JP5599620B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device, and more particularly to a navigation device suitable for returning a rental vehicle to a return place.

  Conventionally, navigation devices search for an optimum route to a destination, set the searched optimum route as a guidance route, and then guide the vehicle to the destination according to the set guidance route. It was.

  Conventionally, some of such navigation devices are mounted on rental vehicles such as a rental car as shown in Patent Literature 1 and Patent Literature 2, for example.

  In this type of navigation device, it is possible to search for a route to the return location of the rented vehicle and guide the route of the rented vehicle to the return location using the searched route as a guide route.

  In recent years, car sharing has been adopted as a new vehicle rental service. Car sharing is a service that allows members who have registered in advance to use a specific car together. In general, car sharing is supposed to be used in a shorter time than a rental car, and has an advantage that the usage fee in a shorter time is lower than that of a rental car. Such car sharing is expected to increase in demand from the viewpoint of cost and environment. And it is convenient if the route guidance to a return place can be performed also in the rental vehicle utilized for such a car sharing by carrying a navigation apparatus.

JP 2005-308460 A JP 2002-140403 A

  By the way, as it is common to both car rental and car sharing, when a rental vehicle is used beyond the set rental time, an excess fee is charged in addition to the rental fee within the normal rental time. Will be. In order to avoid such a situation as much as possible, it is effective to provide guidance for assisting the return of the rental vehicle to the return place within the rental time on the navigation device side.

  In this regard, in the technique described in Patent Document 1, when the estimated arrival time at the return location is a predetermined time before the return time, a return guidance notification is given, and the estimated arrival time at the return location is the return time. If it exceeds, the user is warned to promptly go to the return place.

  However, since the technique described in Patent Document 1 assumes only the return of the rental vehicle to the initially set return location, that is, the rental location, the road distance from the current location of the rental vehicle to the return location and the traffic congestion situation Depending on the situation, there is a problem that there is a high possibility that an excess fee will be charged without being in time for the return time. In addition, there is a problem in terms of safety because it is not possible to drive with a room for return.

  In Patent Document 2 (see, for example, FIG. 6 and FIG. 7), a rental car parking lot existing around the current position of the rental car is displayed on a map, and the rental car to a return place other than the rental place is displayed. Although a return is assumed, there is no disclosure of specific means for supporting the return within the lending time to such a return place.

  Therefore, the present invention has been made in view of such points, and an object of the present invention is to provide a navigation device that can increase the possibility of returning a rental vehicle to a return place within a rental time. .

In order to achieve the above-described object, a navigation device according to the present invention is a navigation device mounted on a rental vehicle having a predetermined rental time, and the first return place where the rental vehicle is to be returned is a destination. Destination setting means for setting, route search means for searching for the optimum route to the first return place set as the destination by the destination setting means, and the first searched for by the route search means A route guidance means for performing route guidance using the optimum route to the return location as a guidance route, and a return / arrival time for setting a return time for returning the rented vehicle or an arrival time for arriving at the first return location A setting means, a current time acquisition means for acquiring the current time, and the current time acquired by the current time acquisition means and the guide route to the first return place. Accordingly, a first expected arrival time calculating means for calculating an estimated arrival time at the first return place, and a first storage means for storing information on a plurality of return places where the rental vehicle can be returned. Vehicle position detection means for detecting the current position of the rented vehicle, second storage means for storing at least information relating to public transportation facilities as information relating to public transportation, and calculation of the first expected arrival time Stored in the first storage means when the estimated arrival time at the first return place calculated by the means is a time later than the time set by the return / arrival time setting means. and information on the return location, to the landing before SL and the current position of the rental vehicle detected by the vehicle position detecting means, the second public transport stored in the storage means Based on the distribution, and returning the location search means for searching the nearest second return location landing public transport that exists in a predetermined region in the vicinity of the current position of the rental vehicle, said by the returning location retrieval unit When the second return location is detected, the information about the detected second return location is presented to the user as a state in which an operation for setting the second return location as a new destination is possible. Return location information presenting means, and the destination setting means sets the second return location where the information is presented by the return location information presenting means as a new destination waiting for the operation. The route searching means searches for an optimum route to the second return place set as a new destination by the destination setting means, and the route guiding means is searched by the route searching means. The route guidance is performed using the optimum route to the second return place as a new guidance route.

  And according to such a structure, when the arrival of the rental vehicle by the set return time or arrival time to the 1st return place initially set as the destination is not likely to be in time, the return place The information presenting means can perform an operation for setting the second return place as a new destination for information related to the second return place existing in the vicinity of the current location of the rental vehicle detected by the return place search means. And presenting it to the user as a safe state, it is possible to guide the route to the second return location set as a new destination with the operation, so return the rental vehicle to the return location within the rental time Can increase the likelihood of doing so.

In addition, after returning the rental vehicle to the second return place, it is possible to facilitate the use of public transportation as a means of transportation in place of the rental vehicle, so that convenience can be further improved.

  Furthermore, the second storage means stores information related to the fare for each use section of public transport, and the third storage means stores information related to the rental vehicle usage fee, and the second storage means. The first return location from the public transportation facility nearest to the second return location existing in the predetermined area based on the information on the fare for each use section and the usage section stored in the storage means Based on information related to the rented vehicle usage fee stored in the third storage means, and a fare calculating means for calculating the fare of the public transportation until the nearest public transportation exit. Excess charge calculation means for calculating an excess charge when the rental vehicle is used up to the first return place after exceeding the lending time, and the excess calculated by the excess charge calculation means Excess charge display means for displaying money on a display unit, wherein the return location information presenting means uses the fare calculated by the fare calculation means as the second return location information as the second return location. An operation for setting the return location as a new destination and a process of displaying on the display unit in a display mode that can be compared with the excess fee displayed by the excess fee display means may be performed.

  And according to such a structure, it is 1st to use a public transport from the public transport stand near the present position of a rental vehicle rather than the case of using a rental vehicle exceeding rental time. After confirming that it is possible to go to the return place at a low price, the user can set the second return place closest to the public transportation platform as a new destination. Convenience can be improved when it is desired to prioritize going to a return place at a lower price than the excess charge.

  Furthermore, the return place information presenting means, when a drop-off fee for the rental vehicle is imposed at the second return place, as the presentation of information on the second return place, You may perform the process displayed on the said display part with the said fare calculated by the fare calculation means.

  And according to such a structure, it is 1st to use a public transport from the public transport stand near the present position of a rental vehicle rather than the case of using a rental vehicle exceeding rental time. Since it is possible to more accurately determine that it is possible to go to the return place at a lower price, it is possible to further improve convenience when the user wants to prioritize going to the first return place at a lower price than the excess charge. Can do.

  In addition, based on at least the fare calculated by the fare calculation means and the excess charge calculated by the excess charge calculation means, the first return from the nearest public transportation platform to the second return place A person who uses public transportation until the nearest public transportation to the return place is charged more than the case where the rental vehicle exceeds the rental time of the rental vehicle and uses the rental vehicle to the first return place. Charge determination means for determining whether the price is cheap, and the return location information presentation means presents information on the second return location when a positive determination result is obtained by the fee determination means. You may go.

  And according to such a configuration, it is more preferable to use public transport from the nearest public transport platform to the second return place than to use the rental vehicle exceeding the rental time. Whether it is possible to go to the first return place at a lower charge by making it possible to go to the return place with a condition for presenting information about the second return place by the return place information presentation means Since it is possible to save time and effort for the user to make a self-judgement, it is possible to further improve the convenience when the user wants to give priority to going to the first return place at a price lower than the excess charge.

  Furthermore, when the renting fee for the rented vehicle is imposed at the second return place, the fare determining means may consider the losing fee in determining whether the fee is low.

  According to such a configuration, even when a drop-off fee is charged at the second return place, the public charge from the nearest public transportation station to the second return place is taken into account after taking this drop-off charge into consideration. Since it is possible to accurately determine whether or not the person using the transportation can go to the first return place at a low price, it is possible to improve the reliability of the operation of the return place information presenting means.

  Furthermore, the second storage means stores a timetable for each public transportation platform, and is stored in the current time acquired by the current time acquisition means and the second storage means. On the basis of the information on the platform and the timetable, the public transport nearest to the first return location from the nearest public transport location to the second return location within the predetermined area. Second estimated arrival time calculating means for calculating the estimated arrival time to the landing when using public transportation until the return place information presenting means is for presenting information on the second return place The estimated arrival time at the nearest public transportation to the first return place calculated by the second estimated arrival time calculation means is calculated as the second return place. It may perform a process of displaying on the display unit in the operation-displayable manner for setting the Tana destination.

  According to such a configuration, if the public transportation is used from the public transportation platform near the current position of the rented vehicle, the first return place by the time set by the return / arrival time setting means After confirming that you can arrive at the nearest public transport exit point, the second return location nearest to the public transport platform near the current location of such rental vehicles is the new destination. If the user wants to give priority to arriving at the first return place on time (for example, if the first return place is in the airport and reserved from the airport) Convenience) when you want to take a flight of

  In addition, the return location information presenting means may calculate the return / arrival time as the expected arrival time at the nearest public transportation to the first return location calculated by the second expected arrival time calculating means. When the time is earlier than the time set by the setting means, information regarding the second return place may be presented.

  And according to such a structure, if the public transportation is used from the nearest public transportation platform to the second return place, the first return place by the time set by the return / arrival time setting means. Is set by the return / arrival time setting means by making it possible to arrive at the nearest public transportation stop by the condition for presenting information on the second return place by the return place information presenting means. Since it is possible to save the user from having to make a self-judgment on whether or not he / she can arrive at the nearest public transportation stop at the first return place by the predetermined time, the user can return to the first return place by the scheduled time. Convenience in the case where priority is given to arrival.

Further comprising a traffic information obtaining means for obtaining transportation information, the first estimated arrival time calculation means, estimated arrival of the traffic information acquired by the traffic information acquiring section, to the first return location You may use for calculation of time.

  And according to such a structure, since the arrival time to a 1st return place can be calculated more correctly, the reliability with respect to operation | movement of a navigation apparatus can further be improved.

  Furthermore, the first return place may be a rental place of the rental vehicle, and the rental vehicle may be a vehicle or a rental car used for car sharing.

  And according to such a structure, in car sharing and a rental car, possibility of returning a rental vehicle to the rental place which is a return place within rental time can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, possibility that a rental vehicle will be returned to a return place within rental time can be improved.

The block diagram which shows 1st Embodiment of the navigation apparatus which concerns on this invention. The block diagram which shows 1st Embodiment of the navigation apparatus which concerns on this invention. In 1st Embodiment of the navigation apparatus which concerns on this invention, (a) is a schematic diagram which shows the 1st presentation screen of drop-off place information, (b) shows the 2nd presentation screen of drop-off place information, respectively. The flowchart which shows 1st Embodiment of the navigation apparatus which concerns on this invention. The flowchart which shows 2nd Embodiment of the navigation apparatus which concerns on this invention. The flowchart which shows 3rd Embodiment of the navigation apparatus which concerns on this invention.

(First embodiment)
Hereinafter, a navigation device according to a first embodiment of the present invention will be described with reference to FIGS.

  The navigation apparatus according to the present embodiment is mounted on a rental vehicle such as a shared car or a rental car used for car sharing and whose rental time is determined.

  As shown in FIG. 1, the navigation device 1 in this embodiment is roughly divided into a navigation main unit 2, a GPS receiver 3, an autonomous navigation sensor 4, a traffic information receiving device 5 connected to the navigation main unit 2, The operation unit 7, the display 8, and the speaker 10 are included.

  Here, the GPS receiver 3 receives GPS information (information on time and orbit) distributed from a GPS satellite (not shown), and outputs the received GPS information to the navigation main unit 2 side.

  The autonomous navigation sensor 4 detects the vehicle speed, acceleration (angular velocity), direction, and the like of the rented vehicle (own vehicle), and outputs the detection result to the navigation main unit 2 side. The autonomous navigation sensor 4 may be a vehicle speed sensor, a gyro sensor, or the like.

  Furthermore, the traffic information receiving device 5 receives traffic information transmitted from a traffic information transmission source (in other words, a provider), and outputs the received traffic information to the navigation main unit 2 side. . As the traffic information receiving device 5, for example, a beacon receiver and FM multiplex receiver compatible with the provision of traffic information by VICS (Vehicle Information and Communication System) (registered trademark) in Japan, satellite radio in the United States, etc. A satellite radio receiver compatible with real-time distribution of traffic information used, or a radio receiver compatible with RDS / TMC (Radio Data System / Traffic Message Channel) can be used.

  Furthermore, the operation unit 7 is used for various input operations on the navigation device 1. The operation unit 7 may be a remote control, a touch panel of the display 8, a linear encoder, a rotary encoder, a voice input microphone, or the like.

  Next, the navigation main unit 2 will be described in detail. As shown in FIG. 1, the navigation main unit 2 includes a navigation CPU 12, a hard disk drive (HDD) 14, a flash memory 15, a RAM 16, a user connected to the system bus 11. It has an interface (I / F) 17, an image interface (I / F) 18, and an audio interface (I / F) 19.

  Here, the navigation CPU 12 executes various functions of the navigation device 1 such as a vehicle position detection function, a map display function, a route search function, a route guidance function, and a search function.

  The hard disk drive 14 stores map data and an execution program for the navigation CPU 12. Map data includes road data indicating roads, background data indicating terrain other than roads such as rivers and green spaces, route calculation data for route search (road network data, etc.), and search for searching destinations, etc. Contains data. Of these, the road data includes links, link IDs, nodes, node IDs, traffic conditions, road names, and the like as data components. The background data includes points, polylines, polygons, and the like as data components. Furthermore, the route calculation data includes links, nodes, traffic conditions, and the like as data components. Furthermore, the search data includes an address, a postal code, POI (Point of Interest) information, and the like as data components. The POI information is information indicating POI attributes (eg, name, type, address, and link ID of a link associated with the POI) such as a facility.

  The flash memory 15 stores an execution program of the navigation CPU 12 that is read from the hard disk drive 14 by the navigation CPU 12 when the navigation device 1 is started. The stored execution program is stored by the navigation CPU 12. By being appropriately executed, various functions of the navigation device 1 are appropriately executed.

  Furthermore, the RAM 16 is used for temporarily storing various data such as processing results by the navigation CPU 12.

  In addition, the operation unit 7, the display 8, and the speaker 10 are connected to the user interface 17, the image interface 18, and the audio interface 19, respectively.

  Next, the navigation CPU 12 will be described in more detail. As shown in FIG. 2, the navigation CPU 12 has a vehicle position calculation unit 21 as vehicle position detection means as one of its functional blocks. The vehicle position calculation unit 21 receives GPS information output from the GPS receiver 3 and detection results output from the autonomous navigation sensor 4. And the own vehicle position calculation part 21 performs the satellite navigation which calculates the own vehicle position as a present location of a rental vehicle as an absolute coordinate based on the GPS information input from the GPS receiver 3 side. In addition, the vehicle position calculation unit 21 performs autonomous navigation based on the detection result input from the autonomous navigation sensor 4 side to calculate the vehicle position as a relative position that is a change from the previous positioning position. It has become. Furthermore, the own vehicle position calculation unit 21 uses the map data stored in the hard disk drive 14 to correct the own vehicle position calculated by satellite navigation or autonomous navigation to the corresponding position on the road in the map data. Map matching processing is performed. Then, when the map matching process is properly performed, the own vehicle position calculation unit 21 uses the own vehicle position after the map matching process as a final calculation result.

  As shown in FIG. 2, the navigation CPU 12 has a map drawing unit 22 as one of its functional blocks. The map drawing unit 22 uses the map data stored in the hard disk drive 14 to display, for example, a map in a predetermined area around the vehicle position calculated by the vehicle position calculation unit 21 on the display 8. It is supposed to be.

  Further, as shown in FIG. 2, the navigation CPU 12 has a destination setting unit 23 as destination setting means as one of its functional blocks. The destination setting unit 23 displays an operation screen for setting a navigation destination on the display 8 and then sets a destination according to an input operation using the operation unit 7 for the displayed operation screen. It is supposed to be. In particular, as one of the destination setting operations specific to the present embodiment, the destination setting unit 23 performs an input operation for setting the rental location of the rental vehicle as the first return location as the destination, This lending place is set as the destination. Here, the input operation for setting the rental location as the destination can be performed at any time point in the period from the start of rental of the rental vehicle to the return of the rental vehicle.

  When the input operation for setting the rental location as the destination is performed at the rental location (that is, immediately after the rental), the destination guidance determination by the route guidance unit 25 described later is not performed immediately after the route guidance starts. When setting the destination, it is only necessary to input a point where the user wants to stop by using the rental vehicle and set the input point as a waypoint on the navigation CPU 12 side.

  Or, after performing the route guidance for the destination where the user wants to stop, the user who has finished the business at the stopping point may set the rental location as the destination again at the stopping point. It is. In this case, the route guidance to the stop point may be a normal route guidance that is not accompanied by operations specific to the present embodiment, such as displaying a warning screen described later and presenting drop-off location information. At this time, whether the route guidance with the operation peculiar to the present embodiment or the normal route guidance is performed is determined by the navigation CPU 12 side based on whether or not the rental location is set as the destination. Good.

  Furthermore, as shown in FIG. 2, the navigation CPU 12 has a route search unit 24 as route search means as one of its functional blocks. This route search unit 24 is based on the map data (route calculation data) stored in the hard disk drive 14 and the destination set by the destination setting unit 23 from the vehicle position calculated by the vehicle position calculation unit 21. An optimum route according to a preset route calculation condition to the ground is searched. The route calculation condition may be set by default, or may be set by the user through an input operation using the operation unit 7. Specific route calculation conditions include, for example, a condition that calculates the route that takes the shortest time to the destination, a condition that calculates the route that takes the shortest distance to the destination, and general roads. Various conditions can be considered, such as a condition for calculating a route that travels on the road and a condition for calculating a route that preferentially travels on a wide road. The route calculation condition can further include a condition that the traffic information received by the traffic information receiving device 5 is taken into consideration. Here, for the route calculation, a known cost calculation based on a cost obtained by quantifying the difficulty of passing through a road or an intersection according to a route calculation condition, a link length, a road type, or the like is used. In this route calculation process, the optimal route is one that has a relatively low cost under the set route calculation conditions from among many possible routes from the vehicle position to the destination. It is calculated as a route candidate. In the route calculation, one candidate that minimizes the cost of the route among the plurality of calculated routes is calculated as the optimum route. At this time, if the route calculation condition includes a condition for considering traffic information, for example, by setting the cost corresponding to a link where traffic congestion or congestion occurs to a large value, the link (That is, it is difficult to select a route including the link as the optimum route), and an optimum route for avoiding traffic congestion and congestion is searched. The route search unit 24 presents the optimum route searched in this way to the user as a guide route candidate by display on the display 8. In particular, as one of the route search operations unique to the present embodiment, the route search unit 24 searches the optimum route to the rental location set as the destination by the destination setting unit 23 and presents it to the user. It has become.

  As shown in FIG. 2, the navigation CPU 12 includes a route guidance unit 25 as route guidance means as one of its functional blocks. When an input operation using the operation unit 7 for setting the optimum route presented by the route searching unit 24 as the guidance route is performed, the route guidance unit 25 sets the optimum route as the guidance route. ing. For example, the guide route may be set by saving information on the guide route (link, node, destination, etc.) in the RAM 16 or the like. The route guiding unit 25 starts route guidance according to the set guidance route after setting the guidance route. The route guidance is performed by displaying an enlarged view of the intersection on the display 8 or by outputting a voice for turning right and left at the intersection via the speaker 10. In particular, as one of the route guidance operations unique to the present embodiment, the route guidance unit 25 performs route guidance using the optimum route to the rental location searched by the route search unit 24 as the guidance route. .

  Furthermore, as shown in FIG. 2, the navigation CPU 12 has a traffic information acquisition unit 27 as traffic information acquisition means as one of its functional blocks. The traffic information acquisition unit 27 receives traffic information. The traffic information output from the device 5 is input. Then, the traffic information acquisition unit 27, based on the input traffic information, traffic information ahead of the vehicle position on the guidance route to the rental location set by the route guidance unit 25 (in other words, on the guidance route). (Traffic information of points or sections where the vehicle has not passed) can be acquired. As an example of a specific configuration for acquiring traffic information on the guidance route to such a rental location, first, the traffic information acquisition unit 27 uses the traffic information input from the traffic information receiving device 5 to The link ID associated with the traffic information included in is extracted. At this time, the traffic information acquisition unit 27 extracts the link ID of each link constituting the guide route from the information about the guide route to the rental location stored in the RAM 16 or the like. Next, the traffic information acquisition unit 27 compares the link ID extracted from the traffic information with the link ID extracted from the information related to the guide route to the rental location, and from the traffic information to the rental location. The traffic information corresponding to the link ID of the link constituting the guide route is narrowed down. From the narrowed traffic information, further, based on the calculation result of the vehicle position calculation unit 21, traffic information that is considered to correspond to a point or section where the vehicle position has not passed is guided to the rental location. Narrow down as traffic information ahead of the vehicle position on the route. However, the present invention is not limited to such a configuration. For example, the traffic information acquisition unit 27 sets the link ID of the link that forms the route ahead of the vehicle position in the guidance route to the rental location to the traffic information. In response to this, the transmission source of the traffic information returns the traffic information corresponding only to the link ID transmitted from the traffic information acquisition unit 27 to the navigation device 1. May be.

  Furthermore, as shown in FIG. 2, the navigation CPU 12 has a return / arrival time setting unit 29 as return / arrival time setting means as one of its functional blocks. The return / arrival time setting unit 29 displays on the display 8 an operation screen for selectively setting a return time at which the rental vehicle is to be returned or an arrival time at which the rental vehicle is to be rented. A return time or arrival time corresponding to an input operation using the operation unit 7 is selectively set. The return / arrival time setting unit 29 may display an operation screen for setting the return time or arrival time immediately after the rental place is set as the destination by the destination setting unit 23.

  As shown in FIG. 2, the navigation CPU 12 has a current time acquisition unit 30 as a current time acquisition unit as one of its functional blocks. The current time acquisition unit 30 acquires the current time based on GPS information input from the GPS receiver 5 or a radio time signal received by an in-vehicle radio receiver (not shown).

  Further, as shown in FIG. 2, the navigation CPU 12 includes a first expected arrival time calculation unit 31 as a first expected arrival time calculation unit as one of its functional blocks. The first expected arrival time calculation unit 31 includes the vehicle position calculated by the vehicle position calculation unit 21, the current time acquired by the current time acquisition unit 30, and the lending set by the route guidance unit 25. Based on the guidance route to the place and the traffic information ahead of the vehicle position on the guidance route acquired by the traffic information acquisition unit 27, the estimated arrival time from the vehicle position to the rental location is calculated. ing. More specifically, the first expected arrival time calculation unit 31 is, for example, a restriction set for each link constituting the route section from the current vehicle position to the rental location on the guidance route to the rental location. Calculate the time required for passage of each link based on the speed (traffic conditions), the link length of each link, and the cost of each link that is appropriately added based on traffic information, and add up the calculated required time May be calculated by adding the current time to the current time. The calculation of the estimated arrival time by the first estimated arrival time calculation unit 31 may be performed periodically every time a predetermined time has elapsed from the previous calculation of the estimated arrival time, or the guide route You may be made to perform when the upper traffic information shows a predetermined change (for example, the area of traffic congestion increased). In addition, the calculation of the first expected arrival time by the first expected arrival time calculation unit 31 may be performed when setting the guide route to the rental location.

  Furthermore, in this embodiment, the hard disk drive 14 shown in FIG. 1 has a function as a first storage means, and the hard disk drive 14 relates to a plurality of return places where the rental vehicle can be returned. Information (hereinafter referred to as return place information) is stored. This return place information may be information including each position (latitude and longitude), address, and name of a plurality of return places. The return location indicated by the return location information includes a rental location where the rental vehicle is rented. Of course, the return place information may be a part of map data (for example, POI information).

  Further, in the present embodiment, the hard disk drive 14 shown in FIG. 1 has a function as a second storage unit, and the hard disk drive 14 includes information on a plurality of public transportation facilities (hereinafter referred to as public transportation). (Referred to as engine information) is stored. The public transport information includes information (hereinafter referred to as landing information) about each of a plurality of public transport facilities. The platform information may be information including the type of public transportation corresponding to this, the location (latitude and longitude) of the platform, an address, and a name. Further, the public transportation information may be information that is classified by a large type such as a train or a bus, and further subdivided by route name. If the public transportation is a train, the stop is a station, and if it is a bus, it is a stop.

  Returning to FIG. 2, the navigation CPU 12 has a drop-off location search unit 32 as a return location search means as one of its functional blocks. In this drop-off location search unit 32, the latest expected arrival time at the rental location calculated by the first expected arrival time calculation unit 31 is later than the time set by the return / arrival time setting unit 29. In this case, a search is made for a lending vehicle drop-off location existing in a predetermined area near the vehicle position as the second return location. At this time, the drop-off location search unit 32 serves as a second return location in a predetermined area in the vicinity of the own vehicle position (for example, in a circular area having a radius centered on the own vehicle position and a predetermined distance). It is designed to search for the nearest drop-off location at the engine platform. When searching for such a drop-off location, for example, based on the vehicle location information, the platform information, and the return location information, the platform and the return location of public transportation existing in a predetermined area near the vehicle location. After the search, a return place that has the shortest distance to the detected public transportation platform among the detected return places may be detected as a drop-off place. In this case, the distance from the return place to the landing may be a straight line distance on simple map data, or may be the shortest route obtained using link information in the map data. The drop-off location search unit 32 monitors the latest expected arrival time to the rental location calculated by the first expected arrival time calculation unit 31 and sets the estimated arrival time and the return / arrival time setting unit 29. Although it is necessary to determine the magnitude relationship with the determined time, this determination may be performed in synchronization with the latest predicted arrival time being calculated by the first expected arrival time calculation unit 31.

  As shown in FIG. 2, the navigation CPU 12 has a drop-off location information presentation unit 34 as return location information presentation means as one of its functional blocks. When a drop-off location is detected by the drop-off location search unit 32, the drop-off location information presentation unit 34 uses the information about the detected drop-off location (hereinafter referred to as “drop-off location information”) as a new location. It is presented to the user as a state in which an operation using the operation unit 7 for setting the destination is possible. Specifically, the drop-off location information presentation unit 34 can perform an input operation using the operation unit 7 for setting the drop-off location detected by the drop-off location search unit 32 as a new destination, for example. By displaying a map and a name of the drop-off location as the drop-off location information on the screen, the drop-off location information may be presented (see FIG. 3B). In addition, presentation of the drop-off location information may be accompanied by audio output as necessary.

  Furthermore, as shown in FIG. 2, the navigation CPU 12 has a warning output unit 35 as one of its functional blocks. The warning output unit 35 is configured such that the latest estimated arrival time at the rental location calculated by the first estimated arrival time calculation unit 31 is later than the time set by the return / arrival time setting unit 29. In addition, a warning indicating that it is likely to be late to return the rental vehicle to the rental location up to the time set by the return / arrival time setting unit 29 is made by displaying a warning screen on the display 8. At this time, the warning output unit 35 may output a warning using voice output as necessary. The warning output unit 35 may output a warning simultaneously with the presentation of the drop-off location information after completion of the search for the drop-off location by the drop-off location search unit 32 (see FIG. 3A). .

  Furthermore, in the present embodiment, the public transport information includes information on the fare for each use section of each public transport (hereinafter referred to as fare information). When the public transport is a train, the use section is between stations. When the public transport is a bus, the use section is between stops.

  Further, in the present embodiment, the hard disk drive 14 shown in FIG. 1 has a function as a third storage means, and the hard disk drive 14 includes information relating to a rental vehicle usage fee (hereinafter referred to as a usage fee). Is referred to as information). The usage fee information may be information indicating a usage fee for each item such as a vehicle type, rental time, or travel distance. Further, in the present embodiment, the usage fee information includes information (hereinafter referred to as excess fee information) indicating an excess fee when the rental vehicle is used beyond the rental time. This excess charge may be a charge that is different for each item such as excess time (time zone) and vehicle type. Furthermore, when the navigation apparatus 1 according to the present embodiment is applied to a rental vehicle rental service in which a drop-off fee is imposed at a drop-off location, the use fee information may include drop-off fee information indicating the drop-off fee. . This drop-off charge information may be information indicating each drop-off charge that is uniquely defined based on a correspondence relationship (correspondence table) between a lending location and a drop-off location registered in advance.

  Furthermore, as shown in FIG. 2, the navigation CPU 12 has a fare calculation unit 36 as a fare calculation means as one of its functional blocks. This fare calculation unit 36, when the drop-off location is detected by the drop-off location search unit 32, from the nearest public transport stop to this drop-off location, to the nearest public transport drop-off point (station or stop) ) Public transportation fares up to) are calculated. The calculation of the fare is performed based on the rental location information set as the destination by the destination setting unit 23, the search result of the drop-off location search unit 32, the landing information, and the fare information. It should be noted that the same public transportation (for example, a train on the same route) is always required from the nearest public transportation stop to the drop-off place detected by the drop-off place search unit 32 to the nearest public transportation exit to the rental place. It is not always possible to reach only by using. Therefore, the fare calculated by the fare calculation unit 36 may be a total fare when a plurality of transportation facilities are connected. This total fare may be a fare for connecting trains on different routes, as well as a fare for connecting trains and buses. In addition, the fare calculation unit 36 may identify the public transportation stop where the straight line distance on the map data from the rental place is the shortest as the stop of the public transport nearest to the rental place. . Furthermore, such a function of the fare calculation unit 36 can be realized by using a known application that can search for a fare on a route based on public transportation information, for example.

  Furthermore, as shown in FIG. 2, the navigation CPU 12 has an excess charge calculation unit 38 as an excess charge calculation means as one of its functional blocks. In this excess charge calculation unit 38, the latest estimated arrival time at the rental location calculated by the first estimated arrival time calculation unit 31 is later than the time set by the return / arrival time setting unit 29. In such a case, an excess charge is calculated when the rental vehicle is used up to the rental location exceeding the rental time of the rental vehicle. The calculation of the excess charge is performed based on the excess charge information. More specifically, the excess fee calculation unit 38 subtracts the time set by the return / arrival time setting unit 29 from the latest expected arrival time to the rental location calculated by the first expected arrival time calculation unit 31. Thus, the excess time may be obtained, and the excess charge corresponding to the excess time may be extracted from the excess charge information. At this time, the excess charge calculation unit 38 may use the vehicle type information of the rented vehicle registered in advance to extract the excess charge from the excess charge information together with the excess time.

  As shown in FIG. 2, the navigation CPU 12 includes an excess charge display processing unit 39 as an excess charge display means as one of the functional blocks. The excess charge display processing unit 39 displays the excess charge calculated by the estimated arrival time calculation unit 48 on the display 8. The excess charge may be displayed on the same screen as the warning screen displayed by the warning output unit 35 (see FIG. 3A). In addition, the display of the excess charge is performed on an operation screen that allows an input operation using the operation unit 7 for selecting to use the rental vehicle to the rental place exceeding the rental time. It is also possible (see FIG. 3A).

  Further, in the present embodiment, the drop-off location information presenting unit 34 displays the fare calculated by the fare calculation unit 36 as one of the drop-off location information by the excess charge display processing unit 39 as presentation of the drop-off location information. A process of displaying on the display 8 in a display mode (for example, display on the same screen) that can be compared with the excess charge is performed. At this time, the drop-off location information presentation unit 34 inputs the fare calculated by the fare calculation unit 36 using the operation unit 7 for setting the drop-off location detected by the drop-off location search unit 32 as a new destination. The display is performed in a display mode that allows operation (screen operation). Specifically, the drop-off location information presentation unit 34 can perform an input operation using the operation unit 7 for setting the drop-off location detected by the drop-off location search unit 32 as a new destination, for example. The fare calculated by the fare calculator 36 may be displayed on the screen. However, the operation screen is not limited to the final screen for setting the drop-off location as a new destination, and may be an operation screen that allows an operation to move to the final screen. . The display of the fare calculated by the fare calculation unit 36 may be performed on the same screen as the warning screen displayed by the warning output unit 35 (see FIG. 3A).

  Note that the fare calculated by the fare calculation unit 36 is not information specific to the drop-off location, such as a map or name of the drop-off location, but is a public transport fare from the nearest public transport stop at the drop-off location. It can be said that it is information related to the place of drop-off. Therefore, in the present invention, the fare calculated by the fare calculation unit 36 is included in the drop-off location information.

  Furthermore, in this embodiment, the drop-off location information presentation unit 34 presents the drop-off location information as a presentation of the drop-off location information when a drop-off fee for the rental vehicle is imposed at the drop-off location detected by the drop-off location search unit 32. A process of displaying the drop-off fee as one piece of information on the display 8 at the same time as the fare calculated by the fare calculating unit 36 is performed. The drop-off charge may be acquired from the drop-off charge information in the usage charge information. When acquiring the drop-off fee, a drop-off fee corresponding to the name of the rental location and the name of the drop-off location may be extracted from the drop-off fee information.

  In the present embodiment, the public transport information includes a timetable for each public transport platform.

  Further, as shown in FIG. 2, the navigation CPU 12 includes a second expected arrival time calculation unit 41 as second expected arrival time calculation means as one of its functional blocks. This second expected arrival time calculation unit 41 uses public transportation from the nearest public transportation platform to the landing location detected by the unloading location search unit 32 to the nearest public transportation exit to the rental location. In this case, the estimated arrival time at the landing is calculated. The calculation of the estimated arrival time is performed based on the current time acquired by the current time acquisition unit 30, the landing information in the public transport information, and the timetable. As a more specific calculation method of the estimated arrival time by the second estimated arrival time calculation unit 41, for example, the following method can be used. That is, first, using the hopping location detected by the hopping location searching unit 32 as a temporary destination, an optimum route to the hopping location is searched using the route search function of the route searching unit 24. Next, by dividing the distance in the real world converted into the link length of each link constituting this optimum route by the speed limit (traffic conditions) set for each link, Calculate the time required until. Then, the estimated time of arrival at the drop-off location is calculated by adding the calculated required time from the vehicle position to the drop-off location to the current time. Next, find the distance from the drop-off location to the nearest public transportation platform based on the link information of the map data, etc., and divide this calculated distance by the preset walking speed, from the drop-off location Calculate the time required to get to the nearest public transportation platform. However, if the distance from the landing location to the nearest public transportation platform is less than a predetermined distance (for example, 200 m or less), the time required from the landing location to the nearest public transportation platform is assumed to be 0 minutes. May be. Then, the estimated time of arrival at the nearest public transportation platform is calculated by adding the calculated time required from the landing location to the nearest public transportation platform to the estimated arrival time at the aforementioned transportation location. . Next, the departure time closest to the estimated arrival time after the expected arrival time at the nearest public transportation platform is extracted from the timetable, and public transportation (several) may be selected from this departure time. The arrival time at the relevant landing is extracted from the timetable when using the public transportation closest to the rental location. In this way, it is possible to calculate the estimated arrival time at the public transportation nearest to the rental location.

  Furthermore, in the present embodiment, the drop-off location information presentation unit 34 displays the estimated arrival time calculated by the second expected arrival time calculation unit 41 as one of the drop-off location information as display of the drop-off location information. The process to display on is performed. At this time, the drop-off location information presentation unit 34 sets the estimated arrival time calculated by the second estimated arrival time calculation unit 41 as the new destination for the drop-off location detected by the drop-off location search unit 32. The display is performed in a display mode in which an input operation (screen operation) using the operation unit 7 is possible. Specifically, the drop-off location information presentation unit 34 can perform an input operation using the operation unit 7 for setting the drop-off location detected by the drop-off location search unit 32 as a new destination, for example. The estimated arrival time calculated by the second estimated arrival time calculation unit 41 may be displayed on the screen. However, the operation screen is not limited to the final screen for setting the drop-off location as a new destination, and may be an operation screen that allows an operation to move to the final screen. . Such display of the estimated arrival time may be performed on the same screen as the warning screen displayed by the warning output unit 35 (see FIG. 3A).

  Note that the estimated arrival time calculated by the second estimated arrival time calculation unit 41 is not information specific to the drop-off location, such as a map or name of the drop-off location, but from the nearest public transportation platform to the drop-off location. It can be said that it is information related to the place of drop-off in the form of the estimated arrival time when using public transportation. Therefore, in the present invention, the estimated arrival time calculated by the second estimated arrival time calculation unit 41 is included in the drop-off location information.

  When the drop-off location information is presented by the drop-off location information presentation unit 34 in this way and an input operation using the operation unit 7 for setting the drop-off location as a new destination is performed. The destination setting unit 23 sets the drop-off location as a new destination in place of the rental location. In addition, after setting such a drop-off location to a new destination, the route search unit 24 searches for an optimum route to the drop-off location, and uses the searched optimum route as a new guidance route. It is presented to the user as a candidate. Further, after waiting for a user operation to set the optimum route to the drop-off location presented in this way as a new guide route, the route guidance unit 25 sets the optimum route to the drop-off location as a new guide route. The route guidance according to the set guidance route to the set-off location is started.

  Here, FIG. 3 shows a display example of the screen by the navigation device 1 of the present embodiment. That is, FIG. 3A shows a warning screen 42 displayed by the warning output unit 35. On this warning screen 42, a warning message “Looking to be late for the return / arrival time!” Indicating that it is likely to be late for the time set by the return / arrival time setting unit 29, and the time “22:30” and It is displayed together with the latest estimated arrival time “23:12” to the lending location calculated by the first estimated arrival time calculation unit 31. In the warning screen 42, the excess charge display processing unit 39 selects that the excess charge “2000 yen” calculated by the excess charge calculation unit 38 exceeds the lending time and uses the rental vehicle to the rental location. Are displayed in a state (parallel state) that is associated with an operation button 43 (hereinafter, referred to as a lending time excess selection button) 43 that is capable of performing an input operation. In FIG. 3A, the character “extend” is shown on the loan time excess selection button 43, but other characters are shown if it is understood that the loan time is exceeded. May be.

  Further, on the warning screen 42, the fare “560 yen” calculated by the fare calculation unit 36, the fare “1050 yen” calculated by the fare calculation unit 36, and the second estimated arrival time calculation unit 41 are calculated on the warning screen 42. Expected arrival time “22:10” is an operation button 45 (hereinafter referred to as a drop-off selection button) 45 that allows an input operation to transition to a final screen for setting the drop-off location as a new destination. Are displayed in an associated state (parallel state). That is, the warning screen 42 can be said to be an operation screen on which an input operation for transitioning to the final screen is possible. In FIG. 3 (a), “Rental car guide nearest to nearby station” is shown on the drop-off selection button 45, but the nearest drop-off place is located at the public transportation station near the own vehicle position. Any other character may be used as long as it can be understood that the information shifts to guidance. In addition, a map 46 around the vehicle position is displayed on the warning screen 42 by the map drawing unit 22. If the drop-off place is not detected by the drop-off place search unit 32, the warning screen 42 does not display the fare and the drop-off fee calculated by the drop-off selection button 45 and the fare calculation unit 36, and the rental time is exceeded. Only the selection button 43 and the excess charge are displayed.

  By displaying the screen of FIG. 3 (a), the user can use the public transportation from the public transportation platform close to his / her vehicle position, and the rental time exceeds the rental time of the rental vehicle. After confirming that the charge is lower than when using a vehicle, it is possible to shift to an operation of setting a drop-off location as a new destination. Further, by displaying such a screen of FIG. 3A, if the user uses the public transportation from the public transportation platform near the own vehicle position, the user can use the public transportation nearest to the rental location by the scheduled time. After confirming that it is possible to arrive at the exit point of the transportation facility, it is possible to shift to an operation of setting the drop-off place as a new destination.

  3A, when the drop-off selection button 45 is operated using the operation unit 7, the screen shown in FIG. 3B is displayed by the drop-off location information presentation unit 34. (Hereinafter, referred to as a drop-off location detailed information screen) 47.

  As shown in FIG. 3 (b), in the unloading place detailed information screen 47, in addition to the unloading place information displayed on the warning screen 42, as the more detailed unloading place information, the name of the unloading place “XX station rental car” "And a map 48 of the drop-off location are displayed. In addition, on the detailed information screen 47 of the drop-off location, as the details of the drop-off location information, the name of the nearest station “XX station”, the name of the route to be used “XX main line, Δ △ monorail” and the name of the station nearest to the rental location “ "A Airport" is displayed. In addition, the drop-off location detailed information screen 47 has an operation button (hereinafter referred to as a destination change button) that allows an input operation to set “XX station rental car” as a drop-off location as a new destination. 50 is displayed. That is, the drop-off location detailed information screen 47 is a final screen for setting the drop-off location as a new destination. In addition, the drop-off location detailed information screen 47 shows an operation button 52 for accepting an input operation for returning to the warning screen 42 and a route from the drop-off location to the nearest station (see the broken line portion in FIG. 3B). Has been.

  When the destination change button 50 is operated using the operation unit 7 on such a detailed information screen 47 for the drop-off location, the destination setting unit 23 sets “XX station rental car” as a new destination. Will be set to.

  On the other hand, if the rental time excess selection button 43 is operated using the operation unit 7, the route guidance unit 25 performs route guidance according to the guidance route with the currently set rental location as the destination. Will be started or continued.

  Next, an example of the operation of the present embodiment will be described with reference to FIG.

  In the following description, for the sake of convenience, the rental location at the stop is used to return to the rental location after the user stops by a route guidance or self-propelled using a rental vehicle rented at the rental location. A description will be given of the operation in the case where the destination is set as the destination and the route guidance to the rental location is to be received.

  That is, first, as shown in step 1 (ST1), the destination setting unit 23 determines the rental vehicle rental location according to the user's input operation using the operation unit 7 on the destination setting operation screen. Set to.

Next, in step 2 (ST2), the return / arrival time setting unit 29 sets the operation unit 7 for the operation screen for selectively setting the return time for returning the rental vehicle or the arrival time for arriving at the rental location. to set the time T ₁ in accordance with the input operation of the user using.

  Next, in step 3 (ST3), the route search unit 24 searches for the optimum route from the vehicle position calculated by the vehicle position calculation unit 21 to the rental location set as the destination in step 1 (ST1). After presenting the searched optimum route as a candidate for a guidance route, the route guidance unit 25 sets the presented optimum route as a guidance route to the rental location after a user operation.

Is then performed in step 4 (ST4), the first estimated arrival time calculation unit 31, by the procedure described above, the calculation of the estimated arrival time T _2, up to the first rental location.

Then, either in step 5 (ST5), the drop-off location retrieval unit 32, is calculated predicted arrival time _{T 2,} a time later than the time _{T 1} set at step 2 (ST2) in step 4 (ST4) Determine whether or not. When a positive determination result is obtained in step 5 (ST5), the process proceeds to step 6 (ST6), and when a negative determination result is obtained, the process proceeds to step 14 (ST14).

  Here, the processing after step 6 (ST6) will be described first. First, in step 6 (ST6), the drop-off place search unit 32 searches for the drop-off place and the excess charge calculation unit 38 calculates the excess charge. Perform the calculation.

  Next, in step 7 (ST7), the unloading place search unit 32 determines whether or not the unloading place is detected by the search in step 6 (ST6). If a positive determination result is obtained in step 7 (ST7), the process proceeds to step 8 (step 8). If a negative determination result is obtained, the process proceeds to step 13 (ST13). .

  If the process proceeds to step 8 (ST8), the fare calculation unit 36 calculates the fare and the second estimated arrival time calculation unit 41 predicts the arrival time in step 8 (ST8) by the method described above. Is calculated and a drop-off fee is acquired by the drop-off location information presentation unit 34, and the process proceeds to step 9 (ST9).

  Next, in step 9 (ST9), a warning screen is displayed by the warning output unit 35, an excess fee is displayed by the excess fee display processing unit 39, and a drop-off location information is presented by the drop-off location information presentation unit 34, and then step 10 (ST10) is performed. ) The presenting of the drop-off location information is performed by the drop-off selection button 45 on the warning screen 42 as shown in FIG. 3A, the fare calculated by the fare calculation unit 36, the fare drop-off fee, and the second estimated arrival time. A process of displaying a plurality of screens in stages, such as the display of the estimated arrival time calculated by the calculation unit 41 and the display of the drop-off location detailed information screen 47 shown in FIG. In addition, the display of the excess charge here is an input operation for selecting use of a rental vehicle that has exceeded the lending time, such as a warning screen 42 including a lending time excess selection button 43 shown in FIG. It is performed on the operation screen that has been made possible.

  On the other hand, when the process proceeds from step 7 (ST7) to step 13 (ST13), only the display of the warning screen by the warning output unit 35 and the display of the excess charge by the excess charge display processing unit 39 in this step 13 (ST13). To go to step 10 (ST10).

  Next, in step 10 (ST10), the destination setting unit 23 and the route guidance unit 25 perform an input operation for setting the drop-off location where the drop-off location information is presented in step 9 (ST9) as a new destination (FIG. 4 (destination changing operation in FIG. 4) or an input operation for selecting use of a rental vehicle that has exceeded the lending time (lending time excess selection operation in FIG. 4) is determined. However, the destination change operation here is performed, for example, by operating the drop-off selection button 45 on the warning screen 42 shown in FIG. 3A, and then on the detailed information screen 47 of the drop-off location shown in FIG. A series of operations such as operating the destination change button 50 may be used. Further, the lending time excess selection operation may be an operation of the lending time excess selection button 43 on the warning screen 42 shown in FIG. In step 10 (ST10), if the destination change operation is performed, the process proceeds to step 11 (ST11). If the lending time excess selection operation is performed, the process proceeds to step 19 (ST19).

  Here, when the process proceeds to step 11 (ST11), in this step 11 (ST11), the destination setting unit 23 sets the drop-off place where the drop-off place information is presented in step 9 (ST9) as a new destination. And go to Step 12 (ST12).

  Next, in step 12 (ST12), the route search unit 24 searches for the optimum route to the drop-off location set as the destination in step 11 (ST11), and presents the found optimum route as a new guidance route candidate. Then, the route guidance unit 25 sets the presented optimum route as a new guidance route after a user operation. After that, route guidance to the drop-off location according to the set new guidance route is performed, and the process ends.

  Next, the processing after step 14 (ST14) will be described. First, in step 14 (ST14), the route guidance unit 25 starts route guidance according to the guidance route to the rental location, and then step 15 (ST15). Proceed to

Next, in step 15 (ST15), the first expected arrival time calculation unit 31 calculates T ₂ again at a predetermined timing as the calculation of T ₂ after the second time, and then performs step 16 (ST16). Proceed to Here, as the predetermined timing, for example, a point in time when a predetermined time has elapsed since the previous calculation of T ₂ or a point in time when traffic information on the guidance route shows a predetermined change (for example, a traffic jam section has increased). Can be mentioned.

Then, in step 16 (ST16), at a predetermined decision timing, as a target the latest _{T 2} calculated in the step 15 (ST15), a determination similar to the step 5 (ST5). If a positive determination result is obtained in step 16 (ST16), the process proceeds to step 6 (ST6). If a negative determination result is obtained, the process proceeds to step 17 (ST17). .

  Next, in step 17 (ST17), the route guidance unit 25 continues the route guidance according to the guidance route to the rental location and proceeds to step 18 (ST18).

  Next, in step 18 (ST18), the route guidance unit 25 determines whether or not it has arrived at the rental location that is the destination, and if a positive determination result is obtained in this determination, the processing ends. If a negative determination result is obtained, the process returns to step 15 (ST15).

  In addition, when it progresses to step 19 (ST19) from step 10 (ST10), in this step 19 (ST19), the route guidance part 25 performs the route guidance according to the guidance route to a lending place, and performs a process. finish.

  As described above, according to the present embodiment, when it is unlikely that the rental vehicle arrives until the set return time or arrival time at the rental location, the discard location information presenting unit 34 causes the drop-off location to be displayed. Since the information can be presented to the user as an operation that can be used to set the drop-off location as a new destination, route guidance can be performed according to the guide route to the drop-off location. It is possible to increase the possibility of returning the rental vehicle to the return place.

  In the present embodiment, the drop-off place search unit 32 may detect a plurality of nearest drop-off places at different public transport places. In this case, it is only necessary to present each of the plurality of detected drop-off locations in a state where each drop-off location can be set as a new destination alternatively.

  The present invention can also be applied to known dynamic route guidance for re-searching for an optimum route to a rental location according to a change in traffic information on a guidance route to the current rental location. In this case, the first expected arrival time calculation unit 31 sets the time when a new guidance route to the rental location is set by the dynamic route guidance as one of timings for calculating the expected arrival time at the rental location. May be included.

  Further, depending on the map data and the return place information, it is of course possible that the name of the rented place may be the same as or similar to the name of the nearest public transportation to the rented place.

  Furthermore, the second expected arrival time calculation unit 48 uses the map data or the like to calculate the time required to walk from the landing to the rental location at the expected arrival time at the public transportation nearest to the rental location. The estimated arrival time when using public transportation to the rental location may be calculated by adding the required time to the estimated arrival time at the landing. In this case, the drop-off location information presentation unit 34 may display the estimated arrival time when using public transportation to the rental location as the drop-off location information.

(Second Embodiment)
Next, a second embodiment of the navigation device according to the present invention will be described focusing on the differences from the first embodiment.

  In the present embodiment, unlike the first embodiment, the drop-off location information presentation unit 34 functions as a fee determination unit. In other words, in the present embodiment, the drop-off location information presentation unit 34 makes a charge determination based on at least the fare calculated by the fare calculation unit 36 and the excess charge calculated by the excess charge calculation unit 38. Yes. However, the charge determination means that a person who uses public transportation from the nearest public transportation platform to the landing location searched by the unloading location search unit 32 from the nearest public transportation platform to the rental location is the rental vehicle. This refers to a determination as to whether or not the fee is lower than when the rental vehicle is used up to the rental location exceeding the rental time. When a drop-off fee is charged at the drop-off location detected by the drop-off location search unit 32, the drop-off location information presentation unit 34 considers this drop-off fee in the fee determination.

  In this embodiment, the drop-off location information presentation unit 34 presents the drop-off location information only when a positive determination result is obtained in the charge determination. On the other hand, if a negative determination result is obtained in the charge determination, for example, in the warning screen 42 shown in FIG. 3A, the fare calculated by the drop-off selection button 45 and the fare calculation unit 36, the drop-off The charge and the estimated arrival time calculated by the second estimated arrival time calculation unit 41 will not be displayed, and accordingly, the transition to the landing area detailed information screen 47 shown in FIG. Will not be done.

  FIG. 5 shows an example of the operation of the navigation device 1 of the present embodiment.

  In this embodiment, as shown in step 20 (ST20) in FIG. 5, the fee determination is performed between step 8 (ST8) and step 9 (ST9) shown in FIG.

  If a positive determination result is obtained in step 20 (ST20), the process proceeds to step 9 (ST9), and if a negative determination result is obtained, the process proceeds to step 13 (ST13).

  According to the present embodiment, the user can determine whether or not it is possible to go to the rental location at a low fee by making a positive determination result in the fee determination a condition for presenting the drop-off location information. Therefore, it is possible to further improve the convenience when the user wants to give priority to the user to go to the rental location at a price lower than the excess charge.

(Third embodiment)
Next, a third embodiment of the navigation device according to the present invention will be described focusing on the differences from the first embodiment.

  In the present embodiment, unlike the first embodiment, the drop-off location information presentation unit 34 is an estimated arrival time at the nearest public transportation to the rental location calculated by the second estimated arrival time calculation unit 41. However, when it is earlier than the time set by the return / arrival time setting unit 29, the drop-off location information detected by the drop-off location search unit 32 is presented. On the other hand, when the drop-off location information is not presented, for example, in the warning screen 42 shown in FIG. 3A, the drop-off selection button 45, the fare calculated by the fare calculation unit 36, the drop-off fee, and the second The estimated arrival time calculated by the estimated arrival time calculation unit 41 is not displayed, and accordingly, the transition to the unloading place detailed information screen 47 shown in FIG. 3B is not performed. become.

  FIG. 6 shows an example of the operation of the navigation device 1 of the present embodiment.

In this embodiment, as shown in step 21 (ST21) of FIG. 6, the drop-off location information presentation unit 34 gets off the nearest public transportation system to the rental location calculated by the second expected arrival time calculation unit 41. Time determination is performed to determine whether or not the estimated arrival time at the place is earlier than the time T ₁ set by the return / arrival time setting unit 29.

  If a positive determination result is obtained in step 21 (ST21), the process proceeds to step 9 (ST9), and if a negative determination result is obtained, the process proceeds to step 13 (ST13).

  According to the present embodiment, by obtaining a positive determination result in the time determination as a condition for presenting the drop-off location information, lending by the time set by the return / arrival time setting unit 29 Convenience for users who want to prioritize arriving at the rented place on time by eliminating the need for the user to make a self-determination as to whether or not they can get to the nearest public transportation stop Can be further increased.

  In addition, this invention is not limited to embodiment mentioned above, A various change can be made in the limit which does not impair the characteristic of this invention. For example, if the return time is set by the return / arrival time setting unit 29, the abandonment by the abandonment location information presenting unit 34 indicates that a positive determination result is obtained by the fee determination shown in the second embodiment. If the return time / arrival time setting unit 29 sets the arrival time as a condition for presenting the location information, a positive determination result can be obtained by the time determination shown in the third embodiment. You may comprise so that it may be set as the conditions of presentation of the drop-off place information by the information presentation part 34. FIG.

  Moreover, it is good also as conditions for the presentation of the abandonment place information by the abandonment place information presentation part 34 that a positive determination result is obtained in both the charge determination in the second embodiment and the time determination in the third embodiment.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 14 Hard disk drive 23 Destination setting part 24 Route search part 25 Route guidance part 29 Return / arrival time setting part 30 Current time acquisition part 31 1st estimated arrival time calculation part 32 Unloading place search part 34 Unloading place presentation part

Claims (9)

A navigation device mounted on a rental vehicle with a predetermined rental time,
Destination setting means for setting a first return place where the rental vehicle is to be returned as a destination;
Route search means for searching for an optimum route to the first return place set as the destination by the destination setting means;
Route guidance means for performing route guidance using the optimum route to the first return location searched by the route search means as a guidance route;
A return / arrival time setting means for setting a return time for returning the rental vehicle or an arrival time for arriving at the first return place;
Current time acquisition means for acquiring the current time;
Based on the current time acquired by the current time acquisition unit and the guide route to the first return location, a first expected arrival time calculation unit that calculates an estimated arrival time at the first return location. When,
First storage means storing information on a plurality of return locations where the rental vehicle can be returned;
Vehicle position detecting means for detecting a current position of the rented vehicle;
A second storage means for storing at least information about a public transportation platform as information about public transportation;
When the estimated arrival time at the first return place calculated by the first estimated arrival time calculating means is later than the time set by the return / arrival time setting means, the first information and information on the return location stored in the first storage means, and the current position of the rental vehicle detected by the front Symbol vehicle position detecting means, about the platform of public transport stored in the second storage means And a return place search means for searching for a second return place nearest to a public transportation platform existing in a predetermined area in the vicinity of the current position of the rented vehicle,
When the second return location is detected by the return location search means, an operation for setting the second return location as a new destination is performed on the detected information on the second return location. A return location information presenting means to present to the user as possible,
The destination setting means sets the second return place where the information is presented by the return place information presenting means as a new destination waiting for the operation,
The route search means searches for an optimum route to the second return place set as a new destination by the destination setting means,
The navigation apparatus characterized in that the route guidance means performs route guidance using the optimum route to the second return location searched by the route search means as a new guidance route. In the second storage means, information on the fare for each use section of public transport is stored,
Third storage means for storing information relating to the rental vehicle usage fee;
Based on information about the platform and the fare for each use section stored in the second storage means, the first return route from the public transportation facility nearest to the second return location that exists in the predetermined area. A fare calculation means for calculating the fare for public transportation to the nearest public transportation exit at the return location,
Based on the information related to the rental vehicle usage fee stored in the third storage means, an excess fee when the rental vehicle is used up to the first return location after exceeding the rental time of the rental vehicle. An excess charge calculation means to calculate,
An excess charge display means for displaying the excess charge calculated by the excess charge calculation means on a display unit,
The return location information presenting means includes an operation for setting the fare calculated by the fare calculating means as a new destination as the presentation of information relating to the second return location; the navigation system of claim 1, which comprises carrying out a process of displaying on the display unit in comparison possible display modes of said excess charges displayed by the extra charges display means. The return place information presenting means, when a drop-off fee for the rental vehicle is imposed at the second return place, shows the drop-off charge as the information on the second return place, and the fare calculation means. The navigation apparatus according to claim 2 , wherein a process of displaying on the display unit together with the fare calculated by the step is performed. Based on at least the fare calculated by the fare calculation means and the excess charge calculated by the excess charge calculation means, the first return place from the nearest public transportation platform to the second return place Is it cheaper to use the public transportation until the nearest public transportation to get off compared to the case where the rental vehicle exceeds the rental time of the rental vehicle and uses the rental vehicle to the first return place? A charge determination means for determining whether or not,
The return location information presenting means, if a positive determination result is obtained by the fee determining means to claim 2 or claim 3, characterized in that performing the presentation of information relating to the second return location The navigation device described. The charge determination means, when a drop-off fee for the rental vehicle is imposed at the second return place, takes this drop-off fee into consideration for determining whether or not the charge is low. 5. The navigation device according to 4 . The second storage means stores a timetable for each public transportation platform,
Based on the current time acquired by the current time acquisition means, the information about the landing stored in the second storage means, and the timetable, the second return place existing in the predetermined area The second expected arrival time calculation for calculating the estimated arrival time at the landing when using the public transportation from the nearest public transportation platform to the nearest public transportation exit at the first return location With means,
The return location information presenting means provides the information about the second return location to the nearest public transportation to the first return location calculated by the second estimated arrival time calculating means. the estimated arrival time, any of claims 1 to 5, characterized in that performs a process of displaying on the display unit in the second return location can be operated to set a new destination display form The navigation device according to claim 1. The return location information presenting means is configured such that the estimated arrival time at the nearest public transportation to the first return location calculated by the second expected arrival time calculating means is the return / arrival time setting means. The navigation device according to claim 6 , wherein information related to the second return place is presented when the time is earlier than the time set by the step. Equipped with a traffic information acquisition means for acquiring a transportation information,
The first predicted arrival time calculation unit uses the traffic information acquired by the traffic information acquisition unit to calculate an estimated arrival time at the first return location. Item 8. The navigation device according to any one of Item 7 . The first return place is a rental place of the rental vehicle,
The navigation device according to any one of claims 1 to 8 , wherein the rental vehicle is a vehicle or a rental car used for car sharing.

Images