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Ship high-precision control method

A control method and high-precision technology, applied in attitude control, electrical program control, program control in sequence/logic controllers, etc., and can solve problems such as uncontrollable ships, ship inclination, roll, pitch, etc.

Active Publication Date: 2012-08-15
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the navigation of the ship in the water, due to the existence of natural factors such as wind force, current, etc., the ship will be affected by tilting, rolling, pitching, etc. In order to overcome the above difficulties, in general, manual steering is used, and the helmsman controls the ship manually. In manual operation, it is easy to be restricted by experience, body, operating environment, etc. Once the helmsman leaves the operating position due to unexpected circumstances such as violent storms, large waves, etc., the ship will be in an uncontrollable state, and there is a great risk

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Embodiment Construction

[0028] The embodiments of the present invention will be further described below in conjunction with the drawings. The steering gear system and the ballast tank system are used to adjust the posture composition of the ship, and the control computer, data acquisition card, sensor, servo control card, and servo drive constitute the ship navigation control system. , Using multi-threaded software for implementation control, which is characterized by:

[0029] The control method of the present invention includes the following steps:

[0030] (1) The sensor continuously collects the ship's inclination and sway data at a fixed time interval within 50ms-20ms;

[0031] (2) The collected data is input to the control computer through the data acquisition card;

[0032] (3) The control computer calculates the sensing data according to a certain ship attitude adjustment conversion parameter (ship control transfer function) to obtain the conversion data, and send the concurrent data to the servo con...

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Abstract

The invention discloses a ship high-precision control method which can effectively overcome the effects of natural factors, greatly reduce the risks brought by manual operation in ship control and realize automatic real-time control. The ship high-precision control method is characterized by comprising the following steps of: (1) continuously acquiring the data of tilt degree, swing degree, and the like of ships periodically according to a fixed time interval from 50ms to 20ms by a sensor; (2) inputting the collected data into a control computer through a data acquisition card; (3) calculating sensing data according to certain ship attitude adjustment conversion parameters (a transfer function controlled by the ship) by the control computer to obtain conversion data and sending concurrentdata to a servo control card; (4) controlling the servo control card by the control computer according to a control algorithm and sending the control data to a steering engine or a water ballast space control system adjusting the balance of the ship periodically by the servo control card at the time interval same with the acquired data in the step (1); (5) adjusting navigation attitudes of the ship by a steering engine system or the water ballast space system according to the control data; and (6) repeating the steps from (1) to (5).

Description

Technical field [0001] The invention relates to the field of ship control, in particular to a high-precision control method for ships. Background technique [0002] When the ship is sailing in the water, due to the existence of wind, current, and other natural factors, the ship will have tilt, roll, pitch and other effects. In order to overcome the above difficulties, artificial steering is generally used, and the helmsman controls the ship. When maneuvering manually, it is easily restricted by experience, body, and operating environment. Once the helmsman leaves the maneuvering post due to unexpected conditions such as violent storms, big waves, etc., the ship will be in an uncontrollable state, and there is a great risk. Summary of the invention [0003] The present invention provides a high-precision control method for a ship in view of the above-mentioned shortcomings of the prior art, which can effectively overcome the influence of natural factors, greatly reduce the risk cau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04G05D1/08
Inventor 张峰马骏胡勇
Owner CHINA SHIP DEV & DESIGN CENT