JP2017146131A - Route display control device, control method, program and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a route display control device capable of presenting a user with an easy-to-follow guide route.SOLUTION: A system controller 20 of a navigation device 1 refers to a road link database 32, and generates route information indicating a guide route to a destination. Next, the system controller 20 extracts a lane link associated with a road link on a route by correspondence information 34 from a lane link database 33. Then, the system controller 20 determines a display mode of a route line Lrt on the basis of the lane link extracted from the lane link database 33, and has a display 44 display it.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a route display technique.

  Conventionally, as a driving support technology, a navigation system that provides guidance information for guiding a vehicle route to a driver of a vehicle by an image or a voice using road map information indicating a road map has been put into practical use. . For example, Patent Document 1 discloses a navigation device that dynamically changes the transparency and thickness of a route line displayed on a map display screen. Specifically, in Patent Document 1, as a first display mode, the second display is a point that prevents the map information from becoming difficult to visually recognize due to the route line by displaying a thin line with low transparency. As an aspect, it is described that a route can be easily grasped from a screen on which a map is displayed by displaying a thick line with high transparency.

JP 2011-203576 A

  In recent years, in order to realize automatic driving, it has been considered to generate guidance information using map data in lane units as map data with higher accuracy than conventional map data in road units. Patent Document 1 does not disclose anything about displaying a guidance route using map data in lane units.

  Examples of the problem to be solved by the present invention include the above. The main object of the present invention is to provide a route display control device capable of presenting a user-friendly guide route.

  The invention described in the claims is a route display control device, and acquires a lane information related to a lane for at least a road included in the route, and a first acquisition unit that acquires route information related to a route along which the mobile body moves. A second acquisition unit; and a control unit configured to display the route on the display unit in a display mode determined based on the lane information acquired by the second acquisition unit.

  The invention described in the claims is a route display control device, wherein an acquisition unit that acquires route information related to a route along which the moving body moves and a route that the moving body should go straight out of the routes are first. And a control unit that displays the route on a map in a second display mode around a point where the mobile body should turn right or left in the first display mode.

  The invention described in the claims is a control method executed by the route display control device, wherein the first acquisition step of acquiring route information related to a route along which the moving body moves, and at least the roads included in the route A second acquisition step of acquiring lane information related to a lane, and a control step of displaying the route on a display unit in a display mode determined based on the lane information acquired in the second acquisition step. To do.

  The invention described in the claims is a program executed by a computer, wherein the first acquisition unit acquires route information related to a route along which the moving body moves, and lane information related to a lane for at least a road included in the route. The computer is caused to function as a control unit that causes the display unit to display the route in a display mode determined based on the lane information acquired by the second acquisition unit and the lane information acquired by the second acquisition unit.

1 shows a schematic configuration of a navigation device. It is the figure which visualized the road link and the lane link on the map which displayed the road containing an intersection. It is a display example of the guidance screen corresponding to the example of FIG. It is a flowchart which shows the procedure of the display process of a guidance screen. It is the example of a display which specified the priority set with respect to each lane link linked | related with the road link on a route. The example of a display at the time of changing the shade of a route line according to a priority is shown. The structure of the navigation system which concerns on a modification is shown.

  In a preferred embodiment of the present invention, the route display control device acquires a lane information related to a lane for a road included in at least a first acquisition unit that acquires route information related to a route along which the mobile body moves. And a control unit that displays the route on the display unit in a display mode determined based on the lane information acquired by the second acquisition unit.

  The route display control device includes a first acquisition unit, a second acquisition unit, and a control unit. The first acquisition unit acquires route information regarding a route along which the moving body moves. A 2nd acquisition part acquires the lane information regarding the lane about the road contained at least in a path | route. The control unit displays the route on the display unit in the display mode determined based on the lane information acquired by the second acquisition unit. According to this aspect, the route display control device can cause the driver to visually recognize the route along which the mobile body moves in the display manner determined based on the lane information corresponding to each lane of the road included in the route.

  In one aspect of the route display control device, the route display control device further includes an extraction unit that extracts a restriction route indicating a route in which lane change of the moving body included in the route is to be restricted, and the control unit includes: Among the routes, the route is displayed on the display unit in a display mode different from the route other than the restricted route. According to this aspect, the route display control device can cause the driver to visually recognize the presence of the restricted route on the route.

  In another aspect of the route display control device, the control unit sets a priority for each lane section along the route based on the route information and the lane information, and according to the priority, The display mode of the route is varied for each lane section. Here, the “lane section” represents a section in lane units. According to this aspect, the route display control device can cause the driver to appropriately recognize the priority to be traveled for each lane section, and can smoothly travel along the route.

  In another aspect of the route display control device, the extraction unit is prohibited from changing lanes, and travels in a traveling direction different from the direction along the route, and the lane change prohibited zone. And a second lane section that is on the same lane and within a predetermined distance from the first lane section is excluded from at least the route. According to this aspect, the route display control device can suitably display a route excluding a lane section that is difficult to travel along the route.

  In the other one aspect | mode of the said route display control apparatus, the said extraction part lengthens the said predetermined distance, so that the frequency | count of a lane change required until it arrives at the lane which advances in the direction along the said route is large. According to this aspect, the route display control device can suitably determine a section to be excluded from the route in consideration of the travel distance necessary for changing the lane.

  In another aspect of the route display control device, the control unit displays an arrow for each lane section corresponding to each of the lane information acquired by the second acquisition unit on the map displayed on the display unit. When displaying, the arrow corresponding to the lane section difficult to travel along the route is displayed in a display mode different from the arrow corresponding to the route other than the lane section, or the arrow corresponding to the lane section Hide. Thereby, the route display control apparatus can make a driver | operator grasp the lane section which should drive | work also by the display of the arrow attached | subjected for every lane section.

  In another preferred embodiment of the present invention, the route display control device includes: an acquisition unit that obtains route information related to a route along which the moving body moves; and a first of the routes that the moving body should go straight on. And a control unit that displays the route on a map in a second display mode around the point where the mobile body should turn right or left. According to this aspect, the route display control device can suitably display route guidance in lane units.

  In another preferred embodiment of the present invention, a control method executed by the route display control device is a first acquisition step of acquiring route information related to a route along which the mobile body moves, and at least a road included in the route A second acquisition step of acquiring lane information related to the lane of the vehicle, and a control step of displaying the route on the display unit in a display mode determined based on the lane information acquired in the second acquisition step. By executing this control method, the route display control device causes the driver to visually recognize the route on which the moving body moves in the display mode determined based on the lane information corresponding to each lane of the road included in the route. Can do.

In another preferred embodiment of the present invention, a computer-executed program, a first acquisition unit that acquires route information related to a route traveled by a mobile body, and a lane related to a lane for at least a road included in the route The computer is caused to function as a second acquisition unit that acquires information and a control unit that displays the route on the display unit in a display mode determined based on the lane information acquired by the second acquisition unit. By executing this program, the computer can cause the driver to visually recognize the route on which the moving body moves in the display mode determined based on the lane information corresponding to each lane of the road included in the route. Preferably, the program is recorded on a recording medium.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

<First embodiment>
[Configuration of navigation device]
FIG. 1 shows a schematic configuration of a navigation device 1 according to the first embodiment.

  As shown in FIG. 1, the navigation device 1 includes a self-supporting positioning device 10, a GPS receiver 18, a system controller 20, a data storage unit 31, a communication device 38, a display unit 40, an audio output unit 50, and an input device 60.

  The autonomous positioning device 10 includes an acceleration sensor 11, an angular velocity sensor 12, and a distance sensor 13. The acceleration sensor 11 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data. The angular velocity sensor 12 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative azimuth data. The distance sensor 13 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.

  The GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites. The positioning data is used to detect the absolute position of the vehicle from latitude and longitude information.

  The system controller 20 includes an interface 21, a CPU 22, a ROM 23, and a RAM 24, and controls the entire navigation device 1.

  The interface 21 performs an interface operation with the acceleration sensor 11, the angular velocity sensor 12, the distance sensor 13, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20. The CPU 22 controls the entire system controller 20. The ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored. The RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.

  The system controller 20, the data storage unit 31, the display unit 40, the audio output unit 50, and the input device 60 are connected to each other via the bus line 30.

  The data storage unit 31 is configured by a storage medium such as an HDD or an SD card (registered trademark), for example, and stores various data used for navigation processing such as map data and facility data. In the present embodiment, the data storage unit 31 includes a road link DB 32, a lane link DB 33, and correspondence information 34 as part of the map data.

  The road link DB 32 is a database of links (also referred to as “road links”) for each road when the road network is expressed as nodes corresponding to road connecting portions such as intersections and links connecting the nodes. In the road link DB 32, attribute information of a section corresponding to the road link is recorded for each road link. The road link attribute information includes, for example, road link ID, position information (or road node ID) corresponding to the start point and end point, road width, road shape data, and the like. As will be described later, the road link DB 32 is used for processing for determining a route (also referred to as “guidance route”) to a destination to be a guidance target.

  The lane link DB 33 is a database of lane links (also referred to as “lane links”) corresponding to sections obtained by dividing the lanes constituting the road based on a predetermined reference. The lane link DB 33 includes lane link ID, start point and end point position information (or lane node ID), lane number, lane type, lane width, traffic regulation information such as lane change prohibition, lane shape data, and the like. As will be described later, the lane link DB 33 is used for processing for generating guidance information for the determined guidance route. The lane link or its attribute information registered in the lane link DB 33 is an example of “lane information” in the present invention.

  Each lane link may be delimited by the same standard as the road link, or may be delimited by a different standard from the road link. In this embodiment, each lane is represented by a lane link having a predetermined length (for example, 1 m). The system controller 20 may divide the lane link in the initial state registered in the lane link DB 33 into predetermined lengths to newly generate a lane link having a predetermined length and store it in the lane link DB 33. . Thus, by generating guidance information using a lane link shorter than a road link, the system controller 20 can perform more detailed guidance display and voice guidance in route guidance.

  The correspondence information 34 is information for associating the road link registered in the road link DB 32 with the lane link registered in the lane link DB 33. For example, the corresponding information 34 is associated with a corresponding lane link ID for each road link ID.

  The data storage unit 31 further stores a road node database that is a connection point of road links registered in the road link DB 32 and a lane node database that is a connection point of lane links registered in the lane link DB 33. May be.

  The communication device 38 receives road traffic information and other information distributed from a VICS (registered trademark, Vehicle Information Communication System) center. The communication device 38 receives the road link DB 32, the lane link DB 33 and the correspondence information 34 stored in the data storage unit 31 from a server or the like that manages map data based on the control of the system controller 20, and the data storage unit 31. May be stored.

  The display unit 40 displays various display data on a display device such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map data from the data storage unit 31. The display unit 40 displays the map data read from the data storage unit 31 by the system controller 20 on a display screen such as a display. The display unit 40 includes a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 via the bus line 30 and a memory such as a VRAM (Video RAM), and can display image information that can be displayed immediately. A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal display or a CRT (Cathode Ray Tube) based on image data output from the graphic controller 41, and a display 44 are provided. . The display 44 is composed of, for example, a liquid crystal display device having a diagonal of about 5 to 10 inches, and is mounted near the front panel in the vehicle.

  The audio output unit 50 is output from the D / A converter 51 that performs D / A conversion of audio digital data sent from the RAM 24 or the like via the bus line 30 under the control of the system controller 20, and the D / A converter 51. An amplifier (AMP) 52 that amplifies the audio analog signal to be amplified, and a speaker 53 that converts the amplified audio analog signal into sound and outputs the sound into the vehicle.

  The input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data. The input device 60 is disposed around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle. When the display 44 is a touch panel system, the touch panel provided on the display screen of the display 44 also functions as the input device 60.

  When the input device 60 or the like detects an input of a route search request specifying a destination or the like, the system controller 20 searches for a route from the current position to the destination by referring to the road link DB 32 and determines a guidance route. . Thereafter, the system controller 20 refers to the correspondence information 34 and extracts a lane link corresponding to a road link (also referred to as a “route road link”) constituting the guide route from the lane link DB 33. Then, the system controller 20 generates guidance information for the determined guidance route based on the extracted lane link, and outputs it by the display unit 40 or the voice output unit 50. In this embodiment, the system controller 20 causes the display 44 to display a guidance screen in which a line indicating a guidance route (also referred to as a “route line Lrt”) or the like is superimposed on a map around the current position.

  The CPU 22 of the system controller 20 executes a program stored in advance in the ROM 23 or the like, thereby obtaining an “acquisition unit”, “first acquisition unit”, “second acquisition unit”, “extraction unit”, It functions as a “control unit” and a “computer” that executes the program of the present invention.

[Guidance screen display]
Next, the guidance screen that the system controller 20 displays on the display 44 at the time of route guidance will be described. Schematically, the system controller 20 extracts the lane link associated with the route road link by the correspondence information 34 from the lane link DB 33, and displays the route line Lrt tracing the section corresponding to the extracted lane link. At this time, the system controller 20 lanes on the guide route (which is also referred to as “travel-prohibited zone”) that cannot substantially travel along the guide route for legal or safety reasons based on legal restrictions such as prohibition of lane change. The route line Lrt is not displayed in the lane link section corresponding to. Thereby, the system controller 20 makes a driver | operator suitably visually recognize the path | route which should be drive | worked for every lane.

(1) Identification of travel-prohibited section First, a method for identifying a travel-prohibited section will be described with reference to FIG. FIG. 2 is a diagram in which road links and lane links are visualized on a map displaying roads including intersections. In FIG. 2, road links “Ra”, “Rb”, and “Rc” indicate road links on the route. A plurality of lane links “La” indicated by solid arrows indicate lane links associated with road links on the route on the correspondence information 34, and a plurality of lane links “Lb” indicated by broken arrows correspond to road links on the route. The lane link “Lc” indicated by an arrow marked with “x” indicates a lane link corresponding to the travel-prohibited section. Note that the lane link Lb corresponding to the lane in the direction opposite to the guide route is not shown in order to prevent the display from becoming complicated. The area within the broken line frame 70 indicates a section in which lane change is prohibited by law (also referred to as “lane change prohibited section”).

  In this case, the system controller 20 refers to the traffic regulation information included in the attribute information of each lane link, and recognizes that the lane section in the broken line frame 70 is a lane change prohibition section. The system controller 20 then determines a lane (that is, a center lane and a right lane) that is different from a lane that can travel along the guide route (that is, the left lane) among the lane sections within the lane change prohibition section indicated by the broken line frame 70. Is considered as a prohibited travel zone. As described above, the system controller 20 regards a lane in which a lane change to a lane for traveling along the guide route is legally restricted as a travel prohibited section. In this case, the section of the center lane and the right lane in the broken line frame 70 is an example of the “first lane section” in the present invention.

  Further, the system controller 20 also performs a section (refer to a broken line frame 71) within a predetermined distance (also referred to as “threshold distance Lth”) within a lane change prohibition section on a lane that cannot travel along the guide route. Therefore, it is determined that the lane change to a lane that can proceed along the guide route is difficult, and is regarded as a travel-prohibited zone. Preferably, the threshold distance Lth is set for each lane, and the longer the number of lane changes necessary to move to a lane that can travel along the guide route (the left lane in FIG. 6), the longer the distance Set to In the example of FIG. 2, the threshold distance Lth for the right lane that requires two lane changes to the left lane that can travel along the guide route is set to the length of two lane links. The threshold distance Lth for the central lane that requires one lane change is set to the length of one lane link. Thereby, the system controller 20 can prevent unnecessarily associating a lane link corresponding to a lane section that cannot travel safely along the guide route with a road link on the route. The threshold distance Lth is an example of the “predetermined distance” in the present invention, and the lane section in the broken line frame 71 is an example of the “second lane section” in the present invention.

  In addition, in the example of FIG. 2, the system controller 20 regards a lane section (see a broken line frame 72) that requires a lane change immediately after a left turn as a travel prohibited section in addition to the lane change prohibited section and the section in front thereof. Thus, preferably, the system controller 20 sets a lane section within the threshold distance Lth from the right / left turn point among the lanes that need to be changed immediately after the right / left turn at the right / left turn point, as the travel-prohibited section. .

  Furthermore, the system controller 20 takes into consideration the distance necessary for the lane change even in the section immediately before the right turn point where the lane change prohibition section corresponding to the road node Nb does not exist, and other than the lane that can travel along the guide route. A section within the threshold distance Lth from the right turn point of the lane (see the broken line frame 73) is set as a travel-prohibited section. In this way, preferably, the system controller 20 preferably changes the lane that needs to be changed within the threshold distance Lth to a lane that can travel along the guide route regardless of the presence or absence of traffic regulation information that prohibits lane change. The section is also regarded as a lane section where traveling along the guide route cannot be performed safely, and is set as a travel prohibited section.

(2) Guide screen display example FIG. 3 is a guide screen display example corresponding to the example of FIG. In the example of FIG. 3, the system controller 20 includes a current position mark 65 indicating the current position, a route road link Ra, Rb, Rc, a lane link La associated with the route road link Ra, Rb, Rc, The lane link Lc corresponding to the travel-prohibited section and the route line Lrt are displayed on a map around the current position.

  Here, the system controller 20 displays the route line Lrt by tracing the section corresponding to each lane link La (that is, the lane section that can travel safely along the route). In the vicinity of the intersection corresponding to both ends of the road link Rb, the route line Lrt is displayed thin due to the presence of the travel-prohibited section, and the route line Lrt is displayed thick because there are many lanes that can travel in the section away from the intersection. Has been. As described above, the system controller 20 changes the display mode of the route line Lrt between the route that the vehicle should make a straight line and the vicinity of the point that the vehicle should turn right or left. Here, the section of the route in which the route line Lrt is displayed relatively thin due to the presence of the travel-prohibited section around the point where the vehicle should turn right or left is an example of the “restricted route” in the present invention. .

  According to the guidance screen shown in FIG. 3, the driver preferably recognizes an area where the vehicle can travel along the route by referring to the arrow indicating the lane link La and the route line Lrt displayed on the map. be able to.

  Further, in the display example of the guidance screen of FIG. 3, the system controller 20 clearly indicates the lane link Lc with an “x” mark attached to the arrow for the travel prohibited section. Thereby, it can be made to recognize suitably that a driver should not enter into a run prohibition section. Note that the system controller 20 is not limited to a mode in which the lane link Lc is displayed by an arrow with a cross, but may be any display mode different from the lane link La. Further, the system controller 20 may hide the lane link Lb while displaying the lane link La with an arrow. Further, the system controller 20 may display only the route line Lrt without displaying the arrow of the route road link and the lane link on the map. Also according to these display modes, the system controller 20 can make the driver appropriately recognize the lane section to be traveled.

(3) Process Flow FIG. 4 is a flowchart showing the procedure of the guide screen display process executed by the system controller 20 in this embodiment.

  First, the system controller 20 determines whether there is a route search request specifying a destination or the like (step S101). Then, when there is a route search request (step S101; Yes), the system controller 20 performs a route search using the road link registered in the road link DB 32 and determines a guide route (step S102). Next, the system controller 20 extracts the road links on the route corresponding to the guide route from the road link DB 32, and extracts the lane links associated with the extracted road links on the route in the correspondence information 34 from the lane link DB 33. (Step S103).

  Next, the system controller 20 identifies a travel-prohibited section that is difficult to travel along the guide route (step S104). Specifically, the system controller 20 changes the lane on a lane that is different from a lane that can travel along the guide route in a lane section in the lane change prohibited section, or on a lane that cannot travel along the guide route. A section where the distance to the prohibited section is within the threshold distance Lth and a section of the lane that needs to be changed to the lane that can travel along the guide route within the threshold distance Lth are specified as the prohibited travel section.

  Then, the system controller 20 displays the route line Lrt along the lane link excluding the lane link corresponding to the travel prohibited section identified in step S104 among the lane links extracted in step S103 on the map around the current position. (Step S105). In this case, first, the system controller 20 specifies the lane link where the own vehicle position exists based on the own vehicle position recognized based on the outputs of the autonomous positioning device 10 and the GPS receiver 18 and the attribute information of the lane link. . And the system controller 20 displays the route line Lrt etc. which show a guidance route while displaying the own vehicle position on the map displayed on the display unit 40. Similarly to general route guidance, the system controller 20 outputs a direction or the like to be advanced by the audio output unit 50 when the next right or left turn point is approached within a predetermined distance.

  As described above, the system controller 20 of the navigation device 1 according to the first embodiment refers to the road link DB 32 and generates route information indicating a guide route to the destination. Then, the system controller 20 extracts the lane link associated with the route road link by the correspondence information 34 from the lane link DB 33. Then, the system controller 20 determines the display mode of the route line Lrt based on the lane link extracted from the lane link DB 33 and causes the display 44 to display it. According to this aspect, the navigation apparatus 1 can display a detailed route using the lane link DB 33 and can guide the driver suitably.

<Second embodiment>
In the second embodiment, in addition to the processing of the first embodiment, the system controller 20 gives priority to travel for each lane section corresponding to the lane link associated with the road link on the route on the correspondence information 34 ( “Priority Pr”) is set, and the route line Lrt and the like are displayed according to the priority Pr. Since the configuration and the like of the navigation device 1 are the same as those in the first embodiment, the description thereof is omitted.

  FIG. 5 is a first display example based on the priority Pr set for each lane link associated with the route road link Ra. In the example of FIG. 5, the system controller 20 sets the priority Pr with the maximum value “3” and the minimum value “0” for the lane section of each lane link associated with the route road link Ra. The numerical value of the priority Pr is displayed overlapping the lane section.

  Here, the system controller 20 sets all the priorities Pr to “0” for the lane section of the lane link Lc corresponding to the travel-prohibited section, and displays it on the corresponding lane section. Since there is only one lane outside the prohibited travel zone (that is, the left lane) in the road section within the broken line frame 74, the system controller 20 sets the priority Pr for each lane section in the left lane to the maximum value “ 3 ”and displayed on the corresponding lane section. As a result, the system controller 20 makes the driver more clearly recognize that the left lane should be driven with the highest priority.

  In addition, when there is a lane link La located immediately before entering the travel prohibited section, the system controller 20 sets the priority Pr for the lane section of the lane link La to “1” and gives priority to the other lane sections. The degree Pr is set to “2”. For example, in the road section within the broken line frame 75, the system controller 20 sets the priority Pr for the right lane section corresponding to the travel-prohibited section to “0”, and for the section of the central lane immediately before the travel-prohibited section. The priority Pr is set to “1”. The system controller 20 does not correspond to either the travel-prohibited section or the section immediately before the travel-prohibited section for the left lane section, so the priority Pr is “2” which is higher than the other lane sections. Set to. Thereby, the system controller 20 can make a driver | operator recognize suitably that it should drive | work a left lane preferentially. Similarly, in the road section within the broken line frame 76, the system controller 20 sets the priority Pr for the right lane section immediately before the travel prohibition section to “1”, and immediately before the travel prohibition section or the travel prohibition section. The priority Pr for the section of the central lane and the left lane not corresponding to any of the sections is set to “2”.

  Further, the system controller 20 sets the priority Pr for each lane section to the same “1” in a road section in which all lanes do not correspond to either the travel prohibited section or the section immediately before the travel prohibited section. For example, in the road section within the broken line frame 77, the system controller 20 does not correspond to either the travel prohibition section or the section immediately before the travel prohibition section, so the priority Pr for each lane section is the same. “1” is set.

  As described above, the system controller 20 sets the priority Pr for the lane section of each lane link associated with the route road link Ra, and displays the numerical value of the priority Pr over the lane section. The driver can clearly see which lane should be preferentially traveled.

  FIG. 6 shows a second display example based on the priority Pr set for each lane link associated with the route road link Ra. In the second display example, the system controller 20 changes the shade of the route line Lrt according to the priority Pr instead of displaying the numerical value of the priority Pr superimposed on the route line Lrt.

  In this case, the system controller 20 displays the route line Lrt overlapping the section darker as the section with the higher priority Pr. Specifically, the system controller 20 displays the route line Lrt on the section corresponding to “3” having the highest priority Pr darkest, and the route line Lrt becomes lighter (ie, more transparent as the priority Pr becomes lower). Is displayed). Then, the system controller 20 hides the route line Lrt with the thinnest setting (that is, transparency 100%) for the section corresponding to “0” having the lowest priority Pr (that is, the travel prohibition section). .

  As described above, the system controller 20 preferably selects the lane section recommended for traveling along the guide route by changing the shading of the route line Lrt for each section according to the priority Pr. Can be recognized.

<Modification>
Next, modified examples suitable for the above-described embodiments will be described. The following modifications may be applied in any combination to the above-described embodiments.

[Modification 1]
A part of the processing executed by the navigation device 1 in the first and second embodiments may be executed by a server device that can communicate with the navigation device 1.

  FIG. 7 shows a configuration of a navigation system according to a modification. In the example of FIG. 7, the navigation apparatus 1 can perform data communication with the server apparatus 2 via a network. When the server device 2 has a road link DB 32, a lane link DB 33, and correspondence information 34 instead of the navigation device 1, and receives a route search request designating the current position and destination from the navigation device 1, The route is searched based on the route search request, and the guide route is determined. Then, the server device 2 transmits the determined guidance route information, the route guidance information to be output by the navigation device 1, and the like to the navigation device 1.

  In this navigation system, when a route search request is received from the navigation device 1, the server device 2 performs a route search and obtains information on the determined guide route and information on road links and lane links necessary for displaying the guidance screen. To the navigation device 1. Then, the navigation device 1 specifies a travel-prohibited section based on the information received from the server device 2, and generates and displays a guidance screen as shown in FIGS. Thus, also by the navigation system shown in FIG. 7, the navigation device 1 can make the driver preferably recognize the route to be traveled by the route line Lrt.

[Modification 2]
In the second embodiment, instead of or in addition to changing the shading of the route line Lrt according to the priority Pr, the system controller 20 at least one of the color and brightness of the route line Lrt according to the priority Pr. May be changed. Even in this case, the system controller 20 displays the display mode in which the route line Lrt on the corresponding section is more conspicuous, that is, the dark color or / and the higher luminance as the priority Pr is higher. Also according to this modified example, the navigation device 1 can make the driver recognize the lane section recommended for traveling along the guide route.

[Modification 3]
In the guidance screen of FIG. 3 and the like, the system controller 20 may display the route line Lrt in a manner distinguishable from other guidance route sections, instead of hiding the route line Lrt on the travel prohibited section. For example, the system controller 20 may display the route line Lrt in an inconspicuous manner by setting the route line Lrt to have a lower brightness than the other guide route sections on the travel prohibited section.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Server apparatus 10 Self-supporting positioning apparatus 18 GPS receiver 20 System controller 22 CPU
31 Data storage unit 38 Communication device 40 Display unit 44 Display 60 Input device

Claims (10)

A first acquisition unit that acquires route information relating to a route along which the moving body moves;
A second acquisition unit that acquires lane information relating to a lane for at least a road included in the route;
In a display mode determined based on the lane information acquired by the second acquisition unit, a control unit that displays the route on the display unit;
A route display control device comprising: An extraction unit that extracts a restriction route indicating a route that should restrict lane change of the moving body included in the route;
The route display control device according to claim 1, wherein the control unit causes the display unit to display the route in a display mode in which the restricted route is different from a route other than the restricted route.   The control unit sets a priority for each lane section along the route based on the route information and the lane information, and the display mode of the route is different for each lane section according to the priority. The route display control device according to claim 1 or 2.   The extraction unit is in a first lane forbidden to change lanes and travels in a traveling direction different from the direction along the route, and on the same lane as the lane change forbidden section. The route display control device according to any one of claims 1 to 3, wherein at least a second lane section within a predetermined distance from the section is excluded from the route.   5. The route display control device according to claim 4, wherein the extraction unit increases the predetermined distance as the number of lane changes necessary to reach a lane traveling in a direction along the route increases.   When the control unit displays an arrow for each lane section corresponding to each of the lane information acquired by the second acquisition unit on the map displayed on the display unit, it is difficult to travel along the route. The arrow corresponding to a lane section is displayed in a display mode different from the arrow corresponding to a route other than the lane section, or the arrow corresponding to the lane section is not displayed. The route display control device according to claim 1. An acquisition unit that acquires route information about a route along which the moving body moves;
Of the routes, the route on the map is displayed in the first display mode for the route on which the mobile body should go straight and in the second display mode around the point where the mobile body should turn right or left. A control unit;
A route display control device comprising: A control method executed by the route display control device,
A first acquisition step of acquiring route information relating to a route along which the moving body moves;
A second acquisition step of acquiring lane information relating to a lane for at least a road included in the route;
In a display mode determined based on the lane information acquired in the second acquisition step, a control step of displaying the route on a display unit;
A control method characterized by comprising: A program executed by a computer,
A first acquisition unit that acquires route information relating to a route along which the moving body moves;
A second acquisition unit that acquires lane information relating to a lane for at least a road included in the route;
A program that causes the computer to function as a control unit that causes the display unit to display the route in a display mode determined based on the lane information acquired by the second acquisition unit.   A recording medium in which the program according to claim 9 is recorded.