JP2003279358A - Method for updating road map data - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a road map data updating method in a network type navigation system, which makes it easy for a user to provide running data which are used for updating data in a road map data base. <P>SOLUTION: A user-transmitted information reception portion 101 receives a user ID and running data from an on-vehicle terminal 2. After the user is confirmed by a user confirmation portion 102, an unregistered road decision portion 103 decides whether or not the route of the running data has been registered in the road map data base 112, and stores the running data in an unregistered road information storage portion 111, if the route has not been registered. A new road information forming portion 104 forms link information of a road on the basis of unregistered road information, and updates the data base 112. An incentive computation portion 105 computes a degree of contribution of the user who transmitted the unregistered road information used for the updating and stores it in a user information storage portion 110. An accounting portion 109 performs accounting using the degree of contribution. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road map data update processing method in a navigation system using a network. More specifically, the present invention relates to a road map data update processing method in which data used for updating a road map database is acquired from a vehicle-mounted navigation terminal, the degree of contribution of the data is calculated, and reflected in the user's bill.

[0002]

2. Description of the Related Art Road map data used in a navigation system must reflect actual road conditions, and therefore must be updated with accurate information and quickly. Therefore, in the navigation system, it is important to smoothly update the road map database.

Conventionally, the road map database has been manually updated on the road map data management server side. However, the manual update process imposes a heavy work load and hinders the rapid update process. In addition, it is difficult to quickly obtain the road condition change information over a wide range.

Therefore, in order to reduce the load of such update processing, Japanese Patent Laid-Open No. 2000-258176 "Dynamic Map Data Update System" discloses a network type navigation system that delivers road map data and its update data to a navigation terminal through a network. In the system, when a vehicle equipped with a terminal travels on a part of the road map data that is not a road, the travel data indicating the travel history of the vehicle is transmitted to the server that manages the road map data, and the management is performed. A technique is disclosed in which a server updates road map data using the travel data.

[0005]

In the above-mentioned conventional technique, the traveling data transmitted to the management server is a traveling history of when and where the vehicle equipped with the navigation terminal was traveling. Therefore, by providing driving data, the user's course of action will be grasped, and so to speak, it will lead to the disclosure of the user's privacy, and many users hesitate to send the driving data to the management server. To be

If a large number of users download only the updated map data without transmitting the traveling data, the traveling data, which is the premise of the road map data updating process, cannot be collected in a wide area, and the road map data cannot be collected. There is a risk that the update processing system of will not operate smoothly.

If the road map data is automatically updated by using all the travel data transmitted to the management server, the accuracy of the road map data is impaired due to the variation in the reliability of the travel data used for the update processing. There is a risk.

The present invention has been made in view of the above problems, and an object thereof is to perform road map data updating processing in a network type navigation system.
It is an object of the present invention to provide a road map data update processing method having a mechanism for facilitating a user to transmit his / her own traveling data to a management server.

Another object of the present invention is to provide a road map data update processing method capable of maintaining the accuracy of road map data by using only highly reliable travel data of the travel data provided by the user for the update processing. Is to provide.

[0010]

In order to achieve the above object, the present invention provides a road map management server for managing a road map database for navigation, and an on-vehicle vehicle using map data which is a part of the road map database. A method for updating data of a road map database used in a network type navigation system comprising a navigation device of the type, wherein the navigation device provides a user ID for identifying a user who uses the navigation device. The travel data acquisition process of acquiring travel data indicating the travel route consisting of the position, and whether or not the route indicated by the travel data is registered in the road map database, and the route indicated by the travel data is If it is not registered in the road map database, The unregistered road information determination process of storing the travel data with the user ID as unregistered road information, and the road link information is generated based on the unregistered road information, and the road map is created using the link information. A road map database updating process for updating data in the database; and a contribution calculating process for calculating and storing a contribution for each user ID based on unregistered road information used in the road map database updating process. And a billing process for billing using the contribution degree.

According to the present invention, the user ID and the traveling data of the vehicle are received from a navigation device (referred to as an in-vehicle terminal) mounted on the vehicle of the user, and the route indicated by the traveling data is registered in the road map database. If the route of the travel data is not registered in the road map database, the travel data is stored as unregistered road information. And
Road link information is generated based on the unregistered road information to update the data of the road map database. After that, the contribution degree is calculated and stored for each user based on the unregistered road information used in the road map database updating process, and the charging process is performed using the contribution degree.

As a result, the road map management server can provide the user with an incentive to transmit the travel data of the vehicle to the management server so that the user can actively provide the travel data.

Further, the road map management server can easily collect the travel data used in the data update processing of the road map database.

Further, the user who uses the navigation system can reflect the provision of the traveling data of himself / herself in the usage fee of the system, and can use the system while keeping the fee low.

Further, according to the present invention having the above-mentioned configuration, in the unregistered road information determination processing step, when a predetermined number or more of traveling data indicating the same route not registered in the road map database is acquired, The travel data is stored as unregistered road information.

Further, according to the present invention, in the unregistered road information determining process, when the traveling data indicating the same route not registered in the road map database satisfies a predetermined reliability, the traveling is performed. Data is stored as unregistered road information.

Further, according to the present invention, in the road map database updating process, when the unregistered road information satisfies a predetermined reliability, the link information of the road is obtained based on the unregistered road information. Generate and update the road map database.

This makes it easy for the road map management server to keep the road map database accurate and up-to-date by using highly reliable travel data.

The program for causing a computer to execute each processing step of the processing method according to the present invention may be stored in a computer-readable suitable recording medium such as a portable medium memory, a semiconductor memory, or a hard disk. Yes, it is provided by recording on these recording media,
Alternatively, it is provided by transmission / reception using various communication networks via a communication interface.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration example of a road map data updating system of a network type navigation system which is an embodiment of the present invention.

The road map data updating system includes a road map management server 1 provided in a road map management center and a navigation terminal (hereinafter referred to as an in-vehicle terminal) 2 mounted on a user's vehicle. The road map management server 1 and the vehicle-mounted terminal 2 can exchange data with each other using a wireless data communication network. In this embodiment, data communication is performed using a mobile phone network.

The road map management server 1 includes a user transmission information reception unit 101, a user authentication unit 102, an unregistered road determination unit 103, a new road information creation unit 104, an incentive calculation unit 105, and a map update request reception. Part 106,
An update map creation unit 107, an update map transmission unit 108, a billing processing unit 109, a user information storage unit 110, an unregistered road information storage unit 111, and a road map database (road map DB) 112 are provided.

The in-vehicle terminal 2 has a map database (map D
B) 201, a position data detection unit 202, a new road determination unit 203, a transmission / reception unit 204, and a map update unit 205.

The user transmission information receiving unit 101 of the road map management server 1 is means for receiving the traveling data, the map update request, etc. transmitted from the user's onboard terminal 2.

The travel data indicates the position where the vehicle equipped with the in-vehicle terminal 2 travels by GPS (Global Positioning System).
) Is used to form position data composed of latitude and longitude and auxiliary data relating to positioning.

The user authentication unit 102 is a unit for referring to the user information storage unit 110 and authenticating the user based on the user identification information transmitted together with the travel data.

The unregistered road judging unit 103 judges whether the traveling data received by the user transmission information receiving unit 101 is data indicating a portion of the road not registered in the road map database 112, and the unregistered road is judged. Is stored in the unregistered road information storage unit 111 as unregistered road information by collecting the traveling data determined to indicate the same route as the data that can be identified as indicating the same route.

The new road information creating unit 104 is means for creating new road link information based on unregistered road information and updating the link information by registering the link information in the road map database 112.

The incentive calculation unit 105 determines that the travel data transmitted from the vehicle-mounted terminal 2 is the unregistered road determination unit 103.
Means for calculating the degree of contribution of the user to the data update processing of the road map database 112 based on the fact that it is adopted by the new road information creation section 104 or used for the update processing by the new road information creation section 104, and registering it in the user information storage section 110 Is.

The map update request receiving unit 106 is a unit that receives a map update request from the in-vehicle terminal 2 of the authenticated user and requests the update map creating unit 107 to perform the update map creating process.

The update map creation unit 107 is a means for creating update map data of a corresponding range from the road map database 112 based on a map update request.

The update map transmission unit 108 is a means for transmitting the update map data created by the update map creation unit 107 to the in-vehicle terminal 2 as the request source.

The billing processing unit 109 includes the user information storage unit 1
This is means for performing a charging process for a map update request by referring to the user's contribution level stored in 10.

The user information storage unit 110 is means for storing the identification information of the user who is permitted to use the road map management server 1 and the degree of contribution of the user to the updating process of the road map database 112. The degree of contribution is determined by the number of pieces of travel data adopted by the unregistered road determination unit 103, the order of transmission, or the number of travel data referenced by the new road information creation unit 104.

The unregistered road information storage unit 111 is a unit for collectively storing the traveling data adopted by the unregistered road determination unit 103 for each route of which the position data such as the start point and the destination point are similar.

The road map database 112 is a database for storing and managing road map data transmitted to the vehicle-mounted terminal 2.

The map database 201 of the in-vehicle terminal 2 is
Used by navigation means (not shown in FIG. 1),
It is a database that stores map data that is all or part of the data of the road map database 112.

The position data detection unit 202 is means for detecting position data (latitude / longitude information) of a running vehicle by using GPS.

The new road determination unit 203 determines whether the route (road) connecting at least two position data of the running vehicle is a road registered in the map database 201 based on the position data of the vehicle. It is a means for determining whether or not, and generating travel data from the position data of the route determined to be an unregistered road. Here, the first position data of the route connecting two or more position data is set as the starting point data, and the final position data is set as the destination point data.

The transmission / reception unit 204 transmits the traveling data or the updated map request to the road map management server 1, or
It is means for receiving updated map data from the road map management server 1.

The map updating unit 205 is means for reflecting the updated map data received by the transmitting / receiving unit 204 on the map database 201.

2 and 3 are views for explaining the flow of the update processing of the road map data. Step S10
The processes from S14 to S14 are the processes performed on the in-vehicle terminal 2 side, and are steps S20 to S24 and step S30.
The process of S34 indicates the process performed on the road map management server 1 side.

In the in-vehicle terminal 2, the position data detecting section 2
02 detects the position data of the running vehicle using GPS. Specifically, the position data detection unit 202 sets the G
The position data (latitude / longitude) of the vehicle is detected by receiving data from the satellite of PS, and the positioning mode and the degree of deterioration of the geometric positioning accuracy (GDOP: Geometrical Dilution of Prec
Positioning assistance data that is information related to positioning such as ision) is acquired (step S10).

The positioning mode is information indicating whether the positioning data is used in the single positioning or the differential positioning. GDOP is a numerical value for indicating the rate of decrease in positioning accuracy obtained from the geometrical arrangement of the satellite used for positioning with respect to the position to be measured. The smaller the GDOP value is, the higher the positioning accuracy acquired by the satellite combination is.

The new road determination unit 203 determines whether or not the route connecting the vehicle position data (latitude / longitude) detected by the position data detection unit 202 is a route registered as a road in the map database 201. (Step S11).

When it is determined that the route formed by the detected position data and the route on which the vehicle has traveled are not registered in the map database 201, that is, a new road, the map database 201 out of the traveled routes.
The position data of the part of the route that does not correspond to the road registered in is extracted and used as travel data together with information regarding positioning.

If it is determined from the detected position data that the route traveled by the vehicle is a route registered in the map database 201, that is, a known road, the position data detection unit 202 further determines the position data of the vehicle. The detection is continued (step S10).

Then, the transmitting / receiving unit 204 connects to the road map management server 1 (step S12), and the user ID
(Data that can uniquely specify the user, for example, a mobile phone number) is transmitted (step S13), and the new road determination unit 20 is sent.
The traveling data received from 3 is transmitted (step S1
4).

The user transmission information receiving unit 101 of the road map management server 1 receives the user ID transmitted from the vehicle-mounted terminal 2 (step S20), and the user authentication unit 102 stores the user information stored in the user information storage unit 110. The received user ID is authenticated by referring to the information (step S21).

FIG. 4 shows an example of user information. The user information includes a user ID, the latest access time, and cumulative points. In the item of user ID, the mobile phone number of the user is stored as identification information. The item of the latest access time stores the time when the user's vehicle-mounted terminal 2 most recently accessed the road map management server 1. Further, the accumulated points item stores accumulated points indicating the degree of contribution of the user calculated by the incentive calculation unit 105.

In the user information shown in FIG. 4, the latest access time of the in-vehicle terminal 2 of the user whose mobile phone number "09012345678" is registered as the user ID is 08:54:11 on February 22, 2002. Yes, it means that the degree of contribution to the update process is 302 points.

When the user authentication unit 102 authenticates the user ID (step S21), the user transmission information reception unit 101 subsequently receives the traveling data and passes it to the unregistered road determination unit 103 (step S22).

The unregistered road judging unit 103 searches the data of the road map database 112 and judges whether or not the traveling data is unregistered (step S23). If the travel data is not registered, the travel data is collected and temporarily stored for each position data within a range where the same position is considered.

After that, when a certain number or more of the starting point data (position data) and the destination point data (position data) are collected and a set of traveling data forming a significant route is obtained (step S24), It is determined that the set of traveling data is a traveling data group indicating a new unregistered road, is collected into one table, and is stored in the unregistered road information storage unit 111 as unregistered road information (step S2).
5). If the travel data received in the process of step S23 is not registered in the road map database 112,
Immediately as unregistered road information, unregistered road information storage unit 11
It may be stored in 1.

FIG. 5 shows an example of a part of the traveling data stored in the unregistered road judging unit 103. The traveling data includes position data including latitude and longitude of the vehicle, positioning time (UTC: world standard time), positioning mode, the number of satellites involved in positioning, and positioning assistance data such as GDOP.

In the item of positioning mode, a value indicating a predefined positioning mode such as 1 = differential positioning (DGPS), 2 = simple positioning (GPS) is stored.

In an example of a part of the travel data shown in FIG. 5, it is shown that the position data is the latitude / longitude measured at the time (UTC): 40619 with the accuracy of GDOP = 5.09 by the difference mode. .

Then, the user transmission information receiving section 101
This means a state in which the traveling data transmitted from the vehicle-mounted terminals 2 of the four vehicles that have traveled at substantially the same point indicated by the position data at approximately the same time are sequentially received and temporarily stored.

FIG. 6 shows an example of unregistered road information. The unregistered road information is generated collectively for each route within the range where the points indicated by each position data of the traveling data can be identified substantially, and the item number, start point (latitude / longitude), destination point (latitude / longitude), time , Reliability, user ID, and new item.

The item number indicates the order of receiving the traveling data on the routes considered to be the same. The start point stores the latitude and longitude of the position that is the start point of the travel data, and the destination point stores the latitude and longitude of the position that is the target point of the travel data. Further, the time is the time when the user transmission information receiving unit 101 receives the traveling data, the reliability is the value of GDOP indicating the positioning accuracy of the position data, and the user ID is the identification information of the user who transmitted the traveling data ( Mobile phone number)
Newly, a value indicating the number of times the traveling data indicating the same route transmitted by the same user is transmitted is stored.

In the unregistered road information shown in FIG. 6, the user ID of the traveling data of item No. 1 and the user ID of the traveling data of item No. 4 are the same, and the users who transmitted these traveling data are the same person. Is recognized, and 2 is stored in the new item of the traveling data of item number 4.

This is because, for example, a user first travels on a route that is an unregistered road as an outbound route, transmits traveling data (item number 1) to the road map management server 1, and then returns to the same route on the return route. The figure shows a situation in which the travel data indicating the same route (item No. 4) is transmitted again to the road map management server 1 because the vehicle has traveled.

When the same data is transmitted a plurality of times by the same user as in this case, the incentive calculation unit 105 determines the first transmission and the second and subsequent transmissions based on the new item. The contribution is calculated separately.

If the user authentication unit 102 does not authenticate the received user ID (step S21), the process is terminated. The unregistered road determination unit 103 does not adopt the unregistered road information for the traveling data group for which a certain number or more of traveling data is not collected and does not form a significant set (step S23), and the processing is performed. finish.

After that, the new road information creating unit 104 refers to the unregistered road information storage unit 111 and checks whether or not the unregistered road information collected in one table is accumulated in a certain number or more. (Step S30).

Then, the new road information creation unit 104 sets 1
If there is a certain number or more of unregistered road information accumulated in one table, the reliability of the unregistered road information is calculated (step S31), and only the data whose reliability value satisfies the predetermined judgment value is used. Then, link information for defining a new road is generated and reflected in the road map database 112 (step S32).

Here, it is assumed that GDOP of positioning assistance data is used as the reliability of the data. In this case, GDOP
The lower the value of, the higher the positioning accuracy, usually 3 to 6
Since the value of is a good positioning accuracy (assumed error is about 18 to 36 m), a numerical value around 7 is set as the predetermined reference value as the determination value, and only the position data corresponding to the GDOP value smaller than the determination value is used. To generate link information.

Further, the new road information creating section 104 may generate the link information by the following processing using the unregistered road information.

For example, the new road information creating unit 104 uses data by combining the values of positioning auxiliary data (geometrical positioning accuracy deterioration degree, positioning mode, etc.) included in each data of the accumulated unregistered road information. The reliability is calculated and link information is generated according to the reliability of the data.

Further, the new road information creation unit 104 performs weighting according to the reliability calculated from each data of accumulated unregistered road information, calculates position data according to the calculated weighting, and generates link information. To do.

When the total reliability of each piece of unregistered road information meets a certain reference value, the new road information generator 104 uses each piece of unregistered road information to obtain link information. To generate.

As a result, it is possible not only to collect a certain number of data but also to collect highly reliable data as a criterion for starting the link information generation process.

Further, when the number of data of different user IDs out of the data of unregistered road information exceeds a certain number, the new road information creation unit 104 uses the reliability of each data to generate link information. Alternatively, if the total reliability of the data of different user IDs among the unregistered road information data satisfies a certain reference value, the link information is generated using each unregistered road information data. To do.

As a result, it is possible to exclude data from a vehicle that has run on a road that is not an ordinary road such as a private land, and it is possible to generate more accurate link information.

Further, when there are a certain number or more of unregistered road information data accumulated within a preset fixed time, the new road information creating unit 104 uses these data to generate link information. .

When the reliability of each piece of data of unregistered road information accumulated within a preset fixed time period satisfies a certain reference value, the new road information creating unit 104 uses those data. Generate link information.

As a result, it is possible to exclude from the link information generation process, for example, a route with extremely low traffic volume per hour, such as data from a vehicle running on a road in private land.

After that, the incentive calculation unit 105
Upon receiving the notification of the completion of the link information generation processing from the new road information creation unit 104, the degree of contribution of the user is calculated, for example, by converting points based on the user ID and the new value of the unregistered road information related to the processing. For example, the incentive calculation unit 105 gives 10 points only to a user who has a new value = 1 (first information provision). Alternatively, 10 points are given to a user with a new value = 1, and new =
3 points may be given to the user of 2 (the second information provision of the same user) (step S).
33).

Then, the incentive calculation unit 105
The points given to each user are stored in the user information storage unit 110.
Is added to the accumulated points for each user of the user information stored in (step S34).

FIG. 7 is a diagram showing a flow of update information providing processing of road map data.

The transmitting / receiving unit 204 of the vehicle-mounted terminal 2 connects to the road map management server 1 (step S40), and the user ID
Is transmitted (step S41), and the position data detection unit 202
Position data of the current position of the vehicle detected in step S42 is transmitted (step S42), and a map update request is transmitted (step S).
43). The transmission / reception unit 204 may also transmit information (map data / status) indicating the version of the map database 201 together with the map update request.

The user transmission information receiving unit 101 of the road map management server 1 passes the user ID received from the vehicle-mounted terminal 2 to the user authentication unit 102 (step S50). When the user authentication unit 102 authenticates the user ID by referring to the user information storage unit 110 (step S51), the user transmission information reception unit 101 maps the current position data of the vehicle and the map update request received from the vehicle-mounted terminal 2 to the map. Update request reception unit 1
Then, the map update request reception unit 106 transfers the received current position data of the vehicle to the update map creation unit 107 and requests the update map data creation (step S52).

The update map creation unit 107 refers to the road map database 112 to extract road map data in a predetermined range including the current position of the vehicle that requested it and create update map data. If the status of the map data is received from the vehicle-mounted terminal 2, the status is referred to and updated map data corresponding to the version indicated by the status is created from the extracted road map data (step S53). Then, the created update map data is transmitted to the request-source in-vehicle terminal 2 via the update map transmission unit 108 (step S54).

After that, when the update map creation unit 107 is notified of the completion of the update map creation, the billing processing unit 109 refers to the user information storage unit 110 and obtains accumulated points using the user ID of the request source as a key. , Calculate the charge by reflecting the accumulated points on the charge for the update process (step S
55). The billing processing unit 109 converts, for example, the number of points into a monetary amount and discounts the amount of money for the points from the map update fee to perform billing. Also, in the case of a system that provides a navigation system on a membership fee system without charging for each map update request, for example, the accumulated points of the user information are reflected in the annual membership fee, and the membership fee is discounted You may The charging processing unit 10
9 reflects the accumulated points of the user information in the billing process and then subtracts the reflected points to update the value of the accumulated points of the user information.

On the other hand, the transmission / reception unit 204 of the vehicle-mounted terminal 2 receives the updated map data, and the map updating unit 205 updates the map database 201 using the updated map data.

Although the present invention has been described above with reference to the embodiments, it goes without saying that the present invention can be variously modified within the scope of the gist thereof.

The features of the embodiments and examples of the present invention are listed below. (Supplementary Note 1) A network navigation system including a road map management server that manages a road map database for navigation and an in-vehicle navigation device that uses map data that is a part of the road map database.
A method of updating data of the road map database used in the system, wherein the navigation device:
A travel data acquisition process of acquiring travel data indicating a travel route consisting of the position of the vehicle to which a user ID for identifying the user who uses the navigation device is assigned, and the route indicated by the travel data is the road map database. If the route indicated by the traveling data is not registered in the road map database, the traveling data with the user ID is stored as unregistered road information. Determination processing step, road map database update processing step of generating road link information based on the unregistered road information, and updating the data of the road map database using the link information, and the road map database update Based on the unregistered road information used in the process, the contribution of each user ID is calculated and stored. A degree calculating process, the road map data update processing method characterized by comprising a charging process of charging with the contribution. (Supplementary note 2) In the road map data update processing method according to supplementary note 1, in the unregistered road information determination processing step, a predetermined number or more of travel data indicating the same route that is not registered in the road map database is acquired. In case,
A road map data update processing method, characterized in that the travel data is stored as unregistered road information. (Supplementary note 3) In the road map data update processing method according to supplementary note 1, in the unregistered road information determination processing step, the travel data indicating the same route not registered in the road map database has a predetermined reliability. A method for updating road map data, characterized in that the travel data is stored as unregistered road information when the road map data is satisfied. (Supplementary note 4) In the road map data update processing method according to supplementary note 1, in the road map database update processing step, when the unregistered road information satisfies a predetermined reliability, the unregistered road information A road map data update processing method characterized by generating road link information based on the above and updating the data of the road map database. (Additional remark 5) In the road map data update processing method according to any one of the additional remark 3 or the additional remark 4, in the unregistered road information determination processing, as the reliability,
A road map data update processing method characterized by using positioning assistance data when positioning a route indicated by travel data. (Supplementary note 6) In the road map data update processing method according to supplementary note 5, in the unregistered road information determination processing step, a geometrical positioning accuracy deterioration degree (GDOP) of positioning is used as the positioning assistance data. A characteristic road map data update processing method. (Supplementary Note 7) A road map data processing program for causing a computer to execute the step of realizing the road map data update processing method according to any one of Supplementary Notes 1 to 6. (Supplementary Note 8) A road map characterized in that a program for causing a computer to execute the steps for realizing the road map data update processing method according to any one of Supplementary Notes 1 to 6 is recorded. Data processing program recording medium.

[0089]

As described above, according to the present invention,
In the road map data updating system in the network type navigation system, the number of times the user has transmitted his / her own traveling data to the road map management server can be reflected in the server usage fee billing process.

As a result, the road map management center can easily collect the travel data which is a prerequisite for the update processing of the road map database, and the cost of the update processing of the road map database can be suppressed.

Further, according to the present invention, the reliability of the data is calculated by using the positioning assistance data such as the geometrical positioning accuracy deterioration degree of the position of the received traveling data and the positioning mode, and the calculated reliability is reflected. Then, the road link information is generated and used for the data update processing of the road map database.

As a result, it is possible to maintain the reliability of the road map data and maintain the road map database reflecting the latest situation at low cost.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a road map data updating system which is an embodiment of the present invention.

FIG. 2 is a diagram showing a flow of update processing of road map data.

FIG. 3 is a diagram showing a flow of update processing of road map data.

FIG. 4 is a diagram showing an example of user information.

FIG. 5 is a diagram showing an example of a part of travel data.

FIG. 6 is a diagram showing an example of unregistered road information.

FIG. 7 is a diagram showing a flow of update information providing processing of road map data.

[Explanation of symbols]

1 Road map management server (road map management center) 101 user transmission information receiver 102 User Authentication Unit 103 Unregistered Road Judgment Unit 104 New Road Information Creation Department 105 Incentive Calculation Department 106 Map update request reception unit 107 Update map creation section 108 Update map transmitter 109 Billing processing unit 110 user information storage unit 111 Unregistered road information storage unit 112 Road Map Database 2 In-vehicle terminal (vehicle) 201 map database 202 Position data detector 203 New road determination unit 204 transceiver 205 Map Update Department

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Claims (5)

[Claims] 1. The road used in a network type navigation system comprising a road map management server that manages a road map database for navigation, and a vehicle-mounted navigation device that uses map data that is a part of the road map database. A data update processing method for a map database, wherein travel data is obtained from the navigation device, the travel data indicating a travel route including a position of the vehicle to which a user ID for identifying a user who uses the navigation device is assigned. The acquisition processing step and whether or not the route indicated by the travel data is registered in the road map database, and if the route indicated by the travel data is not registered in the road map database, the user ID Unregistered road information is the driving data with An unregistered road information determination process to be stored, and a road map database update process to generate road link information based on the unregistered road information and update the data of the road map database using the link information. A contribution degree calculation processing step of calculating and storing a contribution degree for each user ID based on unregistered road information used in the road map database update processing step; and a charging processing step of charging using the contribution degree. A road map data update processing method comprising: 2. The road map data update processing method according to claim 1, wherein in the unregistered road information determination processing step, a predetermined number or more of travel data indicating the same route not registered in the road map database is acquired. In this case, the travel data is stored as unregistered road information. 3. The road map data update processing method according to claim 1, wherein in the unregistered road information determination processing step, travel data indicating the same route that is not registered in the road map database has a predetermined reliability. A road map data update processing method, characterized in that the travel data is stored as unregistered road information when the road map data is satisfied. 4. The road map data update processing method according to claim 1, wherein in the road map database update processing step, when the unregistered road information satisfies a predetermined reliability,
A road map data update processing method characterized by generating road link information based on the unregistered road information and updating the data of the road map database. 5. The road map data update processing method according to claim 3, wherein in the unregistered road information determination processing step, positioning of a route indicated by travel data is used as the reliability. A road map data update processing method characterized by using positioning assistance data at time.