JP2011158314A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a 'navigation device' which is usable to service for considering the continuous use of a toll road when a constant use condition is satisfied even if a vehicle temporarily leaves from the toll road. <P>SOLUTION: The navigation device includes: a detection means for detecting the position of an own vehicle; a display means for displaying a road map on a display; a determination means for determining whether the toll road in use is a road providing the service for considering the continuous use of the toll road when the vehicle leaves the toll road from its designated from an exit, utilizes a designated facility relevant to the designated exit, and enters the toll road again within a predetermined period of time from a designated entrance relevant to the designated exit, and determining whether or not the own vehicle leaves the toll road from its designated exit; and a display control means for displaying designated facilities and designated entrances relevant to the designated exit while distinguishing them when it is determined that the vehicle leaves the road from the designated exit. Desirably, landmarks for the designated facilities and designated entrances are displayed while being emphasized so as to be different from others. <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 related to 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 determination means that determines whether or not the vehicle exits from the designated exit of the toll road; Display control means for identifying and displaying related designated facilities and designated entrances on the road map.

  Preferably, the display control means identifies and displays the landmarks indicating the designated facility and the designated entrance so as to be distinguished from the landmarks indicating the non-designated facility and the non-designated entrance. Preferably, the navigation device further includes search means for searching for a route to the designated facility and the designated exit when it is determined to leave the designated exit, and the display control means is a route searched by the search means. Is identified and displayed on the road map. Preferably, the display control means displays category information to which a designated facility related to the designated exit belongs. Preferably, the navigation device further includes search means for searching each route to the specified facilities in a time-first manner when there are a plurality of specified facilities related to the specified exit, and the display control means is provided by the search means. The searched route is identified and displayed on the road map according to time priority. The navigation device further includes a search unit that searches each route to the plurality of designated facilities with distance priority when there are a plurality of designated facilities related to the designated exit, and the display control unit is searched by the search unit. The route can be identified and displayed on the road map according to distance priority. The navigation device may further include user input means for selecting one of the plurality of routes when the display control means displays a plurality of routes on the road map. Preferably, the display control means identifies and displays the section of the toll road from the designated exit where the vehicle has left to the designated entrance to be re-entered so as to be distinguished from others. Further, the display control means can identify and display a certain section of the toll road ahead of the designated entrance to be re-entered so as to be distinguished from others.

  The road map display method of the navigation device of the present invention exits from a designated exit of a toll road, uses a designated facility associated with the designated exit, and re-enters the toll road within a certain time from the designated entrance associated with the designated exit. A step of determining whether or not the vehicle has left the designated exit of the toll road when using a toll road that provides a service that is considered to be continuous use of the toll road when entering, the designated exit A designated facility and a designated entrance associated with the designated exit are identified and displayed on a road map.

  According to the present invention, when traveling on a toll road to which a service that is regarded as continuous use of a toll road is applied even if an external facility is used, the designated facility and the designated entrance are identified and displayed. It can be easily recognized at a glance whether it exists. Further, when there are a plurality of designated facilities, a desired designated facility can be easily selected. Further, when the designated entrance is not adjacent to the designated exit, it is prevented that the entrance to the toll road is accidentally re-entered from the undesignated entrance.

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 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 an example of a display of the road map of 1st Example of this invention. It is an operation | movement flowchart of the navigation apparatus which concerns on 2nd Example of this invention. It is a display example of the road map of 2nd 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 display example of the road map of the 3rd example of the present invention. It is a display example of the search result of distance priority and time priority of the fourth embodiment of the present invention. It is an operation | movement flowchart of the navigation apparatus based on the 5th Example of this invention. It is a display example of the road map of the 5th example of the present 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 the smart PA, which goes down from the designated exit Ex of the capital expressway H to the general road R1, uses the designated facility LA, and returns to the capital expressway H from the 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, so that a vehicle that has exited the Metropolitan Expressway H travels on the same road R1 on the way to and from the Metropolitan Expressway. Re-enter H.

  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 H passes through the general road R1 to the designated facility LA, and then passes through the general road R2 to the Metropolitan Expressway H from the designated entrance En. 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 entrance and exit gates of the interchange on the Metropolitan Expressway H, and performs wireless communication with the vehicle-mounted ETC device 2 of the vehicle passing there. The smart PA is also installed at the entrance gate of the designated facility LA in order 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 distance traveled, when the vehicle exits the highway, the roadside ETC device 1 calculates the travel section, and charging information corresponding to the travel section is provided in the vehicle. Transmit to the 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 of this embodiment is connected to the in-vehicle ETC device 2 (see FIG. 2), and the information transmitted and received by the in-vehicle ETC device 2 is provided to the control unit 120, and control adapted to ETC and smart PA is performed. Is called. 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 symbol marks) corresponding to the facility data, and the coordinates of the facility.

  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 target route of smart PA, the 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 flag is set to H. These pieces of information are used to determine whether or not to use the smart PA when the vehicle gets off the exit of the Metropolitan Expressway.

  Further, as information for determining 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 exit from 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.

  The program memory 100 is a vehicle position detection program 102 that detects the position of the vehicle based on a detection signal from the self-contained navigation sensor or the GPS receiver 30, a vehicle position, a transit point, and other positions to a destination and a guidance route A route search program 104 that searches for and guides an optimal route, a smart PA guidance program 106 that performs route guidance 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. 6 is a functional block diagram of the smart PA guidance program 106 of the navigation apparatus 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. When it is determined that the exit from the designated exit, the designated facility search unit 152 that searches for the designated facility related to the designated exit, and when the exit from the designated exit is determined, the designation related to the designated exit Arrived at the designated facility, a designated entrance search unit 154 for retrieving the entrance, an identification display control unit 156 for identifying and displaying the designated facility, the designated entrance and the route to reach the designated facility on the road map displayed on the display A designated facility arrival determination unit 158 that determines whether or not the designated facility has arrived, and a designated entrance arrival determination unit 160 that determines whether or not the arrival has arrived at the designated entrance.

  The own vehicle position detection program 102 detects the own vehicle position from the outputs of the GPS receiver 30 and the 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 matches the 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 designated facility search unit 152 searches for a designated facility related to the designated exit with reference to the table of FIG. For example, when it is determined that the exit from the designated exit Ex2, the designated facilities LA2 and LA3 related to the designated exit Ex2 are searched. Further, the designated facility search unit 152 searches the storage unit 70 for information on the searched designated facilities LA2 and LA3, for example, information such as genre, landmark, and coordinates.

  The designated entrance search unit 154 searches for a designated entrance related to the designated exit with reference to the table of FIG. For example, when it is determined that the vehicle exits from the designated exit Ex2, the designated entrances En2 and En3 are searched. Further, the designated entrance searching unit 154 searches the storage unit 70 for node information regarding the searched designated entrance.

  The identification display control unit 156 performs display control such that the designated facility and the designated entrance are identified and displayed on the road map on the display. Preferably, a landmark (or symbol mark) indicating a designated facility is displayed so as to be distinguished from a landmark of another facility, or a landmark (or symbol mark) indicating a designated entrance is a landmark of an interchange not designated. To be identified. For example, landmarks at designated facilities and designated entrances are displayed in a color different from other landmarks or are identified and displayed in a color that increases the contrast with the background. As another display mode, landmarks indicating designated facilities and designated entrances are identified or highlighted so as to be larger than landmarks of other facilities or non-designated interchange entrances. Or you may make it easy to distinguish from other landmarks by blinking the landmark of a designated facility or a designated entrance. The identification display control unit 156 generates information for changing the display form of such landmarks and supplies the information to the display control unit 90.

  Furthermore, in addition to the landmark identification display, the identification display control unit 156 displays the route to the designated facility or designated entrance so that the route is identified, or when there are a plurality of designated facilities, Display control is performed so that the route to each designated facility is identified, or the designated exit and designated entry section on the Tokyo Metropolitan Expressway are identified and displayed. Further, the identification display control unit 156 additionally displays the category (genre) of the designated facility with characters as will be described later.

  The designated facility arrival determination object 158 preferably determines that the vehicle has arrived at the designated facility when the vehicle position is map-matched to the designated facility. The designated entrance arrival determination unit 160 preferably determines that the vehicle has arrived at the designated entrance when the vehicle position is map-matched to 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. As the host vehicle travels, the host vehicle position detection program 102 detects the host vehicle position (step S101), and road map data around the host vehicle position is read from the storage unit 70. The read road map data is displayed on the display 92 by the display control unit 90 (step S102). The display of the road map on the display is sequentially updated as the vehicle travels.

  When the own vehicle leaves the exit Ex of the Metropolitan Expressway as shown in FIG. 8A, for example, the designated exit determination unit 150 determines whether the exit Ex corresponds to the designated exit that is the target of the smart PA ( Step S103). When it is determined that the host vehicle is leaving the designated exit Ex, the designated facility search unit 152 searches for a designated facility related to the designated exit Ex (step S104). This search is executed with reference to the table shown in FIG. Further, the designated entrance searching unit 154 searches for a designated entrance related to the designated exit Ex with reference to the table shown in FIG.

  Next, the identification display control unit 156 identifies and displays the designated facility and designated entrance on the road map of the display via the display control unit 90 so that the searched designated facility and designated entrance can be seen at a glance ( Step S105). FIG. 8A shows an example in which the designated facility and the designated entrance are identified and displayed on the road map. In the figure, Ex is a designated exit, En is a designated entrance, W is a non-designated entrance, LA is a designated facility, and B is a non-designated facility. When the own vehicle M leaves the designated exit Ex of the Metropolitan Expressway HW, the landmark (or symbol mark) of the designated facility LA related to the designated exit Ex is identified and displayed (indicated by hatching in the figure). That is, the designated facility LA is displayed in a mode different from the normal display mode, and the landmark of the facility B that is not specified is displayed in the normal display mode. Further, the landmark (or symbol mark) of the designated entrance En is identified and displayed (indicated by hatching in the figure). That is, the designated facility LA is displayed in a mode different from the normal display mode, and the landmarks of the non-designated entrance W that are not related to the designated exit Ex are displayed in the normal mode. The identification display control unit 156 determines the display color of the designated facility LA and the designated entrance En in consideration of the display color and background color of the facility B and the non-designated entrance W. In the example of the identification display, as described above, the display color of the landmark can be changed, the landmark can be displayed larger than the others, or the landmark can be blinked. Further, the identification display control unit 156 can display “smart PA target facility” as an additional note of the designated facility LA, or can display “smart PA target entrance” as an additional note of the designated entrance En. . With these additional notes, the user can know that the smart PA can be used.

  Next, the designated facility arrival determination unit 158 monitors whether or not the vehicle has arrived at the designated facility (step S106), and if it is determined that the vehicle has arrived, the identification information control unit 156 displays the landmark of the designated facility. Are displayed in a normal display mode (step S107). FIG. 8B is a display example when it is determined that the vehicle position M has arrived at the designated facility. The identification display of the designated facility LA is ended, and the identification display of the designated entrance En which is the next destination is left.

  Next, the designated entrance arrival determination unit 160 monitors whether or not the vehicle has arrived at the designated entrance (step S108), and if it is determined that the vehicle has arrived, the identification information control unit 158 causes the land of the designated entrance En to land. The mark identification display is terminated and displayed in a normal manner (step S109).

  As described above, according to this embodiment, even when the vehicle is traveling without guidance for a destination or the like, when it is determined that the designated exit has been left, the smart PA automatically Since the designated designated facility and / or designated entrance are identified and displayed, the user can use the smart PA, which facility is the subject of the smart PA, and which entrance is the subject of the smart PA. It can be recognized at a glance.

  Next, a second embodiment of the present invention will be described with reference to the flowchart of FIG. Steps S201 to S204 are the same as in the first embodiment. When the designated facility and the designated entrance are searched (step S204), the route search program 104 (FIG. 3) next selects a route from the own vehicle position or the designated exit to the designated entrance via the designated facility. Search is performed (step S205). Next, the identification display control unit 156 displays the searched route on the road map information (step S206). Preferably, the identification display is performed so that the route to the designated facility and the route from the designated facility to the teacher's entrance can be distinguished. FIG. 10A is a display example of a route to a designated facility and a designated entrance. When the vehicle position M leaves the designated exit Ex, a route K1 to the designated facility LA is searched for and displayed on the road map. Further, the designated facility LA becomes a stopover or stopover, and a route K2 from there to the designated entrance En is searched, and this is synthesized and displayed on the road map. However, the route K1 and the route K2 may be displayed in different colors, but are not limited to this and may have the same display mode or display color. Further, in FIG. 10A, the landmarks of the designated facility LA and the designated entrance En are identified and displayed as in the first embodiment. However, when the routes K1 and K2 are displayed, the landmarks are not necessarily identified. It does not need to be displayed.

  Next, route guidance to the designated facility is started by the route search program 104 (step S207), and whether or not the designated facility arrival determination unit 158 has arrived at the designated facility is monitored (step S208). After arriving at the designated facility, next, a route to the designated entrance is guided (step S209). FIG. 10B is a display example when the vehicle arrives at the designated facility, and a route K2 to the designated entrance En is displayed. Next, it is monitored by the designated entrance arrival determination unit 160 whether or not the designated entrance has been reached (step S210), and guidance to the designated entrance is performed.

  As described above, according to the present embodiment, when it is determined that the own vehicle leaves the designated exit, the route to the designated facility and / or designated entrance that is the target of the smart PA is automatically searched and guided. Thus, the user can easily recognize at a glance that the smart PA can be used, and that the facility and entrance to the smart PA can be used at a glance. Furthermore, by displaying so that the route to the designated facility and the designated entrance is identified, it is possible to instantly understand the route to the designated facility and the route to the designated entrance.

  Next, a third embodiment of the present invention will be described with reference to the flowchart of FIG. Steps S301 to S304 are the same as those in the first and second embodiments. The designated facility search unit 152 further extracts category information associated with the designated facility from the storage unit 70 (step S305). The category information includes, for example, information indicating the type or genre of facilities such as restaurants, car supply stores, and parking lots.

  Next, the identification information control unit 156 determines whether or not there are a plurality of designated facilities searched (step S306), and when there are a plurality of designated facilities, the search route to each designated facility is color-coded. To display the identification (step S307). The route search to the designated facility is executed by the route search program 104 as described in the second embodiment. FIG. 12A is a display example of a route to each designated facility when a plurality of designated facilities are searched. In this example, three designated facilities LA1, LA2, and LA3 are searched, and routes K1 (displayed with a broken line), K2 (displayed with a solid line), and K3 (displayed with a dotted line) to the designated facilities LA1, LA2, and LA3 are different colors. Is displayed. More preferably, category additions 200, 202, and 204 are displayed in the designated facilities LA1, LA2, and LA3 so that the contents of the designated facilities can be understood.

  Next, the route search program 104 selects a desired route from the plurality of routes K1, K2, and K3 (step S308). This selection is preferably performed by the user, and a route touched by the user, such as a touch panel display, is selected. In addition to this, it is possible to select a route by operating a remote controller or a mouse. When a route is selected by the user, guidance for the selected route is executed (step S309).

  Thus, according to the present embodiment, when there are a plurality of designated facilities, each route is identified and displayed, so that the user can recognize the existence of a plurality of designated facilities at a glance, and You can know the route to the designated facility. Furthermore, since it is possible to know through the category information what kind of facility each designated facility is, it is possible to easily select the designated facility according to the purpose.

  In the above embodiment, the category information and the searched route are displayed together, but as shown in FIG. 12B, the category information of a single or a plurality of designated facilities is searched without searching for the route to the designated facility. May be displayed. In this case, the designated facility may be identified and displayed as in the first embodiment. In the above example, the facility content is additionally displayed as category information. However, if necessary, more detailed facility content may be displayed. In addition to displaying the supplementary note, the category of the designated facility may be recognized by changing the display color of the landmark of the designated facility according to the category to which the designated facility belongs. Furthermore, when the user selects a desired designated facility, the contents of the designated facility may be notified by voice guidance or the like. Further, the display color of the route to the designated facility may be changed for each category. Further, as in the first embodiment, landmarks of designated facilities and designated entrances may be displayed by identification.

  Next, a fourth embodiment of the present invention will be described. In the third embodiment, when a plurality of designated facilities are searched, the route to each designated facility is identified and displayed. In the fourth embodiment, a route to each designated facility is specified. Present by priority according to conditions.

  In the first aspect, when a plurality of designated facilities are searched, the route search program 104 presents a result of searching the route to each designated facility with a distance priority. As shown in FIG. 13A, a search result screen searched for in order from the closest vehicle position or the distance from the designated exit to the designated facility is displayed on the road map. At this time, the display color of the route to the designated facility on the road map is changed according to the distance so that it can be recognized at a glance which route is which distance. The route is selected through a user selection button. In the second mode, the route search program 104 presents the result of searching the route to each designated facility with time priority. FIG. 13B is an example of a result screen searched in the order of shorter required times to a plurality of designated facilities (in order of the estimated arrival time). At this time, the display color of the route to the designated facility on the road map is changed according to the required time. Although the required time is not shown in FIG. 13A, the required time can also be displayed here. Similarly, the distance may be displayed in FIG. 13B. Whether to select distance priority or time priority can be determined, for example, by the initial setting of the navigation device.

  As described above, according to the fourth embodiment, the user can easily select a desired designated facility by simultaneously presenting distances or required times to a plurality of designated facilities.

  Next, a fifth embodiment of the present invention will be described with reference to the free chart of FIG. In order to use the smart PA, the designated exit is exited and the designated facility is entered after the designated facility is used, but the designated exit and the designated entrance are not necessarily adjacent to each other. For example, when there is a non-designated entrance between the designated entrance and the designated exit, there is a possibility of re-entering from the non-designated entrance. For example, as shown in FIG. 15A, there is a case where an undesignated entrance W exists between the designated exit Ex and the designated entrance En. In this embodiment, it is possible to prevent re-entry from such an undesignated entrance.

  In FIG. 14, steps S501 to S504 are the same as in the above embodiment. When the designated facility and the designated entrance are searched (step S504), the identification information control unit 156 extracts a section from the designated exit where the vehicle has left to the designated entrance to be re-entered (step S505). The section is extracted by, for example, acquiring the coordinates on the link from the node indicating the designated exit to the node indicating the designated entrance. Next, the identification information control unit 156 displays the extracted section on the metropolitan expressway so as to be identified (step S506). FIG. 15A shows an example of the identification display of the extracted section on the Metropolitan Expressway. As shown in the figure, a section 210 from the designated exit Ex to the designated entrance En is extracted, and the section 210 is displayed in a color different from other portions. For example, the section 210 on the Metropolitan Expressway HW is displayed in red, and the user recognizes that it is an error to re-enter the Metropolitan Expressway from an undesignated entrance W existing in the section.

  Next, while the host vehicle is traveling, the designated entrance arrival determination unit 160 monitors whether or not the host vehicle has arrived at the designated entrance (step S507), and if it is determined that the vehicle has arrived, the identification information control unit 156 Terminates the identification display of the section 210 (step S508). As described above, according to the present embodiment, the user can recognize at a glance from which entrance the smart PA can be used effectively, and re-enter from the wrong designated entrance. Can be prevented.

  FIG. 15B shows another display example. In addition to the identification display of the section 210, in order to make it easy to recognize that the re-entry from the designated entrance En is correct, the certain section ahead of the designated entrance En on the Metropolitan Expressway HW is identified and displayed in blue, for example. You may do it.

  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 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 fifth embodiments are illustrated, it is needless to say that the first to fifth embodiments can be appropriately combined. For example, in the fifth embodiment, the designated facility can be identified and displayed, and the route to the designated facility and the designated entrance can be identified and displayed.

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 Ex: designation Exit LA: Designated facility En: Designated entrance B: Undesignated facility W: Undesignated entrance K1, K2, K3: Route searched

Claims (23)

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. Determining means for determining whether or not the own vehicle leaves the designated exit of the toll road;
A display control means for identifying and displaying a designated facility and a designated entrance related to the designated exit on the road map when it is determined to leave the designated exit;
A navigation device. The navigation according to claim 1, wherein the display control means identifies and displays the landmarks indicating the designated facility and the designated entrance so as to be distinguished from the landmarks indicating the non-designated facility and the non-designated entrance. apparatus. The navigation device further includes search means for searching for a route to the designated facility and the designated exit when it is determined to leave the designated exit, and the display control means is configured to search for the route searched for by the search means. The navigation device according to claim 1 or 2, wherein the navigation device is identified and displayed on a road map. The navigation device according to any one of claims 1 to 3, wherein the display control means displays category information to which a designated facility related to the designated exit belongs. The navigation apparatus further includes search means for searching each route to the specified facilities in a time-first manner when there are a plurality of specified facilities related to the specified exit, and the display control means is searched by the search means. The navigation device according to claim 1, wherein the route is identified and displayed on the road map according to time priority. The navigation device further includes a search unit that searches each route to the plurality of designated facilities with distance priority when there are a plurality of designated facilities related to the designated exit, and the display control unit is searched by the search unit. The navigation device according to claim 1, wherein the route is identified and displayed on the road map according to distance priority. The navigation device further includes user input means for selecting one of a plurality of routes when the plurality of routes are displayed on the road map by the display control means. The navigation device according to any one of the above. The display control means identifies and displays a section of a toll road from a designated exit where the vehicle has left to a designated entrance to be re-entered so as to be distinguished from others. The navigation device described. The navigation device according to claim 8, wherein the display control means identifies and displays a certain section of the toll road ahead of the designated entrance to be re-entered so as to be distinguished from others. 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. A road map display method of a navigation device when using a toll road that provides
Determining whether the vehicle has left the designated exit of the toll road,
A step of identifying and displaying a designated facility and a designated entrance related to the designated exit on a road map when it is determined that the designated exit has been left;
A road map display method comprising: The road according to claim 10, wherein the displaying step identifies and displays a landmark indicating the designated facility and the designated entrance so as to be distinguished from a landmark indicating an undesignated facility and an undesignated entrance. Map display method. The road map display method further includes a step of searching for a route to the designated facility and the designated exit when it is determined to leave the designated exit.
The road map display method according to claim 10 or 11, wherein the displaying step identifies and displays the searched route on the road map. The road map display method according to any one of claims 10 to 12, wherein the displaying step displays category information to which a designated facility related to the designated exit belongs. The road map display method further includes, when there are a plurality of designated facilities related to the designated exit, a step of searching each route to the designated facilities with time priority, and the displaying step includes the searched route. The road map display method according to any one of claims 10 to 13, wherein the map is identified and displayed on the road map according to time priority. The road map display method further includes a step of searching each route to the plurality of designated facilities with distance priority when there are a plurality of designated facilities related to the designated exit, and the displaying step includes the searched route. The road map display method according to claim 10, wherein the map is identified and displayed on the road map according to distance priority. 16. The display step according to claim 10, wherein the step of displaying identifies and displays a section of a toll road from a designated exit where the vehicle has left to a designated entrance to be re-entered so as to be distinguished from others. The road map display method described. 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. A road map display program executed by a navigation device when using a toll road that provides
Determining whether the vehicle has left the designated exit of the toll road,
A step of identifying and displaying a designated facility and a designated entrance related to the designated exit on a road map when it is determined that the designated exit has been left;
A road map display program. 18. The road according to claim 17, wherein the displaying step identifies and displays landmarks indicating the designated facility and the designated entrance so as to distinguish the non-designated facility and the non-designated entrance from the designated landmark. Map display program. The road map display program further includes a step of searching for a route to the designated facility and the designated exit when it is determined to leave the designated exit.
The road map display program according to claim 17 or 18, wherein the displaying step identifies and displays the searched route on the road map. The road map display program according to any one of claims 17 to 19, wherein the displaying step displays category information to which a designated facility related to the designated exit belongs. The road map display program further includes, when there are a plurality of designated facilities related to the designated exit, a step of searching each route to the plurality of designated facilities in a time-first manner, and the displaying step includes the searched route. The road map display program according to any one of claims 17 to 20, wherein the program is identified and displayed on the road map according to time priority. The road map display program further includes a step of searching each route to the plurality of designated facilities with distance priority when there are a plurality of designated facilities related to the designated exit, and the displaying step includes the searched route. The road map display program according to any one of claims 17 to 21, wherein the road map is identified and displayed on the road map according to distance priority. 23. The display according to any one of claims 17 to 22, wherein the displaying step identifies and displays a section of the toll road from the designated exit where the vehicle has left to the designated entrance to be re-entered so as to be distinguished from others. The listed road map display program.

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