JP2018132414A - Mobile terminal device, display method, program and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that when a user uses a detour route, etc., there is the possibility of the distance to a destination greatly increasing as compared with a search route.SOLUTION: A mobile terminal device that is one embodiment of the present invention comprises: a search unit for searching for a route from the current position of a vehicle to a destination; a display processing unit for causing map information that includes at least a portion of the route searched by the search unit to be displayed on a display screen; and a specification unit for specifying a second road, among second roads connecting to a first road on the searched route, which satisfies a prescribed condition. The prescribed condition includes that when the vehicle enters the second road, the distance for the vehicle to reach the destination will increase, as compared with the route, due to prescribed traffic restrictions on the second road. The display processing unit causes display for avoiding the entry of the vehicle into the second road specified by the specification unit to be displayed on the display screen by being superimposed on the map information.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a mobile terminal device capable of guiding a route, a display method, a program, and a recording medium.

  In a navigation apparatus capable of guiding a route, there is a technique for displaying a detour route and the like in addition to displaying the searched route. Patent Document 1 discloses a technique for displaying, in a searched route (searched route), a shortcutable route in a color different from other routes. Patent Document 2 discloses a technique for displaying a search route and a detour route of the search route in different colors. Patent Document 3 discloses a technique for displaying roads with different link types in different colors.

JP 2002-90167 A International Publication No. 2010/067461 JP 2009-36620 A

  In the techniques described in Patent Documents 1 to 3, since the detour route, the shortcut route, and the link type are displayed in a color different from that of the search route, the user can grasp the existence of the detour route and the like. However, since the detour route or the like is simply displayed in a different color, the user cannot determine the merit / demerit of the detour route or the like. Therefore, as a result of the user using the detour route or the like, in some cases, the distance to the destination may be significantly increased compared to the searched route.

  Therefore, in order to solve the above-described problems, the present invention provides a mobile terminal device, a display method, a program, and a recording medium that can provide useful information for a user by a method different from Patent Documents 1 to The purpose is to provide.

  A mobile terminal device according to an embodiment of the present invention includes a search unit that searches for a route from a current position of a vehicle to a destination, and map information that includes at least a part of the route searched by the search unit. A display processing unit to be displayed, and a specifying unit that specifies a second road satisfying a predetermined condition among the second roads connected to the first road on the searched route, wherein the predetermined condition is When the vehicle enters the second road, the predetermined traffic regulation on the second road increases the distance until the vehicle arrives at the destination as compared to the route, The processing unit causes a display for avoiding the vehicle to enter the second road specified by the specifying unit to be superimposed on the map information and displayed on the display screen.

  In the mobile terminal device according to an embodiment of the present invention, the predetermined traffic regulation is based on a third road connected to the second road and extending in the direction of the destination. May be prohibited.

  In the mobile terminal device according to an embodiment of the present invention, the predetermined traffic regulation is such that the third road is one-way in a direction away from the destination direction, so that the third road is directed to the destination direction. Vehicle entry from the second road may be prohibited.

  In the mobile terminal device according to an embodiment of the present invention, the display processing unit displays an icon corresponding to the predetermined traffic regulation around the third road on the map information, and a vehicle on the second road. It is good also as displaying as a display for avoiding approaching.

  In the mobile terminal device according to an embodiment of the present invention, the display processing unit displays an icon for preventing the vehicle from entering the second road specified by the specifying unit, the first road, and the first road. It is good also as displaying on the periphery of the connection point of 2 roads.

  In the mobile terminal device according to an embodiment of the present invention, the predetermined condition is that when the vehicle enters the second road, the predetermined condition is set at a predetermined point on the route according to a predetermined traffic regulation on the second road. The predetermined point including returning may be characterized in that the predetermined point is a point farther from the destination than the point where the vehicle enters the second road on the route.

  In the mobile terminal device according to an embodiment of the present invention, a loop route that is a route from the point where the vehicle can enter the second road from the first road to the predetermined point on the route is extracted. The display processing unit may display a display mode of the loop route extracted by the extraction unit on the display screen in a display mode different from the route.

  A display method according to an embodiment of the present invention includes a search step for searching for a route from a current position of a vehicle to a destination, and a display for displaying map information including at least a part of the searched route on a display screen. A processing step and a specifying step of specifying a second road satisfying a predetermined condition among the second roads connected to the first road on the searched route, wherein the predetermined condition is determined by the vehicle When entering the second road, the predetermined traffic regulation on the second road includes an increase in the distance until the vehicle arrives at the destination as compared to the route; A display for preventing the vehicle from entering the specified second road is superimposed on the map information and displayed on the display screen.

  A program according to an embodiment of the present invention displays, on a display screen, a search function for searching a route from a current position of a vehicle to a destination and map information including at least a part of the searched route on a computer. A display processing function for specifying the second road satisfying a predetermined condition among the second roads connected to the first road on the searched route, and the predetermined condition includes: When the vehicle enters the second road, the display processing function includes an increase in a distance until the vehicle arrives at the destination as compared to the route due to a predetermined traffic regulation on the second road. The display for causing the vehicle to avoid entering the specified second road is superimposed on the map information and displayed on the display screen.

  A storage medium according to an embodiment of the present invention displays, on a display screen, a search function for searching a route from a current position of a vehicle to a destination and map information including at least a part of the searched route on a computer. A display processing function to be displayed, and a specifying function for specifying a second road satisfying a predetermined condition among the second roads connected to the first road on the searched route, wherein the predetermined condition is: When the vehicle enters the second road, the display processing includes an increase in a distance until the vehicle arrives at the destination as compared to the route due to predetermined traffic regulation on the second road. In the function, a program for causing a display for avoiding the vehicle to enter the identified second road to be superimposed on the map information and displayed on the display screen is stored.

  According to the present invention, it is possible to provide a mobile terminal device, a display method, a program, and a recording medium that can provide useful information for a user.

It is a figure which shows the structural example of the car navigation system 1 in the 1st Embodiment of this invention. It is a figure which shows the structural example of the server apparatus 2 in the 1st Embodiment of this invention. It is a figure which shows the structural example of the mobile terminal device 3 in the 1st Embodiment of this invention. It is a figure which shows the structural example of the map information displayed on the mobile terminal device 3 in the 1st Embodiment of this invention. It is a figure which shows the other structural example of the map information displayed on the mobile terminal device 3 in the 1st Embodiment of this invention. It is a flowchart which shows the operation example of the mobile terminal device 3 in the 1st Embodiment of this invention. It is a figure which shows the structural example of the mobile terminal device 3 in the 2nd Embodiment of this invention. It is a figure which shows the structural example of the map information displayed on the mobile terminal device 3 in the 2nd Embodiment of this invention. It is a figure which shows the other structural example of the map information displayed on the mobile terminal device 3 in the 2nd Embodiment of this invention. It is a flowchart which shows the operation example of the mobile terminal device 3 in the 2nd Embodiment of this invention.

<First Embodiment>
A first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating a configuration example of a car navigation system 1 according to the first embodiment of the present invention. As shown in FIG. 1, the car navigation system 1 includes a server device 2, a mobile terminal device 3, and an NW (Network) 4.

  The server device 2 is a device for delivering map data to the mobile terminal device 3. The server device 2 is, for example, a so-called server device or a computer (for example, a desktop, a laptop, a tablet, or the like). In the first embodiment of the present invention, the server device 2 is not limited to these.

  The server device 2 delivers map data to the mobile terminal device 3 at a predetermined timing. The predetermined timing may be any case such as a predetermined cycle, a predetermined date and time, when map data to be distributed is created, or when requested by the user.

  The map data distributed by the server device 2 is, for example, parcel data or region data. The parcel data is data mainly used for drawing a map, searching for facilities, and the like. For example, the parcel data exists in a rectangular unit obtained by dividing a predetermined region into a mesh shape. The region data is data mainly used for route search or the like, and exists, for example, in a rectangular unit obtained by dividing a predetermined region into a mesh shape. In the first embodiment of the present invention, a case where the server device 2 distributes parcel data will be described as an example. However, the map data distributed by the server device 2 is map data other than parcel data (for example, region data). Or other map data).

  The mobile terminal device 3 is, for example, a device (car navigation device) that can provide a service related to a car navigation system. The mobile terminal device 3 is not limited to a car navigation device, and for example, a smart phone, a mobile phone (for example, a feature phone), a computer (for example, a desktop, a laptop, a tablet, etc.), a PDA (personal digital assistant), or a wearable terminal. It may be. In the first embodiment of the present invention, the mobile terminal device 3 is not limited to these.

  The mobile terminal device 3 is a device that moves together with a moving body 5 such as an automobile, a bus, a motorcycle, or a train. For example, the mobile terminal device 3 may be installed in the mobile body 5 or may be assumed to be held by a user who drives the mobile body 5. The mobile terminal device 3 is not limited to a device that moves with the moving body 5, and may be any device such as a device that moves with the user or a device that is fixed at a predetermined location.

  The mobile terminal device 3 receives the map data from the server device 2 at a predetermined timing. The mobile terminal device 3 updates the stored map data based on the received map data. Moreover, the mobile terminal device 3 presents it to the user of the car navigation system 1 by displaying map data including the updated map data.

  The NW 4 is a communication network for connecting the server device 2 and the mobile terminal device 3. The server device 2 distributes the map data to the mobile terminal device 3 via the NW 4. NW4 is, for example, a wired network or a wireless network. Specifically, NW4 is a wireless LAN (WLAN), a wide area network (WAN), ISDNs (integrated service digital networks), wireless LANs, LTE (long term evolution de DMA), and LTE (long term evolution) DMAC. access). NW4 is not limited to these examples. For example, NW4 may be a public switched telephone network (PSTN), Bluetooth (Bluetooth (registered trademark)), satellite communication, or the like, and any NW There may be.

  FIG. 2 is a diagram illustrating a configuration example of the server device 2 according to the first embodiment of the present invention. As shown in FIG. 2, the server device 2 includes a communication unit 20, a control unit 21, and a map data storage unit 22.

  The communication unit 20 is a communication interface for connecting to the mobile terminal device 3. The server device 2 transmits map data to the mobile terminal device 3 via the communication unit 20. The communication executed by the communication unit 20 may be either wired or wireless communication, and may use any communication protocol.

  The map data storage unit 22 stores map data. The map data storage unit 22 stores map data of a specific area such as a specific country, prefecture, or state. The map data storage unit 22 stores, for example, map data divided into meshes having a hierarchical structure for a specific area.

  The control unit 21 has a function for executing a predetermined function by a code or an instruction in the program, and is, for example, a central processing unit (CPU). The control unit 21 may be, for example, a microprocessor, a multiprocessor, an ASIC (application-specific integrated circuit), or an FPGA (field programmable gate array). In the first embodiment of the present invention, the control unit 21 is not limited to these.

  The control unit 21 transmits the map data stored in the map data storage unit 22 to the information processing terminal 3 at a predetermined timing. The predetermined timing may be any case such as a predetermined cycle, a predetermined date and time, when map data to be transmitted is created, or when requested by the user.

  FIG. 3 is a diagram illustrating a configuration example of the mobile terminal device 3 according to the first embodiment of the present invention. As shown in FIG. 3, the mobile terminal device 3 includes a communication unit 30, a control unit 31, a map data storage unit 32, a GPS 33, a display device 34, and an input reception unit 35.

  The communication unit 30 is a communication interface for connecting to the server device 2. The mobile terminal device 3 receives map data from the server device 2 via the communication unit 30. In addition, the mobile terminal device 3 transmits probe information to the server device 2 via the communication unit 30. The communication performed by the communication unit 30 may be either wired or wireless communication, and may use any communication protocol.

  The map data storage unit 32 stores map data. The map data includes information used for drawing a map. For example, the map data includes a metafile and image data as information for drawing the map. The map data includes information used for facility search. For example, the map data includes information in which the name of the facility is associated with the position of the facility, and can be used for facility search. The map data includes information about road elements for defining map information such as links and nodes. For example, the map data includes road network data including a link indicating a road and a node that is a connection point between the link and the link. In road network data, expressways and national roads are represented by links, and intersections and the like are represented by nodes. The map data storage unit 32 stores map data for a specific area such as a specific country, prefecture, or state. The map data storage unit 32 stores, for example, map data divided into meshes having a hierarchical structure for a specific area. Further, the map data storage unit 32 stores the map data updated by the map data received from the server device 2.

  The GPS 33 has a function for collecting the current position of the mobile terminal device 3. For example, the GPS 33 collects the current position of the mobile terminal device 3 at a predetermined timing. The predetermined timing may be any timing such as a predetermined cycle or an arbitrary timing.

  The display device 34 displays map data and the like based on the display data created by the control unit 31.

  The input receiving unit 35 has a function of receiving information related to the destination by the user of the mobile terminal device 3. The information regarding the destination is, for example, the address or name of the destination. The input receiving unit 35 is not limited to information about the destination, and receives various operations from the user, such as operations on map data displayed on the display screen of the display device 34, for example, enlargement or reduction.

  The control unit 31 has a function for executing a predetermined function by a code or an instruction in the program, and is, for example, a central processing unit (CPU). The control unit 31 may be, for example, a microprocessor, a multiprocessor, an ASIC, an FPGA, or the like. In the first embodiment of the present invention, the control unit 31 is not limited to these.

  As shown in FIG. 3, the control unit 31 includes a search unit 36, a specifying unit 37, and a display processing unit 38.

  When the user inputs a destination using the input receiving unit 35, the search unit 36 searches for a route from the current position of the mobile terminal device 3 collected by the GPS 33 to the destination. The search unit 36 uses the map data stored in the map data storage unit 32 to search for a route from the current position of the mobile terminal device 3 to the destination. For example, when searching for a plurality of routes, the search unit 36 may use the route with the shortest distance as the search route. For example, when searching for a plurality of routes, the search unit 36 may use a route that can move to the destination in the shortest time as a search route. Moreover, the search part 36 is good also considering the path | route which the user determined among the searched several path | routes as a search path | route.

  Further, the search unit 36 may search for a route from the current position of the mobile terminal device 3 to the destination based on the condition input by the user from the input receiving unit 35. The search unit 36 may search for a route from the current position of the mobile terminal device 3 to the destination based on, for example, a condition that an expressway is not used.

  The specifying unit 37 specifies a second road that satisfies a predetermined condition among the second roads connected to the first road on the route searched by the search unit 36. For example, when the vehicle including the mobile terminal device 3 enters the second road, the predetermined condition is that the vehicle is compared with the route searched by the search unit 36 due to predetermined traffic regulation on the second road. The distance to the destination will increase. The predetermined traffic regulation is, for example, that a vehicle approaching from the second road to the destination direction is prohibited on a third road connected to the second road and extending in the direction of the destination.

  FIG. 4 is a diagram illustrating a configuration example of map information displayed on the mobile terminal device 3. As shown in FIG. 4, the map information displayed on the display screen includes the search route searched by the search unit 36 and the destination received from the user by the input receiving unit 35.

  In FIG. 4, the first road is a road on the searched route. The second road is a road connected to the first road, and there are a plurality of second roads. The second road may be any road as long as it is connected to the first road, and is not necessarily limited to a road into which a vehicle including the mobile terminal device 3 can enter.

  Here, when a vehicle including the mobile terminal device 3 enters the departure route (second road) shown in FIG. Can not. Specifically, the departure route (second road) is prohibited from entering the vehicle from the second road to the destination direction on the third road connected to the second road and extending in the direction of the destination. Therefore, the vehicle including the mobile terminal device 3 cannot enter the third road and cannot proceed in the destination direction. Therefore, when a vehicle including the mobile terminal device 3 enters the second road at the intersection A, the distance until the vehicle arrives at the destination is larger than the route searched by the search unit 36 (searched route). To increase.

  However, the user of the mobile terminal device 3 may determine that the departure route is closer to the destination than the searched route based on the map information shown in FIG. 4 and may enter the second road at the intersection A. . The user of the mobile terminal device 3 cannot determine that there is a predetermined traffic restriction on the second road, and the distance to the destination is shorter when entering the second road, or the time required to reach the destination can be shortened. This is because there is a possibility of thinking. In addition, the user of the mobile terminal device 3 may enter the second road as a detour route when the searched route is congested. However, in reality, since there is a predetermined traffic restriction on the second road, the vehicle including the mobile terminal device 3 cannot travel in the direction of the destination. Therefore, like the departure route shown in FIG. 4, the vehicle will travel in a direction completely different from the destination, and the vehicle will arrive at the destination as compared with the route searched by the search unit 36 (searched route). The distance to will increase.

  In this way, the specifying unit 37 specifies the second road where the distance until the vehicle arrives at the destination increases compared to the searched route due to predetermined traffic restrictions on the second road. The predetermined traffic regulation is that the entry of vehicles from the second road is prohibited on the third road connected to the second road and extending in the direction of the destination. For example, the predetermined traffic regulation is, for example, as shown in FIG. 4, when the third road connected to the second road is one-way in a direction away from the destination direction, Vehicle entry from is prohibited.

  The display processing unit 38 displays map information including at least a part of the route searched by the search unit 36 (searched route) on the display screen of the display device 34. Further, the display processing unit 38 changes the map information to be displayed on the display screen of the display device 34 based on the movement of the mobile terminal device 3. Further, the display processing unit 38 may change the map information to be displayed on the display screen of the display device 34 based on an operation (such as enlargement or reduction) on the map data input by the user using the input receiving unit 35. Good.

  In addition, the display processing unit 38 displays on the display screen of the display device 34 a display (such as an icon) for preventing the vehicle including the mobile terminal device 3 from entering the second road specified by the specifying unit 37. And superimposed on the map information.

  FIG. 5 is a diagram illustrating another configuration example of the map information displayed on the mobile terminal device 3. As shown in FIG. 5, the display processing unit 38 displays an icon for preventing the vehicle including the mobile terminal device 3 from entering the second road specified by the specifying unit 37 on the display screen of the display device 34. Overlay the displayed map information. Note that the icon displayed by the display processing unit 38 in a superimposed manner is, for example, a road sign icon indicating entry prohibition, as shown in FIG. The icon displayed by the display processing unit 38 in a superimposed manner is not limited to the example in FIG. 5, and any display such as another icon or text sentence can be used as long as the user of the mobile terminal device 3 can avoid entry. It may be.

  The display processing unit 38 displays, for example, an icon for preventing the vehicle from entering the second road specified by the specifying unit 37 around the connection point between the first road and the second road. For example, as shown in FIG. 5, the display processing unit 38 displays an icon for avoiding the vehicle entering the second road around the intersection A.

  As described above, the display processing unit 38 displays a display (icon) for avoiding entry to the second road that increases the distance until the vehicle arrives at the destination as compared with the searched route. Since the information is displayed superimposed on the information, the user of the mobile terminal device 3 can avoid entering the second road.

  Further, the display processing unit 38 displays, for example, an icon corresponding to a predetermined traffic regulation around the third road connected to the second road as a display for avoiding the vehicle entering the second road. Alternatively, the map information displayed on the display screen of the display device 34 may be superimposed on the map information. For example, as shown in FIG. 5, the display processing unit 38 is one-way around the third road as a display (icon) corresponding to traffic regulation in a direction away from the destination direction. You may display the display (icon) which shows.

  Further, as illustrated in FIG. 5, the display processing unit 38 displays a departure route when the vehicle enters the second road as a display for avoiding the vehicle entering the second road. It may be displayed superimposed on the map information displayed on the display screen of the display device 34 in a manner different from the searched search route.

  FIG. 6 is a flowchart illustrating an operation example of the mobile terminal device 3.

  As shown in FIG. 6, the search unit 36 of the control unit 31 of the information processing terminal 3 searches for a route from the current position of the vehicle to the destination (S101). When the user inputs a destination using the input receiving unit 35, the search unit 36 searches for a route from the current position of the mobile terminal device 3 collected by the GPS 33 to the destination.

  The display processing unit 38 displays map information including at least a part of the route searched by the search unit on the display screen of the display device 34 (S102).

  The specifying unit 37 specifies a second road that satisfies a predetermined condition among the second roads connected to the first road on the searched route (S103). For example, the specifying unit 37 specifies the second road whose distance until the vehicle arrives at the destination is increased as compared with the searched route due to predetermined traffic regulation on the second road.

  The display processing unit 38 causes a display for avoiding the vehicle to enter the second road specified by the specifying unit 37 to be superimposed on the map information and displayed on the display screen (S104).

  As described above, the display processing unit 38 displays a display (icon) for avoiding entry to the second road that increases the distance until the vehicle arrives at the destination as compared with the searched route. Since the information is displayed superimposed on the information, the user of the mobile terminal device 3 can avoid entering the second road. Therefore, the user of the mobile terminal device 3 avoids entering a departure route that increases the distance to reach the destination compared to the searched route, and moves to the destination along the searched route. Is possible.

<Second Embodiment>
In the second embodiment of the present invention, when a vehicle including the mobile terminal device 3 enters the second road, a loop route returning to a predetermined point on the searched route is extracted by a predetermined traffic regulation on the second road. In this embodiment, the information is superimposed on the map information.

  Since the car navigation system 1 in the second embodiment is the same as the configuration example of the car navigation system 1 in the first embodiment illustrated in FIG. 1, detailed description thereof is omitted. Moreover, since the server apparatus 2 in 2nd Embodiment is the same as that of the structural example of the server apparatus 2 in 2nd Embodiment illustrated in FIG. 2, detailed description is abbreviate | omitted.

  FIG. 7 is a diagram illustrating a configuration example of the mobile terminal device 3 according to the second embodiment of the present invention. As shown in FIG. 7, the mobile terminal device 3 includes a communication unit 30, a control unit 31, a map data storage unit 32, a GPS 33, a display device 34, and an input reception unit 35. An extraction unit 39 is included.

  When the vehicle enters the second road specified by the specifying unit 37, the extracting unit 39 extracts a loop route that is a route returning to a predetermined point on the searched route searched by the searching unit 36. For example, the extraction unit 39 is a loop that is a route from which a vehicle including the mobile terminal device 3 can enter a second road connected to the first road on the search route to a predetermined point on the search route. Extract the route. The predetermined point is, for example, a point farther from the destination than a point that can enter the second road on the searched route. That is, the extraction unit 39 returns before the point where it has left the search route, and the vehicle arrives at the destination as compared with the case where the extraction unit 39 moves along the search route without entering the loop route. The loop route that would increase the distance to the is extracted. Note that the loop route is different from the search route searched by the search unit 36 and is not searched by the search unit 36. The loop route is a route that at least partially overlaps the search route searched by the search unit 36. However, since the search unit 36 does not set the same route as the search route, the loop route is determined by the search unit 36. Not searched. In the second embodiment, the extraction unit 39 extracts a loop route.

  FIG. 8 is a diagram illustrating a configuration example of map information displayed on the mobile terminal device 3 in the second embodiment. As shown in FIG. 8, the map information displayed on the display screen includes the search route searched by the search unit 36 and the destination received from the user by the input receiving unit 35.

  In FIG. 8, the first road is a road on the searched route. The second road is a road connected to the first road, and there are a plurality of second roads. The second road may be any road as long as it is connected to the first road, and is not necessarily limited to a road into which a vehicle including the mobile terminal device 3 can enter.

  Here, when a vehicle including the mobile terminal device 3 enters the second road shown in FIG. 8, the second road cannot travel in the direction of the destination due to predetermined traffic restrictions on the second road. Specifically, the second road is prohibited from entering the vehicle from the second road to the destination direction on a third road that is connected to the second road and extends in the direction of the destination. Therefore, the vehicle including the mobile terminal device 3 cannot enter the third road and cannot proceed in the destination direction.

  As a result, the vehicle that has entered the second road must turn at the intersection C in the opposite direction to the destination, and proceed on the third road in the direction opposite to the destination, and then move to the destination. Then, the vehicle turns left at the intersection D, and eventually returns to the search route searched by the search unit 36.

  And the point which returned to the search path | route, ie, the intersection E, is a point far from the destination on this search path | route from the intersection B which is the point which entered the 2nd road. Therefore, when a vehicle including the mobile terminal device 3 enters the second road at the intersection B, the distance until the vehicle arrives at the destination is larger than the route searched by the search unit 36 (searched route). To increase. Here, after entering the second road at the intersection B, the route that proceeds to the intersection C, the intersection D, and the intersection E and eventually returns to the searched route is a loop route.

  However, the user of the mobile terminal device 3 may enter the second road at the intersection B based on the map information shown in FIG. This is because the user of the mobile terminal device 3 cannot easily determine that there is a predetermined traffic restriction on the second road. In addition, the user of the mobile terminal device 3 may enter the second road as a detour route when the searched route is congested. However, in reality, since there is a predetermined traffic restriction on the second road, the vehicle including the mobile terminal device 3 cannot travel in the direction of the destination. Therefore, as in the loop route shown in FIG. 8, the vehicle arrives at the destination as compared with the route (search route) searched by the search unit 36 without returning to a point far from the destination on the search route. The distance to do increases.

  As described above, the extraction unit 39 is configured to select a predetermined point on the search route (a point farther from the destination than the point of departure) from the point where the second road connected to the first road on the search route can be entered. A loop route that is a route to return to is extracted.

  Therefore, the display processing unit 38 displays a display (such as an icon) for preventing the vehicle including the mobile terminal device 3 from entering the loop route specified by the extraction unit 39 on the display screen of the display device 34. It is displayed superimposed on the map information.

  FIG. 9 is a diagram illustrating another configuration example of the map information displayed on the mobile terminal device 3. As shown in FIG. 9, the display processing unit 38 displays an icon for preventing the vehicle including the mobile terminal device 3 from entering the loop route specified by the extraction unit 39 on the display screen of the display device 34. And superimposed on the map information.

  The display processing unit 38 displays, for example, an icon for preventing the vehicle from entering the loop route specified by the extraction unit 39 around the connection point between the first road and the second road. For example, as shown in FIG. 9, the display processing unit 38 displays an icon for avoiding the vehicle entering the loop route around the intersection B. In addition, the display processing unit 38 displays an icon for preventing the vehicle from entering the loop route at another point (for example, the intersection F) that can be a loop route. In addition, as shown in FIG. 9, the icon displayed by the display processing unit 38 in a superimposed manner is, for example, a road sign icon indicating entry prohibition.

  Further, as illustrated in FIG. 9, the display processing unit 38 displays the loop route in a mode different from the search route searched by the search unit 36 as a display for avoiding the vehicle entering the loop route. Then, it is displayed superimposed on the map information displayed on the display screen of the display device 34.

  In addition, the display processing unit 38 displays, for example, an icon corresponding to a predetermined traffic regulation around the third road connected to the second road as a display for preventing the vehicle from entering the loop route. It may be displayed superimposed on the map information displayed on the display screen of the display device 34. For example, as shown in FIG. 9, the display processing unit 38 is one-way around the third road as a display (icon) corresponding to traffic regulation in a direction away from the destination direction. You may display the display (icon) which shows.

  FIG. 10 is a flowchart showing an operation example of the mobile terminal device 3.

  As shown in FIG. 10, the search unit 36 of the control unit 31 of the information processing terminal 3 searches for a route from the current position of the vehicle to the destination (S201). When the user inputs a destination using the input receiving unit 35, the search unit 36 searches for a route from the current position of the mobile terminal device 3 collected by the GPS 33 to the destination.

  The display processing unit 38 displays map information including at least a part of the route searched by the search unit on the display screen of the display device 34 (S202).

  The specifying unit 37 specifies a second road that satisfies a predetermined condition among the second roads connected to the first road on the searched route (S203). For example, the specifying unit 37 specifies the second road whose distance until the vehicle arrives at the destination is increased as compared with the searched route due to predetermined traffic regulation on the second road.

  When the vehicle enters the second road specified by the specifying unit 37, the extracting unit 39 extracts a loop route that is a route returning to a predetermined point on the searched route searched by the searching unit 36 (S204).

  The display processing unit 38 causes a display for avoiding the vehicle to enter the loop route specified by the specifying unit 37 to be superimposed on the map information and displayed on the display screen (S205).

  Further, the display processing unit 38 causes the loop route extracted by the extraction unit 39 to be displayed superimposed on the map information displayed on the display screen of the display device 34 (S206).

  As described above, the display processing unit 38 superimposes and displays on the map information the loop route that increases the distance until the vehicle arrives at the destination as compared to the searched route. Can avoid entering the first loop route. Therefore, the user of the mobile terminal device 3 avoids entering a loop route that increases the distance to reach the destination as compared with the searched route, and moves to the destination along the searched route. Is possible.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each means, each step, etc. can be rearranged so that there is no logical contradiction, and a plurality of means, steps, etc. can be combined or divided into one. . The structures described in the above embodiments may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 Car navigation system 2 Server apparatus 20 Communication part 21 Control part 22 Map data storage part 3 Mobile terminal device 30 Communication part 31 Control part 32 Map data storage part 33 GPS
34 display device 35 input reception unit 36 search unit 37 identification unit 38 display processing unit 39 extraction unit 4 NW
5 Mobile body (vehicle)

Claims (10)

A search unit for searching a route from the current position of the vehicle to the destination;
A display processing unit for displaying map information including at least a part of the route searched by the search unit on a display screen;
A specifying unit that specifies a second road satisfying a predetermined condition among the second roads connected to the first road on the searched route,
The predetermined condition is that when the vehicle enters the second road, the distance until the vehicle arrives at the destination is increased compared to the route due to predetermined traffic restrictions on the second road. Including
The display processing unit is a mobile terminal device that causes a display for avoiding the vehicle to enter the second road specified by the specifying unit to be superimposed on the map information and displayed on the display screen.   The predetermined traffic regulation is that a vehicle approaching from the second road to the destination direction is prohibited on a third road connected to the second road and extending in the direction of the destination. Mobile terminal equipment.   According to the predetermined traffic regulation, when the third road is one-way in a direction away from the destination direction, vehicle entry from the second road to the destination direction is prohibited on the third road. The mobile terminal apparatus according to claim 2.   The display processing unit displays an icon corresponding to the predetermined traffic regulation around the third road on the map information as a display for preventing a vehicle from entering the second road. Item 4. The mobile terminal device according to Item 2 or 3.   The display processing unit displays an icon for avoiding the vehicle entering the second road specified by the specifying unit around a connection point between the first road and the second road. The mobile terminal device according to any one of 4 to 4. The predetermined condition includes, when the vehicle enters the second road, returning to a predetermined point on the route according to a predetermined traffic regulation on the second road;
The mobile terminal apparatus according to claim 1, wherein the predetermined point is a point farther from the destination than the point where the vehicle enters the second road on the route. An extraction unit that extracts a loop route that is a route from a point where the vehicle can enter the second road from the first road to a predetermined point on the route;
The navigation device according to claim 6, wherein the display processing unit displays the display mode of the loop route extracted by the extraction unit on the display screen in a display mode different from the route. A search step for searching for a route from the current position of the vehicle to the destination;
A display processing step for displaying map information including at least a part of the searched route on a display screen;
A specifying step of specifying a second road satisfying a predetermined condition among the second roads connected to the first road on the searched route, and
The predetermined condition is that when the vehicle enters the second road, the distance until the vehicle arrives at the destination is increased compared to the route due to predetermined traffic restrictions on the second road. Including
A display method in which, in the display processing step, a display for avoiding the vehicle from entering the specified second road is displayed on the display screen so as to be superimposed on the map information. On the computer,
A search function that searches for a route from the current position of the vehicle to the destination,
A display processing function for displaying map information including at least a part of the searched route on a display screen;
A specifying function for specifying a second road satisfying a predetermined condition among the second roads connected to the first road on the searched route,
The predetermined condition is that when the vehicle enters the second road, the distance until the vehicle arrives at the destination is increased compared to the route due to predetermined traffic restrictions on the second road. Including
In the display processing function, a program for executing a display for causing the vehicle to avoid entering the specified second road to be superimposed on the map information and displayed on the display screen. On the computer,
A search function that searches for a route from the current position of the vehicle to the destination,
A display processing function for displaying map information including at least a part of the searched route on a display screen;
A specifying function for specifying a second road satisfying a predetermined condition among the second roads connected to the first road on the searched route,
The predetermined condition is that when the vehicle enters the second road, the distance until the vehicle arrives at the destination is increased compared to the route due to predetermined traffic restrictions on the second road. Including
In the display processing function, a program for executing a display for causing the vehicle to enter the specified second road to be superimposed on the map information and displayed on the display screen is stored. Storage medium.