JP7227085B2 - MAP INFORMATION GENERATING DEVICE, MAP INFORMATION GENERATING METHOD AND MAP INFORMATION GENERATING PROGRAM - Google Patents

Description

The present invention relates to a map information generating device, a map information generating method, and a map information generating program.

A navigation device mounted on a vehicle is required to appropriately guide a driver to a destination in order to improve convenience for the driver. For example, in facilities such as department stores, parking lots (general parking lots) are used by facility users (general drivers), and vendors, etc. who deliver products, etc. to the facilities and employees of the facilities, etc. (specific drivers) are used. There may be a parking lot (specific parking lot) to be used. When the above facilities are set as destinations for route guidance, the navigation device guides the driver to either a general parking lot or a specific parking lot in order to improve the driver's convenience. is required.
The technology described in Patent Document 1 identifies in advance a parking lot suitable for product delivery based on probe information of a vehicle (delivery vehicle) used by a transportation company, even if a facility has multiple parking lots. In this configuration, the delivery vehicle is guided to a pre-specified parking lot the next time the product is delivered.

JP 2012-184974 A

A navigation device mounted on a vehicle is required to provide appropriate guidance to a destination in order to improve driver's convenience. For example, when a parking lot with a relatively large number of parking spaces is set as a destination, the navigation device prevents guidance to a point that is adjacent to the parking lot but does not have an entrance to the parking lot. It may be desired to properly guide the entrance of the Further, for example, as described above, a navigation device is required to guide a vehicle driven by a specific driver to a specific parking lot and to guide a vehicle driven by a general driver to a general parking lot. Therefore, the navigation device is required to grasp the entrance of the parking lot suitable for the purpose of use of the destination.
However, although the technique described in Patent Document 1 guides the user to a parking lot suitable for product delivery, it does not know the entrance of the parking lot, and the delivery vehicle is guided to the entrance of the parking lot. No guidance has been given.

SUMMARY OF THE INVENTION An object of the present invention is to provide a map information generating apparatus, a map information generating method, and a map information generating program capable of specifying an entrance/exit for a specific vehicle at a destination.

A map information generating device of one aspect includes at least traveling position information about the traveling position of a vehicle and identification information for identifying the vehicle, and an acquiring unit that acquires a plurality of probe information heading for the same destination, and an acquiring unit. A generation unit that identifies a departure point where a vehicle leaves a link indicating a road based on acquired probe information and generates a departure point group, and based on the identification information, the departure point group is a departure from the link by a specific vehicle. and a setting unit that sets the representative point of the departure point group in map information for navigation as an entrance/exit point for a specific vehicle at the destination, if it is determined to have been generated by the method.

In one aspect of the map information generation device, the probe information includes time information, and the setting unit causes the specific vehicle to link at the departure point group during a predetermined time period based on the time information included in the probe information. If the vehicle has left, the representative point of the group of leaving points may be set in the map information for navigation as an entrance/exit point for a specific vehicle that can be used at the destination during a predetermined time period. This is because the doorways for specific vehicles are frequently used before and after the business hours of the facility. This is also because it can be assumed that a specific vehicle visits the facility at the same time each time.

In one aspect of the map information generation device, when the number of vehicles that have left the link from the group of leaving points is within a predetermined range, the setting unit designates the representative point of the group of leaving points as the entrance/exit point for the specific vehicle at the destination. It may be specified and set as map information for navigation. This is because the number of specific vehicles is limited to the number of vehicles driven by general drivers.

A map information generation device of one aspect includes a storage unit that stores in advance a correspondence relationship in which a facility set as a destination and a parking lot related to the facility are associated in advance, and when the facility is set as the destination, A specifying unit that specifies a parking lot related to the facility based on the correspondence stored in the storage unit, and a case where the exit point specified based on the probe information is not adjacent to the parking lot specified by the specifying unit , and an exclusion unit that excludes the departure point from the departure point group. This is because even if a facility is set as the destination in the probe information, the parking lot of that facility may not be used.

In one aspect of the map information generation method, a computer acquires a plurality of probe information that includes at least traveling position information about the traveling position of the vehicle and identification information for identifying the vehicle and is directed to the same destination; a generation step of identifying a departure point at which a vehicle leaves a link indicating a road based on the probe information acquired by the acquisition step to generate a departure point group; a setting step of setting the representative point of the leaving point group in map information for navigation as an entrance/exit point for a specific vehicle at the destination when it is determined that the leaving point group is generated by leaving the link.

A map information generation program of one aspect includes, in a computer, at least travel position information about the travel position of a vehicle and identification information for identifying the vehicle, and an acquisition function of acquiring a plurality of probe information heading for the same destination; Based on the probe information acquired by the acquisition function, the departure point where the vehicle leaves the link indicating the road is specified, and the generation function generates the departure point group, and based on the identification information, the departure point group is determined by the specific vehicle. and a setting function of setting a representative point of the leaving point group in map information for navigation as an entrance/exit point for a specific vehicle at the destination when it is determined that the point is generated by leaving the link.

A map information generating device of one aspect acquires a plurality of probe information heading for the same destination, identifies a departure point based on the probe information, generates a departure point group, and based on identification information included in the probe information When it is determined that the departure point group was generated by a specific vehicle, the representative point of the departure point group is set in the map information for navigation as an entrance/exit point for the specific vehicle at the destination. A doorway for a particular vehicle can be specified.
Further, the map information generating method and the map information generating program of one aspect can achieve the same effects as the map information generating device of one aspect described above.

1 is a diagram for explaining a map information generation system according to one embodiment; FIG. 1 is a block diagram for explaining a map information generation device according to an embodiment; FIG. FIG. 4 is a first diagram for explaining a departure point and a group of departure points; FIG. 10 is a second diagram for explaining a departure point and a group of departure points; It is a flow chart explaining a map information generation method concerning one embodiment. It is a block diagram for demonstrating the map information generation apparatus which concerns on a modification.

An embodiment of the present invention will be described below.
FIG. 1 is a diagram for explaining a map information generation system according to one embodiment.

A map information generation system 1 includes a vehicle 10 , a server 20 and a map information generation device 30 .
The vehicle 10 acquires the probe information of its own vehicle and transmits it to the server 20 . Although only one vehicle 10 is shown in FIG. 1, there may be multiple vehicles 10 .
The server 20 stores, for example, multiple pieces of probe information. Specifically, the server 20 stores a plurality of pieces of probe information transmitted from one or more vehicles 10 .

The map information generation device 30 is, for example, a device capable of processing a relatively large amount of information suitable for processing so-called big data.
The map information generating device 30 estimates, for example, the entrance of the destination (eg, the entrance of a parking lot). Note that the map information generation device 30 can also estimate the exit of the parking lot by using a technique for estimating the entrance of the parking lot (details of which will be described later). The map information generation device 30 can also estimate the entrance or exit of various facilities that the vehicle 10 enters, not limited to parking lots. Examples of various facilities include amusement parks, theme parks, castle ruins, and other facilities that have parking lots on relatively large premises. It may be a facility with an entrance/exit for driving vehicles.

A navigation device (not shown) mounted on the vehicle 10 guides the route to the destination when the destination is set. For example, if the parking lot entrance is not set in the map information, the navigation device may guide the user to a point adjacent to the parking lot but away from the parking lot entrance.
In order to solve such a problem, the map information generation device 30 acquires a point (departure point) at which the vehicle 10 leaves a link indicating a road when generating map information, and uses the departure point as a target. Identify the entrance/exit of the land (for example, the entrance of a parking lot).

Here, the driver who uses the facility (parking lot) is not the customer who uses the facility (hereinafter referred to as "general driver"), but the company related to the facility (for example, a supplier of goods) and the facility employees (hereinafter referred to as "specific drivers"). Specific drivers can use the parking lot for vendors and employees (hereinafter referred to as (referred to as a “specific parking lot”).
As an example, when the navigation device mounted on the vehicle 10 guides the driver to the entrance of the parking lot, the map information generation device 30 may suppress the guidance of general drivers to the entrance of the specific parking lot, or In order to guide a specific driver to the entrance of a specific parking lot, it is configured to identify the entrance of the specific parking lot.

Next, the map information generation device 30 will be described in detail.
FIG. 2 is a block diagram for explaining the map information generating device according to one embodiment.
FIG. 3 is a first diagram for explaining a departure point and a group of departure points.
FIG. 4 is a second diagram for explaining the departure point and the departure point group.

As shown in FIG. 2 , the map information generation device 30 includes a communication section 31 , a storage section 32 , an acquisition section 33 , a generation section 34 , a setting section 35 , a specification section 36 and an exclusion section 37 . The acquisition unit 33 , generation unit 34 , setting unit 35 , specification unit 36 and exclusion unit 37 may be implemented as functions of the control unit of the map information generation device 30 .

The communication unit 31 communicates with the server 20 or the vehicle 10 via, for example, a communication network. As an example, the communication unit 31 acquires a plurality of pieces of probe information from the server 20 under the control of the map information generation device 30 (acquisition unit 33). Note that the communication unit 31 may receive probe information transmitted from the vehicle 10 .

The storage unit 32 is a device that stores various information, programs, and the like.
As an example, the storage unit 32 stores in advance a correspondence relationship in which a facility set as a destination and a parking lot associated with the facility are associated in advance. A facility set as a destination is, for example, a facility set as a destination of a guidance route in a navigation device (not shown). A parking lot is a parking lot that can be used by users of the facility.

The acquisition unit 33 acquires a plurality of pieces of probe information heading for the same destination. The acquisition unit 33 acquires, for example, probe information in which the destination is set within the area where the entrance of the parking lot is to be estimated.
The probe information includes at least travel position information and identification information. The travel position information is information about the travel position of the vehicle 10 . The identification information is information (vehicle ID) for identifying the vehicle 10 . Also, the probe information may include time information.

Here, when generating probe information, the vehicle 10 records the destination set by the navigation device in the probe information. For example, when a navigation device is used, the vehicle 10 records the point (coordinates) at which it left the link indicating the road in the probe information based on the travel position information.

As a specific example, the vehicle 10 acquires probe information as follows.
The vehicle 10 can record the traveling position information of the vehicle 10 by using, for example, GNSS (Global Navigation Satellite System). By acquiring position information continuously or intermittently, the vehicle 10 can record the position information (travel position information) of the route traveled by the vehicle 10 in the probe information.
The vehicle 10 records a vehicle ID (identification information) for identifying its own vehicle and other vehicles in the probe information.
For example, the vehicle 10 records information (time information) about the time when the travel position information is acquired (or the travel position information is recorded as probe information) in the probe information.
The information recorded in the probe information is not limited to the above example, and includes information regarding on/off of wipers, information regarding on/off of headlights, and so on. It may include information acquired by various sensors arranged on the vehicle.

Based on the probe information acquired by the acquisition unit 33, the generation unit 34 identifies the departure points where the vehicle 10 has left the link indicating the road, and generates a departure point group. For example, based on a plurality of probe information acquired by the acquisition unit 33, the generation unit 34 groups the same (or can be regarded as the same) destinations D1 to D4 as illustrated in FIG. Create a group G1. As a more specific example, when a facility is set as a destination in the navigation device, the generator 34 groups the destinations by facility. As a more specific example, the generation unit 34 groups coordinates within a predetermined range (predetermined distance) when coordinates are set as a destination in the navigation device. In addition, the generation unit 34 identifies points (departure points P1 to P4) where the vehicle 10 departs from the link L indicating the road based on the probe information in which the grouped destinations D1 to D4 are recorded. A departure point group G2 is generated by grouping the departure points P1 to P4 (see FIG. 3).

Note that, as illustrated in FIG. 4, the generation unit 34 collects a plurality of departure points P5 to P6 and P7 to P8 within a predetermined range (predetermined distance) so that the same destinations D5 to D8 , a plurality of departure point groups G4 and G5 may be generated. That is, the generator 34 groups the same destinations D5 to D8 to generate a group G3. For example, the generation unit 34 identifies the departure points P5 to P8 based on the probe information in which the destinations D5 to D8 are recorded, groups the departure points P5 to P6 within a predetermined range, and generates the departure point group G4. In addition, the departure point group G5 may be generated by grouping the departure points P7 to P8 within a predetermined range.

When a facility is set as the destination, the specifying unit 36 specifies a parking lot related to the facility based on the correspondence stored in the storage unit 32 . As an example, facilities such as department stores, hotels, and theme parks may have parking lots in the vicinity of the facility. As described above, the storage unit 32 stores in advance the correspondence relationship between facilities and parking lots related to the facilities. When a facility as a destination is recorded in the probe information, the specifying unit 36 specifies the parking lot of that facility based on the correspondence stored in the storage unit 32 . For example, even when coordinates are set as the destination, the identifying unit 36 can identify the parking lot of the facility based on the coordinates if the coordinates and the facility are associated in advance.

If the departure point identified based on the probe information is not adjacent to the parking lot identified by the identification unit 36, the exclusion unit 37 excludes the departure point from the departure point group. When setting a destination on a navigation device, the driver may, for example, set the destination using a famous nearby facility as a landmark instead of the original destination. That is, when a facility is recorded as the destination in the probe information, the vehicle 10 does not enter the parking lot associated with the facility. Departure points in such a case need to be excluded from the detachment point group generated by the generation unit 34 . Therefore, if the parking lot related to the facility and the departure point are not adjacent to each other, the exclusion unit 37 excludes the departure point from the departure point. In the example shown in FIG. 3, the exclusion unit 37 excludes the departure point P4 from the departure point group G2 because the destination D4 and the corresponding departure point P4 are not adjacent to each other. Whether the destination and the departure point are adjacent to each other is determined, for example, when the destination and the departure point are separated by a predetermined distance or more, when the destination and the departure direction are on the opposite side of the road, or The exclusion unit 37 can appropriately determine whether the destination and the departure point are located in different blocks on the road map.

If the setting unit 35 determines, based on the identification information, that the group of departure points was generated by leaving the link indicating the road by the specific vehicle, the setting unit 35 identifies the group of departure points as the entrances and exits for the specific vehicle at the destination. to set the map information for navigation.
It is conceivable that an unspecified number of vehicles enter the entrance of a general parking lot used by general drivers. On the other hand, it is thought that only vehicles driven by a specific driver (specific vehicles) will enter the entrance of a specific parking lot used by a specific driver, and vehicles driven by general drivers (unspecified number of vehicles) will not enter. be done.
Based on the identification information, the setting unit 35 presumes that the exit point group formed by the exit points generated by one or more specific vehicles is the entrance of the specific parking lot.

In the case illustrated in FIG. 3, the departure points P1 to P3 constitute a departure point group G2. In such an example, if it is determined that the departure points P1 to P3 were generated by a specific vehicle based on the identification information, the setting unit 35 sets the representative point of the departure point group G2 to a specific vehicle in the destination. A vehicle entrance/exit point (for example, an entrance point of a specific parking lot) is identified. The representative point may be, for example, any one of the plurality of departure points that make up the group of departure points, or a position that is the center of gravity of the plurality of departure points that make up the group of departure points, or a plurality of departure points. It may be the central position of the point. Also, the representative point may be, for example, the central position of the group of departure points or an arbitrary position.
Note that the setting unit 35 may be set when the plurality of departure points constituting the departure point group includes a departure point generated by a vehicle driven by a specific driver and a departure point generated by a vehicle driven by a general driver. , a departure point generated by a vehicle driven by a general driver may be deleted from the departure point group.

In the example shown in FIG. 4, the setting unit 35 determines that the plurality of departure points P5 to P6 constituting the departure point group G4 is a specific vehicle (a vehicle driven by a specific driver) based on the identification information recorded in the probe information. , the representative point of the departure point group G4 is specified as the entrance/exit point for a specific vehicle (for example, the entrance point of a specific parking lot) at the destination.
Here, in the case of FIG. 4 as an example, the setting unit 35 determines that the plurality of departure points P7 to P8 constituting the departure point group G5 are set to an unspecified number of vehicles (general drivers) based on the identification information recorded in the probe information. is generated by the vehicle driven by the driver), the representative point of the departure point group G5 may be specified as the entrance point of the vehicle used by the general driver at the destination (entrance point of the general parking lot).
Alternatively, the setting unit 35 may delete the departure point group G5 (the departure points P7 to P8) when it is determined that the departure points P7 to P8 constituting the departure point group G5 are generated by a vehicle driven by a general driver. may be

The setting unit 35 sets the representative point of the departure point groups G2 and G4 in the map information as the final guidance point for a specific vehicle corresponding to the destination recorded in the probe information. On the other hand, the setting unit 35 may set the representative point of the departure point group G5 in the map information as the final guidance point for a vehicle driven by a general driver corresponding to the destination recorded in the probe information. The setting unit 35 stores, for example, map information in which the final guidance point is set in the storage unit 32 .

Based on the time information included in the probe information, the setting unit 35 sets the representative point of the leaving point group to the destination when the specific vehicle leaves the link indicating the road in the leaving point group in a predetermined time period. may be specified as an entrance/exit point for a specific vehicle that can be used during a predetermined time period, and set in map information for navigation. The setting unit 35 may acquire the date and time when the vehicle 10 leaves the link indicating the road, that is, the date and time when the departure point is generated, based on the time information. If one or more departure points for the vehicle 10 are generated in a predetermined time period, the setting unit 35, for example, sets the representative point of the departure point group including the departure point to the vehicle 10 (specific vehicle). Identify the entrance point of a specific parking lot used by
Alternatively, the setting unit 35 may determine, based on the time information, whether the time at which the departure point was generated by the specific vehicle falls within a predetermined time period. In this case, the predetermined time period may be, for example, a time period outside the business hours of the facility at the destination. As a specific example, if the department store is open from 10:00 to 20:00, the predetermined time period is preset to be from 8:00 to 10:00. The predetermined time period may be set in advance as appropriate.

When the number of vehicles 10 that have left the link from the group of departure points is within a predetermined range, the setting unit 35 identifies the representative point of the group of departure points as an entrance/exit point for a specific vehicle at the destination, and determines the number of vehicles 10 for navigation. It may be set in the map information.
It is conceivable that a relatively large number of vehicles enter the entrance of a general parking lot used by facility users (general drivers). On the other hand, since only vehicles driven by the specific driver enter the entrance of the specific parking lot used by the specific driver, it is conceivable that a relatively small number of vehicles will enter.
When the number of departure points constituting the departure point group is within a predetermined range (predetermined number), the setting unit 35 selects a representative point of the departure point group as an entrance/exit point for a specific vehicle at the destination (for example, a specified parking lot entrance point). The predetermined range is appropriately set according to, for example, the number of vehicles entering the specific parking lot, the frequency with which the specific vehicle enters the specific parking lot, and the like. More specifically, the predetermined range may be, for example, a first predetermined number or more and a second predetermined number (second predetermined number>first predetermined number) or less. Also, the predetermined range may be, for example, equal to or greater than a first ratio of the number of probe information items and equal to or less than a second ratio (second ratio>first ratio) of the number of probe information items.

For example, the map information generation device 30 transmits the map information stored in the storage unit 32 as described above to the vehicle 10 via the communication unit 31 so that the navigation device of the vehicle 10 uses the map information. may
Also, the map information generation device 30 may record the map information in a recording medium such as an external memory or an optical disk, for example. In this case, the vehicle 10 may read the map information recorded on the recording medium and use the map information in the navigation device.

Next, a method for generating map information according to this embodiment will be described.
FIG. 5 is a flow chart illustrating a method for generating map information according to one embodiment.

In step ST101, the acquisition unit 33 acquires multiple pieces of probe information heading to the same destination. The acquisition unit 33 acquires, for example, probe information in which the destination is set within the area where the entrance of the parking lot is to be estimated.

In step ST102, the generation unit 34 identifies departure points where the vehicle 10 has left the link indicating the road based on the probe information acquired in step ST101, and generates a departure point group. For example, the generation unit 34 groups the destinations of the vehicle 10 recorded in the probe information, and generates a departure point group from the departure points corresponding to the grouped destinations.

In step ST<b>103 , when a facility is set as the destination, the specifying unit 36 specifies a parking lot related to the facility based on the correspondence stored in the storage unit 32 .

In step ST104, the exclusion unit 37 determines whether the departure point specified based on the probe information and the parking lot specified in step ST103 are adjacent to each other. If the leaving point and the parking lot are not adjacent to each other (No), the process proceeds to step ST105. If the leaving point and the parking lot are adjacent to each other (Yes), the process proceeds to step ST106.

In step ST105, the exclusion unit 37 excludes a specific departure point (the departure point P4 in the case illustrated in FIG. 3) from the departure point group.

In step ST106, based on the identification information recorded in the probe information acquired in step ST101, the setting unit 35 determines whether the departure points forming the departure point group have been generated by a specific vehicle.
A specific driver is considered to use the entrance/exit of a specific parking lot, for example. On the other hand, general drivers are considered to use the entrance/exit of a general parking lot, for example.
For example, in order to estimate the entrance/exit of a specific parking lot used by a specific driver, the setting unit 35, based on the identification information, selects a vehicle having a limited number of departure points (specific vehicle). If the departure point is generated by a specific vehicle (Yes), the process proceeds to step ST107. If the departure point is not generated by a specific vehicle (No), the process proceeds to step ST110.

In step ST107, the setting unit 35 determines whether a departure point is generated by a specific vehicle during a predetermined time period, based on the time information recorded in the probe information acquired in step ST101.
It is conceivable that the specific driver enters the specific parking lot during a certain time period (predetermined time period). In order to determine whether the vehicle 10 (vehicle 10 that generated the leaving point) entering the entrance/exit of the destination is a specific vehicle, the setting unit 35 determines whether the leaving point is created by a specific vehicle in a predetermined time period. judge. If the departure point was generated in the predetermined time period (Yes), the process proceeds to step ST108. If the departure point is not generated in the predetermined time period (No), the process proceeds to step ST110.

In step ST108, the setting unit 35 determines whether or not the number of vehicles 10 that have generated departure points forming the departure point group is within a predetermined range.
For example, it is conceivable that a relatively large number of vehicles enter the entrance of a general parking lot used by general drivers. On the other hand, for example, since only specific vehicles enter the entrance of a specific parking lot used by a specific driver, it is conceivable that a relatively small number of vehicles will enter.
The setting unit 35 determines the number of vehicles 10 that have generated a departure point (the number of vehicles 10 that have generated a departure point) (the number number of departure points) is within a predetermined range (predetermined number). If the number of vehicles 10 is within the predetermined range (Yes), the process proceeds to step ST109. If the number of vehicles 10 is not within the predetermined range (No), the process proceeds to step ST110.
Note that at least one of steps ST107 and ST108 may not be executed depending on the embodiment.

In step ST109, the setting unit 35 sets the representative point of the leaving point group generated in step ST102 as an entrance/exit point for a specific vehicle (for example, an entrance point of a specific parking lot) at the destination, and sets the map for navigation. Set to information.

In step ST110, the setting unit 35 sets the departure point group generated in step ST102 at the entrance of the destination of the vehicle driven by the general driver (for example, the entrance of the general parking lot), that is, at the entrance of the specific parking lot. It is assumed that there is no map information for navigation.

Next, the effects of this embodiment will be described.
The map information generation device 30 identifies a departure point where the vehicle 10 leaves the link indicating the road based on the acquisition unit 33 that acquires a plurality of probe information heading for the same destination, and the departure point group based on the probe information. When it is determined based on the generating unit 34 that generates and the identification information that the group of departure points is generated by leaving the link by a specific vehicle, the representative point of the group of departure points is set as the entrance point for the specific vehicle at the destination. and a setting unit 35 for setting map information for navigation.
As a result, the map information generation device 30 can set the map information as an entrance for a specific vehicle (for example, an entrance of a specific parking lot) at the destination based on the departure point.
Since the navigation device mounted on the vehicle 10 identifies the entrance of the specific parking lot by the map information generating device 30, it is possible to guide the specific driver to the entrance of the specific parking lot by using the map information. , it is possible to suppress guiding a general driver to the entrance of a specific parking lot. That is, the navigation device can enhance convenience for the driver.

In the map information generation device 30, based on the time information included in the probe information, the setting unit 35, if a specific vehicle leaves the link at the departure point group in a predetermined time period, determines the representative of the departure point group. The point may be specified as an entrance/exit point for a specific vehicle that can be used in a predetermined time period at the destination, and set in the map information for navigation.
The specific driver uses the entrance/exit of the destination during a predetermined time period according to, for example, the delivery time of the product to the facility as the destination and the time to go to work (for example, entering the entrance of the specific parking lot). there's a possibility that. Therefore, if the departure point is generated in a predetermined time period, the map information generation device 30 determines that the departure point is generated by a vehicle driven by a specific driver, and determines that the departure point is generated by a specific vehicle at the destination. You can specify the entrance and exit for

In the map information generation device 30, when the number of vehicles 10 that have left the link indicating the road from the group of departure points is within a predetermined range, the setting unit 35 sets the representative point of the group of departure points to a map for a specific vehicle at the destination. The entry/exit point may be specified and set in the map information for navigation.
For example, it is conceivable that a relatively large number of vehicles enter the entrance of a general parking lot used by general drivers. On the other hand, for example, since only specific vehicles enter the entrance of a specific parking lot used by a specific driver, it is conceivable that a relatively small number of vehicles will enter.
For this reason, when the number of departure points constituting the departure point group is within a predetermined range (predetermined number), the map information generation device 30 assumes that the departure point is generated by a vehicle driven by a specific driver. Entry and exit points for a particular vehicle at a destination can be identified.

The map information generation device 30 includes a storage unit 32 that stores in advance a correspondence relationship in which a facility set as a destination and a parking lot related to the facility is associated in advance, and when a facility is set as the destination, A specifying unit 36 that specifies a parking lot related to the facility based on the correspondence stored in the storage unit 32; and an exclusion unit 37 for excluding the departure point from the departure point group if the departure point is not included.
When setting a destination on a navigation device, the driver may, for example, set the destination using a famous nearby facility as a landmark instead of the original destination. Therefore, when the parking lot related to the facility and the departure point are not adjacent to each other, the map information generation device 30 excludes the departure point from the departure points.
In other words, the map information generation device 30 can remove, as noise, a departure point that is not a parking lot related to the facility as the destination. Therefore, the navigation device mounted on the vehicle 10 can guide a route to an appropriate position as a destination, thereby enhancing convenience for the user.

In the map information generation method, the computer acquires a plurality of pieces of probe information heading for the same destination, and based on the probe information, identifies the departure point where the vehicle 10 has left the link indicating the road, and generates the departure point group. and determining, based on the identification information, whether the group of departure points was generated by leaving the link by a particular vehicle, then the representative point of the group of departure points is the entrance/exit for the particular vehicle at the destination. and a setting step of setting map information for navigation.
As a result, the map information generation method can set the departure point in the map information as an entrance for a specific vehicle (for example, an entrance of a specific parking lot) at the destination based on the departure point.
Since the navigation device mounted on the vehicle 10 identifies the entrance of the specific parking lot by the map information generation method, it is possible to guide the specific driver to the entrance of the specific parking lot by using the map information. It is possible to suppress guiding a general driver to the entrance of a specific parking lot. That is, the navigation device can enhance convenience for the driver.

The map information generation program provides a computer with an acquisition function for acquiring a plurality of probe information heading for the same destination, and based on the probe information, specifies a departure point where the vehicle 10 has left a link indicating a road, and creates a departure point group. and the identification information, if it is determined that the group of departure points was generated by leaving the link by a specific vehicle, the representative point of the group of departure points is used as the entrance and exit for the specific vehicle at the destination. , and a setting function for setting map information for navigation.
As a result, the map information generation program can set the departure point in the map information as an entrance for a specific vehicle (for example, an entrance of a specific parking lot) at the destination.
Since the navigation device mounted on the vehicle 10 identifies the entrance of the specific parking lot by the map information generation program, the map information can be used to guide the specific driver to the entrance of the specific parking lot. It is possible to suppress guiding a general driver to the entrance of a specific parking lot. That is, the navigation device can enhance convenience for the driver.

Each unit of the map information generation device 30 described above may be implemented as a function of a computer processing unit or the like. That is, the acquisition unit 33, the generation unit 34, the setting unit 35, the identification unit 36, and the exclusion unit 37 of the map information generation device 30 perform the acquisition function, the generation function, the setting function, the specification function, and the exclusion unit by the arithmetic processing unit of the computer. Each may be implemented as a function.
The map information generation program can cause a computer to implement each function described above. The map information generation program may be recorded on a non-temporary computer-readable recording medium such as an external memory or an optical disc.
Further, as described above, each part of the map information generation device 30 may be realized by a computer processing device or the like. The arithmetic processing unit or the like is configured by an integrated circuit or the like, for example. Therefore, each part of the map information generation device 30 may be implemented as a circuit that constitutes an arithmetic processing device or the like. That is, as shown in FIG. 6, the acquisition unit 33, the generation unit 34, the setting unit 35, the identification unit 36, and the exclusion unit 37 of the map information generation device 30 include an acquisition circuit 33a, It may be realized as a generating circuit 34a, a setting circuit 35a, a specifying circuit 36a and an exclusion circuit 37a.
Also, the communication unit 31 and the storage unit 32 of the map information generation device 30 may be realized as a communication circuit 31a and a storage circuit 32a as shown in FIG. 6 by being configured by an integrated circuit or the like. Also, the communication unit 31 and the storage unit 32 of the map information generation device 30 may be configured as a communication device and a storage device, for example, by being configured by a plurality of devices.

1 Map information generation system 10 Vehicle 20 Server 30 Map information generation device 31 Communication unit 32 Storage unit 33 Acquisition unit 34 Generation unit 35 Setting unit 36 Identification unit 37 Exclusion unit L Links indicating roads G2, G4, G5 Leaving point group P1~ P8 Departure point

Claims (12)

An acquisition unit that acquires a plurality of probe information heading for the same destination, including at least traveling position information about the traveling position of the vehicle and identification information for identifying the vehicle,
a generation unit that identifies a departure point where the vehicle has left a link indicating a road based on the probe information acquired by the acquisition unit and generates a departure point group;
If it is determined based on the identification information that the departure point is generated by an unspecified number of general vehicles driven by a general driver and different from the specific vehicle, the departure point of the general vehicle is separated from the departure point group. Then, it is determined that the group of departure points was generated by leaving the link by a specific vehicle, and the representative point of the group of departure points is used as an entrance/exit point for the specific vehicle at the destination, and the a setting unit for setting map information;
A map information generation device comprising: The probe information includes time information,
Based on the time information included in the probe information, the setting unit selects a representative point of the departure point group when the specific vehicle has left the link in the departure point group in a predetermined time period. 2. The map information generating apparatus according to claim 1, wherein the map information for navigation is set as an entry/exit point for the specific vehicle that can be used at the destination during the predetermined time period. When the number of vehicles that have left the link in the group of departure points is within a predetermined range, the setting unit sets a representative point of the group of departure points as an entrance/exit point for the specific vehicle in the destination. 3. The map information generation device according to claim 1 or 2, wherein the map information is set in the map information of . a storage unit that stores in advance a correspondence relationship in which a facility set as a destination and a parking lot related to the facility are associated in advance;
a specifying unit that specifies the parking lot related to the facility based on the correspondence stored in the storage unit when the facility is set as a destination;
an exclusion unit for excluding the departure point from the group of departure points when the departure point identified based on the probe information is not adjacent to the parking lot identified by the identification unit;
The map information generation device according to any one of claims 1 to 3, comprising: the computer
An acquisition step of acquiring a plurality of probe information heading for the same destination, including at least traveling position information about the traveling position of the vehicle and identification information for identifying the vehicle;
a generation step of identifying a departure point where the vehicle has left a link indicating a road based on the probe information acquired in the acquisition step, and generating a departure point group;
If it is determined based on the identification information that the departure point is generated by an unspecified number of general vehicles driven by a general driver and different from the specific vehicle, the departure point of the general vehicle is separated from the departure point group. Then, it is determined that the group of departure points is generated by leaving the link by a specific vehicle, and the representative point of the group of departure points is used as an entrance/exit point for the specific vehicle in the destination, and the a setting step for setting map information;
Map information generation method that executes. The probe information includes time information,
In the setting step, based on the time information included in the probe information, when the specific vehicle has left the link at the leaving point group in a predetermined time period, the representative point of the leaving point group is selected. 6. The method of generating map information according to claim 5, wherein the map information for navigation is set as an entrance/exit point for the specific vehicle that can be used at the destination during the predetermined time period. In the setting step, when the number of vehicles that have left the link in the group of departure points is within a predetermined range, a representative point of the group of departure points is set as an entrance/exit point for the specific vehicle in the destination. 7. The map information generation method according to claim 5 or 6, wherein the map information is set in the map information of the computer
a storage step of pre-storing in a storage unit a correspondence relationship in which a facility set as a destination and a parking lot related to the facility are associated in advance;
a specifying step of specifying, when the facility is set as a destination, the parking lot related to the facility based on the correspondence stored in the storing step;
an exclusion step of excluding the departure point from the group of departure points when the departure point identified based on the probe information is not adjacent to the parking lot identified in the identification step;
The map information generation method according to any one of claims 5 to 7, wherein to the computer,
An acquisition function that acquires a plurality of probe information heading for the same destination, including at least traveling position information about the traveling position of the vehicle and identification information for identifying the vehicle,
a generation function that identifies a departure point where the vehicle has left a link indicating a road based on the probe information acquired by the acquisition function, and generates a departure point group;
If it is determined based on the identification information that the departure point is generated by an unspecified number of general vehicles driven by a general driver and different from the specific vehicle, the departure point of the general vehicle is separated from the departure point group. Then, it is determined that the group of departure points was generated by leaving the link by a specific vehicle, and the representative point of the group of departure points is used as an entrance/exit point for the specific vehicle at the destination, and the A setting function for setting map information,
A map information generation program that realizes The probe information includes time information,
The setting function determines, based on the time information included in the probe information, the representative point of the departure point group when the specific vehicle has left the link in the departure point group during a predetermined time period. 10. The map information generating program according to claim 9, wherein the map information for navigation is set as an entrance/exit point for the specific vehicle that can be used at the destination during the predetermined time period. The setting function sets a representative point of the departure point group as an entrance/exit point for the specific vehicle at the destination when the number of vehicles that have left the link in the departure point group is within a predetermined range. 11. The map information generation program according to claim 9 or 10, which is set in the map information of . to the computer,
a storage function for pre-storing in a storage unit a correspondence relationship in which a facility set as a destination and a parking lot related to the facility are associated in advance;
a specifying function for specifying the parking lot related to the facility based on the correspondence stored in the storage function when the facility is set as a destination;
an exclusion function for excluding the departure point from the group of departure points when the departure point identified based on the probe information is not adjacent to the parking lot identified by the identification function;
The map information generation program according to any one of claims 9 to 11, which implements

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