Vehicle display device, vehicle display system, vehicle display method and program

Abstract

To obtain a display device for vehicles, a display system for vehicles, a display method for vehicles, and a program, which are capable of guiding a driver's line of sight in an appropriate direction in accordance with a traveling speed of the vehicle in a configuration of displaying an image in front of the vehicle.SOLUTION: A display device for a vehicle comprises a processor, in which the processor acquires vehicle speed information, and displays linear images RL and LL extending toward the front of the vehicle from the vicinity of the vehicle as base ends in front of the vehicle in a predetermined display area; and the processor displays leading ends of the linear images RL and LL in an emphasized manner as the vehicle speed increases.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a vehicle display device, a vehicle display system, a vehicle display method, and a program. [Background technology]

[0002] Patent Document 1 discloses an in-vehicle display device that displays a predicted driving trajectory of a vehicle on a head-up display device (head-up display). The in-vehicle display device of Patent Document 1 also discloses a configuration in which the predicted driving trajectory is displayed in different colors depending on the driving speed and acceleration of the vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-178679 Summary of the Invention [Problem to be solved by the invention]

[0004] By displaying a linear image in front of the vehicle as in Patent Document 1, the line of sight of the occupant can be directed forward of the vehicle. On the other hand, for stable driving, it is preferable for the line of sight of the driver who drives the vehicle to shift in accordance with the vehicle speed so that the driver directs his / her line of sight forward as the vehicle speed increases and to a position closer to the vehicle as the vehicle speed decreases.

[0005] The present invention aims to provide a vehicle display device, a vehicle display system, a vehicle display method, and a program that can guide the driver's line of sight in an appropriate direction depending on the vehicle's traveling speed in a configuration that displays an image in front of the vehicle. [Means for solving the problem]

[0006] The vehicle display device according to claim 1 includes a processor, and the processor acquires vehicle speed information and displays a linear image in front of the vehicle in a predetermined display area, the linear image having a base end near the vehicle and extending toward the front side of the vehicle, and the linear image is configured to move toward the front side of the vehicle as the vehicle speed increases. So that it becomes darker Highlight.

[0007] In the vehicle display device according to claim 1, a linear image is displayed in front of the vehicle, the linear image extending from the vicinity of the vehicle toward the front side of the vehicle. So that it becomes darker Therefore, when the vehicle speed is low, the linear image is displayed with the vehicle side emphasized. In addition, as the vehicle speed increases, the darker parts move toward the front end. Generally, the driver's gaze is guided to darker colors rather than lighter colors, so the visual effect can guide the driver's gaze in the appropriate direction. In addition, "extending toward the front of the vehicle" as used here is not limited to a configuration extending in a straight line from near the vehicle to the front of the vehicle, but is a concept that broadly includes a configuration extending in a curved manner toward the front of the vehicle. The vehicle display device of claim 2 has a processor, which acquires vehicle speed information and displays a linear image in front of the vehicle in a specified display area, the linear image having a base end near the vehicle and extending toward the front of the vehicle, and displays the tip side of the linear image in a more highlighted color than the base end side as the vehicle speed increases. In the vehicle display device according to claim 2, when the vehicle speed increases, the accent color portion of the linear image moves toward the tip. Since the driver's gaze is generally guided to the accent color, the visual effect can guide the driver's gaze in an appropriate direction. Note that the "accent color" referred to here is not limited to a color with high saturation, but refers to a color that contrasts with the color of other parts. The vehicle display device of claim 3 has a processor, which acquires vehicle speed information and displays a linear image in front of the vehicle in a specified display area, the linear image having a base end near the vehicle and extending toward the front of the vehicle, and highlights the linear image so that the tip end becomes thicker as the vehicle speed increases. In the vehicle display device according to claim 3, when the vehicle speed increases, the thick part of the linear image moves to the tip side. Since the driver's line of sight is generally guided to the thick part rather than the thin part, the visual effect can guide the driver's line of sight in an appropriate direction.

[0012] The vehicle display device according to claim 4 comprises: The vehicle has a processor that acquires vehicle speed information and displays a pair of linear images extending toward the front of the vehicle from a base end near the vehicle in a specified display area in front of the vehicle at a position corresponding to both ends in the width direction of the vehicle, and displays the linear images so that the length of the linear images becomes longer as the vehicle speed increases, and curves the linear images along a trajectory that corresponds to the steering angle of the vehicle.

[0013] In the vehicle display device according to claim 4, the linear image becomes longer and the tip side of the linear image is emphasized as the vehicle speed increases, which makes it easier to guide the driver's line of sight.

[0015] Also Since a pair of linear images are displayed at positions corresponding to both ends of the vehicle in the width direction, the driver can indirectly check the width of the vehicle just by looking at the width of the linear images. In addition, since the linear images are curved according to the steering angle of the vehicle, the linear images can be used as a predicted trajectory line of the vehicle.

[0024] Claim 5 The vehicle display system according to the present invention includes claims 1 to 4and a display provided inside or outside the vehicle cabin on which an image of the area in front of the vehicle and the linear image are displayed.

[0025] Claim 5 In the vehicle display system according to the present invention, a linear image is displayed on a display. Therefore, for example, when a driver remotely controls a vehicle from outside the vehicle, the driver can look at the linear image displayed on the display and direct his or her gaze to an appropriate position according to the vehicle speed even if the driver is not in the vehicle.

[0026] Claim 6 The vehicle display method according to the present invention acquires vehicle speed information, and displays a linear image in front of the vehicle in a predetermined display area, the linear image having a base end near the vehicle and extending toward the front side of the vehicle, and the linear image is displayed so that the tip side of the linear image becomes larger as the vehicle speed increases. So that it becomes darker Highlight.

[0027] Claim 7 The program according to claim 1, further comprising: acquiring vehicle speed information, displaying a linear image in front of the vehicle in a predetermined display area, the linear image having a base end near the vehicle and extending toward the front side of the vehicle, and displaying the linear image in a manner such that the tip end of the linear image becomes larger as the vehicle speed increases. So that it becomes darker Highlight and cause the computer to execute the process. Effect of the Invention

[0028] As described above, the vehicle display device, vehicle display system, vehicle display method, and program of the present invention can guide the driver's line of sight in an appropriate direction depending on the vehicle's traveling speed in a configuration that displays an image in front of the vehicle. [Brief description of the drawings]

[0029] [Figure 1] 1 is a diagram showing a schematic configuration of a remote control system including a vehicular display system according to a first embodiment. [Diagram 2] FIG. 2 is a block diagram showing a hardware configuration of a vehicle. [Diagram 3]1 is a block diagram showing a hardware configuration of a vehicle display system according to a first embodiment. [Figure 4] 1 is a block diagram showing a functional configuration of a vehicle display device according to a first embodiment; [Diagram 5] FIG. 13 is a diagram showing an example of a display on the display, illustrating a state in which the traveling speed is low. [Figure 6] FIG. 13 is a diagram showing an example of a display on the display, illustrating a state in which the traveling speed is high. [Figure 7] 11 is a flowchart showing an example of the flow of a display process. [Figure 8] FIG. 13 is a diagram showing an example of a display on the display in the first modified example, showing a state in which the traveling speed is low. [Figure 9] FIG. 13 is a diagram showing an example of a display on the display in the first modified example, showing a state in which the traveling speed is high. [Figure 10] FIG. 13 is a diagram showing an example of a display on the display in the second modified example, showing a state in which the traveling speed is low. [Figure 11] FIG. 13 is a diagram showing an example of a display on the display in the second modified example, showing a state in which the traveling speed is high. [Figure 12] FIG. 11 is a block diagram showing a hardware configuration of a vehicle display system according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] First Embodiment A vehicular display system 10 according to a first embodiment will be described with reference to the drawings. Note that the dimensional ratios in the drawings are exaggerated for the sake of convenience and may differ from the actual dimensional ratios.

[0031] 1, the remote operation system S includes a vehicle 12 and a vehicle display system 10. The vehicle 12 and the vehicle display system 10 are connected to each other via a predetermined network 18.

[0032] The vehicle 12 of this embodiment includes a driving control unit 20. The vehicle 12 is configured to be switchable between a manual driving mode and a remote operation mode, and in the manual driving mode, the vehicle 12 is driven by an occupant (driver) of the vehicle 12 operating the vehicle 12. On the other hand, in the remote operation mode, the driving control unit 20 drives the vehicle 12 based on a remote operation signal input from the vehicular display system 10. That is, the vehicular display system 10 of this embodiment includes a remote operation device.

[0033] The vehicular display system 10 is provided outside the vehicle 12 (outside the vehicle cabin) and includes a display 64 (see FIG. 3) for displaying an image, and a predetermined image including the foreground of the vehicle 12 is displayed on this display 64. The vehicular display system 10 also includes a vehicular display device 22 for performing display processing on the display 64. The vehicular display device 22 also includes a remote operation function, and is configured to transmit a remote operation signal input by an operator to the vehicle 12 via the network 18. Here, an operator (driver) performing remote operation drives the vehicle 12 by remote operation while viewing the image displayed on the display 64.

[0034] (Hardware configuration of vehicle 12) Fig. 2 is a block diagram showing a hardware configuration of the vehicle 12. As shown in Fig. 2, the driving control unit 20 of the vehicle 12 includes a CPU (Central Processing Unit: processor) 24, a ROM (Read Only Memory) 26, a RAM (Random Access Memory) 28, a storage 30, a communication interface (communication I / F) 32, and an input / output interface (input / output I / F) 34. Each component is connected to each other via an internal bus 35 so as to be able to communicate with each other.

[0035] The CPU 24 is a central processing unit that executes various programs and controls each part. That is, the CPU 24 reads the programs from the ROM 26 or the storage 30, and executes the programs using the RAM 28 as a working area. The CPU 24 also controls each of the above components and performs various arithmetic processing according to the programs recorded in the ROM 26 or the storage 30.

[0036] The ROM 26 stores various programs and various data. The RAM 28 temporarily stores programs or data as a working area. The storage 30 is a non-temporary recording medium configured with an HDD (Hard Disk Drive) or an SSD (Solid State Drive) and stores various programs including an operating system and various data.

[0037] The communication I / F 32 is an interface for the vehicle 12 to communicate with the vehicle display device 22, an external server, and other devices, and uses standards such as CAN (Controller Area Network), Ethernet (registered trademark), LTE (Long Term Evolution), FDDI (Fiber Distributed Data Interface), and Wi-Fi (registered trademark).

[0038] A GPS (Global Positioning System) device 36, a front camera 38, a millimeter wave radar 40, a laser radar 42, and a vehicle drive device 44 are connected to the input / output interface 34. The GPS device 36 receives GPS signals from multiple GPS satellites to determine the position of the vehicle. The positioning accuracy of the GPS device 36 improves as the number of GPS signals it can receive increases.

[0039] The forward camera 38 is disposed at the front of the vehicle 12 and captures an image of the area in front of the vehicle. As an example, the forward camera 38 of the present embodiment is configured to capture an image of the foreground including the front end of the vehicle 12, as shown in FIG.

[0040] The millimeter wave radar 40 measures reflected waves of emitted radio waves to detect obstacles around the vehicle 12. The laser radar 42 detects obstacles around the vehicle 12 by scanning with laser light and measuring the reflected light.

[0041] The vehicle driving device 44 drives the vehicle 12 based on a signal input by a passenger or an operator. That is, the vehicle driving device 44 includes a steering actuator, an accelerator actuator, and a brake actuator.

[0042] (Hardware configuration of the vehicle display system 10) Fig. 3 is a block diagram showing a hardware configuration of the vehicular display system 10. As shown in Fig. 3, the vehicular display system 10 includes a vehicular display device 22. The vehicular display device 22 includes a CPU (Central Processing Unit: processor) 52, a ROM (Read Only Memory) 54, a RAM (Random Access Memory) 56, a storage 58, a communication interface (communication I / F) 60, and an input / output interface (input / output I / F) 62. Each component is connected to each other via an internal bus 63 so as to be able to communicate with each other.

[0043] The CPU 52 is a central processing unit that executes various programs and controls each part. That is, the CPU 52 reads a program from the ROM 54 or the storage 58, and executes the program using the RAM 56 as a working area. The CPU 52 controls each of the above components and performs various arithmetic processing according to the program recorded in the ROM 54 or the storage 58.

[0044] The ROM 54 stores various programs and various data. The RAM 56 temporarily stores programs or data as a working area. The storage 58 is configured with an HDD (Hard Disk Drive) or an SSD (Solid State Drive) and stores various programs including an operating system and various data.

[0045] The communication interface 60 is an interface for the remote control device 14 to communicate with the vehicle 12, the server 16, and other devices, and uses standards such as Ethernet (registered trademark), FDDI, and Wi-Fi (registered trademark).

[0046] A display 64, a speaker 66, an input device 68, and a camera 69 are electrically connected to the input / output interface 62. The display 64 displays to the operator an image of the periphery of the vehicle 12 and information on the instruments of the vehicle 12. Note that a plurality of displays 64 may be provided.

[0047] The speaker 66 is a device for outputting voice to an operator, and is used, for example, for communicating with an occupant of the vehicle 12. The input device 68 is a device for the operator to input a remote control signal to the remote control device 14. For example, an input device simulating the cockpit of the vehicle 12 can be used as this input device 68. In this case, the operator can remotely control the vehicle with the feeling of driving an actual vehicle.

[0048] As another input device, a controller that can be held by the operator and has multiple buttons may be applied. Such a controller may have a shape that imitates a controller used in computer games. In this case, even an operator with a disability can remotely control the vehicle 12.

[0049] The camera 69 is disposed facing the operator and captures an image of the operator. Specifically, the camera 69 is configured to capture an image of the operator's face.

[0050] (Functional configuration of the vehicle display device 22) The vehicle display device 22 uses the above hardware resources to realize various functions. The functional configuration realized by the vehicle display device 22 will be described with reference to FIG.

[0051] 4, the vehicle display device 22 includes, as functional components, a vehicle speed information acquisition unit 70, a steering angle information acquisition unit 72, a front image acquisition unit 74, a front image display unit 76, a linear image display unit 77, a highlight display unit 78, and a remote operation control unit 80. Each functional component is realized by the CPU 52 reading and executing a program stored in the ROM 54 or the storage 58.

[0052] The vehicle speed information acquisition unit 70 acquires vehicle speed information of the vehicle 12. Specifically, the vehicle speed information acquisition unit 70 acquires information related to the vehicle speed detected by a vehicle speed sensor (not shown) mounted on the vehicle 12.

[0053] The steering angle information acquisition unit 72 acquires steering angle information of the vehicle 12. Specifically, the steering angle information acquisition unit 72 acquires information about the steering angle detected by a steering angle sensor (not shown) mounted on the vehicle 12.

[0054] The front image acquisition unit 74 acquires image information of an image of the area in front of the vehicle 12. Specifically, the front image acquisition unit 74 acquires image information of the area in front of the vehicle 12 captured by the front camera 38 mounted on the vehicle 12.

[0055] The front image display unit 76 displays an image of the area ahead of the vehicle 12 on the display 64. Specifically, the front image display unit 76 causes the display 64 to display an image of the area ahead of the vehicle 12 acquired by the front image acquisition unit 74.

[0056] The linear image display unit 77 displays a linear image extending forward from the vicinity of the vehicle as a base end in front of the vehicle 12 in a predetermined display area. In this embodiment, the linear image display unit 77 displays a linear image superimposed on the image of the area in front of the vehicle 12 displayed on the display 64. The highlighting unit 78 highlights the tip side of the linear image as the vehicle speed increases. The functions of the linear image display unit 77 and the highlighting unit 78 will be described with reference to the display examples shown in Figs. 5 and 6.

[0057] Fig. 5 shows an example of an image of the front of the vehicle 12 displayed on the display 64. As shown in Fig. 5, the front end of the vehicle 12 is displayed at the bottom of the display 64. In addition, a linear image RL and a linear image LL are displayed from the front end of the vehicle 12 to the front.

[0058] The linear image RL corresponds to the position of the right front wheel of the vehicle 12, and visually displays the right edge of the vehicle 12. The linear image LL corresponds to the position of the left front wheel of the vehicle 12, and visually displays the right edge of the vehicle 12.

[0059] Further, the linear image display unit 77 of the present embodiment is configured to display a linear image CL between the right linear image RL and the left linear image LL. The linear image CL corresponds to the center of the vehicle 12 in the width direction.

[0060] Here, a dense portion RE is displayed on the base end side (near the vehicle 12) of the right linear image RL, and is highlighted by the highlighting portion 78. Also, a dense portion LE is displayed on the base end side (near the vehicle 12) of the left linear image LL, and is highlighted by the highlighting portion 78.

[0061] The dense portion RE is displayed darker than other portions of the linear image RL, and the dense portion LE is displayed darker than other portions of the linear image LL.

[0062] FIG. 6 shows an example of a display of an image of the front of the vehicle 12 displayed on the display 64, and shows a state in which the traveling speed of the vehicle 12 is higher than that shown in FIG. 5. As shown in FIG. 6, when the traveling speed of the vehicle 12 is increased, the highlighting unit 78 moves the dense portion RE to the tip side of the linear image RL, and moves the dense portion LE to the tip side of the linear image LL. Specifically, the highlighting unit 78 displays the dense portion RE on the linear image RL based on the display coordinates of the dense portion RE that are set in advance according to the speed of the vehicle 12. Similarly, the highlighting unit 78 displays the dense portion LE on the linear image LL based on the display coordinates of the dense portion LE that are set in advance according to the speed of the vehicle 12. In this way, in this embodiment, the highlighting unit 78 highlights the tip sides of the linear images RL and LL so that they become darker as the traveling speed of the vehicle 12 increases.

[0063] The highlighting unit 78 may move the dense parts RE, LE in a stepwise manner or may move them continuously in response to a change in vehicle speed. For example, when moving the dense parts RE, LE in a stepwise manner, the linear images RL, LL may be divided into a plurality of regions from their tips to their base ends, and a corresponding vehicle speed range may be set for each region.

[0064] 4, the remote operation control unit 80 is a function for controlling the remote operation of the vehicle 12. Specifically, the remote operation control unit 80 has a function for detecting information about the surroundings of the vehicle 12 based on information acquired from sensors such as the millimeter wave radar 40 and the laser radar 42.

[0065] Furthermore, when a predetermined condition is satisfied and remote operation by the vehicle display device 22 outside the vehicle is permitted, the remote operation control unit 80 drives the vehicle 12 based on the received remote operation signal. That is, the vehicle display device 22 drives the vehicle 12 by controlling the vehicle drive device 44 based on the remote operation signal.

[0066] (action) Next, the operation of this embodiment will be described.

[0067] (Display processing) An example of the display process by the vehicle display device 22 will be described with reference to the flowchart shown in Fig. 7. This display process is executed by the CPU 52 reading out a display program from the ROM 54 or the storage 58, expanding it in the RAM 56, and executing it.

[0068] In step S102, the CPU 52 acquires image information of the area ahead of the vehicle 12. Specifically, the CPU 52 acquires image information of the area ahead of the vehicle 12 captured by the front camera 38 through the function of the front image acquisition unit 74.

[0069] In step S104, the CPU 52 displays an image of the area in front of the vehicle and a linear image on the display 64. Specifically, the CPU 52 uses the function of a forward image display unit 76 to display an image captured by the forward camera 38 on the display 64. In addition, the CPU 52 uses the function of a linear image display unit 77 to display linear images RL and LL on the display 64.

[0070] The CPU 52 acquires vehicle speed information in step S106. Specifically, the CPU 52 acquires vehicle speed information detected by the vehicle speed sensor through the function of the vehicle speed information acquisition unit 70.

[0071] In step S108, the CPU 52 displays the dense portion on the display 64. Specifically, the CPU 52 displays the dense portion RE superimposed on a position on the linear image RL corresponding to the vehicle speed by using the function of the highlighting unit 78. The CPU 52 also displays the dense portion LE superimposed on a position on the linear image LL corresponding to the vehicle speed.

[0072] In step S110, the CPU 52 determines whether the vehicle speed has changed by a predetermined value or more. Specifically, the CPU 52 acquires vehicle speed information of the vehicle 12 at predetermined intervals using the vehicle speed information acquisition unit 70, and if the vehicle speed has changed by the predetermined value or more, the result of step S110 is affirmative and the process proceeds to step S112. On the other hand, if the vehicle speed has not changed by the predetermined value or more in step S110, the CPU 52 returns to the process of step S108 and displays the dense parts RE, LE in the same positions. In other words, if the vehicle speed has not changed by the predetermined value or more, the positions of the dense parts RE, LE do not move.

[0073] The CPU 52 moves the positions of the dense parts RE, LE in step S112. Specifically, the CPU 52 moves the dense parts RE, LE toward the tip side of the linear images RL, LL as the vehicle speed increases by using the function of the highlighting unit 78. Then, the CPU 52 ends the display process.

[0074] As described above, in the vehicle display device 22 according to this embodiment, linear images RL, LL extending from the vicinity of the vehicle toward the front side of the vehicle are displayed in front of the vehicle 12 as shown in Fig. 5 and Fig. 6. Furthermore, when the vehicle speed is low, the linear images RL, LL are displayed with the vehicle side emphasized, and as the vehicle speed of the vehicle 12 increases, the tip side of the linear images RL, LL is emphasized. This allows the driver's line of sight looking at the linear images RL, LL to be guided to the emphasized tip side as the vehicle speed increases, even when the linear images RL, LL are displayed in front of the vehicle.

[0075] In this embodiment, an image of the area ahead of the vehicle is displayed on the display 64, and the linear images RL and LL are superimposed on the image, so that the line of sight of the driver looking at the image can be directed to an appropriate position according to the speed. In other words, the driver outside the vehicle 12 can intuitively recognize the traveling speed of the vehicle 12.

[0076] In particular, in this embodiment, when the speed of the vehicle 12 increases, the dense parts RE, LE move toward the tip side of the linear images RL, LL. Here, since the line of sight is generally guided to dark colors rather than light colors, the driver's line of sight can be guided in an appropriate direction by the visual effect.

[0077] In this embodiment, the highlighting unit 78 displays the linear images RL and LL superimposed on the dense parts RE and LE, but is not limited to this. For example, the configuration of the first modified example shown in Fig. 8 and Fig. 9 and the configuration of the second modified example shown in Fig. 10 and Fig. 11 may be adopted.

[0078] (First Modification) As shown in Fig. 8, in this modified example, the linear images RL and LL are displayed transparently or in a light color that is barely visible. The highlighting unit 78 displays the base end sides of the linear images RL and LL in highlighting color parts RE and LE. The highlighting color parts RE and LE are a different color from the linear images RL and LL, and the highlighting color parts RE and LE in this modified example are a contrasting color to the linear images RL and LL. When the linear images RL and LL are displayed transparently, the highlighting unit 78 may display the highlighting color parts RE and LE in a highly saturated color.

[0079] 9, when the vehicle speed increases, the highlighting unit 78 displays the tip side of the linear images RL, LL in a more highlighted color than the base side. That is, the highlighting color parts RE, LE are moved toward the tip side of the linear images RL, LL by the highlighting unit 78. When the linear images RL, LL are displayed transparently, the highlighting color parts RE, LE are displayed as if they are moving away from the vehicle 12 as seen by the driver.

[0080] As described above, in this modified example, when the speed of the vehicle 12 increases, the highlight color parts RE, LE in the linear images RL, LL move toward the tip side. Since the driver's line of sight is generally guided to the highlight color, the driver's line of sight can be guided in an appropriate direction by the visual effect.

[0081] (Second Modification) 10, in this modified example, the linear images RL and LL are not displayed, and only the linear image CL is displayed by the linear image display unit 77. In addition, the dense part CE highlighted by the highlighting unit 78 is displayed on the base end side (near the vehicle 12) of the linear image CL.

[0082] As shown in FIG. 11, when the vehicle speed increases, the highlighting unit 78 displays a dense portion CE on the tip side of the linear image CL.

[0083] As described above, in this modified example, since only one linear image CL is displayed, the display area of ​​the linear image can be reduced compared to the other embodiments.

[0084] <Second embodiment> Next, a vehicular display system 90 according to a second embodiment will be described with reference to the drawings. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0085] The vehicle display system 90 of the present embodiment includes a vehicle display device 92 instead of the driving control unit 20. Here, the vehicle of the present embodiment does not include a remote operation mode (remote driving mode) and is different from the first embodiment in that it is installed in the vehicle.

[0086] The vehicle display device 92, like the driving control unit 20 (see FIG. 2), is configured to include a CPU 24, a ROM 26, a RAM 28, a storage 30, a communication interface 32, and an input / output interface 34. In addition, a GPS device 36, a front camera 38, a millimeter wave radar 40, a laser radar 42, and a HUD (Head-Up Display) device 94 are connected to the input / output interface 34.

[0087] The HUD device 94 is disposed, for example, on the vehicle front side of an instrument panel (not shown) and is configured to project a predetermined image onto the windshield glass. Therefore, the image displayed by the HUD device 94 is superimposed on the foreground seen through the windshield glass.

[0088] The functional configuration of the vehicle display device 92 is as shown in Fig. 4, similarly to the first embodiment, but does not have to include the functions of the front image acquisition unit 74, the front image display unit 76, and the remote operation control unit 80. The HUD device 94 of this embodiment displays a linear image and a dense portion on the windshield glass by the functions of the linear image display unit 77 and the highlighting unit 78. Therefore, in this embodiment, the linear image and the dense portion are displayed superimposed on the foreground of the vehicle as seen by the occupant.

[0089] As described above, in this embodiment, the line of sight of the occupant can be guided in an appropriate direction according to the traveling speed of the vehicle. Also, the structure can be simplified compared to the case where the present embodiment is applied to a vehicle equipped with a remote control mode.

[0090] In this embodiment, the image is projected onto the windshield glass using the HUD device 94, but the present invention is not limited to this and may be displayed on another display inside the vehicle. For example, the view in front of the vehicle may be displayed on the meter display panel, center display, or the like, and the linear image and dense portion may be superimposed on this view.

[0091] The above describes the vehicular display system 10 and the vehicular display device 22 according to the first and second embodiments, but it goes without saying that the present invention can be embodied in various forms without departing from the gist of the present invention. For example, in the above embodiment, the linear image display unit 77 displays the linear image RL and the linear image LL with a predetermined length regardless of the speed of the vehicle 12, but is not limited to this. That is, the length of the linear image RL and the linear image LL may be changed according to the speed of the vehicle 12. As an example, the linear image RL and the linear image LL may be displayed longer as the speed of the vehicle 12 increases. Also, the linear image RL and the linear image LL may be displayed shorter as the speed of the vehicle 12 decreases, and the display of the linear image RL and the linear image LL may be turned off when the vehicle speed becomes zero.

[0092] In the above embodiment, the linear image display unit 77 displays an image in a substantially straight line regardless of the behavior of the vehicle 12, but the present invention is not limited to this. For example, the linear image display unit may be configured to curve the linear image along a trajectory according to the steering angle of the vehicle 12. In this case, the driver can easily predict the traveling direction of the vehicle 12 by looking at the linear image.

[0093] Furthermore, the highlighting unit 78 may highlight the leading edge of the linear image so that the leading edge becomes thicker as the vehicle speed increases. In this case, as the vehicle speed increases, the thicker part of the linear image moves toward the leading edge, so that the visual effect can guide the driver's line of sight in an appropriate direction. [Explanation of symbols]

[0094] 10, 90 Vehicle display system 12 Vehicles 22, 92 Vehicle display device 64 Display RL, LL, CL Linear images

Claims

1. a processor, the processor comprising: Acquire vehicle speed information, a linear image extending forward from a base end near the vehicle in a predetermined display area in front of the vehicle, and the linear image is highlighted so that the tip end becomes darker as the vehicle speed increases; Vehicle display device.

2. A processor, the processor comprising: Acquire vehicle speed information, a linear image extending forward from a base end near the vehicle in a predetermined display area in front of the vehicle, and a tip end side of the linear image is displayed in a more emphasized color than a base end side as the vehicle speed increases; Vehicle display device.

3. A processor, the processor comprising: Acquire vehicle speed information, a linear image extending from a base end near the vehicle toward the front side of the vehicle is displayed in a predetermined display area in front of the vehicle, and the tip side of the linear image is highlighted so as to become thicker as the vehicle speed increases; Vehicle display device.

4. A processor, the processor comprising: Acquire vehicle speed information, a pair of linear images extending forward from a base end near the vehicle in a predetermined display area are displayed in positions corresponding to both ends in a width direction of the vehicle, the linear images being displayed so that the length of the linear images increases as the vehicle speed increases, and the linear images are curved along a trajectory corresponding to the steering angle of the vehicle; Vehicle display device.

5. A vehicle display device according to any one of claims 1 to 4, a display provided inside or outside the vehicle cabin, on which an image of the front of the vehicle and the linear image are displayed; A display system for a vehicle.

6. Acquire vehicle speed information, a linear mark extending from the vehicle side in the traveling direction is displayed in a predetermined display area ahead of the vehicle, and the tip side of the mark is highlighted so as to become darker as the vehicle speed increases; Vehicle display method.

7. Acquire vehicle speed information, a linear mark extending from the vehicle side in the traveling direction is displayed in a predetermined display area ahead of the vehicle, and the tip side of the mark is highlighted so as to become darker as the vehicle speed increases; A program that causes a computer to carry out processing.

Images