JP2015074316A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for vehicle to which cameras, each of which is capable of imaging a region being a blind spot created by a window pillar, can be simply attached without considering rigidity aspect of a vehicle body.SOLUTION: Out of two cameras 15, 18, the camera 15 images a region being a blind spot blocked by an A-pillar 55R on a driver's seat side, and is attached to a cover part 51a of a right side-mirror 51. On the other hand, the camera 18 images a region being a blind spot blocked by an A-pillar 55L on a front passenger seat side, and is attached to a cover part 53a of a left side-mirror 53. Displays 30, 32 are attached to cabin inner sides of the A-pillars 55R, 55L, and display images captured by the cameras 15, 18 during an operation of an engine.

Description

  The present invention relates to a vehicle display device mounted on a vehicle.

  Conventionally, a frame part (A pillar) provided between a windshield of an automobile and door parts on both the driver's seat and the passenger's seat side, when the driver looks at the front of the vehicle and its surroundings when driving, The area obstructed by the A pillar was a blind spot.

  As a prior art of this type, there is known a device that captures a blind spot of a driver with a camera attached to a vehicle and displays a captured image on a display in a vehicle interior (see Patent Documents 1 and 2). .

JP 2008-174212 A JP 2008-213649 A

  However, the conventional vehicle display device has the following problems. In Patent Document 1, the camera is attached to the outside of the front pillar (A pillar). In this case, in order to mount the camera, it is necessary to make a hole in the frame portion, which may reduce the rigidity of the vehicle body. In addition, when it was installed later as additional equipment, a large-scale work was required.

  In Patent Document 2, the camera is provided at the center of the vehicle interior (for example, the upper edge of the front windshield near the rearview mirror). In this case, it is difficult to image a blind area generated by the A pillars on the left and right sides, and mechanical parts such as a motor for changing the imaging direction of the camera are required.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to easily attach a camera capable of photographing a blind spot generated by a window column without considering the rigid surface of the vehicle body. The object is to provide a display device for a vehicle.

  Another object of the present invention is to provide a vehicular display device that can perform display with high visibility without performing image correction processing on a captured image.

In order to achieve the above-described object, the vehicle display device according to the present invention is characterized by the following (1) to (6).
(1) A vehicle display device that is mounted on a vehicle and that is blocked by a window column that is a frame portion provided between a windshield and a door portion, and displays a blind spot when viewed from the driver. And
A camera that is attached to a side mirror of the vehicle and shoots the area that becomes the blind spot;
A display attached to the interior side of the window column;
With
An image taken by the camera is displayed on the display.
A display device for a vehicle.
(2) The vertical height of the camera attached to the side mirror is substantially equal to the height of the display attached to the interior side of the window column.
The vehicle display device as described in (1) above, wherein
(3) The side mirror is provided to be rotatable about a vertical axis,
The camera is attached to the side mirror so as to be in a position close to the display when the side mirror is rotated and expanded.
The vehicle display device as described in (2) above, wherein
(4) The camera and the display are respectively arranged on both the driver seat side and the passenger seat side of the vehicle.
The vehicle display device according to any one of (1) to (3) above, characterized in that:
(5) When the engine of the vehicle is operating, the display is in a display state, and when the engine is stopped, the display is turned off.
The vehicle display device according to any one of (1) to (4) above, wherein
(6) The front surface of the camera is exposed from a window formed on the surface of the cover part so as to have an angle of view that covers the area serving as the blind spot, which is built in the cover part of the side mirror.
The vehicle display device according to any one of the above (1) to (5), characterized in that:

According to the vehicle display device having the configuration (1), since the camera is attached to the side mirror, the blind spot generated by the window pillar is considered without considering the rigid surface of the vehicle body as compared with the case of being attached to the window pillar. You can easily attach a camera that can take pictures. Moreover, it can be easily retrofitted as additional equipment.
According to the vehicular display device having the configuration (2), it is possible to easily display a captured image without correcting it by making the mounting position of the camera and the height of the display substantially equal.
According to the vehicle display device having the configuration of (3) above, the camera and the display are arranged at substantially the same height and are arranged close to each other, so that the visibility can be improved without performing image correction processing on the captured image. Can be displayed. Thereby, in addition to displaying in real time, the configuration of the apparatus can be simplified.
According to the vehicular display device having the configuration (4), it is possible to visually recognize the blind spots that are generated on both the driver seat side and the passenger seat side.
According to the vehicle display device having the configuration (5), the display is set to the display state while the engine is operating, and the display is turned off when the engine is stopped. Therefore, power consumption can be suppressed without wasteful display. .
According to the vehicular display device having the configuration (6), the camera is built in the cover part of the side mirror, and the camera is mounted on the surface of the cover part so that the front surface of the camera is exposed. However, it can suppress that design property is impaired.

  According to the present invention, since the camera is attached to the side mirror, a camera capable of photographing a blind spot region caused by the window pillar is easily attached without considering the rigid surface of the vehicle body as compared with the case of attaching to the window pillar. be able to. Moreover, it can be easily retrofitted as additional equipment.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a block diagram illustrating a configuration of a vehicle display device 1 according to the present embodiment. FIGS. 2A and 2B are views showing the appearance of the vehicle 5 to which the two cameras 15 and 18 are attached in the vehicle display device 1 of the present embodiment. 3 (A) and 3 (B) are diagrams showing the arrangement of the display 30 attached to the A pillar 55 in the vehicle interior in the vehicle display device 1 of the present embodiment. 4A and 4B are diagrams for explaining the positional relationship between the cameras 15 and 18 and the displays 30 and 32 in the vehicle display device 1 of the present embodiment. FIG. 5 is a flowchart showing a display operation procedure of the vehicle display device 1 of the present embodiment. FIGS. 6A and 6B are diagrams showing screens of the displays 30 and 32 in the vehicle display device 1 of the present embodiment.

  A vehicle display device according to an embodiment of the present invention will be described with reference to the drawings. The vehicle display device of this embodiment is mounted on a vehicle (automobile). The vehicle display device according to the present embodiment is blocked by a frame portion (A pillar) provided between the windshield and both side door portions of the front seat, which is a window column, so that the driver can drive the vehicle forward and its surroundings. The area that becomes the blind spot when viewing is displayed.

  FIG. 1 is a block diagram illustrating a configuration of a vehicle display device 1 according to the present embodiment. The vehicle display device 1 includes a control unit 10 that controls the overall operation, two cameras 15 and 18, and displays (displays) 30 and 32.

  Input / output (I / O) interfaces 21, 27 and 29 and a display interface 25 are connected to the control unit 10. The on / off signal of the ignition (IGN +) switch is input to the control unit 10 via the I / O interface 21.

  The two cameras 15 and 18 are connected to the control unit 10 via the I / O interface 27. The cameras 15 and 18 have an image pickup device (CDD, CMOS, etc.) built therein, and perform a shooting operation according to a signal from the control unit 10. The I / O interface 29 is connected to a speed sensor 12 that detects the speed of the vehicle, an engine speed sensor 13 that detects the engine speed, and the like.

  FIGS. 2A and 2B are views showing the appearance of the vehicle 5 to which the two cameras 15 and 18 are attached in the vehicle display device 1 of the present embodiment. As shown in FIG. 2A, of the two cameras 15 and 18, the camera 15 captures an area that is obstructed by the A-pillar 55 (see FIG. 3) on the driver's seat side. The right side mirror 51 is attached to the cover 51a. On the other hand, the camera 18 takes an image of a blind area that is blocked by the A-pillar 55 on the passenger seat side, and is attached to the cover portion 53a of the left side mirror 53. Note that the A-pillar 55R on the driver's seat side and the A-pillar 55L on the passenger's seat side are simply referred to as the A-pillar 55 when there is no need to distinguish between them.

  As shown in FIG. 2B, the cover 18a of the side mirror 53 has a camera 18 built therein. A lens (for example, a wide-angle lens) is attached to the front surface of the camera 18. In addition, on the surface of the cover portion 53a of the side mirror 53, a photographing window 53b is formed so that the front surface of the camera 18 is exposed so as to have an angle of view that covers the aforementioned blind spot.

  The displays 30 and 32 are connected to the control unit 10 via a display interface (I / F) 25. The displays 30 and 32 are composed of a display unit such as an organic EL or a liquid crystal, and are attached to the A pillars 55R and 55L in the vehicle interior, respectively. The displays 30 and 32 display the image data captured by the cameras 15 and 18 and sent from the control unit 10 in real time.

  3 (A) and 3 (B) are diagrams showing the arrangement of the display 30 attached to the A pillar 55 in the vehicle interior in the vehicle display device 1 of the present embodiment. As shown in FIG. 3 (A), in the passenger compartment, as a pillar (pillar), an A pillar 55 that is diagonally in front of the driver seat and the passenger seat, a B pillar 56 that is between the front seat and the rear seat, And three C-pillars 57- diagonally behind the rear seat. As described above, in this embodiment, the blind areas that are blocked by the left and right A pillars 55R and 55L are photographed by the cameras 15 and 18, respectively, and the photographed images are displayed on the displays 30 and 32. Is called.

  Further, as shown in FIG. 3B, a window column (A pillar) 55R on the vehicle interior side, which is a frame portion provided between the windshield 54 and the driver seat side door portion 59, has a display. 30 is attached. The driver 70 can visually recognize an area that is blocked by the A pillar 55R and becomes a blind spot by looking at the image displayed on the screen of the display 30.

  4A and 4B are diagrams for explaining the positional relationship between the cameras 15 and 18 and the displays 30 and 32 in the vehicle display device 1 of the present embodiment. FIG. 4A shows the case of viewing from directly above in the vertical direction, and FIG. 4B shows the case of viewing from the side in the horizontal direction. In the field of view of the driver 70, there are blind spots 81 and 82 generated by being blocked by the A pillars 55R and 55L, respectively.

  The side mirrors 51 and 53 are rotatable around the vertical axes 51c and 53c as indicated by arrows a and b, respectively. When the side mirrors 51 and 53 are rotated and expanded in a direction away from the driver's seat, the cameras 15 and 18 attached to the side mirrors 51 and 53 have an angle of view in a direction covering the blind spots 81 and 82, respectively. The vertical heights of the displays 15 and 32 attached to the interior of the A pillars 55R and 55L and the cameras 15 and 18 are substantially equal. Further, when the side mirrors 51 and 53 are expanded, the cameras 15 and 18 come to positions close to the displays 30 and 32, respectively.

  In addition, since the displays 30 and 32 are attached to the A pillar 55 at an angle, the cameras 15 and 18 corresponding thereto are also attached to be inclined, so that the displays 30 and 32 are the same as when viewed through the glass. A captured image in a natural state is displayed.

  Thus, by arranging the cameras 15 and 18 and the displays 30 and 32, the display can be performed without performing image correction processing such as trimming or distortion correction on each image data photographed by the cameras 15 and 18. The visibility of the captured images displayed at 30 and 32 is sufficiently secured.

  The operation of the vehicular display device having the above configuration will be described. FIG. 5 is a flowchart showing a display operation procedure of the vehicle display device 1 of the present embodiment. This operation program is stored in the ROM in the control unit 10 and is executed by the CPU in the control unit 10.

  First, the control unit 10 maintains the vehicle 5 in a stopped state (step S1). The controller 10 determines whether or not the ignition switch ON signal is input and the engine is started (step S2). When the engine is not started, the control unit 10 returns to the process of step S1.

  On the other hand, when the engine is started, the control unit 10 starts photographing with the cameras 15 and 18, and displays the photographed images on the screens of the displays 30 and 32, respectively (step S3).

  FIGS. 6A and 6B are diagrams showing screens of the displays 30 and 32 in the vehicle display device 1 of the present embodiment. FIG. 6A shows a screen of the display 32 on the passenger seat side (left side). FIG. 6B shows a screen of the display 30 on the driver's seat side (right side). The screen of the left display 32 does not show anything that interferes with traveling, but the screen of the right display 30 displays obstacles 87 (for example, large stones) that may interfere with traveling. ing. The driver can notice the obstacle 87 that was originally a blind spot by looking at the display 30 disposed on the A pillar 55 in the same view as the field of view in front of the vehicle through the windshield 54.

  Thereafter, the control unit 10 receives an ignition switch OFF signal and determines whether or not the engine is stopped (step S4). When the engine is not stopped, the control unit 10 returns to the process of step S3. On the other hand, when the engine is stopped, the control unit 10 turns off the displays 30 and 32 (step S5), and ends this operation.

  According to the vehicle display device of the present embodiment, since the camera is attached to the side mirror, compared to the case where the camera is attached to the outside of the A-pillar, the area that becomes a blind spot caused by the A-pillar can be obtained without considering the rigidity of the vehicle body. A camera capable of shooting can be easily attached. Moreover, it can be easily retrofitted as additional equipment. In addition, when the camera and the display are set to have substantially the same height and are arranged close to each other, it is possible to perform display with high visibility without performing image correction processing on the captured image. Thereby, in addition to displaying in real time, the configuration of the apparatus can be simplified.

  In addition, it is possible to visually recognize a blind spot that occurs on both the driver seat side and the passenger seat side.

  Further, since the display is set to the display state during engine operation and the display is turned off when the engine is stopped, power consumption can be suppressed without wasteful display.

  Moreover, since the camera is built in the cover part of the side mirror and the photographing window is formed on the surface of the cover part, it is possible to suppress the appearance from being impaired even if the camera is mounted on the appearance.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

  For example, in the present embodiment, one camera is attached to each of the left and right side mirrors, for a total of two cameras, but two or more cameras may be attached, and a total of four or more cameras may be attached. Further, the number of cameras may be changed on the left and right, for example, two cameras on the right side and one camera on the left side may be attached. In this case, the display screen on one side may be divided into two screens, and images taken by two cameras may be displayed on each divided screen.

  Moreover, in the said embodiment, although the camera and the display were each arrange | positioned at both the driver's seat side and the passenger seat side, you may arrange | position only in any one side.

  The present invention provides a blind spot generated by a window column without considering the rigid surface of the vehicle body when displaying an area that is blinded by a window column that is a frame provided between the windshield and the door. A camera capable of photographing the area to be used can be easily attached and is useful.

Here, the features of the above-described embodiment of the vehicle display device according to the present invention are summarized and listed in the following (1) to (6), respectively.
(1) When viewed from the driver, mounted on the vehicle (5) and blocked by the window pillar (pillar 55) which is a frame provided between the windshield (54) and the door (59). A vehicle display device (1) for displaying an area to be a blind spot (81, 82),
Cameras (15, 18) that are attached to the side mirrors (51, 53) of the vehicle and photograph the area that becomes the blind spot;
A display (30, 32) attached to the interior side of the window column;
With
An image taken by the camera is displayed on the display.
A display device for a vehicle.
(2) The vertical height of the camera attached to the side mirror is substantially equal to the height of the display attached to the interior side of the window column.
The vehicle display device as described in (1) above, wherein
(3) The side mirror is provided to be rotatable about a vertical axis,
The camera is attached to the side mirror so as to be in a position close to the display when the side mirror is rotated and expanded.
The vehicle display device as described in (2) above, wherein
(4) The camera and the display are respectively arranged on both the driver seat side and the passenger seat side of the vehicle.
The vehicle display device according to any one of (1) to (3) above, characterized in that:
(5) When the engine of the vehicle is operating, the display is in a display state, and when the engine is stopped, the display is turned off.
The vehicle display device according to any one of (1) to (4) above, wherein
(6) The front surface of the camera is exposed from a window formed on the surface of the cover part so as to have an angle of view that covers the area serving as the blind spot, which is built in the cover part of the side mirror.
The vehicle display device according to any one of the above (1) to (5), characterized in that:

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 5 Vehicle 10 Control part 12 Speed sensor 13 Engine speed sensor 15, 18 Camera 21, 27, 29 I / O interface 25 Display interface 30, 32 Display 51, 53 Side mirror 51a, 53a Cover part 53b Photographing Window 54 Windshield 55, 55R, 55L A pillar 56 B pillar 57 C pillar 59 Door part 70 Driver 81, 82 Blind spot 87 Obstacle

Claims (4)

A vehicle display device that is mounted on a vehicle and that is blocked by a window pillar that is a frame portion provided between a windshield and a door portion, and that displays a blind spot when viewed from a driver,
A camera that is attached to a side mirror of the vehicle and shoots the area that becomes the blind spot;
A display attached to the interior side of the window column;
With
An image taken by the camera is displayed on the display.
A display device for a vehicle. The vertical height of the camera attached to the side mirror is substantially equal to the height of the display attached to the vehicle interior side of the window column,
The vehicular display device according to claim 1. The side mirror is provided to be rotatable around a vertical axis,
The camera is attached to the side mirror so as to be in a position close to the display when the side mirror is rotated and expanded.
The vehicle display device according to claim 2. The camera and the display are respectively arranged on both the driver's seat side and the passenger seat side of the vehicle.
The vehicular display device according to any one of claims 1 to 3, wherein

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