The method of long-distance and automatic collection of ship power system parameters

Abstract

The invention discloses a method for remotely and automatically collecting parameters of a ship's power system. Firstly, the current operating parameters of electrical equipment are sampled and held, discretized, encoded, and modulated through a collector to form a high-frequency carrier signal through a coupling circuit of the collector. Coupled into the lighting grid cable, it is transmitted to the concentrator through the lighting cable. The concentrator filters the high-frequency carrier signal from the lighting grid cable, demodulates and decodes it, and obtains the current operating parameters of the electrical equipment. The coupling circuit in the collector of the present invention is conjugate-matched to the lighting cable of the ship, which can realize the maximum transmission power of the carrier signal. The filter circuit in the concentrator matches the lighting cable of the ship without reflection, and the high-frequency carrier signal filtered out is Interferenced by reflected waves, the noise of the ship's lighting grid within the communication frequency band is small, and it has a better communication signal-to-noise ratio.

Description

Technical field [0001] The invention relates to a method for remotely automatically acquiring parameters of a ship's power system, in particular to a method for remotely automatically acquiring parameters of a ship's power system applied to a ship's lighting power grid. Background technique [0002] The communication connection of various data terminals of modern ships is realized through marine communication cables. Generally, communication lines are laid for point-to-point communication according to specific requirements. The construction faces many physical laying processes, which damage the watertight performance of each cabin. A small number of large ships adopt CAN bus, which consumes a lot of manpower and material resources and needs to plan in advance to reserve space and ports. However, with the rapid development of technology, especially naval ships need to constantly update and add equipment to maintain advanced combat capabilities. The increase in each type of equipme...

AI Technical Summary

Problems solved by technology

A small number of large ships have adopted the CAN bus, which consumes a lot of manpower and material resources and requires planning in advance to reserve space and ports

However, with the rapid development of technology, especially naval ships need to constantly update and add equipment to maintain advanced combat power. The increase of each type of equipment brings an increase in interfaces and requires more cables to connect. Continuously laying communication cables The way to meet the increase of communication ports and the requirements of collecting electrical information parameters will bring about problems such as high cost, large amount of engineering, reduced watertightness, and interference with the normal operation of ship equipment. Therefore, if we can rely on the widely distributed ship lighting network, Utilizing the characteristics of power carrier communication using power cables as the communication medium, establishing a power carrier communication platform can save the laying of communication cables and realize a wide range of power system parameter information collection

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