JP7189797B2 - Map display device, method and program - Google Patents

Description

The present invention relates to technology for displaying maps.

Patent Document 1 discloses a technique for changing the display color of a navigation map according to the season, the weather, and the time of day to reduce the sense of incongruity with the actual scenery outside the vehicle.

JP-A-10-221093

According to Patent Document 1, the actual weather outside the vehicle can be grasped by changing the display color of the navigation map according to the weather. However, since Patent Document 1 only changes the display color of the map according to the weather at the current position, the weather in each area on the map cannot be grasped. Therefore, in order to grasp weather information such as weather and temperature in each region, for example, another application such as a weather map must be started and browsed. As a result, for example, when grasping the weather information of the destination on the navigation map, or when grasping the weather information of each area on the route to the destination, it is necessary to start another application.

The present invention solves at least part of the above-described problems, and can be implemented as the following modes. A map display device for displaying a navigation map on a display unit, comprising: display range specifying means for specifying a display range of the map to be displayed on the display unit; and specifying each area to be displayed on the map within the display range. area specifying means; acquisition means for acquiring weather information about each area; determination means for determining a drawing design corresponding to the weather information of each area; and each area on the map with the determined drawing design. map display control means for displaying a drawn map image on the display unit, wherein the acquisition means acquires the weather information in units of meshes, and based on the weather information of each mesh included in the area, 2. A map display device, wherein representative weather information of each region is calculated, and the determination means determines a drawing design corresponding to the representative weather information of each region. In addition, the present invention can also be implemented as the following modes.

A map display device according to an aspect of the present invention includes:
A map display device for displaying a navigation map on a display unit,
display range specifying means for specifying a display range of the map to be displayed on the display unit;
area specifying means for specifying each area to be displayed on the map in the display range;
Acquisition means for acquiring weather information about each region;
determining means for determining a drawing design corresponding to the weather information of each region;
map display control means for displaying, on the display unit, a map image in which the regions on the map are drawn with the determined drawing design;
characterized by having

It is a figure which shows the structural example of a map display system. It is a figure which shows the temperature information which is an example of area information. It is a figure which shows the processing operation example of 1st Embodiment. It is a figure which shows the processing operation example of 2nd Embodiment.

Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that, in each figure, the same reference numerals have the same or similar configurations.

(First embodiment)
<Configuration example of map display system>
First, a configuration example of a map display system according to this embodiment will be described with reference to FIG. FIG. 1 is a diagram showing a configuration example of a map display system according to this embodiment.

As shown in FIG. 1, the map display system according to this embodiment is configured by connecting a user terminal 1, a map display device 2, and an information providing device 3 via a network NW. Any form of communication, whether wired or wireless, can be applied to the network NW.

The information providing device 3 is a device that provides the map display device 2 with area information such as traffic information, disaster information, weather information, and river information. The information providing device 3 may be a device such as a server. The information providing device 3 includes a control section 31 and a storage section 32 .

The control section 31 controls each section of the information providing device 3 . The storage unit 32 stores various information. The information providing device 3 of this embodiment classifies various area information such as traffic information, disaster information, weather information, and river information about a specific area on the map by area and stores it in the storage unit 32. Various area information stored in 32 is provided to the map display device 2 for each area. Traffic information includes information such as congestion information and traffic regulation information. Disaster information includes information on tsunamis, earthquakes, typhoons, landslides, tornadoes, and the like. Weather information includes, for example, rain clouds, weather (clear, cloudy, rainy, snowy, etc.), amount of precipitation, probability of precipitation, maximum temperature, current temperature, minimum temperature, UV intensity, amount of pollen scattered, amount of snow, sunshine hours, total Information such as the amount of solar radiation and wind speed can be cited. River information includes information such as flood occurrence information and water level information. The area information stores not only current information but also past and future information in chronological order in the storage unit 32 .

FIG. 2 is a diagram showing the current temperature among the weather information stored in the storage unit 32. As shown in FIG. As shown in FIG. 2, the information providing device 3 divides the map information into 1-km square mesh units, associates each mesh with the current temperature of the mesh, and stores it in the storage unit 32 . For example, in the example shown in FIG. 2, mesh A indicates that the current temperature is 20 degrees Celsius. The information providing device 3 can provide various area information to the map display device 2 in units of meshes by classifying various kinds of area information in units of meshes and storing and managing them in the storage unit 32 . The mesh unit is not limited to 1 km, and can be divided in arbitrary units such as 250 m. Also, the area information can be divided into a plurality of units such as 250m mesh and 1km mesh for management. Area information can also be managed in units of various areas, such as administrative divisions (prefectures, municipalities, large districts, town names, small districts, town blocks), polygon units, etc., instead of dividing them into mesh units. be.

A user terminal 1 is a terminal used by a user. The user terminal 1 may be a device such as a smart phone or a PC. The user terminal 1 includes a control section 11, a storage section 12, an input/output section 13, and a position information acquisition section .

The control unit 11 controls each unit of the user terminal 1 . The control unit 11 provides the user of the user terminal 1 with a navigation map. Navigation maps include maps used when setting a destination, maps used when displaying route search results from the departure point to the destination, and maps used when guiding the route to the destination. be done. The control unit 11 designates parameters such as the latitude and longitude of the center point of the map to be displayed, the display scale, and the type of area information to be displayed on the map, and transmits a navigation map display request to the map display device 2 to display the map. Information on the map to be displayed is acquired from the device 2 , and the navigation map is displayed on the user terminal 1 via the input/output unit 13 . For the latitude and longitude of the center point of the map to be displayed, the position information acquired by the position information acquisition unit 14 may be used. As a trigger for the control unit 11 to send a navigation map display request to the map display device 2, for example, when the user terminal 1 receives an operation to enlarge or reduce the map, an operation to change the display range of the map is sent to the user terminal. When the user terminal 1 receives the display switching operation of the area information type When the user terminal 1 receives the route search request operation When the user terminal 1 receives the route guidance request operation etc.

The storage unit 12 stores various information used by the user terminal 1 . The input/output unit 13 is various interfaces used for inputting/outputting information between the user terminal 1 and the user. Examples of the input/output unit 13 include a touch panel, operation buttons, and a microphone as input units, and a touch panel, liquid crystal panel, and speaker as output units. The input/output unit 13 functions as a display unit that displays a map. The location information acquisition unit 14 acquires the current location of the user terminal 1 . The location information acquisition unit 14 receives, for example, radio waves from GPS (Global Positioning System) satellites and information from base stations, detects the current location of the user terminal 1, and acquires the detected current location data (latitude, longitude, height data). Height data may be acquired using an air pressure sensor or the like. The position information acquisition unit 14 may perform self-position estimation using pedestrian autonomous navigation (PDR: Pedestrian Dead Reckoning) or the like.

The map display device 2 is a device that provides the user terminal 1 with map information. The map display device 2 may be a device such as a server. The map display device 2 includes a control section 21 and a storage section 22 .

In addition to controlling each part of the map display device 2, the control unit 21 functions as an information reception unit 211, a display range identification unit 212, an area identification unit 213, an area information acquisition unit 214, a map design determination unit 215, and a map display control unit 216. Function.

The information reception unit 211 receives a navigation map display request or the like from the user terminal 1 . The navigation map display request includes information such as the latitude and longitude of the center point of the map to be displayed, the display scale, and the type of area information to be displayed on the map.

The display range specifying unit 212 specifies the type of area information included in the navigation map display request received by the information receiving unit 211 . Further, the display range specifying unit 212 provides the navigation map to the user terminal 1 based on the latitude and longitude of the center point of the map to be displayed, the display scale, etc. included in the navigation map display request received by the information receiving unit 211. Specify the display range of . It is preferable that the specified display range of the navigation map be a region (display range+buffer) larger than the display range of the user terminal 1 by a certain range. As a result, even if the navigation map displayed on the user terminal 1 is moved, the navigation map can be displayed without reacquisition.

The region specifying unit 213 specifies each region to be displayed on the map within the display range specified by the display range specifying unit 212 . For example, if the display scale of the map in the display range specified by the display range specifying unit 212 is 1/1500 to 1/21000, each area of the municipality name included in the display range is specified. Also, if the display scale of the map of the display range specified by the display range specifying unit 212 is 1/75000 to the whole country (1/7.8 million), each region of the prefecture name included in the display range is specified. Thus, each area to be displayed on the map can be specified according to the map display scale of the display range specified by the display range specifying unit 212 .

The area information acquisition unit 214 acquires various area information such as traffic information, disaster information, weather information, and river information from the information providing device 3 on an area-by-area basis. The area information acquisition unit 214 stores the acquired various area information in the area information storage unit 223, which will be described later. The area information acquisition unit 214 may periodically acquire area information in units of meshes. For example, when acquiring the estimated weather distribution data of the Meteorological Agency from the information providing device 3, the estimated weather distribution data is acquired once an hour in the primary, secondary, and tertiary meshes. The primary mesh is about 80 km unit, the secondary mesh is about 10 km unit, and the tertiary mesh is about 1 km unit. When the area information is acquired in units of meshes, the area information acquisition unit 214 specifies the meshes included in the administrative division polygons representing each region, and uses the average value of the area information of the specified meshes as the representative area information of each region. calculate. For example, each mesh is compared with the administrative division polygon, inside/outside determination is performed, and each mesh included in the administrative division polygon is specified. Then, the average value of the area information of each identified mesh is calculated, and the calculated average value is used as the representative area information. When calculating the representative area information with high accuracy, the area information of the tertiary mesh is used. When the representative area information is simply calculated, the area information of the primary mesh and the secondary mesh is used.

The map design determination unit 215 determines a map design corresponding to representative area information of each region to be displayed on the map. For example, map designs at the level of prefectures and at the level of municipalities are stored in the map design storage unit 224 according to the type of area information and the rank of area information. The map design determination unit 215 determines whether the area identified by the area identification unit 213 is at the prefecture level or the municipality level. Next, when the area specified by the area specifying unit 213 is the prefecture level, the map design storage unit 224 is referred to, and the area information of the type specified by the display range specifying unit 212 is selected from the map designs of the prefecture level. and acquiring a map design corresponding to the rank of the representative area information of the region specified by the region specifying unit 213, and based on the acquired map design, to the representative area information of the region specified by the region specifying unit 213 Determine the corresponding map design. If the area specified by the area specifying unit 213 is at the municipal level, the map design storage unit 224 is referred to, and the representative area of the area specified by the area specifying unit 213 is selected from among the map designs at the municipal level. Decide on a map design that corresponds to the information. The map design determination unit 215 may use a plurality of map designs stored in the map design storage unit 224 to determine a map design corresponding to the representative area information of each region. For example, if the area information is temperature information, the map design storage unit 224 stores a map design for each base point temperature (10° C., 20° C., 30° C., etc.). Specifically, the map design with a base temperature of 10°C is R = 0, G = 255, B = 191, and the map design with a base temperature of 20°C is R = 0, G = 255, B = 0, and 30°C. The map design is R=191, G=255, B=0. When the representative temperature of the region specified by the region specifying unit 213 is 15°C, the map design determination unit 215 linearly interpolates the map designs with the base temperatures of 10°C and 20°C to obtain R=0, G=255, B=95. use the map design of In addition, when the representative temperature of the area specified by the area specifying unit 213 is 25°C, the map design with the base temperature of 20°C and 30°C is linearly interpolated, and the map design of R=95, G=255, B=0 is used. do.

The map display control unit 216 transmits to the user terminal 1 the information of the map image that draws each area on the navigation map with the map design determined by the map design determination unit 215, and displays it on the user terminal 1. The map image is drawn, for example, in vector format. The drawing format of the map image is not particularly limited, and may be, for example, a raster format.

The storage unit 22 stores various information used by the map display device 2 . The storage unit 22 includes a map information storage unit 221 , a route information storage unit 222 and an area information storage unit 223 .

The map information storage unit 221 stores map data for display in association with the display scale. For example, map data of 1/1500, 1/3000, 1/8000, 1/21000, 1/75000, 1/150,000, 1/300,000, 1/900,000, wide area (1/1.5 million), nationwide ( 1/7,800,000) is stored in association with the display scale. The map data includes information such as topography, buildings, roads, facilities, notes, etc. necessary for constructing the background map, and the information differs for each display scale. For example, if the display scale is small, the prefecture name is included in the map data. Include in the data, and if the display scale is large, in addition to the above, include the town name and small letters in the map data.

The route information storage unit 222 stores road network data. The road network data includes nodes and links connecting the nodes. Each link is associated with the distance of the road represented by the link and the average travel time (travel time) as the link cost. Road network data is stored according to means of transportation (walking, car, bicycle, etc.).

The area information storage unit 223 stores various area information acquired by the area information acquisition unit 214 in area units.

The map design storage unit 224 stores a plurality of map designs by area information type and area information rank.

<Processing operation example of the map display device 2>
Next, an example of processing operations performed by the map display device 2 will be described with reference to FIG. FIG. 3 is a diagram showing an example of map display processing operation.

When the map display device 2 receives a navigation map display request from the user terminal 1 (step S1/Yes), the map display device 2 identifies the type of area information included in the display request. Also, the display range of the navigation map provided to the user terminal 1 is specified based on the latitude and longitude of the central point of the map to be displayed and the display scale included in the display request (step S2).

Next, the map display device 2 specifies each area to be displayed within the display range of the navigation map (step S3).

Next, the map display device 2 acquires the area information of the display target area in mesh units (step S4).

Next, the map display device 2 calculates the representative area information for each area identified in step S3 based on the area information for each mesh acquired in step S4 (step S5).

Next, the map display device 2 determines a map design corresponding to the representative area information calculated in step S5 for each area (step S6).

Next, the map display device 2 transmits to the user terminal 1 the information of the map image in which each area is drawn with the map design decided in step S6, and displays it on the user terminal 1 (step S7).

<Operations and effects of the map display system of the present embodiment>
The map display device 2 of the present embodiment can change the map design of each area on the navigation map displayed on the user terminal 1 according to the area information of each area by the above process. As a result, the user of the user terminal 1 can grasp the area information of each area simply by looking at the map design of each area displayed on the navigation map. As a result, for example, without starting another application such as a weather map, the destination can be set while grasping the weather information of each region on the navigation map. In addition, the weather information of each region on the route to the destination can be grasped on the navigation map.

(Second embodiment)
Next, a second embodiment will be described.

In the first embodiment, as shown in FIG. 3, when a navigation map display request is received (step S1/Yes), area information for each region to be displayed on the map is obtained (step S4). .

In the second embodiment, as shown in FIG. 4, various types of area information are obtained in advance (step A1). When the map display device 2 acquires area information in units of meshes, the map display device 2 calculates representative area information in units of regions based on the area information in units of meshes (step A2). Next, a map design corresponding to the calculated representative area information is determined for each area (step A3). The map design determined for each area is stored in the map design storage unit 224 in association with the type of area information and the area.

Next, when the map display device 2 receives a navigation map display request from the user terminal 1 (step A4/Yes), it identifies the type of area information included in the display request. Also, the display range of the navigation map to be provided to the user terminal 1 is specified based on the latitude and longitude of the central point of the map to be displayed and the display scale included in the display request (step A5).

Next, the map display device 2 specifies each area to be displayed within the display range of the navigation map (step A6).

Next, the map display device 2 determines a map design for each area identified in step A6 based on the type of area information identified in step A5 (step A7). Specifically, the map display device 2 refers to the map design storage unit 224 and stores the map design information associated with the type of area information specified in step A5 and the area specified in step A6. obtained from the unit 224 . As a result, the map display device 2 can determine the map design of each area on the navigation map displayed on the user terminal 1 from among the plurality of map designs stored in the map design storage unit 224.例文帳に追加

Next, the map display device 2 transmits to the user terminal 1 the information of the map image in which each area is drawn with the map design decided in step A7, and displays it on the user terminal 1 (step A8).

<Operations and effects of the map display system of the present embodiment>
The map display device 2 of this embodiment acquires various types of area information in advance from the information providing device 3, and associates a map design corresponding to the acquired area information with the type and area of the area information and stores the map design. H.224. Therefore, when the map display device 2 receives a map display request, the user terminal 1 can select a map design from among a plurality of map designs stored in the map design storage unit 224 without acquiring area information. You can decide the map design of each area on the displayed navigation map.

<Modification>
The above-described embodiments are preferred embodiments of the present invention, and the scope of the present invention is not limited only to the above-described embodiments, and various modifications are made within the scope of the present invention. can be implemented.

(Modification 1)
In the processing operation example of the above-described embodiment, the map display device 2 acquires area information in units of meshes, calculates representative area information in units of regions based on the area information in units of meshes, and uses the representative area information as We have decided on the appropriate map design. However, when the area information is acquired in units of regions, the map design corresponding to the area information acquired in units of regions may be determined in units of regions without calculating the representative area information in units of regions. For example, if the area information is acquired in units of administrative division polygons, a map design corresponding to the area information is determined in units of administrative division polygons. As a result, the map design of each area can be determined using the area information as it is without calculating the representative area information.

(Modification 2)
In the above-described embodiment, when the map display device 2 receives a navigation map display request from the user terminal 1, the map display device 2 sets the map design of each region on the navigation map to be displayed on the user terminal 1 to the area information of each region. I am trying to change it accordingly. However, when the map display device 2 newly acquires area information for each region on the navigation map while the navigation map is being displayed on the user terminal 1, the map display device 2 may be used according to the newly acquired area information. The map design of each region on the navigation map displayed on the personal terminal 1 may be changed. As a result, the map design of each area on the navigation map displayed on the user terminal 1 can be changed according to changes in the area information periodically acquired by the map display device 2 .

(Modification 3)
In the above-described embodiment, the map design may be changed using multiple types of area information. For example, the map design may be changed using area information such as temperature and weather (clear, cloudy, rainy, snowy, etc.). This makes it possible to grasp the temperature and weather of each region at the same time simply by looking at the map design of each region on the navigation map.

(Modification 4)
The drawing design of each area, which is made different according to the area information of each area, is not limited to the map design of each area described above, and may be, for example, the name of each area or the facility information displayed in each area. The map display device 2 changes the drawing design of each area on the navigation map displayed on the user terminal 1 according to the area information of each area, so that the user of the user terminal 1 can see the map on the navigation map. You can grasp the area information of each area by looking at the drawing design of each area displayed. If the area name and the facility information to be displayed in each area are changed according to the area information of each area, it is preferable to display them on the map in a more emphasized manner than other notes displayed on the map. For example, the display size of each area name and facility information is made larger than other notes. Alternatively, each area name and facility information are preferentially displayed on the map over other notes. Specifically, each region name or facility information to be displayed is extracted from the map, and a separate layer configured only with each region name or facility information to be displayed is created. Each area name and facility information that constitute another layer are made different according to the area information of each area. Also, a background map (base map) is created by deleting the extracted area names or facility information from the map. The map display device 2 creates a map image in which another layer is superimposed on the background map. As a result, each area name and facility information can be displayed on the map with priority over other annotations. When the facility information of each area on the navigation map displayed on the user terminal 1 is changed according to the area information of each area, for example, it is possible to do as follows. If the display target area of the navigation map is Ueno, and the area information for that area is rainy and the temperature is 10°C, indoor facilities such as art museums that can be visited even in the rain, and facilities that are popular for hot food are located in the Ueno area. display on the map of If the weather in the area information is fine and the temperature is 30° C., facilities such as Ueno Park and Ueno Zoo, which are most suitable for fine weather, and facilities where cold food is popular are displayed on the map of the Ueno area. The facility information to be displayed on the map of each area according to the area information of each area can be specified, for example, by the following method. First, under the environmental conditions of the area information where the weather is rainy and the temperature is 10°C, facilities with a high number of users in each area are analyzed and specified, and the facilities in each specified area are linked to the above area information and stored. Store in 22. Thereby, the map display device 2 can refer to the storage unit 22 and display the facilities associated with the area information of each area on the map of each area. As described above, the map display device 2 of the present embodiment, for example, determines facility information to be displayed in the area of the weather information according to the weather information of the display target area, and displays the determined facility information on the navigation map. The drawn map image is displayed on the user terminal 1.例文帳に追加As a result, the user of the user terminal 1 can grasp on the navigation map the optimum facility that the user can easily use under the weather environment of each region.

(Modification 5)
The control operation of each unit constituting the user terminal 1, the map display device 2, and the information providing device 3 of this embodiment described above can be executed using hardware, software, or a composite configuration of both. is.

When processing is performed using software, a program recording a processing sequence can be installed in a memory within a computer incorporated in dedicated hardware and executed. Alternatively, it can be installed and executed in a memory within a general-purpose computer capable of executing various types of processing.

For example, the program can be recorded in advance in a hard disk or ROM as a recording medium. Alternatively, the program can be temporarily or permanently recorded on a removable recording medium. Such removable recording media can be provided as so-called package software. Removable recording media include various recording media such as magnetic disks and semiconductor memories.

The program is installed in the computer from the removable recording medium as described above. It will also be wirelessly transferred from the download site to your computer. In addition, it will be transferred to the computer by wire through the network.

As for the form of the program, it is possible to use it from a server on the network such as the cloud. There is also a form in which only part of the program is transferred to the computer for use.

(Modification 6)
Each unit constituting the map display system of the above-described embodiment is not limited to executing processes in chronological order according to the processing operations described in the above-described embodiment. For example, it is also possible to construct so as to execute the processing in parallel or individually, depending on the processing capacity of the device that executes the processing, or as necessary. Further, each function of the map display system of the above-described embodiment may be realized by cooperation of a plurality of information processing devices, and at least part of the information stored in the above-described storage units 22 and 32 may be It may be stored in the device's internal/external storage, or may be built on the cloud, for example.

1 user terminal 11 control unit 12 storage unit 13 input/output unit 14 location information acquisition unit 2 map display device 21 control unit 211 information reception unit 212 display range identification unit 213 area identification unit 214 area information acquisition unit 215 map design determination unit 216 Map display control unit 22 Storage unit 221 Map information storage unit 222 Route information storage unit 223 Area information storage unit 224 Map design storage unit 3 Information providing device 31 Control unit 32 Storage unit NW network

Claims (7)

A map display device for displaying a navigation map on a display unit,
display range specifying means for specifying a display range of the map to be displayed on the display unit;
area specifying means for specifying each area to be displayed on the map in the display range;
Acquisition means for acquiring weather information about each region;
determining means for determining a drawing design corresponding to the weather information of each region;
map display control means for displaying, on the display unit, a map image in which the regions on the map are drawn with the determined drawing design;
has
the acquisition means acquires the weather information in units of meshes, and calculates representative weather information for each region based on the weather information for each mesh included in the region;
The map display device , wherein the determination means determines a drawing design corresponding to the representative weather information of each region . 2. The map display device according to claim 1, wherein said weather information includes temperature information. The determination means determines facility information to be displayed in an area of the weather information according to the weather information,
3. The map display device according to claim 1, wherein said map display control means displays on said display unit a map image in which said determined facility information is drawn on said map. 4. The map display device according to any one of claims 1 to 3 , wherein the areas displayed on the map differ according to the display scale of the map. 5. The acquiring means specifies a mesh included in a polygon representing the region, and calculates an average value of the weather information of the specified mesh as the representative weather information of the region. The map display device according to any one of A method performed by a map display device that displays a navigation map on a display unit,
a display range specifying step of specifying a display range of the map to be displayed on the display unit;
an area identification step of identifying each area to be displayed on the map in the display range;
an obtaining step of obtaining weather information about each region;
a determination step of determining a drawing design corresponding to the weather information of each region;
a map display control step of displaying, on the display unit, a map image in which the regions on the map are drawn with the determined drawing design;
is performed by the map display device ,
In the acquisition step, the weather information is acquired in mesh units, and representative weather information for each region is calculated based on the weather information for each mesh included in the region;
The method , wherein the determination step determines a drawing design corresponding to the representative weather information of each region . A program to be executed by a computer of a map display device that displays a navigation map on a display unit,
a display range specifying process for specifying a display range of the map to be displayed on the display unit;
area identification processing for identifying each area to be displayed on the map in the display range;
Acquisition processing for acquiring weather information about each region;
a determination process of determining a drawing design corresponding to the weather information of each region;
map display control processing for displaying, on the display unit, a map image in which the regions on the map are drawn with the determined drawing design;
is executed by the computer ,
In the acquisition process, the weather information is acquired in mesh units, and representative weather information for each region is calculated based on the weather information for each mesh included in the region;
The program , wherein in the determination process, a drawing design corresponding to the representative weather information of each region is determined .

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