JP6529175B2 - INFORMATION PROCESSING SYSTEM AND INFORMATION PROCESSING METHOD - Google Patents

Description

The present invention relates to an information processing system, and information how to process.

  In GIS (Geographic Information System), information linked to each position on the map is displayed superimposed on the map. For example, various types of information are managed in units of layers, and by displaying the necessary layers, the information of the layers is displayed superimposed on the map (for example, Non-Patent Document 1).

National Land Information Web Mapping System (Ministry of Land, Infrastructure, Transport and Tourism, National Land Policy Bureau, National Land Information Division) http://nrb-www.mlit.go.jp/webmapc/mapmain.html

  In the above-described GIS, when a plurality of layers are displayed on a map, various types of information may be overlapped and displayed, which may be difficult to view. Therefore, as in Non-Patent Document 1, there is a case where a selection screen of layers represented by a hierarchical structure of directories is displayed, and only the layer selected on the selection screen is displayed superimposed on the map. However, when the data of the layer to be selected is expressed in text as in Non-Patent Document 1, it is difficult to find data to be displayed.

The present invention has been made in view of the above, and an object thereof is to provide an information processing system that displays to allow easy selection of data to be displayed on the map, and information how to process.

  The present invention has been made to solve the above-described problems, and one aspect of the present invention is that a data acquisition unit for acquiring data of each layer from an external database, and the data acquisition unit for acquiring information A first display control unit configured to individually overlap and display the images of the respective layers based on the data of the respective layers on the map, and a layer selected from the images of the respective layers displayed on the display unit Information output unit for outputting the image of the information providing apparatus to the information providing apparatus, the information providing apparatus including a second display control unit for displaying the image of the layer outputted from the image It is a processing system.

  Further, according to one aspect of the present invention, in the information processing system described above, the information processing apparatus further includes a display information acquisition unit that acquires display information regarding a display area of a map displayed by the second display control unit. The first display control unit causes the image of each layer of the portion corresponding to the display information acquired by the display information acquisition unit to be individually superimposed on the map and displayed.

  Further, according to one aspect of the present invention, in the information processing system, the display information includes position information indicating a position of a map displayed by the second display control unit, and the first display control unit The image of each layer of the portion corresponding to the position information is individually superimposed on the map and displayed.

  Further, according to one aspect of the present invention, in the information processing system, the display information includes information indicating a range or magnification of a map displayed by the second display control unit, and the first display control unit The image of each layer of the portion corresponding to the range or the magnification is displayed separately on the map separately.

  Further, according to one aspect of the present invention, in the information processing system, when the display information changes, the first display control unit individually maps the images of the layers of the portion changed according to the change. Overlap and display.

  Further, according to one aspect of the present invention, in the information processing system, a selection unit that selects a portion in an image of each layer displayed by the first display control unit, and an extraction that extracts the portion selected by the selection unit And the image output unit outputs an image of the portion extracted by the extraction unit.

  Further, according to one aspect of the present invention, in the information processing system, the selection unit selects, as the portion, a selection range input from a user or an object input from the user.

  In one embodiment of the present invention, the information processing system further includes a storage unit storing history information of the portion selected by the selection unit, the selection unit based on the history information stored by the storage unit. Select the part.

  Further, according to one aspect of the present invention, in the information processing system, the conversion unit converts the image of at least one of the images of each layer based on the data of each layer acquired by the data acquisition unit. The first display control unit causes the image of the layer including the image converted by the conversion unit to be superimposed and displayed on the map.

  Further, according to an aspect of the present invention, in the above-described information processing system, when the information processing apparatus overlaps at least two of images of each layer based on data of each layer acquired by the data acquisition unit, And a conversion unit configured to convert an image of at least one of the images of the layers based on the determination result of the determination unit.

  Further, according to one aspect of the present invention, in the information processing system, the information processing apparatus determines in advance when at least two of images of layers based on data of the layers acquired by the data acquiring unit are overlapped. A determination unit that determines whether colors in the selected image area are the same or similar; and the conversion unit generates an image of at least one of the images of each layer based on the determination result of the determination unit. Convert.

  Further, according to one aspect of the present invention, in the information processing system, the conversion unit converts colors of at least a part of images of at least one of the images of each layer based on the determination result of the determination unit. .

  Further, according to one aspect of the present invention, in the information processing system, the conversion unit converts a graphic in an image into a character or a graph for at least one of the images of each layer based on the determination result of the determination unit. Do.

  Further, according to one aspect of the present invention, in the information processing system, the image output unit selects one of the images of each layer displayed on the display unit based on the degree of importance preset for each layer. Determine the stacking order of the images of the selected layers.

  In one aspect of the present invention, a data acquisition unit for acquiring data of each layer from an external database and an image of each layer based on the data of each layer acquired by the data acquisition unit are individually superimposed on the map. The information processing apparatus includes: a display control unit configured to display the images side by side on a display unit; and an image output unit configured to output an image of a selected layer among the images of the layers displayed on the display unit.

  In one aspect of the present invention, the information processing apparatus acquires data of each layer from an external database, and an image of each layer based on data of each layer acquired in the data acquisition step is individualized. A first display control step of displaying them on a display unit superimposed on a map, and an image output step of outputting an image of a selected layer among the images of the respective layers displayed on the display unit to the information providing apparatus; The information processing method may further include: a second display control step of: displaying the image of the layer output from the image output step on a map in a superimposed manner.

  Further, one aspect of the present invention is a step of acquiring data of each layer from an external database, and a step of displaying an image of each layer based on the acquired data of each layer separately on a map and overlapping on a map. And a step of outputting an image of a selected layer among the images of the layers displayed on the display unit.

  According to the present invention, data to be displayed on a map can be displayed so that it can be easily selected.

Explanatory drawing explaining the outline | summary of GIS. FIG. 6 is a view showing an example of a layer selection screen according to the first embodiment. BRIEF DESCRIPTION OF THE DRAWINGS Schematic which shows an example of the information processing system which concerns on 1st Embodiment. FIG. 1 is a block diagram showing an example of a configuration of an information processing apparatus according to a first embodiment. FIG. 5 is a sequence diagram showing an example of map data display processing according to the first embodiment. FIG. 8 is a block diagram showing an example of the arrangement of an information processing apparatus according to the second embodiment; FIG. 13 is a block diagram showing an example of the configuration of an information processing apparatus according to a third embodiment. The flowchart which shows the 1st example of the prefetch processing which relates to 3rd execution form. 12 is a flowchart showing a second example of prefetch processing according to the third embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
First Embodiment
First, an outline of a GIS (Geographic Information System) related to the present embodiment will be described. FIG. 1 is an explanatory view for explaining the outline of the GIS.

  GIS is a system for visualizing and controlling geospatial information. Specifically, GIS manages data linked to each position on a map in units of information groups that can be superimposed, ie, layers, and images (icons, photographs, etc.) based on data of each layer as necessary. Graphics, letters, etc. are displayed superimposed on the map. For example, as shown in the figure, in GIS, a map is layered, and data having position information corresponding to the area of the map is added to each layer (layer A, layer B, layer C,...) From an external database. An image based on the acquired and acquired data of each layer is displayed superimposed on the map that is the base layer. This makes it possible to visually grasp where on the map what is or the situation of each position on the map.

  The data acquired for each layer may be any information as long as the information has position information. For example, data acquired for each layer may be an object whose position is fixed, such as a store, a track, a road, a park, or a building, or sensors actually installed at each point (temperature sensor, wind sensor , Data representing a detection result of a rainfall sensor, a water level sensor of a river, a flow rate sensor, etc.) or an object visualizing the data. In addition, data acquired for each layer may be hazard maps such as floods and landslide disasters, photographs and videos of each point, and the like.

  In addition, in GIS, since various data are superimposed and displayed on a map, it is easy to see the operability when selecting the necessary data, and the ability to visualize multiple pieces of information on a single map Is important. If the data to be displayed increases and the operability at the time of displaying and using the data on the map is poor or the displayed data is difficult to see, the practicability in business use is lost and the GIS is incorporated. It will be difficult to take advantage of the introduction of

  For example, conventionally, when there is a large amount of data of the layer to be selected, and they are expressed as text, it is difficult to imagine what will be specifically displayed with text alone, so it is difficult to find data to be displayed . In addition, when many layers are displayed in an overlapping manner, it is difficult to know what data is displayed, and even if it is intended to remove an unnecessary layer from the display, it is difficult to know which text is represented by that layer. In the case of UI (User Interface) of check box type data selection expressed in the hierarchical structure of the directory, it is necessary to repeat the digging down of the directory and visually confirm from a large number of candidates, and search for the target data Is difficult. Also, when combining multiple data, it takes more time to find the data. Thus, conventionally, it has been time consuming to select the displayed layer. Also, conventionally, the data of the display image of the data (how many, how many statuses are there, whether it is distributed in the currently displayed area, etc.) Because I do not know until I get it, it takes time even if I just want to check easily.

  Therefore, the information processing system according to the present embodiment individually superimposes each selectable layer on a map so as to visually recognize the data of the selected layer. Thereby, in the information processing system according to the present embodiment, the data is displayed on the map in an easy-to-understand manner, so it becomes easy to find the data to be displayed.

(Example of layer selection screen)
FIG. 2 is a view showing an example of a layer selection screen according to the present embodiment. The code | symbol G10 to show has shown the whole layer selection screen, and describes it as the layer selection screen G10. In the layer selection screen G10, thumbnail images of layers selectable as targets to be displayed are displayed side by side in the area indicated by the code G11. The thumbnail image of each layer is an image in which an image based on data of each layer is superimposed on a map. The map is a thumbnail image of the map of the area displayed by the information providing device 10, and is arranged at the lowest layer as a base layer. Here, thumbnail images of four layers of layer A, layer B, layer C, and layer D are displayed side by side, and in the thumbnail images of each layer, an image based on data of each layer is superimposed on a map of the same area. The image is For example, when the area of the map displayed in the information providing apparatus 10 is changed, the map area of the thumbnail image of the four layers of layer A, layer B, layer C, and layer D, and the data of each layer to be superimposed Images based on are also changed in conjunction.

  For example, the layer selection screen G10 is displayed on a display equipped with a touch panel that receives an operation input on the display screen. The user (also referred to as an operator) can select a layer as a target to be displayed by performing a touch operation on the thumbnail image of the layer to be displayed among the thumbnail images of the layers displayed side by side. . Although multiple selections are possible for layer selection, a limit may be placed on the number of selections.

  In the layer selection screen G10, various operation buttons are displayed in the area indicated by the code G12. The type selection button B1 ("type selection") is an operation button for selecting the type of data. The type of data is, for example, a type of disaster such as flood, fire, landslide and the like. When the operator performs a touch operation on the type selection button B1, the screen is switched to a menu screen for selecting a disaster type in the area indicated by the code G11. When the operator performs an operation to select a target disaster from among the disaster types displayed on the menu screen, thumbnail images of layers related to the selected disaster are displayed in the area indicated by the code G11 as illustrated. Ru. In the illustrated example, layer A is a water level sensor layer, layer B is a layer of rainfall mesh information, layer C is a layer of flood hazard map, and layer C is a local photograph layer.

  The composite image button B2 ("composite image") is an operation button for temporarily displaying a composite image of the selected layer. When the operator performs a touch operation on the composite image button B2, a composite image when the layer selected at that time is superimposed on the map is displayed in the area indicated by the reference symbol G11.

  The composition / transfer button B3 (“composition / transfer”) is an operation button for actually generating and transferring a composite image when the displayed composite image is acceptable. When the operator performs a touch operation on the compositing / transfer button B3, the composite of the image of the layer superimposed on the map in the composite image being displayed and the image of the map (image of the base layer) is composited Images are generated and transferred. The transfer destination is a predetermined display device (for example, a projector) of the information processing system, and is different from the display for the operator on which the layer selection screen G10 shown in this figure is displayed. The transfer destination and the display for the operator may be the same display device.

  The return button B4 ("RETURN") is an operation button for returning the screen displayed in the area indicated by the code G11 to the screen displayed one before. For example, when a menu screen for selecting a disaster type or a composite image is displayed in the area indicated by the code G11, a thumbnail of a layer selectable as an object to be displayed when a touch operation is performed on the back button B4. Switch to the screen where the images are displayed side by side.

  In addition, when there are many selectable layers, thumbnail images of the selectable layers are divided into a plurality of pages and displayed. The page feed button B5 and the page return button B6 are operation buttons for performing page feed and return, respectively. In the page label LB1, the page being displayed is displayed in the area indicated by the code G11. By providing the page switching function in this manner, it is possible to confirm a lot of information as a target of selection. Note that only the designated layer may be displayed on the entire screen (for example, the entire area indicated by the code G11).

  Although an example in which the layer selection screen G10 is displayed on a display equipped with a touch panel has been described here with reference to FIG. 2, the display on which the layer selection screen G10 is displayed has a touch panel installed. Alternatively, the operator may operate the mouse or the like to operate each layer and each operation button.

(Configuration of information processing system)
Hereinafter, the configuration of the information processing system according to the present embodiment will be described.
FIG. 3 is a schematic view showing an example of the information processing system 1 according to the present embodiment. For example, the information processing system 1 is a disaster countermeasure support system that supports damage prediction at the time of occurrence of a disaster and decision making in a plan for disaster countermeasure. In the example illustrated, the information processing system 1 is configured to include an information providing device 10, an information processing device 20, and an external database 30. The information providing device 10, the information processing device 20, and the external database 30 are configured to be able to communicate with each other via the communication network NW.

  The communication network NW is an information communication network configured by the Internet, a wide area network (WAN), a local area network (LAN), and the like. The WAN is configured by, for example, a cellular phone network, a personal handy-phone system (PHS) network, a public switched telephone network (PSTN), a private communication network, a virtual private network (VPN), and the like.

  The information providing device 10 and the information processing device 20 cooperate with the functions of the respective devices to superimpose various data on a map and display the data using a GIS. The information providing apparatus 10 has, for example, a map display function as an existing GIS, and projects a composite image in which various data are superimposed on the map onto the digital sheet 12 via the projector 11. The digital sheet 12 has a role of a screen for projecting an image projected from the projector 11, and receives input of disaster countermeasure information and the like by operating the digital pen 13 on the projected map. The input information received by the digital sheet 12 is sent to the information providing device 10.

  The information processing apparatus 20 acquires map data of a display area of a map displayed by the information providing apparatus 10 and data corresponding to the display area of the map from the external database 30 for each layer. The external database 30 includes map data, data indicating values based on detection results of sensors actually installed at each point, an image including an object visualizing the data, hazard map such as flood or landslide disaster, each point It is a database that provides photos, videos, etc. of in layers. Although one database is shown as the external database 30 in this figure, a plurality of databases may be provided according to various data. Further, the external database 30 is a storage device for storing various data, and a communication device for transmitting various data stored in the storage device to the information processing device 20 in units of layers in response to a request from the information processing device 20. And is included.

  In the case where the information processing apparatus 20 acquires map data from the external database 30 and uses it, the use of an open / free map database can reduce license costs and use a map suitable for the application. Can. In addition, you may use a detailed map normally and switch to a lightweight map (a map with rough resolution) and use it if the response is slow (the network load is high).

  Further, the information processing device 20 individually superimposes thumbnail images based on the acquired data for each layer on a map and causes the sub display 21 to display the thumbnail images (see the layer selection screen G10 in FIG. 2). The sub display 21 is a display unit for the operator, and is, for example, a liquid crystal display, an organic EL (Electroluminescence) display, or the like. In addition, the sub display 21 has, for example, a touch panel that receives an operation input on the display screen.

  Further, the information processing device 20 generates a composite image in which the image of the layer selected by the operator on the layer selection screen G10 displayed on the sub display 21 is superimposed on the map, and transmits the composite image to the information providing device 10. The information providing device 10 acquires a composite image transmitted from the information processing device 20. Thus, the information providing apparatus 10 can project the composite image in which the image of the layer selected by the operator is mapped on the digital sheet 12 through the projector 11.

(Configuration of the information processing apparatus 20)
Next, the configuration of the information processing apparatus 20 will be described in detail with reference to FIG.
FIG. 4 is a block diagram showing an example of the configuration of the information processing apparatus 20 according to the present embodiment.
The information processing apparatus 20 shown in the figure includes a display information acquisition unit 210, a data acquisition unit 220, a layer image generation unit 230, a storage unit 240, a display control unit 250 (first display control unit), and a selection unit 260. , And an image output unit 270.

  The display information acquisition unit 210 acquires display information regarding the display area of the map that the information providing device 10 is displaying. Here, the display information includes position information (latitude and longitude information) indicating the position of the map displayed by the information providing device 10. In addition, the display information may include information indicating the range or magnification of the map displayed by the information providing device 10. The display information acquisition unit 210 outputs the acquired display information to the data acquisition unit 220.

  The data acquisition unit 220 acquires data of each layer from the external database 30. For example, when the data acquisition unit 220 acquires the display information output from the display information acquisition unit 210, the data corresponding to the area of the map according to the acquired display information (map data and data to be superimposed on the map) Get to The data acquisition unit 220 may acquire only the data of the relevant layer according to the data type (for example, disaster type) selected by the operator. For example, the association between the data type and the layer to be acquired is set in advance and stored in the storage unit 240. Then, the data acquisition unit 220 outputs the acquired data of each layer to the layer image generation unit 230.

  The layer image generation unit 230 generates an image of each layer based on the data of each layer acquired by the data acquisition unit 220. Then, the layer image generation unit 230 stores the generated image of each layer in the storage unit 240. Here, the image of each layer is an image of a map and an image (icon, photograph, figure, character, etc.) displayed superimposed on the map. For example, when generating an image of a layer to be displayed superimposed on a map, the layer image generation unit 230 visually determines the value of the data by converting the data of the layer into a color or an icon according to the value of the data. Visualize as you can. When the data acquired by the data acquisition unit 220 from the external database 30 is data of an image that can be displayed superimposed on the map, the layer image generation unit 230 stores the acquired data in the storage unit 240 as it is. Let Also, the layer image generation unit 230 generates a thumbnail image of the generated image of the layer and stores the thumbnail image in the storage unit 240. The thumbnail image is an image whose size is reduced with respect to the original image.

  The storage unit 240 includes an HDD (Hard Disc Drive), a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), an ROM (Read Only Memory), a RAM (Random Access Memory), etc. , Store data etc. For example, the storage unit 240 stores the image of the layer generated by the layer image generation unit 230 and the thumbnail image. Further, the storage unit 240 stores history information such as layers selected by the operator, and setting information such as importance and relevance of each layer. For example, it stores type related information in which a layer associated with each type of data is associated as a set.

  The display control unit 250 individually superimposes the thumbnail images of the layers stored in the storage unit 240 on the map, and causes the sub display 21 to arrange and display them. That is, the display control unit 250 individually superimposes the thumbnail images of the layers based on the data of the layers acquired by the data acquisition unit 220 on the map and causes the sub display 21 to arrange and display them.

  For example, the display control unit 250 individually maps the thumbnail image of each layer of a portion corresponding to the display information acquired by the display information acquisition unit 210 (the display area of the map displayed on the information providing device 10) Overlap and display. Specifically, the display control unit 250 individually superimposes and displays the thumbnail image of each layer of the portion corresponding to the position information, the range, or the magnification included in the display information on the map. In addition, when the display information changes, the display control unit 250 individually displays the thumbnail images of the layers of the portion changed according to the change on the map separately. That is, when the display area of the map displayed in the information providing device 10 is changed, the display control unit 250 changes the thumbnail image of each layer of the changed area in an interlocked manner and displays the thumbnail image.

As described above, since the map serving as the base layer is linked with the existing GIS (information providing apparatus 10) map, the operator can confirm necessary information while operating the existing GIS. Further, when the display position of the map is moved or scaled by the existing GIS, the display position or the scale of the map of each thumbnail on the sub display 21 is similarly changed in conjunction with that.

  In addition, when the type of data (for example, the type of disaster) is selected, the display control unit 250 refers to the type related information stored in the storage section 240, and a layer associated with the type of selected data. Based on the set of (1), thumbnail images for one set of layers necessary for the type of data (for example, flood damage) are superimposed and displayed on the map. Note that the display control unit 250 may learn layers displayed in the past, and may display them as a combination of data of related layers in the subsequent display.

  The selection unit 260 selects a layer to be displayed based on the operation input by the operator on the layer selection screen G10 (FIG. 2) displayed on the sub display 21. Then, information indicating the selected layer is output to the display control unit 250 and the image output unit 270. When the display control unit 250 acquires information indicating the selected layer from the selection unit 260, the display control unit 250 causes the display to indicate that it has been selected. In addition, the image output unit 270 uses the information indicating the selected layer acquired from the selection unit 260 in layer combination.

  The selection unit 260 may select a portion in the image of each layer based on the operation input of the operator on the layer selection screen G10 (FIG. 2) displayed on the sub display 21. For example, the selection unit 260 may select a selection range operated by the operator or a target (object) operated by the operator in the thumbnail image of each layer as the part.

  As a selection method, for example, the operator changes the size (circle or square) of a circle (or a square frame) indicating an area by touch operation or the like on the screen of the composite image, the selection unit 260 The data of may be the selection range. In addition, the operator may select only one of the water level sensors at a point where it reaches the danger water area, and the selection unit 260 may select only one at a point where the water danger area is reached. The unit 260 may select automatically. Further, the operator may manually select a necessary range (a radius of 1 km, etc.) from the water level sensor, and the selection unit 260 may select only the range.

  As a result, the information processing apparatus 20 can overlap and display only the necessary part in the image of the layer on the map, instead of overlapping all the images of the layer on the map. Generally, in open data and dynamically changing data, it is not necessary to have all the information in the range displayed in the layer, so it is possible to select only the part necessary for analysis. For example, when the operator selects a display range of data and only that portion is synthesized, data can not be displayed at unnecessary places, and the amount of data can be reduced.

  In addition, the selection unit 260 may cause the storage unit 240 to store history information of a portion selected in the thumbnail image of the layer. Then, the selection unit 260 may select a portion in the thumbnail image of the layer based on the history information stored in the storage unit 240.

  The image output unit 270 combines the image of the selected layer among the thumbnail images of each layer displayed on the sub display 21 with the layer of the base of the map, and outputs the combined image to the information providing device 10. For example, the image output unit 270 includes an extraction unit 271 and a combining unit 272.

  The extraction unit 271 extracts an image of the layer selected by the selection unit 260 (for example, the entire image displayed as a thumbnail image in each layer) and reads it from the storage unit 240. When the selecting unit 260 selects a portion in the thumbnail image of the layer, the extracting unit 271 extracts an image of the selected portion in the layer and reads the image from the storage unit 240. In addition, the extraction unit 271 extracts an image of the map (an image for the display area) serving as a base layer and reads the image from the storage unit 240.

  The synthesizing unit 272 generates a synthesized image obtained by synthesizing an image of a layer including the map image extracted by the extracting unit, and outputs (sends) the generated synthesized image to the information providing apparatus 10.

  The information providing apparatus 10 includes a map display function unit 110 that displays a map based on GIS via the projector 11. Here, the map display function unit 110 functions as a display control unit (second display control unit) that acquires the composite image transmitted from the information processing apparatus 20 and causes the acquired composite image to be displayed via the projector 11. .

  As described above, the information processing apparatus 20 combines data of a plurality of layers displayed as thumbnail images, and generates a composite image as one layer. Therefore, the information providing apparatus 10 on the side receiving the composite image includes one layer. You only need to have the ability to display For example, the information processing apparatus 20 acquires data and composes a layer as an intermediary with the information providing apparatus 10 (existing GIS) in order to meet the needs for linking data and map information on the Internet. , It is possible to suppress remodeling and processing load in the information providing apparatus 10 (existing GIS).

  In the above, the configuration example of combining the layers in the information processing device 20 in consideration of the modification of the information providing device 10 and the suppression of the suppression of the processing load has been described. The image may be transmitted to the information providing device 10, and the information providing device 10 may combine the layers. In addition, the information processing device 20 may generate a composite image in which layers other than the map are combined and transmit the composite image to the information providing device 10. In this case, the information providing apparatus 10 generates a composite image in which the layer of the acquired composite image is superimposed on the layer of the map.

(Operation of map data display process)
Next, with reference to FIG. 5, the operation of the map data display process of displaying various data superimposed on the map in the information processing system 1 will be described.
FIG. 5 is a sequence diagram showing an example of the map data display process according to the present embodiment.

  First, the information providing device 10 causes the digital sheet 12 to display a map of an area where a disaster has occurred (wants to collect information) according to the operation of the operator (step S101). Next, when the operator operates the digital pen 13 on the digital sheet 12 to click the information collection button (step S301), the information providing apparatus 10 displays the display information on the display area of the displayed map ( The position information, information indicating the range or magnification) is transmitted to the information processing apparatus 20 (step S102).

  When acquiring the display information transmitted from the information providing apparatus 10, the information processing apparatus 20 causes the sub display 21 to display a menu screen for selecting a disaster type (flood, fire, landslide disaster, etc.) (step S201). The operator selects a disaster type on the menu screen displayed on the sub display 21 (step S302). Here, it is assumed that the operator selects "flood damage" on the menu screen.

  When the operator selects "flood damage" as the disaster type, the information processing apparatus 20 receives flood-related data (water level sensor, rainfall mesh information, hazard map, photographs from the field, etc.) associated in advance with the "flood". The information is collected and acquired for each layer from the external database 30 (step S202). Then, the information processing device 20 displays thumbnail images based on the acquired flood-related data separately on the map for each layer and arranging them on the sub display 21 (step S203, see the layer selection screen G10 in FIG. 2). The map of each layer at this time interlock | cooperates with the display area of the map which the information provision apparatus 10 is displaying. If the collected data does not match the position and the scale of the map displayed by the information providing device 10, the information processing device 20 changes the position and the scale appropriately and displays the data.

  Next, the operator selects the thumbnail image of the layer to be combined (that is, the layer to be displayed by the information providing device 10) on the layer selection screen G10, and performs touch operation on the combined image button B2 (step S303). Thereby, the information processing apparatus 20 generates a composite image when the selected layer is superimposed on the map, and displays the composite image in the area indicated by the code G11 of the layer selection screen G10 (step S204).

  Further, the operator performs an operation (for example, an operation for enlarging or reducing a circle indicating an area) for selecting a portion in the thumbnail image of the layer on the layer selection screen G10, and selects a range (region) of data to be combined Step S304). Thereby, the information processing apparatus 20 generates a composite image when the thumbnail image including only the data in the selected range is superimposed on the map, and the area indicated by the code G11 of the layer selection screen G10 is generated. It is displayed (step S205).

  Next, the operator confirms the composite image displayed in step S205, and performs touch operation on the composition / transfer button B3 (step S305). Thereby, the information processing device 20 generates a composite image in which the image of the selected layer or the image of the selected part in the layer is superimposed on the map (step S206), and the generated composite image is the information providing device 10 It transmits to (step S207).

  The information providing device 10 acquires the composite image transmitted from the information processing device 20, and causes the digital sheet 12 to display the acquired composite image via the projector 11 (step S103).

  As described above, the information processing system 1 according to the present embodiment includes the information providing device 10 and the information processing device 20. The information processing apparatus 20 acquires data of each layer from the external database 30, and individually superimposes an image of each layer based on the acquired data of each layer on a map and arranges them on the sub display 21 (an example of a display unit) Display. Further, the information processing device 20 outputs an image of a selected layer among the images of the layers displayed on the sub display 21 to the information providing device 10. Then, the information providing device 10 superimposes and displays the image of the layer output from the information processing device 20 on the map. Thus, the information processing system 1 can display data desired to be displayed on the map so that the operator can easily select the data.

Second Embodiment
Next, a second embodiment of the present invention will be described.
In the present embodiment, an example of converting an image so that an image of a layer to be displayed superimposed on a map can be easily viewed will be described.

  The basic configuration of the information processing system 1A according to the present embodiment is the same as that of the information processing system 1 shown in FIG. 3, but a part of the configuration of the information processing apparatus 20 is different. FIG. 6 is a block diagram showing an example of the configuration of the information processing apparatus 20A according to the present embodiment. In addition, in FIG. 6, the same code | symbol is attached | subjected to the structure corresponding to each part shown in FIG. 4, The description is abbreviate | omitted.

  The illustrated information processing apparatus 20A includes a display information acquisition unit 210, a data acquisition unit 220, a layer image generation unit 230A, a storage unit 240, a display control unit 250, a selection unit 260, and an image output unit 270. It comprises. For example, in layer composition, when colors overlap or mix, it becomes difficult to know which layer of information or to see. Therefore, the layer image generation unit 230A adjusts the color of each layer so that the same color or similar color does not overlap when combining layers, and generates an image of each layer. For example, the layer image generation unit 230A includes a determination unit 231 and a conversion unit 232.

  The determination unit 231 determines whether or not objects in the image overlap when at least two of the images of the layers are overlapped based on the data of the layers acquired by the data acquisition unit 220. For example, the determination unit 231 determines whether or not objects overlap between layers based on the position and size of the objects in the image of each layer. Note that overlapping objects is not limited to the case where all the objects overlap, but also includes the case where some of the objects overlap by a preset ratio or more.

  The conversion unit 232 converts an image of at least one of the images of each layer based on the determination result of the determination unit 231. For example, when the determination unit 231 determines that the objects overlap, the conversion unit 232 converts the color of the object determined to overlap with at least one of the images of the layers. That is, the conversion unit 232 causes the color of at least one object to be different from or different from the color of the other object so that the color of the object of each layer determined to overlap does not become the same color or a similar color. Set to

  Even when the objects in the image do not overlap when the images of at least two layers overlap, if the colors of the adjacent objects are the same or similar, it is similarly difficult to see. Therefore, when the determination unit 231 overlaps at least two of the images of each layer based on the data of each layer acquired by the data acquisition unit 220, the colors in the predetermined image area are the same or similar or not It may be determined. In this case, when the determining unit 231 determines that the colors in the image area determined in advance are the same or similar, the converting unit 232 determines the color of the object in the image area for at least one of the images of each layer. Convert.

  In addition, when converting the color of the image of at least one layer, the conversion unit 232 combines numerical values of a plurality of data of the layer to be converted by a function, converts it into a new numerical value, and converts it using a new color pattern. You may

  Further, the conversion unit 232 may convert not only the color but any one of the display modes such as the color, the shape, and the size, or may convert a plurality of display modes in combination. . In addition, the conversion unit 232 may change the display mode in which the graphic in the image is converted into characters for at least one of the images of each layer.

  For example, the converting unit 232 may convert the color of a figure represented by a square or circle visualized based on data of at least one layer into another color, or the shape of the figure may be converted to another color. It may be converted to a shape or reduced in size. In addition, the conversion unit 232 may convert the figure into a character or a graph representing data. Specifically, when objects of the same color or similar colors overlap, the conversion unit 232 avoids that both objects are expressed in color, and at least one is expressed with a line (contour line), or at least One of them may be converted to be represented by a bar graph. As an example, the conversion unit 232 is a bar graph (three-dimensionally viewed) with a representation of two types of data such as a layer (color) of rainfall mesh information and a flood hazard map (color), It may be converted into a line surrounding the flood inundation area of flood level calculated from rainfall.

  The processing by the determination unit 231 and the conversion unit 232 described above is performed, for example, when the processing by the determination unit 231 and the conversion unit 232 described above is generated at the time of generating the composite image in step S204 shown in FIG. This may be performed when generating a thumbnail image based on the flood related data in step S203 shown in FIG.

As described above, in the information processing apparatus 20 according to the present embodiment, the conversion unit 232 converts an image of at least one of the images of each layer based on the data of each layer acquired by the data acquisition unit 220. Then, the display control unit 250 causes the thumbnail image of the layer including the image converted by the conversion unit 232 to be superimposed and displayed on the map.
Thereby, the information processing apparatus 20 can improve the visibility of the image of each layer, when displaying the image of a several layer on a map in piles. That is, the information processing apparatus 20 can improve the visibility of the information to be displayed on the map.

  The information processing apparatus 20 may change the display mode in accordance with the user to be used, the purpose of use, the type of work, and the like. For example, the information processing apparatus 20 may change the type and size of a figure (such as an icon) of an object and display the same even if the information is the same for fire extinguishing, emergency, etc. depending on the application.

In addition, the information processing device 20 may set the order of layers to be superimposed on the map. For example, the image output unit 270 determines the stacking order of the images of the selected layer among the images of each layer displayed on the sub display 21 based on the importance set in advance for each layer. Thus, the information processing apparatus 20 can prevent, for example, high importance information from being hidden by information of other layers by superposing layers of high importance, for example.
Further, the information processing apparatus 20 may set the order of the layers to be overlaid on the map according to the display mode of each layer to be overlaid on the map. For example, the information processing apparatus 20 may superimpose a bar graph converted from the value of the rainfall sensor on the layer of the flood hazard map.

Third Embodiment
Next, a third embodiment of the present invention will be described.
In the use of GIS, when various types and large amounts of data are required and the layers superimposed on the map increase, data acquired from the external database 30 may increase and a long waiting time may occur for acquisition. Since it is necessary to acquire data from the external database 30 every time the display area changes due to the operation of moving or enlarging or reducing the display area of the map, there is a concern that the response may deteriorate if it takes time each time. Also, after viewing and hiding the data once acquired and displayed, if it is attempted to display again for confirmation, it may be necessary to acquire the data again, which may take time. As described above, when the processing load in the GIS becomes heavy and the data display speed decreases, there is a concern that the usability is impaired and the original work can not be performed. Thus, in the present embodiment, an example will be described in which the display speed of data to be displayed superimposed on the map is improved.

  The basic configuration of the information processing system 1B according to the present embodiment is the same as the information processing system 1 shown in FIG. 3, but a part of the configuration of the information processing apparatus 20 is different. FIG. 7 is a block diagram showing an example of the configuration of the information processing apparatus 20B according to the present embodiment. In addition, in FIG. 7, the same code | symbol is attached | subjected to the structure corresponding to each part shown in FIG. 4, The description is abbreviate | omitted.

  The information processing device 20B caches the data of the layer acquired once from the external database 30 in the storage unit 240 (stored as cache data), and accesses the external database 30 when the data is next required. Use stored cache data instead. Further, the information processing apparatus 20B prefetches (prereads) data of a layer predicted to be used from the external database 30 (stores it as prefetch data), and prepares for display. Thereby, the information processing system 1B according to the present embodiment can improve the display speed of the data to be displayed so as to be superimposed on the map by using the cache data or the prefetch data.

  The illustrated information processing apparatus 20B includes a display information acquisition unit 210, a data acquisition unit 220B, a layer image generation unit 230, a storage unit 240, a display control unit 250, a selection unit 260, and an image output unit 270. It comprises. The data acquisition unit 220B includes a first data acquisition unit 221 and a second data acquisition unit 222.

  The first data acquisition unit 221 acquires, from the external database 30, data of the layer of the first area corresponding to the display information acquired by the display information acquisition unit 210. The function of the first data acquisition unit 221 corresponds to the function of the data acquisition unit 220 in FIGS. 4 and 6. That is, the display control unit 250 displays the thumbnail images of the layers based on the data of the layer acquired by the first data acquisition unit 221 in an overlapping manner on the map (see the layer selection screen G10 in FIG. 2). The first area is, for example, an area corresponding to the display area of the map displayed by the information providing apparatus 10, and is an area equal to or larger than the display area of the map (an area slightly larger than the display area of the map). is there.

  In addition, the image output unit 270 combines the images of the layers selected on the layer selection screen G10 among the images based on the data of the layer of the first area acquired by the first data acquisition unit 221 to the information providing device 10 Send. The information providing apparatus 10 acquires the transmitted composite image, and superimposes and displays the image of the layer on the map.

  Further, the image and the thumbnail image of the layer based on the data of the layer acquired by the first data acquisition unit 221 are stored (stored) in the storage unit 240 as cache data. Then, the first data acquisition unit 221 does not newly acquire data from the external database 30 even when the data is required next. In this case, the display control unit 250 and the image output unit 270 use cache data stored in the storage unit 240.

  On the other hand, the second data acquisition unit 222 acquires data of layers other than the data acquired by the first data acquisition unit 221. For example, the data of layers other than the data acquired by the first data acquisition unit 221 is data of a layer of the second area not including the first area. The data of the second area may be data of a second area of the same layer as the layer of data acquired by the first data acquisition unit 221, or may be data of a second area of a different layer. In addition, data of layers other than the data acquired by the first data acquisition unit 221 may be data of another layer different from the layer acquired by the first data acquisition unit 221.

  Then, the layer image generation unit 230 generates an image (including a thumbnail image) based on the layer data acquired by the second data acquisition unit 222, and stores the image in the storage unit 240 as prefetch data. When the display control unit 250 and the image output unit 270 shift to the area for displaying the prefetch data due to a change in the display area of the map, the display control unit 250 and the image output unit 270 use the prefetch data.

  For example, when the display information acquired by the display information acquisition unit 210 changes (that is, when the display area of the map changes), the display control unit 250 stores prefetch data stored in the storage unit 240 according to the change (the 2) Display the layer selection screen G10 on the sub display 21 using the thumbnail image based on the layer data acquired by the data acquisition unit. In addition, when the display information acquired by the display information acquisition unit 210 changes (that is, when the display area of the map changes), the image output unit 270 stores prefetch data stored in the storage unit 240 according to the change (the 2) A composite image is generated using an image based on the layer data acquired by the data acquisition unit and transmitted to the information providing apparatus 10.

Hereinafter, a specific example of data to be prefetched by the information processing device 20 will be described.
(1) Example of prefetching another layer having relevance The information processing apparatus 20 stores the degree of association between layers set in advance in the storage unit 240, and performs prefetching based on the degree of association between layers . For example, in the layer of the water level sensor and the layer of the rainfall mesh information, layers such as a flood hazard map and a landslide hazard map are set as highly relevant layers.

  For example, the second data acquisition unit 222 determines the layer acquired by the first data acquisition unit based on the data of the layer acquired by the first data acquisition unit 221 and the degree of association between layers set in advance. Get data of different other layers. Specifically, the second data acquisition unit 222 acquires data of another layer related to the data of the layer acquired by the first data acquisition unit 221.

  In addition, when the value included in the data of the layer acquired by the first data acquisition unit 221 exceeds a predetermined threshold, the second data acquisition unit 222 relates to the data of the layer acquired by the first data acquisition unit 221. Data of other layers may be acquired. For example, when the value (water level or rainfall) of the layer of the water level sensor or the layer of rainfall mesh information acquired by the first data acquisition unit 221 exceeds the predetermined threshold value, the second data acquisition unit 222 may Acquire the data of the layer of disaster hazard map. In addition, the predetermined threshold is set in advance based on, for example, a water level or rainfall which is determined to be necessary to confirm a flood hazard map or a landslide disaster hazard map.

  FIG. 8 is a flowchart showing a first example of prefetch processing according to the present embodiment. An example of the operation of the process of prefetching a layer having a high degree of association will be described with reference to FIG. Here, an example of processing for prefetching a flood hazard map as a layer having a high degree of association when water level or rainfall exceeds a predetermined threshold will be described.

  The information processing apparatus 20 transmits the composite image to the information providing apparatus 10 (step S211), based on whether the layer of the water level sensor or the layer of rainfall mesh information is included in the transmitted composite image. In the information providing apparatus 10, it is determined whether water level or rainfall information is displayed (step S212).

  If it is determined that the water level or rainfall information is not displayed (step S212: NO), the information processing device 20 ends the process without performing prefetching. On the other hand, when it is determined that the water level or the rainfall information is displayed (step S212: YES), the information processing device 20 determines whether there is a place where the water level or the rainfall exceeds a predetermined threshold ( Step S213).

  If it is determined that there is no place where the water level or the rainfall exceeds the predetermined threshold (step S213: NO), the information processing device 20 ends the process without performing prefetching. On the other hand, when it is determined that there is a place where the water level or the rainfall exceeds the predetermined threshold (step S213: YES), the information processing device 20 sets the layer of the flood hazard map to the layer of the water level sensor or the rainfall mesh information. The layer is extracted as a layer having a high degree of association (step S214).

  Next, the information processing apparatus 20 determines whether the layer of the flood hazard map has been acquired (step S215). If it is determined that the layer of the flood hazard map has been acquired (step S215: YES), the information processing device 20 ends the process without performing prefetching. On the other hand, when it is determined that the layer of the flood hazard map has not been acquired (step S215: NO), the information processing apparatus 20 acquires data of the layer of the flood hazard map and stores the image of the layer as prefetch data. The information is stored in the unit 240 (step S216).

  Here, the layer of the flood hazard map to be prefetched by the information processing device 20 is a layer of a first region corresponding to the display region in the information providing device 10. The information processing apparatus 20 may prefetch the layer of the flood hazard map in a range wider than the first area.

(2) An example of prefetching a layer of another area based on map information The information processing apparatus 20 is a layer of another area different from the display area of the map displayed in the information providing apparatus 10 based on the map information Prefetch data from For example, when the water level or the rainfall exceeds a predetermined threshold in the downstream of the river, the information processing device 20 collects and prefetches upstream dam information. In this example, the layer of the dam information is set as a layer having a high degree of association in the layer of the water level sensor and the layer of the rainfall mesh information. In addition, the predetermined threshold is set in advance based on, for example, the water level or the rainfall which is determined to be necessary to confirm the dam information.

  For example, when the value included in the data of the layer acquired by the first data acquisition unit 221 exceeds the predetermined threshold, the second data acquisition unit 222 determines the first area based on the map information corresponding to the first area. Get the data of the layer in the second area that does not contain At this time, the second data acquisition unit 222 acquires data of another layer related to the data of the layer acquired by the first data acquisition unit 221. Specifically, when the water level or rainfall of the river in the first area exceeds a predetermined threshold, the second data acquisition unit 222 determines, based on the river information included in the map information of the first area, the first area. Acquire the data of the layer of dam information in the second area, which is upstream of the river in the area.

  FIG. 9 is a flowchart showing a second example of prefetch processing according to the present embodiment. An example of operation of processing for prefetching a layer of another area based on the map information will be described with reference to FIG. Here, an example of processing for prefetching a layer of dam information upstream of a river when water level or rainfall exceeds a predetermined threshold will be described.

  The information processing apparatus 20 transmits the composite image to the information providing apparatus 10 (step S221), based on whether the layer of the water level sensor or the layer of rainfall mesh information is included in the transmitted composite image. In the information providing apparatus 10, it is determined whether the water level or rainfall information is displayed (step S222).

  When it is determined that the water level or rainfall information is not displayed (step S222: NO), the information processing device 20 ends the process without performing prefetching. On the other hand, when it is determined that the water level or rainfall information is displayed (step S222: YES), the information processing device 20 determines whether there is a place where the water level or rainfall exceeds a predetermined threshold ( Step S223).

  If it is determined that there is no place where the water level or the rainfall exceeds the predetermined threshold (step S223: NO), the information processing device 20 ends the process without performing prefetching. On the other hand, when it is determined that there is a place where the water level or the rainfall exceeds the predetermined threshold (step S223: YES), the information processing device 20 sets the layer of the dam information to the layer of the water level sensor or the layer of the rainfall mesh information It extracts as a layer with a high degree of association (step S224).

  Next, based on the map information, the information processing apparatus 20 identifies dam information on the upstream side of the river where the water level or the rainfall exceeds a predetermined threshold (step S225).

  Next, the information processing apparatus 20 determines whether or not the layer including the identified dam information has been acquired (step S226). If it is determined that the layer including the identified dam information has been acquired (step S226: YES), the information processing device 20 ends the process without performing prefetching. On the other hand, when it is determined that the layer including the identified dam information is not acquired (step S226: NO), the information processing device 20 acquires data of the layer including the identified dam information, and the information processing device 20 The image is stored in the storage unit 240 as prefetch data (step S227).

Here, the layer including the identified dam information may be a layer of the first area or a layer of the second area, depending on the position on the map of the identified dam. For example, when the identified dam information is within the first area, the information processing apparatus 20 prefetches the layer of the dam information of the first area. On the other hand, when the identified dam information is within the second area, the information processing apparatus 20 prefetches the layer of the dam information of the second area.
In addition, when prefetching the layer of the dam information of a 1st area | region, the information processing apparatus 20 may prefetch the layer of the dam information of the range wider than a 1st area | region. Further, when prefetching the layer of the dam information of the second area, the information processing apparatus 20 may also include the layer of the dam information of the first area.

  In the above (1) and (2), although the example of prefetching the layer of another area based on other layers having relevance and map information has been described, the layer to be prefetched is determined based on other conditions It is also good.

  For example, the information processing device 20 may prefetch based on the history information of layers synthesized in the past. Specifically, based on the layer history information acquired by the first data acquisition unit 221, the second data acquisition unit 222 acquires data of layers other than the data acquired by the first data acquisition unit 221. Thus, the information processing apparatus 20 can prefetch a layer having a high degree of association collected at that time, based on the history of the layers that have been combined in the past. Therefore, the information processing apparatus 20 can easily reproduce the combination of layers used previously.

  Note that the information processing apparatus 20 quantifies the degree of association between layers on the basis of the degree of association between layers or the degree of association between layers in advance and the history information of layers synthesized in the past, and based on the degree of association The area to be prefetched or the layer to be prefetched may be determined.

  In addition, the information processing apparatus 20 may prefetch the relevant layer based on the proximity (strong if it is in contact; weak as it gets away) of the position where the thumbnail images of the layers are arranged and displayed.

  As described above, the information processing apparatus 20 according to the present embodiment includes data of a layer of a surrounding area where movement from the display area of the map displayed in the information providing apparatus 10 is predicted, a layer being displayed, and the like. Prefetching highly relevant layer data can improve the performance of information collection and improve the speed of displaying data. Even when analysis of a narrow area is performed in the information providing apparatus 10, prefetching the surrounding information in anticipation of movement of the display area of the map or enlargement of the scale enables immediate movement of the map or change of the scale. It can correspond to

  As mentioned above, although one embodiment of this invention was described in detail with reference to drawings, a specific structure is not restricted to the above-mentioned thing, Various design changes etc. in the range which does not deviate from the summary of this invention It is possible to For example, the configurations described in the above first to third embodiments can be arbitrarily combined. In the following description, the information processing system 1, 1A, and 1B will be described as the information processing system 1 unless otherwise specified. Further, when the information processing devices 20, 20A, and 20B are not particularly distinguished, they are described as the information processing device 20.

  Note that the information processing apparatus 20 may aggregate and summarize data of each layer in accordance with the scale of the map serving as the base. For example, the information processing device 20 calculates the truncation accuracy of the latitude and longitude information based on the scale and the resolution of the map (the number of pixels in the vertical and horizontal directions), collects several objects in the layer, and generates an image of the layer. Some of the objects may be summarized so that the objects can be displayed superimposed on the map. Alternatively, the information processing apparatus 20 may display a predetermined number of objects, and when the overlapping area of the displayed objects exceeds the designated ratio, switch to processing to combine subsequent objects. Further, when the display mode of the object is a point, the information processing apparatus 20 may convert the circle into a circle having a radius proportional to the number of points and display the circle. Further, if the display mode of the object is an area made of a plurality of colors, the information processing apparatus 20 may be mixed and displayed at a color ratio proportional to the area.

  Further, the information processing apparatus 20 may change the display area for each thumbnail of each layer according to the purpose. For example, the information processing apparatus 20 may change the scale and the display position according to the contents of the information of each layer without making the thumbnail images of all the layers have the same scale. For example, in the layer of rainfall mesh information indicating the amount of rainfall for each area, for example, when the range of 1 km × 1 km is displayed in the same color (that is, the same rainfall), the entire layer screen may be displayed. Is the same color and does not make sense. In that case, the information processing device 20 changes the scale to display a wide area, and displays a thumbnail image so that a change in rainfall is known.

  In addition, the information processing device 20 may display the image of the layer in response to the change due to the elapsed time. For example, the information processing apparatus 20 may change the display content in response to the change in the content of the information such as the position and the color as time passes. As an example, in the layer of rainfall mesh information, the information processing device 20 changes color information of each mesh representing a change in rainfall with the passage of time in accordance with the content of the information each time. In addition, the information processing apparatus 20 may acquire the position information of the local worker and display the movement progress.

  In addition, each structure with which the information processing system 1 mentioned above is provided can be disperse | distributed or centralized to arbitrary computer apparatuses, and can be arrange | positioned. For example, the information providing apparatus 10 and the information processing apparatus 20 are arbitrary according to the cloud environment, the network environment, the scale of the number of users, the number and specifications of hardware prepared for configuring the information processing system 1, and the like. It can be distributed or concentrated on computer devices. In addition, the storage units provided in the server devices of the information providing device 10 and the information processing device 20 may be provided in server devices different from the server devices. Further, the information providing device 10 and the information processing device 20 may be configured as an integrated server device.

  Note that at least a part of the functions of the information providing device 10 and the information processing device 20 in the above-described embodiment may be realized by a computer. In that case, a program for realizing this function may be recorded in a computer readable recording medium, and the program recorded in the recording medium may be read and executed by a computer system. Here, the “computer system” is a computer system built in the information providing device 10 and the information processing device 20, and includes an OS and hardware such as peripheral devices. The term "computer-readable recording medium" refers to a storage medium such as a flexible disk, a magneto-optical disk, a ROM, a portable medium such as a ROM or a CD-ROM, or a hard disk built in a computer system. Furthermore, the “computer-readable recording medium” is one that holds a program dynamically for a short time, like a communication line in the case of transmitting a program via a network such as the Internet or a communication line such as a telephone line. In such a case, a volatile memory in a computer system serving as a server or a client may be included, which holds a program for a predetermined time. The program may be for realizing a part of the functions described above, or may be realized in combination with the program already recorded in the computer system.

  In addition, part or all of the information providing apparatus 10 and the information processing apparatus 20 in the above-described embodiment may be realized as an integrated circuit such as a large scale integration (LSI). Further, each functional block of the information providing device 10 and the information processing device 20 may be individually processorized, or part or all may be integrated and processorized. Further, the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible. In the case where an integrated circuit technology comes out to replace LSI's as a result of the advancement of semiconductor technology, integrated circuits based on such technology may also be used.

  1, 1A, 1B information processing system, 10 information providing device, 11 projector, 12 digital sheet, 13 digital pen, 20, 20A, 20B information processing device, 21 sub display, 30 external database, 210 display information acquisition unit, 220, 220B data acquisition unit, 221 first data acquisition unit, 222 second data acquisition unit, 230, 230A layer image generation unit, 231 determination unit, 232 conversion unit, 240 storage unit, 250 display control unit, 260 selection unit, 270 image Output unit, 271 extraction unit, 272 combining unit

Claims (15)

The information processing apparatus
A data acquisition unit that acquires data of each layer from an external database;
A first display control unit configured to individually overlap and display an image of each layer based on the data of each layer acquired by the data acquisition unit on a map and individually;
An image output unit for outputting an image of a selected layer among the images of the respective layers displayed on the display unit to an information providing device;
Equipped with
The information providing apparatus
And a second display control unit configured to display the image of the layer output from the image output unit so as to overlap the map.
Information processing system. The information processing apparatus
And a display information acquisition unit that acquires display information on a display area of the map displayed by the second display control unit.
The first display control unit
The image of each layer of the part corresponding to the display information acquired by the display information acquisition unit is individually superimposed on the map and displayed.
The information processing system according to claim 1. The display information includes position information indicating the position of the map displayed by the second display control unit,
The first display control unit individually displays an image of each layer of a portion corresponding to the position information on a map separately.
The information processing system according to claim 2. The display information includes information indicating the range or magnification of the map displayed by the second display control unit,
The first display control unit individually displays an image of each layer of a portion corresponding to the range or the magnification on a map separately.
The information processing system according to claim 2 or claim 3. When the display information changes, the first display control unit causes the image of each layer of the portion changed according to the change to be individually superimposed on the map and displayed.
The information processing system according to any one of claims 2 to 4. A selection unit for selecting a portion in the image of each layer displayed by the first display control unit;
An extraction unit that extracts a portion selected by the selection unit;
Equipped with
The image output unit outputs an image of a portion extracted by the extraction unit.
The information processing system according to any one of claims 1 to 5. The selection unit is
The selection range input by the user or the target input by the user is selected as the part,
The information processing system according to claim 6. A storage unit storing history information of the portion selected by the selection unit;
The selection unit selects the portion based on history information stored in the storage unit.
The information processing system according to claim 6. The information processing apparatus
A conversion unit configured to convert an image of at least one of the images of each layer based on the data of each layer acquired by the data acquisition unit;
The first display control unit
Displaying an image of a layer including the image converted by the conversion unit on a map;
The information processing system according to any one of claims 1 to 8. The information processing apparatus
The data acquisition unit further includes a determination unit that determines whether or not objects in the image overlap if at least two of the images of each layer are overlapped based on the data of each layer acquired by the data acquisition unit.
The conversion unit converts an image of at least one of the images of each layer based on the determination result of the determination unit.
The information processing system according to claim 9. The information processing apparatus
A determination unit that determines whether colors in a predetermined image area are the same or similar when overlapping at least two of images of each layer based on data of each layer acquired by the data acquisition unit; Equipped
The conversion unit converts an image of at least one of the images of each layer based on the determination result of the determination unit.
The information processing system according to claim 9. The conversion unit converts the color of at least a part of images of at least one of the images of each layer based on the determination result of the determination unit.
The information processing system according to claim 10 or 11. The conversion unit converts a graphic in an image into a character or a graph for at least one of the images of each layer based on the determination result of the determination unit.
The information processing system according to claim 10 or 11. The image output unit is
The overlapping order of the images of the selected layer among the images of the layers displayed on the display unit is determined based on the degree of importance preset for each layer.
The information processing system according to any one of claims 1 to 13. The information processing apparatus
A data acquisition step of acquiring data of each layer from an external database;
A first display control step of individually overlaying an image of each layer based on the data of each layer acquired in the data acquisition step on a map and arranging and displaying the image on a display unit;
An image output step of outputting an image of a selected layer among the images of each layer displayed on the display unit to an information providing device;
Have
The information providing apparatus
A second display control step of displaying the image of the layer output by the image output step so as to be superimposed on the map;
Information processing method having.