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Method and system for determining attitude of embedded plough entrance based on induction coil
The invention relates to the technical field of submarine cable laying, and particularly discloses an embedded plough entrance attitude determination method and system based on an induction coil, and the method comprises the steps: arranging an excitation coil, a first induction coil array and a second induction coil array on three surfaces (the upper part, the front side and the rear side) of a submarine cable at a plough entrance; the excitation coil generates an alternating magnetic field under excitation of a preset alternating current source, a metal medium in the submarine cable generates eddy current after sensing the alternating magnetic field, and the eddy current generates a reverse magnetic field. The magnetic field intensity of the reverse magnetic field on the two mutually perpendicular planes is further obtained by detecting the induced electromotive force of the first induction coil array and the second induction coil array, the three-dimensional posture of the corresponding submarine cable section is further determined according to the size and distribution of the induced electromotive force, and the submarine cable three-dimensional posture detection device can be applied to the seabed of any water condition and is wide in applicability.
本发明涉及海缆敷设技术领域，具体公开了一种基于感应线圈的埋设犁入犁口姿态确定方法及系统，通过在入犁口处海缆的三面(上方、前侧、后侧)设置激励线圈、第一感应线圈阵列和第二感应线圈阵列，激励线圈在预设交流源的激励下产生交变磁场，海缆中的金属介质感知到交变磁场后产生电涡流，而涡流又会产生一个反向磁场，进一步通过检测第一感应线圈阵列、第二感应线圈阵列的感应电动势获取该反向磁场在两个相互垂直的平面上的磁场强度，进一步根据感应电动势的大小和分布确定对应的海缆段的三维姿态，可应用于任何水况的海底，适用性广。
Method and system for determining attitude of embedded plough entrance based on induction coil
The invention relates to the technical field of submarine cable laying, and particularly discloses an embedded plough entrance attitude determination method and system based on an induction coil, and the method comprises the steps: arranging an excitation coil, a first induction coil array and a second induction coil array on three surfaces (the upper part, the front side and the rear side) of a submarine cable at a plough entrance; the excitation coil generates an alternating magnetic field under excitation of a preset alternating current source, a metal medium in the submarine cable generates eddy current after sensing the alternating magnetic field, and the eddy current generates a reverse magnetic field. The magnetic field intensity of the reverse magnetic field on the two mutually perpendicular planes is further obtained by detecting the induced electromotive force of the first induction coil array and the second induction coil array, the three-dimensional posture of the corresponding submarine cable section is further determined according to the size and distribution of the induced electromotive force, and the submarine cable three-dimensional posture detection device can be applied to the seabed of any water condition and is wide in applicability.
本发明涉及海缆敷设技术领域，具体公开了一种基于感应线圈的埋设犁入犁口姿态确定方法及系统，通过在入犁口处海缆的三面(上方、前侧、后侧)设置激励线圈、第一感应线圈阵列和第二感应线圈阵列，激励线圈在预设交流源的激励下产生交变磁场，海缆中的金属介质感知到交变磁场后产生电涡流，而涡流又会产生一个反向磁场，进一步通过检测第一感应线圈阵列、第二感应线圈阵列的感应电动势获取该反向磁场在两个相互垂直的平面上的磁场强度，进一步根据感应电动势的大小和分布确定对应的海缆段的三维姿态，可应用于任何水况的海底，适用性广。
Method and system for determining attitude of embedded plough entrance based on induction coil
基于感应线圈的埋设犁入犁口姿态确定方法及系统
ZHANG ZHIGANG (author) / MA XINGDUAN (author) / GU WEI (author) / HUANG BIN (author) / YAO TING (author) / CHANG SHUBANG (author)
2024-09-13
Patent
Electronic Resource
Chinese
UNDERWATER PLOUGH AND METHOD OF OPERATING AN UNDERWATER PLOUGH
| European Patent Office | 2023