ARM POSITION DETECTION SYSTEM FOR CONSTRUCTION MACHINE
To provide an arm position detection system for construction machines that can reduce the number of angle sensors.SOLUTION: An arm position detection system of the present invention comprises a camera fixed to a construction machine and a computing device. The computing device has a machine-learned...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide an arm position detection system for construction machines that can reduce the number of angle sensors.SOLUTION: An arm position detection system of the present invention comprises a camera fixed to a construction machine and a computing device. The computing device has a machine-learned AI that extracts a position of a second joint and a position of a third joint of the construction machine from the video taken with the camera toward the working direction of the construction machine, and outputs the video coordinates of the position of the second joint and the position of the third joint, a coordinate transformation unit that transforms the video coordinates into a two-dimensional real space coordinate system by means of a predetermined projection vector and outputs transformed coordinates, and a filtering unit that corrects the transformed coordinates to true coordinates that can actually be taken from the pre-stored dimensional information of the construction machine and outputs them. The number of angle sensors, which may cause failures, is reduced, and the work interruption time due to angle sensor failures can be reduced.SELECTED DRAWING: Figure 3
【課題】角度センサの数を削減できる建設機械のアーム位置検出システムの提供。【解決手段】本発明のアーム位置検出システムは、建設機械に固定されたカメラと、演算装置とを備える。そして、上記演算装置が、上記カメラが建設機械の作業方向を撮影した映像から、上記建設機械の第2関節部の位置と第3関節部の位置を抽出し、上記第2関節部の位置と上記第3関節部の位置の映像座標を出力する機械学習済AIと、上記映像座標を、予め設定された射影ベクトルにより2次元の実空間座標系に変換し変換座標を出力する座標変換部と、上記変換座標を、予め記憶した建設機械の寸法情報から実際に取り得る真座標に修正して出力するフィルタリング部と、を有しており、故障の原因となる角度センサの数が削減され、角度センサの故障による作業中断時間を削減できる。【選択図】図3 |
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