WO2005068940A1 - ナビゲーション装置の経路探索方法 - Google Patents
ナビゲーション装置の経路探索方法 Download PDFInfo
- Publication number
- WO2005068940A1 WO2005068940A1 PCT/JP2004/019309 JP2004019309W WO2005068940A1 WO 2005068940 A1 WO2005068940 A1 WO 2005068940A1 JP 2004019309 W JP2004019309 W JP 2004019309W WO 2005068940 A1 WO2005068940 A1 WO 2005068940A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- link
- route
- travel time
- search
- navigation device
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096855—Systems involving transmission of navigation instructions to the vehicle where the output is provided in a suitable form to the driver
- G08G1/096866—Systems involving transmission of navigation instructions to the vehicle where the output is provided in a suitable form to the driver where the complete route is shown to the driver
-
- 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
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3492—Special cost functions, i.e. other than distance or default speed limit of road segments employing speed data or traffic data, e.g. real-time or historical
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096805—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route
- G08G1/096827—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed onboard
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096833—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route
- G08G1/096838—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route where the user preferences are taken into account or the user selects one route out of a plurality
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096833—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route
- G08G1/09685—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route where the complete route is computed only once and not updated
Definitions
- the present invention relates to a navigation device, and more particularly to a technique for searching for a recommended route of a vehicle-mounted navigation device.
- Non-Patent Document 1 Japanese Patent Office Standard Technology Collection "User Interface for Car Navigation Device 3-B-3"
- a navigation device for finding a route that minimizes the cost from the departure point to the destination is described.
- an estimated travel time or an estimated arrival time is generally displayed to assist the user in selecting a route to be used for guidance from a plurality of routes.
- Non-Patent Document 1 when obtaining the expected travel time or the expected arrival time, the cost (travel time) used in the search is used as it is. In this case, it is not possible to compare each of a plurality of routes searched using different information sources (types of information) based on an estimated travel time (expected travel time).
- the estimated travel time obtained using the link travel time included in the map data and the travel time obtained by statistically processing traffic information collected in the past are used. There may be a large difference between the estimated travel time and the estimated travel time.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a technique for outputting an estimated travel time (expected arrival time) of a route searched under different search conditions so that the travel time can be appropriately compared. Is to provide.
- the navigation device route search method of the present invention uses a predetermined link cost for calculating the estimated travel time, regardless of the search conditions used.
- the expected travel time or the estimated arrival time of the searched route is calculated.
- the link cost for calculating the estimated travel time includes, for example, traffic information collected in the past.
- the link travel time obtained by statistically processing is used.
- the present invention is configured, for example, as follows.
- a route search method for a navigation device wherein the navigation device performs link processing of link data of each link constituting a road on a map and link information obtained by statistically processing traffic information collected in the past.
- a link cost is determined by using link length information included in the link data, and the search is performed.
- the condition is set to emphasize the travel time and to search using the statistical data
- the cost of the link is determined using the link travel time included in the statistical data
- the search condition emphasizes the travel time
- the link cost is determined using the link travel time obtained from the map information included in the link data, and the total cost from the departure point to the destination is determined to be minimum. You may try to find a different route.
- the navigation device may perform route guidance using the route searched in the route searching step.
- the estimated travel time used for the route guidance may be calculated using the statistical data.
- FIG. 1 is a schematic configuration diagram of an in-vehicle navigation device 1000.
- FIG. 2 is a diagram showing a configuration example of map data stored in a map / statistical traffic data storage device 3.
- Fig. 3 shows the statistical traffic data stored in the map / statistical traffic data storage device 3. It is a figure showing the example of composition.
- FIG. 4 is a diagram showing a configuration example of a date conversion table for specifying a day type from a date.
- FIG. 5 is a diagram showing a hardware configuration of the arithmetic processing unit 1.
- FIG. 6 is a diagram showing a functional configuration of the arithmetic processing unit 1.
- FIG. 7 is a flowchart showing an outline of the operation of the on-vehicle navigation device 1000.
- FIG. 8 is a diagram showing a display example of a search condition setting screen.
- FIG. 9 is a flowchart showing a flow of a route search process using traffic information statistics.
- FIG. 10 is a flowchart showing a flow of processing for determining a link cost in S1205 in FIG.
- FIG. 11 is a flowchart showing a flow of a process for obtaining an expected travel time and an expected arrival time in S130 of FIG.
- FIG. 12 is a diagram showing a display example (map display) of a plurality of recommended routes.
- FIG. 1 is a schematic configuration diagram of an in-vehicle navigation device 1000 according to an embodiment of the present invention.
- the on-vehicle navigation device 1000 of the present embodiment includes an arithmetic processing unit 1, a display 2, a map / statistical traffic data storage device 3, a voice input / output device 4, and an input device 5.
- GPS Global Positioning System
- the arithmetic processing unit 1 is a central unit that performs various processes. For example, the current location is detected based on information output from various sensors 6-8 and the GPS receiver 9, and map data necessary for display is obtained from the map's statistical traffic data storage 3 based on the obtained current location information. read out. Also, the read map data is developed into graphics, and a mark indicating the current location is superimposed on the map data and displayed on the display 2. In addition, using the map data and the statistical traffic data stored in the map / statistical traffic data storage device 3, search for the optimal route (recommended route) connecting the destination designated by the user and the current location (departure point). Audio input and output The user is guided using the device 4 and the display 2.
- the display 2 is a unit for displaying the graphics information generated by the arithmetic processing unit 1, and includes a CRT, a liquid crystal display, and the like.
- the signal S1 between the arithmetic processing unit 1 and the display 2 is generally connected by an RGB signal or an NTSC (National Television System Committee) signal.
- the map 'statistical traffic data storage device 3 is configured by a storage medium such as a CD-ROM, a DVD-ROM, an HDD, and an IC card. This storage medium stores map data and statistical traffic data.
- FIG. 2 is a diagram showing a configuration example of map data stored in the map 'statistical traffic data storage device 3.
- map data 310 is stored for each mesh area.
- the map data 310 has an identification code (mesh ID) 311 of a mesh area and link data 312 of each link constituting a road included in the mesh area.
- the link data 312 indicates a link identification code (link ID) 3121, coordinate information 3122 of two nodes (a start node and an end node) forming the link, road type information 3123 including the link, and a link length. It has link length information 3124, link travel time information 3125, and a link ID (connection link ID) 3126 of a link connected to each of the two nodes.
- the map data 310 also includes information (name, type, coordinate information, etc.) of map components other than roads included in the corresponding mesh area.
- the link travel time 3125 is obtained from map information such as the link length and the speed limit, and is different from the travel time obtained by statistically processing past traffic information described below.
- the link travel time information 3125 can be omitted from the data. In that case, a force such as the road type 3123 and the link length information 3124 may generate the travel time of the link.
- FIG. 3 is a diagram showing a configuration example of statistical traffic data stored in the map / statistical traffic data storage device 3.
- statistical traffic data 320 is stored for each mesh area.
- the statistical traffic data 320 includes the mesh ID 321 of the mesh area and the traffic information statistics (the previously collected traffic information) of each link constituting the road included in the mesh area.
- Statistical information 322.
- the same mesh ID 321 as the mesh ID 311 of the map data 310 is used.
- the traffic information statistical data 322 includes traffic information statistical values 3224 corresponding to the collection conditions 3221 and 3222 and the link ID 3223.
- the day type of the collection condition is registered in the day type list 3221.
- the type of day should be determined for each unit in which traffic information statistics tend to be different.
- weekdays before holidays “weekdays (before holidays)”
- weekdays after holidays “weekdays (after holidays)”
- Bon, New Year, etc. V
- weekdays before tsuta unusual days “weekdays (unique days before)”
- Weekdays after the special day“ weekdays (after the special day) ” other weekdays“ weekdays (general) ”
- the first day of the special day“ holidays the beginning of the special day
- the whole day of the special days“ holiday the end of the special day
- Including other holidays “holiday (general)”!
- the weather type of the collection condition is registered in weather list 3222.
- the weather list 3222 is provided for each day type registered in the day type list 3221.
- the type of weather may be determined for each unit in which the traffic information statistical value shows a different tendency.
- the types of weather include “sunny and cloudy”, “rain”, “heavy rain”, “snow”, and “heavy snow”.
- the link ID of each link is registered in the link ID list 3223.
- the link ID list 3223 is provided for each type of weather registered in the weather list 3222.
- the same link ID as the link ID 3121 of the map data 310 is used.
- Table 3224 is a table for registering traffic information statistical values for each time zone, and is provided for each link ID registered in link ID list 3223.
- the traffic information statistics for each time zone include the link travel time (and Z or travel speed (travel speed)) specified by a plurality of traffic information on which these are based.
- the traffic information statistics for each time zone are classified according to the conditions for collecting the underlying traffic information (the type of day and the type of weather when the underlying traffic information was collected) and the target link. That is, the target link of the traffic information statistical value for each time zone registered in a certain table 3224 is a link specified by the link ID of the link ID list 3223 associated with this table 3224.
- the traffic information on which these statistical values are based is the weather specified by the weather type in the table 3222 associated with the link ID list 3223 in which this link ID is registered, and Day type list associated with the weather list 3222 in which the weather type is registered Exchanges collected on the day specified by the day type in 3221 Information.
- the map / statistical traffic data storage device 3 stores a date conversion table that is a conversion table for specifying the type of day registered in the day type list 3221 from the date.
- FIG. 4 is a diagram illustrating a configuration example of a date conversion table. As shown in the figure, a date 331 and a day type 332 corresponding to the date 331 are registered in association with each other. By using such a date conversion table, the type of day can be easily specified from the date.
- the voice input / output device 4 converts the message to the user generated by the arithmetic processing unit 1 into an audio signal and outputs the signal, and also performs a process of recognizing a voice uttered by the user and transferring the content to the arithmetic processing unit 1. .
- the input device 5 is a unit that receives instructions from the user, and includes a hard switch such as a scroll key and a scale change key, a joystick, a touch panel attached on a display, and the like.
- the sensor 6-8 and the GPS receiver 9 are used to detect the current location (the position of the own vehicle) in the in-vehicle navigation device.
- the wheel speed sensor 6 measures the product distance between the circumference of the wheel and the measured number of rotations of the wheel, and further measures the angle at which the moving body is bent, which is the differential force between the number of rotations of the paired wheel.
- the geomagnetic sensor 7 detects the magnetic field held by the earth and detects the direction in which the moving object is facing.
- the gyro 8 includes an optical fiber gyro, a vibrating gyro, and the like, and detects an angle at which the moving body rotates.
- the GPS receiver 9 receives the GPS satellite power signal and measures the distance between the mobile unit and the GPS satellites and the rate of change of the distance for three or more satellites. Measure the heading.
- the in-vehicle LAN device 11 stores various information of the vehicle equipped with the on-vehicle navigation device of the present embodiment, for example, information on the opening and closing of doors, information on the lighting status of the lights, the status of the engine and the results of fault diagnosis. receive.
- the FM multiplex broadcast receiving device 12 receives the approximate current traffic data, traffic regulation information, and weather information transmitted from the FM multiplex broadcast station as FM multiplex broadcast signals.
- the beacon receiving device 13 receives the current traffic data including the link travel time transmitted by the beacon power.
- FIG. 5 is a diagram illustrating an example of a hardware configuration of the arithmetic processing unit 1.
- the arithmetic processing unit 1 has a configuration in which each device is connected by a bus 32.
- the arithmetic processing unit 1 includes a CPU (Central Processing Unit) 21 for executing various operations such as numerical operations and controlling each device, and map data, statistical traffic data and the like read from the map's statistical traffic data storage device 3.
- a RAM (Random Access Memory) 22 for storing operation data
- ROM (Read Only Memory) 23 for storing programs and data
- DMA Direct Memory
- a drawing controller 25 that executes graphics drawing and controls display
- VRAM Video Random Access Memory
- a color palette that converts the image data into RGB signals.
- a / D conversion 28 that converts analog signals into digital signals
- SCI Serial Communication Interface
- SCI Serial Communication Interface
- a barrel signals in synchronization with the bus has a PIO (Parallel Input / Output) 30 put on the bus, a counter 31 for integrating a pulse signal.
- FIG. 6 is a diagram showing a functional configuration of the arithmetic processing unit 1.
- the arithmetic processing unit 1 includes a user operation analysis unit 41, a route search unit 42, a route data storage unit 43, a route guidance unit 44, a map display processing unit 45, and a current position calculation unit. It has a section 46, a map match processing section 47, a data reading section 48, a trajectory storage section 49, a menu display processing section 50, and a graphics processing section 51.
- the current position calculation unit 46 uses the distance data and the angle data obtained as a result of integrating the distance pulse data S5 measured by the wheel speed sensor 6 and the angular acceleration data S7 measured by the gyro 8, respectively.
- the current position ( ⁇ ⁇ , ⁇ ') which is the position after the vehicle is running, is calculated periodically from the initial position (X, Y), and the map match processing unit 47 Perform output processing.
- the heading data S6 obtained from the geomagnetic sensor 7 and the angle data obtained by integrating the angular acceleration data S7 obtained from the gyro 8 are referred to.
- the vehicle is moving Estimate the absolute azimuth of the direction.
- errors accumulate.Therefore, errors accumulated based on the position data S8 obtained from the GPS receiver 9 in a certain time period are accumulated. And outputs the information of the current location to the map match processing unit 47.
- the map match processing unit 47 collates the map data around the current position read by the data reading unit 48 with the running locus stored in the locus storing unit 49, which will be described later, to determine the correlation between the shapes. If the current location periodically output from the current position calculator 46 is matched with the highest road (link), the map matching process is performed. Since the current position information obtained by the current position calculation unit 46 includes a sensor error, a map matching process is performed for the purpose of further improving the position accuracy. As a result, the current location often coincides with the traveling road.
- the trajectory storage unit 49 stores the information on the current location on which the map matching process has been performed by the map match processing unit 47 as the trajectory data each time the vehicle travels a predetermined distance. Note that this trajectory data is used to draw a trajectory mark on the corresponding road on the map for the road that has been driven so far.
- the user operation analysis unit 41 receives a request from the user input to the input device 5, analyzes the contents of the request, and executes the processing of the arithmetic processing unit 1 so that a process corresponding to the request is executed. Control each part. For example, when the user requests a search for a recommended route, the user requests the map display unit 45 to display a map on the display 2 in order to set a destination, and furthermore, from the current location (departure location) to the destination.
- the route search unit 42 is requested to perform the process of calculating the route.
- the route search unit 42 searches for a route that minimizes the cost of a route connecting two designated points (current location and destination) by using the Dijkstra method or the like.
- the resulting recommended route is stored in the route data storage unit 43.
- the route search unit 42 calculates the link travel time 3125 or the link length 3124 in the link data 312 or the travel time in the traffic information statistical value 3224 according to the search condition specified by the operator. Route search as.
- the route search unit 42 performs a process of calculating an expected travel time and an expected arrival time for the obtained route using the link travel time in the traffic information statistical value 3224.
- the route guidance unit 44 receives an operator's force to select a route to be used for route guidance from a plurality of routes stored in the route data storage unit 43. Then, route guidance is performed on the accepted route. For example, the route information is compared with the information on the current location output from the map match processing unit 47, and the voice input / output device 4 determines whether the vehicle should go straight or turn left or right before passing an intersection or the like. To inform the user. In addition, the route guidance unit 44 displays the direction to travel on the map displayed on the display 2 and notifies the user of the recommended route.
- the route guidance unit 44 uses the statistical traffic data stored in the map / statistical traffic data storage device 3 to calculate the estimated travel time from the current position to the destination output from the map match processing unit 47. calculate. Then, by adding the calculated expected travel time to the current time, the expected arrival time at the destination is calculated and notified to the user.
- the data reading unit 48 reads map data and statistical traffic data in an area required to be displayed on the display 2 or an area required for route search (an area including a departure point and a destination). It operates to prepare to read from the map's statistical traffic data storage device 3.
- the map display processing unit 45 receives the map data in the area required to be displayed on the display 2 from the map 'statistical traffic data storage device 3, and the graphic processing unit 51 executes the specified scale and drawing. This method generates map drawing commands to draw marks such as roads, other map components, and arrows for the current location, destination, and guidance route. Further, in response to a command output from the user operation analysis unit 41, the statistical traffic data required to be displayed on the display 2 is received from the map / statistical traffic data storage device 3, and is displayed on the map being displayed on the display 2. Then, a map drawing command is generated so that the traffic information of each road is superimposed and displayed.
- the menu display processing unit 50 receives a command output from the user operation analysis unit 41, and the traffic processing unit 51 generates a menu drawing command so as to draw various types of menus and graphs. .
- FIG. 7 is a flowchart showing an outline of the operation of the in-vehicle navigation device 1000 of the present embodiment.
- This flow is started when the user operation analysis unit 41 receives a request for searching for a recommended route from the user via the voice input / output device 4 or the input device 5.
- the user operation analysis unit 41 sets the departure place, the destination, and the departure time in the route search unit 42. Specifically, the current location output from the map match processing unit 47 when a request for searching for a recommended route is received is set as the departure location. Also
- the current time acquired when a request for searching for a recommended route is received using a built-in timer or the like is set as the departure time.
- the setting of the destination is performed based on a user's instruction.
- the user operation analysis unit 41 registers the map data via the menu display processing unit 50 and the graphics processing unit 51 on the display 2 and the map via the data reading unit 48 and the map data read from the statistical traffic data storage device 3.
- the information of the displayed map component is displayed, and the user selects a destination from the information of the displayed map component via the voice input / output device 4 or the input device 5.
- the information of the location (registered location) registered in advance in the storage device such as the RAM 22 by the user is displayed, and the information of the displayed registered location is displayed by the user via the voice input / output device 4 or the input device 5.
- the destination is selected by displaying a map specified by the user and accepting designation of a point on the map from the user via the voice input / output device 4 or the input device 5.
- the vehicle The on-board navigation device 1000 also accepts a plurality of search conditions for user power. Then, a route with the minimum cost is searched for under each search condition. Therefore, in the process here, the route search unit 42 sets under what conditions the route is searched.
- the process of setting the route search condition (S110) can be omitted by setting and storing the search condition in a separate flow in advance.
- the route search unit 42 displays a search condition setting screen 500 on the display 2 via the menu display processing unit 50 and the graph status processing unit 51 as shown in FIG.
- the setting screen 500 lists search condition options 512-518 so that the user can easily set search conditions. Then, a search condition can be selected via the input device 5.
- options 515 and 516 for setting whether to search with emphasis on travel time or on travel distance as search condition options, toll road priority, and general road Options 512 and 513 for setting a specific road such as a priority to be searched with priority are displayed.
- the display screen 500 displays options 517 and 518 so that the user can set whether or not to search using statistical traffic data.
- the search conditions are not limited to these, and various settings can be made.
- the user operation analysis unit 41 converts the selected search condition into a route search unit 42 Send to The route search unit 42 sets a search condition based on the received content. Then, the route search unit 42 displays a set search condition list 530 on the screen 500 via the menu display processing unit 50 as shown in FIG.
- the route search unit 42 sets the search condition every time the search condition is selected by the user. Then, a list 530 of the search conditions already set is displayed on the screen 500.
- the route search unit 42 ends the search condition setting process and proceeds to the next process (S Move to 120).
- S Move to 120 the route search unit 42 searches for a route that meets each of the search conditions (S120).
- the route search 42 obtains a route with the minimum cost using the Dijkstra method or the like under each search condition.
- the cost of the link used for the route search differs depending on the search conditions set in S110.
- the search condition is set to emphasize travel time and use statistical traffic data.
- a route search is performed by the Dijkstra method or the like using the travel time included in the traffic information statistical value stored in 3.
- FIG. 9 is a flowchart showing the flow of a route search process using traffic statistics.
- the route search unit 42 specifies the mesh ID of each mesh area included in the area including the starting point and the destination based on the coordinates of the current position.
- the link data 312 registered in each of the map data 310 having the specified mesh ID is obtained from the map and the statistical traffic data storage device 3 via the data reading unit 48.
- the route search unit 42 reads out the date conversion table from the map / statistical traffic data storage device 3 via the data reading unit 48.
- the type of the departure date is specified using the date conversion table. If the date of the departure date is registered in the date conversion table, the processing for specifying the type of day from the date using calculation logic is executed by software incorporated in the on-board navigation device. , The day type corresponding to the departure date may be specified.
- the route search unit 42 uses the respective link data 312 obtained in S1201 to recommend a link whose start node is the end node of the extracted link from which the heap table power is also extracted in S1209 described later. It is selected as a candidate link constituting the route. However, if the processing in S1209 has not been performed, that is, in the initial stage where no link is registered in the heap table, the link starting with the end node of the extracted link as the start node is selected instead of the candidate link. At least one link where the place exists or is close to the place of departure Selected as a link (S1202).
- the route search unit 42 calculates an estimated arrival time at the end node of the extracted link. This can be calculated by adding the total travel time of the extracted link registered in the heap table to the departure time.
- the route search unit 42 also specifies the coordinate ID of the end node of the extracted link and the mesh ID of the mesh area where the end node is located. However, if the processing in S1209 has not been performed, that is, in the initial stage where no link is registered in the heap table, the mesh ID of the mesh area where the starting point is located is specified. Then, the route search unit 42, via the FM multiplex broadcast receiving device 12, sets the specified mesh ID and a target time zone (referred to as a target time zone) to which the estimated arrival time of the extracted link at the end node belongs.
- the weather information having the information is obtained (S1203). The weather may be determined from the operation status information of the wiper and the outside temperature information received via the in-vehicle LAN device 11, and the result of the determination may be used as weather information.
- the route searching unit 42 accesses the statistical traffic data 320 having the mesh ID specified in S120 3 stored in the map / statistical traffic data storage device 3 via the data reading unit 48. I do. Then, using the management data 322 of the statistical traffic data 320, for each of the candidate links, it is a traffic information statistical value of the time zone of interest, and is specified by the type of day specified in S1201 and the weather information obtained in S1203. A traffic information statistic corresponding to the type of weather to be obtained is obtained (S1204).
- the route search unit 42 calculates the cost of the candidate link using the traffic information statistical value obtained in S1204 (S1205).
- a route that gives priority to a specific road such as toll road priority or general road priority, can be searched for as search conditions. Therefore, the cost of the link is determined so that a specific road is easily selected as the link constituting the route.
- FIG. 10 is a flowchart of a process for determining a link cost.
- the route search unit 42 first checks whether the search condition is set to give priority to a specific road! (S12051). If the specific road is not set to be prioritized (No in S12051), the route search unit 42 determines the travel time included in the traffic information statistical value as it is as the link cost (S12054). [0067] On the other hand, when a setting is made such that a specific road such as a toll road priority or a general road priority is given priority (Yes in S12051), the route searching unit 42 determines whether the link belongs to a specific road. Is checked with reference to the link data 312 (S12052). If the road is not a specific road, the route search unit 42 determines the travel time included in the traffic information statistical value as it is as the link cost (S12054).
- the predetermined coefficient is for adjusting the priority of a specific road. For example, if the predetermined coefficient is set small, the cost is reduced. Then, the link is likely to be preferentially selected as a link constituting the route. Therefore, the predetermined coefficient may be adjusted depending on how much the specific road is prioritized for the route search. Further, the predetermined coefficient may be adjustable by a user.
- the route search unit 42 calculates the total cost up to the end node of the departure ground power candidate link. Specifically, the cost of the candidate link calculated in S1205 is added to the total cost of the extracted link registered in the heap table, and the addition result is set as the total cost of the candidate link. However, at the initial stage when no extracted link is registered in the heap table, the cost of the candidate link calculated in S1205 is set as the total cost of the candidate link. Then, the route search unit 42 adds the link data and the total cost of each of the candidate links to the heap table (S1207).
- the route search unit 42 checks whether or not the destination link is included in the links newly added to the heap table in S1207 performed immediately before (S1208). If it is determined that there is no destination link (No in S1208), the route search unit 42 sorts the link information registered in the heap table in ascending order of the total cost, and sorts the unextracted link located first. By extracting, for example, a candidate link (unextracted link) having the smallest total cost is extracted from the heap table (S1209). It returns to S1202.
- the route search unit 42 performs a recommended route determination process. Specifically, the link that generated the destination link (the link with the start node of the destination link as the end node) is searched from the heap table, and the detected link is determined as a constituent link constituting the recommended route. Next, the configuration link indicates that the departure Or, it is checked whether the link is a departure point link close to the departure point, and if it is not the departure point link, the link that generated this constituent link is searched, and the detected link is determined as a constituent link. Find out more about the departure link. This process is repeated until the configuration link is determined to be the departure link, thereby determining each configuration link constituting the recommended route. Then, the route search unit 42 stores the link information 312 and the traffic information statistical value obtained in S1204 in the route data storage unit 43 for each of the constituent links constituting the recommended route (S1210).
- the route search processing applicable to the present invention is not limited to the above. As long as the present invention can be implemented within the scope of the gist, other route search methods can be adopted. For example, a route search method that searches all routes from the departure point to the destination included in the assumed mesh area by the Dijkstra method on a brute force basis and searches for the route with the shortest cost among the routes is proposed. May be adopted.
- the route search unit 42 performs a route search using the travel time included in the link data 312 of the map data as the link cost.
- the route search unit 42 When the search condition is set to emphasize the travel distance, the route search unit 42 performs a route search using the link length 3124 included in the link data 312 as the cost of the link constituting the route.
- the search condition is set so that a specific road such as a toll road is preferentially searched
- the travel time of a link constituting the specific road is set so that the specific road is easily selected.
- the value obtained by multiplying the link length by a predetermined coefficient (for example, 0.5) is used as the cost.
- the route search unit 42 registers the searched route in the route data storage unit 43.
- the route searching unit 42 determines, for each of the plurality of searched routes, an estimated travel distance from the departure point to the destination. The time and expected arrival time are obtained (S130).
- the travel time or the link length included in the link data 312 in the map data, or the traffic information statistical value is used in accordance with the search conditions determined by the user. Is used as the cost. However, in calculating the expected travel time and expected arrival time, the travel time included in the traffic information statistics is used regardless of the search conditions. The search results can be easily compared by the user.
- FIG. 11 is a flowchart showing a flow of a process for obtaining an estimated travel time.
- the route search unit 42 sequentially extracts the links forming the route for each of the plurality of routes registered in the route data storage unit 42, as well as the starting link force (S1302).
- the route search unit 42 specifies the type of the departure date (S1304). Specifically, the above-mentioned date conversion table is read from the map / statistical traffic data storage device 3 via the data reading unit 48. Then, the type of the departure date is specified using the date conversion table. If the date of the departure date is registered in the date conversion table, the process of specifying the day type from the date using calculation logic is executed by software incorporated in the in-vehicle navigation device. Thus, the type of day corresponding to the departure date may be specified. By doing so, it is possible to continue the process even if the date range exceeds the date range registered in the date conversion table.
- the route search unit 42 obtains an estimated arrival time of the link (target link) extracted in S1302 to the start node (S1306). This is the time obtained by adding the total travel time obtained in S1316 to be described later to the departure time.
- the route search unit 42 outputs, via the FM multiplex broadcast receiving device 12, the weather information of the target time zone (referred to as the target time zone) to which the expected arrival time at the start node of the target link belongs.
- the weather information of the target time zone (referred to as the target time zone) to which the expected arrival time at the start node of the target link belongs.
- the operation status information of the wiper and the outside temperature information received via the in-vehicle LAN device 11 may be determined and the weather may be used as weather information.
- the route searching unit 42 calculates a travel time for the target link (S1310). Specifically, the statistical traffic data 320 stored in the map / statistical traffic data storage device 3 is accessed via the data reading unit 48. And the management data of this statistical traffic data 320 The data 322 is used to associate the target link with the traffic information statistical value of the time of interest and the type of day specified in S1304 and the type of weather specified by the weather information obtained in S1308. Obtained traffic information statistics. Then, the route search unit 42 obtains the cost (travel time) of the target link using the obtained traffic information statistical value.
- the route search unit 42 calculates the total travel time up to the end node of the departure ground force target link (S1316). Specifically, the travel time of the target link obtained in S1 310 is added to the total travel time to the start node of the target link, and the result is added to the total travel time from the departure point to the end node of the target link. I do.
- the route search unit 42 determines whether or not the above-described processing S1302-S1316 has been performed for all the links constituting the route (S1318). If the processing has not been completed for all the links (No in S1318), the route searching unit 42 returns to S1302, extracts the next link, and repeats the same processing.
- the route search unit 42 obtains an estimated arrival time at the destination. Specifically, the estimated arrival time at the destination is calculated by adding the total travel time calculated in S1316 to the departure time.
- the route search unit 42 performs the above processing S1302-1320 for all of the plurality of routes registered in the route data storage unit 43. Then, when the expected travel time and the expected arrival time are obtained for all the routes, the processing shifts to S140 in FIG.
- the route search unit 42 displays the plurality of routes obtained in S 120 on the display 2 via the menu display processing unit 50 and the graphic processing unit 51. At this time, the route search unit 42 also displays the route search conditions, the estimated travel time, the expected arrival time, and the total travel distance.
- FIG. 12 is an example of a display screen of the display 2.
- a recommended route 905A-905C for each search condition from the departure point 903 to the destination 904 is displayed.
- a search condition 912, an estimated travel time (expected arrival time) 913, and a total travel distance 915 are displayed for each route 910.
- the route guidance unit 43 accepts selection of a guidance route (S150).
- the route The guidance unit 43 displays a route selection button 920 on the display screen 909 via the menu display processing unit 50. Then, the user can easily select a route to be used for guidance via the input device 5.
- the display screen 909 also displays a button 930 for changing the search condition and performing a search again.
- the route guidance unit 43 determines the force at which the route has been selected (S150).
- the route guidance unit 43 instructs the route search unit 42 to change the search conditions and search again.
- the route search unit 42 shifts the processing to S110, sets search conditions again, and performs the route search process again.
- the user operation analysis unit 41 transmits the selected route to the route guidance unit 43.
- the route guidance unit 43 determines a guidance route and starts route guidance (S160).
- the estimated travel time from the current position to the destination and the estimated arrival time displayed during the route guidance are also included in the travel time included in the traffic information statistical value regardless of the search condition, as described above.
- the value calculated using is used.
- a plurality of search conditions can be set, and a plurality of routes matching the search conditions can be searched. Then, the searched multiple routes are displayed in a form that is easy for the user to understand.
- the expected travel time and the expected arrival time are calculated using the travel time included in the traffic information statistical value regardless of the search condition. Therefore, the travel time obtained from the same information source is displayed for a plurality of routes, so that the user can easily compare the plurality of routes. Then, it is possible to easily determine which route is adopted for route guidance.
- the cost of the link is determined based on the map data in accordance with the search condition.
- the travel time or link length included in the data or the travel time included in the traffic information statistics is used.
- route search is performed using the link travel time included in the current traffic information that can be obtained by accessing the traffic information distribution center that distributes traffic information from beacons or FM multiplex broadcasting stations or through the network It can also be done.
- the travel time included in the traffic information statistical value stored in the map 'statistical traffic data storage device 3 can be used.
- the estimated travel time and the estimated arrival time obtained by the same information source power can be displayed for a plurality of routes searched under different search conditions.
- the creation date of the statistical traffic data stored in the map / statistical traffic data storage device 3 is stored. If the creation date is before a predetermined date (for example, two years before the current date), the A message notifying the user that the traffic data is out of date, such as "Traffic data is out of date” or "Obtain new statistical traffic data", may be displayed on the display 2.
- a predetermined date for example, two years before the current date
- a message such as “power to use statistical traffic data” may be displayed, and selection of use or non-use of statistical traffic data may be received via input device 5. Such processing may be performed when it is determined that the statistical traffic data is old. Then, when it is selected not to use the statistical traffic data, the route searching unit 42 calculates the travel time included in the map data instead of the statistical traffic data in the route search, the estimated travel time, and the estimated arrival time calculation processing. You may use the link length, etc.
- the server may be connected to a server of a center that distributes the updated statistical traffic data via a network and downloaded.
- a server of a center that distributes the updated statistical traffic data via a network and downloaded.
- the weather information is obtained, and the statistical traffic corresponding to the obtained weather type is obtained.
- Use information the present invention is not limited thereto, and the statistical traffic information corresponding to the weather and the type of day may be used assuming that the weather is one of the weathers (for example, assuming that it is sunny).
- statistical information 3224 is registered in statistical traffic data 320 for each type of collected weather.
- the statistical traffic data 320 may be one in which the weather collection conditions are omitted!
- the present invention can be applied to navigation devices other than in-vehicle navigation devices.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/586,356 US7890258B2 (en) | 2004-01-16 | 2004-12-24 | Route search method for navigation device |
DE112004002635T DE112004002635T5 (de) | 2004-01-16 | 2004-12-24 | Routensuchverfahren für ein Navigationsgerät |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004009038A JP2005201793A (ja) | 2004-01-16 | 2004-01-16 | ナビゲーション装置の経路探索方法 |
JP2004-009038 | 2004-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005068940A1 true WO2005068940A1 (ja) | 2005-07-28 |
Family
ID=34792259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/019309 WO2005068940A1 (ja) | 2004-01-16 | 2004-12-24 | ナビゲーション装置の経路探索方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7890258B2 (ja) |
JP (1) | JP2005201793A (ja) |
CN (1) | CN100582671C (ja) |
DE (1) | DE112004002635T5 (ja) |
WO (1) | WO2005068940A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7908081B2 (en) * | 2006-03-30 | 2011-03-15 | Xanavi Informatics Corporation | Navigation apparatus, navigation system and route search method |
CN101162150B (zh) * | 2006-11-30 | 2012-03-21 | 厦门雅迅网络股份有限公司 | 一种联网车载导航设备中使用分幅数据搜寻跨市跨省路径的计算方法 |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7299206B2 (en) * | 2000-11-30 | 2007-11-20 | Ebay Inc. | Method and system to implement seller authorized buying privileges within a network-based shopping facility |
JP4734072B2 (ja) * | 2005-09-29 | 2011-07-27 | アイシン・エィ・ダブリュ株式会社 | ナビゲーション装置、走行案内方法及びコンピュータプログラム |
US7739040B2 (en) * | 2006-06-30 | 2010-06-15 | Microsoft Corporation | Computation of travel routes, durations, and plans over multiple contexts |
US20090171562A1 (en) * | 2006-07-06 | 2009-07-02 | Yasuyuki Shimada | Navigation System |
JP2008275565A (ja) * | 2007-05-07 | 2008-11-13 | Toyota Motor Corp | ナビゲーション装置 |
TW200905169A (en) * | 2007-07-24 | 2009-02-01 | Mitac Int Corp | Method of showing navigation information according to recalculated navigational route |
US8290699B2 (en) * | 2007-09-28 | 2012-10-16 | Clarion Co., Ltd. | System and method for geographic interpolation of traffic data |
DE602007004500D1 (de) * | 2007-10-19 | 2010-03-11 | Fiat Ricerche | System zur dynamischen Navigation für ein Fahrzeug |
JP5315353B2 (ja) * | 2007-10-26 | 2013-10-16 | トムトム インターナショナル ベスローテン フエンノートシャップ | 位置決定データを処理する方法、位置決定データを処理するように構成された機械、及び記憶媒体 |
DE102007060590A1 (de) * | 2007-12-13 | 2009-06-18 | Deutsche Telekom Ag | Verfahren zur Auswahl einer Route für eine dynamische Navigation von Individualverkehr |
JP5205950B2 (ja) * | 2007-12-19 | 2013-06-05 | アイシン・エィ・ダブリュ株式会社 | 合流地点決定システム、合流地点決定方法、合流地点決定プログラム |
WO2009121299A1 (en) | 2008-04-01 | 2009-10-08 | Decarta Inc. | Point of interest search along a route |
US20090265091A1 (en) * | 2008-04-16 | 2009-10-22 | Xanavi Informatics Corporation | Method and apparatus utilizing both statistical and real time data for a vehicle navigation system |
CN101261136B (zh) * | 2008-04-25 | 2012-11-28 | 浙江大学 | 一种基于移动导航系统的路径搜索方法 |
CN102245458B (zh) * | 2008-12-12 | 2015-01-28 | 株式会社纳维泰 | 路径检索系统、路径检索服务器及路径检索方法 |
US8352175B2 (en) * | 2008-12-17 | 2013-01-08 | International Business Machines Corporation | Generating optimal itineraries based on network connectivity |
WO2010074668A1 (en) * | 2008-12-22 | 2010-07-01 | Tele Atlas North America, Inc. | Methods, devices and map databases for green routing |
JP5266094B2 (ja) * | 2009-02-26 | 2013-08-21 | 株式会社トヨタマップマスター | ナビゲーション装置及び交通制御システム |
AU2009343389B2 (en) * | 2009-04-01 | 2015-10-29 | Uber Technologies, Inc. | Point of interest search along a route with return |
US9109909B2 (en) | 2009-07-09 | 2015-08-18 | Tomtom International B.V. | Navigation devices |
ES2525825T3 (es) | 2009-07-09 | 2014-12-30 | Tomtom International B.V. | Dispositivo de navegación y método para crear datos para acelerar la búsqueda de una ruta |
US8634984B2 (en) * | 2009-09-29 | 2014-01-21 | Clarion Co., Ltd. | Navigation system |
JP5410905B2 (ja) * | 2009-09-29 | 2014-02-05 | クラリオン株式会社 | ナビゲーション装置 |
TW201118722A (en) * | 2009-11-27 | 2011-06-01 | Inst Information Industry | Process apparatus, data scheduling method, and computer program product thereof for a data schedule |
CN102128631B (zh) * | 2010-01-14 | 2013-09-25 | 歌乐株式会社 | 路径搜索方法、导航服务器和导航仪 |
JP5024641B2 (ja) * | 2010-03-16 | 2012-09-12 | アイシン・エィ・ダブリュ株式会社 | ナビゲーション装置 |
US8990017B2 (en) | 2010-04-23 | 2015-03-24 | Tomtom International B.V. | Navigation devices and methods carried out thereon |
GB201018815D0 (en) | 2010-11-08 | 2010-12-22 | Tomtom Int Bv | High-definition weather for improved routing and navigation systems |
WO2013069060A1 (ja) * | 2011-11-10 | 2013-05-16 | 三菱電機株式会社 | ナビゲーション装置および方法 |
DE102012200192A1 (de) * | 2012-01-09 | 2013-07-11 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben eines Fahrzeugs |
JP5741478B2 (ja) * | 2012-02-17 | 2015-07-01 | 株式会社デンソー | 道路情報提供装置 |
US9983017B2 (en) | 2012-04-06 | 2018-05-29 | Lg Electronics Inc. | Route calculating method, route acquisition method or terminal for same |
WO2014049399A1 (en) * | 2012-09-28 | 2014-04-03 | Google Inc | Determining a route |
US8762036B2 (en) * | 2012-11-15 | 2014-06-24 | Mitsubishi Electric Research Laboratories, Inc. | Method for predicting travel times using autoregressive models |
CN103900589A (zh) * | 2012-12-25 | 2014-07-02 | 上海博泰悦臻电子设备制造有限公司 | 导航系统多条航线路况显示方法及装置 |
CN105513400B (zh) * | 2015-12-03 | 2017-12-08 | 四川长虹电器股份有限公司 | 动态规划出行路径的方法 |
KR101865729B1 (ko) * | 2016-06-23 | 2018-06-08 | 현대자동차 주식회사 | 전기자동차 경로 안내 시스템 및 그 방법 |
US11493354B2 (en) * | 2020-04-13 | 2022-11-08 | At&T Intellectual Property I, L.P. | Policy based navigation control |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001241960A (ja) * | 2001-01-26 | 2001-09-07 | Mitsubishi Electric Corp | 車載用ナビゲーション装置 |
JP2003177024A (ja) * | 2001-12-11 | 2003-06-27 | Kenwood Corp | 車載用ナビゲーション装置 |
JP2003214868A (ja) * | 2002-01-17 | 2003-07-30 | Aisin Aw Co Ltd | ナビゲーションシステム及び経路探索方法のプログラム |
JP2004301677A (ja) * | 2003-03-31 | 2004-10-28 | Xanavi Informatics Corp | ナビゲーション装置の経路探索方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2673403B2 (ja) * | 1992-06-23 | 1997-11-05 | 本田技研工業株式会社 | 経路探索装置 |
JPH0981894A (ja) | 1995-09-12 | 1997-03-28 | Toshiba Corp | 車両用ナビゲーション装置 |
JP3491867B2 (ja) | 1996-11-13 | 2004-01-26 | 松下電器産業株式会社 | 経路選出方法およびシステム |
JPH10300495A (ja) | 1997-04-25 | 1998-11-13 | Alpine Electron Inc | 車載用ナビゲーション装置 |
JPH11311533A (ja) * | 1998-04-28 | 1999-11-09 | Xanavi Informatics Corp | 経路探索装置 |
DE19904909C2 (de) * | 1999-02-06 | 2003-10-30 | Daimler Chrysler Ag | Verfahren und Vorrichtung zur Bereitstellung von Verkehrsinformationen |
US6285950B1 (en) * | 1999-05-13 | 2001-09-04 | Alpine Electronics, Inc. | Vehicle navigation system |
US6256579B1 (en) * | 1999-07-13 | 2001-07-03 | Alpine Electronics, Inc. | Vehicle navigation system with road link re-costing |
US6490519B1 (en) * | 1999-09-27 | 2002-12-03 | Decell, Inc. | Traffic monitoring system and methods for traffic monitoring and route guidance useful therewith |
US6826472B1 (en) * | 1999-12-10 | 2004-11-30 | Tele Atlas North America, Inc. | Method and apparatus to generate driving guides |
JP3719640B2 (ja) * | 1999-12-21 | 2005-11-24 | 松下電器産業株式会社 | 経路選出方法およびシステム並びに記録媒体 |
US7050904B2 (en) * | 2000-02-22 | 2006-05-23 | Pointserve, Inc. | Data formats and usage for massive point-to-point route calculation |
US6615130B2 (en) * | 2000-03-17 | 2003-09-02 | Makor Issues And Rights Ltd. | Real time vehicle guidance and traffic forecasting system |
US6480783B1 (en) * | 2000-03-17 | 2002-11-12 | Makor Issues And Rights Ltd. | Real time vehicle guidance and forecasting system under traffic jam conditions |
JP2002169914A (ja) * | 2000-11-30 | 2002-06-14 | Toyota Motor Corp | 経路案内装置及び方法 |
US6732048B2 (en) * | 2001-04-02 | 2004-05-04 | Maptuit Corporation | Alternate routes generation |
EP1258706A2 (en) * | 2001-05-15 | 2002-11-20 | Matsushita Electric Industrial Co., Ltd. | Navigation system |
US6560532B2 (en) * | 2001-05-25 | 2003-05-06 | Regents Of The University Of California, The | Method and system for electronically determining dynamic traffic information |
US7983837B2 (en) * | 2003-01-10 | 2011-07-19 | Hitachi, Ltd. | Display method of navi-server and navigation |
US20050267651A1 (en) * | 2004-01-15 | 2005-12-01 | Guillermo Arango | System and method for knowledge-based emergency response |
-
2004
- 2004-01-16 JP JP2004009038A patent/JP2005201793A/ja active Pending
- 2004-12-24 CN CN200480040511A patent/CN100582671C/zh active Active
- 2004-12-24 DE DE112004002635T patent/DE112004002635T5/de not_active Ceased
- 2004-12-24 US US10/586,356 patent/US7890258B2/en active Active
- 2004-12-24 WO PCT/JP2004/019309 patent/WO2005068940A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001241960A (ja) * | 2001-01-26 | 2001-09-07 | Mitsubishi Electric Corp | 車載用ナビゲーション装置 |
JP2003177024A (ja) * | 2001-12-11 | 2003-06-27 | Kenwood Corp | 車載用ナビゲーション装置 |
JP2003214868A (ja) * | 2002-01-17 | 2003-07-30 | Aisin Aw Co Ltd | ナビゲーションシステム及び経路探索方法のプログラム |
JP2004301677A (ja) * | 2003-03-31 | 2004-10-28 | Xanavi Informatics Corp | ナビゲーション装置の経路探索方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7908081B2 (en) * | 2006-03-30 | 2011-03-15 | Xanavi Informatics Corporation | Navigation apparatus, navigation system and route search method |
CN101162150B (zh) * | 2006-11-30 | 2012-03-21 | 厦门雅迅网络股份有限公司 | 一种联网车载导航设备中使用分幅数据搜寻跨市跨省路径的计算方法 |
Also Published As
Publication number | Publication date |
---|---|
CN100582671C (zh) | 2010-01-20 |
JP2005201793A (ja) | 2005-07-28 |
US7890258B2 (en) | 2011-02-15 |
DE112004002635T5 (de) | 2008-03-06 |
CN1906463A (zh) | 2007-01-31 |
US20070162222A1 (en) | 2007-07-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2005068940A1 (ja) | ナビゲーション装置の経路探索方法 | |
JP4255007B2 (ja) | ナビゲーション装置、およびその旅行時間算出方法 | |
US7725254B2 (en) | Navigation device used for a route search | |
JP4255028B2 (ja) | ナビゲーション装置、サーバ装置の交通情報送信方法 | |
US8855930B2 (en) | Method of generating a route | |
JP4374242B2 (ja) | ナビゲーション装置およびコンピュータプログラム。 | |
JP4791726B2 (ja) | ナビゲーション装置の交通情報表示方法 | |
JP4956493B2 (ja) | ナビゲーション装置、およびその交通情報表示方法 | |
JP4263007B2 (ja) | ナビゲーション装置の経路探索方法 | |
JP2006047246A (ja) | ナビゲーション装置の経路探索方法 | |
KR20070019675A (ko) | 네비게이션 장치의 경로 탐색 방법 | |
JP2004347448A (ja) | ナビゲーション装置の経路探索方法 | |
JP4409965B2 (ja) | ナビゲーション装置と、その経路探索方法 | |
JP4724208B2 (ja) | ナビゲーション装置、およびその交通情報表示方法 | |
JP2007218923A (ja) | ナビゲーション装置の経路探索方法 | |
JP2007218924A (ja) | ナビゲーション装置の経路探索方法 | |
JP4263058B2 (ja) | ナビゲーション装置、その経路探索方法 | |
JP2003042787A (ja) | ナビゲーションシステム及びナビゲーションプログラム | |
JP4746884B2 (ja) | ナビゲーション装置 | |
JP2009063424A (ja) | ナビゲーション装置、および、日差し回避ルート探索方法 | |
JP2006275766A (ja) | ナビゲーション装置 | |
JP4335654B2 (ja) | ナビゲーション装置、およびナビゲーション装置の経路探索方法 | |
JP4369693B2 (ja) | ナビゲーション装置、および交通情報表示方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480040511.0 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1120040026350 Country of ref document: DE Ref document number: 1020067014205 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007162222 Country of ref document: US Ref document number: 10586356 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 1020067014205 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 10586356 Country of ref document: US |
|
RET | De translation (de og part 6b) |
Ref document number: 112004002635 Country of ref document: DE Date of ref document: 20080306 Kind code of ref document: P |