A scientific investigation ship capable of low-speed and constant-speed towing operations

Abstract

The invention discloses a scientific investigation ship capable of low-speed and constant-speed towing operations, including a hull, a towing mechanism with a towing cable and a cable winch arranged on the hull, and a control system. The control system includes a measuring part, a control part, the power part and the thruster part, the control part includes a controller with a parameter setting input unit, and a computer software system connected with the controller, and also includes when the ship sails at a constant speed according to the set course and speed, when the ship is subjected to lateral When the wind and sea current act, a signal is sent to the controller, and the controller sends a reverse compensation to the thruster part, an automatic adjustment system that quickly adjusts the ship's heading to rotate in the direction of the resultant force of the wind and sea current. The invention can ensure that when the ship needs to adjust the heading due to lateral resistance, it can still pull the towline accurately and stably, avoiding the impact on detection instruments such as underwater acoustic equipment caused by resistance such as waves and currents, and making the data of towing detection more accurate .

Description

technical field [0001] The invention relates to the technical field of ship control, in particular to a scientific investigation ship that can realize low-speed and constant-speed towing operations. Background technique [0002] Ship towing is the most important operation of sea towing or sea towing. When the ship is sailing, it is required to be towed by other ships to assist in completing the task, or due to shipwreck, rocking, collision, etc. during the voyage, it must be towed by other ships to assist in towing from one water area to another. There are two ways to drag and drop - "drag" and "push". Ship towing is generally achieved by signing a towing contract in advance, stipulating the start and end of towing fees and towing responsibilities, as well as the responsibilities and rights between the tugboat and the towed vessel. In a broad sense, in addition to the towed object is also a ship, ship towing also includes towing other floating objects on the sea from one p...

AI Technical Summary

Problems solved by technology

[0004] The content disclosed in the above-mentioned patented technology solves the problems of safety and reliability of ship towlines, reduces wear and improves the service life of the cables, but it is only for the improvement of the towlines themselves, and the underwater detection equipment connected to the towlines cannot achieve low-speed, constant speed stability control

In marine data detection operations, towlines are required for towing operations. The towlines mainly include main cables with sufficient strength to withstand traction and cables for providing power and signal transmission to underwater acoustic equipment and other detection instruments. At present, in order to effectively solve the problem of being towed The problem that the tugboat cannot control the course caused by the swaying of objects, adopts various mechanisms to fix the position of the tow cable such as the cable discharge device, but it is still unable to fix the tow cable accurately and stably, so as to avoid damage to the underwater acoustic equipment due to resistance such as waves and currents. and other detection instruments, so it is impossible to ensure that the underwater detection instruments move stably with the ship

Moreover, in order to ensure the accuracy of the data during the towing detection, the ship needs to sail at a low and constant speed when towing the cable. As we all know, when the ship sails at a low speed of less than 3 knots, it is difficult to achieve stable control of the speed. There is no good way to control towing operations

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