JP2010266323A - Map display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a map display apparatus for making a user know one's own positions, at a plurality of future times. <P>SOLUTION: The map display apparatus includes a map database 13 for storing map information; a travel log database 12 for accumulating external information on an external state as a travel history; a travel route generating section 16 for generating a travel route; a future position determining section 17 for determining a plurality of future positions as a plurality of expected arrival positions, in response to a time passage based on the travel history accumulated in the travel log database, if a vehicle runs on the travel route generated by the travel route generating section; a display information generating section 18 for combining map-drawing information generated, based on the map information obtained from the map database with display information for simultaneously displaying a plurality of the future positions determined by the future position determining section, and generating a drawing data; and a display section 19 for implementing a display operation, based on the drawing data generated by the display information generating section. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a map display device that is applied to, for example, a car navigation device and displays a map.

  2. Description of the Related Art Conventionally, as one of map display devices, an electronic map display device that can know its own position at a certain time is known (for example, see Patent Document 1). On the display unit of this electronic map display device, a map is displayed centering on the position indicated by the marker. By pressing the button, the past time is set, and the set time is displayed on the time display section. In the display unit, a map based on past position information stored in the memory is displayed, and the trajectory of the host vehicle can be traced. Further, by pressing another button, the future time is set, and the set time is displayed on the time display section. And the map of the point which moved on the path | route the estimated travel distance calculated | required from the average speed of a movement is displayed on a display part. Thereby, the arrival prediction point of the own vehicle in future time can be confirmed.

JP-A-11-202759

  In the electronic map display device disclosed in Patent Document 1 described above, it is necessary to set a future or past time that the user wants to know, and only the time set by the user is displayed. Thus, the user can only see one location in the future or past. Therefore, it is desired to develop a function capable of displaying a map corresponding to one's position at a plurality of future times.

  The present invention has been made to meet the above-described demand, and an object of the present invention is to provide a map display device that can know its position at a plurality of future times.

  In order to solve the above problems, the present invention provides a map database that stores map information, a travel log database that stores external information representing an external state as a travel history, a travel route generation unit that generates a travel route, A future position that determines a plurality of predicted arrival positions as a plurality of future positions according to the passage of time when traveling on the travel route generated by the travel route generator based on the travel history accumulated in the travel log database Display information generation that generates drawing data by combining the determination unit, map drawing information generated based on the map information acquired from the map database, and display information for simultaneously displaying a plurality of future positions determined by the future position determination unit And a display unit that performs display based on the drawing data generated by the display information generation unit.

  According to the present invention, a plurality of predicted arrival positions corresponding to the passage of time when traveling on a travel route are determined as a plurality of future positions, and display information for simultaneously displaying the determined plurality of future positions; Since the map information and the map information are combined and displayed, the user can know his / her position at a plurality of future times, and the convenience for the user is improved.

It is a block diagram which shows the structure of the map display apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the map display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the example of the screen displayed with the map display apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the map display apparatus which concerns on Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the map display apparatus which concerns on Embodiment 2 of this invention. It is a figure which shows the example of the screen displayed with the map display apparatus which concerns on Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the map display apparatus which concerns on Embodiment 3 of this invention. It is a figure which shows the example of the screen displayed with the map display apparatus which concerns on Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the map display apparatus which concerns on Embodiment 4 of this invention. It is a figure which shows the example of the screen displayed with the map display apparatus which concerns on Embodiment 4 of this invention. It is a block diagram which shows the structure of the map display apparatus which concerns on Embodiment 6 of this invention. It is a flowchart which shows operation | movement of the map display apparatus which concerns on Embodiment 9 of this invention. It is a figure which shows the example of the screen displayed with the map display apparatus which concerns on Embodiment 9 of this invention. It is a figure which shows the example of the screen displayed with the map display apparatus which concerns on Embodiment 10 of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a map display device according to Embodiment 1 of the present invention. The map display device includes a state monitoring unit 11, a travel log database 12, a map database 13, a facility database 14, a display setting unit 15, a travel route generation unit 16, a future position determination unit 17, a display information generation unit 18, and a display unit 19. It has.

  The state monitoring unit 11 monitors an external state that changes every moment during traveling. For example, GPS (Global Positioning System) information, VICS (Vehicle Information and Communication System: registered trademark / hereinafter, omitted) information External information such as vehicle speed information and acceleration information is acquired and stored in the travel log database 12 as a travel history. In addition, when the external state changes, the state monitoring unit 11 sends information necessary for updating the future position (details will be described later) to the future position determination unit 17.

  As described above, the travel log database 12 stores external information (such as GPS information, VICS information, vehicle speed information, and acceleration information) sent from the state monitoring unit 11 as a travel history. The travel history accumulated in the travel log database 12 is read by the future position determination unit 17 via the state monitoring unit 11.

  The map database 13 stores map information. Information necessary for calculating the average vehicle speed, such as the road type (highway, main road, general road, etc.) and the number of traffic lights included in the map information stored in the map database 13 is read by the future position determination unit 17. It is. The facility database 14 stores facility information representing facilities such as stores displayed on a map. The facility information stored in the facility database 14 is read by the display information generation unit 18.

  The display setting unit 15 switches on / off the future position display, selects the display method (after ○ minute / ○ hour ○ minute), switches the map scale, or the like by key input, screen touch input or voice input. Set the display format, such as scrolling the map. The content set by the display setting unit 15 is sent to the travel route generation unit 16 and the future position determination unit 17.

  If the route is being set, the travel route generator 16 reads the set route and sets it as a travel route. If the route is not being set, the travel route generation unit 16 determines the traveling direction from the travel history acquired from the travel log database 12 via the state monitoring unit 11, and sets the extension line of the traveling road as a future travel road. Generate. When the traveling road is interrupted on the screen, a neighboring main road along the traveling direction is generated as a future traveling road. When there are a plurality of nearby roads that meet the conditions, or when an expressway and a general road run side by side, a plurality of roads are generated as traveling roads. The travel road generated by the travel route generation unit 16 is sent to the future position determination unit 17.

  The future position determination unit 17 determines how many future positions are displayed at which position in the map. Here, the “future position” refers to a position that will reach after ○ minute or ○ hour ○ minute. The future position determination unit 17 includes a state acquisition unit 21, a display interval determination unit 22, and a future position display position determination unit 23.

  The state acquisition unit 21 acquires a travel history (including continuous travel time) from the travel log database 12 via the state monitoring unit 11, acquires external information from the state monitoring unit 11, and displays a map being displayed. The scale is acquired, and further, the display format is acquired from the display setting unit 15 via the travel route generation unit 16 and sent to the display interval determination unit 22.

  The display interval determination unit 22 determines the display intervals of a plurality of future positions based on the map scale sent from the state acquisition unit 21 and the vehicle speed indicated by the vehicle speed information acquired from the state monitoring unit 11. The display interval determined by the display interval determination unit 22 is sent to the future position display position determination unit 23.

  The future position display position determination unit 23 calculates a predicted arrival position after ○ minutes or ○ hours and ○ minutes, and determines the display position of the future position based on the display interval sent from the display interval determination unit 22. Further, the future position display position determination unit 23 also calculates the distance from the current location of each future position. Furthermore, taking into account the travel history acquired from the travel log database 12 via the state monitoring unit 11 and the travel conditions, a range from “the position when reaching the earliest” to “the position when reaching the latest” calculate. The future position display position determined by the future position display position determination unit 23 is sent to the display information generation unit 18 as display information together with the distance and range from the current location.

  The display information generation unit 18 is sent from the future position determination unit 17 to the map drawing information generated based on the map information acquired from the map database 13 and / or the facility drawing information generated based on the facility information acquired from the facility database 14. The incoming display information is synthesized and sent to the display unit 19 as final drawing data.

  The display unit 19 displays a map, a facility, a future position, various icons, and the like on the screen based on the drawing data sent from the display information generation unit 18. A transparent touch switch is placed on the screen of the display unit 19 and functions as a touch panel in combination with the display of the display unit 19.

  Next, the operation of the map display device configured as described above according to Embodiment 1 of the present invention will be described with reference to the flowchart shown in FIG.

  First, normal map display is performed (step ST11). That is, the display information generation unit 18 acquires map information from the map database 13 and sends it to the display unit 19 as drawing data. The display unit 19 generates, for example, a map as shown in FIG. 3A based on the drawing data sent from the display information generation unit 18 and displays the map on the screen.

  Next, it is checked whether or not the prediction icon has been touched (step ST12). That is, for example, it is checked whether or not a “prediction” icon provided as a dedicated key as shown in FIG. If it is determined in step ST12 that the prediction icon is not touched, the sequence returns to step ST11, and thereafter, the processing of steps ST11 and ST12 is repeatedly executed, and normal map display is continued.

  If it is determined in step ST12 that the prediction icon has been touched during the repeated execution of steps ST11 and ST12, then the average vehicle speed up to the present is detected (step ST13). That is, the future position determination unit 17 detects the average vehicle speed up to the present based on the vehicle speed information included in the travel history (including the continuous travel time) acquired from the travel log database 12 via the state monitoring unit 11.

  Next, the current time is acquired from the GPS information (step ST14). That is, the future position determination unit 17 acquires GPS information from the state monitoring unit 11 and acquires current time information included in the GPS information.

  Next, the future position is estimated in consideration of the vehicle speed and traffic jam information (step ST15). That is, the future position determination unit 17 estimates a plurality of future positions based on the vehicle speed detected in step ST13 and the traffic jam information included in the VICS information acquired from the state monitoring unit 11. Next, the future position time interval is set in accordance with the map range being displayed (step ST16). That is, the time required from one future position to the next future position is determined.

  Next, it is checked whether or not the route setting operation is being performed (step ST17). That is, it is checked whether the vehicle is operating according to the set route. If it is determined in step ST17 that the route setting operation is being performed, a plurality of future positions are displayed on the map of the set route (step ST18). Thereafter, the process ends. On the other hand, if it is determined in step ST17 that the route setting operation is not being performed, a plurality of future positions are displayed in the traveling direction of the traveling road (step ST19). Thereafter, the process ends. Thus, for example, as shown in FIG. 3B, a plurality of future positions such as 5 minutes later, 10 minutes later and 15 minutes later are displayed.

  As described above, according to the map display device according to the first embodiment of the present invention, a plurality of predicted arrival positions according to the passage of time when traveling on a travel route are determined as a plurality of future positions, Since the display information for simultaneously displaying the determined plurality of future positions and the map information are combined and displayed, it is possible to know one's position at a plurality of future times, which is convenient for the user. Improves.

  The map display device according to Embodiment 1 described above is configured to display the future position by pressing the “prediction” icon provided as a dedicated key, but the clock in the display screen is pressed. In the case, or when “prediction” or “prediction” is spoken by voice, the future position can be displayed.

  In the map display device according to the first embodiment described above, an example in which three future positions are displayed has been described. However, an appropriate number, for example, 2 to 4 is displayed in one screen so that the screen is not complicated. As described above, it is desirable that the time interval is automatically adjusted based on the map scale and the speed.

  Further, since the predicted arrival position varies depending on the driving condition, as shown in FIG. 3C, the range from the position where the arrival is the earliest to the position where the arrival is the latest is displayed as the future position. You can also

Embodiment 2. FIG.
FIG. 4 is a block diagram showing the configuration of the map display apparatus according to Embodiment 2 of the present invention. This map display device is configured by adding a display target selection determining unit 20 to the map display device according to the first embodiment shown in FIG. Below, it demonstrates centering on the part which is different from the map display apparatus which concerns on Embodiment 1. FIG.

  When the number of facilities on the map exceeds a certain reference value, the display target selection determination unit 20 deletes the display of facilities other than the facilities in the vicinity of the future position in order to make the screen easier to view. Execute the process. In this case, the display target selection determination unit 20 deletes the facility information other than the facilities in the vicinity of the future position from the facility information acquired from the facility database 14 and sends it to the display information generation unit 18. The display information generation unit 18 further synthesizes the facility drawing information generated based on the facility information sent from the display target selection determination unit 20 with map drawing information and display information for simultaneously displaying a plurality of future positions. Generate drawing data.

  In addition, when the number of facilities on the map exceeds a certain reference value, the display target selection determination unit 20 does not delete the display of facilities other than the facilities around the future position, It is also possible to configure the facilities other than the facility so that the display is thin and transparent.

  Next, the operation of the map display device configured as described above according to Embodiment 2 of the present invention will be described with reference to the flowchart shown in FIG. In the flowchart shown in FIG. 5, steps that perform the same processes as those in the map display device according to the first embodiment shown in the flowchart of FIG.

  The processing from step ST11 to step ST19 is the same as the processing of the map display device according to the first embodiment. When the process of step ST18 is completed and when the process of step ST19 is completed, the sequence proceeds to step ST21. In step ST21, it is checked whether or not the number of facilities is greater than or equal to a reference value. If it is determined in step ST21 that the number of facilities is not greater than or equal to the reference value, the process ends.

  On the other hand, if it is determined in step ST21 that the number of facilities is equal to or greater than the reference value, information other than the facility information around the future position is deleted from the screen (step ST22). That is, the display target selection determination unit 20 deletes the facility information other than the facilities around the future position from the facility information acquired from the facility database 14 and sends the deleted facility information to the display information generation unit 18. The display information generation unit 18 combines the facility drawing information generated based on the facility information sent from the display target selection determination unit 20 with the map drawing information and display information for simultaneously displaying a plurality of future positions. Data is generated and sent to the display unit 19. As a result, particularly in the city center, for example, as shown in FIG. 6A, there are too many facilities and the screen is often complicated. However, as shown in FIG. Since it is arranged, visibility can be improved.

  In addition, it is also possible to display not only the vicinity of a plurality of future positions (for example, the vicinity of a point after 10 minutes or 20 minutes), but also facilities that exist along a planned passage road on the way. Moreover, it is also possible to configure such that only facilities designated to be displayed in advance are displayed along the travel route.

  As described above, according to the map display device according to Embodiment 2 of the present invention, the user can easily know the facilities existing around the future position and the time required to arrive at each facility. So it ’s easier to plan your drive.

Embodiment 3 FIG.
The map display device according to Embodiment 3 of the present invention displays the future position at an optimal density. The configuration of this map display device is the same as that of the map display device according to the first embodiment shown in FIG.

  Next, the operation of the map display device according to Embodiment 3 of the present invention will be described with reference to the flowchart shown in FIG. In the flowchart shown in FIG. 7, steps that perform the same processing as in the map display device according to the first embodiment shown in the flowchart of FIG.

  The processing from step ST11 to step ST19 is the same as the processing of the map display device according to the first embodiment. When the process of step ST18 is completed and when the process of step ST19 is completed, the sequence proceeds to step ST31. In step ST31, it is checked whether or not a map screen enlargement / reduction operation has been performed. If it is determined in step ST31 that the map screen enlargement / reduction operation has not been performed, the sequence returns to step ST15, and the above-described processing is repeated.

  On the other hand, if it is determined in step ST31 that the map screen enlargement / reduction operation has been performed, a future position taking into account the vehicle speed is estimated (step ST32). That is, the future position determination unit 17 estimates a plurality of future positions based on the vehicle speed detected in step ST13.

  Next, the future position time interval is set in accordance with the displayed map range (step ST33). That is, the time required from one future position to the next future position is determined in accordance with the map range changed by the map screen enlargement / reduction operation. Next, a plurality of future positions are displayed on the map (step ST34). Thereby, for example, when an enlargement operation is performed in a state where the future position is displayed in increments of 5 minutes as shown in FIG. 8A, the map is enlarged as shown in FIG. 8B. When the future position is displayed in increments of 2 minutes and a reduction operation is performed, as shown in FIG. 8C, the map is reduced and the future position is displayed in increments of 10 minutes. Thereafter, the process ends.

  As described above, according to the map display device according to the third embodiment of the present invention, when the map scale is changed in a state where the future position is displayed, the future position at an optimal density according to the map scale and the average vehicle speed. Is displayed, and the time step width is adjusted so that approximately 2 to 5 future positions are displayed on the screen.

Embodiment 4 FIG.
The map display device according to the fourth embodiment of the present invention calculates and displays the future position by scrolling or touching the map. The configuration of this map display device is the same as that of the map display device according to the first embodiment shown in FIG.

  Next, the operation of the map display apparatus according to Embodiment 4 of the present invention will be described with reference to the flowchart shown in FIG. In the flowchart shown in FIG. 9, steps that perform the same processing as in the map display device according to the first embodiment shown in the flowchart of FIG.

  The processing from step ST11 to step ST19 is the same as the processing of the map display device according to the first embodiment. When the process of step ST18 is completed and when the process of step ST19 is completed, the sequence proceeds to step ST41. In step ST41, it is checked whether or not a map screen scroll operation has been performed. If it is determined in step ST41 that the map screen scroll operation has not been performed, the sequence returns to step ST15, and the above-described processing is repeated.

  On the other hand, if it is determined in step ST41 that the map screen scroll operation has been performed, it is then checked whether or not the route setting operation is being performed (step ST42). That is, it is checked whether the vehicle is operating according to the set route. If it is determined in this step ST42 that the route setting operation is being performed, the set route closest to the screen center position after scrolling is changed to the center position of the map screen (step ST43). Thereafter, the sequence proceeds to step ST45.

  On the other hand, if it is determined in step ST42 that the route setting operation is not being performed, the closest and most main road from the screen center position after scrolling is changed to the center position of the map screen (step ST44). Thereafter, the sequence proceeds to step ST45. In step ST45, a future position taking into account the vehicle speed is predicted. That is, the future position determination unit 17 estimates a plurality of future positions based on the vehicle speed detected in step ST13.

  Next, the future position time interval is set in accordance with the map range being displayed (step ST46). That is, the time required from one future position to the next future position is determined in accordance with the map range changed by the scroll operation. Next, a plurality of future positions are displayed on the map (step ST47). Thus, for example, when a scroll operation is performed in a state where a wide area map as shown in FIG. 10A is displayed, the map is enlarged and in increments of 15 minutes as shown in FIG. 10B. The future position is displayed. Thereafter, the process ends.

  As described above, according to the map display device of the fourth embodiment of the present invention, the set route closest to the screen center position after scrolling or the closest main road from the screen center position and the most main road is the center of the map screen. The location is changed, the future position time increment is set according to the displayed map range, and multiple future positions are displayed on the map, so the user can easily know the arrival time at the desired position Can do.

  Instead of scrolling the map screen, touch the desired position on the map screen, and the closest route from the touched position or the closest main road from the screen center position will be displayed on the map screen. It can be configured to change to the center position, set the future position time increment in accordance with the displayed map range, and display a plurality of future positions on the map.

Embodiment 5 FIG.
The map display device according to Embodiment 5 of the present invention is configured to present an appropriate break point and an expected arrival time at the break point from the continuous running time. The configuration of this map display device is the same as that of the map display device according to the first embodiment shown in FIG. 1 except for the function of the display information generation unit 18.

  In addition to the functions described in the first embodiment, the display information generation unit 18 calculates the continuous travel time based on the travel history acquired from the travel log database 12 via the state monitoring unit 11. More specifically, the continuous travel time is calculated by excluding a short pause time at an intersection or the like indicated by the travel history. Then, when a certain time has elapsed from the calculated continuous running time or when a preset time is exceeded, a rest point and an estimated arrival time at the rest point are calculated, and information representing these is obtained. The drawing data is generated by combining the map drawing information and display information for simultaneously displaying a plurality of future positions.

  As described above, according to the map display device according to the fifth embodiment, rest facilities (service area, road station, gas station, fast food store, convenience store, etc.) existing in the traveling direction are listed. Therefore, the driver can select the rest point by grasping the arrival time with reference to a plurality of future positions displayed at the same time.

Embodiment 6 FIG.
The map display device according to the sixth embodiment of the present invention displays the future position in consideration of the traffic jam passage time.

  FIG. 11 is a block diagram showing a configuration of a map display device according to Embodiment 6. In FIG. The configuration of this map display device is configured by adding a state-dependent display interval adjustment unit 24 to the future position determination unit 17 of the map display device according to the first embodiment.

  The state-dependent display interval adjustment unit 24 displays the display position based on the change in the traffic congestion status indicated by the traffic congestion information included in the VICS information obtained from the state monitoring unit 11 with respect to the display position determined by the future position display position determination unit 23. To correct. More specifically, the congestion degree and the congestion distance are calculated from the congestion information, and the time required to pass through the congestion location is calculated from these and reflected in the future position display.

  If the average vehicle speed decreases due to traffic jams, the intervals between a plurality of future positions may approach and the screen may be difficult to see, but according to the map display device according to the sixth embodiment, the display interval of the future positions is increased, The display can be adjusted while always maintaining an appropriate interval.

Embodiment 7 FIG.
The map display device according to the seventh embodiment of the present invention displays the future position when using the avoidance route of the traffic jam location. The configuration of this map display device is the same as that of the map display device according to the sixth embodiment shown in FIG. 11 except for the function of the future position determination unit 17. The future position determination unit 17 determines a future position on an avoidance route that avoids a traffic jam location calculated based on traffic jam information included in VICS information from the outside.

  Although the map display device according to the seventh embodiment is configured to display the future position when the avoidance route of the traffic jam location is used, the future location of both the avoidance route and the non-evasion route of the traffic jam location are simultaneously displayed. It can also be configured to display and provide the driver with criteria for whether to avoid it. Even if you can avoid traffic congestion safely by selecting an avoidance route, it may happen that the time is not shortened as a result of detouring, but according to this configuration, the future position is displayed on both the avoidance route and the non-avoidance route Since it comprised in this way, it becomes easy to judge whether avoidance operation should be performed.

Embodiment 8 FIG.
The map display device according to the eighth embodiment of the present invention displays each future position when using a highway and when using a general road. The configuration of the map display device is the same as that of the map display device according to the first embodiment shown in FIG. 1 except for the function of the future position determination unit 17. The future position determination unit 17 determines the future position for each of the expressway and the general road.

  For example, if you find that traffic jams are occurring in the direction of travel while driving on a highway, you may be wondering whether you should get off the road and drive on a general road or drive on a high-speed road as it is. According to the map display device according to the eighth aspect, the future positions of both the highway and the general road are displayed, so that it becomes easy to recognize which route can travel faster. In this case, by displaying the same time interval (for example, after 10 minutes or 20 minutes) on both routes, it is intuitive which route can be advanced faster by looking at the display interval of both. Can be easily understood.

Embodiment 9 FIG.
The map display apparatus according to the ninth embodiment of the present invention displays a plurality of future positions including before and after the specified time when the time is specified by voice input. The configuration of this map display device is the same as that of the map display device according to the first embodiment shown in FIG.

  Next, the operation of the map display apparatus according to the ninth embodiment of the present invention will be described with reference to the flowchart shown in FIG. In the flowchart shown in FIG. 12, steps that perform the same processing as the map display device according to the first embodiment shown in the flowchart of FIG.

  The processing from step ST11 to step ST19 is the same as the processing of the map display device according to the first embodiment. When the process of step ST18 is completed and when the process of step ST19 is completed, the sequence proceeds to step ST51. In step ST51, it is checked whether a future time utterance by voice input has been detected. If it is determined in step ST51 that a future time utterance due to voice input has not been detected, the sequence returns to step ST15 and the above-described processing is repeated.

  On the other hand, if it is determined in step ST51 that a future time utterance by voice input has been detected, it is then checked whether or not the route setting operation is being performed (step ST52). That is, it is checked whether the vehicle is operating according to the set route. If it is determined in step ST52 that the route setting operation is being performed, the sequence proceeds to step ST54.

  On the other hand, if it is determined in step ST52 that the route setting operation is not being performed, the closest and most important road from the screen center position after scrolling is changed to the center position of the map screen (step ST53). Thereafter, the sequence proceeds to step ST54. In step ST54, a future position taking into account the vehicle speed is predicted. That is, the future position determination unit 17 estimates a plurality of future positions based on the vehicle speed detected in step ST13.

  Next, the future position time interval is set in accordance with the map range being displayed (step ST55). That is, the time required from one future position to the next future position is determined in accordance with the map range changed by voice input. Next, a plurality of future positions are displayed on the map (step ST56). Thus, for example, when voice input is performed in a state where a map as shown in FIG. 13A is displayed, as shown in FIG. 13B, the future before and after the time specified by the voice input The position is displayed. Thereafter, the process ends.

  As described above, according to the map display device according to the ninth embodiment, for example, when “1 hour later” is designated by voice input, “45 minutes later”, “1 hour later”, and “1 hour 15” A wide range of maps including “After” are displayed, so you can search for break points or gas stations from nearby facilities.

  In the map display device according to the ninth embodiment, when time is specified by voice input, a plurality of future positions including before and after the specified time are displayed. The present invention is not limited to this, and other methods such as key input or screen touch input may be used.

Embodiment 10 FIG.
In the tenth embodiment of the present invention, not only “time” but also “distance” are displayed as future positions in the map display devices according to the first to ninth embodiments described above. The configuration of the map display device according to the tenth embodiment is the same as the map display device according to the first embodiment shown in FIG. 1, the map display device according to the second embodiment shown in FIG. 4, or the embodiment shown in FIG. It is the same as the structure of the map display apparatus which concerns on the form 6.

  That is, the display information generation unit 18 combines the distance information representing the distances to the plurality of future positions determined by the future position determination unit 17 into the map drawing information and display information for simultaneously displaying the plurality of future positions. To generate drawing data. The display unit 19 displays a map on the screen based on the drawing data sent from the display information generation unit 18. As a result, for example, as shown in FIGS. 14A and 14B, in addition to the time until arrival at the future position, the distance to the future position is displayed in correspondence with this time. In addition, it is desirable that this distance is not a linear distance but a travel distance.

  As described above, according to the map display device according to the tenth embodiment of the present invention, since it is configured to display “distance” in addition to “time” until it arrives at the future position, for example, the remaining distance When you want to find a gas station in a difficult situation, it will help you decide whether to refuel nearby or give priority to oil companies even a little ahead.

  The map display device according to the first to tenth embodiments described above can be modified as follows.

(1) First Modified Example When displaying a map from the start point to the destination at the time of route setting, a plurality of future positions can be displayed at appropriate intervals. According to the first modification, since the elapsed time during the route travel is known, it is easy to make a travel plan assuming a break point.

(2) Second Modification When the interval between a plurality of future positions becomes narrow due to traffic congestion and the screen becomes complicated, the time step width can be changed as appropriate to provide a screen with high visibility. That is, when a traffic jam portion and a traffic jam portion are mixed in the screen, the step size of the traffic jam portion is increased so that future positions are not overlapped. For example, adjust the increment according to the assumed driving speed, such as every 20 minutes in a traffic jam and every 5 minutes in other traffic, so that an appropriate number of future positions are always displayed on both sides. To.

(3) Third Modification ○ When the minute display is performed, it can be configured such that the position after the minute is constantly updated with the movement of the current position. In this case, as the vehicle travels, the position after O minutes also advances. ○ When displaying hours and minutes, the future position is displayed using a clear time that is easy to recognize. For example, if the current future position is “3:43”, it will be “3:50”, “4:00” instead of “3:53” and “4:03” after 10 minutes and 20 minutes. Use an easy-to-understand time display rounded to the minute. In this case, unlike the “○ minute later” display, the future position display after one minute is displayed as “3:51” and “4:01” display, and the future position is not advanced. , While displaying the future position of “4:00”. As the vehicle travels, the future position of “3:50” gradually approaches the current location, but when it gets close to a certain extent, the “3:50” display disappears, and in addition to “4:00,” the next “4 The future position at “10 minutes” is displayed.

  DESCRIPTION OF SYMBOLS 11 State monitoring part, 12 Travel log database, 13 Map database, 14 Facility database, 15 Display setting part, 16 Travel route generation part, 17 Future position determination part, 18 Display information generation part, 19 Display part, 20 Display object selection determination Part, 21 state acquisition part, 22 display interval determination part, 23 future position display position determination part, 24 state dependent display interval adjustment part.

Claims (14)

A map database for storing map information;
A travel log database that accumulates external information representing an external state as a travel history;
A travel route generator for generating a travel route;
Based on the travel history accumulated in the travel log database, a plurality of predicted arrival positions corresponding to the passage of time when traveling on the travel route generated by the travel route generation unit is determined as a plurality of future positions. Future position determination part,
A display information generating unit for generating drawing data by combining map drawing information generated based on information acquired from the map database and display information for simultaneously displaying a plurality of future positions determined by the future position determining unit;
A map display device comprising: a display unit that performs display based on the drawing data generated by the display information generation unit. The map display device according to claim 1, wherein the future position determination unit determines a range from a position at which it arrives earliest to a position at which it arrives latest as a future position. A facility database for storing facility information;
Of the facility information acquired from the facility database, comprising a display target selection determination unit that deletes facility information other than the facilities around the plurality of future positions determined by the future position determination unit,
The map display device according to claim 1, wherein the display information generation unit generates drawing data by combining the facility drawing information generated based on the remaining facility information deleted by the display target selection determination unit. . The future position determination unit determines the number of future positions and the display position based on the map scale being displayed and the average vehicle speed calculated based on information necessary for calculating the average vehicle speed included in the map information acquired from the map database. The map display device according to claim 1. The future position determination unit determines a plurality of future positions around the center position after scrolling or the touched position by scrolling or touching a map displayed on the display unit. Item 2. The map display device according to Item 1. The display information generation unit calculates a break point and an estimated arrival time at the break point from continuous running time calculated based on the travel history acquired from the travel log database, and represents the calculated break point and estimated arrival time The map display device according to claim 1, wherein drawing data is generated by combining the two. The map display device according to claim 1, wherein the future position determination unit determines a plurality of future positions in consideration of a traffic location passage time indicated by traffic information included in external information acquired from the outside. The map display according to claim 1, wherein the future position determination unit determines a plurality of future positions when a route that avoids a traffic jam location indicated by traffic jam information included in external information acquired from outside is used. apparatus. The future position determination unit determines a plurality of future positions for each of a case where a highway indicated by map information acquired from a map database is used and a case where a general road is used. Map display device. It has a display setting unit that indicates the time by voice,
The map display device according to claim 1, wherein the future position determination unit determines a plurality of future positions including before and after the predicted arrival position at the time designated by the display setting unit. The map display device according to claim 1, wherein the display information generation unit generates drawing data by combining distance information representing distances to a plurality of future positions determined by the future position determination unit. If the route is being set, the travel route generator reads the set route to generate a travel route,
The map display device according to claim 1, wherein the future position determination unit determines a plurality of future positions on the generated travel route when the travel route is generated by the travel route generation unit. The future position determination unit determines a plurality of future positions by changing a step size of an elapsed time for a traffic congestion point indicated by traffic congestion information included in external information acquired from the outside. Map display device. The map display device according to claim 1, wherein the future position determination unit changes the future position according to the movement of the current position.

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