WO2005116959A1 - 地図データ更新システム - Google Patents
地図データ更新システム Download PDFInfo
- Publication number
- WO2005116959A1 WO2005116959A1 PCT/JP2005/006328 JP2005006328W WO2005116959A1 WO 2005116959 A1 WO2005116959 A1 WO 2005116959A1 JP 2005006328 W JP2005006328 W JP 2005006328W WO 2005116959 A1 WO2005116959 A1 WO 2005116959A1
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- WIPO (PCT)
- Prior art keywords
- map data
- area
- update
- data
- navigation device
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/38—Electronic maps specially adapted for navigation; Updating thereof
- G01C21/3885—Transmission of map data to client devices; Reception of map data by client devices
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/10—Map spot or coordinate position indicators; Map reading aids
- G09B29/106—Map spot or coordinate position indicators; Map reading aids using electronic means
Definitions
- the present invention relates to updating map data used in a navigation device.
- a distribution center server receives area designation information for designating a region from an in-vehicle terminal such as a navigation device, extracts updated map information corresponding to the region designation information, and transmits the updated map information to a navigation device or the like.
- a map information distribution system for distributing to a vehicle-mounted terminal is known (eg, Patent Document 1).
- Patent Document 1 JP-A-2002-48574
- a map data updating system includes a navigation device that performs navigation-related processing using map data, and map data that provides map data update data to the navigation device.
- An update device wherein the map data is managed by being divided into predetermined area units, the navigation device requests the map data update device to update the map data in an arbitrary area, and the map data update device Update data of map data of a requested arbitrary area and another area having a predetermined relationship with the arbitrary area is provided to the navigation device.
- the other area having a predetermined relationship is another area having a life connection with an arbitrary area. It is preferred that.
- the relationship in which there is a vital connection is that the traffic volume of the vehicle to an arbitrary area is equal to or more than a predetermined amount. It is preferable that the relationship be
- the relationship having a life connection is a relationship in which the amount of movement of a person to an arbitrary area is equal to or more than a predetermined amount. Is preferred.
- the other area having a predetermined relationship is at least one of an arbitrary area, a highway, a toll road, and an expressway. ⁇ ⁇ ⁇
- the other areas having the predetermined relation are It is preferable that the area is another area where a city having a predetermined relationship with a city located in an arbitrary area is located.
- the other area having the predetermined relationship is another area adjacent to the specified position in the arbitrary area. Is preferred.
- the designated position in the arbitrary area is a home position designated by the navigation device.
- the predetermined area unit is preferably an administrative division unit.
- the navigation device displays at least information for specifying another area having a predetermined relationship on the display device, and displays the information on the display device. It is preferable to have an update confirmation unit for confirming with the user whether or not to update the map data of the displayed area.
- a navigation device is a navigation device included in the map data updating system according to any one of the first to tenth aspects.
- a map data updating device is a map data updating device included in the map data updating system according to any one of the first to tenth aspects.
- the map data used by the navigation device is updated.
- an arbitrary area requested to be updated is specified from map data divided and managed in predetermined area units, and an area having a predetermined relationship with the specified arbitrary area is specified. Select and update the map data of the specified arbitrary area and the selected area.
- the present invention is configured as described above, and has the following effects.
- the map data of another area having a predetermined relationship with the requested area is also updated. It is done properly and reliably. In particular, since the map data in other areas having a relationship with life in the requested arbitrary area is updated, the map data is updated appropriately and reliably in accordance with the user's living area, and A navigation device can be realized.
- FIG. 1 is a diagram showing a map data updating system used for a navigation device.
- FIG. 2 is a block diagram of an in-vehicle navigation device.
- Fig. 3 is a diagram for explaining a manner in which adjacent prefectures are added and updated in consideration of the relationship of connection in life.
- FIG. 4 is a diagram showing exchange of information between a navigation device and a data providing center regarding updating of map data.
- FIG. 5 is a diagram illustrating a manner in which adjacent prefectures are added and updated based on a home position or a specified position.
- FIG. 6 is a diagram showing a flowchart of control of processing of a navigation device in a third embodiment.
- FIG. 7 is a diagram showing a display example in which a predetermined number of prefectures to be updated are displayed.
- FIG. 8 is a diagram showing how a program is provided to a personal computer via a recording medium such as a CD-ROM or a data signal such as the Internet.
- FIG. 1 is a diagram showing a map data updating system used in a navigation device according to the present embodiment.
- the in-vehicle navigation device 1 reads map data and search data (guidance search data) from a recording medium 2 such as a CD-ROM or a DVD-ROM.
- the server 6 of the data providing center 9 reads map data and search data from the map database 7 and the search database 8, and provides updated data of the map data and the search data to the navigation device.
- the navigation device 1 is connectable to a communication device 4 such as a mobile phone.
- the navigation device 1 can be connected to a telephone network 5 via a communication device 4 and further connected to a server 6 via a telephone network 5.
- the server 6 holds from the old map data to the latest map data in the map database 7, and holds from the old search data to the latest search data in the search database 8. Therefore, the server 6 can provide the navigation device 1 via the telephone network 5 with update data for updating a part of the map data or the search data.
- the mobile phone 4 is connected to a telephone network 5 by radio.
- the navigation device 1 includes a control device 11 and a nonvolatile memory 12.
- the control device 11 also includes a microprocessor and its peripheral circuits.
- the nonvolatile memory 12 is a nonvolatile memory such as a hard disk provided inside the navigation device 1 or a flash memory.
- the nonvolatile memory 12 may be any storage device, even if the power of the navigation device 1 is turned off.
- the map database 7 and the search database 8 of the data providing center 9 have all new and old map data, search data, and the like, and therefore are mother data databases.
- the server 6 can use the map database 7 and the search database 8 to prepare the recording medium 2 having initial (unupdated) map data and search data.
- FIG. 2 is a block diagram of the in-vehicle navigation device 1.
- the navigation device 1 includes a control device 11, a nonvolatile memory 12, a current position detection device 13, a DVD drive device 14, a memory 15, a communication interface 16, an input device 17, a monitor 18, and the like.
- the current position detecting device 13 is a current position detecting device that detects the current position of the vehicle.
- a direction sensor that detects the traveling direction of the vehicle
- a vehicle speed sensor that detects the vehicle speed
- a GPS Global Positioning System
- the DVD drive device 14 is a device that mounts the recording medium 2 and reads map data and the like.
- the recording medium 2 is a DVD-ROM. Note that the recording medium may be a CD-ROM or another recording medium.
- the memory 15 is a memory that stores vehicle position information and the like detected by the current position detection device 13 and stores node information and link information on the recommended route calculated by the control device 11.
- the memory 15 is a working area of the control device 11.
- the communication interface 16 is an interface for connecting the communication device 4. Use of a mobile phone and connection to the Internet are possible via the communication interface 16.
- 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 device 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 17 is an input device for inputting a destination of a vehicle or the like when searching for a route. Also used to enter search keys. It may be a remote control or a touch panel provided on the monitor 18 screen.
- the control device 11 uses the current position information of the vehicle detected by the current position detection device 13 and map data and search data stored in the recording medium 2 and the nonvolatile memory 12 to display a road map, Performs various navigation processes such as route calculation (route search) and route guidance. Note that various processing programs executed by the control device 11 are incorporated in a ROM (not shown) provided inside the control device 11.
- the server 6 of the data providing center 9 is a computer system, and uses the map database 7 and the search database 8 to perform various processes including provision of updated data.
- the computer system of SANO 6 can be composed of various computers such as a computer for use, a workstation, and a computer.
- map data and search data used in the navigation device 1 will be described.
- Map data is information on maps, such as background (for map display) data, road (for locator) data, route search data (network data), and route guidance data (intersection name 'road name' direction name '). Data type such as direction guide facility information).
- the background data is data for displaying the background of a road or a road map.
- the road data is data used for specifying the position (current position) of the vehicle on the road and for map matching.
- the route search data is powerful data such as branch information that is not directly related to the road shape, and is mainly used when calculating a recommended route (route search).
- the route guidance data is data including an intersection name and the like, and is used to guide a recommended route to a driver or the like based on the calculated recommended route.
- the road data is, for example, link string data when a road is represented by the concept of a link, a node, and a link string. Nodes are intersections and specially designated points on roads. A link corresponds to a road between nodes, and a link sequence represents one road with multiple links.
- the link string data has known contents.
- the background data is, for example, data such as polygons and polylines. Roads are displayed using data such as polylines.
- the map data of the present embodiment divides the whole country into prefectures, and creates and manages data files for each prefecture.
- the search data is data used when searching for a desired point rather than setting it on a map. For example, when setting a destination for a route search, by inputting the name, telephone number, address, etc. of a facility, the location of the facility is obtained using search data.
- the control device 11 sets a point obtained using the search data as, for example, a destination, and performs a process such as a route search.
- the search data includes, as types, name (reading) search data, telephone number search data, address search data, and the like.
- Name search data is data used to specify a location on a map by facility name, and a data file is created for each category (genre) for each prefecture.
- the categories include, for example, "station”, “airport”, “ferry”, “department store”, "hotel”.
- Each file contains search tree data that can be searched by name And the entity data is stored.
- the telephone number search data is data used to specify a position on a map by a telephone number, and a data file is created in the first two digits of the area code.
- Each file stores search tree data and entity data that can be searched by telephone number.
- the address search data is data used to specify a position on a map by an address, and a data file is created for each prefecture in each ward.
- Each file stores search tree data and entity data that can be searched by address!
- the entity data of each search data includes data such as name information, telephone number information, address information, and location information of each facility.
- the position information in the search data is position coordinate data specified by latitude and longitude.
- the map data in the navigation device 1 is stored in file units as described above. Therefore, the map data in the navigation device 1 can be updated on a file-by-file basis.
- Update of data can be performed by selecting a menu “update map data” on a menu screen of the navigation device 1 or the like.
- the user uses the input device 17 to specify a region or range to be updated according to the instructions on the menu screen.
- the navigation device 1 notifies the data provision center 9 of the information on the specified region or range via the communication device 4 and the telephone network 5.
- the name of a prefecture or a file name created for each prefecture is notified.
- the name of the prefecture is notified. If the specified range spans multiple prefectures, inform the multiple prefectures.
- a call is made from the communication device 4, which is a mobile phone, to the telephone number of the data providing center 9, and the line is connected.
- a call is automatically made according to an instruction from the control device 11 rather than a person dialing.
- the data providing center 9 extracts the latest map data file based on the transmitted prefecture name and transmits it to the navigation device 1. At this time, the present embodiment Then, a prefecture having a predetermined relationship with the designated prefecture is extracted, and a map data file of the extracted prefecture is also transmitted to the navigation device 1.
- the transmitted update file is stored in the non-volatile memory 12, and the file management table and the like are rewritten. As a result, the latest transmitted data file can be used.
- the data providing center 9 extracts other prefectures having a predetermined relationship with the designated prefecture, and also sends the extracted map data file of the prefecture to the navigation device 1. Send.
- this content will be described.
- a relationship between a certain city and a certain city in which the amount of traffic, the amount of movement of people, and the amount of movement of goods is large can be said to be a relationship in which there is a connection in human life.
- the range of people's connection in life S can be said to be the area of life.
- the person who manages and operates the data provision center 9 conducts a comprehensive survey of other prefectures that have a connection with life in each prefecture, creates a relation table in advance, It is stored in the map database 7 of Japan. For example, actual traffic surveys, use of various statistical data issued by various public and private organizations, and traffic provided by the VICS Center (Road Traffic Information and Communication System Center) are provided. Create relational tables using information about And store it in the map database 7.
- the data providing center 9 refers to the above-mentioned relation table to the prefectures that have requested the update, extracts other prefectures that have a relationship with life, and updates the state.
- the map data of the requesting prefecture and the other prefectures having the extracted connection with life are transmitted to the navigation device 1.
- the above relation table may be created with the following relations!
- arterial roads for example, first-class national roads
- toll roads for example, toll roads
- expressways are running
- the prefectures connected by these roads may be other prefectures with the predetermined relation.
- such a connecting road may be determined in consideration of traffic volume.
- Kanagawa Prefecture and Aichi Prefecture are designated as other prefectures in consideration of National Route 1 and the Tomei Expressway and their traffic volume.
- Yamanashi Prefecture and Nagano Prefecture are also prefectures adjacent to Shizuoka Prefecture, but they are not designated as prefectures with a predetermined relationship because the traffic volume, which is information related to their daily lives, is small. Note that this is only an example, and Nagano Prefecture may be designated for other reasons.
- the prefectures with which the connections between the cities are closely related are also the prefectures having the predetermined relationship.
- Yamato City in Kanagawa Prefecture and Machida City in Tokyo Zama City in Kanagawa Prefecture and Machida City in Tokyo, Kawasaki City in Kanagawa Prefecture and Tokyo in Tokyo, etc. It is connected.
- the prefectures having such closely connected cities are stored in the relation table as the prefectures having a predetermined relationship.
- These relationships can be determined by analyzing various statistical data issued by various public and private institutions and by taking other circumstances into account.
- cities connected by rail can be cities with close connections.
- FIG. 3 is a diagram for explaining a situation in which adjacent prefectures are also added and updated in consideration of the relationship between the connecting powers ⁇ in life.
- prefecture D in the above-described relation table, data for specifying prefectures A, B, C, E, and F as prefectures having a predetermined relation is stored. ing. Therefore, when the user specifies the update of prefecture D, the map data of prefectures A to F are updated.
- FIG. 4 is a diagram showing exchange of information between the navigation device 1 and the data providing center 9 regarding updating of map data.
- the processing of the navigation device 1 is performed by the control device 11 executing a predetermined program.
- the processing of the data providing center 9 is performed by the server 6 executing a predetermined program.
- the processing on the navigation device 1 shown in FIG. 4 starts when the menu “Update Map Data” is selected on the menu screen of the navigation device 1 or the like.
- step S1 the control device 11 of the navigation device 1 selects a map data update process in accordance with the user's selection of the “update map data” menu.
- step S2 the control device 11 of the navigation device 1 confirms the update area to the user. Specifically, a message such as “Please specify the area to update map data” is output by voice or displayed on the monitor 18.
- the monitor 18 displays a map screen and a cursor. The user scrolls the map screen up, down, left, and right using the input device 17, and operates so that the cursor is over a desired area (point). When the cursor reaches the desired area (point), operate the enter button to specify the update area (point, location). Note that the update area may be specified in a range.
- step S3 the control device 11 of the navigation device 1 specifies a corresponding prefecture name by the specified update area (point).
- step S4 the control device 11 of the navigation device 1 issues an update request to the data providing center 9. More specifically, control is performed so that the mobile phone, which is the communication device 4, calls the telephone number of the data providing center 9 via the communication interface 16. When the call is connected, send an update request. An update request is made by transmitting a map data update request command and the name of the prefecture to be updated. The communication between the navigation device 1 and the data providing center 9 is performed using the digital data communication function of the mobile phone.
- step S11 the server 6 of the data providing center 9 uses the map data update request command transmitted from the navigation device 1 and the prefecture name to The update data of the map data of the prefecture is acquired from the map database 7, and the process proceeds to step SI2.
- step S12 the server 6 of the data providing center 9 refers to the above-mentioned relation table stored in the map database 7 in advance, and searches for other prefectures having a predetermined relationship with the specified prefecture. Determine if there is. If it is determined in step S12 that there is another prefecture having a predetermined relationship, the process proceeds to step S13. If it is determined that there is no other prefecture, the process proceeds to step S14. In step S13, the server 6 of the data providing center 9 acquires update data of map data of other prefectures described in the relation table from the map database 7, and proceeds to step S14.
- step S14 the server 6 of the data providing center 9 updates the map data of the specified prefecture obtained in step S11 with the map data of the other prefectures in step S14. If the update data has been obtained, the update data is transmitted to the navigation device 1.
- step S5 the control device 11 of the navigation device 1 performs a map data update process.
- the transmitted update data file is stored in the nonvolatile memory 12, and the file management table is updated.
- the transmitted update data is a file of the latest map data for that prefecture. Therefore, you can overwrite the old map data file with the update data file sent! ,.
- the map data updating system configured as described above has the following effects.
- map data for an arbitrary prefecture (arbitrary area)
- map data for other prefectures that have a specified relationship with the requested arbitrary prefecture will also be updated.
- the map data for multiple prefectures (multiple areas) is updated appropriately and reliably.
- a relationship with a large traffic volume is a relationship with a lot of traffic, and is a region where the map data of the navigation device is frequently used. Therefore, by updating those areas together with the latest map data, accurate navigation is performed in frequently used areas, and a user-friendly and reliable navigation apparatus can be realized. The same can be said for the amount of movement of a person.
- the prefectures connected by arterial roads, toll roads, expressways, etc. are also prefectures that have a predetermined relationship, so there are many opportunities to use these roads to go to other prefectures. It is also possible to appropriately receive navigation using the latest map data.
- the prefectures that have a predetermined relationship are determined in consideration of not only road traffic volume but also other statistical data and other circumstances.Therefore, prefectures that have an appropriate predetermined relationship according to various situations are determined. Can be determined.
- prefectures having a predetermined relationship are determined based on a home position or a designated position.
- the configuration of the update system according to the second embodiment is the same as that of the first embodiment, and a description thereof will be omitted.
- the control of the processing of the control device 11 and the server 6 has much in common with the first embodiment, so the description of the first embodiment will be referred to.
- FIG. 5 is a diagram illustrating a state in which adjacent prefectures are also added and updated based on the home position or the designated position.
- FIG. 5A is a diagram illustrating a case where the location 21 of the prefecture D is registered as a home location. In the case of FIG. 5 (b), it is a diagram for explaining a case where the position 22 of the prefecture D is the designated position.
- the prefectures in FIG. 5 correspond to the prefectures in FIG. 3 of the first embodiment.
- the update system of the second embodiment basically updates only the map data of the designated prefecture. However, in FIG. When the update of the map data of the prefecture D is specified, the map data of the prefectures A, B and E adjacent to the home position 21 are also updated. Since the prefectures C and F in FIG. 3 of the first embodiment are not adjacent to the home position 21, they are not selected as objects to be updated.
- the navigation device 1 transmits an update request to the data providing center 9 when an update area is specified.
- An update request is made by sending a map data update request command and the name of the prefecture to be updated.
- the home registration position is also transmitted.
- the data providing center 9 obtains the update data of the map data of the requested prefecture from the map database 7 and also transmits the update data of the map data of the prefecture adjacent to the registered home position. get.
- the prefecture adjacent to the home registration position is, for example, a prefecture adjacent to a prefectural border within a predetermined distance of the home registration position.
- the data providing center 9 transmits the acquired update data to the navigation device 1
- the update data of the transmitted map data is stored in the nonvolatile memory 12.
- FIG. 5 (b) when the update of the map data of the prefecture D is designated, the map data of the prefectures A, C and F adjacent to the designated position 22 are also updated. Since the prefectures B and E in FIG. 3 of the first embodiment are adjacent to the designated position 22, they should not be selected as targets for updating.
- the navigation device 1 transmits an update request to the data providing center 9.
- An update request is made by transmitting a map data update request command, the name of the prefecture to be updated, and the designated position.
- the specified position is the pinpoint position specified when specifying the update area. That is, the position on the map corresponding to the cursor when the update area is determined.
- the data providing center 9 obtains the update data of the map data of the requested prefecture from the map database 7, and simultaneously transmits the update data of the map data of the prefecture adjacent to the designated position transmitted. get.
- the prefectures adjacent to the designated location are, for example, the cities adjacent to the prefectural border within a predetermined distance, as well as the home registration location. It is a prefecture.
- the data providing center 9 transmits the acquired update data to the navigation device 1.
- the update data of the transmitted map data is stored in the nonvolatile memory 12.
- map data updating system configured as described above has the following effects.
- a vehicle equipped with a navigation device runs around a house. If this home is near the prefectural border, it is common to drive to the next prefecture that is adjacent to the prefectural border. In such a case, even if it is specified to update the map data only for the prefecture where the home is located, the map data for the frequently used area is also updated appropriately. As a result, the navigation device can be realized by the user's ease and convenience.
- the navigation device 1 displays the names of prefectures having a predetermined relationship, and asks whether to update them or not. .
- the configuration of the update system according to the third embodiment is the same as that of the first embodiment, and a description thereof will not be repeated.
- FIG. 6 is a flowchart of a process control of the navigation device 1 according to the third embodiment. It is a figure showing a yat.
- the processing of the navigation device 1 is performed by the control device 11 executing a predetermined program. It starts when the menu "Update map data" is selected on the menu screen of the navigation device 1 or the like.
- step S21 the user confirms the update area. Specifically, a message such as "Please specify the area to update map data" is output by voice or displayed on the monitor 18.
- the monitor 18 displays a map screen and a cursor.
- the user uses the input device 17 to scroll the map screen up, down, left, and right, and operates so that the cursor is over a desired area (point).
- the decision button When the cursor comes to the desired area (point), operate the decision button to specify the update area (point, location). It is recommended to specify the renewal area within the range.
- step S22 a predetermined number of prefectural names to be updated are displayed, and “YES” or “NO” buttons are displayed together with the message “Would you like to update”.
- the names of the prefectures to be updated are the prefectures in the designated area and the prefectures that have a predetermined relationship with the prefectures.
- the other prefectures having the predetermined relation It is a prefecture.
- a specified number of prefecture names are displayed in order of the designated prefecture power.
- FIG. 7 is a diagram showing a display example of step S22.
- Shizuoka Prefecture is designated, and Aichi Prefecture and Kanagawa Prefecture, which pass through the Tomei Expressway, are displayed as prefectures having a predetermined relationship.
- the predetermined number of update targets is three.
- a “YES” and “NO” button are displayed with a message to confirm the update.
- step S23 it is determined whether the “YES” button has been pressed or the "NO” button has been pressed. If the “YES” button has been pressed in step S23, the process proceeds to step S24. If the “NO” button has been pressed, the process skips step S24 and proceeds to step S25.
- step S24 the update request related to the prefecture displayed in step S22 is temporarily stored in the memory 15, and the process proceeds to step S25.
- step S25 other prefectures are also updated A message is displayed asking whether or not to make an entry, and the input is determined. Steps
- the process returns to step S22 to display the name of the next update candidate prefecture, and repeats the processing.
- the prefecture to be the next update candidate is a prefecture that is considered to be next to the prefecture displayed in the previous step S22.
- step S25 when there is an input instruction not to update another prefecture, the process proceeds to step S26.
- step S26 it is determined whether at least one update request is stored in the memory 15. If it is determined in step S26 that at least one update request is stored, the process proceeds to step S27, and if it is determined that no update request is stored, the process ends.
- step S27 an update request for all prefectures stored in the memory 15 is transmitted to the data providing center 9.
- the update request is made in the same manner as in the first embodiment, and is sent by transmitting a map data update request command and all the prefectures having requests to be updated.
- step S28 the transmission of the update data from the data providing center 9 is waited, and when there is the transmission, the data is received.
- the server 6 of the data providing center 9 updates the map data of all applicable prefectures with the map data. Obtained from database 7 and transmitted to navigation device 1.
- step S29 the control device 11 of the navigation device 1 performs a map data update process. More specifically, all transmitted update data files are stored in the nonvolatile memory 12, and the file management table is updated.
- map data updating system configured as described above has the following effects.
- Updates of map data for prefectures that have a specified relationship with the prefecture for which update was specified are checked for updates, so map data for only prefectures that need to be updated more reliably are required. Updates can be made. In other words, the minimum required update can be performed reliably.
- the minimum required update can be performed reliably.
- step S22 The names of prefectures displayed in step S22 may be individually selected. As a result, the necessary updates can be individually specified for each prefecture, and the updates can be determined and performed in detail.
- map data is divided and managed in administrative divisions of prefectures, but the present invention is not necessarily limited to this content.
- it may be a unit of administrative division such as ward, town and village. It may be divided into local units such as the Kanto region, the Tokai region, and the Kinki region.
- the map data may be managed based on the concept of a level, a block, and a mesh! /. For example, map data is divided into seven levels with different scales, the level of the most detailed scale is set to level 0, and the level of the widest area map is set to level 6. The minimum unit divided at each level is defined as the mesh of that level, and the area where several meshes are collected is defined as a block.
- a mesh or block is a concept in which a map is divided into a grid (mesh). Map data may be managed in such a mesh or block unit.
- map data stored in the nonvolatile memory 12 of the navigation device 1 in units of prefectures may be updated in units of prefectures in the memory.
- the update of the map data has been described.
- the present invention can be applied to, for example, updating of search data.
- the example in which the navigation device 1 and the data providing center 9 are connected via the telephone network 5 is not necessarily limited to this content. You can connect via the Internet. You may use another dedicated line.
- the DVD drive 14 is mounted on the navigation device 1, but the present invention is not necessarily limited to this. It has only non-volatile memory 12 such as a hard disk, and all map data and search data should be acquired by communication. It may be.
- a slot such as an IC card is provided in the navigation device 1, and update data of search data is provided using a removable memory such as an IC card.
- the power described in the example of the navigation device mounted on the vehicle is not necessarily limited to this content.
- the present invention can be applied to a portable navigation device.
- the present invention can be applied to navigation using a mobile phone. In this case, the mobile phone itself having the navigation function becomes the navigation device.
- the program executed by the navigation device 1 and the server 6 has been described as an example already installed in each device, but it is not necessary to limit to this content.
- These programs may be provided on a recording medium such as a DVD or a CD-ROM. In this case, a device is required in which each device reads data from the recording medium.
- these programs may be provided via a transmission medium such as a communication line represented by the Internet. That is, it is also possible to convert the program into a signal on a carrier wave that carries the transmission medium and transmit the signal.
- the navigation device 1 in the map data updating system shown in FIG.
- the control program for the navigation device 1 described above may be executed on a personal computer to realize the navigation device.
- the current position detection device 13 and the like should be connected to a predetermined IZO port of the personal computer.
- FIG. 8 is a diagram showing how the above-described program is provided to the personal computer 100 through a recording medium such as a CD-ROM or a data signal such as the Internet.
- the reference numeral 100 is the same for the power navigation device 1 @ Sano 6 which shows an example of a personal computer.
- the personal computer 100 receives the program via the CD-ROM 104.
- the personal computer 100 has a function of connecting to the communication line 101.
- the computer 102 is a server computer that provides the above program, and stores the program on a recording medium such as the hard disk 103.
- Communication line 101 The Internet, a communication line such as a personal computer communication, or a dedicated communication line.
- the computer 102 reads the program using the hard disk 103 and transmits the program to the personal computer 100 via the communication line 101. That is, the program is embodyed into a carrier wave as a data signal and transmitted via the communication line 101.
- the program can be supplied as a computer-readable computer program product in various forms such as a recording medium and a carrier wave.
- map data is managed on a prefecture-by-prefecture basis without discrimination of data types, but it is not necessarily limited to this content.
- the data may be divided into data types such as background data, road data, route search data, and route guidance data, and managed by prefecture.
- the management is not limited to the unit of prefecture, but may be the case of management in units of other administrative divisions, meshes or blocks.
- the data providing center 9 has a relation table of prefectures having a predetermined relation in the data providing center 9, but the present invention is not necessarily limited to this example. Absent. It may be provided on the navigation device 1 side. That is, when the prefecture to be updated is designated in the navigation device 1, the prefecture having a predetermined relationship is extracted with reference to the relation table of the navigation device 1, and the information on the extracted prefecture is extracted. What is necessary is just to transmit to the data provision center 9. The data providing center 9 may transmit all update data relating to a plurality of prefectures requested by the navigation device i.
- a Japanese administrative section such as a prefecture has been described, but the present invention is not necessarily limited to this. It may be an administrative division in each country of the world, or a local unit in each country. Also, it may be a parcel of country unit or regional unit where several countries are gathered! /.
Abstract
Description
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JP2004160762A JP2005338687A (ja) | 2004-05-31 | 2004-05-31 | 地図データ更新システム |
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WO2009060771A1 (ja) * | 2007-11-08 | 2009-05-14 | Honda Motor Co., Ltd. | ナビゲーション装置およびデータ更新方法およびプログラム |
CN112417176A (zh) * | 2020-12-09 | 2021-02-26 | 交通银行股份有限公司 | 基于图特征的企业间隐性关联关系挖掘方法、设备及介质 |
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JP4779401B2 (ja) * | 2005-03-29 | 2011-09-28 | 日産自動車株式会社 | ナビゲーション装置、地図データ更新システム、地図データ更新方法 |
JP2007132711A (ja) * | 2005-11-08 | 2007-05-31 | Aisin Aw Co Ltd | ナビゲーション装置、地図サーバ、地図更新システム、地図更新方法および地図更新プログラム |
JP4862131B2 (ja) * | 2006-03-23 | 2012-01-25 | 株式会社Jvcケンウッド | 更新用データ提供装置及びプログラム |
JP5327497B2 (ja) * | 2007-07-11 | 2013-10-30 | 日立オートモティブシステムズ株式会社 | 地図データ配信システム及び地図データ更新方法 |
JP5361369B2 (ja) * | 2008-12-22 | 2013-12-04 | 三菱電機株式会社 | 地図情報処理装置、地図情報記憶媒体、及び更新情報記憶媒体 |
JP5361370B2 (ja) * | 2008-12-22 | 2013-12-04 | 三菱電機株式会社 | 地図情報処理装置、地図情報記憶媒体、及び更新情報記憶媒体 |
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