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Method for optimizing and analyzing shipping flight path

An analysis method and ship technology, applied in the direction of navigation calculation tools, etc., can solve the problem of not fully reflecting the ship's maneuvering performance and ship motion characteristics, and achieve the effect of accurate measurement

Inactive Publication Date: 2012-01-25
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

[0004] However, during the trial voyage of the ship, external disturbance factors (wind force and wind current, etc.) will have an impact on the ship's motion characteristics, and the ship's motion trajectory obtained by the DGPS and gyrocompass device is not an ideal ship motion trajectory. Situation and motion characteristics data cannot fully reflect the actual maneuverability and motion characteristics of the ship

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  • Method for optimizing and analyzing shipping flight path
  • Method for optimizing and analyzing shipping flight path
  • Method for optimizing and analyzing shipping flight path

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Embodiment Construction

[0023] Such as figure 1 , figure 2 As shown, a ship track optimization analysis method includes the following steps:

[0024] a) Initialize the detection system, and set the time interval for GPS to collect positioning point signals in the computer measurement system;

[0025] b) Knowing that the actual speed of the ship is V, use the bow DGPS receiver and the stern DGPS receiver to receive the positioning point signal output by GPS, and use the gyro compass to detect the actual heading angle of the ship , the wind velocity V f and direction θ, the actual speed V of the ship, the positioning point signal output by GPS, the actual course angle of the ship , wind speed V f and wind flow direction θ are output to the computer measurement system through the gateway;

[0026] c) Calculating the ideal speed V of the ship using a computer measurement system 0 :

[0027] In polar coordinates, the ideal speed of the ship V 0 and the ship's actual speed V, the ship's actual c...

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Abstract

The invention discloses an optimized ship track analytical method, belonging to the field of common ship sailing measurement and analysis. According to the actual sailing track of a ship, which is detected by a stem DGPS receiver, a stern DGPS receiver and an electric gyrocompass as well as wind-current and wind-force disturbing variable parameters measured by an anemoscope, a series of vector composition and dynamic regulation are carried out on the actual track data so as to modify the sailing track of the ship by optimized calculation, thus obtaining the corresponding sailing track when the ship sails on calm sea and determining more accurate parameters of movement performance during the trial voyage of the ship. With accurate measurement, the method is suitable for real-time detection.

Description

technical field [0001] The invention relates to a ship track optimization analysis method, which belongs to the field of general ship navigation measurement and analysis. Background technique [0002] After the ship is built and overhauled, a ship trial will be carried out to test the performance of the ship in all aspects. Among them, the maneuverability of the ship and the test of the ship's motion characteristics are two important contents. The test results will be used as an important basis for evaluating the ship's navigation performance. . [0003] The traditional test of ship maneuverability and ship motion characteristics is to provide corresponding data for ship navigation attitude and motion characteristics through the signal acquisition of DGPS and gyro compass device and the signal analysis and processing of computer system. Mainly include: (1) forward or backward speed of the ship; (2) bow traverse speed; (3) stern traverse speed; (4) ship rotation speed; (5) s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/20
Inventor 俞孟蕻黎敏雅潘宇星何祖军陈红卫李彦佘建国齐亮袁伟张永林
Owner JIANGSU UNIV OF SCI & TECH
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