JP2010197070A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cause a user to be given information on a taxi fare from an overnight installation to an own house or on a usage rate, etc. of an installation for staying in the vicinity of the overnight installation in cases where an overnight installation is named as a destination, the installation having a high probability of being used after the last train. <P>SOLUTION: A control means 10 discriminates whether or not an objective installation named as a destination via an input means 12 corresponds to an overnight installation previously stored in a POI data storage means 15. On condition that the objective installation is discriminated as an overnight installation, the control means 10 executes a process for calculating a taxi fare from the vicinity of the objective installation to the previously-named own house by referring to taxi fare data in the storage means 15, a process for searching for an installation for staying in the vicinity of the objective installation while calculating a usage rate of the installation for staying by referring to data on the rate of the installation for staying in the storage means 15, and a process for informing, via a display means 13, a user of the taxi fare or the usage rate of the installation for staying. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a navigation device that searches a candidate route from an arbitrary departure point to a destination and presents it to a user, and in particular, a late-night business facility with a high probability of use after the last train is designated as the destination. In this case, the present invention relates to a navigation apparatus in which information such as a taxi fee from the late-night business facility to the home and a use fee of a stay facility near the late-night business facility is provided to the user.

  Navigation devices are roughly classified into self-contained devices and terminal-use devices. The self-contained type is a method in which a candidate route search process, candidate route display, and guidance to a destination are collectively performed by a navigation device, and a general car navigation device corresponds to this. Recently, a self-contained portable navigation device that can be removed from the vehicle and carried by the user has also been proposed (see Patent Document 1).

  On the other hand, the terminal-use type is arranged on a network and is simultaneously used by many users as a route search server that distributes information to a terminal device on the user side. In the navigation system constructed in this way, the route search server is responsible for storing map data with a large data capacity and searching for candidate routes with a large load, and displaying candidate routes and guiding guidance to the destination. This is done via a terminal device on the user side. For example, a route guidance system that searches for a candidate route of a train or bus to a specified departure station and destination station with a route search server on the Internet and displays it on a personal computer as a terminal device, or from a specified departure location A walking navigation system that performs candidate route search for a walking route to a destination, generates candidate route information and guidance information on a route search server, and displays the information on a mobile phone or PDA as a terminal device, etc. It has been known.

  If the portable navigation device as described above or a portable terminal device connected to the route search server is used, not only road guidance such as a travel route and a walking route, but also a public transportation facility (hereinafter referred to as a train or bus). Route guidance using simply on-time transportation is also possible. As such a navigation system, for example, a system is proposed in which the “substantial last train time” is calculated and notified to the user's mobile terminal device in advance so that the user does not miss the last train unexpectedly. ing. (See Patent Documents 2 and 3). In addition, the actual last train time in this specification does not indicate the time of the last stop / final bus (hereinafter referred to as the last train, etc.) for each route, but from the nearest station of departure to the nearest station of destination. When the candidate route is searched, the departure time in the candidate route with the latest departure time at the nearest station of the departure point is indicated.

JP 2003-42779 A JP 2003-58663 A JP 2003-254777 A

  By the way, for regular transportation, the service is usually stopped at midnight, so even if the user searches for a candidate route at midnight, there is no route until the early morning when the operation is resumed. You cannot receive guidance. Therefore, if you use a facility with high probability of use after the last train, such as a pub or billiard hall (hereinafter referred to as a late-night business facility), you drive over a car because you are on the train or drinking. If it is impossible to return home, you can go home by taxi, drink until the dawn when trains and other services are resumed, or use staying facilities such as hotels, etc. It is often a problem for the user to select what action to use after using the facility.

  This situation is often faced as a result of unforeseen end-of-train rides, especially when stopping at a drinking establishment that has a high probability of drinking after the last train such as a pub or karaoke shop (hereinafter referred to as a drinking-related facility). As a rule of thumb, many people know. In addition, if you drive to such a drinking-related facility, leave the car you have parked on-site immediately by taxi or stay at the nearest hotel until your sickness is completely awakened As such alternatives, the room for action selection can be further narrowed.

  As described above, the present invention has been made paying attention to late-night action selection that a user can face when using a late-night business facility until the last train is too late. If a late night business facility such as a pub with high probability of use is designated as the destination, even if you leave the facility in a situation where it is impossible to return home by driving after the last train etc., it will be the place Users can be provided with late-night useful information such as taxi fare from the target facility to their home and hotel usage fee near the target facility so that they can formulate a better action plan that suits each person's preference and situation without panic. It is in providing the navigation apparatus which aimed at.

In order to solve the above problems, the invention of the present application
Input means for specifying a destination, current position detection means, map data storage means, display means, current position detected by the current position detection means, the specified destination, and the map data storage means Control means for searching for candidate routes from the current location to the destination with reference to the map data stored in the navigation device,
Furthermore, midnight business facility data for determining whether or not it is a midnight business facility, taxi fare data for calculating a taxi fare, and stay facility fare data for calculating a use fee of the stay facility are: Stored POI data storage means,
When the facility is designated as a destination, the control means refers to the midnight business facility data, and determines whether or not the target facility is the midnight business facility;
On the condition that the target facility is determined to be the late-night business facility, the taxi charge from the vicinity of the target facility to the home stored in advance as home position data is calculated with reference to the taxi fee data. Taxi fare calculation process,
With reference to the map data, searching for a staying facility located in the vicinity of the destination facility, and referring to the staying facility charge data, a staying fee calculation process for calculating a usage fee of the staying facility;
And a notification process for notifying the calculated taxi use fee or stay facility use fee via the display means.

  Further, the late-night business facility data is drinking-related facility data for specifying a drinking-related facility.

  In addition, the stay facility fee data includes recreational facilities and / or accommodation facility use fee data in which stay is possible.

  Further, the taxi fare data includes usage charge data for a driving agency service.

  The navigation device is a detachable car navigation device that can be removed from a vehicle and carried.

Further, the vehicle further has traffic route data storage means in which route data composed of route operation time data and route network data is stored,
The control means, on the condition that it is determined that the target facility is the midnight business facility,
Referring to the route data and the map data, the destination facility for boarding the final train based on the last train time at the nearest station of the destination facility and the required time from the destination facility to the nearest station To calculate the required departure time for
The notification process is performed a predetermined time before the essential departure time.

  According to the navigation device of the present invention, when a late night business facility such as a pub with high probability of use after the last train is designated as the destination, it is impossible to return home by driving in the time zone after the last train, etc. Taxi fare from the target facility to your home or hotels near the target facility so that even if you leave the facility, you can devise a better action plan that suits each person's preference and situation without panicking on the spot There is provided a navigation device designed to provide users with late-night useful information such as usage fees.

  That is, in the invention of the present application, when a facility is designated as a destination, the control means refers to the midnight business facility data and determines whether or not the target facility is the midnight business facility. Processing and taxi use fee from the vicinity of the target facility to the home stored in advance as home position data with reference to the taxi fee data on the condition that the target facility is determined to be the midnight business facility A taxi fare calculation process for calculating the stay facility and a search for a stay facility located in the vicinity of the target facility with reference to the map data and a use fee for the stay facility with reference to the stay facility charge data And a notifying process for notifying the calculated taxi use fee or stay facility use fee via the display means.According to this configuration, when a late-night business facility such as a izakaya that has a high probability of use in the middle of the night after the last train is designated as the destination, a taxi fee from the vicinity of the destination facility to the home, or a hotel usage fee near the destination facility Such late-night useful information is provided to the user. Therefore, even if the user leaves the facility after the last train, etc., he / she can devise a better action plan suitable for each person's preference and situation by referring to these late-night useful information without being panicked. It becomes like this.

  The late-night business facility data is drinking-related facility data for specifying a drinking-related facility. According to this configuration, the determination as to whether or not it is a late-night business drinking-related facility is performed based on whether or not it is a drinking-related facility. This is because drinking-related facilities such as pubs are expected to have high probability of use after the last train, and if you stop by such a drinking-related facility, there is a high probability that you will have to take an unexpected train. Because it is expected to have. Therefore, the utility value is even higher for the user.

  The accommodation facility fee data includes usage fee data of an amusement facility and / or an accommodation facility where the stay is possible. According to such a configuration, information on not only a hotel as a stay facility but also a recreational facility that can be stayed in a private room and is generally less expensive than a hotel is provided, so that the use value is higher for the user.

  The taxi fare data includes usage charge data for the driving agency service. According to such a configuration, when the navigation device is used as a car navigation system and the vehicle is driven to the vicinity of the target facility, the usage fee for the driving agency service is presented as taxi information. It can be used as a material for determining whether or not to return home immediately.

  In addition, it is a detachable car navigation device that can be removed from the vehicle and carried. According to such a configuration, when going from the current location to the destination facility, a navigation device that can receive guidance for both the vehicle route and the walking route and can acquire the above-mentioned useful information at midnight is realized.

  Further, the control means refers to the route data and the map data on the condition that the target facility is determined to be the midnight business facility, and the last train time at the nearest station of the target facility and the target facility Based on the required time from the nearest station to the nearest station, a process of calculating an essential departure time of the target facility for boarding the final train is executed, and the notification process is executed a predetermined time before the required departure time To do. According to this configuration, it is possible not only to know that the actual last train time is approaching even during the stay at the target facility, but at that time, referring to the useful information again based on the current physical condition etc. You can get an opportunity to develop an action plan.

It is a block diagram which shows the principal part structure of the portable navigation apparatus of this invention. It is the flowchart which showed the content of the main process of a control means. It is a figure which shows an example of the content of the late-night useful information alert | reported to a user via a display means. It is a flowchart which shows the processing content for the notification immediately before the last train of useful information at midnight performed with the portable navigation system of the modification of this invention.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiment shown below exemplifies a portable navigation device for embodying the technical idea of the present invention, and is not intended to specify the present invention as this portable navigation device. In addition, the present invention is equally applicable to a navigation apparatus that does not have the guidance guidance function exemplified in the following embodiment and only presents candidate routes.

  The structure of the principal part of the portable navigation apparatus 1 according to the embodiment of the present invention will be described with reference to FIG. In the following embodiment, an example of determining whether or not the facility is a late-night business facility based on whether or not it is a drinking-related facility having a high probability of drinking is shown.

  The control means 10 comprises a processor comprising a CPU (not shown) and a RAM / ROM (not shown), and controls the operation of each part of the portable navigation device 1 according to a control program recorded in the RAM and ROM. Is. Then, as main operations, by referring to the map data stored in the map data storage means 14 or the route data stored in the route data storage means 16, the candidate route search processing and candidate route search processing of roads and scheduled transportation are performed. Based on the searched route, the guidance guidance processing from the designated departure point to the destination is executed. Further, “drinking related facility determination processing”, “taxi fee calculation processing”, “stay fee calculation processing”, “parking fee calculation processing”, etc., which are the main parts of the present invention, POI data (POI: Point Of Interest) Browse and execute.

  The current position detection means 11 includes a GPS receiver that receives radio waves including time information from a plurality of GPS satellites orbiting the earth. Furthermore, the current position detection means 11 can also use a self-contained navigation device including a distance sensor, an azimuth sensor, a snake angle sensor, and the like.

  The input means 12 is composed of various keys, switches, and the like for performing operation input, starting point, and destination input in the portable navigation device.

  The display unit 13 plays a role as a man-machine interface for displaying a map image, a candidate route image, and a guidance information image so that the user can visually recognize the image. The display unit 13 includes, for example, a liquid crystal display. In addition, this display means 13 can also be comprised so that it may comprise a touch sensor and may bear a part of input means. In this case, selection input is performed when the user touches an icon displayed on the screen.

  The map data storage means 14 stores map data including road node data whose nodes are nodes such as road intersections and branch points, and road link data whose routes are links between the nodes. Yes. More specifically, the road (route) of the map data is the node, the position of the inflection point is the road node, the route connecting each road node is the link, and the cost information (distance and required time) of all the links is the database. I have. Then, the control means 10 refers to the road data in the map data storage means 14 and sequentially searches for a link from the departure node to the destination node, and finds the node and link having the smallest link cost information. A candidate route search process for specifying the shortest route to be traced as a candidate route is performed, and a user guidance process to the destination via the candidate route is executed via the portable navigation terminal. As such a route search method, a known method called label determination method or Dijkstra method is used.

  Furthermore, the road node data stored in the map data storage means 14 includes road node numbers, position coordinates, the number of connection links, intersection names, etc., as well as guidance points corresponding to guidance points such as intersections, and right and left turns. Also, guidance guidance data for guiding straight ahead is stored. The road link data includes a road node number as a starting point and an end point, road type, link length (link cost), required time, number of lanes, road width, and the like. Further, data such as bridges, tunnels, railroad crossings, tollgates, etc. are given as link attributes to the road link data. The road type is information including a distinction between an expressway and a toll road, and distinction such as a national road or a prefectural road.

  The map data storage means 14 further stores facility data including facility position, facility shape, facility name, and category type. In this embodiment, the control means 10 refers to the category type of the facility data when determining whether or not the facility designated by the user (hereinafter referred to as the target facility) is a late-night business facility.

  Information on which category type facility should be determined as a drinking-related facility is designated in advance by the manufacturer or by the user. This designation is performed by designating a category type, and the designated category type is stored in the POI data storage unit 15 as drinking-related facility data. Then, the control means 10 specifies the category type of the target facility by the map data storage means 14 when executing the drinking-related facility discrimination processing, and the category type specified thereby is stored in the POI data storage means 15. It is determined whether or not it coincides with drinking-related facility data. As the drinking-related facility data, for example, “Izakaya”, “Bar”, “Club”, “Karaoke”, etc. as category types are preferably specified.

  The POI data storage unit 15 further stores “taxi fee data”, “stay facility fee data”, and “parking fee data”.

  “Taxi fare data” is data that defines the relationship between mileage and midnight fare, and is defined as an average fare that does not distinguish taxi companies, but it should be stored as fare data by taxi company. Also good.

  When the control unit 10 determines that the target facility is a drinking-related facility as a result of the drinking-related facility determination process, the control unit 10 performs a route search from the target facility to the user's designated home, and calculates an expected mileage. By comparing the estimated travel distance and the taxi fare data, the taxi fare (expected fare) required for returning home is calculated and the taxi fare is notified to the user via the display means 13. In addition, when the user drives his / her car and arrives at the target facility, when he / she comes home by taxi, he / she will leave the car in a parking lot or the like, so this taxi fare data is the so-called driving agency fare It is preferable to use data together.

  As the “stay facility fee data”, the name of a stay facility that can be used in a private room such as a hotel or a cartoon cafe, and the use fee of the stay facility are stored. When it is determined that the destination facility is a drinking-related facility, the control means 10 refers to the map data in the map data storage means 14 to search for a stay facility near the destination facility, and uses the name of the stay facility as a foothold. Furthermore, the usage fee information of the corresponding accommodation facility is specified from the accommodation facility fee data, and the name, location, and usage fee information of the accommodation facility are notified to the user via the display means 13. In addition, the stay facility charge data is charge data according to the type of use such as stay / temporary stay if it is a hotel, or charge data according to the use time if it is a cartoon cafe or karaoke shop, etc. You may comprise so that it can alert | report.

  As “parking fee data”, a facility name of a paid parking facility (paid parking lot) and a usage fee of the paid parking lot in the midnight time zone are stored. When it is determined that the target facility is a drinking-related facility, the control means 10 searches for a pay parking lot near the target facility with reference to the map data in the map data storage means 14, and uses the name of the pay parking facility as a foothold. Further, the usage fee information of the corresponding paid parking lot is specified from the parking fee data, and the name, location and usage fee information of the paid parking facility are notified to the user via the display means 13. The parking fee data may be an average parking fee for the region as general information, but detailed fee information can be notified to the user as fee data corresponding to the usage time for each parking lot or each parking lot company. Is preferable.

  The route data storage means 16 includes route data including operation time data in which operation time data of regular transportation (train routes, bus routes) is databased, and traffic network data in which route networks are databased based on this. Stored. The control means 10 refers to these databases according to route search conditions such as desired departure date and time, departure location, destination and desired arrival date and time specified by the user, and determines the departure location and destination including transit (transfer). The route of the available traffic route to be connected is sequentially traced, and the candidate route (departure station, destination station, traffic route to be used, type of train such as limited express / quasi express / ordinary train) matching the route search condition is displayed via the display means 13. Present one or more. In general, as route search conditions, it is possible to specify a required time, the number of connections, a fare, and the like.

  The communication means 17 is connected to a predetermined server 18 on the communication network, and can acquire the latest map data, route data, and various fee data (taxi fee data, stay facility fee data, parking fee data) It is used to update the data contents of the data storage means 14, route data storage means 16, and POI data storage means 15. The drinking-related facility data stored in the POI data storage unit 15 is automatically corrected or additionally stored in a facility with a higher probability of drinking defined by the predetermined server 18 via the communication unit 17. It is also possible to configure.

  The voice notification means 19 performs various voice notifications in the portable navigation device 1 such as guidance notification at the time of guidance guidance, and is constituted by a speaker or the like.

  Next, the control operation of the control means 10 in the portable navigation device 1 of the present invention will be described using the flowchart of FIG.

  When the route search function of the portable navigation device 1 is activated and the target facility is designated by the user via the input means 12 (step S1, YES), the drinking related facility whether or not the target facility is a drinking related facility. A discrimination process is executed (step S2). Here, if the target facility is stored as the category type “Izakaya” in the map data of the map data storage means 14 and the category type “Izakaya” is also stored in the drinking-related facility data of the POI data storage means 15. Then, it is determined that the target facility is a drinking-related facility (YES in step S2), and then whether home registration is present is determined (step S3). When it is determined that the destination is not a drinking-related facility (step S2, NO), the normal route search and guidance after step S8 are executed without executing the processing of steps S3 to S7 below. It will be.

  Whether the home registration is present or not is determined by confirming whether or not the home position data of the user is stored in advance in a RAM (not shown) of the control means 10, for example. Since this home position data is necessary to calculate the taxi fare from the target facility to the home in the subsequent step S4, if the home position data is not registered (step S3, NO), the following steps The normal route search and guidance after step S8 are executed without executing the processing of S4-7. In this embodiment, the home position data is registered in advance. However, in the case where the home position data is not registered at the time of route search, it may be configured to newly accept an input from the user at that time.

  When it is confirmed that the home position data is registered (step S3, YES), a taxi fare calculation process from the target facility to the home is executed (step S4). Specifically, the shortest travel distance is calculated by referring to the map data in the map data storage means 14 to perform a route search from the target facility to the user's designated home in advance, and this shortest travel distance and POI data storage means By comparing the 15 taxi fare data, the taxi fare required for returning home is calculated, and the shortest travel distance and the calculated taxi fare are temporarily stored in the RAM.

  Next, a stay fee calculation process near the destination facility is executed (step S5). Specifically, a staying facility near the destination facility is searched with reference to the map data in the map data storage unit 14, and then the staying facility fee data in the POI data storage unit 15 is obtained using the name of the staying facility as a foothold. The usage fee information (for example, accommodation fee, available time, cartoon cafe usage fee table, etc.) of the corresponding stay facility is specified from the above, and the name, location, and usage fee information of the stay facility are temporarily stored in the RAM. In this example, the usage fee information is 'specified' in the stay fee calculation process, but in order to present more detailed usage fee information to the user, for example, the necessary stay time until the first departure car is calculated. Then, it is possible to adopt a configuration that literally calculates the usage fee based on the staying time.

  Next, a parking fee calculation process near the destination facility is executed (step S6). Specifically, referring to the map data in the map data storage means 14, a paid parking lot near the destination facility is searched, and then the name of the paid parking facility is used as a foothold, and further the parking fee in the POI data storage means 15 The usage fee information of the corresponding paid parking lot is specified from the data, and the name, location, and usage fee information of the paid parking facility are temporarily stored in the RAM. This parking fee specifying process only needs to be executed when the portable navigation device 1 is mounted on a vehicle and used as car navigation (that is, when a candidate route search for a road is performed), and includes fixed time transportation. If a walking route search is executed, it may be omitted.

  Next, the late-night useful information created based on the data temporarily stored in the RAM in steps S4 to S6 is displayed by the display means 13 (step S7). As this late-night useful information, as shown in FIG. 3, "taxi information", "stay information", and "paid parking information" are shown. The late-night useful information is preferably configured to be notified a predetermined time before the last train time, as will be described later. In this case, it is preferable to register a mail address of a user's mobile phone or the like as a notification destination so that the information can be transmitted to the notification destination.

  As taxi information, for example, “facility location”, “home location”, “expected mileage”, and “expected fare” are notified to the user. This taxi fare information can be used as a material for determining whether or not the user uses the earliest return means after the last train. Also, when this portable navigation device 1 is used as a car navigation system and has driven a car to the vicinity of the target facility, if the driving agency service usage fee is presented as taxi information, It can also be used to determine whether or not to return home immediately.

  As the stay information, for example, “hotel name”, “hotel location” (address or map information), “accommodation fee”, “check-in time”, and “check-out time” are notified to the user. Further, a route search from the target facility to the hotel may be executed to calculate and display the required time. This stay information can be used as a material for determining whether or not the user spends a nap in the room while avoiding returning home by taxi or time-scraping outdoors.

  As the pay parking information, for example, “parking name” and “parking location” (address or map information) are notified to the user. This paid parking information can be used as reference information for parking costs when there is no parking space dedicated to the destination facility. If this is difficult, you can use it to determine whether you want to go home by taxi with your car on site.

  After the process of step S1-7 is complete | finished, the route search from the present location acquired by the present position detection means 11 with reference to map data or route data to the destination facility designated by the user is performed, and the destination facility is reached. Guidance is started (step S8). The guidance guidance is executed until it arrives at the destination facility (step S9, NO → YES).

  As described above, according to the portable navigation device 1 of the present embodiment, not only when the user carries and receives guidance guidance of a walking route including a route, but also when the user uses the vehicle as a car navigation device. When a drinking-related facility is designated as the destination, the user is provided in advance with useful information such as an estimated fare for a taxi from the destination facility to his home, a usage fee for a driving agency service, and a hotel stay fee near the destination facility. Therefore, even if the user drinks unscheduled in the time period after the last train, etc., such useful information can be used without forcibly staying at a tavern or getting lost immediately after leaving the store. It will be possible to easily formulate subsequent action plans.

  In the above embodiment, when a drinking-related facility is designated as the destination, the taxi fare is immediately notified to the user on the assumption that home registration has been made. It is preferable that notification (notification immediately before the final train) is issued only a predetermined time before the required departure time, which is a precondition for boarding, or in combination with the notification (step S7) at the time of candidate route search shown in the flowchart of FIG. .

  Even in such a navigation device that performs the notification twice, the operation of the control means 10 shown in the flowchart of FIG. 2 is basically the same, but before or after the route search process shown in step S8. In parallel, notification time calculation processing is performed. The process flow of the control means 10 from when this notification time calculation process is performed to when the notification immediately before the final train is actually performed will be described with reference to FIG.

  In the notification time calculation process, the control means 10 refers to the route data and the map data, calculates the actual last train time at the nearest station of the target facility, and the required time from the target facility to the nearest station, The required departure time of the target facility, which is a precondition for boarding, is calculated. The essential departure time calculation process is a known technique as disclosed in, for example, Patent Document 3, and will not be described in detail. Further, by subtracting a predetermined time (1 hour in this example) from the calculated required departure time, the notification time immediately before the last train is calculated and temporarily stored in the RAM (step S1).

  The time required from the target facility to the nearest station is generally assumed to be walking, and the time required for walking is calculated based on the average walking speed. If the distance is too long to be suitable for walking, that is, if it takes a predetermined time, for example, if the time required for walking exceeds 15 minutes, the time required to be used by other means of transportation, such as taxi movement. calculate. In that case, it is preferable to clearly indicate the moving means to be used at the departure time.

  When the above processing is completed, the timing process is continued until the notification time immediately before the last train arrives (step S2, NO), and when the notification time immediately before the last train arrives (step S2, YES), the contents as shown in FIG. Late-night useful information is displayed on the display means 13 (step S3). In addition, it is preferable that the late-night useful information in this case further displays the actual last train time, the required departure time, and the required time from the destination facility to the nearest station.

  As described above, in the portable navigation device 1 according to the embodiment of the present invention described above, it is considered most effective to adopt the “business hours” of the facility as the late-night business facility data, but it is difficult to collect data. In view of the above, it is not limited to this. For example, the category type of a facility that is widely used in general navigation devices can be used as it is. In this case, for example, “Izakaya” and “Karaoke shop” as the category type are stored as POI data by the manufacturer or the user's arbitrary designation so that the facility is likely to be used after the last train. It is also possible to store the facility category type in the means 15 in advance and compare it with the category type of the target facility to determine whether it is a late-night business facility. In addition, use charge calculation processing and notification processing should be executed after confirming the necessity of use after the last train of the target facility, etc. by referring to the time when the destination was specified and the arrival time at the target facility. It is also possible to do.

DESCRIPTION OF SYMBOLS 1 Portable navigation apparatus 10 Control means 11 Current position detection means 12 Input means 13 Display means 14 Map data storage means 15 POI data storage means 16 Route data storage means 17 Communication means 18 Predetermined server 19 Voice notification means

Claims (6)

Input means for specifying a destination, current position detection means, map data storage means, display means, current position detected by the current position detection means, the specified destination, and the map data storage means Control means for searching for candidate routes from the current location to the destination with reference to the map data stored in the navigation device,
Furthermore, midnight business facility data for determining whether or not it is a midnight business facility, taxi fare data for calculating a taxi fare, and stay facility fare data for calculating a use fee of the stay facility are: Stored POI data storage means,
When the facility is designated as a destination, the control means refers to the midnight business facility data, and determines whether or not the target facility is the midnight business facility;
On the condition that the target facility is determined to be the late-night business facility, the taxi charge from the vicinity of the target facility to the home stored in advance as home position data is calculated with reference to the taxi fee data. Taxi fare calculation process,
With reference to the map data, searching for a staying facility located in the vicinity of the destination facility, and referring to the staying facility charge data, a staying fee calculation process for calculating a usage fee of the staying facility;
And a notification process for notifying the calculated taxi use fee or stay facility use fee via the display means.   The navigation apparatus according to claim 1, wherein the late-night business facility data is drinking-related facility data for specifying a drinking-related facility.   The navigation apparatus according to claim 1, wherein the stay facility fee data includes usage fee data of an amusement facility and / or an accommodation facility where a stay is possible.   The navigation apparatus according to claim 1, wherein the taxi fare data includes usage charge data for a driving agency service.   The navigation device according to claim 1 or 2, wherein the navigation device is a detachable car navigation device that can be removed from a vehicle and carried. It further has traffic route data storage means in which route data composed of route operation time data and route network data is stored,
The control means, on the condition that it is determined that the target facility is the midnight business facility,
Referring to the route data and the map data, the destination facility for boarding the final train based on the last train time at the nearest station of the destination facility and the required time from the destination facility to the nearest station To calculate the required departure time for
The navigation apparatus according to claim 5, wherein the notification process is executed a predetermined time before the essential departure time.

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