JP2019095285A - Map server device and map distribution method - Google Patents

Abstract

To limit map data to be able to perform distribution and charging.SOLUTION: A standard map storage unit 221 stores standard map data showing standard roads. An area map storage unit 222 stores area map data showing area roads for each area. A communication unit 223 receives a distribution request showing a destination. An extraction unit 213 extracts destination road data showing a destination road from the area map data of a destination area including the destination. A distribution unit 214 distributes the destination road data to a request source. A charging unit 215 performs charging processing about the destination road data. The destination road is a portion included in a route, in the area roads of the destination area, from the exit of the standard road in the destination area to the destination.SELECTED DRAWING: Figure 2

Description

  The present invention relates to distribution of map data.

Dynamic maps have been developed and maintained for freeways since fiscal 2015.
A dynamic map is a high-precision three-dimensional map including dynamic information, semi-dynamic information, quasi-static information and static information.
The static information of the dynamic map identifies the lanes of the road with an accuracy of a few centimeters to a few tens of centimeters.

A car corresponding to the dynamic map can drive automatically.
The vehicle is equipped with sensors such as a camera and a radar. The information obtained by each sensor is then compared with the information obtained from the dynamic map (information such as lanes and road features). This makes it possible to recognize the exact position of the vehicle. As a result, the performance of automatic operation control is improved.

Patent Document 1 shows a form of automatic operation control using a dynamic map.
Development and maintenance of dynamic maps for general roads are required in preparation for the spread of autonomous vehicles in the future.

Patent Document 2 shows a form of maintenance of a dynamic map.
In the Mobile Mapping System (MMS), the measurement vehicle collects 3D point cloud information of the road, and the 3D point cloud information obtains linearized data of the road and feature. Then, based on the obtained linearization data, a dynamic map is generated. The generated dynamic map is distributed to map companies and automobile companies.
In order to proceed with the development of the dynamic map, it is necessary to travel a long distance by a measuring vehicle.

The invention according to Patent Document 3 is to notify that there is a part that can not be operated automatically in the guidance route when high precision map data is not provided in a part of the guidance route.
The object of the invention according to Patent Document 3 is to eliminate the driver's sense of incongruity caused in a situation where an area in which high precision map data is maintained and an area in which high precision map data is not maintained are mixed. .
Such discomfort can be eliminated if the development of a dynamic map for general roads is advanced.

Patent Document 4 discloses a technique for improving the efficiency of a partial update operation of data for map display.
In order to promote the spread of dynamic maps, it is necessary to simplify the work of updating dynamic maps.

Patent Document 5 discloses a method for improving the convenience of the user in displaying guide information at the time of route search. Specifically, guidance information for guiding the area of interest along with the route is displayed. As a result, the user can select various actions at the time of movement from the departure place to the destination, such as stopping at a notable area that does not exist on the route.
Improvements in user convenience are also required for the development of dynamic maps.

International Publication 2017/150059 International Publication 2017/110801 JP, 2016-200472, A International Publication No. 2005/088584 Unexamined-Japanese-Patent No. 2009-222572

  An object of the present invention is to enable distribution and charging with limited map data.

The map server device of the present invention is
A standard map storage unit for storing standard map data representing a standard road;
An area map storage unit for storing area map data representing an area road that is a road different from the standard road, for each area;
A communication unit that receives a distribution request indicating a destination;
An extraction unit for extracting destination road data representing a destination road from area map data of a destination area including the destination;
A delivery unit for delivering the destination road data to a request source;
And a charging unit for charging the destination road data when the destination road data is distributed.
The destination road is a portion included in the route from the exit of the standard road in the destination area to the destination in the regional road in the destination area.

  According to the present invention, map data can be limited for distribution and billing.

BRIEF DESCRIPTION OF THE DRAWINGS The block diagram of the map delivery system 100 in Embodiment 1. FIG. FIG. 2 is a block diagram of a map server device 200 according to the first embodiment. FIG. 2 is a block diagram of a car-mounted terminal 120 in the first embodiment. FIG. 2 shows a standard map 310 according to the first embodiment. FIG. 2 is a diagram showing a region map 320 in the first embodiment. FIG. 2 shows a departure area 330 and a destination area 340 in Embodiment 1. FIG. 2 is a diagram showing a departure road 332 in the first embodiment. FIG. 2 shows a destination road 342 in the first embodiment. 6 is a flowchart of a map management method in Embodiment 1; 6 is a flowchart of a map distribution method according to Embodiment 1. 6 is a flowchart of a specific example of the map distribution method according to the first embodiment. 6 is a flowchart of a specific example of the map distribution method according to the first embodiment. FIG. 6 is a diagram showing an area list screen 401 in the first embodiment. FIG. 6 is a diagram showing a candidate site list screen 402 in the first embodiment. FIG. 6 is a diagram showing an invitation site list screen 403 in the first embodiment.

  In the embodiments and the drawings, the same elements and corresponding elements are denoted by the same reference numerals. Descriptions of elements with the same reference numerals will be omitted or simplified as appropriate. Arrows in the figure mainly indicate the flow of data or the flow of processing.

Embodiment 1
The map distribution system 100 will be described based on FIG. 1 to FIG.

*** Description of the configuration ***
The configuration of the map distribution system 100 will be described based on FIG.
The map distribution system 100 includes a map server device 200.
The map server device 200 distributes map data to the on-vehicle terminal 120 via the network 101. A specific network 101 is the Internet.
Specifically, standard map data and regional map data are distributed. Standard map data and area map data correspond to static information of a dynamic map and are used for automatic driving.
Details of the standard map data and the area map data will be described later.

The on-vehicle terminal 120 is a computer mounted on the vehicle 110.
Specifically, the vehicle 110 is an autonomous driving vehicle, and the on-vehicle terminal 120 is an autonomous driving device.

The configuration of the map server device 200 will be described based on FIG.
The map server device 200 is a computer including hardware such as a processor 201, a memory 202, an auxiliary storage device 203, a communication device 204, and an input / output interface 205. These pieces of hardware are connected to each other via signal lines.

The processor 201 is an integrated circuit (IC) that performs arithmetic processing, and controls other hardware. For example, the processor 201 is a central processing unit (CPU), a digital signal processor (DSP), or a graphics processing unit (GPU).
The memory 202 is a volatile storage device. The memory 202 is also referred to as main storage or main memory. For example, the memory 202 is a random access memory (RAM). The data stored in the memory 202 is stored in the auxiliary storage device 203 as needed.
The auxiliary storage device 203 is a non-volatile storage device. For example, the auxiliary storage device 203 is a read only memory (ROM), a hard disk drive (HDD), or a flash memory. The data stored in the auxiliary storage device 203 is loaded into the memory 202 as needed.
The communication device 204 is a receiver and a transmitter. For example, the communication device 204 is a communication chip or a NIC (Network Interface Card).
The input / output interface 205 is a port to which an input / output device is connected. For example, the input / output interface 205 is a USB terminal. USB is an abbreviation for Universal Serial Bus.

  The map server device 200 includes elements such as an area map acquisition unit 210, an area map management unit 211, a control unit 212, an extraction unit 213, a distribution unit 214, and a charging unit 215. These elements are realized by software.

In the auxiliary storage unit 903, the area map acquisition unit 210, the area map management unit 211, the control unit 212, the extraction unit 213, the distribution unit 214, the charging unit 215, the standard map storage unit 221, the area map storage unit 222, and the communication unit 223 A map server program for causing a computer to function as the reception unit 224 is stored. The map server program is loaded into memory 202 and executed by processor 201.
Furthermore, an OS (Operating System) is stored in the auxiliary storage device 203. At least a portion of the OS is loaded into the memory 202 and executed by the processor 201.
That is, the processor 201 executes the map server program while executing the OS.
Data obtained by executing the map server program is stored in a storage device such as a memory 202, an auxiliary storage device 203, a register in the processor 201 or a cache memory in the processor 201.

The auxiliary storage device 203 functions as a standard map storage unit 221 and an area map storage unit 222. However, other storage devices may function as the standard map storage unit 221 and the area map storage unit 222 instead of the auxiliary storage device 203 or together with the memory 202.
The communication device 204 functions as the communication unit 223.
The input / output interface 205 functions as the reception unit 224.

  The map server device 200 may include a plurality of processors that replace the processor 201. The plurality of processors share the role of the processor 201.

  The map server program can be recorded (stored) in a computer readable manner on a non-volatile storage medium such as an optical disk or flash memory.

The configuration of the on-vehicle terminal 120 will be described based on FIG.
The on-vehicle terminal 120 is a computer including hardware such as a processor 1201, a memory 1202, an auxiliary storage device 1203, and a communication device 1204. These pieces of hardware are connected to each other via signal lines.

The processor 1201 is an IC that performs arithmetic processing, and controls other hardware. For example, the processor 1201 is a CPU, a DSP, or a GPU.
The memory 1202 is a volatile storage device. The memory 1202 is also referred to as a main storage device or a main memory. For example, the memory 1202 is a RAM. The data stored in the memory 1202 is stored in the auxiliary storage device 1203 as needed.
The auxiliary storage device 1203 is a non-volatile storage device. For example, the auxiliary storage device 1203 is a ROM, an HDD, or a flash memory. The data stored in the auxiliary storage device 1203 is loaded into the memory 1202 as needed.
The communication device 1204 is a receiver and a transmitter. For example, the communication device 1204 is a communication chip or a NIC.
The input / output interface 1205 is a port to which an input / output device is connected. For example, the input / output interface 1205 is a USB terminal.

  The on-vehicle terminal 120 includes elements such as a control unit 1211 and an automatic driving unit 1212. These elements are realized by software.

The auxiliary storage device 1203 stores an in-vehicle program for causing a computer to function as the control unit 1211, the automatic operation unit 1212, the storage unit 1221, the communication unit 1222, and the receiving unit 1223. The onboard program is loaded into the memory 1202 and executed by the processor 1201.
Further, an OS is stored in the auxiliary storage device 1203. At least a portion of the OS is loaded into memory 1202 and executed by processor 1201.
That is, the processor 1201 executes the in-vehicle program while executing the OS.
Data obtained by executing the in-vehicle program is stored in a storage device such as a memory 1202, an auxiliary storage device 1203, a register in the processor 1201 or a cache memory in the processor 1201.

The auxiliary storage device 1203 functions as a storage unit 1221. However, another storage device may function as the storage unit 1221 instead of the auxiliary storage device 1203 or together with the auxiliary storage device 1203.
The communication device 1204 functions as the communication unit 1222.
The input / output interface 1205 functions as the reception unit 1223.

  The on-vehicle terminal 120 may include multiple processors that replace the processor 1201. The multiple processors share the role of the processor 1201.

  The in-vehicle program can be recorded (stored) in a computer-readable manner on a non-volatile recording medium such as an optical disk or a flash memory.

The standard map data will be described based on FIG.
Standard map data is data of the standard map 310.
The standard map 310 is divided by meshes. The data of each mesh is called standard area data. That is, the standard map data consists of a plurality of standard area data.

The standard map 310 is a map representing the standard road 311.
The standard road 311 is a road connecting the areas (301A, 301B).
Specifically, the standard road 311 is a highway. In addition, areas (301A, 301B) are prefectures or cities, towns and villages.

The standard road 311 is measured in advance by a mobile mapping system (MMS).
The standard map data is stored in advance in the standard map storage unit 221. Further, the standard map data is distributed to the on-vehicle terminal 120 in advance and stored in the storage unit 1221.

The area map data will be described based on FIG.
The area map data is data of the area map (320A, 320B).
The regional maps (320A, 320B) are separated by meshes. The data of each mesh is called regional area data. In other words, the area map data consists of a plurality of area data.

The area map (320A, 320B) is a map representing the area road (321A, 321B).
The regional roads (321A, 321B) are roads measured in the area (301A, 301B) by the mobile mapping system.
Specifically, regional roads (321A, 321B) are general roads and regional toll roads.

Area map data is generated for each area. Then, the area map data is stored in the area map storage unit 222 for each area.
When a new area is measured by the mobile mapping system, the area map data is added to the area map storage unit 222.

Regional area data is generated for each area. Then, the area data is stored in the area map storage unit 222 for each area.
Regional area data is added to the regional map data when a new area is measured by the mobile mapping system.

The departure area 330 and the destination area 340 will be described based on FIG.
The departure area 330 is an area including the departure place 331.
The departure point 331 is a place where the vehicle 110 departs. For example, the departure place 331 is a home.

The destination area 340 is an area including the destination 341.
The destination 341 is a place to which the vehicle 110 is aiming. For example, the destination 341 is a sightseeing spot or accommodation facility.

The departure road 332 will be described based on FIG.
The origin road 332 is part of a regional road in the departure area 330.
Specifically, the departure road 332 is a part included in the route from the departure point 331 to the entrance 312.

  The entrance 312 is an entrance of the standard road 311 in the departure area 330.

The start point 333 is the start point of the regional road. For example, the starting point 333 is a station.
The road from the departure point 331 to the start point 333 is not measured by the mobile mapping system.

The destination road 342 will be described based on FIG.
The destination road 342 is part of a regional road in the target area 340.
Specifically, the destination road 342 is a part included in the route from the exit 313 to the destination 341.

  The exit 313 is an exit of the standard road 311 in the destination area 340.

  The invitation site 343 is a place where it is desired to guide the vehicle 110 for regional promotion or tourism promotion. For example, the solicitation site 343 is a sightseeing spot.

The invitation site road 344 is part of a regional road in the target area 340.
Specifically, the invitation site road 344 is a portion from the middle of the destination road 342 to the invitation site 343.

*** Description of operation ***
The map management method will be described based on FIG.
The map management method is a method of managing regional map data.

  In step S101, the area map acquisition unit 210 acquires area map data for each area.

For example, step S101 is performed in the following procedure.
First, the measurement vehicle of the mobile mapping system measures the roads in the area.
Next, the administrator inputs various measurement data obtained by the measurement vehicle to the map server device 200. The accepting unit 224 accepts various input measurement data.
Next, the area map acquisition unit 210 generates three-dimensional road data based on various measurement data. The three-dimensional road data is three-dimensional point cloud data representing the position and shape of the road.
Then, the area map acquisition unit 210 generates area map data based on the three-dimensional road data.

In step S102, the area map management unit 211 stores a storage area for storing the acquired area map data each time the area map data of each area is acquired (specifically, the auxiliary storage apparatus 203). To secure.
Then, the area map management unit 211 allocates the secured storage area to the area map storage unit 222. That is, the area map management unit 211 adds the secured storage area to the area map storage unit 222. The storage area added to the area map storage unit 222 is called an additional area.

In step S103, the area map storage unit 222 stores the acquired area map data each time the area map data of each area is acquired.
Specifically, the area map storage unit 222 stores the acquired area map data in the additional area.

  In the description of steps S101 to S103, the area map data may be replaced with area data.

The map distribution method will be described based on FIG.
The map distribution method is a method of distributing necessary regional map data.
The procedure of the map delivery method corresponds to the procedure of the map delivery program (an example of the map server program).

In step S111, the communication unit 223 receives the distribution request.
The delivery request is data indicating the departure point 331, the destination point 341, and the solicitation point 343. The distribution request may be two or more pieces of data.
Specifically, the communication unit 1222 of the on-board terminal 120 transmits a distribution request. Then, the communication unit 223 of the map server device 200 receives the distribution request.

  In step S112, the extraction unit 213 extracts each road data based on the distribution request.

The extraction unit 213 extracts departure road data as follows. The departure road data is data representing the departure road 332. Specifically, the departure road data is area data of an area including at least a part of the departure road 332.
First, the extraction unit 213 selects area map data of the departure area 330 from the area map storage unit 222.
Next, the extraction unit 213 determines the departure road 332 based on the area map data of the departure area 330.
Then, the extraction unit 213 extracts departure road data from the area map data of the departure area 330.

The extraction unit 213 extracts destination road data as follows. Destination road data is data representing a destination road 342. Specifically, the destination road data is area data of an area including at least a part of the destination road 342.
First, the extraction unit 213 selects area map data of the target area 340 from the area map storage unit 222.
Next, the extraction unit 213 determines the destination road 342 based on the area map data of the target area 340.
Then, the extraction unit 213 extracts destination road data from the area map data of the target area 340.

The extraction unit 213 extracts solicitation site road data as follows. The invitation site road data is data representing the invitation site road 344. Specifically, the invitation site road data is regional area data of an area including at least a part of the invitation site road 344.
First, the extraction unit 213 selects area map data of the target area 340 from the area map storage unit 222.
Next, the extraction unit 213 determines the solicitation site road 344 based on the area map data of the target area 340.
Then, the extraction unit 213 extracts solicitation site road data from the area map data of the target area 340.

In step S113, the distribution unit 214 distributes each road data to the request source.
Specifically, the distribution unit 214 transmits the departure road data, the destination road data, and the solicitation road data to the on-vehicle terminal 120 via the communication device 204.

Step S114 shows a charging method.
In step S114, the charging unit 215 performs charging processing for each road data.
When departure point road data is distributed, the charging unit 215 performs charge processing for departure point road data.
In the charging process, the charging unit 215 charges the charge of the departure place road data to the request source user. Alternatively, the charging unit 215 charges the charge of the departure point road data to the provider who provided the area map data of the departure area 330.

When the destination road data is distributed, the charging unit 215 performs charging processing for the destination road data.
In the charging process, the charging unit 215 charges the charge of the destination road data to the user of the request source. Alternatively, the charging unit 215 charges the charge for the destination road data to the provider who provided the area map data of the destination area 340.

When the solicited area road data is distributed, the charging unit 215 performs a charging process for the solicited area road data.
In the charging process, the charging unit 215 charges the charge of the solicited area road data to the request source user. Alternatively, the charging unit 215 charges the charge for the solicited area road data to the provider who provided the area map data of the destination area 340.

Charges are made electronically.
One example of the charging method is flat-rate charging and usage-based charging.
The charging party (user or provider) is predetermined.
The request source is the on-vehicle terminal 120.
A provider is a person who provided measurement data as a source of map data. For example, the provider is a local government in a region.

A specific example of the map distribution method will be described based on FIGS. 11 and 12.
In step S201 (see FIG. 11), the reception unit 1223 of the on-vehicle terminal 120 receives the start instruction.
The start instruction is an instruction for starting the map distribution service.

  For example, the control unit 1211 displays a start button on the display of the car navigation system. The user presses the start button by operating the car navigation system. Then, the reception unit 1223 detects pressing of the start button.

In step S202, the communication unit 1222 of the on-board terminal 120 transmits the area request to the map distribution system 100.
The area request is a request for knowing the area targeted by the map distribution service.

In step S203, the communication unit 223 of the map server device 200 receives the area request.
When a regional request is received, the control unit 212 generates a regional response including a regional list. Then, the control unit 212 transmits an area response to the on-vehicle terminal 120 via the communication unit 223.
The area list is stored in the area map storage unit 222.

In step S204, the communication unit 1222 of the on-board terminal 120 receives the regional response.
Next, the control unit 1211 acquires the area list from the area response, and displays the area list on the display.
Then, the reception unit 1223 receives the target area 340 selected from the area list.

An area list screen 401 is shown in FIG.
The area list screen 401 is a screen showing an area list.
For example, the control unit 1211 displays the area list screen 401 on the display of the car navigation system. The user selects the destination area 340 by operating the car navigation system. Then, the receiving unit 1223 receives the selected destination area 340.

Returning to FIG. 11, the description will continue from step S205.
In step S205, the communication unit 1222 of the on-board terminal 120 transmits a candidate location request including the name of the destination area 340 to the map server device 200.

In step S206, the communication unit 223 of the map server device 200 receives the candidate site request.
When the candidate site request is received, the control unit 212 generates a candidate site response including the candidate site list of the target area 340. Then, the control unit 212 transmits the candidate location response to the on-vehicle terminal 120 via the communication unit 223.
The candidate site list is a list of destination candidates.
The candidate site list of each area is stored in the area map storage unit 222.

In step S207, the communication unit 1222 of the on-board terminal 120 receives the candidate site response.
Next, the control unit 1211 acquires a candidate site list from the candidate site response, and displays the candidate site list on the display.
Then, the reception unit 1223 receives the destination 341 selected from the candidate site list.

The candidate place list screen 402 is shown in FIG.
The candidate site list screen 402 is a screen showing a candidate site list.
For example, the control unit 1211 displays the candidate site list screen 402 on the display of the car navigation system. The user selects a destination 341 by operating the car navigation system. Then, the reception unit 1223 receives the selected destination 341.

Returning to FIG. 11, the description will continue from step S208.
In step S208, the communication unit 1222 of the on-vehicle terminal 120 transmits a route notification (an example of a distribution request) to the map server device 200.
The route notification indicates route information such as the departure point 331 and the destination point 341. The departure point 331 is obtained from a car navigation system. The route information may be information indicating a moving route from the departure point 331 to the destination 341. The movement path is obtained from a car navigation system.

In step S209, the communication unit 223 of the map server device 200 receives the route notification.
When the route notification is received, the control unit 212 acquires route information from the route notification and registers the route information in the memory 202. Specifically, the control unit 212 stores the route information in the memory 202 (information storage unit) in association with the identifier of the in-vehicle terminal 120.

In step S210, the control unit 212 transmits a registration notification to the on-vehicle terminal 120 via the communication unit 223.
Then, the communication unit 1222 of the on-vehicle terminal 120 receives the registration notification.

In step S211, the control unit 212 selects one or more solicited places 343 from the area map data of the target area 340 based on the destination 341. Specifically, the control unit 212 selects an invitation place 343 existing around the destination 341.
Next, the control unit 212 generates an invitation request including the invitation place list. The solicitation site list indicates the selected solicitation sites 343.
Then, the control unit 212 transmits the solicitation request to the on-vehicle terminal 120 via the communication unit 223.

In step S212, the communication unit 1222 of the on-board terminal 120 receives the solicitation request.
Next, the control unit 1211 acquires a solicited place list from the solicitation request, and displays the solicited place list on the display.
Then, the reception unit 1223 receives the solicitation site 343 selected from the solicitation site list. The solicited place 343 to be accepted is called a stop-in place.

The solicited place list screen 403 is shown in FIG.
The solicited place list screen 403 is a screen showing a solicited place list.
For example, the control unit 1211 causes the display of the car navigation system to display an invitation site list screen 403. The user operates the car navigation system to select the solicitation site 343 (drop-in site) from the solicitation site list. Then, the reception unit 1223 receives the selected solicitation site 343 (drop-in place).

Returning to FIG. 11, the description will continue from step S213.
In step S213, the communication unit 1222 of the on-vehicle terminal 120 transmits, to the map server device 200, an invitation response (an example of a distribution request) including the name of the stop location.

In step S214, the communication unit 223 of the map server device 200 receives the solicitation response.
When the solicitation response is received, the control unit 212 acquires the name of the stop-off place from the solicitation response. Then, the control unit 212 adds the name of the stop location to the route information associated with the identifier of the on-vehicle terminal 120.

In step S221, the extraction unit 213 determines the area order based on the route information. The route information indicates the departure place 331, the destination 341, and the drop-in place (solicitation place 343).
The area order is the order of the traveling area.
The travel area is an area (a standard area and an area area) in which the vehicle 110 travels.

Specifically, the extraction unit 213 determines the area order as follows.
First, the extraction unit 213 selects the area map data of the departure area 330 from the area map storage unit 222, and determines the departure road 332 based on the area map data of the departure area 330.
Next, the extraction unit 213 determines the standard road 311 from the entrance 312 to the exit 313 based on the standard map data.
Next, the extraction unit 213 selects the area map data of the target area 340 from the area map storage section 222, and determines the destination road 342 and the solicited area road 344 based on the area map data of the target area 340.
Then, the extraction unit 213 determines the traveling area and the area order based on the departure road 332, the standard road 311, the destination road 342, and the invitation road 344.

In step S 222, the control unit 212 transmits a version request to the on-vehicle terminal 120 via the communication unit 223.
The version request includes an area identifier for each standard area corresponding to the running area.

In step S223, the communication unit 1222 of the on-board terminal 120 receives the version request.
Next, the control unit 1211 selects standard area data from the standard map data on the terminal side for each area identifier included in the version request, and acquires a version number from the selected standard area data. The standard map data on the terminal side is the standard map data stored in the storage unit 1221.
Then, the control unit 1211 transmits a version response to the map server device 200 via the communication unit 1222.
The version response includes area information for each standard area corresponding to the traveling area.
The area information includes an area identifier and a version number.

In step S224, the communication unit 223 of the map server device 200 receives the version response.
When a version response is received, the control unit 212 confirms whether the terminal-side version number is a valid version number for each area information included in the version response. The terminal side version number is a version number included in the area information. A valid version number is a version number of standard area data permitted to be used for automatic driving. For example, the latest version number is a valid version number.
Specifically, the control unit 212 compares the terminal-side version number with the version list. The version list shows valid version numbers. If the terminal-side version number is not included in the version list, the terminal-side version number is an invalid version number.

  Steps S225 and S227 are executed when at least one of the terminal-side version numbers is an invalid version number.

In step S225, the extraction unit 213 of the map server device 200 performs the following processing for each invalid terminal version.
First, the extraction unit 213 acquires the area identifier from the area information including the invalid terminal version number.
Then, the extraction unit 213 extracts standard area data of the area identified by the acquired area identifier from the standard map data.

The distribution unit 214 of the map server device 200 transmits the update data to the on-vehicle terminal 120 via the communication unit 223.
The update data includes update information for each of the extracted standard area data.
The update information includes standard area data and an area identifier.

In step S226, the communication unit 1222 of the on-vehicle terminal 120 receives the update data.
Then, the control unit 1211 updates the standard area data on the terminal side for each of the update information included in the update data.
Specifically, the control unit 1211 transmits standard area data (invalid standard area data) on the terminal side identified by the area identifier included in the update information to standard area data (valid standard area data) included in the update information. Update with).

In step S231, the extraction unit 213 of the map server device 200 determines the distribution order based on the area order.
The delivery order is the order of regional areas in the regional order.

  Steps S232 to S234 are performed for each area included in the distribution order.

In step S232, the extraction unit 213 of the map server device 200 selects one area area according to the distribution order, and area area data from the area map data for the selected area area (origin road data, destination road data or solicitation area An example of road data is extracted.
Then, the distribution unit 214 of the map server device 200 transmits the extracted area data to the on-vehicle terminal 120.

In step S233, the communication unit 1222 of the on-vehicle terminal 120 receives the area data.
Then, the storage unit 1221 stores the received area data.

When the vehicle 110 travels on the standard road 311, the automatic driving unit 1212 performs the automatic driving of the vehicle 110 based on the standard area data.
When the vehicle 110 is traveling on the departure road 332, the destination road 342 or the invitation road 344, the automatic driving unit 1212 automatically drives the vehicle 110 based on the area data.

In step S234, the communication unit 1222 of the on-vehicle terminal 120 transmits a reception notification to the map server device 200.
The communication unit 223 of the map server device 200 receives the reception notification.

  Step S235 is performed after regional area data is distributed for all the regional areas included in the distribution order.

  In step S235, the control unit 212 of the map server device 200 deletes the route information associated with the identifier of the on-vehicle terminal 120 from the memory 202.

In step S236, the charging unit 215 of the map server device 200 performs charging processing for each of the distributed area data.
Specifically, the charging unit 215 specifies the user based on the identifier of the on-board terminal 120, and charges the user for the charge of the area data.
Alternatively, the charging unit 215 selects the municipality corresponding to the regional area data from the municipality list, and charges the municipality for the charge of the regional area data.

*** Effect of Embodiment 1 ***
The standard map data and the area map data are stored in different areas (the standard map storage unit 221 and the area map storage unit 222). Furthermore, the area map storage unit 222 stores the area for storing the area map data in each area. To secure.
Therefore, it is not necessary to secure an area for storing area map data of all areas in advance. Thereby, the storage area of the map server device 200 can be saved.

  Area map data is distributed for each area area data. This can prevent the distribution of unnecessary area data. Then, the storage area of the on-vehicle terminal 120 can be saved.

The map server device 200 distributes solicitation site road data. Therefore, the vehicle 110 can travel to the invitation site 343 by automatic driving. As a result, the movement to the invitation site 343 is facilitated, and the number of people who stop by the invitation site 343 increases. As a result, the area is activated.
In other words, the more roads that are measured by the mobile mapping system, the more it leads to regional revitalization. Therefore, it is expected that each local government performs road measurement voluntarily. As a result, more roads will be measured and more roads will be able to drive automatically.

  It is possible to charge the user or provider for use of the distributed regional map data.

*** Other configuration ***
The delivery unit may not be regional area data. That is, the area map data may not be distributed for each area data.
For example, the distribution unit may be a component of regional data (such as links and nodes). That is, the area map data may be distributed for each of the divided components.

A map related system may exist.
The map related system relays map data between the map server device 200 and the on-vehicle terminal 120. Map data is distributed via a map related system.
For example, the map related system is a system used by a map company, a car company or a navigation system company.

  The area request, the candidate site request or the distribution request may be transmitted not by the on-vehicle terminal 120 but by a user terminal such as a smartphone or a tablet computer.

The on-vehicle terminal 120 may store map data (destination road data) corresponding to the destination 341.
Therefore, the on-vehicle terminal 120 may request delivery of destination road data only when the destination road data is not stored.
In addition, when the requested destination road data is not present, the map server device 200 may notify the on-vehicle terminal 120 that the data can not be distributed.

The charging unit 215 may count the number of times of distribution for each area map data (area data), collect the charges according to the number of times of distribution, and charge the local government.
In addition, the charging unit 215 may notify the number of distributions to the local government. For example, the charging unit 215 transmits a distribution notification to a predetermined terminal or address. The delivery notification indicates the number of deliveries.
The local government can know the use situation of area map data (area data) by confirming the number of times of distribution. Then, the local government can use the utilization status of the area map data (area area data) for the area promotion plan.

The charging unit 215 may select a charging destination (user or provider) based on the area corresponding to the distributed area map data.
Specifically, a charging destination list indicating charging destinations for each area is stored in advance in the memory 202 (information storage unit). The charging unit 215 selects an area corresponding to the distributed area map data from the charging destination list. Then, the charging unit 215 charges the charging destination corresponding to the selected area.

Second Embodiment
The difference between the embodiment in which the vehicle 110 is a rental car and the first embodiment will be mainly described.

*** Description of the configuration ***
The vehicle 110 is a rental car.
Area map data of the rental area is distributed to the on-vehicle terminal 120 in advance.
The rental area is an area where the vehicle 110 is lent out.

*** Description of operation ***
The distribution unit 214 selects area map data of the rental area from the area map storage unit 222, and distributes the selected area map data to the on-vehicle terminal 120.

The charging unit 215 performs charging processing for the distributed area map data.
Specifically, the charging unit 215 charges the charge of the distributed regional map data to the rental car company.

After the regional map data of the rental area is distributed to the on-vehicle terminal 120, the vehicle 110 is lent out.
Since the area map data of the rental area is stored in the on-vehicle terminal 120, the vehicle 110 can move in the rental area by automatic driving.

  When the vehicle 110 moves to a destination 341 in an area outside the rental area, the area map data of the target area 340 is distributed as in the first embodiment.

*** Effect of Embodiment 2 ***
Local map data of the rental area can be distributed to the rental car, and the rental car in which the local map data of the rental area is stored can be lent out. The usage fee of the area map data of the rental area can be charged to the car rental company. Then, the rental car user can use the area map data of the rental area for the rental fee only. That is, the user can move within the rental area by automatic driving.

*** Supplement of the embodiment ***
The embodiments are exemplifications of preferred embodiments, and are not intended to limit the technical scope of the present invention. The embodiment may be partially implemented or may be implemented in combination with other embodiments. The procedure described using the flowchart and the like may be changed as appropriate.

  Reference Signs List 100 map distribution system, 101 network, 110 vehicle, 120 in-vehicle terminal, 200 map server device, 201 processor, 202 memory, 203 auxiliary storage device, 204 communication device, 205 input / output interface, 210 area map acquisition unit, 211 area map management Section 212 control section 213 extraction section 214 distribution section 215 charge section 221 standard map storage section 222 area map storage section 223 communication section 224 reception section 301 area 310 standard map 311 standard road 312 Entrance, 313 exit, 320 area map, 321 area road, 330 departure area, 331 departure area, 332 origin road, 333 start point, 340 destination area, 341 destination area, 342 destination road, 343 invitation site, 344 invitation site Road, area 401 Browse screen, 402 candidate place list screen, 403 invitation place list screen, 1201 processor, 1202 memory, 1203 auxiliary storage device, 1204 communication device, 1205 input / output interface, 1211 control unit, 1212 automatic operation unit, 1221 storage unit, 1222 communication Department, 1223 reception department.

Claims (13)

A standard map storage unit for storing standard map data representing a standard road;
An area map storage unit for storing area map data representing an area road that is a road different from the standard road, for each area;
A communication unit that receives a distribution request indicating a destination;
An extraction unit for extracting destination road data representing a destination road from area map data of a destination area including the destination;
A delivery unit for delivering the destination road data to a request source;
And charging section for charging the destination road data when the destination road data is distributed,
The map server device, wherein the destination road is a portion of a regional road in the destination area which is included in a route from an exit of the standard road in the destination area to the destination. The map server device according to claim 1, wherein the charging unit charges a charge for the destination road data to a user of the request source. The map server device according to claim 1, wherein the charging unit charges a charge of the destination road data to a provider who provided the area map data of the destination area. The extraction unit extracts invitation road data representing an invitation road from the area map data of the target area,
The distribution unit distributes the solicitation site road data to the request source,
The charging unit performs charging processing for the solicited area road data when the solicited area road data is distributed,
The map server device according to claim 1, wherein the invitation site road is a portion from the middle of the destination road to the invitation site among the regional roads in the destination area. The map server device according to claim 4, wherein the charging unit charges a charge of the solicitation site road data to a user of the request source. 5. The map server device according to claim 4, wherein the charging unit charges a charge of the solicited area road data to a provider who provided the area map data of the destination area. The delivery request further indicates the place of departure,
The extraction unit extracts departure road data representing a departure road from area map data of a departure area including the departure place;
The distribution unit distributes the departure road data to the request source,
The charging unit charges the departure road data when the departure road data is distributed.
The said departure place road is a part contained in the path | route from the said departure place to the entrance of the said standard road in the said departure area among the regional roads of the said departure area. Map server device. 8. The map server device according to claim 7, wherein the charging unit charges a charge of the departure place road data to the user of the request source. The map server device according to claim 7, wherein the charging unit charges a charge of the departure point road data to a provider who provided the area map data of the departure area. The map server device according to any one of claims 1 to 9, wherein the standard map data and each area map data are data used for automatic driving. An area map storage unit that stores area map data for each area;
A distribution unit which selects area map data of a rental area to which a rental car is lent, and distributes the selected area map data to an on-vehicle terminal of the car;
A map server apparatus comprising: a charging unit that performs charging processing for charging a rental car company for the charge of the distributed regional map data. The map server device according to claim 11, wherein each area map data is data used for automatic driving. The communication unit receives a distribution request indicating the destination,
The extraction unit extracts destination road data representing a destination road from the area map data of the destination area including the destination,
A delivery unit delivers the destination road data to a request source;
When the destination road data is distributed, a charging unit performs charging processing for the destination road data,
The map delivery method, wherein the destination road is a portion included in a route from an exit of a standard road in the destination area to the destination in a regional road in the destination area.

Images