JP2019120498A - Drive supporting system and drive supporting program - Google Patents

Abstract

To provide a technique of saving a user disadvantages related to charges for using an expressway when the user is dropping by a drop-by facility related to an interchange from which the user can temporarily exit.SOLUTION: The operation supporting system includes: a drop-by facility guiding unit for asking a user whether the user is to drop by a drop-by facility related to an interchange that allows the user to exit from an expressway temporarily; a route search unit for searching for a route to drop by a drop-by facility, using the above interchange, regardless of the contents of the setting of the availability of a smart IC if dropping-by to the drop-by facility is selected; and a route guidance unit for showing the route.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a driving support system and a driving support program.

Conventionally, when leaving an interchange that can be temporarily withdrawn from an expressway, stopping at a designated facility, and then returning to the interchange, the same rate as using the expressway to the destination without leaving it temporarily Services are known. Patent Document 1 describes a technique for guiding a facility around an interchange that can leave temporarily or a facility around the above-mentioned designated facility while traveling on an expressway.
In addition, smart interchanges (smart ICs), which are interchanges dedicated to ETC (Electronic Toll Collection System) installed on main roads of expressways or in service areas, parking areas, etc., are in widespread use.

JP, 2011-226908, A

By the way, there is a navigation system in which the user can select whether to use the smart IC. In the case where the setting is made not to use the smart IC in such a navigation system and the interchange (temporary leaving possible IC) capable of temporarily leaving is the smart IC, the user can leave the temporary leaving possible IC Even if you want to stop at the specified designated stop-by facility, the navigation system does not use the temporary exitable IC (by using a non-smart IC before or after the temporary exitable IC) to the stop-by facility The route to go will be guided. If the user leaves the expressway from the non-smart IC interchange before and after the temporary exitable IC according to the guided route and stops at the stop facility, the above-mentioned toll service may not be applied and may suffer disadvantages. There was a problem of being there.
The present invention has been made in view of the above problems, and the user suffers from the disadvantage relating to the toll rate of the expressway when stopping at the drop-in facility associated with the interchange which can temporarily exit the expressway. To provide technology to prevent

  In order to achieve the above-mentioned purpose, the driving support system asks the user whether or not to stop at the drop-in facility associated with the interchange which can be temporarily exited on the expressway, and to the stop-by facility. When drop-in is selected, a route search unit that searches for a route that drops in to a drop-in facility using an interchange that can temporarily leave regardless of the setting contents of the availability setting of the smart IC, and a route guide unit that guides the route And.

  Furthermore, in order to achieve the above-mentioned purpose, the driving support program has a computer for asking the user whether or not to stop at the drop-in facility associated with the interchange which can temporarily exit the expressway, and If a drop-in facility is selected as a drop-in facility, the route search unit searches for a route that drops in to the drop-in facility using an interchange that can temporarily leave regardless of the setting contents of the availability setting of the smart IC, It functions as a route guidance unit to guide.

  That is, in the driving support system or program, when the user chooses to stop at the stop-by facility associated with the interchange that can temporarily leave, the user temporarily exits regardless of the setting contents of the availability setting of the smart IC. Routes will be provided to stop at the stop facility using possible interchanges.

  Therefore, even in the case of this configuration, even if the setting is made not to use the smart IC, and the temporary interchange that is associated with the drop-in facility to which the user selects to stop is the smart IC, an exception is made. It is treated as being permitted to use the temporary leaveable interchange corresponding to the drop-in facility. Then, a route to stop at the stop-off facility is searched for and guided using the interchange that can leave temporarily. As described above, even when the setting is made not to use the smart IC, as in the conventional case, the expressway is exited from the interchange other than the temporary leaveable interchange (interchange which is not the smart IC) and the stop at the facility Since the route is not guided, it is possible to prevent the user from the disadvantage of not being applied for the toll service by traveling along the route.

It is a block diagram showing a navigation system containing a driving support system. 5 is a flowchart of driving support processing. FIG. 3A is a diagram showing an example of route guidance on an expressway, FIG. 3B is a diagram showing an example of querying a drop-in facility to drop in and FIG. 3C is a diagram showing an example of route guidance to a drop in facility .

Here, embodiments of the present invention will be described in the following order.
(1) Configuration of navigation system:
(2) Driving support processing:
(3) Other embodiments:

(1) Configuration of navigation system:
FIG. 1 is a block diagram showing a configuration of a driving support system mounted on a vehicle. The driving support system in the present embodiment is realized by the navigation system 10. The navigation system 10 includes a control unit 20 having a CPU, a RAM, a ROM, and the like, and a recording medium 30, and the control unit 20 can execute programs stored in the recording medium 30 and the ROM.

  Map information 30 a is recorded on the recording medium 30. The map information 30a is node data indicating the position of a node corresponding to the end point of the road section where the vehicle travels, shape interpolation point data indicating the position of a shape interpolation point for specifying the shape of the road section between nodes, The link data which shows connection of nodes, the facility data which shows the facility which exists around the road, etc. are included. In the present embodiment, a node which is an end point of a road section corresponds to an intersection.

  Further, in the present embodiment, the link data is associated with the attribute (such as the road type) of each road section indicated by each link data and the information indicating the link cost. Further, the intersections indicated by the nodes include an access point on an expressway, an exit point, an access point to a facility, an exit point, and a parking lot of a rest area along the expressway. Therefore, the location of the interchange (IC), the rest area (service area (SA), parking area (PA), etc. facilities) and junction (JCT) is indicated by node data.

  The facility data may also include information on interchanges and rest areas. For example, the interchange includes a smart IC. When the interchange is a smart IC, the facility data of the map information 30a includes information indicating that the interchange is a smart IC.

  Further, for example, the interchange includes an interchange (temporary exitable IC) capable of temporarily leaving the expressway. When the interchange is a temporary withdrawal IC, the facility data of the map information 30a includes information indicating that temporary withdrawal is possible in the interchange. In the present embodiment, the information indicating that temporary leaving is possible corresponds to a stop-by facility to be dropped in after leaving the interchange, and temporary drop-off including dropping in at the drop-in facility. The period to be considered is associated. Also, when the facility is an interchange, the facility data includes information indicating an available time zone of the interchange.

  The vehicle according to the present embodiment includes a GNSS receiving unit 41, a vehicle speed sensor 42, a gyro sensor 43, a user I / F unit 44, and an ETC unit 45. The GNSS receiving unit 41 is a device that receives a signal of the Global Navigation Satellite System, receives a radio wave from a navigation satellite, and outputs a signal for calculating the current position of the vehicle through an interface (not shown). The control unit 20 acquires this signal to acquire the current location of the vehicle. The vehicle speed sensor 42 outputs a signal corresponding to the rotational speed of the wheels provided in the vehicle. The control unit 20 acquires this signal via an interface (not shown) to acquire the vehicle speed. The gyro sensor 43 detects angular acceleration of turning in the horizontal plane of the vehicle, and outputs a signal corresponding to the direction of the vehicle. The control unit 20 acquires this signal to acquire the traveling direction of the vehicle. The vehicle speed sensor 42, the gyro sensor 43, etc. are used to specify the traveling locus of the vehicle, and in the present embodiment, the current position is identified based on the departure place of the vehicle and the traveling locus, and the departure place and the traveling locus And the current location of the vehicle identified based on the output signal of the GNSS receiver 41 is corrected.

  The user I / F unit 44 is an interface unit for inputting a user's (driver's) instruction and for providing various information to the user, and an input such as a display unit or a switch or the like which is not shown and which is a touch panel display. And an audio output unit such as a speaker. The user I / F unit 44 receives a control signal from the control unit 20, and displays an image for performing various guidance such as route guidance on the touch panel display.

  The ETC unit 45 communicates with the communication device of the charge collection system installed on the road surface to pay the charge. The ETC unit 45 can identify an entrance interchange, an exit interchange, and the like by communicating with a communication device installed on the road surface. The ETC unit 45 can also specify whether the leaving interchange is a temporary leaving IC. Further, the ETC unit 45 determines, for example, whether or not the temporary withdrawal condition is satisfied after temporary withdrawal from the temporary IC. Specifically, for example, in the ETC unit 45, the vehicle actually stops at a stop-by facility associated with the temporary exitable IC, and reenters the expressway from the predetermined IC within a predetermined time from temporary exit. It is determined whether or not it has been done. The control unit 20 may be configured to obtain at least a part of the information from the ETC unit 45.

  In the present embodiment, the control unit 20 can execute a navigation program recorded in a ROM or the like. The navigation program is a program that causes the control unit 20 to realize a function of displaying a map including the current position of the vehicle on the display unit of the user I / F unit 44 and guiding the driver to the destination. That is, the control unit 20 can execute the setting of the destination and the search of the route from the departure location to the destination by the navigation program, and the guidance for guiding the vehicle along the route.

  The route guidance can be implemented in a manner different for each road type. In the present embodiment, the control unit 20 can execute route guidance on a general road and route guidance on an expressway. That is, the control unit 20 performs route guidance on a general road while the vehicle travels on a general road, and performs route guidance on a highway while the vehicle travels on a freeway.

  FIG. 3A is a diagram showing an example of route guidance on an expressway. In the present embodiment, when traveling on an expressway with the route to the destination set, as shown in FIG. 3A, a map is displayed on the left half of the display unit of the user I / F unit 44. The present location C of the vehicle is displayed in the map, and the expressway is highlighted to indicate that the expressway is a route. Also, on the right half of the display unit of the user I / F unit 44, a schematic view of a highway is shown.

  Although various display modes can be assumed when traveling on an expressway in a state where a route to a destination is not set, in the present embodiment, in the left half of the display unit of the user I / F unit 44 A map is displayed, the current location C of the vehicle is displayed in the map (highway is not highlighted), and a schematic diagram of the freeway is shown in the right half of the display.

  In the example shown in FIG. 3A, it is shown that the facility closest to the current location is the service area (SA) and the name is AAA. Also, it is shown that the facility closest to the present location is the interchange (IC) and the name is BBB. Furthermore, it is shown that the facility closest to the current location is the interchange and the name is CCC. In the example shown in FIG. 3A, a black horizontal line and a drop-in facility (road station DD) are shown in the icon indicating the interchange BBB, and it is shown that the interchange BBB is a temporary exitable IC. That is, it is shown that it is possible to temporarily exit the expressway from the interchange BBB and stop at the road station DD to re-enter the expressway. When traveling out of the temporary exit IC while traveling on the expressway, and entering the expressway from the temporary exitable IC within a period considered to be temporary withdrawal, the vehicle may continue traveling without leaving the expressway It will be similar fee.

  The recording medium 30 stores setting values (not shown) for various setting items regarding functions provided by the navigation system 10 to the user. The various setting items include the availability setting of the smart IC. That is, the user can set in the navigation system 10 whether to permit the use of the smart IC (permit a search considering the smart IC). When the availability setting of the smart IC is set to permission, the control unit 20 treats the smart IC as an IC capable of entering and leaving the expressway by the navigation program and performs route search. Therefore, in this case, a route using the smart IC can be guided. When the use permission setting of the smart IC is set to refusal, the control unit 20 can normally enter the smart IC into the expressway or leave the expressway by the navigation program (except for an exception described later) Search for the route excluding a specific IC. Therefore, in this case, the route for entering and exiting the expressway is not guided by the smart IC.

  In the present embodiment, when there is a temporary exitable IC in front of the vehicle traveling on the expressway, the navigation system 10 selects to the user whether or not to stop at the stop-by facility associated with the temporary exitable IC. It has a function to provide a UI (User Interface). In addition, when the user selects to stop at the stop-by facility, the navigation system 10 according to the present embodiment uses a temporary exitable IC to stop at the stop-off facility regardless of the setting contents of the use permission setting of the smart IC. Has a function to search for and guide.

  In order to realize these functions, the navigation program includes a driving support program 21. The driving support program 21 includes a stop-off facility guidance unit 21a, a route search unit 21b, and a route guide unit 21c. The stop-off facility guidance unit 21a is a program module that causes the control unit 20 to realize the function of inquiring the user whether to stop at the stop-off facility associated with the interchange that can temporarily leave the expressway.

  In the present embodiment, the control unit 20 uses the function of the stop-off facility guidance unit 21 a to set the number of facilities (IC, SA, PA, and so on) of the predetermined number ahead of the traveling direction from the current location of the vehicle It is determined based on the map information 30a every time the vehicle passes through the facility of the expressway whether the temporary exitable IC exists in JCT etc.). The control unit 20 can acquire the current location of the vehicle based on the output signals of the GNSS receiving unit 41, the vehicle speed sensor 42, and the gyro sensor 43. When the current location of the vehicle is on the expressway, information on facilities corresponding to a predetermined number of forward traveling directions from the current location of the vehicle on the expressway can be acquired with reference to the map information 30a.

  When the temporary exitable IC is present, the control unit 20 displays a button for selecting to stop at the drop-in facility associated with the temporary exitable IC on the display unit of the user I / F unit 44. In the present embodiment, this inquiry is carried out regardless of whether or not traveling is performed with the route to the destination set.

  FIG. 3B shows a button b1 displayed on the display unit of the user I / F unit 44 (for selecting a drop-in to a drop-in facility when there is a temporary exitable IC in front of the traveling direction of the vehicle on the expressway). Button) is shown. In the example shown in FIG. 3B, the button b1 is displayed in the vicinity of the display position of the drop-in facility (road station DD) in the schematic of the highway of the right half of the route guide on the highway shown in FIG. 3A. It shows. When the user touches the button b1, the control unit 20 considers that the user has selected to stop at the road station DD. In addition, when the button b1 is not touched until it is determined that the user has passed the interchange BBB without leaving the expressway from the interchange BBB, the control unit 20 has assumed that the user has not selected to stop at the road station DD. I think.

  The route search unit 21b has a function of searching for a route to drop in to the drop-in facility using an interchange that can temporarily leave regardless of the setting contents of the availability setting of the smart IC when the drop-in facility is selected to be dropped in It is a program module to be realized by the control unit 20. That is, when a drop-in facility is selected as a drop-in facility, the control unit 20 is set to be permitted by the function of the route search unit 21b even if the use permission setting of the smart IC is set to rejection. It is considered exceptionally, and a route from the current location to a drop-in facility associated with the temporary leaving IC is searched using the temporary leaving IC. In this case, the control unit 20 does not change the setting content itself of the availability setting of the smart IC. Therefore, when the availability setting of the smart IC is set to rejection, the state where rejection is set continues.

  In addition, when traveling on the expressway with the route to the destination already set, the control unit 20 further stops by the function of the route searching unit 21b, and after stopping at the stop-by facility, it is possible to temporarily exit from the IC A route for re-entering the road and traveling to the destination is also searched. When traveling on an expressway with no route to a destination set, in the present embodiment, the control unit 20 uses a temporary leaving IC from the current location on the expressway to stop by the facility Search for a route when driving up to.

  The route guiding unit 21 c is a program module that causes the control unit 20 to implement a function of guiding the route searched by the route searching unit 21 b. The control unit 20 determines whether or not the estimated passing time of the interchange that can temporarily leave is included in the usable time zone of the interchange that can temporarily exit when traveling along the route and stopping at the stop-off facility. When it is included, the route from the current location to the temporary exit IC is shown via the user I / F unit 44 for leaving the expressway and guiding to the stop facility. When traveling along a route and stopping at a stop-off facility, the control unit 20 guides the route when the estimated transit time of the temporarily exiting interchange is not included in the available time zone of the interchange that can be temporarily withdrawn. do not do.

  As the estimated passing time, in the present embodiment, both the estimated leaving time from the freeway and the estimated re-entry time to the freeway are considered. The estimated exit time from the expressway is an exit time predicted when exiting the expressway at a temporary exitable IC according to a route where a vehicle traveling on the expressway is searched. The estimated reentry time to the expressway is calculated based on the estimated exit time from the expressway, the estimated required travel time from the temporary exitable IC to the stop-by facility, and the estimated stay time at the drop-off facility. In the present embodiment, when both the estimated leaving time and the estimated re-entry time are included in the available time zone of the temporary leaving possible IC, the control unit 20 determines that the estimated passing time of the temporary leaving possible IC is the temporary leaving It determines that it is included in the available time zone of the possible IC.

  When it is determined that the estimated passing time of the temporary leaving IC is included in the available time zone of the temporary leaving IC, the control unit 20 first performs the function of the route guidance unit 21c to temporarily stop the vehicle traveling on the freeway. Guide to exit from the exitable IC. That the vehicle has exited the expressway from the temporary exitable IC may be specified based on, for example, the traveling track of the vehicle and map information, etc., and the ETC unit 45 and the communication device provided in the temporary exitable IC It may be specified based on communication, and various configurations may be adopted. After the vehicle exits from the temporary exitable IC, the control unit 20 guides the path from the temporary exitable IC to the corresponding drop-in facility by the function of the route guidance unit 21c.

  FIG. 3C shows an example of route guidance in the process of leaving temporarily at the interchange BBB which is a temporary exitable IC and heading for the road station DD which is a drop-in facility associated with the interchange BBB. As shown in FIG. 3C, a schematic of the freeway displayed on the right half of the display of the user I / F unit 44 is maintained. In this case, since the vehicle temporarily exits from the expressway and does not advance on the expressway, the nearest facility does not change from being a temporary exitable interchange BBB in the diagram of the expressway. However, it is indicated by a black arrow in the icon of the interchange BBB that the vehicle temporarily exits at the interchange BBB which can leave temporarily and is heading for the road station DD. In the left half of the map shown in FIG. 3C, the route from the interchange BBB, which is a temporary exitable IC, to the road station DD (in the example of FIG. 3C, a road section with a dashed line superimposed) and the current location C of the vehicle are shown. Be When the route to the destination is set, the existing route is not deleted in the state of temporary exit (in the left half of FIG. 3C, the route is highlighted by the thick curve of the expressway) It is shown). In addition, when the route to the destination is not set, highlighting for indicating that the route is for the expressway may not be performed.

  According to the above configuration, when there is a temporary exitable IC in front of the expressway of the vehicle, the user can be inquired as to whether or not the drop-in facility associated with the temporary exitable IC is to be dropped. Therefore, it is possible to reduce the possibility of the user leaving the expressway IC temporarily from the temporary exit IC and missing the opportunity to stop at the stop-up facility. Also, when the user wishes to stop at the stop facility, it is configured to leave the expressway from the temporary exitable IC and guide the route to the stop facility regardless of the setting contents of the availability setting of the smart IC. It is possible to prevent the user from being disadvantaged regarding the toll of the expressway by leaving the expressway from the IC which is not a temporary exitable IC. Conventionally, in the case where the navigation system 10 is set to reject use of the smart IC, and the temporary leaving possible IC is a smart IC, the smart ICs before and after the temporary leaving possible IC corresponding to the drop-in facility The route of leaving and re-entering the expressway at the non-IC is guided. Therefore, when leaving the expressway along the route, the user may suffer the disadvantage that the toll service is not applied. According to this embodiment, it is possible to prevent the user from suffering such a disadvantage.

(2) Driving support processing:
Next, the driving support process executed by the control unit 20 will be described with reference to FIG. The driving support process is repeatedly performed each time the vehicle travels on a highway facility (IC, SA, PA, JCT, etc.) while traveling on the highway.

  When the driving support process is started, the control unit 20 determines whether the temporary leaving possible IC exists in the predetermined number of facilities ahead of the current direction of the vehicle from the current location of the vehicle by the function of the stop-off facility guidance unit 21a. (Step S100). The predetermined number is the maximum number of expressway facilities (three in the present embodiment) displayed in the schematic view of the expressway shown in FIG. 3A and the like. If you are traveling on a freeway with no route to the destination, and there are three facilities ahead of the current location in the direction of travel, there will be a JCT from the current location to the most recent JCT. It is determined whether there is a temporary exitable IC in the facility. In addition, when it is drive | working in the state in which the path | route to the destination is set, it is good also considering it as the exclusion object of determination whether leaving planned IC in the path | route of driving plan is temporary IC possible. If it is not determined in step S100 that there is a temporary exitable IC, the control unit 20 ends the driving support process.

  If it is determined in step S100 that there is a temporary exitable IC, the control unit 20 causes the user I / F unit 44 to display a button for selecting a drop-in facility to the drop-in facility by the function of the drop-out facility guidance unit 21a ( Step S105). Specifically, for example, as illustrated in FIG. 3B, the control unit 20 displays the button b1 near the display position of the stop facility.

  Subsequently, the control unit 20 determines whether or not the button is pressed by the function of the stop-off facility guidance unit 21a (step S110). If it is not determined in step S110 that the button has been pressed, the control unit 20 determines whether or not the expressway facility (IC, SA, PA, JCT, etc.) has passed (step S115). If it is not determined in step S115 that the vehicle has passed the expressway facility, the control unit 20 returns to the process of step S110. If it is determined in step S115 that the vehicle has passed the expressway facility, the control unit 20 ends the display of the button and ends the driving support process (because one expressway facility has been passed, the driving support process is immediately started again). ).

  If it is determined in step S110 that the button has been pressed, the control unit 20 determines whether or not there is a route setting (step S120). That is, the control unit 20 determines whether or not the route to the destination is set. If it is determined in step S110 that the button has been pressed, the control unit 20 ends the display of the button shown in FIG. 3B.

  In step S120, when it is determined that the route setting is present, the control unit 20 searches for a route toward the destination via the stop-by facility using the IC that can temporarily exit from the current location by the function of the route search unit 21b. (Step S125). That is, the control unit 20 travels from the current location to the temporary exitable IC, exits the temporary exitable IC from the expressway, travels to the stop-off facility, returns from the stop-off facility to the temporary exitable IC, and temporarily exits the IC Re-enter to search for a route towards the destination.

  If it is not determined in step S120 that there is a route setting, the control unit 20 searches for a route toward the drop-in facility using the IC that can temporarily exit from the current location by the function of the route search unit 21b (step S130). That is, the control unit 20 travels from the current location to the temporary exitable IC, and exits from the temporary exitable IC to the expressway and searches for a route toward the stop-off facility.

  After execution of step S125 or after execution of step S130, the control unit 20 determines whether or not the temporary exitable IC can be passed within the available time zone of the temporary exitable IC (step S135). For example, the control unit 20 acquires the available time zone of the interchange BBB from the map information 30a, and acquires the estimated leaving time from the interchange BBB when traveling the route searched in step S125 or S130. Specifically, for example, based on the current time, the distance of each road section (main section, decelerating lane section, etc.) from the current location to the exit of the interchange BBB, and the average vehicle speed in each road section, Get estimated exit time from interchange BBB. In addition, the estimated re-entry time is acquired based on the estimated exit time, the estimated travel time of round trip from the interchange BBB to the roadside station DD, and the estimated staying time at the roadside station DD. Then, when both the estimated leaving time and the estimated re-entry time are included in the available time zone of the interchange BBB, it is determined that the interchange BBB can be passed within the available time zone of the interchange BBB.

  If it is determined in step S135 that the temporary exitable IC can pass through the temporary exitable IC during the usable time zone of the temporary exitable IC, the control unit 20 uses the temporary exitable IC to stop by using the function of the route guidance unit 21c. The guidance of the route to the facility is started (step S140). That is, if it is determined in step S120 that there is a route setting, and it is determined that passing is possible in step S135 after step S125 is executed, the route is changed to the route set and guided so far in step S140 and searched in step S125. Route is set and guidance is started. On the other hand, if it is determined in step S120 that the route setting is not present and it is determined that the passage is possible in step S135 after step S130, the guidance of the route searched in step S130 is started. Note that the driving support process is not performed from the start of the guidance of the route to the stop facility to the re-entry of the expressway. Therefore, during route guidance to stop at a stop facility, an inquiry as to whether or not to stop at another stop facility is not made.

  In step S135, when it is not determined that the temporary exitable IC can be passed during the usable time zone of the temporary exitable IC, the control unit 20 indicates that the user I / F unit 44 can not search for a route to the stop-by facility. The user is notified via (step S145). For example, it may be configured to notify reasons such as that the temporary withdrawal IC can not be used (the temporary withdrawal IC can not leave or re-enter) because the temporary withdrawal IC is not available time zone. The aspect of notification may be implemented by voice, may be implemented by display, or may be implemented by both audio and display.

  After executing step S145, the control unit 20 continues the original guidance by the function of the route guidance unit 21c (step S150). That is, if it is determined in step S120 that the route setting is not present, and it is not determined in step S135 that the route can be passed, in step S150, guidance for the route searched in step S125 is not started. Continue to guide the route that was being If it is not determined that the route setting is present in step S120 and the passage is not determined to be passable also in subsequent step S135, the control unit 20 does not start guiding the route searched in step S130 in step S150, and the route is set. Continue to display when driving on a freeway without being

(3) Other embodiments:
The above embodiment is an example for carrying out the present invention, and when the user selects to stop at the drop-in facility associated with the interchange which can temporarily leave the expressway, setting of the availability setting of the smart IC Various other embodiments can be adopted as long as a route to drop in to a stop-off facility is searched and guided using a temporary exit interchange regardless of the content. For example, the navigation system 10 may be a device mounted on a vehicle or the like, may be a device realized by a portable terminal, or may be realized by a plurality of devices (for example, a client and a server) System may be used.

  Furthermore, at least a part of the stop-off facility guidance unit 21a, the route search unit 21b, and the route guide unit 21c that constitute the driving support system may be divided into a plurality of devices. Of course, some configurations of the above-described embodiment may be omitted, or the order of processing may be changed or omitted.

  The stop-off facility guidance section only needs to be able to inquire the user whether or not to stop at the stop-off facility associated with the interchange that can temporarily exit the expressway, and various configurations can be adopted. For example, in the above embodiment, it is first inquired whether or not to stop at the drop-in facility associated with the temporary exitable IC, and if the user selects to stop, the estimated transit time of the temporary exitable IC is used. Although the configuration has been adopted to determine whether or not it is included in the possible time zone, if it is first determined whether or not the estimated transit time of the temporary leaving possible IC is included in the available time zone, temporary A configuration may be adopted in which the user is inquired as to whether or not he / she will stop at the drop-in facility associated with the exitable IC. When the user chooses to stop at the stop facility, the user may leave the expressway from the temporary exitable IC to guide a route to the stop facility.

  Further, in the driving support processing of the above embodiment, when there are a plurality of temporary removable IC's in a predetermined number of facilities ahead of the current position of the vehicle in the traveling direction, they are associated with each other. A configuration may be employed that asks whether or not to drop in to the facility. Further, it may be configured to inquire in order from the one closer to the current location of the vehicle among the plurality of temporary exitable ICs. Alternatively, the temporary leaving of only one temporary removable IC (for example, closest to the current location of the vehicle) of a plurality of temporary removable ICs in a predetermined number of facilities ahead of the current direction of the vehicle from the current location of the vehicle The configuration may be such that it asks for a drop-in to a drop-in facility associated with the possible IC.

  Further, the user interface in the above embodiment is an example, and various other configurations may be adopted. For example, in the above embodiment, the button for selecting to stop at the stop-off facility is displayed in the vicinity of the display of the stop-off facility in the schematic of the expressway; It may not be displayed, and the button may be displayed at a predetermined fixed position. Also, it does not have to be displayed in the sketch of the highway. A button may be popped up on the entire screen with a message such as "Do you stop by at the facility?"

  Further, for example, in the above embodiment, the button for selecting to stop at the stop-off facility is displayed, but the button for selecting not to stop at the stop-off facility is also displayed. It is also good. In addition, when these buttons are displayed, voice guidance such as, for example, "There is a road station DD soon. Do you want to stop at the road station DD?" May be carried out. In addition, the user may be configured to select whether or not to stop at the stop-off facility by a method (for example, a specific gesture or voice utterance) other than the operation on the display unit (touch panel) of the user I / F unit 44.

  Further, for example, in the above embodiment, when approaching the temporary leaving possible IC while traveling on the expressway, it is configured to inquire about the approach to the drop-in facility associated with the temporary leaving possible IC. The present invention is not limited to traveling of the vehicle, but may be configured to make an inquiry in another scene. For example, when a destination is set and a route through an expressway is searched, if the route on the expressway includes a temporary exitable IC, a stop-by facility associated with the temporary exitable IC is included. It may be configured to ask for a drop-in. Then, when the user chooses to stop, it may be configured to re-search a route (using the temporary exitable IC) via the stop-by facility and guide the re-searched route.

  It should be noted that the inquiry as to whether or not the drop-in facility associated with the temporary exitable IC should stop at the facility can use the smart IC (for example, the charge settlement information can be transmitted to the communication device installed on the road surface) It may be configured to be performed in the state). In addition, the drop-in facilities associated with the temporary exitable IC may be various facilities other than the roadside station.

  The route search unit can search for a route to drop in to the drop-in facility using the interchange that can be temporarily left out regardless of the setting contents of the availability setting of the smart IC when the drop-in facility is selected to be dropped in Good. For example, in the above embodiment, when the route is not set, the expressway is traveled from the current location to the temporary exitable IC, and the temporary exitable IC withdraws the expressway using the temporary exitable IC and a route toward the stop-by facility is searched. However, it is also possible to search for a route from the drop-in facility to the entrance of the temporary exitable IC (a path for reentering from the temporary exitable IC into the expressway lane in the same direction as before leaving). . For example, after stopping at a stop facility, the user is asked whether or not to re-enter the expressway, and when the user selects to re-enter the freeway, a temporary leaving IC can be used from the stop facility. It is also possible to search for and guide a route before re-entering the expressway.

  Interchanges capable of temporarily leaving the expressway may be interchanges which allow users to receive preferential treatment when they are not considered to be temporary withdrawals. For example, as described above, when leaving the interchange once and re-entering the expressway at the interchange or another interchange, the toll of the expressway is not recalculated (same as the case of not leaving) and the toll. May be preferential. The rules for temporarily exiting interchanges can also assume various rules, and, as mentioned above, other than the rules that require passing through a specific stopover and re-entry within a specific period, There may be various rules.

  The route guiding unit may be able to guide the route searched by the route searching unit. In the above embodiment, when the estimated transit time of the temporary leaving possible IC when traveling the searched route is not included in the available time zone of the temporary leaving possible IC, it is configured not to guide the searched route. However, various other configurations are possible. For example, if the temporary leaving IC is a smart IC attached to PA, the difference between the estimated leaving time of the temporary leaving IC and the start time of the available time zone of the temporary leaving IC is less than a preset threshold time If it is, it may be the composition of guiding the route searched by the route search part. In this case, when the user stands by for a time less than the threshold time in PA, the available time zone of the temporary exitable IC is available, and the temporary exitable IC can leave the expressway to the stop-off facility.

  In addition, the estimated stay time in the stop-by facility may be variably set according to the size of the stop-by facility or the congestion state of the stop-by facility. For example, a large scale facility may have a longer estimated stay time than a small scale facility. Also, for example, a facility that is congested may have an estimated stay time set longer than a facility that is not crowded. Moreover, it may be set based on the history of the past stay time in the stop-by facility of the user. Further, the estimated re-entry time may be a time obtained by adding a period considered to be temporary withdrawal stored in the map information in association with the temporary exitable IC to the estimated withdrawal time.

  Furthermore, as in the present invention, when the user selects to stop at the stop-off facility associated with the interchange which can temporarily leave the expressway, it is possible to temporarily leave regardless of the setting contents of the availability setting of the smart IC. A method of searching for and guiding a route to a stop facility using an interchange is also applicable as a program or method. In addition, the above-described system, program, and method may be realized as a single device or may be realized using parts shared with each part provided in a vehicle, and various aspects are included. It is In addition, it is possible to appropriately change, for example, part is software and part is hardware. Furthermore, the invention is also realized as a recording medium of a program for controlling a system. Of course, the recording medium of the program may be a magnetic recording medium or a semiconductor memory, and the same can be considered in any recording medium developed in the future.

  DESCRIPTION OF SYMBOLS 10 ... Navigation system, 20 ... Control part, 21 ... Driving assistance program, 21a ... Drop-in facility guidance part, 21b ... Route search part, 21c ... Route guidance part, 30 ... Recording medium, 30a ... Map information, 41 ... GNSS reception part , 42: vehicle speed sensor, 43: gyro sensor, 44: user I / F unit, 45: ETC unit, C: present location of vehicle

Claims (3)

A stop-off facility guidance unit that inquires the user whether or not to stop at a stop-off facility associated with an interchange that can temporarily leave the expressway,
A route search unit for searching for a route that drops in to the drop-in facility using the interchange that can be temporarily withdrawn regardless of the setting contents of the availability setting of the smart IC when the drop-in facility is selected to drop-in;
A route guidance unit for guiding the route;
Driver assistance system provided with If the estimated transit time of the interchange that can be temporarily withdrawn is not included in the available time zone of the interchange that can be temporarily withdrawn when traveling on the route and stopping at the drop-in facility, the route is a guide Not,
The driving support system according to claim 1. Computer,
The stop-off facility information section, which asks the user whether or not to stop at the stop-off facility associated with the interchange that can temporarily leave the expressway,
A route search unit for searching for a route to stop at the drop-in facility using the interchange that can be temporarily withdrawn regardless of the setting contents of the availability setting of the smart IC when the drop-in facility is selected to drop-off;
A route guidance unit for guiding the route,
Driving support program to function as.

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