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 and a display control method capable of displaying display content outside the vehicle.

Background Art

[0002] Patent Document 1 describes a vehicle that displays display content having an advertising effect on a display unit provided on the vehicle. The vehicle described in Patent Document 1 includes a display unit provided on the outer surface of the vehicle for displaying an advertisement, and a control unit for controlling the display mode of the display content of the display unit.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] According to the technology described in Patent Document 1, when a driver of another vehicle running around the vehicle gazes at the display content, there is a risk of affecting the driving of the other vehicle.

[0005] An object of the present invention is to provide a vehicle display device and a display control method that can improve the advertising effect of display content while reducing the influence on the driving of drivers of other vehicles existing around the own vehicle.

Means for Solving the Problems

[0006] One aspect of the present invention is a vehicle display device comprising: a display unit provided on the vehicle and displaying content visible from at least one other vehicle present in the vicinity of the vehicle; and a determination unit that adjusts the content displayed on the display unit based on a determination result, wherein the determination unit determines the autonomous driving level of the other vehicle and causes the display unit to display a first display content adjusted according to the degree of manual driving included in the autonomous driving level. [Effects of the Invention]

[0007] According to the present invention, it is possible to improve the advertising effect of the displayed content while reducing the impact on the driving of drivers of other vehicles in the vicinity of one's own vehicle. [Brief explanation of the drawing]

[0008] [Figure 1] This is a block diagram showing the configuration of a vehicle display device according to an embodiment of the present invention. [Figure 2] This diagram shows the location of the display unit installed on the vehicle. [Figure 3] This diagram shows the relative positions of your vehicle and other vehicles traveling in multiple lanes. [Figure 4] This diagram shows the content displayed on the display unit. [Figure 5] This flowchart shows the processing flow of the display control method executed in a vehicle display device. [Modes for carrying out the invention]

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

[0010] The detection unit 12 is composed of, for example, a communication interface that enables wireless communication with other vehicles Mn, and sensors that acquire information about the surroundings of the vehicle 10. The detection unit 12 communicates with other vehicles Mn via the communication interface and acquires data about other vehicles Mn. The detection unit 12 may also communicate with other vehicles Mn via the network W. The detection unit 12 acquires data about the driving status of other vehicles Mn via the communication interface. The data about the driving status includes, for example, data about the autonomous driving level for autonomous driving, data about the driving mode for driving assistance, and location data of other vehicles Mn.

[0011] Autonomous driving levels are defined, for example, in predetermined stages, with the degree of manual driving included in each stage and the driving area corresponding to each stage set. Driving modes are set with various functions to assist the vehicle's operation, such as adaptive cruise control that follows the vehicle, lane departure prevention assist to prevent the vehicle from deviating from its lane, and collision prevention assist to prevent the vehicle from rear-ending another vehicle.

[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 detect targets using one or more sensors individually or in combination. The camera sensor captures images of the road environment on which the vehicle 10 is traveling, as well as the surrounding conditions including other vehicles and pedestrians, and acquires image data.

[0013] The LiDAR sensor scans the area around the vehicle 10 using radar waves and acquires three-dimensional (3D) data of objects such as other vehicles Mn, traffic participants, structures, and obstacles. The position sensor, for example, is equipped with a GPS (Global Positioning System) sensor and acquires the current position data of the vehicle 10 based on communication with positioning satellites. The detection unit 12 may be composed of sensors other than the above sensors, as long as it can acquire information about the driving state of the vehicle 10 and the area around the vehicle 10.

[0014] The determination unit 14 is composed of one or more CPUs (Central Processing Units) and their peripheral circuits. The determination unit 14 may further have arithmetic circuits that perform logical operations or numerical operations. The determination unit 14 performs various processes based on the computer program 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. Based on the determination result, the determination unit 14 adjusts the display content shown on the display unit 16. For example, the determination unit 14 determines the autonomous driving level of another vehicle Mn based on the data detected by the detection unit 12. The determination unit 14 displays a first display content on the display unit 16, which has been adjusted according to the degree of manual driving included in the autonomous driving level.

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

[0017] As shown in Figure 2, the display unit 16 is composed of, for example, multiple display devices. These multiple display devices are located in different positions within the vehicle 10 that are visible from the outside.

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

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

[0020] The first display unit 16A, the second display unit 16B, and the third display unit 16C display display contents of the same content. Information of different contents may be displayed on the first display unit 16A, the second display unit 16B, and the third display unit 16C according to the installation positions visible from other vehicles Mn.

[0021] FIG. 3 shows a road R provided with a plurality of lanes. On the road R, for example, a first lane R1 on which the host vehicle 10 travels, a second lane R2 and a third lane R3 adjacent to the first lane R1 are provided. 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 host vehicle 10 traveling in the first lane R1, another vehicle M1 is traveling. In the second lane R2, for example, another vehicle M2 is traveling. In the third lane R3, for example, another vehicle M3 is traveling.

[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 in 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 existing 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 position information of the other vehicles Mn and the position information of the host vehicle 10. The determination unit 14 may compensate the relative positional relationship between the host vehicle 10 and the other vehicles Mn using the position 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 other vehicles M1 to M3 based on vehicle-to-vehicle communication by the detection unit 12. The determination unit 14 determines the autonomous driving level of other vehicle Mn based on the autonomous driving level data, for example. The determination unit 14 determines, for example, whether the degree of manual driving included in the autonomous driving level stage is above a threshold. The degree of manual driving indicates the degree to which the driver of other vehicle Mn intervenes in the driving of other vehicle Mn. The higher the degree of manual driving, the lower the degree of autonomous driving by the driver of other vehicle Mn, and the higher the degree of responsibility for the driver's driving. The lower the degree of manual driving, the higher the degree of autonomous driving by the driver of other vehicle Mn, and the lower the degree of responsibility for the driver's driving.

[0024] The determination unit 14 determines that the degree of autonomous driving of the other vehicle Mn is high if the degree of manual driving is below a threshold, and displays the content on the display unit 16. 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 is watching, if the degree of manual driving is below a threshold, and displays the content on the display unit 16. The content displayed is, for example, an electronic advertisement based on an image or video displayed on the display unit 16. The content displayed may also include a QR code or a website URL (Uniform Resource Locator) that directs the user to the advertiser's contact information.

[0025] The determination unit 14 may acquire attribute data of the occupants of other vehicles M1 to M3 based on vehicle-to-vehicle communication by the detection unit 12, select display content according to the attribute data, and display it on the display unit 16. If the degree of manual driving is above a threshold, the determination unit 14 displays a first display content with adjusted display content on the display unit 16. Based on the determination result of the automated driving level, if the degree of manual driving is above a threshold, the determination unit 14 determines that if the driver of another vehicle Mn stares at it, the driving of the other vehicle Mn will be affected, and displays a first display content with restricted display content on the display unit 16. The first display content is, for example, a screen display on the display unit 16 with the display content erased, or a screen display generated so that it is less likely to be stared at by the driver by not including information such as text.

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

[0027] In the first lane R1, the driver of another vehicle M1 following vehicle 10 is driving vehicle M1 while keeping a close eye on the preceding vehicle 10, even if the degree of manual driving is high in the automated driving level. The determination unit 14, for example, displays content on the first display unit 16A installed on the rear side 10A of vehicle 10 for other vehicles M1 following vehicle 10 in the first lane R1, regardless of the automated driving level.

[0028] Regardless of the autonomous driving level, if the first display unit 16A is displaying content, the determination unit 14 will display a second display content indicating a warning at a predetermined timing. The second display content is, for example, an image display that includes text information such as "Attention Required".

[0029] The determination unit 14 determines, for example, the level of automated driving for another vehicle M2 traveling parallel to the vehicle 10 in the second lane R2. Based on the determination result of the automated driving level of the other vehicle M2, if the degree of manual driving is below a threshold, the determination unit 14 displays the content on the second display unit 16B. Based on the determination result of the automated driving level of the other vehicle M2, if the degree of manual driving is above a threshold, the determination unit 14 displays the first display content, which has limited content, on the second display unit 16B.

[0030] The determination unit 14 determines the distance between the 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 vehicle 10 and the other vehicle Mn.

[0031] The determination unit 14 determines the length of the distance between the self-vehicle 10 and the other vehicle M2 based on the detection result of the position of the other vehicle M2. Based on the position of the other vehicle M2 and the length of the distance between the self-vehicle 10 and the other vehicle M2, the determination unit 14 determines whether the other vehicle M2 is traveling at a position behind the self-vehicle 10 and whether the second display unit 16B is in the driver's field of view of the other vehicle M2. If the determination unit 14 determines that the other vehicle M2 is traveling at a position behind the self-vehicle 10 and the second display unit 16B is not in the driver's field of view of the other vehicle M2, it may display the display content on the second display unit 16B even if the degree of manual driving is above a threshold.

[0032] Based on the determination result of the position of the other vehicle M2 and the length of the distance between the self-vehicle 10 and the other vehicle M2, if the determination unit 14 determines that the other vehicle M2 is traveling behind the self-vehicle 10 and that the first display unit 16A is within the driver's field of vision of the other vehicle M2, it may display a limited first display content on the first display unit 16A.

[0033] Similarly, the determination unit 14 determines the level of autonomous driving for another vehicle M3 traveling parallel to the vehicle 10 in the third lane R3, for example. Based on the determination result of the autonomous driving level of the other vehicle M3, if the degree of manual driving is below a threshold, the determination unit 14 displays the content on the third display unit 16C. Based on the determination result of the autonomous driving level of the other vehicle M3, if the degree of manual driving is above a threshold, the determination unit 14 displays the first display content, which has limited content, on the third display unit 16C.

[0034] The determination unit 14 determines the length of the distance between the self-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 self-vehicle 10 and whether the third display unit 16C is within the driver's field of view of the other vehicle M3. If the determination unit 14 determines that the other vehicle M3 is traveling at a position behind the self-vehicle 10 and the third display unit 16C is not within the driver's field of view of the other vehicle M3, it may display the content on the third display unit 16C even if the degree of manual driving is above a threshold.

[0035] Based on the determination result of the position of the other vehicle M3 and the length of the distance between the self-vehicle 10 and the other vehicle M3, the determination unit 14 may, if it determines that the other vehicle M3 is traveling behind the self-vehicle 10 and that the first display unit 16A is within the driver's field of vision of the other vehicle M3, display a limited first display content on the first display unit 16A.

[0036] According to the vehicle display device 11, the display content shown on the display unit 16 can be adjusted based on the autonomous driving level of other vehicles Mn, and the advertising effect can be improved by displaying the content on the display unit 16 without affecting the driving of the driver of other vehicles Mn. According to the vehicle display device 11, the display content shown on the display unit 16 can be adjusted based on the autonomous driving level and position of other vehicles Mn, and the advertising effect can be improved by displaying the content on the display unit 16 without affecting the driving of the driver of other vehicles Mn.

[0037] The determination unit 14 may adjust the display content shown on the display unit 16 based on the driving status of the other vehicle Mn. If 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 or not the other vehicle Mn is stopped based on the detection result of the detection unit 12. If the determination unit 14 determines that the other vehicle Mn is stopped, it displays the display content on the display unit 16.

[0038] According to the vehicle display device 11, when another vehicle Mn is stopped, the display content can be displayed on the display unit 16 without affecting the driving of the driver of the other vehicle Mn, thereby improving the advertising effect.

[0039] The determination unit 14 may adjust the display content shown on the display unit 16 based on the driving mode of the other vehicle Mn. For example, the determination unit 14 determines the driving mode of the following other vehicle M1 based on the detection result of the detection unit 12. For example, if the other vehicle M1 is driving in a follow-up driving mode, following the vehicle 10, the driver of the other vehicle M1 has low responsibility for driving, and the display content can be displayed on the first display unit 16A. If the determination unit 14 determines that the following other vehicle M1 is driving in a follow-up driving mode, it displays the display content on the first display unit 16A regardless of the autonomous driving level of the other vehicle M1.

[0040] The determination unit 14 may also display the content on the second display unit 16B when another vehicle M2 is traveling in the second lane R2 in a follow-drive mode. Similarly, the determination unit 14 may also display the content on the third display unit 16C when another vehicle M3 is traveling in the third lane R3 in a follow-drive mode.

[0041] According to the vehicle display device 11, when another vehicle Mn is driving in a follow-me driving mode in which it follows the vehicle 10, the display content can be displayed on the display unit 16 without affecting the driving of the driver of the other vehicle Mn, thereby improving the advertising effect.

[0042] If the determination 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 limited display content on the display unit 16.

[0043] According to the vehicle display device 11, if another vehicle Mn cannot determine the autonomous driving level of its own vehicle 10, the display content can be shown on the display unit 16 to reduce the impact on the driver's driving.

[0044] Figure 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. Figure 4(2) shows the second display content G2 which is displayed at a predetermined timing while the display content G1 is being displayed. The second display content G2 includes content that indicates a warning based on text information or the like. The second display content G2 may be a static image or a dynamic image.

[0045] Figure 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. The first display content G3 may be a static image or a dynamic image. The determination unit 14 can improve the advertising effect of the display content G1 while reducing the impact on the driving of drivers of other vehicles Mn by appropriately displaying the display content G1, the second display content G2, and the first display content G3.

[0046] Figure 5 shows the processing flow of the display control method executed in the vehicle display device 11. The display control method is executed based on the computer program installed in each component of the vehicle display device 11. The determination unit 14 generates display content that is visible to 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 automated driving level of the other vehicle Mn (step S102). The determination unit 14 determines whether the degree of manual driving included in the automated driving level of the other vehicle Mn is above a threshold (step S104). If the degree of manual driving included in the automated driving level is below the threshold, the determination unit 14 displays the first display content, which has been adjusted, on the display unit 16 (step S106). If the degree of manual driving included in the automated driving level is above the threshold, the determination unit 14 returns to step S100 and continues to display the display content on the display unit 16.

[0047] In the embodiment described above, the determination unit 14 may be provided not only on the vehicle 10 but also on the server device 100 side. In this case, the determination unit 14 may determine the autonomous driving level of other vehicles Mn based on detection data acquired by the detection unit 12 via the network W, and may also display the first display content G3 on the display unit 16 according to the degree of manual driving included in the autonomous driving level. The computer programs executed in each configuration of the vehicle display device 11 may be provided in the form of being 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. Own vehicle 11. Vehicle display device 12 Detection unit 14 Judgment section 16 Display section 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, Lane 1 Route 2, second lane Route 3, 3rd Lane W Network

Claims

1. A display unit provided on the side of the vehicle, which displays content visible from at least one other vehicle in the vicinity of the vehicle, The system includes a determination unit that adjusts the display content shown on the display unit based on the determination result, The determination unit determines the autonomous driving level of the other vehicle, If the degree of manual driving included in the aforementioned automated driving level is above a threshold, the first display content, which has been adjusted, is displayed on the display unit. If the determination unit determines, based on the detection result of the position of the other vehicle, that the display unit is not in the field of view of the driver of the other vehicle, then it will display the display content on the display unit, even if the degree of manual driving is above the threshold. Vehicle display device.

2. The determination unit, if the other vehicle is stopped, causes the display content to be displayed on the display unit. The vehicle display device according to claim 1.

3. If the determination unit determines that the following vehicle is in a driving mode that follows the vehicle, it will display the content on the display unit regardless of the level of autonomous driving. The vehicle display device according to claim 1.

4. Computers The system generates display content that is visible to at least one other vehicle in the vicinity of the vehicle, and displays it on a display unit provided on the side of the vehicle. Determine the autonomous driving level of the other vehicle, Based on the judgment result, if the degree of manual driving included in the automatic driving level is equal to or greater than a threshold, the display unit will display the first display content which has been adjusted from the display content. Based on the detection result of the position of the other vehicle, if it is determined that the display unit is not in the field of view of the driver of the other vehicle, the display content will be displayed on the display unit even if the degree of manual driving is above the threshold. Display control method.

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