JP2011227002A - On-vehicle navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display easily a map around a via place set in a route guidance.SOLUTION: A control part switches a map in the route guidance to a map including the specified via place to display the same (S23). As when a current vehicle position is included in the map after switching, when the current vehicle position and the via place are comparatively close on a map screen, and when map data is already stored in an image memory, a map switching including the specified via place is performed as automatic scroll from the current vehicle position to the specified via place. And as when the current vehicle position is not included in the map after switching, when the current vehicle position and the via place are comparatively far on the map screen, and when map data around the specified via place needs to be read newly in the image memory, the map switching is performed as a screen switching (jump) at a point of time when reading the map data into the image memory is completed.

Description

  The present invention relates to an in-vehicle navigation device.

2. Description of the Related Art Conventionally, in-vehicle navigation devices that provide route guidance from a departure place to a destination are known in order to assist a driver when driving a vehicle.
In this in-vehicle navigation system, when a user sets a departure point and a waypoint (the last waypoint corresponds to a destination), a search for a guide route from the departure point to all the waypoints to the final waypoint is performed. The map including the guidance route is displayed on the display device, and the route guidance is performed by voice and display (see, for example, Patent Document 1).

JP 2008-20334 A

As described above, when route guidance is performed using an in-vehicle navigation device, if it is desired to search for traffic jam information at each waypoint and surrounding facilities, the user can manually map the map to the vicinity of each waypoint. After scrolling by the operation, it is necessary to perform an operation for acquiring traffic jam information and an operation for searching surrounding facilities, which is troublesome. Especially when the distance to the waypoint is long, it is necessary to change the display scale of the map to shorten the time to display. There was also a risk that the waypoint would be off the map.
Accordingly, an object of the present invention is to provide an in-vehicle navigation device capable of easily displaying a map around a waypoint set during route guidance.

In order to solve the above-described problem, a first aspect of the present invention is an in-vehicle navigation device that displays a guide route that passes through one or more set waypoints on a map of a display device and performs route guidance. The map being route-guided can be switched to a map including a designated waypoint among the one or more waypoints.
According to the above configuration, the map being route-guided can be switched to a map including the designated waypoint among the set waypoints or one or more of the set waypoints, so scrolling operation or enlargement / reduction operation can be performed endlessly It is possible to display a map including the designated waypoint without any problems.

According to a second aspect of the present invention, in the first aspect, when the scale of the map including the designated waypoint is changed, the scale of the map is changed around the designated waypoint.
According to the above configuration, when changing the scale of a map that includes a designated stopover, the scale of the map is changed around the specified stopover, so that the specified stopover may be removed from the display screen even if the scale is changed. There is no.

In the third aspect of the present invention, in the first aspect or the second aspect, the map including the designated waypoint is displayed at the same scale as the map displayed during the route guidance, or cannot be displayed at the same scale. Is displayed at a scale closest to the scale of the map displayed during route guidance.
According to the above configuration, the scale is not changed before or after the map switching, or it is displayed at a closer scale, so it is easy to grasp the sense of distance, the area of the site, the size of the building, etc., and useful information Can be obtained as

According to a fourth aspect of the present invention, in any one of the first to third aspects, the map during route guidance is displayed in either the heading-up mode or the north-up mode, and the plan view mode or the bird's-eye view mode is displayed. When the map including the designated waypoint is switched, the map is displayed in the same mode as the map being route-guided.
According to the above configuration, when switching a map including a designated waypoint, the map is displayed in the same mode as the map being route-guided, so the map orientation and screen configuration do not change before and after switching, and it is easy The display content of the map after switching to can be grasped.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, an operation button for designating the designated waypoint is displayed on a map display screen during route guidance.
According to the above configuration, since the operation button for designating the designated waypoint is displayed on the map display screen during route guidance, the map including the designated waypoint can be easily displayed by operating this operation button. Can do.

According to a sixth aspect of the present invention, in any one of the first to fourth aspects, an operation button is provided on the map display screen during route guidance to call and specify a route point other than the designated route point. It is characterized by that.
According to the above configuration, it is possible to easily display a map having any one of a plurality of set waypoints as a designated waypoint.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, an approach direction of the vehicle to the designated waypoint is displayed on a map including the designated waypoint.
According to the above configuration, since the direction of the vehicle's approach to the designated waypoint is displayed on the map including the designated waypoint, it is possible to easily grasp the situation of its own traveling direction when heading to the designated place. Can do.

  According to the present invention, it is possible to easily display a map around a waypoint set during route guidance.

It is a general | schematic block diagram of a car navigation apparatus. It is explanatory drawing of the display screen of embodiment. It is a processing flowchart of an embodiment. It is a processing flowchart of a designated via map display subroutine. It is explanatory drawing of the example of a display after switching to the map containing a designation | designated stopover. It is a process flowchart of the designation | designated via-location map display subroutine of a 1st modification. It is operation | movement description schematic diagram of a 1st modification. It is operation | movement description schematic diagram of a 2nd modification. It is operation | movement description schematic diagram of a 3rd modification.

Next, preferred embodiments of the present invention will be described with reference to the drawings.
[1] Embodiment FIG. 1 is a schematic block diagram of a car navigation apparatus.
The car navigation device 10 is a device that is mounted on a vehicle such as a passenger car and has a navigation function and a facility search function for performing route guidance of the vehicle.
The car navigation device 10 includes a GPS unit 11, a gyro unit 12, an interface (I / F) unit 13 to which a signal indicating the running state of the vehicle is input from the vehicle side on which the car navigation device 10 is mounted, a storage unit 14, An operation unit 15, a display control unit 16, a display unit 17, an audio output control unit 18, an audio output unit 19, a wireless network control unit 20, and a control unit 21 that centrally controls these units. I have.

The GPS unit 11 receives GPS radio waves from GPS satellites via the GPS antenna 11a, and obtains the position coordinates indicating the current position of the vehicle and the traveling direction from the GPS signals superimposed on the GPS radio waves by calculation.
The gyro unit 12 includes a gyro sensor (not shown), and outputs relative vehicle orientation information detected by the gyro sensor to the control unit 21.
A parking brake signal BS and a vehicle speed pulse signal SP are input to the interface unit 13 as signals indicating the running state of the vehicle from the vehicle side. Signals indicating the traveling state of these vehicles are output to the control unit 21. The control unit 21 is based on the parking brake signal BS and the vehicle speed pulse signal SP, and the vehicle is currently traveling. Or whether it is stopped.

  The storage unit 14 includes a hard disk drive device having a recording medium having a relatively large data storage area or a CD / DVD drive device. The storage unit 14 has a route guidance database 14a in which a route guidance database storing various data such as map information and display image data used for route guidance is stored in addition to a control program for route guidance. ing.

  In addition to the plurality of operation buttons 15a1 to 15an, the operation unit 15 further includes a touch panel 15b disposed on the front side of the display panel 17a of the display unit 17, and a user is displayed on the display panel 17a. When the touch panel 15b is touched with a finger or the like in association with the various button displays, a signal indicating the touched location is input to the control unit 21. As a result, the control unit 21 identifies which button the user has attempted to perform a touch operation in contrast to the position of various button displays displayed on the display panel 17a.

  The display unit 17 includes the above-described display panel 17a. The display panel 17a can be configured using, for example, a liquid crystal display panel, an EL (Electro Luminescent) display panel, or the like. The display control unit 16 includes a drawing processor (not shown), receives a drawing command including display instructions such as map information and button display from the control unit 21, and controls the display unit 17 to perform display based on the drawing command. To do.

The audio output control unit 18 includes a D / A converter, an amplifier, and the like (not shown), converts a voice data signal for route guidance into digital / analog, amplifies it with an amplifier, and an audio output unit 19 composed of a speaker or the like. Through the vehicle interior.
The wireless network control unit 20 includes a wireless antenna 20a, establishes wireless communication with an access point (not shown), connects to the communication network via the access point, and other devices such as an external server connected via the communication network Controls data transmission / reception to / from.

  The control unit 21 centrally controls each part of the car navigation device 10, functions as a work area of the CPU 21a, temporarily stores various data, a RAM 21c, various control programs executed by the CPU 21a, and A ROM 21b in which data is stored in a nonvolatile manner is provided, the current location and traveling direction of the vehicle are specified based on the detection results of the GPS unit 11 and the gyro unit 12, and a map around the current location is displayed. Further, when the destination is set, the control unit 21 calculates the optimum route to the destination, displays it on the display map, and executes route guidance processing to the destination.

FIG. 2 is an explanatory diagram of a display screen according to the embodiment.
The display screen 31 of the display unit 17 includes a map screen 32 on which the current position M of the host vehicle and the guidance route NV are displayed, and an intersection information display region 33 that displays information on the nearest intersection in the traveling direction on the guidance route. A time display area 34 for displaying time, a map position switching button 35 for switching to a map including a designated waypoint, a current location menu display button 36 for displaying a current location menu, a mode change button 37 for switching a map display mode, and a map A map direction switching button 38 for switching whether the display is performed in the heading-up mode or the north-up mode, an information display area 39 for displaying the surrounding information of the host vehicle and the highway entrance / exit information included in the displayed map, Display scale change button 40 for changing the scale of the map being displayed, audio playback state and change It includes audio playback state button 41 for the. On the audio playback state button 45, for example, “audio off” is displayed when the audio is not played, “CD” is displayed when the CD is played, “AM” is displayed when the AM broadcast is received, and FM broadcast. When receiving, "FM" is displayed so that the audio playback state can be easily grasped.

Here, the display panel 17a and the touch panel 15b cooperate with the map position switch button 35, the current location menu display button 36, the mode change button 37, the map display mode switch button 38, the display scale change button 40, and the audio playback state button 41. Function as buttons.
In the above configuration, the map position switching button 35 has information indicating the designated waypoint of the switching destination (in FIG. 2, a flag indicating the destination is displayed), and the distance to the designated waypoint (7.5 km in FIG. 2). ), The estimated arrival time (10:49 arrival in FIG. 2) to the designated waypoint is displayed, and it is easy to make an operation plan (drive plan).

Next, the operation of the embodiment will be described.
FIG. 3 is a processing flowchart of the embodiment.
When performing route guidance, first, the user operates the operation unit 15 to set one or a plurality of waypoints (step S11).
Specifically, the waypoint is specified by directly inputting a point on the map screen via the touch panel 15b, or by inputting route place designation information such as an address, a telephone number, latitude / longitude, and a map code. .

Thereby, the control part 21 searches the route guidance database 14a of the memory | storage part 14, and produces | generates a guidance route. In this case, when only one waypoint is set, the placepoint becomes the destination, and a guide route from the current position of the own vehicle to the destination is searched. In addition, when multiple waypoints are set, the waypoint that was set as the last waypoint to be routed becomes the destination, and other waypoints are halfway waypoints that go along the way to the destination. It becomes.
Then, the control unit 21 that has generated the guide route displays the map screen 32 on which the current position M of the host vehicle and the guide route NV are displayed on the display screen 31 of the display unit 17 as shown in FIG. S13).
Subsequently, the control unit 21 performs route guidance by voice and screen display according to the generated guidance route NV (step S14).

By the way, in this embodiment, by designating any waypoint during route guidance, a map including the designated placepoint can be displayed immediately.
In general, transit points are set as break points or points that are important for traffic. Facilities around the transit point, traffic congestion, construction section (detour associated with construction) This is for facilitating acquisition of traffic information.

FIG. 4 is a process flowchart of the designated via-location map display subroutine.
In the route guidance process according to the route guidance process flowchart shown in FIG. 3, the control unit 21 processes the designated via map display subroutine for determining whether or not the map position switching button 35 is operated by the interruption process. ing.
That is, the control unit 21 determines whether or not the map position switching button 35 has been operated when the interrupt timing of the designated route map display subroutine is reached (step S21).
If it is determined in step S21 that the map position switching button 35 has not been operated (step S21; No), the process proceeds to the route guidance process flowchart again. Therefore, the control unit 21 continues the route guidance while maintaining the display of the map currently displayed on the display screen 31 of the display unit 17.

If it is determined in step S21 that the map position switching button 35 is operated (step S21; Yes), the control unit 21 specifies the map display point corresponding to the operation of the map position switching button 35 as the designated waypoint. (Step S22).
In this case, the map display point corresponding to the operation of the map position switching button 35 is the last route to be routed if a route point (destination) to be routed last or a plurality of route points is set in advance. Of the route points other than the route point, the route point to be passed next is specified as the designated route point.

And the control part 21 switches and displays the map in route guidance to the map containing designation | designated waypoint (step S23).
In this case, the switching of the map including the designated waypoint is relatively close to the current position of the vehicle and the designated waypoint on the map screen, as in the case where the current position of the vehicle is included in the map after switching, When the map data is already stored in the image memory, the map is switched by automatically scrolling from the current position of the vehicle to the designated waypoint.
In addition, as if the current position of the vehicle is not included in the map after switching, the current position of the vehicle and the designated waypoint are relatively far on the map screen, and new map data near the designated place is displayed as an image. When it is necessary to read into the memory, the map is switched by screen switching (jump) when the reading of the map data into the image memory is completed.

FIG. 5 is an explanatory diagram of a display example after switching to a map including a designated waypoint.
In FIG. 5, the same parts as those in FIG.
On the display screen 31 of the display unit 17, a ring-shaped cursor CS representing a designated waypoint, a map screen 51 displaying the current position M of the vehicle and a guide route NV, and a designated route that displays information on the designated waypoint. A location information display area 52, a time display area 34 for displaying the time, a return button 53 for returning the display to the previously displayed route guidance screen, and a fine adjustment button 54 for finely adjusting the map display point. And a determination button 55 for displaying a menu for confirming the position, acquiring traffic information, searching for nearby facilities, etc., a plan view mode for performing map display in a plan view, and a bird's eye view mode for performing map display in a bird's eye view A mode change button 37 for switching the map display mode such as a map orientation switch button 38 for switching whether the map display is performed in the heading-up mode or the north-up mode. Display scale change button 40 for changing the scale of the displayed map, a map code display area 56 for displaying a map code corresponding to the latitude / longitude coordinates of the designated waypoint, and the latitude / longitude coordinates of the designated waypoint And a latitude / longitude coordinate display area 57.

In FIG. 5, the designated waypoint is a route point that should be passed next among route points other than the destination, and the next route point is displayed at the center of the ring-shaped cursor CS.
As a result, in the map after switching including the designated waypoint, specify when you want to zoom in to see more details or zoom out (wide area) to get a rough overview of the surrounding map By changing the scale of the map around the transit point, the designated transit point is always located in (in the center of) the screen, and the situation around the designated transit point can be surely grasped.

At this time, the map code corresponding to the latitude / longitude coordinates of the designated waypoint is displayed in the map code display area 56, and the latitude / longitude coordinates of the designated waypoint are displayed in the latitude / longitude coordinate display area 57. .
The designated waypoint information display area 52 displays the distance, direction, and place name from the current position of the host vehicle, which is information about the designated waypoint. Specifically, in the case of the example shown in FIG. 5, it is indicated by an arrow that the designated waypoint currently designated is located diagonally left forward with respect to the traveling direction of the host vehicle. Further, the distance from the vehicle position to the designated waypoint (5.7 km in FIG. 5) is displayed, and the place name in the vicinity of the designated waypoint (in FIG. 5, “Kawaguchi City Kitazonocho”) is displayed.

Furthermore, the map including the designated waypoint is displayed at the same scale as the map displayed during the route guidance shown in FIG.
This is because the scale is the same before and after the map switching, so that the distance (length) sensation and area sensation that the user knows during route guidance before the map switching can This is to make it feel the same way. In other words, the distance between two points, the site area of a specific location, the size of the building on the detailed screen, and the like can be easily grasped on the map.
In addition, the map currently displayed is a city map that is a detailed map with a large scale, and the map after switching is a map of the suburbs, mountainous areas, etc., there is no map of the same scale, and the scale is smaller When only the map exists, the display may be performed using a map with a scale closest to the scale of the map before switching.
Further, the scale after the switching of the maps can be configured to be set in advance according to the user's preference. In this case, it is also possible to configure so that the display scale is set differently in an urban area where detailed map data is provided and a suburb where detailed map data is not provided.

  Furthermore, the map including the designated waypoint is displayed in the same display mode as the map displayed during the route guidance shown in FIG. In other words, if the map that is being routed is displayed in heading-up mode, after switching the display to the map that includes the designated waypoint, the heading-up mode (displays the direction of travel of the vehicle on the upper side of the map) is also displayed. If the map is being displayed and displayed in north-up mode (north direction is displayed on the upper side of the map), the map is displayed in north-up mode even after switching to a map that includes the designated waypoint. It will be. In addition, if the map during route guidance is displayed in the plan view mode, it is displayed in the plan view mode after switching to the map including the designated waypoint, and the map during route guidance is displayed in the bird's eye view mode. In such a case, the display is performed in the bird's eye view mode even after the display is switched to the map including the designated waypoint. If there are display modes other than the heading-up mode, north-up mode, plan view mode, or bird's-eye view mode, these display modes will also be maintained after the display is switched to the map that includes the designated waypoint. What is necessary is just to comprise.

This is to eliminate recognition errors in the display contents (directions, etc.) of the user's map due to the switching of the display mode before and after the switching of the map without the user's awareness, and to eliminate the uncomfortable feeling associated with the switching. is there.
In addition, the map including the designated waypoint has a configuration that displays the approach direction of the vehicle to the designated waypoint. Specifically, a broken line LD connecting the current position of the vehicle and the designated waypoint is displayed in the map in order to display the approach direction of the vehicle to the designated waypoint. The example in FIG. 5 is for the case where the current position of the vehicle and the designated waypoint are included on the same map, but the current position of the vehicle is not displayed on the map including the designated waypoint. Even in this case, a broken line LD is displayed, and the approach direction can be roughly grasped.

As a result, when the designated stopover is approaching, traffic congestion information near the designated stopover is sent via FM multiplex broadcasting like VICS, beacons installed beside the road, or on-vehicle mobile phone (not shown). When acquiring traffic congestion information from a traffic information distribution server via a communication network and displaying the acquired traffic congestion information on a map that includes a designated waypoint, determine the presence or absence of traffic congestion in the direction of entry of your vehicle, It is possible to take measures such as considering a detour route.
As described above, according to the present embodiment, it is possible to specify the waypoint and specify the waypoint, such as when the location of facilities near the waypoint and the traffic information near the waypoint are acquired and displayed. When switching to a map including the ground, it can be performed with a single button operation, improving usability.

[2] Modified Example [2.1] First Modified Example In the above description, one map position switching button 35 is displayed as an operation button for designating a specified waypoint on the map display screen during route guidance. This map position switch button 35 is designated by specifying a preset designated stop point (for example, a stop point corresponding to the destination or a route point scheduled to pass next). Although this was for switching to a route map, this first variation is a variation when a map is switched using one of them as a designated route when there are a plurality of waypoints. It is.
In the following description, the description is used about the same part as 1st Embodiment.

FIG. 6 is a processing flowchart of a designated via map display subroutine of the first modification.
FIG. 7 is a schematic diagram for explaining the operation of the first modification.
Also in the first modification, the control unit 21 determines whether or not the map position switching button 35A (see FIG. 7) has been operated in the route guidance processing according to the route guidance processing flowchart shown in FIG. The designated via map display subroutine to be processed is processed by interrupt processing.
That is, the control unit 21 determines whether or not the operation of the map position switching button 35A is performed when the interrupt timing of the designated route map display subroutine is reached (step S31).
If it is determined in step S31 that the map position switching button 35A has not been operated (step S31; No), the process again proceeds to the route guidance process flowchart shown in FIG. Therefore, the control unit 21 continues the route guidance while maintaining the display of the map currently displayed on the display screen 31 of the display unit 17.

If it is determined in step S31 that the map position switching button 35A is operated, the control unit 21 determines whether or not the map position switching button 35A is pressed long (for example, 2 seconds) (step S32). .
If it is determined in step S32 that the map position switching button 35A has not been pressed for a long time (step S32; No), the control unit 21 sets the map display point corresponding to the operation of the map position switching button 35 as the destination. The corresponding last waypoint is specified as the designated placepoint (step S35).
And the control part 21 switches and displays the map in route guidance to the map containing designation | designated waypoints similarly to step S23 of 1st Embodiment (step S36).

On the other hand, if it is determined in step S32 that the map position switching button 35A has been pressed for a long time (step S32; Yes), the map position is displayed in the map position switching button display area 61 as shown in FIG. A plurality of map position switching buttons 35A to 35E including the map position switching button 35A displayed before the long press operation of the switching button 35A is displayed (step S33).
Specifically, in the case of the example of FIG. 7B, the map position switching button 35A is a button that uses the destination that is the last waypoint as the designated waypoint, and the map position switching buttons 35B to 35E are respectively This is a button for setting the first to fourth waypoints as designated waypoints.

In this case, in the initial stage where no waypoints have yet passed, the map position switching button is displayed so that all the waypoints (or a predetermined number of waypoints can be selected step by step) can be selected. However, it is also possible to configure the waypoints that have already passed through to be excluded from the display target.
The time during which the plurality of map position switching buttons 35A to 35E including the map position switching button 35A is displayed may be a predetermined time after the long press of the map position switching button 35A is detected. In addition to displaying for a predetermined time after detecting the long press of the button 35A, it may be configured to display during a period in which it is detected that a finger touches the touch panel 15b.

Next, the control unit 21 determines whether or not any one of the map position switching buttons 35A to 35E has been operated (step S34).
In the determination of step S34, if any of the map position switching buttons 35A to 35E is not operated, the standby state is entered. Note that when the standby time exceeds a predetermined standby time, the processing may be forcibly returned to the processing routine of FIG.

On the other hand, in the determination of step S34, when any one of the map position switching buttons 35A to 35E is operated, the control unit 21 operates the operated map position switching button 35i (i = A to The waypoint corresponding to the operation of E) is specified as the designated waypoint (step S35).
And the control part 21 switches and displays the map in route guidance to the map containing designation | designated waypoints similarly to step S23 of 1st Embodiment (step S36).

  As described above, according to the first modification, when a transit point is designated and displayed on a map including the designated transit point, a desired transit point can be easily selected from a plurality of transit points. It can be specified, improving usability.

[2.2] Second Modification The first modification is a modification in which the other map position switching buttons 35B to 35E are displayed by long-pressing the map position switching button 35A. The second modification is a modification when the function of one map position switching button is switched by another selection button.
FIG. 8 is a schematic diagram for explaining the operation of the second modification.
Also in the second modification, the control unit 21 determines whether or not the operation of the map position switching button 35F (see FIG. 8) has been performed in the route guidance process according to the route guidance process flowchart shown in FIG. The designated via map display subroutine to be processed is processed by interrupt processing.
In addition, on the display screen 31A of the second modified example, map position switching buttons 61U and 61D are displayed above and below the map position switching button 35F. For example, the first to fourth via points other than the destination are used. If there is a place, repeat the pressing of the map position switching button 61U, and the designated waypoint displayed on the map position switching button 35F is the destination → first waypoint → second waypoint → third place → third place When the map position switching button 35F is operated in the order of 4 waypoints → destination → ... and the map position switching button 35F is operated, the map of the designated waypoint displayed on the map position switching button 35F at that time is displayed. Will be displayed.
Similarly, by repeatedly depressing the map position switching button 61D, the designated waypoint displayed on the map position switching button 35F is the destination → the fourth waypoint → the third waypoint → the second waypoint → the first waypoint. If the map position switching button 35F is operated in the order of → destination → ... and the map position switching button 35F is operated, the map being route-guided is switched to the map of the designated waypoint displayed on the map position switching button 35F at that time. Will be displayed.
As described above, according to the second modification, when a transit point is designated and displayed on a map including the designated transit point, a desired transit point can be easily selected from a plurality of transit points. It can be specified, the operation method is easy to understand, and the operability is improved.

[2.3] Third Modification The first modification is a modification in which the other map position switching buttons 35B to 35E are displayed by long pressing the map position switching button 35A. The third modification is a modification in the case where the functions of the two map position switching buttons are switched according to the current map display state.

FIG. 9 is a schematic diagram for explaining the operation of the third modification.
Also in the third modification, the control unit 21 determines whether or not the map position switching button 62U or 62D (see FIG. 9) is operated in the route guidance processing according to the route guidance processing flowchart shown in FIG. The specified via-ground map display subroutine for discriminating is processed by interrupt processing.

In addition, on the display screen 31B of the third modified example, instead of the map position switching button 35 in FIG. 3, map position switching buttons 61U and 61D are displayed up and down. For example, FIG. The designated route point is in a state where a map of the first route point (indicated by the flag V1 in the figure. In FIG. 9A, the vicinity of the rocky wall) is displayed.
In this case, the route guidance to the destination is made in the order of departure point → first route point →... → fourth route point → destination, and in the state shown in FIG. When the switch button 61U is depressed, as shown in FIG. 9B, the designated waypoint becomes the second place (in the vicinity of Utsunomiya in FIG. 9B), and the second place (the flag in the figure) A map of V2) is displayed.

At this time, the map position switching button 61U becomes a button for designating the third waypoint that passes next to the second waypoint as the designated waypoint, and the map position switching button 61D passes before the second placepoint. This is a button for designating the first waypoint as the designated waypoint.
As described above, according to the third modification, the functions of the map position switching buttons 61U and 61D are based on the current map display state (specifically, which map display of the designated waypoint is being performed). When switching to a map that includes a designated waypoint by specifying the waypoint, the desired route point can be specified with a simple operation along the order of the route from a plurality of waypoints that have the order of passage. It is easy to understand the operation method and the operability is improved.

10 Car navigation system (vehicle navigation system)
DESCRIPTION OF SYMBOLS 15 Operation part 15b Touch panel 17 Display part 21 Control part 31, 31A, 31B Display screen 32 Map screen 35, 35A-35E Map position switch button 51 Map screen 61 Map position switch button display area 61D Map position switch button 61U Map position switch button 62U Map position switching button CS Cursor LD Dashed line M Current position NV Guide route

Claims (7)

In an in-vehicle navigation device that displays a guide route that passes through one or more set waypoints on a map of a display device and performs route guidance,
A vehicle-mounted navigation device characterized in that the map during route guidance can be switched to a map including a designated waypoint among the one or more waypoints. The in-vehicle navigation device according to claim 1,
An on-vehicle navigation device characterized in that when changing the scale of a map including the designated waypoint, the scale of the map is changed around the designated waypoint. The in-vehicle navigation device according to claim 1 or 2,
The map that includes the designated waypoint is displayed at the same scale as the map displayed during route guidance, or if it cannot be displayed at the same scale, the scale closest to the map scale displayed during route guidance is displayed. An in-vehicle navigation device characterized by being displayed on the screen. The in-vehicle navigation device according to any one of claims 1 to 3,
Displays the map being routed in either heading-up mode or north-up mode, and in either plan view mode or bird's-eye view mode.
When switching a map including the designated waypoint, the vehicle-mounted navigation device is displayed in the same mode as the map during route guidance. The in-vehicle navigation device according to any one of claims 1 to 4,
An in-vehicle navigation device, wherein an operation button for designating the designated waypoint is displayed on a map display screen during route guidance. The in-vehicle navigation device according to any one of claims 1 to 5,
An in-vehicle navigation device, wherein operation buttons are provided on a display screen of a map during route guidance to call and specify a route point other than the specified route point. The in-vehicle navigation device according to any one of claims 1 to 6,
An in-vehicle navigation device that displays an approach direction of the host vehicle to the designated waypoint on a map including the designated waypoint.

Images