JP5473639B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device having a function of guiding a route to a destination, and more particularly to guidance and warning when using a resting facility on a toll road such as a capital 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. Patent Document 2 discloses a navigation device that searches for interchange candidates located within a predetermined angle from the starting point and the destination point, and Patent Document 3 stores an interchange usage history corresponding to the destination. In addition, when searching for a destination, there is disclosed a navigation device for searching for a route including a past interchange use history, if any.

JP 2008-241390 A Japanese Patent Laid-Open No. 10-73444 JP 2006-194651 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 considered to be used, and when it is determined that the vehicle exits from the designated exit, the first judging means for judging whether or not the vehicle exits from the designated exit of the toll road, A second determining means for determining whether or not the designated facility has been used; and if it is determined that the designated facility has been used, whether or not the own vehicle is approaching the wrong entrance of the toll road First And determining means, when it is determined close to the wrong inlet, and a warning means for giving a warning.

  Preferably, the third determining means determines that the wrong entrance is approached when the distance to the undesignated entrance reaches a threshold value or less. The third determination means is configured such that when a designated entrance and a non-designated entrance are detected within a certain radius centered on the vehicle position, the distance from the vehicle position to the non-designated entrance is When the distance is smaller than the distance from the designated entrance, it can be determined that the wrong entrance is approaching. The third determination means can determine that the wrong entrance is approached when the distance to the designated entrance reaches a threshold value or more. The third determining means can determine that an erroneous entrance is approaching when an undesignated entrance is included within a certain angle in the traveling direction of the host vehicle. The third determining means can determine that the vehicle is approaching the wrong entrance when the designated entrance is not included within a certain angle in the traveling direction of the host vehicle. The third determining means can determine that an incorrect entrance is approached when approaching a designated entrance for down or up that does not coincide with the designated exit for up or down. The third determination means compares the first distance from the designated exit to the designated facility with the second distance from the designated facility to the vehicle position, and the second distance is greater than the first distance. Can be determined to be approaching the wrong entrance. Preferably, the warning means highlights the designated entrance on the road map.

The warning method of the navigation device according to 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. 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, and the designated exit When it is determined that the designated facility associated with the designated exit has been used, and when it is determined that the designated facility has been utilized, the wrong entrance to the toll road is approached. And a step of giving a warning when it is determined that the wrong entrance is approaching.
The warning program executed by the navigation device according to the present invention includes a step of determining whether or not the own vehicle has exited from the designated exit of the toll road, and when it is determined that the vehicle has exited from the designated exit, the designation Determining whether or not a designated facility associated with an exit has been used; and determining whether or not the designated facility is used when determining that the designated facility has been used; and Providing a warning when it is determined that the wrong entrance is approaching.

  According to the present invention, when it is determined that the wrong entrance of the toll road is approaching, a warning is given, so that re-entry to the toll road from the wrong entrance is prevented, and from the correct designated entrance. Encourage re-entry.

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 the Example of this invention. It is an example of a warning display of a present Example. It is a figure explaining the example of the erroneous entrance determination part in a present Example. It is a figure explaining the example of the erroneous entrance determination part in a present Example. It is a figure explaining the example of the erroneous entrance determination part in a present Example. It is a figure explaining the example of the erroneous entrance determination part in a present Example.

  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 includes information identifying whether it is an exit only, an entrance only, both an exit and an entrance, or whether the entrance of those interchanges is up or down. 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 route point, and other positions to a destination or a guidance route. A route search program 104 that searches for and guides an optimal route, a smart PA guide program 106 that gives various information and warnings 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 A designated entrance search unit 154 that searches for an entrance, a designated facility use judgment unit 156 that judges whether or not a designated facility has been used, and an erroneous entrance judgment unit that judges whether or not the vehicle is approaching the wrong entrance 158, a designated entrance arrival determination unit 160 that determines whether or not it has arrived at the designated entrance, and a warning unit 162 that gives a warning when it is determined that the wrong entrance is approaching. There.

  The own vehicle position detection program 102 detects the own vehicle position based on the outputs of the GPS receiver 30 and the self-contained navigation sensor, and the detected own vehicle position is map-matched with the 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 own vehicle position matches the exit of the metropolitan expressway, that is, the own vehicle leaves the designated exit. It is determined whether or not. Whether it corresponds to the designated exit is determined by referring to the flag of the interchange information in FIG. 4B, for example. Furthermore, when the designated exit determination unit 150 determines that the exit is from the designated exit, the designated exit determination unit 150 stores the time information of the exit. If a roadside ETC device is installed at a designated exit of the Metropolitan Expressway, it is determined that the vehicle has left the designated exit by checking data communication between the roadside ETC device and the in-vehicle ETC device. It may be.

  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 designated facility use determination unit 156 determines whether or not the designated facility associated with the designated exit has been used. Whether or not the designated facility is actually used can be determined by detecting that the vehicle has arrived at the designated facility. For example, a roadside ETC device is installed at the entrance or exit of a designated facility, and when the host vehicle passes through the roadside ETC device, information indicating that the designated facility is used is recorded in the in-vehicle ETC device. This information is collated when the vehicle re-enters the Metropolitan Expressway from the designated entrance. As another determination method, when the vehicle position is map-matched to the designated facility, it may be determined that the designated facility is used.

  The erroneous entrance determination unit 158 determines whether or not the vehicle using the designated facility is about to re-enter the metropolitan expressway from the wrong entrance. For example, when the vehicle is traveling in a direction approaching a non-designated entrance, or when the vehicle is traveling in a direction away from the designated entrance, the entrance to the capital expressway is mistaken for the entrance It is determined that the person is approaching the wrong entrance. This will be described in detail later.

  The designated entrance arrival determination unit 160 determines whether or not the vehicle has arrived at the designated entrance. Preferably, when data transmission / reception is performed between the roadside ETC device and the in-vehicle ETC device installed at the designated entrance, it is determined that the designated entrance has been reached. Alternatively, when the vehicle position is map-matched to the designated entrance, it can be determined that the vehicle has arrived at the designated entrance.

  When it is determined that the warning unit 162 is approaching the erroneous entrance, the warning unit 162 issues a warning to the user. The warning can provide voice guidance from the speaker 82 or give a visual display on the road map of the display 92.

  Next, the operation of the navigation device according to the 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.

  Next, when the vehicle position is map-matched to the exit of the metropolitan expressway, the designated exit determination unit 150 determines whether or not the exit corresponds to the designated exit (step S103). When it is determined that the host vehicle has left the designated exit, the designated facility search unit 152 searches for a designated facility related to the designated exit, and the designated entrance search unit 154 searches for a designated entrance related to the designated exit ( Step S104). This search is executed with reference to the table shown in FIG. The location information and the like regarding the designated facility and the designated entrance that have been searched are stored in the data memory 110.

  Next, the designated facility use determination unit 156 determines whether or not the designated facility has been used (step S105). As described above, when the in-vehicle ETC device receives information on facility use from the roadside ETC device installed in the designated facility, or when the vehicle position is map-matched to the designated facility, it is determined that the designated facility has been used. Is done. In Smart PA, the designated facility use determination unit 156 must enter the designated facility within 2 hours from the time of leaving the designated exit because it must re-enter the designated entrance within 2 hours after leaving the designated exit. If there is no arrival, it is determined that the designated facility is not used.

  Next, the erroneous entrance determination unit 158 monitors the vehicle position (map-matched road) detected by the vehicle position detection program 104, and determines whether or not the vehicle is approaching the wrong entrance of the Metropolitan Expressway. Is determined (step S106). If it is determined that the vehicle is approaching the wrong entrance, the warning unit 162 presents a warning notifying the user of the error on the voice guidance and / or the road map screen (step S107). The warning unit 162 can issue warnings intermittently or continuously until the host vehicle arrives at the designated entrance by the designated entrance arrival determination unit 160 (step S108).

  As described above, according to the present embodiment, when the vehicle is approaching the wrong entrance, it is possible to prevent re-entry from the wrong entrance by issuing a warning. The smart PA can be surely applied.

  FIG. 8A is an example of presenting a warning. In the figure, HW is a capital expressway, Ex is a designated exit, Eu is an upstream entrance, Ed is a downstream designated entrance, and LA is a designated facility. Here, it is assumed that the own vehicle leaves the designated exit Ex on the down, uses the designated facility LA, and re-enters from the designated entrance Ed on the down. When it is determined that the host vehicle M is approaching the entrance Eu of the uphill, the warning unit 162 displays a warning screen 210 “The correct entrance is EdIC (down)” on the road map screen 200. Warn that the user is about to enter the wrong entrance. At the same time, the warning unit 162 issues a warning by voice such as “EuIC is traveling in a different direction. Please ride from the EdIC in the downward direction” from the speaker 82. In some cases, the entrance of the Metropolitan Expressway is different in the position of going up and going down (inward and outward), and the user may be wondering from which entrance to re-enter. By issuing such a warning, it is possible to prevent re-entry from the wrong entrance.

  FIG. 8B is a presentation example of another warning. In addition to the warning as shown in FIG. 8A, the correct downward designated entrance Ed may be highlighted (indicated by hatching in the drawing) or identified on the road map screen 200 as shown in FIG. 8B. As a result, the user can understand the correct downstream designated entrance Ed and proceed to that direction. Further, the route K to the designated entrance Ed may be searched, the route K may be displayed and guided.

  Next, a specific determination method by the erroneous entrance determination unit 158 will be described. In FIG. 9A, Ex is a designated exit, En is a designated entrance, W is an undesignated entrance, and LA is a designated facility. As shown in the figure, when an undesignated entrance W is detected within a certain radial distance R from the vehicle position M, the erroneous entrance determination unit 158 determines that the vehicle is approaching the wrong entrance. To do. Preferably, the radial distance R corresponds to the scale of the road map screen displayed on the display, that is, when an undesignated entrance W is displayed on the road map screen, the vehicle is approaching the wrong entrance. Is determined.

  Further, as shown in FIG. 9B, when both the designated entrance En and the non-designated entrance W are detected within the radial distance R, the road distance De from the vehicle position to the designated entrance En and the non-designated entrance The road distance Dw to W is calculated, and when Dw> De, it is determined that the vehicle is approaching the wrong entrance. Apart from this, it is compared whether or not the distance Dw between the vehicle position M and the non-designated entrance W is larger than a threshold value (absolute value). It may be determined that the person is approaching the wrong entrance.

  FIG. 10 is a diagram illustrating a determination example of another erroneous entrance determination unit. Calculate the travel history (changes in latitude and longitude) of the vehicle for a certain period after using the designated facility LA, and obtain a travel vector Vb that approximates the calculation result (for example, the start and end points of the travel history) If a non-designated entrance W is included within a certain angle θw centered on any point on the travel vector Vb, it is assumed that the wrong entrance is approached. judge. This determination is made when the linear distance from the vehicle position to the non-designated entrance W is less than a certain value (that is, when the non-designated entrance W is detected within the radial distance R as in the first embodiment). ), And determination accuracy can be improved.

  Apart from this, by appropriately setting the angle θw, it is possible to determine that an erroneous entrance is approaching when the designated facility En does not exist within the angle θw. Also in this case, it is desirable that this is performed when the distance from the vehicle position to the designated entrance En is below a certain level.

  FIG. 11 is a diagram illustrating another determination example. As shown in the figure, the distance D1 from the own vehicle position to the designated entrance En at time t1 is obtained, and then the distance from the own vehicle position to the designated entrance En at time t2 (t2> t1). D2 is obtained, and when D2> D1, the vehicle is determined to be approaching the wrong entrance because it is away from the designated entrance. The distance of the road may be compared not only at the two positioning points at times t1 and t2, but also at a larger number of positioning points, thereby improving the reliability of the determination.

  FIG. 12 is a diagram illustrating another determination example. As shown in the figure, when the designated exit Ex and the designated entrance En are installed at the same interchange, the outbound route from the designated exit Ex to the designated facility LA and the return route from the designated facility LA to the designated entrance En are the same. Can be a route. Therefore, the erroneous entrance determination unit 158 calculates a road distance D1 from the designated exit Ex to the designated facility LA (or may be an actual travel distance), and uses the designated facility LA after using the designated facility LA. When the travel distance D2 to the position M becomes larger than D1 (D2> D1), it is determined that the wrong entrance W is approaching. Alternatively, a slight margin may be set, and when D2> D1 + α (α is a margin), it may be determined that the wrong entrance W is approaching.

  Further, in addition to the distance from the designated exit Ex to the designated facility LA, the time T1 required for traveling from the designated exit Ex to the designated facility LA is stored, and after using the designated facility LA, the traveling time T2 of the host vehicle is determined. When T1 is exceeded, it can be determined that the wrong entrance W is approaching. Also in this case, T2> T1 + α and the margin α may be set.

  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. Moreover, although the determination of the erroneous entrance in the said Example was illustrated individually, of course, it is also possible to combine those examples suitably.

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 W: Undesignated entrance Eu: Up entrance Entrance Ed: Down entrance

Claims (15)

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,
Second determination means for determining whether or not the designated facility has been used when it is determined that the designated exit has been exited;
Third determination means for determining whether the own vehicle is approaching the wrong entrance of the toll road when it is determined that the designated facility is used;
A warning means for giving a warning when it is determined that the wrong entrance is approached;
The third determination means is configured such that when a designated entrance and a non-designated entrance are detected within a certain radius centered on the vehicle position, the distance from the vehicle position to the non-designated entrance is A navigation device that determines that an incorrect entrance is approached when the distance is smaller than a distance from the designated entrance. 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,
Second determination means for determining whether or not the designated facility has been used when it is determined that the designated exit has been exited;
Third determination means for determining whether the own vehicle is approaching the wrong entrance of the toll road when it is determined that the designated facility is used;
A warning means for giving a warning when it is determined that the wrong entrance is approached;
The navigation apparatus according to claim 3, wherein the third determination unit determines that the wrong entrance is approached when a distance to the designated entrance reaches a threshold value or more. 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,
Second determination means for determining whether or not the designated facility has been used when it is determined that the designated exit has been exited;
Third determination means for determining whether the own vehicle is approaching the wrong entrance of the toll road when it is determined that the designated facility is used;
A warning means for giving a warning when it is determined that the wrong entrance is approached;
The third determination means is a navigation device that determines that an erroneous entrance is approaching when an undesignated entrance is included within a certain angle in the traveling direction of the host vehicle. 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,
Second determination means for determining whether or not the designated facility has been used when it is determined that the designated exit has been exited;
Third determination means for determining whether the own vehicle is approaching the wrong entrance of the toll road when it is determined that the designated facility is used;
A warning means for giving a warning when it is determined that the wrong entrance is approached;
The navigation device according to claim 3, wherein the third determination unit determines that an erroneous entrance is approaching when the designated entrance is not included within a certain angle in the traveling direction of the host vehicle. 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,
Second determination means for determining whether or not the designated facility has been used when it is determined that the designated exit has been exited;
Third determination means for determining whether the own vehicle is approaching the wrong entrance of the toll road when it is determined that the designated facility is used;
A warning means for giving a warning when it is determined that the wrong entrance is approached;
The navigation apparatus according to claim 3, wherein the third determining means determines that an erroneous entrance is approached when approaching a designated entrance for down or up that does not coincide with a designated exit for up or down. 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,
Second determination means for determining whether or not the designated facility has been used when it is determined that the designated exit has been exited;
Third determination means for determining whether the own vehicle is approaching the wrong entrance of the toll road when it is determined that the designated facility is used;
A warning means for giving a warning when it is determined that the wrong entrance is approached;
The third determination means compares the first distance from the designated exit to the designated facility with the second distance from the designated facility to the vehicle position, and the second distance is greater than the first distance. A navigation device that determines that it is approaching the wrong entrance when The navigation device according to any one of claims 1 to 6 , wherein the warning means highlights the designated entrance on the road map. 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 warning method for a navigation device when using a toll road that provides
  Determining whether the vehicle has left the designated exit of the toll road;
  Determining that the designated facility associated with the designated exit has been used when it is determined that the designated exit has been exited; and
  When it is determined that the designated facility has been used, a step of determining whether or not the wrong entrance of the toll road is approached;
  Providing a warning when it is determined that the wrong entrance is approaching,
  The step of determining whether or not the wrong entrance of the toll road is approaching is performed when the designated entrance and the non-designated entrance are detected within a certain radius centered on the own vehicle position. The warning method of determining with approaching the wrong entrance when the distance to the non-designated entrance is smaller than the distance from the vehicle position to the designated entrance. 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 warning method for a navigation device when using a toll road that provides
  Determining whether the vehicle has left the designated exit of the toll road;
  Determining that the designated facility associated with the designated exit has been used when it is determined that the designated exit has been exited; and
  When it is determined that the designated facility has been used, a step of determining whether or not the wrong entrance of the toll road is approached;
  Providing a warning when it is determined that the wrong entrance is approaching,
  In the step of determining whether or not the wrong entrance of the toll road is approaching, when an undesignated entrance is included within a certain angle of the traveling direction of the own vehicle, Warning method to judge. 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 warning method for a navigation device when using a toll road that provides
  Determining whether the vehicle has left the designated exit of the toll road;
  Determining that the designated facility associated with the designated exit has been used when it is determined that the designated exit has been exited; and
  When it is determined that the designated facility has been used, a step of determining whether or not the wrong entrance of the toll road is approached;
  Providing a warning when it is determined that the wrong entrance is approaching,
  The step of determining whether or not the wrong entrance of the toll road is approaching is that when approaching the designated entrance of the down or up that does not match the designated exit of the up or down, the approach to the wrong entrance Warning method to judge. 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 warning method for a navigation device when using a toll road that provides
  Determining whether the vehicle has left the designated exit of the toll road;
  Determining that the designated facility associated with the designated exit has been used when it is determined that the designated exit has been exited; and
  When it is determined that the designated facility has been used, a step of determining whether or not the wrong entrance of the toll road is approached;
  Providing a warning when it is determined that the wrong entrance is approaching,
  The step of determining whether or not the wrong entrance of the toll road is approaching includes: a first distance from the designated exit to the designated facility; and a second distance from the designated facility to the vehicle position. A warning method that compares and determines that the wrong entrance is approached when the second distance is greater than the first distance. 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 warning 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;
  Determining that the designated facility associated with the designated exit has been used when it is determined that the designated exit has been exited; and
  When it is determined that the designated facility has been used, a step of determining whether or not the wrong entrance of the toll road is approached;
  Providing a warning when it is determined that the wrong entrance is approaching,
  The step of determining whether or not the wrong entrance of the toll road is approaching is performed when the designated entrance and the non-designated entrance are detected within a certain radius centered on the own vehicle position. A warning program for determining that an erroneous entrance is approaching when the distance to the non-designated entrance is smaller than the distance from the vehicle position to the designated entrance. 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 warning 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;
  Determining that the designated facility associated with the designated exit has been used when it is determined that the designated exit has been exited; and
  When it is determined that the designated facility has been used, a step of determining whether or not the wrong entrance of the toll road is approached;
  Providing a warning when it is determined that the wrong entrance is approaching,
  In the step of determining whether or not the wrong entrance of the toll road is approaching, when an undesignated entrance is included within a certain angle of the traveling direction of the own vehicle, Warning program to judge. 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 warning 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;
  Determining that the designated facility associated with the designated exit has been used when it is determined that the designated exit has been exited; and
  When it is determined that the designated facility has been used, a step of determining whether or not the wrong entrance of the toll road is approached;
  Providing a warning when it is determined that the wrong entrance is approaching,
  The step of determining whether or not the wrong entrance of the toll road is approaching is that when approaching the designated entrance of the down or up that does not match the designated exit of the up or down, the approach to the wrong entrance Warning program to judge. 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 warning 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;
  Determining that the designated facility associated with the designated exit has been used when it is determined that the designated exit has been exited; and
  When it is determined that the designated facility has been used, a step of determining whether or not the wrong entrance of the toll road is approached;
  Providing a warning when it is determined that the wrong entrance is approaching,
  The step of determining whether or not the wrong entrance of the toll road is approaching includes: a first distance from the designated exit to the designated facility; and a second distance from the designated facility to the vehicle position. A warning program that compares and determines that the wrong entrance is approached when the second distance is greater than the first distance.

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