JP2016169976A - Guidance manner determination system, guidance terminal, guidance manner determination device, guidance manner determination method, and guidance manner determination program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guidance manner determination system, a guidance terminal, a guidance manner determination device, a guidance manner determination method, and a guidance manner determination program that can increase the convenience of users for guidance of intersections.SOLUTION: A guidance manner determination system 100 includes an intersection determination unit 162 determining whether or not an intersection on a travelling route is difficult to pass along the travelling route based on intersection pattern information specifying the intersection pattern, and a guidance manner determination unit 163 determining a guidance manner for guiding an intersection on the travelling route based on the determination result obtained by the determination unit 162.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a guidance mode determination system, a guidance terminal, a guidance mode determination device, a guidance mode determination method, and a guidance mode determination program.

  2. Description of the Related Art Conventionally, as one technique for guiding a travel route of a vehicle, a technique for displaying an enlarged view of an intersection existing on the travel route has been proposed. In this technique, the user presets whether or not to display an enlarged view of an intersection, and the enlarged view of the intersection is displayed based on this setting. As a setting method by such a user, a method of collectively setting all intersections as targets, and a method of individually setting each intersection as targets (for example, see Patent Document 1) have been proposed.

JP-A-9-269238

  However, in the method of setting all intersections collectively, it is impossible to display an enlarged view of only a part of all the intersections. Moreover, in the method of setting individually for each of the intersections as in the technique described in Patent Document 1, the setting work is troublesome, and in particular, for the intersection to be guided When the number increases, the labor of the work increases, and the convenience of the user for the guidance of the intersection may be reduced.

  This invention is made in view of the above, Comprising: The guidance aspect determination system, a guidance terminal, a guidance aspect determination apparatus, and a guidance aspect determination method which can improve the convenience of the user about the guidance of an intersection And it aims at providing the guidance mode determination program.

  In order to solve the above-described problems and achieve the object, the guidance mode determination system according to the present invention moves based on intersection shape information specifying an intersection shape or movement history information specifying a user's movement history. A determination means for performing an intersection determination, which is a determination as to whether or not an intersection on the route is an intersection that is difficult to pass along the travel route, and based on a determination result of the determination means, Guidance mode determining means for determining a guidance mode for guiding an intersection.

  In addition, the guidance terminal according to the present invention is a determination as to whether or not an intersection on a moving route is an intersection that is difficult to pass along the moving route, based on intersection shape information that specifies the shape of the intersection. A determination unit configured to determine an intersection; and a guidance mode determination unit configured to determine a guidance mode for guiding an intersection on the travel route based on a determination result of the determination unit.

  Further, the guidance mode determination device according to the present invention determines whether or not the intersection on the movement route is an intersection that is difficult to pass along the movement route based on the movement history information that specifies the movement history of the user. A determination unit that performs an intersection determination, a guidance mode determination unit that determines a guidance mode for guiding an intersection on the moving route based on a determination result of the determination unit, and a guidance mode determination unit Transmission means for transmitting information for the guidance terminal to perform guidance based on the guidance mode determined in this manner.

  Further, in the guidance mode determination method according to the present invention, the determination unit determines that the intersection on the movement route is the movement route based on the intersection shape information that specifies the intersection shape or the movement history information that specifies the movement history of the user. A determination step for performing an intersection determination, which is a determination as to whether or not the intersection is difficult to pass along, and a guidance mode determination unit determines an intersection on the moving route based on the determination result in the determination step. And a guidance mode determination step for determining a guidance mode for guiding.

  In addition, the guidance mode determination program according to the present invention allows a computer to make an intersection on a moving route as the moving route based on intersection shape information that specifies an intersection shape or movement history information that specifies a user's movement history. A determination unit that performs an intersection determination that is a determination as to whether or not the intersection is difficult to pass along, and a guidance mode for guiding an intersection on the moving route based on a determination result of the determination unit. It is made to function as the guidance mode determination means to determine.

  According to the guidance mode determination system, the guidance terminal, the guidance mode determination device, the guidance mode determination method, and the guidance mode determination program according to the present invention, based on the determination result of the intersection determination, for guiding the intersection on the moving route Since the guidance mode is determined, for example, it is possible to determine the guidance mode without manually setting the guidance mode for each intersection, and it is possible to improve the convenience of the user regarding the guidance of the intersection. .

It is a block diagram which illustrates the vehicle equipment concerning Embodiment 1 of the present invention. It is a flowchart of a guidance process. It is a figure which shows the example of a display of an intersection enlarged view. 6 is a block diagram illustrating a center device and an in-vehicle device according to a second embodiment. FIG. It is the figure which illustrated movement history information. It is a flowchart of a guidance process.

  Hereinafter, embodiments of a guidance mode determination system, a guidance terminal, a guidance mode determination device, a guidance mode determination method, and a guidance mode determination program according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiments.

  The guidance mode determination system according to the present invention performs intersection determination, which is determination of whether or not an intersection on a moving route is an intersection that is difficult to pass along the moving route, and is based on the determination result of the intersection determination. And a system for determining a guidance mode for guiding an intersection. In this guidance mode determination system, information used for performing intersection determination includes intersection shape information for specifying an intersection shape and movement history information for specifying a user's movement history. Moreover, in this guidance mode determination system, an in-vehicle device, a terminal device, and a center device are mentioned as an apparatus for performing intersection determination and a device for determining a guidance mode.

  Here, the “guidance mode” is a mode for guiding an intersection on the travel route, and specifically includes a concept of a guidance display mode, a guidance voice mode, and the like. The “guidance display mode” is a mode of a display image for guiding an intersection, and specifically includes the presence / absence of display of an enlarged view of an intersection, highlighting of an intersection on a map, and the like. The “intersection enlarged view” is a view for guiding a travel route at the intersection, and specifically, is an enlarged view of the shape of the intersection on the map so as not to cause misidentification of the user. The “guidance voice mode” is an output voice mode for guiding an intersection, and specifically includes a concept of whether or not a predetermined guidance voice is output, volume adjustment of the output voice, and the like.

  Further, the “in-vehicle device” is a device mounted on a vehicle, and specifically includes a concept including an in-vehicle navigation device. The “terminal device” is a device on which a predetermined computer is mounted, and specifically includes a concept including a smartphone and a portable navigation device. The “center device” is a device that transmits information to the in-vehicle device or the terminal device, and specifically includes a server device that includes a predetermined computer.

  And in Embodiment 1 shown below, "the apparatus which performs intersection determination" and "the apparatus which determines a guidance aspect" are vehicle-mounted apparatuses, and "information used in order to perform intersection determination" is intersection shape information. A case where “guidance mode” is a mode of guidance display (specifically, whether or not an enlarged view of an intersection is displayed) will be described. In the second embodiment, “the device for performing the intersection determination” and “the device for determining the guidance mode” are the center device, “the information used for performing the intersection determination” is the movement history information, and “the guidance” A case where “mode” is a mode of guidance display (specifically, whether or not an enlarged intersection view is displayed) will be described. Then, cases other than those described in the first and second embodiments will be described in a modification.

(Embodiment 1)
First, the first embodiment will be described. In the first embodiment, a case will be described in which the in-vehicle device guides an intersection after determining an intersection and determining a guidance mode.

  In the following description, a vehicle equipped with an in-vehicle device (a vehicle on which a user who operates the in-vehicle device is boarded) will be referred to as “own vehicle”. The “own vehicle” is a concept including, for example, a four-wheeled vehicle, a two-wheeled vehicle, a bicycle, and the like. Hereinafter, a case where the own vehicle is a four-wheeled vehicle will be described. Moreover, since the function as a vehicle-mounted device in the guidance mode determination system can be obtained by the same configuration as that of a known vehicle-mounted navigation device except for a special portion, the description thereof will be omitted.

(Constitution)
First, the guidance mode determination system 100 according to the present embodiment will be described. The guidance mode determination system 100 includes an in-vehicle device 1. FIG. 1 is a block diagram illustrating an in-vehicle device according to an embodiment of the invention. As shown in FIG. 1, the in-vehicle device 1 is a guidance terminal, and generally includes a touch panel 11, a display 12, a speaker 13, a current position detection unit 14, a data recording unit 15, and a control unit 16.

(Configuration-touch panel)
The touch panel 11 is an operation unit that receives various operation inputs from the user when pressed by a user's finger or the like. The touch panel 11 is formed to be transparent or translucent, and is provided on the front surface of the display 12 so as to overlap the display surface of the display 12. As this touch panel 11, for example, a publicly known touch panel provided with operation position detecting means by a resistance film method or a capacitance method can be used.

(Configuration-Display)
The display 12 is a display unit that displays various images based on the control of the control unit 16 described later, and in particular, map information stored in a map information database 151 (hereinafter referred to as “DB”) described later. It is a display means which displays a map based on etc. The specific configuration of the display 12 is arbitrary. For example, a known flat panel display such as a liquid crystal display or an organic EL display can be used.

(Configuration-Speaker)
The speaker 13 is sound output means for outputting information by sound based on the control of the control unit 16 described later. The specific form of the sound output from the speaker 13 is arbitrary, and it is possible to output a synthesized sound generated as necessary or a sound recorded in advance.

(Configuration-Current position detector)
The current position detection unit 14 is a current position detection unit that detects the current position of the in-vehicle device 1. The current position detection unit 14 includes a GPS or a geomagnetic sensor (both not shown), and detects the current position (coordinates), direction, and the like of the in-vehicle device 1 by a known method.

(Configuration-Data recording part)
The data recording unit 15 is a recording unit that records a program necessary for the operation of the in-vehicle device 1 and various data, and is configured using, for example, a hard disk (not shown) as an external recording device. However, any other recording medium including a magnetic recording medium such as a magnetic disk or an optical recording medium such as a DVD or a Blu-ray disk can be used instead of or together with the hard disk (see the second embodiment). The same applies to the data recording unit 25).

  The data recording unit 15 includes a map information DB 151.

  The map information DB 151 is map information storage means for storing map information. Here, the “map information” is information for presenting a map to the user, and specifically, is necessary for specifying various positions including roads, road intersections, road structures, facilities, etc. For example, node data (for example, node ID, coordinates, etc.) related to each node set on the road, and link data (for example, link ID, link name, connection node ID) related to each link set on the road , Road coordinates, road type (eg narrow streets, general roads, major national roads, and highways), road width, number of lanes, etc.), feature data (eg traffic lights, road signs, guardrails, facilities, etc.), topographic data Etc. are configured. Such map information in the map information DB 151 is recorded by being input via a predetermined recording medium, or is recorded by receiving information distributed from a map distribution center (not shown).

(Configuration-control unit)
The control unit 16 is a control unit that controls the in-vehicle device 1, and specifically, a CPU, various programs that are interpreted and executed on the CPU (a basic control program such as an OS, and a specific function that is activated on the OS And an internal memory such as a RAM for storing the program and various data. In particular, the guidance mode determination program according to the embodiment is substantially installed in the in-vehicle device 1 via an arbitrary recording medium or network, thereby substantially configuring each unit of the control unit 16 (control in the second embodiment). The same applies to the parts 26 and 36).

  The control unit 16 includes a route generation unit 161, a determination unit 162, a guidance mode determination unit 163, and a guidance unit 164 in terms of functions.

  The route generation unit 161 is a route generation unit that generates a travel route from the departure point to the destination using a known generation method based on the map information in the map information DB 151. Here, the “departure place” is a point where the vehicle starts to move, and is set, for example, by receiving a user's predetermined operation via the touch panel 11 or the current position detected by the current position detection unit 14. The position is set. Further, the “destination” is a point that is the purpose of movement of the vehicle, and is set, for example, by receiving a user's predetermined operation via the touch panel 11. Further, the “travel route” is a travel route for the user to travel, and specifically, a route for the host vehicle to travel.

  Further, the determination unit 162 performs an intersection determination that is a determination as to whether or not an intersection on the traveling route is an intersection that is difficult to pass along the traveling route based on the intersection shape information specifying the intersection shape. It is a determination means. Here, “an intersection where it is difficult for an intersection on the travel route to pass along the travel route” is an intersection where the vehicle is likely to deviate from the travel route due to a user's misconception. Accordingly, it will be referred to as a “difficult intersection”. The “intersection shape information” is information that specifies the shape of the intersection, and specifically, information that specifies the width of the intersection road and the number of intersections of the road at the intersection. The “intersection road width” is a road width of an intersection road which is a road intersecting at an intersection, and is specifically determined for each road type. The road type that determines the width of the intersecting road is arbitrarily set.For example, according to a predetermined law, from the road type with a narrow road width toward the road type with a wide road width, A case where “narrow street”, “general road”, “main national road”, and “highway” are set as road types will be described below. The “number of road intersections at the intersection” is the number of roads near the intersection. Specifically, the number of intersection roads (for example, “3” in the case of a three-way road including a T-junction, 4 in the case of a four-way road including a crossroad) and the number of branch roads that are branches from the intersection road in the vicinity of the intersection. The “near the intersection” is a point within a predetermined range including the intersection, and a specific range is arbitrary. For example, a predetermined distance from the center of the intersection (for example, 30 meters or an intersection road) Within 3 times the width of).

  The guidance mode determination unit 163 is a guidance mode determination unit that determines a guidance mode for guiding an intersection on the travel route based on the determination result of the determination unit 162.

  The guide unit 164 is a guide unit that guides a travel route based on the determination result of the guide mode determination unit 163 and the like. The processing performed by each unit of the control unit 16 will be described later.

(processing)
Next, the guidance process performed by the vehicle-mounted apparatus 1 of the guidance mode determination system 100 comprised in this way is demonstrated. FIG. 2 is a flowchart of the guidance process (in the following description of each process, step is abbreviated as “S”). The guidance process is roughly a process of determining a guidance mode and guiding based on the determined guidance mode. The guidance process is started when the host vehicle travels along the travel route generated by the route generation unit 161 and the host vehicle enters the guide section, for example. I will explain from there. Here, the “guidance section” is a section that guides an intersection, and specifically, a section closer to the departure point than the intersection to be guided on the travel route (for example, a distance from the intersection is 5 to 30 meters). Etc.). In addition, the “intersection targeted for guidance” is an intersection targeted for guidance, and specifically, an intersection where the host vehicle passes next among all the intersections on the travel route.

  First, as shown in FIG. 2, in SA <b> 1, the guide unit 164 determines whether “display only difficult intersections” is set. Although this determination method is arbitrary, it can determine based on the setting content by a user, for example. As a specific example, as a setting button for performing “enlarged map display setting” on the touch panel 11 of the in-vehicle device 1, “display an enlarged intersection map”, “display only a difficult intersection”, and “enlarged map of an intersection” Three setting buttons “Do not display” are displayed. Among these, the setting button “display enlarged intersection map” is a means for setting to display the enlarged intersection map for all intersections regardless of whether or not it is a difficult intersection. The setting “display only difficult intersections” is a means for setting to display an enlarged intersection map only for difficult intersections (that is, not to display an enlarged intersection map for intersections other than difficult intersections). The setting of “not displaying the enlarged intersection map” is a means for setting that the enlarged intersection map is not displayed for all the intersections regardless of whether the intersection is a difficult intersection or not. When one of these three setting buttons is selected by the user via the touch panel 11, the setting corresponding to the selected setting button is performed. Based on the setting content, “only difficult intersection is displayed. "Is set or not is determined. Note that this user operation can be performed at an arbitrary point in time prior to the processing of SA1. If it is determined that “display only difficult intersections” is set (YES in SA1), the process proceeds to SA2. Also, when it is determined that “display only difficult intersections” is not set (that is, when it is determined that “display an enlarged intersection map” or “do not display an enlarged intersection map”) is set ( (NO in SA1), the process proceeds to SA4.

  Next, in SA2, the determination unit 162 acquires intersection shape information of the intersection to be guided. Specifically, based on the map information stored in the map information DB 151 and the travel route generated by the route generation unit 161, the road type of the exit road on the travel route at the intersection to be guided, the intersection to be guided The number of intersection roads and the number of branch roads at the guidance target intersection are identified, and the identification result is acquired as intersection shape information. Here, the “exit road on the travel route” is an exit road when the host vehicle travels along the travel route. The “exit road” is a road for exiting from the intersection, and specifically, a road that passes immediately after passing through the intersection. Use any method for the method of “specifying the type of exit road at the intersection to be guided”, the method of “specifying the number of intersection roads”, and the method of “specifying the number of branch roads”. However, for example, a known method of specifying using link data and node data can be used.

  Next, in SA3, the determination unit 162 determines whether the guidance target intersection is a difficult intersection based on the intersection shape information acquired in SA2. Specifically, the determination is made based on the number of intersection roads specified by the intersection shape information, the number of branch roads, and the road type of the exit road. When the number of intersection roads is “5” or more, or when the number of branch roads is “1” or more, or when the road type of the exit road is “narrow street”, the intersection to be guided Is determined to be a difficult intersection. Further, the number of intersection roads is less than “5”, the number of branch roads is less than “1” (that is, there is no branch road), and the road type of the exit road is “narrow street”. If it is other than (that is, “general road”, “main national road”, or “highway”), it is determined that the guidance target intersection is not a difficult intersection.

  Next, in SA4, the guidance mode determination unit 163 determines the guidance mode. Specifically, based on the determination results of SA1 and SA3, whether or not to display an enlarged intersection view is determined as a guidance mode. More specifically, if it is determined in SA1 that “display only difficult intersections” is set, and if it is determined in SA3 that the intersection to be guided is a difficult intersection, it is determined to display an enlarged view of the intersection. To do. If it is determined in SA1 that “Display only difficult intersections” is set, and if it is determined in SA3 that the intersection to be guided is not a difficult intersection, it is determined not to display an enlarged view of the intersection. If it is determined in SA1 that “display an enlarged intersection view” is set, it is determined to display an enlarged intersection view regardless of the processing in SA3. If it is determined in SA1 that “do not display an enlarged intersection map” is set, it is determined not to display an enlarged intersection map regardless of the processing in SA3.

  Next, in SA5, the guide unit 164 guides the travel route based on the guidance mode determined in SA4. Specifically, when it is determined in SA4 that an enlarged intersection map is to be displayed, guidance is provided by displaying the enlarged intersection map on the display 12 in addition to the normal guidance output. In addition, although arbitrary display can be used about the concrete display of the intersection enlarged view displayed on the display 12, it is good also as displaying the intersection enlarged view shown, for example in FIG. FIG. 3 is a diagram illustrating a display example of an enlarged intersection view. This intersection enlarged view includes an intersection image P1 that specifies the shape of the intersection, a host vehicle symbol P2 that specifies the position of the host vehicle, and a route symbol P3 that specifies the traveling direction on the travel route. The “normal guidance output” is guidance that is normally performed regardless of whether or not it is a difficult intersection. Specifically, the map image on which the travel route is displayed is displayed on the display 12, and This corresponds to outputting a voice for guiding the progress at the intersection (for example, turning right, turning left, or going straight) from the speaker 13. If it is determined in SA4 that the enlarged intersection map is not displayed, the intersection enlarged map is not displayed on the display 12 but is guided by the normal guidance output. Thereafter, the processes of SA1 to SA5 are similarly performed every time the own vehicle enters the guidance section until the own vehicle arrives at the destination.

(Effect of Embodiment 1)
As described above, according to the present embodiment, the guidance mode for guiding the intersection on the travel route is determined based on the determination result of the difficult intersection. For example, the guidance mode is manually set for each intersection. It is possible to determine the guidance mode without setting at, and to improve the convenience of the user regarding the guidance of the intersection.

  Further, since the difficult intersection is determined based on the width of the intersection road or the number of road intersections in the intersection shape information, for example, the determination accuracy of the difficult intersection determination can be improved, and the width of the intersection road or the road It is possible to provide appropriate guidance based on the number of intersections

  In addition, since the presence / absence of the enlarged view of the intersection is determined as the guidance mode, for example, the user can intuitively recognize the travel route related to the difficult intersection and call attention regarding the passage of the intersection. Can do.

(Embodiment 2)
Next, a second embodiment will be described. In the second embodiment, a case will be described in which the center device performs intersection determination and guidance mode determination, and the in-vehicle device guides the intersection based on the determination result. The configuration of the second embodiment is substantially the same as the configuration of the first embodiment unless otherwise specified, and the configuration substantially the same as the configuration of the first embodiment is the same as that used in the first embodiment. These symbols are attached as necessary, and the description thereof is omitted.

(Constitution)
First, the guidance mode determination system 200 according to the present embodiment will be described. The guidance mode determination system 200 includes a center device 2 and an in-vehicle device 3. FIG. 4 is a block diagram illustrating the center device and the in-vehicle device according to the embodiment of the invention.

(Configuration-Center device)
First, the configuration of the center device 2 will be described. As shown in FIG. 4, the center device 2 is a guidance mode determination device, and roughly includes a data recording unit 25, a control unit 26, and a communication unit 27.

(Configuration-Center device-Communication unit)
The communication unit 27 is a communication unit that performs communication with the in-vehicle device 3 via a network, and in particular, is a transmission unit that transmits information for guidance to the in-vehicle device 3. Although the specific type and configuration of the communication unit 27 are arbitrary, for example, a known mobile radio communication unit can be used.

(Configuration-Center device-Data recording unit)
The data recording unit 25 includes a map information DB 151 and a movement history information DB 252.

  The movement history information DB 252 is a movement history information storage unit that stores movement history information. Here, the “movement history information” is information for specifying the movement histories of a plurality of users. Specifically, the vehicle on which the user has boarded and traveled (for example, the host vehicle and other vehicles other than the host vehicle). This is information for identifying the travel history of the vehicle. FIG. 5 is a diagram illustrating movement history information. As shown in FIG. 5, the movement history information correlates the item “intersection”, the item “entrance road”, the item “exit road”, the item “passing rate”, and information corresponding to each item. Configured. Here, the information corresponding to the item “intersection” is information for identifying an intersection on the map, and specifically, information for identifying an intersection in the map corresponding to the map information stored in the map information DB 151. (In FIG. 5, this is the link ID of the link connected to the node at the intersection, such as “LID003, LID002, LID005, LID009”, etc.). Further, the information corresponding to the item “entrance road” is information for specifying the approach road at the intersection (in FIG. 5, the link ID, for example, “LID002”). Here, the “entrance road” is a road for entering the intersection, and specifically, a road that passes immediately before entering the intersection. The information corresponding to the item “exit road” is information for specifying the exit road at the intersection (in FIG. 5, the link ID, for example, “LID003”). Here, since “exit road” has been described in the first embodiment, the description thereof is omitted. Further, the information corresponding to the item “passing rate” is information for specifying the actual product of the intersection, specifically, information for specifying the passing rate for each combination of the approach road and the exit road (FIG. 5). Then, it is a percentage, for example, “97” or the like). Here, the “passing rate” is the ratio of the number of vehicles that have passed the intersection according to the travel route. Specifically, the number of vehicles that have passed the intersection (hereinafter referred to as passing vehicles) in a state where a predetermined setting has been made. Is the ratio of the number of vehicles (hereinafter referred to as normal passing vehicles) that have passed through the intersection along the traveling route of the passing vehicles. The “predetermined setting” is a setting for an in-vehicle device mounted on the vehicle, and specifically, a setting for guiding a travel route without displaying an enlarged intersection map. An arbitrary method can be used as a method for counting the “number of vehicles”. For example, a method for counting the total number of vehicles can be used. In the case of FIG. 5, for example, for the item “passing rate” = “97”, the intersection corresponding to “LID003, LID002, LID005, LID009” corresponds to “LID003” from the approach road corresponding to “LID002”. This corresponds to the case where there are 100 “passing vehicles” passing through the exit road and 97 “passing vehicles”. And about the movement history information of such movement history information DB252, center apparatus is set for every predetermined time (for example, 5 minutes, 10 minutes, etc.) for the setting of the in-vehicle device, the traveling route of the vehicle, and the traveling result of the vehicle. 2 is received from in-vehicle devices of a plurality of vehicles, and is recorded based on the received information.

(Configuration-Center device-Control unit)
The control unit 26 includes a route generation unit 261, a determination unit 262, and a guidance mode determination unit 263 in terms of functions. The route generation unit 261 is route generation means for generating a travel route in response to a route generation request to be described later. The determination unit 262 determines whether or not the intersection on the travel route is an intersection that is difficult to pass along the route based on the movement history information that specifies the user's movement history. Means. The guidance mode determination unit 263 is a guidance mode determination unit that determines a guidance mode for guiding an intersection on the travel route based on the determination result of the determination unit 262. The processing performed by each unit of the control unit 26 will be described later.

(Configuration-In-vehicle device)
Next, the configuration of the in-vehicle device 3 will be described. As shown in FIG. 4, the in-vehicle device 3 is a guidance terminal, and roughly includes a touch panel 11, a display 12, a speaker 13, a current position detection unit 14, a data recording unit 15, a control unit 36, and a communication unit 37. I have.

(Configuration-In-vehicle device-Communication unit)
The communication unit 37 is a communication unit that performs communication with the center device 2 via a network. The specific configuration is the same as the configuration of the communication unit 27.

(Configuration-In-vehicle device-Control unit)
The control unit 36 includes a guide unit 364 in terms of functional concept. The guide unit 364 is a guide unit that guides the travel route based on the determination result of the guide mode determination unit 163 of the center device 2. The processing performed by the guide unit 364 will be described later.

(processing)
Next, guidance processing executed by the center device 2 of the guidance mode determination system 200 configured as described above will be described. FIG. 6 is a flowchart of the guidance process. The guidance process is generally a process of generating a travel route, determining a guidance mode in the generated travel route, and transmitting information specifying the generated travel route and the determined guidance mode. And this guidance process is demonstrated from the place which the said process started, for example, starting when receiving the route production | generation request | requirement transmitted from the vehicle-mounted apparatus 3. FIG. Here, the “route generation request” is a request for generating a travel route, and specifically, for uniquely identifying the departure point, the destination, the enlarged map display setting specification information, and the in-vehicle device 3. The request includes the identification information (hereinafter, device ID). The “enlarged map display setting specifying information” is information for specifying the setting contents of the “enlarged map display setting” in the in-vehicle device 3. Specifically, the “enlarged map display setting display”, “intersection enlarged map display” This is information that specifies which of “not display” or “display only difficult intersections” is set. Here, the “enlarged map display setting” can be performed in the same manner as the “enlarged map display setting” in the first embodiment.

  First, as shown in FIG. 6, in SB1, the route generation unit 261 of the center device 2 generates a travel route. Specifically, the travel route from the departure point to the destination included in the received route generation request is generated using a known generation method based on the map information in the map information DB 151.

  Next, in SB2, the control unit 26 of the center apparatus 2 determines whether or not “display only difficult intersections” is set. Specifically, the determination is made based on the enlarged view display setting specifying information included in the received route generation request. If the enlarged map display setting specifying information specifies that “display only difficult intersections” is set, it is determined that “display only difficult intersections” is set (YES in SB2). ), The process proceeds to SB3. In addition, when the enlarged map display setting specifying information specifies that “display an enlarged intersection map” or “do not display an enlarged intersection map” is set, “display only difficult intersections” is set. If it is not determined (NO in SB2), the process proceeds to SB5.

  Next, in SB3, the determination unit 262 of the center device 2 acquires movement history information for all intersections on the travel route generated in SB1. Specifically, the passage rate corresponding to the combination of the approach road and the exit road on the travel route is acquired for all intersections as movement history information. Here, for example, the intersections corresponding to “LID003, LID002, LID005, LID009” (hereinafter referred to as the first intersection) and the intersections corresponding to “LID013, LID012, LID015, LID019” (hereinafter referred to as the second intersection) shown in FIG. (Intersection) is an intersection on the travel route, the approach road of the first intersection on the travel route corresponds to “LID002”, the exit road corresponds to “LID003”, and the second intersection on the travel route The following description will be made on the assumption that the approach road corresponds to “LID013” and the exit road corresponds to “LID015”. In this case, for example, the passage rate “97” of the first intersection and the passage rate “81” of the second intersection are acquired as the movement history information.

  Returning to FIG. 6, in SB4, the determination unit 262 of the center device 2 determines whether or not each intersection on the travel route is a difficult intersection based on the movement history information acquired in SB3. Judge about. Specifically, the determination is made based on whether or not the passage rate acquired as the movement history information is equal to or greater than a predetermined threshold. Here, the “predetermined threshold value” is a value for determining whether or not it is a difficult intersection, specifically, a value set based on the user's guidance needs. Here, “95” is set. And when the passage rate in an intersection is more than a predetermined threshold, it judges with an intersection not being a difficult intersection. Further, when the passing rate at the intersection is less than a predetermined threshold, it is determined that the intersection is a difficult intersection. Here, for example, the first intersection with a passing rate “97” is determined not to be a difficult intersection, and the second intersection with a passing rate “81” is determined to be a difficult intersection.

  Next, in SB5, the guidance mode determination unit 263 of the center device 2 determines the guidance mode of each intersection on the travel route for all intersections on the travel route. Specifically, based on the enlarged map display setting specification information used in SB2 and the determination result of SB4, whether or not to display the intersection enlarged map is determined as a guidance mode. When the enlarged map display setting specifying information of SB2 specifies that “display only difficult intersections” is set, for the intersections determined to be difficult intersections in SB4, For an intersection that is determined to be displayed and is determined not to be a difficult intersection in SB4, it is determined not to display an enlarged view of the intersection. Further, when the enlarged map display setting specifying information of SB2 specifies that “display an enlarged intersection map” is set, regardless of the process of SB4, the intersection enlarged map for all intersections on the travel route. Is determined to be displayed. Further, when the enlarged map display setting specifying information of SB2 specifies that “do not display the enlarged intersection map” is set, the enlarged intersection map for all intersections on the travel route regardless of the processing of SB4. Is determined not to be displayed.

  Next, in SB6, the control unit 26 of the center apparatus 2 transmits specific information such as a guidance mode that is information for specifying the travel route generated in SB1 and the guidance mode determined in SB5. Specifically, after the specific information such as the guidance mode is transmitted to the in-vehicle device 3 corresponding to the device ID included in the route generation request via the communication unit 27, the guidance process is terminated.

  On the other hand, the in-vehicle device 3 that has received the specific information such as the guidance mode transmitted in SB6 guides the travel route based on the received specific information such as the guidance mode as in SA5 of FIG. Specifically, when entering the guidance section of the intersection determined to “display the enlarged intersection” in SB5, the guidance is displayed by displaying the enlarged intersection on the display 12 in addition to the normal guidance output. On the other hand, when the vehicle enters the guidance section of the intersection determined to “not display the enlarged intersection map” in SB5, guidance is provided by the normal guidance output without displaying the enlarged intersection map on the display 12.

(Effect of Embodiment 2)
As described above, according to the present embodiment, since the difficult intersection is determined based on the movement history information in the movement history information DB 252, for example, the determination accuracy of the difficult intersection determination can be improved. Appropriate guidance based on the passing results can be performed.

[Modifications to Embodiment]
Although the embodiments of the present invention have been described above, specific configurations and means of the present invention are arbitrarily modified and improved within the scope of the technical idea of the present invention described in the claims. be able to. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above contents, and may vary depending on the implementation environment and details of the configuration of the invention. May be solved, or only some of the effects described above may be achieved. For example, even if the user's convenience is about the same level as in the past with respect to the guidance of the intersection based on the determination of the guidance mode performed using the guidance mode determination system according to the present invention, it is about the same level as in the past due to a different structure In the case of having the convenience of the user for the guidance of the intersection, the problem of the present invention is solved.

(About distribution and integration)
Further, each of the electrical components described above is functionally conceptual and does not necessarily need to be physically configured as illustrated. In other words, the specific forms of distribution and integration of each unit are not limited to those shown in the drawings, and all or a part thereof may be functionally or physically distributed or integrated in arbitrary units according to various loads or usage conditions. Can be configured. For example, the in-vehicle device 1 is configured to be distributed among a plurality of devices (including a center device or a terminal device) configured to be able to communicate with each other, and a part of each part of the control unit 16 is included in a part of the plurality of devices. And another part of each part of the control unit 16 may be provided in another part of the plurality of devices.

(About shape, numerical value, structure, time series)
Regarding the constituent elements exemplified in the embodiment and the drawings, the shape, numerical value, or the structure of a plurality of constituent elements or the mutual relationship in time series may be arbitrarily modified and improved within the scope of the technical idea of the present invention. Can do.

(Determination of difficult intersections based on intersection shape information)
In the above embodiment, in SA3 of FIG. 2, a difficult intersection using all items of “number of intersection roads”, “number of branch roads”, and “road type of exit road” specified by the intersection shape information. Although the case where this determination is performed has been described, the present invention is not limited to this. For example, the difficult intersection may be determined using only some of these items. Further, in the above embodiment, in SA3 of FIG. 2, as determination criteria, “5” for “number of intersecting roads”, “1” for “number of branch roads”, and “roads on exit road” Although the case where “narrow street” is used for “type” has been described, the present invention is not limited to this. For example, a numerical value or road type other than these criteria may be set according to the user's usage needs, and the set criteria may be used.

  Further, in the above embodiment, in SA2 in FIG. 2, the road type of the exit road on the travel route at the intersection to be guided is specified, and the specified road type is acquired as the intersection shape information. Thereafter, SA3 However, the case where the determination is made based on the acquired road type has been described, but the present invention is not limited thereto. For example, in SA2, the road width of the approach road and the exit road on the travel route at the intersection to be guided is specified, and the specified road width is acquired as intersection shape information. Thereafter, in SA3, the acquired road width is acquired. The determination may be made based on the above. Specifically, in the determination of SA3 in this case, when the ratio of the road width of the exit road to the road width of the approach road is smaller than a predetermined threshold, it is determined that the road is a difficult intersection, and the ratio is less than the predetermined threshold. May be determined as not a difficult intersection.

(Determination of difficult intersections based on travel history information)
Moreover, in the said embodiment, although the case where determination of a difficult intersection was performed using the passage rate in SB4 of FIG. 6, it is not restricted to this. For example, the pass rate may be determined using “deviation rate” which is a concept of front and back. Here, the “deviation rate” is the ratio of the number of vehicles that have not passed the intersection according to the travel route, and specifically, the intersection according to the travel route of the passing vehicles with respect to the number of passing vehicles. The ratio of the number of vehicles that did not pass through (ie, deviated). Specifically, in the determination of SB4 in this case, when the departure rate at the intersection is less than a predetermined departure threshold (for example, 5%, etc.), it is determined that the intersection is not a difficult intersection, and the departure rate at the intersection is predetermined. If it is equal to or greater than the departure threshold, it may be determined that the intersection is a difficult intersection. In addition, for example, information specifying the accident occurrence rate at each intersection may be acquired from an external organization such as a traffic control station, and the determination may be made using the accident occurrence rate specified by the acquired information. Good.

(About the guidance mode determination method)
In the above-described embodiment, the guidance mode is determined based on the determination result of SA3 in SA4 of FIG. 2, and the guidance mode is determined based on the determination result of SB4 in SB5 of FIG. Although explained, it is not limited to this. For example, by performing communication between the in-vehicle device and the center device, the determination result of SA3 in FIG. 2 and the determination result of SB4 in FIG. 6 can be shared between these devices, The guidance mode may be determined based on the combination. Specifically, for the determination method in this case, when the determination results of both SA3 and SB4 are “not a difficult intersection”, it is determined that “the intersection enlarged view is not displayed”, and in other cases, the “intersection” It may be determined that “display an enlarged view”. Further, when both SA3 and SB4 determination results are “difficult intersections”, it is determined to “display an enlarged intersection map”, and in other cases, “do not display an enlarged intersection map”. You may do it.

  In the above-described embodiment, the description has been given of the case where the guidance mode of each intersection on the travel route is determined for all the intersections on the travel route in SB5 of FIG. 6, but the present invention is not limited to this. For example, regardless of the travel route, a guidance mode is determined for an intersection within a predetermined range on the map (for example, a range away from the user's home by a predetermined distance (for example, 5 kilometers)), and the determination result is The information may be transmitted to the in-vehicle device 3, and the transmitted information may be recorded in the data recording unit 15 and used by the in-vehicle device 3. Specifically, the in-vehicle device 3 generates a travel route by itself, determines a guidance mode corresponding to the generated travel route based on the recorded information, and reflects the determination result. You may make it guide. Further, for example, when the center device 2 constantly monitors the current position of the in-vehicle device 3 and the in-vehicle device 3 enters the guidance section, the center device 2 determines the guidance mode of the guidance target intersection, and the in-vehicle device is based on the determination result. The determination result may be transmitted so that 3 performs guidance.

(About definition of pass rate)
In the above embodiment, a case has been described in which the total number of vehicles is used as the number of vehicles of the passing rate specified by the information corresponding to the item “passing rate” of FIG. 5 used in SB4 of FIG. Not limited to. For example, each vehicle can be identified based on the device ID of the in-vehicle device, and the net number of vehicles (that is, the number of vehicles that are not counted repeatedly for the same vehicle) is used as the number of vehicles with a passing rate. Also good. In addition, for example, when using an in-vehicle device, the user logs in, and the user who uses the in-vehicle device can be specified based on the login name. The passing rate may be defined using the number of people or the net number of people). The definition of the above-described “deviation rate” in the modification may be the same.

(About the guidance mode)
In the above embodiment, the case where the “guidance mode” to be determined is the presence or absence of the display of the enlarged intersection view in SA4 in FIG. 2 and SB5 in FIG. 6 is described, but the present invention is not limited to this. For example, in this process, the intersection highlighting on the map, the presence or absence of output of a predetermined guidance voice (for example, a voice message such as “This is an easily misunderstood intersection. Volume adjustment or the like may be determined as the guidance mode.

[Characteristics and effects of the embodiment]
Finally, some of the features and effects of the embodiments described so far are exemplified below. However, the features and effects of each embodiment are not limited to the following contents, and only some of the following effects can be achieved by including only a part of the following features. By providing the above features, there may be other effects than the following effects.

  In the guidance mode determination system according to one aspect 1 of the embodiment, the intersection on the movement route is determined as the movement route based on the intersection shape information specifying the intersection shape or the movement history information specifying the movement history of the user. A determination means for performing an intersection determination that is a determination as to whether or not the intersection is difficult to pass along, and a guidance mode for guiding an intersection on the moving route based on a determination result of the determination means Guidance mode determining means for determining.

  According to the guidance mode determination system according to the aspect 1, the guidance mode for guiding the intersection on the moving route is determined based on the determination result of the intersection determination. For example, the guidance mode is manually set for each intersection. It is possible to determine the guidance mode without setting at, and to improve the convenience of the user regarding the guidance of the intersection.

  The guidance mode determination system according to another aspect 2 of the embodiment is the guidance mode determination system according to the above aspect 1, wherein the determination unit is based on the width of the intersection road or the number of road intersections specified by the intersection shape information. Then, the intersection determination is performed.

  According to the guidance mode determination system according to the above aspect 2, since the intersection determination is performed based on the width of the intersection road or the number of intersections of the road, for example, the determination accuracy of the intersection determination can be improved. Appropriate guidance based on the width or the number of road intersections can be performed.

  The guidance mode determination system according to another aspect 3 of the embodiment is the guidance mode determination system according to the above-described side surface 2 or side surface 1, wherein the determination unit is configured such that the user follows the travel route based on the travel history information. Then, a passing record as to whether or not the vehicle has passed through the intersection is specified, and the intersection determination is performed based on the specified passing record.

  According to the guidance mode determination system according to the above aspect 3, since the intersection determination is performed based on the movement history information, for example, the determination accuracy of the intersection determination can be improved, and appropriate guidance based on the passing results of the intersection Can be performed.

  The guidance mode determination system according to another aspect 4 of the embodiment is the guidance mode determination system according to any one of the side surface 1 to the side surface 3 described above, wherein the guidance mode determination unit determines whether or not an enlarged intersection view is displayed. The guide mode is determined.

  According to the guidance mode determination system according to the side surface 4, since the presence / absence of an enlarged view of the intersection is determined as the guidance mode, for example, a travel route for an intersection that is difficult to pass along the travel route, It is possible to make the user recognize intuitively and call attention regarding the passage of the intersection.

  The guidance terminal according to another aspect 5 of the embodiment is based on the intersection shape information specifying the intersection shape, and whether or not the intersection on the moving route is an intersection that is difficult to pass along the moving route. Determination means for making an intersection determination, and guidance mode determination means for determining a guidance mode for guiding an intersection on the travel route based on the determination result of the determination means.

  According to the guidance terminal according to the above aspect 5, since the guidance mode for guiding the intersection on the moving route is determined based on the determination result of the intersection determination, for example, the guidance mode is manually set for each intersection. The guidance mode can be determined without setting, and the convenience of the user regarding the guidance of the intersection can be improved.

  The guidance mode determination device according to another aspect 6 of the embodiment is an intersection where it is difficult for an intersection on a movement route to pass along the movement route based on movement history information that identifies a movement history of the user. Determining means for determining whether there is an intersection; guidance mode determining means for determining a guidance mode for guiding an intersection on the travel route based on a determination result of the determining means; and the guidance Transmission means for transmitting information for the guidance terminal to perform guidance to the guidance terminal based on the guidance mode determined by the mode determination means.

  According to the guidance mode determination device according to the above aspect 6, since the guidance mode for guiding the intersection on the moving route is determined based on the determination result of the intersection determination, for example, the guidance mode is manually set for each intersection. It is possible to determine the guidance mode without setting at, and to improve the convenience of the user regarding the guidance of the intersection.

  In the guidance mode determination method according to another aspect 7 of the embodiment, the determination unit is based on the intersection shape information that specifies the intersection shape or the movement history information that specifies the movement history of the user. A determination step of performing an intersection determination that is a determination as to whether or not the vehicle is an intersection that is difficult to pass along the movement route, and a guidance mode determination unit, based on the determination result in the determination step, And a guidance mode determination step for determining a guidance mode for guiding the upper intersection.

  According to the guidance mode determination method according to the aspect 7, the guidance mode for guiding the intersection on the moving route is determined based on the determination result of the intersection determination. For example, the guidance mode is manually set for each intersection. It is possible to determine the guidance mode without setting at, and to improve the convenience of the user regarding the guidance of the intersection.

  The guidance mode determination program according to another aspect 8 of the embodiment allows a computer to determine whether an intersection on a movement route is based on intersection shape information that specifies an intersection shape or movement history information that specifies a user's movement history. In order to guide the intersection on the travel route based on the determination result of the intersection determination that is a determination of whether or not the intersection is difficult to pass along the travel route, and the determination result of the determination means It is made to function as a guidance mode determination means for determining the guidance mode.

  According to the guidance mode determination program according to the aspect 8, the guidance mode for guiding the intersection on the moving route is determined based on the determination result of the intersection determination. For example, the guidance mode is manually set for each intersection. It is possible to determine the guidance mode without setting at, and to improve the convenience of the user regarding the guidance of the intersection.

1, 3 In-vehicle device 2 Center device 11 Touch panel 12 Display 13 Speaker 14 Current position detection unit 15, 25 Data recording unit 16, 26, 36 Control unit 27, 37 Communication unit 100, 200 Guidance mode determination system 151 Map information DB
161, 261 Route generation unit 162, 262 Determination unit 163, 263 Guide mode determination unit 164, 364 Guide unit 252 Movement history information DB
P1 Intersection image P2 Own vehicle symbol P3 Route symbol

Claims (8)

Whether or not the intersection on the moving route is difficult to pass along the moving route based on the intersection shape information specifying the intersection shape or the moving history information specifying the user's moving history A determination means for performing an intersection determination as a determination;
Guidance mode determining means for determining a guidance mode for guiding an intersection on the moving route based on a determination result of the determination unit;
A guidance mode determination system comprising: The determination means performs the intersection determination based on the width of an intersection road specified by the intersection shape information or the number of road intersections.
The guidance mode determination system according to claim 1. The determination means specifies a passing record as to whether or not a user has passed an intersection along the moving route based on the movement history information, and performs the intersection determination based on the specified passing record.
The guidance mode determination system according to claim 1 or 2. The guidance mode determination means determines whether or not to display an enlarged intersection view as the guidance mode.
The guidance mode determination system according to any one of claims 1 to 3. Based on the intersection shape information that specifies the intersection shape, a determination unit that performs an intersection determination that is a determination as to whether or not an intersection on the moving route is an intersection that is difficult to pass along the moving route;
Guidance mode determining means for determining a guidance mode for guiding an intersection on the moving route based on a determination result of the determination unit;
A guidance terminal comprising: Determination means for performing an intersection determination that is a determination as to whether or not an intersection on a movement route is an intersection that is difficult to pass along the movement route, based on movement history information that identifies a user's movement history;
Guidance mode determining means for determining a guidance mode for guiding an intersection on the moving route based on a determination result of the determination unit;
Based on the guidance mode determined by the guidance mode determination unit, transmission means for transmitting information for the guidance terminal to perform guidance to the guidance terminal;
A guidance mode determination device comprising: Based on the intersection shape information specifying the intersection shape or the movement history information specifying the user's movement history, the determination unit is an intersection where it is difficult for the intersection on the movement route to pass along the movement route. A determination step for performing an intersection determination, which is a determination of whether or not,
A guidance mode determination unit for determining a guidance mode for guiding an intersection on the travel route based on a determination result in the determination step;
A guidance mode determination method including: Computer
Whether or not the intersection on the moving route is difficult to pass along the moving route based on the intersection shape information specifying the intersection shape or the moving history information specifying the user's moving history A determination means for performing an intersection determination as a determination;
Guidance mode determining means for determining a guidance mode for guiding an intersection on the moving route based on a determination result of the determination unit;
Guide mode determination program to function as.

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