CN113448524A - Display control device, vehicle, and display control method - Google Patents

Abstract

The invention provides a display control device, a vehicle and a display control method. The display control device (12) is provided with an approach determination unit (60) and a display control unit (62), wherein the approach determination unit (60) determines whether or not a rear vehicle (95) is approaching the vehicle (10); the display control unit (62) controls display of content in a display area (70) facing the outside of the vehicle (10). When the approach determination unit (60) determines that the rear vehicle (95) is approaching the vehicle (10), the display control unit (62) displays approach information, which is information relating to the approach of the rear vehicle (95) to the vehicle (10), as content in the display area (70). Accordingly, the nearby vehicle located around the preceding vehicle can be appropriately dealt with by the following vehicle according to the displayed content.

Description

Display control device, vehicle, and display control method

Technical Field

The invention relates to a display control device, a vehicle, and a display control method.

Background

Japanese patent laid-open publication No. 2019-045908 discloses a system in which a front vehicle notifies a possibility of encountering a rear vehicle when a vehicle (rear vehicle) that is performing dangerous driving approaches the front vehicle.

Disclosure of Invention

In recent years, advertisements are output by a display device (display area) provided outside the vehicle body. Therefore, it is conceivable that if it is notified in advance from the display area to the outside (for example, a surrounding vehicle located in the vicinity of the preceding vehicle) that a following vehicle running (towing) or other dangerous driving is approaching the preceding vehicle, the following vehicle can be appropriately handled even when encountering the preceding vehicle.

However, the technique of japanese patent laid-open publication No. 2019-045908 is for notification to each vehicle, and is not for notification to the outside by a display device. Therefore, when a rear vehicle encounters a front vehicle due to its rapid approach, the surrounding vehicle may not be able to appropriately respond.

An object of the present invention is to provide a display control device, a vehicle, and a display control method that can appropriately display the approach of a rear vehicle to a front vehicle to the outside.

The display control device according to an aspect of the present invention includes an approach determination unit that determines whether or not a rear vehicle is approaching a front vehicle; the display control unit controls display of content in a display area that faces outside the preceding vehicle. When it is determined by the approach determination unit that the rear vehicle is approaching the front vehicle, the display control unit displays approach information, which is information on the approach of the rear vehicle to the front vehicle, as the content in the display area.

A vehicle according to another aspect of the present invention includes the display control device described above.

A display control method according to still another aspect of the present invention includes an approach determination step of determining whether or not a rear vehicle is approaching a front vehicle; in the display control step, the display of the content in a display area that faces the outside of the preceding vehicle is controlled. In the display control step, when it is determined in the approach determination step that the rear vehicle is approaching the front vehicle, approach information that is information about the approach of the rear vehicle to the front vehicle is displayed in the display area as the content.

According to the present invention, since the proximity information is displayed as the content in the display area, it is possible to appropriately display the proximity of the rear vehicle to the front vehicle to the outside. Accordingly, the nearby vehicle located in the vicinity of the preceding vehicle can take appropriate measures for the following vehicle according to the displayed content (proximity information).

The above objects, features and advantages should be readily understood from the following description of the embodiments with reference to the accompanying drawings.

Drawings

Fig. 1 is a block diagram showing a vehicle including a display control device according to an embodiment.

Fig. 2 is a view showing a vehicle.

Fig. 3 is a diagram showing a vehicle.

Fig. 4 is a diagram showing an example of a traveling state of each vehicle on a lane.

Fig. 5 is a flowchart showing an example of the operation of the display control apparatus according to the embodiment.

Fig. 6A and 6B are diagrams showing display examples.

Detailed Description

Hereinafter, a display control apparatus, a vehicle, and a display control method according to the present invention will be described in detail with reference to the accompanying drawings by referring to preferred embodiments.

[1. Structure of the present embodiment ]

A display control device, a vehicle, and a display control method according to an embodiment will be described with reference to the drawings. Fig. 1 is a block diagram showing a vehicle equipped with a display control device according to the present embodiment.

The vehicle 10 (front vehicle) has a display Control device 12, i.e., a display Control ecu (electronic Control unit). The vehicle 10 further includes an external sensor 14 (ambient environment detection unit), a vehicle speed sensor 16, a communication unit 20, an HMI (human machine interface) 22, a display unit 24, a navigation device 30 (position detection unit), and a positioning unit 33 (position detection unit). The vehicle 10 also has components other than these components, and the description thereof is omitted here.

The outside sensor 14 acquires outside information (surrounding environment information) that is information indicating the outside state of the vehicle 10. The environment sensor 14 has a plurality of cameras 32 and a plurality of radars 34. The ambient sensor 14 also has a plurality of LiDAR (Light Detection And Ranging: Light Detection And Ranging, Laser Imaging Detection And Ranging: Laser Imaging Detection And Ranging) 36.

The camera information, which is information acquired by the camera 32, is supplied from the camera 32 to the display control device 12. The camera information includes shooting information and the like. The camera information is combined with radar information and LiDAR information, which will be described later, to constitute external information. In fig. 1, 1 camera 32 is illustrated, but actually, there are a plurality of cameras 32.

The radar 34 transmits a transmission wave to the outside of the vehicle 10, and receives a reflected wave reflected by a detected object in the transmitted transmission wave. Examples of the transmission wave include an electromagnetic wave. Examples of the electromagnetic wave include a millimeter wave. The radar 34 generates radar information (reflected wave signal) from the reflected wave or the like. The radar 34 supplies the generated radar information to the display control device 12. In fig. 1, 1 radar 34 is illustrated, but the vehicle 10 actually has a plurality of radars 34. The radar 34 is not limited to the millimeter-wave radar. For example, a laser radar, an ultrasonic sensor, or the like may be used as the radar 34.

The LiDAR36 continuously emits laser light in all directions of the vehicle 10, measures the three-dimensional position of the reflection point from the reflected wave of the emitted laser light, and outputs three-dimensional information, which is information on the three-dimensional position. The LiDAR36 supplies this three-dimensional information, i.e., LiDAR information, to the display control device 12. In FIG. 1, 1 LiDAR36 is illustrated, but in practice the vehicle 10 has multiple LiDAR 36.

The vehicle speed sensor 16 can detect the speed of the vehicle 10, i.e., the vehicle speed. Information detected by the vehicle speed sensor 16, that is, information indicating the vehicle speed can be supplied to the display control device 12.

The communication unit 20 performs wireless communication with an external device not shown. The external device may include, for example, an external server not shown. The communication unit 20 can perform inter-vehicle communication with another vehicle by wireless communication.

The HMI22 accepts operation inputs by the occupant, and provides the occupant with various information in a visual, audible, or tactile manner. The HMI22 can include, for example, a display and a speaker, which are not shown.

As the display unit 24, for example, a liquid crystal display, an organic EL display, an LED matrix, or the like can be used, but the present invention is not limited thereto. The display unit 24 may be configured by a projector. When the display unit 24 is configured by a projector, the projector is disposed inside the vehicle 10 and can project content onto a window of the vehicle 10. The display unit 24 has display areas 70B, 70F, 70L, and 70R facing the vehicle exterior direction of the vehicle 10, that is, the vehicle exterior. The reference numeral 70 is used when describing the entire display region, and the reference numerals 70B, 70F, 70L, and 70R are used when describing the respective display regions.

Fig. 2 and 3 are diagrams illustrating the vehicle 10. A rear portion 10B of the vehicle 10 is shown in fig. 2. Fig. 3 shows a left side portion 10L of the vehicle 10. A rear door 80B, for example, is provided at the rear portion 10B of the vehicle 10. The left side portion 10L of the vehicle 10 is provided with, for example, a slide door 80L. A slide door, not shown, may be provided on the right side portion, not shown, of the vehicle 10, and the description thereof is omitted.

As shown in fig. 2, a display area 70B is provided on the rear portion 10B of the vehicle 10, more specifically, on the back door 80B. More specifically, the display area 70B is provided on the outer side surface of the back door 80B. Since the display area 70B is provided in the rear portion 10B of the vehicle 10, the display area 70B can be visually confirmed from the rear of the vehicle 10. As shown in fig. 3, a display area 70L is provided on the left side portion 10L of the vehicle 10, more specifically, on the slide door 80L. More specifically, the display area 70L is provided on the outer side surface of the slide door 80L. A display area 70R is provided on a right side portion, not shown, of the vehicle 10, more specifically, on a slide door, not shown. More specifically, the display region 70R is provided on the outer side surface of the slide door, not shown. A display area 70F can be provided in a front portion, not shown, of the vehicle 10.

The display area 70 of the display unit 24 can display contents such as advertisements. Examples of the content include images, but are not limited thereto.

As shown in fig. 1, the Navigation device 30 includes a GNSS (Global Navigation Satellite System) sensor (not shown). The navigation device 30 further includes an unillustrated computing unit and an unillustrated storage unit. The GNSS sensor detects the current position of the vehicle 10 (own vehicle position information, current position information). The calculation unit reads map information corresponding to the current position detected by the GNSS sensor from the map database stored in the storage unit. The calculation unit can specify a target route from the current position to the destination using the map information. The navigation device 30 can output the created target route to the display control device 12. The navigation device 30 can supply the display control device 12 with own vehicle position information (current position information) of the vehicle 10, route information, map information, and the like.

The positioning portion 33 has GNSS 48. The positioning section 33 also has an IMU (Inertial Measurement Unit) 50 and a map database (map DB) 52. The positioning section 33 suitably uses the information obtained by the GNSS48, the information obtained by the IMU50, and the map information stored in the map database 52 to determine the position of the vehicle 10. The positioning unit 33 can supply vehicle position information (current position information) that is information indicating the position of the vehicle 10 to the display control device 12. The positioning unit 33 can supply map information to the display control device 12.

The display control device 12 includes an arithmetic unit 54 and a storage unit 56. The arithmetic unit 54 is responsible for overall control of the display control device 12. The arithmetic unit 54 may be constituted by 1 or more processors, for example. The processor may be, for example, a Central Processing Unit (CPU). The arithmetic unit 54 controls each unit based on a program stored in the storage unit 56, thereby performing display control.

The arithmetic unit 54 includes a control unit 57, an information acquisition unit 58, an approach determination unit 60, and a display control unit 62. The control unit 57, the information acquisition unit 58, the approach determination unit 60, and the display control unit 62 can be realized by the arithmetic unit 54 executing a program stored in the storage unit 56.

The storage unit 56 includes a volatile memory not shown and a nonvolatile memory not shown. Examples of the volatile memory include a ram (random Access memory). Examples of the nonvolatile memory include a rom (read Only memory) and a flash memory. The outside world information, the vehicle body behavior information, the vehicle operation information, and the like are stored in the volatile memory, for example. Programs, tables, maps, etc. are stored, for example, in non-volatile memory. Data relating to the content such as advertisements, specifically, proximity information (notification information, warning information) described later is stored in the nonvolatile memory, for example.

The control unit 57 is responsible for overall control of the display control device 12.

The information acquisition section 58 acquires various information from the external sensor 14, the vehicle speed sensor 16, the communication section 20, the HMI22, the navigation device 30, and the positioning section 33. The information acquisition unit 58 acquires own vehicle position information (current position information) of the vehicle 10 from, for example, the navigation device 30 or the positioning unit 33. In addition, the information acquisition unit 58 acquires camera information, radar information, and LiDAR information as outside information (surrounding environment information) from the outside sensor 14. The information acquisition unit 58 acquires the vehicle speed of the vehicle 10 from the vehicle speed sensor 16.

When the vehicle 10, which is a preceding vehicle, is traveling, the approach determination unit 60 determines whether or not another vehicle (a following vehicle) traveling behind the vehicle 10 is approaching the vehicle 10 in the forward direction. The approach determination unit 60 determines the presence of a rear vehicle (for example, a rear vehicle 95 in fig. 4) using the various information acquired by the information acquisition unit 58, determines the current position of the vehicle 10 as the front vehicle and the current position of the rear vehicle, and determines whether or not the rear vehicle is approaching the vehicle 10 based on the positional relationship between the current position of the vehicle 10 and the current position of the rear vehicle, that is, the inter-vehicle distance between the vehicle 10 and the rear vehicle. In this case, when the vehicle distance is smaller than the predetermined distance threshold value, the approach determination unit 60 determines that the following vehicle approaches the vehicle 10 while traveling immediately ahead.

The presence of the rear vehicle can be specified from the camera information acquired by the information acquisition unit 58, for example, an image of the rear vehicle captured by the camera information behind the vehicle 10 captured by the rear camera disposed in the rear portion 10B of the vehicle 10. The current position of the vehicle 10 can be determined based on the own vehicle position information acquired by the information acquisition unit 58 from the navigation device 30 or the positioning unit 33. The current position of the rear vehicle can be determined from the image of the rear vehicle and the information on the rear vehicle out of the radar information and the LiDAR information acquired by the information acquisition unit 58.

The display control unit 62 can control the display of the content in the display area 70 of the display unit 24. When it is determined by the approach determination portion 60 that the rear vehicle is approaching the vehicle 10, the display control portion 62 can read out the approach information, which is information on the approach of the rear vehicle to the vehicle 10, from the storage portion 56 and display the read-out approach information as content in the display area 70.

In this case, as the approach information, there are notification information for notifying a nearby vehicle (for example, the nearby vehicles 96, 98 of fig. 4) other than the rear vehicle that is traveling immediately ahead of the vehicle, among the other vehicles located in the periphery of the vehicle 10, that the rear vehicle is approaching the vehicle 10, and warning information; the warning information is information for warning a vehicle to the rear. The display controller 62 displays at least one of the notification information and the warning information in the display area 70. The notification information is displayed on the display areas 70F, 70L, and 70R, for example. Further, the warning information is displayed on the display area 70B, for example.

[2. operation of the present embodiment ]

Next, the operation of the display control device 12 will be described. Fig. 4 shows an example of the traveling state of each vehicle (vehicle 10, rear vehicle 95, and nearby vehicles 96, 98) on lanes 94A, 94B, 94C, 94D. Here, the following case will be explained: on a 4-lane road, when the vehicle 10 is traveling on the lane 94B, the rear vehicle 95 approaches the vehicle 10 from behind the vehicle 10 while traveling immediately ahead. In this case, there are a nearby vehicle 96 traveling on the lanes 94A, 94B and a nearby vehicle 98 traveling on the lane 94D as the opposite lane in the periphery of the vehicle 10.

Fig. 5 is a flowchart showing the operation of the display control device 12.

In step S1, the information acquisition portion 58 (refer to fig. 1) acquires own vehicle position information of the vehicle 10 from the navigation device 30 or the positioning portion 33, and acquires outside world information (camera information, radar information, and LiDAR information) from the outside world sensor 14.

In step S2, the approach determination unit 60 determines whether or not the rear vehicle 95 (see fig. 4) is approaching the vehicle 10 (see fig. 1 to 4) in the forward direction. In this case, the approach determination unit 60 specifies the current position of the vehicle 10 based on the own vehicle position information acquired by the information acquisition unit 58. The approach determination unit 60 specifies the rear vehicle 95 based on the camera information acquired by the information acquisition unit 58, and specifies the current position of the rear vehicle 95 based on the camera information, and information on the rear vehicle 95 among the radar information and the LiDAR information. The approach determination unit 60 calculates the vehicle distance between the vehicle 10 and the rear vehicle 95 from the current position of the vehicle 10 and the current position of the rear vehicle 95, and determines whether or not the calculated vehicle distance is smaller than the distance threshold.

When the calculated inter-vehicle distance is smaller than the distance threshold, the approach determination unit 60 determines that the rear vehicle 95 is approaching the vehicle 10 (yes in step S2).

If the determination result in step S2 is positive, then in step S3, the display controller 62 reads the approach information indicating that the rear vehicle 95 is approaching the vehicle 10 from the storage unit 56, and displays the read approach information as content on the display area 70.

Fig. 6A and 6B show examples of display of the display area 70.

Fig. 6A is a display example of the display area 70L showing "it is soon about to travel the vehicle immediately ahead. "this character information (proximity information, notification information). Accordingly, the nearby vehicle 96 traveling on the lane 94A can recognize that the rear vehicle 95 is approaching the vehicle 10 by observing the notification information displayed on the display area 70L. As a result, the nearby vehicle 96 can take appropriate measures even when encountering the rear vehicle 95.

Fig. 6B is a display example of the display area 70B, showing "the camera is shooting. "this character information (proximity information, warning information). By thus giving a warning to the rear vehicle 95, it is expected that the rear vehicle 95 stops (abandons) the running of the immediately preceding vehicle.

As described above, the external sensor 14 outputs the camera information of the camera 32 to the display control device 12, and the information acquisition unit 58 acquires the camera information including the image of the rear vehicle 95. Therefore, the storage unit 56 of the display control device 12 may store the image of the rear vehicle 95. Accordingly, in step S3, except that "the camera is shooting. In addition to the character information, the display control unit 62 may display the image of the rear vehicle 95 stored (recorded) in the storage unit 56 in the display area 70B as warning information.

In addition, in the case where the notification information is displayed in the display area 70L, it may be possible to display the notification information in addition to "immediately before the vehicle runs immediately after the preceding vehicle". "in addition to this character information, the image of the rear vehicle 95 stored (recorded) in the storage unit 56 is displayed on the display area 70L as notification information.

In addition, when notification information is notified to the nearby vehicle 98 traveling in the lanes 94C, 94D as the oncoming lanes, the notification information of fig. 6A may be displayed in the right-side display region 70R. In addition, when notification information is notified to the nearby vehicle 96 traveling ahead of the vehicle 10 on the lanes 94A, 94B, the notification information of fig. 6A may be displayed in the front display area 70F. When notification information is notified to a nearby vehicle 96 traveling behind the vehicle 10 in the lanes 94A and 94B, the notification information of fig. 6A may be displayed in the rear display area 70B. In this case, both the notification information of fig. 6A and the warning information of fig. 6B may be displayed in parallel in the display area 70B.

On the other hand, when the calculated inter-vehicle distance is equal to or greater than the distance threshold in step S2, the approach determination unit 60 determines that the rear vehicle 95 is not approaching the forward vehicle 10 (no in step S2). In this case, the display processing in step S3 is skipped, and the proximity information is not displayed in the display area 70.

[3 ] modification of the present embodiment ]

While the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention.

In the above description, the following is explained: a display control device 12, an external sensor 14, a navigation device 30, and a positioning unit 33 are mounted on a vehicle 10 as a preceding vehicle, and it is determined whether or not a following vehicle 95 is approaching the vehicle 10 based on information from each device of the vehicle 10. In the present embodiment, the peripheral vehicles 96 and 98 are equipped with the external sensor 14 and the like, and the communication unit 20 of the vehicle 10 may acquire external information (for example, an image of the rear vehicle 95) from the peripheral vehicles 96 and 98 by wireless inter-vehicle communication. Accordingly, the display control device 12 can perform the processing shown in the flowchart of fig. 5 based on the received outside world information and the current position information of the vehicle 10 acquired from the navigation device 30 or the positioning unit 33.

In the present embodiment, the display control device 12 and the communication unit 20 may be mounted on the nearby vehicles 96 and 98. In this case, the communication units 20 of the nearby vehicles 96, 98 may receive the outside world information, the current position information, and the like from the vehicle 10 by wireless inter-vehicle communication, and the display control devices 12 of the nearby vehicles 96, 98 may perform the processing shown in the flowchart of fig. 5 based on the received outside world information and current position information. Accordingly, if the determination result in step S2 is positive, the communication unit 20 of the nearby vehicle 96, 98 transmits the proximity information to the communication unit 20 of the vehicle 10 by inter-vehicle communication. As a result, the proximity information received by the communication unit 20 can be displayed as content on the display area 70 in the vehicle 10.

In the above description, the display control device 12 and the communication unit 20 are mounted on the vehicle 10 as the preceding vehicle, but the display control device 12 and the communication unit 20 may be mounted on the nearby vehicles 96 and 98. In this case, the communication units 20 of the nearby vehicles 96, 98 may receive the outside world information, the current position information, and the like from the vehicle 10 by wireless inter-vehicle communication, and the display control devices 12 of the nearby vehicles 96, 98 may perform the processing shown in the flowchart of fig. 5 based on the received outside world information and current position information. Accordingly, if the determination result in step S2 is positive, the communication unit 20 of the nearby vehicle 96, 98 transmits the proximity information to the communication unit 20 of the vehicle 10 by inter-vehicle communication. As a result, the proximity information received by the communication unit 20 can be displayed as content on the display area 70 in the vehicle 10.

[4. effect of the present embodiment ]

The above embodiments are summarized as follows.

The display control device (12) is provided with an approach determination unit (60) and a display control unit (62), wherein the approach determination unit (60) determines whether or not a rear vehicle (95) is approaching a front vehicle (10); the display control unit (62) controls display of content in a display area (70), the display area (70) being directed to the outside of the preceding vehicle (10). When it is determined by the approach determination unit (60) that the rear vehicle (95) is approaching the front vehicle (10), the display control unit (62) displays approach information, which is information on the approach of the rear vehicle (95) to the front vehicle (10), as the content in the display area (70).

In addition, the display control method has an approach determination step (S2) and a display control step (S3), wherein in the approach determination step (S2), it is determined whether or not the rear vehicle (95) is approaching the front vehicle (10); in the display control step (S3), the display of content in a display area (70) is controlled, wherein the display area (70) is directed outward of the preceding vehicle (10). In the display control step (S3), when it is determined in the approach determination step (S2) that the rear vehicle (95) is approaching the front vehicle (10), approach information, which is information about the approach of the rear vehicle (95) to the front vehicle (10), is displayed in the display area (70) as the content.

According to the above configuration, since the proximity information is displayed as content in the display area (70), it can be appropriately displayed that the rear vehicle (95) is approaching the front vehicle (10) directly to the outside. Accordingly, the peripheral vehicles (96, 98) positioned around the front vehicle (10) can take appropriate measures for the rear vehicle (95) according to the displayed content (proximity information).

That is, when a passenger of a nearby vehicle (96, 98) suddenly encounters a following vehicle (95) while the following vehicle (95) is traveling in close proximity to the preceding vehicle (10), it may be difficult to determine the following vehicle (95) in a cool and quiet manner. Therefore, by displaying in advance, as the proximity information, the fact that a rear vehicle (95) is traveling immediately ahead, the occupants of the nearby vehicles (96, 98) can deal with the rear vehicle (95) in a cool and quiet manner.

The display control device (12) further has an information acquisition unit (58), and the information acquisition unit (58) acquires information about the preceding vehicle (10) and the following vehicle (95). Accordingly, the approach determination unit (60) can accurately determine whether or not the rear vehicle (95) is approaching the front vehicle (10) based on the information acquired by the information acquisition unit (58).

In this case, the information on the front vehicle (10) and the rear vehicle (95) refers to information on the position of the front vehicle (10) and the position of the rear vehicle (95). Accordingly, the approach determination unit (60) can easily and accurately determine whether or not the rear vehicle (95) is approaching the front vehicle (10) based on the position of the front vehicle (10) and the position of the rear vehicle (95).

The approach information is at least one of notification information and warning information, wherein the notification information is information for notifying a nearby vehicle (96, 98) other than the rear vehicle (95) among vehicles located in the vicinity of the front vehicle (10) that the rear vehicle (95) is approaching the front vehicle (10); the warning information is information for issuing a warning to the rear vehicle (95). Accordingly, the occupant of the nearby vehicle (96, 98) can take appropriate measures for the rear vehicle (95) based on the notified information. In addition, by giving a warning to the rear vehicle (95), it is expected that the rear vehicle (95) stops (gives up) the running of the vehicle immediately ahead.

In addition, by providing the vehicle (10, 96, 98) with the display control device (12) of the above type, the vehicle (10, 96, 98) can easily obtain the above-described respective effects.

In this case, the vehicle (10, 96, 98) further includes a communication unit (20), and the communication unit (20) is capable of performing communication with another vehicle. Accordingly, even when the display control device (12) is mounted on the preceding vehicle (10) or when the display control device (12) is mounted on vehicles (96, 98) other than the preceding vehicle (10), various information can be transmitted and received by vehicle-to-vehicle communication, and it is possible to determine whether or not the following vehicle (95) is approaching the preceding vehicle (10) using the information.

The vehicle (10) is the preceding vehicle (10), and further has position detection units (30, 33) and a surrounding environment detection unit (14), wherein the position detection units (30, 33) detect current position information of the preceding vehicle (10); the surrounding environment detection unit (14) detects surrounding environment information of the preceding vehicle (10), the surrounding environment information including the following vehicle (95). Accordingly, the approach determination unit (60) can determine with higher accuracy whether or not the rear vehicle (95) is approaching the front vehicle (10) based on the current position information detected by the position detection units (30, 33) and the surrounding environment information detected by the surrounding environment detection unit (14).

Claims (8)

1. A display control apparatus (12),

has an approach determination unit (60) and a display control unit (62), wherein,

the approach determination unit (60) determines whether or not a rear vehicle (95) is approaching a front vehicle (10);

the display control unit (62) controls display of content in a display area (70), the display area (70) facing the outside of the preceding vehicle,

the display control portion displays, in the display area, proximity information as the content when it is determined by the proximity determination portion that the rear vehicle is approaching the front vehicle, the proximity information being information about the rear vehicle approaching the front vehicle.

2. The display control apparatus according to claim 1,

further provided with an information acquisition unit (58), the information acquisition unit (58) acquiring information on the preceding vehicle and the following vehicle,

the approach determination unit determines whether or not the rear vehicle is approaching the front vehicle based on the information acquired by the information acquisition unit.

3. The display control apparatus according to claim 2,

the information on the preceding vehicle and the following vehicle means information on a position of the preceding vehicle and a position of the following vehicle,

the approach determination unit determines whether or not the rear vehicle is approaching the front vehicle based on the position of the front vehicle and the position of the rear vehicle.

4. The display control apparatus according to claim 1,

the proximity information is at least one of notification information and warning information, wherein,

the notification information is information for notifying a nearby vehicle (96, 98) other than the rear vehicle, among the vehicles located in the vicinity of the front vehicle, that the rear vehicle is approaching the front vehicle;

the warning information is information for issuing a warning to the rear vehicle.

5. A vehicle (10, 96, 98) characterized in that,

a display control device according to any one of claims 1 to 4.

6. The vehicle of claim 5,

the vehicle further comprises a communication unit (20), and the communication unit (20) can communicate with other vehicles.

7. The vehicle of claim 5,

the vehicle is the preceding vehicle, and further has a position detection unit (30, 33) and a surrounding environment detection unit (14), wherein the position detection unit (30, 33) detects current position information of the preceding vehicle; the surrounding environment detection unit (14) detects surrounding environment information of the preceding vehicle, the surrounding environment information including the following vehicle,

the approach determination unit determines whether or not the rear vehicle is approaching the front vehicle based on the current position information detected by the position detection unit and the ambient environment information detected by the ambient environment detection unit.

8. A display control method characterized by comprising, in a display control unit,

there are a proximity determination step (S2) and a display control step (S3) in which,

in the approach determination step (S2), it is determined whether or not the rear vehicle is approaching the front vehicle;

in the display control step (S3), controlling displaying content in a display area, wherein the display area is directed outward of the preceding vehicle,

in the display control step, when it is determined in the approach determination step that the rear vehicle is approaching the front vehicle, approach information that is information about the approach of the rear vehicle to the front vehicle is displayed in the display area as the content.

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