JP2021139854A - User information detection system, user information detection device, and computer program - Google Patents

Abstract

To provide a user information detection system, a user information detection device, and a computer program capable of accurately detecting a POI familiar to a user.SOLUTION: A user detection system is configured so that a history of position information of a user is acquired, an area familiar to the user is detected on the basis of the history of the acquired position information of the user, a POI existing in an area familiar to the user and the detected area is further detected as a POI familiar to the user, and movement guidance to the user is performed using the POI familiar to the detected user.SELECTED DRAWING: Figure 5

Description

The present invention relates to a user information detection system, a user information detection device, and a computer program that detect user information in order to provide more appropriate information to the user.

Conventionally, as one of the support for the user who gets on the vehicle, when the user inputs the desired destination, the guidance route from the departure point to the destination is set, and the guidance target point (turning left or right, etc.) is the target of guidance. For example, when approaching a guide intersection), the user is surely guided to a desired destination by providing guidance using voice or a display screen. In recent years, some of the above functions are also provided in mobile phones, smartphones, tablet terminals, personal computers, etc., in addition to navigation devices that are in-vehicle devices. Furthermore, it is also possible to provide the above guidance for pedestrians and motorcycles in addition to vehicles.

Here, for example, when guiding a right or left turn at a guidance intersection, it is important for the user to accurately identify the guidance intersection. Therefore, conventionally, guidance has been performed using facilities, structures, etc. that serve as landmarks at guidance intersections. When guiding a guide intersection using such a mark, it is important that the user can accurately identify the guided mark in the actual scene. Therefore, for example, in Japanese Patent Application Laid-Open No. 2015-36619, when selecting a mark to be used for guiding a guide intersection, priority is given to a POI that does not have a similar POI (point of interest) on the route to the guide intersection. Describes the technique to be selected as.

JP-A-2015-36619 (pages 8-10)

Here, Patent Document 1 is a technique for excluding POIs having similar POIs nearby from the candidates for landmarks so that the POIs guided as landmarks by the user can be accurately identified in the actual scene. , Even if a similar POI does not exist nearby, the user-guided POI may not be able to be identified in the actual scene. Such a case corresponds to a situation in which the user does not understand the guided POI, that is, does not know the guided POI.

In order to prevent such a situation from occurring, it is important for the guiding device side to know in advance the POI familiar to the user (that is, the POI familiar to the user, the POI recognized by the user). .. However, the above-mentioned Patent Document 1 does not have a means for grasping the POI familiar to the user on the device side, and there is a problem that appropriate guidance cannot be performed.

The present invention has been made to solve the above-mentioned conventional problems, and provides a user information detection system, a user information detection device, and a computer program capable of accurately detecting a POI familiar to a user. The purpose is.

In order to achieve the above object, the user information detection system according to the present invention is familiar to the user based on the history acquisition means for acquiring the history of the user's position information and the history of the user's position information acquired by the history acquisition means. It has an area detecting means for detecting an area with a certain area, and a point detecting means for detecting an area familiar to the user by the area detecting means and a POI existing in the detected area as a POI familiar to the user. ..
Note that "POI" is an abbreviation for point of interest, and includes not only facilities but also artificial structures and natural objects as long as they can be landmarks.
Further, the "area familiar to the user, POI" corresponds to an area or POI that the user is familiar with (knowledgeable), or an area or POI that the user is aware of.

Further, the user information detection device according to the present invention provides an area familiar to the user based on the history acquisition means for acquiring the history of the user's position information and the history of the user's position information acquired by the history acquisition means. It has an area detecting means for detecting, an area familiar to the user by the area detecting means, and a point detecting means for detecting the POI existing in the detected area as the POI familiar to the user.

Further, the computer program according to the present invention is a computer program that detects POI that is familiar to the user. Specifically, the computer detects an area familiar to the user based on the history acquisition means for acquiring the history of the user's position information and the history of the user's position information acquired by the history acquisition means. It functions as a means and a point detecting means for detecting an area familiar to the user and a POI existing in the area detected by the area detecting means as a POI familiar to the user.

According to the user information detection system, the user information detection device, and the computer program according to the present invention having the above-described configuration, it is possible to accurately detect the POI familiar to the user by acquiring the history of the user's position information. It becomes. Then, by grasping the POI familiar to the user on the device side, for example, when the movement guidance of the user is performed using the mark, the POI that the user does not understand or the POI that the user does not know is adopted as the mark. It is possible to prevent the user from being able to accurately identify the POI guided as a mark in the actual scene.

It is a schematic block diagram which showed the vehicle state detection system which concerns on this embodiment. It is a block diagram which showed the structure of the vehicle state detection system which concerns on this embodiment. It is a figure which showed an example of the probe information stored in the probe information DB. It is a figure which showed an example of the position history information stored in the position history DB. It is a figure which showed an example of the familiar POI information stored in the familiar POI information DB. It is a block diagram which shows typically the control system of the navigation device which concerns on this embodiment. It is a flowchart of the user information detection processing program which concerns on this embodiment. It is a flowchart of the area determination processing program which concerns on this embodiment. It is a flowchart of the movement guidance processing program which concerns on this embodiment. It is a figure which showed an example of the landmark guidance at a guide intersection. It is a figure which showed the example which changes the mark to POI which is familiar to a user. It is a figure which showed an example of the mark guidance at a guide intersection using POI which is familiar to a user as a mark.

Hereinafter, the user information detection system according to the present invention will be described in detail with reference to the drawings based on a specific embodiment. First, the schematic configuration of the user information detection system 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic configuration diagram showing a user information detection system 1 according to the present embodiment. FIG. 2 is a block diagram showing the configuration of the user information detection system 1 according to the present embodiment.

As shown in FIG. 1, the user information detection system 1 according to the present embodiment includes a server device (user information detection device) 3 included in the probe center 2 and a navigation device which is a communication (guidance) terminal mounted on the vehicle 4. It basically has 5. Further, the server device 3 and the navigation device 5 are configured to be able to send and receive electronic data to and from each other via the communication network 6. Instead of the navigation device 5, for example, another vehicle-mounted device included in the vehicle 4 or a vehicle control ECU for controlling the vehicle 4 may be used. Further, as described later, a communication terminal other than the navigation device (for example, a mobile phone, a smartphone, a tablet terminal, a personal computer, etc.) is further included in the user information detection system 1 as a target for providing the information generated by the server device 3. You may.

Here, the user information detection system 1 according to the present embodiment constitutes a so-called probe car system. Here, the probe car system is a system that collects information using the vehicle 4 as a sensor. Specifically, the vehicle 4 transmits speed data, steering operation, shift position, and other operating conditions of each system to the probe center 2 together with GPS position information via a communication device mounted on the vehicle 4 in advance. A system that reuses the collected data as various information on the center side.

Then, the server device 3 provided in the probe center 2 appropriately collects and accumulates probe information (material information) including the current time and traveling information from each vehicle 4 traveling nationwide, and various types from the accumulated probe information. Support information (for example, areas and POIs familiar to users, accident information, congestion information, travel time, etc.) is generated, and the generated support information is distributed to the navigation device 5, and various processes using the support information are performed. It is an information management server that performs In particular, in the present embodiment, the server device 3 collects the position information of the vehicle 4, the orientation information of the vehicle 4, the information on the behavior of the vehicle 4 when the vehicle is running or stopped, and the like from each vehicle 4, and aggregates the collected information. By doing so, the frequency of including the position information of the vehicle (that is, the user who gets on the vehicle) is calculated for each area (especially for each tertiary mesh in this embodiment), and the area familiar to the user is detected for each user. Further, the POI (point of interest) familiar to the user is also detected based on the area familiar to the user, and a DB in which the user and the POI familiar to the user are linked is generated. Further, the information specifying the POI familiar to the user is extracted from the DB and distributed to the vehicle on which the user located in the unfamiliar area is boarded.

On the other hand, the navigation device 5 is mounted on the vehicle 4 and displays a map around the position of the own vehicle based on the stored map data, displays the current position of the vehicle on the map image, and sets a guide route. It is an in-vehicle device that provides movement guidance along the route. Further, the navigation device 5 can perform the movement guidance using a landmark (landmark) particularly for the movement guidance, and further, when the server device 3 receives the information specifying the POI familiar to the user, the navigation device 5 can perform the movement guidance. , The movement guidance using the POI familiar to the user as a landmark using the received information is also performed. The details of the navigation device 5 will be described later.

In addition, the communication network 6 includes a large number of base stations located all over the country and a communication company that manages and controls each base station, and the base stations and communication companies are connected to each other by wire (optical fiber, ISDN, etc.) or wirelessly. It is configured by connecting. Here, the base station has a transceiver (transmitter / receiver) and an antenna for communicating with the navigation device 5. Then, while the base station performs wireless communication between the communication companies, it becomes the terminal of the communication network 6 and relays the communication of the navigation device 5 within the range (cell) of the radio wave of the base station to the server device 3. Has a role to play.

Subsequently, the configuration of the server device 3 included in the user information detection system 1 will be described in more detail with reference to FIG.

As shown in FIG. 2, the server device 3 includes a server control ECU 11, a probe information DB 12 as an information recording means connected to the server control ECU 11, a position history DB 13, a familiar POI information DB 14, and a server-side map DB 15. It basically has a center communication device 16.

The server control ECU 11 (electronic control unit) is an electronic control unit that controls the entire server device 3, and is used as a computing device, a CPU 21 as a control device, and a working memory when the CPU 21 performs various arithmetic processes. ROM23, ROM23 in which the user information detection processing program (see FIG. 7), the area determination processing program (FIG. 8), the movement guidance processing program (see FIG. 9), etc., which will be described later, are recorded in addition to the RAM 22 and the control program. It is provided with an internal storage device such as a flash memory 24 for storing a program read from. The server control ECU 11 has various means as a processing algorithm together with the ECU of the navigation device 5 described later. For example, the history acquisition means acquires the history of the user's location information. The area detecting means detects an area familiar to the user based on the history of the user's position information acquired by the history acquiring means. The point detecting means detects an area familiar to the user by the area detecting means and a POI existing in the detected area as a POI familiar to the user.

Further, the probe information DB 12 is a storage means for cumulatively storing probe information collected from each vehicle 4 traveling nationwide. In the present embodiment, the probe information collected from the vehicle 4 is particularly detected by (a) the date and time, (b) the mesh code of the tertiary mesh on which the vehicle 4 travels at that date and time, and (c) GPS. Includes latitude, (d) longitude detected by GPS, (e) vehicle speed of vehicle 4, and (f) yaw rate of vehicle 4.

However, the probe information does not necessarily include all the information related to the above (a) to (f), and information other than the above (a) to (f) (for example, traveling link, brake operation amount, acceleration, steering angle, etc.) The configuration may include a drive recorder image, etc.).

FIG. 3 is a diagram showing an example of probe information stored in the probe information DB 12. As shown in FIG. 3, the probe information includes a vehicle ID that identifies the source vehicle (corresponding to a user ID that identifies the user), information related to the above (a) to (f), and the like. For example, the probe information shown in FIG. 3 stores that the vehicle 4 (user) with the ID "A" is traveling at about 50 km in the mesh code "123abc". On the other hand, it is remembered that the vehicle 4 (user) with the ID "B" stopped at the latitude 43.1237 and the longitude 143.1237 within the mesh code "345def". Similarly, other probe information is also stored. In the example shown in FIG. 3, probe information is collected from the vehicle at intervals of 200 msec, but the interval of collecting probe information may be shorter or longer than the interval of 200 msec.

Further, the position history DB 13 is a storage means for cumulatively storing the probe statistical information generated by aggregating (statistics) the probe information stored in the probe information DB 12. In particular, in the present embodiment, by aggregating (statistics) the probe information, the information that aggregates the frequency of including the user's position information for each vehicle that is the source of the probe information, that is, for each user who gets on the vehicle is aggregated for each area. Generate. In this embodiment, the area unit to be aggregated is a tertiary mesh (1 km square) unit that divides the map information.

FIG. 4 is a diagram showing an example of information stored in the position history DB 13 (hereinafter, referred to as position history information). As shown in FIG. 4, the position history information stores the frequency of including the user's position information for each user and each area. The frequency of including the user's position information corresponds to the frequency of including the user's position specified by the probe information. For example, in the example shown in FIG. 4, among the probe information to be aggregated, the ID "A" It is shown that the number of probe information indicating that the vehicle 4 (user) of the vehicle 4 (user) is located in the mesh code “123abc” is 323567. It also shows that the number of probe information indicating that it is located in the mesh code "123bcd" is 43253. The same applies to other mesh codes. Therefore, in the example shown in FIG. 4, the vehicle 4 (user) with ID "A" is frequently located in the mesh code "123abc" and the mesh code "123efg", and it is expected that the vehicle 4 (user) is familiar with the corresponding area. can.

On the other hand, the familiar POI information DB 14 is a storage means for storing information (hereinafter, referred to as familiar POI information) associated with POI familiar to the user for each user. Here, the "POI familiar to the user" corresponds to a POI that the user is familiar with (knowledgeable) and a POI that the user is aware of, and is based on the position history information stored in the position history DB 13. Be identified. Details of the "POI familiar to the user" detection method will be described later. In addition, "POI familiar to the user" is associated with each genre (category). Furthermore, a plurality of POIs may be associated with one genre. The genre includes "convenience store", "cafe", "restaurant", "gas station", etc., but it may be a genre of a higher concept or a genre of a lower concept.

FIG. 5 is a diagram showing an example of familiar POI information stored in the familiar POI information DB 14. As shown in FIG. 5, the familiar POI information is stored in association with the POI familiar to the user for each user and each genre. For example, in the example shown in FIG. 5, it is shown that the “○○ store” is a familiar POI for the “convenience store” for the vehicle 4 (user) with the ID “A”. That is, the vehicle 4 (user) with ID "A" is familiar with the appearance and signboard of "○○ store" as a convenience store. For example, when "○○ store" is used as a mark for movement guidance, the user Can be easily identified in the actual scene. Similarly, for "cafe", "XX cafe" and "XX coffee shop" are familiar POIs, and for "restaurant", "XX restaurant" is a familiar POI.

Then, the server device 3 can grasp the area familiar to the user for each user by the position history information stored in the position history DB 13. Similarly, the familiar POI information stored in the familiar POI information DB 14 makes it possible for each user to grasp the POI familiar to the user. Then, when the movement guidance is performed in the vehicle, especially when the current position of the vehicle is located in an area unfamiliar to the user who is an occupant, the familiar POI information about the corresponding user is distributed to the navigation device 5. .. As a result, it becomes possible to perform movement guidance using POI, which is familiar to the user, as described later. Details will be described later.

On the other hand, the server-side map DB 15 is a storage means for storing server-side map information, which is the latest version of map information registered based on external input data and input operations. Here, the server-side map information is composed of various information necessary for route search, route guidance, and map display, including the road network. For example, network data including nodes and links indicating the road network, link data related to roads (links), node data related to node points, intersection data related to each intersection, point data related to points such as facilities, and map display for displaying a map. It consists of data, search data for searching a route, search data for searching a point, and the like. The map information is divided into mesh units (for example, primary mesh, secondary mesh, and tertiary mesh).

Further, as the point data, information on POI which is a departure place, a destination, a landmark (landmark) and the like is stored. For example, accommodation facilities such as hotels and inns, refueling facilities such as gas stations, commercial facilities such as shopping malls, supermarkets and shopping centers, entertainment facilities such as theme parks and game centers, restaurants, bars, restaurants such as taverns, and public facilities. Information on parking facilities such as parking lots, transportation facilities, religious facilities such as temples and churches, and public facilities such as museums and museums is applicable. In addition, the point data includes an identifier number, a name of the point, a genre of the point (“parking lot”, “post office”, “restaurant”, etc.), position coordinates indicating the position of the point, and the like for each point. Further, the point data is not limited to the facility as long as it can be used as a mark, and information on artificial structures and natural objects may be included.

Further, the center communication device 16 is a communication device for communicating with an external traffic information center such as a vehicle 4 or a VICS (registered trademark: Vehicle Information and Communication System) center via a communication network 6. In the present embodiment, probe information and POI information are transmitted to and received from each vehicle 4 via the center communication device 16.

Next, a schematic configuration of the navigation device 5 mounted on the vehicle 4 will be described with reference to FIG. FIG. 6 is a block diagram showing the navigation device 5 according to the present embodiment.

As shown in FIG. 6, the navigation device 5 according to the present embodiment includes a current position detection unit 31 that detects the current position of the vehicle on which the navigation device 5 is mounted, a data recording unit 32 in which various data are recorded, and a data recording unit 32. A navigation ECU 33 that performs various arithmetic processes based on the input information, an operation unit 34 that accepts operations from the user, a liquid crystal display 35 that displays a map around the vehicle, traffic information, etc. to the user, and a route. It has a speaker 36 that outputs voice guidance regarding guidance, a DVD drive 37 that reads a DVD as a storage medium, and a communication module 38 that communicates between an information center such as a probe center 2 or a VICS center. The navigation device 5 is also connected to various sensors and cameras mounted on the vehicle 4 via an in-vehicle network such as CAN. The sensor and camera mounted on the vehicle 4 include a vehicle speed sensor 39.

Hereinafter, each component of the navigation device 5 will be described in order.
The current position detection unit 31 includes a GPS 43, a yaw rate sensor 44, and the like, and can detect the current position, direction, and the like of the vehicle. Further, by acquiring the detection results of the vehicle speed sensor 39 and various sensors installed in other vehicles, it is possible to detect the current position, orientation, etc. of the current vehicle with higher accuracy.

Further, the data recording unit 32 reads a hard disk (not shown) as an external storage device and a recording medium, a map information DB 45, a travel history DB 46, a predetermined program, etc. recorded on the hard disk, and outputs predetermined data to the hard disk. It is equipped with a recording head (not shown) that is a driver for writing. The data recording unit 32 may be configured by a flash memory, a memory card, or an optical disk such as a CD or DVD instead of the hard disk. Further, the map information DB 45 and the travel history DB 46 may be stored in an external server and acquired by the navigation device 5 by communication.

Here, the map information DB 45 displays, for example, link data related to a road (link), node data related to a node point, search data used for processing related to route search or change, point data related to a point such as a facility, and a map. It is a storage means that stores map display data for the purpose, intersection data for each intersection, search data for searching a point, and the like.

Further, as the point data, information on POI such as a departure place, a destination, and a landmark (landmark) is stored as in the case of the server-side map information described above. In addition, the point data includes an identifier number, a name of the point, a genre of the point (“parking lot”, “post office”, “restaurant”, etc.), position coordinates indicating the position of the point, and the like for each point. Further, the point data is not limited to the facility as long as it can be used as a mark, and information on artificial structures and natural objects may be included.

Further, the travel history DB 46 is a storage means for accumulating and storing the vehicle behavior (travel information during travel) of the vehicle 4. In the present embodiment, the vehicle behavior stored in the travel history DB 46 includes the detection results of various sensors such as the vehicle speed sensor 39, the GPS 43, and the yaw rate sensor 44. The vehicle behavior stored in the travel history DB 46 is transmitted to the server device 3 as probe information at any time.

On the other hand, the navigation ECU (electronic control unit) 33 is an electronic control unit that controls the entire navigation device 5, and is a computing device, a CPU 51 as a control device, and a working memory when the CPU 51 performs various arithmetic processes. In addition to the RAM 52 that stores the route data when the route is searched, the control program, the area determination processing program (see FIG. 8) and the movement guidance processing program (see FIG. 9) described later. It is provided with an internal storage device such as a ROM 53 in which etc. are recorded and a flash memory 54 for storing a program read from the ROM 53. The navigation ECU 33 has various means as a processing algorithm. For example, the information providing means provides information to the user based on the detection result of the point detecting means.

The operation unit 34 is operated when inputting a starting point as a traveling start point and a destination as a traveling end point, and is composed of a plurality of operation switches (not shown) such as various keys and buttons. Then, the navigation ECU 33 controls to execute various corresponding operations based on the switch signals output by pressing each switch or the like. The operation unit 34 can also be configured by a touch panel provided on the front surface of the liquid crystal display 35. It can also be configured by a microphone and a voice recognition device.

In addition, the liquid crystal display 35 has a map image including roads, traffic information, operation guidance, operation menus, key guidance, guidance information along the guidance route (scheduled travel route), news, weather forecast, time, mail, and television. Programs etc. are displayed. Further, when the guide intersection approaches within a predetermined distance (for example, 500 m) ahead of the vehicle in the traveling direction, an enlarged view near the guide intersection and the traveling direction at the vehicle's guide intersection are also displayed. A HUD or HMD may be used instead of the liquid crystal display 35.

Further, the speaker 36 outputs voice guidance for guiding the traveling along the guidance route (scheduled traveling route) and traffic information guidance based on the instruction from the navigation ECU 33. In particular, in the present embodiment, when the guidance intersection reaches a predetermined distance (for example, 700m, 300m, 50m) ahead of the vehicle in the traveling direction, the output of the voice guidance for guiding the traveling along the guidance route is started. Further, the navigation device 5 according to the present embodiment outputs voice guidance using the marks when there is an appropriate mark around the guide intersection in the case of performing the movement guidance of the guide intersection.

The DVD drive 37 is a drive capable of reading data recorded on a recording medium such as a DVD or a CD. Then, based on the read data, music and video are reproduced, the map information DB 45 is updated, and the like. A card slot for reading and writing a memory card may be provided instead of the DVD drive 37.

Further, the communication module 38 is a communication device for receiving traffic information or the like transmitted from a traffic information center, for example, a VICS center or another external center, and corresponds to, for example, a mobile phone or a DCM. It also includes a vehicle-to-vehicle communication device that communicates between vehicles and a road-to-vehicle communication device that communicates with a roadside unit. It is also used to send and receive probe information and distribution information to and from the server device 3.

Further, the vehicle speed sensor 39 is a sensor for detecting the moving distance and the vehicle speed of the vehicle, generates a pulse according to the rotation of the driving wheel of the vehicle, and outputs the pulse signal to the navigation ECU 33. Then, the navigation ECU 33 calculates the vehicle speed and the moving distance of the vehicle by counting the generated pulses.

Subsequently, a user information detection processing program executed by the server device 3 included in the user information detection system 1 having the above configuration will be described with reference to FIG. 7. FIG. 7 is a flowchart of the user information detection processing program according to the present embodiment. Here, the user information detection processing program is executed after a lapse of a predetermined time (for example, 24 hours) from the time when the program was executed last time, and based on the probe information transmitted from each vehicle 4, the area and POI familiar to the user are used. Is a program that detects. The program shown in the flowchart in FIG. 7 below is stored in the RAM 22, ROM 23, or the like included in the server device 3, and is executed by the CPU 21.

The processing of the following steps (hereinafter abbreviated as S) 1 to S7 is executed in a loop for each vehicle (user who is occupying the vehicle) that is the source of probe information nationwide, and is executed for all vehicles. Repeat until the process is completed.

First, in S1, the CPU 21 extracts the probe information of the vehicle to be processed from the probe information (FIG. 3) currently stored in the probe information DB 12 (in the probe information DB 12 from the time when the previous program was executed). Only the stored probe information may be targeted, or only the probe information stored in the most recent fixed period (for example, 2 months) may be targeted). As shown in FIG. 3, the probe information is (a) the date and time and (b) the mesh code of the tertiary mesh on which the vehicle 4 travels at that date and time, (c) the latitude detected by GPS, and (d) detected by GPS. The longitude, (e) the vehicle speed of the vehicle 4, and (f) the yaw rate of the vehicle 4 are included. The probe information is periodically collected from each vehicle 4 traveling nationwide. For example, in the example shown in FIG. 3, probe information is repeatedly collected from the vehicle at intervals of 200 msec. However, it is not always necessary to collect probe information at intervals of 200 msec. For example, the probe information to be transmitted in the navigation device 5 may be stored in the flash memory 54 or the like, and the probe information within a predetermined period may be collectively transmitted to the server device 3.

Next, in S2, the CPU 21 classifies (statistics) the probe information extracted in S1 for each area including the position of the user specified by the probe information. In this embodiment, the area unit to be aggregated is a tertiary mesh (1 km square) unit that divides the map information. After that, the aggregated information is stored in the position history DB 13. As a result, the position history information that aggregates the frequency of including the user's position information for each area is generated in the position history DB 13. As shown in FIG. 4, the position history DB 13 stores the frequency (number of probe information) in which the user's position information is included for each user and each area.

Subsequently, in S3, the CPU 21 detects an area familiar to the user (hereinafter, referred to as a familiar area) based on the result of aggregation (statistics) of the probe information in S2. The familiar area corresponds to an area that the user is familiar with (knowledgeable) and an area that the user recognizes, and if a plurality of areas are applicable, a plurality of areas may be detected as familiar areas. .. Specifically, in S3, the CPU 21 refers to the position history DB 13 and detects a tertiary mesh having a frequency (number of probe information) of the user's position information included as a threshold value or more as a familiar area. The threshold value can be changed as appropriate according to the aggregation period. For example, if the threshold value is 100,000, in the example shown in FIG. 4, the two tertiary meshes of the mesh code “123abc” and the mesh code “123efg” are familiar areas. Will be detected as.

Then, the subsequent processes S4 to S7 are executed in a loop for each familiar area detected in S3, and are repeated until the processes for all the familiar areas are completed.

First, in S4, the CPU 21 has already processed the familiar area of the processing target for the vehicle to be processed (the user who is occupying the vehicle) in the user information detection processing program executed in the past (users in S5 to S7 described later). It is determined whether or not the POI familiar to the user is registered in the familiar POI information DB 14).

Then, when it is determined that the familiar area of the processing target for the vehicle to be processed (the user who is occupying the vehicle) has already been processed by the user information detection processing program executed in the past (S4: YES). Since the POI familiar to the user in the past processing is already registered in the familiar POI information DB 14, the processing is terminated without detecting the POI familiar to the user. On the other hand, when it is determined that the familiar area to be processed is not processed by the user information detection processing program executed in the past for the vehicle to be processed (user who is occupying the vehicle) (S4: NO). , S5.

In S5, the CPU 21 extracts the POI included in the familiar area of the processing target by using the map information possessed by the server device 3. Although all POIs may be extracted, in the present embodiment, only POIs corresponding to a specific genre used as landmarks in the movement guidance may be extracted. The genres used as landmarks in the movement guidance are, for example, "convenience store", "cafe", "restaurant", "gas station", and the like.

Then, the subsequent processes of S6 and S7 are executed in a loop in units of POIs extracted in S5, and are repeated until the processes for all POIs are completed.

First, in S6, the CPU 21 extracts a certain number of character strings or a character string such as a space from the beginning in order to eliminate a part of the name of the POI to be processed that depends on the address of the location such as the branch name. For example, when the name of the POI to be processed is "○○ store XX town store", "○○ store" is extracted. Then, the extracted name is associated with the genre to which the POI to be processed belongs.

After that, in S7, the CPU 21 stores the genre and the name of the POI to be processed in the familiar POI information DB 14 as familiar POI information in a state of being linked.

Then, the CPU 21 performs the processes of S1 to S7 for each vehicle (user occupying the vehicle), processes S4 to S7 for each familiar area, and processes S6 and S7 for each POI extracted in S5. By doing so, as shown in FIG. 5, in the familiar POI information DB 14, the names of POIs familiar to the user are associated and stored for each user and each genre. The number of POI names associated with one genre is not limited to one, and a plurality of POI names may be associated with each other. For example, when there are a plurality of types of convenience store stores in an area familiar to the user, the name of each store is associated with the convenience store and stored. Further, the server device 3 can grasp the POI familiar to the user for each user by the familiar POI information stored in the familiar POI information DB 14. Then, when the movement guidance is performed in the vehicle as described later, especially when the current position of the vehicle is located in an area unfamiliar to the user who is a occupant, the familiar POI regarding the corresponding user with respect to the navigation device 5 Distribute information. As a result, it becomes possible to perform movement guidance using POI, which is familiar to the user, as described later.

Next, the area determination processing program executed by the server device 3 and the navigation device 5 constituting the user information detection system 1 according to the present embodiment will be described with reference to FIG. FIG. 8 is a flowchart of the area determination processing program according to the present embodiment. Here, the area determination processing program is executed every fixed distance (for example, 1 km) travel or every predetermined time (for example, 10 minutes) elapses after the ACC power supply (accessory power supply) of the vehicle 4 is turned on, and the user information detection described above is performed. It is a program that determines whether or not the current position of the vehicle is located in an area unfamiliar to the user who is a occupant by using the detection result of the processing program (FIG. 7). The program shown in the flowchart in FIG. 8 below is stored in the RAM 52 or ROM 53 included in the navigation device 5, the RAM 22 or ROM 23 included in the server device 3, and is executed by the CPU 21 or the CPU 51. Further, the following area determination processing program may be executed by a communication terminal other than the navigation device 5 (for example, a mobile phone, a smartphone, a tablet terminal, a personal computer, etc.) instead of the navigation device 5.

First, the area determination processing program executed by the navigation device 5 will be described.
In S11, the CPU 51 transmits information for identifying the tertiary mesh in which the vehicle is currently located (hereinafter referred to as mesh information) to the server device 3. The tertiary mesh in which the vehicle is currently located is subjected to map matching processing for matching the current position of the specified vehicle with the map information using the detection results of various sensors such as the current position detection unit 31 and the vehicle speed sensor 39. Specified by.

The mesh information transmitted in S11 includes a terminal ID that identifies the navigation device 5 from which the information is transmitted, and a mesh code that identifies the tertiary mesh in which the vehicle is currently located. After that, as will be described later, the server device 3 that has received the mesh information from the navigation device 5 performs a process of determining whether or not the current position of the vehicle is located in an area unfamiliar to the user who is a occupant (S21 to 1). S24).

Subsequently, in S12, the CPU 51 receives the information distributed from the server device 3 in response to the transmission of the mesh information. The information received in S12 is information transmitted especially when the current position of the vehicle is located in an area unfamiliar to the user who is a occupant, and is information about POI familiar to the user. The information received in S12 is stored in the flash memory 54 or the like, and is used when performing movement guidance in a movement guidance processing program (see FIG. 9) described later.

Next, in S12, the CPU 51 turns on the "unfamiliar flag" indicating that the current position of the vehicle is located in an area unfamiliar to the user who is a occupant. The "unfamiliar flag" is continuously turned on until it is determined that the current position of the vehicle is located in an area familiar to the user who is the occupant, and the current position of the vehicle is familiar to the user who is the occupant. It is turned off when it is determined that the vehicle is located in a certain area.

Next, the area determination processing program executed in the server device 3 will be described.
First, in S21, the CPU 21 receives the mesh information transmitted from each vehicle 4 traveling nationwide. The mesh information includes a terminal ID that identifies the navigation device 5 that is the source of the information, and a mesh code that identifies the tertiary mesh in which the vehicle is currently located.

Next, in S22, the CPU 21 determines whether or not the current position of the vehicle from which the mesh information is transmitted is located in an area familiar to the user who is a occupant, based on the position history information stored in the position history DB 13. .. As described above, the position history information stores the frequency (number of probe information) in which the user's position information is included for each user and each area (see FIG. 4), and the CPU 21 is used for each user based on the position history information. It is possible to identify areas that are familiar or unfamiliar to the user. For example, assuming that a tertiary mesh having a frequency (number of probe information) of 100,000 or more including the user's position information is an area familiar to the user, in the example shown in FIG. 4, the mesh code “123abc” and the mesh code “123efg” are used. The two cubic meshes of "" correspond to the area familiar to the user, and the three tertiary meshes of the mesh code "123bcd", the mesh code "123def" and the mesh code "123efg" correspond to the area unfamiliar to the user. do.

Then, when it is determined that the current position of the vehicle from which the mesh information is transmitted is located in an area familiar to the user who is a occupant (S22: YES), the user is familiar with the POI of the area currently traveled. Regardless of which POI is used as the mark, the user estimates that the POI guided as the mark can be accurately identified in the actual scene, and ends the process. In particular, when the "unfamiliar flag" is turned on in the navigation device 5 from which the mesh information is transmitted, an instruction to turn off the "unfamiliar flag" is transmitted.

On the other hand, when it is determined that the current position of the vehicle from which the mesh information is transmitted is located in an area unfamiliar to the user who is an occupant (S22: NO), the user is unfamiliar with the POI of the area currently traveled. It is presumed that the user may not be able to accurately identify the POI guided as a mark in the actual scene when the movement guidance is performed using the POI around the guide intersection as a mark. Therefore, the CPU 21 extracts information about the POI familiar to the user who is a occupant of the vehicle from which the mesh information is transmitted from the familiar POI information DB 14. In the POI information DB 14 familiar to the user information detection processing program (FIG. 7) described above, the names of POIs familiar to the user are stored in advance for each user and each genre.

After that, in S24, the CPU 21 delivers the information about the POI familiar to the user who is the occupant of the vehicle from which the mesh information extracted in S23 is transmitted to the corresponding navigation device 5. After that, the navigation device 5 uses the distributed information on the familiar POI when performing the movement guidance in the movement guidance processing program (see FIG. 9) described later.

Subsequently, a movement guidance processing program executed by the navigation device 5 constituting the user information detection system 1 according to the present embodiment will be described with reference to FIG. FIG. 9 is a flowchart of the movement guidance processing program according to the present embodiment. Here, the movement guidance processing program is a program that is executed after the ACC power supply (accessory power supply) of the vehicle is turned on to guide the movement of the vehicle along the guidance route. The program shown in the flowchart in FIG. 9 below is stored in a RAM 52, a ROM 53, or the like provided in the navigation device 5, and is executed by the CPU 51. Further, the following movement guidance processing program may be executed by a communication terminal (for example, a mobile phone, a smartphone, a tablet terminal, a personal computer, etc.) having a navigation function other than the navigation device 5 instead of the navigation device 5.

First, in S31, the CPU 51 identifies the current position of the vehicle (user) based on the detection result of the current position detection unit 31 and the map information. When specifying the current position of the vehicle, a map matching process for matching the current position of the vehicle with the map information is also performed.

After that, in S32, the CPU 51 determines whether or not it is the timing to output the movement guidance at the guidance intersection to be guided. Specifically, the timing at which the current position of the vehicle is located 700 m or 300 m before the guide intersection is defined as the output timing of the movement guide.

Then, when it is determined that it is the timing to output the movement guidance at the guidance intersection (S32: YES), the process proceeds to S33. On the other hand, when it is determined that it is not the timing to output the movement guidance at the guidance intersection (S32: NO), the movement guidance processing program is terminated.

In S33, the CPU 51 reads the "unfamiliar flag" stored in the flash memory 54, and whether or not the "unfamiliar flag" is ON, that is, whether the current position of the vehicle is located in an area unfamiliar to the user who is an occupant. Judge whether or not. The "unfamiliar flag" is turned ON when it is determined in the above-mentioned area determination processing program (FIG. 8) that the current position of the vehicle is located in an area unfamiliar to the user who is a occupant (S12).

Then, when the "unfamiliar flag" is ON, that is, when it is determined that the current position of the vehicle is located in an area unfamiliar to the user who is a occupant (S33: YES), the process proceeds to S35. On the other hand, when the "unfamiliar flag" is OFF, that is, when it is determined that the current position of the vehicle is located in an area familiar to the user who is a occupant (S33: NO), the process proceeds to S34.

In S34, the CPU 51 estimates that the user is familiar with the POI of the area in which he / she is currently traveling, and that the user can accurately identify the POI guided as the mark in the actual scene regardless of which POI is used as the mark. Therefore, the movement guidance is performed for the guidance intersection located in front of the vehicle in the traveling direction in the usual manner. Specifically, if there is an appropriate mark around the guidance intersection, voice guidance using the mark is output. Further, the liquid crystal display 35 may display an enlarged view of the intersection in addition to the output of the voice guidance. Further, the guidance intersection may be guided by the text displayed on the liquid crystal display 35 instead of the voice.

Here, the "appropriate mark" is, for example, when a POI of a specific genre is located within a predetermined distance around the guide intersection and at a position visible from the traveling direction of the vehicle at the guide intersection, the POI is used as the guide intersection. Use it as an appropriate mark for guidance. The genres used as landmarks in the movement guidance are, for example, "convenience store", "cafe", "restaurant", "gas station", and the like. When there are a plurality of POIs corresponding to the "appropriate mark", for example, the POI having the highest priority is selected as the mark in consideration of the traveling direction of the vehicle at the guide intersection and the positional relationship of the POI. Then, the CPU 51 generates audio data output when guiding the guide intersection using the selected mark. Specifically, audio data of a guidance phrase including a phrase that identifies a landmark is generated. For example, when the convenience store "○○ store" is set as a guide mark, the voice data of "the intersection with the ○○ store is in the left (right) direction" is generated and output.

As a result, for example, at the timing when the vehicle 4 is located 700 m or 300 m before the guide intersection 61 as shown in FIG. 10, the convenience store "○○ store" 62 around the guide intersection 61 is selected as a mark. If so, the voice "The intersection with the XX store is in the left (right) direction" is output. As a result, the user can accurately identify the position of the guide intersection 61 with reference to the position of the familiar POI which is a mark. If there is no appropriate mark around the guide intersection in S34, movement guidance is performed using, for example, the distance to the guide intersection and the number of intersections (or traffic lights).

On the other hand, in S35, the CPU 51 identifies a POI to be used as a mark for movement guidance at a guidance intersection in front of the vehicle in the traveling direction. Here, in the navigation device 5 of the present embodiment, if there is an appropriate mark around the guidance intersection, movement guidance using the mark is performed. Therefore, the POI to be used as the movement guide of the guide intersection corresponds to an appropriate mark around the guide intersection. As described above, when the "appropriate mark" is within a predetermined distance around the guide intersection and there is a POI of a specific genre at a position visible from the direction of travel of the vehicle at the guide intersection, the POI is used as the guide intersection. Use it as an appropriate mark for guidance. When there are a plurality of POIs corresponding to the "appropriate mark", for example, the POI having the highest priority is selected as the mark in consideration of the traveling direction of the vehicle at the guide intersection and the positional relationship of the POI. However, if there is no appropriate mark around the guide intersection, movement guidance using the mark is not performed, so the processing after S35 is omitted and the process proceeds to S41.

Next, in S36, the CPU 51 reads the familiar POI information received from the server device 3 in the area determination processing program (FIG. 8), and determines whether or not the POI specified in S35 is included in the familiar POI information. Will be done. Here, the familiar POI information is information in which a POI familiar to the user is specified (see FIG. 5). Therefore, in S36, it is determined whether or not the POI to be used as a mark for movement guidance is a POI familiar to the user.

Then, the POI specified in S35 is included in the familiar POI information, that is, the current position of the vehicle is located in an area unfamiliar to the user who is a occupant, but the POI to be used as a marker for movement guidance is If the POI is familiar to the user (S36: YES), the process proceeds to S34. In S34, the CPU 51 estimates that the user is not familiar with the area in which he / she is currently traveling, but is familiar with the POI used for the mark, so that the user can accurately identify the POI guided as the mark in the actual scene. Therefore, the movement guidance for the guidance intersection located in front of the vehicle in the traveling direction is performed without changing the planned mark. Specifically, voice guidance using a mark around the guidance intersection is output (see FIG. 10). Further, the liquid crystal display 35 may display an enlarged view of the intersection in addition to the output of the voice guidance. Further, the guidance intersection may be guided by the text displayed on the liquid crystal display 35 instead of the voice.

On the other hand, the POI specified in S35 is not included in the familiar POI information, that is, the POI where the current position of the vehicle is located in an area unfamiliar to the user who is a occupant and is to be used as a marker for movement guidance. If the POI is unfamiliar to the user (S36: NO), the process proceeds to S37.

In S37, the CPU 51 searches for a POI familiar to the user in the vicinity of the guide path (including the vicinity of the guide intersection) from the current position of the vehicle to the guide intersection. The POI familiar to the user is stored in the familiar POI information (FIG. 5) received from the server device 3 in the above-mentioned area determination processing program (FIG. 8). Further, if only the POI corresponding to the genre used for the mark is registered as the familiar POI information in advance, a more appropriate mark can be selected in S39 described later.

After that, in S38, the CPU 51 determines whether or not the POI familiar to the user can be searched around the guide path from the current position of the vehicle to the guide intersection as a result of the search process in S37.

Then, when it is determined that the POI familiar to the user can be searched around the guide route from the current position of the vehicle to the guide intersection as a result of the search process in S37 (S38: YES), the process proceeds to S39. .. On the other hand, when it is determined as a result of the search process of S37 that a POI familiar to the user cannot be searched around the guidance route from the current position of the vehicle to the guidance intersection (S38: NO), the process proceeds to S41. And migrate.

In S39, the CPU 51 selects the POI closest to the guide intersection among the POIs searched in S37 as a new mark. For example, as shown in FIG. 11, when there is a guide intersection 71 in front of the vehicle 4 in the traveling direction, the user is familiar with the "XX shop" 72, which was planned to be a landmark around the guide intersection 71. If there is no POI, a POI familiar to the user along the guide route from the vehicle 4 to the guide intersection 71 is searched. As a result, when two POIs, "XX coffee shop" 73 and "XX restaurant" 74, are searched, "XX coffee shop" 73, which is closer to the guidance intersection 71, is selected as a new landmark. Will be done. That is, in the example shown in FIG. 11, the POI familiar to the user (“XX shop” 72 in FIG. 11) is prioritized over the POI unfamiliar to the user (“XX coffee shop” 73 in FIG. 11) as a marker. Will be done.

In S39, when a plurality of POIs are searched, the one closer to the guide intersection is preferentially selected as a new mark, but it may be selected under conditions other than the distance to the guide intersection. For example, a POI or a well-known POI located at a position that is easy for the user to see (for example, on the left side with respect to the traveling direction in a country with left-hand traffic) may be preferentially selected as a new mark.

After that, in S40, the CPU 51 uses the mark selected in S39 to guide the movement to the guidance intersection located in front of the vehicle in the traveling direction. Specifically, the voice guidance using the mark selected in S39 is output. Further, the liquid crystal display 35 may display an enlarged view of the intersection in addition to the output of the voice guidance. Further, the guidance intersection may be guided by the text displayed on the liquid crystal display 35 instead of the voice.

Here, particularly when the new mark selected in S39 is not around the guide intersection, the number of intersections (or traffic lights) between the mark and the guide intersection is specified from the map information and specified. It is desirable to provide movement guidance using the number of intersections (or traffic lights). Specifically, in addition to the mark, audio data of the guide phrase including a phrase that identifies the number of intersections (or traffic lights) from the mark to the guide intersection is generated. For example, if "XX coffee shop" is set as a new landmark and there is one intersection between "XX coffee shop" and the guide intersection, "XX coffee shop to the second intersection" "Left (right) direction" is generated and output.

As a result, for example, at the timing when the vehicle 4 is located 700 m or 300 m before the guide intersection 71 as shown in FIG. 12, the cafe "XX coffee shop" 73 in front of the guide intersection 71 becomes a new landmark. If it is selected, the voice "The second intersection from the XX coffee shop is in the left (right) direction" is output. As a result, the user can accurately identify the position of the guide intersection 71 with reference to the position of the familiar POI which is a mark. Even if the new mark is away from the guide intersection 71, the position of the guide intersection 71 can be accurately specified by using the number of intersections and traffic lights.

On the other hand, in S41, the CPU 51 performs movement guidance using, for example, the distance to the guidance intersection and the number of traffic lights (intersections) without using the mark.

As described in detail above, in the computer program executed by the user information detection system 1, the server device 3, and the server device 3 according to the present embodiment, the history of the user's position information is acquired (S1), and the acquired user's position information is acquired. Based on the history of location information, the area familiar to the user is detected (S2, S3), and the area familiar to the user and the POI existing in the detected area are detected as the POI familiar to the user. (S5 to S7), it is possible to accurately detect the POI familiar to the user by acquiring the history of the user's position information. Then, by grasping the POI familiar to the user on the device side, for example, when the movement guidance of the user is performed using the mark, the POI that the user does not understand or the POI that the user does not know is adopted as the mark. It is possible to prevent the user from being able to accurately identify the POI guided as a mark in the actual scene.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various improvements and modifications can be made without departing from the gist of the present invention.
For example, in the present embodiment, a probe car system that uses probe information is used to detect an area or POI that is familiar to the user based on vehicle behavior collected from a plurality of vehicles traveling nationwide, but the probe car system uses the probe car system. Not required. It is also possible to detect an area or POI familiar to the user occupying the vehicle based on the vehicle behavior acquired from one vehicle. For example, the navigation device 5 can detect an area or POI familiar to the user of the own vehicle based on the past vehicle behavior of the own vehicle.

Further, in the present embodiment, an area in which the frequency (that is, staying time) of the user's location information acquired in the past is equal to or greater than the threshold value is detected as an area familiar to the user, but the frequency of including the location information is detected. Instead, an area where the mileage or the number of mileage links is equal to or greater than the threshold value may be detected as an area familiar to the user.

Further, in the present embodiment, the familiar POI information DB 14 stores the POI familiar to the user for each genre in association with each other, but it is not always necessary to associate and store the POI for each genre.

Further, in the present embodiment, as a control using the detection result of the area and POI that the vehicle is familiar to the user (providing a service to the user), the guide intersection is provided as a mark guide, but other controls are used. You may go. For example, guidance may be provided to a guidance target point other than the guidance intersection using a mark, or facility guidance may be provided. As an example of facility guidance, for example, when a search for surrounding facilities is performed under conditions specified by the user, it is possible to control to preferentially output a POI familiar to the user.

Further, in the present embodiment, the execution subject of the user information detection processing program shown in FIG. 7 is the server device 3, but the navigation device 5 may execute the program. In that case, if the area or POI familiar to the user is detected by using only the vehicle behavior of the own vehicle without using the vehicle behavior of another vehicle, the server device 3 is an indispensable element in the user information detection system 1. Instead, the user information detection system 1 can be configured only by the navigation device 5.

On the other hand, in the present embodiment, the execution subject of the movement guidance processing program shown in FIG. 9 is the navigation device 5, but the server device 3 may be configured to execute a part or the whole. In that case, the server device 3 executes the processes after S33 when it is determined that there is a vehicle approaching the guide intersection based on the current position information periodically acquired from the vehicle, for example. Then, the finally generated guidance phrase is delivered to the corresponding vehicle.

Further, as a means for guiding the guidance intersection, another device having a traveling guidance function may be used instead of the navigation device 5. For example, an in-vehicle device other than the navigation device 5, a mobile phone, a smartphone, a tablet terminal, a personal computer, or the like is possible.

Further, although the embodiment in which the user information detection system according to the present invention is embodied has been described above, the user information detection system can also have the following configuration, and in that case, the following effects are obtained.

For example, the first configuration is as follows.
A history acquisition means (21) for acquiring the history of the user's location information, and an area detection means (21) for detecting an area familiar to the user based on the history of the user's location information acquired by the history acquisition means. It has an area familiar to the user by the area detecting means and a point detecting means (21) for detecting the POI existing in the detected area as the POI familiar to the user.
According to the user information detection system having the above configuration, it is possible to accurately detect the POI familiar to the user by acquiring the history of the user's position information. Then, by grasping the POI familiar to the user on the device side, for example, when the movement guidance of the user is performed using the mark, the POI that the user does not understand or the POI that the user does not know is adopted as the mark. It is possible to prevent the user from being able to accurately identify the POI guided as a mark in the actual scene.

The second configuration is as follows.
The history acquisition means (21) acquires the history of the user's position information by repeatedly acquiring the current user's position information at predetermined intervals, and the area detection means (21) is a user acquired in the past. The area where the frequency of including the position information of is equal to or higher than the threshold value is detected as an area familiar to the user.
According to the user information detection system having the above configuration, it is possible to detect an area where the user spends a long time in daily life, such as around the home or around a facility that the user often visits, as an area familiar to the user. ..

The third configuration is as follows.
The area detecting means (21) detects an area familiar to the user in units of meshes that divide the map information.
According to the user information detection system having the above configuration, since the area familiar to the user is detected especially in the Messi unit that divides the map information, it is possible to facilitate the data management of the area familiar to the user on the device side. It will be possible.

The fourth configuration is as follows.
The point detecting means (21) detects a POI familiar to the user for each genre that divides the POI.
According to the user information detection system having the above configuration, the POI familiar to the user is detected especially for each genre, so that the POI can be selected in consideration of the genre when providing guidance and support using the POI.

The fifth configuration is as follows.
It has information providing means (21, 51) that provides information to a user based on the detection result of the point detecting means (21).
According to the user information detection system having the above configuration, it is possible to provide information using POI, which is familiar to the user.

The sixth configuration is as follows.
The information providing means (21, 51) provides information on a mark for the user to move according to the set guide route, and gives priority to the POI familiar to the user detected by the point detecting means as the mark. To select.
According to the user information detection system having the above configuration, when the movement guidance of the user is performed using the mark, it is possible to prevent the POI that the user does not understand or the POI that the user does not know is adopted as the mark, and the user can use the mark. It is possible to accurately identify the POI guided by the above in the actual scene.

The seventh configuration is as follows.
The information providing means (21, 51) has an area determining means (21) for determining whether or not the area where the user is currently located is an area familiar to the user detected by the area detecting means (21). When it is determined that the area where the user is currently located is not an area familiar to the user detected by the area detecting means, the POI familiar to the user is preferentially selected as the mark.
According to the user information detection system having the above configuration, it is highly likely that the area where the user is currently located is not familiar to the user, and the POI is not familiar to the user. It is possible to prevent a POI that cannot be used or a POI that the user does not know from being adopted as a mark, and it is possible to accurately identify the POI guided as a mark by the user in the actual scene.

The eighth configuration is as follows.
The information providing means (21, 51) determines whether or not there is a POI familiar to the user in the vicinity of the guidance target point to be guided, and the POI familiar to the user is generated in the vicinity of the guidance target point. When it is determined that there is no POI, a POI familiar to the user is searched around the guide route on the front side of the guide target point, and the searched POI is selected as the mark.
According to the user information detection system having the above configuration, in the case of performing the movement guidance of the user using the mark, even if the POI familiar to the user does not exist in the vicinity of the guidance target point, the POI that the user cannot understand or It is possible to prevent a POI unknown to the user from being adopted as a mark, and to allow the user to accurately identify the POI guided as a mark in the actual scene.

The ninth configuration is as follows.
The mark is a mark used to guide the movement of a user at a guide intersection included in the guide route.
According to the user information detection system having the above configuration, it is possible to prevent POIs that the user does not understand or POIs that the user does not know are adopted as the landmarks when guiding the movement of the user at the guidance intersection using the landmarks. , The POI guided as a mark by the user can be accurately specified in the actual scene, and the guide intersection can be accurately specified based on the POI which is the mark.

1 User information detection system 2 Probe center 3 Server device 4 Vehicle 5 Navigation device 11 Server control ECU
12 Probe information DB
13 Location history DB
14 Familiar POI information DB
21 CPU
33 Navigation ECU
35 liquid crystal display 51 CPU
61, 71 Information intersection 62, 73, 74 POI

Claims (11)

History acquisition means to acquire the history of user's location information,
An area detecting means for detecting an area familiar to the user based on the history of the user's location information acquired by the history acquiring means, and an area detecting means.
A user information detection system including an area familiar to the user by the area detecting means and a point detecting means for detecting a POI existing in the detected area as a POI familiar to the user. The history acquisition means acquires the history of the user's position information by repeatedly acquiring the current user's position information at predetermined intervals.
The user information detection system according to claim 1, wherein the area detection means detects an area in which the frequency of including the user's position information acquired in the past is equal to or higher than a threshold value as an area familiar to the user. The user information detection system according to claim 1 or 2, wherein the area detection means detects an area familiar to the user in units of meshes that divide map information. The user information detection system according to any one of claims 1 to 3, wherein the point detecting means detects a POI familiar to the user for each genre that classifies the POI. The user information detection system according to any one of claims 1 to 4, further comprising an information providing means for providing information to the user based on the detection result of the point detecting means. The information providing means is
Provides information on landmarks for users to move according to the set guidance route,
The user information detection system according to claim 5, wherein a POI familiar to the user detected by the point detection means is preferentially selected as the mark. It has an area determining means for determining whether or not the area where the user is currently located is an area familiar to the user detected by the area detecting means.
When it is determined that the area where the user is currently located is not an area familiar to the user detected by the area detecting means, the information providing means preferentially selects a POI familiar to the user as the mark. The user information detection system according to claim 6. The information providing means is
It is determined whether or not there is a POI familiar to the user around the guidance target point to be guided.
When it is determined that there is no POI familiar to the user in the vicinity of the guidance target point, a POI familiar to the user is searched for in the vicinity of the guidance route on the front side of the guidance target point.
The user information detection system according to claim 6 or 7, wherein the searched POI is selected as the mark. The user information detection system according to any one of claims 6 to 8, wherein the mark is a mark used for guiding the movement of a user at a guidance intersection included in the guidance route. History acquisition means to acquire the history of user's location information,
An area detecting means for detecting an area familiar to the user based on the history of the user's location information acquired by the history acquiring means, and an area detecting means.
A user information detecting device comprising an area familiar to the user by the area detecting means and a point detecting means for detecting a POI existing in the detected area as a POI familiar to the user. Computer,
History acquisition means to acquire the history of user's location information,
An area detecting means for detecting an area familiar to the user based on the history of the user's location information acquired by the history acquiring means, and an area detecting means.
A point detecting means for detecting an area familiar to the user by the area detecting means and a POI existing in the detected area as a POI familiar to the user,
A computer program to make it work.

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