WO2013069140A1

WO2013069140A1 - Head-up display, display method, and road information display device

Info

Publication number: WO2013069140A1
Application number: PCT/JP2011/075990
Authority: WO
Inventors: 大奨梨本; 喬浩鎌田; 侑宏竹下; 祐輔中根
Original assignee: パイオニア株式会社
Priority date: 2011-11-10
Filing date: 2011-11-10
Publication date: 2013-05-16

Abstract

A head-up display, comprising: a traffic information acquisition means that obtains information about congestion and/or traffic restrictions present further ahead on a plurality of junction roads branching from a junction present in the direction of progression on the road that a moving body is traveling; and a display control means that displays on a display means a guide image including information indicating the presence of each of the plurality of junction roads indicated by road signs actually present on the road on which the moving body is traveling, and congestion information and/or traffic restriction information corresponding to each of the plurality of junction roads indicated by the road signs and obtained by the traffic information acquisition means. As a result, congestion information and traffic restriction information can be readily grasped by a user, and a display area in the head-up display can be effectively utilized.

Description

Head-up display, display method, and road information display device

The present invention relates to a technique for displaying information.

Conventionally, a display device such as a head-up display has been proposed in which a display image of information relating to driving of a vehicle is visually recognized as a virtual image from the position of the driver's eyes. For example, Patent Literature 1 proposes a technique for displaying a virtual sign indicating a type of an event such as a curve related to a road condition ahead of the host vehicle using a head-up display.

JP 2005-122583 A

By the way, conventionally, in a navigation apparatus or the like, an image imitating a direction signboard present on a road is used as a guide image. It would be convenient if traffic information such as traffic jam information and traffic regulation information can be displayed on the image imitating such a direction signboard.

The above is one example of problems to be solved by the present invention. The main object of the present invention is to provide a head-up display, a display method, and a road information display device capable of appropriately displaying traffic jam information and / or traffic regulation information together with information indicated by a direction signboard. .

In the first aspect of the present invention, the head-up display includes traffic jam information and / or traffic regulation existing at advancing destinations of a plurality of branch roads branched from a branch point existing in the traveling direction of the road on which the mobile body is traveling. Traffic information acquisition means for acquiring information, information indicating the presence of each of a plurality of branch roads indicated by direction signs actually present on the road on which the moving body is traveling, and acquired by the traffic information acquisition means And display control means for displaying on the display means a guide image including the traffic jam information and / or the traffic regulation information corresponding to each of the plurality of branch roads indicated by the direction signboard.

In the invention according to claim 8, the display method executed by the head-up display is a traffic jam existing at the destination of a plurality of branch roads branched from a branch point existing in the direction of travel of the road on which the moving body is traveling. A traffic information acquisition step of acquiring information and / or traffic regulation information, information indicating the presence of each of a plurality of branch roads indicated by a direction signboard that actually exists on the road on which the moving body is traveling, and the traffic A display control step of displaying on the display means a guidance image including the traffic jam information and / or the traffic regulation information corresponding to each of the plurality of branch roads indicated by the direction signboard acquired in the information acquisition step; Is provided.

In the invention according to claim 9, the road information display device includes traffic information and / or traffic existing at advancing destinations of a plurality of branch roads branched from a branch point existing in a traveling direction of the road on which the mobile body is traveling. Obtained by traffic information obtaining means for obtaining restriction information, information indicating the presence of each of a plurality of branch roads indicated by direction signs actually present on the road on which the mobile body is traveling, and obtained by the traffic information obtaining means Display control means for displaying on the display means a guidance image including the traffic jam information and / or the traffic regulation information corresponding to each of the plurality of branch roads indicated by the direction signboard.

The structural example of the system which concerns on an Example is shown. 1 shows a schematic configuration of a navigation device. 1 shows a schematic configuration of a head-up display. The example of a display by the head-up display which concerns on a present Example is shown. The figure for demonstrating concretely the direction signboard image which concerns on a present Example is shown.

In one aspect of the present invention, the head-up display includes traffic jam information and / or traffic regulation information existing at advancing destinations of a plurality of branch roads branched from a branch point existing in the traveling direction of the road on which the mobile object is traveling. Acquired by the traffic information acquisition means, information indicating the presence of each of a plurality of branch roads indicated by the direction signboard that actually exists on the road on which the moving body is traveling, and acquired by the traffic information acquisition means Display control means for displaying on the display means a guide image including the traffic jam information and / or the traffic regulation information corresponding to each of the plurality of branch roads indicated by the direction signboard.

The above-described head-up display is a device that is mounted on a moving body and visually recognizes an image as a virtual image from the position of the driver's eyes. The traffic information acquisition means acquires traffic jam information and / or traffic regulation information existing at advancing destinations of a plurality of branch roads branched from a branch point existing in the traveling direction of the road on which the mobile body is traveling. The display control means includes information indicating the presence of each of the plurality of branch roads indicated by the direction signboard that is actually present on the road on which the moving body is traveling, and traffic corresponding to each of the plurality of branch roads indicated by the direction signboard. A guide image including information and / or traffic regulation information (information acquired by the traffic information acquisition means) is displayed. According to the above-described head-up display, the traffic information and / or the traffic regulation information can be appropriately superimposed and displayed together with the information indicated by the actual direction signboard. According to such a configuration, it is possible to make the user easily grasp traffic information and traffic regulation information and to display the head-up display as compared with a configuration that displays traffic information and traffic regulation information on a map image. The area can be used effectively.

In another aspect of the head-up display, the display control unit displays a branch image indicating each of the branch point and the plurality of branch roads, and a traffic jam occurs in the traffic jam information from the branch point. The location on the branch image corresponding to the distance to the point and the length of traffic jam is displayed in a mode different from the display mode of the branch image. This makes it possible to easily grasp the specific contents of the traffic jam information.

In another aspect of the head-up display, the display control unit displays a branch image showing each of the plurality of branch roads, and traffic regulation included in the traffic regulation information has occurred from the branch point. The image which shows the content of the traffic regulation which the said traffic regulation information has is displayed on the position on the said branch image corresponding to the distance to a point. This makes it possible to easily grasp the specific contents of the traffic regulation information.

In another aspect of the head-up display, the display control unit changes a display mode of the guidance image according to an information source of the traffic jam information and / or the traffic regulation information. Thereby, it is possible to easily grasp the information source of traffic jam information and / or traffic regulation information.

Preferably, in the head-up display, the traffic information acquisition unit is configured to obtain the traffic jam information and / or the road information having the same road type and the same road name extending from the branch point to a point a predetermined distance ahead. Alternatively, the traffic regulation information is acquired. Preferably, the traffic information acquisition means has another branch point between the branch point and the point a predetermined distance away, and the road type and the road name from the other branch point. When it changes, the traffic jam information and / or the traffic regulation information is acquired for the road to the other branch point.

In the head-up display, preferably, the display control means displays the guidance image when route guidance to the destination is not performed. Thereby, even when route guidance is not performed, it becomes possible to appropriately acquire traffic jam information and traffic regulation information.

In another aspect of the present invention, the display method executed by the head-up display includes traffic jam information existing at advancing destinations of a plurality of branch roads branched from a branch point existing in a traveling direction of a road on which the mobile object is traveling. And / or a traffic information acquisition step for acquiring traffic regulation information, information indicating the presence of each of a plurality of branch roads indicated by a direction signboard that actually exists on the road on which the moving body is traveling, and the traffic information A display control step of causing a display means to display a guidance image including the traffic jam information and / or the traffic regulation information corresponding to each of the plurality of branch roads indicated by the direction signboard acquired in the acquisition step; Prepare.

In still another aspect of the present invention, the road information display device is used for traffic jam information and / or traffic existing at advancing destinations of a plurality of branch roads branched from a branch point existing in a traveling direction of a road on which a mobile object is traveling. Obtained by traffic information obtaining means for obtaining restriction information, information indicating the presence of each of a plurality of branch roads indicated by direction signs actually present on the road on which the mobile body is traveling, and obtained by the traffic information obtaining means Display control means for displaying on the display means a guidance image including the traffic jam information and / or the traffic regulation information corresponding to each of the plurality of branch roads indicated by the direction signboard.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[System configuration]
FIG. 1 shows a configuration example of a system according to the present embodiment. As shown in FIG. 1, the system includes a navigation device 1, a head-up display 2, and a server device 100. The navigation device 1 and the head-up display 2 are mounted on a vehicle.

The navigation device 1 has a function of performing route guidance from the departure point to the destination. The navigation device 1 can be, for example, a stationary navigation device installed in a vehicle, a PND (Portable Navigation Device), or a mobile phone such as a smartphone.

The head-up display 2 generates an image that displays map information including the current position, route guidance information, travel speed, and other information that assists driving, and the image is converted into a virtual image from the position (eye point) of the driver's eyes. It is a device for visual recognition. The head-up display 2 is supplied from the navigation device 1 with various information used for navigation processing such as vehicle position and orientation information, map information, and facility data.

If the navigation device 1 is a mobile phone such as a smartphone, the navigation device 1 may be held by a cradle or the like. In this case, the navigation device 1 may exchange information with the head-up display 2 via a cradle or the like.

The server device 100 transmits and receives information to and from the navigation device 1. The server device 100 generates information necessary for guidance in the navigation device 1 based on the information received from the navigation device 1, and transmits the information to the navigation device 1. For example, the server device 100 transmits traffic information such as traffic jam information and traffic regulation information to the navigation device 1. Moreover, the server apparatus 100 transmits / receives information between the navigation apparatuses 1 mounted in the some vehicle. The server device 100 generates predetermined information based on information transmitted from the plurality of navigation devices 1 and transmits the information to the navigation device 1.

[Configuration of navigation device]
FIG. 2 shows the configuration of the navigation device 1. As shown in FIG. 2, the navigation device 1 includes a self-supporting positioning device 10, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, a communication interface 37, a communication device 38, an interface 39, and a display unit 40. A voice output unit 50 and an input device 60.

The self-supporting positioning device 10 includes an acceleration sensor 11, an angular velocity sensor 12, and a distance sensor 13. The acceleration sensor 11 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data. The angular velocity sensor 12 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative azimuth data. The distance sensor 13 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.

The GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites. The positioning data is used to detect the absolute position of the vehicle (hereinafter also referred to as “current position”) from latitude and longitude information.

The system controller 20 includes an interface 21, a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23, and a RAM (Random Access Memory) 24, and controls the entire navigation device 1.

The interface 21 performs an interface operation with the acceleration sensor 11, the angular velocity sensor 12, the distance sensor 13, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20. The CPU 22 controls the entire system controller 20. The ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored. The RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.

A system controller 20, a disk drive 31 such as a CD-ROM drive or a DVD-ROM drive, a data storage unit 36, a communication interface 37, a display unit 40, an audio output unit 50 and an input device 60 are mutually connected via a bus line 30. It is connected to the.

The disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20. The disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive. The data storage unit 36 is configured by, for example, an HDD and stores various data used for navigation processing such as map data. The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and acquires information distributed from the server device 100 and the like from the radio wave 39. The communication device 38 acquires, for example, VICS information (VICS: Vehicle Information Communication System). “VICS” is a registered trademark (hereinafter the same). The interface 37 performs an interface operation of the communication device 38 and inputs the VICS information to the system controller 20 or the like. Further, the communication device 38 transmits information on the current position acquired from the GPS receiver 18 to the head-up display 2.

The display unit 40 displays various display data on a display device such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map data from the data storage unit 36. The display unit 40 displays the map data read from the data storage unit 36 by the system controller 20 on the display screen. The display unit 40 includes a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 via the bus line 30 and a memory such as a VRAM (Video RAM), and can display image information that can be displayed immediately. A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal or a CRT (Cathode Ray Tube) based on image data output from the graphic controller 41, and a display 44 are provided. . The display 44 functions as an image display unit, and includes, for example, a liquid crystal display device having a diagonal size of about 5 to 10 inches and is mounted near the front panel in the vehicle.

The audio output unit 50 performs D / A (Digital to Analog) conversion of audio digital data sent from the CD-ROM drive 31, DVD-ROM 32, RAM 24, or the like via the bus line 30 under the control of the system controller 20. A D / A converter 51 to perform, an amplifier (AMP) 52 that amplifies the audio analog signal output from the D / A converter 51, and a speaker 53 that converts the amplified audio analog signal into sound and outputs the sound into the vehicle. It is prepared for.

The input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data. The input device 60 is disposed around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle. When the display 44 is a touch panel system, the touch panel provided on the display screen of the display 44 also functions as the input device 60.

[Configuration of head-up display]
FIG. 3 is a schematic configuration diagram of the head-up display 2. As shown in FIG. 3, the head-up display 2 according to this embodiment includes a light source unit 3 and is attached to a vehicle including a front window 25, a ceiling portion 27, a bonnet 28, a dashboard 29, and the like.

The light source unit 3 is installed on the ceiling portion 27 in the passenger compartment via the

support members

5a and 5b, and emits light constituting an image indicating information for assisting driving toward the combiner 9. Specifically, the light source unit 3 generates an original image (real image) of the display image in the light source unit 3 based on the control of the control unit 4, and emits light constituting the image to the combiner 9. The virtual image “Iv” is visually recognized by the driver via the combiner 9. For example, the light source unit 3 includes semiconductor lasers such as a red LD (laser diode), a green LD, and a blue LD, and emits red laser light, green laser light, and blue laser light.

The combiner 9 projects the display image emitted from the light source unit 3 and reflects the display image to the driver's eye point Pe to display the display image as a virtual image Iv. And the combiner 9 has the support shaft part 8 installed in the ceiling part 27, and rotates the support shaft part 8 as a spindle. The support shaft portion 8 is installed, for example, in the vicinity of the ceiling portion 27 in the vicinity of the upper end of the front window 25, in other words, the position where a sun visor (not shown) for the driver is installed. The support shaft portion 8 may be installed instead of the above-described sun visor. The light source unit 3 and the combiner 9 are examples of the “display unit” in the present invention.

The control unit 4 includes a CPU, RAM, ROM, and the like (not shown), and performs general control of the head-up display 2. The control unit 4 can communicate with the navigation device 1 and receives various types of information used for navigation processing from the navigation device 1.

[Display method]
Next, a display method according to the present embodiment will be described. In this embodiment, the head-up display 2 corresponds to an example of a direction signboard that actually exists on the road on which the vehicle travels (corresponding to an example of a “guide image” in the present invention. And the traffic jam information and traffic regulation information are displayed on the signboard image. That is, the head-up display 2 displays information indicating the presence of each of the plurality of branch roads indicated by the actual direction signboard, and also displays congestion information and traffic regulation information for each of the plurality of branch roads indicated by the direction signboard. Let me.

A “direction signboard” basically includes a road on which a vehicle is traveling, a branch point (such as an intersection) existing in the traveling direction of the road on which the vehicle is traveling, and a plurality of branch points branched from the branch point. It is a traffic sign indicating a branch road and a direction to which a plurality of branch roads are headed (such as destination place names). In this embodiment, a direction signboard image simulating such a direction signboard is displayed. The term “direction signboard image” described above is used not only for an image imitating a direction signboard but also for an image in which traffic jam information and traffic regulation information are displayed superimposed on the image.

In addition, “congestion information” is a traffic congestion status (in other words, a traffic congestion degree (congestion status), specifically expressed as “congestion” and “congestion”), a traffic congestion section, a traffic jam length (congestion section). Length) and time required for passing through a traffic jam section. Further, the “traffic regulation information” is information including the contents of traffic regulation such as traffic closure and one-sided traffic, the point where the traffic regulation occurs, and the like. The traffic regulation information basically uses information handled by VICS.

FIG. 4 shows a display example by the head-up display 2 according to the present embodiment. FIG. 4 shows a display example of the front window 25 visually recognized by the driver. Moreover, in FIG. 4, the position of the combiner 9 is shown with the broken line.

As shown in FIG. 4, in the present embodiment, the head-up display 2 displays a direction signboard image 80 imitating a direction signboard 70 that actually exists on the road on which the vehicle is traveling. Specifically, the head-up display 2 displays information indicating the presence of each of the plurality of branch roads indicated by the direction signboard 70, and traffic jam information and traffic regulation information for each of the plurality of branch roads indicated by the direction signboard 70. The included image is displayed as the direction signboard image 80. The specific contents of the direction signboard image 80 will be described later in detail.

Here, an outline of processing performed in the navigation device 1, the head-up display 2, and the server device 100 when the direction signboard image 80 is displayed will be described.

The navigation device 1 stores information on the direction signboard image 80 to be displayed (such as the display form of the direction signboard image 80) and information on the timing for displaying the direction signboard image 80 for each link in the data storage unit 36. is doing. The navigation device 1 refers to the information stored in this manner, determines the timing for displaying the direction signboard image 80 and the direction signboard image 80 to be displayed based on the current position and the traveling direction of the vehicle, and The signboard image 80 and information corresponding to the timing are transmitted to the head-up display 2. Then, the head-up display 2 displays the direction signboard image 80 to be displayed at the timing to be displayed based on the received information.

On the other hand, the navigation apparatus 1 stores information including the current position (position coordinates), a range based on the current position (for example, a range 10 km away from the current position), a request for traffic jam information and traffic regulation information, and the like. Transmit to device 100. The server device 100 generates traffic jam information and traffic regulation information based on the information received from the navigation device 1, and transmits the generated traffic jam information and traffic regulation information to the navigation device 1. Based on the VICS information and information transmitted from the plurality of navigation devices 1, the server device 100 generates traffic jam information and traffic regulation information according to the requested navigation device 1.

In this embodiment, the server device 100 generates traffic jam information and traffic regulation information for each of a plurality of branch roads indicated by the direction signboard 70. In one example, the navigation device 1 transmits information related to the direction signboard 70 (for example, information such as a branch point indicated by the direction signboard 70), and the server device 100 generates traffic jam information and traffic regulation information based on the information. To do. In another example, the navigation device 1 does not transmit information regarding the direction signboard 70 but transmits only information such as the current position as described above, and the server device 100 determines the direction signboard based on the information such as the current position. The branch point indicated by 70 is identified, and traffic jam information and traffic regulation information are generated.

More specifically, the server device 100 relates to a plurality of branch roads extending from the branch point indicated by the direction signboard 70, and information on traffic congestion and traffic on a road from the branch point to a point ahead by a predetermined distance (for example, 10 km). Generate regulatory information. Specifically, the server device 100 has traffic information and road information about roads that have the same road type and the same road name (that is, roads that have traveled along the road from the branch point) extending from the branch point to a point a predetermined distance away. Generate traffic regulation information. However, when another branch point exists between the branch point and a point a predetermined distance away from the branch point, and the road type and the road name change from the other branch point, the server device 100 Congestion information and traffic regulation information are generated for the road to the branch point. Note that this is not the case when the road type and road name do not change even after the other branch point.

Then, the navigation device 1 transmits the traffic jam information and the traffic regulation information thus created by the server device 100 to the head-up display 2. In this case, the head-up display 2 displays the traffic jam information and the traffic regulation information on the direction signboard image 80 described above. Specifically, the head-up display 2 displays an image showing each of a plurality of branch roads indicated by the direction signboard 70, and an image showing a road where traffic jam information and traffic regulation information exist among the plurality of branch roads. The image showing the traffic jam information and the traffic regulation information is displayed in association with.

Thus, the navigation device 1 corresponds to an example of the “road information display device” according to the present invention, and functions as “traffic information acquisition means” and “display control means”.

[Direction signboard image]
Next, the direction signboard image 80 displayed by the head-up display 2 will be specifically described with reference to FIG.

FIG. 5A is an enlarged view of the direction signboard image 80 shown in FIG. The direction signboard image 80 mainly includes a guide part 81, a frame part 82, and a background part (background part) 83. The guide unit 81 includes a road 81a on which the vehicle is traveling, a branch point (corresponding to an intersection) 81b existing in the traveling direction of the road on which the vehicle is traveling, and a plurality of branch roads 81c branched from the branch point 81b. To 81e and characters for guiding them. The branch roads 81c to 81e are represented by arrows indicating the direction of destinations (Atsugi, Yokohama, Hachioji). The information shown by the guide unit 81 basically conforms to the information shown by the direction signboard 70 that actually exists. The arrows indicating the branch roads 81c to 81e have a length corresponding to a predetermined distance (for example, 10 km) used when the server apparatus 100 generates traffic jam information and traffic regulation information. The arrows indicating the branch roads 81c to 81e are examples of “branch images”.

The frame part 82 corresponds to a frame surrounding the guide part 81, that is, an outer frame of the direction signboard image 80. The background portion 83 corresponds to a portion where guidance is not displayed in the direction signboard image 80, and corresponds to the background of the guide portion 81. The background part 83 is displayed in a color corresponding to the type of road on which the vehicle is traveling. For example, the background portion 83 is displayed in blue if the road type on the running road is a general road, and is displayed in green if the road type on the running road is a highway. In FIG. 5A, for convenience of explanation, outlines (black lines) of the guide part 81, the frame part 82, and the background part 83 are shown. In practice, such outlines are not displayed. Not.

In this embodiment, the guide part 81 and the frame part 82 are displayed in the same color or similar colors. For example, the guide part 81 and the frame part 82 are displayed in white. By doing so, the boundary between the portion where the direction signboard image 80 is displayed and the scenery of the outside world observed through the combiner 9 becomes clear, and the visibility of the direction signboard image 80 can be improved. Become.

In this embodiment, traffic jam information and traffic regulation information are displayed in association with each of the branch roads 81c to 81e. In the example shown in FIG. 5A, the traffic jam information 84 is displayed on the branch road 81c, the traffic jam information 85 is displayed on the branch road 81d, and the traffic regulation information 86 is displayed on the branch road 81e. ing.

FIG. 5B shows a diagram for specifically explaining the

traffic jam information

84 and 85 and the traffic regulation information 86 associated with each of the branch roads 81c to 81e. On the branch road 81c, as the traffic jam information 84, a character image 84a such as “1 km ahead 4km traffic jam” indicating the distance from the branch point 81b to the traffic jam occurrence point and the traffic jam length, and “50 minutes” indicating the transit time of the traffic jam section. Is displayed as a character image 84b. In addition, an image 84c is displayed in which the part corresponding to the traffic jam section in the arrow indicating the branch road 81c is expressed in a color (for example, red) different from the color of the arrow (for example, white). The image 84c is located at a location separated from the branch point 81b by a distance L1 corresponding to the distance to the traffic jam occurrence point, and has a length L2 corresponding to the traffic jam length.

Similarly, on the branch road 81d, as the traffic jam information 85, a character image 85a such as “5 km ahead 2km traffic jam” indicating the distance from the junction 81b to the traffic jam occurrence point and the traffic jam length, and the time required to pass through the traffic jam section “ A character image 85b such as “30 minutes” is displayed. In addition, an image 85c is displayed in which an arrow indicating the branch road 81d corresponds to a traffic congestion section in a color (for example, red) different from the color of the arrow (for example, white). This image 85c is located at a location separated from the branch point 81b by a distance L3 corresponding to the distance to the traffic jam occurrence point, and has a length L4 corresponding to the traffic jam length.

It should be noted that the display mode of the

traffic information

84 and 85 may be changed according to traffic conditions (congested / congested). For example, if the traffic condition is “congested”, the

images

84c and 85c in the

traffic information

84 and 85 are displayed in red. If the traffic condition is “congested”, the

images

84c and 85c in the

traffic information

84 and 85 are yellow. Or it can be displayed in orange.

On the other hand, on the branch road 81e, as the traffic regulation information 86, a character image 86a such as “distance of the 8km leading road being regulated” indicating the distance from the branch point 81b to the point where the traffic regulation occurred and the contents of the traffic regulation is displayed. . In addition, an image 86b indicating the contents of traffic regulation (specifically, vehicle closure) is displayed on the arrow indicating the branch road 81e. This image 86b is located at a location separated from the branch point 81b by a distance L5 corresponding to the distance to the point where the traffic restriction occurs. For example, the image 86b is displayed in a manner similar to a form such as an actual traffic regulation sign.

The direction signboard image 80 shown in FIG. 5 shows an example in which traffic jam information or traffic regulation information is displayed for all the branch roads 81c to 81e, but when there is no traffic jam information and traffic regulation information, It goes without saying that these pieces of information are not displayed, and only information indicating the presence of a branch road is displayed.

According to the present embodiment described above, the traffic information and traffic regulation information can be appropriately superimposed and displayed together with the information indicated by the actual direction signboard 70. Here, even with a conventional navigation device or the like, traffic jam information or the like is displayed on a map image. Since the head-up display 2 has a relatively small display area and should not display an image (for example, an image with a large amount of information) that hinders driving, it displays traffic information on the map image in this way. It can be said that such a configuration is difficult to apply to the head-up display 2. Therefore, in this embodiment, the head-up display 2 displays traffic jam information and traffic regulation information on a direction signboard image 80 imitating the direction signboard 70 instead of a map image. That is, in the present embodiment, traffic jam information and traffic regulation information are displayed on the direction signboard image 80 having a smaller amount of information than the map image. Thereby, the user can easily grasp the traffic jam information and the traffic regulation information. Further, the direction signboard 70 that actually exists on the road is not seen at an arbitrary timing. However, according to the present embodiment, the direction signboard image 80 is displayed by the head-up display 2, so that it can be displayed when necessary. Information on the direction signboard 70 can be appropriately acquired.

The direction signboard image 80 as described above is displayed not only when the route guidance is performed but also when the route guidance is not performed. Thereby, even when route guidance is not performed, it becomes possible to easily acquire traffic jam information and traffic regulation information via the direction signboard image 80 displayed by the head-up display 2.

[Modification]
Below, the modification suitable for said Example is demonstrated. Note that the following modifications may be arbitrarily combined and applied to the above-described embodiments.

(Modification 1)
Depending on the information source of the traffic jam information and traffic regulation information, the display mode of the traffic jam information and traffic regulation information may be changed. Specifically, when the traffic jam information and traffic regulation information are VICS information, the traffic jam information and traffic regulation information are information generated by the server device 100 based on information transmitted from the plurality of navigation devices 1. Depending on the case, the display mode of traffic jam information and traffic regulation information may be changed. For example, when the traffic information or traffic regulation information is VICS information, the head-up display 2 can display the traffic information or traffic regulation information with a solid line. Traffic information and traffic regulation information can be displayed with broken lines.

Note that the VICS information is used in preference to the information generated based on the information transmitted from the plurality of navigation devices 1. In addition, the server apparatus 100 creates predetermined information based on information transmitted from the plurality of navigation apparatuses 1 only for an area different from the area covered by the VICS (that is, an area not covered by the VICS). That is, the area where the predetermined information is created based on the information transmitted from the plurality of navigation devices 1 is different from the area covered by VICS. From the above, basically, both the VICS information and the information generated based on the information transmitted from the plurality of navigation devices 1 are not displayed on the same road.

(Modification 2)
In the above description, the traffic information generated on the server device 100 side is displayed. However, the traffic information generated on the navigation device 1 side may be displayed instead of the traffic information. Specifically, in the case where the navigation device 1 stores traffic jam statistical information indicating information on past traffic jams as one of the road (link) information, it is predicted based on the traffic jam statistical information. You may display traffic information.

(Modification 3)
In the above, as the direction signboard image 80, the information indicating the presence of each of the plurality of branch roads is displayed, and the congestion information and the traffic regulation information about each of the plurality of branch roads are displayed. Only character information corresponding to such information may be displayed. That is, information on a plurality of branch roads, traffic jam information, and traffic regulation information may be displayed in characters without displaying an image imitating the direction signboard 70. In still another example, the display / non-display of the direction signboard image 80 may be switched by the user's selection.

(Modification 4)
In the above example, the traffic jam information and the traffic regulation information are displayed on the direction billboard image 80 imitating the direction billboard 70. However, the traffic jam information and the traffic regulation information are superimposed on the actual direction billboard 70. May be displayed. That is, traffic jam information and traffic regulation information may be displayed in AR (AR: Augmented Reality). The navigation device 1 or the head-up display 2 is provided with a camera that captures the scenery outside the vehicle, and the AR image is displayed by analyzing the image captured by the camera and extracting the direction signboard 70 in the image. Can be realized.

(Modification 5)
Instead of displaying information on the direction signboard 70, traffic information, and the like, such information may be notified by voice. For example, the information on the direction signboard 70, the traffic information, and the traffic regulation information may be displayed only when there is a display request from the user after the notification by voice.

(Modification 6)
In the above-described embodiment, the navigation device 1 generates the direction signboard image 80 and transmits the image to the head-up display 2, and the head-up display 2 displays the received direction signboard image 80. In another example, the head-up display 2 can display the direction signboard image 80 without performing communication with the navigation device 1. That is, the head-up display 2 functions in the same manner as the navigation device 1 described above, and can generate the direction signboard image 80 and display the image. Specifically, the head-up display 2 stores information on the direction signboard image 80, and displays the direction signboard image 80 to be displayed at the timing to be displayed based on the current position and the traveling direction of the vehicle. . Further, the head-up display 2 receives the traffic jam information and traffic regulation information created by the server device 100 and displays the received traffic jam information and traffic regulation information on the direction signboard image 80 in an overlapping manner. In such an example, the control unit 4 in the head-up display 2 functions as a “traffic information acquisition unit” and a “display control unit” in the present invention.

In yet another example, the navigation device 1 and the head-up display 2 can perform the processing for generating the direction signboard image 80 as described above in cooperation with each other. For example, the navigation device 1 may perform a part of the process for generating the direction signboard image 80 and the head-up display 2 may perform the remaining part of the process. In this case, the navigation device 1 and the head-up display 2 correspond to an example of “head-up display” or “road information display device” in the present invention.

(Modification 7)
The present invention can also be applied to an apparatus (guidance apparatus) that performs guidance by photographing a scene observed from a moving body with a camera and displaying a guidance image superimposed on a real image obtained by photographing. it can. In the case where the present invention is applied to such a guide device, the above-mentioned direction signboard image 80 may be displayed so as to be superimposed on the photographed image.

The present invention can be suitably applied to a head-up display, a navigation device (including a mobile phone such as a smartphone), and the like.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Head-up display 3 Light source unit 4 Control part 9 Combiner 100 Server apparatus

Claims

Traffic information acquisition means for acquiring traffic jam information and / or traffic regulation information existing at a destination of a plurality of branch roads branched from a branch point existing in a traveling direction of a road on which a moving object is traveling;
Information indicating the presence of each of a plurality of branch roads indicated by a direction signboard that actually exists on the road on which the mobile body is traveling, and the plurality of indications indicated by the direction signboard acquired by the traffic information acquisition means A head-up display comprising: display control means for causing a display means to display a guidance image including the traffic jam information and / or the traffic regulation information corresponding to each branch road.
The display control means displays a branch image indicating each of the branch point and the plurality of branch roads, and the branch according to a distance from the branch point to a traffic jam occurrence point included in the traffic jam information and a traffic jam length. The head-up display according to claim 1, wherein a portion on the image is displayed in a mode different from a display mode of the branch image.
The display control means displays a branch image indicating each of the plurality of branch roads, and on the branch image corresponding to a distance from the branch point to a point where the traffic regulation included in the traffic regulation information occurs. The head-up display according to claim 1, wherein an image indicating the content of traffic regulation included in the traffic regulation information is displayed at a position.
The head according to any one of claims 1 to 3, wherein the display control unit changes a display mode of the guide image according to an information source of the traffic jam information and / or the traffic regulation information. Up display.
The traffic information acquisition means acquires the traffic jam information and / or the traffic regulation information for a road having the same road type and the same road name extending from the branch point to a point a predetermined distance away. The head-up display according to claim 1, wherein the head-up display is provided.
The traffic information acquisition means, when another branch point exists between the branch point and the point a predetermined distance away, and when the road type and the road name change from the other branch point The head-up display according to claim 5, wherein the traffic jam information and / or the traffic regulation information is acquired for a road to the another branch point.
The head-up display according to any one of claims 1 to 6, wherein the display control means displays the guidance image when route guidance to a destination is not performed.
A display method performed by a heads-up display,
A traffic information acquisition step of acquiring traffic jam information and / or traffic regulation information existing at a destination of a plurality of branch roads branched from a branch point existing in the traveling direction of the road on which the mobile body is traveling;
Information indicating the presence of each of a plurality of branch roads indicated by a direction signboard that actually exists on the road on which the mobile body is traveling, and the plurality of indications indicated by the direction signboard acquired in the traffic information acquisition step A display method comprising: a display control step of causing a display unit to display a guide image including the traffic jam information and / or the traffic regulation information corresponding to each of the branch roads.
Traffic information acquisition means for acquiring traffic jam information and / or traffic regulation information existing at a destination of a plurality of branch roads branched from a branch point existing in a traveling direction of a road on which a moving object is traveling;
Information indicating the presence of each of a plurality of branch roads indicated by a direction signboard that actually exists on the road on which the mobile body is traveling, and the plurality of indications indicated by the direction signboard acquired by the traffic information acquisition means A road information display device, comprising: display control means for causing a display means to display a guidance image including the traffic jam information and / or the traffic regulation information corresponding to each branch road.