JP2014115504A - Map display system, terminal device, server device, map display method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a map display system, a terminal device, a server device, a map display method, and a program which can appropriately control map display when it is possible to acquire map information from both terminal device and server device.SOLUTION: A terminal device is configured to: perform control to output first map information stored in the terminal device or second map information stored in a server device, to a display unit; perform control to receive reference position information of a map to be output to the display unit by requiring a user to perform an input operation via an input unit; calculate a reading range of the first map information on the basis of the reference position information; read out the first map information within the reading range; transmit an acquisition request for the second map information according to the reference position information; and receive the second map information transmitted from the server device in response to the acquisition request. The reading range of the first map information is larger than a range of the second map information to be received.

Description

  The present invention relates to a map display system, a terminal device, a server device, a map display method, and a program.

  Conventionally, there is a technique for reading map data over a wide area from a display area so that smooth map display can be performed.

  For example, Patent Literature 1 receives matching map data from a server according to prefetching conditions and priorities of map information that is likely to be specified next in order to reduce a decrease in response speed to a user operation. The technology to keep is disclosed.

  Further, in Patent Document 2, in order to realize smooth and high-speed map scrolling, map units to be expanded are extracted in accordance with the optimal map unit expansion order, expanded in the back area, and set as the scroll limit point in the front screen area. It is disclosed that the map development image required next from the back screen is divided / transferred to the front screen when it reaches.

JP 2010-122111 A JP-A-8-314373

  However, the conventional map display technology has a problem that it cannot be applied when map information can be acquired from either the terminal side or the server side.

  For example, in the technology described in Patent Document 1, since it is necessary to download prefetched map data from the server every time, it involves downloading unnecessary map data that is not displayed as a result, resulting in an increase in communication cost. Had.

  Further, since the technique described in Patent Document 2 uses only a local map stored in the terminal device, for example, when the latest map data is stored in the server, the latest map cannot be displayed. Was.

  The present invention has been made in view of the above problems, and can perform suitable map display control when map information can be acquired from both a terminal and a server, a map display system, a terminal device, and a server device An object of the present invention is to provide a map display method and a program.

  In order to achieve such an object, a map display system of the present invention includes a server device including at least a storage unit and a control unit, and a terminal device including at least an input unit, a display unit, a storage unit, and a control unit. A map display system communicably connected, wherein the storage unit of the terminal device includes first map information storage means for storing first map information that is first map information, and the server device includes the first map information storage unit. The storage unit includes a second map information storage unit that stores second map information that is second map information, and the control unit of the terminal device stores the first map information or the second map information. Output control means for controlling the output to the display section, input control means for controlling the reference position information of the map output to the display section to be input by a user's operation via the input section, and the reference Based on location information The first map information reading range is calculated, the first map information of the reading range is read from the first map information storage means, and the first map information reading means and the reference position information An acquisition request transmitting means for transmitting an acquisition request for two map information; and a second map information receiving means for receiving the second map information transmitted from the server apparatus, wherein the control unit of the server apparatus comprises: An acquisition request receiving means for receiving the acquisition request transmitted from the terminal device; a second map information acquiring means for acquiring second map information from the second map information storage means based on the acquisition request; And second map information transmitting means for transmitting the second map information acquired by the second map information acquiring means to the terminal device, wherein the reading range of the first map information is received. Second map It is larger than the range of distribution.

  The map display system of the present invention is characterized in that, in the map display system described above, the output control means preferentially displays the second map information with respect to the first map information.

  The map display system according to the present invention is the map display system described above, wherein the acquisition request transmission means is controlled by the input control means so that an operation on the map output to the display unit by the user is performed under a predetermined condition. When the above condition is satisfied, the acquisition request for the second map information is transmitted using the center position of the map display area of the display unit as the reference position information.

  Further, the map display system of the present invention is the map display system described above, wherein the acquisition request transmitting unit is configured to display the display unit when the scroll operation by the user is stationary for a predetermined time or more by the input control unit. The acquisition request for the second map information is transmitted using the center position of the map display area as the reference position information.

  Further, the map display system of the present invention is the map display system described above, wherein the acquisition request transmitting means is configured to display the display unit when the scale changing operation by the user is stationary for a predetermined time or more by the input control means. The acquisition request for the second map information at the scale after the change is transmitted using the center position of the map display area as the reference position information.

  The map display system of the present invention is the map display system described above, wherein the first map information reading means calculates the reading range based on an operation of the user under the control of the input control means. It is characterized by.

  The terminal device of the present invention is a terminal device including at least an input unit, a display unit, a storage unit, and a control unit, which is communicably connected to a server device including at least a storage unit. The storage unit includes first map information storage means for storing first map information that is first map information, and the storage unit of the server device stores second map information that is second map information. A second map information storage means for storing, and the control unit outputs the first map information or the second map information to the display unit, and a user through the input unit. The input control means for controlling the reference position information of the map output to the display unit to be input by the operation, and the reading range of the first map information is calculated based on the reference position information, and the reading range The first map information of the above A first map information reading unit that reads from the map information storage unit; an acquisition request transmission unit that transmits an acquisition request for the second map information according to the reference position information; and the acquisition request that is transmitted from the server device. Second map information receiving means for receiving the second map information acquired from the second map information storage means based on the second map information, the read range of the first map information is received second map information It is characterized by being larger than the range.

  The server device of the present invention is a server device including at least a storage unit and a control unit, which is communicably connected to a terminal device including at least an input unit, a display unit, and a storage unit. The storage unit includes first map information storage means for storing first map information that is first map information, and the storage unit of the server device stores second map information that is second map information. 2nd map information storage means to memorize | store, The said control part is a reference | standard of the map output to the said display part input by the user's operation via the said input part transmitted from the said terminal device Based on the acquisition request received by the acquisition request receiving means, the acquisition request receiving means for receiving the acquisition request for the second map information corresponding to the position information, and the second map information from the second map information storage means. Second to get information The second map information acquired by the figure information acquiring means and the second map information acquiring means, or the first map information of the reading range based on the reference position information is displayed on the display section. Second map information transmitting means for transmitting the second map information, wherein the read range of the first map information is larger than the range of the received second map information.

  The map display method of the present invention is a map display in which a server device including at least a storage unit and a control unit, and a terminal device including at least an input unit, a display unit, a storage unit, and a control unit are communicably connected. A map display method executed in the system, wherein the storage unit of the terminal device includes first map information storage means for storing first map information which is first map information, and the server device includes the first map information storage unit. The storage unit includes a second map information storage unit that stores second map information that is second map information, and is executed by the control unit of the terminal device. The first map information or the second map A reference position of a map output to the display unit by an output control step for controlling output of the information to the display unit and a user operation via the input unit, which is executed by the control unit of the terminal device information An input control step for controlling input, and a read range of the first map information calculated by the control unit of the terminal device based on the reference position information, and the first map of the read range A first map information reading step for reading information from the first map information storage means, and a request for acquiring the second map information according to the reference position information executed by the control unit of the terminal device. An acquisition request transmission step, an acquisition request reception step of receiving the acquisition request transmitted from the terminal device, executed by the control unit of the server device, and executed by the control unit of the server device; Based on the acquisition request, a second map information acquisition step for acquiring second map information from the second map information storage means, and a control unit of the server device. Executed by the second map information transmitting step for transmitting the second map information acquired in the second map information acquiring step to the terminal device, and the control unit of the terminal device, A second map information receiving step for receiving the second map information transmitted from the server device, wherein the reading range of the first map information is larger than a range of the received second map information It is characterized by.

  In addition, the map display method of the present invention is a map display method that is executed in a terminal device that includes at least an input unit, a display unit, a storage unit, and a control unit, and is communicably connected to a server device that includes at least a storage unit. And the said memory | storage part of the said terminal device is provided with the 1st map information storage means which memorize | stores the 1st map information which is 1st map information, The said memory | storage part of the said server apparatus is a 2nd map Output control for controlling output of the first map information or the second map information to the display unit, the second map information storing unit storing second map information as information. An input control step for controlling the reference position information of the map output to the display unit to be input by a user operation via the input unit, and the first map based on the reference position information information A first map information reading step of calculating a reading range and reading the first map information of the reading range from the first map information storage means, and an acquisition request for the second map information according to the reference position information. An acquisition request transmitting step for transmitting, and a second map information receiving step for receiving the second map information acquired from the second map information storage means based on the acquisition request transmitted from the server device. The reading range of the first map information is larger than the range of the received second map information.

  The map display method of the present invention is a map display method that is executed in a server device having at least a storage unit and a control unit, which is communicably connected to a terminal device having at least an input unit, a display unit, and a storage unit. And the said memory | storage part of the said terminal device is provided with the 1st map information storage means which memorize | stores the 1st map information which is 1st map information, The said memory | storage part of the said server apparatus is a 2nd map Second map information storage means for storing second map information as information, which is transmitted from the terminal device, which is executed by the control unit, and is input by a user operation via the input unit The acquisition request receiving step for receiving the acquisition request for the second map information corresponding to the reference position information of the map output to the display unit, and the acquisition request received in the acquisition request receiving step, the above A second map information acquisition step for acquiring the second map information from the two map information storage means, the second map information acquired in the second map information acquisition step, or a reading range based on the reference position information A second map information transmitting step for transmitting the second map information so that the first map information is displayed on the display unit, and the reading range of the first map information is received. Larger than the range of the second map information.

  In addition, the program of the present invention is a program for causing a terminal device including at least an input unit, a display unit, a storage unit, and a control unit, which is communicably connected to a server device including at least a storage unit, to execute the program. The storage unit of the terminal device includes first map information storage means for storing first map information that is first map information, and the storage unit of the server device is second map information. An output control step for controlling output of the first map information or the second map information to the display unit in the control unit; and the input unit. An input control step for controlling the reference position information of the map output to the display unit to be input by the user's operation via the, and the reading range of the first map information is calculated based on the reference position information. A first map information reading step for reading the first map information of the reading range from the first map information storage means, and an acquisition request for transmitting an acquisition request for the second map information according to the reference position information. A program for executing a transmission step and a second map information reception step for receiving the second map information acquired from the second map information storage means based on the acquisition request transmitted from the server device. Thus, the reading range of the first map information is larger than the range of the received second map information.

  Further, the program of the present invention is a program for causing a server device including at least a storage unit and a control unit, which is connected to a terminal device including at least an input unit, a display unit, and a storage unit, to perform communication. The storage unit of the terminal device includes first map information storage means for storing first map information that is first map information, and the storage unit of the server device is second map information. Second map information storage means for storing second map information, and output to the display unit, which is transmitted from the terminal device by the user's operation via the input unit in the control unit. An acquisition request receiving step for receiving the acquisition request for the second map information according to the reference position information of the map to be executed, and the second map information description based on the acquisition request received at the acquisition request receiving step. A second map information acquisition step for acquiring the second map information from the means, the second map information acquired in the second map information acquisition step, or the first of the reading range based on the reference position information A second map information transmitting step for transmitting the second map information so that the map information is displayed on the display unit, wherein the reading range of the first map information is received It is characterized by being larger than the range of the second map information.

  According to this invention, the terminal device stores the first map information, the server device stores the second map information, and the terminal device controls the output of the first map information or the second map information on the display unit. Then, control is performed so that the reference position information of the map output to the display unit is input by the user's operation via the input unit, and the reading range of the first map information is calculated based on the reference position information. Read the first map information in the reading range, send the second map information acquisition request according to the reference position information, receive the second map information sent from the server device, the server device from the terminal device The acquisition request transmitted is received, the second map information is acquired based on the acquisition request, the acquired second map information is transmitted to the terminal device, and the read range of the first map information is received first It is characterized by being larger than the range of two-map information. Thereby, this invention produces an effect that suitable map display control can be performed when map information is acquirable from both a terminal and a server. In particular, the present invention does not have a large-capacity storage or memory on the local (terminal device) side, and even when applied to a terminal device that stores only small or unupdated second map information, the data amount Since the relatively large or the latest second map information is downloaded with the minimum necessary amount, it is possible to suppress an increase in the communication amount as well as a smooth map display by prefetching.

  Further, in the above, since the second map information is preferentially displayed with respect to the first map information in the above, the first map information being displayed at the stage when the second map information can be received from the server device. The display can be switched and displayed, and the latest map based on the second map information can be provided.

  In the above, the present invention obtains the second map information using the center position of the map display area of the display unit as the reference position information when an operation on the map output to the display unit by the user satisfies a predetermined condition. Since the request is transmitted, it is possible to control so as not to unnecessarily acquire map information that is not displayed as a result, and it is possible to prevent an increase in communication cost.

  In the above, the present invention transmits the second map information acquisition request using the center position of the map display area of the display unit as the reference position information when the scroll operation by the user is stationary for a predetermined time or more. The effect is that a map request for the second map information is transmitted at the timing when the display area is determined by the operation, map information that is not displayed as a result is not acquired unnecessarily, and an increase in communication cost can be prevented. Play.

  In addition, the present invention provides the second map information acquisition request of the scale after the change with the center position of the map display area of the display unit as the reference position information when the scale change operation by the user is stationary for a certain time or more in the above. As a result, the map request for the second map information is transmitted at the timing when the display area is fixed by the scale changing operation, and as a result, the map information that is not displayed is not acquired unnecessarily, and the communication cost is increased. There is an effect that can be prevented.

  Further, in the above, since the reading range is calculated based on the user's operation, the present invention has an effect that the map information can be read by prefetching the intention to be displayed by the user.

  In the above description, the effect of the map display system of the present invention has been described as an example, but the same effect can be obtained in the terminal device, the server device, the map display method, and the program.

FIG. 1 is a block diagram showing an example of the configuration of the map display system in the present embodiment. FIG. 2 is a flowchart showing an example of basic processing of the map display system in the present embodiment. FIG. 3 is a diagram schematically showing the relationship between the first map information reading area and the second map request area. FIG. 4 is a flowchart illustrating an example of processing by scroll operation in the terminal device 100 of the present embodiment. FIG. 5 is a diagram schematically showing the relationship between the first map information reading area and the second map request area. FIG. 6 is a flowchart illustrating an example of processing by a scale changing operation in the terminal device 100 of the present embodiment. FIG. 7 is a diagram schematically showing the relationship between the first map information read area and the second map request area.

  DESCRIPTION OF EMBODIMENTS Embodiments of a map display system, a terminal device, a server device, a map display method, and a program according to the present invention will be described below in detail with reference to FIGS. Note that the present invention is not limited to the embodiments. However, the embodiment shown below exemplifies a map display system for embodying the technical idea of the present invention, and is not intended to specify the present invention in this map display system. The present invention is equally applicable to the map display systems of other embodiments included in the scope of claims. For example, the form of function distribution on the server side and the terminal side in the map display system exemplified in the present embodiment is not limited to the following, and is functionally or physically distributed in arbitrary units within a range where similar effects and functions can be achieved. -Can be integrated and configured.

[Configuration of map display system]
First, an example of the configuration of the map display system in the present embodiment will be described below with reference to FIG. Here, FIG. 1 is a block diagram showing an example of the configuration of the map display system in the present embodiment, and conceptually shows only the portion related to the present invention in the configuration.

  As shown in FIG. 1, the map display system according to the present embodiment schematically includes a server device 200 including at least a control unit 202 and a storage unit 206, an input unit 116, a display unit 114, and a control unit 102. The terminal device 100 including at least the storage unit 106 is configured to be communicable. The communication is, for example, remote communication such as wired / wireless communication via the network 300, and has a function of mutually connecting the terminal device 100, the server device 200, the external device 600, and the like. , A telephone line network (including a mobile terminal line network and a general telephone line network), an intranet, a power line communication (PLC), and the like. Each unit of the terminal device 100 and the server device 200 is communicably connected via an arbitrary communication path.

[Configuration of Server Device 200]
Here, in FIG. 1, the server device 200 receives the second map information acquisition request transmitted from the terminal device 100, and acquires the second map information from the storage unit 206 based on the received acquisition request. The second map information has a function of transmitting to the terminal device 100. The server device 200 is connected to the terminal device 100 through the communication control interface unit 204 via the network 300 so as to be able to communicate with each other, and includes a control unit 202 and a storage unit 206. The control unit 202 is a control unit that performs various processes, and acquires and transmits second map information. The communication control interface unit 204 is an interface connected to a communication device (not shown) such as an antenna or a router connected to a communication line or a telephone line, and performs communication control between the server device 200 and the network 300. It has a function to perform. That is, the communication control interface unit 204 has a function of communicating data with the terminal device 100 or the like via a communication line. The storage unit 206 is a storage unit such as a fixed disk device, and stores various databases and tables (second map database 206a and the like).

  Among these components of the storage unit 206, the second map database 206a is a second map information storage unit that stores second map information that is second map information (server-side map information). Here, the second map information may be the latest or more detailed map information than the first map information stored in advance in the storage unit 106 of the terminal device 100. As an example, the map information stored in the second map database 206a may be map data such as road maps of the whole country and each region. For example, the map information stored in the second map database 206a includes features displayed on the map (for example, buildings such as buildings, houses and stations, roads, railroads, bridges, tunnels, contour lines, coast lines and lake shore lines. Such as water line, sea, river, lake, pond, swamp, land such as parks and outdoor facilities, administrative boundaries, administrative districts, and districts, etc.) shape data, notes displayed on the map (for example, , Place names, addresses, telephone numbers, names of facilities such as shops, parks and stations, names including famous places such as sights, historic sites, rivers, lakes, bays, mountains, forests, names of roads, bridges, tunnels, route names, Note data of point information and word-of-mouth information, etc., and symbols displayed on the map (for example, map symbols such as mountains, historic sites, temples, schools, hospitals, factories and cemeteries, gas stations, convenience stores, supermarkets) ,restaurant , Store symbols such as banks and post offices, traffic lights, toll road entrances, toll gates, service areas, parking areas and interchange symbols, parking lots, stations, hotels, museums and museum facility symbols, and Data such as a review point symbol). The map data is not limited to map data such as a road map, but may be map information such as a tourist map. Here, the map information may be map data meshed according to a scale (for example, JIS standard first to third regional division mesh data, 100 m mesh data, etc.), and the like. Further, the map data may be map drawing image data such as a raster format or a vector format. These pieces of map information are stored in advance in the second map database 206a, and the control unit 202 of the server device 200 periodically and / or according to processing by the control unit 202 (for example, data in the control unit 202) The latest data is downloaded from the external device 600 (external device such as a map providing server that provides map information) via the network 300 and stored in the second map database 206a. Two map information may be updated. In addition, the storage unit 206 may store POI data, network data, and the like.

  The control unit 202 has an internal memory for storing a control program such as an OS (Operating System), a program that defines various processing procedures, and necessary data. And the control part 202 performs the information processing for performing various processes with these programs. The control unit 202 includes an acquisition request reception unit 202a, a second map information acquisition unit 202b, and a second map information transmission unit 202c in terms of functional concept.

  Among these, the acquisition request receiving unit 202 a is an acquisition request receiving unit that receives an acquisition request for second map information from the terminal device 100.

  The second map information acquisition unit 202b is a second map information acquisition unit that acquires, from the second map database 206a, second map information corresponding to the acquisition request received by the acquisition request reception unit 202a. For example, the second map information acquisition unit 202b acquires the corresponding second map information from the second map database 206a based on the map range, center coordinates, scale, and the like specified in the acquisition request. In addition, when the current position information is added to the acquisition request, the second map information acquisition unit 202b may acquire the second map information corresponding to the current position information from the second map database 206a. The data format of the second map information acquired by the second map information acquisition unit 202b may be a raster format or a vector format. As an example, the second map information acquisition unit 202b stores the vector format in the second map database 206a. When the second map information is stored, the second map information in the vector format may be converted into the raster format at the scale specified in the acquisition request. Here, in the present embodiment, the “scale” is a reduction ratio for drawing a map with a size smaller than the actual size, for example, “1 / 25,000”, “1 / 50,000”, etc. Scale of map, type of mesh section of map data (primary to tertiary mesh section, 100m mesh section, etc.), distance on map displayed per unit pixel of display unit 114 of terminal device 100 (1m, etc.) ). For example, the second map information acquisition unit 202b requests acquisition when the second map information is stored in the second map database 206a with a plurality of mesh sections (primary to tertiary mesh sections, 100m mesh sections, etc.). The second map information of the mesh section designated as the scale in FIG.

  The second map information transmission unit 202 c is a second map information transmission unit that transmits the second map information acquired by the second map information acquisition unit 202 b to the terminal device 100.

[Configuration of Terminal Device 100]
Further, in FIG. 1, the terminal device 100 controls the output of map information (first map information or second map information) to the display unit 114, and displays the map information on the display unit 114 by user operation via the input unit 116. Control is performed so that the reference position information of the output map is input, the read range of the first map information is calculated based on the reference position information, the first map information of the read range is read from the storage unit 106, and the reference position According to the information, the second map information acquisition request is transmitted, and the second map information transmitted from the server device 200 is received. In the present embodiment, the terminal device 100 is connected to the server device 200 via the communication control interface unit 104 via the network 300 so as to be able to communicate with each other. The control unit 202, the storage unit 206, and the display unit 114 are connected. And an input unit 116. Here, the terminal device 100 may include a position acquisition unit 112 having a GPS function, an IMES function, or the like so that current position information can be acquired in real time. The terminal device 100 is, for example, a car navigation device for vehicles that performs car navigation, an information processing device such as a desktop or laptop personal computer that is generally commercially available, a portable navigation device such as a mobile phone, PHS, or PDA. It may be. Here, as the terminal device 100 for a vehicle that performs car navigation, for example, power is supplied from the vehicle, and it is detachably fixed to a vehicle main body such as a dashboard by an attachment or the like, and is largely connected to the device main body (local). It has no capacity storage and can acquire signals (for example, vehicle speed pulse, fuel consumption, etc.) from the vehicle, has a built-in communication module, and can communicate with the server device 200 and the like via the network 300 within the communication range. Yes, it is a device that can also download data such as map data from the server device 200.

  Here, the position acquisition unit 112 may be, for example, a position acquisition unit that receives a position information signal transmitted from the position transmission device 500. Here, the position transmitting device 500 may be a GPS device that transmits a position information signal (GPS signal), and IMES that enables indoor positioning using a position information signal having characteristics similar to those of the GPS signal. It may be an IMES device that implements (Indoor Message System) technology. The IMES technology is a system developed from the framework of the quasi-zenith satellite, which is a positioning satellite system. Further, the position transmission device 500 may be a GPS repeater that transmits a GPS signal received outdoors indoors. Further, the position transmission device 500 may be a small transmission device that is arbitrarily installed on each floor of a building (for example, a multilevel parking lot) or an underground structure (for example, a tunnel, an underground parking lot). Good. In addition, self-position information (position ID etc.) according to an installation place is allocated to this small transmitter. When the terminal device 100 enters the communicable range, the terminal device 100 receives the self-position information transmitted from the small transmitter as a position information signal. The communication method at this time may be, for example, various short-range wireless methods such as an RFID (Radio Frequency Identification) tag system and Bluetooth (registered trademark), an infrared communication method, and the like. Further, the position transmission device 500 may be a wireless LAN access point. In the present embodiment, the location acquisition unit 112 may receive wireless LAN signals and acquire access point identification information. Then, the control unit 102 may acquire the position information by specifying the position of the access point from the identification information unique to the access point acquired by the position acquisition unit 112. In the present embodiment, the control unit 102 may calculate position information including latitude, longitude, and height information from the position information signal acquired by the position acquisition unit 112. Here, the position information may indicate a relative position from a reference position in addition to the absolute position specified by the latitude and longitude.

  Further, the position acquisition unit 112 detects, for example, the acceleration information of the terminal device 100 detected by the acceleration sensor of the position acquisition unit 112, the direction information such as the traveling direction of the terminal device 100 detected by the direction sensor, and the distance sensor. Position information indicating the current position of the user of the terminal device 100 may be acquired based on the distance information and the map data. Here, a geomagnetic sensor that detects the absolute traveling direction of the terminal device 100 and an optical gyro that detects the relative traveling direction of the terminal device 100 may be used as the direction sensor. In addition, the direction sensor may be an electronic compass that can acquire information on the direction and inclination by combining a geomagnetic sensor and an acceleration sensor.

  The display unit 114 includes display means (for example, liquid crystal or organic EL) for displaying the second map information received from the server device 200, the first map information acquired from the first map database 106a, and the like. Display or monitor). The input unit 116 may be input means (for example, a key input unit, a touch panel, a keyboard, a microphone, etc.) for inputting a departure point, a current location, a destination, and the like. The input / output control interface unit 108 controls the position acquisition unit 112, the display unit 114, the input unit 116, and the like.

  The communication control interface unit 104 is an interface connected to a communication device (not shown) such as an antenna or a router connected to a communication line, a telephone line, etc., and communicates between the terminal device 100 and the network 300. It has a function to perform control. That is, the communication control interface unit 104 has a function of communicating data with the server device 200 or the like via a communication line.

  The storage unit 106 is a storage unit such as a fixed disk device or a cache memory, and stores various files, tables, and databases (the first map database 106a and the like).

  Among these, the 1st map database 106a is a 1st map information storage means which memorize | stores the 1st map information which is 1st map information (terminal side map information). The first map information stored in the first map database 106a may store map data that has not been updated or is wider than the second map information stored in the second map database 206a of the server device 200. The first map information may be stored in the storage unit 106 in advance without being updated. In other words, the first map information has a property of being rougher and / or older than the second map information, and the first map information stored in the first map database 106a is the second map information. The data size may be relatively smaller than the second map information stored in the database 206a. The map information is not limited to this, and the map information is stored in advance in the first map database 106a, and the control unit 102 of the terminal device 100 is periodically and / or according to processing by the control unit 102 (for example, control The latest data is downloaded from the external device 600 (external device such as a map providing server that provides map information) via the network 300 and the first map database 106a is downloaded. The stored first map information may be updated. In addition, the storage unit 106 may store POI data, network data, and the like.

  The control unit 102 includes an internal memory for storing a control program such as an OS, a program defining various processing procedures, and necessary data. And the control part 102 performs the information processing for performing various processes by these programs. The control unit 102 includes a current position information acquisition unit 102a, an output control unit 102b, an input control unit 102c, a first map information reading unit 102d, an acquisition request transmission unit 102f, and a second map information reception unit 102g in terms of functional concepts. Configured.

  Among these, the current position information acquisition unit 102 a is a current position information acquisition unit that acquires current position information of a moving body such as a user of the terminal device 100. Here, the current position information acquisition unit 102a may acquire the current position information of a moving body such as a user of the terminal device 100 every predetermined cycle (for example, every second). In addition, the current position information acquisition unit 102a acquires the position information calculated from the position information signal received from the position transmission device 500 by the position acquisition unit 112 as the current position information of a moving body such as a user of the terminal device 100. May be. Here, the current position information acquisition unit 102a may acquire azimuth information such as the traveling direction of the terminal device 100 detected by the azimuth sensor of the position acquisition unit 112 as current position information. Further, the current position information acquisition unit 102a may acquire acceleration information of the terminal device 100 detected by the acceleration sensor of the position acquisition unit 112 as current position information. In addition, the current position information acquisition unit 102a may acquire the position coordinates and the like of the current position input by the user via the input unit 116 as the current position information of the moving body such as the user of the terminal device 100. . Note that the current position input by the user via the input unit 116 may be a position where the user actually exists, and is a virtual current position arbitrarily selected by the user (for example, in Tokyo. It may be an arbitrary point such as an Osaka station or an airport selected by a user. Specifically, the current position information acquisition unit 102a designates on the display screen of the map information displayed on the output unit 114 by the user via the input unit 116 (for example, designation operation on the touch panel type display unit, etc. ) Coordinates may be acquired as the current position information of the user of the terminal device 100. Furthermore, the direction information designated on the display screen of the map information displayed on the output unit 114 by the user via the input unit 116 may be acquired as the current position information of the user of the terminal device 100. Here, the current position information acquisition unit 102a may acquire the date and time information of acquiring the current position information together with the current position information of the user.

  Further, the output control unit 102b controls the display unit 114 to output the first map information read by the first map information reading unit 102d or the second map information received by the second map information receiving unit 102g. Output control means. Here, the output control unit 102b may display the second map information with priority over the first map information. That is, the output control unit 102b displays the first map information when the first map information is read by the first map information reading unit 102d and the second map information is not received by the second map information receiving unit 102g. On the other hand, when the second map information is received by the second map information receiving unit 102g, the second map information may be displayed and output. In other words, the output control unit 102b is read by the first map information reading unit 102d instead of the second map information when the corresponding second map information is not received by the second map information receiving unit 102g. The first map information is displayed on the display unit 114. The output control unit 102b superimposes and displays a current position mark based on the current position information acquired by the current position information acquisition unit 102a on the display screen for displaying the second map information or the first map information. You may let them.

  The input control unit 102 c is an input control unit that controls the reference position information of the map output to the display unit 114 to be input by a user operation via the input unit 116. For example, the reference position information of the map may be data defining the center coordinates, the range (display area), and / or the scale of the map. Here, the input control unit 102c may be controlled so that an input operation by a gesture such as scroll control or scale change control is realized by a user via a mouse or a touch panel type input unit 116. As an example, the input control unit 102c may acquire the reference position information based on the coordinates, speed, acceleration, and the like of the contact point with respect to the input unit 116.

  The first map information reading unit 102d calculates a reading range of the first map information based on the reference position information input under the control of the input control unit 102c, and the first map information in the reading range is converted to the first map. First map information reading means for reading from the database 106a. Here, the reading range of the first map information read by the first map information reading unit 102d is larger than the range of the second map information received by the second map information receiving unit 102g described later. As an example, the range of the received second map information is the display area currently being displayed, while the read range of the first map information may be a wider area than the display area currently being displayed. Good. In order to realize the magnitude relationship between these map ranges, the acquisition request transmission unit 102f described later makes an acquisition request for the second map information limited to a range (such as the current map display area) narrower than the read range of the first map information. The second map information acquisition unit 202b of the server device 200 to be described later may acquire the second map information limited to a range narrower than the read range of the first map information.

  Here, as an example, the first map information reading unit 102d reads the first map information stored in the first map database 106a corresponding to the reading range into the memory, so that the map is displayed on the display unit 114 at high speed. Control to be displayed. The first map information reading unit 102d may calculate a reading range of the first map information from the reference position information based on a predetermined reading condition. As a reading condition, the first map information in a predetermined range may be read from the center coordinates indicated by the reference position information, or the first map information having a scale one step larger or one step smaller than the scale indicated by the reference position information may be read. However, the present invention is not limited to this, and the first map information reading unit 102d may calculate the reading range based on the user's operation under the control of the input control unit 102c. For example, the first map information reading unit 102d may calculate the reading range based on the gesture operation being input by the input control unit 102c. As an example, when a scroll operation toward a certain direction is started with respect to a mouse or a touch panel type input unit 116, the first map information in the certain direction may be prefetched. Further, when a scale change operation in a certain scale direction (enlargement direction / reduction direction, etc.) is started with respect to the mouse or the touch panel type input unit 116, the first map information of the scale may be prefetched. .

  The acquisition request transmission unit 102f is an acquisition request transmission unit that transmits an acquisition request for second map information according to the reference position information. Here, the acquisition request transmission unit 102f may include information (reference position information or the like) specifying a map range, scale, position (center coordinates, etc.), etc. as the second map information acquisition request. The current position information acquired by the current position information acquisition unit 102a may be included to acquire a map centered on the current position of the user. Further, the acquisition request transmission unit 102f uses the center position of the map display area of the display unit 114 as the reference position information when the operation on the map output to the display unit 114 by the user satisfies a predetermined condition. Send an acquisition request. More specifically, the acquisition request transmission unit 102f uses the input control unit 102c as the reference position information to set the center position of the map display area of the display unit 114 as reference position information when the scroll operation by the user is stationary for a predetermined time or longer. A map information acquisition request may be transmitted. As another example, the acquisition request transmission unit 102f may change the center position of the map display area of the display unit 114 as the reference position information when the scale change operation by the user is stationary for a predetermined time or longer by the input control unit 102c. You may transmit the acquisition request of the 2nd map information of the reduced scale.

  The second map information receiving unit 102 g is a second map information receiving unit that receives the second map information transmitted from the server device 200. The second map information receiving unit 102g may store the received second map information in the storage unit 106.

  Above, description of an example of a structure of the map display system in this embodiment is finished.

[Map display system processing]
Next, an example of processing of the map display system according to the present embodiment configured as described above will be described in detail with reference to FIGS.

[Basic processing]
First, an example of basic processing of the map display system in the present embodiment will be described with reference to FIG. FIG. 2 is a flowchart showing an example of basic processing of the map display system in the present embodiment.

  As shown in FIG. 2, first, the output control unit 102b of the terminal device 100 starts map display control for the display unit 114 (step SA-1). That is, the output control unit 102b controls to output the first map information or the second map information to the display unit 114. When the reference position information is not designated at the initial stage, the output control unit 102b may output map information corresponding to the current position information acquired by the current position information acquisition unit 102a. After the acquisition of the reference position information, the output control unit 102b receives the first map information read by the first map information reading unit 102d or the second map information receiving unit 102g as shown in the subsequent processing. The display unit 114 controls the output of the second map information. Here, the output control unit 102b may display the second map information with priority over the first map information. That is, the output control unit 102b displays the first map information when the first map information is read by the first map information reading unit 102d and the second map information is not received by the second map information receiving unit 102g. On the other hand, when the second map information is received by the second map information receiving unit 102g, the second map information may be displayed and output. In the subsequent processes, the map display control by the output control unit 102b is performed in parallel, but the description of the map display may be omitted.

  Then, the input control unit 102c of the terminal device 100 performs input operation reception control so that the reference position information of the map output to the display unit 114 is input by the user's operation through the input unit 116 (step). SA-2). For example, the input control unit 102c may perform control such that an input operation by a gesture such as scroll control or scale change control is realized by a user via a mouse or a touch panel type input unit 116. As an example, the input control unit 102c defines reference position information that defines the center coordinates, range (display area), and / or scale of the map based on the coordinates, speed, acceleration, and the like of the contact point with respect to the touch panel type input unit 116. May be obtained.

  And the 1st map information reading part 102d of the terminal device 100 calculates the reading range of 1st map information based on the reference | standard position information input by control of the input control part 102c (step SA-3). For example, the first map information reading unit 102d may calculate the reading range of the first map information from the reference position information based on a predetermined reading condition. More specifically, the first map information reading unit 102d may read the first map information in a predetermined range from the center coordinates indicated by the reference position information that satisfies the reading condition. FIG. 3 is a diagram schematically showing the relationship between the first map information reading area and the second map request area. The second map request area (the mesh area shown in the figure), which is a range in which a second map information acquisition request to be described later is made, is a display area defined by the reference position information as an example, and the second map information has not been received. In this case, the first map information is displayed.

  As shown in FIG. 3, the first map information read area (dot area shown) is a wider area than the display target area determined by the reference position information, and the first map information of this area is read in advance. In this way, high-speed map display is realized. Note that the present invention is not limited to this example, and the first map information reading unit 102d may calculate the reading range based on the user's operation under the control of the input control unit 102c. For example, the first map information reading unit 102d may calculate the reading range based on the gesture operation being input by the input control unit 102c. As an example, when the scroll operation toward a certain direction is started with respect to the mouse or the touch panel type input unit 116, the first map information reading unit 102d sets the map range in the corresponding direction as the reading range. Also good. In addition, when the first map information reading unit 102d starts a scale change operation in a certain scale direction (enlargement direction / reduction direction, etc.) on the mouse or the touch panel type input unit 116, the first map information reading unit 102d A scale map may be set as the readout range.

  And the 1st map information reading part 102d of the terminal device 100 reads the 1st map information of the calculated reading range from the 1st map database 106a (step SA-4). As an example, the first map information reading unit 102d reads the first map information stored in the first map database 106a corresponding to the reading range in the memory, so that the map is displayed on the display unit 114 at high speed. To control. Of the read first map information, the first map information corresponding to the reference position information acquired by the control of the input control unit 102c is displayed on the display unit 114.

  And the acquisition request transmission part 102f of the terminal device 100 determines whether the acquisition request of 2nd map information is performed (step SA-5). For example, the acquisition request transmission unit 102f acquires an operation when an operation on the map output to the display unit 114 by the user does not satisfy a predetermined condition (for example, when the reference position information is being input under the control of the input control unit 102c). It may be determined that the request has not yet been made, and when the predetermined condition is satisfied (for example, when the reference position information is determined), it may be determined that the acquisition request for the second map information is to be performed. More specifically, the acquisition request transmission unit 102f determines, by the input control unit 102c, that an acquisition request for the second map information is made when a predetermined condition is satisfied when the scroll operation by the user is stationary for a predetermined time or longer. May be. Similarly, the acquisition request transmitting unit 102f may determine that the input control unit 102c makes a request for acquiring the second map information, assuming that the predetermined condition is satisfied when the scale change operation by the user is stationary for a predetermined time or longer. Good. In addition, when it is determined by the acquisition request transmission unit 102f that the acquisition request for the second map request is not made (step SA-5, No), the terminal device 100 returns the process to step SA-2 and performs the above-described step SA. The process of −2 to SA-5 is repeated.

  On the other hand, if the acquisition request transmission unit 102f of the terminal device 100 determines that the predetermined condition is satisfied and an acquisition request for the second map request is made (step SA-5, Yes), the second map information corresponding to the reference position information is displayed. An acquisition request is transmitted to the server apparatus 200 (step SA-6). Here, the acquisition request transmission unit 102f may include information (reference position information or the like) specifying the map range, scale, position (center coordinates, etc.), etc., as the acquisition request for the second map information. More specifically, the acquisition request transmission unit 102f makes an acquisition request for the second map information using the center position of the map display area of the display unit 114 as reference position information when the scroll operation by the user is stationary for a predetermined time or more. You may send it. Further, the acquisition request transmission unit 102f acquires the second map information of the scale after the change using the center position of the map display area of the display unit 114 as the reference position information when the scale change operation by the user is stationary for a predetermined time or more. A request may be sent.

  Then, the acquisition request receiving unit 202a of the server device 200 receives the acquisition request for the second map information from the terminal device 100 (step SA-7).

  And the 2nd map information acquisition part 202b of the server apparatus 200 acquires the 2nd map information corresponding to the acquisition request received by the acquisition request reception part 202a from the 2nd map database 206a (step SA-8). For example, the second map information acquisition unit 202b extracts the corresponding second map information from the second map database 206a based on the map range, center coordinates, scale, and the like specified in the acquisition request. Get information. For example, the second map information acquisition unit 202b requests acquisition when the second map information is stored in the second map database 206a with a plurality of mesh sections (primary to tertiary mesh sections, 100m mesh sections, etc.). The second map information of the mesh section designated as the scale in FIG.

  And the 2nd map information transmission part 202c of the server apparatus 200 transmits the 2nd map information acquired by the 2nd map information acquisition part 202b to the terminal device 100 (step SA-9).

  And the 2nd map information receiving part 102g of the terminal device 100 receives the 2nd map information transmitted from the server apparatus 200 (step SA-10). The second map information receiving unit 102g may store the received second map information in the storage unit 106.

  Then, the output control unit 102b of the terminal device 100 receives the second map information received by the second map information receiving unit 102g instead of the first map information being displayed read by the first map information reading unit 102d. Is displayed (step SA-11).

  The above is an example of the basic processing of the map display system in the present embodiment. Note that the above-described processing may be repeatedly executed. For example, the terminal device 100 may perform control so that the processes of steps SA-2 to SA-11 described above are repeated each time the reference position information is updated by the control of the input control unit 102c.

[Specific example of processing by scroll operation]
Next, a specific example of processing by scroll operation in the terminal device 100 of the map display system in the present embodiment will be described below with reference to FIGS. 4 and 5. Here, FIG. 4 is a flowchart showing an example of processing by scroll operation in the terminal device 100 of the present embodiment. In the subsequent processing, the map display control by the output control unit 102b is also performed in parallel, and when the second map information is received, the map is displayed in place of the first map information. The description of may be omitted.

  As shown in FIG. 4, first, the input control unit 102c receives an input operation by scroll control by a user via a mouse or a touch panel type input unit 116 (step SB-1).

  Then, the input control unit 102c acquires a scroll amount (speed, direction, etc.) for the mouse or touch panel type input unit 116 (step SB-2).

  Then, the first map information reading unit 102d calculates the expected map display destination map range as a reading range based on the scroll amount (speed, direction, etc.) acquired by the input control unit 102c (step SB-). 3). FIG. 5 is a diagram schematically showing the relationship between the first map information reading area and the second map request area.

  As shown in FIG. 5, the first map information reading area is an area in the scroll direction with respect to the display target area (that is, the second map request area) determined by the reference position information. A high-speed map display is achieved by reading map information in advance. Note that the reading area in the scroll direction may be enlarged as the scroll speed increases.

  Then, the first map information reading unit 102d reads the first map information, which is local map information, from the first map database 106a within the calculated reading range (step SB-4).

  Then, the output control unit 102b causes the display unit 114 to display local map information in a range corresponding to the scroll amount acquired by the control of the input control unit 102c (step SB-5). Since the local map information of the scroll destination has been read in advance, it is displayed on the display unit 114 without delay.

  Then, the acquisition request transmission unit 102f determines whether or not the scroll operation by the user has been stopped for a predetermined time or longer under the control of the input control unit 102c (step SB-6). If the scrolling operation is less than a certain time after the stationary operation (step SB-6, No), the terminal device 100 returns the process to step SB-3 and repeats the processes of steps SB-3 to SB-6 described above.

  On the other hand, if the acquisition request transmission unit 102f determines that a certain time has elapsed since the scroll operation is stopped (step SB-6, Yes), the acquisition request transmission unit 102f acquires the reference position information updated by the input control unit 102c (step SB- 7) The second map information acquisition request corresponding to the reference position information is transmitted to the server device 200 (step SB-8). For example, the acquisition request transmission unit 102f may transmit the acquisition request for the second map information using the center position of the map display area of the display unit 114 at the position where the scroll operation is stationary as the reference position information.

  Then, when the second map information receiving unit 102g receives the second map information transmitted based on the acquisition request from the server device 200 (step SB-9), the output control unit 102b, the first map information reading unit 102d. The second map information received by the second map information receiving unit 102g is displayed instead of the first map information being displayed read out by (Step SB-10).

  The above is the specific example of the process by the scroll operation in the terminal device 100 of the present embodiment.

[Specific example of processing by scale change operation]
Subsequently, a specific example of processing by a scale changing operation in the terminal device 100 of the map display system in the present embodiment will be described below with reference to FIGS. 6 and 7. Here, FIG. 6 is a flowchart illustrating an example of processing by a scale changing operation in the terminal device 100 of the present embodiment. In the subsequent processing, the map display control by the output control unit 102b is also performed in parallel, and when the second map information is received, the map is displayed in place of the first map information. The description of may be omitted.

  As shown in FIG. 6, first, the input control unit 102c accepts an input operation related to enlargement / reduction processing by a user via a mouse or a touch panel type input unit 116 (step SC-1).

  Then, the input control unit 102c acquires the enlargement / reduction processing amount (speed, etc.) for the mouse or touch panel type input unit 116 (step SC-2).

  Then, the first map information reading unit 102d uses, as a reading range, an expected enlarged or reduced map range (display layer or the like) based on the enlargement / reduction processing amount (speed or the like) acquired by the input control unit 102c. Calculate (step SC-3). Here, FIG. 7 is a diagram schematically showing the relationship between the first map information reading area and the second map request area.

  As shown in FIG. 7, the first map information read-out area is after the expected scale change (after enlargement / reduction) with respect to the display target area (that is, the second map request area) determined by the reference position information. The first map information in this area is read in advance, thereby realizing high-speed map display. It should be noted that the larger the enlargement / reduction processing speed, the larger the reading area that has been enlarged or reduced to a narrower area may be set.

  Then, the first map information reading unit 102d reads the first map information, which is local map information, from the first map database 106a within the calculated reading range (step SC-4).

  Then, the output control unit 102b causes the display unit 114 to display local map information in a range corresponding to the enlargement / reduction processing amount acquired by the control of the input control unit 102c (step SC-5). Note that the expected local map information after the scale change has been read in advance, so that it is displayed on the display unit 114 without delay.

  Then, the acquisition request transmission unit 102f determines whether or not the scale change operation by the user has been stationary for a predetermined time or longer under the control of the input control unit 102c (step SC-6). When the scale change operation has been stationary for less than a certain time (step SC-6, No), the terminal device 100 returns the process to step SC-4 and repeats the processes of steps SC-4 to SC-6 described above. .

  On the other hand, if the acquisition request transmission unit 102f determines that a predetermined time has elapsed after the scale change operation is stopped (step SC-6, Yes), the acquisition request transmission unit 102f acquires the reference position information updated by the input control unit 102c (step SC). -7) The second map information acquisition request corresponding to the reference position information is transmitted to the server device 200 (step SC-8). For example, the acquisition request transmission unit 102f uses the center position of the map display area of the display unit 114 at the position where the scale change operation is stationary as the reference position information, and the scaled second map information (display layer after the scale process, etc.) ) Acquisition request may be sent.

  And if the 2nd map information receiving part 102g receives the 2nd map information transmitted based on the acquisition request from the server apparatus 200 (step SC-9), the output control part 102b will be the 1st map information reading part 102d. The second map information received by the second map information receiving unit 102g is displayed instead of the first map information being displayed read out by (Step SC-10).

  The above is the specific example of the process by the scale changing operation in the terminal device 100 of the present embodiment.

  Above, description of the process of the map display system in this embodiment is finished.

[Other embodiments]
Although the embodiments of the present invention have been described so far, the present invention can be implemented in various different embodiments within the scope of the technical idea described in the claims other than the above-described embodiments. It may be done.

  In addition, among the processes described in the embodiment, all or part of the processes described as being automatically performed can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method.

  In addition, processing procedures, control procedures, specific names, information including parameters such as registration data and facility search conditions, screen examples, and database configurations shown in the above documents and drawings may be specially noted. It can be arbitrarily changed except for.

  Further, regarding the terminal device 100 and the server device 200, each illustrated component is functionally conceptual and does not necessarily need to be physically configured as illustrated.

  For example, the processing functions provided in each device of the terminal device 100 and the server device 200, in particular, the processing functions performed by the control unit 102 and the control unit 202 are all or any part of the processing functions. (Central Processing Unit) and a program interpreted and executed by the CPU, or can be realized as hardware by wired logic. Note that the program is recorded on a non-transitory computer-readable recording medium including a programmed instruction for causing a computer to execute the method according to the present invention, which will be described later. Alternatively, it is mechanically read by the server device 200. That is, a storage unit 206 such as a ROM or a HDD (Hard Disk Drive) stores a computer program for giving instructions to the CPU in cooperation with the OS and performing various processes. This computer program is executed by being loaded into the RAM, and constitutes a control unit in cooperation with the CPU.

  The computer program may be stored in an application program server connected to the terminal device 100 and the server device 200 via an arbitrary network 300, and all or part of the computer program is stored as necessary. It can also be downloaded.

  The program according to the present invention can also be stored in a computer-readable recording medium. Here, the “recording medium” is an arbitrary “portable physical medium” such as a flexible disk, a magneto-optical disk, a ROM, an EPROM, an EEPROM, a CD-ROM, an MO, a DVD, a Blu-ray Disc, or the like. It includes a “communication medium” that holds a program in a short period of time, such as a communication line or a carrier wave when a program is transmitted via a network represented by a LAN, WAN, or the Internet.

  The “program” is a data processing method described in an arbitrary language or description method, and may be in any format such as source code or binary code. Note that the “program” is not necessarily limited to a single configuration, and functions are achieved in cooperation with a separate configuration such as a plurality of modules and libraries or a separate program represented by the OS. Including things. Note that a well-known configuration and procedure can be used for a specific configuration for reading a recording medium, a reading procedure, an installation procedure after reading, and the like in each device described in the embodiment.

  Various databases and the like (first map database 106a, second map database 206a, etc.) stored in the storage unit 106 and the storage unit 206 are a memory device such as a RAM and a ROM, a fixed disk device such as a hard disk, a flexible disk, and an optical disk. And stores various programs, tables, databases, web page files, and the like used for various processes and website provision.

  The server device 200 is realized by connecting an information processing device such as a known personal computer or workstation and mounting software (including a program, data, etc.) for realizing the method of the present invention in the information processing device. May be.

  Furthermore, the specific form of distribution / integration of the devices is not limited to that shown in the figure, and all or a part of them may be functional or physical in arbitrary units according to various additions or according to functional loads. Can be distributed and integrated.

  As described above in detail, according to the present invention, when map information can be acquired from both the terminal and the server, suitable map display control can be performed, a map display system, a terminal device, a server device, a map Since a display method and a program can be provided, it is extremely useful in various fields such as an information device that supports navigation and an information processing field.

100 terminal device 102 control unit
102a Current position information acquisition unit
102b Output control unit
102c Input control unit
102d First map information reading unit
102f Acquisition request transmission unit
102g Second map information receiving unit 104 Communication control interface unit 106 Storage unit
106a First map database 108 Input / output control interface unit 112 Position acquisition unit 114 Display unit 116 Input unit 200 Server device 202 Control unit
202a Acquisition request receiver
202b Second map information acquisition unit
202c Second map information transmission unit 204 Communication control interface unit 206 Storage unit
206a Second map database 300 Network 500 Position transmitter 600 External device

Claims (13)

  A map display system in which a server device including at least a storage unit and a control unit, and a terminal device including at least an input unit, a display unit, a storage unit, and a control unit are communicably connected. The storage unit includes a first map information storage unit that stores first map information that is first map information, and the storage unit of the server device stores second map information that is second map information. Second map information storage means, and the control unit of the terminal device includes an output control means for controlling the output of the first map information or the second map information to the display unit, and the input unit. Input control means for controlling the reference position information of the map output to the display unit to be input by the user's operation, and calculating the reading range of the first map information based on the reference position information, Above reading range From the first map information reading means for reading one map information from the first map information storage means, an acquisition request transmitting means for transmitting an acquisition request for the second map information in accordance with the reference position information, and the server device Second map information receiving means for receiving the second map information to be transmitted, wherein the control unit of the server device receives the acquisition request transmitted from the terminal device. And based on the acquisition request, second map information acquisition means for acquiring second map information from the second map information storage means, and the second map information acquired by the second map information acquisition means, And a second map information transmitting means for transmitting to the terminal device, wherein the reading range of the first map information is larger than the range of the received second map information.   The map display system according to claim 1, wherein the output control means preferentially displays the second map information with respect to the first map information.   2. The map display system according to claim 1, wherein the acquisition request transmitting unit is configured to control the input control unit when the user's operation on the map output to the display unit satisfies a predetermined condition. The map display system, wherein the acquisition request for the second map information is transmitted using the center position of the map display area of the display unit as the reference position information.   4. The map display system according to claim 3, wherein the acquisition request transmission means determines the center position of the map display area of the display unit when the input control means stops the scroll operation by the user for a predetermined time or more. The map display system, wherein the acquisition request for the second map information is transmitted as the reference position information.   4. The map display system according to claim 3, wherein the acquisition request transmission unit is configured such that, when the scale change operation by the user is stationary for a predetermined time or more by the input control unit, the center position of the map display region of the display unit. The map display system, wherein the acquisition request for the second map information at the scale after the change is transmitted as the reference position information.   6. The map display system according to claim 1, wherein the first map information reading unit calculates the reading range based on an operation of the user under the control of the input control unit. A map display system characterized by   A terminal device including at least an input unit, a display unit, a storage unit, and a control unit, which is communicably connected to a server device including at least a storage unit, wherein the storage unit of the server device is a first map. First map information storage means for storing first map information as information, and the storage unit of the terminal device includes second map information storage means for storing second map information as second map information, The control unit outputs the first map information or the second map information to the display unit by output control means for controlling the output to the display unit and a user operation via the input unit. Input control means for controlling the reference position information of the map to be input, and a reading range of the first map information is calculated based on the reference position information, and the first map information of the reading range is calculated as the first map information. Read from one map information storage means The first map information reading means, the acquisition request transmitting means for transmitting the acquisition request for the second map information according to the reference position information, and the first request based on the acquisition request transmitted from the server device. Second map information receiving means for receiving second map information acquired from the two map information storage means, wherein the reading range of the first map information is larger than the range of the received second map information A terminal device characterized by that.   A server device including at least a storage unit and a control unit, which is communicably connected to a terminal device including at least an input unit, a display unit, and a storage unit, wherein the storage unit of the terminal device is a first map. First map information storage means for storing first map information as information, and the storage unit of the server device stores second map information storage means for storing second map information as second map information, And the control unit transmits the second map according to the reference position information of the map that is transmitted from the terminal device and input to the display unit by the user's operation via the input unit. Acquisition request receiving means for receiving an information acquisition request, and second map information acquisition for acquiring the second map information from the second map information storage means based on the acquisition request received by the acquisition request receiving means Means and said second The second map information is transmitted so that the second map information acquired by the figure information acquisition means or the first map information of the reading range based on the reference position information is displayed on the display unit. And a second map information transmitting means, wherein the read range of the first map information is larger than the range of the received second map information.   A map display method executed in a map display system in which a server device including at least a storage unit and a control unit, and a terminal device including at least an input unit, a display unit, a storage unit, and a control unit are communicably connected. The storage unit of the terminal device includes first map information storage means for storing first map information that is first map information, and the storage unit of the server device includes second map information. A second map information storage means for storing the second map information, and the output of the first map information or the second map information executed by the control unit of the terminal device is controlled on the display unit. An input control for controlling the reference position information of the map output to the display unit to be input by an output control step and a user operation via the input unit, which is executed by the control unit of the terminal device. And a step of calculating a reading range of the first map information based on the reference position information, which is executed by the control unit of the terminal device, and storing the first map information of the reading range in the first map information storage A first map information reading step for reading from the means, an acquisition request transmitting step for transmitting an acquisition request for the second map information according to the reference position information, which is executed by the control unit of the terminal device, and the server Based on the acquisition request receiving step for receiving the acquisition request transmitted from the terminal device, executed by the control unit of the device, and the acquisition request executed by the control unit of the server device, A second map information acquisition step of acquiring second map information from the second map information storage means; and the second map information executed by the control unit of the server device. A second map information transmission step for transmitting the second map information acquired in the obtaining step to the terminal device; and the second map information transmitted from the server device, which is executed by the control unit of the terminal device. And a second map information receiving step for receiving second map information, wherein the reading range of the first map information is larger than the range of the received second map information.   A map display method executed in a terminal device including at least an input unit, a display unit, a storage unit, and a control unit, which is communicably connected to a server device including at least a storage unit, the storage of the terminal device The unit includes first map information storage means for storing first map information that is first map information, and the storage unit of the server device stores second map information that is second map information. An output control step for controlling the output of the first map information or the second map information to the display unit, which is executed in the control unit, and is used via the input unit. An input control step for controlling the reference position information of the map output to the display unit to be input by a user's operation, and a reading range of the first map information is calculated based on the reference position information. Model A first map information reading step for reading the first map information from the first map information storage means, an acquisition request transmitting step for transmitting an acquisition request for the second map information according to the reference position information, A second map information receiving step for receiving second map information acquired from the second map information storage means based on the acquisition request transmitted from a server device, and reading the first map information The map display method characterized in that the range is larger than the range of the received second map information.   A map display method executed in a server device having at least a storage unit and a control unit, which is communicably connected to a terminal device having at least an input unit, a display unit, and a storage unit, the storage of the terminal device The unit includes first map information storage means for storing first map information that is first map information, and the storage unit of the server device stores second map information that is second map information. Second map information storage means, executed by the control unit, transmitted from the terminal device, input by a user operation through the input unit, and output of the map to the display unit Based on the acquisition request received step of receiving the acquisition request of the second map information according to the reference position information, and the acquisition request received by the acquisition request receiving means, the second map information storage means from the second map information storage means The second map information acquisition step for acquiring diagram information, the second map information acquired in the second map information acquisition step, or the first map information of the reading range based on the reference position information is A second map information transmission step for transmitting the second map information as displayed on the display unit, wherein the read range of the first map information is more than the range of the received second map information A map display method characterized by being large.   A program for causing a terminal device including at least an input unit, a display unit, a storage unit, and a control unit to be communicably connected to a server device including at least a storage unit, the storage unit of the terminal device Comprises first map information storage means for storing first map information that is first map information, and the storage unit of the server device stores second map information that is second map information. Two-map information storage means, and in the control unit, an output control step for controlling the output of the first map information or the second map information to the display unit, and a user operation via the input unit. An input control step for controlling the reference position information of the map output to the display unit to be input; and a reading range of the first map information is calculated based on the reference position information; one A first map information reading step for reading out map information from the first map information storage means, an acquisition request transmitting step for transmitting an acquisition request for the second map information in accordance with the reference position information, and a transmission from the server device A second map information receiving step for receiving the second map information received from the second map information storage means based on the acquisition request, wherein the first map information The above-mentioned reading range is larger than the range of the received second map information.   A program for causing a server device including at least a storage unit and a control unit to be communicably connected to a terminal device including at least an input unit, a display unit, and a storage unit, the storage unit of the terminal device Comprises first map information storage means for storing first map information that is first map information, and the storage unit of the server device stores second map information that is second map information. Two-map information storage means, and the reference position information of the map output to the display unit, which is transmitted from the terminal device by the user's operation via the input unit, is output in the control unit. Based on the acquisition request received in the acquisition request reception step and the acquisition request reception step of receiving the acquisition request of the second map information in response, the second map information is obtained from the second map information storage means. The second map information acquisition step to be obtained, the second map information acquired in the second map information acquisition step, or the first map information of the reading range based on the reference position information is displayed on the display unit. And a second map information transmitting step for transmitting the second map information, wherein the read range of the first map information is the second map information to be received. A program characterized by being larger than the range.

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