JP2015141490A - Vehicle information display control device and vehicle information display control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle information display control device capable of displaying an object instruction image for intuitively recognizing a distance between a vehicle and an object in the visual field of a driver.SOLUTION: A vehicle information display system includes: an in-vehicle camera 1 for photographing the periphery of a vehicle; a distance measurement sensor 2 for measuring a distance to an object in the periphery of the vehicle; a display device 3 for displaying information in the visual field of the driver of the vehicle; and a vehicle information control device 10 for controlling them. An object detection part 11 of the vehicle information display control device 10 detects the object in the periphery of the vehicle on the basis of an image photographed by the in-vehicle camera 1, and measures a distance to the detected object by using a distance measurement sensor 2. A control part 14 of the vehicle information display control device 10 displays an object instruction image indicating an object detected by the object detection part 11 in the visual field of the driver with a focal distance corresponding to the distance to the object by using the display device 3.

Description

  The present invention relates to a vehicle information display control device that controls a display device that displays information in the field of view of a driver of a vehicle, and more particularly to a technique for displaying an object instruction image indicating an object existing around the vehicle.

  A head-up display (HUD) is known as a display device that displays information in the field of view of a driver of a vehicle. The head-up display can directly display information in the driver's field of view by displaying information on the windshield or a transparent screen that the driver can see.

  Further, for example, Patent Document 1 below discloses a head-up display capable of simultaneously displaying a plurality of images having different focal lengths (display depths).

JP 2004-168230 A

  One piece of information displayed by the head-up display is an object instruction image (for example, a warning frame displayed so as to surround the object) indicating an object existing in front of the vehicle. Since the object instruction image helps the driver to recognize the presence of the object, a display method that can more intuitively recognize the positional relationship between the vehicle and the object is desired.

  The present invention has been made to solve the above-described problems, and is a vehicle information display control capable of displaying an object instruction image capable of intuitively recognizing a distance between a vehicle and an object in a driver's field of view. An object is to provide an apparatus.

  The vehicle information display control device according to the present invention detects an object around the vehicle, obtains information on the distance to the detected object, and a display for displaying information in the field of view of the driver of the vehicle And a control unit that displays an object instruction image indicating the object detected by the object detection unit at a focal length corresponding to the distance to the object in the driver's field of view.

  According to the present invention, since the object indication image is displayed with a focal length corresponding to the distance to the object indicated by the object indication, the driver who views the object indication image can intuitively recognize the distance to the object. Can do.

It is a figure which shows the structure of the vehicle information display system which concerns on Embodiment 1. FIG. 4 is a diagram for explaining a display layer of a display device in the vehicle information display system according to Embodiment 1. FIG. 4 is a diagram for explaining a display layer of a display device in the vehicle information display system according to Embodiment 1. FIG. 4 is a flowchart showing the operation of the vehicle information display control apparatus according to the first embodiment. It is a figure which shows the example of the positional relationship of a vehicle and an object (pedestrian). 3 is a diagram conceptually illustrating a display example of an object instruction image in the vehicle information display system according to Embodiment 1. FIG. 6 is a diagram illustrating a display example of an object instruction image in the vehicle information display system according to Embodiment 1. FIG. It is a figure which shows the example of the positional relationship of a vehicle and an object (pedestrian). 3 is a diagram conceptually illustrating a display example of an object instruction image in the vehicle information display system according to Embodiment 1. FIG. 6 is a diagram illustrating a display example of an object instruction image in the vehicle information display system according to Embodiment 1. FIG. It is a figure which shows the example of a display of the object instruction | indication image in the vehicle information display system which concerns on Embodiment 2. FIG. It is a figure which shows the example of a display of the object instruction | indication image in the vehicle information display system which concerns on Embodiment 2. FIG. It is a figure which shows the structure of the vehicle information display system which concerns on Embodiment 3. FIG. 12 is a flowchart showing the operation of the vehicle information display control apparatus according to the third embodiment. It is a figure which shows the structure of the vehicle information display system which concerns on Embodiment 4. FIG. 14 is a flowchart showing the operation of the vehicle information display control apparatus according to the fourth embodiment. It is a figure for demonstrating the example of the display layer of the display apparatus in the vehicle information display system which concerns on Embodiment 5. FIG. It is a figure for demonstrating the example of the display layer of the display apparatus in the vehicle information display system which concerns on Embodiment 5. FIG. It is a figure for demonstrating the example of the display layer of the display apparatus in the vehicle information display system which concerns on Embodiment 5. FIG.

<Embodiment 1>
FIG. 1 is a diagram showing a configuration of a vehicle information display system according to the first embodiment. The vehicle information display system includes a vehicle information display control device 10, an in-vehicle camera 1, a distance measurement sensor 2, a display device 3, and an audio output device 4 connected thereto. Here, the vehicle-mounted camera 1, the distance measurement sensor 2, the display device 3, and the audio output device 4 are configured to be externally attached to the vehicle information display control device 10, but some or all of them are vehicle information display control devices. 10 may be integrated. In the following description, it is assumed that the vehicle information display control device 10 is mounted on a vehicle. However, the vehicle information display control device 10 is not limited to being always fixed to the vehicle, but is a portable device. May be.

  The in-vehicle camera 1 images the front of a vehicle (hereinafter also referred to as “own vehicle”) on which the vehicle information display control device 10 is mounted. The distance measuring sensor 2 measures the distance from the own vehicle of an object in front of the own vehicle. The display device 3 displays information in the field of view of the driver of the own vehicle, and is configured by a head-up display, for example. The audio output device 4 is a speaker or the like that outputs audio to the driver of the own vehicle. The vehicle information display control device 10 controls the in-vehicle camera 1, the distance measurement sensor 2, the display device 3, and the audio output device 4.

  As shown in FIG. 1, the vehicle information display control device 10 includes an object detection unit 11, a recognition unit 12, a determination unit 13, and a control unit 14. The vehicle information display control device 10 is configured using a computer, and the object detection unit 11, the recognition unit 12, the determination unit 13, and the control unit 14 are realized by the computer operating according to a program.

  The object detection unit 11 acquires an image in front of the host vehicle captured by the in-vehicle camera 1 and detects an object existing in front of the host vehicle from the image. Further, the object detection unit 11 causes the distance measurement sensor 2 to measure the distance to the detected object, and acquires information on the distance.

  The recognizing unit 12 recognizes the type of an object existing in front of the host vehicle (for example, a pedestrian, a bicycle, a motorcycle, a car, etc.). The object detecting unit 11 analyzes an image captured by the in-vehicle camera 1. An object type determining unit 121 that determines the type of the detected object (an object existing ahead of the host vehicle) is provided.

  Based on the object type determined by the object type determination unit 121 of the recognition unit 12, the determination unit 13 determines whether or not the object detected by the object detection unit 11 is the target indicated by the object instruction image. In the first embodiment, the determination unit 13 sets a specific type of object as a target indicated by the object instruction image. Specifically, pedestrians, bicycles, and motorcycles are assumed to be targets indicated by the object instruction image.

  The control unit 14 controls each element in the vehicle information display control device 10 and the in-vehicle camera 1, the distance measurement sensor 2, the display device 3, and the audio output device 4 connected to the vehicle information display control device 10. The control unit 14 uses the display device 3 to display an object instruction image indicating the object detected by the object detection unit 11 in the field of view of the driver of the own vehicle. The target is determined by the determination unit 13. In the present embodiment, among the objects detected by the object detection unit 11, object instruction images indicating pedestrians, bicycles, and motorcycles are displayed in the driver's field of view. Further, the control unit 14 can cause the sound output device 4 to output a warning sound, for example, when the host vehicle approaches the object indicated by the object instruction image.

  The control unit 14 includes a focal length control unit 141 that controls the focal length of the object instruction image displayed on the display device 3, and a display control unit 142 that controls the display mode (shape, size, color, etc.) of the object instruction image. It has. The focal distance control unit 141 controls the display device 3 so that the object instruction image is displayed at a focal distance corresponding to the distance from the host vehicle to the object indicated by the object instruction image. That is, when displaying the object instruction image indicating the object far from the own vehicle, the control unit 14 displays the object instruction image indicating the object near the own vehicle by causing the focal distance from the driver to be displayed far away. Is displayed with the focal distance from the driver close. In the following description, “focal length” means the focal length as viewed from the driver.

  Here, the focal length of the object instruction image displayed by the display device 3 will be described. The display device 3 has a plurality of display layers for displaying images, and these display layers have different focal lengths.

  FIG. 2 is a diagram conceptually showing the display layer of the display device 3. In Embodiment 1, the display device 3 has three display layers (first to third display layers L1 to L3) having different focal lengths, and the focal length of the first display layer L1 is 2 m, It is assumed that the focal length of the second display layer L2 is 5 m and the focal length of the third display layer L3 is 10 m. The arrows in FIG. 2 indicate the traveling direction of the vehicle, that is, the line of sight of the driver of the vehicle. From the driver, the first to third display layers L1 to L3 appear to be superimposed as shown in FIG. 3 (the outlines of the first to third display layers L1 to L3 shown by the dotted lines in FIG. 3 are actually The image (A) displayed on the first display layer L1 is 2 m ahead, the image (B) displayed on the second display layer L2 is 5 m ahead, and the image displayed on the third display layer L3. (C) seems to exist 10m away.

  Next, operation | movement of the vehicle information display control apparatus 10 which concerns on Embodiment 1 is demonstrated. FIG. 4 is a flowchart showing the operation.

  When the vehicle information display control device 10 starts operating, first, the object detection unit 11 acquires an image obtained by photographing the front of the vehicle from the in-vehicle camera 1 (step S1), and detects an object ahead of the vehicle based on the image. (Step S2). The object detection unit 11 further measures the distance to the detected object using the distance measurement sensor 2 (step S3).

  Next, the object type determination unit 121 of the recognition unit 12 determines the type of the detected object (step S4). Based on the type of the object determined by the object type determination unit 121, the determination unit 13 selects a specific type of object (pedestrian, bicycle, motorcycle) from the objects detected by the object detection unit 11, and displays the object instruction image. (Step S5). At this time, if there is no target indicated by the object instruction image (NO in step S6), the process returns to step S1.

  If there is a target indicated by the object instruction image (YES in step S6), in the control unit 14, the display control unit 142 determines the mode (shape, color, size, etc.) of the object instruction image (step S7), and the focal length. The control unit 141 determines the focal length of the object instruction image according to the distance from the own vehicle to the object indicated by the object instruction image (step S8).

  Then, the control part 14 displays the object instruction | indication image which shows each object (a pedestrian, a bicycle, a motorcycle) on a driver | operator's visual field using the display apparatus 3 (step S9). At this time, the control unit 14 controls the display device 3 so that the object instruction image in the mode determined by the display control unit 142 is displayed at the focal length determined by the focal length control unit 141.

  The vehicle information display control device 10 repeatedly executes the above operation.

  Hereinafter, a specific display example of the object instruction image is shown. Here, the focal length control unit 141 sets the focal length of the object instruction image indicating the object whose distance from the own vehicle is less than 10 m to 2 m, and the object instruction indicating the object whose distance from the own vehicle is 10 m or more and less than 20 m. It is assumed that the focal length of the image is set to 5 m, and the focal length of the object instruction image indicating an object whose distance from the own vehicle is 20 m or more is set to 10 m. That is, an object instruction image indicating an object whose distance from the own vehicle is less than 10 m is displayed on the first display layer L1, and an object instruction image indicating an object whose distance from the own vehicle is 10 m or more and less than 20 m is the second display layer L2. The object instruction image indicating an object having a distance of 20 m or more from the own vehicle is displayed on the third display layer L3.

  For example, as shown in FIG. 5, pedestrians P1 to P3 exist in front of the host vehicle, and the distance from the host vehicle is 5m for pedestrian P1, 15m for pedestrian P2, and 25m for pedestrian P3. . In this case, as shown in FIG. 6, the vehicle information display control apparatus 10 displays the object instruction image F1 indicating the pedestrian P1 on the first display layer L1 (focal length 2 m), and displays the object instruction image F2 indicating the pedestrian P2. Is displayed on the second display layer L2 (focal length 5 m), and the display device 3 is controlled so that the object instruction image F3 indicating the pedestrian P3 is displayed on the third display layer L3 (focal length 10 m). In addition, since the 1st-3rd display layers L1-L3 have overlapped, it looks like FIG. 7 from a driver | operator.

  Assume that the host vehicle moves forward from the state of FIG. 5 and the positional relationship between the host vehicle and pedestrians P1 to P3 has changed to the state of FIG. In this state, the vehicle is located on the side of the vehicle of the pedestrian P1, and pedestrians P2 and P3 exist in front of the vehicle. The distance from the vehicle is 5 m for pedestrian P2 and 15 m for pedestrian P3. In this case, as shown in FIG. 9, the vehicle information display control device 10 displays the object instruction image F2 indicating the pedestrian P2 on the first display layer L1 (focal length 2 m), and displays the object instruction image F3 indicating the pedestrian P3. Is displayed on the second display layer L2 (focal length 5 m) (the pedestrian P1 is out of the target indicated by the object instruction image). At this time, it looks to the driver as shown in FIG. Thus, when the positional relationship (distance) between the own vehicle and the object changes, the focal length (display layer) of the object instruction image changes accordingly.

  According to the vehicle information display system according to the first embodiment, the object instruction image displayed on the driver's field of view by the display device 3 is displayed with a focal length corresponding to the distance from the own vehicle to the object indicated by the object instruction image. Therefore, an effect that the driver who views the object instruction image can intuitively recognize the distance to the object can be obtained.

  In the above description, the focal lengths of the three display layers included in the display device 3 are 2 m, 5 m, and 10 m, respectively. However, the focal lengths of the display layers are not limited thereto, and may be, for example, 1 m, 2 m, and 3 m. . Further, the number of display layers is not limited to three and may be any number of two or more. Further, the type (specific type) of the target object indicated by the object instruction image is not limited to pedestrians, bicycles, and motorcycles, and one or more types of objects may be targets indicated by the object instruction image. . 7 and 10, only the object instruction image indicating the pedestrian is displayed. However, when a plurality of object instruction images indicating different types of objects are displayed, the object instruction image is displayed for each object type. The display mode may be changed.

  Further, when the determination unit 13 determines the target indicated by the object instruction image, the distance to each object may be considered. For example, an object that is extremely far away from the host vehicle (for example, a position that is more than 50 m away) is less likely to be informed to the driver using the object instruction image, and may be excluded from the target indicated by the object instruction image. .

  Further, for example, an object at a position very close to the own vehicle (for example, a position within 5 m) may be added to the target indicated by the object instruction image even if it is not a specific type. In the above example, the object (specific type of object) indicated by the object instruction image is a pedestrian, a bicycle, or a motorcycle, and the car is not included. The reason is that if the car is included, it runs in front of the own vehicle. This is because an object instruction image indicating the car (front vehicle) that is being operated is always displayed, and it is difficult for the driver to look forward. However, even in that case, when the distance between the host vehicle and the preceding vehicle becomes extremely short, the preceding vehicle may be added to the target indicated by the object instruction image. When the inter-vehicle distance with the preceding vehicle becomes narrower, an object instruction image indicating the preceding vehicle is displayed, and the driver can be alerted not to make a rear-end collision with the preceding vehicle.

  In the present embodiment, the camera is used as the means for detecting the object, but the object may be detected using, for example, a millimeter wave radar. The display device 3 is not limited to an existing head-up display, and may be any device that can display images with different focal lengths in the driver's field of view. For example, if a transmissive 3D display device is realized, it is considered that a display device that can be provided on the windshield of a vehicle to obtain the same visual effect as a head-up display can be constructed. The present invention can also be applied to such a display device.

  Further, in the present embodiment, the object in front of the vehicle is the target indicated by the object instruction image, but the object behind or laterally of the vehicle may be the target indicated by the object instruction image. For example, it can be applied to a head-up display that displays an image on a rear window or side window of a vehicle. Further, if a head-mounted head-up display whose display contents change according to the direction of the driver's face is realized, the present invention is applied to the object around the entire vehicle as an object indicated by the object instruction image. It is considered possible.

<Embodiment 2>
In the first embodiment, the focal length of the object instruction image is changed according to the distance to the object. However, in the second embodiment, the display mode (shape, size, color, etc.) of the object instruction image is further changed to the object. Change according to distance. That is, in the vehicle information display control device 10 of the present embodiment, the display control unit 142 considers the distance from the own vehicle to the object indicated by the object instruction image when determining the aspect of the object instruction image. For example, the color of the object instruction image indicating an object that is close to the own vehicle is red, the color of the object instruction image indicating an object that is far from the own vehicle is green, and the object instruction image indicating an object at an intermediate distance The color is determined to be yellow.

  In the specific examples (FIGS. 5 to 10) shown in the first embodiment, the color of the object instruction image indicating an object whose distance from the own vehicle is less than 10 m is red, and the object whose distance from the own vehicle is 10 m or more and less than 20 m When the object indicating image indicating yellow is defined as yellow and the object indicating image indicating an object having a distance of 20 m or more from the own vehicle is defined as green, the object indicating image displayed on the first display layer L1 (focal length 2 m) is The object instruction image displayed on red, the second display layer L2 (focal length 5 m) is displayed in yellow, and the object instruction image displayed on the third display layer L3 (focal distance 10 m) is displayed in green.

  If the positional relationship between the host vehicle and the pedestrians P1 to P3 is as shown in FIG. 5, it looks like FIG. 11 to the driver, and if it is as shown in FIG. 8, it looks like FIG. When the state of FIG. 5 changes to the state of FIG. 8, the object indication image F2 of the pedestrian P2 changes from yellow to red, and the color of the object indication image F3 indicating the pedestrian P3 changes from green to yellow. I understand. That is, the color of the object instruction image changes according to the distance between the vehicle and the object.

  Here, an example is shown in which the color of the object instruction image is changed according to the distance from the host vehicle to the object, but the shape, size, line thickness, and the like of the object instruction image may also be changed. Various methods are conceivable for changing the display mode of the object indication image, but it is preferable to make the object indication image indicating this more conspicuous as the object is closer to the vehicle. Accordingly, the driver can be more surely aware of the presence of an object close to the own vehicle. Specifically, the closer the object is to the vehicle, the larger the size of the object instruction image, the thicker the line, and the higher the brightness.

<Embodiment 3>
In the first embodiment, all objects of a specific type detected by the object detection unit 11 are targets to be indicated by the object instruction image. However, an object outside the road on which the vehicle is traveling (for example, a sidewalk) , The need to inform the driver of its existence is considered low. Therefore, in the third embodiment, only objects existing inside the road on which the host vehicle is traveling are set as targets to be indicated by the object instruction image. That is, an object outside the road on which the vehicle is traveling is excluded from the target indicated by the object instruction image.

  FIG. 13 is a diagram illustrating a configuration of the vehicle information display system according to the third embodiment. In FIG. 13, elements having the same functions as those shown in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.

  In the vehicle information display system of the third embodiment, the recognition unit 12 of the vehicle information display control device 10 analyzes the image captured by the in-vehicle camera 1 and recognizes the width of the road on which the vehicle is traveling. 122 is provided. The width of the road can be recognized by detecting a guard rail, a line on the road, a step on the side of the road, and the like.

  In addition to the object type recognized by the object type determination unit 121, the determination unit 13 also sets an object to be indicated by the object instruction image based on the positional relationship between the object and the road recognized by the road recognition unit 122. To decide. Specifically, the determination unit 13 sets specific types of objects (pedestrians, bicycles, and motorcycles) located in the road on which the host vehicle is traveling as targets to be indicated by the object instruction image.

  FIG. 14 is a flowchart showing the operation of the vehicle information display control apparatus 10 according to the third embodiment. In FIG. 14, steps that perform the same processing as that shown in FIG. 4 are given the same reference numerals, and descriptions thereof are omitted.

  In the third embodiment, following the process in which the object type determination unit 121 determines the type of object (step S4), the road recognition unit 122 performs a process of recognizing the width of the road on which the vehicle is traveling. (Step S10). Then, the determination unit 13 determines a target indicated by the object instruction image based on the object type determined by the object type determination unit 121 and the positional relationship between the road width and the object recognized by the road recognition unit 122. That is, a specific type of object (pedestrian, bicycle, motorcycle) existing in the road on which the vehicle is traveling is determined as a target indicated by the object instruction image (step S11).

  In the vehicle information display system according to the third embodiment, since an object outside the road on which the vehicle is traveling is excluded from the target indicated by the object instruction image, as a result, the object existing inside the road is shown. The driver can easily recognize the object instruction image. An object existing inside the road on which the host vehicle is traveling is highly effective because it has a high possibility of affecting the traveling of the host vehicle and allows the driver to recognize its presence more reliably.

<Embodiment 4>
In Embodiment 3, the object outside the road on which the vehicle is traveling is excluded from the object indicated by the object instruction image. For example, when a pedestrian enters the road from the sidewalk to cross the road, In some cases, a motorcycle enters the road from the side at an intersection. In such a case, it is preferable that the driver recognizes an object entering the road in advance. Therefore, in the fourth embodiment, an object that is predicted to enter the inside of the road even if the vehicle is present outside the traveling road is set as a target indicated by the object instruction image.

  FIG. 15 is a diagram illustrating a configuration of a vehicle information display system according to the fourth embodiment. In FIG. 15, elements having the same functions as those shown in FIG. 13 are given the same reference numerals, and descriptions thereof are omitted.

  In the vehicle information display system of the fourth embodiment, the determination unit 13 of the vehicle information display control device 10 includes an object position prediction unit 131 that predicts a change (movement) of the position of the object detected by the object detection unit 11. . The movement of the object can be predicted by, for example, comparing the current image captured by the in-vehicle camera 1 with a past image and detecting how the position of each object has changed.

  In addition to the specific types of objects (pedestrians, bicycles, and motorcycles) that are located in the road on which the vehicle is traveling, the determination unit 13 may be an object that is likely to enter the road on which the vehicle is traveling, Specifically, an object moving from the outside to the inside of the road is also set as a target indicated by the object instruction image.

  FIG. 16 is a flowchart showing the operation of the vehicle information display control apparatus 10 according to the fourth embodiment. In FIG. 16, steps that perform the same processes as those shown in FIG. 14 are given the same reference numerals, and descriptions thereof are omitted.

  In the fourth embodiment, the determination unit 13 performs a process (step S11) for determining a specific type of object (pedestrian, bicycle, motorcycle) present on the road on which the vehicle is traveling as a target indicated by the object instruction image. Subsequently, the object position prediction unit 131 performs a process of detecting the movement of each object and predicting a change in the position (step S12). Then, the determination unit 13 adds an object that is likely to enter the road on which the vehicle is traveling to the target indicated by the object instruction image (step S13).

  Note that the object to be added to the target indicated by the object instruction image in step S13 need not be limited to a specific type of object (pedestrian, bicycle, motorcycle). For example, it is highly necessary for the driver to recognize a car entering the road from the side at an intersection.

  In the vehicle information display system of the fourth embodiment, an object that is likely to enter the road on which the host vehicle is traveling is added to the target indicated by the object instruction image. If the object enters the inside of the road on which the vehicle is traveling, there is a high possibility of affecting the traveling of the vehicle, but it is very possible because the driver can recognize the possibility in advance. It is valid.

<Embodiment 5>
In the first embodiment, the focal length of each display layer included in the display device 3 is fixed, but may be variable. When the focal length of the display layer is fixed, two or more display layers are required to implement the present invention to change the focal length. However, if a display layer with a variable focal length is used, one display layer can be used. It can also be implemented.

  For example, consider a case where only one display layer L1 whose focal length can be changed within a range of 2 m to 10 m is used as shown in FIG. When there is one object to be indicated by the object instruction image, the focal length of the display layer L1 is determined so as to be proportional to the distance from the own vehicle to the object, and the object instruction image is displayed on the display layer L1. Good. On the other hand, when there are a plurality of objects to be indicated by the object instruction image, the focal length of the display layer L1 is determined so as to be proportional to the distance from the own vehicle to the nearest object, and the plurality of object instruction images are displayed on the display layer L1. Should be displayed. This is because an object closer to the own vehicle usually has a greater influence on the traveling of the own vehicle and is considered to be more important.

  Further, consider the case of using two sheets of the first display layer L1 and the second display layer L2 that can change the focal length in the range of 2 m to 10 m as shown in FIG. In this case, for example, the focal length of the first display layer L1 is determined to be proportional to the distance from the own vehicle to the nearest object, and the focal length of the second display layer L2 is the distance from the own vehicle to the second nearest object. It is conceivable that the object indication image of the object closest to the host vehicle is displayed on the first display layer L1, and all other object indication images are displayed on the second display layer L2.

  Further, as shown in FIG. 19, a case where two sheets of the first display layer L1 that can change the focal length in the range of 2 m to 5 m and the second display layer L2 that can change the focal length in the range of 5 m to 10 m are used. Think. In this case, for example, the focal length of the first display layer L1 is determined to be proportional to the distance to the nearest object in the range of less than 10 m from the own vehicle, and the focal length of the second display layer L2 is 10 m or more from the own vehicle. The first display layer L1 displays an object instruction image of an object that is less than 10 m from the own vehicle, and the second display layer L2 displays the object from the own vehicle. It is conceivable to display an object instruction image of an object 10 m or more away.

  The fifth embodiment can be applied to any of the first to fourth embodiments. Further, three or more display layers having variable focal lengths may be used. Further, a display layer having a variable focal length and a display layer having a fixed focal length may be used in combination.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  DESCRIPTION OF SYMBOLS 1 Car-mounted camera, 2 Distance measuring sensor, 3 Display apparatus, 4 Voice output device, 10 Vehicle information display control apparatus, 11 Object detection part, 12 Recognition part, 13 Judgment part, 14 Control part, 121 Object type judgment part, 122 Road Recognition unit, 131 Object position prediction unit, 141 Focal length control unit, 142 Display control unit, L1 to L3 display layer, P1 to P3 Pedestrian, F1 to F3 Object indication image.

Claims (8)

An object detection unit that detects an object around the vehicle and acquires information on a distance to the detected object;
Using a display device that displays information in the field of view of the driver of the vehicle, an object instruction image indicating the object detected by the object detection unit is displayed in the field of view of the driver, and a focal length corresponding to the distance to the object A control unit to be displayed in
A vehicle information display control device. The vehicle information display control device according to claim 1, wherein the control unit changes a color of the object instruction image according to a distance to an object indicated by the object instruction image. The vehicle information display control device according to claim 1, wherein the control unit displays the object instruction image in a more conspicuous manner as the distance to the object indicated by the object instruction image becomes shorter. The said control part makes the object which is judged that it exists in the inside of the road where the said vehicle is driving | running among the objects which the said object detection part detects as the object shown by the said object instruction | indication image. The vehicle information display control device according to any one of the above. An object position prediction unit that predicts a change in the position of the object detected by the object detection unit;
5. The vehicle according to claim 4, wherein the control unit adds the object predicted by the object position prediction unit to enter inside from the outside of the road on which the vehicle is traveling to a target indicated by the object instruction image. Information display control device. The vehicle information display control apparatus according to any one of claims 1 to 5, wherein the objects indicated by the object instruction image include at least a pedestrian, a bicycle, and a motorcycle. The vehicle information display control device according to claim 6, wherein the object indicated by the object instruction image further includes an automobile within a certain distance from the vehicle. (A) a step in which the object detection unit detects an object around the vehicle and measures a distance to the detected object;
(B) a step of displaying an object instruction image indicating an object detected by the object detection unit in a field of view of a driver of the vehicle at a focal length corresponding to the distance to the object;
A vehicle information display control method.

Images