JP2019034707A - Separable on-board camera device for vehicle - Google Patents

Abstract

To solve such the problem that, if a monitor is provided to a tractor and a plurality of video cameras to be connected to the monitor is provided to a semi-trailer, there is a need to attach or detach lead wires as many as the video cameras when the tractor is connected or separated from the semi-trailer.SOLUTION: In a separable on-board camera device for a vehicle, a plurality of transmission lines to which a plurality of video cameras provided to a semi-trailer is connected is detachably connected to one transmission line connected to one monitor provided to a tractor via one connector.SELECTED DRAWING: Figure 1

Description

  The present invention comprises a vehicle in which a tow vehicle and a towed vehicle are separable, a video display device is mounted on the towed vehicle, and a plurality of videos for transmitting a video signal to the towed vehicle to the video display device. The present invention relates to an in-vehicle camera device for a vehicle having a transmission line on which a camera is mounted and detachably connects the video display device and the video camera.

  When a monitor as an image display device is attached to the cab of a tractor (also referred to as a trailer head) as a tow vehicle and a plurality of video cameras are attached to a semi-trailer as a tow vehicle, conventionally, the monitor and the video Each camera had to be connected by a separate transmission line.

As described above, since the monitor and the video camera are conventionally connected by individual transmission lines, when separating the tractor and the semi-trailer, each transmission line between the monitor and the video camera is individually separated, Further, when connecting the tractor and another semi-trailer, it is necessary to individually connect the transmission lines between the monitor and the video camera.
Further, conventionally, a control box is provided on the tractor side, and it is necessary to connect each transmission line of each video camera to the control box, which is troublesome.

The work of disconnecting or connecting a plurality of transmission lines is troublesome, and in some cases, there is a possibility that the transmission lines between the monitor and the video camera to be originally connected are erroneously connected.
For example, if the transmission line of the video camera attached to the left and right sides of the semi-trailer is accidentally connected, the left and right images of the semi-trailer are displayed in reverse on the monitor, and the driver accidentally operates the steering wheel. May occur.

JP2004-243959

  The above-mentioned Patent Document 1 is a rear monitoring device provided in a tractor / trailer type truck including a tractor provided with a driver's cab and a trailer connected to or separated from the rear part of the tractor. A video camera attached to the rear and projecting the back of the trailer; a transmission unit built in or near the video camera; for transmitting a video signal from the video camera wirelessly; and in a cab of the tractor A monitor that displays a rear image of the trailer by a video signal from the transmission unit, and the video camera and the transmission unit that are built in or near the video camera at the rear of the trailer And a battery installed near the battery at the rear of the trailer. It is, a dedicated generator to charge to the battery, and the track runs are rear monitoring device tracks and a generator according to a wind or vibrations caused by the is disclosed.

However, in the prior art described in Patent Document 1 described above, only one video camera that reflects the back of the trailer is mounted, and the video camera and the monitor are connected wirelessly.
If a plurality of video cameras are mounted on the trailer, the frequency must be changed for each video camera in order to transmit the video signal to the monitor wirelessly, which complicates the entire apparatus and increases the cost.

  The present invention reliably attaches and detaches the transmission lines of the video display device and the plurality of video cameras by simply attaching and detaching a single connector when the video display device and the transmission lines of the plurality of video cameras are detachably connected. It is something to be done.

(1) The present invention is an in-vehicle camera device comprising a video display device provided in a tow vehicle and a video camera mounted on a towed vehicle to be separated from the tow vehicle.
A plurality of transmission lines connected to a plurality of video cameras mounted on the towed vehicle, and one transmission line connected to a video display device provided in the towed vehicle. An on-vehicle camera device for a separable vehicle, wherein the camera device is detachably connected via a connector.
According to the present invention, a plurality of transmission lines to which a plurality of video cameras are connected and a transmission line connected to the video display device are detachably connected via one connector. Therefore, when exchanging the tow vehicle and the towed vehicle, the operator only has to attach and detach the one connector, and the working time is shortened.
In addition, since there is no need to connect transmission lines of a plurality of video cameras, connection errors do not occur.

(2) Three video cameras are mounted on the towed vehicle, and the connector is connected to three connection pins corresponding to signal transmission lines connected to the video cameras and to the video cameras. It is desirable that two connection pins corresponding to the power supply transmission line are provided.
Thus, the connector has three connection pins corresponding to the signal transmission lines connected to the respective video cameras and two connection pins corresponding to the power supply transmission lines connected to the respective video cameras. If it is provided, it is possible to simultaneously disconnect and connect the video signal and power by simply attaching and detaching one connector.

(3) The video camera mounted on the towed vehicle is mounted on the rear portion and the left and right side portions of the towed vehicle, and the lenses of all the video cameras are directed rearward with respect to the traveling direction. Is desirable.
Thus, when the video camera is mounted on the rear part and the left and right side parts of the towed vehicle, and the lens of any video camera is directed backward with respect to the traveling direction, the video display device in the cab is displayed. As if looking at the rear and left and right rearview mirrors, the video is displayed and the driver's safety can be confirmed reliably.
In particular, at the corners, the tow vehicle on which the driver is boarding and the towed vehicle on which the load is loaded are refracted at the connecting portion and bends into a common jackknife type. Can contribute to a lot of safe driving.

(4) It is desirable that the video camera mounted on the towed vehicle is attached to an upper part of a rear end of the towed vehicle and lower front parts of left and right side parts of the towed vehicle.
Thus, when the video camera is attached to the upper part of the rear end of the towed vehicle and the lower part of the front side of the left and right sides of the towed vehicle, Since the images below the left and right sides of the towed vehicle can be recognized, for example, it can be reliably determined whether or not the child is caught in the lower part of the vehicle body.

(5) It is desirable that the lens of the video camera mounted on the lower front part of the left and right side portions of the towed vehicle is directed toward the rear wheel of the towed vehicle.
Thus, when the lens of the video camera mounted on the lower front part of the left and right sides of the towed vehicle is oriented in the direction of the rear wheel of the towed vehicle, foreign matter or the like is present on the rear wheel. It is possible to reliably determine whether there is a risk of being involved.

(6) It is preferable that a video camera with a lens pointing forward with respect to the traveling direction is also attached to the front portion of the tow vehicle, and the video camera is connected to the video display device by a transmission line.
Thus, when a video camera with the lens pointing forward with respect to the traveling direction is also attached to the front part of the towing vehicle, the front video is also recorded by connecting to the video recording device. If an accident occurs, you can check the condition afterwards.

(7) It is preferable that a video camera whose lens is directed rearward with respect to the traveling direction is also attached to the rear part of the towing vehicle, and the video camera is connected to the video display device by a transmission line.
Thus, if the video camera with the lens pointing backward with respect to the traveling direction is also attached to the rear part of the tow vehicle, the state of the load on the tow vehicle can be confirmed, or the tow vehicle alone The driver can check the rear image even when driving on the road.
Moreover, the state of the whole towed vehicle can also be confirmed.

(8) It is preferable that the video display device is configured to display video signals from all the video cameras as images selectively or simultaneously.
Thus, when the video signals from all the video cameras are displayed simultaneously as images, all parts and directions of the towed vehicle and the towed vehicle are displayed on one video display device, and driving One can take care of everything around the vehicle.
In addition, if the video signals from all the video cameras are selectively displayed as images, the driver can clearly recognize a portion to which particular attention should be paid.

(9) It is preferable that a driver's cab of the tow vehicle is provided with a winker operation lever, and an image of a video camera directed in a direction corresponding to the operation of the winker is displayed on the video display device.
Thus, when the video camera image oriented in the direction corresponding to the operation of the blinker is displayed on the video display device, the inside when the vehicle turns is clearly displayed, so the driver is particularly careful It is possible to reliably recognize the power part.

(10) It is preferable that a video recording device is mounted on the tow vehicle, and video displayed on the video display device is simultaneously recorded on the video recording device.
As described above, when the images displayed on the image display device are simultaneously recorded on the image recording device, the contents of the images can be confirmed afterwards.
(11) It is preferable that the video display device includes a control circuit.
If the video display device has a built-in control circuit, it is not necessary to provide a control box on the towing vehicle side as in the prior art, and the operator is troublesome to connect each transmission line of each video camera to the control box There is no work.

  According to the vehicle-mounted camera device for a separable vehicle according to the present invention, when the single transmission line of the video display device and the transmission lines of the plurality of video cameras are detachably connected, only the single connector is attached / detached. Thus, it is possible to reliably attach and detach the transmission lines of a single video display device and a plurality of video cameras.

It is a top view of the connector which concerns on embodiment of this invention. 1 is a connection diagram of a tractor / semi-trailer and a monitor or video camera according to an embodiment of the present invention. FIG. It is a side view of a tractor semi-trailer according to an embodiment of the present invention. It is a side view of a tractor semi-trailer according to an embodiment of the present invention. 1 is a side view of a truck / full trailer according to an embodiment of the present invention. It is a figure showing the screen of the monitor concerning an embodiment of the invention.

FIG. 1 is a plan view showing a connection state of one connection unit and transmission lines of three video cameras, and FIG. 2 is a connection diagram of a tractor / semi-trailer and a monitor or video camera.
In these drawings, three video lines 3A are connected to three video cameras 1A, 1B and 1C mounted on a semi-trailer 7 as a towed vehicle via individual connectors 2A, 2B and 2C. 3B and 3C are collected in the collective connector 4.
The aggregation connector 4 is provided with video signal pins 5A, 5B, and 5C and power pins 5D (−) and 5E (+), as shown in the figure on the left side. Is detachably connected to a transmission line connected to a monitor 6 as a video display device.
Accordingly, the single monitor 6 and the three video cameras 1A, 1B, and 1C can be attached and detached simply by attaching and detaching the one collective connector 4.
The monitor 6 has a built-in control circuit.

  Video cameras 1 </ b> A and 1 </ b> B are attached to the lower portions of the left and right side walls with respect to the traveling direction of the semi-trailer 7 so that the lenses thereof are directed rearward with respect to the traveling direction of the semi-trailer 7. More specifically, the video camera 1A on the front side (left side with respect to the traveling direction of the semi-trailer 7) and the video camera 1B on the rear side (right side with respect to the traveling direction of the semi-trailer 7) are respectively shown in FIG. The front side of the traveling direction of the rear wheel 12 and the left and right directions are imaged. When a foreign object is caught in the rear wheel 11, the driver can immediately confirm the state on the monitor 6.

In addition, a video camera 1 </ b> C is attached to the lower part of the center of the rear part of the semi-trailer 7 so that the lens is directed rearward with respect to the traveling direction of the semi-trailer 7. This video camera 1 </ b> C captures the rear side of the semi-trailer 7.
A monitor 6 is installed at a position where the driver can easily see the vehicle inside a tractor 8 as a towing vehicle for towing the semi-trailer 7, and a video camera 1D for imaging the front of the tractor 8 is installed above the monitor 6. The video camera 1D is also connected to the monitor 6.

Further, a recorder 9 as a video recording device is mounted inside the cab of the tractor 8, and the video displayed on the monitor 6 is simultaneously recorded on the recorder 9.
Therefore, the images captured by the video cameras 1A, 1B, 1C, and 1D can be recorded by the recorder 9 and reproduced at any time.

FIGS. 3 and 4 show a tractor / semi-trailer of a type different from that of FIG. 1, but the portions corresponding to those of FIG. 1 are denoted by the same reference numerals.
A video camera 1C similar to that shown in FIG. 1 is attached to the rear part of the semi-trailer 7 shown in FIGS. 3 and 4, and both images the rear of the semi-trailer 7.
Also, a video camera 1E is mounted on the rear upper part of the tractor 8 shown in FIG. 3, and this video camera 1E images a load placed on the semi-trailer 7. Two video cameras 1F similar to the video cameras 1A and 1B shown in FIG. 2 are mounted on the front part of the semi-trailer 7 shown in FIG.

FIG. 5 is a diagram showing a truck 10 as a towing vehicle and a full trailer 11 as a towed vehicle connected thereto.
The truck 10 can carry a load even by itself and can pull a full trailer.
A video camera 1G that captures the entire rear image is mounted at a substantially upper center of the rear portion of the full trailer 11, and a video camera 1H that captures the rear of the full trailer 11 is mounted below the front portion of both sides of the full trailer 11. Has been.
In addition, a video camera 1J for capturing the image of the full trailer 11 is mounted at substantially the center above the rear part of the truck 10, and a video camera 1K for capturing the rear side is also mounted below the front part on both sides of the loading platform of the truck 10. Has been.
The video camera 1K captures the left and right images of the track 10 and the left and right distant views of the full trailer, and the video camera 1H captures the left and right images of the full trailer and the images of the front side of the rear wheel 12.
The video lines of the video cameras 1G and 1H attached to the full trailer are detachably connected to the monitor 6 in the cab of the truck 10 via the collective connector 4.
Since the video cameras 1J and 1K of the track 10 are always connected to the monitor 6, the collective connector 4 is not connected.

  FIG. 6 shows the screen of the monitor 6. On this monitor 6, the images 1AP (left), 1BP (right), and 1CP (rear) captured by the three video cameras 1A, 1B, and 1C mounted on the semi-trailer 7 are displayed separately. Depending on the driver's appropriate selection, for example, only the rear video 1CP can be enlarged and displayed, or only the left video 1AP can be enlarged and displayed.

Although not shown, the cab of the tractor 8 is provided with a winker operation lever, and the video 1AP or 1BP of the video camera 1A or 1B pointing in the direction corresponding to the operation of the winker is the monitor 6 It is configured to be displayed.
For example, when the tractor 8 and the semi-trailer 7 turn left, the driver on the tractor 8 operates the winker operation lever in the left turn direction. In such a case, the video indicates the direction corresponding to the winker operation. The video 1AP of the camera 1A is displayed on the monitor 6.
Then, since the inside (left side) when the tractor 8 and the semi-trailer 7 turn to the left is clearly displayed on the monitor 6, the driver can surely recognize a portion to be particularly careful.
Further, the screen of the monitor 6 is not divided into three, but can be divided into two or four or more according to the number of video cameras.

  1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1J, 1K video camera, 1AP, 1BP, 1CP video, 2A, 2B, 2C individual connector, 3A, 3B, 3C video line, 4 collective connector, 5A 5B, 5C Video signal pin, 5D, 5E Power pin, 6 Monitor, 7 Semi trailer, 8 Tractor, 9 Recorder, 10 Truck, 11 Full trailer, 12 Rear wheels.

The present invention is an in-vehicle camera device comprising a video display device provided in a tow vehicle and a video camera mounted on a towed vehicle to be pulled to be separable from the tow vehicle,
The same number of video lines as one connector is connected to the plurality of transmission lines connected to the plurality of video cameras mounted on the towed vehicle through the same number of individual connectors. Aggregated on one side,
On one side of the connector, the same number of video signal terminals as the video lines and power terminals are provided,
On the other side of the connector, a terminal corresponding to the terminal on one side of the connector is provided, and connected to the video display device provided in the towing vehicle by one transmission line ,
Wherein by detachably one of one side and the other side of the connector, a vehicle camera device separable vehicle, characterized in Rukoto the video camera and the video display device is detachable.
According to the present invention, a plurality of transmission lines to which a plurality of video cameras are connected and a transmission line connected to the video display device are detachably connected via one connector. Therefore, when exchanging the tow vehicle and the towed vehicle, the operator only has to attach and detach the one connector, and the working time is shortened.
In addition, since there is no need to connect transmission lines of a plurality of video cameras, connection errors do not occur.

(1) The present invention is an in-vehicle camera device comprising a video display device provided in a tow vehicle and a video camera mounted on a towed vehicle to be separated from the tow vehicle.
1 is the individual connectors and the same number of video line via the transmission line and the same number of individual connectors which are individually connected to a plurality of transmission lines, wherein the plurality of video cameras mounted on the towed vehicle is connected On one side of the connector
On one side of the connector, the same number of video signal terminals as the video lines and power terminals are provided,
On the other side of the connector, a terminal corresponding to the terminal on one side of the connector is provided, and connected to the video display device provided in the towing vehicle by one transmission line,
A detachable vehicle-mounted camera device, wherein a video camera and a video display device are freely attached and detached by attaching and detaching one side and the other side of the one connector.
According to the present invention, a plurality of transmission lines to which a plurality of video cameras are connected and a transmission line connected to the video display device are detachably connected via one connector. Therefore, when exchanging the tow vehicle and the towed vehicle, the operator only has to attach and detach the one connector, and the working time is shortened.
In addition, since there is no need to connect transmission lines of a plurality of video cameras, connection errors do not occur.

Claims (11)

An in-vehicle camera device comprising a video display device provided in a tow vehicle and a video camera mounted on a towed vehicle to be separated from the tow vehicle;
A plurality of transmission lines connected to a plurality of video cameras mounted on the towed vehicle, and one transmission line connected to a video display device provided in the towed vehicle. An on-vehicle camera device for a separable vehicle, wherein the camera device is detachably connected via a connector.   Three video cameras are mounted on the towed vehicle, and the connector has three connection pins corresponding to signal transmission lines connected to the video cameras, and power supply connected to the video cameras. The in-vehicle camera device for a separable vehicle according to claim 1, wherein two connection pins corresponding to the transmission line are provided.   The video camera mounted on the towed vehicle is mounted on a rear portion and left and right side portions of the towed vehicle, and the lenses of any of the video cameras are directed rearward with respect to the traveling direction. 2. A vehicle-mounted camera device for a separable vehicle according to 2.   The separable vehicle according to claim 3, wherein the video camera mounted on the towed vehicle is attached to a rear end of the towed vehicle and lower front portions of left and right sides of the towed vehicle. In-vehicle camera device.   The in-vehicle camera for a separable vehicle according to claim 4, wherein the lens of the video camera mounted on the lower front part of the left and right side portions of the towed vehicle is directed toward the rear wheel of the towed vehicle. apparatus.   The video camera in which a lens is directed forward with respect to the traveling direction is also attached to a front portion of the towing vehicle, and the video camera is connected to the video display device by a transmission line. An on-vehicle camera device for a separable vehicle according to claim 1.   7. A video camera in which a lens is directed rearward with respect to a traveling direction is also attached to a rear portion of the tow vehicle, and the video camera is connected to the video display device by a transmission line. The vehicle-mounted camera apparatus of the separable vehicle as described in 1 above.   8. The separable vehicle-mounted camera according to claim 1, wherein the video display device is configured to selectively or simultaneously display video signals from all the video cameras as images. apparatus.   The cab of the tow vehicle is provided with a winker operating lever, and an image of a video camera directed in a direction corresponding to the operation of the winker is displayed on the video display device. In-vehicle camera device for separable vehicles.   10. The vehicle-mounted camera device for a separable vehicle according to claim 1, wherein a video recording device is mounted on the tow vehicle, and video displayed on the video display device is simultaneously recorded on the video recording device.   The in-vehicle camera device for a separable vehicle according to any one of claims 1 to 10, wherein a control circuit is built in the video display device.

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