PROBLEM TO BE SOLVED: To provide a suspension position measurement device for a floating crane and a suspension position measurement method of the floating crane capable of measuring a suspension position precisely on the basis of a GNSS antenna mounted to a gib.SOLUTION: A suspension position measurement device for a floating crane comprises: gib side GNSS positioning means for measuring a position of a GNSS antenna 20 supported on a gib 4; revolving part side GNSS positioning means for measuring a position of a GNSS antenna 30 fixed to a crane revolving part 3; gib azimuth measurement means 32 for measuring the azimuth of the gib 4; and calculation means for calculating a gib side reference position based on the position of the gib side GNSS antenna 20 and the gib azimuth, calculating a revolving center position of the crane revolving part 3 based on the position of the revolving part side GNSS antenna 30 and the gib azimuth, calculating a derricking angle θx of the gib 4 based on the gib side reference position and the revolving center position, and calculating a feeding position of a wire 6 based on the derricking angle θx.SELECTED DRAWING: Figure 1
【課題】ジブに取付けられたGNSSアンテナを基に精密な吊り位置の測定が可能なクレーン船用吊り位置測定装置及びクレーン船の吊り位置測定方法の提供。【解決手段】ジブ4に支持されたGNSSアンテナ20の位置を計測するジブ側GNSS測位手段と、クレーン旋回部3に固定されたGNSSアンテナ30の位置を計測する旋回部側GNSS測位手段と、ジブ4の方位を計測するジブ方位計測手段32と、ジブ側GNSSアンテナ20の位置及びジブ方位に基づきジブ側基準位置を算出し、旋回部側GNSSアンテナ30の位置及びジブ方位に基づきクレーン旋回部3の旋回中心位置を算出し、ジブ側基準位置と旋回中心位置とに基づきジブ4の起伏角θxを算出し、起伏角θxに基づいてワイヤー6の繰り出し位置を算出する演算手段とを備えた。【選択図】図1
SUSPENSION POSITION MEASUREMENT DEVICE FOR FLOATING CRANE AND SUSPENSION POSITION MEASUREMENT METHOD OF FLOATING CRANE
クレーン船用吊り位置測定装置及びクレーン船の吊り位置測定方法
2016-02-04
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
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