Speed information fusion method
A speed information and fusion method technology, which is applied to devices using electric/magnetic methods, complex mathematical operations, etc., can solve the problems of large ship size, easy fluctuations in speed measurement, difficulty in real-time, accurate and stable speed measurement, and achieve accurate speed. , the result is accurate
Active Publication Date: 2019-12-27
中国船舶集团有限公司第七零七研究所九江分部
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Problems solved by technology
Large surface ships have a large shape, and a bubble-rich layer is formed on the bottom of the ship during navigation. As the speed of the ship changes, the bubble layer is free on the bottom of the ship, and the speed measurement is prone to fluctuations, which brings great difficulties and challenges to real-time, accurate and stable speed measurement.
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[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0052] See attached figure 1 , The embodiment of the present invention discloses a speed information fusion method, including:
[0053] 1) Layout of measuring points: A number of speed measuring points are arranged in a triangle on the ship, and each speed measuring point is equipped with a sensor and amplifier;
[0054] Preferably, considering the requirements of cost and real-time calculation, three speed measurement points are arranged i...
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The invention discloses a speed information fusion method. The speed information fusion method comprises the following steps of: 1) measurement point layout: a plurality of speed measurement points are arranged in a triangle on a ship, and each speed measurement point is equipped with a sensor and an amplifier; 2) data acquisition: the sensor and the amplifier are used for obtaining the speed information, and the navigation system is used for obtaining the screw shaft speed and heading; and 3) data fusion: fusion calculation is performed on the data obtained in step 2) based on the navigational status of the ship to obtain the speed of the ship; wherein the navigational status of the ship is determined and obtained through the speed information and the screw shaft speed and heading. The speed fusion method provided by the invention not only takes into account the credibility of the measured value, but also considers the influence of the navigational status of the ship on the speed measurement, so that the speed obtained finally is more accurate and stable.
Description
Technical field [0001] The invention relates to the technical field of large-scale surface ship speed measurement, and more specifically to a speed information fusion method. Background technique [0002] The take-off and landing of large-scale surface ships and aircraft is the basic operation. During the take-off and landing of the aircraft, the speed of the ship is the basic element. Therefore, the real-time speed, accuracy and stability of the speed are required to be high. Large-scale surface ships have a large ship type, and a bubble-rich layer is formed at the bottom of the ship when sailing. With the change of ship speed, the bubble layer is free in the bottom of the ship, and the speed measurement is prone to fluctuations, which brings great difficulties and challenges to real-time, accurate and stable speed measurement. [0003] Therefore, how to improve the accuracy of speed measurement of large-scale surface ships is an urgent problem for those skilled in the art. Summa...
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IPC IPC(8): G01P3/50G06F17/18
CPCG01P3/50G06F17/18
Inventor 郑树春马新玉刘国庆谢华伟
Owner 中国船舶集团有限公司第七零七研究所九江分部