JP2012103274A - Route guidance device, route guidance method, route guidance program, and recording media - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely obtain a route in which a user can stop at a point through which the user wants to go.SOLUTION: In a route search apparatus 100, an input section 101 receives a designation of a user about a point to be booked through which the user wants to go (hereinafter called "through-booked point"). A memory section 102 stores information of the through-booked point. A confirmation section 103 confirms with the user whether or not the user sets the through-booked point as a destination or a stop over point, if the information of the through-booked point is stored in the memory section 102 when starting a route search operation. A search section 104 searches a route on which the through-booked point becomes the destination or the stop over point, if such the confirmation is made that the through-booked point is set as the destination or the stop over point.

Description

  The present invention relates to a route guidance device, a route guidance method, a route guidance program, and a recording medium that search for a route including a waypoint.

  2. Description of the Related Art Conventionally, when searching for a route to a destination point, there is known a technique for searching for a route including a waypoint by designating a point (route point) that stops during the route movement other than the destination point. For example, when setting a waypoint in route search, a technique is known in which the setting order is automatically rearranged and searched according to a specified condition, and the transit time of the waypoint can be specified (for example, (See Patent Document 1 below.)

JP 2001-82972 A

  However, in the above-described conventional technology, the waypoint can be specified only at the time of route search. For this reason, the problem that the user must remember the place which he / she wants to designate as a waypoint is found as an example. For example, if you find a feature that interests you while you are traveling to a destination point, and you want to stop by here, but you do not specify it when searching for a return route, Could not explore.

  In particular, if the travel time or travel distance is long, the user is more likely to forget that he / she has found an interesting feature or forget the location of the feature. In this case, it becomes difficult for the user to designate a feature that is of interest during a route search from the next time onward as a waypoint. Thus, the problem that the route according to the user's interest cannot be provided in the prior art is an example.

  In order to solve the above-described problems and achieve the object, the route guidance device according to the invention of claim 1 sets acquisition means for acquiring a registered predetermined point, and sets the predetermined point as a destination point or a stop point Confirmation means for confirming whether or not to the user, and guidance means for guiding a route having the predetermined point as the destination point or stop point when the predetermined point is set as the destination point or stop point; It is characterized by providing.

  The route guidance method according to the invention of claim 2 includes an acquisition step of acquiring a registered predetermined point, a confirmation step of confirming with the user whether or not to set the predetermined point as a destination point or a stop point, A guidance step of guiding a route having the predetermined point as the destination point or the stop point when the predetermined point is confirmed to be set as the destination point or the stop point.

According to a third aspect of the present invention, a route guidance program causes a computer to execute the route guidance method according to the second aspect.

  A recording medium according to a fourth aspect of the invention is characterized in that the route guidance program according to the third aspect is recorded in a computer-readable state.

It is a block diagram which shows the functional structure of the route search apparatus concerning embodiment. It is a flowchart which shows an example of the route search process by a route search apparatus. It is a block diagram which shows the hardware constitutions of the navigation apparatus concerning an Example. It is a flowchart which shows an example of a setting process of a via reservation point. It is explanatory drawing which shows an example of the display display at the time of setting of a via reservation point. It is a flowchart which shows an example of a route search process.

  With reference to the accompanying drawings, a route guidance device, a route guidance method, a route guidance program, and a recording medium according to the present invention will be described below with reference to a route searching device, a route searching method, a route searching program, and a recording medium. Will be described in detail.

(Embodiment)
(Functional configuration of route search apparatus 100)
First, the functional configuration of the route search apparatus 100 according to the embodiment will be described. FIG. 1 is a block diagram of a functional configuration of the route search apparatus according to the embodiment. The route search apparatus 100 includes an input unit 101, a storage unit 102, a confirmation unit 103, a search unit 104, a registration unit 105, and a guidance unit 106.

  The input unit 101 accepts designation of a point for making a route reservation (hereinafter referred to as “route reservation point”) from the user. For example, the input unit 101 displays the map information and allows the user to designate one point on the map information, or allows the user to input the address and name of the route reservation point, and accepts the designation of the route reservation point. For example, the input unit 101 receives designation of a route reservation point from the user when a route guidance to a predetermined point is performed by the guidance unit 106 described later. In addition, the input unit 101 may accept setting of a date or time zone (hereinafter referred to as “via desired date and time”) desired to be routed through the route reservation point as well as designation of the route reservation point.

  The storage unit 102 stores information on route reservation points. The information on the route reservation point is, for example, position information (latitude / longitude, address, etc.) or name of the route reservation point. When the desired via date / time is set together with the designation of the via reservation point, the storage unit 102 stores information of the via reservation point and the desired via date / time. In addition, when a route reservation point is specified during guidance by the guidance unit 106 described later, the storage unit 102 stores information on the departure point of the route being guided together with information on the route reservation point. Further, the storage unit 102 may delete the information on the route reservation point when a route having the route reservation point as the destination point or the route point is searched by the search unit 104 described later.

  When the route reservation start information is stored in the storage unit 102 when the route search is started, the confirmation unit 103 confirms with the user whether or not to set the route reservation point as the destination point or the stop point. For example, the confirmation unit 103 displays a message on the touch panel for prompting the user to select whether or not to set the route reservation point as a destination point or a stop point, and a button for inputting the selection result. Further, when the route search start date or time corresponds to the desired route date and time, the confirmation unit 103 determines whether or not the route reservation point where the desired route date and time is set is set as the destination point or the stop point. Check with.

In addition, the confirmation unit 103 searches for a route using the predetermined point as a departure point in a route search after arriving at the predetermined point when a route reservation point is specified during guidance to a predetermined point by the guidance unit 106 described later. In addition, it may be confirmed with the user whether or not the via reservation point is set as a destination point or a stop point. In addition, the confirmation unit 103 sets the route reservation point as the destination point or the stop point when information on the route reservation point is stored in the storage unit 102 when starting the route search after arriving at the predetermined point. It is good also as confirming with a user. Further, when the departure unit stored in the storage unit 102 is set as the destination point in the route search after arriving at the predetermined point, the confirmation unit 103 determines whether or not to set the route reservation point as the stop point. It may be confirmed with the user.

  When it is confirmed that the route reservation point is set as the destination point or the stop point, the search unit 104 searches for a route having the route reservation point as the destination point or the stop point. In addition, when there is no route reservation point, or when it is determined that the route reservation point is not set as the destination point or the stop point, the search unit 104 sets the route specified by the user as the destination point or the route point. Search (normal route search).

  The registration unit 105 registers a specific point. Here, the specific point is a place that should be handled separately from other points for the user, such as a home, a villa, a workplace, or a home. For example, the registration unit 105 displays the map information and allows the user to specify one point on the map information, or allows the user to input the address or name of the specific point, and specifies the specific point. Remember.

  When the specific point is registered in the registration unit 105, the confirmation unit 103 stores the information on the reserved reservation point in the storage unit 102 when starting the route search, and sets the specific point as the destination point in the route search. In such a case, the user is confirmed whether or not the via reservation point is set as a stop point.

  The guiding unit 106 guides a route to a predetermined point. For example, the guiding unit 106 displays the current position of the user and the route to the predetermined point and the traveling direction on the map information, and guides the route by outputting a voice of the traveling direction and cautions on road traffic.

(Route search processing by the route search device 100)
Next, route search processing by the route search device 100 will be described. FIG. 2 is a flowchart illustrating an example of route search processing by the route search device. The flowchart of FIG. 2 is a process in the case where a specific point is not registered in the registration unit 105 and a desired route date / time is not set for each route reservation point.

  First, the route search device 100 accepts designation of a route reservation point by the input unit 101 (step S201), and stores information of the route reservation point in the storage unit 102 (step S202). Until the search unit 104 is instructed to start a route search (step S203: No), the process returns to step S201, and the subsequent processing is repeated.

  When the search unit 104 is instructed to start a route search (step S203: Yes), the route search device 100 determines whether or not the information on the route reservation point is stored in the storage unit 102 (step S204). When the information on the reserved route point is stored (step S204: Yes), the confirmation unit 103 determines whether the reserved route point is set as a destination point or a route point (hereinafter referred to as “destination point etc.”). Confirmation (step S205).

  When setting a route reservation point as a destination point or the like (step S205: Yes), the search unit 104 searches for a route using the route reservation point as a destination point or the like (step S206), and ends the processing according to this flowchart. On the other hand, when the information on the reserved route point is not stored in the storage unit 102 (step S204: No), or when the reserved route point is not set as the destination point (step S205: No), the point designated by the user A normal route search is performed using as a destination point and a waypoint (step S207), and the processing according to this flowchart ends.

As described above, the route search device 100 according to the embodiment stores information on a reserved route point, and searches for a route having the reserved route point as a destination point or the like when searching for a route. For this reason, even if the user does not remember the place he / she wishes to designate as a route point at the time of route search, the user can obtain a route to stop by the route point. In addition, the route search device 100 confirms with the user whether or not to set the route reservation point as the destination point. For this reason, the user can obtain an appropriate route according to the situation at the time of route search.

  Further, the route search apparatus 100 accepts designation of a route reservation point during route guidance to a predetermined point, and searches for a route having the route reservation point as a destination point or the like when starting a route search after arriving at the predetermined point. . For this reason, for example, when a feature that attracts interest is found on the outbound route to a predetermined point, it is possible to search for a route that reliably stops on the feature on the return route.

  In the route search device 100, a desired route date / time can be set at a route reservation point. For this reason, the user can obtain a route having the route reservation point as the destination point or the like at an appropriate timing. In addition, the route search device 100 deletes the information on the route reservation point where the route is searched. Therefore, the storage area can be used effectively without continuing to accumulate unnecessary data.

  Examples of the present invention will be described below. In the present embodiment, an example in which the route search device of the present invention is implemented by a navigation device mounted on a moving body such as a vehicle (including a four-wheeled vehicle and a two-wheeled vehicle) will be described.

(Hardware configuration of navigation device)
First, the hardware configuration of the navigation device 300 according to the embodiment will be described. FIG. 3 is a block diagram illustrating a hardware configuration of the navigation device according to the embodiment. In FIG. 3, the navigation device 300 includes a CPU 301, a ROM 302, a RAM 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, an audio I / F (interface) 308, and a microphone 309. A speaker 310, an input device 311, a video I / F 312, a display 313, a communication I / F 314, a GPS unit 315, various sensors 316, and a camera 317. Each component 301 to 317 is connected by a bus 320.

  First, the CPU 301 governs overall control of the navigation device 300. The ROM 302 records programs such as a boot program and a data update program. The RAM 303 is used as a work area for the CPU 301. That is, the CPU 301 controls the entire navigation device 300 by executing various programs recorded in the ROM 302 while using the RAM 303 as a work area.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls reading / writing of data with respect to the optical disk 307 according to the control of the CPU 301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. As a removable recording medium, in addition to the optical disk 307, an MO, a memory card, or the like may be used.

Examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data and function data. The map data includes background data that represents features (features) such as buildings, rivers, and the ground surface, and road shape data that represents the shape of the road, and is composed of multiple data files divided by district. ing.

  The road shape data further includes traffic condition data. The traffic condition data includes, for example, whether or not there is a signal or a pedestrian crossing, whether or not there is a highway doorway or junction, the length (distance) of each link, road width, direction of travel, road type (highway, Such as toll roads and general roads).

  The function data is three-dimensional data representing the shape of the facility on the map, character data representing the description of the facility, and other various data other than the map data. Map data and function data are recorded in blocks divided by district or function. Specifically, for example, the map data is recorded in a state where each block can be divided into blocks such that each represents a predetermined district on the map displayed on the display screen. Further, for example, the function data is recorded in a state where each function can be divided into a plurality of blocks so as to realize one function.

  The function data is data for realizing functions such as program data for realizing route search, calculation of required time, route guidance, etc. in addition to the above-described three-dimensional data and character data. Each of the map data and the function data is composed of a plurality of data files divided for each district or each function.

  The audio I / F 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. For example, the microphone 309 may be installed near the sun visor of the vehicle, and the number thereof may be one or more. From the speaker 310, a sound obtained by D / A converting a predetermined sound signal in the sound I / F 308 is output.

  Examples of the input device 311 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, and the like, a keyboard, and a touch panel. The input device 311 may be realized by any one form of a remote control, a keyboard, and a touch panel, but can also be realized by a plurality of forms.

  The video I / F 312 is connected to the display 313. Specifically, the video I / F 312 is output from, for example, a graphic controller that controls the entire display 313, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. And a control IC for controlling the display 313 based on the image data to be processed.

  The display 313 displays icons, cursors, menus, windows, or various data such as characters and images. On the display 313, the map data described above is drawn two-dimensionally or three-dimensionally. The map data displayed on the display 313 can be displayed with a mark representing the current position of the vehicle on which the navigation device 300 is mounted. The current position of the vehicle is calculated by the CPU 301.

  As the display 313, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be used. The display 313 is installed near the dashboard of the vehicle, for example. A plurality of displays 313 may be installed in the vehicle, for example, in the vicinity of the dashboard of the vehicle or in the vicinity of the rear seat of the vehicle.

  The communication I / F 314 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 314 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 301.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 314 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a radio navigation device, and other navigation devices. Get road traffic information. VICS is a registered trademark. The communication I / F 314 is configured by an in-vehicle wireless device that performs two-way wireless communication with a wireless device installed on the roadside, for example, when using DSRC (Dedicated Short Range Communication), and traffic information and map information Get various information. A specific example of DSRC is ETC (non-stop automatic fee payment system).

  The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current position of the vehicle. The output information of the GPS unit 315 is used when the CPU 301 calculates the current position of the vehicle together with output values of various sensors 316 described later. The information indicating the current position is information for specifying one point on the map data, such as latitude / longitude and altitude.

  The various sensors 316 output information for determining the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor. The output values of the various sensors 316 are used for the calculation of the current position of the vehicle by the CPU 301 and the amount of change in speed and direction.

  The camera 317 captures images inside or outside the vehicle. The image may be either a still image or a moving image. For example, the behavior of the passenger inside the vehicle is photographed by the camera 317, and the photographed image is output to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. To do. The camera 317 captures a situation outside the vehicle, and outputs the captured video to a recording medium such as the magnetic disk 305 or the optical disk 307 via the video I / F 312. Further, the camera 317 has an infrared camera function, and the surface temperature distributions of objects existing inside the vehicle can be relatively compared based on video information captured using the infrared camera function. The video output to the recording medium is overwritten and stored.

  The input unit 101, the storage unit 102, the confirmation unit 103, the search unit 104, the registration unit 105, and the guidance unit 106 of the route search device 100 illustrated in FIG. 1 are the ROM 302, the RAM 303, and the magnetic disk in the navigation device 300 illustrated in FIG. The CPU 301 executes a predetermined program using programs and data recorded on the optical disk 307 and the like 305, and realizes the function by controlling each unit in the navigation device 300.

  That is, the navigation device 300 according to the embodiment shows the functions of the route search device shown in FIG. 1 by executing the route search program recorded in the ROM 302 as a recording medium in the navigation device 300, as shown in FIG. It can be executed by the route search processing procedure.

(Route search process by the navigation device 300)
Next, route search processing by the navigation device 300 will be described. The navigation device 300 accepts the setting of a point (route reservation point) to be set as a destination point or a route point at the next or subsequent route search from the user. For example, when a user finds a feature that interests him / her while traveling from his / her home to a destination point and thinks “I want to drop in here on the way home”, the feature is set as a reserved reservation point. The route reservation point may be set during traveling or while stopped.

  Then, when searching for a route after the next time, specifically, for example, when searching for a return route to home, the navigation device 300 presents the route reservation point to the user and selects whether to search for a route to stop at the route reservation point. Let When it is selected to search for a route that stops at the route reservation point, the navigation device 300 searches for a route having the route reservation point as a destination point or a route point. Thereby, even if the user has forgotten the way reservation point when searching for the return route, the user can obtain a route to stop by the way reservation point.

  FIG. 4 is a flowchart illustrating an example of a process for setting a route reservation point. In FIG. 4, a case will be described in which one place in the map data displayed on the display 313 is designated and a route reservation point is set. In FIG. 4, the navigation apparatus 300 displays map data on the display 313 (step S401), and waits until one point on the displayed map data is designated (step S402: No loop). When one point on the map data is designated (step S402: Yes), it is determined whether or not the designated point is set as a route reservation point (step S403).

  FIG. 5 is an explanatory diagram illustrating an example of a display displayed when setting a route reservation point. On the display 313, map data MP is displayed. The user moves the cursor 501 on the display 313 with a remote controller or the like, moves the cursor 501 to a point to be set as a via reservation point, and presses a predetermined button on the remote controller in that state, thereby designating one point in the map data. .

  When one point on the map data is designated by the user, the navigation apparatus 300 displays a message display 502 for determining whether or not to set the designated point as a route reservation point, as shown in FIG. When the user presses the “Yes” button, the navigation apparatus 300 determines that the designated point is set as the reservation point for the route (in the case of Yes in step S403), and the “No” button is pressed. In step S403, it is determined that the designated point is not set as the route reservation point, and the process returns to step S401 and the subsequent processing is repeated (in the case of No in step S403).

  Returning to the description of FIG. 4, when it is determined that the designated point is set as the route reservation point (step S <b> 403: Yes), the navigation apparatus 300 has reached the maximum number of reservations (the maximum number of reservations) at the route reservation point. It is determined whether or not (step S404). The maximum number of reservations is the maximum number of via reservation points stored in the navigation device 300. Specifically, the information on the route reservation point is recorded in the route reservation point database, but an upper limit is set on the number of route reservation points that can be registered in the route reservation point database, and the upper limit is set as the maximum number of reservations.

  If the maximum number of reservations has been reached (step S404: Yes), the navigation device 300 displays an error message to that effect to the user (step S405), and ends the processing according to this flowchart. The user who received the error display deletes unnecessary via reservation points, for example, makes reservations for via points again after making the number of via reservation points less than the maximum number of reservations. Note that a designated point without necessarily setting the maximum number of reservations may be set as a route reservation point.

On the other hand, when the maximum number of reservations has not been reached (step S404: No), the navigation apparatus 300 determines whether or not to set a route reservation date and time at the specified route reservation point (step S406). The via reservation date and time is the date and time zone in which the user wishes to go to the via reservation point. As the relay reservation date and time, for example, a specific date such as “December 24 from 18:00 to 21:00”, a day of the week such as “Weekday” or “Sunday”, “8 to 10 o'clock or 17:00 to 20:00” You can specify the time zone. Whether or not to set the via reservation date and time is determined by, for example, displaying “Yes” and “No” buttons on the display 313 together with a message such as “Do you want to set the via reservation date?” Is based on which button is pressed.

  When setting the route reservation date and time (step S406: Yes), the user sets the route reservation date and time (step S407). The setting of the via reservation date and time is performed, for example, by allowing the user to input the via reservation date and time using the input device 311. If the via reservation date is not set (step S406: No), the process proceeds to step S408.

  And the navigation apparatus 300 memorize | stores the designated point as a via reservation point (step S408), and complete | finishes the process of this flowchart. For example, the navigation device 300 creates a route reservation point database in the magnetic disk 305 or the optical disk 307 and writes data such as the latitude / longitude, address, and name of the route reservation point. In addition, when the route reservation date and time is set in step S407, the information on the route reservation date and time is written in the route reservation point database together with the information on the route reservation point.

  The navigation apparatus 300 sets a route reservation point by the procedure as described above.

  Next, route search processing of the navigation device 300 will be described. FIG. 6 is a flowchart illustrating an example of route search processing. The navigation device 300 stands by until a route search is instructed (step S601: No loop). When a route search is instructed (step S601: Yes), the navigation apparatus 300 determines whether or not a route reservation point is set (step S602). Specifically, the navigation device 300 determines whether or not the information on the route reservation point is recorded in the route reservation point database.

  If a route reservation point is set (step S602: Yes), it is determined whether or not the route reservation point is set as a destination point or a route point (a destination point or the like) (step S603). For example, "Yes" is displayed along with a message such as "A route reservation point is set. Do you want to set as a destination point or a route point?" A button and a “NO” button are displayed on the display 313, and this is performed based on which button the user has pressed.

  When setting a via reservation point as a destination point or the like (step S603: Yes), it is determined whether or not a via reservation date is set for the via reservation point by referring to the via reservation point database (step S604). When the via reservation date and time is set in the via reservation point (step S604: Yes), the via reservation point whose current date and time match the via reservation date is extracted (step S605), and the via reservation point is presented to the user. (Step S606). Further, when the via reservation date is not set for the transit reservation point (step S604: No), the process proceeds to step S606 as it is, and all the transit reservation points in the transit reservation point database are presented.

The navigation device 300 waits until a route reservation point that the user wishes to visit is selected from the route reservation points presented (step S607: No loop), and when a route reservation point is selected (step S607: Yes). ), And searches for a route using the selected via reservation point as the destination point (step S608). In step S607, the user may select a plurality of route reservation points. In this case, the navigation device 300 searches for a route that stops at each of the selected plurality of route reservation points.

  And the navigation apparatus 300 deletes the information of the via reservation point selected this time from the via reservation point database (step S609), and complete | finishes the process by this flowchart. As in step S609, the route reservation point information may not be deleted when the route search is executed, but may be stored in the route reservation point database as it is. In addition, the information of the route reservation point database is deleted when the route reservation date and time is set for the route reservation point, and the route reservation date is not set for the route reservation point. May be automatically deleted after a predetermined time has elapsed since it was registered in the route reservation point database.

  In addition, when the route reservation point is not set in step S602 (step S602: No), or when the route reservation point is not set as the destination point or the like in step S603 (step S603: No), the navigation device 300 is used by the user. A route with the designated point as the destination point or the like is searched (step S610), and the process according to this flowchart ends.

  Through the processing as described above, the navigation device 300 searches for a route having the route reservation point as the destination point.

  Such a route search process is always executed when a route search is performed, and may be performed only when a specific point is designated as a destination point, for example. The specific point is a place that should be handled separately from other points for the user, such as a home, a villa, a workplace, or a home. The navigation device 300 has a specific point registration function. The name and position information of the point designated as the specific point are stored in the registered point database. The navigation device 300 may perform route search processing as shown in FIG. 6 when a specific point is designated as a destination point in route search.

  Further, when a route point reservation is made while guiding a route to a predetermined point, the navigation device 300 performs route search processing as shown in FIG. 6 when a route search is instructed after arriving at the predetermined point. It is good as well. Specifically, for example, when searching for a route using a predetermined point as a departure point, the user is caused to determine whether or not the route reservation point reserved in the route to the predetermined point is set as a destination point. In addition, when a waypoint is booked while a route to a predetermined point is being guided, information on the departure point of the route is also stored in the route reservation point database, and a route search can be performed using that departure point as a destination point. When this is done (that is, when a return route is searched), the user may be allowed to determine whether or not the route reservation point reserved in the route to go is set as a destination point or the like.

  As described above, the navigation device 300 stores information on the route reservation point, and searches for a route having the route reservation point as a destination point or the like at the time of route search. For this reason, even if the user does not remember the place he / she wishes to designate as a route point at the time of route search, the user can obtain a route to stop by the route point. In addition, the navigation device 300 confirms with the user whether or not to set the route reservation point as the destination point. For this reason, the user can obtain an appropriate route according to the situation at the time of route search.

Further, the navigation device 300 accepts designation of a route reservation point during route guidance to a predetermined point, and searches for a route having the route reservation point as a destination point or the like when starting a route search after arriving at the predetermined point. For this reason, for example, when a feature that attracts interest is found on the outbound route to a predetermined point, it is possible to search for a route that reliably stops on the feature on the return route.

  Further, the navigation device 300 can set a desired route date and time at a route reservation point. For this reason, the user can obtain a route having the route reservation point as the destination point or the like at an appropriate timing. In addition, the navigation device 300 deletes the information on the route reservation point where the route is searched. Therefore, the storage area can be used effectively without continuing to accumulate unnecessary data.

  The route search method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

DESCRIPTION OF SYMBOLS 100 Route search apparatus 101 Input part 102 Storage part 103 Confirmation part 104 Search part 105 Registration part 106 Guidance part

Claims (4)

An acquisition means for acquiring a registered predetermined point;
Confirmation means for confirming to the user whether or not to set the predetermined point as a destination point or a stop point;
Guidance means for guiding a route having the predetermined point as the destination point or stop point when confirmation is made that the predetermined point is set as the destination point or stop point;
A route guidance device comprising: An acquisition step of acquiring a registered predetermined point;
A confirmation step of confirming to the user whether or not to set the predetermined point as a destination point or a stop point;
A guidance step for guiding a route having the predetermined point as the destination point or stop point when confirmation is made that the predetermined point is set as the destination point or stop point; and
A route guidance method comprising:   A route guidance program for causing a computer to execute the route guidance method according to claim 2.   A computer-readable recording medium on which the route guidance program according to claim 3 is recorded.

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