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An XCTD remote command and data transmission method

A data transmission method and data transmission system technology, applied in the transmission system, phase modulation carrier system, electrical components, etc., can solve problems such as measurement failure, inability to adapt to seawater transmission, breakdown of the insulation layer of enameled wire, etc., and achieve strong electromagnetic resistance Effects of Interference and Noise Immunity

Inactive Publication Date: 2019-05-07
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Problems solved by technology

In the existing technology, in the actual transmission process, faced with the technical problem that the transmission method often used on land cannot adapt to the transmission in seawater, it is very easy to cause the enameled wire to be too thin or have pinholes in some sections or points of the enameled wire. The insulation layer of the enameled wire is broken down by the high voltage on the wire, resulting in the failure of the entire measurement

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  • An XCTD remote command and data transmission method

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] On the contrary, the invention covers any alternatives, modifications, equivalent methods and schemes within the spirit and scope of the invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. The present invention can be fully understood by those skilled in the art without the description of these detailed parts.

[0037] Aiming at the technical problem in the prior art that the enameled wire insulation layer is eas...

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Abstract

The invention belongs to the technical field of marine science investigation, and particularly relates to an XCTD remote command and data transmission method. The system performs switching between downlink command signal transmission from a deck unit to a probe and uplink data signal transmission from the probe to the deck unit based on a time division multiplexing time sequence of command and data transmission. And time division multiplexing of signals is realized on the same physical transmission path. According to the method, long-distance command and data transmission in seawater can be realized, high-fidelity data extraction is performed at a receiving end, effective transmission of XCTD data is finally realized, and the method has relatively high anti-electromagnetic interference andanti-noise capabilities.

Description

technical field [0001] The invention belongs to the technical field of marine scientific investigation, in particular to an XCTD long-distance command and data transmission method. Background technique [0002] Disposable temperature, salinity and depth profiler (XCTD——Expendable Conductivity, Temperature, and Depth Profiler) is easy to use, and can quickly obtain profile data such as temperature, salinity, and depth in large areas of sea area, and provide a advanced measurement methods. Since seawater temperature, salinity and other parameters are of great significance to the safety of submarine navigation, concealment, underwater communication, underwater attack, and submarine detection and anti-submarine operations of surface ships and aircraft, the throw-away thermosalinity measurement The development of the instrument has always been valued and supported by the military, and has developed rapidly. [0003] For the key measurement technology of disposable equipment, fo...

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Application Information

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IPC IPC(8): H04L27/20H04B13/02
Inventor 陈光源杜立彬贺海靖雷卓崔辰元张启升吴承璇
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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