JP2015059841A - Navigation device and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device and computer program that allow a user to easily understand how a searched new route is changed from the prior guidance route.SOLUTION: When a new route branching from a guidance route at Tsuzuki Interchange is searched in response to the reception of traffic information, a navigation device adds a nominal box 260 of Tsuzuki Interchange to a passing point list 250 in which nominal boxes 260 showing the point names 261 of passing points on the guidance route are arranged in order of passing on a belt-like guidance route simulation diagram, and displays a bypass implication diagram 501 branching from the guidance route simulation diagram 270 with the added nominal box 260 as the starting point. The navigation device further displays, on a display device 3, a new route presentation image in which the current guidance route 511 and the searched route 512 are indicated on a map with a map display range defined to include the entire different parts between the current guidance route and the searched guidance route.

Description

  The present invention relates to a navigation device that provides a user with route guidance to a destination.

  In a navigation device mounted on an automobile, as a technique for guiding a route to a destination for a user, a traffic information receiving device can be used to guide the travel along a guidance route to the destination. A technique is known in which, when information is received, a new route that automatically bypasses a traffic jam section represented by the received traffic information is automatically searched, and a guidance route is updated to the searched new route (for example, Patent Documents) 1).

  Here, in this technology, when updating the guidance route based on traffic information, a congestion section is displayed on the map, or a list in which the names of passing points on the current guidance route are arranged in the order of passage is displayed in the congestion section. By displaying the name of the corresponding passing point in a highlighted form, the congestion section that caused the update of the guidance route is presented to the user.

JP 2007-78544 A

  According to the navigation device that automatically searches for a new route based on the traffic information as described above and updates the guide route to the searched new route, the user can guide the route before the updated new route is updated. It is difficult to immediately grasp how the route has been changed from the route. For this reason, the user may have a sense of anxiety about whether or not the updated guidance route may be truly adopted.

  Therefore, the present invention automatically searches for a new route, and in the navigation device that updates the guide route to the searched new route, how the searched new route is changed from the previous guide route. It is an object to enable a user to easily grasp whether a route is a route.

  In order to achieve the above object, the present invention provides a navigation device that guides traveling along a guidance route, a display device, a traffic information receiving device that receives traffic information representing a traffic jam section, and a current location that calculates a current location. A calculation means, a guidance route calculation means for searching for a suitable route to a destination in consideration of a traffic jam section represented by the traffic information received by the traffic information receiving device and setting the guidance route, and a map including a current position A guide image display means for displaying a guide image representing the current position and the guidance route on the display device, a road simulated figure that is a straight strip-like figure, and a road simulated figure arranged in order of passage along the road, Passage that displays on the display device a passing point list including a point name of a guide point selected from points on the guide route that are closer to the destination than the current position When the traffic information received by the point list display means and the on-traffic receiving device indicates that a traffic jam section exists on the guidance route, the traffic congestion section indicated by the received traffic information on the guidance route calculation means In addition to searching for a suitable route to a new destination taking into account the new route, the passing point list is displayed on the passing point list display means as the passing point list in addition to the road simulation figure and the point name. A passing point list including a new route suggestion figure which is a figure having a shape branching from the road simulated figure starting from an arrangement position of a point name of a branch point between the searched new route and the guidance route included in And a new route presenting means for displaying a passing point list in a certain new route implied display form.

  Here, in such a navigation device, the new route presentation unit adds the branch point to the passing point list display unit when the branch point is not included in the guide point. In addition, it is preferable to display the passing point list in the new route implied display form.

  Further, in the navigation device such as these, in the new route presenting means, the passing point list display means displays the road simulated figure, the point name, and the new route implied figure as a passing point list in the new route implied display form. In addition, it may be configured to display a passing point list in the new route implied display form including a traffic jam section graphic representing a traffic jam section arranged at a position between the spot names of the guide points before and after the traffic jam section.

  In addition, the navigation device such as these may display the guide image when the traffic information received by the on-traffic receiving device indicates that a traffic jam section exists on the guidance route in the new route presenting means. Means, on the map including at least a portion of the new route different from the new route instead of the guide image in the guide image display means, the guide route, and the guide route of the new route You may comprise so that the new route guidance image at least showing the different part may be displayed on the said display apparatus.

In each of the navigation devices described above, a guide route that updates the guide route to the new route according to a user's predetermined operation during a period in which the passing point list in the new route implied display form is displayed. It is preferable to provide an updating means.
According to the navigation device as described above, when a traffic congestion section that has occurred on the current guidance route occurs, a new route is automatically searched, and a road simulation figure that is a straight belt-like figure, Point names of branch points between the new route searched for and the guidance route, including the point name of the guide point selected from the points on the guidance route, arranged in order of passage along the road simulation figure A new route implied figure, which is a figure having a shape branched from the road simulated figure starting from the arrangement position of, is displayed. Therefore, the user can immediately grasp from the display of the passing point list which point on the previous guidance route the new route searched is a branching route.

  As described above, according to the present invention, in the navigation device that automatically searches for a new route and updates the guide route to the searched new route, the searched new route is identified from the previous guide route. Thus, the user can easily grasp whether the route has been changed.

It is a block diagram which shows the structure of the navigation system which concerns on embodiment of this invention. It is a figure which shows the example of a display of the navigation system which concerns on embodiment of this invention. It is a flowchart which shows the new route presentation process which concerns on embodiment of this invention. It is a figure which shows the example of a display of the navigation system which concerns on embodiment of this invention. It is a figure which shows the example of a display of the navigation system which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 shows a configuration of a navigation system according to the present embodiment.
As illustrated, the navigation system includes a navigation device 1, an operation unit 2, a display device 3, a vehicle state sensor 4, a GPS receiver 5, and a traffic information receiver 6. Here, the vehicle state sensor 4 is various sensors that detect a vehicle state, such as an azimuth sensor such as an angular acceleration sensor or a geomagnetic sensor, or a vehicle speed sensor such as a vehicle speed pulse sensor. The traffic information receiver 6 is a device that receives traffic information that is broadcast over a wide area by FM multiplex broadcasting or the like and traffic broadcast that is transmitted by a beacon from a roadside device. Is expressed.

  Then, the navigation device 1 uses a map data storage unit 11 that is a storage device such as a DVD drive or HDD that stores map data representing a map, a current state calculation unit 12, a GUI using the operation unit 2 and the display device 3 as a user. A GUI control unit 13, a route search unit 14, a memory 15, a control unit 16, and a guidance image generation unit 17.

  However, the above navigation apparatus 1 may be a computer having a general configuration including peripheral devices such as a microprocessor, a memory, and other graphic processors and geometric processors in terms of hardware. In this case, each unit of the navigation device 1 described above may be realized as a process embodied by a microprocessor executing a program prepared in advance. In this case, such a program may be provided to the navigation apparatus 1 via a recording medium or an appropriate communication path.

Now, in such a configuration, the current state calculation unit 12 of the navigation device 1 repeatedly performs the following processing.
That is, the current state calculation unit 12 has a current position estimated from the outputs of the vehicle state sensor 4 and the GPS receiver 5 and the vicinity of the previously determined current position indicated by the map data read from the map data storage unit 11. A map matching process with the map is performed, and the most likely coordinates as the current position and the most likely direction as the current traveling direction are determined as the current position and the current traveling direction, respectively, and set in the memory 15.

  The control unit 16 accepts a destination setting from the user via the operation unit 2 and the GUI control unit 13 in response to a user destination setting request, and sets the destination setting in the memory 15. Then, after receiving the destination setting, the control unit 16 causes the route search unit 14 to search for a guidance route to the destination set in the memory 15 if a route search is instructed by the user.

The route search unit 14 reads out map data of a necessary geographical range from the map data storage unit 11, and uses a predetermined search algorithm to find a suitable route from the current position set in the memory 15 to the destination. The search is performed in consideration of the traffic jam condition indicated by the traffic information received by the.
The control unit 16 sets the route searched by the route search unit 14 as the guidance route, and sets the route data of the guidance route in the memory 15. The control unit 16 also determines that the current position set in the memory 15 is the destination. If it is close, it is determined that the destination has arrived, and the destination and the guidance route set in the memory 15 are cleared.

The control unit 16 repeats the following guide image generation process.
That is, the control unit 16 determines the display direction so that the current traveling direction set in the memory 15 or the north direction is on the upper side, and determines the map scale according to the user setting or initial setting made in advance. Then, a geographical range having a predetermined size determined according to the determined display orientation and the determined map scale around the current position with reference to the current position is determined as the map display range.

  Then, the guide image generation unit 17 generates a guide image in which a current position mark representing the current position set in the memory 15 on the map is drawn on a map based on the map data in the determined map display range. Make it. Further, when the route data of the guidance route is set in the memory 15, the control unit 16 causes the guidance image generation unit 17 to draw a guidance route graphic representing the guidance route on the map in the guidance image. In addition, when the destination set in the memory 15 is included in the map display range, the control unit 16 causes the guide image generation unit 17 to draw a destination mark representing the destination on the map in the guide image.

On the other hand, the guide image generation unit 17 generates the guide image by performing the above drawing under the control of the control unit 16, and displays the guide image on the display device 3 via the GUI control unit 13.
Further, when the route data of the guidance route is set in the memory 15, the control unit 16 increases the passing point on the guidance route closer to the destination side than the current position and the name of the destination point from the bottom in the order of passage. The passing point list arranged in the above is created and displayed on the display device 3 in a form of being superimposed on the guide image via the GUI control unit 13.

Note that the control unit 16 also performs processing for displaying the map orientation and scale of the guide image on the guide image, and displaying buttons used for receiving user operations.
FIG. 2 shows a guide image and a passing point list displayed on the display device 3 in this way.
As shown in the figure, the guide image 200 displays a current position mark 202 representing the current position and a guidance route graphic 203 representing the guidance route on a map image 201 representing a map within the map display range that is a range around the current position. Will be.
In addition, the illustrated guide image 200 is a case where a display orientation with the north direction as an upper side is set.

Next, when there is no traffic jam on the guidance route, the control unit 16 displays the passing point list 250 in the normal display form, and when there is traffic jam on the guidance route, the control point 16 The list 250 is displayed in a traffic information display form or a bypass implied display form.
FIG. 2 shows a passing point list 250 in a normal display form, and the passing point list 250 in the normal display form has a plurality of name boxes 260 arranged vertically on a strip-like guide route simulated figure 270 that is straight up and down. Is. Here, each name box 260 is paired with each guide point, with one or more points selected from the passing points from the current position to the destination as the guide points. The name boxes 260 are arranged from the bottom to the top in the order of passage. In each name box 260, a spot name 261 of the corresponding spot is displayed. Also, in the passing point list 250 in the normal display form, the name boxes 260 are arranged on the guidance route simulation figure 270 at equal intervals in the vertical direction.

  Here, in this embodiment, as a guide point for providing the name box 260 of the passing point list 250 in the normal display form, in addition to the destination, between the current position and the destination, an automobile-only road such as an expressway is provided. Select the interchange to use for getting on and off. Also, in each name box 260, an IN / OUT icon 262 indicating whether the interchange, which is a corresponding point, is a point used for entry into the car road is a point used for exiting the car road. Also try to arrange.

Note that the passing point list 250 in the traffic information display form and the detour implied display form will be described later.
Hereinafter, a new route presentation process performed by the control unit 16 in such a configuration will be described.
FIG. 3 shows the procedure of the new route presentation process.
As shown in the figure, the control unit 16 monitors the reception of traffic information by the traffic information receiver 6 (step 302). If the traffic information receiver 6 receives the traffic information, the guide route is derived from the received traffic information. It is determined whether or not there is a traffic jam section above (step 304).
If no congestion section has occurred on the guidance route (step 304), the process returns to the monitoring in step 302.
On the other hand, when a traffic jam section has occurred on the guidance route (step 304), the display of the passing point list 250 is changed to the traffic information display form (step 306).
Here, the passing point list 250 in the traffic information display form is wider than the passing point list 250 in the normal display form shown in FIG. It is assumed that a traffic information graphic representing the occurrence of a traffic jam is displayed on the guidance route simulation graphic 270 between the name boxes 260 of points before and after the section.

  That is, in step 306, for example, as shown in FIG. 2, in the state where the Tamagawa interchange and the Kohoku interchange are adjacent to each other on the passing point list 250, there is a traffic jam section between the Tamagawa interchange and Kohoku interchange on the guidance route. When it occurs, as shown in FIG. 4, the interval between the Tamagawa interchange name box 260 and the Kohoku interchange name box 260 in the passing point list 250 is expanded vertically above the interval in the normal display form of FIG. A passing point list 250 representing a traffic information figure 401 representing a traffic jam section at a position between the Tamagawa interchange name box 260 and the Kohoku interchange name box 260 on the guidance route simulation figure 270 is displayed as a passing point in the traffic information display form. A list 250 is displayed.

Returning to FIG. 3, next, the route search unit 14 is searched for a route from the current position to the destination in consideration of traffic jam conditions inside and outside the guidance route represented by the received traffic information (step 308).
Then, it is determined whether or not the current guidance route from the current position to the destination is different from the searched route (step 310), and if not, a predetermined time (for example, 30 seconds) is determined. Waiting for the passage (step 332), the display of the passing point list 250 is returned to the display of the passing point list 250 in the normal display form (step 334), and the process returns to the monitoring of step 302.

On the other hand, if the current guidance route from the current position to the destination is different from the searched route (step 310), the display of the passing point list is updated to the display of the bypass implied display form ( Step 312).
As shown in FIG. 5, the passing point list in the detour-implied display form is a traffic in which an interchange serving as a branching point between the guide route and the searched route is added to the guide point when traveling from the current position toward the destination. It is assumed that a detour suggestion figure 501 indicating the existence of a route branching from the guidance route starting from the branch point is added to the passing point list 250 in the information display form.

  That is, in step 312, for example, when a route branching from the guidance route at the Tsuzuki interchange between the Tamagawa interchange serving as the guide point and the Kohoku interchange is searched, as shown in FIG. The Tsuzuki Interchange name box 260 is added to the passing point list 250 in the traffic information display form shown in FIG. 4, and after the Tsuzuki Interchange name box 260 is branched from the guidance route simulated figure 270 in the horizontal direction. A passing point list to which a band-like detour suggestion graphic 501 directed in the direction is added is displayed as a passing point list in a detour implied display form. Note that an icon (IC) 502 representing an interchange is used in place of the IN / OUT icon 262 as the icon 262 in the interchange name box 260 serving as a branch point.

  Next, the current guidance is displayed on the map in the map display range determined to include all the differences between the current guidance route and the searched route, as shown in FIG. A new route presentation image representing the route 511 and the searched route 512 is generated and displayed on the display device 3 instead of the guide image 200 (step 314).

  Here, the map range of the new route presentation image may be the minimum range including all the differences between the current guidance route and the searched route, or the guidance route from the current position to the destination and the searched route. It may be the minimum range including all of the above, or includes all of the searched route and the route of the searched route from the junction of the searched route and the searched route to the junction or the destination of the searched route and the destination route A minimum range may be used. In either case, the map range of the new route presentation image is displayed on the entire scale of the display device, and the map of the new route presentation image is displayed.

  Then, a timer with a predetermined timeout time (for example, 30 seconds) is started (step 316), the passage of the current position at the branch point between the guidance route and the searched route is generated (step 318), and the timer The occurrence of a timeout (step 320) and the occurrence of a user route change operation (step 324) are monitored.

  If the current position of the branch point between the guidance route and the searched route passes (step 318) or the timer times out (step 320), the display of the passing point list 250 is shown in FIG. The display of the passing point list 250 in the normal display form is returned (step 336), the display on the display device 3 is returned to the display of the guide image 200 in the guide image generator 17 (step 338), and the monitoring of step 302 is performed. Return.

  On the other hand, when a route change operation from the user occurs (step 324), the guide route is updated to the searched route (step 326), and the passing point list 250 in the normal display form of the updated guide route is generated. Then, the display of the passing point list 250 is updated to the display of the passing point list 250 in the normal display form (step 328), and the display on the display device 3 is returned to the display of the guide image 200 in the guide image generating unit 17. (Step 330), the process returns to the monitoring in Step 302. The route change operation from the user may be performed by, for example, the name box 260 of the guidance route on the passing point list 250 and the branch point of the searched route (“Tsuki interchange” in FIG. 5) or the icon 502 of the name box 260. Alternatively, it is accepted according to the user's selection operation of the alternate route implied figure 501.

The new route presentation process performed by the control unit 16 has been described above.
As described above, according to the present embodiment, when a traffic jam section occurs on the current guidance route, a new route is automatically searched and the point name 261 of the passing point on the guidance route to the destination is obtained. Using the passing point list arranged in the order of passage, present to the user in a form that allows the user to immediately know that the searched new route exists and from which point on the guidance route the new route branches. can do.

By the way, in the above embodiment, the passing point list 250 is always displayed. However, the passing point list 250 in the normal display form is not displayed or is switched according to the user setting. Also good.
In the above embodiment, the interchange used for getting on and off the motorway on the guidance route is selected as a guide point other than the destination. However, as the guide point other than the destination, a route such as a right or left turn on the guide route is selected. You may make it use arbitrary points, such as the intersection which changes, and the main / famous point on a guidance route.

  DESCRIPTION OF SYMBOLS 1 ... Navigation apparatus, 2 ... Operation part, 3 ... Display apparatus, 4 ... Vehicle state sensor, 5 ... GPS receiver, 6 ... Traffic information receiver, 11 ... Map data storage part, 12 ... Current state calculation part, 13 ... GUI control unit, 14 ... route search unit, 15 ... memory, 16 ... control unit, 17 ... guide image generation unit, 200 ... guide image, 201 ... map image, 202 ... current position mark, 202 ... guide route figure, 250 ... Passage point list, 260 ... name box, 261 ... point name, 262 ... icon, 270 ... guidance route simulation figure, 401 ... traffic information figure, 501 ... detour suggestion figure.

Claims (6)

A navigation device that guides driving along a guidance route,
A display device;
A traffic information receiving device for receiving traffic information representing a traffic jam section;
Current position calculating means for calculating the current position;
A guidance route calculating means for searching for a suitable route to a destination in consideration of a traffic jam section represented by the traffic information received by the traffic information receiving device and setting the guidance route;
Guidance image display means for displaying on the display device a guidance image representing the current position and the guidance route on a map including the current position;
The point of the guide point selected from among the points on the guide route that are arranged in the order of passing along the road simulated figure and the road simulated figure that is a straight belt-like figure and that is on the destination route side of the destination side from the current position Passing point list display means for displaying a passing point list including a name on the display device;
When the traffic information received by the on-traffic receiving device indicates that there is a traffic jam section on the guidance route, a new purpose considering the traffic jam section represented by the received traffic information on the guidance route calculation means In addition to searching for a suitable route to the ground as a new route, the passing point list is displayed as the passing point list in the passing point list in addition to the road simulation figure and the point name. New route implied display form which is a passing point list including a new route implied figure which is a figure having a shape branched from the road simulated figure starting from the arrangement position of the point name of the branch point between the new route and the guidance route And a new route presenting means for displaying a list of passing points. The navigation device according to claim 1,
If the branch point is not included in the guide point, the new route presenting unit causes the passing point list display unit to add the branch point to the guide point and then indicate the new route. A navigation device characterized by displaying a form passing point list. The navigation device according to claim 1 or 2,
The new route presenting means displays the guide points before and after the traffic jam section in addition to the road simulation figure, the point name and the new route suggestion figure as a passing point list in the new route implied display form on the passing point list display means. A navigation apparatus that displays a passing point list of the new route implied display form including a traffic jam section graphic representing a traffic jam section arranged at a position between the spot names. The navigation device according to claim 1, 2, or 3,
When the traffic information received by the on-traffic receiving device indicates that there is a traffic jam section on the guidance route, the new route presenting unit, the guidance image display unit, the guidance image display unit, Instead of the guide image, a new route representing at least the guidance route and a portion of the new route that is different from the guidance route on a map that includes at least a portion of the new route that is different from the guidance route. A navigation device that displays a guidance image on the display device. The navigation device according to claim 1, 2, 3 or 4,
Navigation having a guide route update means for updating the guide route to the new route according to a predetermined operation by a user during a period when the passing point list in the new route implied display form is displayed. apparatus. A computer program that is read and executed by a computer comprising a display device and a traffic information receiving device that receives traffic information representing a traffic jam section,
The computer,
Current position calculating means for calculating the current position;
A guidance route calculation means for searching for a suitable route to a destination in consideration of a traffic jam section represented by the traffic information received by the traffic information receiving device and setting it as a guidance route;
Guidance image display means for displaying on the display device a guidance image representing the current position and the guidance route on a map including the current position;
The point of the guide point selected from among the points on the guide route that are arranged in the order of passing along the road simulated figure and the road simulated figure that is a straight belt-like figure and that is on the destination route side of the destination side from the current position Passing point list display means for displaying a passing point list including a name on the display device;
When the traffic information received by the on-traffic receiving device indicates that there is a traffic jam section on the guidance route, a new purpose considering the traffic jam section represented by the received traffic information on the guidance route calculation means In addition to searching for a suitable route to the ground as a new route, the passing point list is displayed as the passing point list in the passing point list in addition to the road simulation figure and the point name. New route implied display form which is a passing point list including a new route implied figure which is a figure having a shape branched from the road simulated figure starting from the arrangement position of the point name of the branch point between the new route and the guidance route A computer program that functions as a new route presenting means for displaying a list of passing points.