Vehicle display device and display control method

Abstract

To provide a vehicle display device that can reduce influence on driving of a driver of another vehicle existing around an own vehicle while improving the advertising effect of displayed contents.SOLUTION: A vehicle display device 11 comprises: a display unit 16 which is provided in an own vehicle 10 and on which a display content G1 that is visible from at least one other vehicle Mn existing around the own vehicle is displayed; and a determination unit 14 that adjusts the display content displayed on the display unit on the basis of a determination result. The determination unit determines an automatic driving level of the other vehicle, and makes the display unit display a first display content G3 generated by adjusting the displayed content in accordance with a manual driving level included in the automatic driving level.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vehicle display device capable of displaying display content on the outside of a vehicle and a display control method. [Background technology]

[0002] Patent Document 1 describes a vehicle that displays advertising-effective display content on a display unit provided on the vehicle. The vehicle described in Patent Document 1 includes a display unit provided on the exterior surface of the vehicle that displays advertisements, and a control unit that controls the display mode of the display content on the display unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-157678 A Summary of the Invention [Problem to be solved by the invention]

[0004] According to the technology described in Patent Document 1, when a driver of another vehicle traveling around the vehicle looks closely at the display content, there is a risk that the driving of the other vehicle will be affected.

[0005] The present invention aims to provide a vehicle display device and a display control method that can improve the advertising effectiveness of the displayed content while reducing the impact on the driving of drivers of other vehicles around the vehicle. [Means for solving the problem]

[0006] One aspect of the present invention is a vehicle display device that includes a display unit provided in a host vehicle and that displays display content visible to at least one other vehicle surrounding the host vehicle, and a judgment unit that adjusts the display content displayed on the display unit based on a judgment result, wherein the judgment unit judges the autonomous driving level of the other vehicle and causes the display unit to display a first display content in which the display content is adjusted according to the degree of manual driving included in the autonomous driving level. Effect of the Invention

[0007] According to the present invention, it is possible to improve the advertising effectiveness of the displayed content while reducing the influence on the driving of drivers of other vehicles present around the vehicle. [Brief description of the drawings]

[0008] [Figure 1] 1 is a block diagram showing a configuration of a vehicle display device according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a diagram showing the position of a display unit provided in a host vehicle. [Diagram 3] FIG. 2 is a diagram showing the positional relationship between a host vehicle and other vehicles traveling on a plurality of lanes. [Figure 4] FIG. 4 is a diagram showing display contents displayed on a display unit. [Diagram 5] 4 is a flowchart showing a process flow of a display control method executed in the vehicle display device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] 1, the vehicle 10 is configured to be able to communicate with at least one other vehicle Mn (n: any natural number) present in the vicinity based on vehicle-to-vehicle communication. The vehicle 10 is equipped with a vehicle display device 11 for displaying display contents such as advertisements to the other vehicles Mn. The vehicle display device 11 is equipped with, for example, a detection unit 12 that acquires data necessary for driving, a determination unit 14 that executes a determination process using the detection data acquired by the detection unit 12, a display unit 16 that displays the display contents adjusted by the determination unit 14, and a storage unit 18 that stores predetermined data.

[0010] The detection unit 12 is configured with, for example, a communication interface capable of wireless communication with the other vehicle Mn, and sensors for acquiring information about the surroundings of the vehicle 10. The detection unit 12 performs vehicle-to-vehicle communication with the other vehicle Mn via the communication interface to acquire data related to the other vehicle Mn. The detection unit 12 may communicate with the other vehicle Mn via a network W. The detection unit 12 acquires data related to the traveling state of the other vehicle Mn, for example, via the communication interface. The data related to the traveling state includes, for example, an autonomous driving level for performing autonomous traveling, data related to a traveling mode for performing traveling assistance, and position data of the other vehicle Mn.

[0011] The autonomous driving level is defined, for example, in a predetermined stage, and the degree of manual driving included in each stage and the driving area corresponding to each stage are set. For example, various functions that support the driving of the vehicle are set in the driving mode, and functions such as following driving that follows the vehicle, deviation prevention support that prevents deviation from the lane, and rear-end collision prevention support are set.

[0012] The detection unit 12 acquires information about the surroundings of the vehicle 10 using sensors such as a camera sensor, a LiDAR (Light Detection And Ranging) sensor, and a position sensor. The detection unit 12 is configured to be able to detect a detection target using a single sensor or a combination of one or more sensors. The camera sensor captures images of the surroundings of the vehicle 10, including the road environment on which the vehicle 10 is traveling and traffic participants such as vehicles and pedestrians around the vehicle 10, and acquires image data.

[0013] The LiDAR sensor uses radar waves to scan the surroundings of the vehicle 10 and acquires three-dimensional (3D) data of objects such as traffic participants including other vehicles Mn, structures, and obstacles. The position sensor includes, for example, a GPS (Global Positioning System) sensor, and acquires current position data of the vehicle 10 based on communication with a positioning satellite. The detection unit 12 may be configured with sensors other than the above sensors as long as it is possible to acquire information on the running state of the vehicle 10 and the surroundings of the vehicle 10.

[0014] The determination unit 14 is configured with one or more CPUs (Central Processing Units) and their peripheral circuits. The determination unit 14 may further include an arithmetic circuit that executes logical operations or numerical operations. The determination unit 14 executes various processes based on computer programs stored in the storage unit 18.

[0015] The determination unit 14 performs a determination process based on the data detected by the detection unit 12. The determination unit 14 adjusts the display content displayed on the display unit 16 based on the determination result. The determination unit 14 determines the autonomous driving level of the other vehicle Mn, for example, based on the data detected by the detection unit 12. The determination unit 14 causes the display unit 16 to display a first display content in which the display content is adjusted according to the degree of manual driving included in the autonomous driving level.

[0016] The storage unit 18 is configured with a storage medium such as a hard disk drive or a flash memory that stores data and programs required for processing by the determination unit 14. The storage unit 18 may be provided in a server device 100 connected to a network W. The determination unit 14 may be provided with data from the server device 100 via the network W. The display unit 16 is provided at a predetermined position of the vehicle 10. The display unit 16 displays display content that is visible from at least one other vehicle Mn present around the vehicle 10. The display unit 16 is configured with a display device such as a liquid crystal display that can display images. The display unit 16 may also be used with a projection device that projects an image onto the road surface. The display unit 16 is controlled by the determination unit 14 and displays the display content.

[0017] 2, the display unit 16 is configured with, for example, a plurality of display devices. The plurality of display devices are provided at different positions in the host vehicle 10 that are visible from the outside.

[0018] A first display unit 16A is provided on the rear surface 10A of the vehicle 10, the first display unit 16A being visible toward the rear surface 10A (rear) of the vehicle 10. The first display unit 16A is provided, for example, on the rear surface 10A of the vehicle 10. The first display unit 16A may be provided at a predetermined position inside the vehicle that is visible from outside the vehicle through the rear window. A second display unit 16B is provided on the left side surface 10B of the vehicle 10, the second display unit 16B being visible toward the left side surface 10B of the vehicle 10. The second display unit 16B may be divided according to the number of doors provided on the left side surface 10B of the vehicle 10.

[0019] A third display unit 16C that is visible toward the right side surface 10C of the vehicle 10 is provided on the right side surface 10C of the vehicle 10. The third display unit 16C may be divided according to the number of doors provided on the right side surface 10C of the vehicle 10. The number and positions of the display units 16 described above are examples, and the display units 16 may be configured in different numbers and arranged in different positions as long as they are visible from outside the vehicle 10. The display units 16 may be formed in any shape and number depending on the type, shape, and installation position of the vehicle 10.

[0020] The first display unit 16A, the second display unit 16B, and the third display unit 16C display the same display content. The first display unit 16A, the second display unit 16B, and the third display unit 16C may display different information depending on the installation positions visible from other vehicles Mn.

[0021] FIG. 3 shows a road R with multiple lanes. The road R includes, for example, a first lane R1 on which the vehicle 10 travels, and a second lane R2 and a third lane R3 adjacent to the first lane R1. The second lane R2 is adjacent to the left side of the first lane R1, for example. The third lane R3 is adjacent to the right side of the first lane R1, for example. Behind the vehicle 10 traveling on the first lane R1, another vehicle M1 travels. On the second lane R2, for example, another vehicle M2 travels. On the third lane R3, for example, another vehicle M3 travels.

[0022] The determination unit 14 recognizes the road environment around the host vehicle 10 based on, for example, imaging data captured by a camera sensor included in the detection unit 12. The determination unit 14 recognizes the shape of the road R on which the host vehicle 10 is traveling, the number of lanes, and the lane on which the host vehicle 10 is traveling based on the imaging data. The determination unit 14 recognizes the positional relationship between the lanes on the road R and the host vehicle. The determination unit 14 determines other vehicles Mn present around the host vehicle 10 based on three-dimensional data acquired by a LiDAR sensor included in the detection unit 12, and generates position information of the other vehicles Mn traveling around the host vehicle 10. The determination unit 14 recognizes the relative positional relationship between the host vehicle 10 and the other vehicles Mn based on the positional information of the other vehicles Mn and the positional information of the host vehicle 10. The determination unit 14 may compensate for the relative positional relationship between the host vehicle 10 and the other vehicles Mn using the positional data of the other vehicles Mn acquired by the detection unit 12.

[0023] The determination unit 14 acquires data on the autonomous driving levels of the other vehicles M1 to M3 based on the inter-vehicle communication by the detection unit 12. The determination unit 14 determines the autonomous driving level of the other vehicle Mn, for example, based on the autonomous driving level data. The determination unit 14 determines, for example, whether the degree of manual driving included in the stages of the autonomous driving level is equal to or higher than a threshold. The degree of manual driving indicates the degree to which the driver of the other vehicle Mn intervenes in the driving of the other vehicle Mn. The higher the degree of manual driving, the lower the degree of autonomous driving of the driver with respect to the driving of the other vehicle Mn, and the higher the degree of responsibility of the driver for the driving. The lower the degree of manual driving, the higher the degree of autonomous driving of the driver with respect to the driving of the other vehicle Mn, and the lower the degree of responsibility of the driver for the driving.

[0024] When the degree of manual driving is less than the threshold, the determination unit 14 determines that the degree of autonomous driving of the other vehicle Mn is high, and causes the display unit 16 to display the display content. When the degree of manual driving is less than the threshold based on the determination result of the autonomous driving level, the determination unit 14 determines that the driving of the other vehicle Mn will not be affected even if the driver of the other vehicle Mn looks closely, and causes the display content to be displayed on the display unit 16. The display content is, for example, an electronic advertisement based on an image or video displayed on the display unit 16. The display content may include a two-dimensional code or a uniform resource locator (URL) of a website that leads to the contact information of an advertiser.

[0025] The determination unit 14 may acquire attribute data of passengers of the other vehicles M1 to M3 based on the vehicle-to-vehicle communication by the detection unit 12, select display content according to the attribute data, and display the selected display content on the display unit 16. When the degree of manual driving is equal to or greater than a threshold, the determination unit 14 causes the display unit 16 to display a first display content with adjusted display content. When the degree of manual driving is equal to or greater than a threshold based on the determination result of the autonomous driving level, the determination unit 14 determines that the driving of the other vehicle Mn will be affected if the driver of the other vehicle Mn looks at the display content, and causes the display unit 16 to display a first display content with restricted display content. The first display content is, for example, a screen display on the display unit 16 with the display content erased, or a screen display that does not include information such as characters and is generated so as to be less likely to be looked at by the driver.

[0026] The determination unit 14 adjusts the display content based on the positional relationship of other vehicles Mn around the host vehicle 10. For the multiple display devices (first display unit 16A, second display unit 16B, third display unit 16C) provided at multiple different positions on the host vehicle 10, the determination unit 14 causes the multiple display devices provided at multiple different positions on the host vehicle 10 to display display content corresponding to the autonomous driving level, based on the positional relationship of the other vehicles Mn.

[0027] Even if the driver of the other vehicle M1 traveling following the host vehicle 10 on the first lane R1 is in a state where the degree of manual driving is high in terms of the autonomous driving level, the driver drives the other vehicle M1 while paying close attention to the leading host vehicle 10. For example, the determination unit 14 displays display content on the first display unit 16A installed on the back surface 10A side (rear side) of the host vehicle 10 for the other vehicle M1 traveling following the host vehicle 10 on the first lane R1, regardless of the autonomous driving level.

[0028] Regardless of the autonomous driving level, when the display content is being displayed on the first display unit 16A, the determination unit 14 displays the second display content, which indicates a warning, at a predetermined timing. The second display content is, for example, an image display including text information such as "Watch carefully."

[0029] For example, the determination unit 14 determines the autonomous driving level of another vehicle M2 traveling parallel to the host vehicle 10 in the second lane R2. When the degree of manual driving is less than a threshold based on the determination result of the autonomous driving level of the other vehicle M2, the determination unit 14 causes the second display unit 16B to display the display content. When the degree of manual driving is equal to or greater than a threshold based on the determination result of the autonomous driving level of the other vehicle M2, the determination unit 14 causes the second display unit 16B to display the first display content with the display content restricted.

[0030] The determination unit 14 determines the distance between the host vehicle 10 and the other vehicle Mn based on the detection result of the detection unit 12, and displays the display content or the first display content according to the distance between the host vehicle 10 and the other vehicle Mn.

[0031] The determination unit 14 determines the length of the distance between the host vehicle 10 and the other vehicle M2 based on the detection result of the position of the other vehicle M2. The determination unit 14 determines whether the other vehicle M2 is traveling at a position behind the host vehicle 10 and the second display unit 16B is within the field of view of the driver of the other vehicle M2 based on the position of the other vehicle M2 and the length of the distance between the host vehicle 10 and the other vehicle M2. When the determination unit 14 determines that the other vehicle M2 is traveling at a position behind the host vehicle 10 and the second display unit 16B is not within the field of view of the driver of the other vehicle M2, the determination unit 14 may cause the second display unit 16B to display the display content even if the degree of manual driving is equal to or higher than a threshold value.

[0032] If the judgment unit 14 determines, based on the judgment result of the position of the other vehicle M2 and the distance between the host vehicle 10 and the other vehicle M2, that the other vehicle M2 is traveling at a position rearward of the host vehicle 10 and the first display unit 16A is within the field of view of the driver of the other vehicle M2, the judgment unit 14 may cause the first display unit 16A to display a first display content with limited display content.

[0033] Similarly, the determination unit 14 determines the autonomous driving level of another vehicle M3 traveling parallel to the host vehicle 10 in the third lane R3, for example. When the degree of manual driving is less than a threshold based on the determination result of the autonomous driving level of the other vehicle M3, the determination unit 14 causes the third display unit 16C to display the display content. When the degree of manual driving is equal to or greater than a threshold based on the determination result of the autonomous driving level of the other vehicle M3, the determination unit 14 causes the third display unit 16C to display the first display content with the display content restricted.

[0034] The determination unit 14 determines the length of the distance between the host vehicle 10 and the other vehicle M3 based on the detection result of the position of the other vehicle M3. The determination unit 14 determines whether the other vehicle M3 is traveling at a position behind the host vehicle 10 and the third display unit 16C is within the field of view of the driver of the other vehicle M3. When the determination unit 14 determines that the other vehicle M3 is traveling at a position behind the host vehicle 10 and the third display unit 16C is not within the field of view of the driver of the other vehicle M3, the determination unit 14 may cause the third display unit 16C to display the display content even if the degree of manual driving is equal to or greater than a threshold value.

[0035] If the judgment unit 14 determines, based on the judgment result of the position of the other vehicle M3 and the distance between the host vehicle 10 and the other vehicle M3, that the other vehicle M3 is traveling at a position rearward of the host vehicle 10 and the first display unit 16A is within the field of view of the driver of the other vehicle M3, the judgment unit 14 may cause the first display unit 16A to display a first display content with limited display content.

[0036] According to the vehicle display device 11, the display content displayed on the display unit 16 is adjusted based on the autonomous driving level of the other vehicle Mn, and the display content is displayed on the display unit 16 without affecting the driving of the driver of the other vehicle Mn, thereby improving the effectiveness of advertising. According to the vehicle display device 11, the display content displayed on the display unit 16 is adjusted based on the autonomous driving level and position of the other vehicle Mn, and the display content is displayed on the display unit 16 without affecting the driving of the driver of the other vehicle Mn, thereby improving the effectiveness of advertising.

[0037] The determination unit 14 may adjust the display content displayed on the display unit 16 based on the traveling state of the other vehicle Mn. When the other vehicle Mn is stopped, the driver of the other vehicle Mn is not driving, so the display content can be displayed on the display unit 16. The determination unit 14 determines whether the other vehicle Mn is stopped or not based on the detection result of the detection unit 12. When the determination unit 14 determines that the other vehicle Mn is stopped, it causes the display unit 16 to display the display content.

[0038] According to the vehicle display device 11, when the other vehicle Mn is stopped, the advertising effectiveness can be improved by displaying the display content on the display unit 16 without affecting the driving of the driver of the other vehicle Mn.

[0039] The determination unit 14 may adjust the display content displayed on the display unit 16 based on the driving mode of the other vehicle Mn. The determination unit 14 determines the driving mode of the following other vehicle M1 based on, for example, the detection result of the detection unit 12. For example, when the other vehicle M1 is driving in a driving mode of following the vehicle 10, the driver of the other vehicle M1 is less responsible for the driving, and the display content can be displayed on the first display unit 16A. When the determination unit 14 determines that the following other vehicle M1 is driving in a driving mode of following the vehicle 10, the display content is displayed on the first display unit 16A regardless of the autonomous driving level of the other vehicle M1.

[0040] The determination unit 14 may display the display content on the second display unit 16B even when the other vehicle M2 is traveling in the following driving mode in the second lane R2. Similarly, the determination unit 14 may display the display content on the third display unit 16C even when the other vehicle M3 is traveling in the following driving mode in the third lane R3.

[0041] According to the vehicle display device 11, when another vehicle Mn is traveling in a following driving mode in which the other vehicle Mn follows the vehicle 10, the advertising effectiveness can be improved by displaying the display content on the display unit 16 without affecting the driving of the driver of the other vehicle Mn.

[0042] If the judgment unit 14 cannot determine the autonomous driving level of the other vehicle Mn based on the detection result of the detection unit 12, it determines that the other vehicle Mn is a manually driven vehicle and displays a first display content with restricted display content on the display unit 16.

[0043] According to the vehicle display device 11, when the other vehicle Mn cannot determine the autonomous driving level of the host vehicle 10, the display content is displayed on the display unit 16, thereby reducing the impact on the driver's driving.

[0044] FIG. 4(1) shows the display content G1 displayed on the display unit 16. The display content G1 includes advertising content such as text information. The display content G1 may be a static image or a dynamic image. FIG. 4(2) shows the second display content G2 displayed at a predetermined timing while the display content G1 is being displayed. The second display content G2 includes content that calls attention based on text information or the like. The second display content G2 may be a static image or a dynamic image.

[0045] FIG. 4(3) shows the first display content G3 displayed on the display unit 16. The first display content G3 includes a screen display with the display content erased, etc. The first display content G3 may be a static image or a dynamic image. By appropriately displaying the display content G1, the second display content G2, and the first display content G3, the determination unit 14 can reduce the influence on the driving of the driver of the other vehicle Mn while improving the advertising effect of the display content G1.

[0046] FIG. 5 shows a process flow of a display control method executed in the vehicle display device 11. The display control method is executed based on a computer program installed in each component of the vehicle display device 11. The determination unit 14 generates display content visible from at least one other vehicle Mn present around the vehicle 10, and displays it on the display unit 16 (step S100). The determination unit 14 communicates with the other vehicle Mn and determines the autonomous driving level of the other vehicle Mn (step S102). The determination unit 14 determines whether the degree of manual driving included in the autonomous driving level of the other vehicle Mn is equal to or greater than a threshold (step S104). If the degree of manual driving included in the autonomous driving level is less than the threshold, the determination unit 14 displays a first display content with the display content adjusted on the display unit 16 (step S106). If the degree of manual driving included in the autonomous driving level is equal to or greater than the threshold, the determination unit 14 returns the process to step S100, and continues to display the display content on the display unit 16.

[0047] In the above-described embodiment, the determination unit 14 may be provided not only in the host vehicle 10 but also in the server device 100. In this case, the determination unit 14 may determine the autonomous driving level of the other vehicle Mn based on the detection data acquired by the detection unit 12 via the network W, and may cause the display unit 16 to display the first display content G3 according to the degree of manual driving included in the autonomous driving level. The computer program executed in each component of the vehicle display device 11 may be provided in a form recorded on a computer-readable portable recording medium such as a semiconductor memory, a magnetic recording medium, or an optical recording medium. [Explanation of symbols]

[0048] 10 Vehicle 11 Vehicle display device 12 Detection section 14 Judgment section 16 Display 16A 1st display section 16B 2nd display section 16C 3rd display 18 Memory section G1 Display contents G2 2nd display content G3 1st display content Mn Other vehicles R road R1 1st lane R2 2nd lane R3 3rd lane W Network

Claims

1. A display unit that is provided in the host vehicle and displays display content that is visible from at least one other vehicle that exists around the host vehicle; A determination unit that adjusts the display content displayed on the display unit based on a determination result, The determination unit determines an autonomous driving level of the other vehicle, displaying on the display unit a first display content in which the display content is adjusted according to a degree of manual driving included in the autonomous driving level; Vehicle display device.

2. When the determination unit determines that the driver of the other vehicle is not affected by the display content based on a detection result of the position of the other vehicle, the determination unit causes the display content to be displayed on the display unit. The vehicle display device according to claim 1 .

3. The determination unit causes the display unit to display the display content when the other vehicle is stopped. The vehicle display device according to claim 1 .

4. When the determination unit determines that the following other vehicle is in a driving mode in which the other vehicle follows the host vehicle, the determination unit causes the display unit to display the display content regardless of the autonomous driving level. The vehicle display device according to claim 1 .

5. The computer generating display content visible from at least one other vehicle present around the host vehicle, and displaying the display content on a display unit provided on the host vehicle; Determining the autonomous driving level of the other vehicle; Based on the result of the judgment, according to the degree of manual driving included in the autonomous driving level, causing the display unit to display the first display content obtained by adjusting the display content; Display control method.

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