Surrounding monitoring device for working machines

Abstract

The present invention provides a peripheral monitoring device for a working machine, comprising: an obstacle detection unit (400) for detecting the existence of an obstacle around the working machine using an image captured by a camera (13); A position calculation unit (500) that calculates the position of the obstacle based on the working machine; a dangerous area calculation unit (700) that calculates a dangerous area based on the posture and motion of the work machine; a judgment unit (800) that determines whether there is an obstacle within the calculated dangerous area ); a risk level setting unit (2000) for setting the contact risk level with respect to obstacles within the danger range; an image generation unit (600), which converts the camera image into a top view image centered on the work machine, and converts it from the The risk level setting unit looks down on the overhead view image above the obstacle for which the highest contact risk level is set, thereby creating an image including the work machine and the entire danger area on the overhead view image; and creating the The display device (1300) for displaying the image. Thereby, since the operator can instantly grasp the position of the most dangerous obstacle with respect to the work machine, the work efficiency by the work machine can be improved.

Description

technical field [0001] The present invention relates to a peripheral monitoring device for monitoring obstacles around a work machine. Background technique [0002] Surrounding monitoring devices for working machines such as hydraulic excavators are used to monitor the surroundings of the working machine with a camera or the like to prevent contact with people and objects (obstacles) around the working machine during work. Among such techniques, as a technique for making it easier for the operator to grasp the positional relationship between the work machine and surrounding obstacles, there is a technique for superimposing and displaying on the display device an image showing the working state when the work is to be performed. Images that depict the posture of the machine and its working range, convert the image around the machine captured by the camera into a bird's-eye view image viewed from the viewpoint above the machine, and draw obstacles properly detected by a detecti...

AI Technical Summary

Problems solved by technology

However, when a plurality of obstacles are displayed around the work machine, it is necessary to determine which obstacle is most likely to be in contact with

In this case, the operator himself has to make this judgment, and this judgment work will inevitably intervene between normal work (excavation work)

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