JP7184445B2 - Surveillance camera device for construction machinery - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction machine monitoring camera device used for, for example, an excavator-type construction machine.

5, 6 and 7, a conventional construction machine monitoring camera apparatus of this type includes a rear monitoring camera _CB that is provided on a vehicle body _M1 of a construction machine M and captures an image of the rear of the vehicle body _M1 ; A right side monitoring camera _CR for imaging the right side of the vehicle body _M1 , a left side monitoring camera _CL for imaging the left side of the vehicle body _M1 , and a rear monitoring camera C installed in the driver's cab _M2 of the construction machine M. A rear display unit D _B that displays a mirror image _IM of an imaging target T behind the vehicle body _M1 based on a video signal from _B and an imaging target on the right side of the vehicle body _M1 based on a video signal from the right side monitoring camera _CR . A right side display portion _DR for displaying a normal image _ITR of T and a left side display portion for displaying a normal image _ITL of an imaging target T on the left side of the vehicle body _M1 based on a video signal from the left side monitoring camera _CL . A structure comprising a display D with a _DL is known.

JP-A-10-140619

However, in the case of the above-described conventional structure, as shown in FIG. 6, the object T to be imaged behind the vehicle body _M1 moves from the left position to the right position and then from the right position to the front position in the order of (a) → (b) → (c). 7, the mirror image _IM of the imaging target T displayed on the rear display portion _DB of the display D moves from the left position to the right position in the order of (a)→(b). , the normal image _ITR of the imaging target T displayed on the right side display section _DR is displayed moving from the right side position to the left side position like (B)→(C) and displayed on the left side display section _DL . The normal image _ITL of the object T to be imaged is moved and displayed from the left position to the _non -display _area like (a)→out of display _. There is no continuity in the movement of the imaging target T between the normal image _ITR and the normal image _ITL of the left side display part _DL. The movement of the construction machine M cannot be visually recognized intuitively by the screen of the display D installed facing the driver in front of the driver's seat _M3 in the driver's cab _M2 of the vehicle body _M1 . There is a problem that the prevention of accidents due to contact with the object to be imaged T and the safety of operation of various construction machines are sometimes poorly ensured.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems. A right side monitoring camera for imaging the right side of the machine, a left side monitoring camera for imaging the left side of the vehicle body, and a left side monitoring camera for imaging the left side of the vehicle body. Based on the video signal from the rear display unit and the right side monitoring camera, the right side display unit that displays the normal image of the imaging target on the right side of the vehicle body and the vehicle body based on the video signal from the left side monitoring camera and a display having a left side display portion for displaying a normal image of an object to be imaged on the left side of the vehicle body information display portion for displaying posture information of the vehicle body and installation position information of each of the surveillance cameras on the display. a simulated plane figure of the vehicle body as attitude information of the vehicle body is displayed on the vehicle body information display section, installation position information of each surveillance camera is displayed on the simulated plane figure, and the simulated plane of the vehicle body is displayed on the vehicle body information display section . The rear display section is arranged below the figure , the right side display section is arranged on the right side of the simulated plane figure of the vehicle body of the vehicle body information display section, and the left side of the simulated plane figure of the vehicle body of the vehicle body information display section. A left side display portion is arranged at a side position, the rear display portion, the right side display portion, and the left side display portion are arranged at positions surrounding a simulated plan figure of the vehicle body, and the rear display portion is provided with the vehicle body. A mirror image of an object to be imaged on the rear side is displayed vertically inverted by 180 degrees, and a normal image of an object to be imaged on the right side of the vehicle body is rotated clockwise by 90 degrees and displayed on the right side display portion, and the left side display portion is displayed. displays a normal image of an object to be imaged on the left side of the vehicle body rotated 90 degrees counterclockwise , the display is a tablet terminal detachable from the vehicle body, and each of the surveillance cameras is mounted on the vehicle body. and further comprising an image processing unit for wirelessly connecting each of the surveillance cameras and the display.

Further, in the invention according to claim 2, one rear monitoring camera is installed at the center of the rear part of the vehicle body, one right side monitoring camera is installed at the right side of the vehicle body, and one left side monitoring camera is installed at the right side of the vehicle body. The camera is characterized in that one is installed on the left side of the vehicle body, and the invention according to claim 3 is characterized in that two rear monitoring cameras are installed one on each of the left and right sides of the rear part of the vehicle body. The right side monitor camera is installed on the right side of the vehicle body, and the left side monitor camera is installed on the left side of the vehicle body.

As described above, according to the first aspect of the present invention, the mirror image of the object to be imaged displayed on the rear display portion of the display is displayed in a moving manner, and the mirror image of the object to be imaged is vertically inverted 180 degrees and displayed. , the normal image of the imaging target displayed on the right side display section is moved and displayed, and the normal image of the imaging target is rotated 90 degrees clockwise and displayed, and the normal image of the imaging target displayed on the left side display section is displayed. is moved and displayed, and the normal image of the object to be imaged is rotated 90 degrees counterclockwise. Continuity can be seen in the movement of the imaged object in the display, and the movement of the imaged object can be visually recognized intuitively on the display, preventing accidents due to contact between the construction machine and the imaged object, etc. It is possible to improve the safety of operation of the construction machine, and furthermore , a simulated plane figure of the vehicle body is displayed as posture information of the vehicle body in the vehicle body information display section, and the installation position information of each surveillance camera is displayed on the simulated plane figure. The rear display section is arranged below the simulated plane figure of the vehicle body of the vehicle body information display section, and the right side display section is arranged at the right side position of the simulated plane figure of the vehicle body of the vehicle body information display section to display the vehicle body information. A left side display portion is arranged at a left side position of the simulated plane figure of the vehicle body of the part, and the rear display portion, the right side display portion and the left side display portion are arranged at positions surrounding the simulated plane figure of the vehicle body, The rear display section displays a mirror image of the object to be imaged behind the vehicle body that is vertically inverted by 180 degrees, and the right side display section displays a normal image of the object to be imaged on the right side of the vehicle body that is rotated clockwise by 90 degrees. Since the left side display section displays a normal image of the object to be imaged on the left side of the vehicle body rotated 90 degrees counterclockwise, the movement of the object to be imaged is displayed on the simulated plane figure of the vehicle body and the simulated image. The installation position information of each of the monitoring cameras displayed in a plane graphic allows the subject to be imaged to be visually recognized intuitively, and monitoring can be performed reliably. Therefore, it is possible to improve flexibility and visibility of installation position information of the display, and furthermore, each of the surveillance cameras is attached to the vehicle body by a magnet, and each surveillance camera and the display are wirelessly connected. Since the image processing unit to be connected is provided, it is possible to easily install each surveillance camera and display, and to improve the flexibility of installation.

In the second aspect of the present invention, one rearward monitoring camera is installed at the rear center of the vehicle body, and one right side monitoring camera is installed at the right side of the vehicle body to monitor the left side. Since one camera is installed on the left side of the vehicle body, it is possible to display on the display three screens of the rear display section, the right side display section and the left side display section and the screen of the vehicle information display section. The movement of the target can be recognized together with the posture information of the vehicle body and the installation position information of each surveillance camera, the imaging target can be reliably monitored, and the structure can be simplified. In the third aspect of the invention, two rear monitoring cameras are installed on the left and right sides of the rear part of the vehicle body, and one right side monitoring camera is installed on the right side of the vehicle body to monitor the left side. Since one camera is installed on the left side of the vehicle body, it is possible to display four screens of two rear display units, right side display units, left side display units and a screen of the vehicle information display unit on the display. The motion of the object to be imaged can be reliably recognized together with the posture information of the vehicle body and the installation position information of each surveillance camera, the object to be imaged can be reliably monitored, and the structure can be simplified. .

FIG. 2 is an explanatory diagram of a display according to the first embodiment of the present invention; It is a control block diagram of the first embodiment of the present invention. It is an explanatory plan view of a second embodiment of the present invention. FIG. 4 is an explanatory diagram of a display according to a second embodiment of the present invention; It is an explanatory perspective view of a camera monitoring state. FIG. 4 is an explanatory plan view of a camera monitoring state; FIG. 2 is an explanatory diagram of a display having a conventional structure;

1 to 6 show an embodiment of the present invention, FIGS. 1 and 2 show a first embodiment, and FIGS. 3 and 4 show a second embodiment. Description will be given with reference numerals.

In the first embodiment shown in FIGS. 1 and 2, as shown in FIGS. 1, 2, and 6, it can be broadly classified as a rear monitoring device provided on the vehicle body _M1 of the construction machine M and imaging the rear of the vehicle body _M1 . A camera _CB , a right side monitoring camera _CR for imaging the right side of the vehicle body _M1 , and a left side monitoring camera _CL for imaging the left side of the vehicle body _M1 are installed in the driver's cab _M2 of the construction machine M. , based _on the video signal _{SB from} the _rear monitoring camera CB and the video signal _SB from the right side monitoring _{camera CR} The image signal SB from the right side display unit _DR that displays the normal image _{ITR of} the imaging target T on the right side of the vehicle body M1 and the image signal _SB from the left monitoring camera _CL are used to display the imaging target T on the left side of the vehicle body _M1 . and a display D having a left side display portion _DL for displaying a normal image _ITL .

In this case, one rear monitoring camera _CB is installed at the rear center of the vehicle body _M1 , one right side monitoring camera _CR is installed at the right side of the vehicle body _M1 , and one left side monitoring camera C is installed. One _L is installed on the left side of the vehicle body _M1 .

In this case, as shown in FIG. 1, a tablet terminal _DT detachable from the vehicle body _M1 is used as the display D. In this case, posture information _IF of the vehicle body _M1 and the surveillance cameras _{CB are} displayed. A vehicle body information display section _DM for displaying installation position _{information CBP} , _CRP , and CLP of the CR and _CL is provided, and the rear display section _DB is arranged below the vehicle body _information display section _DM . , a right side display portion D _R is arranged at a right side position of the vehicle body information _{display portion DM, a left side display portion D L is arranged} at a left side position of the vehicle body information display portion DM, and the rear display portion D _B , The right side display section DR _and the left side display section DL _are arranged at positions surrounding the simulated plane figure of the vehicle body _M1 as posture information _IF of the vehicle body _M1 displayed on the _vehicle body information display section DM. ing.

_IP is an image processing unit, and in this case, the surveillance cameras _CB , _CR , and _CL are connected to the display D by a wireless system, and the rear surveillance camera _CB , the right side surveillance camera _CR , and the Based on the video signal _SB from the left monitoring camera _CL , a mirror image _IM of the object T to be imaged behind the vehicle body _M1 is displayed on the rear display unit _DB , and a normal image of the object T to be imaged on the right side of the vehicle body _M1 is displayed. The _ITR is displayed on the right side display portion _DR , and the normal image _ITL of the imaging target T on the left side of the vehicle body _M1 is displayed on the left side display portion _DL .

In this case, in the image processing unit _IP , as shown in FIG. 1, the mirror image _IM of the object to be imaged T behind the vehicle body _M1 is displayed on the rear display unit _DB by flipping it 180 degrees vertically. In this case, the feet of the worker as the object to be imaged T are displayed in the vicinity of the vehicle information display section _DM , and the worker's head is displayed in an inverted state away from the vehicle information display section _DM . In the portion _DR , a normal image _ITR of the object T to be imaged on the right side of the vehicle body _M1 is displayed rotated 90 degrees clockwise. _{DM , the} worker's head is displayed in a recumbent state away from the vehicle body information display section _DM . The image _ITL is rotated 90 degrees counterclockwise and displayed _. It is configured to be displayed in a recumbent position away from the _DM .

In this case, a simulated plane figure of the vehicle body _M1 is displayed as the attitude information _IF of the vehicle body _M1 on the vehicle body information display section _DM , and the surveillance cameras _CB , _CR , and _CL are displayed on the simulated plane figure. are displayed _along with _the camera name and camera _design .

In this case, the monitoring cameras _CB , _CR , and _CL are attached to the vehicle body _M1 by magnets (not shown).

Since this first embodiment has the above configuration, as shown in _FIG . , the mirror image _IM of the imaging target T displayed on the rear display portion _DB of the display D, as shown in FIG. The mirror image _IM of the imaging target T is displayed while being moved to the right position, and the normal image _ITR of the imaging target T displayed on the right side display section _DR is (b). → (C), the normal image _ITR of the object to be imaged T is rotated 90 degrees clockwise and displayed, moved from the lower position to the upper position, and displayed in the left side display area D The normal image _ITL of the imaging target T displayed in _L is displayed moving from (A) to the outside of the display, and the normal image _ITL of the imaging target T is rotated 90 degrees counterclockwise and displayed. The rear display section D _B , the right side display section _DR and the left side display section D _L are a simulation of the vehicle body M ₁ displayed on the vehicle body information display section _DM . It is arranged at a position surrounding the plane figure, so that the imaging is performed between the mirror image _IM of the rear display section _DB , the normal image _ITR of the right side display section _DR , and the normal image _ITL of the left side display section _DL . In the movement of the object T, continuity in the left-handed (counterclockwise) direction in the drawing can be seen around the vehicle body information display section _DM . When moving from the left position to the right position and from the right position to the front position like (a) → (b) → (c), the movement is displayed on the screen of the display D installed in the driver's cab _M2 of the vehicle body _M1 . Therefore, it is possible to intuitively visually recognize and grasp the object, thereby preventing accidents due to contact between the construction machine M and the object to be imaged T, and improving the safety of operation of various construction machines.

In this case, one rear monitoring camera _CB is installed at the rear center of the vehicle body _M1 , one right side monitoring camera _CR is installed at the right side of the vehicle body _M1 , and one left side monitoring camera C is installed. Since one _L is installed on the left side of the vehicle body _M1 , the display D has three screens of the rear display section _DB , the right side display section _DR and the left side display section _DL , and the vehicle information display section D The movement of the imaging target T can be displayed on the screen of _M , and the movement of the imaging target T is represented by the attitude information _IF of the vehicle body _M1 and the installation position information _CBP , _CRP , and _CLP of the surveillance cameras _CB , _CR , and _CL . It is possible to recognize the object T at the same time, to reliably monitor the imaging target T, and to simplify the structure.

In this case, a simulated plane figure of the vehicle body _M1 is displayed as the attitude information _IF of the vehicle body _M1 on the vehicle body information display section _DM , and the surveillance cameras _CB , _CR , and _CL are displayed on the simulated plane figure. Since the installation position information _CBP , _CRP , and _CLP are displayed, the movement of the object to be imaged T is displayed on the simulated plane figure of the vehicle body _M1 and the surveillance cameras C _B and _CR displayed on the simulated plane figure. The installation position information _CBP , _CRP , and _{CLP of} the CL allows intuitive visual confirmation of the image pickup target T, and reliable monitoring. ₁ , the flexibility and visibility of the installation position information _CBP , _CRP , and _CLP of the display _D can be improved. The _CB , _CR , and _CL are attached to the vehicle body _M1 by magnets, and the connection between the surveillance cameras _CB , _CR , and _CL and the display _D is wireless. The installation of the _CR / _CL and the display D can be easily performed, and the flexibility of installation can be improved.

The second embodiment shown in FIGS. 3 and 4 shows a different structure. In this case, two rear monitoring cameras _CB are installed on the left and right sides of the rear part of the vehicle body _M1 , and the right side monitoring camera C is installed. _{One R} is installed on the right side of the vehicle body _M1 , one left side monitoring camera _CL is installed on the left side of the vehicle body _M1 , and two rear display sections D _B and D _B are installed. The right side display section DR _and the left side display section DL _are arranged at positions surrounding the simulated plane figure of the vehicle body _M1 displayed on the vehicle body information display section _DM .

Thus, as shown in FIG. 3, when the object to be imaged T behind the vehicle body _M1 moves from the left position to the right position and further from the right position to the front position as shown in (a)→(b)→(c). As shown in FIG. 4, the mirror image _IM of the imaging target T displayed on the two rear display portions D _B and D _B of the display D moves from the left position to the right position in the order of (a)→(b). The mirror image _IM of the imaging target T is displayed in a 180-degree upside down display, and the normal image _ITR of the imaging target T displayed on the right side display section _DR is (b) → (c). The normal image _ITR of the imaging target T is rotated clockwise by 90 degrees and displayed, moved from the lower position to the upper position, and displayed on the left side display section _DL . The normal image _ITL of the imaging target T is moved and displayed in the order of (A)→out of display, and the normal image _ITL of the imaging target T is rotated 90 degrees counterclockwise and displayed, starting from the upper position in the non-display area. , and the two rear display sections D _B and D _B , the right side display section D _R and the left side display section D _L are displayed on the vehicle body information display section _{DM .} It is arranged at a position surrounding the simulated plane figure, and therefore, between the mirror image _IM of the rear display section _DB , the normal image _ITR of the right side display section _DR , and the normal image _ITL of the left side display section _DL . In the movement of the imaging target T, continuity in the left-handed (counterclockwise) direction in the drawing can be seen around the vehicle body information display section _DM . moves from the left position to the right position, and from the right position to the front position, such as (A) → (B) → (C), the movement is displayed on the display D installed in the driver's cab _M2 of the vehicle body _M1 . It is possible to intuitively view and grasp the information on the screen, thereby preventing accidents due to contact between the construction machine M and the object to be imaged T, and improving the safety of operating various construction machines.

In this case, two rear monitoring cameras _CB are installed on the left and right sides of the rear portion of the vehicle body _M1 , and one right side monitoring camera _CR is installed on the right side of the vehicle body _M1 . Since one direction monitoring camera _CL is installed on the left side of the vehicle body _M1 , the display D has two rear display portions D _B and D _B , a right side display portion _DR and a left side display portion _DL. and the screen of the vehicle body information display section _DM , and the movement of the imaging target T can be displayed on the posture information I _F of the vehicle body _M1 and the surveillance cameras C _B , C _B , C _R , C _L can be reliably recognized together with the installation position information _CBP , _CRP , and _CLP of L, the imaging target T can be reliably monitored, and the structure can be simplified.

It should be noted that the present invention is not limited to the above-described embodiment, but includes the construction machine M, the rear monitoring camera C _B , the right side monitoring camera C _R , the left side monitoring camera C _L , the display D, and the rear display section D. _B , the right side display portion _DR , the left side display portion D _L , the vehicle body information display portion _DM , and the shape, size, structure, etc. of the simulated plane figures are designed by appropriately changing them.

As described above, the intended purpose can be sufficiently achieved.

M construction machine _M1 vehicle body _M2 cab C _B rear monitoring camera C _R right side monitoring camera C _L left side monitoring camera C _BP installation position information C _RP installation position information C _LP installation position information S _B video signal T Imaging target I _M mirror image I _TR normal image I _TL normal image _IF posture information _IP image processing unit D display D _B rear display unit D _R right side display unit D _L left side display unit D _T tablet terminal D _M body information display unit

Claims (3)

A rear monitoring camera mounted on a vehicle body of a construction machine for imaging the rear of the vehicle body, a right side monitoring camera for imaging the right side of the vehicle body, a left side monitoring camera for imaging the left side of the vehicle body, and a cab of the construction machine. a rear display unit for displaying a mirror image of an object to be imaged behind the vehicle body based on the video signal from the rear monitoring camera, and a normal image of the object to be imaged on the right side of the vehicle body based on the video signal from the right side monitoring camera. and a display having a left side display portion for displaying a normal image of an imaging target on the left side of the vehicle body based on a video signal from the left side monitoring camera, wherein the display is provided with the vehicle body and a vehicle body information display section for displaying the installation position information of each surveillance camera, and a simulated plane figure of the vehicle body is displayed as the posture information of the vehicle body in the vehicle body information display section. Installation position information of the surveillance camera is displayed, the rear display section is arranged below the simulated plan figure of the vehicle body of the vehicle body information display section, and the right side of the simulated plan figure of the vehicle body of the vehicle information display section is positioned on the right side. A direction display section is arranged, and a left side display section is arranged at a left side position of the simulated plane figure of the vehicle body of the vehicle body information display section , and the rear display section, the right side display section, and the left side display section are arranged on the vehicle body. , the rear display section displays a mirror image of the object to be imaged behind the vehicle body, flipped 180 degrees upside down, and the right side display area displays the object to be imaged on the right side of the vehicle body. is rotated clockwise by 90 degrees, and the left side display section displays a normal image of an object to be imaged on the left side of the vehicle body by rotating counterclockwise by 90 degrees , and the display is The tablet terminal is attachable to and detachable from the vehicle body, each of the surveillance cameras is attached to the vehicle body by magnets, and an image processing unit is provided to connect the surveillance cameras and the display by a wireless system. A surveillance camera device for construction machinery, characterized by: One rear monitoring camera is installed at the rear center of the vehicle body, one right side monitoring camera is installed at the right side of the vehicle body, and one left side monitoring camera is installed at the left side of the vehicle body. 2. The surveillance camera device for construction machinery according to claim 1, characterized in that: Two rear monitoring cameras are installed on the left and right sides of the rear part of the vehicle body, one right side monitoring camera is installed on the right side of the vehicle body, and a left side monitoring camera is installed on the left side of the vehicle body. 2. The surveillance camera device for construction machinery according to claim 1, wherein a single surveillance camera device is installed.

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