JP2015072247A - Navigation device, server device and map display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device, a server device and a mag display method in which names of locations in an old era are displayed within a range not inhibiting the route guidance, and the data amount for displaying the names of the locations in the old era is suppressed.SOLUTION: Data to be stored in a map database section 4 is used as character information in which a present road map and names of locations in an old era are displayed and the data amount for the old era is suppressed. Moreover, a control/calculation section 6 displays a map screen drawn by overlapping the character information in which the names of the locations in the old era are displayed on the present road map on a video display section 8 only when route guidance to the destination is not performed, and the route guidance is made not to be inhibited.

Description

  The present invention relates to a navigation device, a server device, and a map display method for displaying information of an old age on a map.

  There is a navigation system disclosed in Patent Document 1 as a conventional technique for displaying character symbol information of an old era on a current road map. In this navigation system, a background layer necessary to display the current terrain and road shape, a character symbol layer having data representing character information and map symbols, map matching and route guidance for aligning the vehicle position on the road The first map data having the road layer having the road network information used by the hardware for performing the data and the second map data that is older than the first map data and does not have the road layer are overlapped Was displayed on the display.

  Moreover, there is a navigation device of Patent Document 2 as a conventional technique for performing voice guidance based on a specific age aspect and expression. In this navigation device, the destination coordinates specified on the old map of a specific era are calculated, route search is performed on the current map data, and expressions such as conversation sentences, words and place names corresponding to the age Voice guidance.

JP 2007-199331 A JP 2001-59734 A

In the case of the above-mentioned patent document 1, since the background and the character symbols of the second map data in the old age are composed of a single layer or multiple layers, there is a problem that the data amount becomes large.
In addition, since there is no mechanism to change the map screen to be displayed depending on the operation state of the route guidance function, the character and symbol information of the old era is displayed when the user really needs only the route guidance function, and visibility There was a problem that became an obstructive factor.

In the case of Patent Document 2, since old map data and coordinate calculation data are required, there is a problem that the amount of data becomes large as in Patent Document 1.
In addition, since the route map with the old map and the expression of a specific age is available, the old map is displayed on the current map when the user really needs only the route guidance function. There is a problem that an operation to change the value is required, which becomes an obstructive factor in terms of operability.

  The present invention has been made to solve the above-described problems, and displays the name of an old age place within a range that does not hinder route guidance, and the amount of data for displaying the name of the old age place. An object of the present invention is to provide a navigation device, a server device, and a map display method that suppresses the problem.

  A navigation device according to the present invention displays a position of a moving body on a map screen and provides route guidance to a destination, and includes a display unit that displays the map screen, a current road map, and an era older than the present Overlay the text information representing the name of the old era on the current road map only when the route database to the destination is not provided and the map database storing the character information representing the name of the place A control / arithmetic unit for displaying the drawn map screen on the display unit is provided.

  A server device according to the present invention displays a map screen and the position of a moving body on a display device and provides route guidance to a destination. A map database that stores character information that represents information and a map screen in which character information that represents the name of an old era is overlaid on the current road map only when route guidance to the destination is not performed. And a control / arithmetic unit that is transmitted to and displayed on the display device.

  The map display method according to the present invention provides a route guidance to a destination by displaying a map screen and the position of a moving body, wherein the control / calculation unit is based on the current road map from the map database and is older than the current one. A map screen in which character information representing the name of an old era is overlaid on the current road map only if character information representing the name of the era is acquired and route guidance to the destination is not performed Is displayed on the display device.

  According to the present invention, only when the route guidance to the destination is not performed, the name of the place of the old era is displayed on the current road map, so the route guidance is not hindered. In addition, in order to display the name of a place of an age older than the present, character information representing the name is stored in the map database, so that an increase in data amount can be suppressed.

It is a block diagram which shows the structure of the navigation apparatus which concerns on Embodiment 1 of this invention. 3 is a flowchart showing an operation of the navigation device according to the first embodiment. It is a figure which shows an example of the map screen which an image | video display part displays when route guidance is not performed. It is a figure which shows an example of the map screen which a video display part displays, when performing route guidance. It is a figure which shows an example of the display age selection screen which a video display part displays. It is a figure which shows another example of the map screen which a video display part displays, when route guidance is not performed. It is a figure which shows an example of the audio | voice output of the map screen and audio | voice output part which the video display part of the navigation apparatus concerning Embodiment 2 of this invention displays. It is a figure which shows an example of the audio | voice output of the map screen and audio | voice output part which the video display part of the navigation apparatus concerning Embodiment 3 of this invention displays. It is a figure which shows the outline | summary of the navigation system which concerns on Embodiment 4 of this invention.

Embodiment 1 FIG.
A navigation device 1 shown in FIG. 1 is mounted on a moving body such as a vehicle, and includes a position detection unit 2 that detects a current position, a map information acquisition unit 3 that obtains map information from the outside, and map information. A map database unit 4 that stores information, an operation unit 5 that receives requests for display and settings from the user, a control / calculation unit 6 that calculates these information and controls screen display and audio output, and a control / calculation unit 6 includes a memory unit 7 that works as a work memory when calculating 6, a video display unit 8 that displays video information from the control / calculation unit 6, and an audio output unit 9 that outputs audio information from the control / calculation unit 6. Is done.

  The position detection unit 2 receives a signal from a GPS (Global Positioning System) satellite through the GPS receiving antenna 2a, and detects the position of the vehicle on which the navigation device 1 is mounted. The detected current vehicle position is output to the control / calculation unit 6.

  The map database unit 4 stores map information. This map information includes at least (1) road network data, (2) map data, and (3) character information data.

(1) Road network data Road network data consists of information such as nodes that represent points on the current road and links that connect the nodes, and is used for road shape display, map matching, and guidance route search. Is done.
(2) Map data Map data is an image of the map background representing the current topography (river, sea, etc.).
Using the road network data and the map data, a road map is generated in which the road shape is displayed on the map background.

(3) Character information data Character information data is character information representing the name of a place and position information of the place. The location includes land such as roads, countries and prefectures, and topography such as rivers and seas. In addition to the current name, the name of the place includes names of ages older than the present (Meiji era, Edo era, Sengoku era, etc.). For example, it includes data sets for each period such as current road name # 1 and place name # 1, road name # 2 and place name # 2 in the Meiji period, road name # 3 and place name # 3 in the Edo period. As a result, road names and place names of each age can be displayed on the current road map.

  If the current place and the place of the old age partially match / do not match, the position information of the matching part may be set as character information representing the name of the place. For example, when a part of the current road overlaps with a part of the road of the old era, character information data in which position information and character information representing the road name of the old era are set for the overlapped part is prepared.

Map information having such a data structure is stored in the map database unit 4 in advance.
Alternatively, the current road network data, the map data, and the character information data are stored in the map database unit 4 in advance, and the character information data of the old age is stored in the map information acquisition unit 3 by an external map server (invalid as necessary). It may be acquired from the figure) and stored in the map database unit 4. On the other hand, the character information data of the old age is stored in the map database unit 4 in advance, and the current road network data, map data, and character information data are obtained from the external map server by the map information acquisition unit 3 as necessary. You may make it acquire and store in the map database part 4. FIG.
Moreover, you may make it the map information acquisition part 3 acquire the update data of the map information stored in the map database part 4 from an external map server.

  The map information acquisition unit 3 acquires map information from a map server outside the host vehicle through the wireless communication antenna 3 a according to an instruction from the control / calculation unit 6 and stores the map information in the map database unit 4 via the control / calculation unit 6.

  The control / calculation unit 6 stores in the map database unit 4 map matching that estimates the current location of the vehicle based on the vehicle position detected by the position detection unit 2 and the road network data stored in the map database unit 4. The map display around the own vehicle position is drawn using the map information that is displayed, the map display that is displayed on the video display unit 8, the route search that searches the route from the own vehicle position to the destination set by the user, etc. The route guidance for showing the route on the road map and guidance are provided, the map information acquisition unit 3 is instructed, and update data of the map database unit 4 is updated from an external map server (not shown).

The operation unit 5 receives an input operation by a user. The operation unit 5 includes a touch panel and buttons. When the operation unit 5 is configured by hardware such as a touch panel, the configuration includes software that outputs a signal input through the hardware to the control / arithmetic unit 6.
The video display unit 8 includes a liquid crystal display and displays video information such as a map screen output from the control / calculation unit 6. The voice output unit 9 is configured by a speaker or the like, and reproduces voice information for route guidance output from the control / calculation unit 6.

Next, the operation of the navigation device 1 will be described.
FIG. 2 is a flowchart for explaining the operation of the navigation device 1.
When the engine is started (step ST1), the navigation device 1 is activated, the position detection unit 2 starts detecting the vehicle position, and the control / calculation unit 6 displays the vehicle position on the current road map around the vehicle position. 100 are matched (step ST2). When the vehicle matching on the road map is completed (step ST3 “YES”), the control / calculation unit 6 confirms whether route guidance to the destination is being performed (step ST4).

  When route guidance to the destination is not performed (step ST4 “NO”), the control / calculation unit 6 confirms whether display age setting information is stored in the memory unit 7 (step ST5). The display age setting information is that the user sets the age of the name of the place to be displayed on the road map (current or older than the current time) via the operation unit 5, and the control / calculation unit 6 stores it in the memory unit 7. It is the stored information.

  If there is display age setting information in the memory unit 7, the control / calculation unit 6 reads the setting information (step ST 5 “YES”), and displays the display age superimposed on the current road map around the vehicle position. Is extracted from the map database unit 4 (step ST6). Subsequently, based on the position information included in the extracted character information data, the control / calculation unit 6 creates a map screen in which the character information of the place of the display age is overlaid on the current road map (step ST7). . Then, the video display unit 8 displays the map image created by the control / calculation unit 6 (step ST8).

  When there is no display age setting information in the memory unit 7 (step ST5 “NO”), the control / calculation unit 6 sets the display age to the current time (step ST9), and displays the current road map around the vehicle position. Current character information data to be displayed in a superimposed manner is extracted from the map database unit 4 (step ST6). Subsequently, the control / calculation unit 6 creates a map screen in which the character information of the current location is overlaid on the current road map based on the position information included in the extracted character information data (step ST7), and video The display unit 8 displays the map screen (step ST8). Thereafter, the control / calculation unit 6 returns to step ST2 and repeats the above processing.

  FIG. 3 is a diagram illustrating an example of a map screen displayed by the video display unit 8 when route guidance is not performed. When the display age is older than the present time, the control / calculation unit 6 sets the vehicle position 100 on the current road map 101 on the road map 101 as shown in FIG. The name of the place (Mino country, Suganuma village, etc.) of an age older than the present is displayed.

  On the other hand, when the route guidance to the destination is being performed (step ST4 “YES”), the control / calculation unit 6 uses the display restriction release request used for managing the presence / absence of the display restriction release request from the user. The flag is confirmed (step ST15). When the route guidance is being performed, the control / calculation unit 6 sets the display age to the present (step ST16) unless there is a display restriction release request detailed below (step ST15 "NO"), and the current The name of the current location is displayed on the road map (steps ST6 to ST8).

  FIG. 4 is a diagram illustrating an example of a map screen displayed by the video display unit 8 when performing route guidance. Regardless of whether the display age is currently set or old during the route guidance, the control / calculation unit matches the current vehicle position 100 on the current road map 110 and displays the current map on the road map 110. Displays the name of the place (Gifu Prefecture, Kakamigahara, etc.).

  In this way, while performing route guidance to the destination, the name display of the place of the old age is restricted so that the route guidance function and the information display function as a road map are not hindered. This provides the user with history and climate information about his / her area in a range where the route guidance function and the information display function as a road map are not obstructed, especially in situations where he / she is driving near his / her home where the route guidance function is not used. It is possible to provide a navigation device 1 that has interest and attachment in the region.

Here, the display age setting method by the user will be described in detail.
FIG. 5 is a diagram illustrating an example of a display age selection screen displayed by the video display unit 8.
When a display age change request is input from the user via the operation unit 5 (step ST10), the control / calculation unit 6 displays a display age selection screen 120 as shown in FIG. 5 through the video display unit 8 (step ST10). ST11). In this example, three buttons 121 to 123 that can set “Sengoku period”, “Edo period”, and “Meiji period” that are older than the current one, and an “undo” button 124 that sets the current display period are displayed. The user selects a desired display age via the operation unit 5. The control / calculation unit 6 accepts the selection operation via the operation unit 5 (step ST12), and stores it in the memory unit 7 as display age setting information (step ST13).

  As explained in the flowchart of FIG. 2, the control / calculation unit 6 returns from the old name display to the current name display during route guidance so as not to impair the route guidance function to the destination and the information display function as a road map. Display restrictions to be implemented. However, in case a user other than the driver wants to resume the display of the name of the old era, if there is a display restriction release request from the user via the operation unit 5, it is old even during route guidance. The name of the place of the time can be displayed.

  Specifically, when a display restriction release request is input from the user via the operation unit 5 (step ST14), the control / calculation unit 6 displays the selection screen 120 shown in FIG. (Step ST11), the user inputs the display age via the operation unit 5. The control / calculation unit 6 accepts the selection operation via the operation unit 5 (step ST12), stores it in the memory unit 7 as display age setting information, and sets the display restriction release request flag to ON (step ST13). ).

Even when the route guidance is being performed (step ST4 “YES”), the control / calculation unit 6 is stored in the memory unit 7 if the display restriction release request flag is ON (step ST15 “YES”). Based on the setting information of the displayed age, the name of the place of the old age is displayed on the current road map (steps ST6 to ST8).
On the other hand, if the display restriction release request flag is OFF (step ST15 “NO”), the control / calculation unit 6 sets the display age to the current time (step ST16), and displays the current location on the current road map. The name is displayed (steps ST6 to ST8).
Thus, only when there is a display restriction cancellation request from the user, the name of the place of the old age is displayed on the current road map during route guidance.

  As described above, according to the first embodiment, the navigation device 1 stores the video display unit 8 that displays the map screen, and the current road map and the character information that represents the name of the place of an age older than the present. Only when the route guidance to the destination is not performed with the database unit 4, a map screen in which character information representing the name of an old era is overlaid on the current road map is displayed on the video display unit 8. The control / calculation unit 6 is provided. Thus, only when the route guidance to the destination is not performed, the name of the place in the old age is displayed, so the route guidance is not hindered. Moreover, since the character information representing the name is stored in the map database unit 4 in order to display the name of the place of the age older than the present, an increase in the data amount can be suppressed.

  Moreover, according to Embodiment 1, the navigation apparatus 1 is provided with the operation part 5 which receives operation by a user, and the map database part 4 memorize | stores the character information showing the name of the place of several ages older than the present, The control / arithmetic unit 6 accepts a period selection operation from the user through the operation unit 5, acquires character information indicating the name of the place of the period from the map database unit 4, and draws it superimposed on the current road map. I made it. For this reason, when traveling in areas that do not obstruct route guidance, especially near homes that do not use route guidance, users can be provided with history and climate information about their own region, and they can have more interest and attachment in their own region. Such a high added value navigation device 1 can be provided.

  Further, according to the first embodiment, when the control / calculation unit 6 receives an operation for canceling the display restriction from the user through the operation unit 5, even if the route guidance to the destination is being performed, A map screen in which character information representing the name of an old era is overlaid on the road map is displayed on the video display unit 8. For this reason, the name display of the place of the old age can be restarted whenever the user desires.

In the first embodiment, the name of the old age place is displayed on the current road map. However, the name of the current place and the name of the old age place may be written together.
For example, as shown in FIG. 6, the control / calculation unit 6 displays the name of the old place (for example, Mino) and the name of the current place (for example, Gifu Prefecture) on the current road map 130 together. To do.

Embodiment 2. FIG.
The navigation device 1 according to the second embodiment has the same configuration as that of the navigation device 1 shown in FIG. 1 and will be described below with reference to FIG.
In the second embodiment, when the control / calculation unit 6 has a speech synthesis function and the name of an old era place is displayed on the current road map, the old era of the place that is currently traveling is displayed. Is output from the voice output unit 9 as a voice.

Specifically, the control / calculation unit 6 performs map matching using the road network data stored in the map database unit 4 and the vehicle position detected by the position detection unit 2 to identify the current location, Is extracted from the character information data in the map database unit 4. Further, the control / arithmetic unit 6 performs voice synthesis processing on the extracted character information to generate voice information, which is output from the voice output unit 9.
If there is no location information of an old age that matches the current location of the matching calculation result, an old age location that exists within a predetermined range centered on the current location is selected, and the name is output as a voice. May be.

  It is desirable that the voice output of the place name is executed at least at regular intervals or at the time of changing the place name regardless of whether there is a request from the user. When there is a request to the control / arithmetic unit 6, the name of the old era of the current location at that time is output as a voice.

  FIG. 7 is a diagram illustrating an output example of the video display unit 8 and the audio output unit 9 when route guidance is not performed. As shown in FIG. 7, the control / calculation unit 6 displays the name of a place in an era older than the present on the road map 101 in a state where the vehicle position 100 is matched on the current road map 101. Furthermore, the control / calculation unit 6 gives the name of the old era of the place that matches the current location, such as the road on which the vehicle is traveling, to the voice information 102, for example, “Currently passing through Inuyama Village in Owari Kunitanba” It converts and notifies from the audio | voice output part 9. FIG.

  As described above, according to the second embodiment, the navigation device 1 includes the voice output unit 9 that outputs voice, and the control / calculation unit 6 is only provided when the route guidance to the destination is not performed. Character information representing the name of an old age place existing within a predetermined range from the position is converted into voice information and output from the voice output unit 9. For this reason, when traveling in areas that do not obstruct route guidance, especially near homes that do not use route guidance, users can be provided with history and climate information about their own region, and they can have more interest and attachment in their own region. Such a high added value navigation device 1 can be provided.

Embodiment 3 FIG.
The navigation device 1 according to the third embodiment has the same configuration as that of the navigation device 1 shown in FIG. 1 and will be described below with reference to FIG.
In the third embodiment, as character information data stored in the map database unit 4, introduction information (character information, images, videos) for introducing historically famous places related to historical incidents and persons. Etc.). In addition, the control / calculation unit 6 has a voice synthesis function, and when the name of an old age place is displayed on the current road map, the voice output unit 9 gives an introduction of the current driving location. The output or the image or video introducing the place is displayed on the video display unit 8.

Specifically, the control / calculation unit 6 performs map matching using the road network data stored in the map database unit 4 and the vehicle position detected by the position detection unit 2 to identify the current location, It is confirmed whether or not introduction information of the place is stored in the map database unit 4 with respect to the place that matches the above. When the introduction information is stored, the control / calculation unit 6 extracts the introduction information from the character information data of the map database unit 4, converts the character information included in the introduction information into voice information, and outputs a voice output unit. 9 to output. Further, the control / calculation unit 6 performs additional processing (for example, adding a frame to the character string) on the character information included in the introduction information, draws it on the map screen, and displays it on the video display unit 8. Further, when the introduction information includes images or videos, the control / calculation unit 6 draws them on the map screen and displays them on the video display unit 8.
If there is no location information of a famous place in the old age that matches the current location of the matching calculation result, select a famous location in the old age that exists within a predetermined range centered on the current location and introduce it Information may be audio output and displayed.

  Audio output and display of introduction information is preferably performed at a fixed interval or at the timing when the nearest famous place is switched regardless of whether or not there is a request from the user. When there is a request from the user to the control / calculation unit 6, the present location introduction information at that time is output and displayed as a voice.

  FIG. 8 is a diagram illustrating an output example of the video display unit 8 and the audio output unit 9 when route guidance is not performed. As shown in FIG. 8, the control / calculation unit 6 displays the name of a place in an era older than the present on the road map 101 in a state where the vehicle position 100 is matched on the current road map 101. In this example, since the introduction information of the road 103 on which the vehicle is traveling is stored in the map database unit 4, the control / calculation unit 6 extracts the introduction information, for example, “ It is converted into voice information 104 “This road is called a road” and notified from the voice output unit 9. In addition, the control / calculation unit 6 creates a road name 105 called “Inaki Kaido” in which the character information of the name of the old era of the running road 103 is additionally processed, and displays it on the road map 101. This makes it possible to introduce information on the road 103 that is currently running.

  In the example of FIG. 8, only the old road name 105 (highway name) is displayed on the current road map. However, not only the name but also a landscape photograph of the old road (highway), a person with a border. And photographs of incidents may be displayed. In order to further increase the added value, the display content may be a continuous photograph or a moving image using animation as long as the data capacity of the map database unit 4 allows.

  Further, in the example of FIG. 8, the road is introduced when the currently running road is a historically famous road. However, the road is not limited to the road, and is historically within a predetermined range from the current location. If there is a famous place, it is possible to introduce the place.

  As described above, according to the third embodiment, the map database unit 4 stores at least one of character information, images, and moving images that introduce places of old times, and the control / calculation unit 6 Only when the route guidance to is not performed, the character information that introduces the place of the old age existing within the predetermined range from the vehicle position is converted into voice information and output from the voice output unit 9, or the character information, At least one of an image and a moving image is displayed on the video display unit 8. For this reason, when traveling in areas that do not obstruct route guidance, especially near homes that do not use route guidance, users can be provided with history and climate information about their own region, and they can have more interest and attachment in their own region. Such a high added value navigation device 1 can be provided.

Embodiment 4 FIG.
FIG. 9 is a diagram showing an outline of the navigation system according to the fourth embodiment. In the navigation system shown in FIG. 9, the display device 10 mounted on the vehicle displays a map screen in cooperation with at least one of the portable information terminal 11 such as a smartphone and the server device 12.

First, a case where the display device 10 displays a map screen in cooperation with the server device 12 will be described.
In this configuration, the display device 10 may communicate directly with the server device 12 or the display device 10 may communicate with the server device 12 via the portable information terminal 11. The server device 12 includes at least the map database unit 4 and the control / calculation unit 6 described in the first to third embodiments, and the display device 10 includes at least the video display unit 8 and the audio output unit 9. .
Other configurations such as the position detection unit 2 and the operation unit 5 are provided in the portable information terminal 11 or the display device 10.

The display device 10 or the portable information terminal 11 notifies the server device 12 from the portable information terminal 11 of information such as the position of the vehicle detected by the position detection unit 2, display age setting information, and display restriction release request.
The control / calculation unit 6 of the server device 12 creates a road map in which the vehicle is map-matched based on the notified vehicle position and the map information in the map database unit 4, and only when route guidance is not performed. A map screen on which the name of the place of the era according to the display age setting information is superimposed is created and transmitted to the display device 10. When performing route guidance, a map screen on which the name of the current location is superimposed is created.
The display device 10 receives the map screen from the server device 12 by direct communication or communication via the portable information terminal 11 and displays it on the video display unit 8.

Next, a case where the portable information terminal 11 creates a map screen in cooperation with the server device 12 and displays the map screen on the display device 10 will be described.
In this configuration, the portable information terminal 11 includes at least the position detection unit 2 and the control / calculation unit 6 described in the first to third embodiments, and the server device 12 includes at least the map database unit 4. The display device 10 includes at least a video display unit 8 and an audio output unit 9 in addition to a communication function with the portable information terminal 11.
Other configurations such as the operation unit 5 are provided in the portable information terminal 11 or the display device 10.

The portable information terminal 11 is brought into a vehicle on which the display device 10 is mounted, and the position detection unit 2 detects the position of the vehicle. Further, the portable information terminal 11 acquires information such as display age setting information and a display restriction release request directly from the user or via the display device 10.
The control / calculation unit 6 of the portable information terminal 11 acquires map information from the map database unit 4 of the server device 12 based on the detected position of the vehicle, creates a road map that maps the vehicle, and provides route guidance. Only when it is not performed, a map screen on which the name of the place of the era according to the setting information of the display age is superimposed is created and transmitted to the display device 10. When performing route guidance, a map screen on which the name of the current location is superimposed is created.
The display device 10 receives the map screen from the portable information terminal 11 and displays it on the video display unit 8.
The function of the control / calculation unit 6 is divided into the portable information terminal 11 and the server device 12, the server device 12 performs the main processing of the control / calculation unit 6, and the portable information terminal 11 is a part of the control / calculation unit 6. You may make it perform the process of.

  As described above, according to the fourth embodiment, the server device 12 displays the map screen and the position of the vehicle on the display device 10 and provides route guidance to the destination. Character that represents the name of the old era on the current road map only if the map database unit 4 storing the character information representing the name of the old era and the route guidance to the destination are not provided The control screen is configured to include a control / calculation unit 6 that transmits and displays a map screen on which information is superimposed and displayed on the display device 10. Even in this configuration, the same effects as those of the first to third embodiments can be obtained.

  In addition, the map display method according to the fourth embodiment is to display the map screen and the position of the vehicle on the display device 10 and perform route guidance to the destination. The control / calculation unit 6 includes the map database unit 4. Text information indicating the name of the current road map and the place of the age older than the current one is obtained, and the name of the place of the old age is shown on the current road map only when route guidance to the destination is not performed The display device 10 is configured to display a map screen on which character information is superimposed and drawn. Even in this configuration, the same effects as those of the first to third embodiments can be obtained.

  In the first to fourth embodiments, the navigation device (or display device) according to the present invention is mounted on a vehicle. However, the present invention is not limited to in-vehicle use. That is, the navigation device according to the present invention may be used as a navigation device for moving objects including people, vehicles, railways, ships, and aircraft, and is particularly suitable for being brought into a vehicle or mounted on a vehicle.

  In addition to the above, within the scope of the present invention, the present invention can be freely combined with each embodiment, modified any component of each embodiment, or omitted any component in each embodiment. Is possible.

  DESCRIPTION OF SYMBOLS 1 Navigation apparatus, 2 Position detection part, 2a GPS receiving antenna, 3 Map information acquisition part, 3a Wireless communication antenna, 4 Map database part, 5 Operation part, 6 Control / calculation part, 7 Memory part, 8 Image | video display part, 9 Audio output unit, 10 display device, 11 portable information terminal, 12 server device, 100 own vehicle position, 101, 110, 130 road map, 102, 104 audio information, 103 road, 105 road name, 120 selection screen, 121-124 button.

Claims (9)

In a navigation device that displays the position of a moving object on a map screen and provides route guidance to a destination,
A display for displaying a map screen;
A map database that stores text information representing the current road map and the names of places in the era older than the present,
A control / calculation unit that displays on the display unit a map screen in which character information representing the name of the old era is superimposed on the current road map only when route guidance to a destination is not performed A navigation device comprising: An audio output unit for outputting audio,
The control / arithmetic unit converts character information representing the name of the place of the old era that exists within a predetermined range from the position of the moving body into voice information only when route guidance to the destination is not performed. The navigation apparatus according to claim 1, wherein the output is performed from the voice output unit. The map database stores character information that introduces the place of the old age,
The control / arithmetic unit converts the character information that introduces the place of the old era that exists within a predetermined range from the position of the moving body into voice information only when route guidance to the destination is not performed. The navigation apparatus according to claim 2, wherein the navigation apparatus outputs the sound from the voice output unit. The map database stores at least one of character information, an image, and a video that introduce the place of the old age,
The control / arithmetic unit only includes character information, an image, and a moving image that introduces the place of the old era that exists within a predetermined range from the position of the moving body only when the route guidance to the destination is not performed. The navigation device according to any one of claims 1 to 3, wherein at least one of the following is displayed on the display unit. The old age place is a historically famous old age road,
5. The navigation apparatus according to claim 3, wherein the control / calculation unit introduces the road when the moving body is located on the historically famous old road. It has an operation unit that accepts user operations,
The map database stores character information representing names of places of a plurality of times older than the present,
The control / calculation unit receives a selection operation of the era from the user through the operation unit, obtains character information representing the name of the place of the era from the map database, and draws it over the current road map The navigation device according to any one of claims 1 to 5, wherein It has an operation unit that accepts user operations,
When the control / calculation unit receives a display restriction release operation from the user through the operation unit, even if the route guidance to the destination is being performed, the old era is displayed on the current road map. The navigation apparatus according to any one of claims 1 to 6, wherein a map screen on which character information representing a place name is drawn is displayed on the display unit. A server device that displays a map screen and the position of a moving body on a display device and provides route guidance to a destination,
A map database that stores text information representing the current road map and the names of places in the era older than the present,
Control for transmitting and displaying a map screen in which character information representing the name of the old era is overlaid on the current road map to the display device only when route guidance to the destination is not performed A server device comprising an arithmetic unit. A map display method for displaying a map screen and the position of a moving body on a display device to provide route guidance to a destination,
Only when the control / calculation unit obtains the current road map from the map database and the character information indicating the name of the place of the age older than the present, and does not provide route guidance to the destination, the current road map A map display method comprising: displaying on the display device a map screen on which character information representing the name of the place of the old era is overlaid.

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