JP2016090273A - Information processing system, information processing method, and information processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing system that can increase, during guidance of a route, the degree of freedom for a user who desires to travel on a route other than said route to select a route, without requiring a special operation by the user.SOLUTION: An information processing system searches for a basic route to a destination on the basis of predetermined route searching conditions, searches for another route and non-recommended route different from the basic route according to the predetermined route searching conditions during guidance of the basic route, and displays the routes on a map on a display screen in a different display mode.SELECTED DRAWING: Figure 5

Description

  The present application relates to an information processing system that guides a route to a destination.

  Conventionally, a navigation device acquires traffic jam information and searches for a detour for avoiding traffic jams, or acquires one-way information, right / left turn prohibition information, and the like to search for a route according to traffic rules. In addition, the information about the three-dimensional intersection is acquired, and the route is searched after determining whether or not the route that cannot be determined by the user can be determined only by the map. The user can reach the destination by moving along the route searched by the navigation device.

  However, some users want to travel to a destination through a route other than the route searched by the navigation device. Such a user can move without using the route search function of the navigation device, but if he / she wants to avoid the traffic jam ahead of time, he / she can search the route or move on the map. There is also a case where a route search is performed because it is anxious whether or not to turn right or left. Such a user uses the route search function and moves while ignoring the searched route.

  On the other hand, Patent Document 1 discloses a technique related to an auto-reroute function that automatically re-searches a route to a destination when a user moves a route other than the route searched by the navigation device.

  Patent Document 2 discloses a technique for re-searching a route passing through another road by dragging the route after setting the route.

JP 2011-038941 A JP 2012-189408 A

  However, in the technique described in Patent Document 1, when the user moves off the route, the navigation device moves on the road outside the route while the navigation device re-searches the route. There is a possibility that the user may feel uneasy about whether or not it is no problem to move the road as it is (whether it is moving on a misplaced road or it may get stuck in a traffic jam).

  Moreover, in the technique described in Patent Document 2, the user must perform a drag operation in order to search for a route again, and there is a danger when driving.

  On the other hand, when the route selected as a search result by the navigation device is a route that makes a detour at a glance, the user ignores the search result if the user does not know why the route was selected as the search result. Sometimes it tries to move.

  In view of such circumstances, the present invention is an information processing system capable of presenting a non-recommended route that is not selected as a search result, and does not require any special operation by the user, and a route other than the route is being moved during route guidance. It is an object of the present invention to provide an information processing system and the like that can improve the degree of freedom in selecting a route for a user who desires.

  The invention according to claim 1 is different from the basic route in the first search means for searching for a basic route to the destination according to a predetermined route search condition, or a location that obstructs traffic on the route to the destination or A second search means for searching for a non-recommended route including a location that causes a delay in traffic, and at least a part of the basic route and at least a part of the non-recommended route on a map on a display screen are displayed differently. And a display control means for displaying.

  The invention according to claim 10 is an information processing method by an information processing system, and is different from the basic route in a first search step for searching a basic route to a destination according to a predetermined route search condition, and the destination A second search step of searching for a non-recommended route including a location that hinders traffic on the route or a location that causes a delay in traffic, and at least a part of the basic route on the map on the display screen and the non-recommended A display control step of displaying at least a part of the route in a different display mode.

  According to the eleventh aspect of the present invention, unlike the basic route, the first search means for searching the computer for a basic route to the destination in accordance with a predetermined route search condition, and obstructs traffic on the route to the destination. Second search means for searching for a non-recommended route including a location or a location that causes a delay in traffic, and displaying at least a portion of the basic route and at least a portion of the non-recommended route on a map on a display screen It is characterized by functioning as display control means for displaying in an aspect.

1 is a block diagram of an information processing system 1. FIG. It is a figure which shows the example of a screen in an Example. It is a figure which shows the example of a screen in an Example. It is a block diagram of the navigation apparatus NV. It is a flowchart which shows the operation example of the navigation apparatus NV. It is a flowchart which shows the operation example of the navigation apparatus NV. It is a figure which shows the example of a screen in a modification. It is a figure which shows the example of a screen in a modification.

  An embodiment for carrying out the present invention will be described with reference to FIG.

  As shown in FIG. 1, the information processing system 1 includes first search means 111A, second search means 111B, third search means 111C, display control means 111D, and reason specifying means 111E.

  In this configuration, the first search unit 111A searches for a basic route to the destination according to a predetermined route search condition.

  Unlike the basic route, the second search unit 111B searches for a non-recommended route including a location that hinders traffic on the route to the destination or a location that causes a delay in traffic. Locations that obstruct traffic include, for example, locations where construction is being performed, locations where traffic is restricted, and one-way streets. Further, the places that cause traffic delays are, for example, places where traffic congestion has occurred and bottlenecks (intersections, railroad crossings, bridges, width reduction / lane reduction locations, etc.) that cause traffic congestion.

  The third search means 111C searches for another route different from the basic route according to a predetermined route search condition during guidance of the basic route. At this time, it is preferable that the third search unit 111C searches for a plurality of different routes in order to further increase the degree of freedom of route selection. Further, the third search means 111C selects, as a search result, another route that is within a certain range compared to the travel cost when the travel cost to the destination travels on the basic route. Furthermore, the third search unit 111C further searches for another route at least at every timing when a predetermined time elapses or every time a branch point on the basic route is passed. Furthermore, the third search means 111C selects a larger number of different routes as a search result as the frequency of detecting that the route has deviated from the basic route and moved on another route is higher.

  The first search means 111A and the third search means 111C, when searching for a basic route or another route, according to a conventionally known route search technique, traffic jam information, one-way information, right / left turn prohibition information, time regulation information, three-dimensional information An appropriate route is searched based on information about intersections.

  The display control unit 111D displays at least a part of the basic route, at least a part of the different route, and at least a part of the non-recommended route on the map on the display screen in different display modes. At this time, the display control unit 111D displays at least a part of the basic route, at least a part of the different route, and at least a part of the non-recommended route in different colors or different patterns. In addition, when it is detected that the current location is located on any other route, the display control unit 111D changes the color of the different route from a color indicating the different route to a color indicating the basic route. Change and display.

  The reason specifying unit 111E specifies the reason for non-recommendation for the non-recommended route searched by the second search unit 111B. At this time, the display control unit 111D displays the reason for non-recommendation on the display screen in association with the non-recommended route.

  As described above, according to the operation of the information processing system 1 according to the embodiment, a non-recommended route that is not selected as a search result can be presented. In addition, during the guidance of the basic route, another route different from the basic route searched according to the predetermined route search condition is displayed in a different display mode as in the case of the basic route. It is possible to improve the degree of freedom in selecting a route for a user who desires to move the route. Further, according to the information processing system 1 according to the embodiment, since a special operation for presenting another route is not required, for example, it is safe and suitable for a driving user.

  Next, specific examples corresponding to the above-described embodiments will be described.

  Examples will be described with reference to FIGS. In addition, the Example described below is an Example at the time of applying this invention to a navigation apparatus (an example of "information processing system").

[1. Overview of navigation device NV]
The navigation device NV searches for a route from the departure point to the destination by a conventionally known method when the departure point (for example, the current location) and the destination are input. At this time, the navigation device NV searches the route for each route search condition such as “highway priority”, “toll road priority”, “general road priority”, “distance priority”, and presents each route. Then, the navigation device NV selects the route selected by the user and the route search condition (the fact that one route is selected from the routes searched for each route search condition indicates that the route search condition corresponding to the route is selected. Can be interpreted as selected).

  In addition, the navigation device NV provides another route presentation function in addition to the route being guided (an example of “basic route”; hereinafter, sometimes referred to as “route being guided”) during route guidance. Is provided. Specifically, the navigation device NV searches for another route (an example of “another route”) different from the route being guided in accordance with the route search condition previously selected by the user during route guidance, At the same time, it is highlighted on the map in different display modes (different colors, patterns, etc.). At this time, by searching for another route according to the route search condition selected by the user, it is possible to prevent a route not desired by the user from being searched and displayed.

  FIG. 2 is a diagram showing a state in which the guiding route 511 and the different routes 512A and 512B are highlighted in different display forms on the map on the display screen 500 of the display device. On the display screen 500, a guidance route 511 is displayed together with a current location icon 501 indicating the current location of the navigation device NV (the current location of the vehicle moving with the navigation device NV). The display screen 500 displays a plurality of different routes 512A and 512B. The user can grasp the current location and the route the user is moving from the current location icon 501 on the display screen 500. In addition to the guiding route 511 that travels diagonally to the left on the intersection (branch point) as a route for reaching the destination from the display screen 500, the user travels straight on the intersection (branch point) 512A. And it can grasp | ascertain that the separate path | route 512B which turns left at an intersection (branch point) exists.

Here, a method in which the navigation device NV searches for another route will be described. The navigation device NV searches for and selects another route by calculating the total movement cost of each route using the following various parameters.
[Parameter 1: Estimated arrival time]
The earlier the estimated arrival time, the lower the travel cost, and the later the estimated arrival time, the higher the travel cost.
[Parameter 2: Distance traveled]
The shorter the travel distance, the lower the travel cost, and the longer the travel distance, the higher the travel cost.
[Parameter 3: Traveling charges (total tolls on toll roads)]
The lower the travel fee, the lower the travel cost, and the higher the travel fee, the higher the travel cost.
[Parameter 4: Number of left / right turns]
The smaller the number of right / left turns, the lower the movement cost, and the higher the number of right / left turns, the higher the movement cost.
[Parameter 5: Number of times of getting on and off the expressway]
The smaller the number of times of getting on and off the highway, the lower the moving cost.

  The navigation device NV presents to the user a route whose total travel cost is less than or equal to the threshold calculated by “(100 ± α)%” of the searched route as a separate route with respect to the travel cost of the route being guided. To do. α may be arbitrarily set by the user. Note that a user who wants to travel on various roads even if the total travel cost is high can receive, for example, a detour route by setting the threshold value to 100 or more. On the other hand, the user who arrives at the destination earlier may set the threshold value to 100 or less.

  In addition, when there are many routes below the threshold, the number of routes to be presented can be limited to n or less. n may be set by the user, or may be set by the navigation device NV. The navigation device NV according to the present embodiment searches and presents more different routes as the frequency at which it is detected that the route has deviated from the route being guided and moved along another route is higher. Note that the navigation device NV detects that the route has been deviated from the route being guided and moved by another conventionally known method, counts the number of times the route has been deviated from the route being guided and moved by another route, and is stored in the storage device. It shall be remembered. By searching for another route using the above parameters, a route that returns to the original route by repeatedly making unnecessary left and right turns, a route that repeats uselessly high-speed getting on and off, or a route that is guiding is using a general road However, it is possible to prevent presenting a route using the highway. However, for routes that have a significantly faster arrival time, a route using an expressway may be presented while guiding a general road.

  In addition to the separate route presentation function, the navigation device NV of the present embodiment is an example of a route that has not been presented to the user (not selected as a search result) (an “unrecommended route”). In some cases, a non-recommended reason presentation function for presenting a non-recommended reason that was not presented is provided. In addition, the navigation apparatus NV of a present Example shall show a reason for non-recommendation about a non-recommended route and the route where the travel distance to a destination is shorter than a guidance route and another route. However, it does not deny that a reason for deprecation is presented for a route that has a longer travel distance to the destination than the route being guided and another route. In a conventional navigation device, even when route search conditions such as “distance priority” and “time priority” are specified, the shortest route (or a route close to the shortest route) on the map is not necessarily searched and presented. There are various reasons for this. For example, a route such as a road that cannot be traveled due to one-way traffic, time restrictions, construction, or the like, or a road that has a traffic jam or a level crossing and requires a long time to pass is not presented to the user. However, if the user does not know the reason why the shortest route on the map is not presented, the user may feel frustrated that the user wants to move along the shortest route or that the shortest route is not presented. Therefore, the navigation device NV presents a reason for non-recommendation for at least a part of a route that is a non-recommended route and has a shorter travel distance to the destination than the route being guided and another route.

  FIG. 3 is a diagram illustrating a state in which the reason for non-recommendation is displayed on the display screen of the display device for non-recommended routes that are shorter than the guidance route and a route that is shorter than the other route. The display screen 500 displays a non-recommended route 513 in addition to the current location icon 501, the guiding route 511, and the different routes 512 </ b> A and 512 </ b> B. At this time, the non-recommended route 513 is displayed in a different color or displayed with a pattern so that it can be seen at a glance that the route is not being guided or another route. The display screen 500 also displays an entry prohibition icon 514 indicating that one of the reasons why the non-recommended route 513 is not selected as the guidance route 511 or the different routes 512A, 512B is entry prohibition (one-way). Is done. Based on the entry prohibition icon 514 displayed in association with the non-recommended route 513 on the display screen 500, the user cannot enter the route 511 or another route because the non-recommended route 513 is prohibited (one-way or right / left turn is prohibited). It can be known that the routes 512A and 512B are not displayed. In addition, the display mode of the non-recommended route 513 may be displayed in a display mode different from the guidance-in-progress route 511 and the different routes 512A and 512B without displaying the icon indicating the reason for non-recommendation. Further, an icon indicating the reason for non-recommendation may be displayed, and the display mode of the non-recommended route 513 may be displayed in a display mode different from the guidance route 511 and the different routes 512A and 512B. As a result, the user does not try to move the shortest route forcibly and does not feel frustrated that the shortest route is not presented, thereby improving safety during movement.

  Here, a method for the navigation device NV to identify the reason for non-recommendation for the non-recommended route will be described. The navigation device NV searches for the route without considering the traffic jam based on the traffic jam information, and specifies that the non-recommended route whose expected arrival time is earlier than the estimated arrival time of the route being guided was not selected due to traffic jam. To do. In addition, the navigation device NV performs a route search without considering the time restriction based on the time restriction information, and a non-recommended route whose expected arrival time is earlier than the estimated arrival time of the route being guided is selected for time restriction. Identify what did not happen. In this way, by searching for a route without using functions associated with deprecation reasons such as a traffic jam consideration function and a time restriction consideration function, a non-recommended route where the estimated arrival time is earlier than the estimated arrival time of the route being guided, Identify reasons for deprecation. Here, as an example, the case where the reason for non-recommendation is a traffic jam or time regulation has been described, but other reasons for non-recommendation for accidents or construction can also be specified by the same method. Further, the navigation device NV replaces the destination and the starting point (or the current location) (that is, the destination is set as the starting point and the starting point (the current location) is set as the destination), and as a result of performing a route search in the reverse direction, A non-recommended route whose estimated arrival time is earlier than the estimated arrival time of the route being guided is specified because it is not selected due to prohibition of one-way traffic or right / left turn. Furthermore, if there are places on the route that take time to pass (bottlenecks such as traffic jams, bridges, railroad crossings, etc.), it is not recommended for routes that return to the route being guided before the bottleneck is exceeded. Identify that you were not selected because you can't go over the bottleneck.

[2. Configuration of navigation device NV]
Next, the configuration of the navigation device NV according to the present embodiment will be described.

  As shown in FIG. 4, the navigation device NV includes a control unit 211, a storage device 212 including an HDD, an input device 213 including a keyboard or a remote controller, a touch panel, a display unit 214, a bus line 215, An input / output interface unit 220, a vehicle speed sensor 221, an angular velocity sensor 222, an acceleration sensor 223, a steering angle sensor 224, a GPS (Global Positioning System) reception unit 225, and a data transmission / reception unit 226 are configured. Yes.

  The vehicle speed sensor 221 detects the current speed of the vehicle using, for example, a speed detection process using a vehicle speed pulse acquired from a vehicle on which the navigation device NV is mounted, and outputs speed data. The angular velocity sensor 222 detects, for example, the angular velocity of the direction change of the vehicle, and outputs angular velocity data and relative azimuth data per unit time. The acceleration sensor 223 detects, for example, the longitudinal acceleration of the vehicle, and outputs acceleration data per unit time. The steering angle sensor 224 detects the steering angle of the vehicle and outputs steering angle data and the like. The GPS receiving unit 225 receives navigation radio waves from GPS satellites, and outputs latitude, longitude, altitude data, which is vehicle position information, absolute azimuth data in the traveling direction of the vehicle, GPS speed data, and the like as GPS positioning data. The data transmission / reception unit 226 performs processing related to data transmission / reception with the server device via the network. For example, real-time traffic information such as traffic jam information and accident information is received.

  The storage device 212 stores map image data for displaying a map on the display unit 214, map information used when searching for a route, road link information, and the like. The storage device 212 stores various programs such as an operating system and application programs including a navigation program. Further, the storage device 212 stores the parameter and the movement cost in association with each type of parameter for calculating the total movement cost of the route to the destination. Various programs may be acquired from a server device or the like via a network, for example, or may be read from a recording medium such as a CD, DVD, or USB memory.

  The input device 213 includes a touch panel, a keyboard, a mouse, other controllers, and the like. The input device 213 receives a user input operation and transmits an operation signal indicating the operation content to the control unit 211.

  The display unit 214 displays various display data under the control of the control unit 211. The display unit 214 includes a graphics controller 214a, a buffer memory 214b including a memory such as a VRAM (Video RAM), a display 214c including a liquid crystal display, and the like. In this configuration, the graphics controller 214 a controls the entire display unit 214 based on control data sent from the control unit 211 via the bus line 215. The buffer memory 214b temporarily stores image information that can be displayed immediately. Based on the image data output from the graphics controller 214a, an image is displayed on the display 214c.

  The control unit 211 includes a CPU 211a that controls the entire control unit 211, a ROM 211b that stores a control program for controlling the control unit 211, and a RAM 211c that temporarily stores various data. The control unit 211 is connected to the vehicle speed sensor 221, the angular velocity sensor 222, the acceleration sensor 223, the steering angle sensor 224, and the GPS reception unit 225 via the bus line 215 and the input / output interface unit 220, and is output from each of them. Based on the speed data, angular velocity data and relative azimuth data, steering angle data, GPS positioning data, absolute azimuth data in the traveling direction of the vehicle, acceleration data, etc., the navigation device 1 is controlled as a whole, and various display units 214 and the like are controlled. Control each operation in the component. In addition to the normal route search function, the control unit 211 executes processing for realizing another route presentation function and a deprecation reason presentation function.

[3. Example of operation of navigation device NV]
Next, an operation example when the control unit 211 of the navigation device NV performs a process for realizing another route presentation function will be described using the flowchart of FIG. Note that the processing shown in FIG. 5 is performed every time a predetermined time (for example, 1 or 2 minutes) elapses during guidance of a route toward the destination, every time a branch point on the route is passed, or the processing When it is detected that the current location (current location calculated from GPS positioning data, etc.) is located on another route selected by (i.e., when the route is moved away from the route being guided), This is executed at least at any timing.

  First, the control unit 211 of the navigation device NV searches for another route different from the route being guided (step S11). Specifically, the control unit 211 stores the route search condition initially selected by the user in the storage device 212, and searches for another route according to the route search condition stored in the storage device 212. Explore. In addition, the control part 211 searches a path | route for every path | route search condition, when a departure place and a destination are input at the time of departure, and each route is shown. And the control part 211 shall memorize | store the route search conditions corresponding to the path | route which the user selected from them in the memory | storage device 212 as a route search condition which the user initially selected.

  Next, the control unit 211 calculates the total movement cost of another route searched in the process of step S11 (step S12). Specifically, the control unit 211 refers to the storage device 212 and corresponds to the travel cost corresponding to the estimated arrival time, the travel cost corresponding to the travel distance, the travel cost corresponding to the travel fee, and the number of right / left turns. The total movement cost is calculated by adding the movement cost and the movement cost corresponding to the number of times of getting on and off the expressway.

  Next, the control unit 211 determines whether or not the ratio of the total movement cost of another route calculated in the process of step S12 to the total movement cost of the currently guided route at that time is equal to or less than a threshold (step S13). ). At this time, if the control unit 211 determines that the ratio of the total travel cost of the other route to the total travel cost of the route being guided is not less than the threshold (step S13: NO), the control unit 211 proceeds to the process of step S15. On the other hand, when the control unit 211 determines that the ratio of the total travel cost of the other route to the total travel cost of the route being guided is equal to or less than the threshold (step S13: YES), the other route searched in the process of step S11. Is temporarily stored in the storage device 212 in association with the total movement cost calculated in the process of step S12 (step S14).

  Next, the control unit 211 determines whether or not another route that can be searched exists (is left) (step S15). At this time, if the control unit 211 determines that there is another path that can be searched (step S15: YES), the control unit 211 proceeds to the process of step S11 and repeats the process of step S11 to step S15. On the other hand, if the control unit 211 determines that there are no other routes that can be searched (step S15: NO), the control unit 211 selects n different routes with a low total travel cost from the routes temporarily stored in the storage device 212. Then, it is highlighted on the map on the display screen of the display 214c (step S16), and the process shown in the flowchart is terminated.

  Next, an operation example when the control unit 211 of the navigation device NV performs processing for realizing the deprecation reason presentation function will be described using the flowchart of FIG. Note that the process illustrated in FIG. 6 is a process executed in parallel with the process illustrated in FIG. 5, for example.

  First, the control unit 211 of the navigation device NV searches for a route from the current location to the destination without considering traffic congestion (step S31).

  Next, the control unit 211 determines whether or not the estimated arrival time of the route searched in the process of step S31 is earlier than the route being guided (step S32). At this time, when the control unit 211 determines that the estimated arrival time of the route searched in the process of step S31 is not earlier than the route being guided (step S32: NO), the control unit 211 proceeds to the process of step S34. . On the other hand, if the control unit 211 determines that the estimated arrival time of the route searched in the process of step S31 is earlier than the route being guided (step S32: YES), it is displayed on the map on the display screen of the display 214c. The route searched in the process of step S31 is displayed as a non-recommended route, and it is displayed that the reason for deprecation is due to traffic jam (step S33), and the process proceeds to step S34. For example, the control unit 211 displays an icon or text indicating traffic jam on the non-recommended route in the process of step S33.

  Next, the control unit 211 of the navigation device NV searches for a route from the current location to the destination without considering time regulation (step S34).

  Next, the control unit 211 determines whether or not the estimated arrival time of the route searched in step S34 is earlier than the route being guided (step S35). At this time, if the control unit 211 determines that the estimated arrival time of the route searched in step S34 is not earlier than the route being guided (step S35: NO), the process proceeds to step S37. . On the other hand, if the control unit 211 determines that the estimated arrival time of the route searched in the process of step S34 is earlier than the route being guided (step S35: YES), it is displayed on the map on the display screen of the display 214c. The route searched in the process of step S34 is displayed as a non-recommended route, and it is displayed that the reason for non-recommendation is due to time restriction (step S36), and the process proceeds to step S37. For example, the control unit 211 displays an icon or text indicating time restriction on the non-recommended route in the process of step S36.

  Next, the control unit 211 of the navigation device NV searches for a route from the destination to the current location (step S37).

  Next, the control unit 211 determines whether or not the estimated arrival time of the route searched in the process of step S37 is earlier than the route being guided (step S38). At this time, when the control unit 211 determines that the estimated arrival time of the route searched in the process of step S37 is not earlier than the route being guided (step S38: NO), the process illustrated in the flowchart is terminated. To do. On the other hand, when the control unit 211 determines that the estimated arrival time of the route searched in the process of step S37 is earlier than the route being guided (step S38: YES), the control unit 211 displays the map on the display screen of the display 214c. The route searched in the process of step S37 is displayed as a non-recommended route, and it is displayed that the reason for non-recommendation is one-way (step S39). For example, the control unit 211 displays an icon or text indicating one-way on the non-recommended route in the process of step S39. When the control unit 211 finishes the process of step S <b> 39, the control unit 211 ends the process shown in the flowchart.

  As described above, according to the operation of the navigation device NV according to the present embodiment, the control unit 211 (an example of “first search means”, “second search means”, “display control means”) The route is searched according to the predetermined route search conditions, and unlike the route being guided, a non-recommended route including a portion that obstructs traffic or causes a delay in traffic is searched on the route to the destination, and the display screen At least a part of the guidance route and at least a part of the non-recommended route are displayed in different display modes on the map.

  Therefore, according to the navigation device NV according to the present embodiment, it is possible to present a non-recommended route that is not selected as a search result. In addition, since at least a part of the guidance route and at least a part of the non-recommended route are displayed in different display modes, the user can grasp the guidance route and the non-recommended route at a glance.

  In addition, the control unit 211 (an example of “third search unit”) of the navigation device NV according to the present embodiment guides the route being guided (“basic route” according to the same predetermined route search condition during guidance of the searched route. ”Is searched for, and at least a part of the guidance route, at least a part of the different route, and at least a part of the non-recommended route are displayed in different colors or different patterns. As a result, another route different from the route being guided in accordance with the predetermined route search condition is displayed during guidance of the route being guided. The degree of freedom of route selection by a user who desires to move the route can be improved, and a special operation for presenting another route is not required, which is safe and suitable for the user during driving. Note that the control unit 211 searches for another route whose travel cost to the destination is within a certain range compared to the travel cost when traveling on the route being guided, so a route with a higher travel cost is selected. Can be prevented from being highlighted. In addition, since at least a part of the route being guided, at least a part of the different route, and at least a part of the non-recommended route are displayed in different display modes, the user can grasp the different route at a glance.

  Further, the control unit 211 of the navigation device NV according to the present embodiment displays the route being guided in a color indicating that it is a route being guided, and the color indicating that another route is another route. A color different from the color indicating the route is displayed. Thereby, the user can grasp | ascertain the route under guidance and another route at a glance. Note that the route being guided and the different route may be displayed in different patterns. For example, the guiding route may be displayed with a pattern indicating that it is a guiding route, and another route may be displayed with a pattern indicating that it is another route.

  Furthermore, when it is detected that the current location is located on any other route, the control unit 211 of the navigation device NV according to the present embodiment searches for another route using the other route as a guiding route. To do. As a result, every time the user deviates from the route being guided and moves to another route, a new route is searched for and highlighted on the basis of the route being guided. The route can be freely selected and moved from the routes searched in consideration of the above. In addition, when it is detected that the present location is located on any other route, the control unit 211 changes the other route from a color indicating the different route to a color indicating the basic route. To display. Thereby, another route selected by the user can be presented to the user as a new route being guided.

  Furthermore, the control unit 211 of the navigation device NV according to the present embodiment is at least at every timing when a predetermined time (for example, 1 or 2 minutes) elapses or every time a branch point on the guidance route is passed. Further search for another route. As a result, another route is searched and highlighted at the minimum necessary interval, and the user can freely select a route from among the routes with less traffic and traffic restrictions searched by the navigation device NV and move. be able to.

  Furthermore, the control unit 211 (an example of “reason identification unit”) of the navigation device NV according to the present embodiment identifies the deprecation reason for the non-recommended route that was not previously selected as the search result, and the non-recommended route. The reason for deprecation (icon indicating the reason for deprecation) is displayed on the display screen in association with. In addition, the display mode of the non-recommended route 513 may be displayed in a display mode different from the guidance-in-progress route 511 and the different routes 512A and 512B without displaying the icon indicating the reason for non-recommendation. Further, an icon indicating the reason for non-recommendation may be displayed, and the display mode of the non-recommended route 513 may be displayed in a display mode different from the guidance route 511 and the different routes 512A and 512B. As a result, the user can know the reason for non-recommendation on the non-recommended route on the map, does not try to move the route forcibly, and does not feel frustrated that the route is not recommended. Therefore, the safety during movement is improved.

  Furthermore, the control unit 211 of the navigation device NV according to the present embodiment selects a larger number of different routes as a search result as the frequency at which it is detected that the route has deviated from the route being guided and moved on another route is higher. As a result, many different routes can be presented to the user who often deviates from the guidance route and moves on another route, and the degree of freedom of the user's route selection can be improved.

[4. Modified example]
Next, a modification of the above embodiment will be described. Note that the modifications described below can be combined as appropriate.

[4.1. Modification 1]
The navigation device NV has a function of displaying an enlarged view of a branch point in a separate window when approaching the branch point as a conventional function. In this modified example, in this enlarged view, it is assumed that at least a part of the roads connected to the branch point is a route being guided, a different route, or a non-recommended route.

  FIG. 7 is a diagram showing a state where a normal map 500A is displayed on the left half of the display screen 500 and an enlarged view 500B is displayed on the right half. The enlarged view 500B is an enlarged view of the vicinity of the intersection 502, and is displayed when the current location approaches the predetermined range from the intersection 502. The enlarged view 500B shows that at least a part of the roads connected to the branch point is the guidance route 511, the separate routes 512A, 512B, or the non-recommended route 513. . For the non-recommended route 513, an entry prohibition icon 514 indicating the reason for non-recommendation is also displayed. This makes it easy to see which route is the guiding route 511, the separate routes 512A, 512B, or the non-recommended route 513. Further, in the enlarged view 500B, the heading-up display as shown in FIG. 7 allows the user to intuitively grasp the information on the map.

[4.2. Modification 2]
The control unit 211 may be configured to select a route that exceeds the bottleneck as another route when there is a place on the route that takes time to pass (bottleneck such as a traffic jam, a bridge, or a railroad crossing). FIG. 8 is a diagram illustrating a state in which a route that avoids a traffic jam that is a bottleneck is displayed as another route. As described above, when traffic jams occur on the guidance route 511, the user convenience is improved by presenting the different routes 512A and 512B avoiding the traffic jam location 515.

[4.3. Modification 3]
In the above embodiment, a part of the processing performed by the control unit 211 of the navigation device NV may be performed by a server device connected to the navigation device NV. For example, the server device may perform a process of searching for each route to a destination including another route or a non-recommended route, and the navigation device NV may receive the processing result and display it on the display 214c.

DESCRIPTION OF SYMBOLS 1 Information processing system 111A 1st search means 111B 2nd search means 111C 3rd search means 111D Display control means 111E Reason identification means 2 Display apparatus NV Navigation apparatus 211 Control part 211a CPU
211b ROM
211c RAM
212 storage device 213 input device 214 display unit 214a graphics controller 214b buffer memory 214c display 215 bus line 220 input / output interface unit 221 vehicle speed sensor 222 angular velocity sensor 223 acceleration sensor 224 steering angle sensor 225 GPS reception unit 226 data transmission / reception unit

Claims (8)

First search means for searching a basic route to a destination according to a predetermined route search condition;
Unlike the basic route, a second search means for searching a non-recommended route including a location that hinders traffic on the route to the destination or a location that causes a delay in traffic,
Display control means for displaying at least a part of the basic route and at least a part of the non-recommended route on a map on a display screen in different display modes;
An information processing system comprising: The information processing system according to claim 1,
A third search means for searching for another route different from the basic route according to the predetermined route search condition during the guidance of the basic route;
The third search means selects, as a search result, the another route that is within a certain range as compared to the travel cost when the travel cost to the destination travels the basic route,
The information processing system, wherein the display control means displays at least a part of the basic route, at least a part of the different route, and at least a part of the non-recommended route in different colors or different patterns. The information processing system according to claim 2,
The display control means, when it is detected that the current location is located on any of the different routes, the color indicating that the different route is the basic route from the color indicating the different route. An information processing system characterized in that it is changed to display. The information processing system according to claim 2 or 3,
The information processing system according to claim 3, wherein the third search means further searches for the another route at a timing at which a predetermined time elapses or every time a branch point on the basic route is passed. An information processing system according to any one of claims 1 to 4,
Reason identification means for identifying the deprecation reason for the deprecated route,
Further comprising
The information processing system, wherein the display control means displays the non-recommended reason on the display screen in association with the non-recommended route. An information processing system according to any one of claims 2 to 5,
The information processing system according to claim 3, wherein the third search means selects a larger number of different routes as a search result as the frequency of detecting that the third search means has deviated from the basic route and moved on the different route is higher. An information processing method by an information processing system,
A first search step of searching for a basic route to a destination according to a predetermined route search condition;
Unlike the basic route, a second search step for searching for a non-recommended route including a location that hinders traffic on the route to the destination or a location that causes a delay in traffic,
A display control step of displaying at least a part of the basic route and at least a part of the non-recommended route on a map on a display screen in different display modes;
An information processing method comprising: Computer
First search means for searching a basic route to a destination according to a predetermined route search condition;
Unlike the basic route, a second search means for searching for a non-recommended route including a location that obstructs traffic on the route to the destination or a location that causes a delay in traffic,
Display control means for displaying at least a part of the basic route and at least a part of the non-recommended route on a map in a display screen in different display modes;
An information processing program that functions as a computer program.