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...

Examples

Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0026] figure 1 This is a flow chart for implementing the collection of operational parameters of the ship’s power system in the present invention. The steps are as follows: 1) The carrier communication concentrator initiates polling of the collector, and the collector samples the operating parameters of the electrical equipment to discretize the sampled values. Encode it as a sequence of digital symbols P(n), and modulate it into a high-frequency carrier signal D(t);

[0027] 2) The collector couples the modulated signal D(t) into the ship's lighting grid cable for transmission, and the concentrator filters out D(t) from the cable;

[0028] 3) The concentrator demodulates and decodes the carrier signal from each collector, stores and updates the current operating parameter values ​​of electrical equipment, alarms abnormal values, and waits for T time b...

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...

Examples

Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0026] figure 1 This is a flow chart for implementing the collection of operational parameters of the ship’s power system in the present invention. The steps are as follows: 1) The carrier communication concentrator initiates polling of the collector, and the collector samples the operating parameters of the electrical equipment to discretize the sampled values. Encode it as a sequence of digital symbols P(n), and modulate it into a high-frequency carrier signal D(t);

[0027] 2) The collector couples the modulated signal D(t) into the ship's lighting grid cable for transmission, and the concentrator filters out D(t) from the cable;

[0028] 3) The concentrator demodulates and decodes the carrier signal from each collector, stores and updates the current operating parameter values ​​of electrical equipment, alarms abnormal values, and waits for T time b...

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