JP2018045708A - Navigation device, control method, program and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device capable of preferably presenting a destination candidate in accordance with a registered schedule.SOLUTION: The navigation device comprises acquisition means, storage means and control means. The acquisition means acquires information on the registered schedule. The storage means stores a keyword included in information on a previously acquired schedule and a destination set correspondingly to the schedule in association with each other. The control means causes display means to display the destination stored in association with the keyword as a current destination candidate, when the keyword included in the information on the schedule currently acquired by the acquisition means is stored in the storage means. The control means further causes the storage means to store the keyword included in the information on the currently acquired schedule in addition to the keyword associated with the destination, when the current destination is set from among the destination candidates.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a technique for setting a destination for route guidance.

  Conventionally, a technique for setting a destination based on schedule information stored in a mobile terminal or the like is known. For example, Patent Document 1 stores a database in which keywords representing position information and position information are associated with each other, and position information obtained by referring to the above-described database based on the keywords input when the schedule is registered. Is a schedule management device that sets a position indicated by as a destination for executing the schedule. Patent Document 2 discloses a method for extracting proper nouns from character strings by morphological analysis.

JP 2005-228020 A JP 2002-183133 A

  In Patent Document 1, it is necessary to associate a keyword for registration in a database with position information based on a user input. Furthermore, in patent document 1, in order to set a destination correctly, it was necessary to register a schedule using the keyword registered in the database.

  The present invention has been made to solve the above-described problems, and mainly provides a navigation device capable of suitably presenting destination candidates according to a registered schedule. Objective.

  The invention described in the claims is a navigation device, an acquisition means for acquiring information related to a registered schedule, a keyword included in information related to a schedule acquired in the past, and an object set corresponding to the schedule In the case where a keyword included in the information related to the schedule acquired this time by the acquisition unit is stored in the storage unit, a storage unit that stores the location in association with the destination, and a destination stored in association with the keyword, Control means for causing the display means to display the current destination candidate as the current destination candidate, and when the current destination is set from among the destination candidates, the control means includes information on the schedule acquired this time. Keywords included in the keyword associated with the destination stored in the storage means Characterized in that to add to storage.

  Further, the claimed invention is a navigation device, an acquisition means for acquiring information related to a registered schedule, a keyword included in information related to a schedule acquired in the past, a start date and time of the schedule, and the schedule Storage means for associating and storing a destination set in correspondence with the information, and a keyword included in the information related to the schedule acquired this time by the acquisition means, or information relating to either the start date and time of the schedule is stored in the storage means Control means for causing the display means to display the destination stored in association with the keyword or the start date and time as a current destination candidate when stored, the control means including the destination candidate If the current destination is set from among the above, Keywords included in information about the schedule, and the start date and time of the schedule, adding to be stored in the information associated with the destination stored in the storage means.

  The invention described in the claims is a control method executed by a navigation device having a storage unit that stores a keyword included in information on a schedule acquired in the past and a destination set in correspondence with the schedule. When the keyword included in the information relating to the schedule acquired at this time acquired by the acquisition step is stored in the storage means, the information is stored in association with the keyword. And a control step of displaying the destination being displayed on the display means as a current destination candidate, and when the current destination is set from the destination candidates, The keyword included in the information related to the schedule acquired this time is stored in the storage means. Characterized in that to store in addition to keywords associated with.

  The invention described in the claims is a program executed by a computer that controls a storage unit that stores a keyword included in information on a schedule acquired in the past and a destination set in correspondence with the schedule. When the keyword included in the information related to the schedule acquired this time by the acquisition means and the storage means stored in the storage means is stored in association with the keyword. Causing the computer to function as a control unit that causes a display unit to display a destination as a current destination candidate, and when the current destination is set from the destination candidates, the control unit The keyword included in the information about the schedule acquired this time is stored in the storage means. Add stored in the keyword associated with the destination is stored.

1 shows a schematic configuration of a navigation system. 1 shows a schematic configuration of a mobile terminal. An example of the data structure of schedule information is shown. 1 shows a schematic configuration of a navigation device. An example of the data structure of destination log | history information is shown. The flowchart which a navigation apparatus performs is shown. The example of a display of the input screen which concerns on a modification is shown. The structural example of the navigation system which concerns on a modification is shown. The structural example of the navigation system which concerns on a modification is shown.

  According to a preferred embodiment of the present invention, the navigation device is set corresponding to the acquisition means for acquiring information related to the registered schedule, the keyword included in the information related to the schedule acquired in the past, and the schedule. When the storage unit stores the destination in association with the keyword and the keyword included in the information on the schedule acquired by the acquisition unit is stored in the storage unit, the destination stored in association with the keyword is stored. Control means for causing the display means to display the current destination candidate as the current destination candidate, and the control means, when the current destination is set from the destination candidates, the information about the schedule acquired this time A keyword associated with the destination stored in the storage means To add to the soil to be stored.

  The navigation device includes an acquisition unit, a storage unit, and a control unit. The acquisition unit acquires information related to the registered schedule. The storage means stores the keyword included in the information related to the schedule acquired in the past in association with the destination set corresponding to the schedule. When the keyword included in the information related to the schedule acquired this time by the acquisition means is stored in the storage means, the control means displays the destination stored in association with the keyword as the current destination candidate. To display. In addition, when the current destination is set from among the destination candidates, the control unit displays the keyword included in the information about the schedule acquired this time as a keyword associated with the destination stored in the storage unit. Add to and remember.

  According to this aspect, the navigation device can appropriately extract and display the current destination candidate from the destinations set corresponding to the past schedule based on the keywords included in the information related to the schedule. Further, when the destination is set, the navigation device stores the keyword included in the information related to the schedule acquired this time in addition to the keyword associated with the destination, thereby storing the keyword in the storage unit. The association between the keyword and the destination can be suitably executed.

  In one aspect of the navigation device, the control unit may determine whether the keyword included in the information related to the schedule acquired this time by the acquiring unit is not recorded in the storage unit, or the current destination from the destination candidates. If the location is not set, an image prompting the user to input the destination is displayed on the display means. According to this aspect, the navigation apparatus can set a destination flexibly based on a user operation.

  In another aspect of the navigation device, the control unit includes a keyword included in information on the schedule acquired this time when the current destination is input based on an image that prompts input of the destination, The current destination is associated and stored in the storage means. According to this aspect, the navigation device can suitably execute the association between the keyword stored in the storage unit and the destination.

  In another aspect of the navigation device, the control unit extracts a noun as a keyword from character strings included in the information related to the schedule acquired by the acquisition unit, and the storage unit uses the noun as a keyword. Remember. According to this aspect, the navigation device can preferably extract the keyword from the information related to the schedule and store it in the storage means.

  In another preferred embodiment of the present invention, the navigation device includes an acquisition unit that acquires information related to a registered schedule, a keyword included in information related to a schedule acquired in the past, a date and time of the schedule, and the schedule. The storage unit stores information associated with the destination set in association with the keyword, the keyword included in the information related to the schedule acquired this time by the acquisition unit, or the date and time of the schedule. Control means for causing the display means to display the destination stored in association with the keyword or the date and time as a destination candidate for this time, and the control means includes the destination candidate from among the destination candidates When this destination is set, the schedule acquired this time Keywords included in information about, and the date and time of the schedule, adding to be stored in the information associated with the destination stored in the storage means.

  According to this aspect, the navigation device preferably extracts and displays the current destination candidate from the destinations set corresponding to the past schedule based on the keywords included in the information related to the schedule or the date and time of the schedule. be able to. Further, when the destination is set, the navigation device stores the keyword included in the information related to the schedule acquired this time and the date and time of the schedule in addition to the keyword associated with the destination, It is possible to suitably execute the association between the keyword and date / time stored in the storage means and the destination.

  In one aspect of the navigation device, the control means includes a keyword included in the information related to the schedule acquired this time and the start date / time or end date / time of the schedule, and the keyword and start date / time or end date / time stored in the recording means. Are displayed on the display means as current destination candidates. According to this aspect, the navigation apparatus can suitably select a destination as a destination candidate.

  In another aspect of the navigation device, the control means is based on at least one of a date, a day of the week, and a time between the date and time of the schedule acquired this time and the date and time stored in the recording means. The degree of coincidence is calculated. According to this aspect, the navigation device can suitably select a destination as a destination candidate based on the day of the week and time indicated by the date and time of the schedule.

  In another aspect of the navigation apparatus, there are a plurality of keywords included in the information related to the schedule acquired this time by the acquisition means, and the control means includes the keywords included in the information related to the schedule acquired this time, Keywords other than those already associated with the current destination are added to the keywords already associated with the current destination and stored in the storage means. According to this aspect, the navigation device can suitably execute the association between the keyword stored in the storage unit and the destination.

  According to another embodiment of the present invention, a control executed by a navigation device having a storage unit that stores a keyword included in information on a schedule acquired in the past and a destination set corresponding to the schedule in association with each other. The method includes an acquisition step of acquiring information related to a registered schedule, and a keyword included in information related to the schedule acquired this time by the acquisition step is stored in association with the keyword when stored in the storage unit. And a control step of displaying the current destination on the display means as a current destination candidate, and the control step includes the current time when the current destination is set from the destination candidates. The keyword included in the information related to the acquired schedule is stored in the destination stored in the storage means. Add to the continuous Tagged keyword is stored. By executing this control method, the navigation device can suitably display the current destination candidate based on the keyword included in the information related to the schedule, and associate the keyword stored in the storage unit with the destination. Can be suitably executed.

  According to another embodiment of the present invention, a program executed by a computer that controls a storage unit that stores a keyword included in information on a schedule acquired in the past and a destination set in correspondence with the schedule. Is stored in association with the keyword if the keyword included in the information related to the schedule acquired this time by the acquisition means and the storage means stored in the storage means is acquired. Causing the computer to function as a control unit that causes the display unit to display a current destination as a current destination candidate, and the control unit performs the current time when the current destination is set from the destination candidates. A keyword included in the acquired schedule information is stored in the storage means. Add the keywords associated with the destination that is to be stored. By executing this program, the computer can suitably display the current destination candidate based on the keyword included in the information related to the schedule, and preferably associates the keyword stored in the storage unit with the destination. Can be executed. Preferably, the program is stored in a storage medium.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[overall structure]
FIG. 1 shows a schematic configuration of a navigation system 1 according to the present embodiment. The navigation system 1 includes a portable terminal 100 such as a smartphone that can be carried by a user, and a navigation device 200 that guides a route of the vehicle. The navigation device 200 corresponds to a schedule registered in the portable terminal 100 by the user. Search for destination candidates. The portable terminal 100 and the navigation device 200 are electrically connected by wireless or wired communication to perform necessary data communication. As will be described later, the navigation device 200 receives information (also referred to as “schedule information Ia”) related to a schedule registered in advance in the mobile terminal 100 by the user from the mobile terminal 100.

[Configuration of mobile terminal]
FIG. 2 shows a schematic configuration of the mobile terminal 100. As illustrated in FIG. 2, the mobile terminal 100 includes an output unit 11, an input unit 12, a storage unit 13, a communication unit 14, a GPS receiver 15, and a control unit 16. Each element of the portable terminal 100 is connected to each other via the bus 10 and is configured so that necessary information can be transmitted between the elements.

  The output unit 11 includes a display 110 that displays an image, a speaker 111 that outputs sound, and the like, and outputs information for responding to the operation of the user of the mobile terminal 100 based on the control of the control unit 16. The input unit 12 is an interface that includes the touch panel 120 and receives input of necessary commands and information that a user performs on the mobile terminal 100. For example, the input unit 12 receives an input for specifying a destination, an input for specifying a route search condition, and the like. The input unit 12 receives an input necessary for registration of a schedule. In addition to the touch panel 120, the input unit 12 may include keys, switches, buttons, voice input devices, and the like for inputting various commands and data.

  The storage unit 13 stores a program for controlling the operation of the mobile terminal 100 and holds information necessary for the operation of the mobile terminal 100. The storage unit 13 stores schedule information Ia. Here, the schedule information Ia is information in which date / time information indicating a date, a time zone, and the like is associated with each scheduled content to be executed.

  FIG. 3 shows an example of the data structure of the schedule information Ia. The schedule information Ia shown in FIG. 3 is a database having an item “date”, an item “schedule content”, and an item “time zone”. The schedule information Ia stored in the storage unit 13 may be generated based on an input to the input unit 12 or may be received from another device via the communication unit 14.

  With reference to FIG. 2 again, the components of the mobile terminal 100 will be described. The communication unit 14 transmits / receives data to / from other devices according to a predetermined protocol. For example, the communication unit 14 transmits schedule information Ia to the navigation device 200 in response to a request from the navigation device 200 based on the control of the control unit 16. The GPS receiver 15 receives radio waves carrying downlink data including positioning data from a plurality of GPS satellites, thereby generating information on the current position of the mobile terminal 100 and transmitting the information to the control unit 16.

  The control unit 16 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like (not shown), and performs various controls on each component in the mobile terminal 100.

[Configuration of navigation device]
FIG. 3 shows a schematic configuration of the navigation device 200. The navigation device 1 is, for example, a stationary or portable navigation device. As shown in FIG. 3, the navigation device 1 is a self-supporting positioning device 5, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, and a communication device. An interface 37, a communication device 38, a display unit 40, an audio output unit 50, and an input device 60 are provided.

  The autonomous positioning device 5 includes an acceleration sensor 6, an angular velocity sensor 7, and a distance sensor 8. The acceleration sensor 6 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data. The angular velocity sensor 7 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative bearing data. The distance sensor 8 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.

  The GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites. The positioning data is used to detect the absolute position of the vehicle from latitude and longitude information.

  The system controller 20 includes an interface 21, a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23, and a RAM (Random Access Memory) 24. By executing a control program stored in the ROM 23 or the like, The entire navigation device 1 is controlled.

  The interface 21 performs an interface operation with the acceleration sensor 6, the angular velocity sensor 7, the distance sensor 8, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20. The CPU 22 controls the entire system controller 20. The ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored. The RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.

  A system controller 20, a disk drive 31 such as a CD-ROM drive or a DVD-ROM drive, a data storage unit 36, a communication interface 37, a display unit 40, an audio output unit 50, and an input device 60 are mutually connected via a bus line 30. It is connected to the.

  The disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20. The disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive.

  The data storage unit 36 is configured by, for example, an HDD and stores various data used for navigation processing such as map data. The map data includes road data represented by links corresponding to roads and nodes corresponding to road connecting portions (intersections), facility information about each facility, and the like.

  Further, the data storage unit 36 stores information (also referred to as “destination history information Ib”) in which related keywords and date / time information are associated with facilities and points set as destinations in the past. The destination history information Ib is generated by the system controller 20 and is updated every time a destination is set, as will be described later.

  FIG. 5 is an example of the data structure of the destination history information Ib. The destination history information Ib shown in FIG. 5 includes a “destination” item indicating a facility name or a spot name set as a destination in the past, one or more “keyword” items, and one or more “ A database having an item of “date and time of past schedule”. As described later, the keyword in the destination history information Ib and the start date and time of the past schedule are set based on the schedule information Ia used when setting the destination. In the initial state, the data storage unit 36 stores destination history information Ib in which one or a plurality of keywords related to the facility or the like are associated with the facility or the like that may be set as the destination. It may be stored in advance. Thereby, even in the initial state, the navigation device 200 suitably executes the processing of the flowchart shown in FIG. The data storage unit 36 stores latitude / longitude information indicating the position of each destination in addition to or instead of storing the facility name in the “destination” item of the destination history information Ib. May be.

  With reference to FIG. 4 again, each component of the navigation apparatus 200 will be described. The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and via a communication interface 37, traffic jams distributed from a VICS (registered trademark, Vehicle Information Communication System) center Receive road traffic information such as traffic information and other information.

  The display unit 40 displays various display data on a display device such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map data from the data storage unit 36. The display unit 40 displays the map data read from the data storage unit 36 by the system controller 20 on the display screen. The display unit 40 includes a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 via the bus line 30 and a memory such as a VRAM (Video RAM), and can display image information that can be displayed immediately. A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal display or a CRT (Cathode Ray Tube) based on image data output from the graphic controller 41, and a display 44 are provided. . The display 44 functions as an image display unit, and includes, for example, a liquid crystal display device having a diagonal size of about 5 to 10 inches and is mounted near the front panel in the vehicle.

  The audio output unit 50 performs D / A (Digital to Analog) conversion of audio digital data sent from the CD-ROM drive 31, DVD-ROM 32, RAM 24, or the like via the bus line 30 under the control of the system controller 20. A D / A converter 51 to perform, an amplifier (AMP) 52 that amplifies the audio analog signal output from the D / A converter 51, and a speaker 53 that converts the amplified audio analog signal into sound and outputs the sound into the vehicle. It is prepared for.

  The input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data. The input device 60 is disposed around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle. When the display 44 is a touch panel system, the touch panel provided on the display screen of the display 44 also functions as the input device 60.

  The system controller 20 is an example of “acquisition unit”, “control unit”, and “computer” in the present invention. The data storage unit 36 is an example of the “storage unit” in the present invention.

[Processing flow]
FIG. 6 shows a flowchart of processing executed when the navigation device 200 sets a destination. The navigation device 200 executes the processing of the flowchart shown in FIG. 6 when, for example, communication is established with the mobile terminal 100 or when there is an input to the input unit 12 instructing execution of the flowchart.

  First, the navigation device 200 acquires schedule information Ia from the mobile terminal 100 (step S100). In this case, the navigation device 200 receives the schedule information Ia from the portable terminal 100 by wire or wireless.

  Next, the navigation device 200 extracts the keyword and the start date / time from the schedule information Ia acquired in step S100 (step S101). For example, when the schedule information Ia shown in FIG. 3 is acquired, the navigation device 200 extracts nouns such as common nouns and proper nouns from the “planned contents” item based on the conventional technology using morphological analysis and the like. Recognize nouns as keywords. Also, the navigation device 200 refers to the “date” item and the “time zone” item corresponding to the “scheduled content” item from which the keyword is extracted, and recognizes the start date and time for executing the scheduled content. Hereinafter, the keyword extracted in step S101 is simply referred to as “keyword Ktag”, and the start date and time extracted in step S101 is also simply referred to as “start date and time Ttag”.

  In step S101, the navigation apparatus 200 preferably sets the target for extracting the keyword or the like in the record of the schedule information Ia whose start date and time is after the current date and time and closest to the current date and time. For example, in the example of FIG. 3, when the current date is 6 o'clock on June 1, the navigation device 200 may perform keyword extraction or the like for a record whose schedule content is “go golf with friends”.

  Next, the navigation device 200 determines whether or not a past destination corresponding to the keyword Ktag and the start date and time Ttag is registered in the destination history information Ib (step S102). In this case, the navigation device 200 associates each of the destinations registered in the destination history information Ib with whether or not a keyword that matches the keyword Ktag is associated with the start date and time that matches the start date and time Ttag. A score (also referred to as “match score Sc”) is calculated based on whether or not it is determined. Then, when there is a destination having a matching score Sc of a predetermined value or more, the navigation device 200 determines that the destination corresponding to the keyword Ktag and the start date / time Ttag is registered in the destination history information Ib. A specific method for calculating the coincidence score Sc will be described later. The coincidence score Sc is an example of “degree of coincidence” in the present invention.

  If the navigation device 200 determines that the past destinations corresponding to the keyword Ktag and the start date / time Ttag are registered in the destination history information Ib (step S102; Yes), all the past destinations corresponding to the keyword Ktag and the start date / time Ttag are registered. Are displayed as selectable candidates for the current destination (step S103). Specifically, the navigation device 200 determines each destination registered in the destination history information Ib having a matching score Sc equal to or greater than a predetermined value as a candidate for the current destination. Thereby, the navigation apparatus 200 can suitably present destination candidates related to the schedule registered in the mobile terminal 100. Preferably, the navigation device 200 may display a list of relevant past destinations side by side with the schedule information Ia from which keywords and the like are extracted in step S101.

  If any of the destination candidates is selected as the current destination (step S104; Yes), the navigation device 200 sets the selected destination as the current destination. Then, the navigation device 200 refers to the “keyword” item of the destination history information Ib corresponding to the selected destination, and determines whether or not there is a keyword Ktag that is not associated with the selected destination. (Step S105).

  If there is a keyword Ktag that is not associated with the selected destination (step S105; Yes), the navigation device 200 associates the keyword Ktag that is not associated with the selected destination (step S106). . That is, in this case, the navigation apparatus 200 adds the keyword Ktag that is not associated with the item “keyword” of the destination history information Ib corresponding to the selected destination. On the other hand, if there is no keyword that is not associated with the selected destination among the keywords extracted in step S101 (step S105; No), that is, all the keywords Ktag are present in the destination history information Ib. If it is associated with the navigation device 200, the navigation device 200 executes step S107 described later without executing step S106.

  Next, the navigation device 200 associates the start date and time Ttag with the selected destination (step S107). That is, in this case, the navigation device 200 adds the start date and time Ttag to the item “start date and time of past schedule” of the destination history information Ib corresponding to the selected destination.

  As described above, by executing Step S106 and Step S107, the navigation device 200 can suitably increase the number of keywords and start dates that are recorded in association with past destinations as the destination history information Ib. Thereby, the precision of the search for the destination candidate at the next execution of Step S102 and Step S103 is improved.

  On the other hand, if the past destination corresponding to the keyword Ktag and the start date / time Ttag is not registered in the destination history information Ib (step S102; No), or any of the destination candidates is selected as the current destination. When there is not (step S104; No), the navigation apparatus 200 displays the destination input screen for setting the destination (step S108). If the destination is input on the destination input screen (step S109; Yes), the input destination is recognized as the current destination, and the process of step S110 is executed. On the other hand, when the destination is not input (step S109; No), the navigation device 200 continues to display the destination input screen and accepts the input of the destination.

  In step S110, the navigation device 200 associates the keyword Ktag and the start date and time Ttag with the input destination (step S110). That is, in this case, the navigation device 200 sets the keyword Ktag and the start date / time Ttag in the “keyword” item and the “start date / time of past schedule” item of the destination history information Ib corresponding to the input destination, respectively. to add. Therefore, even in this case, the navigation device 200 can suitably increase the number of keywords and start dates and times that are recorded in association with past destinations as the destination history information Ib.

  Then, after executing step S107 or step S110, the navigation device 200 searches for a route to the current destination (step S111). Then, the navigation device 200 guides the route obtained based on the search result in step S111.

  Note that here, the navigation apparatus 200 extracts the start date / time from the acquired schedule information Ia, and describes whether or not a past destination corresponding to the start date / time Ttag is registered in the destination history information Ib. However, instead of the start date and time, the end date and time may be extracted from the schedule information Ia, and it may be determined whether or not a past destination corresponding to the end date and time is registered in the destination history information Ib. In this case, the navigation apparatus 200 determines whether or not the destination at the end of the past schedule is registered in the destination history information Ib, and displays the corresponding destination as a candidate for the current destination in a selectable manner. be able to. In this example, the destination history information Ib has an item of “Past Schedule End Date” instead of or in addition to the item “Past Schedule Start Date”.

[Concrete example]
Next, a specific example of the processing of the flowchart of FIG. 6 will be specifically described for each schedule indicated by the schedule information Ia of FIG.

(1) When the scheduled content is “go to golf with friends” When searching for a destination candidate for the record of the schedule information Ia shown in FIG. 4 where the scheduled content is set to “go golf with friends”, navigation First, in step S101, the device 200 extracts “no friends” and “golf”, which are common nouns, from the character string indicating the scheduled content as keywords Ktag. In step S102, the navigation device 200 refers to the destination history information Ib shown in FIG. 5 and searches the destination history information Ib for a destination associated with the extracted keyword Ktag. As a result, the navigation device 200 recognizes the destinations “□□ driving range” and “▲▲ golf range” associated with the keyword “golf”. In this case, the navigation device 200 adds a predetermined point (for example, 50 points) for each keyword matching the keyword Ktag to the matching score Sc (initial value 0) corresponding to each recognized destination.

  Furthermore, the navigation device 200 includes the day indicated by the start date and time associated with the destinations “□□ golf driving range” and “▲▲ golf course” and the day indicated by the start date and time Ttag (ie, Saturday). It is determined whether or not they match. Since the day of the week indicated by the start date associated with the destination “□□ driving range” is Friday instead of Saturday, it does not match the day indicated by the start date Ttag. Therefore, the navigation device 200 does not add points to the coincidence score Sc corresponding to the destination “□□ driving range”. On the other hand, the day of the week indicated by the start date and time associated with the destination “▲ Golf course” is a Saturday, and therefore coincides with the day of the week indicated by the start date and time Ttag. Accordingly, the navigation device 200 adds a predetermined point (for example, 50 points) to the coincidence score Sc corresponding to the destination “▲▲ golf course”. In the case where there are a plurality of start dates and times associated with past destinations and the days of the week indicated by these are different, the navigation device 200 sets the number of days indicated by the start date and time to the number of days indicated by the start date and time Ttag. Points may be added in proportion to the match score Sc.

  Furthermore, the navigation device 200 uses the start time indicated by each start date and time associated with the destinations “□□ golf driving range” and “▲▲ golf course” that match the keywords, and the start time indicated by the start date and time Ttag (ie, 8). Recognize the difference with time. And the navigation apparatus 200 enlarges the point provided to the matching score Sc of the corresponding past destination, so that the difference of the above-mentioned start time is small. For example, the navigation device 200 adds 50 points to the match score Sc when the difference between the start times is 0 minutes, and matches when the difference between the start times is within 10 minutes. Forty points are added to the score Sc, and 30 points are added to the matching score Sc when the difference between the start times is within 20 minutes. Specifically, the navigation device 200 has a difference between the start time indicated by each start date and time associated with the destination “□□ driving range” and the start time indicated by the start date and time Ttag is greater than 20 minutes. Points are not added to the match score Sc for the destination “□□ Driving Range”. On the other hand, the navigation device 200 determines that the average difference between the start time indicated by each start date and time associated with the destination “▲▲ golf course” and the start time indicated by the start date and time Ttag is within 10 minutes. 40 points are added to the coincidence score Sc corresponding to the ground “▲▲ golf course”. Instead of calculating the average of the difference between the start time indicated by each start date and time associated with the destination and the start time indicated by the start date and time Ttag, the navigation device 200 calculates the minimum value of these differences, You may compare with the above-mentioned predetermined time (0 minute, 10 minutes, 20 minutes). In this case, since the minimum value of the difference between the start time indicated by each start date and time associated with the destination “▲▲ golf course” and the start time indicated by the start date and time Ttag is 0 minute, 50 points are added to the coincidence score Sc corresponding to the destination “▲▲ golf course”.

  In step S103, the navigation device 200 displays each destination whose match score Sc is equal to or greater than a predetermined value as a destination candidate. In this example, the navigation device 200 displays only the destination “▲▲ golf course” or both the destinations “□□ golf driving range” and “▲▲ golf course” according to the calculation result of the match score Sc. And prompt for selection. In the latter case, the navigation device 200 preferentially displays the destination “▲▲ golf course” with a high match score Sc by enlarging the destination “□□ golf driving range”, For example, priorities may be given to the destinations in descending order of the matching score Sc.

  In step S104, for example, when the destination “▲▲ golf course” is selected, the navigation device 200 determines that the “friend” among the keywords Ktag becomes the destination “▲▲ golf course” in the destination history information Ib. Judge that it is not associated. Accordingly, in this case, the navigation device 200 newly associates the keyword “friend” with the destination “▲ Golf course” registered in the destination history information Ib in step S106. In step S107, the navigation device 200 newly associates the start date and time Ttag (that is, June 1 (Sat) 8:00) with the destination “▲▲ golf course” registered in the destination history information Ib. .

  Note that if there is no storage area in the data storage unit 36 that can store the keyword added in step S106 and step S107 and the information of the start date and time, the navigation device 200 stores the predetermined information already stored. The keyword and start date / time information may be deleted from the data storage unit 36. For example, the navigation device 200 deletes the information on the start date / time registered in the item “start date / time of the past schedule” from the oldest start date / time. In another example, in addition to or instead of the above example, the navigation device 200 hits each keyword registered in the destination history information Ib in the keyword Ktag search process executed in step S102. Delete in ascending order. In another example, the keyword may be deleted by specifying the keyword that the user wants to delete and the start date and time information.

(2) In the case where the planned content is “shopping” When searching for a destination candidate for the record of the schedule information Ia shown in FIG. 4 in which the planned content is set to “shopping”, the navigation device 200 first performs step S101. The common noun “shopping” is extracted as the keyword Ktag. Then, as a result of searching for the keyword “shopping” with reference to the destination history information Ib shown in FIG. 5, the navigation device 200 determines that there is no past destination that matches the keyword Ktag. In this case, similarly to the example (1), the navigation device 200 is based on the relationship between the start date and time Ttag (10 o'clock Sunday) and the start date and time associated with the destination registered in the destination history information Ib. The coincidence score Sc is calculated. In the example of FIG. 5, since the start date and time associated with the destination “XX super” matches the start date and time Ttag (Sunday 10 o'clock), the navigation device 200 is similar to the example of (1). An addition process of the matching score Sc of the record corresponding to the place “XX super” is performed. As a result, the navigation device 200 determines that only the matching score Sc corresponding to the destination “XXX super” is equal to or greater than a predetermined value, and displays the destination “XXX super” as a destination candidate in step S103.

  If the destination “XX super” is selected in step S104, the navigation device 200 adds the keyword “shopping” to the destination “XX super” registered in the destination history information Ib in step S106. Associate a new In step S107, the navigation device 200 newly associates the start date and time Ttag (that is, June 2nd (Sunday) 10:00) with the destination “XX super” registered in the destination history information Ib.

  In the above example, if “XX super” is not selected as the destination by the user, or if there is no destination for which the match score Sc is equal to or greater than the predetermined value, the navigation device 200 determines that the destination in step S108. Displays a destination input screen that prompts the user to input a location. Then, for example, when a predetermined search condition is input on the destination input screen, the navigation device 200 refers to the map data stored in the data storage unit 36 or the map data stored in the server connected via the network. Thus, the destination candidate is searched. In another example, when there is input of location information acquired by a user from a web page on the Internet using the mobile terminal 100 or the like, the navigation device 200 sets a point or facility indicated by the location information as a destination. To do. Thereafter, in step S110, the navigation device 200 stores the destination history information Ib in which the keyword Ktag and the start date / time Ttag are associated with the destination designated by the user input.

[Modification]
Hereinafter, each modification suitable for the above-described embodiment will be described. Each of these modified examples can be applied to the above-described embodiments in any combination.

(Modification 1)
Instead of the configuration shown in FIG. 1, the navigation system 1 may not include the navigation device 200, and the mobile terminal 100 may execute all the processing of the navigation device 200.

  In this case, application software (also referred to as “navigation application”) for executing navigation processing is stored in the storage unit 13 of the mobile terminal 100, and the control unit 16 executes the route by executing the navigation application. Guidance, the process of the flowchart of FIG. 6, and the like are executed. In this case, the mobile terminal 100 may include an independent positioning device necessary for route guidance, such as an acceleration sensor, an angular velocity sensor, and a distance sensor, in addition to the components shown in FIG.

  And in this modification, when performing step S100 of FIG. 6, when the portable terminal 100 starts a navigation application by user operation, the schedule information Ia memorize | stored in the memory | storage part 13 based on control by the said navigation application. Is read. In this case, preferably, the mobile terminal 100 may display an input screen that allows the user to specify whether or not each record of the schedule information Ia should be read and used by the navigation application.

  FIG. 7 shows a display example of the above input screen. In the input screen shown in FIG. 7, the mobile terminal 100 is provided with a selection field 70 for selecting whether or not the navigation application can be read for each registered schedule. In this case, for example, when a touch with a finger is detected in the selection column 70, the portable terminal 100 switches the selection column 70 between a state where a check mark is displayed and a blank state. Then, when the navigation application is activated, the mobile terminal 100 reads out only the schedule information with the check mark in the selection column 70 from the storage unit 13 as the schedule information Ia.

  The control unit 16 according to the present modification is an example of “acquisition unit”, “control unit”, and “computer” in the present invention, and the storage unit 13 is an example of “storage unit” in the present invention. . The mobile terminal 200 according to this modification is an example of the “navigation device” in the present invention.

(Modification 2)
In the navigation system 1, the server device stores the schedule information Ia in addition to or instead of the portable terminal 100, and the navigation device 200 communicates the schedule information Ia stored in the server device in step S100 of FIG. You may acquire by.

  FIG. 8 shows a configuration example of the navigation system 1 according to this modification. In the example of FIG. 8, the navigation system 1 includes a navigation device 200 and a server device 300 that stores schedule information Ia. In this configuration, the navigation device 200 acquires the schedule information Ia from the server device 300 via the network 150 when step S100 is executed. FIG. 9 shows another configuration example of the navigation system 1 according to this modification. In the example of FIG. 9, the navigation device 1 includes the mobile terminal 100 according to the first modification described above and the server device 300 that stores the schedule information Ia. Similarly in this configuration, the portable terminal 100 acquires the schedule information Ia from the server device 300 via the network 150 when step S100 is executed.

(Modification 3)
In the description of the flowchart of FIG. 6, when the destination is selected or input in step S104 or step S109, the navigation apparatus 200 immediately searches for a route to the destination in step S111 and performs route guidance. Instead, the navigation device 200 calculates the required time to the selected or input destination, and the time point before or after the required time calculated from the start date and time extracted in step S101 is reached. Guidance to the destination may be started at a time point before a predetermined time.

DESCRIPTION OF SYMBOLS 10 Bus 11 Output part 12 Input part 13 Storage part 14 Communication part 15 GPS receiver 16 Control part 100 Portable terminal 110 Display 120 Touch panel 150 Network 200 Navigation apparatus 300 Server apparatus

Claims (1)

An acquisition means for acquiring information about the registered schedule;
Storage means for storing a keyword included in information on a schedule acquired in the past and a destination set in correspondence with the schedule;
When a keyword included in the information on the schedule acquired this time by the acquisition unit is stored in the storage unit, the destination stored in association with the keyword is displayed on the display unit as a current destination candidate Control means for causing
With
When the current destination is set from the destination candidates, the control means associates a keyword included in the information about the schedule acquired this time with the destination stored in the storage means. A navigation device characterized in that it is stored in addition to the keyword.