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With the boom to the right and the engine/pump compartment behind the cab, excavators have limited lines of sight behind and to the right rear of the machine. Komatsu’s solution is a multi-camera system that gives operators a birds-eye view of the area around their excavators.
The company has made rear-vision cameras standard on its excavators for the last 10 years and also offered a second optional camera that provided a camera view of the right rear area. But recently they decided to add a three-camera option on small excavators and a four-camera option on the bigger models.
The multi-camera views are digitally stitched together to give you a complete look around the machine in real time. It’s called KomVision. The cameras pickup 300 degrees for standard excavators and 240 degrees with short tail excavators. Those viewing angles, combined with the operator’s sight lines from the cab yield a 360-degree field of vision.
“A lot of excavators work in urban environments, around people, right of ways, telephone poles, cars, and congested areas,” says Kurt Moncini, senior product manager for tracked products. “You might have six or seven machines operating in an area that’s not much bigger than a baseball field. “KomVision gives you significantly better situational awareness.”
In addition to the wrap around views, the new system also shows you via a series of lines, the location and path of the machine’s counterweight, says Moncini. These work just like the backup cameras in today’s cars, showing you where the rear bumper is headed and how close it is to the nearest object.
“One line shows you the counterweight swing radius,” says Moncini. “Anything inside of it could potentially come in contact with the counterweight. We put the other line two meters out from the counterweight.”
The cameras are located on the top left, rear and right sides of the rear compartment and provide a broad field of view. The cab monitor displays the birds eye view on the left and a selectable single camera view on the right. If desired, the operator can change to a full screen image of any individual camera.
In the United States the KomVision will be offered on the Komatsu PC138USLC-11, PC170LC-11, PC238USLC-11, HB365LC-11 and PC650LC-11, excavators.