JP2008083402A - Mobile terminal device, map information display system and map information display method, and information processing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently, accurately, and speedily display map information by using a mobile terminal. <P>SOLUTION: Map data are stored which includes partial image data of a map, and attribute data including content information and area information on structures etc., positioned within a map cover range. Further, the relation between a partial image ID and attribute data IDs of structures etc., positioned within a partial image cover range is stored. A display means of displaying an image corresponding to the range A of the map on the basis of the partial image of the range A selects attribute data corresponding to the range A referring to the relation and sets the attribute value of the selected attribute data within the range of area information, included in the selected attribute data, of range-A corresponding raster data. Then a cursor is displayed on the image corresponding to the range A, element values of the cursor position are acquired from the range-A corresponding raster data, and content information included in the selected attribute data is displayed on condition that the acquired element values are attribute values of the selected attribute data. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for displaying map information using a mobile terminal device such as a mobile phone.

  Conventionally, a geographical information system that makes it possible to perform advanced analysis and quick judgment by comprehensively managing and processing data with position information and attribute data and displaying them visually, using the geographical position as a clue. (GIS: Geographic Information System) is known. In recent years, geographic information systems of a type that display map information on a mobile terminal device, such as a navigation system using a mobile phone, are becoming widespread.

In the geographic information system, various functions are usually realized by combining raster data and vector data. The raster data is map image data read by a scanner, for example, and the vector data is primitive (graphic) data composed of points, lines, polygons, and the like. Specifically, primitive data corresponding to a structure, a specific area, etc. (hereinafter referred to as “structure, etc.”) is defined on the map image data, and attribute information or additional information (hereinafter, “structure”) is added to the primitive data. , Collectively referred to as “POI information”), a function of searching for and displaying related POI information by designating a structure or an area on a map, and the like are realized.
Japanese Patent Publication

  In general, map image data has an enormous amount of data, and a large amount of primitives and their POI information are set in urban areas, etc., so the management, retrieval, display, etc. of these data are efficiently executed for the geographic information system. This is a very important factor.

  In particular, when displaying map information using a mobile terminal device, there are restrictions peculiar to the mobile terminal device, such as restrictions on specifications such as CPU power and memory capacity, and the program execution environment such as floating point arithmetic cannot be performed. Since restrictions are imposed, more ingenuity is required for data management, data retrieval, image display, and the like.

  Accordingly, the present invention provides a new framework capable of performing data management, data search, image display, etc. efficiently and accurately when displaying map information using a mobile terminal device. With the goal.

  The mobile terminal device according to the present invention includes, for a predetermined map image, image data (partial image data) of each partial map image obtained by dividing the map image into a mesh shape, a structure located in the cover range of the map image, and the like Map data storage means for storing map data including content information and attribute data including area information on the map image, and an image corresponding to a predetermined range of the map image is stored in the partial image data included in the map data. A display unit configured to display based on partial image data of a partial map image (range partial map image) at least partly included in the predetermined range, wherein the map data storage unit includes identification information of the partial map image, , Storing a correspondence relationship with the identification information of the attribute data such as a structure at least part of which is located in the cover range of the partial map image, the display means, The range specified by the region information included in the selected attribute data of the raster data secured corresponding to the predetermined range is selected by referring to the correspondence relationship and selecting the attribute data corresponding to the range partial map image A raster data setting means for setting an attribute value corresponding to the selected attribute data in the element, a cursor display means for displaying a cursor on an image corresponding to the predetermined range, and the raster data, Cursor position attribute value acquisition means for acquiring an attribute value of an element corresponding to the cursor position, and on the condition that the acquired attribute value is an attribute value corresponding to the selected attribute data, Attribute data reference means for displaying the included content information.

  Preferably, the attribute data reference unit is configured such that the acquired attribute value is an attribute value corresponding to the selected attribute data, and the content information included in the selected attribute data includes identification information of another map. When it includes, it controls so that a display process may be performed about this other map.

  Further preferably, the attribute data reference unit is configured such that the acquired attribute value is an attribute value corresponding to the selected attribute data, and content information included in the selected attribute data includes URL information. The browser control based on the URL information is controlled.

  Preferably, the predetermined range can be set based on a user input.

  Preferably, the attribute data is associated with one or more of a plurality of layers to be set, and the raster data setting unit is configured to display a layer to be displayed among the attribute data corresponding to the range partial map. The attribute data associated with is selected. In this case, it is desirable that the display target layer can be specified based on the user input.

  The map information display system of the present invention is a map information display system comprising at least one server and at least one portable terminal device of the present invention, wherein the portable terminal device Map data acquisition means for transmitting a map data download request and storing the map data acquired in response to the request in the map data storage means, the server for a predetermined map image, a partial map of the map image A map data database for storing map data including partial image data of an image, attribute information including content information of a structure or the like located in a cover range of the map image, and region information on the map image, and the portable terminal The download request is received from the device, and the map data specified by the request is converted to the map data data. Is read out from the base, characterized in that it includes a map data distribution means for distributing to the portable terminal device.

  According to the map information display method of the present invention, for a predetermined map image, image data (partial image data) of each partial map image obtained by dividing the map image into a mesh shape, a structure positioned in the cover range of the map image, and the like The map data storage means for storing the map data including the content information and the attribute data including the area information on the map image, and the map data includes an image corresponding to a predetermined range of the map image A display step of displaying based on partial image data of a partial map image (range partial map image) at least part of which is included in the predetermined range, wherein the map data storage means identifies the partial map image Storing the correspondence relationship between the information and the identification information of the attribute data such as a structure at least a part of which is located in the cover range of the partial map image, Referring to the correspondence, the attribute data corresponding to the range partial map image is selected, and the raster data prepared corresponding to the predetermined range is specified by the area information included in the selected attribute data. A raster data setting step of setting an attribute value corresponding to the selected attribute data in an element within the range to be selected, a cursor display step of displaying a cursor on an image corresponding to the predetermined range, and referring to the raster data The cursor position attribute value acquisition step of acquiring the attribute value of the element corresponding to the cursor position, and the selected attribute condition that the acquired attribute value is an attribute value corresponding to the selected attribute data An attribute data reference step for displaying content information included in the attribute data.

  The information processing program of the present invention is characterized by causing each step of the map information display method of the present invention to be executed on a mobile terminal device. The information processing program of the present invention can be installed or loaded on a portable terminal device by downloading it through various recording media such as a CD-ROM, a magnetic disk, and a semiconductor memory, or via a communication network.

  In this specification, the term “means” does not simply mean a physical means, but also includes a case where the functions of the means are realized by software. Further, the function of one means may be realized by two or more physical means, or the functions of two or more means may be realized by one physical means.

  According to the present invention, it is possible to provide a new framework capable of performing data management, data search, image display, and the like efficiently and accurately when displaying map information using a mobile terminal device. Can do.

(First embodiment)
Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of a map information display system 100 according to an embodiment of the present invention. As shown in the figure, the map information display system 100 includes a map data server 1 that distributes map data, a portable terminal device 2 that displays map information based on the distributed map data, and the like. The map data server 1 and the mobile terminal device 2 include a predetermined communication network N (which may be any of LAN, the Internet, a dedicated line, a packet communication network, a combination thereof, and includes both wired and wireless). Via the network. In addition, the number of the map data server 1 and the portable terminal device 2 can be changed according to design.

  Such a map information display system can be configured using, for example, the technology of a conventional Web application server system. In this case, when the map data server 1 functions as a Web server or a database server and receives a predetermined request transmitted according to, for example, the HTTP protocol from the mobile terminal device 2 functioning as a client, the map data server 1 performs processing according to the predetermined request. The processing result is transmitted to the portable terminal device 2.

  FIG. 2A is a block diagram showing a hardware configuration of the map data server 1. As shown in FIG. 2A, the map data server 1 includes hardware such as a CPU, a ROM, a RAM, an external storage device, a user interface such as a keyboard and a liquid crystal display, and a communication interface. An information processing apparatus can be used. Note that the map data server 1 may be constituted by a single information processing device or may be constituted by a plurality of information processing devices distributed on a network.

  FIG. 2B is a block diagram showing a functional configuration of the map data server 1. As shown in FIG. 2B, the map data server 1 includes functional means such as a map data database 10, map data distribution means 11, map list storage means 12, and the like. Each of these functional means is realized by the CPU of the map data server 1 executing a predetermined information processing program stored in a ROM, a RAM, an external storage device or the like.

  FIG. 3A is a block diagram illustrating a hardware configuration of the mobile terminal device 2. As shown in FIG. 3A, the mobile terminal device 2 includes hardware such as a CPU, a ROM, a RAM, a user interface such as a keypad and a liquid crystal panel, and a communication interface. Or a PDA.

  FIG. 3B is a block diagram illustrating a functional configuration of the mobile terminal device 2. As shown in FIG. 3B, the portable terminal device 2 includes functional means such as menu means 20, map data acquisition means 21, map data storage means 22, map information display means 23, and Web browser means 24. . The map information display means 23 includes raster data setting means, cursor display means, cursor position attribute value acquisition means, link data reference means, and the like. Among these, the menu means 20 to the map information display means 23 are such that the CPU of the mobile terminal device 2 executes an information processing program based on the present invention stored in a ROM, RAM, external storage device, etc. 2 is realized as a map information display application that operates on the computer. The web browser means 24 is a conventional web browser module for a portable terminal device.

  Hereinafter, the configuration and operation of the map information display system 100 will be described in detail.

  First, the map data database 10, the map data storage means 22, and the map data file used in this embodiment will be described with reference to FIG. 4 and FIG.

  The map data database 10 stores map names, map data files, etc. in association with IDs (identification information) of maps (including normal maps, floor maps in buildings, route maps of subways, etc.). (See FIG. 4A).

  Further, the map data storage means 22 uses the map data files (three in the figure, Yurakucho map, Asakusa sightseeing map, and Haneda 3F map) acquired by the user among the map data files stored in the map data database 10. It is stored in association with the ID (see FIG. 4B).

  The map data file stored in the map data database 10 and the map data storage means 22 includes a FAT (File Allocation Table), a partial image data part, a link data part, a correspondence data part, etc. (FIG. 4 ( c)).

  The FAT is a table for managing the position and the like of each data included in the map data file, and can be configured in the same manner as the FAT in the conventional file system.

  The partial image data portion is a data portion in which image data (partial image data) of each partial map image obtained by dividing the corresponding map image into a mesh shape is stored. The image data portion of the present embodiment is configured to include partial image data, coordinate information of a partial map in the map image local coordinate system, and the like in association with the partial map image ID (see FIG. 5A).

  The partial image data can be created by cutting out a corresponding portion from the image data of the entire map provided in the market, for example, and its size (mesh size) can be determined according to the design. It can be considered to be × 240 pixels. In addition, the data format of the partial image may be, for example, the JPEG format.

  The link data portion is a data portion in which attribute data (hereinafter referred to as “link data”) of structures and the like located in the cover range of the corresponding map image (the ground range drawn on the map image) is stored. The link data portion of the present embodiment is configured to include title information, content information, content type information, area information on a map image, layer ID, and the like in association with the link data ID (see FIG. 5B). ).

  The title information is, for example, information on the name of the structure or the content name. The content information includes POI information such as a structure (for example, if the structure is a restaurant or the like, a store image, opening time, recommended product information, etc.), a map map related to the structure, etc. It is information of any type of URL (Uniform Resource Locator) information related to ID information, structures, etc., and the content type information describes the type of the content information.

  The area information on the map image is information describing a polygon area on the map image, and includes, for example, information on vertex coordinates in the map image local coordinate system of the polygon area. In principle, the polygonal area is set so as to correspond to the ground area occupied by the structure or the like, but may be set to a predetermined shape (for example, a flag icon shape) regardless of the ground area. Moreover, it is not restricted to a polygon area | region, It is good also as a point area | region and a line area | region.

  A layer is a concept for controlling display / non-display of link data in units of groups, and a plurality of layers are set in principle. Each piece of link data is associated with one or more layers, and the layer ID of the associated layer is stored in the link data portion. In the present embodiment, as will be described later, POI information is displayed for link data corresponding to a layer designated as a display target.

  The correspondence data portion is a data portion in which the correspondence between the partial map and the link data is stored. The correspondence data section of this embodiment includes a table that stores the correspondence between the partial map image ID and the link data ID of a structure or the like that is at least partially located in the cover range of the partial map. (See FIG. 5 (c)). As will be described later, by referring to such a table, it is possible to quickly search and read out link data such as structures located in the partial map.

  Note that the data structures shown in FIGS. 4 and 5 are examples, and other data structures may be employed. For example, since the image data part and the correspondence data part are both configured to correspond to the partial map image ID, both may be configured as one data part. Although not shown in FIG. 1, the map information display system 100 may be configured to include a device that creates a map data file having the above data structure.

  Next, a framework for displaying map information using the mobile terminal device 2 will be described with reference to the flowcharts of FIGS. In addition, each process (including the partial process to which the code | symbol is not provided) can be arbitrarily changed in order within the range which does not produce contradiction in the processing content, or can be performed in parallel.

  First, when the user inputs activation of the map information display application to the mobile terminal device 2, the menu means 20 first displays a menu (see FIG. 10A).

  An option 30 for instructing acquisition of the map data file is displayed on the menu, and when the user selects the option, the map data file acquisition process shown in FIG. 6 is executed. On the other hand, a list 31 of map data files acquired by the user in the past is also displayed in the menu. When the user selects a map data file acquired from the list, the map information display shown in FIGS. Processing is executed.

(Map data acquisition process: Fig. 6)
First, the map data acquisition means 21 transmits a map list file request to the map data server 1 (S100).

  When the map data distribution unit 11 of the map data server 1 receives the request for the map list file, the map data distribution unit 11 reads the map list file from the map list storage unit 12 and transmits it to the mobile terminal device 2 that has made the request (S101).

  The map list file includes information describing a map ID, a map name, a data size of the map data file, etc. for a part or all of the map data file stored in the map data database 10 (see FIG. 9).

  Upon receipt of the map list file transmitted in response to the request, the map data acquisition means 21 displays a list of map names, data sizes, etc. for the map data files that can be acquired, and waits for input from the user (S102).

  When the user selects a map data file to be acquired by referring to the list display, the map data acquisition means 21 creates a download request so as to include the ID of the user, the map ID of the map data file selected by the user, and the like. The data is transmitted to the map data server 1 (S103).

  When the map data distribution means 11 of the map data server 1 receives the download request for the map data file, it extracts the map ID from the request and reads out the map data file corresponding to the extracted map ID from the map data database 10. Then, the data is transmitted to the mobile terminal device 2 that has made the download request (S104).

  Upon receiving the map data file transmitted in response to the download request, the map data acquisition means 21 stores it in the map data storage means 22 in association with the map ID (S105). Thereby, the map data acquisition process is ended, and the menu by the menu means 20 is displayed again.

(Map information display processing: FIGS. 7 and 8)
First, the map information display means 23 reads the map data file selected by the user from the map data storage means 22 (S200).

  Next, the map information display means 23 initializes (stores in a RAM or the like) a range (hereinafter referred to as “display range area”) on the map image to be displayed on the liquid crystal panel or the like (S201).

  The display range area can be defined, for example, by determining the upper left vertex coordinates and the vertical and horizontal sizes in the map image local coordinate system. When the vertical and horizontal sizes are determined in advance according to the size and resolution of the liquid crystal panel of the mobile terminal device 2, the display range area can be defined by determining the upper left vertex coordinates.

  The display range area may be initially set so that the center of the map image is displayed, for example, or may be initially set so that a predetermined point is displayed for each map data file.

  Next, the map information display means 23 refers to the image data portion of the read map data file and determines a partial map image (range partial map image) at least partially included in the set display range area ( S202). For example, the partial map image including the four vertices of the display range area is determined, and the partial map image included in the area surrounding the four partial map images is determined as the range partial map image.

  Next, the map information display means 23 is based on the determined partial image data of the range partial map image among the partial image data stored in the image data portion of the read map data file. A map image is displayed (controlled so as to be displayed on a liquid crystal panel or the like of the portable terminal device 2) (S203) (see FIG. 10B and FIG. 11A).

  As described above, in this embodiment, the map image is divided into partial map images, and when the predetermined range of the map image is displayed, the display is performed using the range partial map image related to the display range. Therefore, it is not necessary to expand and hold the entire map image in the image buffer. Therefore, a map image can be efficiently displayed even in a portable terminal device in which restrictions are imposed on CPU power, memory capacity, and the like.

  Moreover, since all the partial map images of the corresponding map image are packaged in the map data file, once the map data file is downloaded, there is no further image data download (and therefore even in an offline state). An arbitrary range of the corresponding map image can be displayed. Further, by implementing such packaging, it is possible to reduce the number of times of communication related to the exchange of map data between the mobile terminal device 2 and the map data server 1, and thus the overhead related to communication can be greatly reduced.

  Next, the map information display means 23 selects, for example, a range partial map image including the center of the display range area from the determined range partial map images (S204), and the correspondence data portion of the read map data file The link data ID associated with the partial map image ID of the selected range partial image is extracted (S205). In S204, two or more range partial map images may be selected.

  Next, the map information display means 23 extracts link data corresponding to the extracted link data ID from the link data portion of the read map data file (S206).

  At this time, when a display target layer is designated based on user input or the like, only link data associated with the layer ID is selected and extracted. On the other hand, if not designated, all the link data corresponding to the extracted link data ID are selected and extracted, assuming that all layers are display target layers.

  Next, the map information display means 23 (raster data setting means) secures an area for cursor position determination raster data for each display target layer on the memory, and adds the cursor position determination attribute to the extracted link data. A value is assigned (S207).

  In addition, when link data ID of several link data with the same layer ID is matched with one partial map image ID (For example, in the example shown to FIG.5 (b), (c), partial map image ID) Link data IDs [L001] and [L080] of two link data having the same layer ID [Y01] are associated with [P002]), and different cursor position determination attribute values are assigned to each link data. Shall.

  The raster data for cursor position determination is, in principle, the same size as the display range area (having elements corresponding to each pixel of the display range area), and each element of raster data takes the attribute value for cursor position determination as the element value (See FIG. 11A).

  The attribute value for cursor position determination is an attribute value used for determining whether or not the cursor displayed on the map image is in the area on the map image such as any structure, for example, red = 1 A number (color value) previously assigned to a color such as blue = 2 can be used as an attribute value.

  If a plurality of link data IDs are extracted in S205, and thus a plurality of link data are extracted in S206, and raster data for cursor position determination corresponding to the same layer ID is already secured, There is no need to secure new raster data for the layer ID.

  Next, the map information display means 23 (raster data setting means) extracts area information on the map image (information on the polygon area 34) from the extracted link data (S208), and determines the secured cursor position. The attribute value for cursor position determination assigned to the extracted link data is set as an element value for each element of the area 35 defined by the extracted area information of the raster data for use (S209) (see FIG. 11B). ). This setting is equivalent to filling the area 35 defined by the extracted area information of the cursor position determination raster data with the color of the cursor position determination attribute value when a color value is used as the attribute value.

  Next, the map information display means 23 (cursor display means) displays the cursor 32 on the map image in the display range area (S210) (see FIG. 10C). The display position of the cursor 32 can be, for example, the center position of the display range area, but may be configured to be moved based on an input from the user.

  Next, the map information display means 23 (cursor position attribute value acquisition means) refers to the set cursor position determination raster data and acquires a raster data element value corresponding to the position of the displayed cursor 32 ( S211).

  Next, the map information display means 23 (link data reference means) determines whether or not the acquired element value matches the attribute value for cursor position determination assigned to the extracted link data (S212). If they do not match, the link flag is set to OFF (S213), and the process proceeds to S215.

  On the other hand, if they match, the map information display means 23 (link data reference means) extracts title information from the extracted link data and displays it on the screen (for example, on the map image in the display range area). At the same time, the link flag is turned on (S214) (see FIG. 10D).

  Some mobile terminal devices such as mobile phones may employ a program execution environment that cannot perform floating-point operations. In such a portable terminal device, usually, an area on a map image of a structure or the like is often calculated by a pseudo-geometric calculation based on an integer calculation. However, an error can be avoided in such calculation. Therefore, although the cursor position is not included in the area on the map image on the display, it may be determined that the cursor position is included or vice versa.

  On the other hand, in the present embodiment, as described above, the cursor position determination raster data having the same size as the display range area is secured, and attribute values are assigned to areas on the map such as structures of the raster data. It is set so that it is determined whether or not the cursor in the display range area is in a map area such as a structure by checking the element value at the cursor position of the raster data. Therefore, even a portable terminal device that cannot perform floating-point arithmetic can accurately determine whether the cursor position is included in the area on the map image.

  Next, the map information display means 23 waits for an input from the user (S215).

  When the display range area movement instruction is input from the user, the map information display unit 23 resets the display range area based on the movement instruction (S216), and returns to S202.

  On the other hand, when a link data reference instruction is input from the user (for example, when a determination key is clicked), the map information display means 23 checks ON / OFF of the link flag (S217), and the link flag is OFF. Returns to S215.

  When the link flag is ON, the map information display means 23 (link data reference means) extracts content type information from the extracted link data, and determines what type the content information is (S218).

  When the content information is a POI information type, the map information display means 23 (link data reference means) extracts the content information (POI information) from the extracted link data and displays it on the screen (S219) ( (Refer FIG.10 (e)). Thereafter, when there is an input for instructing the return to the map image from the user, the map image in the display range area is redisplayed by using cache data (S220), and the process returns to S215.

  If the content information is of the map ID type, the map information display means 23 (link data reference means) extracts the content information (map ID) from the extracted link data, and maps the map data file corresponding thereto to the map. The data is read from the data storage means 22 (S221), and the process returns to S201.

  If the content information is a URL information type, the map information display means 23 (link data reference means) extracts the content information (URL information) from the extracted link data and notifies the web browser means 24 of the content information. Then, the browser processing based on the URL information is controlled (S222). Note that while the browser process is being executed by the Web browser unit 24, the map information display unit may be in a stop or sleep mode, for example.

  As described above, in this embodiment, in addition to the partial image data portion for storing the image data of the partial map image and the link data portion for storing the attribute data such as the structure, the map data file includes the partial map image ID, Since it is configured to include a correspondence data part that stores the correspondence with the link data ID of a structure or the like that is at least partially located in the coverage of the partial map image, the map data file is downloaded once. In this case, when displaying a partial map image, it is possible to search for link data such as structures corresponding to the partial map image at high speed and display by referring to the correspondence relationship.

  In addition, link data is associated with one or more of a plurality of layers, and the link data associated with the display target layer is selected to display the POI information. Therefore, by specifying one or more display target layers, the displayed POI information can be flexibly changed.

(Other)
The present invention is not limited to the above-described embodiment, and can be variously modified and applied.

  For example, as shown in FIG. 10F, an icon 33 or the like indicating that link data is present may be displayed at a position based on the area information of the link data on the map image in the display range area. Good.

  Further, for example, the map information display system 100 may include a framework for charging the user in accordance with the distribution of the map data file. For example, when the map data distribution unit 11 distributes a map data file, the map data distribution unit 11 supplies information including the ID of the distribution destination user, the map ID of the distributed map data file, etc. And the accounting server executes accounting processing for the distribution destination user.

  The same scheme as the conventional scheme can be used for the billing process. For example, in addition to the type of billing scheme that is charged in addition to mobile phone charges, so-called credit card company settlement systems, prepaid billing systems using the Internet, systems that make payments by paying at stores such as convenience stores, etc. A billing scheme using a certain payment processing system can be employed. When these are used, the billing server requests billing procedures by transmitting and receiving to / from the billing / settlement server of each system operating company.

  Moreover, although the said embodiment demonstrated three types of content information, POI information, map ID information, and URL information, you may comprise so that content information of types other than these may be included. Also, for example, in the case of the URL information type, instead of accessing the server by the web browser means 24, the map information display means 23 etc. directly accesses the server based on the URL information to acquire information, The display may be performed in the same manner as the POI information. In this case, as shown in FIG. 9, the map list file includes information indicating such a type (“server access present” information) and is displayed in S102, so that the user refers to the list data. It is possible to select a map data file by grasping whether or not further downloading is necessary when performing.

  Although the description is omitted in the above embodiment, during the execution of the map data acquisition process and the map information display process, it is possible to shift to the menu process or terminate the map information display application at any timing by interruption. . In the menu processing, it is also possible to instruct deletion of the acquired map data file with reference to the displayed list. Further, the instruction that can be input by the user in S215 is not limited to the display range area movement instruction or the link data reference instruction. Although not shown in the flowchart of FIG. 8, the user can instruct the shift to the menu processing, the enlargement / reduction of the map image, the rotation, the designation (switching) of the display target layer, and the like.

1 is a block diagram showing a schematic configuration of a map information display system 100. FIG. 2 is a block diagram showing a configuration of a map data server 1. FIG. 3 is a block diagram showing a configuration of a mobile terminal device 2. FIG. It is a figure for demonstrating the structure of the map data database 10 and the map data storage means 22. FIG. It is a figure for demonstrating the data structure of a map data file. It is a flowchart for demonstrating a map data acquisition process. It is a flowchart for demonstrating map information display processing. It is a flowchart for demonstrating map information display processing. It is a figure for demonstrating a map list file. It is a figure for demonstrating the example of a screen displayed in a portable terminal device. It is a figure for demonstrating the setting method of the raster data for cursor position determination.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Map data server 2 Portable terminal device 10 Map data database 11 Map data delivery means 20 Menu means 21 Map data acquisition means 22 Map data storage means 23 Map information display means 24 Web browser means 100 Map information display system

Claims (9)

With respect to a predetermined map image, image data of each partial map image obtained by dividing the map image into a mesh shape (hereinafter referred to as “partial image data”), content information such as a structure located in the cover range of the map image, and Map data storage means for storing map data including attribute data including area information on the map image;
An image corresponding to a predetermined range of the map image is a portion of a partial map image (hereinafter referred to as “range partial map image”) that includes at least a part of the predetermined image in the partial image data included in the map data. Display means for displaying based on the image data,
The map data storage means stores the correspondence between the identification information of the partial map image and the identification information of the attribute data such as a structure that is at least partially located in the cover range of the partial map image,
The display means includes
A range specified by area information included in the selected attribute data of raster data secured corresponding to the predetermined range by selecting attribute data corresponding to the range partial map image with reference to the correspondence relationship Raster data setting means for setting an attribute value corresponding to the selected attribute data in an element in
Cursor display means for displaying a cursor on an image corresponding to the predetermined range;
A cursor position attribute value acquisition unit that refers to the raster data and acquires an attribute value of an element corresponding to the position of the cursor;
And a mobile device comprising: attribute data reference means for displaying content information included in the selected attribute data on condition that the acquired attribute value is an attribute value corresponding to the selected attribute data. Terminal device.   When the acquired attribute value is an attribute value corresponding to the selected attribute data, and the content information included in the selected attribute data includes identification information of another map, 2. The portable terminal device according to claim 1, wherein display control is performed so that display processing is performed for the other map.   When the acquired attribute value is an attribute value corresponding to the selected attribute data and the content information included in the selected attribute data includes URL information, the attribute data reference unit includes the URL information. 3. The mobile terminal device according to claim 1, wherein control is performed so that browser processing based on the browser processing is performed.   The portable terminal device according to claim 1, wherein the predetermined range can be set based on a user input. The attribute data is associated with one or more layers among a plurality of set layers,
The raster data setting unit selects attribute data associated with a display target layer from among attribute data corresponding to a range partial map. Mobile terminal device.   6. The portable terminal device according to claim 5, wherein a display target layer can be designated based on a user input. A map information display system comprising at least one server and at least one portable terminal device according to any one of claims 1 to 6,
The portable terminal device
A map data acquisition unit that transmits a map data download request to the server and stores the map data acquired in response to the request in the map data storage unit,
The server
For a predetermined map image, a map including partial image data of the partial map image of the map image, and attribute data including content information such as structures located in the cover range of the map image and area information on the map image A map data database for storing data;
Map data distribution means for receiving the download request from the mobile terminal device, reading out map data specified by the request from the map data database, and distributing the map data to the mobile terminal device. Map information display system. With respect to a predetermined map image, image data of each partial map image obtained by dividing the map image into a mesh shape (hereinafter referred to as “partial image data”), content information such as a structure located in the cover range of the map image, and The map data storage means for storing the map data including the attribute data including the area information on the map image, and the image corresponding to the predetermined range of the map image is selected from the partial image data included in the map data A display step of displaying based on partial image data of a partial map image (hereinafter referred to as “range partial map image”) at least partly included in the predetermined range,
The map data storage means stores the correspondence between the identification information of the partial map image and the identification information of the attribute data such as a structure that is at least partially located in the cover range of the partial map image,
The display step includes
A range specified by area information included in the selected attribute data of raster data prepared corresponding to the predetermined range by selecting attribute data corresponding to the range partial map image with reference to the correspondence relationship A raster data setting step for setting an attribute value corresponding to the selected attribute data in an element in
A cursor display step of displaying a cursor on an image corresponding to the predetermined range;
A cursor position attribute value acquisition step of referring to the raster data and acquiring an attribute value of an element corresponding to the position of the cursor;
An attribute data reference step for displaying content information included in the selected attribute data on the condition that the acquired attribute value is an attribute value corresponding to the selected attribute data Information display method. An information processing program for causing a computer to execute the map information display method according to claim 7.

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