JP2020090135A - Display control unit, display control system, display control method, and display control program - Google Patents

Abstract

To properly check the rear on the side of an adjacent lane.SOLUTION: A display control unit 100 comprises: a video data acquisition part 121 for acquiring video data obtained by a camera for shooting the rear on the right and left sides of a vehicle; an adjacent lane information acquisition part 123 for acquiring adjacent lane information on a lane adjacent to a running lane on which the vehicle travels; and a display control part 122 which displays the video data on each of the right and left sides, acquired by the video data acquisition part 121, and which provides a wider display on the side of the presence of the adjacent lane than a display on the side of the absence of the adjacent lane, on the basis of the adjacent lane information.SELECTED DRAWING: Figure 3

Description

The present invention relates to a display control device, a display control system, a display control method, and a display control program.

A technique is known in which an image captured by a side camera is displayed on a side monitor instead of an optical side mirror for confirming the rear side of a vehicle.

For example, Patent Document 1 discloses an electronic mirror device that has a function of an optical mirror in an electronic mirror device that displays an image of the rear of a vehicle.

International Publication No. 2016/047367

An electronic mirror that displays an image captured by a side camera instead of a vehicle side mirror displays an image with a field angle close to the range that can be confirmed by an optical side mirror. Like the optical mirror, the electronic mirror can confirm only the same range even if the driver changes the visual position.

An object of the present invention is to provide a display control device, a display control system, a display control method, and a display control program capable of appropriately confirming the rear side.

The display control device of the present invention acquires a video data acquisition unit that acquires video data captured by a camera that captures the rear left and right sides of a vehicle, and adjacent lane information regarding an adjacent lane of a traveling lane in which the vehicle is traveling. When the adjacent lane information acquisition unit and the video data acquired by the video data acquisition unit are displayed on the left and right, respectively, and based on the adjacent lane information, a display on the side where the adjacent lane exists is not present. And a display control section for displaying a wider area than the display of.

The display control system of the present invention further includes the display control device of the present invention, a left display unit that displays video data on the left rear side of the vehicle, and a right display unit that displays video data on the right rear side of the vehicle. Prepare The display control unit displays the display on the display unit on the side where the adjacent lane is present as a wider range of images than the display on the display unit when the adjacent lane is not present.

The display control system of the present invention further includes a display control device of the present invention, and a display unit for displaying left rear image data and right rear image data of the vehicle. The display control unit displays the display on the side where the adjacent lane exists in a wider display range than the display when the adjacent lane does not exist.

The display control method of the present invention acquires a video data acquisition step of acquiring video data captured by a camera that captures the rear left and right sides of a vehicle, and acquires adjacent lane information regarding an adjacent lane of a traveling lane in which the vehicle is traveling. When the adjacent lane information acquisition step and the video data acquired in the video data acquisition step are displayed on the left and right, respectively, and based on the adjacent lane information, a display on the side where the adjacent lane exists is not present. And a display control step of displaying a wider area than the display of.

A display control program of the present invention acquires a video data acquisition step of acquiring video data captured by a camera that captures the left and right rear sides of a vehicle, and adjacent lane information regarding an adjacent lane of a traveling lane in which the vehicle is traveling. When the adjacent lane information acquisition step and the video data acquired in the video data acquisition step are displayed on the left and right, respectively, and based on the adjacent lane information, a display on the side where the adjacent lane exists is not present. And a display control step for making the display wider than the display of.

According to the present invention, the rear of the adjacent lane can be properly confirmed.

FIG. 1 is a schematic diagram showing an example of the configuration of the display control system according to the first embodiment. FIG. 2 is a schematic diagram showing an example of the configuration of the display control system according to the first embodiment. FIG. 3 is a block diagram showing an example of the configuration of the display control system according to the first embodiment. FIG. 4 is a schematic diagram for explaining an example of a method of detecting an adjacent lane. FIG. 5 is a schematic diagram for explaining an example of a method of detecting an adjacent lane. FIG. 6 is a schematic diagram for explaining an example of a method of detecting an adjacent lane. FIG. 7 is a schematic diagram for explaining an example of a method of changing the angle of view. FIG. 8 is a flowchart showing an example of a processing flow of the display control device according to the first embodiment. FIG. 9 is a flowchart showing an example of the flow of processing of the display control device according to the first embodiment. FIG. 10 is a schematic diagram showing an example of the configuration of the display control system according to the second embodiment. FIG. 11 is a schematic diagram showing an example of the configuration of the display control system according to the second embodiment. FIG. 12 is a block diagram showing an example of the configuration of the display control system according to the second embodiment. FIG. 13 is a schematic diagram for explaining the display area of the driver monitor. FIG. 14 is a schematic diagram for explaining an example of a method for widening the display area on the side where the adjacent lane is detected. FIG. 15 is a flowchart showing an example of the processing flow of the display control device according to the second embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited to this embodiment, and when there are a plurality of embodiments, those including a combination of the embodiments are also included.

[First embodiment]
The configuration of the display control system according to the first embodiment will be described with reference to FIGS. 1, 2, and 3. FIG. 1 is a schematic diagram showing an example of the configuration of the display control system according to the first embodiment. FIG. 2 is a schematic diagram showing an example of the configuration of the display control system according to the first embodiment. FIG. 3 is a block diagram showing an example of the configuration of the display control system according to the first embodiment.

As shown in FIGS. 1 to 3, the display control system 1 includes a left side camera 10, a right side camera 20, a left side monitor 30, a right side monitor 40, and a GPS (Global Positioning System) receiver 50. The storage unit 60 and the display control device (control unit) 100 are provided.

The left side camera 10 is provided on the left side of the vehicle M. Specifically, the left side camera 10 is provided so as to face the rear of the vehicle M, and photographs the rear of the left side of the vehicle M. The direction and angle of the left side camera 10 can be set arbitrarily. The left side camera 10 outputs the imaged data on the left side of the imaged image to the video data acquisition unit 121 of the display control device 100.

The right side camera 20 is provided on the right side of the vehicle M. Specifically, the right side camera 20 is provided so as to face the rear of the vehicle M, and photographs the right rear of the vehicle M. The direction and angle of the right side camera 20 can be set arbitrarily. The right side camera 20 outputs the photographed data on the right rear side, which has been photographed, to the video data acquisition unit 121 of the display control device 100.

The left side monitor 30 displays video data behind the left side of the vehicle M. Specifically, the left side monitor 30 displays the video data captured by the left side camera 10 under the control of the display control unit 122, for example. The left side monitor 30 can be realized by a display such as a liquid crystal display (LCD) or an organic EL (Organic Electro-Luminescence) display. The left side monitor 30 is provided at a position where the driver of the vehicle M can visually recognize it. For example, the left side monitor 30 is provided on the left side of the dashboard D so that the driver of the vehicle M can easily recognize it.

The right side monitor 40 displays video data on the right rear side of the vehicle M. Specifically, the right side monitor 40 displays the video data captured by the right side camera 20 under the control of the display control unit 122, for example. The right side monitor 40 can be realized by a display such as a liquid crystal display or an organic EL display, for example. The right side monitor 40 is provided at a position visible to the driver of the vehicle M. For example, the right side monitor 40 is provided on the right side of the dashboard D so that the driver of the vehicle M can easily recognize it.

As shown in FIG. 2, in the present embodiment, the room mirror RM is, for example, an optical mirror. The room mirror RM may be, for example, an electronic mirror. In this case, the display control system 1 may include a rear camera that captures an image of the rear of the vehicle M. Then, the rearview mirror RM displays the image data behind the vehicle M captured by the rear camera.

The GPS receiving unit 50 includes a GPS receiving circuit, a GPS receiving antenna, and the like, and receives GPS signals. The GPS reception unit 50 outputs the received GPS signal to the position information acquisition unit 124.

The storage unit 60 stores, for example, a program for realizing each unit of the display control device 100. In this case, the display control device 100 realizes the function of each unit by expanding and executing the program stored in the storage unit 60. The storage unit 60 is realized by a semiconductor memory device such as a RAM (Random Access Memory), a ROM (Read Only Memory), or a flash memory (Flash Memory), or a storage device such as a hard disk, a solid state drive, or an optical disk. You can The storage unit 60 may be composed of a plurality of different memories or the like. The storage unit 60 stores, for example, map information 61. The map information 61 includes, for example, information about roads and facilities.

The display control device 100 includes a video data acquisition unit 121, a display control unit 122, an adjacent lane information acquisition unit 123, a position information acquisition unit 124, and a map information acquisition unit 125. The video data acquisition unit 121, the display control unit 122, the adjacent lane information acquisition unit 123, the position information acquisition unit 124, and the map information acquisition unit 125 are connected to each other via the bus 110. The display control device 100 realizes the function of each unit by expanding and executing the program stored in the storage unit 60. The display control device 100 can be realized by, for example, an electronic circuit including a CPU (Central Processing Unit).

The video data acquisition unit 121 acquires various video data. The video data acquisition unit 121 acquires, for example, video data behind the left side of the vehicle M captured by the left side camera 10. The video data acquisition unit 121 acquires, for example, video data behind the right side of the vehicle M captured by the right side camera 20.

The video data acquisition unit 121 outputs various acquired video data to the display control unit 122 and the adjacent lane information acquisition unit 123. The video data acquisition unit 121 outputs the video data on the left rear side of the vehicle M acquired from the left side camera 10 to the display control unit 122 and the adjacent lane information acquisition unit 123, for example. The video data acquisition unit 121 outputs the video data behind the right side of the vehicle M acquired from the right side camera 20 to the display control unit 122 and the adjacent lane information acquisition unit 123, for example.

The display control unit 122 displays, on the left side monitor 30, the video data on the left side of the vehicle M captured by the left side camera 10. For example, when there is an adjacent lane on the left side of the vehicle M, the display control unit 122 widens the angle of view of the rear image data on the left side of the vehicle M, compared to the case where there is no adjacent lane, and the left side monitor. Display on 30. Specifically, the display control unit 122 cuts out a part of the shooting range when displaying it on the left side monitor 30 with respect to the shooting range taken by the left side camera 10. Then, when there is an adjacent lane, the display control unit 122 widens the range to be cut out and displays it on the left side monitor 30 as compared with the case where there is no adjacent lane.

Specifically, for example, when the adjacent lane in the same traveling direction as the traveling lane of the vehicle M exists on the left side of the vehicle M, the display control unit 122 compares it with the case where there is no adjacent lane in the same traveling direction. Then, the angle of view of the rear image data on the left side of the vehicle M is widened and displayed on the left side monitor 30. The display control unit 122 is, for example, an adjacent lane that travels in a direction opposite to the traveling direction of the traveling lane of the vehicle M, a so-called oncoming lane, and an oncoming lane that can move between the traveling lane and the oncoming lane is When it exists on the left side, the angle of view of the video data on the left rear side of the vehicle M is widened and displayed on the left side monitor 30, as compared with the case where the vehicle cannot move between lanes. Further, consider a case where there is an adjacent lane that travels in a direction opposite to the traveling direction of the traveling lane of the vehicle M, and a vehicle in the same traveling direction as the vehicle M is not prohibited from protruding into the adjacent lane on the left side. In this case, the display control unit 122 widens the angle of view of the video data on the left rear side of the vehicle M and displays it on the left side monitor 30, as compared with the case where the protrusion is prohibited.

The display control unit 122 displays on the right side monitor 40 the image data of the right rear side of the vehicle M captured by the right side camera 20. For example, when there is an adjacent lane on the right side of the vehicle M, the display control unit 122 widens the angle of view of the rear image data on the right side of the vehicle M to increase the angle of view of the right side monitor as compared with the case where there is no adjacent lane. 40 is displayed.

Specifically, for example, when the adjacent lane in the same traveling direction as the traveling lane of the vehicle M exists on the right side of the vehicle M, the display control unit 122 compares it with the case where there is no adjacent lane in the same traveling direction. Then, the angle of view of the rear image data on the right side of the vehicle M is widened and displayed on the right side monitor 40. The display control unit 122 is, for example, an adjacent lane that travels in a direction opposite to the traveling direction of the traveling lane of the vehicle M, a so-called oncoming lane, and an oncoming lane that can move between the traveling lane and the oncoming lane is When it exists on the right side, the angle of view of the rear image data on the right side of the vehicle M is widened and displayed on the right side monitor 40 as compared with the case where the vehicle cannot move between lanes. Also, consider a case where there is an adjacent lane that travels in a direction opposite to the traveling direction of the traveling lane of the vehicle M, and a vehicle in the same traveling direction as the vehicle M is not prohibited from protruding into the adjacent lane on the right side. In this case, the display control unit 122 widens the angle of view of the rear image data on the right side of the vehicle M and displays it on the right side monitor 40 as compared with the case where the protrusion is prohibited.

The adjacent lane information acquisition unit 123 detects the adjacent lane, for example, based on the current position where the vehicle M is traveling. In this case, the adjacent lane information acquisition unit 123 acquires information regarding the adjacent lane of the lane in which the vehicle M is currently traveling, based on the map information 61 acquired by the map information acquisition unit 125. Here, the map information 61 includes road information including information on the lane in which the vehicle M is traveling. The road information includes information such as whether the lane is a solid line or a broken line, overtaking is prohibited, and protruding is prohibited. Specifically, the adjacent lane information acquisition unit 123 acquires, for example, information regarding an adjacent lane in which the vehicle M is traveling from the lane in which the vehicle M is traveling. When the adjacent lane information acquisition unit 123 can acquire the information about the adjacent lane based on the map information 61, the adjacent lane information acquisition unit 123 widens the angle of view of the video data of the side monitor on the side where the adjacent lane exists.

When the adjacent lane information acquisition unit 123 detects an adjacent lane based on the video data acquired by the video data acquisition unit 121, the display control system 1 does not necessarily need to include the map information 61.

The adjacent lane information acquisition unit 123 acquires, for example, adjacent lane information regarding the adjacent lane of the traveling lane of the vehicle M. The adjacent lane information acquisition unit 123 acquires the adjacent lane information based on, for example, the left rear image data and the right rear image data acquired by the image data acquisition unit 121. Specifically, the adjacent lane information acquisition unit 123 detects the presence or absence of an adjacent lane adjacent to the traveling lane of the vehicle M, for example, based on the video data acquired by the video data acquisition unit 121. More specifically, the adjacent lane information acquisition unit 123, based on the video data acquired by the video data acquisition unit 121, the lane center line and the road boundary drawn between the traveling lane of the vehicle M and the adjacent lane. Detect lines etc.

When the adjacent lane is detected, the adjacent lane information acquisition unit 123 outputs a signal indicating the direction in which the adjacent lane is detected to the display control unit 122. The adjacent lane information acquisition unit 123 is, for example, an adjacent lane that travels in a direction opposite to the traveling direction of the traveling lane of the vehicle M. When a lane that can move between lanes is detected, the adjacent lane is detected in that direction. A signal indicating the fact is output to the display control unit 122. Further, for example, consider a case where an adjacent lane traveling in a direction opposite to the traveling direction of the traveling lane of the vehicle M detects a lane in which the vehicle in the same traveling direction as the vehicle M is not prohibited from protruding in the adjacent lane. In this case, the adjacent lane information acquisition unit 123 outputs a signal indicating that an adjacent lane has been detected in that direction to the display control unit 122.

When the display control unit 122 acquires a signal indicating that an adjacent lane has been detected from the adjacent lane information acquisition unit 123, the display control unit 122 widens the angle of view of the video data on the side where the adjacent lane is detected so that the adjacent lane is Display on the side monitor of the detected side.

An example of a method in which the adjacent lane information acquisition unit 123 detects an adjacent lane will be described with reference to FIGS. 4, 5, and 6. 4 to 6 are schematic diagrams for explaining an example of a method in which the adjacent lane information acquisition unit 123 detects an adjacent lane.

4 to 6 show the video data displayed on the left side monitor 30. Hereinafter, a method in which the adjacent lane information acquisition unit 123 detects the adjacent lane on the left side of the traveling lane will be described. The method for the adjacent lane information acquisition unit 123 to detect the adjacent lane on the right side of the traveling lane is the same as the method for detecting the traveling lane on the left side, and therefore description thereof will be omitted.

FIG. 4 shows the video data 130 displayed on the left side monitor 30. In the video data 130, for example, the left side ML of the vehicle M is shown. In the image data 130, the adjacent lane is not reflected on the left side of the vehicle M. In this case, the adjacent lane information acquisition unit 123 does not detect the adjacent lane from the video data 130. In this case, the display control unit 122 does not change the angle of view of the video data 130.

FIG. 5 shows video data 130A displayed on the left side monitor 30 which is different from that shown in FIG. In the image data 130A, the adjacent lane 31 is reflected on the left side of the vehicle M. The adjacent lane 31 may be a lane traveling in the same direction as the vehicle M, or an oncoming lane. In this case, the adjacent lane information acquisition unit 123 detects the adjacent lane 31 based on the video data 130A. In this case, the adjacent lane information acquisition unit 123 outputs a signal indicating that the adjacent lane has been detected to the display control unit 122. Then, the display control unit 122 widens the angle of view of the video data 130A in accordance with the signal indicating that the adjacent lane has been detected. Specifically, when the adjacent lane information acquisition unit 123 detects an adjacent lane that does not restrict the movement of the vehicle M, such as a median strip or a yellow solid line, the adjacent lane information acquisition unit 123 displays a wide angle of view of the video data 130A. To the display control unit 122.

The adjacent lane information acquisition unit 123 may detect the broken line 32 in the video data 130A. The broken line 32 is, for example, a white broken line drawn as a roadway center line or a roadway boundary line. The broken line 32 means that it is possible to pass and to protrude to the adjacent lane 31. In this case, the adjacent lane information acquisition unit 123 outputs a signal indicating that the adjacent lane is detected to the display control unit 122 when the broken line 32 is detected. Then, the display control unit 122 widens the angle of view of the video data 130A in accordance with the signal indicating that the adjacent lane has been detected. In addition, the adjacent lane information acquisition unit 123 detects a broken line 32 on the vehicle M side, and when a yellow solid line is detected on the adjacent lane 31 side, a signal indicating that the adjacent lane is detected is displayed on the display control unit 122. You may output.

FIG. 6 shows video data 130B displayed on the left side monitor 30, which is different from the video data 130B shown in FIGS. 4 and 5. The adjacent lane 31 and the solid line 33 are shown in the video data 130B. The process when the adjacent lane information acquisition unit 123 detects the adjacent lane 31 in the video data 130B is the same as the process when the adjacent lane 31 is detected in the video data 130A, and thus the description thereof is omitted.

The adjacent lane information acquisition unit 123 may detect the solid line 33 in the video data 130B. The solid line 33 is, for example, a white solid line drawn as a roadway center line on a road having two or more lanes on each side. The solid line 33 means that overtaking is possible, but protruding is impossible. In this case, the adjacent lane information acquisition unit 123, when detecting the solid line 33, outputs a signal indicating that the adjacent lane has been detected to the display control unit 122. Then, the display control unit 122 widens the angle of view of the video data 130B in accordance with the signal indicating that the adjacent lane has been detected.

In addition, the adjacent lane information acquisition unit 123, even when the broken line 32 or the solid line 33 is detected, when the sidewalk or the roadside is recognized, the other side behind the side where the sidewalk or the roadside is recognized is located behind. Since there is no vehicle, it is determined that there is no adjacent lane.

A method of changing the angle of view of the video data displayed on the side monitor will be described with reference to FIG. 7. FIG. 7 is a schematic diagram for explaining an example of a method of changing the angle of view of video data displayed on the left side monitor 30. Since the method of changing the angle of view of the video data displayed on the right side monitor 40 is the same as the method of changing the angle of view of the video data displayed on the left side monitor 30, description thereof will be omitted. In addition, the angle of view described in FIG. 7 is a horizontal angle of view.

As shown in FIG. 7, it is assumed that the left side camera 10 can image, for example, the left rear side of the vehicle M within a range of 90°. In this case, the display control unit 122 normally cuts out the video data in the range θ1 from the video data captured by the left side camera 10 and displays it on the left side monitor 30. The range θ1 is, for example, 50 to 60°, but is not limited to this.

When receiving the control signal from the adjacent lane information acquisition unit 123, the display control unit 122 cuts out the video data in the range θ2 from the video data captured by the left side camera 10 and displays it on the left side monitor 30. The range θ2 is, for example, 70 to 80°, but is not limited to this.

Referring back to FIG. The position information acquisition unit 124 acquires current position information. The position information acquisition unit 124 acquires, for example, a GPS signal from the GPS reception unit 50, and acquires current position information based on the acquired GPS signal. The position information acquisition unit 124 outputs the acquired current position information to the map information acquisition unit 125, for example.

The map information acquisition unit 125 acquires map information regarding the current position of the vehicle M. The map information acquisition unit 125 acquires map information related to the current position based on the position information received from the position information acquisition unit 124, for example. The map information acquisition unit 125 is based on the position information received from the position information acquisition unit 124, for example. The map information 61 stored in the storage unit 60 is acquired.

The adjacent lane information acquisition unit 123 may determine whether there is an adjacent lane based on the current position information acquired by the position information acquisition unit 124 and the map information acquired by the map information acquisition unit 125. In this case, the position information acquisition unit 124 acquires the position information of the vehicle M with such an accuracy that the traveling lane can be recognized. The map information also includes information indicating whether or not each lane can move to an adjacent lane.

[Operation of display control device]
Next, the processing of the display control device according to the present embodiment will be described with reference to FIG. FIG. 8 is a flowchart showing an example of the processing flow of the display control device. The flowchart of FIG. 8 starts, for example, when the operation of the vehicle M or the operation of the side monitor starts.

First, the display control device 100 displays the left rear video data and the right rear video data on the left side monitor 30 and the right side monitor 40, respectively (step S101). Specifically, the display control device 100 causes the display control unit 122 to display the video data captured by the left side camera 10 and the right side camera 20 on the left side monitor 30 and the right side monitor 40. As the video data displayed in step S101, for example, a range θ1 shown in FIG. 7 is displayed. Further, in FIG. 8, the processing of step S101 and the processing of steps S107 to S109 are commonly performed for the left side monitor 30 and the right side monitor 40, but the processing of steps S102 to S106 is not performed. , The left side monitor 30 and the right side monitor 40 are independently performed. Therefore, the description from step S102 to step S106 is a processing example of displaying either the left side monitor 30 or the right side monitor 40. In the following description, a display process for the left side monitor 30 will be described, but the same process is also performed in parallel for the right side monitor 40.

Next, the display control device 100 determines whether or not there is an adjacent lane on the left side of the traveling lane (step S102). Specifically, the display control device 100 determines whether or not a signal indicating that an adjacent lane is detected on the left side of the traveling lane is output from the adjacent lane information acquisition unit 123, and the adjacent lane is detected on the left side of the traveling lane. It is determined whether or not

When it is determined in step S102 that there is no adjacent lane on the left side of the traveling lane (No in step S102), the display control device 100 causes the left side monitor 30 to display image data having a wide angle of view, that is, the angle of view of the range θ2. It is determined whether or not the video data of is displayed (step S105). In step S105, when the video data having a wide angle of view is displayed on the left side monitor 30 (Yes in step S105), the display control device 100 sets the display angle of view of the left side monitor 30 to the range of the default value. The angle of view of θ1 is restored and displayed (step S106), and the process proceeds to step S107. In step S105, if the left side monitor 30 does not display the video data with a wide field of view, that is, if the video data with the field of view in the range θ1 that is the default value is displayed (No in step S105), the step is performed. It proceeds to S107.

When it is determined in step S102 that there is an adjacent lane on the left side of the traveling lane (Yes in step S102), the display control device 100 determines whether the left side monitor 30 is displaying image data with a wide angle of view. The determination is made (step S103).

In step S103, when video data having a wide angle of view is displayed on the left side monitor 30 (Yes in step S103), the process proceeds to step S107. In step S103, when the video data with a wide angle of view is not displayed on the left side monitor 30 (No in step S103), the display control device 100 causes the left side monitor 30 to display the video data with a wide angle of view ( (Step S104), the process proceeds to step S107.

In step S107, the display control device 100 determines whether to end the display on the left side monitor 30 and the right side monitor 40. The determination in step S107 is made, for example, when the operation of the vehicle M ends or the operation of the side monitor ends. When it is determined in step S107 that the display on the left side monitor 30 and the right side monitor 40 is not to be ended (No in step S107), the process proceeds to step S102. When it is determined in step S107 that the display of the left side monitor 30 and the right side monitor 40 is to be ended (Yes in step S107), the display control device 100 causes at least one of the left side monitor 30 and the right side monitor 40 to It is determined whether or not video data having a wide angle of view is displayed (step S108). In step S108, when the video data with a wide angle of view is displayed on at least one of the left side monitor 30 and the right side monitor 40 (Yes in step S108), the side monitor with the video data with a wide angle of view is displayed. The display angle of view of is returned to the default display angle of view (step S109), and the process of FIG. 8 ends. In step S108, when the video data having a wide angle of view is not displayed on either the left side monitor 30 or the right side monitor 40 (No in step S108), the process of FIG. 8 is ended.

Next, with reference to FIG. 9, a process different from that of FIG. 8 of the display control device according to the present embodiment will be described. FIG. 9 is a flowchart showing an example of the flow of processing of the display control device which is different from FIG. Specifically, the process of FIG. 9 shows the flow of the process of widening the angle of view when there is a movable adjacent lane. Also in FIG. 9, the processing of step S201 and the processing of steps S208 to S210 are commonly performed for the left side monitor 30 and the right side monitor 40, and the processing of steps S202 to S207 are performed on the left side. It is implemented independently for the monitor 30 and the right side monitor 40. Therefore, in FIG. 9 as well, the display process for the left side monitor 30 will be described, but the same process is executed in parallel for the right side monitor 40 as well.

The processing shown in FIG. 9 is different in that step S203 is added between step S102 and step S103 in FIG. 8, and the other processing is the same, so description thereof will be omitted.

When it is determined in step S202 that there is an adjacent lane on the left side of the traveling lane (Yes in step S202), the display control device 100 determines whether or not the adjacent lane detected in step S202 can be moved from the traveling lane. It is determined (step S203).

When it is determined in step S203 that the detected adjacent lane cannot be moved from the traveling lane (No in step S203), the process proceeds to step S206. When it is determined in step S203 that the detected adjacent lane can be moved from the traveling lane (Yes in step S203), the process proceeds to step S204.

As described above, in the present embodiment, when there is an adjacent lane in the traveling lane, the angle of view of the rear image on the side where the adjacent lane is present can be widened and displayed on the side monitor. As a result, it is possible to properly understand the situation of the rear vehicle traveling in the adjacent lane.

[Second embodiment]
The configuration of the display control system according to the second embodiment will be described with reference to FIGS. 10, 11, and 12. FIG. 10 is a schematic diagram showing an example of the configuration of the display control system according to the second embodiment. FIG. 11 is a schematic diagram showing an example of the configuration of the display control system according to the second embodiment. FIG. 12 is a block diagram showing an example of the configuration of the display control system according to the second embodiment.

As shown in FIGS. 10 to 12, the display control system 1A is different in that a driver monitor 80 is provided instead of the left side monitor 30 and the right side monitor 40.

The driver monitor 80 is arranged in front of the driver of the vehicle M as a horizontally long monitor, and is an integrated monitor that displays the left rear image data and the right rear image data of the vehicle M. Specifically, the driver monitor 80 displays the video data captured by the left side camera 10 and the right side camera 20 under the control of the display control unit 122, for example. The driver monitor 80 can be realized by a display such as a liquid crystal display or an organic EL display, for example. The driver monitor 80 is provided at a position where the driver of the vehicle M can visually recognize it. For example, the driver monitor 80 is provided on the dashboard D in front of the steering wheel S so that the driver of the vehicle M can easily recognize it.

The driver monitor 80 displays the video data captured by the left side camera 10 on the left end side of the horizontally long shape, and displays the video data captured by the right side camera 20 on the right end side. On the driver monitor 80, a display indicating the state of the vehicle M such as a speed display may be performed between the video data captured by the left side camera 10 and the video data captured by the right side camera 20. Further, between the video data captured by the left side camera 10 and the video data captured by the right side camera 20, for example, a rear monitor (not shown) displays the captured data of the rear camera 70 that captures the rear of the vehicle M. Good. The display as the rear monitor may function as the room mirror RM in FIG.

The display area of the video data on the driver monitor 80 will be described with reference to FIG. FIG. 13 is a schematic diagram for explaining the display area of the driver monitor 80. FIG. 13 will be described as an example in which the captured data of the camera capturing the rear of the vehicle M is displayed between the image data captured by the left side camera 10 and the image data captured by the right side camera 20.

As shown in FIG. 13, the driver monitor 80 has a left rear display area 81, a right rear display area 82, and a rear display area 83.

In the left rear display area 81, left rear video data captured by the left side camera 10 is displayed. In the right rear display area 82, the right rear image data captured by the right side camera 20 is displayed. In the rear display area 83, rear image data captured by the rear camera 70 is displayed. Here, the ratio of the display widths of the left rear display area 81, the right rear display area 82, and the rear display area 83 is, for example, d1:d2:d3=3:3:4, which is the default state. To do.

The display control unit 122 widens the angle of view of the video data displayed in the left rear display area 81 when the adjacent lane is detected from the left rear display area 81. In this case, the display control unit 122 widens the display width of the left rear display area 81.

When the adjacent lane is detected from the right rear display area 82, the display control unit 122 widens the angle of view of the video data displayed in the right rear display area 82. In this case, the display control unit 122 widens the display width of the left rear display area 81.

When an adjacent lane is detected from the left rear display area 81 and the right rear display area 82, the display control unit 122 widens the angle of view of the video data displayed in the left rear display area 81 and the right rear display area 82. In this case, the display control unit 122 widens the display width of the left rear display area 81 and the right rear display area 82.

In the second embodiment, the method of detecting the adjacent lane from the left rear display area 81 and the right rear display area 82 is the same as that of the first embodiment, and therefore the description is omitted.

A method of widening the display area for displaying the image data behind the side where the adjacent lane is detected will be described with reference to FIG. FIG. 14 is a schematic diagram for explaining an example of a method for widening the display area.

In FIG. 14, a case where an adjacent lane is detected from the left rear display area 81 will be described. Therefore, in FIG. 14, the video data is displayed only in the left rear display area 81. Note that the method of widening the display area when an adjacent lane is detected from the right rear display area 82 is the same as the method of widening the display area of the left rear display area 81, and a description thereof will be omitted.

As illustrated in FIG. 14, when the adjacent lane 81 a is detected from the left rear display area 81, the display control unit 122 widens the display area of the left rear display area 81. In this case, the ratio of the display widths of the left rear display area 81, the right rear display area 82, and the rear display area 83 is, for example, d1:d2:d3=4:2:4. That is, the display control unit 122 narrows the display width of the right rear display area 82 and widens the display width of the left rear display area 81, for example. For example, as described in the first embodiment, the display control unit 122 detects the roadway center line and the roadway boundary line (for example, the broken line 81b) drawn between the adjacent lanes 81a, and based on the broken line 81b. Thus, the display width of the left rear display area 81 may be widened.

For example, the display control unit 122 may narrow the display width of the rear display area 83 when increasing the display width of the left rear display area 81. In this case, the ratio of the display widths of the left rear display area 81, the right rear display area 82, and the rear display area 83 is, for example, d1:d2:d3=4:3:3. When the display widths of both the left rear display area 81 and the right rear display area 82 are widened, the ratio of the display widths of the left rear display area 81, the right rear display area 82, and the rear display area 83 is: For example, d1:d2:d3=4:4:2 may be used.

That is, when the display width of the left rear display area 81 is widened, the display control unit 122 may arbitrarily change the display widths of the right rear display area 82 and the rear display area 83.

The process of the display control device according to the second embodiment will be described with reference to FIG. FIG. 15 is a flowchart showing an example of the processing flow of the display control device according to the second embodiment. The starting condition of the flowchart of FIG. 15 is the same as that of the flowchart of FIG.

First, the display control device 100A displays video data on the driver monitor 80 (step S301). Specifically, the display control device 100A displays left rear image data in the left rear display region 81, right rear image data in the right rear display region 82, and rear image data in the rear display region 83. Is displayed. As the video data displayed in step S301, for example, the range θ1 shown in FIG. 7 is displayed. 15, in the processes from step S302 to step S306, the presence/absence of adjacent vehicles on the left and right sides of the vehicle M is independently determined. Therefore, the processing from step S302 to step S306 will be described as processing based on the determination of the presence or absence of an adjacent vehicle on the left side of the vehicle M. Processing based on the determination of the presence or absence of an adjacent vehicle on the right side of the vehicle M is also executed in parallel.

Next, the display control device 100A determines whether or not there is an adjacent lane on the left side of the traveling lane (step S302).

When the adjacent lane is not detected on the left side of the traveling lane (No in step S302), the display control device 100A determines whether the display width of the left rear display area 81 is wide, that is, the display width is wide. It is determined whether or not the video data having the angle of view of θ2 is displayed (step S305). In step S305, when the display width of the left rear display area 81 is displayed wide (Yes in step S305), the display control device 100A returns the display width of the left rear display area 81 to the display width of the default value and sets the range. The image data of the angle of view of θ1 is displayed (step S306), and the process proceeds to step S307. In step S305, when the display width of the left rear display area 81 is not displayed wide (No in step S305), that is, when the display width is the default value, the process proceeds to step S307.

When it is determined in step S302 that there is an adjacent lane on the left side of the traveling lane (Yes in step S302), the display control device 100A determines whether or not the display width of the left rear display area 81 is displayed wide ( Step S303).

In step S303, when the display width of the left rear display area 81 is displayed wide (Yes in step S303), the process proceeds to step S307. When the display width of the left rear display area 81 is not displayed wide in step S303 (No in step S303), the display control device 100A causes the display width of the left rear display area 81 to be displayed wide (step S304). , And proceeds to step S307.

In step S307, the display control device 100A determines whether to end the display on the driver monitor 80. The determination in step S307 is made, for example, when the operation of the vehicle M ends. When it is determined in step S307 that the display on the driver monitor 80 is not to be ended (No in step S307), the process proceeds to step S302. When it is determined in step S307 that the display on the driver monitor 80 is to be ended (Yes in step S307), the display control device 100A has a wide display width in at least one of the left rear display area 81 and the right rear display area 82. It is determined whether or not it is displayed (step S308). In step S308, when the display width is displayed wide in at least one of the left rear display area 81 and the right rear display area 82 (Yes in step S308), the display width of the area in which the display width is wide is defaulted. The value is returned to the display width (step S309), and the process of FIG. 15 is terminated. In step S308, if the display width is not widely displayed in at least either the left rear display area 81 or the right rear display area 82 (No in step S308), the process of FIG. 15 ends.

As described above, in the present embodiment, in the monitor in which the side monitor and the rear monitor are integrated, the display width on the side where the adjacent lane is detected and the adjacent lane is present can be widened and displayed. .. As a result, it is possible to properly understand the situation of the rear vehicle traveling in the adjacent lane.

Although the embodiments of the present invention have been described above, the embodiments are not limited by the contents of these embodiments. Further, the above-described constituent elements include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those that are in a so-called equivalent range. Furthermore, the components described above can be combined appropriately. Furthermore, various omissions, substitutions, or changes of the constituent elements can be made without departing from the scope of the above-described embodiment.

1 Display Control System 10 Left Side Camera 20 Right Side Camera 30 Left Side Monitor 40 Right Side Monitor 50 GPS Receiver 60 Memory 61 Map Information 70 Rear Camera 80 Driver Monitor 100 Display Controller (Control)
110 Bus 121 Video data acquisition unit 122 Display control unit 123 Adjacent lane information acquisition unit 124 Position information acquisition unit 125 Map information acquisition unit

Claims (9)

A video data acquisition unit that acquires video data captured by the camera that captures the left and right sides of the vehicle,
An adjacent lane information acquisition unit that acquires adjacent lane information regarding an adjacent lane of the traveling lane in which the vehicle is traveling,
The image data acquired by the image data acquisition unit is displayed on each of the left and right sides, and based on the adjacent lane information, the display on the side where the adjacent lane exists is wider than the display when the adjacent lane does not exist. A display control unit for
And a display control device. The display control unit displays the display on the side where the adjacent lane in the same traveling direction as the traveling lane exists wider than the display when the adjacent lane does not exist,
The display control device according to claim 1. The display control unit is an adjacent lane traveling in a direction opposite to the traveling direction of the traveling lane, and a display on the side where the adjacent lane movable between the traveling lane and the adjacent lane exists. Is displayed wider than the display when there is no adjacent lane,
The display control device according to claim 1. The display control unit is an adjacent lane that travels in a direction opposite to the traveling direction of the traveling lane, and a vehicle running in the traveling lane has a display on the side where the vehicle is not prohibited from protruding to the adjacent lane. Wider display than when not displayed,
The display control device according to claim 3. The adjacent lane information acquisition unit acquires the adjacent lane information of the traveling lane from the video data acquired by the video data acquisition unit,
The display control device according to claim 1. A display control device according to any one of claims 1 to 5,
A left display section for displaying video data on the left rear side of the vehicle,
Further comprising a right display unit for displaying video data on the right rear side of the vehicle,
The display control unit causes the display of the display unit on the side where the adjacent lane exists to be displayed as an image in a wider range than the display of the display unit when the adjacent lane does not exist,
Display control system. A display control device according to any one of claims 1 to 5,
A display unit for displaying video data on the left rear side of the vehicle and video data on the right rear side;
The display control unit displays the display on the side where the adjacent lane exists in a wider display range than the display when the adjacent lane does not exist,
Display control system. A video data acquisition step of acquiring video data captured by a camera that captures the left and right sides of the vehicle,
An adjacent lane information acquisition step of acquiring adjacent lane information regarding an adjacent lane of the traveling lane in which the vehicle is traveling,
The video data acquired in the video data acquisition step is displayed on each of the right and left sides, and based on the adjacent lane information, the display on the side where the adjacent lane exists is displayed wider than the display when the adjacent lane does not exist. Display control step to
And a display control method. A video data acquisition step of acquiring video data captured by a camera that captures the left and right sides of the vehicle,
An adjacent lane information acquisition step of acquiring adjacent lane information regarding an adjacent lane of the traveling lane in which the vehicle is traveling,
The video data acquired in the video data acquisition step is displayed on each of the right and left sides, and based on the adjacent lane information, the display on the side where the adjacent lane exists is displayed wider than the display when the adjacent lane does not exist. Display control step to
A display control program for causing a computer to execute.

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