A Triple Redundant Ship Dynamic Positioning Control Computer System

A computer control and dynamic positioning technology, applied in general control systems, control/regulation systems, two-dimensional position/channel control, etc., can solve problems such as system failure, improve reliability and maintainability, and improve System reliability, effect of eliminating single point of failure

Active Publication Date: 2015-10-21
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once the arbitration unit fails, it will form a single point of failure, and the entire system cannot operate normally.

Method used

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  • A Triple Redundant Ship Dynamic Positioning Control Computer System
  • A Triple Redundant Ship Dynamic Positioning Control Computer System
  • A Triple Redundant Ship Dynamic Positioning Control Computer System

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Experimental program
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specific Embodiment approach 1

[0012] Specific implementation mode one: the following combination figure 1 This embodiment will be specifically described. This embodiment includes the sensor group 3 and the same three control subsystems, each control subsystem includes a computer module 1 and a redundant arbitration module 2 connected thereto, and the communication ports of the three redundant arbitration modules 2 Form a two-by-two interconnection structure between the arbitration modules to complete the transmission of synchronous information and heartbeat signals between the arbitration modules. The data output ends of the sensor group 3 are respectively connected to the data input ends of the computer modules 1 of each control subsystem. The three computer modules 1 are respectively connected to the three redundant arbitration modules 2 through communication buses.

[0013] The redundant arbitration module 2 judges the failure of the computer module 1 by monitoring the heartbeat signal of the computer...

specific Embodiment approach 2

[0040] Specific implementation mode two: the following combination figure 2 This embodiment will be specifically described. The improvement of the present embodiment with respect to the first embodiment is that the sensor group 3 includes the same three data acquisition modules 6 and the same three sets of sensors; The input terminals, the three data output terminals of each data acquisition module 6 are respectively connected to the data input terminals of the computer module 1 of a control subsystem.

[0041] Redundant sensor data acquisition principle:

[0042] The sensors of the ship dynamic positioning system are: wind sensor, used to measure wind speed and direction; attitude sensor, used to measure ship attitude, including pitch, roll, heave; gyro compass, used to measure ship heading; differential GPS, used It is used to measure the absolute position of the ship; the hydroacoustic positioning system is used to measure the relative position of the ship. The DP-3 dyn...

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Abstract

The invention relates to a dynamic positioning system for a vessel, in particular to a triple-redundancy dynamic positioning control computer system for the vessel. The system overcomes the defect that as one independent arbitration unit conducts monitoring and redundancy switching on operating conditions of three computers, the whole dynamic positioning system for the vessel fails once the arbitration unit breaks down. The system comprises a sensor group (3) and three identical control subsystems and is characterized in that each control subsystem comprises a computer module (1) and a redundancy arbitration module (2) connected with the computer module (1); pairwise interconnection structures are formed among communication ports of three redundancy arbitration modules (2); and a data output end of the sensor group (3) is connected with a data input end of the computer module (1) of each control subsystem.

Description

technical field [0001] The invention relates to a ship dynamic positioning system, in particular to a redundantly set ship dynamic positioning control computer system. Background technique [0002] Ship dynamic positioning (Dynamic Positioning, DP) system refers to the use of the ship's own propeller system to resist the interference of the ocean environment force under the condition of wind, wave and current interference, and dynamically control the ship to stop at a certain position or along a certain position. A closed-loop control system for scheduled trajectory operations. Its advantage is that the positioning cost will not increase with the increase of water depth, and it is easy to operate. In addition to being used for fixed-point operations of ships or offshore platforms, ship dynamic positioning technology can also control the ship's navigation trajectory, so it is also used in the laying of submarine cables and pipelines, ocean surveys, sea rescue, dredging opera...

Claims

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Application Information

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IPC IPC(8): G05B15/02G05D1/02G05D1/08
Inventor 赵大威丁福光林孝工陈兴华王成龙刘建旭王元慧刘向波边信黔
Owner HARBIN ENG UNIV
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