JP2011179935A - Navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system applicable to a service which considers, even if the use of toll roads with an own vehicle temporarily comes off a toll road as their continuous use, prescribed conditions of application are satisfied. <P>SOLUTION: The navigation system includes: a detection means for detecting the position of own vehicle; a display means for displaying a road map of the periphery of the position of the own vehicle on a display; a first determination means for determining whether the own vehicle come off from a specified exit, to which a smart PA of a metropolitan expressway, or the like, is applied; a display mode alteration means for altering the display mode of specified facilities displayed on a road map to another display mode; and a second determination means for determining a point in time for returning the another display mode of the specified facilities to their original display mode, on the basis of the time of exit from the specified exit or the time of reentry into the metropolitan expressway, when own vehicle makes an exit at the specified exit. The display mode alteration means alters the another display mode of the specified facilities to their original display mode, when the second determination means has determined to return the display mode. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation apparatus having a function of guiding a route to a destination, and more particularly, to route guidance and road map display when a resting facility is used on a toll road such as a metropolitan expressway.

  ETC (registered trademark: Electronic Toll Collection SYSTEM), DSRC (Dedicated Short Range Communication), and the like have been put to practical use as data communication methods between roadside devices and vehicle-mounted devices. ETC is a typical automatic toll collection system that can collect tolls automatically without stopping at a toll gate on a toll road. When using ETC, it is necessary to mount an in-vehicle ETC device that can wirelessly communicate with a roadside ETC device.

  The ETC is typically used in interchanges (entrances) that enter public roads from general roads and exits that exit from highways to general roads. An unmanned service that allows ETC gates to be installed in road parking areas and service areas through which entrances and exits are also popular. For example, Patent Document 1 discloses a navigation device that switches a display mode of a landmark of a smart IC according to a setting condition of a user regarding an unattended smart interchange using ETC.

JP 2008-241390 A

  Currently, on toll roads such as the Metropolitan Expressway, the usage fee is uniform regardless of the usage distance, and a system is adopted in which the fee is collected again once getting off the toll road and then entering the toll road. However, on the Metropolitan Expressway, there are not enough rest facilities such as toilets. , You are forced to get off the Metropolitan Expressway and get back on the Metropolitan Expressway at the previous entrance.

  In order to eliminate such inconvenience, a service called a smart parking area (hereinafter abbreviated as “smart PA”) is currently being studied on the Metropolitan Expressway. Smart PA is a system that provides services such as toilet breaks in sections where parking areas are not installed in cooperation with businesses near the Metropolitan Expressway. As an application condition of smart PA, it is necessary to get off the designated exit of the Metropolitan Expressway, use the designated facility, and reenter the Metropolitan Expressway from the designated entrance within a certain time (for example, 2 hours). If this condition is satisfied, the use of the smart PA is regarded as a continuous use of the Metropolitan Expressway and the fee is not collected again. Therefore, the navigation device is required to have a function of appropriately guiding information related to the smart PA.

  The present invention solves the above-described conventional problems, and provides a navigation device applicable to a service that can be regarded as continuous use of a toll road if a certain application condition is satisfied even if it temporarily leaves the toll road. For the purpose.

A navigation device according to the present invention has a function of searching for a route to a destination, and displays a detection means for detecting a vehicle position and a road map around the detected vehicle position on a display. When the display means and the designated exit associated with the designated exit are exited, the designated facility associated with the designated exit is used, and the toll road is re-entered within a certain time from the designated entrance associated with the designated exit. A toll road that provides a service that is regarded as a use, and a first judging means for judging whether or not the vehicle leaves the designated exit of the toll road, and display of the designated facility displayed on the road map Display mode changing means for changing the mode to another display mode, and when the own vehicle is determined to leave the designated exit, the designated facility is displayed in another display mode based on the exit time information from the designated exit. Second determining means for determining when to return to the original display mode, and when the second determining means determines that the display mode is to be returned, the display mode changing means displays on the road map. The other display mode of the facility facility is changed to the original display mode.
Preferably, the second determination means returns the designated facility to the original display mode when the vehicle position is within a predetermined distance from the designated entrance and the exit time from the designated exit exceeds a prescribed value. judge. Preferably, the second determination means determines to return the designated facility to the original display mode when the expected arrival time from the vehicle position to the designated entrance exceeds the certain time.

  Further, the navigation device according to the present invention has a function of searching for a route to the destination, and includes a detection means for detecting the vehicle position and a road map around the detected vehicle position on the display. Display means to exit from the designated exit of the toll road, use the designated facility associated with the designated exit, and re-enter the toll road within a certain time from the designated entrance associated with the designated exit. A toll road that provides a service that is regarded as a continuous use, the first judging means for judging whether or not the vehicle leaves the designated exit of the toll road, and a designated facility displayed on the road map; Display mode changing means for changing the display mode to another display mode, and when the own vehicle is determined to leave the specified exit, the specified facility is set to another display mode based on the available time of the specified facility. And a second determination unit that determines when to return to the original display mode, and when the second determination unit determines that the display mode is to be returned, the display mode change unit displays on the road map. The other display mode of the facility facility is changed to the original display mode.

  Preferably, the second determination unit determines to return the designated facility to the original display mode when the designated facility is out of the available time. Preferably, the second determination unit determines to return the designated facility to the original display mode when the estimated arrival time from the vehicle position to the designated facility is outside the available time of the designated facility. Preferably, the second determining means determines that the designated facility is returned to the original display mode when the host vehicle arrives at the designated facility. Preferably, the display means displays a route from the designated exit to the designated facility in the same color as the toll road.

Further, the navigation device according to the present invention has a function of searching for a route to the destination, and includes a detection means for detecting the vehicle position and a road map around the detected vehicle position on the display. Display means, route search means for searching for a route to the destination, exit from a designated exit of the toll road, use a designated facility associated with the designated exit, and for a certain time from the designated entrance associated with the designated exit 1st determination means for determining whether or not the vehicle exits from the designated exit of the toll road, which is a toll road that provides a service that is regarded as continuous use of the toll road when re-entering the toll road within Display mode changing means for changing the display mode of the designated facility displayed on the road map to another display mode, and when it is determined that the vehicle leaves the designated exit, the designated exit Second determination means for determining whether or not the final exit on the route to the destination corresponds to the display, and when the second determination means determines that the designated exit corresponds to the final exit, the display A mode change means changes the other display mode of the facility facilities displayed on the said road map to the original display mode.
Preferably, the other display mode includes a landmark indicating that the designated facility is a facility affiliated with the service. Preferably, the landmark includes a distinction between a parking area or a service area.

  According to the present invention, the display mode of the designated facility is changed until the designated facility is available, so that the position of the designated facility to which the service is applied can be recognized at a glance.

It is a figure explaining the outline | summary of smart PA. It is a typical block diagram of an ETC system. It is a figure which shows the structure of the navigation apparatus which concerns on the Example of this invention. It is a figure which shows the example of a memory | storage of road classification data and node data. It is an example of the table which shows the relationship between the designated exit regarding smart PA, a designated entrance, and a designated facility. It is a figure which shows the example of a memory | storage of the information regarding a designated facility. It is a functional block diagram of the smart PA guidance program shown in FIG. It is an operation | movement flowchart of the navigation apparatus based on 1st Example of this invention. It is a figure which shows the example of a display of the designation | designated facility of 1st Example of this invention. It is a figure which shows the example of a display of the designation | designated facility of 1st Example of this invention. It is an operation | movement flowchart of the navigation apparatus which concerns on 3rd Example of this invention. It is a figure explaining operation | movement of the 3rd Example of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. The navigation device of the present invention can be suitably applied to a service that is regarded as continuous use of a toll road if a certain application condition is satisfied when temporarily leaving and re-entering the toll road for a break or the like. . More specifically, for a service that applies from the designated exit of the toll road, using the designated facility related to the designated exit, and returning to the toll road within a certain time from the designated entrance related to the designated exit 1 illustrates a suitable navigation device.

  In the following examples, the Metropolitan Expressway is targeted as a toll road, and if you exit the designated exit of the Metropolitan Expressway and use the designated facility within 2 hours and return to the Metropolitan Expressway from the designated entrance, A smart PA service will be described as an example that is regarded as continuous use of the road and does not collect additional charges.

  FIG. 1 is a diagram for explaining an outline of a smart PA. FIG. 1A shows a first usage mode of a smart PA, which goes down from a designated exit Ex of a capital expressway HW to a general road RD, uses a designated facility LA, and returns to a capital expressway HW from a designated entrance En again. . In the first mode of use, the designated exit Ex and the designated entrance En are set to the same interchange IC. Therefore, a vehicle that has exited the Metropolitan Expressway HW travels on the same road RD on the way to and from the Metropolitan Expressway. I will re-enter HW.

  FIG. 1B shows a second usage mode. In the second mode of use, the vehicle that has exited from the designated exit Ex of the Metropolitan Expressway HW passes through the general road RD1 to the designated facility LA, and then passes through the general road RD2 from the designated entrance En to the Metropolitan Expressway HW. enter. In the second usage mode, the designated exit Ex and the designated entrance En are set at different interchanges IC1 and IC2, and the route from the metropolitan expressway and the return route are different.

  In order to use the smart PA service, an in-vehicle ETC device capable of wireless communication is required to be mounted on the vehicle. FIG. 2 shows a typical system for using the ETC service. The roadside ETC device 1 is installed at the interchange entrance and / or exit gate of the Metropolitan Expressway HW, and performs wireless communication with the in-vehicle ETC device 2 of the vehicle passing there. The smart PA can also be installed at the entrance gate of the designated facility LA to determine whether or not the designated facility LA has been used.

  Next, an outline of the operation of the ETC system shown in FIG. 2 will be described. When the own vehicle enters the Metropolitan Expressway, the in-vehicle ETC device 2 transmits a signal including the own vehicle ID to the roadside ETC device 1. The roadside ETC device 1 authenticates the received vehicle ID, and when the authentication is successful, the roadside ETC device 1 transmits a signal including entrance toll gate identification information, entry time information, and billing information to the in-vehicle ETC device 2. This signal is received by the in-vehicle ETC device 2 and recorded in the in-vehicle ETC device 2. In the case of the Metropolitan Expressway, the fee is fixed regardless of the distance traveled, so it is charged when entering the Metropolitan Expressway. In the case of a metered highway where the fare increases according to the travel distance, when the vehicle leaves the highway, the roadside ETC device 1 calculates the travel section, and charging information corresponding to the travel section is provided. It transmits to the in-vehicle ETC device 2.

  When receiving the service of the smart PA, when the own vehicle re-enters the Tokyo Metropolitan Expressway, the roadside ETC device 1 collates the data received from the in-vehicle ETC device 2, and the own vehicle has exited from the designated exit. Confirm that the designated facility has been used and that the designated entrance has been re-entered within two hours after leaving the designated exit. If this confirmation is made, it will be regarded as continuous use of the Metropolitan Expressway and no charge will be made for re-entry.

  Next, FIG. 3 shows the configuration of the navigation device of this embodiment. The navigation device 10 according to the present embodiment is connected to the in-vehicle ETC device 2 (see FIG. 2), information transmitted / received by the in-vehicle ETC device 2 is provided to the control unit 120, and control adapted to ETC or smart PA is performed. . The navigation device 10 according to the present embodiment includes a bus interface (I / F) 20 that transmits / receives data to / from the in-vehicle ETC device 2, a GPS receiver 30 that receives a signal from a GPS satellite and detects the position of the vehicle, and a VICS. Memory such as a VICS receiver 40 that receives road traffic information distributed from the center, an input unit 50 that receives input from the user, a communication control unit 60 that performs data communication with an external device via wireless or wired communication, and a large-capacity hard disk A storage unit 70 including a medium, an audio output unit 80 for outputting audio from a speaker 82, a display control unit 90 for displaying an image such as a road map on a display 92, a program memory 100 for storing a program, and temporarily storing data The data memory 110 includes a control unit 120 that controls each unit by executing a program. It is.

  The bus I / F 20 includes a signal detected by a self-contained navigation sensor (for example, a vehicle speed sensor, an acceleration sensor, a gyro sensor, etc.), a signal indicating on / off of parking of the own vehicle, an ETC from the in-vehicle ETC device 2, and a smart PA. The information regarding is received and provided to the control unit 120. The VICS receiver 40 receives real-time traffic jam information and regulation information distributed from the VICS center side through optical beacons, radio beacons, FM multiplex broadcasting, and the like, and provides them to the control unit 120. The input unit 50 includes an operation (touch) panel 52 provided alongside the display 92, a voice input unit 54 that enables input by voice, and a remote controller 56.

  The storage unit 70 stores road map data necessary for navigation. The road map data includes link data for identifying roads, node data for identifying intersections, facility data for identifying POIs such as facilities, and the like. The link data includes road type, road name, width, regulation, coordinates of start node and end node, and the like. The intersection node includes information indicating a connection relationship with the start node and the end node of the link node and information such as an intersection type. The facility data includes information on various facilities such as restaurants, gas stations, sightseeing spots, for example, the category (or genre) of the facility, landmarks (or icons) corresponding to the facility data, the coordinates of the facility, and the like.

  As shown in FIG. 4A, the road type data includes information for identifying whether the link corresponds to a capital expressway, a highway, or a general road. Further, the road type data can include identification information as to whether or not the road is subject to smart PA. For example, if the metropolitan expressway is a smart PA target route, the binary information flag is set to H.

  As shown in FIG. 4B, the node data includes information for identifying whether the node corresponds to an interchange such as an intersection of general roads or a metropolitan expressway. When the node corresponds to an interchange, It contains information identifying whether it is an exit only, an entrance only, or both an exit and an entrance. Further, in the case of an interchange, it includes information for identifying whether the exit or entrance corresponds to a designated exit or designated entrance that is a target of a smart PA, for example, a designated exit or designated entrance that is a subject of a smart PA. If so, the binary information flag is set to H. These pieces of information are used to determine whether or not to use the smart PA when the own vehicle leaves the exit of the Metropolitan Expressway.

  Further, as information for determining the use of the smart PA, the storage unit 70 stores information indicating the mutual relationship between the designated exit, the designated entrance, and the designated facility as shown in FIG. In the smart PA, it is necessary to leave the designated exit, use the designated facility associated with the designated exit, and enter from the designated entrance associated with the designated exit, and the table of FIG. 5 defines these relationships. For example, when getting off the Metropolitan Expressway from the designated exit Ex1, it is necessary to re-enter from the designated entrance En1, and at that time, it is necessary to use the designated facility LA1. Moreover, when getting off from the designated exit Ex2, it is necessary to re-enter from the designated entrance En2 or En3 using either the facility LA2 or LA3. The number of designated entrances and designated facilities related to the designated exit is not necessarily limited to one.

  Furthermore, as shown in FIG. 6, the storage unit 70 stores specified facility information that is referred to when the display mode of the specified facility is changed. The designated facility information includes, for example, a designated facility ID for identifying the designated facility, attribute information indicating the attribute of the designated facility, information on a normal display mode of the designated facility, and an SPA display mode indicating that the smart PA is applied. Contains information. The attribute information includes the available time (business hours) of the designated facility, the genre of the designated facility, and the like. The normal display mode includes information related to landmarks and the like of designated facilities displayed on the road screen in a normal state, and includes, for example, a landmark representing a gas station, a supermarket, a parking lot, or a storage address of the landmark. The SPA display mode includes information on a landmark indicating that the designated facility is a partner of the smart PA. This display mode may be different from the normal display mode, may be a landmark of a different size, size, and color from the normal display mode, or may be a landmark of a completely different design. May be. In this example, the SPA display mode includes a landmark of SA (service area) or PA (parking area).

  The program memory 100 includes a host vehicle position detection program 102 that detects a host vehicle position based on a detection signal from a self-contained navigation sensor or a GPS receiver 30, a host vehicle position, a transit point (stopping place), and other positions. A route search program 104 that searches for and guides the optimum route to the guidance route, a smart PA guidance program 106 that controls the display mode of route guidance and designated facilities when using the smart PA, and the like are included. The data memory 110 includes vehicle position information 112 detected by the vehicle position detection program, road map data 114 around the vehicle position read from the storage unit 70, guidance route information 116 searched by the route search program 104, smart Information 118 on the use of PA is stored.

  FIG. 7 is a functional block diagram of the smart PA guidance program 106 of the navigation device of FIG. The smart PA guidance program 106 includes a designated exit determination unit 150 that determines whether or not the exit corresponds to a designated exit to which smart PA is applied when the vehicle gets off the interchange exit of the Metropolitan Expressway. A display mode changing unit 152 that changes the display mode of a smart PA indicating that smart PA is applied from a normal display mode to a facility displayed on a road map, or vice versa, and a normal display A change start determination unit 154 that determines a start point for changing from a display mode to a smart PA display mode, a change end determination unit 156 that determines an end point to change from a smart PA display mode to a normal display mode, and the vehicle Search for the time measurement unit 158 that measures the elapsed time since leaving the designated exit, and information such as the facility display mode and available time That and a facility information search unit 160.

  The own vehicle position is detected by the GPS receiver 30 or a self-contained navigation sensor, and the detected own vehicle position is map-matched to road map data. The designated exit determination unit 150 determines whether or not the exit corresponds to the designated exit of the smart PA when the map-matched vehicle position coincides with the interchange exit of the Metropolitan Expressway. Whether it corresponds to the designated exit is determined by referring to the flag of the interchange information in FIG. 4B, for example.

  The landmark of the facility is displayed on the road map screen. When the change start determination unit 154 determines that a certain start condition is satisfied, the display mode change unit 152 displays the facility landmark as a normal landmark. The display mode is changed to the landmark of smart PA. Further, when the change end determination unit 156 determines that a certain end condition is satisfied, the display mode change unit 152 changes the smart PA landmark of the designated facility to a normal landmark.

  The change start determination unit 154 preferably determines that the start condition is satisfied when the facility is displayed on the road map screen on the display while the host vehicle is traveling on the Metropolitan Expressway. In this case, the change start determination unit 154 determines whether the facility on the road map screen corresponds to the designated facility with reference to the designated facility ID in FIG. Alternatively, the change start determination unit 154 may determine that the start condition for changing the display mode of the facility is satisfied when it is determined that the own vehicle has left the designated exit. Alternatively, when the facility is displayed on the road map screen and the vehicle leaves the designated exit, it may be determined that the start condition for changing the display mode of the facility is satisfied.

  The change end determination unit 156 determines an end condition for ending the change of the display mode of the facility based on the exit time from the designated exit or the time that must be re-entered on the Metropolitan Expressway. The leaving time or the time until re-entry can be measured by the time measuring unit 158 or calculated from the measurement result. As will be described later in detail, the change end determination unit 156 determines whether the vehicle does not return to the designated entrance within 2 hours, or if the vehicle cannot return to the designated entrance within 2 hours, from the vehicle position to the designated entrance. Considering the road traffic information (such as traffic jam) on the route, it is determined that the end condition is satisfied, for example, when the designated entrance cannot be returned within 2 hours. The designated entrance related to the designated exit can be searched with reference to the table of FIG. For example, if exiting from the designated exit Ex1, the designated entrance En1 is searched. Also, whether or not the designated entrance can be returned within 2 hours is determined from the expected arrival time at the designated entrance by searching the route from the vehicle position to the designated entrance.

  When it is determined that the own vehicle leaves the designated exit, the time measuring unit 158 counts the elapsed time from that point. Alternatively, the remaining time until re-entry may be counted. The facility information retrieval unit 160 refers to the table shown in FIG. 6 and retrieves the attribute information and display mode information of the designated facility. The display mode change unit 152 changes the display mode of the facility using this search result. In addition, the display mode changing unit 152 generates information for changing such landmarks and supplies the information to the display control unit 90. In addition to changing the landmark of the facility, the display mode changing unit 152 controls the display mode of the recommended route when displaying the recommended route to the designated facility or the designated entrance.

  Next, the operation of the navigation apparatus according to the first embodiment of the present invention will be described with reference to the flowchart of FIG. Here, it is assumed that the user is traveling on the Tokyo Metropolitan Expressway without searching for a route to the destination. The host vehicle position is detected as the host vehicle travels, and the display control unit 90 displays a road map on the display 92 based on the road map data around the host vehicle position read from the storage unit 70 (step S101). The road map screen is scrolled and updated sequentially as the vehicle travels.

  Next, the change start determination unit 154 determines whether or not the own vehicle is traveling on the Tokyo Metropolitan Expressway (step S102). This determination is made by referring to the road type of the link data on which the vehicle is traveling. If it is determined that the vehicle is traveling on the Tokyo Metropolitan Expressway, then the change start determination unit 154 determines whether or not a facility landmark (icon) is displayed on the road map screen (step S103). When the landmark of the facility is displayed, it is determined whether or not the facility corresponds to a designated facility to which smart PA is applied (step S104). FIG. 9A shows a state in which the landmark LA of the facility 200 and the landmark Q of the facility 210 are displayed while the host vehicle M is traveling on the capital highway HW. The change start determination unit 154 determines whether or not the facilities 200 and 210 correspond to designated facilities with reference to the table of FIG. Here, it is assumed that the facility 200 corresponds to the designated facility and the facility 210 does not correspond to the designated facility.

  Next, when the change start determination unit 154 determines that the facility is a designated facility, the facility information search unit 160 searches the designated facility from the table of FIG. 6 and extracts information on the PA display mode. The extracted information is provided to the display mode changing unit 152. The display mode changing unit 152 changes the facility display mode to the smart PA display mode (step S105). FIG. 9B shows an example in which the landmark LA of the facility 200 is changed to an SA (service area) landmark indicating that it is a designated facility.

  Next, the route search program 104 searches for a recommended route to the designated facility, and based on the search result, the display mode changing unit 154 displays the recommended route on the road map screen (step S106). In general, the Metropolitan Expressway and the general road are displayed in different colors on the road map, but when the recommended route is displayed, it is displayed in the same color as the Metropolitan Expressway, and the designated facility 210 is as if it is the capital city. Recall that it is a highway service area. Note that the route search program 104 searches the table of FIG. 5 for the designated exit Ex related to the designated facility 200, and searches for a recommended route from the designated exit Ex to the designated facility.

  FIG. 9C shows the state where the recommended route is displayed in an easy-to-understand manner. The Metropolitan Expressway HW is displayed in, for example, green (indicated by hatching in the figure), and the recommended route R from the designated exit Ex to the designated facility 200 is also displayed in green (indicated by hatching in the figure). The

  Next, the designated exit determination unit 150 determines whether or not the own vehicle leaves the designated exit (step S107). If it is determined that the vehicle exits from the designated exit, the time measuring unit 158 starts measuring time from the time of leaving in response to the determination result (step S108). At the same time, the change end determination unit 156 starts determining when to return the designated facility display mode to the original display mode. When the user exits the capital expressway without leaving the designated exit, the landmark display of the designated facility is erased from the screen along with the scrolling of the road map screen.

  The change end determination unit 156 determines whether or not to return the landmark of the designated facility to the normal landmark based on the time information measured by the time measurement unit 158 (step S109). The aspect changing unit 152 changes the facility landmark to the normal display and deletes the recommended route (step S110). FIG. 10A shows a state where the vehicle M has left the designated exit Ex, and the landmark SA of the facility 200 is continuously displayed (however, the recommended route R is omitted). FIG. 10B shows a state in which the change of the display mode is determined to be ended by the change end determination unit 156, and the landmark of the facility 200 is returned to the normal landmark.

Next, a preferable determination criterion for ending the change of the designated facility landmark will be described. The change end determination unit 156 continues the SPA display mode of the designated facility until the designated facility is used.
In the first determination example, the change end determination unit 156 determines to return the display mode of the designated facility to the original display mode when the host vehicle arrives at the specified facility. Whether or not the own vehicle has arrived at the designated facility is determined, for example, when the vehicle position is map-matched to the designated facility, or when the roadside ETC device is installed at the designated facility, the in-vehicle ETC device and the roadside ETC device This is done by confirming that authentication has been performed with the.
In the second determination example, the change end determination unit 156 determines that the display mode of the designated facility is restored when the time measured by the time measurement unit 158 exceeds a certain time. For example, when two hours have passed after leaving the designated exit, it is determined that the designated facility is not used because the smart PA cannot be applied. In addition, the elapsed time is not necessarily 2 hours, and it may be determined that the designated facility is not used even if it exceeds 2 hours from the expected arrival time when traveling from the current vehicle position to the designated facility. Good.
In the third determination example, when the own vehicle exists within a range not exceeding two hours from the expected arrival time when traveling from the own vehicle position to the designated entrance, and a certain time has elapsed since the exit from the designated exit, Restore the display mode of the designated facility. In this case, it is determined that there is no intention to be in a position where it can be re-entered from the designated entrance. Note that the fixed time corresponds to the time when the vehicle is traveling on a general road, and how much time can be set can be set as appropriate.
In the fourth determination example, the estimated arrival time when traveling from the vehicle position to the designated entrance exceeds 2 hours. Preferably, the route search program 104 searches for a recommended route from the vehicle position to the designated entrance, and considers real-time traffic jam information obtained from VICS and other road traffic information, and calculates the expected arrival time to the designated entrance. calculate. Even in such a case, since it is difficult to receive the application of the smart PA, it is determined that the designated facility is not used, and it is meaningless to continue the SPA display mode.

  Next, a second embodiment of the present invention will be described. In the first embodiment, the timing for ending the display mode of the designated facility is determined mainly based on the time information from the time of leaving the designated exit. In the second embodiment, the available time of the designated facility is considered. The timing to end the display mode of the designated facility is determined. The operation flow is the same as in the first embodiment shown in FIG. 8, but if it is determined that the vehicle has left the designated exit (step S107), the facility information search unit 160 will The available time (or business hours) included in the attribute information of the designated facility is searched with reference to the table, and the timing for returning the display mode of the designated facility to the original is determined based on the available time.

In the first determination example, when the current time of the host vehicle is outside the available time of the designated facility, the display mode of the designated facility is restored. A facility is not always available for 24 hours, and if it is not available, there is no point in continuing the SPA display mode of the designated facility.
In the second judgment example, the expected arrival time when traveling from the vehicle position to the designated facility is obtained, and this is used as a reference when the vehicle is unable to arrive by the facility availability time. Restore the SPA display mode of the facility.
In the third determination example, even if the designated exit point of the Metropolitan Expressway is before the designated facility's business start time, if the scheduled arrival time is after the business start time, the designated facility The display mode is continued.
In the fourth determination example, the display mode of the designated facility is continued until it becomes impossible to arrive at the designated entrance within 2 hours including the available time of the designated facility. For example, if the designated facility is available at 9:00 AM, and you wait for 9:00 AM and you can reach the designated entrance within 2 hours, change the SPA display mode of the designated facility at that time. Revert.

  Next, a third embodiment of the present invention will be described with reference to the flowchart of FIG. The third embodiment relates to a facility display operation when a destination is set by a user and a route to the destination is guided. Steps S101 to S107 shown in FIG. 11 are basically the same as those in the first embodiment.

  When it is determined that the vehicle exits from the designated exit, the change end determination unit 156 determines whether or not the designated exit matches the final interchange exit (hereinafter referred to as the final exit) defined on the route to the destination. Is determined (step S108). For example, as shown in FIG. 12A, when a route R1 to the destination G is being searched for, when leaving the designated exit Ex of the route R1 to travel to the destination G and traveling on a general road, Exit Ex is the final exit on the route. On the other hand, as shown in FIG. 12B, when the route R2 is searched for going to the destination G, the route R2 leaves the final exit Ex1, travels on a general road, and reaches the destination G. In this case, the designated exit Ex does not correspond to the final exit on the route. When the designated exit Ex coincides with the final exit on the route, it is determined that the designated exit Ex is exited to go to the destination G and not for using the designated facility. Therefore, when the designated exit matches the final exit, the change end determination unit 156 returns the display mode of the designated facility to the original normal display (step S110). On the other hand, if the designated exit does not coincide with the final exit, the end of the SPA display mode of the designated facility is judged according to the same criteria as in the first embodiment (step S121).

The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the present invention described in the claims. Deformation / change is possible.
In the above embodiment, the timing for terminating the display mode of the designated facility is determined based on the exit time from the designated exit (or the time until re-entry to the designated entrance) and the available time of the designated facility. The user can select whether or not to execute the determination.
In the above embodiment, the smart PA on the Metropolitan Expressway is exemplified, but the present invention can be applied to the same system on other toll roads. In addition, although the first to third embodiments are illustrated, the first to third embodiments can be appropriately combined.

10: Navigation device 20: Bus interface (I / F)
30: GPS receiver 40: VICS / FM multiplex receiver 50: input unit 60: communication control unit 70: storage unit 80: audio output unit 90: display control unit 100: program memory 110: data memory 120: control unit 200, 210 : Facility landmarks R, R1, R2: Route HW: Metropolitan Expressway Ex: Designated exit LA: Designated facility En: Designated entrance Q: Normal facility

Claims (11)

A navigation device having a function of searching for a route to a destination,
Detection means for detecting the vehicle position;
Display means for displaying a road map around the detected vehicle position on the display;
A service that leaves the designated exit of a toll road, uses a designated facility related to the designated exit, and re-enters the toll road within a certain period of time from the designated entrance associated with the designated exit. First determination means for determining whether or not the own vehicle leaves the designated exit of the toll road,
Display mode changing means for changing the display mode of the designated facility displayed on the road map to another display mode;
Second determination means for determining a time point at which the designated facility is returned from another display mode to the original display mode based on exit time information from the specified exit when it is determined that the own vehicle is to leave the specified exit. Have
When it is determined by the second determination means that the display mode is to be returned, the display mode changing means changes another display mode of the facility facility displayed on the road map to the original display mode. The second determination means determines that the designated facility is returned to the original display mode when the vehicle position is within a predetermined distance from the designated entrance and the exit time from the designated exit exceeds a prescribed value. The navigation device according to claim 1. 2. The navigation device according to claim 1, wherein the second determination unit determines to return the designated facility to the original display mode when an expected arrival time from the vehicle position to the designated entrance exceeds the predetermined time. . A navigation device having a function of searching for a route to a destination,
Detection means for detecting the vehicle position;
Display means for displaying a road map around the detected vehicle position on the display;
A service that leaves the designated exit of a toll road, uses a designated facility related to the designated exit, and re-enters the toll road within a certain period of time from the designated entrance associated with the designated exit. First determination means for determining whether or not the own vehicle leaves the designated exit of the toll road,
Display mode changing means for changing the display mode of the designated facility displayed on the road map to another display mode;
And a second determination means for determining when to return the designated facility from another display mode to the original display mode based on an available time of the designated facility when it is determined that the own vehicle leaves the designated exit. And
When it is determined by the second determination means that the display mode is to be returned, the display mode changing means changes another display mode of the facility facility displayed on the road map to the original display mode. The navigation device according to claim 4, wherein the second determination unit determines to return the designated facility to the original display mode when it becomes out of the available time of the designated facility. The said 2nd determination means determines to return the said designated facility to the original display mode, when the estimated arrival time from the own vehicle position to the said designated facility is outside the available time of the said designated facility. The navigation device described in 1. The navigation device according to claim 4, wherein the second determination unit determines to return the designated facility to the original display mode when the own vehicle arrives at the designated facility. The navigation device according to any one of claims 1 to 7, wherein the display unit displays a route from the designated exit to the designated facility in the same color as the toll road. A navigation device having a function of searching for a route to a destination,
Detection means for detecting the vehicle position;
Display means for displaying a road map around the detected vehicle position on the display;
Route search means for searching for a route to the destination;
A service that leaves the designated exit of a toll road, uses a designated facility related to the designated exit, and re-enters the toll road within a certain period of time from the designated entrance associated with the designated exit. First determination means for determining whether or not the own vehicle leaves the designated exit of the toll road,
Display mode changing means for changing the display mode of the designated facility displayed on the road map to another display mode;
A second determining means for determining whether or not the designated exit corresponds to a final exit on a route to a destination when it is determined that the own vehicle exits from the designated exit;
When it is determined by the second determination means that the designated exit corresponds to the final exit, the display mode changing unit changes the other display mode of the facility facility displayed on the road map to the original display mode. Navigation device. The navigation device according to claim 1, wherein the other display mode includes a landmark indicating that the designated facility is a facility affiliated with the service. The navigation device according to claim 10, wherein the landmark includes a distinction between a parking area and a service area.

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