WO2007145190A1 - ナビゲーション装置及びナビゲーション方法 - Google Patents
ナビゲーション装置及びナビゲーション方法 Download PDFInfo
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- WO2007145190A1 WO2007145190A1 PCT/JP2007/061776 JP2007061776W WO2007145190A1 WO 2007145190 A1 WO2007145190 A1 WO 2007145190A1 JP 2007061776 W JP2007061776 W JP 2007061776W WO 2007145190 A1 WO2007145190 A1 WO 2007145190A1
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- Prior art keywords
- intersection
- guide
- guidance
- target intersection
- guidance target
- Prior art date
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- 238000001514 detection method Methods 0.000 claims abstract description 24
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- 230000003111 delayed effect Effects 0.000 claims description 6
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- 238000010586 diagram Methods 0.000 description 27
- 238000003384 imaging method Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- YREOLPGEVLLKMB-UHFFFAOYSA-N 3-methylpyridin-1-ium-2-amine bromide hydrate Chemical compound O.[Br-].Cc1ccc[nH+]c1N YREOLPGEVLLKMB-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/0969—Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/3647—Guidance involving output of stored or live camera images or video streams
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/365—Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/3655—Timing of guidance instructions
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/10—Map spot or coordinate position indicators; Map reading aids
- G09B29/106—Map spot or coordinate position indicators; Map reading aids using electronic means
Definitions
- the present invention relates to a navigation device that provides route guidance using an image obtained by projecting a visual field space in the course of a vehicle or an actual scenery seen through a windshield.
- a route search from a current vehicle position is performed for a destination set by a user, and route guidance is performed for intersections existing on the route using accumulated map data
- Navigation devices are widely used.
- HDD Hard Disk Drive
- DVD Digital Versatile Disc
- 3D bird's-eye view display and driver's view using realistic 3D CG various map representations that pursue the ease of sharing and realism of guidance display are possible.
- a photographing means such as a video camera and the user approaches an intersection on the route (hereinafter referred to as a “guide target intersection”)
- the course of the vehicle at the intersection is determined.
- a display method or the like has been proposed in which a guide graphic (for example, an arrow graphic) or the like is superimposed on the above-described guidance display screen as the route information to be displayed to provide more accurate and easy-to-understand route guidance (for example, see Patent Document 1).
- a windshield display or head-up display as a display device, and to display the guide figure superimposed on the actual scenery seen through the windshield display.
- Patent Document 1 JP-A-7-63572
- the present invention provides a navigation device and the like that can prevent a user from erroneously recognizing an intersection to be turned even when there is an intersection close to the guidance target intersection. With the goal.
- a navigation device is a navigation device that guides a route to a destination, and generates a map information acquisition unit that acquires map information and a guide graphic along a road corresponding to the guide route.
- a guide figure determination unit, and a proximity intersection detection unit that calculates an interval between a guidance target intersection that is a display target intersection of the guide figure and an intersection in the vicinity of the guidance target intersection using the acquired map information; When the calculated intersection interval is smaller, the timing to start displaying the guide graphic corresponding to the guidance target intersection is determined to be delayed, and the visual field space in the course direction is projected at the determined timing.
- a guide display control unit for displaying the guide graphic on the windshield.
- the guidance target intersection refers to an intersection that is the target of guidance for turning left and right in route guidance.
- the guidance display control unit sets the timing to start displaying the guide graphic corresponding to the guidance target intersection as the intersection interval is smaller.
- the guidance display control unit when there is another intersection within a predetermined distance before and after the guidance target intersection, relatively compares the timing for instructing the route at the guidance target intersection with the guidance target intersection. It may be set when approaching. For example, if there are no other intersections within the prescribed distance of the guidance target intersection, two The route at the guidance target intersection is instructed from 00m, and if there is another intersection within the prescribed distance of the guidance target intersection, the route at the guidance target intersection is instructed from 100m before the guidance target intersection.
- the guidance display control unit controls the timing for instructing the route at the guidance target intersection depending on whether the intersection within a predetermined distance from the guidance target intersection is before or after the guidance target intersection. Moyo.
- the timing for instructing the route at the guidance target intersection is set to be closer to the guidance target intersection. . This is because it is more visible that the intersection in front is visible with the naked eye, and that there is another intersection on the near side of the guidance target intersection, it is more likely that misrecognition will occur.
- the guidance display control unit is based on the distance from the nearest intersection to the own vehicle position among the guidance target intersection and the intersection within a predetermined distance from the guidance target intersection. You may set the timing which instruct
- the guidance display control unit may set the timing for instructing the course at the guidance target intersection based on the importance of the road intersecting the traveling road at the intersection.
- a road that intersects with a traveling road is erroneously recognized as a guide route.
- a narrow road such as a narrow street that has a low possibility of being turned off, it is possible to indicate the route at the guidance target intersection earlier and to allow the user to recognize the intersection to be turned at an early stage.
- the navigation device further includes a map DB that stores map information related to a navigation target area, and the map information acquisition unit further registers the acquired map information in the map DB. It is good also as updating a part or all of the map information previously stored in the said map DB using the said map information acquired.
- the guidance display control unit may switch the guidance display from guidance using a map image to guidance using a live-action image at the timing of instructing a route at a guidance target intersection.
- the present invention can also be realized as a navigation method using the above-described characteristic configuration means of the navigation device as a step. Further, it can be realized as a program for causing a computer to execute the steps in the above method. Needless to say, the program can be widely distributed via a recording medium such as a DVD or a transmission medium such as the Internet.
- the present invention provides a guide figure at the guidance target intersection according to the distance from the intersection close to the guidance target intersection. By controlling the timing for instructing the course, it is possible to allow the user to recognize an intersection that should be turned at the earliest possible stage without misrecognizing it as another intersection.
- FIG. 1 is a diagram for explaining a conventional problem.
- FIG. 2 is a block diagram showing a functional configuration of the navigation device according to the present invention.
- FIG. 3 (a) is a diagram showing an example of node data in map information stored in the map DB.
- Fig. 3 (b) is a diagram showing an example of interpolation node data in the map information stored in the map DB.
- Fig. 3 (c) shows an example of link data in the map information stored in the map DB.
- FIG. 4 is a diagram showing an example of a road and intersection network formed by node data, interpolation node data, and link data stored in the map DB.
- FIG. 5 is a flowchart showing a flow of a method for setting the shape and position of a guide figure.
- FIG. 6 is a diagram showing a method of setting a camera visual field space in a three-dimensional map space.
- FIG. 7 is a diagram showing roads detected by road detection processing.
- FIG. 8 is a diagram showing an example in which guide figures are arranged in a 3D map space.
- FIG. 9 is a diagram showing an example of the shape of the guide figure in the right / left turn guide non-display mode along the road traveling straight ahead.
- FIG. 9 (b) is a diagram showing an example of the shape of the guide figure corresponding to the guidance target intersection in the right / left turn guide display mode.
- FIG. 10 is a diagram showing an example of a plurality of intersections including a guidance target intersection according to the present embodiment.
- FIG. 11 is a diagram showing an example of the shape of the guide figure in the right / left turn guide non-display mode.
- FIG. 12 (a) is a diagram showing an example of a live-action image at a point away from the guidance target intersection (when the distance exceeds D3).
- FIG. 12 (b) is a diagram showing an example of a live-action image in which a left / right turn direction guide is superimposed and displayed at a point approaching the guidance target intersection (when the distance is D3 or less).
- FIG. 13 is a flowchart showing an operation flow of the navigation device according to the present invention.
- Figure 14 (a) is a diagram showing an example of road arrangement when the nearest intersection is the nearest intersection among the guidance target intersection and the neighboring intersection.
- Fig. 14 (b) is a diagram showing an example of the arrangement of roads when the closest intersection between the guidance target intersection and the adjacent intersection is the guidance target intersection.
- FIG. 15 (a) is a diagram showing a display example of a guide figure in the case where there is a nearby intersection in front of the guidance target intersection.
- Fig. 15 (b) is a diagram showing a display example of the guide figure when the guidance target intersection is closest to the front.
- Figure 16 shows that roads with lower importance than the roads that are running It is a figure which shows the example of a display of the guide figure in the case of being in this side.
- FIG. 17 is a diagram showing an example of guidance display when an arrow graphic is superimposed on the guidance target intersection.
- FIG. 2 is a block diagram showing a functional configuration of the navigation device 100 according to the present invention.
- the navigation device 100 is a live-action image taken in front of a vehicle (also referred to as “own vehicle”) in which the navigation device 100 is mounted (in this case, “image” is “moving image”, that is, “video”). And the like, and includes an image acquisition unit 1, a positioning unit 2, a map DB 3, an operation input unit 4, a display unit 5, and a control unit 6.
- the image acquisition unit 1 projects an image obtained by projecting the field of view in the direction of the vehicle (for example, on a camera As well as the direction of the image to be acquired when viewed from the driver's seat. In this case, for example, a real image is acquired by a digital camera. Furthermore, the image acquisition unit 1 may generate a three-dimensional map image by projecting the visual field space in the course direction of the own vehicle based on the three-dimensional map information.
- the positioning unit 2 is a positioning sensor or a positioning system typified by GPS (Global Positioning System) and a gyro, etc., and stores vehicle position information indicating the position of the vehicle (for example, latitude, longitude, and altitude). get.
- GPS Global Positioning System
- gyro gyro
- Map DB3 is a database equipped with HDD and DVD, for example, and stores map information such as 3D map data related to roads and intersections in areas subject to route guidance (eg, nationwide) To do.
- the map DB 3 further has map information acquisition means including communication means (for example, communication function of a mobile phone) (none of which is shown), and is stored in a website on a network such as the Internet.
- the map DB3 can register the acquired map information in the HDD, etc., and can update part or all of the map information stored in advance in the HDD etc. using the acquired map information. To do.
- FIGS. 3A to 3C are diagrams showing an example of data related to the present embodiment in the map information stored in the map DB3.
- the data stored in the map DB3 includes the node data shown in Fig. 3 (a), the interpolated node data shown in Fig. 3 (b), and the link data shown in Fig. 3 (c).
- the node data in Fig. 3 (a) is data related to points where roads branch, such as intersections and junctions, and for each node ID, the latitude and longitude, the number of links connected to the node (connection link) Number) and the ID of each link (connection link ID), etc., and the value of each attribute.
- the interpolated node data in Fig. 3 (b) is data that represents the bending point that exists on the link described later, and represents the shape of the link, such as when the link is not linear. This interpolated node data is composed of attributes such as latitude and longitude, link ID where the vehicle exists, and the value of each attribute for each node ID.
- the link data in Fig. 3 (c) is data representing a road connecting two nodes.
- the start point node that is the end point of the link For each link ID, the start point node that is the end point of the link, the end point node that is the end point of the link, the length of the link (link length: units such as meters and kilometers), the number of interpolation nodes described above, It consists of attributes such as type, road width and interpolation node ID, and values of each attribute.
- Figure 4 shows an example of a road and intersection network represented by the data shown in Figure 3 above.
- Figure 4 [Nodes shown, (Node 12, Nodel5)] Each node has three or more links (for example, link L6) connected (ie, connected to another node). Interpolation nodes (for example, interpolation node CN8 and interpolation node CN9) that affect the link shape exist on the link. If the link is a straight road, the interpolation node does not necessarily exist.
- the operation input unit 4 is an input means including, for example, a remote control touch panel, a voice input microphone, and the like, and gives instructions (eg, information about a destination) to the navigation apparatus 100 by a user. Accept.
- the display unit 5 is a display device such as a liquid crystal display, a windshield display, or a head-up display. If the display unit 5 is a windshield display head-up display, it is not necessary to display a live-action image or a three-dimensional map image on the display. This is because the actual scenery can be seen through the windshield. Furthermore, since the movement of the driver's line of sight can be reduced, a safer driving environment can be provided.
- the control unit 6 is a CPU (Central Processing Unit) including, for example, a RAM and a ROM (stores a control program and the like), and includes a route search unit 7, a guide figure determination unit 8, a proximity intersection detection unit 9 and a guidance display control unit 10.
- a CPU Central Processing Unit
- the route search unit 7 includes a route search unit 7, a guide figure determination unit 8, a proximity intersection detection unit 9 and a guidance display control unit 10.
- the route search unit 7 stores the information about the destination input via the operation input unit 4, the own vehicle position information acquired by the positioning unit 2 !, and the map DB3 stored in the map DB3. The route to the destination is searched with reference to the information.
- the guide figure determination unit 8 displays the route searched by the route search unit 7 on the map DB3 in order to superimpose and display the guide figure indicating the course of the vehicle on the photographed image acquired by the image acquisition unit 1.
- Stored 3D map data for example, node data, interpolation node data, link data
- the shape and position of the guide figure to be superimposed on the actual image are determined based on the data.
- the guide figure determination unit 8 is a camera parameter that determines the 3D map data stored in the map DB3, the imaging direction specified by the image acquisition unit 1, and the imaging range. Based on the position, camera angle (horizontal angle, elevation angle), focal length, and image size, the field of view of the camera in the 3D map space is obtained (Sl).
- a 3D map refers to a map that represents the situation of a point specified by position information, for example, by latitude, longitude, and height.
- a point (point F) advanced from the camera position E (viewpoint) by the focal length f in the camera angle direction is determined, and the horizontal axis corresponding to the image size is defined as the X axis
- a 2D map excluding the 3D map power height information may be used to obtain the camera's visual field space in the 2D map space.
- the parameters that determine the imaging direction and imaging range are not limited to those described above. If the imaging direction and imaging range are determined, the force is also converted using other parameters such as the angle of view. It doesn't matter.
- the guide figure determination unit 8 performs a road detection process for detecting a road and its position in the visual field space of the camera in the three-dimensional map space (S2).
- the road detection process in the 3D map space, the overlap between the camera's field of view and the road (ie, the area that appears as a road) is obtained.
- Figure 7 shows the roads detected by the road detection process.
- Figure 7 is a top view of the 3D map space and camera view space.
- the shape of the road and the road width in the vicinity of the host vehicle are extracted based on the node data, the interpolation node data, and the link data described above.
- the road Detected as a road existing in the visual field space of the camera).
- the guide figure determination unit 8 places a guide figure at a position on the road corresponding to the guide route searched for by the route search unit 7 among the roads detected by the road detection process in the three-dimensional map space.
- Fig. 8 shows an example where guide shapes are placed. Note that the shape of the guide figure is not limited to the arrow figure shown in FIG. 8, but it is also possible to use a polygonal line figure by excluding the triangle at the tip from the arrow figure.
- the guide figure determination unit 8 performs projection conversion on the guide figure using the camera screen shown in FIG. 6 as a projection plane (projection processing: S4).
- projection processing: S4 the projection plane onto which the guide figure is projected coincides with the camera screen in the image acquisition unit 1, so the guide figure is displayed on the road (guide Applicable to the route).
- the display unit 5 is a windshield display or a head-up display
- the shape of the guide figure is a mode in which only the guide figure (straight direction guide) along the road traveling straight ahead is displayed in the guide display control unit 10 described later, as shown in FIG. 9 (a).
- (Right / left turn guide non-display mode) and a mode that displays a guide figure (right / left turn direction guide) indicating the course at the guidance target intersection in addition to the straight direction guide as shown in Fig. 9 (b) (right / left turn guide display mode) ) Is set according to the mode.
- the proximity intersection detection unit 9 detects intersections (proximity intersections) that are close to each other before and after the guidance target intersection. More specifically, by referring to the node data of the map DB3, intersections existing within a predetermined distance D1 from the guidance target intersection among the intersections on the running road are detected.
- the predetermined distance D1 is 50 m, for example.
- description will be made assuming that an intersection A and an intersection B are detected as intersections close to the guidance target intersection G.
- the distance D has a negative value because the intersection exists between the vehicle position and the guidance target intersection (that is, the intersection exists in front of the guidance target intersection).
- a positive value indicates that there is a guidance target intersection between the vehicle position and the intersection (that is, the intersection exists at the back of the guidance target intersection). It is shown that.
- Fig 10 The intersections marked with “ ⁇ ” in the adjacent intersection column are the intersections determined to be adjacent intersections.
- the guidance display control unit 10 includes the vehicle position information acquired by the positioning unit 2 and a route search unit.
- the guide mode is set to one of the right / left turn guide non-display mode and the right / left turn guide display mode.
- the guidance display control unit 10 first calculates the distance to the guidance target intersection where the host vehicle passes next. If the distance to the target intersection of the vehicle position guidance is greater than the predetermined distance D2 (for example, 200m), it is possible to determine which intersection is indicated even if the left / right turn direction guide is displayed. Set to right / left turn guide non-display mode that does not display right / left turn direction guide because it is difficult to force.
- the distance D2 is set to a value larger than the above-mentioned distance D1 (50 m). Since the guide figure in the right / left turn guide non-display mode does not have an arrow figure, an icon indicating the direction of turning as shown in FIG. 11 is provided to assist the user in the direction of turning at the next guidance target intersection. Should be displayed in the guide figure.
- the proximity intersection information detected by the proximity intersection detection unit 9 is referred to. If there are no nearby intersections around the guidance target intersection, even if the right / left turn direction guide is displayed, the user is less likely to misrecognize it as another intersection. Set to left turn guide display mode.
- FIGS. 12 (a) and 12 (b) are diagrams for explaining how the display mode of the photographed image differs depending on the vehicle position force and the distance to the guidance target intersection.
- FIG. 12 (a) is a diagram showing an example of a photographed image at a point where the guidance target intersection force is also distant (when distance D3 is exceeded).
- Figure 12 (b) shows a point approaching the guidance target intersection (distance
- FIG. 6 is a diagram showing an example of a live-action image in which a left / right turn direction guide is superimposed and displayed in the case of D3 or less).
- FIG. 13 is a flowchart showing the operation of the navigation device 100 according to the present invention.
- the route search unit 7 searches for the route to the destination based on the vehicle position information acquired by the positioning unit 2 (S12), and starts route guidance (S13).
- control unit 6 confirms that the vehicle has still reached the destination (NO in S14), whether there is a guidance target intersection in the route from the vehicle position to the destination. Judgment is made (S15). If there is no guidance target intersection in the route from the vehicle position to the destination (NO in S15), guidance is performed in the right / left turn guide non-display mode (S18).
- the guidance display control unit 10 guides the guidance target intersection that the vehicle passes next from the vehicle position.
- the distance to the point is calculated (S16). Note that the guidance display control unit 10 periodically calculates the distance from the vehicle position to the guidance target intersection (for example, every 10 msec).
- the guidance display control unit 10 determines that the distance from the vehicle position to the guidance target intersection is the distance D2. It is determined whether it is larger or smaller than /! (S 17). When the distance from the vehicle position to the intersection to be guided is greater than the distance D2 (NO in S17), guidance is performed in the right / left turn guide non-display mode (S18).
- the proximity intersection information detected by the proximity intersection detection unit 9 is referred to. It is determined whether or not there is (S19). If there is no adjacent intersection (NO in S19), guidance is provided in the right / left turn guide display mode (S20). On the other hand, if there is an adjacent intersection (YES in S19), it is determined whether the distance from the vehicle position to the guidance target intersection is longer or shorter than the distance D3 (S21).
- the distance from the vehicle position to the guidance target intersection G is longer than the distance D2 (200m), and at the point, Guidance is provided in the left turn guide non-display mode.
- the distance to the guidance target intersection is D2 or less, there are other intersections (intersection A and intersection B) within the distance Dl (50m) of the guidance target intersection G force, so the distance to the guidance target intersection is Longer than D3 (100m), the left / right turn guide non-display mode is continued at the point, and the right / left turn guide display mode is entered when the distance to the guidance target intersection is less than D3.
- the distance to the guidance target intersection is determined after approaching the guidance target intersection.
- D3 is less than or equal to D3
- the direction at the intersection to be guided is indicated by the left / right turn direction guide.
- the timing to start the instruction with the guide figure at the intersection to bend (timing to shift to the right / left turn guide display mode) By controlling), the user can identify the intersection as early as possible without misrecognizing it as another intersection.
- the timing for instructing the route at the guidance target intersection is set by the guide figure depending on whether there is an intersection existing within a predetermined distance D1 from the guidance target intersection.
- the method for setting the timing for instructing the course at the target intersection is not limited to this method. For example, the distance D4 to the nearest intersection to the guidance target intersection is calculated, and the smaller the distance D4, the more the timing for instructing the course at the guidance target intersection, the timing when the vehicle reaches the position near the guidance target intersection. Set it to.
- the timing for instructing the route at the guidance target intersection may be changed depending on which side of the guidance target intersection is in front of or behind the guidance target intersection. For example, when an intersection close to the guidance target intersection is on the near side of the guidance target intersection, the timing for instructing the route at the guidance target intersection is compared to the case where there is another intersection behind the guidance target intersection. It is set so that it is closer to the target intersection and force is indicated (that is, the instruction timing is delayed). This is because the intersection point in front is more visually visibly visible, so that there is a possibility of erroneous recognition if there is another intersection in front of the guidance target intersection.
- the timing for instructing the route at the guidance target intersection is the time when the vehicle positioning force and the distance to the guidance target intersection are equal to or less than D3, but Figs. 14 (a) and (b) As shown in Fig. 4, the distance force from the nearest intersection between the guidance target intersection and the adjacent intersection to the vehicle position may be less than the prescribed distance D5 (for example, 80m). As a result, it is possible to instruct the route at the planned target intersection at a timing at which it is always possible to reliably distinguish adjacent intersections.
- FIG. 15 (a) is a diagram showing a display example of a guide graphic in the case where the adjacent intersection 1 is in front of the guidance target intersection.
- FIG. 15 (b) is a diagram showing a display example of the guide figure when the guidance target intersection is closest to the front.
- the guidance display control unit 10 obtains the importance of the road that intersects the traveling road at the adjacent intersection, and takes the importance into consideration to determine the timing for instructing the course at the guidance target intersection. It may be set.
- the importance of the road is determined by, for example, the road type (national road, prefectural road, narrow street, etc.) and road width. As a result, it is unlikely that a road that intersects with a road that is running at a nearby intersection will be misrecognized as a guide route (ie, it is less likely to bend by mistake). If the road is a narrow road, the route at the guidance target intersection can be shown early so that the user can recognize the intersection that should be turned at an early stage.
- FIG. 16 is a diagram showing a guide graphic display example when a road (thin road) having an importance level lower than the importance level of the road being traveled is in front of the guidance target intersection.
- the route at the guidance target intersection is indicated by the guide graphic superimposed on the route at the guidance target intersection.
- the present invention is not limited to this. For example, as shown in FIG. Even if the guide arrow is superimposed on the screen, it does not matter.
- the guidance using the map image is presented until the timing for instructing the route at the guidance target intersection is reached.
- the guidance display may be switched from the guidance using the map image to the guidance using the live-action image at the timing of instructing the course at the guidance target intersection.
- the guide figure is superimposed and displayed on the real image acquired by the front camera, but the guide graphic is superimposed and displayed on the real image stored in advance in the storage medium. Even in this case, the present invention is effective.
- the shape of the intersection in front of the host vehicle has been described as the case where the entering road and the exiting road intersect at a right angle (that is, a cross shape).
- the shape may be any shape not limited to such a shape (for example, a Y shape, a Z shape or a K shape).
- the navigation device of the present invention is useful as a car navigation device installed in a vehicle. It can also be used as a navigation device in mobile objects such as mobile phones.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007553402A JP4560090B2 (ja) | 2006-06-12 | 2007-06-12 | ナビゲーション装置及びナビゲーション方法 |
US12/302,529 US20090240426A1 (en) | 2006-06-12 | 2007-06-12 | Navigation device and navigation method |
EP07745063A EP2028447A4 (en) | 2006-06-12 | 2007-06-12 | NAVIGATION DEVICE AND NAVIGATION PROCESS |
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EP (1) | EP2028447A4 (ja) |
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JPWO2015118859A1 (ja) * | 2014-02-05 | 2017-03-23 | パナソニックIpマネジメント株式会社 | 車両用表示装置および車両用表示装置の表示方法 |
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JP2018184142A (ja) * | 2017-04-27 | 2018-11-22 | 株式会社デンソー | 車両用表示装置 |
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JP2019152489A (ja) * | 2018-03-01 | 2019-09-12 | アルパイン株式会社 | ナビゲーション装置および走行経路案内方法 |
JP7066266B2 (ja) | 2018-03-01 | 2022-05-13 | アルパイン株式会社 | ナビゲーション装置および走行経路案内方法 |
WO2021075438A1 (ja) * | 2019-10-18 | 2021-04-22 | 株式会社豊田自動織機 | 荷役車両の操作支援装置 |
JP2021066540A (ja) * | 2019-10-18 | 2021-04-30 | 株式会社豊田自動織機 | 荷役車両の操作支援装置 |
JP7268575B2 (ja) | 2019-10-18 | 2023-05-08 | 株式会社豊田自動織機 | 荷役車両の操作支援装置 |
Also Published As
Publication number | Publication date |
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EP2028447A1 (en) | 2009-02-25 |
EP2028447A4 (en) | 2012-04-04 |
JPWO2007145190A1 (ja) | 2009-10-29 |
CN101467005A (zh) | 2009-06-24 |
JP4560090B2 (ja) | 2010-10-13 |
US20090240426A1 (en) | 2009-09-24 |
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