WO2008001620A1 - dispositif de navigation, procédé de navigation et programme informatique - Google Patents

dispositif de navigation, procédé de navigation et programme informatique Download PDF

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Publication number
WO2008001620A1
WO2008001620A1 PCT/JP2007/062016 JP2007062016W WO2008001620A1 WO 2008001620 A1 WO2008001620 A1 WO 2008001620A1 JP 2007062016 W JP2007062016 W JP 2007062016W WO 2008001620 A1 WO2008001620 A1 WO 2008001620A1
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WO
WIPO (PCT)
Prior art keywords
guidance
request
information
data
automatic
Prior art date
Application number
PCT/JP2007/062016
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English (en)
Japanese (ja)
Inventor
Ryotaro Iwami
Nobuyuki Nakano
Original Assignee
Panasonic Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corporation filed Critical Panasonic Corporation
Publication of WO2008001620A1 publication Critical patent/WO2008001620A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/3655—Timing of guidance instructions

Definitions

  • the present invention relates to a navigation apparatus that guides a route to a destination, and more specifically to a navigation apparatus that performs guidance guidance by voice.
  • a car navigation system that calculates a recommended route to a destination and guides the vehicle to the destination while performing guidance guidance has become widespread.
  • Such a car navigation system displays a map centered on the current position on the screen during guidance and displays an enlarged view of the intersection when turning an intersection, and also provides voice guidance. Do. By giving guidance by voice, the driver does not need to check the screen, so even if he is driving, he / she can drive without removing his / her front line of sight.
  • voice guidance in a conventional car navigation system has a fixed timing to be performed.
  • voice guidance is provided at positions 700m, 300m, and 100m before the intersection to be guided.
  • a voice guidance is given saying "It is about 700m away, at the intersection.”
  • the timing and frequency of voice guidance, guidance contents, etc. without considering the type of intersections such as three- and four-way intersections, the number of lanes to the intersection, lane width, traffic volume, traffic conditions such as traffic conditions, etc. Therefore, the conventional car navigation system has been unable to provide useful information to the driver.
  • the repeat function is a function that guides the same guidance once again, and does not provide real-time information. For this reason, even with a car navigation system equipped with a repeat function, the driver could not obtain useful information.
  • a navigation device has been proposed that enables voice output of route guidance information immediately after a driver's request (for example, Patent Document 1).
  • Navigation of Patent Document 1 The Chillon device can provide the driver with real-time guidance information including accurate remaining distance information to the intersection to be guided in response to the driver's request.
  • Patent Document 1 Japanese Patent Laid-Open No. 5-99678
  • the navigation device of Patent Document 1 provides the remaining distance information to the intersection in response to the driver's request, but only the remaining distance information is always useful information for the driver. Not necessarily.
  • Information that the driver wants to make a turn at an intersection includes, for example, information about the name of the intersection and landmarks around the intersection, the presence or absence of traffic lights, which direction to turn, the name of the road ahead of the turn, the intersection The shape and the number of branches are considered.
  • the navigation device disclosed in Patent Document 1 has not been able to provide appropriate information to the driver.
  • providing all the information that the driver would like would cause the driver one to feel bothered or to have a side effect of consciousness by listening to voice guidance for a long time.
  • an object of the present invention is made to solve the conventional problems, and a navigation apparatus capable of guiding information of contents required by a user in a guidance plan at an appropriate timing. Is to provide.
  • the object of the present invention is achieved by a navigation device having the following configuration.
  • the navigation apparatus includes a position detection unit that detects the current position, a map data acquisition unit that can acquire map data, and a route acquisition unit that acquires a route from the departure point to the destination based on the map data.
  • An input unit that receives a guidance guidance request from a user, automatic guidance data for automatically performing guidance guidance on a guidance target point on a route acquired by a route acquisition unit, and a request from a user
  • a guide data generator that generates request guidance data for performing guidance guidance, an automatic guidance unit that performs automatic guidance using automatic guidance data, and request guidance data when there is a request for user force guidance guidance
  • a request guidance unit that performs request guidance using the guidance data generation unit.
  • the guidance guidance for the guidance target point is classified automatically into automatic guidance information that should be guided automatically and request guidance information that should be guided according to the user's request.
  • Automatic guidance information and request guidance information The automatic guide data and request guide data are respectively generated from the above.
  • FIG. 1 is a block diagram showing a configuration of a navigation device according to a first embodiment.
  • FIG. 2 is a flowchart showing a main processing procedure in the navigation device according to the first embodiment.
  • FIG. 3 is a flowchart showing guide data generation processing in the first embodiment.
  • FIG. 4 is a flowchart showing an automatic guidance data generation process in the first embodiment.
  • FIG. 5 is an example of an automatic guidance timing table stored in the data storage unit included in the first embodiment.
  • FIG. 6 is an example of automatic guidance data generated in the first embodiment.
  • FIG. 7 (a) is a flowchart showing the main processing of request guide data generation
  • FIG. 7 (b) is a flow chart showing data generation processing related to distance in request guide data.
  • FIG. 8 is an example of a request guidance distance information basic table stored in the data storage unit included in the first embodiment.
  • FIG. 9 is an example of request guide distance data created in the first embodiment.
  • Fig. 10 is a diagram showing an example of acquiring additional information.
  • Fig. 10 (a) shows a guide sign indicating the course in each direction
  • Fig. 10 (b) shows an expressway.
  • Fig. 10 (c) shows a case where there is a traffic light and a gas station at the guidance target point, and there is a traffic light at the intersection before the guidance target point.
  • Figure 11 shows an example of request guidance distance data including additional information.
  • Figure 11 (a) shows the request guidance distance data when the road type is a general road intersection
  • Figure 11 (b) shows the road type.
  • Fig. 11 (c) shows an example of request guidance distance data when the road type is a general road intersection.
  • FIG. 12 is a flowchart showing the guidance and guidance process in the first embodiment.
  • FIG. 13 is a block diagram showing a configuration of the navigation apparatus according to the second embodiment.
  • FIG. 14 is an example of a basic timing table stored in the data storage unit of the second embodiment.
  • FIG. 15 is an example of a condition classification table showing the relationship between the type of guidance target spot and each condition classified in the second embodiment.
  • FIG. 16 is an example of automatic guidance data and request guidance data in the second embodiment.
  • FIG. 17 is an example of a condition classification table in which each condition is individually selected and classified in the second embodiment.
  • FIG. 18 is an example of a basic timing table that differs for each type of guidance target point in the second embodiment.
  • FIG. 19 is an example of a table in which guidance information and importance are associated in the second embodiment.
  • FIG. 20 is a diagram showing an example of classifying guidance information according to criterion (5) in the second embodiment.
  • FIG. 1 is a block diagram showing a configuration of the navigation device according to the first embodiment.
  • the navigation device according to the present embodiment provides the driver with information on points to be guided (hereinafter referred to as guidance target points) such as intersections existing on the route, and the starting point is also used to reach the destination. Guide the route.
  • the navigation apparatus includes an input unit 1, a position detection unit 2, a data storage unit 3, an arithmetic processing unit 4, and an output unit 5.
  • the arithmetic processing unit 4 includes a guide data generating unit 41 and a guidance guide unit 42.
  • the input unit 1 accepts input of instructions from the driver, for example, a remote controller, a microphone for collecting voice, a mobile phone equipped with an IrDA (infrared communication) function, a personal digital assistant (PDA), etc. .
  • the driver performs various settings such as destination setting via the input unit 1.
  • Information and operation requests input to the input unit 1 are output to the arithmetic processing unit 4.
  • the input unit 1 includes switch A and switch B for the driver to request the start of guidance.
  • the switch A and the switch B may be separately provided at a position where a driver such as a handle can be easily operated. When the driver presses switch A, guidance guidance regarding the distance to the guidance target point is performed.
  • the position detection unit 2 detects the current position, speed, direction, and current time of the vehicle, and includes, for example, a speed sensor, a gyro sensor, and a GPS receiver.
  • the position detector 2 may be a combination of two or more of these sensors and receivers.
  • the speed sensor detects the moving speed of the vehicle.
  • the gyro sensor detects the traveling direction of the vehicle.
  • the GPS receiver receives radio waves from multiple satellites and demodulates the received radio waves to measure the absolute position of the receiver.
  • Information detected by the speed sensor, the gyro sensor, and the GPS receiver is output to the arithmetic processing unit 4 and is used by the arithmetic processing unit 4 for a map matching process described later.
  • the data storage unit 3 is used to provide guidance in accordance with map data, various data used for route search, an automatic guidance timing table 31 used for automatically performing planning, and a driver's request.
  • the request guide distance information basic table 32 is stored, for example, CD-ROM, DVD-ROM, HDD (node disk drive), memory, and the like.
  • the map data includes road network data used for route search, guidance, map matching, etc. in the arithmetic processing unit 4, and background data used for map display.
  • the road network data mainly includes node data indicating intersections and link data indicating roads connecting the nodes.
  • the map data and various types of data may be downloaded as needed by the center facility through the communication unit (not shown) of the mobile phone and stored in the data storage unit 3.
  • the arithmetic processing unit 4 performs various processes such as route search, guidance guidance, and map matching, and includes a guidance data generation unit 41 and a guidance guidance unit 42.
  • the guidance data generation unit 41 further includes an automatic guidance generation unit 411 and a request guidance generation unit 412.
  • the route search processing is processing for obtaining a recommended route to the destination set by the driver via the current position force input unit 1 of the vehicle.
  • the guidance guidance process first, the guidance data generation unit 41 generates information necessary for guidance guidance, and then the guidance guidance unit 42 presents guidance information to the destination based on the current position of the vehicle to the driver. It is processing.
  • the map matching process is a process of correcting the position when the current position on the map of the vehicle is out of force on the road based on the information on the current position detected by the position detection unit 2.
  • the output unit 5 outputs information such as a map, the current position of the vehicle, and guidance information. Play equipment and speakers.
  • the display device visually displays the above information, and the speaker provides the above information by voice or sound information.
  • FIG. 2 is a flowchart showing a main processing procedure in the navigation apparatus.
  • the destination is set. Specifically, the driver inputs information necessary for operating the input unit 1 to specify the destination (for example, the destination zip code and address, telephone number) or displayed on the display device. Specify the destination from the map. The arithmetic processing unit 4 sets a destination necessary for the route search based on the operation information input to the input unit 1.
  • a recommended route to the destination is acquired. That is, the arithmetic processing unit 4 searches for a route to the destination set in step S101 using the current position detected by the position detection unit 2 as a starting point.
  • a route search algorithm for example, the well-known Dijkstra method is used.
  • the recommended route to be acquired is composed of data power related to nodes and links.
  • the starting point (departure point) of the route is not limited to the current position of the vehicle, but may be a point input by the driver via the input unit 1.
  • the driver may be able to set conditions in advance for route search. For example, before executing the route search, the driver may operate the input unit 1 to specify the road type, such as whether to give priority to general roads or to expressways (or toll roads). In such a case, the arithmetic processing unit 4 searches for a route that satisfies the conditions of the road type specified by the driver.
  • the arithmetic processing unit 4 may be configured such that a driver who can obtain a plurality of routes from the current position to the destination can select one of the plurality of routes as a recommended route.
  • the current position of the vehicle is calculated in accordance with the running of the vehicle in step S103. Specifically, the arithmetic processing unit 4 performs map matching using the moving speed and traveling direction of the vehicle detected by the position detection unit 2, the absolute position of the vehicle, and the map data stored in the data storage unit 3. The current position of the vehicle is calculated.
  • step S104 the guidance data required for the guidance guidance according to the traveling state of the vehicle.
  • the guidance data specifies information on the guidance target points that exist on the route from the current position of the vehicle to the destination, such as intersections and junctions, as well as the direction of travel at the planned target points and the guidance target points. Information, road names, and information on when to provide these information. The guidance data generation process will be described later.
  • step S105 guidance guidance processing is performed.
  • the guidance and guidance unit 42 outputs voice guidance information at the timing for guidance based on the positional relationship between the current position of the vehicle and the guidance target point and the instruction from the driver 1 input to the input unit 1.
  • the “guidance guidance” in this embodiment includes “automatic guidance” and “retrieval guidance”.
  • the automatic guidance is guidance automatically performed by the device. For example, guidance is automatically performed when the distance from the current position detected by the position detection unit 2 to the guidance target point is equal to or less than a predetermined distance.
  • the request guidance is an arbitrary guidance given when requested by the driver. Therefore, depending on the current position of the vehicle and whether or not there is a request from the driver, the guidance and guidance unit 42 performs automatic guidance or request guidance using the guidance data created in step S104, and is represented by voice. Output sound information to the output unit 5.
  • step S 106 it is determined by the arithmetic processing unit 4 whether or not the vehicle has arrived at the destination. If it is determined that the vehicle has arrived at the destination, in step S107, the arithmetic processing unit 4 provides the driver with information notifying that the vehicle has arrived at the destination, and the processing ends. On the other hand, if it is determined that the destination has not been reached, the process returns to step S103 again. Therefore, the processes in steps S103 to S105 are repeated until the destination is reached.
  • FIG. 3 is a flowchart showing guidance data generation processing.
  • the guidance data is data used for guiding guidance, and in this embodiment, the guidance data is composed of automatic guidance data used for automatic guidance and request guidance data used for request guidance.
  • the guidance data generation unit 41 determines whether or not the guidance data within a certain distance range from the current position is generated. For example Whether the current position force is generated or not within 10 km of the recommended route is determined.
  • the reason for determining whether or not the guidance data within a certain range has been generated is that the guidance is not started until the vehicle approaches even if the guidance data far from the current position is held, so the processing burden This is to reduce memory consumption and make effective use of storage capacity. Therefore, the guidance data generating unit 41 sequentially creates necessary guidance data as the vehicle heads for the destination on the recommended route. Of course, all the guidance data to the destination may be generated at once. Further, if there is a sufficient storage capacity such as a memory, all of the guidance data required to arrive at the destination may be generated after the route search process in step S102 of FIG. .
  • a guidance target point is extracted in step S202. Specifically, intersections that should be changed on the recommended route based on the angle of the link connected to the node, etc., are extracted as target sites. Note that the guidance target points to be extracted are not limited to intersections, and include, for example, junctions such as Y-junctions, expressway entrances, and expressway junctions.
  • the process proceeds to step S203.
  • step S203 it is determined whether there is a guidance target point for which guidance data should be generated among the guidance target points extracted in step S202. If there is a guidance target point for which guidance data is to be generated, automatic guidance data is generated (step S204), and then request guidance data is generated (step S205). On the other hand, if there is no guidance target point for which guidance data is to be generated, the guidance data generation process is terminated. As described above, the processing of step S201 to step S205 is repeated until the guidance data of all the guidance target points existing within a certain distance range from the vehicle position is generated.
  • FIG. 4 is a flowchart showing the automatic guidance data generation process.
  • the automatic guidance is guidance automatically performed according to the distance to the current position force guidance target point.
  • Conventional navigation devices have a problem that the driver feels bothered and easily looks aside because the automatic guidance is performed with predetermined contents and timing regardless of the driver's intention. Therefore, the navigation device of this embodiment is The system automatically guides only the minimum necessary and important information from a wide variety of information about the point to be guided, and guides other information according to the driver's request.
  • step S301 for the guidance target point extracted in step S202 of Fig. 3, the information about the link to enter and the link to exit is obtained by accessing the data storage unit 3.
  • the link information includes, for example, the road type, road width, number of lanes, road name, and the like.
  • the road types of the approach road and the escape road with respect to the guidance target point can be known, so it is possible to determine the road type such as whether the guidance target point is an intersection of a general road or an entrance of an expressway.
  • step S302 node information related to the guidance target point is obtained by accessing the data storage unit 3.
  • the node information includes, for example, the absolute position and name of the guidance target point, traffic restriction information such as right turn prohibition. It should be noted that information regarding the road type or the like may be recorded in advance in the node information of the data storage unit 3 . In such a case, the node type information is accessed and the type of the guidance target point is acquired by the process of step S302.
  • the automatic guidance timing table 31 stored in the data storage unit 3 is referred to acquire timing information corresponding to the road type.
  • FIG. 5 is an example of the automatic guidance timing table 31 stored in the data storage unit 3. As shown in FIG. 5, the automatic guidance timing table 31 stores, for each road type (point pattern), the relationship between the timing and the phrase or file to be guided at that timing.
  • condition 1 the timing of the 10m point before the intersection is associated with the phrase “I am in the direction of ⁇ ”. Therefore, during guidance, when the vehicle reaches 10m before the intersection, the phrase “to the right” will be given by voice. The point 10m before the intersection is almost immediately before the intersection, so the driver will hear the voice guidance just before entering the intersection and turning, and can confirm the position of the intersection and the direction to turn.
  • Condition 2 is associated with the timing of the 10m to 8Om point before the intersection and the playback of the music file.
  • Condition 3 correlates the timing of the point 100m before the intersection with phrases such as “This is the next direction” and “This is the next direction”. Therefore, in the case of guidance, if the name of an intersection exists and the vehicle reaches 100m before the intersection, for example, the phrase “Following Dainichi intersection to the right” will be guided.
  • the automatic guidance timing table 31 associates the phrase or file to be guided according to the distance to the guidance target point with the timing.
  • the power associated with the timing of 10m to 80m and the playback of one music file is not limited to this.
  • the section 10m to 80m before the intersection may be divided into two sections (10m to 40m section and 40m to 80m section).
  • a music file with a speed and tempo may be played in a section of 10m to 40m compared to a music file played in a section of 40m to 80m.
  • other point patterns such as general road intersections (two lanes on one side), general road intersections (two lanes or more on one side), highway entrances, highway branches, highway exits, etc. are associated with each other and stored in the automatic guidance timing table.
  • condition 4 in order to make it possible to change the course more surely on ordinary roads and expressways with two lanes on one side, condition 4 was established, the timing at the 500m to 2000m point before the intersection, and ⁇ the direction is 0 direction for a while '' or Match phrases such as “Please come to the lane soon”.
  • step S303 the automatic guidance timing table 31 is referred to, and a phrase (file) to be guided and information on timing are acquired according to the spot pattern where the host vehicle runs.
  • step S304 When the timing information is acquired in step 303, the processing in step S304 generates automatic in-house data. That is, the automatic guidance generation unit 411 is based on the point node information acquired in step S302 and the timing information acquired in step S303. Thus, automatic guidance data, which is specific data necessary for guidance, is generated. Note that the automatic guidance generation unit 411 may generate automatic guidance data by using the timing values of the conditions shown in the automatic guidance timing table 31 as they are, or the intersections and roads acquired in steps S301 and S302. The timing numerical value may be changed according to the information.
  • FIG. 6 is an example of automatic guidance data generated in step S304. Here, as an example, we are driving on an ordinary road with two lanes on one side and turning right at the intersection named Dainichi.
  • the Dainichi intersection was divided into the fact that the acquired node information power intersection scale was large, so the timing numerical value was changed to associate the timing to be guided with the phrase or file to be guided at that timing.
  • Create automatic guidance data That is, as shown in FIG. 6, the automatic guidance generation unit 411 associates the timing of the 20m point before the Dainichi intersection with “right” as the guidance phrase.
  • the file name “Music 1. wav” is associated with the timing of the intersection 20m to 80m and the music file to be played.
  • step S304 automatic guidance data in which a phrase or file to be guided is associated with a timing is created.
  • the automatic guidance data generated in step S304 need not satisfy all the conditions recorded in the automatic guidance timing table 31. For example, playback of music files in condition 2 may be omitted. In addition, since the guidance of condition 1 is obvious if the vehicle enters the lane, guidance according to condition 1 may be omitted when it is helpful. Furthermore, when the road type is a general road intersection (one lane on one side), automatic on-site data with condition 4 added may be generated. In addition, the timing value may be changed according to each intersection (for example, when the size of the intersection or the right / left turn lane is long).
  • step S302 in the case of an intersection having a complicated structure (for example, in the case of a seven-way road), appropriate timing information is recorded in advance in the node information of the data storage unit 3, and the processing in step S302 is performed.
  • node information and timing information may be obtained to generate automatic guidance data.
  • all the timing information power recorded in the node information is generated Good.
  • Fig. 7 (a) is a flowchart showing the main processing for request guidance data generation.
  • request guidance is a plan to be implemented when there is a request from the driver.
  • the information guided by the request guidance includes information related to the traveling direction at the intersection and information related to landmarks existing around the intersection.
  • step S401 data related to the distance is generated, and in step S402, information related to the mark is generated.
  • FIG. 7B is a flowchart showing a data generation process related to distance in the request guide data.
  • step S501 node information related to the guidance target point is acquired.
  • the node information it is possible to determine whether the guidance target point is an intersection of a general road or an entrance of a highway, and the type of the road (point pattern). Since the node information is acquired in step S302 of the automatic guidance data generation process, the node information may be acquired in the same procedure as step S302 or the power to access the data held at that time. .
  • FIG. 8 is an example of the request guide distance information basic table 32 stored in the data storage unit 3.
  • the request guidance distance information basic table 32 stores the timing and the phrase to be guided in association with each road type (point pattern). For example, if the point pattern (road type) is a general road, the timing before the intersection Om ⁇ : The timing of the LOOm point and the phrase “This is the direction of the future” are associated. Similarly, the distance (timing) to the intersection is associated with the phrase to be guided.
  • step S503 basic information of request guidance distance data is created.
  • the request guidance generation unit 412 creates request guidance distance data, which is specific data necessary for guidance guidance, based on the timing information acquired in step S502. For example, if the road type is a general road intersection and the intersection name is “Dainichi intersection” In this case, request guidance distance data as shown in FIG. 9 is created. In Fig.
  • the request guidance distance data is from Om before the intersection:
  • the timing at the LOOm point is associated with the phrase “This is right ahead”, and the timing and phrase “100m to 300m before the intersection” Correspond to "the intersection is to the right.”
  • map 300m to 700m before the intersection with the phrase "The Dainichi Intersection is going to the right for a while” and the point 700m or more before the intersection and the phrase Is associated with.
  • the request guide distance data may be generated by using the timing numerical values of the conditions shown in the request guide distance information basic table 32 as they are or by changing the timing numerical values according to the intersection and road. May be.
  • appropriate timing information may be recorded in advance in the node information of the data storage unit 3 and generated using the timing information.
  • additional information related to the guidance target point is acquired in step S504.
  • the additional information is, for example, in-house information about signs at intersections, signs at expressway entrances, traffic lights, and landmarks around the intersection.
  • the additional information that can be used is not information that exists at all guidance target points, but different information for each guidance target point.
  • Figures 10 (a) to 10 (c) show examples of acquiring additional information. For example, as shown in Fig. 10 (a), if there is a guide sign indicating the direction of each direction at 300m before the intersection, additional information is the timing of the point 300m to 400m before the intersection and the phrase ⁇ Osaka about 300m away Get additional information in association with Also, for example, as shown in Fig.
  • step S504 additional information corresponding to each guidance target point is acquired.
  • the timing for guiding each phrase is an example, and each timing may be set to a distance section in which the driver can see the guidance signs and landmarks.
  • step S505 the information acquired in step S504 is added to the request guide distance data created in step S503.
  • Figures 11 (a) to 11 (c) show an example of request guidance distance data including additional information.
  • Fig. 11 ( a ) shows the request guidance distance data when the road type is a general road intersection, and corresponds to Fig. 10 (a).
  • Figure 11 (b) shows the request guidance distance data when the road type is highway entrance, and corresponds to Figure 10 (b).
  • Fig. 11 (c) is an example of request guidance distance data when the road type is a general road intersection, and corresponds to Fig. 10 (c).
  • Fig. 11 (c) is an example of request guidance distance data when the road type is a general road intersection, and corresponds to Fig. 10 (c).
  • the additional information is guided with priority over the basic information so that it can be divided compared with the basic information of the request guidance distance data shown in Fig. 9. Set at the top of the request guide distance data. Similarly for the request guide distance data in Figs. 11 (b) and 11 (c), the additional information is set at a higher rank than the request guide distance data.
  • the request guidance distance data is created, the data generation process regarding the distance is terminated.
  • the data related to the distance is generated from the request guide data
  • the data related to the mark is generated in step S402.
  • Examples of information that can be used to identify the intersection include the name of the intersection, the number of branches at the intersection, the shape of the intersection, the size of the intersection, the name of the branch road, the road width of the branch road 'number of lanes, the presence of traffic lights, Possible types include presence / absence of pedestrian bridge, presence / absence of pedestrian crossing, presence / absence of landmark.
  • the navigation device classifies the information serving as a mark into the following three items (1) to (3), and the request guidance can be configured to guide one item of information among the three items. .
  • item (1) is classified into information on intersection shape (number of branches) and size
  • item (2) is information on branch direction and supplementary information (road width, etc.).
  • request guidance generating unit 412 creates request guidance landmark data in which the landmark node and link for specifying the intersection are associated with the phrase to be guided.
  • request guide landmark data is generated by the process of step S402, the request guide data generation process ends.
  • step S105 When guidance data including automatic guidance data and request guidance data is generated, guidance guidance is performed in step S105 in FIG.
  • FIG. 12 is a flowchart showing the guidance process.
  • step S601 based on the current position of the vehicle and the automatic guidance timing table 31, it is determined whether or not the force is the timing for performing the automatic guidance. If the timing is automatic guidance, a corresponding phrase or file (automatic guidance information) is output in step S602. For example, if your vehicle is 100m before the intersection of the general road, the guidance and guidance unit 42 will output the phrase “This is the direction of the future” based on the automatic guidance data shown in Figure 6. To output.
  • step S601 if it is determined in step S601 that it is not the timing of automatic guidance, it is determined whether or not there is a request from the driver.
  • the guidance and guidance unit 42 refers to the request guidance distance data in step S604, and causes the output unit 5 to output a phrase at a predetermined timing according to the distance from the current position of the vehicle to the guidance target point.
  • step S603 if it is determined in step S603 that the driver A has not pressed switch A !, then in step S605, it is determined whether or not switch B has been pressed.
  • the guidance guide unit 42 refers to the request guide mark data in step S606, and causes the output unit 5 to output a phrase corresponding to the mark at a predetermined timing.
  • the guidance guide unit 42 refers to the request guide mark data in step S606, and causes the output unit 5 to output a phrase corresponding to the mark at a predetermined timing.
  • Each time switch B is pressed information contained in item (1), item (2), and item (3) is guided in turn. Specifically, when the driver presses switch B once, the information contained in item (1) (for example, the phrase “This is a big intersection of five differences”) is voice-guided.
  • the information contained in item (2) for example, the phrase “slight left, enter a narrow road” is voice-guided.
  • the information contained in item (3) (for example, the phrase “There is a combination near the intersection with a traffic light”) is voice-guided.
  • the point pattern is an expressway entrance
  • the name of the expressway, the name of the expressway entrance, the name of the direction, the name of the exit of the expressway, and the required fee may be provided. .
  • the processes in steps S601 to S606 are performed at each guidance target point until the vehicle arrives at the departure point and destination.
  • switch B If switch B is pressed while switch A is pressed by the driver and the request guidance regarding distance is being performed, the request guidance regarding distance is interrupted and request request regarding the mark is performed. May be.
  • the request guidance for the distance may be implemented by interrupting the return guidance for the landmark. .
  • a configuration may be adopted in which no other request guidance is accepted until the current request guidance is completed.
  • switch A is further pressed while switch A is pressed by the driver and the request guidance for distance is being executed, the request guidance currently being executed is interrupted, Request guidance regarding distance may be started again.
  • the driver When switch B is pressed while switch B is pressed and switch B is pressed, the current request information is interrupted and the request information related to the mark is re-executed. May be. Alternatively, even if the same switch is pressed during request guidance, another guidance may not be provided until the current guidance is finished.
  • the navigation device provides information on the guidance target point existing on the route to the destination according to the information to be automatically guided and the driver's request. It is classified into information to be guided. As a result, the driver can listen to the guidance at the discretion of the driver. In addition, since the minimum necessary information about the guidance target point is automatically guided according to the distance to the guidance target point, the driver can only hear important information and pass through the guidance target point. Absent.
  • the navigation device further converts the information to be guided according to the driver's request into information on the traveling direction at the guidance target point and information on a mark for identifying the guidance target point. Classify. As a result, the driver can select information necessary for his / her own judgment.
  • the navigation device further classifies the information related to the landmark for specifying the guidance target point into a plurality of items according to the type of information. As a result, the driver can easily obtain the necessary minimum information.
  • each timing table is merely examples, and the present invention is not limited to these.
  • the driver may be configured to be able to change each phrase and timing via the input unit.
  • the navigation device classifies the information on the mark into three items
  • Information on landmarks may be classified into 3 or more items or 3 or less items according to the characteristics of the guidance target point.
  • every time switch B is pressed the order in which the voice guidance is performed in the order of item (1), item (2), and item (3) is changed appropriately. May be.
  • switches (1), (2), and (3) may be associated with each switch by further preparing switches.
  • FIG. 13 is a block diagram showing a configuration of the navigation apparatus according to the second embodiment.
  • the navigation device according to the present embodiment has almost the same configuration as the navigation device of the first embodiment, but for classifying the guidance information into information used for automatic guidance and information used for request guidance. It differs in that there is a standard. The following description focuses on the differences from the first embodiment.
  • the data storage unit 3 stores a timing basic table 33
  • the guidance data generation unit 41 generates automatic guidance data and request guidance data based on the timing basic table 33.
  • FIG. 14 is an example of the timing basic table 33 stored in the data storage unit 3.
  • the relationship between the timing and the phrase or file to be guided at that timing is stored in conditions 1-6.
  • the guidance data generating unit 41 classifies the conditions 1 to 6 into conditions used for creating automatic guidance data and conditions used for creating request guidance data according to a predetermined standard, and creates each guidance data.
  • the following references (1) to (10) are provided as an example.
  • each condition in the basic timing table 33 is as follows: Standard (1): Type of guidance target point, Standard (2): Number of lanes of approach road, Standard (3): Type of approach road, standard (4): Target of guidance Distance to point, standard (5): Importance of guidance information, standard (6): Driver characteristics, standard (7): Time zone, standard (8): Weather and visibility, standard (9): Vehicle type (car High), Standard (10): Classified based on traffic conditions, traffic volume, etc.
  • Standard (1) Type of guidance target point
  • Standard (2) Number of lanes of approach road
  • Standard (3) Type of approach road
  • standard (5) Importance of guidance information
  • standard (6) Driver characteristics
  • standard (9): Vehicle type (car High) Standard (10): Classified based on traffic conditions, traffic volume, etc.
  • the driver can select a desired standard via the input unit 1. The details of each standard are explained below.
  • each condition is classified into a condition used for automatic guidance and a condition used for request guidance according to the type of the point to be guided.
  • the types of guidance target points are, for example, “general road crossroads”, “general road three-way”, “general road branch”, “general road merge”, “general road Y-junction”, “highway” ⁇ Road entrance '', ⁇ Highway exit '', ⁇ Highway bifurcation (Jiyang Xiyong) '', ⁇ Highway confluence '', ⁇ General road five-way '', ⁇ General road six-way '', ⁇ General road No. 7 fork "etc.
  • condition classification table showing the relationship between the types of guidance target points and the conditions classified.
  • conditions 1 and 2 are classified as automatic guidance
  • conditions 3 to 6 are classified as request guidance.
  • the guidance target point of the type “seven-way crossing of general roads” is a complex intersection, it is necessary to automatically guide the front side of the guidance target point. Therefore, among the conditions in the basic timing table, conditions 1 to 4 are classified as automatic guidance, and conditions 5 to 6 are classified as request guidance.
  • the type of guidance is “Highway Exit”, it will run at high speed, so it is necessary to automatically consider the foreground power.
  • conditions 1 to 6 are classified as automatic guidance.
  • the automatic guidance generation unit 411 Based on such a condition classification table, the automatic guidance generation unit 411 generates automatic guidance data, and the request guidance generation unit 412 generates request guidance data.
  • FIG. 16 is an example of the automatic guidance data and the request guidance data that are generated, and shows the case where the type of the guidance target point is “cross road of general road”. As shown in FIG. 15, in the case of “general road crossing”, conditions 1 and 2 are classified as automatic guidance, and conditions 3 to 6 are classified as request guidance. Therefore, the automatic guidance generation unit 411 plays the timing of 10m before the intersection and the phrase “Is right” (condition 1), the timing of 10m to 80m before the intersection and the playback of the file “music.wav”.
  • Automatic guidance data that associates (Condition 2) with each other is generated.
  • the request draft generation unit 412 has a timing of 100m before the intersection and the phrase “It is right ahead” (Condition 3), and a timing of 100m to 300m before the intersection and a phrase “It is approximately 300m ahead”.
  • Condition 4 the timing 300m to 700m before the intersection and the phrase "Right to the right about 700m” (Condition 5), the timing 700m to 1000m before the intersection and the phrase "Right to the right about lkm" ( Request guide data that associates conditions 6) is generated. Therefore, on the crossroads of general roads, request guidance starts according to the driver's request at 100m or more before the crossing according to the generated automatic guidance data and request guidance data, and automatic guidance is opened from the position 80m before the crossing. Start.
  • condition classification table shown in FIG. 15 the conditions in the basic timing table are not limited to the forces that are continuously classified into automatic guidance and request guidance.
  • each condition may be individually selected and classified as shown in the condition classification table of FIG. Specifically, when the type of guidance target point is “seven-way general road”, the automatic plan Classify condition 1, condition 2 and condition 4 in the request, and classify condition 3, condition 5 and condition 6 in the request information.
  • condition classification table and each piece of guidance data may be generated using a different timing basic table for each type of guidance target point.
  • automatic guidance data and request guidance data may be generated by combining the condition classification table in FIG. 15 and the condition classification table in FIG.
  • each condition in the basic timing table is classified into a condition used for automatic guidance and a condition used for request guidance according to the number of road lanes entering the guidance target point. .
  • Each condition in the basic timing table is classified according to the number of lanes on one side of the approach road, such as ⁇ 1 lane '', ⁇ 2 lanes '', ⁇ 3 lanes '', ⁇ 4 lanes '', ⁇ 5 lanes or more '', respectively.
  • a condition classification table is created (not shown). For example, in the case of one lane on one side, there is no need to change the course until just before the guidance target point, so among the conditions in the basic timing table in Fig. 14, Condition 1 and Condition 2 are classified as automatic guidance. ⁇ 6 are classified in the proposed request. Thereafter, as in the case of standard (1), automatic guidance data and request guidance data are generated based on the condition classification table.
  • each condition of the basic timing table is classified into a condition used for automatic guidance and a condition used for request guidance according to the type of road entering the guidance target point.
  • the types of roads that enter here are, for example, “highway”, “capital highway”, “toll road”, “national road”, “prefectural road”, “city road”, “general road”, and the like.
  • Each condition in the basic timing table is classified according to the type of approach road. For example, on the approach road type “highway”, since the vehicle is traveling at high speed, it is necessary to start automatic guidance before the guidance target point. Therefore, among the conditions in the basic timing table, conditions 1 to 5 are classified into automatic guidance, and a condition classification table in which condition 6 is classified as request guidance is generated (not shown).
  • each condition of the basic timing table is classified into a condition used for automatic guidance and a condition used for request guidance according to the distance to the guidance target point.
  • the guidance information for guiding guidance is classified into guidance information used for automatic guidance and guidance information used for request guidance.
  • Data storage In section 3 points are set according to the eager guidance information (phrase), and a table in which the guidance information and the points are associated with each other is stored as shown in FIG. 19, for example.
  • the data storage unit 3 stores a coefficient and a threshold value for each guidance target point.
  • the arithmetic processing unit 4 calculates the importance by multiplying the point and the coefficient, determines that the in-house information whose importance exceeds the threshold is high, and classifies the powerful guidance information as automatic guidance. On the other hand, guidance information whose importance does not exceed the threshold is determined to be of low importance and classified as request guidance.
  • the data storage unit 3 stores in advance a table indicating the relationship between guide information (phrases) and points, an intersection coefficient of 0.8, and a threshold value 300 at the intersection. At this intersection, if the importance, which is a value obtained by multiplying the point and the coefficient, is 300 or more, the guidance information is classified in the automatic plan, and if it is 300 or less, it is classified as request guidance. Therefore, in Fig. 20, the arithmetic processing unit 4 classifies the guidance information exceeding the threshold of 300 "this direction is in the direction of 0" and "the intersection is in the direction of 0" as automatic guidance, and classifies the remaining guidance information as request guidance. . In this way, since guidance information is classified according to importance, only the minimum necessary and important information is automatically guided at each guidance target point, reducing driver's missed hearing. And the driver will not be bothered.
  • Criterion (6) classifies the guidance information into guidance information used for automatic guidance and guidance information used for request guidance according to the characteristics of the driver.
  • driver characteristics include gender, years of driving experience, beginners, paper drivers, and weekend drivers.
  • the points shown in FIG. 19 are changed according to these characteristics, and the guidance information is classified by the same processing as in the criterion (5).
  • the guidance information may be classified by changing the coefficient or threshold value only by changing the points according to the characteristics of the driver. For example, for drivers with abundant driving experience, only the guidance information related to the direction of travel is automatically guided by setting a high point of information regarding the direction of travel at the guidance target point. On the other hand, information on intersection names and landmarks is automatically guided to beginner drivers by setting a high information point to identify the guidance target point. In this way, the content of the guidance information and the timing to present it are changed according to the characteristics of the driver. Is not bothersome.
  • the guidance information is classified into guidance information used for automatic guidance and guidance information used for request guidance according to the time zone.
  • the time zone includes, for example, “early morning”, “morning”, “daytime”, “afternoon”, “evening”, “night”, “midnight”, and the like. Points are changed according to these time zones, and guidance information is classified by the same processing as in criterion (5).
  • the guide information may be classified by changing, for example, a coefficient or a threshold value, by simply changing the point according to the time zone. For example, a high information point for specifying a guidance target point is set in a time zone with good visibility such as daytime.
  • the guidance information is classified into guidance information used for automatic guidance and guidance information used in the request plan according to the weather. Since the visible distance changes depending on the weather, points, coefficients, and thresholds are changed according to the weather such as ⁇ Sunny '', ⁇ Rain '', ⁇ Cloudy '', ⁇ Fog '', ⁇ Snow '', ⁇ Thunder '' etc. Guidance information is classified by the same processing as (5). As a result, the information in the automatic plan is set according to the weather.
  • the guidance information is classified into guidance information used for automatic guidance and guidance information used in the request plan. Since the visible distance changes depending on the vehicle height, the points, coefficients, and threshold values are changed according to the vehicle height, and the guidance information is classified by the same processing as the standard (5). Thereby, the automatically guided information is set according to the vehicle height.
  • guidance information is classified into guidance information used for automatic guidance and guidance information used for request guidance according to surrounding traffic conditions.
  • the information to be guided varies, so points, coefficients, and threshold values are changed according to the surrounding traffic conditions, and guidance is provided in the same way as in standard (5).
  • Information is classified.
  • the automatically guided information is set according to traffic conditions.
  • the traffic situation may be acquired via a network, for example, or the surrounding situation may be photographed with an in-vehicle camera and the traffic volume may be recognized by image processing.
  • the navigation device automatically guides guide information. Criteria are set to categorize information that should be guided and information that should be guided by the request of the driver. Therefore, the navigation device according to the present embodiment can guide only the minimum and important information out of various types of information related to the guidance target point, which makes the driver feel bothersome. Or a side effect of consciousness.
  • the information to be automatically guided or requested is set according to the guidance target point, the road, the surrounding environment, the driver, etc., so that the driver can acquire appropriate information, High convenience and navigation device can be provided.
  • the navigation device of the present embodiment may not only classify the guidance information based on one criterion, but may classify the guidance information by combining two or more criteria.
  • the criteria (1) to (10) have been described as an example.
  • the guide information is not limited to this, and may be classified according to other criteria.
  • the number of conditions in the timing basic table is not limited to six. The number of conditions may be increased or decreased if not necessary.
  • the guide information is classified into two types, that is, information that should be automatically guided and information that should be guided to request, but the information is not limited to this and may be classified into two or more.
  • the guidance information may be classified into two or more such as “automatic guidance”, “request guidance 1”, “request guidance 2”, “request guidance 3”. In this case, the user may select a desired request guide via the input unit.
  • each component can be arbitrarily combined.
  • a system example in which an arithmetic processing unit, an output unit, and other configurations are physically separated Various combinations may be considered.
  • the automatic guidance that is automatically guided by the device is performed based on the distance to the guidance target point, but is not limited thereto.
  • automatic guidance may be performed according to time, or the guidance may be automatically performed based on the traveling speed of the vehicle 1.
  • the present invention relates to a car navigation device, a personal computer, and a mobile phone that require a navigation device that eliminates missed listening and can easily obtain desired information.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Navigation (AREA)
  • Instructional Devices (AREA)
  • Traffic Control Systems (AREA)

Abstract

L'invention concerne un dispositif de navigation susceptible de fournir au conducteur des informations avec une chronologie appropriée, lesdites informations ayant des contenus demandés par le conducteur pendant la direction et le guidage. Le dispositif de navigation a une section d'entrée (1) pour recevoir une demande de l'utilisateur pour la direction et le guidage, une section de création de données de guidage (41) pour créer à la fois des données de guidage automatique pour réaliser automatiquement la direction et le guidage d'un point de guidage cible et des données de guidage de demande pour réaliser la direction et le guidage selon une demande de l'utilisateur, une section de guidage automatique (42) pour réaliser le guidage automatique à l'aide des données de guidage automatique, et une section de guidage de demande (42) pour réaliser, lors de la réception d'une demande de l'utilisateur pour la direction et le guidage, le guidage de demande à l'aide des données de guidage de demande. La section de création de données de guidage (41) classifie des informations de guidage pour diriger et guider un trajet dans des informations de guidage automatique autrement dit pour réaliser automatiquement la direction et le guidage d'un point de guidage cible sur la base d'au moins une ou plusieurs normes prédéterminées et également dans des informations de guidage de demande autrement dit pour réaliser le guidage selon une demande de l'utilisateur. La section de création de données de guidage (41) crée les données de guidage automatique et les données de guidage de demande sur la base des informations de guidage automatique et des informations de guidage de demande.
PCT/JP2007/062016 2006-06-30 2007-06-14 dispositif de navigation, procédé de navigation et programme informatique WO2008001620A1 (fr)

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JP6521247B2 (ja) * 2015-07-30 2019-05-29 アルパイン株式会社 車載装置及び該車載装置における処理方法
CN110361015B (zh) * 2018-09-30 2021-04-02 长城汽车股份有限公司 道路特征点提取方法及系统
WO2023073935A1 (fr) * 2021-10-29 2023-05-04 パイオニア株式会社 Dispositif de sortie audio, procédé de sortie audio, programme et support de stockage

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