WO2011089639A1 - 地図データ作成装置、ナビゲーション装置およびこれらを用いた地図処理システム - Google Patents
地図データ作成装置、ナビゲーション装置およびこれらを用いた地図処理システム Download PDFInfo
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- WO2011089639A1 WO2011089639A1 PCT/JP2010/000258 JP2010000258W WO2011089639A1 WO 2011089639 A1 WO2011089639 A1 WO 2011089639A1 JP 2010000258 W JP2010000258 W JP 2010000258W WO 2011089639 A1 WO2011089639 A1 WO 2011089639A1
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- 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
- G01C21/3896—Transmission of map data from central databases
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- 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
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3667—Display of a road map
- G01C21/367—Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker
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- 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
- G01C21/3889—Transmission of selected map data, e.g. depending on route
Definitions
- the present invention relates to a map data creation device, a navigation device, and a map processing system using them, and more particularly to a technique for reducing the amount of map data used during movement.
- a map database included in a map processing system represented by a navigation device stores a plurality of types of map data having different scales, such as 1/2500, 1 / 25,000, or 1 / 50,000. .
- the scale of the map to be displayed is selected according to the moving speed of the moving body, except that the user selects the scale of the map with an operation button or a touch panel. Specifically, the moving speed of the moving body is detected. If the detected moving speed is equal to or lower than a predetermined speed A, the map scale X is selected. If the moving speed is higher than A and equal to or lower than B, the map scale Y is selected and moved. If the speed is greater than B, the map scale Z is selected.
- map data for displaying the selected scale map is acquired from the map database, and display data is created based on the map data.
- the created display data is converted into a video signal and sent to the display device. Thereby, a scale map corresponding to the moving speed is displayed on the screen of the display device.
- Patent Document 1 discloses a navigation device that displays a map of the surroundings at a scale corresponding to the moving speed of a moving object.
- the selection means selects a map scale corresponding to the moving speed of the mobile body detected by the speed detection means
- the arithmetic processing means selects based on the map data read from the map data storage means. Display data of the map screen around the moving body position detected by the position detecting means is generated at the scale selected by the means.
- the display control means reads the display data stored in the memory, converts it into a video signal, and causes the display means to display a map.
- the conventional navigation device described above needs to store map data at three scales because the map scale is displayed in three stages. Therefore, even when the moving speed of the route is specified, it is necessary to store map data of different scales, and there is a problem that the amount of map data increases.
- the present invention has been made to solve the above-described problems, and its object is to provide a map data creation device, a navigation device, and a map processing system using them, which can present a map and route information with a small amount of data. There is to do.
- the map data creation device includes a map database that stores map data, a route search unit that searches for a route from a departure point to a destination, and search route data that represents a route searched by the route search unit.
- the average moving speed calculating unit that calculates the average moving speed of the link based on the information assigned to the link included in the map data acquired from the map database, and the route search according to the average moving speed from the average moving speed calculating unit.
- the route searched by the unit is divided into sub-routes, a control unit that acquires map data of a scale corresponding to the moving speed of the divided sub-routes from the map database, and the map data acquired by the control unit as sub-routes
- a search route data storage unit for storing the information in association is provided.
- map data of different scales is extracted from the map database according to the route and the moving speed of moving the route, and is stored in association with the sub route.
- the travel route planned in advance and the map data can be stored with a small amount of data. Further, it becomes easy to save and carry in a storage medium such as a USB memory or an SD card.
- FIG. 1 is a block diagram showing a configuration of a map data creation device according to Embodiment 1 of the present invention.
- This map data creation device is composed of, for example, a map server.
- the map data creation device includes a request input unit 9, a transmission / reception unit 10, a search data storage unit 11, a route search unit 12, a guidance data generation unit 13, a control unit 14, a search route data storage unit 15, a map database 16, and a display unit. 19 and an average moving speed calculation unit 20 are provided.
- the request input unit 9 is composed of, for example, a keyboard having operation buttons and input keys such as alphanumeric characters and kana characters, and is used to input a user's request or operation. Data input from the request input unit 9 is sent to the control unit 14.
- the request input unit 9 can also be configured by a voice recognition device that recognizes spoken voice.
- the transmission / reception unit 10 communicates with an in-vehicle navigation device or a portable terminal via a network (not shown) such as the Internet or a LAN.
- a network such as the Internet or a LAN.
- the transmission / reception unit 10 transmits data read from the map database 16 or the search route data storage unit 15 and transmitted via the control unit 14 in response to a request.
- the search data storage unit 11 stores search data for performing address search or facility search based on information input by the user.
- the search data stored in the search data storage unit 11 is read by the control unit 14.
- the route search unit 12 searches for an optimum route that meets the user's request from the departure point to the destination using the Dijkstra method.
- the search route data representing the route searched by the route search unit 12 is sent to the search route data storage unit 15 via the control unit 14 and stored therein.
- the guidance data generation unit 13 generates information on intersections to be changed or traffic regulation information and sends the information to the control unit 14 as guidance data.
- the control unit 14 includes a request input unit 9, a transmission / reception unit 10, a search data storage unit 11, a route search unit 12, a guidance data generation unit 13, a search route data storage unit 15, a map database 16, a display unit 19, and an average moving speed calculation. Data is transmitted to and received from the unit 20, and the entire map data creating apparatus is controlled. Details of the control unit 14 will be described later.
- the search route data storage unit 15 stores search route data sent from the route search unit 12 via the control unit 14 and map data related to the route indicated by the search route data. The contents stored in the searched route data storage unit 15 are read out by the control unit 14.
- the map database 16 includes a scale map database 17 and a route network database 18.
- the scale map database 17 stores a plurality of scale maps 17a, 17b,.
- the route network database 18 includes subway network data, route network, in addition to road network data 18a such as highways, national roads, prefectural roads, municipal roads, and urban areas, and rail network data 18b such as JR and local railways. Data, air network data, public bus network data, etc. are stored.
- the road network data 18a is hierarchized according to the degree of detail of the road network.
- the whole country is divided into several areas, and roads in each area are represented by using nodes representing points on the road, links representing roads, and link strings representing road connections.
- a link is assigned a moving speed when passing through the link.
- the moving speed is assigned from actual data on the number of lanes and the number of cruising vehicles in a range that does not exceed the regulation speed, such as 90 km / h on an expressway and 70 km / h on a motorway.
- the display unit 19 displays various information according to the display data sent from the control unit 14.
- the average moving speed calculation unit 20 sequentially determines the moving distance on the link and the link from the starting point of the route indicated by the searched route data sent from the searched route data storage unit 15 via the control unit 14.
- the average moving speed is calculated from the allocated moving speed.
- the average moving speed calculated by the average moving speed calculating unit 20 is sent to the control unit 14.
- FIG. 3 shows an example of input information input by the user and search information presented to the user after the search by the route search unit 12.
- the input information is the left column of FIG. 3, search information (search route). Is shown in the right column.
- request input is performed (step ST1). That is, the user inputs information on a trip to be started, that is, a departure place, a departure date and time, a destination, and a type of moving means from the request input unit 9.
- a transit point if there is a transit point, the transit point, arrival order, and moving means between them are input.
- Figure 3 shows an example of starting from the departure point (JR Tokyo Station Marunouchi Central Exit) by car at 9 am on June 1 and moving to JR Meriken Park via JR Kyoto Station. Is shown.
- the route search unit 12 searches the route with priority on the input movement section and the movement speed.
- step ST2 If a request is input in step ST1, that is, if the input information shown in FIG. 3 is input, then a route search is performed (step ST2). That is, the route search unit 12 searches for an optimal route from the road network data 18a in the map database 16 (from other railway network data 18b, subway network data 18c,... When the moving means is changed). Information indicating the search route is presented to the user.
- step ST3 the searched route obtained by the route search in step ST2 is stored (step ST3). That is, the route searched by the route search unit 12 is stored in the searched route data storage unit 15 via the control unit 14.
- step ST4 a process of dividing into sub-routes is performed (step ST4). That is, the average moving speed calculation unit 20 sequentially calculates the average moving speed from the moving distance on the link and the moving speed assigned to the link from the departure point of the route stored in the searched route data storage unit 15 in step ST3. Is sent to the control unit 14. If the average moving speed from the average moving speed calculating unit 20 is within a predetermined speed category, the control unit 14 includes the same link as the previous link in the same section, and the average moving speed exceeds the speed category. If it changes, it becomes another section. In the case of another section, the average moving speed is calculated from the moving distance and the moving speed assigned to the link of the section sequentially from the starting point of the section.
- the process of dividing into sections is performed while calculating the average moving speed.
- Let the divided sections be sub-route 1, sub-route 2,.
- the searched route is divided into sub-routes corresponding to the average moving speed.
- the search route is sub route 1 from the starting point to Tokyo IC, sub route 2 from Tokyo IC to Kyoto Higashi IC, sub route 3 from Kyoto Higashi IC to JR Kyoto Station, JR Kyoto Station Is composed of six sub-routes: sub-route 4 from Kyoto Minami IC, sub-route 5 from Kyoto Minami IC to Nishinomiya IC, and sub-route 6 from Nishinomiya IC to the destination.
- the expected travel time is 5 hours and 40 minutes from the departure point to the stopover point, and 1 hour and 50 minutes from the stopover point to the destination (arrival point), and a route that arrives within the user's desired arrival date and time is being searched.
- the moving speed is 50 km / h for sub-path 1, 90 km / h for sub-path 2, 40 km / h for sub-path 3, 30 km / h for sub-path 4, and 30 km / h for sub-path 5.
- 70 km / h and subpath 6 are 35 km / h. It should be noted that the user can refer to the result of the search route and change the input information and execute the route search again if it does not match the desired result.
- step ST5 the control unit 14 sets “1” as the initial value of the sub route number assigned to the sub route read from the searched route data storage unit 15.
- a map scale corresponding to the moving speed is determined (step ST6). That is, the control unit 14 reads the search route data of the sub route corresponding to the sub route number from the search route data storage unit 15, and determines the classification of the moving speed of the sub route indicated by the read search route data.
- FIG. 4 shows an example of the classification of the moving speed of the moving means.
- the movement speed and the scale are associated as follows. That is, when traveling by car, a speed of 21 km / h or less is 1/250 scale as section (1), a speed of 21 to 40 km / h is a scale of 1/2500 as speed of section (2) and 41 to 60 km / hour. h is 1/5000 scale as section (3), 61 to 80 km / h is 1 / 10,000 scale as section (4), and 15,000 scale is 15,000 scale as section (5) at speeds of 81 km / h and higher. It has been established.
- the map scale is 1/5000. That is, a map with a scale of 1: 5000 including the start point and end point of sub route 1 (JR Tokyo Station and Tokyo IC of Tomei Expressway in the example shown in FIG. 3) is selected.
- map data of an area including the start point and end point of the sub route is stored (step ST7). That is, the control unit 14 reads out the scale map determined in step ST ⁇ b> 6 from the map database 16 and stores the map in the search route data storage unit 15. For example, when it is determined in step ST6 that the map scale corresponding to the moving speed is 1/5000 scale, map data of 1/5000 scale is read from the map database 16, and the map data of the sub route 1 is read. Is stored in the searched route data storage unit 15.
- FIG. 5 shows a sub route and a data structure storing information of the sub route.
- the data of the sub route 1 includes start point coordinates, end point coordinates, passing point coordinates, moving means, moving speed, scale, route network data, scale map data, route guidance data, and the like.
- the scale map data includes road attributes and feature attributes.
- the road attributes include road type (high speed, urban high speed, national highway, prefectural road, municipality), one-way traffic restrictions, toll flag, number of lanes, and the like.
- the feature attributes include a feature name such as a building, a position, a shape, a height, a feature type mark for identifying a type of business, and a business type.
- the route guidance data includes intersection names, caution point data, map scale change point data, and the like.
- step ST8 it is checked whether or not the sub route number is the last number. That is, the control unit 14 checks whether or not the processing for all the sub-paths divided in step ST4 has been completed. If it is determined in step ST8 that the sub route number is not the last number, the sub route number is incremented (step ST9). Thereafter, the sequence returns to step ST6 and the above-described processing is repeated.
- FIG. 5 shows search route data created by the above-described processing. That is, this is search route data of a route arriving at Meriken Park in Kobe City 7 hours and 30 minutes after leaving JR Tokyo Station, which is the departure place, at 9:00 on June 1.
- the travel route entered by the user is divided into sub-routes 1 to 6 (SR1 to SR6), and each sub-route is divided into a starting point, an ending point, a passing point position, a moving means, a moving speed, and the moving speed.
- Corresponding scale map data and road and feature attribute data are included.
- FIG. 6 is a diagram showing the concept of the scale of the map indicated by the searched route data stored in the searched route data storage unit 15.
- FIG. 6 (a) is a map with a scale of 12.5 thousand, where N1s indicated by ⁇ is a starting point, Nt1 is a transit point, and N6e is a destination.
- SR1, SR2,..., SR6 are sub-routes, and ⁇ is the start point or end point of the sub-route and represents a sub-route delimiter.
- FIG. 6A is a map of a scale that can represent the entire route, for example, a map of a scale such as 1 / 250,000 or 1: 500,000.
- (B) in FIG. 6 is a map representing the sub route 1, and the scale is 1/5000.
- N1s is a starting point and the starting point of the sub route 1
- N1e is an end point of the sub route 1
- N1p1 to N1p5 are passing points.
- sub-route 1 after leaving JR Tokyo Station, take the Uchibori-dori and Kokugae-mae intersections, take the Kasumigaseki ramp to the Metropolitan Expressway Central Loop Line, and then take the Metropolitan Expressway No. 3 Shibuya Line to reach Tokyo IC. It is represented by a 1/5000 map.
- (C) of FIG. 6 is a map of the sub route 3 and the sub route 4, and the scale is 1/2500.
- Sub route 3 is the route from Kyoto East IC to JR Kyoto Station
- sub route 4 is the route from JR Kyoto Station to Kyoto South IC, which are shown in more detailed scale.
- the searched route data storage unit 15 has a scale of 1/5000 representing the sub route 1, a scale of 1 / 5,000,000 representing the sub route 2, and the sub route 3
- a map having a scale of 1/2500 representing the sub route 4 a scale of 1/10000 representing the sub route 5
- a map having a scale of 1/2500 representing the sub route 6 is stored.
- a map of approximately 600km along the route is 15,000th, 10,000th, 5,000th, and 1 / 2500th map.
- the amount of data held by the map data creation device according to the first embodiment is much smaller and can be easily carried on a portable storage medium.
- FIG. 7 is a block diagram showing a navigation device that provides guidance using the search route data created by the map data creation device according to Embodiment 1 of the present invention.
- the navigation device includes a display unit 21, a current position detection unit 22, a guidance voice notification unit 23, a search route data storage unit 24, a control unit 25, a guidance information storage unit 26, a movement history information storage unit 27, and a recording medium input / output unit. 28, an operation unit 29 and a transmission / reception unit 30.
- the display unit 21 displays various information such as a map or a route according to display data sent from the control unit 25.
- the current position detection unit 22 includes a GPS (Global Positioning System) receiver, a gyro sensor, a speed sensor, and the like, and detects the current position. Current position data indicating the current position detected by the current position detection unit 22 is sent to the control unit 25.
- GPS Global Positioning System
- the guidance voice notification unit 23 outputs a route guidance by voice according to the voice data sent from the control unit 25.
- the search route data storage unit 24 stores the search route data created by the map data creation device described above. The search route data stored in the search route data storage unit 24 is read by the control unit 25.
- the control unit 25 includes a display unit 21, a current position detection unit 22, a guidance voice notification unit 23, a search route data storage unit 24, a guidance information storage unit 26, a movement history information storage unit 27, a recording medium input / output unit 28, and an operation unit.
- the data is sent and received between the terminal 29 and the transmission / reception unit 30, and the entire navigation apparatus is controlled.
- the guidance information storage unit 26 stores character data and voice data for the route guidance message. The contents stored in the guidance information storage unit 26 are read out by the control unit 25.
- the movement history information storage unit 27 stores time and position information as history data along the moving route. The contents stored in the movement history information storage unit 27 are read out by the control unit 25.
- the storage medium input / output unit 28 corresponds to the external data acquisition unit of the present invention, reads out data from a storage medium such as a USB memory or an SD card, and sends the data to the control unit 25 and is also sent from the control unit 25. Write data to the storage medium.
- the operation unit 29 is used for the user to input information for operating the navigation device. Data input from the operation unit 29 is sent to the control unit 25.
- the transmission / reception unit 30 transmits data (request for destination information or map data, etc.) sent from the control unit 25 to a map data creation device (map server) via a network (not shown) and returns it. The received map data and the like are received and sent to the control unit 25.
- the search route data created by the map data creation device and stored in the search route data storage unit 15 is stored in the search route data of the navigation device via the storage medium input / output unit 28 using, for example, a USB memory. Stored in the unit 24.
- the search route data stored in the search route data storage unit 15 of the map data creation device is received by the transmission / reception unit 30 via the network and stored in the search route data storage unit 24 via the control unit 25.
- the transmission / reception unit 30 corresponds to the external data acquisition unit of the present invention.
- the control unit 25 detects the current position of the moving body based on the current position data obtained from the current position detection unit 22, and reads map data centered on the detected current position from the search route data storage unit 24. At the time of departure, a 1/5000 map near JR Tokyo Station on sub route 1 is read. A map indicated by the detected current position of the moving body and the searched route data read from the searched route data storage unit 24 is displayed on the display unit 21.
- the control unit 25 extracts a route guidance point such as an intersection existing on the traveling route indicated by the searched search data read from the searched route data storage unit 24.
- the extracted route guidance point and guidance message and / or voice are stored in the guidance information storage unit 26.
- the distance between the current position and the point for route guidance is calculated, and it is determined whether or not the distance is within a preset distance range.
- the guidance message and / or voice is read from the guidance information storage unit 26 and output to the display unit 21 and / or the guidance voice notification unit 23.
- the In the sub route 1 when the entrance of the Metropolitan Expressway approaches, it is guided that it is the entrance of the city center ring line and that it enters the Shibuya line.
- the Tokyo IC which is the end point approaches, it is informed that it is the Tomei Expressway entrance and that the scale of the map to be displayed changes.
- the control unit 25 When the control unit 25 determines that the current position has entered the sub route 2, the control unit 25 reads a map with a scale of 12.5 thousand from the search route data storage unit 24 and displays the map on the display unit 21. At this time, if the current position is moved, the map image is displayed while being moved so that the current position is in the center of the display unit 21, and a guidance message and / or voice is displayed when the point of route guidance approaches within a predetermined distance range. Output.
- the timing at which the control unit 25 displays the map is, for example, read and displayed the map at a point 5 minutes before reaching the starting point of the sub route 2 or 4.2 km before the distance when traveling at 50 km / h. If configured, the state of the sub route 2 can be confirmed in advance on the display unit 21 before the moving speed changes.
- control unit 25 stores the time and position information at the time of departure in the movement history information storage unit 27, and stores the start time, the end point, and the passage time of the passage point in the movement history information storage unit 27 after the departure.
- the history data stored in the movement history information storage unit 27 is associated with the start point, end point, passage point, and transit time of the sub route stored in the search route data storage unit 24, and the search route to which the movement history is added. Data can be written to a storage medium. Thereby, even if a trip is interrupted in the middle of a movement path
- a detour route is presented to the user instead of one, or a second candidate is presented.
- a planned route may be closed due to an accident or sudden traffic restrictions after the trip starts.
- FIG. 8 shows an example of a map including the second sub route in addition to the first sub route selected by the user.
- the first sub-route represents between Okazaki IC and Kyoto-Higashi IC on sub-route 2 (SR2) selected by the user.
- the second sub route (SR7) is a route from Nagoya IC through another route to Kyoto East IC.
- the second sub route (SR7) is a route from Nagoya IC ⁇ (Tomei Hando) ⁇ Kameyama IC ⁇ (New Meishin) ⁇ Kusatsu IC ⁇ (Meishin) ⁇ Kyoto East IC.
- the moving speed is 65 km / h, and the map scale is 1 / 10,000.
- the navigation device uses the route. It is possible to guide.
- connection point of the two sub routes the moving speed changes and the scale of the map changes. Since the scale of the map displayed on the display unit 21 of the navigation device is different at the connection point between the sub route and the sub route, it may be difficult for the user to identify information around the connection point. In particular, it is convenient to display a branch map at the entrance / exit of an expressway.
- FIG. 9 is a diagram showing in detail the periphery of Kyoto Higashi IC, which is a connection point between the sub route 2 (SR2) and the sub route 3 (SR3), and the scale is 1/2500.
- SR2 sub route 2
- SR3 sub route 3
- the convenience of the user can be enhanced by expressing the sub route and the vicinity of the connection point of the sub route with a more detailed third scale map.
- this is not limited to the case of using only automobiles as the means of transportation, but the same applies when transferring from automobiles to other transportation means such as railroads, and include detailed maps of the area around the station to be changed and the station premises in the sub route data. As a result, the convenience of the user can be improved.
- FIG. 10 shows the travel schedule desired by the user A, the input information and the search route of the travel schedule desired by the user A and the user B who is a colleague.
- the input information A is the travel information desired by the user A
- the input information B is the travel input information desired by the user B.
- the right column of FIG. 10 is a search route searched by the map data creation device (map server), and the search route A of user A and the search route B of user B are shown.
- the rightmost column shows the relationship between the search route A and the search route B.
- a search route A that meets the desire of the user A is searched.
- the searched route A is divided into six routes from the sub route (SR1) to the sub route (SR6) according to the moving speed, and is stored in the searched route data storage unit 15 together with a scale map corresponding to the moving speed.
- the map data creation device searches the input route B for the search route B that suits the user B's wishes.
- the sub route (SR1) of the search route B departs Tokyo Station from Nozomi at 13:10 and arrives at Kyoto Station at 15:28. Thereafter, the sub route (SR2) leaves Kyoto Station at 16:00 by car, and passes through the sub route (SR3) and the sub route (SR4) before 19:00 to arrive at Meriken Park in Kobe City. Then, the ferry travels to Takamatsu via the sub route (SR5).
- the arrival at Takamatsu Port is 5:00 am the next morning, and the route arrives at the time of 6 o'clock as requested by User B.
- FIG. 11 is a diagram showing the relationship between two routes, and indicates whether or not a transfer is possible depending on the position of a point on the route and the time passing through the route.
- At least one point has the same position coordinate and overlaps When there is a point, it is expressed as A * B.
- route A B and the user of the route passes a point on route A before route B, the user of route A can transfer to route B by waiting for a delay. It is. Conversely, the user of route B cannot change from route B that is behind to route A that is ahead. If the route A and the route B are at the same time, it is possible to transfer from the route A to the route B or from the route B to the route A. In the case where the position coordinates are the same on the route A and the route B and there is an overlapping point, if the user of the route A passes through the point first, the transfer from the route A to the route B is possible. When the users of the route A and the route B reach the overlapping point at the same time, they can transfer to each other.
- the relationship shown in FIG. 11 describes the relationship between a plurality of routes.
- SR4 SR2
- the sub route (SR2) of the search route B arrives first. It is possible to transfer from the sub route (SR2) of B to the sub route (SR4) of search route A.
- the sub route of search route A (SR5) the sub route of search route B (SR3)
- the sub route of search route A (SR6) the sub route of search route B (SR4). Therefore, the user B can transfer to the user A's car and go to Kobe.
- the user B stores the searched route data shown in FIG. 10 in the IC card and moves.
- the user B leaves the company near Tokyo Station, the user B stores the departure time and the departure place on the IC card.
- the IC card reading / writing device can be installed in the ticket gate in the railway company station.
- User B gets on the 13:10 departure Nozomi according to the search route data written on the IC card, and arrives at JR Kyoto Station via Shin-Yokohama and Nagoya.
- the user B brings a portable navigation device having the same configuration as that of FIG. 7, the current position detected by the current position detection unit 22 can be displayed on the display unit 21 and visually recognized.
- User B gets off at JR Kyoto Station and waits for user A to arrive.
- the user B inserts the IC card into the storage medium input / output unit 28 of the navigation device mounted on the user A's car.
- the control unit 25 reads the search route data of the user B and stores it in the search route data storage unit 24.
- the user of the searched route data can be identified by including the mail address in the searched route data.
- the current position and time of the user A's car that has stopped at JR Kyoto Station are stored in the movement history of the user B. The user B who travels with the user moves together with the user A.
- the movement history of the user A is the same as the movement history of the user B.
- the travel history traveled by the vehicle using the search route data of the user A is stored in the sub route of the user A, and the same travel history is stored in the sub route of the user B. Therefore, if there is a movement history that the navigation device has guided with one piece of search route data, the same movement history can be left in the search route data of the user B who is a passenger who carries only the search route data. In this way, user B arrives at Meriken Park in Kobe City.
- each route is divided into sub routes, and the relationship between the sub routes is determined and stored based on the position information and time information of the sub routes. Therefore, it is possible to determine whether transfer is possible and contribute to the convenience of movement.
- the search route of the user A is accompanied by the email address of the user A so that the user can be identified. Therefore, there is an advantage that mutual search route data can be transmitted and received using communication means such as e-mail.
- FIG. 10 an example of whether or not transfer is possible is shown in FIG. 10, but the relationship indicating whether or not high-speed communication between mobile objects such as WiMAX (Worldwide Interoperability for Microwave Access) is possible is shown in FIG. Can be configured to add as
- a high-speed communication infrastructure has been established, and a communicable range is obtained from the distance between the installation position of the high-speed communication network and a network such as a road / railway.
- the map data creation device determines whether both sub routes are within the communicable section, and within the communicable section. If there is, the relationship of the sub route can be additionally written as communicable, and whether or not the sub route can communicate with each other can be indicated by a display or the like.
- the moving speed of moving the route and the map scale are stored in association with each other, the moving speed is fast and short.
- Provide high-scale map data on highways that can travel long distances and require a wide range of map data, and large and narrow areas when traveling on ordinary roads or walking on slow roads It is possible to provide map data that expresses intersections or buildings along the line in detail. As a result, it is possible to reduce the amount of map data to be stored while obtaining information suitable for the movement route.
- a plurality of search route data can be stored when carrying in a portable storage medium as a set of predetermined search route data planned along with the map data along the line, and transmitted from a server to a terminal, When transmitting and receiving between, there is an advantage that the amount of transmission data can be reduced. Therefore, even if only a simple map is prepared in the portable type navigation device, it is possible to move by inputting the search route data created by the map data creation device according to Embodiment 1 of the present invention. Detailed map information can be read and route guidance can be provided according to the section to be performed.
- the present invention can be used for portable navigation devices and car navigation devices.
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Abstract
Description
実施の形態1.
図1は、この発明の実施の形態1に係る地図データ作成装置の構成を示すブロック図である。この地図データ作成装置は、例えば地図サーバから構成されている。この地図データ作成装置は、要求入力部9、送受信部10、検索データ記憶部11、経路探索部12、誘導データ生成部13、制御部14、探索経路データ記憶部15、地図データベース16、表示部19および平均移動速度算出部20を備えている。
また制御部25が地図を表示するタイミングは例えば、サブ経路2の始点に達する、5分前、或いは50km/h走行時の距離で言えば4.2km手前の地点で地図を読み出し、表示するように構成すると、移動速度が変る前に、サブ経路2の状況を事前に表示部21で確認できる。
Claims (7)
- 地図データを記憶した地図データベースと、
出発地から目的地までの経路を探索する経路探索部と、
前記経路探索部によって探索された経路を表す探索経路データに含まれるリンクの平均移動速度を、前記地図データベースから取得した地図データに含まれるリンクに割り当てられた情報に基づき算出する平均移動速度算出部と、
前記平均移動速度算出部からの平均移動速度に応じて前記経路探索部によって探索された経路をサブ経路に分割し、該分割したサブ経路の移動速度に応じた縮尺の地図データを前記地図データベースから取得する制御部と、
前記制御部で取得された地図データをサブ経路に関連付けて記憶する探索経路データ記憶部
とを備えた地図データ作成装置。 - 探索経路データ記憶部は、サブ経路に関連付けられた地図データとして、サブ経路の始点、終点および全ての通過点を含む範囲の地図データを記憶する
ことを特徴とする請求項1記載の地図データ作成装置。 - 経路探索部は、出発地から目的地までの複数の経路を探索し、
平均移動速度算出部は、前記経路探索部によって探索された複数の経路の各々について、経路を表す探索経路データに含まれるリンクの平均移動速度を、地図データベースから取得した地図データに含まれるリンクに割り当てられた情報に基づき算出し、
制御部は、前記平均移動速度算出部からの平均移動速度に応じて前記経路探索部によって探索された複数の経路の各々をサブ経路に分割し、該分割したサブ経路の移動速度に応じた縮尺の地図データを前記地図データベースから取得し、
探索経路データ記憶部は、サブ経路に関連付けられた地図データとして、前記経路探索部で探索された複数の経路の各々のサブ経路の全ての始点、終点および通過点を含む範囲の地図データを記憶する
ことを特徴とする請求項1記載の地図データ作成装置。 - 制御部は、平均移動速度算出部からの平均移動速度に応じて経路探索部によって探索された経路をサブ経路に分割し、該分割により得られた連続した2つのサブ経路の接続点の地図データとして、該2つのサブ経路の各々の移動速度に応じた縮尺とは異なる縮尺の地図データを地図データベースから取得する
ことを特徴とする請求項1記載の地図データ作成装置。 - 情報を出力する表示部を備え、
経路探索部は、複数の経路を探索し、
平均移動速度算出部は、前記経路探索部によって探索された複数の経路の各々について、経路を表す探索経路データに含まれるリンクの平均移動速度を、地図データベースから取得した地図データに含まれるリンクに割り当てられた情報に基づき算出し、
制御部は、前記平均移動速度算出部からの平均移動速度に応じて前記経路探索部によって探索された複数の経路の各々をサブ経路に分割し、該分割したサブ経路の移動速度に応じた縮尺の地図データを前記地図データベースから取得し、
探索経路データ記憶部は、前記経路探索部で探索された複数の経路の各々について、サブ経路に関連付けられた地図データとして、サブ経路の全ての始点、終点および通過点を含む範囲の地図データを記憶し、
前記表示部は、複数の経路のサブ経路間での乗り換え可能であるか否かを判断できる情報を出力する
ことを特徴とする請求項1記載の地図データ作成装置。 - 外部から探索された経路を表す探索経路データを取得する外部データ取得部と、
前記外部データ取得部で取得された探索経路データに基づき地図を表示して探索された経路を案内する処理を行う制御部
とを備えたナビゲーション装置。 - 地図データ作成装置と、
ナビゲーション装置とを備えた地図処理システムであって、
前記地図データ作成装置は、
地図データを記憶した地図データベースと、
出発地から目的地までの経路を探索する経路探索部と、
前記経路探索部によって探索された経路を表す探索経路データに含まれるリンクの平均移動速度を、前記地図データベースから取得した地図データに含まれるリンクに割り当てられた情報に基づき算出する平均移動速度算出部と、
前記平均移動速度算出部からの平均移動速度に応じて前記経路探索部によって探索された経路をサブ経路に分割し、該分割したサブ経路の移動速度に応じた縮尺の地図データを前記地図データベースから取得する制御部と、
前記制御部で取得された地図データをサブ経路に関連付けて記憶する探索経路データ記憶部と、
前記探索経路データ記憶部に記憶されているデータを出力する出力部
とを備え
前記ナビゲーション装置は、
前記地図データ作成装置から探索経路データを取得する外部データ取得部と、
前記外部データ取得部で取得された探索経路データに基づき地図を表示して探索された経路を案内する処理を行う制御部
とを備えた地図処理システム。
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JP2011550708A JP5355718B2 (ja) | 2010-01-19 | 2010-01-19 | 地図データ作成装置、ナビゲーション装置およびこれらを用いた地図処理システム |
US13/503,006 US8600666B2 (en) | 2010-01-19 | 2010-01-19 | Map data creating device, navigation device, and map processing system using these devices |
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