JP2006292662A - Navigation system and optimum route setting method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily change the optimum route up to a destination including an ordinary road. <P>SOLUTION: This navigation system for searching for the optimum route up to the destination and for displaying a schematic diagram of the optimum route by connecting a plurality of through points on the optimum route detects a position touched by a user on a schematic diagram display screen of the optimum route, displays a list of a plurality of change through-point candidates in place of the through point, when the touch of the user is detected in through point display on the the optimum route schematic diagram, and the initial through point is changed to the change through-point candidate to search again the optimum route, when the touch of the user is detected in any of the change through-point candidates. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle navigation device and an optimum route setting method thereof.

  When changing the interchange (hereinafter referred to as IC) to be used on the route to the destination, the IC on the route closest to the current location and the destination and the three ICs around them are extracted on the road map. There is known a navigation device in which an IC extracted in a format that maintains the positional relationship of the IC is displayed, and the IC to be used is changed to an IC touched by a passenger (for example, see Patent Document 1).

Prior art documents related to the invention of this application include the following.
JP 2000-241186 A

  However, the conventional navigation device described above is limited to changing to the three ICs closest to the current location and the destination on the toll road, and it is not possible to change the waypoint of the general road, There is a problem that a route including a general road cannot change the waypoint and is not convenient.

In the navigation device that searches for the optimal route to the destination and displays the schematic diagram of the optimal route by connecting multiple transit points on the optimal route, the position touched by the user on the schematic map display screen of the optimal route is detected. When it is detected that the user has touched the waypoint display on the optimum route schematic, a list of a plurality of change placepoint candidates that can replace the waypoint is displayed, and the user can select one of the change placepoints. When it is detected that the candidate has been touched, the initial route is changed to the changed route candidate and the optimum route is searched again.
In addition, when it is detected that the user touches between the waypoints on the optimum route schematic, a list of a plurality of additional waypoint candidates between the waypoints and the waypoints is displayed. When it is detected that the user has touched one of the additional waypoint candidates, the optimum route passing through the additional waypoint candidate is searched again.
In addition, the road type between the waypoints is displayed in the optimum route schematic diagram. When it is detected that the user touches the road type display, a list of a plurality of road type candidates that can be used for the road type is displayed and used. When it is detected that the person has touched one of the road type candidates, the initial road type is changed to the road type candidate and the optimum route is searched again.

  According to the present invention, the optimum route to a destination including a general road can be easily changed.

  FIG. 1 is a diagram showing a configuration of an embodiment. The GPS receiver 1 receives radio waves from a satellite and detects the current location of the vehicle by satellite navigation. The travel distance sensor 2 detects the travel distance of the vehicle, and the travel direction sensor 3 detects the travel direction of the vehicle. The current location of the vehicle is detected by autonomous navigation based on the travel distance and travel direction detected by these sensors 2 and 3. The map database 4 is a storage device that stores various data relating to road maps.

  The input device 5 includes operation members such as switches and direction keys. By operating these operation members, the scale of the road map display is changed, scrolling, setting of destinations, waypoints on the route, and road types are set and changed. It can be performed. The beacon receiver 6 receives a beacon broadcast transmitted from a roadside optical beacon transmitter and a radio beacon transmitter, and the FM multiplex receiver 7 receives an FM multiplex broadcast transmitted from an FM broadcast station. These beacon broadcasts and FM multiplex broadcasts include all road traffic information that occurs on the roads such as traffic jams, traffic restrictions, construction, accidents, weather, and the like, causing traffic obstacles.

  The controller 10 includes a CPU 10a, a ROM 10b, a RAM 10c, etc., and displays a road map around the current location and a route to the current location and the destination on the display 11 and performs a guidance broadcast by the speaker 12 to search for a route and a detour, on the route Set and change waypoints and road types, route guidance, etc. In addition, the touch panel switch 11b is installed in the display part 11a of the display 11, and the position where the passenger | crew on the display part 11a touched the hand can be detected.

  2 and 3 are flowcharts showing the route setting program. The operation of the embodiment will be described with reference to this flowchart. When the destination setting operation or the route changing operation is performed by the input device 5, the controller 10 starts executing the route setting program.

  In step 1, the destination set by the input device 5 is input. In the next step 2, the latest road traffic information is obtained by the beacon receiver 6 and the FM multiplex receiver 7, and the cost is calculated in the shortest time in consideration of the latest road traffic information by the well-known Dijkstra method. Search for (shortest time path). Note that the shortest distance route to the destination may be searched by calculating the cost of the shortest distance by the Dijkstra method.

  In step 3, a schematic diagram of the optimum route from the departure point to the destination is displayed on the display 11. FIG. 4 shows a display example of a schematic diagram of the optimum route. In this example, the passing points 1 to 5 on the optimal route are displayed by the passing point (route point) icon 100, and a schematic diagram of the optimal route is generated by connecting these passing points. Further, the road type between the passing points is displayed with the road type icon 101, the distance from each passing point 1 to 5 and the expected passing time are displayed, and the position where the vehicle is passing is displayed with the own vehicle position icon 102. .

  In this embodiment, an example is shown in which a schematic diagram of the optimum route from the departure point to the destination is displayed on the display screen of the display. However, if the optimum route to the destination is long, many waypoints are displayed. Therefore, when the optimum route is long, the schematic diagram may be divided so that the schematic diagram is easy to see, and may be switched and displayed in units of the divided route diagram.

  The occupant can change the passing point and the road type and add the passing point (passage point) by looking at the schematic diagram of the optimum route displayed on the display 11 (see FIG. 4). When changing the passing point or the road type, when the occupant touches the passing point icon 100 or the road type icon 101 desired to be changed on the optimum route schematic diagram, the touch point switch 11b changes the passing point or the road type. Recognize the request. In addition, when a passing point (passage point) is added near the vehicle position, when the occupant touches the vehicle position icon 102 on the optimum route schematic diagram, a touch point near the vehicle position is touched by the touch panel switch 11b. Recognize additional requests.

  Further, when a new passing point is added between a passing point (route) and an adjacent passing point, the occupant is between the passing point icon 100 on the optimum route schematic diagram and the adjacent passing point icon 100. When a finger is touched, a new waypoint addition request between passing points is recognized by the touch panel switch 11b.

  In step 4, it is confirmed whether or not a passing point changing operation has been performed by the touch panel switch 11b. The passing point changing process will be described by taking as an example a case where the occupant touches the passing point 1 on the optimum route schematic diagram and performs an operation of changing the passing point. In step 5, as shown in FIG. 5, the waypoint selection list 103 is displayed below the passing point 1 on the route schematic diagram. At this time, displays other than the passing point 1 to be changed and the waypoint selection list 103 may be darkened so that the changing point 1 and the waypoint selection list 103 can be easily viewed.

  In the waypoint selection list 103, change route point candidates near the pass point 1 are extracted from the road map data, and for example, three change route point candidates are displayed in order of closeness to the pass point 1. When the “to” scroll switch is operated, another change waypoint candidate is displayed. When the occupant touches the display of the change point candidate “◯ × IC (interchange)” in the route point selection list 103, the desired change point “○ × IC” can be recognized by the touch panel switch 11b.

  In step 6, the change desired route point “◯ × IC” selected by the occupant is input by the touch panel switch 11 b, and in next step 7, the route passing “◯ × IC” is searched again instead of the passing point 1. In step 8, as shown in FIG. 6, a schematic diagram of the optimum route passing through the re-searched “◯ × IC” is displayed on the display 11. FIG. 6 shows a part of a schematic diagram of the optimum route from the departure point to the passing point 2.

  In FIG. 6, “◯ × IC” is displayed closer to the passing point 2 because it is farther than the original passing point 1, but conversely, if it is closer to the passing point 1, it is displayed closer to the current location of the vehicle. To do. In other words, each passing point is displayed at a position corresponding to the distance from the departure point to each passing point on the schematic diagram of the optimal route so that the positional relationship of each passing point on the optimal route can be roughly grasped.

  Further, when the occupant touches the display of “○ × Intersection” on a general road in the waypoint candidates in the route point selection list 103, the touch panel switch 11b recognizes the desired route point “○ × Intersection”. Can do. As shown in FIG. 7, since “Ox intersection” is on a general road, when the route passing through “Ox intersection” is re-searched, the original passing point 1 (IC) is the highest in “Ox intersection”. If it is close, the passing point 1 is searched again, and a “◯ × intersection” is newly added between the departure point and the passing point 1.

  Further, when the occupant touches the display of “XX Square” on the general road in the waypoint candidates in the waypoint selection list 103, the touch panel switch 11b recognizes the desired route point “XX Square”. be able to. Assuming that “Ox Square” is far from the original passing point 1 on the general road, when the route passing through “Ox Square” is re-searched, the “Ox Square” and the passing point 2 If there is another IC different from the original passing point 1 in the meantime, as shown in FIG. 8, a route to enter the highway from “Ox Square” via the passing point 1 ′ (IC) is searched. On the other hand, when there is no other IC different from the original passing point 1 between “XX Square” and the passing point 2, as shown in FIG. A way to enter the highway from the passing point 2 (IC) is searched.

  In step 9 in FIG. 2 after the passing point changing process is completed, it is confirmed whether or not a route guidance start request operation has been performed by the input device 5, and if there is a route guidance start request, this route setting program is terminated. At the same time, return to the route guidance program (not shown), display the road map around the current location on the display 11, the optimum route to the destination after the setting change and the current location of the vehicle, and guide the passenger to the destination along the optimum route To do.

  If there is no passing point change operation in step 4, or if there is no route guidance start request in step 9, the process proceeds to step 10, and it is confirmed whether or not the road type changing operation is performed by the touch panel switch 11b. Road type change processing by taking as an example a case where the passenger touches the road type icon 101 of the “highway” between the passing points 1 and 2 on the optimum route schematic diagram shown in FIG. Will be explained.

  In step 11, a road type selection list 104 is displayed between the passing points 1 and 2 on the optimum route schematic diagram as shown in FIG. At this time, displays other than the road to be changed and the road type selection list 104 may be darkened so that the road to be changed and the road type selection list 104 can be easily viewed.

  The road type selection list 104 includes road type candidates that can specify a route area such as a general road along the sea or a general road along a mountain in addition to a road type such as an expressway, a toll road, and a general road. And when another “up” or “down” scroll switch is operated, another road type candidate is displayed. When the type is changed from an expressway to a general road, it is changed to an appropriate passing point on the general road near the original passing point 1 (IC) by re-searching.

  In step 12, the desired road type selected by the occupant is input by the touch panel switch 11b, and in the following step 13, the optimum route is re-searched according to the changed road type. In step 14, a schematic diagram of the re-searched optimum route is displayed on the display 11, and in step 15, it is confirmed whether or not a route guidance start request operation has been performed by the input device 5. If there is a request for starting route guidance, the route setting program is terminated and the process returns to the route guidance program (not shown). A road map around the current location, the optimum route to the destination after the setting change, and the current location of the vehicle are displayed on the display 11. Is displayed and the occupant is guided to the destination along the optimum route.

  If there is no road type change operation in step 10, or if there is no route guidance start request in step 15, the process proceeds to step 16, and it is confirmed whether a waypoint addition operation has been performed by the touch panel switch 11b. The waypoint addition processing will be described by taking as an example a case where a passenger touches the vehicle position icon 102 on the route schematic diagram shown in FIG. 4 and adds a waypoint between the departure point and the passing point 1.

  In step 17, as shown in FIG. 11, an additional waypoint selection list 105 is displayed between the starting point on the route schematic diagram and the passing point 1. At this time, displays other than the additional waypoint selection list 105 may be darkened so that the additional waypoint selection list 105 can be easily viewed.

  In the additional waypoint selection list 105, additional waypoint candidates around the current location are extracted from the road map data, and for example, three additional waypoint candidates are displayed in order from the current location, and “up” or “down” is displayed. When the scroll switch is operated, another additional waypoint candidate is displayed. When the occupant touches one of the additional route point candidates in the additional route point selection list 105, the desired route point can be recognized by the touch panel switch 11b.

  In step 18, an additional waypoint candidate selected by the occupant is input by the touch panel switch 11 b, and in step 19, the optimum route reaching the passing point 1 through the additional waypoint candidate is re-searched. In step 20, a schematic diagram of the optimum route searched again is displayed on the display 11.

  In addition, when adding or changing a passing point (route point), as shown in FIG. 12, the direction and distance from the current location of each route point candidate may be displayed. Thereby, the positional relationship between the current location and each waypoint candidate can be grasped even on the schematic diagram of the optimum route.

  Moreover, although the example of adding a transit point around the current location is shown in the above process of adding a transit point (intermediate transit point), the addition of the transit location is not limited to the vicinity of the present location, and between any transit transit point and a transit point New stops can be added to In this case, the touch panel switch 11b detects that an occupant's finger has touched between the passing point icon 100 and the adjacent passing point icon 100, and between the passing point (passage point) and the adjacent passing point. Recognize requests to add new passing points.

  In step 21 after the waypoint addition processing, the route guidance start request operation is confirmed by the input device 5 and if there is a route guidance start request, the route setting program is terminated and the route guidance program (not shown) is returned, The display 11 displays a road map around the current location, the optimum route to the destination, and the current location of the vehicle, and guides the occupant to the destination along the optimum route. If there is no request for starting route guidance, the process returns to step 2 to repeat the above-described passing point and road type changing process and waypoint addition process.

  Thus, according to an embodiment, the position touched by the user on the schematic diagram display screen of the optimum route is detected, and it is detected that the user touched the waypoint display on the optimum route schematic diagram. Then, a list of a plurality of change route point candidates that replace the route point is displayed, and when it is detected that the user has touched one of the change route point candidates, the original route point is changed to the change route point candidate. Since the optimum route is re-searched by changing to the above, all waypoints on the optimum route including the general road can be easily changed.

  In addition, according to an embodiment, when it is detected that the user has touched between the waypoint and the waypoint on the optimum route schematic diagram, a plurality of additional route points between the waypoint and the waypoint are provided. When a list of location candidates is displayed and it is detected that the user has touched one of the additional waypoint candidates, the optimum route passing through the additional waypoint candidate is re-searched. A new waypoint can be easily added between any waypoints on the optimum route to the destination.

  According to one embodiment, when displaying a list of changed or additional waypoint candidates, the directions and distances of those waypoint candidates are displayed together from the current location or waypoints, so that the optimum route schematic diagram is displayed. Even in the above, it is possible to grasp the positional relationship between the current location or waypoints and each waypoint candidate, and it is possible to appropriately add or change waypoints.

  Furthermore, according to one embodiment, when the road type between the waypoints is displayed in the optimum route schematic diagram and it is detected that the user has touched the road type display, a plurality of road types instead of the road type are displayed. When the candidate list is displayed and it is detected that the user has touched one of the road type candidates, the original road type is changed to the road type candidate and the optimum route is re-searched. The type of any road on the optimum route to the destination including the general road can be easily changed.

  The correspondence between the constituent elements of the claims and the constituent elements of the embodiment is as follows. That is, the controller 10 constitutes route search means, the controller 10 and the display 11 constitute display means, and the touch panel switch 11b constitutes contact position detection means. The above description is merely an example, and when interpreting the invention, the correspondence between the items described in the above embodiment and the items described in the claims is not limited or restricted.

It is a figure which shows the structure of one embodiment. It is a flowchart which shows the route setting process of one Embodiment. FIG. 3 is a flowchart illustrating a route setting process according to the embodiment following FIG. 2. FIG. It is a figure which shows the schematic of the optimal path | route to the destination. It is a figure which shows the example of a display screen for a passing point change. It is a figure which shows the example of a display screen of a passing point change result. It is a figure which shows the example of a display screen of a passing point change result. It is a figure which shows the example of a display screen of a passing point change result. It is a figure which shows the example of a display screen of a passing point change result. It is a figure which shows the example of a display screen for a road classification change. It is a figure which shows the example of a display screen for a stopover addition. It is a figure which shows the example which displays the direction and distance of a waypoint candidate from a vehicle present location.

Explanation of symbols

1 GPS receiver 2 Travel distance sensor 3 Traveling direction sensor 4 Map database 5 Input device 6 Beacon receiver 7 FM multiplex receiver 10 Controller 11 Display 12 Speaker

Claims (7)

A route search means for searching for an optimum route to the destination;
In a navigation device comprising display means for connecting a plurality of waypoints on the optimum route and displaying a schematic diagram of the optimum route,
Contact position detection means for detecting the position touched by the user on the display screen of the display means,
When the contact position detection means detects that the user has touched the waypoint display on the schematic diagram of the optimum route, the display means displays a list of a plurality of change placepoint candidates in place of the waypoint. ,
When the contact position detection unit detects that the user has touched any of the changed route point candidates, the route search unit changes the original route point to the change route point candidate and re-establishes the optimum route. A navigation device characterized by searching. The navigation device according to claim 1, wherein
When the contact position detecting means detects that the user has touched between the waypoint and the waypoint on the schematic diagram of the optimum route, the display means detects a plurality of points between the waypoint and the waypoint. Display a list of additional waypoint candidates,
The route search means, when it is detected by the contact position detection means that the user has touched any additional waypoint candidate, re-searches for an optimum route that passes through the additional placepoint candidate. Navigation device. The navigation device according to claim 1 or 2,
The display device, when displaying a list of waypoint candidates, displays the direction and distance of the waypoint candidates from the current location or the waypoints together. The navigation device according to claim 1, wherein
The display means displays a road type between waypoints in a schematic diagram of the optimum route, and when the contact position detection means detects that the user touches the road type display, a plurality of alternatives to the road type are displayed. Display a list of road type candidates,
When the contact position detection unit detects that the user has touched any of the road type candidates, the route search unit changes the original road type to the road type candidate and searches for the optimum route again. A navigation device characterized by that. In the optimum route setting method of the navigation device that searches for the optimum route to the destination and displays a schematic diagram of the optimum route by connecting a plurality of waypoints on the optimum route,
Detects the position touched by the user on the optimum route schematic display screen, and if it is detected that the user has touched the waypoint display on the optimum route schematic diagram, multiple changes are made instead of the waypoint When a list of location candidates is displayed and it is detected that the user has touched any of the change waypoint candidates, the initial route point is changed to the change route place candidate and the optimum route is re-searched. An optimum route setting method for a navigation device. The optimal route setting method of the navigation device according to claim 5,
When it is detected that the user has touched between the waypoints on the optimum route schematic, a list of a plurality of additional waypoint candidates between the waypoints and the waypoints is displayed. An optimal route setting method for a navigation device, characterized in that when it is detected that any of the additional waypoint candidates has been touched, the optimum route passing through the additional waypoint candidate is re-searched. The optimal route setting method of the navigation device according to claim 5,
When the road type between the waypoints is displayed in the optimum route schematic diagram and it is detected that the user has touched the road type display, a list of a plurality of road type candidates replacing the road type is displayed. An optimum route setting method for a navigation device, characterized in that when it is detected that any one of road type candidates is touched, the original road type is changed to the road type candidate and the optimum route is searched again.

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