120 advances the simulation time at regular intervals, and performs a simulation process for moving the pedestrian toward the evacuation site as time passes. The evacuation simulation software 120 can perform an evacuation simulation assuming various disasters. For example, the evacuation simulation software 120 can perform an evacuation simulation assuming the occurrence of water disasters such as tsunami, flood, river flooding, fire, earth and sand disasters.

  In this embodiment, based on the position of the icon of the evacuees (pedestrians) to be evacuated for each predetermined time, walking a measurement area that is an area on the map for measuring the number of the pedestrians every predetermined time. A process of arranging at a position of a walking area where a person can walk is performed. The above is the description of FIG.

  Next, an example of the hardware configuration of the information processing apparatus 100 in the embodiment of the present invention will be described with reference to FIG. The information processing apparatus 100 includes a CPU 201, a ROM 202, a RAM 203, an input controller 205, a video controller 206, a memory controller 207, and a communication I / F controller 208. The CPU 201, ROM 202, RAM 203, input controller 205, video controller 206, memory controller 207, and communication I / F controller 208 are connected to each other via a system bus 204.

  The CPU 201 is a central processing unit that controls each device and controller connected via the system bus 204. The ROM 202 is a storage device that stores various programs such as BIOS (Basic Input / Output System) that is a control program of the CPU 201, various data, and the like.

  A RAM 203 is a storage device that functions as a main memory, work area, and the like of the CPU 201. The CPU 201 implements various operations by loading a program or the like necessary for executing the processing from the ROM 202 or the external memory 211 to the RAM 203 and executing the loaded program.

  The input controller 205 is a controller that controls input from the input device 209. The input device 209 is an input device such as a pointing device such as a keyboard (KB) or a mouse. The video controller 206 is a controller that controls display on the display device 210. The display device 210 is a display device such as a CRT display (CRT). The display device 210 may be other display devices such as a liquid crystal display as well as a CRT.

  The memory controller 207 is a controller that controls access to the external memory 211. The external memory 211 is a storage device such as a hard disk (HD) or a flexible disk (FD) that stores an operating system program (hereinafter referred to as OS), various setting information, and the like. The external memory 211 stores a boot program, various application programs, font data, user files, editing files, various data, and the like. The memory controller 207 can also control access to the external memory 211 such as a flash memory type memory card connected to the PCMCIA card slot via an adapter.

  The communication I / F controller 208 is a controller used for connection / communication with an external device via a network such as a LAN or the Internet, and executes communication processing via the network. The communication I / F controller 208 can communicate with an external device using TCP / IP, for example.

  The CPU 201 enables display on the display device 210 by executing outline font rasterization processing on a display information area in the RAM 203, for example. Further, the CPU 201 can accept a user instruction via a mouse cursor or the like on the display device 210.

  Although various programs for realizing the processing of the present embodiment are stored in the external memory 211, they may be stored in the ROM 202. In addition, the definition file and various information tables used when executing the program are stored in the external memory 211, but may be stored in the ROM 202.

  The display device 210 is an example of an output unit that displays and outputs an object generated by the CAD software 110 in response to an instruction from the evacuation simulation software 120 (for example, a new road object that connects a building and a road). The above is the description of FIG.

  When the CPU 201 executes a process based on a program stored in the ROM 202 or the external memory 211, the function of the information processing apparatus 100 described later with reference to FIG.

  FIG. 3 is a diagram illustrating an example of a functional configuration of the information processing apparatus 100. The information processing apparatus 100 includes CAD software 110 (CAD section) and evacuation simulation software 120 (evacuation simulation section).

  The map data reading unit 311 reads map data. In the present embodiment, the map data reading unit 311 reads map data stored in the external memory 211 from the external memory 211, but may read from the ROM 202 or an external server. In the present embodiment, the map data reading unit 311 has map coordinates and reads map data that is a set of information on objects arranged on the map. As shown in the object information 500 of FIG. 5, the object is given an attribute indicating what the object is. The object information 500 stores an ID, which is object identification information, an object vertex coordinate (x, y coordinate), and an attribute in association with each other. The attributes are, for example, roads, buildings, obstacles, walking areas, and the like. The area indicated by the object to which the attribute of the walking area is given indicates that the pedestrian (evacuee) can walk in the evacuation simulation. An object to which a building attribute is assigned indicates a building. An object to which a road attribute is assigned indicates a road. An object to which an attribute of an obstacle is given indicates an obstacle that defines an area where a pedestrian cannot pass. When objects in the walking area are in contact with each other or overlapping, the pedestrian can freely move between the objects in contact with or overlapping each other. FIG. 8 shows a state of the object shown in the object information 500 of FIG. 5 on the map. In FIG. 8, Ob000X and Ob000Y are objects of the walking area, and are areas where pedestrians can freely come and go. Ob000Z is an obstacle object, and a pedestrian cannot move Ob000Z.

  The map data reading unit 311 displays a map on the display device 210 by generating and displaying a line segment connecting the vertices on the screen based on the vertex coordinates of the object included in the read map data. FIG. 4A is a diagram illustrating an example of a map displayed by the map data reading unit 311 and illustrates a stadium map. FIG. 4B shows a map in which a part of the spectator seat of the stadium is enlarged.

  The object information storage unit 312 is a storage unit that stores objects arranged on the map read by the map data reading unit 311 and objects newly arranged.

  The mesh generation instruction receiving unit 313 receives from the mesh generation instruction unit 322 an instruction to generate a mesh (divided region) that divides a region on the map. The mesh is a kind of object. The mesh generation unit 314 generates (places) a mesh object on the map in accordance with the instruction received by the mesh generation instruction reception unit 313. Further, the generated mesh information (shown in the mesh information 510 in FIG. 5) is stored in the object information storage unit 312.

  The mesh information 510 includes an object ID which is mesh identification information, mesh vertex coordinates, and mesh attributes. The attribute is assigned by an attribute assigning unit 316 described later.

  The object attribute acquisition unit 321 acquires the object information 500 of the map data read by the CAD software 110 using the API of the CAD software 110. The walking area determination unit 323 is a determination unit that sequentially determines whether or not the mesh instructed by the mesh generation instruction unit 322 overlaps the object in the walking area.

  The attribute assignment instruction unit 324 is an instruction unit that instructs the mesh that has been determined to overlap the walking region by the walking region determination unit 323 to add the attribute of the measurement region.

  The measurement area is an area indicated by the mesh to which the attribute of the measurement area is given, and is used for measuring and storing how many pedestrians (how many pedestrian icons) exist in the mesh at a certain time. , Is an area on the map.

  The attribute assignment instruction accepting unit 315 accepts an instruction from the attribute assignment instruction unit 324, and the attribute assignment unit 316 is a processing unit that assigns the attribute of the measurement region to the instructed mesh.

  The simulation execution unit 325 is a processing unit that executes a simulation for evacuating a pedestrian icon to an evacuation destination. The measurement information storage unit 326 is a storage unit that measures and stores how many pedestrians exist in the measurement region at predetermined time intervals. Note that the predetermined time does not necessarily need to be an actual time. For example, the simulation time may elapse for one minute during one second in the actual time. The predetermined time here is, for example, a simulation time. The above is the description of FIG.

  An example of measurement result information is shown as measurement information 550 in FIG. In the measurement information 550, the object ID is an ID of a mesh having an attribute of the measurement area, and indicates how many pedestrians exist in the mesh (mesh of the measurement area) every predetermined time. For example, according to 550 in FIG. 5, there is no pedestrian in the measurement area of Ob0001 at the time of 5 seconds and 10 seconds after the start of the simulation. It shows that there are three pedestrians in the measurement area of Ob0001 at the time point 15 seconds after the start of the simulation.

  Next, with reference to FIG. 6, the flow of the measurement region determination process in the embodiment of the present invention will be described.

  Hereinafter, it is assumed that the CPU 201 of the information processing apparatus 100 executes the processing shown in each step of each flowchart to be described using the functions of the CAD software 110 or the evacuation simulation software 120.

  In step S <b> 601, the CAD software 110 is activated in response to an operation by the user via the input device 209.

  In step S <b> 602, the CAD software 110 reads map data from the external memory 211 or the like according to an operation by the user via the input device 209, and develops and stores the read map data information on the RAM 203. Then, the CAD software 110 displays a map corresponding to the map data stored on the RAM 203 in the display screen of the CAD software 110 displayed on the display device 210. For example, as shown by 700 in FIG. 7, a map is displayed on a window displayed by CAD software.

  FIG. 7A is a view showing a display screen 700 which is an example of a screen displayed on the display device 210 by the CAD software 110. In S602, the CAD software 110 reads a CAD file as map data, which is a set of object information to which attribute information (information indicating that the object is a building, a road, or the like) is assigned. For example, the object information 500 in FIG. 5 is read.

  In step S <b> 603, the CAD software 110 activates the evacuation simulation software 120 in response to a user operation via the input device 209. The CAD software 110 may instruct the evacuation simulation software 120 that has already been activated to display the setting screen of the evacuation simulation software 120 in accordance with a user operation via the input device 209.

  In S604, the evacuation simulation software 120 is activated by the activation instruction from the CAD software 110 in S603, and displays the setting screen of the evacuation simulation software 120 on the display screen displayed by the CAD software 110. If the evacuation simulation software 120 has already been activated, the setting screen of the evacuation simulation software 120 is displayed on the display screen on which the CAD software 110 is displayed according to the setting screen display instruction from the CAD software 110 in S603. It is good also as displaying on.

  FIG. 7B is a diagram illustrating a state in which the setting screen 720 of the evacuation simulation software 120 is displayed on the display screen 700. When “evacuation simulation” is selected on the selection screen 710 on the display screen 700 in step S <b> 603, the CAD software 110 issues an activation instruction to the evacuation simulation software 120. Then, the evacuation simulation software 120 that has received the activation instruction displays a setting screen 720 in S604.

  In step S <b> 605, the evacuation simulation software 120 issues an instruction to arrange the measurement area at the position of the object in the walking area on the map based on the screen displayed on the display device 210 or the user's operation via the input device 209. Accept. For example, the evacuation simulation software 120 accepts an instruction to place a measurement area by accepting selection of a “measurement area placement” button on the setting screen 720 based on a user operation via the input device 209. The measurement area placement instruction is, for example, an instruction to generate an object (mesh indicating a measurement area) having a measurement area attribute at a position overlapping a region indicated by an object having a walking area attribute on the map.

  In S606, the evacuation simulation software 120 instructs the CAD software 110 using the API of the CAD software 110 to generate a mesh object on the map based on the measurement area arrangement instruction received in S605 (division). An example of area generation control means). For example, it is assumed that the shape and size of the mesh are stored in the external memory 211 in advance. Here, it is assumed that the square is a 2m square. Further, the evacuation simulation software 120 determines the mesh creation position and instructs the CAD software in S606. For example, as shown in FIG. 9A from the upper left corner of the map toward the right, the vertex coordinates of the mesh to be written are specified in order so as to spread the mesh on the map, and the result is shown at 510 in FIG. Such information is generated in the memory, and the CAD software 110 is instructed to generate meshes having the vertex coordinates until the meshes are arranged in all areas on the map.

  In step S607, the CAD software 110 receives the mesh generation instruction performed in step S606. Then, based on the value of the vertex coordinates of each mesh included in the generation instruction, a new mesh object is generated (on the map) and stored. For example, the same information as 510 is generated and stored on the memory. Then, the generated mesh information is displayed on the display screen. For example, the map data of FIG. 9A is displayed in the CAD software 110 window as shown in FIG.

  The CAD software 110 notifies the evacuation simulation software 120 that the generation of the mesh has been completed, and the evacuation simulation software 120 that has been notified that the generation of the mesh has been completed, uses the API included in the CAD software 110 in S609. By using this, the CAD software 110 is requested for map data (object information 500) opened by the CAD software 110 (developed on the memory).

  In S610, the CAD software 110 accepts the request, and transmits the requested map data to the evacuation simulation software 120 in S611. Here, it is assumed that the object information 500 of FIG. 5 being developed on the memory is transmitted.

  In S612, the evacuation simulation software 120 receives the object information 500 transmitted in S611 and stores it in the RAM 203 or the like. In this embodiment, the evacuation simulation software 120 receives the object information 500 from the CAD software 110. However, when the object information 500 is stored in the external memory 211 or the like, the API of the CAD software 110 is used, for example. The file name of the map information (object information) developed and displayed by the CAD software 110 and the file storage location are requested and acquired from the CAD software 110, and the external memory 211 or the like is directly obtained according to the file name and the file storage location. The object information 500 may be acquired from the storage device. Further, when the object information 500 is stored in an external server or the like, the evacuation simulation software 120 may acquire the object information 500 from the external server or the like.

  In S613, the evacuation simulation software 120 executes and applies the processes of S614 to S616 to all meshes to which S614 to S616 are not applied among the meshes instructed to generate in S606.

  In S614, the evacuation simulation software 120 acquires one mesh to which S614 to S616 are not applied. Then, an object having the attribute of the walking area is specified in the object information 500 (an example of the walking area specifying means), and the mesh acquired in S614 in S615 is the walking area among the objects received and stored in S612. It is determined whether the object overlaps with any of the objects having the attribute.

  If it is determined that they do not overlap, the process proceeds to S617. If it is determined that the mesh overlaps, the process proceeds to S616, and the mesh object ID is assigned to the mesh determined to overlap the object having the walk area attribute. An attribute assignment instruction including the above is transmitted to the CAD software 110 (using an API of the CAD software 110) (an example of attribute assignment control means).

  In step S618, the CAD software 110 receives the measurement region attribute assignment instruction transmitted in step S616. In step S619, the CAD software 110 performs processing for assigning and storing the measurement region attribute to the designated mesh. In addition, when the storage process is completed, information indicating that the measurement area attribute assignment process for the target mesh is completed is transmitted to the evacuation simulation software 120, and information indicating that the attribute assignment process is completed is transmitted. The accepted evacuation simulation software 120 writes the value of the measurement area to the attribute value of the target mesh in the mesh information 510 developed by the own software on the memory.

  In S617, the evacuation simulation software 120 determines whether or not the processing of S614 to S616 has been executed for all meshes. If it has been executed, the processing of FIG. , The process proceeds to S614 to obtain a new unprocessed mesh. The above is the description of FIG.

  6, for example, among the meshes shown in FIG. 9A, a mesh that overlaps the walking region can be changed and set to a mesh in the measurement region as shown in FIG. 9B.

  In S616, the evacuation simulation software 120 may transmit an instruction for identifying and displaying the mesh to which the attribute of the measurement area is added together with the instruction to give the attribute of the measurement area to the mesh. For example, an instruction is given to set the target mesh color to a predetermined color (eg, red) (an example of an identification display control unit). The CAD software 110 receives the instruction, changes the color of the mesh to which the attribute of the measurement region is assigned in S619 to red, and displays it on the display screen as shown in FIG. 8B, for example. That is, the measurement area and the mesh that is not so are identified and displayed.

  This identification display allows the user to easily confirm which mesh has become the measurement region.

  The identification display method is not limited to color change. For example, the mesh border may be changed to a predetermined thickness. Further, for example, after setting the measurement region for all meshes or applying the country determination process (eg, S615), a mesh to which no measurement region attribute is assigned may be deleted. Further, the color of the mesh to which the attribute of the measurement area is not given may be changed as shown in FIG.

  According to the processing of FIG. 6, an object is to provide a mechanism that can set a measurement region at an appropriate position on a map.

  For example, it can arrange | position so that a measurement area | region may be spread only with respect to the area | region where a pedestrian can walk. Therefore, it is possible to reduce the trouble of the user manually selecting the arrangement position of the measurement region.

<Second Embodiment>
Hereinafter, the second embodiment will be described with reference to FIGS. Note that a description of processes common to the first embodiment will be omitted.

  In the second embodiment, after executing the evacuation simulation once, the measurement areas are arranged based on the results of the evacuation simulation. For example, only the mesh on the route through which the pedestrian icon actually passes is set as the measurement region. By placing the measurement area in the area on the route that pedestrians actually use, the creation of unnecessary measurement areas is prevented, and the processing load of measurement processing that occurs when performing measurement processing in unnecessary measurement areas Can be reduced.

  First, with reference to FIG. 10, the flow of measurement processing accompanying simulation in the embodiment of the present invention will be described.

  The evacuation simulation software 120 is activated in S604 of FIG. 6, and executes an operation after S1002 when an evacuation simulation execution operation is accepted in S1001. For example, when a press operation of the “execute” button in 720 of FIG. 7 is received, the processing of S1002 is executed.

  In S <b> 1002, the evacuation simulation software 120 requests the CAD software 110 for information on the pedestrian icons arranged on the map data being developed by the CAD software 110 using the API of the CAD software 110. A pedestrian icon is an object that moves on a map toward an evacuation destination as a pedestrian (refugee) during an evacuation simulation. The pedestrian icon information is information on an object with a pedestrian attribute identified by an object ID, for example, as shown in pedestrian icon information 520 in FIG. In this embodiment, since the pedestrian icon is circular, the coordinate value of the pedestrian icon indicates the coordinate of the center point of the pedestrian icon. The size of the pedestrian icon is assumed to be 1 m in diameter. In addition, it is assumed that information on the moving speed of the pedestrian is stored in the pedestrian icon. The pedestrian icon information 520 is assumed to be included in the CAD file read in S602.

  In S1003, the CAD software 110 receives the request for pedestrian icon information in S1002, and transmits the requested pedestrian icon information to the evacuation simulation software 120 in S1004. Here, it is assumed that pedestrian icon information 520 in FIG. 5 is transmitted.

  In S1005, the evacuation simulation software 120 receives the pedestrian icon information 520 and stores it on the RAM.

  In S1006, an empty process applied list is generated to store the IDs of the pedestrian icons to which the processes of S1007 to S1010 have been applied on the RAM, and the processes of S1007 to S1010 are applied to all unapplied pedestrian icons. On the other hand, the processes of S1007 to S1010 are applied and executed.

  In S1007, the evacuation simulation software 120 acquires one piece of pedestrian icon information, and in S1008 identifies the current position and moving speed of the pedestrian icon. The current position of the pedestrian icon is assumed to be the initial position immediately after the simulation is started, that is, the position indicated by the coordinates of the pedestrian icon information 520.

  In S <b> 1009, the evacuation simulation software 120 determines and moves the next location (movement destination location) of the acquired pedestrian icon. For example, the position of the pedestrian icon after 1 second on the line indicating the route to the destination derived from the information coordinates of the destination is calculated from the information on the moving speed of the pedestrian icon, and walking to the calculated position is performed. Move the worker icon. Then, the moved position and the moved time (information indicating how many seconds after the start of the simulation) are output and stored as movement history information of the pedestrian icon on the external memory 211. For example, information on the walking history 530 shown in FIG. 5 is stored (an example of history storage means). The walking history 530 includes an object ID, which is identification information of a pedestrian icon, and information indicating which coordinate (x, y coordinate) is moved to after how many seconds after the simulation is started. Here, “after 1 second” means a time in the simulation.

  In S1010, the evacuation simulation software 120 stores the ID of the pedestrian icon to which the process of S1009 is applied in the process applied list on the RAM. Then, it is determined whether or not the processing of S1007 to S1009 has been applied to all pedestrian icons, and if not applied, the processing proceeds to S1007. If it has been applied, all the values in the processing applied list on the RAM are erased (cleared), and the process proceeds to S1011.

  In S1011, it is determined whether it is the measurement time of the position of the pedestrian icon using the measurement area. It is assumed that the measurement time information is stored in advance in the external memory 211 of the information processing apparatus 100 and can be freely set and changed according to a user operation on an operation screen (not shown) of the evacuation simulation software 120. In this embodiment, as indicated by reference numeral 560 in FIG. 5, the measurement time is assumed to come every 5 seconds after the simulation starts. That is, for example, in S1011, it is determined that the measurement time has been reached in 5 seconds after the start of the simulation. If the measurement time has been reached, the process proceeds to S1012. If the measurement time has not been reached, the process proceeds to S1014. In addition, 5 seconds here means the time which flows within a simulation.

  In S1012, the evacuation simulation software 120 applies the processes of S1013 and S1014 to the mesh having the attribute of the measurement area to which the processes of S1013 and S1014 are not applied.

  In S1013, the evacuation simulation software 120 acquires one mesh of the measurement area. (After acquiring the mesh from the mesh information 510, it is determined whether the mesh has the attribute of the measurement region. If the mesh has the attribute of the measurement region, the mesh is acquired (specified) as the mesh of the measurement region).

  In S1014, the evacuation simulation software 120 refers to the walking history 530 of all pedestrians, and the measurement time determined to have reached in S1011 within the mesh area acquired in S1013 (for example, 5 seconds after the simulation starts) ) Is specified (calculated) and stored in the external memory 211. For example, as shown in the measurement information 550, the measurement time is determined to be reached in S 1011 in association with the mesh ID, and is located in the mesh (mesh in the measurement region) at the time of the measurement time. Memorize the number of pedestrian icons.

  In S1015, the evacuation simulation software 120 determines whether or not the processes of S1013 and S1014 have been applied to the meshes of all measurement regions, and proceeds to S1016 if they have been applied. If not applied, the process proceeds to S1013.

  In S1016, the evacuation simulation software 120 determines whether the simulation end time has come. In the evacuation simulation of the present embodiment, it is assumed that the simulation end time is determined such that the simulation is performed until n minutes later in the simulation time. It is assumed that the end time information is stored in advance in the external memory 211, and in the present embodiment, for example, it is assumed that it is one hour after the start of the simulation. If the end time is reached, the process ends. If the end time has not been reached, the process proceeds to S1006. The above is the description of FIG.

  Next, with reference to FIG. 11, the flow of the measurement region determination process using the pedestrian movement history will be described.

  The evacuation simulation software 120 starts the process of S1101 after executing the processes up to S608. In S <b> 1101, the evacuation simulation software 120 acquires the walking history 530 stored in the external memory 211. For example, the pedestrian icon information 520 arranged on the map data being developed in the CAD software 110 is acquired, and the walking history 530 of all the pedestrian icons in the pedestrian icon information 520 is acquired.

  In S1102, the evacuation simulation software 120 applies the process of S1103 to all the pedestrian icons acquired in S1101.

  In S1103, the evacuation simulation software 120 acquires one walking history of the pedestrian icon, and generates and stores a virtual object in which the coordinates for each predetermined time indicated by the walking history are connected by a line segment on the RAM. For example, as illustrated in 1201 to 1203 in FIG. 12A, information on a moving route indicating how the pedestrian icon has moved to the destination is generated.

  In S1104, the evacuation simulation software 120 determines whether all pedestrian icon routes have been specified / generated. If all pedestrian icon routes have been specified / generated, the process proceeds to S1105. If there is an unprocessed pedestrian icon, the process proceeds to S1103 to acquire a new pedestrian icon and execute the process.

  In S1105, the evacuation simulation software 120 acquires the mesh information 510 generated on the map being developed as a CAD file, and performs processing in S1106 to S1108 in the mesh information 510 for all meshes to which the processing has not been applied. The process of S1108 is applied.

  In S1106, the evacuation simulation software 120 acquires one mesh to which the process is not applied, and in S1107, determines whether it overlaps with any of the routes generated in S1103. That is, as a result of the evacuation simulation, it is determined whether or not the mesh is actually at the position where the pedestrian has passed (an example of the divided area specifying means).

  If the mesh is not on the moving route of the pedestrian icon, the process proceeds to S1109. If the mesh is on the moving route of the pedestrian icon, the process proceeds to S1108.

  In S <b> 1108, the evacuation simulation software 120 instructs the CAD software 110 using the API of the CAD software 110 to give the attribute information of the measurement area to the mesh determined to be at the position overlapping the movement route of the pedestrian icon. . The CAD software 110 accepts the instruction, adds the attribute information of the measurement area to the instructed mesh, and stores it. The above is the description of FIG.

  In S1108, the evacuation simulation software 120 may transmit an instruction for identifying and displaying the mesh to which the attribute of the measurement area is added together with the instruction to give the attribute of the measurement area to the mesh. For example, an instruction is given to set the target mesh color to a predetermined color (eg, red). The CAD software 110 receives the instruction, changes the color of the mesh to which the attribute of the measurement region is assigned to red, and displays it on the display screen, for example, as shown in FIGS. That is, the measurement area and the mesh that is not so are identified and displayed.

  This identification display allows the user to easily confirm which mesh has become the measurement region.

  FIG. 12B shows an example of a map in which a mesh on the moving route of the pedestrian icon is used as a measurement region based on the walking history. Further, FIG. 12C shows an example of a map in which, for all the meshes, it is determined whether or not there is a mesh on the moving route of the pedestrian icon and the measurement area is determined and arranged.

  FIG. 13B applies, for example, the process shown in FIG. 11 to the map shown in FIG. 13A to determine whether all the meshes overlap the moving route, and measure the mesh overlapping the moving route. It is a figure which shows an example of the map which the process made into an area | region was completed. In FIG. 13B, only a few moving routes are shown, but these are only shown as an example of a number of moving routes. There is a moving route for each, and a mesh that overlaps any one of the moving routes is used as a measurement region.

  In the description of the second embodiment described above (description of FIG. 10), after moving the pedestrian icon, it is determined whether it is the measurement time, and the number of pedestrian icons on each measurement region is determined. For example, the evacuation simulation software 120 may perform the processing of S1006 to S1010 and the processing of S1011 to S1015 in parallel after S1005.

  According to the second embodiment, after executing the evacuation simulation once, the measurement areas can be arranged based on the results of the evacuation simulation.

  For example, only the mesh on the route through which the pedestrian icon actually passes can be set as the measurement region.

  For example, the measurement area may be arranged after an evacuation simulation is actually performed and the simulation is appropriately performed. According to the second embodiment, the measurement area is arranged so as to be limited to the area on the route that is actually used by the pedestrian, thereby preventing creation of an unnecessary measurement area and performing measurement processing in the unnecessary measurement area. Therefore, it is possible to reduce the processing load of the measurement processing that occurs.

  In addition, when performing an evacuation simulation using a large map, it is possible to prevent a situation in which measurement takes too much time because there are too many measurement areas. For example, when a evacuation simulation of a spectator is performed on a stadium map (because there are no spectators on the ground), measurement areas are not arranged on the ground, and as a result, the number of measurement areas and the number of measurement processes are greatly reduced. be able to. This is one example in which the wider the map, the more areas where the pedestrian does not actually move.

  On the other hand, when the map is small, it is considered that the pedestrian moves in most areas on the map. For example, information on the threshold value of a predetermined map size is stored in the external memory 211 in advance and immediately before S1101. In addition, the CAD software 110 is requested to acquire the size (size / size) of the map opened by the CAD software 110, and if the acquired map size is greater than or equal to the threshold value, the processing after S1101 is executed. If the value is below (smaller) than the threshold value, the CAD software 110 may be instructed to assign the attribute of the measurement region to all meshes. This makes it possible to arrange and set appropriate measurement areas according to the size of the map.

  As described above, according to the present invention, the measurement region can be set at an appropriate position on the map.

<Other embodiments>

  In the above-described embodiment, the measurement information 550 is stored as information on how many pedestrians are on each measurement area for each predetermined time. For example, for a predetermined time (for example, for 5 seconds) Between the number of pedestrian icons in each measurement area (how many pedestrian icons have passed) are calculated based on the information of the walking history 530 and stored as measurement results (measurement information). Also good.

  In the above-described embodiment, the object information 500, the mesh information 510, and the pedestrian icon information 520 are described as being managed in separate tables. These pieces of information may be managed by one table.

  In the above-described embodiment, the evacuation simulation software 120 requests and receives all the information of the object information 500 regardless of the attributes in S609, and selects objects in the pedestrian area. For example, in S609, the evacuation simulation software 120 requests the CAD software 110 only for objects having the attribute of the pedestrian area, and the CAD software 110 generates a list of only the objects having the attribute of the pedestrian area in response to the instruction. Then, the object information 500 may be transmitted to the evacuation simulation software 120, and the evacuation simulation software 120 may store the object information 500.

  In the second embodiment described above, the evacuation simulation software 120 generates a virtual object indicating the movement route of the pedestrian on the RAM. For example, the movement route of the pedestrian specified in S1103 is used. The CAD software 110 is instructed to generate the coordinate value for each predetermined time and the line segment connecting the coordinate values in order of time as an object on the map (instructed by using the API of the CAD software 110 / route object generation control means) For example, the CAD software 110 that has received the instruction connects the respective coordinate locations on the map by time segments according to the coordinate values for each predetermined time indicating the movement route of the pedestrian included in the instruction. (A) 1201 to 1203 of root objects (objects having a moving route value as an attribute) are generated. Unishi may be. In this case, it is assumed that the evacuation simulation software 120 determines in S1107 whether one of the mesh and the route object overlaps.

  The present invention can be implemented as, for example, a system, apparatus, method, program, storage medium, or the like. Specifically, the present invention may be implemented as a system including a plurality of devices, or a single device. You may implement as an apparatus which consists of.

  For example, the present invention can be implemented as the following information processing system. That is, a server that receives an execution instruction of a simulation process from an external device, executes a simulation, transmits an execution result to an instruction source, and an information processing apparatus that instructs the server to execute the simulation process and receives the execution result. It can be implemented as an information processing system.

  FIG. 14 is an example of a system configuration of the information processing system. The information processing system includes a server 200 and an information processing apparatus 100 that are connected to each other via a network (for example, a LAN). In FIG. 14, the information processing apparatus 100 is assumed to be a single unit, but may be a system including a plurality of information processing apparatuses. Further, the server 200 is assumed to be a single unit, but may be a system including a plurality of servers. The hardware configuration of the server 200 is the same as that in FIG. The functional configuration of the server 200 in 1400 is the same as that in FIG.

  The CPU of the server 200 executes the processing based on the program stored in the ROM or the external memory of the server 200, thereby realizing the functions of FIG. 3 and the processing of the flowcharts of the respective drawings described above.

  For example, the information processing apparatus 100 that is a client apparatus accesses the server 200, and the screen information of the CAD software 110 and the evacuation simulation software 120 activated on the server 200 (screen information created by the server 200) It is acquired from the server 200 and displayed on the display screen as html information that can be displayed by 100 browser software or the like. The map information shown in each figure is displayed on the display screen of the information processing apparatus 100 by the same method. In addition, mesh generation, determination of whether the mesh overlaps the walking area, attribute of the measurement area to the mesh, measurement of the number of pedestrians on the measurement area every predetermined time, mesh overlaps the pedestrian movement route The determination process and the like are executed by the CAD software 110 and the evacuation simulation software 120 of the server 200.

  When the server 200 is a system including a plurality of information processing apparatuses, the CPU of each information processing apparatus included in the server 200 performs processing in cooperation based on a program stored in the ROM or external memory of each information processing apparatus. By executing, the function of FIG. 3 is realized. Further, the processing of the flowcharts of the respective drawings described above is realized.

  Further, for example, as shown in 1410, when the CAD software 110 is installed in the information processing apparatus 100 and the evacuation simulation software 120 is installed in the server 200, the information processing apparatus 100 performs the function of each software in each of the flowcharts described above. It is assumed that the processing executed by each device communicates each time and is executed using the software function installed in each device. In this case, it is assumed that the various types of information shown in FIG. 5 are stored in both the information processing apparatus 100 and the server 200, and each time one of the apparatuses updates the data, the various types of data in FIG. Shall be taken.

  The present invention includes a software program that realizes the functions of the above-described embodiments directly or remotely from a system or apparatus. Then, it may be achieved by a CPU included in the system or apparatus reading and executing the supplied program code.

  Accordingly, the program code itself installed in the computer in order to realize the functions and processes of the present invention by the computer also realizes the present invention. That is, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  Examples of the recording medium for supplying the program include a flexible disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, and CD-RW. As a recording medium for supplying the program, there are a magnetic tape, a nonvolatile memory card, a ROM, a DVD (DVD-ROM, DVD-R), and the like.

  As other program supply methods, there are the following methods. That is, it is a method of connecting to a homepage on the Internet using a browser of a client computer and downloading the computer program of the present invention from the connected homepage to a recording medium such as a hard disk. Further, the present invention is a method for downloading a compressed file including an automatic installation function of the computer program of the present invention from a connected home page.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let me. It is also possible to execute the encrypted program by using the downloaded key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. In addition, based on the instructions of the program, the OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can be realized by the processing.

  Furthermore, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto.
That is, the present invention can be implemented in various forms without departing from the technical idea or the main features thereof.

100 Information processing device 110 CAD software 120 Evacuation simulation software

Claims (9)

A walking region specifying means for specifying a walking region that is a region where a pedestrian can walk on a map;
A divided region generation control means for performing control to generate a divided region obtained by dividing the region on the map;
A determination unit that determines whether the divided region generated by the divided region generation control unit and the walking region overlap;
The divided area determined to overlap the walking area by the determining means is determined as a measurement area that is an area for measuring the number of pedestrians per predetermined time when the walking area is caused to walk by a pedestrian. A decision means to
An information processing apparatus comprising: Attribute assignment control means for performing control to give an attribute indicating that the divided area is a measurement area to the divided area determined as the measurement area by the determination means;
Measuring means for measuring the number of pedestrians per predetermined time when the pedestrian is made to walk the walking area with respect to the divided area to which the attribute indicating that it is a measurement area is given by the attribute giving control means; ,
The information processing apparatus according to claim 1, further comprising: A simulation execution means for performing a simulation of movement of the pedestrian by causing the pedestrian to walk the walking area;
A history storage means for storing a history of pedestrian movement, which is a result of a simulation executed by the simulation execution means;
Based on the pedestrian history stored in the history storage means, a divided area specifying means for specifying the divided area through which the pedestrian has passed;
With
The information processing apparatus according to claim 1, wherein the determining unit determines the divided area specified by the divided area specifying unit as the measurement area. Route object generation control means for performing control to generate a route object indicating a route that the pedestrian has taken from a history of movement of the pedestrian stored in the history storage means
With
The divided area specifying means specifies the divided area as a divided area through which a pedestrian has passed when the divided area and the root object generated by the route object generation control means overlap. The information processing apparatus according to claim 3. A size determination means for determining whether the size of the map has reached a predetermined size;
With
The determination means is a case where the size determination means determines that the map has reached a predetermined size, and a history of pedestrian movement is stored in the history storage means. The information processing apparatus according to claim 3 or 4, wherein a divided area specified by the divided area specifying unit is determined as the measurement area. The information processing apparatus according to claim 1, further comprising: an identification display control unit that performs control for identifying and displaying the measurement region. A walking region specifying step for specifying a walking region that is a region where a pedestrian can walk on a map;
A divided region generation control step for performing control to generate a divided region obtained by dividing the region on the map;
A determination step of determining whether the divided region generated by the divided region generation control step and the walking region overlap;
The divided area determined to overlap with the walking area in the determination step is determined as a measurement area that is an area for measuring the number of pedestrians per predetermined time when the pedestrian is caused to walk the walking area. A decision process to
An information processing apparatus control method comprising: Information processing device
A walking region specifying means for specifying a walking region that is a region where a pedestrian can walk on a map;
A divided region generation control means for performing control to generate a divided region obtained by dividing the region on the map;
A determination unit that determines whether the divided region generated by the divided region generation control unit and the walking region overlap;
The divided area determined to overlap the walking area by the determining means is determined as a measurement area that is an area for measuring the number of pedestrians per predetermined time when the walking area is caused to walk by a pedestrian. A program for an information processing apparatus, which is caused to function as a determination unit. An information processing system including a client device and an information processing device,
A walking region specifying means for specifying a walking region that is a region where a pedestrian can walk on a map;
A divided region generation control means for performing control to generate a divided region obtained by dividing the region on the map;
A determination unit that determines whether the divided region generated by the divided region generation control unit and the walking region overlap;
The divided area determined to overlap the walking area by the determining means is determined as a measurement area that is an area for measuring the number of pedestrians per predetermined time when the walking area is caused to walk by a pedestrian. A decision means to
An information processing system comprising:

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