BR-102023021872-B1 - COMPUTER-IMPLEMENTED METHOD FOR CUTTING AREA MARKING APPLIED TO A TRACING GRIP

Abstract

A computer-implemented method for marking the cutting area applied to a claw cutter is described. This method comprises an image acquisition step using a camera installed on the vehicle and/or the claw cutter, and a step of visualizing the original image on a monitor to define reference lines that guide the cutting blade.

Inventors

• ELIEL BURIGO BORGES

Assignees

• POTENZA COMÉRCIO E FABRICAÇÃO DE EQUIPAMENTOS HIDRÁULICOS LTDA

Dates

Publication Date

20260317

Application Date

20231020

Claims (1)

1. 1. COMPUTER-IMPLEMENTED METHOD FOR CUTTING AREA MARKING APPLIED TO A TRACING GRIP characterized by comprising the following steps: a) obtaining an image of the log; b) displaying the original image on a display unit (SU); c) inserting reference lines (RL) onto the original image; d) aligning the saw blade in accordance with said reference line (RL) visualized on the display unit (SU).

Description

FIELD OF THE INVENTION [01] This invention patent describes a computer-implemented method for marking the cutting area applied to a marking claw. More specifically, it comprises an image acquisition step using a camera installed on the base machine (excavator), a step of viewing the original image on a monitor to define reference lines that guide the saw blade to perform the cut, keeping the operator away from the risk area. BACKGROUND OF THE INVENTION [02] Log grapples are devices for handling and cutting logs using a blade. They are usually installed on the arm of excavators and have clamps that allow for the agile and efficient movement of logs in forest and industrial areas. [03] For cutting the log, scales are provided near the saw blade and, as it depends on the operator's skill in positioning the end of the blade at the end of the bundle to be cut, there is relative dimensional variation in the final product (cut wood). [04] Technical solutions for marking cuts in wood are described for various cutting tools. [05] Document DE202006001740 describes a marker for wood to be cut into firewood of a specified length comprising a ruler with a spike at one end that is pushed into the wood, spraying on the opposite end of the ruler then allowing the colored stain to be marked on it. [06] Document CN111195944 describes an electric saw consisting of a machine body, the lower end of the machine body is provided with a saw blade, a camera device is arranged in the machine body and located above the front end of the saw blade, the rear side of the machine body is provided with a display screen and the display screen is electrically connected to the camera device to assist the user in better observing the cutting direction of the saw blade. [07] US5257101 document describes an apparatus for optically scanning a log and selecting an ideal orientation for sawing the log. The apparatus includes a camera and a computer system connected to the camera. The log holder consists of a set of rollers to facilitate log rotation and a red background to provide visual contrast with the log. Fluorescent lights directed towards the log are fixed to a frame and directed towards the log to provide uniform illumination for scanning the log. The camera is mounted on the frame for parallel movement along the length of the log to obtain optical images of the entire log, one section at a time. The log is rotated 180 degrees in each section to scan the entire outer surface. The computer system comprises an interface to convert the optical images into computer images. The computer system also includes software to generate a computational model of the log and its nodes, to simulate sawing the log into planks, to classify the planks, and to assign a yield value to the planks. [08] Document EP0406219 describes a band saw equipped with a television camera in the band saw region. An image of the piece of wood to be cut is generated on a television screen. A line representing the plane in which the band saw operates is provided on the television. Thus, it is possible to establish on the television screen whether the piece of wood is correctly aligned with respect to the band saw and to observe the alignment of the piece of wood. [09] State-of-the-art solutions involve systems of medium complexity, involving computer programs for image digitization and definition of the cutting area. Generally, existing methods are directed towards verifying the positioning of the part to be cut in relation to the saw and, when guides for cutting are defined, they are generated by providing contrasts and forming three-dimensional images. [010] However, in tracer claws, where cutting operations are performed in the field, the cutting is carried out using physical guides, such as rulers. In this situation, the operator works in the risk area, adapting the scale fixed to the cutting conditions. [011] In order to avoid exposing the worker to risk and to allow adjusting the cut to the conditions of each log to be processed, the present invention relates to a computer-implemented method for marking the cutting area applied to a marking gripper. BRIEF DESCRIPTION OF THE FIGURES [012] Figure 1 shows the tracked claw installed on an excavator. [013] Figure 2 shows the delimitation of the cutting area in the image of the log obtained from the camera, in order to guide the trajectory of the saber. DETAILED DESCRIPTION OF THE INVENTION [014] The computer-implemented method for marking the cutting area applied to a tracking claw, object of the present invention, comprises a first stage of obtaining an image of the log of wood through a camera (C) installed on the base machine (excavator) to which said tracking claw is associated, as shown in figure 1. [015] The image obtained is sent to a display unit (SU), preferably installed in the equipment cabin to which the tracer grapple is attached. In the display unit (SU), the operator selects the image and inserts reference lines (