Pipe joint sinking coarse positioning system and method based on slings of sinking pipe transportation and installation integrated ship

• Main Authors: LIU ZHAOQUAN, YUE YUANZHENG, SUO XUHONG, ZHOU XIANGRONG, WANG QIANG, NING JINJIN, ZHU YONGSHUAI, PAN WEI, TAO ZHENJIE, ZHU LING, CHENG YIPIN, ZHANG CHAO, GUAN ZEXU
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; EQUIPMENT FOR SHIPPING; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PERFORMING OPERATIONS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; SURVEYING; TESTING; TRANSPORTING

The invention belongs to the technical field of immersed tube measurement and control, and relates to a pipe joint immersion coarse positioning system and method based on a sling of an immersed tube transportation and installation integrated ship. The system comprises four sets of positioning assemblies which are arranged at four pulley wells of an integrated ship, wherein each set of positioning assembly comprises a marking line, a binocular camera shooting positioning instrument, a measuring rod and a depth finder transducer; the marking line is reflective, is laid on a sling fixedly connected with the integrated ship in the pulley block and extends in the length direction of the sling; the binocular camera shooting positioning instrument is mounted on the side wall of the pulley well and faces the marking line to measure the direction angle of the marking line; the measuring rod is vertically mounted at the pulley well, and the bottom end of the measuring rod protrudes out of the bottom of the integrated s