JP4488365B2 - MAP INFORMATION DISPLAY DEVICE, MAP INFORMATION DISPLAY METHOD, MAP INFORMATION DISPLAY PROGRAM, AND RECORDING MEDIUM - Google Patents

Description

  The present invention relates to a map information display device, a map information display method, a map information display program, and a recording medium. However, the use of the present invention is not limited to the above-described map information display device, map information display method, map information display program, and recording medium.

  Conventionally, there is a technique for displaying map information on a display screen. For example, a current location detection unit for detecting the current location, a display unit for forming a map screen, a facility selection processing means for selecting a facility in a predetermined area set in correspondence with the current location, and the selected facility There is a navigation system having an emphasis notification processing means for emphasizing and notifying an operator.

JP 2004-20244 A

  However, in the conventional map information, since information is excessively displayed, a problem that it is difficult for a user to see necessary information is given as an example. Furthermore, when a large amount of information is displayed on a limited display screen, the user stares at the display screen in order to search for information that he / she wants to see, which causes an example of a problem that hinders driving. .

  On the other hand, in the above-described prior art of Patent Document 1, in order to highlight the facility that the operator wants to see, an operation input for selecting the facility of the operator is required each time, and this is troublesome for the operator. Can be mentioned. Furthermore, when complicated operation input is performed during driving, it is necessary to stop the operator's line of sight for a relatively long time on the operation terminal.

The map information display device according to the invention of claim 1 includes display means for displaying map information, control means for displaying the map information in any one display format from a plurality of types of display formats related to the map information, Each of the plurality of types of display formats is a format in which a part of the information included in the map information is highlighted according to different driving conditions of the vehicle, and the control means is configured to drive the vehicle. When the situation is a situation where at least a part of the road in the predetermined area including the current point of the vehicle is congested, only the road is highlighted by hiding information other than the road included in the map information. In addition, among the highlighted roads, a congested road is further highlighted than the other roads .

Exemplary embodiments of a map information display device, a map information display method, a map information display program, and a recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings.
(Functional configuration of map information display device)
First, the functional configuration of the map information display device according to the embodiment of the present invention will be described. FIG. 1 is a block diagram showing a functional configuration of a map information display device according to an embodiment of the present invention. In FIG. 1, the map information display device 100 includes an acquisition unit 101, a determination unit 102, a display control unit 103, and a display unit 104.

  First, the acquisition unit 101 acquires information on a user or movement of the user. Here, the user is a user who uses the map information display device 100, that is, a user who views the map information displayed by the map information display device 100. Specifically, for example, when the map information display device 100 is realized by a car navigation device, the user is a passenger such as a driver or a passenger, and is a portable terminal such as a mobile phone. If it is built in, it is the user who owns the portable terminal.

  Moreover, the information regarding a user is the information which identifies a user, for example, is information regarding a user's identification information or a user's visual acuity. The user identification information is information that allows each user to be identified, for example, information such as a unique code number assigned to each user and the name of the user. The information about the user's visual acuity is, for example, information that directly represents the user's visual acuity such as “0.7” or “1.0”, or information on the user's visual acuity such as “good” or “bad”. It is information representing the state.

  In addition, the information related to the movement of the user is information acquired before the movement by the moving user, when the moving is stopped, or the moving user, or information of the moving body moving around the user. For example, search information about a specific point by the user, information about a guide route for the user, information about arrival of the user at a specific point on the guide route, information about the user's current point, a predetermined information including the user's current point Information on traffic jams in the area.

  Here, the specific point is information indicating a point set or searched as a destination point or a transit point, and the search information related to the specific point is information indicating the point searched as the specific point or the specific point. Information indicating that a search has been performed. The guide route is a route that reaches or passes through a specific point, and the guide route for the user is a route for guiding the user to the specific point. The information on the guide route is information indicating the guide route itself or information indicating that the guide route has been searched.

  Moreover, the information regarding the arrival at the specific point is information indicating that the current point of the user (the map information display device 100 that the user has) has reached or approached the specific point on the guide route. For example, when the current location of the user matches the coordinates of the specific location, it can be detected that the specific location has been reached. In addition, when the current location of the user is moving toward the specific location and is within a predetermined distance from the specific location, it can be detected that the user is approaching the specific location.

  Moreover, the determination part 102 determines the display format which displays map information in the display format according to the information acquired by the acquisition part 101 among the multiple types of display formats regarding map information. Here, the map information is information displayed on the display unit 104 of the map information display device 100, and includes road network data including nodes and links, and features regarding facilities, roads, and other terrain (mountains, rivers, land). It is the image data drawn by using. Furthermore, character information, information such as facility names and addresses, road and facility images, road traffic congestion information, shades of display colors representing terrain undulations, and guidance routes can be displayed in a superimposed manner.

  The display format is a format for drawing the above-described map information on the display screen, and a plurality of types are prepared. For example, a normal display format that displays all the information contained in map information (normal display format), a display format that emphasizes character strings on map information (enlarged character display format), and the name of a facility on map information And display formats that emphasize addresses (facility name / address-oriented display format), display formats that emphasize roads (road-oriented display format), and display formats that emphasize terrain undulations (shape-oriented display format) are available. .

  Here, the highlighted display in the character enlargement display format, the facility name / address-oriented display format, the road-oriented display format, and the shape-oriented display format is the color of the target display data and the non-target display data in each display format. In other words, the display data to be displayed is emphasized and displayed as a result of relatively different contrasts.

In this case, non-target display data may be hidden. For example, in the facility name / address-oriented display format, the target display data is, for example, a character string of the facility name or address on the map information, and only the character string is displayed as it is. By hiding other character strings, it is possible to highlight the character string of the facility name or address on the map information. Similarly, in the road-oriented display format, the target display data is road data, and it is possible to highlight only road data by hiding character strings and facility images other than road data. .
Each of the character enlargement display format, facility name / address-oriented display format, road-oriented display format, and shape-oriented display format is characterized by character strings, facility names and addresses, roads, and shapes (for example, colored). Display format to emphasize or display format to highlight and hide some or all of the other information contained in the map information without characterizing the information Etc. are considered.

  In addition, the determination unit 102 uses the above-described map information to change the display format for displaying the map information into the normal display format, the enlarged character display format, the facility name / address-oriented display format, the road-oriented display format, and the shape described above. Among the important display formats, the display format associated with the information acquired by the acquisition unit 101 is determined. For example, when information about visual acuity is acquired by the acquisition unit 101, the character enlarged display format can be determined if the visual acuity is equal to or less than a predetermined threshold.

  In addition, the display control unit 103 controls the display screen included in the display unit 104 and displays the map information in the display format determined by the determination unit 102. For example, when the character enlargement display format is determined by the determination unit 102, only the character string in the map information is enlarged, and the map information with the enlarged character string is displayed on the display screen.

When the facility name / address-oriented display format is determined by the determination unit 102, the display control unit 103 displays the facility name and the map information in which the address is emphasized on the display screen. When the road-oriented display format is determined by the determination unit 102, the display control unit 103 displays, for example, map information in which the color of a congested road is emphasized more than other roads other than the road. In addition, when the shape-oriented display format is determined by the determination unit 102, the display control unit 103 displays map information in which the undulation of the terrain is emphasized on the display screen.
(Map information display processing procedure of the map information display device)
Below, the map information display process procedure of the map information display apparatus 100 concerning embodiment is demonstrated. FIG. 2 is a flowchart illustrating the map information display processing procedure of the map information display apparatus 100 according to the embodiment. In FIG. 2, first, the acquisition unit 101 acquires information on the user or the movement of the user (step S201).

  Subsequently, the determination unit 102 determines a display format corresponding to the information acquired by the acquisition unit 101 in step S201 among a plurality of types of display formats related to map information (step S202). Then, the display control unit 103 controls the display screen of the display unit 104 to display the map information in the display format determined by the determination unit 102 in step S202 (step S203).

  According to the embodiment described above, map information in which information that the user wants to know is emphasized among the map information can be displayed according to the situation of the user. Therefore, the user can easily and clearly visually recognize the information necessary for the user.

  If the information acquired by the acquisition unit 101 in step S201 is user identification information, if the display format is set for each user, the determination unit 102 determines the display format for each user. be able to. Therefore, it is possible to visually recognize the map information that matches the user's preference.

  Moreover, when the information acquired by the acquisition part 101 in step S201 is information regarding a user's visual acuity, map information can be displayed in a character enlarged display format. Therefore, even if the user is difficult to see fine characters in the map information, the user can easily and clearly visually recognize the character string in the map information.

  Further, when the information acquired by the acquisition unit 101 in step S201 is search information related to a specific point by the user, a facility name / address-oriented display that emphasizes identification information such as the name of the specific point that matches the search information. Map information can be displayed in a format. Therefore, the user can easily and clearly visually recognize the information he wants to know.

  In addition, when the information acquired by the acquisition unit 101 in step S201 is information related to the guide route for the user, identification information such as the name of a specific point on the guide route or a point in the vicinity thereof is set to other information other than the point. Map information can be displayed in a facility name / address-oriented display format that emphasizes more than point identification information. Therefore, even if the user is not gazing at the display screen, the user can easily and clearly visually recognize the identification information such as the name of the specific point on the guidance route by simply looking at the display screen.

In addition, when the information acquired by the acquisition unit 101 in step S201 is information related to reaching a specific point on the guidance route for the user, as described above, the user has reached the specific point, Since approaching is detected, the map information can be displayed in a facility name / address-oriented display format that emphasizes identification information such as the name of the specific point. Therefore, the user can easily and clearly visually recognize a specific point that has reached or is approaching by simply looking at the display screen without gazing at the display screen during route guidance. In addition, when the user passes a specific point, it is possible to highlight only necessary information on the display screen by canceling the highlighted display of the identification information of the specific point that has passed.

  If the information acquired by the acquisition unit 101 in step S201 is traffic jam information in a predetermined area including the current location of the user, the map information is displayed in a road-oriented display format that emphasizes the road in the map information. can do. Therefore, the user can easily and clearly visually recognize the road traffic network of the map information such as the shape of the road and the connection between the road and the road. In particular, by displaying a congested road with a higher emphasis than other roads, the user can easily and clearly visually recognize a congested location in addition to the road traffic network.

  In addition, when the information acquired by the acquisition unit 101 in step S201 is information on the current location of the user, the map information is displayed in a shape-oriented display format that emphasizes the undulation of the road including the current location or a nearby location. Can be displayed. Therefore, the user can easily and clearly visually recognize the undulations of the road around him / her. In addition, for example, it is possible to widen the range of selection of the road to be passed, for example, by selecting a road with gentle undulations and passing.

  In addition, when the information acquired by the acquisition unit 101 in step S201 is search information related to a specific point, a shape-oriented display format that emphasizes the undulation of a road including a specific point that matches the search information or a point in the vicinity thereof, Map information can be displayed. Therefore, the user can easily and clearly visually recognize the undulations of the terrain at or near the specific point without actually visiting the specific point searched.

  In addition, when the information acquired by the acquisition unit 101 in step S201 is information related to the guidance route to the specific point, the map information can be displayed in a shape-oriented display format that emphasizes the undulation of the guidance route. Therefore, the user can easily and clearly visually recognize the undulations of the guidance route before or during the route guidance. As a result, the user can know the undulation of the guidance route before receiving the route guidance according to the guidance route. A gentle guidance route can be re-searched.

Example 1 of the map information display apparatus 100 according to the above-described embodiment will be described below. The first embodiment is an example in which the map information display device 100 described above is applied to a navigation device mounted on a mobile terminal such as a vehicle (including a four-wheeled vehicle and a two-wheeled vehicle) and a portable terminal such as a mobile phone.
(Hardware configuration of navigation device)
First, the hardware configuration of the navigation apparatus according to Embodiment 1 of the present invention will be described. FIG. 3 is a block diagram illustrating a hardware configuration of the navigation device according to the first embodiment of the present invention. In FIG. 3, the navigation device includes a CPU 301, a ROM 302, a RAM 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, an audio I / F (interface) 308, and a microphone 309. , A speaker 310, an input device 311, a video I / F 312, a display 313, a communication I / F (interface) 314, and a GPS receiver 315. Each component 301 to 315 is connected by a bus 300.

  First, the CPU 301 governs overall control of the navigation device. The ROM 302 records programs such as a boot program, a route search program, a route guidance program, a voice generation program, and a map information display program.

  Here, the route search program searches for an optimum route from the departure point to the destination point using map information recorded on the optical disk 307 or the like. Here, the optimum route is the shortest (or fastest) route to the destination point or the route that best meets the conditions specified by the user. The guidance route searched by executing the route search program is output to the audio I / F 308 and the video I / F 312 via the CPU 301.

  Further, the route guidance program is based on the guidance route information searched by executing the route search program, the current location information of the navigation device acquired by the communication I / F 314, and the map information read from the optical disc 307. Generate real-time route guidance information. The route guidance information generated by executing the route guidance program is output to the audio I / F 308 and the video I / F 312 via the CPU 301.

  The sound generation program generates tone and sound information corresponding to the pattern. That is, based on the route guidance information generated by executing the route guidance program, the virtual sound source corresponding to the guidance point is set and the voice guidance information is generated, and output to the voice I / F 308 via the CPU 301.

  Also, the map information display program determines the display format of the map information displayed on the display 313 by the video I / F 312 and displays the map information on the display 313 according to the determined display format. The display format includes, for example, the “normal display format” that displays all the information included in the map information described above, the “enlarged character display format” that emphasizes the character string on the map information, and the facility information on the map information. There are “facility name / address-oriented display format” for emphasizing names and addresses, “road-oriented display format” for emphasizing roads, and “shape-oriented display format” for emphasizing terrain undulations.

  The RAM 303 is used as a work area for the CPU 301. The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls the reading / writing of the data with respect to the optical disk 307 according to control of CPU301. The optical disc 307 is a detachable recording medium from which data is read from the optical disc 307 according to the control of the optical disc drive 306. As the optical disc 307, a writable recording medium can be used. In addition to the optical disk 307, the removable recording medium may be an MO, a memory card, or the like. The above-described map information is recorded on the optical disc 307. Map information is used for route search and route guidance.

  The audio I / F 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. In addition, sound is output from the speaker 310. Examples of the input device 311 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, a keyboard, a mouse, a touch panel, and the like.

  The video I / F 312 is connected to the display 313. Specifically, the video I / F 312 includes, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, the display 313 is configured by a control IC or the like.

  The display 313 displays icons, cursors, menus, windows, or various data such as characters and images. As the display 313, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.

  The communication I / F 314 is connected to a network wirelessly or via a communication cable, and functions as an interface between the network and the CPU 301. The network includes a LAN, a WAN, a public line network, a mobile phone network, and the like. The communication I / F 314 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a wireless communication device, and other communication devices, and road traffic such as traffic congestion and traffic regulations distributed from the VICS center. Get information.

  Further, the GPS receiver 315 acquires information indicating the current position of the moving body (current position of the navigation device) using output values from GPS (Global Positioning System) and various sensors.

  Note that the acquisition unit 101, the determination unit 102, the display control unit 103, and the display unit 104 illustrated in FIG. 1 execute the programs recorded in the ROM 302, the RAM 303, the magnetic disk 305, the optical disk 307, and the like illustrated in FIG. And the function is implement | achieved by controlling each part in a navigation apparatus.

  As described above, according to the navigation device of the first embodiment, the functions of the units 101 to 104 included in the map information display device 100 shown in FIG. Since the map information display processing procedure shown (steps S201 to S203) can be executed, the map information in which the information that the user wants to know is emphasized can be displayed. Therefore, the user can easily and clearly visually recognize the information necessary for the user.

Next, Example 2 of the map information display device 100 according to the above-described embodiment will be described. This Example 2 is also an example in which the above-described map information display device 100 is applied to a navigation device, like the above-described Example 1. The navigation device according to the second embodiment displays map information in a display format corresponding to each user using the hardware configuration shown in the first embodiment. Note that the hardware configuration (see FIG. 3) of the navigation device according to the second embodiment is the same as that of the first embodiment described above, and a description thereof will be omitted.
(Navigation device identification information table)
First, an identification information table of the navigation device according to the second embodiment will be described. FIG. 4 is a chart showing an identification information table. 4, in the identification information table 400, user identification information 420 and display format information 430 are recorded in association with each other for each user ID 410. The user ID 410 is information for identifying each user, and is not limited to numbers, and may be, for example, a name arbitrarily set by the user.

The user identification information 420 represents personal information of the user, and includes, for example, user age information 421 and visual acuity information 422. The display format information 430 is information for specifying any one display format set for each user among the various display formats described above. The identification information table 400 is recorded on a recording medium such as the ROM 302, RAM 303, magnetic disk 305, or optical disk 307 of the navigation device.
(Map information display processing procedure of the navigation device)
Next, a map information display processing procedure of the navigation device according to the second embodiment will be described. FIG. 5 is a flowchart of the map information display processing procedure of the navigation device according to the second embodiment. In the flowchart of FIG. 5, first, the process waits until the user ID 410 is input (step S501: No), and if it is input (step S501: Yes), the identification information table 400 is searched (step S502). The display format is determined as the display format associated with the input user ID 410 (step S503). Then, map information corresponding to the user is displayed according to the determined display format (step S504).

  Here, FIG. 6A is an explanatory diagram (part 1) illustrating a display screen on which map information is displayed, and FIG. 6B is an explanatory diagram (part 2) illustrating a display screen on which map information is displayed. . In FIG. 6A, map information 610 displayed in the “normal display format” is displayed on the display screen 600. 6B, the map information 620 using the same information as in FIG. 6A is displayed on the display screen 600 in the “character enlarged display format”.

  The map information 610 displayed in the “normal display format” is displayed when the display format is not set or when the user ID 410 is not input. The map information 610 displayed in the “normal display format” is displayed when the user ID 410 input in step S501: Yes is “001”. The map information 620 displayed in the “character enlarged display format” is displayed when the user ID 410 input in step S501: Yes is “002”.

  6A, on the display screen 600, all character strings 611 included in the map information 610 are displayed in the same size and font. On the other hand, in FIG. 6B, the character string 621 in the map information 620 is emphasized on the display screen 600 by being enlarged with respect to the character string 611 in the map information 610 shown in FIG. It is displayed.

  In FIG. 6B, map information 620 in which the character string 611 is enlarged is displayed as an example of a method for emphasizing the character string 611. For example, the display color of the character string 611 is changed to the character string 611. The map information (none of which is not shown) may be displayed in which the display color is different from the display color around or the character string 611 is bold. Note that a method and a technique for emphasizing specific information in the display screen 600 are known techniques, and thus description thereof is omitted here. The same shall apply hereinafter.

  FIG. 7A is an explanatory diagram (part 3) showing a display screen 600 on which map information is displayed. FIG. 7-2 is an explanatory diagram (part 4) showing the display screen 600 on which map information is displayed. is there. In FIG. 7A, map information 710 is displayed on the display screen 600 in “normal display format”. 7-2, map information 720 using the same information as in FIG. 7-1 is displayed on the display screen 600 in “facility name / address-oriented display format”. The map information 720 displayed in the “facility name / address-oriented display format” is displayed when the user ID 410 input in step S501: Yes is “003”.

  In FIG. 7-2, the display screen displays the name of the facility on the map information such as address information such as “turf 2” and “turf 3” and facility name information such as “trade center” and “water bus stop”. The character string 721 indicating the address and the address is displayed with the map information emphasized by adding an enclosure to the character string 711 indicating the name and address of the facility on the map information illustrated in FIG.

  FIG. 8A is an explanatory diagram (part 5) showing a display screen 600 on which map information is displayed. FIG. 8B is an explanatory diagram (part 6) showing the display screen 600 on which map information is displayed. is there. In FIG. 8A, map information 810 is displayed on the display screen 600 in “normal display format”. 8B, map information 820 using the same information as in FIG. 8A is displayed on the display screen 600 in the “Road-oriented display format”. The map information 820 displayed in the “road priority display format” is displayed when the user ID 410 input in step S501: Yes is “004”.

  In FIG. 8B, the display screen 600 displays map information 820 that is emphasized by performing image processing such that the road 821 included in the map information 820 rises above the surrounding land. . In this display screen 600, only information necessary for passing through a specific road 821 such as an interchange name of an expressway is displayed, and information not directly related to the road 821 such as the name and address of a facility is not displayed. The map information 820 is displayed.

  In FIG. 8-2, the road 821 included in the map information 820 may be emphasized by rising from the surrounding land or the like. For example, all display colors other than the road 811 are displayed in similar colors. The road 811 may be displayed using a display color different from this color to emphasize the color.

  FIG. 9A is an explanatory diagram (part 7) showing a display screen 600 on which map information is displayed. FIG. 9-2 is an explanatory diagram (part 8) showing the display screen 600 on which map information is displayed. is there. In FIG. 9A, the map information 910 is displayed on the display screen 600 in the “normal display format”. Reference numeral 911 indicates the current location of the user. 9-2, the same map information 920 as in FIG. 9-1 is displayed on the display screen 600 in the “shape-oriented display format”. The map information 920 displayed in the “shape-oriented display format” is displayed when the user ID 410 input in step S501: Yes is “005”.

  9-2, the display screen 600 displays map information 920 in which the undulations of the road 922 including the user's current location 921 and nearby locations are emphasized. In FIG. 9-2, a road 922 having a higher altitude than the current location 921 of the user is highlighted (indicated by shading or hatching in FIG. 9-2), and displayed higher than the current location 921 of the user. The road 922 having a low altitude is displayed with emphasis (indicated by dots in FIG. 9-2) to the extent that it is understood that it is a downhill.

  According to the second embodiment described above, if a display format corresponding to the user ID 410 acquired in step S501 is set, the display format can be determined for each user in step S503. Therefore, the map information 620, 720, 820, 920 that matches the user's preference can be visually recognized. Thereby, for example, the user can suppress a decrease in attention to driving by staring at the display screen 600 during driving of the vehicle in order to obtain information desired to know. Can contribute.

Next, a navigation device according to Embodiment 3 will be described. The third embodiment is also an example in which the above-described map information display device 100 is applied to a navigation device as in the first and second embodiments. The navigation device according to the third embodiment displays the map information in the “character enlarged display format” that uses the hardware configuration shown in the first embodiment and expands and emphasizes the character string in accordance with the visual acuity of the user. To do. Note that the hardware configuration (see FIG. 3) of the navigation device according to the third embodiment is the same as that of the first embodiment described above, and a description thereof will be omitted.
(Map information display processing procedure of the navigation device)
Here, the map information display processing procedure of the navigation apparatus according to the third embodiment will be described. FIG. 10 is a flowchart of the map information display processing procedure of the navigation device according to the third embodiment. In the flowchart of FIG. 10, first, waiting until the user ID 410 is input (step S1001: No), and when it is input (step S1001: Yes), the database is searched (step S1002), and the vision information is displayed. 422 is acquired (step S1003).

Then, it is determined from the visual acuity information 422 acquired in step S1003 whether the visual acuity is less than 1.0 (step S1004). In step S1004, the visual acuity (here, “1.0”) that serves as a criterion for determination is, for example, an arbitrary visual acuity that is set when the navigation device is manufactured. When the visual acuity is 1.0 or more (step S1004: No), the series of processes is terminated. When the visual acuity is less than 1.0 (step S1004: Yes), the display format is determined to be “character enlarged display format” (step S1005), and the map information (character string is expanded by the determined display format) ( (See Fig. 6-2)
Step S1006).

  According to the third embodiment described above, when the information acquired in step S1003 is information related to the user's visual acuity, the map information can be displayed in the “character enlarged display format”. Therefore, even if the user is difficult to see fine characters in the map information, the user can easily and clearly visually recognize the character string in the map information. As a result, for example, in order to visually recognize information represented by a character string, it is possible to suppress a reduction in attention to driving by staring at a display screen during driving of the vehicle. Can contribute.

  In addition, according to the third embodiment, by registering the visual acuity information 422 in advance, it is possible to selectively display the map information in which the character string is enlarged and displayed only by inputting the user ID 410 at the time of use. . Therefore, the user can visually recognize the map information suitable for the user's visual acuity without performing complicated work. Thereby, for example, when driving is changed in the middle of movement, or when a plurality of users with different visual acuities are riding together, the display format can be easily switched between normal display and enlarged display. .

Next, a navigation device according to Embodiment 4 will be described. This Example 4 is also an example in which the above-described map information display device 100 is applied to a navigation device as in the above-described Examples 1-3. The navigation device according to the fourth embodiment uses the hardware configuration shown in the first embodiment, and emphasizes the name and address of the facility on the map information according to the acquired information. Map information is displayed according to the format. Note that the hardware configuration (see FIG. 3) of the navigation device according to the fourth embodiment is the same as that of the first embodiment described above, and a description thereof will be omitted.
(Map information display processing procedure of the navigation device)
Here, the map information display processing procedure of the navigation device according to the fourth embodiment will be described. FIG. 11 is a flowchart of the map information display processing procedure of the navigation device according to the fourth embodiment. In the flowchart of FIG. 11, it is first determined whether or not a guidance route has been searched (step S1101).

  In step S1101, when a guidance route is searched (step S1101: Yes), the display format is determined as “facility name / address-oriented display format” (step S1102), and specific information is determined according to the determined display format. The highlighted map information (for example, see FIG. 12) is displayed (step S1103). Note that the determination of the display format in step S1102 includes determination of specific information to be emphasized. In step S1102 in this case, information on route guidance is determined as specific information to be emphasized.

  On the other hand, when the guidance route is not searched in step S1101 (step S1101: No), it is determined whether or not a spot has been searched (step S1104). If the route has not been searched (step S1104: No). Returns to step S1101. When a point is searched (step S1104: Yes), the process proceeds to step S1102. In step S1102 in this case, information indicating the searched point is determined as specific information to be emphasized.

  Subsequently, it is determined whether or not route guidance is started within a predetermined time after displaying the map information in step S1103 (step S1105). If the route guidance is not started (step S1105: No), a series of processing is performed. Exit.

  In step S1105, when the route guidance is started within a predetermined time after displaying the map information (step S1105: Yes), it is determined whether or not the guide point has been reached (step S1106). Here, the guide point is a point for notifying the user of the guide information so as to move according to the guidance route, for example, a place where a right or left turn is made, an expressway interchange, a toll road toll gate, etc. A plurality of values such as 700 m before, 300 m before, and 50 m before are set.

  In addition, to notify the guidance information, specifically, for example, at a guidance point 700 m before the intersection that should turn left, a sound such as “turn left 700 meters” is output from the speaker 310, This is done by displaying an enlarged view of the intersection on the display screen 600. In step S1105: Yes, when the route guidance is started, the display information on the display screen 600 is switched to the display information for route guidance.

  In step S1106, it waits for the arrival at the guide point (step S1106: No), and when it reaches (step S1106: Yes), the display format is determined as “facility name / address-oriented display format” (step S1107). ). In step S1107, identification information indicating a guide point is determined as specific information to be emphasized.

  And the map information (refer FIG. 7-2) by which specific information was emphasized is displayed by the display format determined in step S1107 (step S1108). In step S1108, map information in which specific information is emphasized is displayed until it passes through the guidance point (step S1109: No). If the guide point is passed (step S1109: Yes), the display on the display screen 600 is switched (step S1110). In step S1110, for example, the display is switched to a route guidance display.

  Thereafter, it is determined whether or not the route guidance has ended (step S1111). If it has not ended (step S1111: No), the process returns to step S1106, and if it has ended (step S1111: Yes), a series of processes. Exit.

FIG. 12 is an explanatory diagram (No. 9) showing a display screen 600 on which map information is displayed. In FIG. 12, when information on route guidance is determined as information to be highlighted, map information 1200 is displayed on the display screen 600. In FIG. 12, the name 1202 of the facility on the guidance route 1201 or the facility in the vicinity thereof is highlighted with respect to the normal map information 610 in FIG. Specifically, in the example of FIG. 12, the point of “Hamamatsucho” station is a specific point on the guidance route 1201, and the point where “Akasaka Imperial Land” or “Tokyo Tower” is provided is the guidance route 1201. A point in the vicinity of the specific point above (hereinafter referred to as a “point in the vicinity of the route”)
It is. The point near the route is set, for example, ahead of the current point 1203 in the traveling direction.

  Although illustration is omitted, when route guidance is performed, map information in which identification information 1202 of a specific point or a nearby point is highlighted as the specific point or a nearby point is closer to the current point is displayed. May be. Specifically, for example, the map information in which the identification information 1202 of the specific point or the vicinity thereof is displayed larger as the specific point or the vicinity thereof is approached. In this case, when the user passes the specific point, the highlighted display of the identification information of the specific point that has passed is canceled.

  According to the fourth embodiment described above, when the search information related to the specific point by the user is acquired in step S1101, S1104, or S1106, the “facility name” that emphasizes the identification information such as the name of the specific point that matches the search information. The map information can be displayed in “/ address-oriented display format”. Therefore, the user can easily and clearly visually recognize the information he wants to know.

  Further, when information related to the guidance route for the user is acquired in step S1101, identification information such as the name of a specific point on the guidance route or a point near the point is emphasized more than identification information of other points other than the point. Map information can be displayed in “facility name / address-oriented display format”. Therefore, even if the user is not gazing at the display screen, the user can easily and clearly visually recognize the identification information such as the name of the specific point on the guidance route by simply looking at the display screen.

In addition, when information about arrival at a specific point on the guide route for the user is acquired in step S1106, it is detected that the user has reached or is approaching the specific point as described above. Therefore, the map information can be displayed in the “facility name / address-oriented display format” that emphasizes the identification information such as the name of the specific point. Therefore, the user can easily and clearly visually recognize a specific point that has reached or is approaching by simply looking at the display screen without gazing at the display screen during route guidance. In addition, when the user passes a specific point, it is possible to highlight only necessary information on the display screen by canceling the highlighted display of the identification information of the specific point that has passed.

Next, a navigation device according to Embodiment 5 will be described. The fifth embodiment is also an example in which the above-described map information display device 100 is applied to a navigation device, similarly to the above-described first to fourth embodiments. The navigation apparatus according to the fifth embodiment displays the map information in the “road-oriented display format” that emphasizes the road according to the acquired information using the hardware configuration shown in the first embodiment. Note that the hardware configuration (see FIG. 3) of the navigation device according to the fifth embodiment is the same as that of the first embodiment described above, and a description thereof will be omitted.
(Map information display processing procedure of the navigation device)
Here, the map information display processing procedure of the navigation apparatus according to the fifth embodiment will be described. FIG. 13 is a flowchart of the map information display processing procedure of the navigation apparatus according to the fifth embodiment. In the flowchart of FIG. 13, it is first determined whether or not traffic information in a predetermined area including the current location of the user has been acquired (step S1301). Here, the predetermined area is, for example, an area based on the current location such as a radius of 5 km centered on the current location of the user, or an area displayed on the display screen.

  In step S1301, the process waits until traffic information is acquired (step S1301: No). If acquired (step S1301: Yes), the display format is determined as “road-oriented display format” (step S1302). The map information (see FIG. 8-2) with the road highlighted is displayed in the displayed format (step S1303).

  In step S1303, using the traffic jam information acquired in step S1301: Yes, map information in which a traffic jam is further emphasized than other roads other than the road is displayed. Specifically, for example, the display color of the road that is congested is different from that of other roads, or the road that is congested (or the congested portion of the road) is blinked.

  According to the fifth embodiment described above, when traffic information in a predetermined area including the user's current location is acquired in step S1301, the map information is displayed in the “road-oriented display format” that emphasizes the road in the map information. Can be displayed. Therefore, the user can easily and clearly visually recognize the road traffic network of the map information such as the shape of the road and the connection between the road and the road.

  In particular, by displaying a congested road with a higher emphasis than other roads, the user can easily and clearly visually recognize a congested location in addition to the road traffic network.

  As a result, the user can know the road that is congested in the vicinity of the user, so that the user can avoid the traffic jam by, for example, entering a way out before being involved in the traffic jam. In this case, since the road is highlighted, it is easy for the user to consider an exit or a detour.

Next, a navigation device according to Embodiment 6 will be described. The sixth embodiment is also an example in which the above-described map information display device 100 is applied to a navigation device, similarly to the above-described first to fifth embodiments. The navigation device according to the sixth embodiment uses the hardware configuration shown in the first embodiment to display map information in a “shape-oriented display format” in which the terrain is emphasized according to the acquired information. . The hardware configuration (see FIG. 3) of the navigation device according to the sixth embodiment is the same as that of the first embodiment described above, and thus the description thereof is omitted.
(Map information display processing procedure of the navigation device)
Here, the map information display processing procedure of the navigation apparatus according to the sixth embodiment will be described. FIG. 14 is a flowchart of the map information display processing procedure of the navigation device according to the sixth embodiment. In the flowchart of FIG. 14, it is first determined whether or not the current location of the user has been acquired (step S1401). The current location of the user is location information where the navigation device is currently located, and is specifically expressed by, for example, latitude / longitude or coordinates in map information.

  In step S1401, when the current location of the user is acquired (step S1401: Yes), the process proceeds to step S1404. If the current location of the user has not been acquired (step S1401: No), it is determined whether or not a guidance route search has been performed (step S1402). When the search for the guidance route is performed (step S1402: Yes), the process proceeds to step S1404.

  In step S1402, if the guide route search has not been performed (step S1402: No), it is determined whether or not the user has searched for a spot (step S1403). When the search has not been performed (step S1403: No), the process returns to step S1401.

  When the user searches for a point (step S1403: Yes), the display format is determined to be “shape-oriented display format” (step S1404), and a predetermined road is determined according to the determined display format. The map information in which the undulations are emphasized is displayed (step S1405). In step S1405, if the current location of the user is acquired in step S1401: Yes, the map information in which the undulation of the guidance route is emphasized is displayed.

  On the other hand, if the guidance route is searched in step S1402: Yes, the map information in which the undulations of the road including the current location of the user and the location in the vicinity thereof is emphasized is displayed (see FIG. 9-2). Although not specifically illustrated, for example, when a user searches for a specific point, map information in which the undulations of the road including the specific point and its nearby points are emphasized may be displayed.

  According to the above-described sixth embodiment, when information about the current location of the user is acquired in step S1401, the map information is displayed in the “shape-oriented display format” that emphasizes the undulations of the road including the current location or a nearby location. Can be displayed. Therefore, the user can easily and clearly visually recognize the undulations of the road around him / her. In addition, for example, it is possible to widen the range of selection of the road to be passed, for example, by selecting a road with gentle undulations and passing.

  Further, when the search information related to the specific point is acquired in step S1403, the map information is displayed in the “shape-oriented display format” that emphasizes the undulation of the road including the specific point that matches the search information or a nearby point. Can do. Therefore, the user can easily and clearly visually recognize the undulations of the terrain at or near the specific point without actually visiting the specific point searched. This allows the user to go around the tourist area prior to the trip without actually going to a specific point or imagining the undulations of the road from the terrain imaged from the contour lines shown on a general map. You can use it by examining the topography.

  Further, when information related to the guide route to the specific point is acquired in step S1402, the map information can be displayed in the “shape-oriented display format” that emphasizes the undulation of the guide route. Therefore, the user can easily and clearly visually recognize the undulations of the guidance route before or during the route guidance. As a result, the user can know the undulation of the guidance route before receiving the route guidance according to the guidance route. A gentle guidance route can be re-searched.

  As described above, according to the navigation devices according to the first to sixth embodiments described above, by executing the map information display program, the map information in which the information that the user wants to know is emphasized among the map information is displayed to the user. Can be displayed depending on the situation. Therefore, the user can easily and clearly visually recognize the information necessary for the user.

  The map information display method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

It is a block diagram which shows the functional structure of the map information display apparatus concerning embodiment. It is a flowchart which shows the map information display processing procedure of the map information display apparatus concerning embodiment. 1 is a block diagram illustrating a hardware configuration of a navigation device according to Embodiment 1. FIG. It is a chart which shows an identification information table. It is a flowchart which shows the map information display process of the navigation apparatus concerning Example 2. It is explanatory drawing (the 1) which shows the display screen on which map information was displayed. It is explanatory drawing (the 2) which shows the display screen on which map information was displayed. It is explanatory drawing (the 3) which shows the display screen on which map information was displayed. It is explanatory drawing (the 4) which shows the display screen on which map information was displayed. It is explanatory drawing (the 5) which shows the display screen on which map information was displayed. It is explanatory drawing (the 6) which shows the display screen on which map information was displayed. It is explanatory drawing (the 7) which shows the display screen on which map information was displayed. It is explanatory drawing (the 8) which shows the display screen on which map information was displayed. It is a flowchart which shows the map information display processing procedure of the navigation apparatus concerning Example 3. It is a flowchart which shows the map information display processing procedure of the navigation apparatus concerning Example 4. It is explanatory drawing (the 9) which shows the display screen on which map information was displayed. It is a flowchart which shows the map information display processing procedure of the navigation apparatus concerning Example 5. It is a flowchart which shows the map information display processing procedure of the navigation apparatus concerning Example 6.

Explanation of symbols

101 Acquisition unit 102 Determination unit 103 Display control unit 104 Display unit

Claims (3)

Display means for displaying map information;
Control means for displaying the map information in any one display format from a plurality of types of display formats related to the map information,
Each of the plurality of types of display formats is a format in which a part of information included in the map information is highlighted according to different driving situations of the vehicle,
The control means does not display information other than the road included in the map information when the traveling state of the vehicle is a state where at least a part of the road in a predetermined area including the current point of the vehicle is congested. By doing so, only the road is highlighted, and among the highlighted roads, a congested road is further highlighted than the other roads . 2. The map according to claim 1, wherein the control unit makes the display color of the congested road different from the display color of the other road, and further highlights the congested road. Display device. The map display device according to claim 1, wherein the control unit blinks and displays the congested road more highlighted than the other roads .

Images