WO2007072734A1 - Appareil de mise a jour de donnees, procede de mise a jour de donnees, programme de mise a jour de donnees et support d’enregistrement - Google Patents

Appareil de mise a jour de donnees, procede de mise a jour de donnees, programme de mise a jour de donnees et support d’enregistrement Download PDF

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Publication number
WO2007072734A1
WO2007072734A1 PCT/JP2006/324958 JP2006324958W WO2007072734A1 WO 2007072734 A1 WO2007072734 A1 WO 2007072734A1 JP 2006324958 W JP2006324958 W JP 2006324958W WO 2007072734 A1 WO2007072734 A1 WO 2007072734A1
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WO
WIPO (PCT)
Prior art keywords
update
data
map data
district
order
Prior art date
Application number
PCT/JP2006/324958
Other languages
English (en)
Japanese (ja)
Inventor
Yousuke Sato
Yuuki Kusumoto
Osamu Takagi
Naoto Imasaka
Tomohisa Tsukui
Ryuichi Yamada
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Priority to JP2007551057A priority Critical patent/JP4682209B2/ja
Publication of WO2007072734A1 publication Critical patent/WO2007072734A1/fr

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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
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/28—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network with correlation of data from several navigational instruments
    • G01C21/30—Map- or contour-matching
    • 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

Definitions

  • the present invention relates to a data update device, a data update method, a data update program, and a recording medium.
  • a map data storage area of a storage unit that stores map data divided into a plurality of areas having a predetermined size and a user's
  • a control unit that sets a plurality of regions that are estimated to be frequently used as the estimated usage range of the user and then transmits them to the map providing server, and update region map data corresponding to the estimated usage range set by the control unit
  • Patent Document 1 JP 2004-361188 A
  • the map data force of the area around the home centered on the home is also used as a plurality of areas estimated to be frequently used V.
  • the map data update process is executed when the user who has the map display device is not in the area around his / her home for updating, it takes time to update the map data around the current location of the user.
  • Another example is the problem that the map is updated when you move to a place where an accurate map is needed, such as a travel destination, but the map is updated.
  • a data update device is stored in a storage device mounted on a mobile body.
  • a data updating device comprising a control means for updating map data divided for each of a plurality of districts, and detecting means for detecting a current location of the moving body when updating of the map data is started And determining means for determining an update order of the districts to update the map data based on the current location and the representative location for each district.
  • a data update method is a data update method for updating map data divided for each of a plurality of districts stored in a storage device mounted on a mobile body, wherein the map Based on the detection step of detecting the current location of the mobile object when starting the update of data, and the current location and the representative location for each district, the update order of the district where the map data should be updated is determined. And a determination step of determining, and an update step of updating all or part of the map data stored in the storage device based on the update order.
  • a data update program according to the invention of claim 7 causes a computer to execute the data update method according to claim 6.
  • a recording medium according to the invention of claim 8 is characterized in that the data update program according to claim 7 is recorded.
  • FIG. 1 is a block diagram showing a functional configuration of a data updating apparatus according to an embodiment of the present invention.
  • FIG. 2 is a flowchart showing a map data update processing procedure of the data update device.
  • FIG. 3 is an explanatory diagram for explaining a method of determining an update order.
  • FIG. 4 is a block diagram illustrating a hardware configuration of the navigation device according to the embodiment.
  • FIG. 5 is a flowchart showing a map data update processing procedure of the navigation device.
  • FIG. 6 is an explanatory diagram for explaining a mesh code.
  • FIG. 1 is a block diagram showing a functional configuration of a data updating apparatus according to an embodiment of the present invention.
  • a data update device 100 that is effective in the embodiment is a computer terminal including a portable storage device that can move together with a mobile object.
  • the moving body is a movable object, such as a vehicle, a ship, or a human.
  • the data update device 100 is realized by a navigation device mounted on the vehicle, and when the mobile object is a human, the data update device 100 is realized by a mobile phone owned by the person. Realized.
  • a data update device 100 includes a storage device 101, a display unit 102, a display control unit 103, a detection unit 104, an acquisition unit 105, a determination unit 106, and a control unit 107. Prepare.
  • the storage device 101 stores various data such as map data.
  • the map data is data for displaying a map on the display screen provided in the display unit 102.
  • the map data includes road network data composed of nodes and links, and image data drawn using features related to facilities, roads, and other terrain (mountains, rivers, land).
  • Map data includes text information, facility name and address information, road and facility images, etc. May be included.
  • the map data is composed of a plurality of district data divided into a plurality of districts.
  • Each district data when displayed on the display screen, represents a predetermined district on the map.
  • a representative point is set for each district data.
  • the representative point is a point included in each district, for example, a point arbitrarily set by the manufacturer of the data update device 100 or the like.
  • One representative point may be set for each district, or multiple representative points may be set for one district.
  • Representative points represent, for example, cities with a population greater than a certain number, famous lands such as tourist spots, Shinkansen stations, and famous facilities construction sites among the districts represented by each district data.
  • a point is set.
  • the representative point is specifically represented by, for example, latitude / longitude or coordinates.
  • the information representing the representative point includes the representative point attribute in addition to the information indicating the latitude, longitude or coordinates of the representative point.
  • the attributes are, for example, the population of the city, whether or not it is a tourist spot (such as its type if it is a tourist spot), the presence or absence of a facility (station, leisure facility, etc.), and the use of the facility.
  • the storage device 101 may further store information on the movement history of the data update device 100.
  • Display unit 102 is controlled by display control unit 103 to display a map on the display screen.
  • the detection unit 104 detects the current location of the mobile object (or the apparatus main body).
  • the current location of the moving object can be detected, for example, by receiving a GPS signal of GPS satellite power.
  • the current position of the moving object may be detected according to the output values of an acceleration sensor, speed sensor, gyro sensor, etc. that detect the behavior of the moving object. Good.
  • the acquisition unit 105 acquires information such as search history information for each representative point.
  • the search history information is information indicating the number of times a search for a representative point has been performed. For example, each representative point was searched as a destination point, a transit point, or a map display target point. This is information about the number of times.
  • the search history information is stored in the storage device 101 described above together with the representative point, for example.
  • the determination unit 106 represents the current location detected by the detection unit 104 and the representative location for each district. Based on the points, the update order of the districts where the map data should be updated is determined.
  • the control unit 107 updates all or part of the map data stored in the storage device 101 based on the update order determined by the determination unit 106.
  • the control unit 107 updates the map data for each district. That is, the control unit 107 updates the district data of another district after the district data of one district is completely updated.
  • the determination unit 106 determines an update order in which the map data is updated for each district in the order of decreasing distance between the current location detected by the detection unit 104 and the representative location for each district. In this case, for a district where a plurality of representative points are set, the distance between the current point detected by the detection unit 104 and the representative point with the shortest distance from the current point is used to determine the update order. .
  • the determination unit 106 selects a representative point for each district based on the movement history of the mobile object equipped with the data update device 100, and uses the distance to the selected representative point, You may make it determine the update order of the district which should update map data. In this case, for example, a representative point where the mobile object has reached or passed a predetermined number of times or more is selected from the representative points stored in the storage device 101.
  • a point where the moving body has reached or passed a predetermined number of times or more may be selected as a representative point from arbitrary points on the map data. This does not apply to areas where there is no representative point that the mobile unit has reached or passed a predetermined number of times.
  • the current point detected by the detection unit 104 and the relevant point The distance from the representative point with the shortest distance to the current point is used to determine the update order.
  • the decision unit 106 sets the update order so that the data update is prioritized in the district where there is a representative point that the mobile unit has reached or passed a predetermined number of times over the district that does not have a representative point that has reached or passed a predetermined number of times. decide.
  • the determination unit 106 selects a representative point for each district based on the acquired search history, and Even if the distance between the current location and the selected representative location is short, the update order of the districts where the map data should be updated may be determined.
  • the determination unit 106 performs operation performance on the map data in the storage device 101. Based on the history, the update order may be determined using the representative points searched more than a predetermined number of times. For districts that have not been searched for more than a predetermined number of times, for example, for districts with multiple representative locations, the current location detected by the detection unit 104 and the current location The distance from the representative point with the shortest distance to is used to determine the update order. Note that the determination unit 106 determines the update order so that the district where there is a representative point searched more than a predetermined number of times is prioritized over the district where there is no representative point searched more than a predetermined number of times.
  • the acquisition unit 105 acquires information on the current time or the current date, and the determination unit 106 updates using a representative point having a specific attribute based on the current time or the current date.
  • the order may be determined. Specifically, for example, if the current time is 7:00 am on November 20, the renewal order is determined using a representative point that represents a famous land as a scenic spot for autumn leaves. Also, for example, if the current date is February 5, the update order is determined using the representative point representing the ski area. Also, for example, if the current date is August 3, the renewal order is determined using the representative point where the leisure pool is constructed.
  • the acquisition unit 105 may acquire various statistical data, and the determination unit 106 may determine the update order using a representative point having a specific attribute based on the various statistical data. .
  • the update order is determined by using representative points representing scenic spots and facilities ranked in a predetermined order as places to go.
  • the determination unit 106 may determine the update order in consideration of the weather when updating the map data.
  • the update order is determined using representative points that have attributes related to facilities used outdoors in fine weather, and representative points that have attributes related to facilities used indoors in rainy weather.
  • FIG. 2 is a flowchart showing the map data display processing procedure of the data updating device.
  • the current location of the moving object is detected by the detection unit 104 (step S201).
  • the determining unit 106 determines the update order (step S202).
  • the map data stored in the storage device 101 is updated for each district by the control unit 107 in the order in accordance with the determined update order (step S203), and the series of processing ends.
  • FIG. 3 is an explanatory diagram for explaining a method of determining the update order.
  • the symbols A to D attached to the ends of the four adjacent frames represent the district names on the map, respectively, and are referred to as “district A”, “district B”, “ Write “District C” and “District D”.
  • representative points 301 to 309 are set, respectively.
  • the reference numeral 310 indicates the current location of the moving object! /.
  • step S202 of the flowchart of Fig. 2 described above the determination unit 106 determines the district D including the current location 310 of the moving object detected by the detection unit 104 as the district to be updated first.
  • the representative points 301 to 308 set in the districts A to C other than the district D move to the representative points 303, 305, and 308 that are closest to the current location 310 of the moving body in each of the districts A to C.
  • the distances A to C from the current location 310 of the body are calculated.
  • the determination unit 106 determines the update order of the districts whose map data should be updated in the order of “District D, District C, District B, District A”.
  • the distances calculated when determining the update order are not limited to the distances A to C between the representative points 303, 305, and 308 and the current location 310 of the moving object, but all the representative points 301 to 309 and the current location of the moving object.
  • the distance from the point 310 may be calculated.
  • the update order can be determined by sequentially determining which district A, B, C, or D each representative point 301 to 309 is included in the order of the calculated distance.
  • a method other than the method described above may be used to determine the update order! For example, if the mobile has reached or passed through the representative point 303 in district A more than a predetermined number of times, and has reached or passed more than a predetermined number of times at other representative points! District A may be prioritized over districts B and C to determine the renewal order. In this case, the determination unit 106 determines the update order of the districts whose map data should be updated in the order of “District D, District A, District B, District C”.
  • the determination unit 106 determines the update order of the districts whose map data should be updated in the order of “District D, District A, District B, District C”.
  • the control unit 107 determines the update order of the districts whose map data should be updated in the order of “district C, district B, district D, district A”.
  • the update order is determined based on the current location of the mobile object and the representative location for each district. Based on this update order, all or part of the map data can be updated. Therefore, the map around the current location of the mobile object is immediately updated, and the user of this mobile object can check the accurate map around the current location using the map data updated by the data update device 100. it can.
  • the data update device 100 of this embodiment using the distance between the current point of the moving object and the representative point selected based on the moving history of the moving object, the entire map data or Some can be updated. Therefore, the user of this moving body can confirm an accurate map of the area that he / she frequently passes using the map data updated by the data updating apparatus 100.
  • all the map data is sorted in the order of decreasing distance between the current location of the moving object and the representative location for each district selected based on the search history. Or part can be updated. Therefore, the user of this moving body can confirm an accurate map of the area of high interest using the map data updated by the data updating device 100.
  • the district including the current location of the mobile object is updated first, and the update order of other districts is set to the distance from the current location of the mobile entity. It is possible to update all or part of the map data by making a determination according to the above. As a result, the user of this moving body can use the map data updated by the data update device 100 and confirm an accurate map around his current position.
  • FIG. 4 is a block diagram illustrating a hardware configuration of the navigation device according to the embodiment.
  • the navigation device 400 includes a CPU 401, a ROM 402, a RAM 403, a magnetic disk drive 404, a magnetic disk 405, a magnetic disk 405, an optical disk drive 406, and an optical disk 407.
  • Each component 401 to 416 is connected by a bus 420 !.
  • the CPU 401 governs overall control of the navigation device 400.
  • the ROM 402 records various programs related to navigation processing.
  • the RAM 403 is used as a work area for the CPU 401. That is, the CPU 401 controls the entire navigation device 400 by executing various programs recorded in the ROM 402 while using the RAM 403 as a work area.
  • the magnetic disk drive 404 controls reading and writing of data to the magnetic disk 405 according to the control of the CPU 401.
  • the magnetic disk 405 records data written under the control of the magnetic disk drive 404.
  • the magnetic disk 405 for example, HD (node disk) or FD (flexible disk) can be used.
  • the magnetic disk 405 stores various data used for navigation processing such as map data.
  • Map data includes background data that represents features (features) such as buildings, rivers, and the ground surface, and road shape data that represents the shape of the road. It consists of multiple district data divided by district! In this example, it is divided into four areas: “Hokkaido”, “Honshu”, “Shikoku”, and “Kyushu”.
  • the road shape data further includes traffic condition data.
  • the traffic condition data includes, for example, the presence / absence of traffic lights and pedestrian crossings, the presence / absence of highway doorways and junctions, the length (distance) of each link, road width, direction of travel, road type (high speed). Road, toll road, general road, etc.).
  • the traffic condition data stores past traffic information obtained by statistically processing past traffic information on the basis of the season / day of the week "large holidays" and the like.
  • the navigation device 400 obtains information on traffic jams currently occurring based on road traffic information received by communication IZF414, which will be described later. .
  • the force for recording the map data on the magnetic disk 405 is not limited to this.
  • the map data may be provided outside the navigation apparatus 400, not the one recorded with the hardware integrated with the navigation apparatus 400.
  • the navigation apparatus 400 acquires map data via a network through communication IZ F414, for example.
  • the acquired map data is stored in the RAM 403 or the like.
  • the optical disk drive 406 controls reading and writing of data to the optical disk 407 according to the control of the CPU 401.
  • the optical disc 407 is a detachable recording medium from which data is read according to the control of the optical disc drive 406.
  • a writable recording medium can be used as the optical disc 407.
  • the removable recording medium may be a power MO of the optical disc 407, a memory card, or the like.
  • the optical disk 407 stores update data for updating the map data recorded on the magnetic disk 406.
  • the update data is read out by the optical disk drive 406 and used for the update process of the map data.
  • the audio IZF 408 is connected to a microphone 409 for audio input and a speaker 410 for audio output. Continued.
  • the sound received by the microphone 409 is AZD converted in the sound IZF 408.
  • the microphones 409 are installed, for example, near the sun visor of the vehicle, and the number may be one or more.
  • the speaker 410 outputs a sound obtained by DZA-converting a predetermined sound signal in the sound IZF 408. Note that the sound input from the microphone 409 can be recorded on the magnetic disk 405 or the optical disk 407 as sound data.
  • Examples of the input device 411 include a remote controller having a plurality of keys for inputting characters, numerical values, and various instructions, a keyboard, and a touch panel.
  • the input device 411 may be realized by any one form of a remote control, a keyboard, and a touch panel.
  • the input device 411 may be realized by a plurality of forms.
  • the video IZF 412 is connected to the display 413. Specifically, the video IZF412 is output from, for example, a graphic controller that controls the entire display 413, a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. And a control IC that controls the display 413 based on image data.
  • a graphic controller that controls the entire display 413
  • a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately
  • VRAM Video RAM
  • a control IC that controls the display 413 based on image data.
  • the display 413 displays icons, cursors, menus, windows, or various data such as characters and images.
  • the above map data force is drawn in two or three dimensions.
  • the map data displayed on the display 413 can be displayed with a mark representing the current location of the navigation device 400 superimposed thereon.
  • the current location of the navigation device 400 is acquired by a GPS unit 415 described later.
  • the display 413 for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be used.
  • the display 413 is installed near the dashboard of the vehicle, for example.
  • a plurality of displays 413 may be installed on the vehicle, for example, near the dashboard of the vehicle or around the rear seat of the vehicle.
  • Communication IZF 414 is connected to a network via radio and functions as an interface between navigation device 400 and CPU 401.
  • the communication I / F 414 is further connected to a communication network such as the Internet via radio, and functions as an interface between the communication network and the CPU 401.
  • Communication networks include LANs, WANs, public line networks, mobile phone networks, and the like.
  • the communication IZF414 is composed of, for example, FM tuner, VICS (Vehicle Information and Communication System) Z beacon Resino, wireless navigation device, and other navigation devices. Get road traffic information such as traffic regulations. VICS is a registered trademark.
  • the GPS unit 415 receives a radio wave from a GPS satellite and transmits a vehicle (navigation device 40).
  • the output information of the GPS unit 415 is used when the current position of the vehicle (navigation device 400) is calculated by the CPU 401, together with output values of various sensors 416 described later.
  • the information indicating the current location is information that identifies one point on the map data, such as latitude'longitude and altitude.
  • Various sensors 416 output information that can determine the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor.
  • the output values of the various sensors 416 are used for the calculation of the current position by the CPU 401 and the measurement of the change in speed and direction.
  • the navigation device 400 may use the output values from the various sensors 416 as data to be recorded by the drive recorder function.
  • the navigation device 400 that omits the illustration and description includes various operations such as playback of DVDs and CDs, reception of TV broadcasts, recording, connection to the Internet, etc., in addition to the above-described configurations 401 to 416. It has a configuration that realizes the function.
  • each unit included in the data update device 100 shown in FIG. 1 are performed using programs and data recorded in the ROM 402, RAM 403, magnetic disk 405, optical disc 407, etc. in the navigation device 400 shown in FIG. This is realized by the CPU 401 executing a predetermined program and controlling each unit in the navigation device 400.
  • FIG. 5 is a flowchart showing the map data update processing procedure of the navigation device 400.
  • the current position of the vehicle is detected (step S5
  • FIG. 6 is an explanatory diagram for explaining the mesh code.
  • the mesh code is a number for distinguishing each region (mesh) 601 that divides the whole area of Japan into a certain longitude and latitude.
  • the mesh code uses the vertical position (A to N !, shift alphabet) and the horizontal position (1 to 16 !, shift numerical value), For example, “D-12”.
  • the mesh 601 may have any size, such as a 1km square mesh or a 500mm square mesh.
  • step S503 the district including the mesh code specified in step S502 is specified (step S503).
  • the mesh code strength S specified in step S502 is “D-12”
  • the mesh code of “D-12” is included in the “Hokkaido” area, so “Hokkaido” is specified in step S503. Is done.
  • the district power identified in step S503 is the district to be updated first.
  • step S504 the distance between the representative point set in a region other than the region specified in step S503 and the current point detected in step S501 is calculated (step S504). Based on the distance calculated in step S504, an update order for updating the map data for each area is determined (step S505).
  • step S505 representative points are arranged in order from the shortest distance calculated in step S504, and the arrangement of districts including the representative points is determined.
  • step S505 for example, a point where the vehicle has reached or passed a predetermined number of times or more based on the movement history of the vehicle on which the navigation device 400 is mounted is used as the representative point. Further, a point searched for a predetermined number of times or more in the navigation device 400 may be used as a representative point. Also, based on the current time or current date, the update order may be determined using a point with a specific attribute as a representative point.
  • step S505 depending on the size of the mesh 601 and the number of representative points set in each area, both the movement history and the search history are taken into account.
  • the renewal order can be determined using an arbitrary representative point as appropriate depending on the situation, such as taking both into account.
  • step S506 the map data is updated for each district in the order according to the update order determined in step S505. Specifically, after the update of one district data is completed, the next district data is updated.
  • Step S507 Until the update of the map data is completed (Step S507: No), the process returns to Step S506 to update the map data.
  • Step S507: Yes the map data is completed (Step S507: Yes)
  • the navigation device 400 is turned off. Reboot (Step S508) and end the series of processing.
  • a predetermined interruption process is performed. To stop the process.
  • the processing is interrupted, for example, the district data card being updated is restarted according to the update order determined at the time when the processing is interrupted.
  • all or part of the map data can be updated according to the current position of the vehicle when the update of the map data is started. it can.
  • the map around the current position of the vehicle is immediately updated, and the user of this vehicle uses the map data updated by the navigation device 400 to confirm an accurate map around the current position of the vehicle. be able to.
  • the map is arranged in order from the vicinity of the navigation apparatus 400 when the update of the map data is started, and from the district where the vehicle frequently passes. All or part of the data can be updated.
  • the user of this vehicle can use the map data updated by the navigation device 400 to confirm an accurate map of the district where the user frequently passes.
  • the map data is arranged in the order of the district power in the vicinity of the navigation device 400 when the update of the map data is started and searched frequently. Can be updated in whole or in part. Because of this, this vehicle The user can use the map data updated by the navigation device 400 to check an accurate map of the area of interest.
  • the district including the current location of the mobile object is updated first, and the update order of other districts is changed according to the distance from the current location of the mobile subject. It is possible to update and update all or part of the map data. Thus, the user of this vehicle can confirm an accurate map around the current position using the map data updated by the navigation device 400.
  • the map data can be updated in the update order corresponding to the position of the user.
  • map data updating method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation.
  • This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by reading the recording medium force by the computer.
  • this program may be a transmission medium that can be distributed via a network such as the Internet.

Abstract

La présente invention concerne un appareil de mise à jour de données (100) dans lequel un dispositif de stockage (101) stocke des données cartographiques comprenant des données régionales liées à une pluralité de régions divisées ; une partie détermination (104) détermine la position actuelle d’une unité mobile ; et une partie décision (106) décide, en fonction de la position actuelle déterminée et des positions représentatives des régions respectives, d’un ordre de mise à jour. Une partie contrôle (107) met à jour les données cartographiques stockées dans le dispositif de stockage (101) de telle manière que les données cartographiques soient mises à jour pour chaque région dans l’ordre de mise à jour décidé. Conséquemment, l’utilisateur peut utiliser les données cartographiques, qui ont été mises à jour dans l’ordre de mise à jour adapté à sa propre position actuelle, de manière à se rapporter à une carte correcte.
PCT/JP2006/324958 2005-12-20 2006-12-14 Appareil de mise a jour de donnees, procede de mise a jour de donnees, programme de mise a jour de donnees et support d’enregistrement WO2007072734A1 (fr)

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JP2007551057A JP4682209B2 (ja) 2005-12-20 2006-12-14 データ更新装置、データ更新方法、データ更新プログラム、および記録媒体

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JP2005366334 2005-12-20
JP2005-366334 2005-12-20

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WO2007072734A1 true WO2007072734A1 (fr) 2007-06-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009148118A1 (fr) * 2008-06-04 2009-12-10 株式会社日立製作所 Dispositif de navigation, procédé de navigation et système de navigation
JP2015190794A (ja) * 2014-03-27 2015-11-02 株式会社日立ソリューションズ データ更新方法、データ更新システム及び端末装置
JP2016040554A (ja) * 2015-11-18 2016-03-24 株式会社ナビタイムジャパン 情報処理システム、情報処理装置、情報処理方法、および、情報処理プログラム
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