JP2004085470A - In-vehicle navigation system, guiding pathway searching method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an in-vehicle navigation system capable of reflecting a user's mind on selecting among several optional pathways displayed on a screen with a recommended pathway and a new guiding pathway other than the previously recommended pathway which the vehicle runs off, and to provide the guiding pathway searching method and a program for executing the method. <P>SOLUTION: When the vehicle runs off the under guiding pathway, the in-vehicle navigation system searches the guiding pathway capable of returning to a previous guiding pathway effectively and at least one more guiding pathway other than the present guiding pathway respectively, and guides the vehicle while displaying at least two guiding pathways, and the user can grasp a reason whether the vehicle runs off the recommended pathway on his mind or not. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an in-vehicle navigation device, a guidance route search method, and a program, and more particularly, to a technology for performing guidance display of a guidance route including a recommended route when a vehicle deviates from the recommended route.
[0002]
[Prior art]
In general, an in-vehicle navigation device detects the current position of the vehicle, reads map data near the current position from a data storage medium such as a CD-ROM or a DVD, and displays the map data on a screen. Also, a vehicle position mark indicating the vehicle position is displayed at the center of the screen, and map data in the vicinity is scrolled according to the progress of the vehicle around the vehicle position mark, so that the map information around the vehicle position can be always known. It has become. Further, when the user wants to know the guidance route to the destination, the user searches for a recommended route to the destination, displays the recommended route on the screen, and guides the vehicle to the destination. When the recommended route is deviated from the recommended route, the route to return to the recommended route is searched, and the route to return to the recommended route is displayed on the screen.
[0003]
[Problems to be solved by the invention]
However, even if the user wants to go to the destination by another route other than the recommended route, the in-vehicle navigation device cannot know to that effect, and always tries to return to the recommended route and displays a route that returns to the recommended route on the screen. Display guidance. Such guidance is troublesome for the user, and the guidance is eventually canceled.
[0004]
Therefore, the present invention solves the above-mentioned problems of the prior art, and displays a recommended route and a new guidance route other than the recommended route on the screen when the user deviates from the recommended route. It is an object of the present invention to provide a versatile in-vehicle navigation device, a guidance route searching method, and a program for implementing the method, which can be freely selected and reflect the user's intention.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, according to the in-vehicle navigation device of the present invention, when the vehicle deviates from the guidance route being guided, a route that efficiently returns to the guidance route that is being guided, and a guidance route that is being guided It is characterized by searching for at least one guidance route other than the above, and displaying and guiding at least two searched guidance routes. Therefore, when the user deviates from the guidance route being guided, the user can select a desired guidance route from at least two guidance routes, and guidance guidance with excellent versatility that can reflect the intention of the user can be performed.
[0006]
In addition, it is preferable for guidance and guidance to display and guide the searched at least two guidance routes at the branch point related to the searched at least two guidance routes.
[0007]
Further, by displaying each guidance display for displaying and guiding at least two guided routes in different colors, a difference between the respective guided routes is conveyed to the user in an easy-to-understand manner, and the user is also provided with a desired guided route reflecting his or her intention. Is easier to select. In addition, the safe driving can be performed by displaying the searched at least two guidance routes and outputting voice guidance for guiding to each guidance route. Furthermore, after the user selects from the searched at least two guide routes, the selected guide route is displayed and guided, so that the non-selected guide route is hidden from the screen, and the selected guide route is displayed. It is preferable from the viewpoint of guidance guidance and operation to display only the guidance.
[0008]
In addition, the on-vehicle navigation device determines that the user has selected one of the at least two guide routes if the user takes the guide route for a predetermined distance or more. If the guidance route is not changed even after performing the guidance display and voice guidance a predetermined number of times, it is assumed that the guidance route has been selected by the user. In other words, it is possible to detect which of the guidance routes the user has displayed as the route that the user wants to go to the destination, and to promptly shift to an appropriate guidance and guidance operation. At the same time, the user can transmit his / her intention to the in-vehicle navigation device without actual operation such as button operation.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0010]
(Constitution)
FIG. 1 is a block diagram showing a configuration of a vehicle-mounted navigation device according to an embodiment of the present invention. The on-vehicle navigation device 1 shown in FIG. 1 includes a CPU 11, a landmark / solid mark position information memory 12, a map information memory 13, a ROM 14, a RAM 15, a remote control interface (hereinafter abbreviated as a remote control I / F) 16, a voice guidance unit 17, Display controller 18, VRAM 19, landmark / solid mark generation unit 20, menu / list generation unit 21, image synthesis unit 22, monitor 23, touch panel 24, GPS receiver 25, Gyro sensor 26, running pulse detection sensor 27, and optical storage It has a media drive 28.
[0011]
The CPU 11 performs arithmetic processing and controls each component according to a program for executing various functions such as a navigation function stored in the ROM 13 described later. The landmark / three-dimensional mark position information memory 12 stores landmark position information and three-dimensional mark position information read from the optical storage medium 30 described later. The map information memory 13 stores map information such as POI data and road data read from the optical storage medium 30. The ROM 14 stores guidance route search software, intersection guidance software, and the like according to a guidance route search method described later. The RAM 15 temporarily stores operation data, display data, and the like. The remote controller I / F 16 receives various settings and instructions from the menu selection sent from the remote controller 31. The voice guidance unit 17 provides voice guidance on the distance to the intersection, the traveling direction, and the like. The display controller 18 generates a map image, a guidance route, and the like. The VRAM 19 stores an image generated by the display controller 18. The landmark / solid mark generation unit 20 generates a landmark image and a solid mark image. The menu / list generator 21 generates various menus and lists. The image combining unit 22 combines and outputs various images. The monitor 23 displays an image output from the image combining unit 22. The touch panel 24 is a transparent touch panel and is arranged on the front of the screen of the monitor 23. The GPS receiver 25 receives a GPS signal transmitted from a GPS satellite and detects the current position and direction of the vehicle. More specifically, the GPS receiver 25 receives radio waves transmitted from a plurality of GPS satellites, performs three-dimensional positioning processing or two-dimensional positioning processing, calculates the absolute position and direction of the vehicle, Is output together with the positioning time. The Gyro sensor 26 is a sensor for detecting the direction of the vehicle. The traveling pulse detection sensor 27 outputs a vehicle speed according to a pulse generated at every constant traveling distance. The optical recording medium drive 28 reads the map information from an optical storage medium 30 such as a CD-ROM or a DVD in which map information including POI data and road data is stored. The above components are connected to each other via an internal bus 29.
[0012]
(motion)
Next, in the in-vehicle navigation device having such a configuration, a plurality of guidance routes from the vehicle position to the destination are searched for performing guidance along the route to the destination, and the searched guidance is A guidance route search process and a guidance display process when the vehicle deviates from the recommended route during guidance by the recommended route that is the most appropriate route among the routes will be described.
[0013]
FIG. 2 is a flowchart showing the operation of the guide route searching method of the present invention. FIGS. 3 to 9 are diagrams showing examples of guidance guidance screens displayed during each operation, and FIGS. 10 and 11 are diagrams showing examples of arrow display at a branch point between two guidance routes. 10 (a) and 11 (a) are arrow display examples in the case of two lanes on one side, and FIGS. 10 (b) and 11 (b) are arrows in the case of one lane on one side. It is a display example.
[0014]
First, when the user gives an instruction for guidance from the vehicle 41 to the destination 42 on the map displayed on the screen 40 as shown in FIG. 3, the in-vehicle navigation device is stored in the ROM 14 of FIG. The recommended route is searched by the guidance route search software provided, and a recommended route 43 indicated by a thick solid line as shown in FIG. On the other hand, the in-vehicle navigation device monitors whether the vehicle 41 has deviated from the recommended route 43 (step S101). Then, as shown in FIG. 5, when the vehicle 41 deviates from the recommended route 43 (step S101; YES), a route 44 returning to the recommended route 43 is searched by the guidance route search software stored in the ROM 14 of FIG. On the other hand, at this time, at least one new guidance route to the destination 42 other than the recommended route at this time, here, one new guidance route 45 is searched by the guidance route search software (step S103). Then, as shown in FIG. 6, a route 44 returning to the recommended route 43 and a new guidance route 45, which are the search results, are displayed on the screen 40 by display means, for example, displayed in different colors, for guidance. (Step S104). In FIG. 6, the route 44 returning to the recommended route 43 is indicated by a thick solid line, and the new guidance route 45 is indicated by a thick broken line. At the same time, an arrow 51 indicating a U-turn and returning to the recommended route 43 and an arrow 52 indicating the direction of the new guidance route 45 are displayed as shown in FIG. Then, as shown in FIG. 7, when the vehicle 41 approaches a guide point where the vehicle 41 branches into two routes, for example, an intersection 46, the user is presented with the existence of the two routes and the selection of one of the routes. 11, arrows 51 and 52 for prompting selection of two routes are displayed on the screen 40 near the branch point as shown in FIG. 11, and voice guidance is output by the voice guidance unit 17 of FIG. 1 (step S105). ).
[0015]
Then, it is monitored whether or not the vehicle 41 has proceeded to the route 44 returning to the recommended route 43 (step S106), and the vehicle 41 has been traveling on the route 44 returning to the recommended route 43 or has traveled a predetermined distance or more. If it is detected (step S106; YES), as shown in FIG. 8, the display guidance of the new guidance route is terminated, the route 44 returns to the recommended route 43, and the recommended route after returning to the recommended route 43. The guidance guidance by 43 is performed (step S107).
[0016]
On the other hand, when the own vehicle 41 does not proceed on the route 44 returning to the recommended route 43 in step S106, and further proceeds on a new guidance route 45 (step S106; NO), the new guidance route 45 is moved by a predetermined distance. It is monitored whether or not the vehicle is running (step S108). If the vehicle 41 has not traveled the new guide route 45 for a predetermined distance or more (step S108; NO), the process returns to step S105 to display two guidance displays, the route 44 returning to the recommended route 43 and the new guide route 45. continue. On the other hand, when the vehicle 41 has traveled the new guidance route 45 for a predetermined distance or more (step S108; YES), a process of selecting two routes, the route 44 returning to the recommended route 43 and the new guidance route 45 during that time. That is, it is confirmed whether or not the two arrows shown in FIG. 11 have been displayed a predetermined number of times (step S109). Then, if the two routes, the route 44 returning to the recommended route 43 and the new guidance route 45, have not been selected a predetermined number of times (step S109; NO), the process returns to step S105 and returns to the recommended route 43. The two guidance displays of the route 44 and the new guidance route 45 are continued. On the other hand, if the process of selecting the two routes, the route 44 returning to the recommended route 43 and the new guidance route 45, has been performed a predetermined number of times (step S109; YES), as shown in FIG. Assuming that the user deviates from the recommended route 43 and intentionally selects the new guide route 45, the display guidance of the route 44 and the recommended route 43 returning to the recommended route 43 is ended, and the new guide route 45 is recommended. As a route, guidance is provided along the recommended route, which is the new guidance route 45 (step S110).
[0017]
According to this operation, the user can know that there is a guidance route other than the recommended route by displaying the guidance to at least two guidance routes in different display means, for example, different colors in step S104. Can be. Further, in step S105, the directions to the two guidance routes are prompted by the guidance display and the voice guidance with the arrow, thereby giving the user an opportunity to select one of the guidance routes and reflecting the user's intention. . In addition, by performing the determination process of grasping the progress of the vehicle in steps S108 and S109, the vehicle-mounted navigation device determines whether the departure from the recommended route is due to an operation consciously performed by the user. I can understand.
[0018]
The embodiment of the present invention has been described above. The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.
[0019]
【The invention's effect】
According to the present invention described above, when the user deviates from the recommended route, the recommended route and a new guidance route other than the recommended route are displayed on the screen as a guide so that the user can freely select from several routes. Can reflect the user's intention. Also, the fact that the user deviated from the recommended route can be grasped on the device side as a result of the user's intention, and guidance can be provided by an appropriate guidance route desired by the user.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a vehicle-mounted navigation device according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating an operation of a guidance route searching method according to the present invention.
FIG. 3 is a diagram illustrating a display example of a guidance screen before a guidance processing;
FIG. 4 is a diagram showing an example of a guidance screen displayed only by a recommended route;
FIG. 5 is a diagram illustrating a display example of a guidance screen immediately after the user deviates from a recommended route;
FIG. 6 is a diagram illustrating an example of a guidance screen displayed by a guidance route including a route that deviates from the recommended route and returns to the recommended route and a new route.
FIG. 7 is a diagram showing a display example of a guidance screen at a branch point between two guidance routes.
FIG. 8 is a diagram illustrating a display example of a guidance screen when a user advances on a route that returns to a recommended route.
FIG. 9 is a diagram illustrating a display example of a guidance screen when a new guidance route is advanced.
FIG. 10 is an example of an arrow showing directions of a route immediately after deviating from the recommended route and returning to the recommended route and a new route.
FIG. 11 is an example of an arrow showing each direction at a branch point of two guidance routes.
[Explanation of symbols]
1 onboard navigation device 11 CPU
12 Landmark / solid position information memory 13 Map information memory 14 ROM
15 RAM 16 Remote control I / F
17 Voice guidance unit 18 Display controller 19 VRAM
Reference Signs List 20 landmark / solid mark generation unit 21 menu / list generation unit 22 image synthesis unit 23 monitor 24 touch panel 25 GPS receiver 26 Gyro sensor 27 running pulse detection sensor 28 optical storage medium drive 29 internal bus 30 optical storage medium 31 remote control 40 screen 41 own vehicle 42 destination 43 recommended route 44 route to return to recommended route 45 new guidance route 46 intersection 51, 52 arrow

Claims (11)

In a vehicle-mounted navigation device that searches for a guidance route to a destination, when the vehicle deviates from the guidance route being guided, at least one route other than the guidance route that efficiently returns to the guidance route that is being guided. An on-vehicle navigation device that searches for a guidance route and displays and guides at least two of the found guidance routes. The on-vehicle navigation device according to claim 1, wherein the searched at least two guide routes are displayed and guided at a branch point related to the searched at least two guide routes. The in-vehicle navigation device according to claim 1, wherein each of the guidance displays for displaying and guiding the searched at least two guidance routes is displayed in different colors. The in-vehicle navigation device according to any one of claims 1 to 3, wherein the searched at least two guidance routes are displayed, and voice guidance for guiding each guidance route is output. 2. The in-vehicle navigation device according to claim 1, wherein after the user selects from the at least two searched guidance routes, the selected guidance route is displayed to provide guidance. 6. The in-vehicle navigation device according to claim 5, wherein if one of the searched at least two guide routes is on a predetermined distance or more, the guide route is regarded as selected by the user. 6. The in-vehicle navigation according to claim 5, wherein if the guidance route is not changed even if the guidance display and the voice guidance at the branch point are performed a predetermined number of times or more, the guidance route is regarded as being selected by the user. apparatus. In a guidance route search method for searching for a guidance route to a destination, when the vehicle deviates from the guidance route being guided, at least one of a route that efficiently returns to the guidance route that is being guided, and at least one other than the guidance route that is being guided. A method for searching for a guidance route, comprising: searching for a guidance route; and displaying and guiding at least two of the searched guidance routes. A determining step of determining whether or not a return to the guiding route under guidance is performed after displaying and guiding the searched at least two guiding routes; and a determination result of the determining step. A step of ending display and guidance of a guidance route other than the guidance route being guided when returning, and continuing to display and guide a route returning to the guidance route being guided, and a result of the determination by the determination step. When the route does not return to the guiding route being guided, the route returning to the guiding route being guided is displayed and guided, and the guiding route other than the guiding route being displayed is continued to be displayed. The method according to claim 8, further comprising the steps of: On the computer,
When the vehicle deviates from the guidance route being guided, a route for efficiently returning to the guidance route being guided, and at least one guidance route other than the guidance route being guided; And a guidance route searching program for performing the procedure of displaying and guiding the guidance route. After the procedure of displaying and guiding the searched at least two guidance routes, a determination procedure of determining whether or not the route has returned to the guidance route being guided is determined. When returning to the return route, displaying the guidance route other than the guidance route being guided and ending the guidance, and continuing to display and guide the return route to the guidance route being guided, and the determination procedure. If the route does not return to the guidance route that is being guided, the route that returns to the guidance route that is being guided is displayed and guidance is ended, and guidance routes other than the guidance route that is being guided are displayed and guided. 11. The program for searching for a guidance route according to claim 10, further comprising:

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