JP4162978B2 - Map information update system, map update information providing device, and map information update device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technology for updating information relating to a map.
[0002]
[Prior art]
Conventionally, in a navigation device, a road that is not included in map data recorded on a recording medium such as a CD-ROM is added as road data by an operation on the screen, or added as road data by actually traveling on the road. Techniques are known (Japanese Patent Laid-Open Nos. 8-271272 and 2000-31175). It is also known that information relating to a map such as road data that has been additionally updated is disclosed on the Internet and used by other users (Japanese Patent Laid-Open Nos. 2000-31175 and 2001-306417).
[0003]
[Patent Document 1]
JP-A-8-271272
[Patent Document 2]
JP 2000-3111175 A
[Patent Document 3]
JP 2001-306417 A
[0004]
[Problems to be solved by the invention]
However, when other users use information regarding the additionally updated map, the credibility of the information becomes a problem.
[0005]
The present invention provides a map update information providing device, a map information update device, a map information update system, and a program for realizing them, which make it possible to provide update information related to a credible map.
[0006]
[Means for Solving the Problems]
The invention of claim 1 is applied to a map information update system comprising a map update information providing device and a map information update device connected to the map update information providing device via the Internet. The map update information providing device relates to a map. First update information acquisition means for acquiring update information for updating a part of information, and first additional information acquisition means for acquiring additional information different from update information for evaluating the authenticity of update information And an update unit that outputs the acquired update information and additional information, and the map information update device includes a second update information acquisition unit that acquires update information output from the map update information providing device, and map update information. A second additional information acquisition unit that acquires additional information for evaluating the authenticity of the update information output from the providing device; and a authenticity that evaluates the authenticity of the update information using the additional information When it is determined that the update information is credible, the update information is stored in the storage means, and the stored update information is updated for a part of the information related to the map. Update information that can be used as update information, and the first additional information acquisition means of the map update information providing device is information different from the update information, and the first update information acquisition means is the update information. The information indicating the position of the map update information providing device when the map update information is acquired is acquired as additional information.
The invention of claim 2 is applied to a map information update system including a map update information providing device and a map information update device connected to the map update information providing device via the Internet. The map update information providing device relates to a map. First update information acquisition means for acquiring update information for updating a part of information, and first additional information acquisition means for acquiring additional information different from update information for evaluating the authenticity of update information And an update unit that outputs the acquired update information and additional information, and the map information update device includes a second update information acquisition unit that acquires update information output from the map update information providing device, and map update information. A second additional information acquisition unit that acquires additional information for evaluating the authenticity of the update information output from the providing device; and a authenticity that evaluates the authenticity of the update information using the additional information When it is determined that the update information is credible, the update information is stored in the storage means, and the stored update information is updated for a part of the information related to the map. Update information that can be used as update information for the map, and the map update information providing device further includes road traffic information receiving means for receiving road traffic information having transmission position information, and the additional information is received from the road traffic received. The information includes at least one of information on a position based on road traffic information having transmission position information closest to a position related to update information and information on a received time.
The invention of claim 3 is applied to a map information update system including a map update information providing device and a map information update device connected to the map update information providing device via the Internet. The map update information providing device relates to a map. First update information acquisition means for acquiring update information for updating a part of information, and first additional information acquisition means for acquiring additional information different from update information for evaluating the authenticity of update information And an update unit that outputs the acquired update information and additional information, and the map information update device includes a second update information acquisition unit that acquires update information output from the map update information providing device, and map update information. A second additional information acquisition unit that acquires additional information for evaluating the authenticity of the update information output from the providing device; and a authenticity that evaluates the authenticity of the update information using the additional information When it is determined that the update information is credible, the update information is stored in the storage means, and the stored update information is updated for a part of the information related to the map. An update unit that can be used as update information, and the map update information providing device further includes a travel locus information obtaining unit that obtains at least one of the information related to the travel locus of the vehicle and the information related to the travel time, The additional information includes at least one of information related to the travel trajectory of the vehicle in the vicinity of the position related to the update information acquired by the travel trajectory information acquisition means and information related to the travel time.
The invention of claim 4 is applied to a map information update system comprising a map update information providing device and a map information update device connected to the map update information providing device via the Internet. The map update information providing device relates to a map. First to obtain update information for updating a part of information Update information acquisition means, first additional information acquisition means for acquiring additional information different from update information for evaluating the authenticity of the update information, and output means for outputting the acquired update information and additional information. The map information update device includes a second update information acquisition unit that acquires update information output from the map update information providing device, and a method for evaluating the credibility of the update information output from the map update information providing device. A second additional information acquisition unit that acquires the additional information, a credibility evaluation unit that evaluates the credibility of the update information using the additional information, a storage unit that stores the information, and the update information is credible Update information is stored in the storage means, and the stored update information can be used as update information for updating a part of the information related to the map. First The update information acquisition means includes information on the position of the map update information providing device when the update information is acquired, and the authenticity evaluation means of the map information update device is the position of the map update information providing device when the update information is acquired. It is characterized by evaluating whether the update information was obtained by checking on-site using the information on the site, and evaluating it as credible if it can be determined that it was obtained by checking on-site It is.
The invention of claim 5 is applied to a map information update system comprising a map update information providing device and a map information update device connected to the map update information providing device via the Internet. The map update information providing device relates to a map. First update information acquisition means for acquiring update information for updating a part of information, and first additional information acquisition means for acquiring additional information different from update information for evaluating the authenticity of update information And an update unit that outputs the acquired update information and additional information, and the map information update device includes a second update information acquisition unit that acquires update information output from the map update information providing device, and map update information. A second additional information acquisition unit that acquires additional information for evaluating the authenticity of the update information output from the providing device; and a authenticity that evaluates the authenticity of the update information using the additional information When it is determined that the update information is credible, the update information is stored in the storage means, and the stored update information is updated for a part of the information related to the map. Update information that can be used as update information, and the map information update device further includes time acquisition means for acquiring a reception time at which the update information is acquired on the map information update device side. The first update information acquisition means includes information related to the time when the update information is acquired, and the authenticity evaluation means of the map information update device uses the information related to the time when the update information is acquired and the reception time. , Evaluate whether the update information is new information obtained within a predetermined time from the receipt time, and evaluate that it is credible if it can be determined that the updated information is new information obtained within the predetermined time It is an butterfly.
The invention of claim 6 is the map information update system according to claim 5, wherein the time acquisition means of the map information update device further acquires the output time of the update information on the map update information providing device side that outputs the update information. The credibility evaluation means of the map information update device is characterized in that the update information is evaluated as not credible when there is a difference of a predetermined time or more between the output time and the reception time.
The invention according to claim 7 is the map information update system according to any one of claims 1 to 6, wherein the map information update device provides credible update information based on the credibility evaluation result by the credibility evaluation means. The apparatus further comprises point granting means for giving points to the provider, and the points can be returned to a fee for receiving a service from the map information updating device.
The invention according to claim 8 is the map information update system according to claim 7, wherein the point giving means of the map information updating device gives points according to the reliability evaluated by the reliability evaluation means. Is.
The invention of claim 9 is the map information update system according to claim 7 or 8, wherein the point giving means of the map information update device gives points according to the importance of the update target information of the update information. It is what.
The invention of claim 10 is applied to a map update information providing apparatus, and is characterized in that it is a map update information providing apparatus constituting the map information update system according to any one of claims 1 to 9.
The invention of claim 11 is applied to a map information updating device, and is described in any one of claims 1 to 9. The present invention is characterized in that the map information update device is included in the map information update system.
The invention of claim 12 is applied to a map update information providing program, and is characterized in that it is a map update information providing program for causing a computer to execute the function of the map update information providing apparatus of claim 10. is there.
The invention of claim 13 is applied to a map information update program, and is characterized in that it is a map information update program for causing a computer to execute the function of the map information update device according to claim 11.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a diagram showing a map information update system of an in-vehicle navigation device (hereinafter simply referred to as a navigation device) in the present embodiment. The plurality of navigation devices 1 are connected to the Internet 2 via a communication device (FIG. 2) such as a mobile phone, and are further connected to the map information server 3 via the Internet 2. The map information server 3 includes a control device 4 and a map database 5 that stores map data. In the present embodiment, the navigation device 1 provides update data (update information) of map data, which is information relating to the map, so it can be said to be a map update information providing device, and the map information server 3 obtains map data based on the update data. Since it updates, it can be said that it is a map information update device.
[0008]
FIG. 2 is a block diagram of the navigation device 1. The navigation device 1 includes a control device 11, a nonvolatile memory 12, a current location detection device 13, a DVD drive device 14, a memory 15, a communication interface 16, a VICS (registered trademark) reception device 17, a monitor 18, and an input device 19.
[0009]
The control device 11 includes a microprocessor and its peripheral circuits. The non-volatile memory 12 is a non-volatile memory such as a hard disk or flash memory provided inside the navigation device 1. Update data of map data is stored. The nonvolatile memory 12 may be any storage device as long as the written data is not erased even when the power of the navigation device 1 is turned off.
[0010]
The current position detection device 13 is a current position detection device that detects the current position of the vehicle. For example, a direction sensor that detects a traveling direction of a vehicle, a vehicle speed sensor that detects a vehicle speed, or a GPS that detects a GPS signal from a GPS (Global Positioning System) satellite. It consists of sensors. The DVD drive device 14 is a device that loads the recording medium 20 and reads map data and the like. In the present embodiment, the recording medium 20 is a DVD-ROM. It may be a CD-ROM or other recording medium.
[0011]
The memory 15 is a memory for storing vehicle position information detected by the current location detection device 13, node information on the recommended route calculated by the control device 11, link information, and the like. The memory 15 is a working area of the control device 11. The communication interface 16 is an interface for connecting the communication device 21. A mobile phone can be used or connected to the Internet via the communication interface 16.
[0012]
The VICS receiving device 17 includes a radio beacon receiving device (not shown), an optical beacon receiving device (not shown), and an FM multiplex broadcast receiving device (not shown), and road traffic information (such as traffic jam information transmitted from the VICS center) ( VICS information) is received. The VICS information by the radio wave beacon and the optical beacon includes position information where each beacon is installed. Thereby, the position where the vehicle has passed can be grasped.
[0013]
The monitor 18 is a display device that displays a map, a recommended route, and various information. The monitor 18 may be provided integrally as a part of the navigation apparatus main body, or may be provided separately as a housing. Further, only the monitor 18 may be connected to the navigation apparatus main body by a cable or the like and provided at a separated position. The input device 19 is an input device that inputs a vehicle destination or the like when searching for a route, and has a joystick used to move a cursor on the screen. The input device 19 may be a remote controller. Moreover, you may comprise with the touchscreen etc. which were provided on the screen of the monitor 18. FIG.
[0014]
The control device 11 uses the current location information of the vehicle detected by the current location detection device 13 and the map data stored in the recording medium 20 or the nonvolatile memory 12 to display a road map, calculate a route (route search), Various navigation processes such as route guidance are performed. Various processing programs executed by the control device 11 are incorporated in a ROM (not shown) provided in the control device 11.
[0015]
The navigation device 1 according to the present embodiment has a function of accepting and storing input of map data update information by the user (driver or passenger). Information that does not exist in the map data stored in the recording medium 20 is stored as update data in the nonvolatile memory 12 by the user himself / herself or by automatically inputting the vehicle's travel trajectory and the like. At the same time, it is also transmitted to the map information server 3. The map information server 3 stores the transmitted update data in the map database 5, performs a certain credibility evaluation to be described later, and then discloses it to other users.
[0016]
The navigation device 1 of another user acquires the updated data released from the map information server 3 and stores it in its non-volatile memory 12. The update data stored in the nonvolatile memory 12 is used for various navigation processes in preference to the map data stored in the recording medium 20.
[0017]
FIG. 3 is a flowchart for explaining map data update processing in the navigation device 1. The control program based on the flowchart of FIG. 3 is executed by the control device 11 and starts when the navigation device 1 is powered on.
[0018]
In step S1, it is determined whether or not the VICS memory remains in the memory 15. The VICS memory is assigned a fixed capacity as a VICS information storage area in the memory 15. If it is determined in step S1 that the VICS memory is remaining, the process proceeds to step S2. If it is determined in step S1 that there is no VICS memory remaining, the process proceeds to step S3. In step S3, the oldest data is erased and the process proceeds to step S2. In step S2, the VICS position and the reception time based on the new VICS information are stored in the VICS memory. VICS information is traffic information such as traffic jam information, but from radio wave beacons and optical beacons (hereinafter collectively referred to as beacons), location information (hereinafter referred to as VICS location information) where they are installed must also be acquired. Can do. In step S4, the VICS position information and reception time are stored. The reception time is acquired by a timer owned by the navigation device 1. In this way, a fixed number of VICS position information and reception times acquired at the latest are always maintained during traveling.
[0019]
In step S <b> 4, it is determined whether or not the travel locus memory remains in the memory 15. The travel locus memory is assigned a fixed capacity as a travel locus information storage area in the memory 15. If it is determined in step S4 that there is a remaining running track memory, the process proceeds to step S5. If it is determined in step S4 that there is no remaining running track memory, the process proceeds to step S6. In step S6, the oldest data is erased and the process proceeds to step S5. In step S5, the travel locus data and the travel time are automatically recorded in the travel locus memory. Step S5 is executed at regular time intervals. The traveling locus data is vehicle current location information and the like. Through the processing in steps S4 to S6, a series of vehicle position information and respective traveling times are stored in the traveling locus memory, and the latest traveling locus information is always stored.
[0020]
In step S <b> 7, an input of map data update information by the user is received and stored in the nonvolatile memory 12 as update data. When the user finds an error or information to be updated in the map data output from the navigation device 1 while the vehicle is running, the user stops the vehicle and uses the input device 19 to perform an input operation for updating the map data. Do. This is the case when a new store is found at point A according to the example described above, or when it is found that the one-way instruction on road A is different from the actual traffic regulation. Step S7 is a process of accepting an operation by the user and recording information related thereto. The data to be updated is the entire map data stored in the recording medium 20, for example, data relating to maps, place names, shops, facility service information, traffic regulations, telephone numbers, addresses, postal codes, etc. .
[0021]
In step S8, the location and time at which the input operation in step S7 is received are further recorded in the nonvolatile memory 12 as additional data. The location where the input operation is accepted is acquired from the current location detection device 13. For example, a user discovers a new store at point A. The user moves to point B and uses the input device 19 to perform additional registration of new store data. At that time, the control device 11 automatically records the location of the point B and the time at that time in the nonvolatile memory 12 in association with the store data at the point A. Thereby, if A point and B point are near, it can be judged that possibility that it confirmed on the spot is high. Further, when the time data is transmitted to the map information server 3, the map information server 3 side can determine whether the time data is recent information.
[0022]
In step S9, the VICS location information acquired in steps S1 to S3 and the reception time are recorded in association with the update data. For example, a user discovers a new store at point A. Move to point B and use the input device 19 to perform additional registration of store data. The update data of the new store at point A by the additional registration work is stored in the nonvolatile memory 12. At that time, the VICS location information transmitted by the beacon closest to the point A from the VICS memory and the time when the beacon is received are automatically associated with the store data at the point A in the nonvolatile memory 12 automatically. Record with. Thereby, if the VICS position information which the beacon nearest to A point and A point is transmitting is near, it can be judged that there is a high possibility that it has been confirmed locally. Further, when the time data is transmitted to the map information server 3, the map information server 3 side can determine whether the time data is recent information.
[0023]
In step S10, the travel locus data and travel time acquired in steps S4 to S6 are recorded in association with the update data. For example, the user discovers that the one-way instruction on the road A by the navigation device 1 is different from the actual traffic regulation. After actually traveling and moving to the point B, the input device 19 is used to change the data on the road A. At that time, the travel locus on the road A (at least 2 points) or the travel locus closest to the road A (at least 2 points) and the travel time at that point are automatically associated with the data of the road A in the nonvolatile memory 12. Record. As a result, if the road A and the traveling locus match or are close to each other, it can be determined that there is a high possibility of confirmation on site. Further, when the traveling time data is transmitted to the server, the server side can determine whether the traveling time data is recent information. Further, the travel time data makes it possible to determine which direction the vehicle has traveled and to confirm the directionality of the one-way road.
[0024]
Note that the data relating to the VICS position information in step S9 and the data relating to the travel locus in S10 are recorded as additional data regardless of the type of update data. However, it may be selected and recorded according to the type of update data.
[0025]
In step S11, it is determined whether or not there is a connection request from the map information server 3. Since the map information server 3 functions as a generation source for generating map data, the map information server 3 actively sucks update information from the user. Therefore, connection requests are transmitted at regular intervals. If the map information server 3 determines in step S11 that there is a connection request, the map information server 3 proceeds to step S12, and if not, the map information server 3 proceeds to step S13. It should be noted that the navigation device 1 can be set not to allow a connection request from the map information server 3. In that case, step S11 is skipped and the process proceeds directly to step S13. In step S13, it is determined whether there is a connection request from the user. If it is determined in step S13 that there is no connection request, the process returns to step S1 and is repeated. If it is determined in step S13 that there is a connection request, the process proceeds to step S12.
[0026]
In step S12, connection processing with the map information server 3 is performed. The connection process is a process of connecting via the Internet 2 using the communication device 21 such as a mobile phone. In step S14, in order to specify the user, the manufacturing number of the navigation device 1, the telephone number of the mobile phone 21, the individual number assigned to the user individually, and the like are transmitted. All of these four types of information may be transmitted, or any one or two or more may be transmitted.
[0027]
In step S15, the transmission location that is the current location of the vehicle and the transmission time are transmitted. For example, a user discovers a new store at point A. Move to point B and use the input device 19 to perform additional registration of store data. Then, move to point C and connect to the map information server 3. The map information server 3 connected to the navigation device 1 records the transmission location and transmission time of the transmission navigation device 1 and the reception time of the map information server 3 together with the change / addition data and the management number described later. Thereby, if the point A and the transmission place are close, it can be determined that there is a high possibility of confirmation on site. The transmission time data enables the server side to determine whether it is recent information when it is transmitted to the server. Furthermore, by comparing the transmission time of the navigation device 1 and the reception time of the map information server 3, it is possible to confirm temporal counterfeiting to the navigation device 1 owned by the user. In the navigation device 1, the transmission location may be acquired by the current location detection device 13, or may be obtained based on data of a mobile phone base station.
[0028]
In step S16, the update data and additional data stored in the nonvolatile memory 12 in steps S7 to S10 are read and transmitted. In step S17, the connection with the map information server 3 is released.
[0029]
In this way, the navigation device 1 acquires the update data of the map data stored in the recording medium 20, stores it in its own nonvolatile memory 12, and transmits it to the map information server 3. At this time, additional data useful for determining the authenticity of the update data is also stored in the nonvolatile memory 12 and transmitted to the map information server 3. The user himself / herself registers the update data, which is the difference / change / additional information from the actual site, in the navigation device 1. The additional data in steps S8 to S10 are automatically registered in the navigation device 1 as a hidden file that cannot be seen on the monitor 18. It is also automatically transmitted to the map information server 3. Therefore, the user does not need to be particularly aware of recording or transmission.
[0030]
Next, processing on the map information server 3 side will be described. First, the map information server 3 determines the authenticity of the update data transmitted from the navigation device 1. If it is determined that there is authenticity, the map database 5 is updated. The updated data updated on the map database 5 is also disclosed to other users. Furthermore, points are given to the provider of the update data determined to be credible, and used for discounting the map information update system usage fee. That is, the points can be reduced to a fee for receiving a service from the map information server 3. Hereinafter, these processes will be described in detail.
[0031]
FIG. 4 is a flowchart for explaining the processing of the map data update data in the map information server 3. The control program based on the flowchart of FIG. 4 is executed by the control device 4 of the map information server 3. The process starts when the map information server 3 is turned on or when the operator gives an instruction to start the program.
[0032]
In step S21, a connection process with the navigation device 1 is performed. The connection process is a process of connecting via a telephone network such as a mobile phone and the Internet 2. In step S22, the serial number of the navigation device 1 transmitted in step S14 of FIG. 3, the telephone number of the mobile phone 21, the individual number individually assigned to the user, and the like are received. This identifies which user and which user's navigation device 1 is.
[0033]
In step S23, it is determined whether or not the identified user has a data forgery experience in the past. For example, as will be described later, it is a case where forgery is performed at the transmission time, and a case where a forgery history is accumulated in the data of the map information server 3. Do not use data from users with forgery experience because they cannot be trusted. Therefore, if it is determined in step S23 that there is forgery experience, the process is terminated without updating the map database 5. On the other hand, if it is determined in step S23 that there is no forgery experience, the process proceeds to step S24.
[0034]
In step S24, the transmission location and transmission time transmitted in step S15 of FIG. 3 are received. In step S25, the update data and additional data transmitted in step S16 of FIG. 3 are received. In step S26, the reception time is acquired and recorded using the timer of the map information server 3. In step S27, it is evaluated whether or not the received update data has been confirmed and generated locally. If it is confirmed locally, it is evaluated as credible.
[0035]
The evaluation of whether or not it has been confirmed at the site in step S27 is determined based on the following factors.
(1) Is the place where the operation input is performed within the allowable distance?
(2) Whether the location and the VICS position are within the allowable distance
(3) Is the travel track within the allowable distance?
(4) Is the local site and the transmission location within the allowable distance?
[0036]
(1) Whether the place where the operation input has been performed within the allowable distance is within the allowable distance is determined based on the additional data acquired and transmitted in step S8 of FIG. (2) Whether the location and the VICS position are within the allowable distance is determined based on the additional data acquired and transmitted in step S9 of FIG. (3) Whether the traveling locus is within the allowable distance from the site is determined based on the additional data acquired and transmitted in step S10 of FIG. (4) Whether the site and the transmission location are within the allowable distance is determined based on the additional data acquired and transmitted in step S15 of FIG.
[0037]
In the determination elements (1) to (4), a score corresponding to the importance of each element is set, and when each element is affirmed, the score is added. The score obtained by adding is called the credibility rank. If none of the elements (1) to (4) is affirmed in step S27, the processing is terminated without updating the map database 5 because there is no credibility. If any element of (1) to (4) is affirmed in step S27, the process proceeds to step S28. In step S28, points are added according to the affirmed number and score, and a credibility rank is set.
[0038]
In step S29, it is evaluated whether or not the received update data is the latest data. Judge that the data is new and credible. Specifically, the determination is based on the following factors.
(5) Is the reception time and operation input time within an allowable time difference?
(6) Is the reception time and the VICS reception time within the allowable time difference?
(7) Is the reception time and travel time within the allowable time difference?
(8) Is the reception time and the transmission time within the allowable time difference?
[0039]
(5) Whether the reception time and the time when the operation input is within the allowable time difference is determined based on the additional data acquired and transmitted in step S8 in FIG. 3 and the reception time in step S26. (6) Whether the reception time and the VICS reception time are within the allowable time difference is determined based on the additional data acquired and transmitted in step S9 in FIG. 3 and the reception time in step S26. (7) Whether the reception time and the traveling time are within the allowable time difference is determined based on the additional data acquired and transmitted in step S10 in FIG. 3 and the reception time in step S26. (8) Whether the reception time and the transmission time are within the allowable time difference is determined based on the additional data acquired and transmitted in step S15 in FIG. 3 and the reception time in step S26.
[0040]
In the determination elements (5) to (8), a score corresponding to the importance of each element is set, and when each element is affirmed, the score is added to the credibility rank. If none of the elements (5) to (8) is affirmed in step S29, the process is terminated without updating the map database 5 because there is no credibility. If any element of (5) to (8) is affirmed in step S29, the process proceeds to step S30. In step S30, a score is added to the credibility rank in accordance with the number and points assigned.
[0041]
In step S31, it is determined whether or not the update data is one-way information. If it is determined that the update data is one-way information, the process proceeds to step S32. If it is determined that the update data is not one-way information, the process skips step S32 and proceeds to step S33. In step S32, it is determined whether or not the traveling direction matches the updated one-way information. The traveling direction is determined from the traveling locus of the additional data. If it is determined in step S32 that the traveling direction and the updated one-way information do not match, it is not considered that the one-way has actually traveled and confirmed, so it is determined that there is no data credibility. . Therefore, the process is terminated without updating the map database 5. If it is determined in step S32 that the traveling direction matches the updated one-way information, the process proceeds to step S33.
[0042]
In step S33, it is determined whether or not the transmission time is counterfeited. Specifically, the transmission time based on the timer of the navigation device 1 acquired in step S24 is compared with the reception time based on the timer of the map information server 3 acquired in step S26. If the difference is greater than or equal to a predetermined value, it is determined that the transmission time from the navigation device 1 is counterfeit. If it is determined in step S33 that the transmission time is counterfeit, the manufacturing number of the navigation device 1 that identifies the user is recorded, and the processing is terminated without updating the map database 5 because the update data is not credible. To do. If it is determined in step S33 that there is no forgery at the transmission time, the process proceeds to step S34.
[0043]
In step S34, it is determined whether or not the credibility rank is greater than a predetermined value. If it is determined that the credibility rank is less than or equal to a predetermined value, the update is not credible and the process is terminated without updating the map database 5. If it is determined that the credibility rank is greater than the predetermined value, the process proceeds to step S35.
[0044]
In step S35, it is determined whether update data has been transmitted from an unspecified number of users. In this embodiment, the unspecified majority is two or more different users. If the update data is from only one user, the map database 5 is not updated because the update data is not credible, and the process ends. If it is determined that update data has been transmitted from a plurality of users, the process proceeds to step S36. The number of users, which is an unspecified number of determination criteria, may be a value other than two. The greater the value, the greater the confidence.
[0045]
In step S36, the map data in the map database 5 is updated using the update data. Since the update data is determined to be credible, it is also disclosed to other authorized users. Other users can access the map database 5 of the map information server 3 to obtain update data, and store and use it as update data in their navigation device 1.
[0046]
In step S37, the provider (user) of the update data is evaluated and points are given. Points are assigned according to the reliability (credibility rank) and importance of the provided update data. The points acquired by the user are accumulated and recorded by specifying the user in the map information server 3, and the value is also transmitted to the navigation device 1 and recorded in the navigation device 1. The points can be used for communication charges with the map information server 3 and usage charges for various services.
[0047]
The importance evaluation of the update data is performed as follows, for example. The importance of the updated and changed data is classified by the data type and the importance is evaluated. Taking a road as an example, the importance can be set as expressway> national road> prefectural road> city road> general road> narrow road. Also, the importance can be set as: physical new road> real road deletion> shape change (data fraud)> actual name change> data name fraud>.
[0048]
Taking the symbol type as an example, the importance can be set in the order of prefectural office> city office> police station> school>. For facility information, "Which road the facility faces (does not face it)", "Whether it is adopted as a landmark facility for guidance information", "Whether it is registered in facility search information (Registered It is possible to set the importance level by, for example, “which type is present”.
[0049]
The importance evaluation criteria can be set for each of these elements, and the importance of the provided information can be evaluated by points. Then, the points are determined by adding or multiplying the credibility rank and the importance points.
[0050]
The map information server 3 receives the point value reported from the navigation device 1 and reduces the charge amount of various services. At this time, the point recorded in the map information server 3 is compared to check whether it is an illegal report. In addition, the communication cost used when reporting information such as update data to the map information server 3 is converted into points only when the information is adopted and disclosed and returned to the user. Thereby, when the information reported to the map information server 3 becomes high in reliability (reliability) and importance and becomes public, the user can obtain the information provision fee as a point. However, when reporting poorly credible information, points are not earned, and the communication fee spent for reporting is lost. As a result, the provision of ambiguous / unfair information can be suppressed, and the user can be guided to the discovery and provision of important information with higher credibility. Further, the map information server 3 can immediately obtain the latest information corresponding to the actual change.
[0051]
Next, a method of changing (updating) data such as map data by the user in the navigation device 1 will be described. It is the detail of step S7 of FIG. The data change is supported by the control device 11 of the navigation device 1 executing a predetermined program.
[0052]
(1) First, the control device 11 displays a menu on the monitor 18 and causes the user to select “change data” (this item can be operated only when the vehicle is stopped). (2) The user is allowed to select whether the type to be changed is “map” or “search”. (3) Let the user choose a location to change. In the case of “search”, the search screen is operated to reach the target information, and the character string of the information can be edited. In the case of “Map”, select “Screen Scroll” or “Address Search” to determine the location. (4) Change the contents to be changed by letting the user select. When the cursor on the screen is moved with the joystick, information belonging to the cursor position appears as a “related information window”. The output information is only the information part normally provided to the user when using the navigation device 1. Hereinafter, the contents of the change will be described with some examples.
[0053]
a. intersection. On the intersection, there are “change character string” and “change position / delete / add” for information that appears on the navigation screen when entering the intersection, such as “intersection name” and “one-way mark” and “mark shop mark” in the enlarged view of the intersection. it can.
[0054]
b. road. On the road, “road name” and “direction name” are displayed, and “character string change” can be performed. In addition, “shape” is displayed in the “related information window”, and the shape of the road can be changed. When this is selected, the “related information window” is closed, an “end” button is displayed at the corner of the screen, and the node position of the road shape data selected with the cursor on the previous screen is highlighted on the selected road. One node is selected from the plurality of nodes with the cursor. The selected node changes color, and when the cursor is moved here, the selected node changes its position and the shape of the road changes. When the “Select” button is pressed again, the node position is fixed. At this time, the trajectory data when traveling on the selected road may be superimposed and displayed as reference information. Here, the same or another node can be selected again with the cursor, and the shape can be further changed. Further, when “end” displayed at the corner of the screen is selected, the shape changing operation is ended, and the screen returns to the previous screen on which the “related information window” is displayed.
[0055]
c. background. On the background, the “building name”, “place name”, “facility name”, etc. of the polygon, character string, or symbol selected by the cursor are displayed in the “related information window”, and “character string change” can be performed. Furthermore, the position of a character string or symbol can be changed by selecting “change position”. In addition, the type of a symbol can be changed by selecting “change type”. When “Change Type” is selected, a list of “candidates” for change is displayed, and either can be selected with the cursor.
[0056]
d. House map. On the housing map level screen, related information “facility name”, “address”, “tenant information”, “height information”, etc. for each building is displayed in the “related information window”, and “character string change” can be performed on these. In addition, “presence / absence” of the building can be selected, and when “delete” displayed in the “related information window” is selected, the building polygon can be set to non-display.
[0057]
e. icon. On the icon, icon related information such as “facility type / position information” is displayed, and “type change / deletion / position change” can be performed.
[0058]
f. sign up. When “new” displayed in the corner of the screen is selected, a selection menu of “road” and “facility” is displayed, and the user selects one of them. When “Road” is selected, an “End” button is displayed at the corner of the screen, and all the nodes constituting the road displayed on the screen are highlighted. When one of the nodes is selected with the cursor, a new link having one new node at the other end is displayed. Here, if the user who has confirmed that this starting point is the correct position, selects this new node with the cursor, all other highlighted nodes will be erased, and the position of this new node will move according to the cursor. To do. The user operates this cursor to determine the position of the new node according to the direction of the actual new road and presses the “Select” button. The position of the new node is fixed, and when “End” is selected, the starting position of the new road And its connection direction is determined.
[0059]
After that, if the vehicle position moves in this connection direction through this origin node while traveling, the locator software determines that the vehicle is traveling on a new road that does not exist in the existing data. The position correction function for correcting the vehicle position on the road data is stopped, and travel locus data is generated. This operation is continued until the vehicle position returns to the existing road data, and the generation / registration of the new road is completed by connecting / registering the trajectory data up to that point with the above-described new road registration data. Thereafter, the map display software displays road data with reference to this registration information, and the locator software recognizes this as a regular road.
[0060]
When “facility” is selected, a list of data of symbols and icons is displayed. The user selects one desired symbol / icon with the cursor. When selected, the list screen returns to the map screen, and the selected symbol / icon is displayed at the cursor position. The user moves the cursor to a desired position and presses a “select” button to set the position. Here, a “related information window” is displayed for this new symbol / icon, and the facility name, address, telephone number, etc. can be entered using the “change character string” procedure. Thereafter, the map display software always recognizes these registered data, and when this position is displayed on the screen, this symbol / icon data is based on the existing background data that is superimposed around the registered data symbol / icon. Is displayed with priority.
[0061]
“Character string change” in these operations can be performed by selecting and correcting the text displayed on the “related information window”. The “position change” in these operations can be performed by selecting the “position change” button displayed on the “related information window” and moving the cursor on the screen. Further, the display position on the screen may be changed by changing the value of “0, 0” indicated by “display position: 0, 0” displayed on the “related information window”. In this case, “0, 0” indicates that coordinates can be changed in the XY directions in units of dots on the screen displayed using the set position of the existing data as a reference position.
[0062]
“Addition” in these operations is the same as the above-described new addition method of “facility”. “Delete” in these operations is set and registered as a non-display target by selecting “delete” for each piece of information displayed in the related information window. These changes are made possible by selecting “Confirm” and “Cancel” buttons displayed on the “Related Information Window” to select “Register change contents” and “Do not change”. It should be noted that “character string change”, “position change”, and the like can be similarly performed for data other than the above.
[0063]
(5) Registration / use of changes. The changed contents are registered and stored in the nonvolatile memory 12 of the navigation device 1 in the same format as the conventional point registration function for each case. After registration, these are listed in the “registration information list” set in the menu, and the registration information can be confirmed and re-edited by selecting these. The navigation device 1 always refers to these registration information, and when using the registration information of the point, information obtained by reading these registration information from a map data medium (CD, DVD, HDD, etc.) when reading the map data. Overwrite and use for each function.
[0064]
It is also used in the same manner as described above when another user reads the change update data published on the map information server 3 and registers and saves it in the nonvolatile memory 12 in the navigation device 1 of his / her own.
[0065]
The navigation device 1 configured as described above, the map information server 3, and the map information update system composed of them have the following effects.
(1) Since only credible map data is released to the map information server 3, other users can use credible (reliable) update data with peace of mind. Other users do not have to spend effort on authenticity of the received data.
(2) A map data provider that provides map data (a supplier that owns the map information server 3) does not need to create update data while checking on-site. Based on the provision of information from the contracting user, it is possible to create and provide credible update data with little effort and low cost.
(3) Since various kinds of additional information for evaluating credibility are provided, precise and highly accurate credibility evaluation can be performed.
(4) Since the credibility is evaluated using the VICS information, the public information can be used effectively, and the credibility can be evaluated precisely and accurately.
(5) Since forgery of update data is checked, malicious and illegal update data can be eliminated.
(6) Checking forgery of update data is determined based on the difference between the transmission time from the navigation device 1 and the reception time at the map information server 3, so it is possible to check forgery of data by an easy method. it can.
(7) Points are given to the user who provided the information, and the usage fee is returned according to the acquired points. As a result, it is possible to expect a synergistic effect in which more information is gathered by giving a reward to the user who provided the information and arousing the desire to provide the information.
(8) Since the points that can be acquired by the user are increased according to the importance of the update target map data, an incentive to provide information on map data having a high importance is generated.
(9) Since the navigation device 1 owned by the user is connected to the map information server 3 through the Internet, the credible update information actually confirmed locally from the navigation device 1 traveling in various parts of the country. Can be easily obtained. Moreover, even if a Japanese contractor provides map data of other countries, it is possible to acquire and release credible update data of other countries while in Japan. Further, more other users can easily use the released update data.
[0066]
In the above embodiment, the control program executed by the control device 11 of the navigation device has been described as being stored in the ROM. However, the present invention is not limited to this. The control program and its installation program may be provided on a recording medium such as a DVD. The recording medium need not be limited to a DVD, and a CD-ROM, a magnetic tape, or any other recording medium may be used.
[0067]
Further, these programs can be provided via a transmission medium such as a communication line represented by the Internet. In other words, the program can be converted into a signal on a carrier wave that carries the transmission medium and transmitted. When the program is provided on a recording medium or the Internet, the program may be provided in the same configuration as in FIG. For example, the recording medium 2 may be a program-provided recording medium, and the map information server 3 may be a server that provides an application program.
[0068]
Further, the car navigation device may be realized by executing the above-described control program on a personal computer. In that case, the current location detection device 13 and the input device 19 may be connected to a predetermined I / O port of a personal computer.
[0069]
In the above embodiment, the example in which the nonvolatile memory 12 is provided in the navigation device 1 has been described, but it is not necessary to limit to this content. It may be an external storage device connected by a cable or the like.
[0070]
In the above embodiment, an example of a vehicle-mounted navigation device has been described, but it is not necessary to limit to this content. It may be a portable navigation device. Further, the present invention can be applied to a case where a navigation function is installed in a mobile phone. That is, the present invention can be applied to any device that processes information relating to a map.
[0071]
In the above-described embodiment, the example in which part of the map data, that is, the information on the map is updated has been described, but it is not necessary to limit to this content. The additional information as described in the above embodiment can be applied to any data that can evaluate the authenticity of the update data. Further, the additional information need not be limited to the contents described in the above embodiment. Other additional data that can evaluate the authenticity of the update data may be used.
[0072]
In the above embodiment, if there is at least one additional information indicating that it has been confirmed locally, and if there is at least one additional information indicating that it is the latest data, it is evaluated as credible. Although the example to do was demonstrated, it is not necessary to limit to this content. If there is at least one additional information for on-site confirmation or additional information indicating the latest data, it may be credible. Further, if there is one or a predetermined number of additional information whose credibility rank is a predetermined value or more, the credibility may be determined. In other words, various combinations of additional information can be considered as criteria for evaluating credibility, and various points can also be assigned.
[0073]
In the above-described embodiment, an example has been described in which it is determined that there is no credibility unless information is provided from a plurality of users for the same update data, but it is not necessary to limit to this content. Even if information is provided from a single user, it may be determined that there is credibility if the credibility rank is high. That is, the credibility may be evaluated in various combinations for elements other than the additional information for evaluating the credibility.
[0074]
Although various embodiments and modifications have been described above, the present invention is not limited to these contents. Other embodiments conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.
[0075]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained. Since the update information on the credible map information is provided, other users can use the update information with confidence. It is also possible to provide more reliable update information easily and at low cost.
[Brief description of the drawings]
FIG. 1 is a diagram showing a map information update system of a navigation device in the present embodiment.
FIG. 2 is a block diagram of the navigation device.
FIG. 3 is a flowchart illustrating map data update processing in the navigation device.
FIG. 4 is a flowchart for explaining processing of map data update data in the map information server;
[Explanation of symbols]
1 Navigation device
2 Internet
3 Map information server
4 Control device
5 Map database
11 Control device
12 Nonvolatile memory
13 Current location detection device
14 DVD drive
15 memory
16 Communication interface
17 VICS receiver
18 Monitor
19 Input device
20 recording media
21 Communication device

Claims (13)

A map information update system comprising a map update information providing device and a map information update device connected to the map update information providing device via the Internet,
The map update information providing device includes:
First update information acquisition means for acquiring update information for updating a part of information relating to the map;
First additional information acquisition means for acquiring additional information different from the update information for evaluating the authenticity of the update information;
An output means for outputting the acquired update information and additional information;
The map information update device
Second update information acquisition means for acquiring the update information output from the map update information providing device;
Second additional information acquisition means for acquiring the additional information for evaluating the credibility of the update information output from the map update information providing device;
Credibility evaluation means for evaluating the credibility of the update information using the additional information;
Storage means for storing information;
When it is determined that the update information is credible, the update information is stored in the storage unit, and the stored update information can be used as update information for updating a part of the information related to the map. And updating means
The first additional information acquisition unit of the map update information providing device is information different from the update information, and the map update information is provided when the first update information acquisition unit acquires the update information. A map information update system characterized in that information indicating the position of the device itself is acquired as the additional information. A map information update system comprising a map update information providing device and a map information update device connected to the map update information providing device via the Internet,
The map update information providing device includes:
First update information acquisition means for acquiring update information for updating a part of information relating to the map;
First additional information acquisition means for acquiring additional information different from the update information for evaluating the authenticity of the update information;
An output means for outputting the acquired update information and additional information;
The map information update device
Second update information acquisition means for acquiring the update information output from the map update information providing device;
Second additional information acquisition means for acquiring the additional information for evaluating the credibility of the update information output from the map update information providing device;
Credibility evaluation means for evaluating the credibility of the update information using the additional information;
Storage means for storing information;
When it is determined that the update information is credible, the update information is stored in the storage unit, and the stored update information can be used as update information for updating a part of the information related to the map. And updating means
The map update information providing device includes:
Road traffic information receiving means for receiving road traffic information having transmission position information,
The additional information includes at least one of information on a position based on road traffic information having transmission position information closest to a position related to the update information in received road traffic information and information on a received time. Feature map information update system. A map information update system comprising a map update information providing device and a map information update device connected to the map update information providing device via the Internet ,
The map update information providing device includes:
First update information acquisition means for acquiring update information for updating a part of information relating to the map;
First additional information acquisition means for acquiring additional information different from the update information for evaluating the authenticity of the update information;
An output means for outputting the acquired update information and additional information;
The map information update device
Second update information acquisition means for acquiring the update information output from the map update information providing device;
Second additional information acquisition means for acquiring the additional information for evaluating the credibility of the update information output from the map update information providing device;
Credibility evaluation means for evaluating the credibility of the update information using the additional information;
Storage means for storing information;
When it is determined that the update information is credible, the update information is stored in the storage unit, and the stored update information can be used as update information for updating a part of the information related to the map. And updating means
The map update information providing device includes:
A travel locus information acquiring means for acquiring at least one of the information related to the travel locus of the vehicle and the information related to the travel time;
The additional information includes at least one of information related to a travel trajectory of a vehicle in the vicinity of the position related to the update information acquired by the travel trajectory information acquisition means and information related to a travel time. system. A map information update system comprising a map update information providing device and a map information update device connected to the map update information providing device via the Internet,
The map update information providing device includes:
First update information acquisition means for acquiring update information for updating a part of information relating to the map;
First additional information acquisition means for acquiring additional information different from the update information for evaluating the authenticity of the update information;
An output means for outputting the acquired update information and additional information;
The map information update device
Second update information acquisition means for acquiring the update information output from the map update information providing device;
Second additional information acquisition means for acquiring the additional information for evaluating the credibility of the update information output from the map update information providing device;
Credibility evaluation means for evaluating the credibility of the update information using the additional information;
Storage means for storing information;
When it is determined that the update information is credible, the update information is stored in the storage unit, and the stored update information can be used as update information for updating a part of the information related to the map. And updating means
The additional information includes at least information related to a position of the map update information providing device when the first update information acquisition unit acquires the update information,
Whether the credibility evaluation means of the map information update device is obtained by confirming the update information locally using information on the location of the map update information providing device when the update information is acquired. A map information update system characterized by evaluating credibility when it can be judged that it was obtained by evaluating and confirming on-site. A map information update system comprising a map update information providing device and a map information update device connected to the map update information providing device via the Internet ,
The map update information providing device includes:
First update information acquisition means for acquiring update information for updating a part of information relating to the map;
First additional information acquisition means for acquiring additional information different from the update information for evaluating the authenticity of the update information;
An output means for outputting the acquired update information and additional information;
The map information update device
Second update information acquisition means for acquiring the update information output from the map update information providing device;
Second additional information acquisition means for acquiring the additional information for evaluating the credibility of the update information output from the map update information providing device;
Credibility evaluation means for evaluating the credibility of the update information using the additional information;
Storage means for storing information;
When it is determined that the update information is credible, the update information is stored in the storage unit, and the stored update information can be used as update information for updating a part of the information related to the map. And updating means
The map information update device further comprises a time acquisition means for acquiring a reception time when the update information is acquired on the map information update device side,
The additional information acquisition includes at least information about a time when the first update information acquisition unit acquires the update information,
The credibility evaluation unit of the map information update device uses the information about the time when the update information is acquired and the reception time, and the update information is obtained within a predetermined time from the reception time. A map information update system characterized by evaluating whether it is new information and evaluating it as credible when it can be determined that it is new information obtained within a predetermined time. In the map information update system according to claim 5 ,
The time acquisition means of the map information update device further acquires an output time of the update information on the map update information providing device side that outputs the update information,
The credibility evaluation means of the map information update device evaluates the update information as not credible when there is a difference of a predetermined time or more between the output time and the reception time. Map information update system. In the map information update system in any one of Claims 1-6 ,
The map information update device further includes point granting means for granting points to a provider who has provided credible update information based on the credibility evaluation result by the credibility evaluation means,
The map information update system according to claim 1, wherein the points can be returned to a fee for receiving a service from the map information update device. In the map information update system according to claim 7 ,
The map information updating system, wherein the point giving means of the map information updating device gives points according to the reliability evaluated by the reliability evaluation means. The map information update system according to claim 7 or 8 ,
The map information updating system according to claim 1, wherein the point giving means of the map information updating device gives points according to the importance of the update target information of the update information. The map update information providing apparatus of the map information updating system according to any one of claims 1-9. Map information updating system of the map information updating system according to any one of claims 1-9. The map update information provision program for making a computer perform the function of the map update information provision apparatus of Claim 10 . The map information update program for making a computer perform the function of the map information update apparatus of Claim 11 .

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