Control system and control method for marine geological winch based on environmental parameter analysis

Abstract

The invention relates to a control system and a control method for a marine geological winch based on environmental parameter analysis. The control system for the geological winch adopts a hierarchical structure model design method and function modularization means to realize automation for a winch control process; automatic control is realized for three main procedures of cable contracting and releasing mode selection, cable discharge speed and winch braking in the winch control process, so that long-term unattended requirement can be met. The control system for the marine geological winch is used for receiving the shipping information data of ship-borne equipment such as GPS (Global Positioning System) position, ship heading and the like and surveying equipment data such as flow velocity, flow direction and the like and the operating data of the winch such as cable outlet length, cable discharge speed, cable tension and the like; the operations of deciding, sending and carrying out the control commands of the winch are automatically completed. The control system and the control method solve the practical problems of high practicability, poor emergency and the like in the traditional winch control process, so that the degree of controlling the winch by manpower participation is reduced, the manpower cost is reduced, and the sampling efficiency of marine research is improved.

Description

technical field [0001] The invention relates to the technical fields of marine scientific research and seabed detection, in particular to a control system and control method of a marine geological winch based on environmental parameter analysis. Background technique [0002] Marine geological winches are widely used in marine scientific research, especially in marine geological sampling. The control of the marine geological winch includes three main aspects: the selection of the retracting and unwinding cable mode, the speed control of the pulling and pulling, and the braking control of the winch. During the current marine geological expedition, the control of the marine geological winch is completely done manually. In the actual control process, there are the following problems: (1) Understand the current ship information through the walkie-talkie or manual transmission: ship heading, ship speed, GPS information, etc., as well as the environmental parameters of the operati...

AI Technical Summary

Problems solved by technology

The real-time information is difficult to guarantee, which affects the winch operator's control of the cable discharge speed and winch braking when approaching the sampling seabed

(2) In the process of marine scientific research and seabed sampling, the depth of the sea area is often above 5000m, resulting in a long duration of the control process of the marine geological winch, coupled with strong mutations in sea conditions and flow directions, making it difficult for the winch operator to maintain the working state continuously

(3) When an emergency occurs, the winch operator usually determines the change of cable discharge speed or whether to perform emergency braking based on traditional experience. There is a lack of clear and unified discrimination rules and methods, which may easily lead to operational errors and unnecessary losses.

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