JP2018149833A - Driving support device and moving body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving support device, such as an electronic mirror replacing a door mirror, with a configuration that makes a part particularly preferred to be seen visible while displaying blind spots.SOLUTION: The driving support device comprises a first camera 3 that is disposed on a side part of a movable body and that images the rear of the moving body, a second camera 4 that is deposed on a side part of the moving body and that images the rear in a range of an angle narrower than that of the first camera, and a display 6 displaying a video imaged by the first camera and a video imaged by the second camera.SELECTED DRAWING: Figure 1

Description

  One embodiment of the present invention relates to a driving support device that supports driving on a moving object such as an automobile.

  Conventionally, an automobile or the like is provided with a door mirror for confirming the rear. In recent years, in order to widen the viewing angle, an electronic mirror that captures an image captured by a camera may be employed instead of a door mirror made of a conventional mirror. Patent Document 1 discloses a device that displays a vehicle periphery captured by a camera on a display unit while correcting the periphery of the vehicle according to operation timing. Patent Document 2 discloses a device that changes a display range on a display depending on whether or not another vehicle is in the proximity range of the host vehicle. Patent Document 3 discloses an apparatus configured to display an image captured by an external camera on a monitor so that a vehicle existing in a rear side area has substantially the same size in a side mirror and a monitor.

JP 2012-227605 A Japanese Patent Laying-Open No. 2015-136056 JP 2008-22125 A

  In the above-described conventional driving support device such as an electronic mirror, there is a case where it is not possible to make a portion that is particularly desired to be visually recognized while displaying a blind spot.

  The present invention adopts the following means in order to solve the above problems. In the following description, in order to facilitate understanding of the invention, reference numerals and the like in the drawings are appended in parentheses, but each component of the present invention is not limited to these appendices. It should be construed broadly to the extent that contractors can technically understand.

One means of the present invention is to
A first camera (3) that is arranged on the side of the moving body and images the rear;
A second camera (4) disposed on the side of the mobile body and imaging the rear in a narrower angle range than the first camera;
A display unit (6) for displaying an image captured by the first camera and an image captured by the second camera;
Is a driving support device.

  According to the driving support device having the above-described configuration, it is possible to display a portion that is particularly desired to be visually recognized with the second camera while imaging and displaying the blind spot with the first camera. This makes it possible to effectively reduce the driver's blind spot.

In the driving support device, preferably,
A control unit (2) for controlling a mode of an image captured by the second camera displayed on the display unit;
The control unit performs control so that an image captured by the second camera is enlarged or reduced and displayed on the display unit.

  According to the driving support device having the above-described configuration, the driver can arbitrarily enlarge or reduce the image displayed via the second camera, so that the driver can more easily see the portion that has conventionally been a blind spot. can do.

In the driving support device, preferably,
A movement detecting unit (23) for detecting that the moving body equipped with the driving support device is moving;
When the movement detection unit detects that the moving body is moving, the control unit prohibits a change in a mode of an image captured by the second camera displayed on the display unit.

  According to the driving support apparatus having the above-described configuration, it is possible to improve the safety during driving by making it impossible to change the enlargement / reduction rate of the image captured by the second camera while moving.

In the driving support device, preferably,
The control unit controls the display unit to display an image in a range from 25 ° to 35 ° behind the image captured by the second camera.

  According to the driving support apparatus having the above configuration, the image displayed via the second camera can be made substantially the same as the area displayed by the conventional door mirror, so that the driver can check more naturally. It can be configured.

  Moreover, this invention is a moving body, such as a motor vehicle or a motorcycle, provided with one of the said driving assistance apparatuses.

  According to the mobile body having the above-described configuration, it is possible to achieve a configuration in which safety is improved by a configuration in which the driver's blind spot is reduced.

FIG. 1 is a block diagram illustrating a configuration of the driving support apparatus of the present embodiment. FIG. 2 is a diagram illustrating a viewing angle in an automobile equipped with the driving support apparatus of the present embodiment. FIG. 3 is a diagram illustrating an image displayed on the display unit in the driving support device of the present embodiment. FIG. 4 is a flowchart showing display mode adjustment processing in the driving support apparatus of the present embodiment.

An embodiment according to the present invention will be specifically described according to the following configuration with reference to the drawings. However, the embodiment described below is merely an example of the present invention and does not limit the technical scope of the present invention. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and the description may be abbreviate | omitted.
1. Embodiment 2. FIG. Supplementary matter

<1. Embodiment>
The driving support device mounted on the automobile of the present embodiment displays the image captured by mounting the wide-angle camera and the narrow-angle camera at the position of the conventional door mirror on the display unit, so that the driver (user) One of the features is that it makes it possible to grasp the surrounding situation without blind spots. Hereinafter, the present embodiment will be specifically described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a driving support apparatus mounted on an automobile or a motorcycle. As shown in FIG. 1, the driving support device of the present embodiment includes an information processing device 2, a wide-angle camera 3, a narrow-angle camera 4, an operation unit 5, and a display unit 6.

  FIG. 2 shows an automobile equipped with the driving support device of the present embodiment. As shown in FIG. 2, the automobile 1 has a door mirror 1a. The door mirror 1a is equipped with a wide-angle camera 3 and a narrow-angle camera 4 that are driving assistance devices.

<Wide-angle camera 3>
The wide-angle camera 3 is mounted on the door mirror 1 a and images the rear of the automobile 1. As shown in FIG. 2, the wide-angle camera 3 is in a range slightly wider than 90 ° from a position substantially perpendicular to the moving direction of the automobile to a position opposite to the moving direction (see A in FIG. 2). The rear of the automobile 1 is imaged. The wide-angle camera 3 is a camera provided with a wide-angle lens, for example. The wide-angle camera 3 outputs the captured image (video) to the control unit 20. The wide-angle camera 3 can adjust the shooting range under the control of the control unit 20.

<Narrow-angle camera 4>
The narrow-angle camera 4 is mounted on the door mirror 1 a and images the rear of the automobile 1. As shown in FIG. 2, the narrow-angle camera 4 images the rear of the automobile 1 within a range of about 30 ° (see B in FIG. 2) from a position opposite to the moving direction of the automobile. The range behind the automobile 1 imaged by the narrow-angle camera 4 is substantially the same as the range that can be viewed with a conventional door mirror. The narrow-angle camera 4 can image the rear of the automobile 1 in a range of 25 ° to 35 °, and the imaging range can be controlled by the control unit 20. Note that the narrow-angle camera 4 may output a part of the imaging range to the control unit 20 instead of the entire imaging range.

  The imaging range of the narrow-angle camera 4 is controlled by the control unit 20. Specifically, under the control of the control unit 20, the narrow-angle camera 4 can widen or narrow its shooting range or adjust the shooting direction. In addition, the narrow-angle camera 4 can display the shooting range enlarged or reduced by optical zoom or digital zoom under the control of the control unit 20.

<Operation unit 5>
The operation unit 5 is a key (button) or a touch panel operated by the user, converts an operation by the user into an input signal, and outputs the input signal to the control unit 20. The operation unit 5 can be in a state in which no operation by the user is accepted under the control of the control unit 20.

<Display unit 6>
The display unit 6 is a monitor disposed in the vehicle 1 and can display an image (or video) output from the display output unit 22. The display unit 6 is, for example, an LCD (liquid crystal display), an organic EL display, or the like. The image captured by the wide-angle camera 3 and the narrow-angle camera 4 is displayed on the display unit 6 under the control of the control unit 20. The display unit 6 may not only display the video imaged by the wide-angle camera 3 and the narrow-angle camera 4 but may display other information together. In addition, the display unit 6 is not necessarily arranged in the car 1 but may be arranged at the position of the door mirror 1a of the car 1. In this case, the driver uses the same method as the conventional method for the car 1. You can check the surroundings.

<Information processing apparatus 2>
The information processing apparatus 2 can control these configurations by executing data input / output with the wide-angle camera 3, the narrow-angle camera 4, the operation unit 5, and the display unit 6. The information processing apparatus 2 includes, for example, a control unit 20, a storage unit 21, a display output unit 22, and a movement detection unit 23. The information processing apparatus 2 includes an arithmetic device such as a CPU or an ASIC, and an electronic component such as a sensor.

<Storage unit 21>
The storage unit 21 is a volatile or nonvolatile memory, and is configured to be able to store various information. In particular, in the present embodiment, the storage unit 21 stores setting information related to a mode in which the wide-angle camera 3 and the narrow-angle camera 4 are displayed on the display unit 6 set by the user.

<Display output unit 22>
The display output unit 22 temporarily stores (buffers) information to be displayed on the display unit 6 under the control of the control unit 20, and outputs image data to the display unit 6. The display output unit 22 may be configured integrally with the control unit 20 or may be executed by software.

<Movement detection unit 23>
The movement detection unit 23 includes a sensor such as an acceleration sensor or an angular velocity sensor (gyro sensor), detects whether or not the automobile 1 is moving, and outputs the detection result to the control unit 20. Note that the movement detection unit 23 may be configured to determine whether or not the automobile 1 is moving from position information acquired by GPS instead of mounting the above-described sensor. Alternatively, the movement detection unit 23 may be configured to determine whether or not the automobile 1 is moving by detecting the rotation state of the tire of the automobile 1, or may detect the movement of the automobile 1 by other methods. It may be configured to do so.

<Control unit 20>
The control unit 20 is configured to be able to control the entire driving support device mounted on the automobile 1. For example, the control unit 20 controls the display mode such as the enlargement / reduction size of the wide-angle camera 3 and the narrow-angle camera 4 displayed on the display unit 6 and the video layout.

  In particular, in this embodiment, the control unit 20 determines whether or not the automobile 1 is moving by the movement detection unit 23, and the narrow-angle camera displayed on the display unit 6 when the automobile 1 is moving. 4 is prohibited. Alternatively, when it is determined that the automobile 1 is moving, the control unit 20 may be in a state in which all operations of the operation unit 5 by the driver are not accepted. Other control by the control unit 20 will be described later.

<Control of display mode on display unit 6>
Here, a specific example of the control of the display mode of the video captured by the wide-angle camera 3 and the narrow-angle camera 4 displayed on the display unit 6 will be described.

  FIG. 3 is a diagram illustrating an example of an image displayed on the display unit 6. As shown in FIG. 3, the wide-angle video (a) and the narrow-angle video (b) are displayed on the display unit 6 in substantially the same size in two stages. The display mode of the wide-angle video and the narrow-angle video on the display unit 6 may be arbitrarily determined.

  Specifically, both the video of the range captured by the wide-angle camera 3 (range A in FIG. 2) and the video of the range captured by the narrow-angle camera 4 (range B in FIG. 2) are both controlled in real time. 20 is output. The control unit 20 controls the display output unit 22 so that the video data received from the wide-angle camera 3 and the narrow-angle camera 4 is displayed on the display unit 6 in a predetermined display mode set by the driver. Note that the setting information regarding the display mode set by the driver is stored in the storage unit 21. As a result, the display unit 6 displays a rear image from the side of the automobile imaged by the wide-angle camera 3 and the narrow-angle camera 4 in a manner as shown in FIG.

<Adjustment processing of display mode on display unit 6>
Next, a process for adjusting the display mode on the display unit 6 by the driver's operation will be specifically described. FIG. 4 is a flowchart showing display mode adjustment processing on the display unit 6 in the driving support apparatus of the present embodiment.

<S100 to S110>
First, when the driver operates the operation unit 5 to adjust the display mode on the display unit 6 (S100), the control unit 20 determines whether the automobile 1 is moving via the movement detection unit 23, Or it is confirmed whether it is stopping (S110).

<S120>
When the control unit 20 determines that the automobile 1 is not moving and is stopped (Y in S110), the control unit 20 is changing the display mode on the display unit 6 by the driver operating the operation unit 5. (S120). When the driver is changing the display mode on the display unit 6 (Y in S120), the process returns to S110. That is, while the driver is changing the display mode on the display unit 6, the control unit 20 determines whether or not the automobile 1 will start without storing the setting information regarding the setting of the changed display mode in the storage unit 21. To monitor.

  There are various display modes in the display unit 6, and for example, the magnification of the video captured by the narrow-angle camera 4 can be changed. In addition, the size (ratio) of the images of the wide-angle camera 3 and the narrow-angle camera 4 displayed on the display unit 6 can be changed, and the display position on the display unit 6 can be changed. In addition, it is possible to display only one of the images of the wide-angle camera 3 or the narrow-angle camera 4 on the display unit 6.

<S130 to S140>
If the driver has finished changing the display mode on the display unit 6 (N in S120), the control unit 20 stores in the storage unit 21 setting information related to the display mode setting on the display unit 6 changed by the driver. Store (S130). And the control part 20 controls the display output part 22 to perform the display on the display part 6 with the display mode set by the driver based on the setting information stored in the storage part 21 (S140). The mode adjustment process is terminated (S160).

<S150>
On the other hand, if the automobile 1 is moving or the automobile 1 starts while the display mode is changed by the driver (N in S110), the control unit 20 displays based on the setting information already stored in the storage unit 21. In the mode, the screen display on the display unit 6 is executed (S150), and the display mode adjustment processing is ended (S160).

  In the driving support apparatus of the present embodiment as described above, images captured by both the wide-angle camera 3 and the narrow-angle camera 4 can be displayed on the display unit 6. For this reason, it is possible to confirm the rear portion to be visually recognized as in the conventional case by using the image from the narrow-angle camera 4 while eliminating the blind spot from the image from the wide-angle camera 3.

  In addition, the driving support device according to the present embodiment does not realize the functions of the wide-angle camera 3 and the narrow-angle camera 4 with a single camera, but has a separate camera. Therefore, it is preferable in that the amount of processing in the control unit can be reduced as compared with a configuration in which a wide-angle image and a narrow-angle image are displayed based on an image captured by one camera.

  Further, in the driving support device of the present embodiment capable of executing the above-described processing, the video captured by the narrow-angle camera 4 can be enlarged or reduced and displayed on the display unit 6, so that the video of the narrow-angle camera 4 is driven. The hand can be arbitrarily enlarged or reduced. As a result, the blind spot of the driver can be effectively reduced and safety can be improved.

  Moreover, in the driving assistance apparatus of this embodiment, since the display mode on the display unit 6 cannot be changed when the automobile 1 is not stopped, safety during driving can be improved.

  In the driving support device of the present embodiment, the display unit 6 can display an image in any range between 25 ° and 35 ° behind the automobile 1 captured by the narrow-angle camera 4. Therefore, the image of the narrow-angle camera 4 displayed on the display unit 6 can be made substantially the same as the image displayed on the conventional door mirror, and the driver can check the surroundings more naturally. Can do.

  In addition, the automobile 1 equipped with the driving support device of the present embodiment can be configured to have improved safety by reducing the blind spot of the driver.

<2. Supplementary items>
The specific description of the embodiment of the present invention has been given above. The above description is merely an embodiment, and the scope of the present invention is not limited to this embodiment, and is broadly interpreted to the extent that a person skilled in the art can grasp based on the same technical idea. is there.

  For example, in the embodiment, the automobile 1 has been described as an example, but the driving support device of the present invention is not only applied to the automobile, but can also be applied to a moving body such as a motorcycle, a ship, or an aircraft. . In the present invention, the vehicle that can be moved by the driver's operation is referred to as a “moving body”.

  In the above embodiment, the wide-angle camera 3 and the narrow-angle camera 4 are both mounted on the door mirror 1a. However, the wide-angle camera 3 and the narrow-angle camera 4 may be disposed on the side of a moving body such as the automobile 1, and are not necessarily mounted on the door mirror 1a. There is no. For example, you may arrange | position in the location where the door mirror in the motor vehicle which does not mount a door mirror was arrange | positioned, or may arrange | position at the corner of the front side of a motor vehicle.

  Further, the wide-angle camera 3 and the narrow-angle camera 4 do not necessarily have to be arranged close to each other. For example, the wide-angle camera 3 may be arranged at the corner portion at the front side position of the automobile, and the narrow-angle camera 4 may be arranged at the corner portion at the rear side position of the automobile. This arrangement is preferable in that the blind spot can be more effectively reduced.

  The driving support device of the present invention is suitably used as a surrounding safety confirmation device in place of a mirror in an automobile or a motorcycle.

DESCRIPTION OF SYMBOLS 1 ... Automobile 1a ... Door mirror 2 ... Information processing apparatus 20 ... Control part 21 ... Memory | storage part 22 ... Display output part 23 ... Movement detection part 3 ... Wide-angle camera 4 ... Narrow-angle camera 5 ... Operation part 6 ... Display part

Claims (5)

A first camera that is disposed on a side of the moving body and images the rear;
A second camera that is disposed on a side of the movable body and images the rear in a narrower angle range than the first camera;
A display unit for displaying an image captured by the first camera and an image captured by the second camera;
A driving support apparatus comprising: A control unit for controlling a mode of an image captured by the second camera displayed on the display unit;
The control unit controls to enlarge or reduce the image captured by the second camera and display the image on the display unit;
The driving support device according to claim 1. It further comprises a movement detection unit that detects that the moving body equipped with the driving support device is moving,
When the movement detection unit detects that the moving body is moving, the control unit prohibits a change in a mode of an image captured by the second camera displayed on the display unit,
The driving support device according to claim 1 or 2. The control unit controls the display unit to display an image in a range from 25 ° to 35 ° behind the image captured by the second camera;
The driving assistance device according to any one of claims 1 to 3.   A mobile body provided with the driving assistance apparatus of any one of Claims 1-4.

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