JP2009186219A - Navigation system, navigation apparatus and navigation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system which presents guide information with a title capable of being understood intuitively by users. <P>SOLUTION: In the navigation system, a navigation apparatus 13 is operated along with a center server 12, and the navigation apparatus comprises: a navigation section 106 for presenting a route reaching a destination as the guide information; a travel history recording section 107 for recording a travel history of a mobile object related to the user; and a destination estimating section 108 for estimating the destination of the user as an estimated destination, based on a past travel history of the user's mobile object and wherein the center server comprises: a schedule management section 102 for managing schedule information of the user; a schedule database 103 for storing the schedule information of the user; and a title-complementing section 104 which creates the title for the estimated destination, based on the past travel history of the user's mobile object transmitted from the navigation apparatus 13 and past schedule information of the user, and outputs its as complementary data for imparting to the guide information. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a navigation system, a navigation apparatus, and a navigation method, and in particular, a navigation system capable of supplementing and providing a title (label) for a destination estimated in navigation in association with schedule information of a user, The present invention relates to a navigation device and a navigation method.

  2. Description of the Related Art In recent years, navigation apparatuses that provide route guidance to a destination desired by a user have been actively used to automatically estimate the destination and provide various information related to the route guidance and route to the user (driver). It has become to. This is based on a technique of analyzing a movement history of a past moving body based on a current movement route and estimating a current destination, that is, a destination from an analysis result of the movement history. The purpose of the present technology is to meet the demand for improving the convenience of the user (driver), because it is troublesome to set the destination for the route that travels on a daily basis, every time.

  If automatic route guidance based on the estimation of the destination becomes possible, the user does not need to perform the destination setting operation directly, and the convenience is remarkably improved. Here, with respect to the automatic route guidance based on the estimation of the destination, one of the important elements is the provision of a title (label) for the estimated destination. If the estimated accuracy of the destination is 100%, it is sufficient to present only the route guidance to the correctly estimated destination and information related to the route. It doesn't matter much.

  However, in reality, it is difficult to obtain an estimation accuracy of 100%. Therefore, it is possible to efficiently present the estimated destination obtained as an estimation result to the user together with the destination estimation technique. However, it is strongly required to contribute to the improvement of usability. That is, it is important for the navigation device to explicitly indicate which place is estimated as the estimated destination this time as a title (label) in a format that is easy for the user to understand. By presenting a title like this, the user can easily recognize whether or not the estimated destination matches the destination desired by the user, and the estimation accuracy is poor. Even if the estimated destination is not the desired destination, the user can know the situation, and the user can perform an accurate correction operation on the destination.

  As a technique for automatically assigning a title (label) to an estimated destination, for example, Japanese Patent Application Laid-Open No. 2001-108466 “Vehicle Travel Guidance Device” is known. In Patent Document 1, the latitude and longitude information when the engine is turned off is recognized as information indicating the location of the destination, and the nearest address data (address name) of the point of the latitude and longitude information is determined from the map information. Acquired and recorded as movement history information together with latitude and longitude information. Therefore, when the latitude / longitude information of the estimated destination is obtained during the subsequent movement, address data relating to the estimated destination is given as a title for the estimated destination by referring to the movement history information. Can be presented to the user.

  However, in the case of the technique of adding and registering the nearest address data (address name) indicated by the map information together with the latitude and longitude information when the engine is turned off as in Patent Document 1, the nearest address data of the latitude and longitude information is registered. (Address name) is a user's impression as information indicating a point to be registered as a destination, and the user intuitively understands which destination is registered There is a great possibility that you can not. For example, even if address data such as “Near Takashima, Nishi-ku, Yokohama City, Kanagawa Prefecture” is registered along with the latitude and longitude information of the destination, such address data may be used even if you are used to In many cases, the user does not grasp, and there is a problem that it is not easy for the user to understand intuitively.

  The present invention has been made to solve such problems, and guide information with a title that is easy for the user to understand intuitively is provided as guide information for guiding the route to the user. An object of the present invention is to provide a navigation system, a navigation device, and a navigation method to be presented to a user.

  In order to solve the above-mentioned problems, the present invention estimates the destination of the user as an estimated destination based on the past movement history of the moving body used by the user, and determines the route to the designated destination. When the guide information to be guided is presented to the user, a title for the estimated destination is generated based on the past movement history of the moving body related to the user and the past schedule information of the user. The guide information is added to the information and output.

  According to the navigation system, the navigation apparatus, and the navigation method of the present invention, a title for an estimated destination is generated using schedule information that is likely to be actually acted by the user, and is sent to the user. Since the mechanism to give and output to the guide information presented for the route guide is realized, the title for the estimated destination can be made easy to understand for the user himself / herself. The estimated destination can be immediately understood from the given title.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a navigation system, a navigation device, and a navigation method according to the invention will be described in detail with reference to the drawings.

(Features of the present invention)
Prior to the description of the embodiments of the present invention, the features of the present invention will be first outlined. The navigation system according to the present invention comprises at least a navigation device and a center server (schedule server), and the two cooperate to reduce the operation burden on the user and at the same time provide guide information with a title that is easy to understand for the user. The main feature is presentation.

  Here, the navigation device estimates the destination that is the destination of the user as the estimated destination without input from the user based on the analysis result of the movement history of the moving object, and the route to the estimated destination To the user as guide information, and the center server (schedule server) is the user's schedule information (that is, personal action record set using electronic calendar, electronic diary, etc .: action schedule) , Behavior history). Using the user's schedule information recorded on the center server (schedule server) and the movement history (running history) recorded on the navigation device, the title corresponding to the estimated destination estimated by the navigation device is generated. Then, by outputting as supplementary data to be added to the guide information, the guide information with the title generated using the schedule information is presented to the user for the route guide to the estimated destination Is the main feature.

  That is, the navigation device and the center server (schedule server) constituting the navigation system are equipped with communication means for transmitting and receiving information to each other, and the user's schedule information recorded in the center server (schedule server) The schedule information corresponding to the estimated destination estimated by the navigation device is obtained by associating with the past movement history of the moving body related to the user recorded in the navigation device mounted on the user's moving body. Based on the extracted schedule information, a title (label) indicating an estimated destination is generated, added to guide information for route guide, and presented to the user.

  Here, the moving body may be of any form as long as it is a carrier for moving an occupant to a destination, such as a vehicle, ship, aircraft, etc., but in the description of the following embodiments, The description will be focused on the case of a vehicle.

  The communication means used for transmitting and receiving information between the navigation device and the center server (schedule server) is of any form as long as it is a communication means applied to a normal wireless communication system for mobile objects. Also good.

  In addition, when registering user schedule information in the center server (schedule server), the center server (schedule server) is accessed via an appropriate communication network (such as the Internet) from a client terminal possessed by each user. Therefore, in the following embodiment, mainly in the case of registration, the schedule information collected from each assigned user is registered directly in the center server (schedule server). There may be. In some cases, the configuration may be such that the client terminal or the navigation device registers and manages the user's schedule information without installing a center server (schedule server).

  In addition, as described above, the user's schedule information is information regarding an individual's action schedule and action history as registered in schedule management software widely used as an electronic schedule, electronic diary, etc. At least a schedule title, a venue, a start date / time (start date / time, end date / time), an organizer, a participant, or event contents are included.

  In addition, as the event contents of the schedule information, whether or not the schedule organizer is the user himself / herself who is presented with the guide information, and whether or not the participant in the schedule is the user himself / herself who is presented with the guide information No, whether the participants in the schedule include persons from different organizations, whether the schedule includes repetitive attributes that are held repeatedly, and the request level for participation in the schedule is presented with guide information It is also possible to register information such as whether it is mandatory for the user himself / herself and whether the participation in the schedule is made by the user himself / herself who is presented with the guide information. It is desirable to be able to register information such as participant address information, telephone numbers, homepage addresses, and email addresses.

  In addition, client terminals used by users will be described in the following embodiments centered on PCs (Personal Computers). However, PDA (Personal Digital Assistants: personal digital assistants), mobile phones, PHS ( It may be any type of terminal such as a Personal Handy-phone System) terminal.

(First embodiment)
First, as a first embodiment of the present invention, when a destination that is a destination of the moving body is estimated using a past moving history (travel history) of the moving body (vehicle) used by the user, By coordinating with schedule information that is personal action records such as electronic calendars and electronic diaries, a label that makes it easy for the user to recognize the estimated destination is generated as a title, and given to the guide information to the user An example of the case of presentation will be described.

<System configuration>
FIG. 1 is a system configuration diagram showing a system configuration of a first embodiment of a navigation system according to the present invention, and shows a basic configuration example of the present invention. As shown in FIG. 1, the navigation system according to the first embodiment is configured to include at least a client terminal 11, a center server 12, and a navigation device 13, and each other is connected to each other using a communication line (not shown). It is possible to send and receive information.

  The client terminal 11 is responsible for receiving schedule information input from the user and presenting the browsing information of the schedule information to the user. The center server 12 receives the schedule information input to the client terminal 11 as a communication line. As a result, the role of the schedule server is held. Further, the navigation device 13 has a route guidance function for guiding the user to the destination. In the present invention, the destination and travel route (without the user's destination setting operation) being further performed. It also has a destination estimation function for automatically estimating the travel route) and guiding to the destination. As described above, the center server 12 functions as a schedule server for managing the user's schedule information. For example, the center server 12 is recorded using a format such as an electronic calendar or an electronic diary. A person's action schedule and action history are managed as schedule information.

  As shown in FIG. 1, the client terminal 11 includes at least a schedule information input / output unit 101, and is configured using a general information terminal such as a PC (Personal Computer). The center server 12 includes at least a schedule management unit 102, a schedule database 103, and a title complement unit 104, and the navigation device 13 includes at least a navigation unit 106, a movement history recording unit 107, and a destination estimation unit 108.

  The schedule information input / output unit 101 of the client terminal 11 is an interface for inputting and viewing schedule information (action schedule, action history) by the user.

  The schedule management unit 102 of the center server 12 registers in the schedule database 103 based on a schedule information registration request or a schedule information acquisition request input from the user via the client terminal 11 or other schedule information. The schedule information to the client terminal 11 of the user who has detected a conflict with the user, searched for necessary schedule information, or requested to browse the schedule information, or in some cases to the client terminal 11 of another user set in advance. This is the part that performs the process of transferring.

  The schedule database 103 is a storage unit that processes and accumulates user schedule information (behavior schedule, action history) into an efficient data format. The title complementing unit 104 is a part unique to the present invention, and includes the past movement history of the moving body related to the user transferred from the navigation device 13 and the schedule information of the user stored in the schedule database 103. In view of relevance, this is a part that generates a title (label) for the estimated destination and outputs it as complementary data (that is, complementary label data) to be added to guide information to be presented to the user.

  The schedule management unit 102 has the same function as the schedule management function used in general schedule management software. In other words, as mentioned above, schedule management software as general-purpose groupware used in offices, etc., and various schedule management software such as electronic schedules and electronic diaries that can be used on mobile phones and the Internet It is good also as a form using. However, the schedule information input to the schedule management software as described above can be stored in the schedule database 103 in the center server 12 of FIG. 1 and is appropriately extracted for the title generation by the title complementing unit 104. It is necessary to be able to.

  Further, the schedule management unit 102 has at least information on the title of the schedule, the venue, the start date / time, the end date / time, the organizer, the participants, and the contents of the event as the schedule information, and further provides various accompanying information. It is desirable to have a configuration that can be expanded. For example, as the contents of the event, the strength of the participation requirements of participants such as voluntary attendance and mandatory attendance, repetitive attributes indicating whether the schedule is held repeatedly, the importance of the schedule itself, It is desirable that information such as presence / absence of participation in a schedule by a user, address information of a host or a participant, a telephone number, a homepage address, and an e-mail address can be set as schedule information. Although details will be described later, more accurate titles can be generated and assigned when titles for estimated destinations are generated by the title complementation unit 104 by using various information such as schedule information. become.

  The navigation unit 106 of the navigation device 13 is a part that calculates a route to a destination desired by the user and outputs it as guide information (guide information with a title generated by the title complementing unit 104). The movement history recording unit 107 is a storage unit that accumulates and saves the movement history of the moving object. The destination estimating unit 108 analyzes the movement history of the moving object stored in the movement history recording unit 107 based on the moving position and moving route of the moving object currently moving, so that the user can This is a part that automatically estimates the destination and route and outputs it as the estimated destination without performing the setting operation of the ground.

  As described above, in the navigation system according to the present embodiment, the navigation device 13 has a history of movement of a moving body (for example, a vehicle) related to a user in order to present guide information for guiding a route to a destination to the user. The movement history recording unit 107 for recording the destination, and the destination estimation for estimating the destination of the user by analyzing the transition of the current movement position and the movement history recorded in the movement history recording unit 107 As a center server 12 that has at least a unit 108 and manages the user's schedule information (behavior schedule, behavior history), a mobile object (for example, a vehicle) for the estimated destination estimated by the destination estimation unit 108 ) Based on the relationship between the travel history and the schedule information of the user Using the information extracted from the broadcast, to generate the understanding easy title (label) to the user, and at least a structure of the title complementation unit 104 outputs as a complement label data to be assigned to the guide information.

  Here, the user's schedule information can be input by the parties around the user in addition to the user himself / herself, but in any case, the user himself / herself will actually act Therefore, the information on the schedule location and execution location included in the schedule information is likely to be an expression that is easy for the user to understand. Therefore, by generating the information included in the user's schedule information as the title (label) of the estimated destination, use the guide information with the destination information that is highly understandable to the user as the title. Can be presented to the person.

  For example, when the title for the estimated destination is acquired from the map information as in the prior art, the facility name is not necessarily assigned to all points on the map information. In many cases, address information including the location is presented as a title for the estimated destination, for example, “Near Takashima, Nishi-ku, Yokohama, Kanagawa”. The presentation with such address information is often not understood by the user, even if the place is familiar, and it is not easy to intuitively understand the estimated destination.

  In addition, even if the facility name is registered on the map information, if multiple companies, stores, etc. are concentrated in one place, such as tenant buildings and complex commercial facilities, individual companies In many cases, the building name or the general name of the facility is registered instead of the name or store name. However, the user's actual destination is a specific company or a specific store in the building or facility, and the user knows the company name or store name, Since the name is often not grasped, the user often has difficulty understanding the estimated destination even if the building name or the general name of the facility is presented as the title.

  On the other hand, in this embodiment, since the title is generated using the schedule information registered for the user to actually act, the user is presented for the route guide. There is a high possibility that the title attached to the guide information and output can be intuitively understood.

  In the present embodiment shown in FIG. 1, as described above, a car navigation device having a communication function that is becoming popular in recent years is used as the car navigation device 13. That is, using a communication line (not shown), the past movement history of the moving body related to the user and possibly the information about the estimated destination are transmitted to the center server 12 side. An appropriate title for the estimated destination is generated by using both the schedule information input via the terminal 11 and the past movement history (including destination information in some cases) of the moving body related to the user. Thus, the information is transmitted to the navigation device 13.

  However, the present invention is not limited to the configuration shown in FIG. 1. For example, the schedule information is created not only when the user himself / herself is directly input from the client terminal 11, but is also created by another device and the client terminal. 11 may be configured to be transmitted to the center server 12 from the client terminal 11, or may be configured to be input directly to the center server 12 instead of the client terminal 11. The format may be such that the schedule information from other users is set as the schedule information for the user instead of the user himself / herself.

  The client terminal 11 may be a PDA (Personal Digital Assistants), a mobile phone, a PHS (Personal Handy-phone System) terminal, or the like, instead of a PC (Personal Computer).

  In addition, unlike the configuration of FIG. 1, as shown in FIG. 2, the title complementing unit 104 that generates a title for the estimated destination and outputs it as complementary label data to be added to the guide information is not the center server 12 side. The navigation device 13 may be arranged on the navigation device 13 side. FIG. 2 is a system configuration diagram showing a system configuration different from that of FIG. 1 of the navigation system according to the present invention.

  Furthermore, the schedule information is transferred from the client terminal 11 to the navigation device 13 by direct connection or connection via a communication line without going through the center server 12, and a title for the estimated destination is generated on the navigation device 13 side. And it is also possible to make it the structure output as complementary label data which should be provided to guide information.

  In this case, as shown in FIGS. 3 and 4, the navigation system can be configured by the client terminal 11 and the navigation device 13, and the title complement unit 104 is not the center server 12 side but the navigation device 13. The functions corresponding to the schedule management unit 102 and the schedule database 103 are arranged on the client terminal 11 or the navigation device 13 side. 3 and 4 are system configuration diagrams showing a system configuration further different from that of FIG. 1 of the navigation system according to the present invention. In FIG. 3, the title complementing unit 104 is arranged on the navigation device 13 side, and a schedule management unit is shown. 102 shows a case where functions corresponding to the schedule database 103 are arranged on the client terminal 11 side. FIG. 4 shows not only the title complementing unit 104 but also functions corresponding to the schedule management unit 102 and the schedule database 103 in the navigation device. The case where it arrange | positions to 13 side is shown.

  Alternatively, the information about the past movement history and the estimated destination is transferred from the navigation device 13 to the client terminal 11 side through the direct connection or the connection via the communication line without using the center server 12, and the estimated destination is The title information generated by the client terminal 11 is generated by the client terminal 11 and sent back to the navigation device 13 through the direct connection or the connection via the communication line without passing through the center server 12. May be presented to the user.

  Also in this case, the navigation system can be configured by the client terminal 11 and the navigation device 13 as shown in FIG. 5, and the title complementing unit 104 is arranged on the client terminal 11 side, and the schedule management unit A function corresponding to 102 is also arranged on the client terminal 11 side. FIG. 5 is a system configuration diagram showing a system configuration different from that of FIG. 1 of the navigation system according to the present invention. Functions corresponding to the title complementing unit 104, the schedule management unit 102, and the schedule database 103 are provided on the client terminal 11 side. The case where it arrange | positions is shown.

  As described above, in the navigation system having any of the configurations shown in FIGS. 1 to 5, the destination estimation unit 108 has the same or similar to the past movement history depending on the movement route and movement position of the moving body currently moving. Whether or not there is a movement history is estimated, and a destination as a destination is estimated based on the obtained analysis result. When the guide information for guiding the route to the estimated destination is output to the user, the title complementing unit 104 is based on the user's schedule information and the moving history of the moving object (that is, the schedule information and the moving information). Based on the results of analyzing relevance such as consistency and similarity with the history), a title can be generated for the estimated destination and output as complementary label data to be added to the guide information. ing.

  Therefore, the title complementing unit 104 can make the title for the estimated destination estimated by the destination estimating unit 108 information that uses schedule information, so that the content can be easily understood by the user himself / herself. The validity of the estimated destination can be immediately determined from the title given to the guide information. As a result, when the estimated destination is different from the desired destination, the user can immediately and accurately perform appropriate measures such as correction of the destination. .

<Specific implementation examples of basic functions>
Next, an example of a specific device configuration for realizing basic functions in each device in the navigation system of FIG. 1 will be described with reference to FIG. FIG. 6 is a device configuration diagram showing an example of a specific device configuration for realizing basic functions in each device in the navigation system of FIG.

  In the example shown in FIG. 6, the schedule information input / output unit 101 of the client terminal 11 includes at least a general-purpose input device 211 including a keyboard 2111 and a touch pad 2112, a general-purpose input device including a display 2141 and a speaker 2142. A general information terminal that is realized by combining a typical output device 214, an arithmetic device 212, and a storage device 213, and has a communication function with the center server 12 (in some cases, the navigation device 13). Has been. For example, as described above, PC (personal computer), PDA (personal digital assistant), mobile phone, PHS terminal, etc. are good examples. Furthermore, as long as the client terminal 11 has a mechanism that enables mutual exchange (import / export) of information with a plurality of types of information terminals such as a PC, PDA, mobile phone, and PHS terminal, Usability is improved. That is, flexibility and flexibility can be improved by adopting a configuration in which information input from one type of information terminal can be viewed and corrected from another type of information terminal. In addition, even in the system configuration as shown in FIGS. 2 to 5, a general information terminal having a communication function is similarly used as a configuration for realizing each function arranged in the client terminal 11. it can.

  In the example shown in FIG. 6, the schedule management unit 102, the schedule database 103, and the title complementing unit 104 of the center server 12 are realized by combining at least a general arithmetic device 221 and a storage device 222, and a client terminal. 11 and a navigation device 13 and a general server device having a communication function. The center server 12 preferably has a powerful and stable computing capability and a large-capacity storage area in order to respond to information input / output requests from many users. For example, it is desirable to have a server configuration in which a plurality of general-purpose PCs (personal computers) are connected in a cluster shape to exhibit a large overall performance. Further, even in the system configuration as shown in FIG. 2, a general server device can be similarly used as a configuration for realizing the functions arranged in the center server 12.

  In the example shown in FIG. 6, the navigation unit 106, the movement history recording unit 107, and the destination estimation unit 108 of the navigation device 13 are at least a general-purpose input device 231 including a touch panel 2311, a switch 2312, and a microphone 2313. , A general-purpose output device 234 including a display 2341 and a speaker 2342, an arithmetic device 232, and a storage device 233, and communication with the center server 12 (in some cases, the client terminal 11). It is constituted by a general information terminal having a function. In addition, even in the system configuration as shown in FIGS. 2 to 5, a general information terminal having a communication function is similarly used as a configuration for realizing each function arranged in the navigation device 13. it can.

  As described above, the client terminal 11, the center server 12, and the navigation device 13 each include a communication interface that implements a communication function, and at least between the client terminal 11 and the center server 12, the center server 12 Any information can be exchanged between the navigation device 13 and the navigation device 13. In addition, as described above, the client terminal 11 or the navigation device 13 itself can be configured to include the title complement unit 104. In such a case, the client terminal 11 and the navigation device 13 are not connected to the center server 12. It is also possible to adopt a configuration in which information is exchanged with each other directly or via a communication line.

<Example of specific title generation method>
Next, an example of a specific example in which the title complementing unit 104 of the center server 12 shown in FIG. 1 generates a title for the estimated destination will be described.

  As described above, the schedule information input / output unit 101 of the client terminal 11 accepts input of the user's schedule information input directly from the user to the client terminal 11 or transferred from another device. . The input schedule information is stored in the schedule database 103 via the schedule management unit 102 of the center server 12. Here, as an interface of the schedule information input / output unit 101, a function similar to an interface provided in a groupware that can generally manage a mail function, an address book function, and a schedule function that are widely used. It is desirable to have. In this case, the schedule management unit 102 of the center server 12 is also provided with an address book database in which each user's address information, telephone number, homepage address, mail address, etc. are registered in association with the schedule database 103. Is desirable.

  An example of a user interface in the schedule information input / output unit 101 of the client terminal 11 is shown in FIG. FIG. 7 is a schematic diagram illustrating an example of a user interface in the schedule information input / output unit 101 of the client terminal 11, and FIG. 7A illustrates an example of screen information for inputting user schedule information. FIG. 7B shows an example of screen information for displaying a list of user schedule information.

  That is, the schedule input screen 31 in FIG. 7A is an example of a screen that provides an input interface for inputting one schedule information. The title of the schedule, the venue, the organizer, the essential participants, the optional participants, and the start Date / time, end date / time, importance, presence / absence of disclosure, user's own participation information (participation, provisional participation, unrepresentation, non-participation, etc.) and schedule supplementary information (e.g. email text and material (Attachment, signature, etc.) can be entered, and not only the title of the schedule, venue, start date and time, end date and time, organizer, participants, event contents, but also various accompanying information are given It is set as the structure which can be extended.

  Moreover, the schedule list display screen 32 in FIG. 7B shows an example of a screen that provides an output interface that displays a list of input schedule information in time series, and schedule information by time for each date is shown. Listed. For example, for a schedule titled “Product Description Meeting” input as schedule information on the schedule input screen 31 of FIG. 7A, 9th of January 9 in the schedule list display screen 32 of FIG. A title, a venue, and presence / absence of participation are displayed as a product explanation meeting 321 in the time zone from 30:30 to 12:00.

  Furthermore, in the example of FIG. 7 (B), in addition to the product explanation meeting 321, schedules such as a dentist 322, a company C meeting 323, a monthly report meeting 324, and a XX magazine interview 325 have already been input. All schedule information that has been entered as schedules for dates within the display range is listed. Here, the schedule list display screen 32 is displayed on a display with a touch panel. At the same time, the schedule list display screen 32 can be changed, added, deleted, etc. using a touch panel or the like.

  In addition, in the participant fields (participation (required) and participation (optional) fields) shown in the schedule input screen 31 in FIG. 7 (A), in addition to the name of the participant and the company to which the participant belongs, the participant The e-mail address can be entered, and after the schedule is created, the created schedule is notified to the participant using e-mail, so that the schedule is shared with other participants as well as the creator. can do.

  Here, the e-mail address of the participant can be directly input by the creator of the schedule into the participant field. However, as described above, by providing the address book function as the schedule information input / output unit 101, It is also possible to efficiently input information such as the email address of the participant by selecting from the address book as appropriate. Furthermore, the same applies to the venue, and the creator can directly enter it. In addition, if information about the venue is stored in the address book, it can be entered efficiently only with the selection operation. It is also possible to do.

  An example of schedule information recorded in the schedule database 103 is shown in FIG. In the registration example shown in FIG. 8, each schedule information in the schedule database 103 is registered with an ID (Identification Number) for identifying each schedule, and the title, start date and time, and end date and time of each schedule. , Location, organizer, required participant, voluntary participant, importance, presence / absence of disclosure, user's own participation statement, supplementary information are registered.

  Each schedule of the product explanation meeting 321, dentist 322,..., OO magazine coverage 325 illustrated in FIG. 7B is ID = 1, 2,..., In the schedule information registration example shown in FIG. 5 is registered. In addition, as an example of registration shown in FIG. 8, in addition to these schedules, an example in which schedules with ID = 6 to 9 are registered and held is shown.

  On the other hand, the destination estimation unit 108 of the navigation device 13 collates the movement position information of the moving body currently moving with the past movement history, and analyzes the past movement frequency, etc. Estimate the expected destination. Thereafter, the position information of the estimated destination obtained as the destination estimation result is sent to the center server 12 together with the past movement history, and the title (label) corresponding to the estimated destination is inquired. Note that the latitude / longitude information is basically used as the position information of the estimated destination. However, when the facility name or address information corresponding to the latitude / longitude information is recorded in the past movement history, the facility name or address information accompanying the latitude / longitude information is also sent to the center server 12. It is good also as a form to do.

  In the title complementing unit 104 of the center server 12, the position information data of the estimated destination transmitted from the navigation device 13 (including latitude / longitude information and, in some cases, facility name or address information), and the schedule database 103 The schedule information acquired from the above is collated, and schedule information corresponding to the estimated destination (that is, schedule information having a high degree of coincidence or similarity with the estimated destination) is extracted. Thereafter, a title for the estimated destination is generated based on the extracted schedule information, and is output to the navigation device 13 as complementary label data to be added to the guide information.

  As described above, the title complementing unit 104 stores the schedule information of each user as shown in FIG. 8 in the schedule database 103 of the schedule server, that is, the center server 12, for example. Search the schedule information of the user, and generate a title for the estimated destination using any of the schedule title, venue location, date and time, organizer, participants, and event content related to the retrieved user's schedule information Thus, since it can be given to the guide information to be presented to the user, it is possible to present information on the destination that is highly understandable to the user as the title.

  In addition, the movement history recording unit 107 of the navigation device 13 includes at least a past movement route of the moving body related to the user, a departure / arrival point (mainly engine start / stop positions), and a departure / arrival date and time ( Mainly, the engine start / stop date and time) is recorded as movement history data of the moving body for each user.

  Therefore, the title complementation unit 104 acquires the movement history data related to the moving object related to the target user from the movement history recording unit 107, and the information related to the arrival date and time from the movement history data related to the place estimated as the estimated destination. , And schedule information having start date and time information corresponding to the extracted arrival date and time can be searched from the schedule database 103. By obtaining schedule information having start date and time information corresponding to arrival date and time, it is possible to associate the past movement history actually moved to the estimated destination with the schedule information that arrived and held at the estimated destination. Is possible.

  As described above, when the schedule information is extracted from the schedule database 103 using the arrival date and time in the past movement history data, the title complementation unit 104 generates a title by the following procedure, for example.

  The schedule information having the start date and time information corresponding to the arrival date and time of the movement history data to the estimated destination is, for example, the schedule of ID = 1 (product explanation meeting) in the schedule information in the schedule database 103 of FIG. If it corresponds to information, it is assumed that “A company's third reception room”, which is the location information of the schedule information, is appropriate as the title.

  Here, when the display space for the guide information to be presented to the user is limited as a title and the character string “Company A 3rd reception room” cannot be displayed, for example, text From the analysis result, information on detailed locations (for example, “third reception room” in the case of “A company third reception room” described above) is deleted, and the title is simply used as “Company A”. You may do it. However, detailed information such as “3rd reception room” is considered useful during actual movement, so even if it is omitted, detailed information display was instructed by the user's operation. In some cases, it is desirable to attach a function that enables display.

  Further, the information extracted as the title can be, for example, information such as the title of the schedule, the holding time, and the participants in addition to the information about the holding place. For example, in the case of ID = 1 (product explanation meeting) in FIG. 8 described above, the title and the venue are combined as the title to make “A company's third reception room (product explanation meeting)”, or By combining the venue and the time, it becomes “Company A's third reception room (9: 30-12 o'clock)”, or by combining the venue and the participants, “Company A's third reception room ( A company xx-like) ". Moreover, you may combine 3 or more types of information among information, such as a holding place, a title, holding time, a participant, not only the combination of only 2 types of information.

  Furthermore, when generating the title, a display standard is determined in advance in consideration of hardware requirements such as the display range of the display unit and requirements such as the amount of information that is not bothersome for the user. It is desirable that the display contents be adjusted and output based on the reference.

  As described above, when the estimated destination information sent from the navigation device 13 to the center server 12 side includes not only latitude / longitude information but also address information and information of the corresponding facility name. The title may be generated by further combining information such as address information and facility name information. For example, in the example of ID = 1 (commodity explanation meeting) in FIG. 8, as estimated destination information acquired from the navigation device 13, address information “Ginza in Chuo-ku, Tokyo” and facility name information “○ In the case where “Building” or the like is obtained, titles such as “Company A (Ginza, Chuo-ku, Tokyo)” or “Company A × XX (XX Building)” may be used.

  Further, even in the case of schedule information in which information such as a venue and a participant is not set, if text information is registered in the supplementary information in FIG. Similar information may be extracted by analyzing the information.

  For example, in the case of schedule information with ID = 3 (meeting company C) in FIG. 8, information on the venue is not described, but as shown in the supplementary information column, mail exchanged with the other party as text information ( “XX (greeting text) -signature: Company C”) is registered, and the signature “Company C” is attached as a signature column of the mail. In such a case, by extracting the name, corporate name, address, etc. of the other party from the information in the signature field and using it as the title, a title similar to the case where the information regarding the venue is set is generated. be able to.

  As a method for extracting schedule information from the schedule database 103, generally known text mining and syntax analysis methods can be applied. When such text mining and syntax analysis methods are used, it is desirable to define various rules so that information related to a place can be extracted effectively. For example, defining rules for extracting proper nouns (person names, corporate names), addresses, telephone numbers, e-mail addresses, and other keywords associated with places such as “buildings” and “stores”.

  However, as a result of attempting to extract information related to the location based on such rules, there may be cases where no information related to the location is obtained. For example, there is a case where only two pieces of information of the start date and time and the end date and time are registered as schedule information. As described above, when the information related to the place cannot be obtained from the schedule information, it is difficult to generate a title for the estimated destination. Therefore, in such a case, it is appropriate for the title complementing unit 104 to determine that “there is no schedule information for generating a title”, and it is desirable to give this fact to the guide information and present it to the user. .

  As described above, the title complementing unit 104 relates to the estimated destination estimated by the destination estimating unit 108 at least information related to the start date and time included in the schedule information and at least the arrival date and time that can be extracted from the movement history. By extracting the schedule information corresponding to the movement history from the information and using the configuration for generating the title, it is possible to make the title using the schedule information that has been actually implemented, which is more understandable for the user An estimated destination with a title can be presented.

  In addition, the title complementing unit 104, for the estimated destination estimated by the destination estimating unit 108, the title of the schedule constituting the schedule information corresponding to the estimated destination, the location, the date and time, the organizer, the participants, and the event content By generating a title for the estimated destination based on the content included in any one or a plurality of information such as information on the information, it is possible to present guide information that is easy for the user to understand intuitively.

  Furthermore, the title complementation unit 104 obtains a title for the estimated destination estimated by the destination estimation unit 108 from, for example, information related to the location included in the schedule information and map information related to the destination that can be extracted from the movement history. It is also possible to use a configuration of generating, and in such a case, a title that combines the name of the estimated destination included in the schedule information and the name of the estimated destination (address name or facility name) obtained from the map information is used. It is also possible to generate an estimated destination with a title that is highly understandable to the user.

  When the schedule information related to the movement history data obtained from the movement history recording unit 107 is recorded on the schedule database 103 in a one-to-one correspondence, the title complementing unit 104 performs the above-described processing. A title can be given by a procedure. However, normally, it is assumed that a plurality of similar movement history data is recorded in the movement history recording unit 107 and a plurality of corresponding schedule information exists in the schedule database 103.

  As described above, when the movement history data and the schedule information have a many-to-many relationship, a plurality of corresponding schedule information in the schedule database 103 is extracted for the movement history data having the same destination. Therefore, for each of the plurality of extracted schedule information, it is desirable to pay attention to information other than the location and appropriately combine the information of each schedule information based on a predetermined rule to generate a title. .

  For example, as a predetermined rule for integrating information, focusing on the freshness of information, a method of preferentially using information included in the latest schedule among the corresponding schedule information, or configuring schedule information Paying attention to the frequency of appearance of the same or similar characters for each information related to the schedule title, venue, date and time, organizer, participants, and event contents, the corresponding schedule information appears redundantly. It is desirable to apply a method that uses information preferentially. That is, a method that uses the freshness of schedule information and a method that preferentially uses information that frequently appears redundantly as main information by analyzing the appearance frequency of text information that appears in the corresponding schedule information. It is desirable.

  In the latter case, that is, the degree of similarity between schedule information is determined based on the degree of coincidence of the schedule title, venue, date and time, organizer, participant, and event content that constitute each schedule information. As an example of the evaluation method, information indicating the holding location in the corresponding schedule information will be described next.

  For example, when information such as “Company A, Third Conference Room”, “Company A, Second Conference Room”, “Company A Reception Room” exists as information indicating the location, the frequency of appearance is the highest. A method such as extracting a commonly used keyword “Company A” is applied. In addition, even if the characters themselves do not match, if the meanings are similar, the appearance frequency should be analyzed by applying a semantic clustering method that considers them to be the same keyword. Is also effective. For example, “meeting”, “meeting”, “business negotiation”, etc. are regarded as having similar meanings, and all of these are clustered by, for example, the representative keyword “meeting” and the appearance frequency is counted. Such a method is used.

  In addition, a method for performing an appearance frequency analysis with a weight in consideration of both the freshness of the schedule information and the appearance frequency in the schedule information (that is, assigning a greater weight to the text information of the new schedule information). , A method of analyzing the appearance frequency of keywords) may be employed.

  Furthermore, when searching for the corresponding schedule information, instead of simply searching based on the arrival date and time, for example, a mechanism for extracting the relevant schedule information for each moving route pattern and generating a title Makes it possible to generate more accurate titles. For example, the schedule information when going to the point Z via the point X and the schedule information when going to the point Z via the point Y are analyzed as separate items, and the generation of the title and the guide information By adopting a configuration that assigns the title, if the user's purpose is different for each route pattern, the title can be generated by discriminating each schedule information. When different information is included in both schedule contents, a title appropriately reflecting this different information can be generated.

  As described above, when there is no applicable schedule information that can be applied to generate a title, the title is generated based on the relationship between the movement history and the schedule information. The method cannot be applied. When such a case occurs, as described above, the fact is notified to the navigation device 13 as complementary data, so that the navigation device 13 that has received such notification as in the case of the prior art. , The map information is searched using the latitude and longitude information of the estimated destination, and the facility name and address name existing at the corresponding position on the map information may be extracted as the title.

  However, if the title is generated using the facility name or address name extracted from the map information in this way, the fact that it is not linked to the schedule information (that is, the title is not based on the schedule information) is used. In order to notify the user, it is desirable that when the title is presented to the user as guide information, the display method of the title is different from that extracted from the schedule information. For example, differentiation may be achieved by using a title font, background color, or an icon that makes it easy for the user to identify whether the title is linked to schedule information.

  FIG. 9 shows an example in which navigation information to an estimated destination (candidate destination) is displayed on the screen as guide information with a title in the navigation device 13. In the navigation screen of FIG. 9, on the map screen, the current position of the user's own vehicle is shown as a point P50 in the center of the screen, and the estimated destinations (candidate destinations) at the present time are points P51, P52 and P53. The optimum routes to the points P51, P52, and P53, which are estimated destinations (candidate destinations), are indicated as routes R51, R52, and R53.

  In the window frame on the right side of the navigation screen of FIG. 9, estimated destinations A, B, and C corresponding to points P51, P52, and P53, which are the current three estimated destinations (candidate destinations), are destination candidates. A plurality of D54, D56, and D58 are displayed, such as Company A (conference), head office (Tokyo) (regular meeting), and office (Yokohama).

  The reliability of each of the plurality of destination candidates D54, D56, D58, that is, the degree of estimation (that is, the degree of coincidence between the schedule information and the movement history, the degree of similarity) is shown by the length of the cylindrical graph in FIG. The example shows a case where the reliability (estimation degree) of the schedule information used for the titles in the order of the destination candidates D54, D56, and D58 is high. It should be noted that the determination method regarding the reliability of the schedule information used for the titles such as the destination candidates D54, D56, D58, that is, the reliability indicating how appropriate the schedule information is to be generated as the title. The determination method to be evaluated will be described in detail in the second embodiment.

  Here, when the screen display of FIG. 9 is displayed on a display with a touch panel, for example, the user can select any one of the destination candidates D54, D56, and D58 on the navigation screen. When the candidate is touched, the touched destination candidate is determined as a destination desired by the user, and the other destination candidates are deleted from the navigation screen.

  In addition, when the title is based on the schedule information so that the user can easily recognize whether the title is based on the information obtained from the schedule information in the schedule database 103, Like the schedule icons D53, D55, and D57 in FIG. 9, icons indicating that the information is obtained from the schedule information are displayed together. On the other hand, the title obtained from the map information is used without using the schedule information. If there is, the schedule icon is not displayed as in the estimated destination D in FIG. 9 (Takashima, Nishi-ku, Yokohama).

  As described above, the title complementing unit 104 has the same location information as the arrival location included in the past movement history of the moving object related to the user recorded in the movement history recording unit 107. When there are a plurality of the schedule information in the schedule database 103, each of the plurality of schedule information is appropriately integrated according to a predetermined rule, and the estimation estimated by the destination estimation unit 108 using the integrated information By using a configuration that generates a title for the destination and outputs it as complementary label data to be added to the guide information, it is possible to present an estimated destination with a title that is more understandable to the user. .

  Further, the title complementing unit 104 includes the schedule information of the user having the same location information as the arrival place included in the past movement history of the moving object related to the user recorded in the movement history recording unit 107. Is present in the schedule database 103, the freshness can be improved by adopting a configuration in which the title is generated based on the freshness and / or similarity (that is, the appearance frequency of the same information) of the plurality of schedule information. A title for the estimated destination estimated by the destination estimation unit 108 can be generated by using a high schedule and / or a schedule with a high degree of similarity preferentially, and an estimation given a title that is more understandable to the user The destination can be presented.

  Furthermore, the freshness of the schedule information is evaluated as the elapsed time from the creation date or the implementation date of the schedule information, and the similarity of the schedule information is the schedule title, venue, date and time, organizer, participant, By adopting a configuration that evaluates from the degree of coincidence of at least one of the information related to event contents, the freshness and similarity of schedule information can be obtained more reliably, and titles that are more understandable to users can be obtained. The given estimated destination can be presented. When evaluating the degree of coincidence of each information, not only the same characters but also characters having the same meaning are clustered as being coincident, so that the similarity of schedule information can be more reliably determined. Can be evaluated.

<Title generation processing example>
Next, a series of processing procedures up to the title generation in the navigation system of the present embodiment described above will be further described with reference to the flowchart of FIG. FIG. 10 is a flowchart showing an example of a series of processing procedures until title generation in the navigation system according to the present invention, and shows an example of the navigation method according to the present invention. In the flowchart of FIG. 10, the processing from step S101 to step S106 shown in FIG. 10A is the processing between the client terminal 11 and the center server 12, while the processing from step S107 to step S116 shown in FIG. The processes up to are the processes between the navigation device 13 and the center server 12.

  10A and 10B are independent processes. When the user updates and registers the schedule information in the center server 12 using the client terminal 11 in FIG. Thereafter, in FIG. 10B, when the center server 12 generates a title related to the estimated destination estimated by the navigation device 13, the schedule updated and registered by the user in FIG. The information can be used.

  First, the process between the client terminal 11 and the center server 12 in FIG.

  In FIG. 10A, the center server 12 waits for a schedule browsing request from the user's client terminal 11, and when there is a schedule browsing request (YES in step S101), the user's schedule browsing request. The schedule information of the requested date / time range and time range is retrieved from the schedule database 103 based on the above, and is shaped into a format on a GUI (Graphical User Interface) and transferred to the client terminal 11 via the communication line. (Step S102).

  Next, the client terminal 11 displays the transferred schedule information on the screen and waits for input of a new schedule from the user. If there is an input of a new schedule (YES in step S103), step S104 is performed. Migrate to Even if there is an input for correction / update of a registered existing schedule instead of a new schedule, the process similarly proceeds to step S104. Note that the user's schedule information is not limited to the case where the user inputs directly, but may be the case where the schedule information transferred from another device is input.

  In step S104, it is confirmed whether or not there is an abnormal value indicating abnormal contents in the schedule information input from the user (step S104). As an abnormal value of the schedule information, for example, there is a contradiction between the start date and time and the end date and time, the presence of a conflict schedule, and the like. When such an abnormal value is detected (YES in step S104), the user is notified that the abnormal value exists, prompts the user to re-enter schedule information, and returns to step S103. However, regarding the existence of a conflicting schedule, the user may be notified of the fact that there is a conflict, and the registration of the conflicting schedule information itself may be permitted.

  If no abnormal value is detected for the input schedule information (NO in step S104), the schedule information to be registered is confirmed, the process proceeds to step S105, and the client terminal 11 sets the confirmed schedule information. The data is transferred to the center server 12 via a communication line (step S105). The center server 12 that received the schedule information from the client terminal 11 records the transferred schedule information in the schedule database 103 under the control of the schedule management unit 102 (step S106).

  Next, processing between the navigation device 13 and the center server 12 in FIG. 10B will be described.

  In FIG. 10B, when the navigation device 13 detects the start of the engine (YES in step S107), the navigation device 13 records the movement history as the movement history of the moving body with reference to the movement history recording unit 107 in which the movement history is recorded. The travel history information (that is, travel history data) such as the past travel route, departure place, arrival place, departure date and time, arrival date and time is transmitted to the center server 12 via the communication line (step S108).

  The title complementing unit 104 of the center server 12 searches the schedule database 103 based on the destination information included in the movement history data acquired from the navigation device 13, and for each destination the same as the destination. Schedule information having information on the start date and time held near the arrival date and time of the arrival place is extracted (step S109). If the corresponding schedule information does not exist in the schedule database 103 (NO in step S110), it is added that the corresponding schedule information does not exist, and the process proceeds to step S112.

  On the other hand, if the corresponding schedule information exists in the schedule database 103 (YES in step S110), the text information of each schedule information group extracted from the schedule database 103 is analyzed and given to the guide information. A title (label) to be generated is generated (step S111).

  Here, as the title generation method, as described above, for each of the extracted schedule information, each of the schedule information, the venue location, the date and time, the organizer, the participants, or the event contents, etc. Extract important keywords with high appearance frequency based on the analysis result of appearance frequency in the text information of the information, or the latest schedule with high freshness based on the analysis result of each schedule information creation date or holding date For example, keywords are preferentially extracted from text information in the information.

  Next, if a title has been generated in step S111, the title generated for the estimated destination is notified. On the other hand, if it is notified in step S110 that the corresponding schedule information does not exist, Information to that effect is transferred from the center server 12 to the navigation device 13 as complementary data to the guide information to be presented to the user (step S112). In the navigation device 13 that has received the supplemental data, when the title is received as the supplemental data, the navigation device 13 corresponds to each arrival location recorded as the movement history data in the movement history recording unit 107 of the navigation device 13. The received title is recorded in the movement history recording unit 107, and thereafter, the movement history data is handled in a form including the title in addition to the address / latitude information of the arrival place and the map information. good.

  Thereafter, in the destination estimation unit 108 of the navigation device 13 that has received the complementary label data, based on the current movement position and movement route of the moving body, in view of the past traveling history (movement history) of the moving body, The current destination (scheduled arrival location) is estimated as the estimated destination (step S113). Furthermore, referring to the title of each destination that has been transferred from the center server 12 and there is a title obtained from the schedule information for the estimated destination estimated (YES in step S114), FIG. As shown, a title corresponding to the estimated destination is attached to the guide information with a schedule icon, and presented to the user (step S115).

  On the other hand, for the estimated estimated destination, if the corresponding schedule information does not exist and the title generated from the schedule information does not exist (NO in step S114), the map is used without using the schedule information. From the information, the name of a nearby address where the latitude / longitude information is located or the facility name indicated by the latitude / longitude information is extracted, and the extracted information is given to the guide information as a title without a schedule icon and presented to the user. A non-scheduled title assignment process is performed (step S116).

  In this flowchart, the information about the estimated destination is not transferred from the navigation device 13 to the center server 12 side, and only the movement history data is transferred in step S108, so that the estimation is performed from the center server 12 side. An example is shown in which a title using schedule information that is considered to be closely related to movement history data is generated regardless of the destination, and is returned to the navigation device 13 as complementary data. Therefore, after that, the case where the title corresponding to the estimated destination estimated in step S113 is extracted from the supplementary data returned from the center server 12 on the navigation device 13 side is shown.

  However, as described above, the present invention is not limited to such a case. The estimation destination estimation process in step S113 is performed before step S108. In step S108, the estimation of the estimation destination is estimated. The estimated destination obtained by the processing may be transferred to the center server 12 side together with the movement history data. In such a case, a title using schedule information that is considered to be closely related to the estimated destination in the movement history data is generated from the center server 12 side, and is returned to the navigation device 13 as complementary data. On the navigation device 13 side, it can be determined whether or not the title is included in the complementary data, and if it is included, it can be immediately given to the guide information and output.

  As described above, due to the interlocking operation of the client terminal 11, the center server 12, and the navigation device 13, the same or similar movement history exists in the past movement history as the movement route or movement position of the moving body currently moving. Based on the analysis result of the movement history of the past moving body, the destination that is the destination is estimated, and the guide information that guides the route to the estimated destination is given to the user as the saviation data The estimated purpose estimated based on the user's schedule information and the movement history of the moving object (that is, based on the analysis result of the degree of coincidence and similarity between the schedule information and the movement history) The operation of generating the title of the place, giving it to the guide information and outputting it is realized.

  Therefore, the title for the estimated destination can be easily understood by the user, and the user can immediately determine the validity of the estimated destination from the title given to the guide information. . As a result, when the estimated destination is different from the desired destination, the user can immediately and accurately perform appropriate measures such as correction of the destination. .

(Second Embodiment)
<System configuration>
FIG. 11 is a system configuration diagram showing a system configuration of the second embodiment of the navigation system according to the present invention. As a basic configuration of the present invention, a configuration example different from FIG. 1 of the first embodiment is shown. Yes. As shown in FIG. 11, the navigation system of the second embodiment is configured to include at least a client terminal 11, a center server 12A, and a navigation device 13, as in the case of FIG. 1 of the first embodiment. However, unlike the case of FIG. 1, a reliability determination unit 105 is further added to the center server 12A. The system configuration as in FIGS. 2 to 5 of the first embodiment is basically the same, but in such a case, the reliability determination unit 105 is installed in the center server 12A. It is desirable to arrange them in the same device (navigation device 13 or client terminal 11) as the title complement unit 104.

  The difference between this embodiment and the first embodiment is that the reliability determination unit 105 outputs a result of determining whether or not the schedule information is suitable for generation as a title by using an index of “reliability”. In the point. The “reliability” referred to here is an index indicating the degree to which the schedule information recorded in the schedule database 103 can be regarded as actually being observed by the user. The higher the level is, the more strict the schedule information is, and the more accurate the information indicating the title of the estimated destination is.

  The index indicating the reliability of the schedule information determined by the reliability determination unit 105 is referred to by the title complement unit 104 to acquire schedule information that can be used as a title, and the acquired schedule information and movement Based on the history data, it is also used when generating a title for the estimated destination, and it is possible to switch the target range of the schedule information extracted as the title, and the generated title and the reliability determination unit 105. It is possible to perform an operation of outputting the reliability determined in step 3 as complementary data (complementary label data) to be added to the guide information.

  In the navigation device 13 that has received the complementary label data, the title included in the complementary label data is added to the guide information, and at the same time, the reliability related to the title included in the complementary label data is also determined by the guide information. And present it to the user. As a result, for example, when one or a plurality of estimated destinations are obtained as destination candidates, the user can grasp the degree of estimation for each estimated destination, that is, the reliability. It is possible to more accurately determine whether the destination should be set as the destination.

  As an example of the screen display regarding the reliability, as shown in FIG. 9 of the first embodiment, it may be displayed as the length of a cylindrical graph with a title indicating the estimated destination, Alternatively, the icons may be displayed as icons having different sizes, shapes, colors, and gradations according to the reliability level.

  In the following description, the description overlapping with the first embodiment is omitted, and only the function of the reliability determination unit 105 different from the first embodiment will be described.

  In the present embodiment, as described above, in addition to the title generation / assignment operation in the navigation system in the first embodiment, from the evaluation result of the degree of coincidence between the schedule information, the movement history, and the estimated destination, The schedule information is likely to be followed by the user, that is, the reliability determination unit 105 that evaluates the reliability of the schedule is used. As for the schedule information that is likely to be observed by the user himself, the title for the estimated destination indicates higher reliability and more accurate information.

  The reliability determination unit 105 includes, for example, the arrival date and time included in the history group classified by the movement history of the departure place and the arrival place with respect to the past travel history (movement history) acquired from the movement history recording unit 107. Based on the departure date / time history information, the corresponding schedule information may be extracted from the schedule database 103, and the reliability of the extracted schedule information may be determined. This is realized by combining the arithmetic device 221 and the storage device 222 of the server device 12 shown in FIG.

  By configuring like this, not only the title for the estimated destination but also its reliability is displayed on the screen, and it seems that the user actually adhered to the schedule when generating the title for the estimated destination itself The schedule information can be trusted, and the schedule information for which the trust is obtained can be used as a title for the estimated destination estimated by the destination estimation unit 108. Therefore, by using schedule information that is highly likely to be observed, that is, with high reliability, as the title, the title is more accurate and generates a title that is more intuitive for the user. Thus, the estimated destination can be presented in the form given to the guide information.

<Method of judging reliability>
Next, a method of determining “reliability” by the reliability determination unit 105 will be further described.

  In the reliability determination unit 105, for example, the following method is used as a method of determining the reliability of whether or not the schedule information is suitable as a title.

(1) Judgment based on the degree of coincidence of places The degree of coincidence between the estimated destination and the place (the holding place) in the schedule information is verified.

(2) Judgment based on the degree of coincidence of stay time The stay time estimated from the arrival date / time and departure date / time at the arrival location of the travel history (movement history) matches the holding time obtained from the start date / time and end date / time in the schedule information. Verify the degree.

(3) Judgment based on accompanying information of schedule information Organizer and participant attributes (mandatory participation, optional participation) and importance set in schedule information itself, schedule attributes (periodic items, individual items), presence / absence of participation statement Consider incidental information such as

(4) Judgment based on similarity between a plurality of schedules of the user having information on the same venue as the arrival place included in the past movement history of the moving object related to the user recorded in the movement history recording unit 107 When a plurality of the schedule information exists in the schedule database 103, the entire information constituting each schedule information is analyzed, and the reliability is determined based on the similarity between the schedule information.

  Below, the specific example is individually demonstrated about the determination method of each reliability.

(1) Judgment based on the degree of coincidence of locations First, the case where the reliability is judged by verifying the degree of coincidence between the estimated destination and the location in the schedule information will be described.

  In the travel history data (movement history data) recorded in the travel history recording unit 107, generally, the position when the engine is stopped at a location that matches the destination desired by the user is recorded as the arrival date and time and the arrival location. Yes. Therefore, when the degree of coincidence between the position information when the engine is stopped (that is, the arrival location) and the location information of the schedule information set at the same date and time as the arrival date and time is high (that is, the same character string is included in both text information) It matches the location information of the schedule information that is set within a predetermined allowable time from the arrival date and time (for example, the start date and time within 15 minutes before and after the arrival date and time) from the arrival date and time If the degree is high, it is assumed that the schedule information is likely to be observed.

  The verification process is as follows. First, schedule information of the same time zone (same date and time or within the allowable time) as the arrival date and time at the arrival place in the travel history data (movement history data) obtained from the travel history recording unit 107 is obtained from the schedule database 103. The facility-related information recorded in the schedule information, that is, the facility name and address name information indicating the venue is extracted. Thereafter, the degree of coincidence between the information related to the location of the arrival place recorded in the movement history recording unit 107 and the facility related information extracted from the schedule information is determined. If it is determined that the degree of coincidence between the two is high, it is determined that the schedule information has a high possibility of being observed by the user, and the reliability as the schedule information used for the title is determined to be high. .

  Note that if location data is recorded in the “holding place” of the schedule information in the schedule database 103 in FIG. 8, the location data can be used as facility-related information. Furthermore, even if it is other than “location”, if the address or company name is included in, for example, the signature part of the “supplemental information” supplemented as schedule information, the address or company name of the signature part Can also be used as facility-related information.

  The determination based on the degree of coincidence of the places is an effective determination process when information (location name, facility name, etc.) regarding the location of the destination desired by the user is set in the past movement history as the movement history recording unit 107. In such a case, the reliability is determined from the determination result of the degree of coincidence between the facility related information extracted from the schedule information and the destination information estimated from the movement history. Therefore, it is possible to evaluate whether or not the schedule information is observed as the actual user action history using the degree of coincidence of the information about the place, and whether or not the possibility of the compliance is high Can be output together with it, or the title can be generated using schedule information that is likely to be observed, so the title given to the guide information is more reliable and the user It can be a highly intuitive title.

  Furthermore, for example, the facility-related information is not limited to information related to a place such as the aforementioned facility name and address name, that is, holding location information, but is included in the address book and schedule information recorded in the center server 12. Using the address information, phone number, homepage address, email address of the organizer and participants, and the address information, phone number, homepage address, email address of the other party included in the signature field of the supplementary information of the schedule information, It is also possible to determine the organizer and the other party from the search engine and the like, and extract the company name (facility name) and address name indicating the venue, that is, the venue.

  Therefore, as facility-related information, not only information on the venue included in the schedule information, but also organizer / participant address information, telephone number, homepage address, e-mail address, address included in the signature column, telephone number, By using at least one of the information on the homepage address and e-mail address to obtain the facility name or address name, the facility name and address name can be appropriately extracted from the schedule information. From the collation result with the destination in the movement history, whether or not the schedule information is observed can be evaluated based on a wider range of information.

  In the case where the venue location related to the schedule information is extracted as facility-related information using at least one of the information as described above, the reliability determination unit 105 uses the extracted venue location as a title. In order to determine whether or not the reliability is high, the venue may be converted into latitude and longitude information. That is, when the information such as the facility name is not attached as the arrival place of the movement history and only the latitude / longitude information is transferred from the navigation device 13, the reliability determination unit 105 uses the latitude / longitude information to You may make it perform evaluation of a degree.

  As a method for converting the venue location into latitude / longitude information, a method called “geocoding”, which has become widespread in recent years, can be used. “Geocoding” is a technique for mutually converting facility names, address information and latitude / longitude information arranged on a map, and is realized by holding each other's correspondence as a database.

  When the facility name or address information of the venue is extracted from the schedule information as the facility-related information in the reliability determination unit 105, “geocoding” is applied to convert the information about the venue into latitude and longitude information. Then, the converted latitude / longitude information is compared with the latitude / longitude information of the arrival place of the movement history obtained from the navigation device 13, and the reliability is determined by the degree of proximity. As an evaluation measure of the degree of proximity, for example, if the positional relationship between the two is within 5 km or within the same town, a high reliability is set, the schedule information is trusted, and used for title generation. When the user is outside the 10 km area or does not exist in the same city, a process such as setting a low reliability and not using the schedule information for title generation may be performed.

  When the navigation device 13 performs “geocoding” and records the movement history, the latitude and longitude information of the departure place and the arrival place recorded as the movement history data is converted into the facility name and address information. In addition, it may be configured to record the movement history data in the movement history recording unit 107, or when the recorded past movement history data is transferred to the center server 12 side in order to collate with the schedule information, You may comprise so that the latitude longitude information of the arrival place of the past movement history data may be converted into a facility name and address information, and may be transferred.

  Further, for example, “geocoding” can be implemented in an interface for setting a venue, which is provided as an interface with a user on the client terminal 11 side. That is, when a user inputs a holding location to the client terminal 11 in order to register schedule information, a point indicating the holding location on the map displayed on the screen is clicked, for example, to perform “geocoding”. It is also possible to operate and output the latitude and longitude information of the venue together with the venue, and transfer the output result to the center server 12A.

  Therefore, when “geocoding” is implemented in the interface on the client terminal 11 side, the schedule database 103 of the center server 12A stores the latitude / longitude information of the venue in addition to the venue from the beginning. Therefore, when the latitude / longitude information is transferred from the navigation device 13 as the arrival location of the movement history data, it is possible to efficiently perform the matching process between the two.

(2) Judgment by degree of coincidence of stay time Next, by verifying the coincidence between the stay time estimated from the travel history (movement history) and the holding time in the schedule information corresponding to the estimated destination, A case where the degree is determined will be described.

  The movement history data recorded in the movement history recording unit 107 of the navigation device 13 records the data of the departure point and the arrival point together with, for example, the start / stop date / time of the engine (departure date / arrival date) as described above. is doing. Therefore, the stay time at the destination determined from the engine stop date / time in the previous travel history at a certain date / time, that is, the arrival date / time at the destination, and the engine start date / time in the next travel history, ie, the departure date / time from the destination, Schedule that matches with the schedule time of the schedule information of the date / time to be performed or set within a predetermined allowable time (for example, start date / time and end date / time within 15 minutes before and after arrival date / time and departure date / time) In the case of information, the schedule information can be regarded as having a high possibility of being observed. Therefore, the higher the reliability, the higher the degree of coincidence with the stay time, the more the schedule information that matches the stay time obtained from such travel history data, or the schedule information having the date and time within the allowable time is set. The lower the schedule information, the lower the reliability.

(3) Judgment based on accompanying information of schedule information Next, the reliability is judged by considering accompanying information such as organizer and participant attributes, importance, presence / absence of participation set in schedule information The case where it does is demonstrated.

  As in the schedule information shown in the schedule database 103 in FIG. 8, the schedule information includes information such as an organizer, required participants, optional participants, schedule importance, and the user's own participation expression as “schedule attribute information”. Can be included. The reliability can be determined to some extent by this “schedule attribute information”. For example, as described below, it is possible to discriminate the degree of adherence to the schedule based on the “schedule attribute information” and classify the level of reliability.

  (A) There is a higher possibility of observance when the importance of the schedule is higher than when the importance of the schedule is low.

  (B) The more likely it is to include a repetitive attribute (an attribute having periodicity) that the schedule is held repeatedly, the higher the possibility of complying.

  (C) In the case of a schedule in which the user is the organizer, there is a higher possibility of complying when participating, than when no other participant exists.

  (D) In the case of a schedule in which the user is not the organizer, the possibility that the organizer is in a different organization is higher than the case in which the organizer is in the same organization.

  (E) In the case of a schedule in which the user is not the organizer, there is a higher possibility that the case where the user is an essential attendee will comply than the case where the user is an optional attendee.

  (F) There is a higher possibility that the case of “attendance expression” will be observed than the case of “provisional attendance expression” or “unrepresentation”.

  As described above, the compliance possibility divided into levels based on the “schedule attribute information” is converted into a reliability parameter value using a predetermined reference value. In addition, when the reliability is evaluated by combining a plurality of conditions regarding the compliance possibility divided into levels, that is, information constituting the “schedule attribute information”, it is desirable to perform weighted addition. Here, with regard to the weight in the case of weighted addition, for example, by creating data that records the compliance status of the schedule for a certain period using subjects, etc., and performing learning that optimally reflects the actual compliance rate It is desirable to use a method such as adjustment according to

  Further, the client terminal 11 may be provided with a mechanism that makes it possible to check whether or not the schedule information has been observed after the mobile product is shipped. Alternatively, the navigation device 13 may have a mechanism after the mobile product is shipped. In this case, when the estimated destination is presented with a title, feedback data is obtained by providing a mechanism that allows the user to deny or correct the presentation content of the title. May be. Re-learning based on the acquired feedback data and adopting a mechanism that optimizes the parameter value of reliability for each user can further improve the accuracy of the index as reliability. it can.

(4) Judgment by similarity between multiple schedule information Next, it has information on the same venue as the arrival place included in the past movement history of the moving body related to the user recorded in the movement history recording unit 107 When a plurality of the schedule information of the user exists in the schedule database 103, the entire information constituting each of the plurality of schedule information is analyzed, and the reliability is determined based on the similarity between the schedule information. The case will be described.

  When there are multiple schedule information that has the same venue as the destination in the travel history, at least the schedule title, venue, date / time, organizer, participant, event content that constitutes each of the schedule information In one or more pieces of information, there is a high possibility that information that matches between schedule information and information that does not match are mixed, so the degree of match between pieces of information constituting each schedule information is determined. Here, the degree of coincidence between pieces of information is, for example, the degree of overlapping of participants, the degree of coincidence of titles, and the like, and if they are semantically identical, they are regarded as being coincident. For example, the degree of coincidence between pieces of information constituting each schedule information is uniformly analyzed, and among the plurality of groups obtained as a result of classifying the schedule information group based on the degree of coincidence between pieces of information, For the schedule information of a group having a large number of affiliation schedules, a higher reliability may be set as a schedule information group having a high degree of similarity.

  The title complementing unit 104 of the center server 12A can set the title by referring to the schedule information with reliability obtained by the reliability determining unit 105 as described above. For example, a title may be generated using only schedule information whose reliability is higher than a predetermined value set in advance, and the generated title may be added to the guide information together with the reliability and presented to the user. it can.

  As described above, the reliability determination unit 105 uses the configuration for determining the reliability from the degree of coincidence between the facility related information extracted from the schedule information and the destination information estimated from the movement history. Evaluate whether the user himself / herself complied with the schedule information based on the actual travel history, and set the reliability higher for the schedule information that is more likely to be observed by the user, so use the highly reliable schedule information. As the title generated in this way becomes more accurate, it is possible to present an estimated destination with a title that is more intuitive to the user.

  Here, the facility-related information is included in the schedule information, the venue location, organizer and participant address information, phone number, homepage address, email address, or the address, phone number, and homepage included in the email signature column. A wider range of information can be used by using a configuration that detects the name of the facility or the location of the facility using the extracted facility-related information. Thus, the name of the facility and the location of the facility can be appropriately extracted from the schedule information, and it can be more reliably evaluated whether or not the schedule has been observed.

  In addition, the reliability determination unit 105 calculates the reliability in view of the holding time (start date / time, end date / time) extracted from the schedule information and the actual stay time (arrival date / time, departure date / time) calculated from the travel history. By using the configuration, it is possible to reliably determine whether or not the user himself / herself has complied with the schedule according to the level of reliability in view of the actual movement history of the user, and improve the accuracy of the title. be able to.

  Further, the reliability determination unit 105 determines whether the schedule sender (host) is the user himself / herself, whether the schedule participant is only the user himself / herself, or the schedule participant. Whether a person of another organization is included, whether the schedule includes a repeat attribute (attribute having periodicity), whether the participation request level of the schedule is essential, or A configuration is used in which the reliability of the schedule information is determined using at least one of the “schedule attribute information” such as whether or not the participation expression state of the user of the schedule is participation. Thus, it is possible to easily determine whether the user himself / herself complies with the schedule, and the accuracy of the title can be improved.

  Further, the reliability determination unit 105 includes the schedule of the user having the same location information as the arrival place included in the past movement history of the moving object related to the user recorded in the movement history recording unit 107. When a plurality of pieces of information are present in the schedule database 103, each configuration of the schedule information is performed by using a configuration for determining the reliability based on the similarity between a plurality of pieces of schedule information serving as the same venue. It can be determined that the schedule information having much of the same information and having a higher degree of similarity is more likely to comply with the schedule information, and the accuracy of the title can be improved.

  Here, as the degree of similarity between schedule information, evaluation is performed based on the degree of coincidence of at least one of the information related to the title, venue, date and time, organizer, participant, and event contents of each schedule. By using this configuration, the similarity between schedule information can be comprehensively compared, and similar schedule information can be extracted more appropriately.

  The reliability determination unit 105 receives not only the movement history information recorded in the movement history recording unit 107 but also information about the estimated destination estimated by the destination estimation unit 8 as shown in FIG. Thus, when determining the reliability of the schedule information, the reliability may be determined by extracting the schedule information related to the received estimated destination.

  In addition, when the reliability of the schedule information used for the title is presented to the user as guide information, a cylindrical graph or the like that allows the user to easily understand the degree of reliability of the title as shown in FIG. It may be displayed as an included icon, or a method such as presenting a numerical value indicating the degree of reliability of the title may be employed. Whether or not the title uses schedule information may be displayed with a schedule icon as shown in FIG. 9 so that the user can easily discriminate it.

  In addition, different titles will be generated in consideration of the reliability of schedule information, and simple titles such as only the title of schedule information will be assigned to titles generated using schedule information with high reliability. The title generated using schedule information with a medium degree of reliability may be further given an address or facility name acquired from the map information by the navigation device 13. On the other hand, for schedule information with low reliability, the navigation device 13 may display the address and facility name acquired from the map information as the title, and give the title obtained from the schedule information by parentheses or the like. When the schedule information that is a candidate corresponding to the title does not exist in the schedule database 103, only the address and facility name acquired from the map information may be displayed as the title.

  That is, the title complementing unit 104 generates and displays only the title of the schedule information as the title according to the reliability determination result determined by the reliability determination unit 105, the title of the schedule information, and the venue location information ( Both address information and facility name) are generated and displayed as titles, and the title of schedule information is generated and displayed as titles in place information (address information and facility names) acquired from map information. When the reliability of the schedule information is high by using a configuration that switches between the format and the format that generates and displays only the location information (address information and facility name) obtained from the map information as the title, a concise title Even if the reliability of the schedule is insufficient, the title should be supplemented with supplementary information. There can be imparted to the title.

1 is a system configuration diagram showing a system configuration of a first embodiment of a navigation system according to the present invention. It is a system configuration | structure figure which shows the system configuration different from FIG. 1 of the navigation system by this invention. It is a system configuration | structure figure which shows the system configuration | structure different from FIG. 1 of the navigation system by this invention further. It is a system configuration | structure figure which shows the system configuration | structure different from FIG. 1 of the navigation system by this invention further. It is a system configuration | structure figure which shows the system configuration | structure different from FIG. 1 of the navigation system by this invention further. It is an apparatus block diagram which shows an example of the specific apparatus structure for implement | achieving the basic function in each apparatus in the navigation system of FIG. It is a schematic diagram which shows an example of the user interface in the schedule information input / output part of a client terminal. It is a data block diagram which shows an example of the schedule data recorded on a schedule database. It is a screen figure which shows an example at the time of displaying the navigation information to an estimated destination (candidate destination) as guide information with a title in a navigation apparatus. It is a flowchart which shows an example of a series of processing procedures until title production | generation in the navigation system by this invention. It is a system configuration | structure figure which shows the system configuration | structure of 2nd Embodiment of the navigation system by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Client terminal, 12 ... Center server (schedule server), 13 ... Navigation apparatus, 31 ... Schedule input screen, 32 ... Schedule list display screen, 101 ... Schedule information input / output part, 102 ... Schedule server, 103 ... Schedule database, DESCRIPTION OF SYMBOLS 104 ... Title complement part, 105 ... Reliability determination part, 106 ... Navigation part, 107 ... Movement history recording part, 108 ... Destination estimation part, 211 ... Input device, 212 ... Arithmetic unit, 213 ... Storage device, 214 ... Output Device, 231 ... Input device, 232 ... Calculation device, 233 ... Storage device, 234 ... Output device, 321 ... Product explanation meeting, 322 ... Dentist, 323 ... Meeting company C, 324 ... Monthly report meeting, 325 ... 2111 ... Keyboard, 2112 ... Touchpad, 2141 ... Display, 2142 ... Speaker, 2311 ... Touch panel, 2312 ... Switch, 2313 ... Microphone, 2341 ... Display, 2342 ... Speaker, D53, D55, D57 ... Schedule icon, D54, D56, D58 ... Destination candidate, P50 ... Point (vehicle) Position), P51, P52, P53 ... point (estimated destination), R51, R52, R53 ... route.

Claims (25)

  A navigation device that is mounted on a mobile body and presents a route to a destination as guide information to a user; and a schedule server that manages the user's schedule information. The navigation device and the schedule server cooperate with each other. A navigation system that generates and outputs the guide information to be presented to a user, the navigation device including a movement history recording unit that records a movement history of a moving object related to the user, and a movement history recording unit. A destination estimation unit that estimates a destination of the user as an estimated destination based on the past movement history of the moving object relating to the recorded user, and the schedule server stores the schedule information of the user. A schedule database to be recorded and a profit transferred from the navigation device; For generating a title for the estimated destination and assigning it to the guide information based on the past movement history of the moving body related to the user and the past schedule information of the user extracted from the schedule database A navigation system comprising at least a title completion unit that outputs as complement data.   At least a navigation device that is mounted on a mobile body and presents a route to a destination as guide information to a user, and a schedule server that manages a user's schedule, and the navigation device and the schedule server cooperate with each other. A navigation system that generates and outputs the guide information to be presented to a user, wherein the navigation device records a movement history recording unit that records a movement history of the moving body related to the user, and records the movement information in the movement history recording unit. Based on the past movement history of the moving body related to the user, the destination estimation unit that estimates the destination of the user as the estimated destination, the past movement history of the moving body related to the user, and the schedule server Based on the user's past schedule information to be transferred to the estimated destination A title completion unit that generates a title and outputs it as supplemental data to be added to the guide information, and the schedule server includes at least a schedule database that records user schedule information. And navigation system.   3. The navigation system according to claim 1, further comprising a client terminal for inputting user schedule information, wherein the schedule server records the user schedule information transferred from the client terminal in the schedule database. A navigation system characterized by   A navigation device that is mounted on a moving body and presents a route to a destination as guide information to a user; and a client terminal that inputs the user's schedule information. The navigation device and the client terminal cooperate with each other. A navigation system that generates and outputs the guide information to be presented to a user, the navigation device including a movement history recording unit that records a movement history of a moving object related to the user, and a movement history recording unit. Based on the recorded past movement history of the mobile object related to the user, the destination estimation unit that estimates the destination of the user as the estimated destination, the movement history of the mobile object related to the user, and the client terminal The title for the estimated destination based on the user's past schedule information to be transferred It includes at least a title completion unit that generates and outputs as complementary data to be added to the guide information, and the client terminal includes at least a schedule database that records input user schedule information. Navigation system.   A navigation device that is mounted on a moving body and presents a route to a destination as guide information to a user; and a client terminal that inputs the user's schedule information. The navigation device and the client terminal cooperate with each other. The navigation system generates and outputs the guide information to be presented to the user, and the navigation device is transferred from the movement history recording unit that records the movement history of the moving body related to the user and the client terminal. A destination that estimates a destination of the user as an estimated destination based on a schedule database that records the user's schedule information and a past movement history of the moving object related to the user recorded in the movement history recording unit The estimation unit, the movement history of the moving object related to the user, and the user's And schedule information to, based on, the navigation system characterized in that it comprises at least the title complementary unit for outputting as a complementary data for applying to said guide information to generate the title for the estimated destination.   A navigation device that is mounted on a moving body and presents a route to a destination as guide information to a user; and a client terminal that inputs the user's schedule information. The navigation device and the client terminal cooperate with each other. A navigation system that generates and outputs the guide information to be presented to a user, the navigation device including a movement history recording unit that records a movement history of a moving object related to the user, and a movement history recording unit. A destination estimation unit that estimates the destination of the user as an estimated destination based on the past movement history of the mobile object related to the recorded user, and the client terminal receives the input user's A schedule database for recording schedule information and transferred from the navigation device; A title to be generated as supplementary data for generating a title for the estimated destination based on the past movement history of the moving body related to the user and the past schedule information of the user and giving it to the guide information A navigation system comprising at least a complement.   The navigation system according to any one of claims 1 to 6, wherein the user's schedule information recorded in the schedule database relates to a schedule title, a venue, a date and time, an organizer, a participant, or event contents. The information is composed of information including at least one of the information, and the title complementing unit includes information including at least one of the information constituting the schedule information of the user, and the movement history. A navigation system, wherein a title for the estimated destination is generated based on corresponding information in a past movement history of a moving object related to the user recorded in a recording unit.   8. The navigation system according to claim 7, wherein the title complementing unit includes information indicating a place of the information included in the schedule information of the user and the user recorded in the movement history recording unit. A navigation system for generating a title for the estimated destination based on information on a place indicating the destination among past movement histories of the moving body.   8. The navigation system according to claim 7, wherein the title complementing unit includes at least information indicating a start date and time among the information constituting the schedule information of the user and the usage recorded in the movement history recording unit. A navigation system for generating a title for the estimated destination based on at least information indicating the date and time of arrival at the destination among past movement histories of the moving body related to the person, and adding the title to the guide information .   The navigation system according to any one of claims 1 to 9, wherein the title complementing unit is the same as an arrival place included in a past movement history of a moving body related to a user recorded in the movement history recording unit. When it is detected that a plurality of the schedule information of the user having the information on the venue is recorded in the schedule database, a plurality of the schedule information having the information on the same venue are determined according to a predetermined rule. A navigation system, wherein a title for the estimated destination is generated using information integrated based on the information.   The navigation system according to claim 10, wherein the title complementing unit obtains information on a venue that is the same as an arrival place included in a past movement history of a moving body related to a user recorded in the movement history recording unit. When it is detected that a plurality of the schedule information of the user has been recorded in the schedule database, the degree of similarity between the plurality of schedule information having the same venue information as the predetermined rule And generating a title for the estimated destination using information obtained by integrating a plurality of the schedule information.   The navigation system according to claim 11, wherein the title complementing unit indicates a similarity between a plurality of the schedule information, a title of a schedule constituting the schedule information, a venue, a date and time, an organizer, a participant, Or the navigation system characterized by setting by evaluating the coincidence degree of each information including at least one or more pieces of information related to event contents.   The navigation system according to any one of claims 10 to 12, wherein the title complementing unit is the same as an arrival place included in a past movement history of a moving object related to a user recorded in the movement history recording unit. When it is detected that a plurality of the schedule information of the user having the information on the venue is recorded in the schedule database, the plurality of schedules having the information on the same venue as the predetermined rule. A navigation system characterized in that a title for the estimated destination is generated using information obtained by integrating a plurality of schedule information based on freshness of each information.   14. The navigation system according to claim 13, wherein the title complementing unit sets the freshness of each of the plurality of schedule information by evaluating the creation date / time of the schedule information or the elapsed time from the date / time of the schedule information. And navigation system.   15. The navigation system according to any one of claims 1 to 14, wherein a past movement history of a moving object related to a user recorded in the movement history recording unit, and a past schedule of the user recorded in the schedule database. A reliability determination unit that evaluates the reliability of each of the schedule information based on the degree of coincidence with the information is further provided in either the schedule server, the navigation device, or the client terminal, and the title complementing unit includes: A navigation system, wherein a title for the estimated destination is generated in consideration of a determination result related to the reliability of the schedule information determined by the reliability determination unit.   16. The navigation system according to claim 15, wherein the title complementing unit displays both the generated title for the estimated destination and the determination result of the reliability of the schedule information by the reliability determination unit, as the guide information. A navigation system characterized in that it is output as complementary data to be given to the user.   The navigation system according to claim 15 or 16, wherein the reliability determination unit includes facility-related information included as information indicating a location in any of the pieces of information constituting the schedule information of a user, The reliability of each of the schedule information is determined based on the degree of coincidence with the information about the location included in the past movement history of the moving object related to the user recorded in the movement history recording unit. Navigation system.   18. The navigation system according to claim 17, wherein the facility-related information includes information on a schedule location, an organizer or a participant's address information, a telephone number, a homepage address, and an e-mail address among the information constituting the schedule information. A navigation system characterized by being extracted from at least one piece of information.   The navigation system according to claim 15 or 16, wherein the reliability determination unit includes information on a start date / time and an end date / time of a schedule among the information constituting the schedule information of the user, and the movement history recording unit. Based on the degree of coincidence between the date and time of arrival at the destination and the information about the date and time of departure from the destination included in the past movement history of the moving body related to the user, the reliability of each of the schedule information A navigation system characterized by determining the degree.   The navigation system according to claim 15 or 16, wherein the reliability determination unit determines whether or not the schedule organizer is the user himself / herself to whom the guide information is presented, for each of the schedule information, or a schedule. Whether the participants are only the user who is presented with the guide information, whether the participants in the schedule include persons from different organizations, or the schedule is held repeatedly Whether or not a request for participation in the schedule is mandatory for the user himself / herself who is presented with the guide information, or an expression of participation in the schedule is Based on at least one judgment result of whether or not the guide information is presented by the user himself / herself , Navigation system and judging the reliability of each of the schedule information.   17. The navigation system according to claim 15, wherein the reliability determination unit is the same venue as an arrival place included in a past movement history of a moving body related to a user recorded in the movement history recording unit. If it is detected that a plurality of the schedule information of the user having the information is recorded in the schedule database, based on the similarity between the plurality of schedule information having the same venue information, A navigation system, wherein the reliability of each of the schedule information is determined.   The navigation system according to claim 21, wherein the reliability determination unit evaluates the similarity between the schedule information, the title of the schedule that configures the schedule information of the user, the venue, the date and time of the organizer A navigation system characterized by evaluating the degree of similarity between the schedule information based on the degree of coincidence between at least one piece of information among the information on the person, the participant, and the event content.   The navigation system according to any one of claims 15 to 22, wherein the title complementing unit determines only the title of the schedule information according to a determination result of the reliability of the schedule information by the reliability determination unit. A format for generating a title for the location, a format for generating both the title of the schedule information and the facility name or address information obtained from the schedule information or the map information as a title for the estimated destination, and the map information. A navigation system that switches to any one of a format that generates only facility name or address information as a title for the estimated destination.   In a navigation device that is mounted on a moving body and presents a route to a destination as guide information to a user, a movement history recording unit that records the movement history of the moving body related to the user, and a use recorded in the movement history recording unit A destination estimation unit that estimates the destination of the user as an estimated destination based on a past movement history of the moving body related to the user, a past movement history of the moving body related to the user, and a past schedule of the user And a title complement unit that generates a title for the estimated destination based on the information and assigns the title to the guide information.   In a navigation method in which a route to a destination mounted on a mobile object is presented to a user as guide information, the destination of the user is estimated as an estimated destination based on the past movement history of the mobile object related to the user, And generating a title for the estimated destination based on the past movement history of the moving body related to the user and the past schedule information of the user, and assigning and outputting the title to the guide information. A featured navigation method.

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