Variable parameter type deepwater net cage mooring force collector

Abstract

The invention discloses a variable parameter type deepwater net cage mooring force collector. The variable parameter type deepwater net cage mooring force collector is mainly composed of an analog quantity force sensor, a signal conditioning device, a sampling holder, an A / D converter, a microprocessor, a data storage unit, a keyboard and a power supply device, wherein the values of sampling frequency and low-pass filtering cut-off frequency are small, and the sampling frequency and the low-pass filtering cut-off frequency can be controlled by a software program to change simultaneously so that the proportional relation between the sampling frequency and the low-pass filtering cut-off frequency can meet requirements on any conditions, and frequency mixing and distortion of mooring force sampling data can be avoided; the A / D converter has a large number of bits, thereby being high in conversion accuracy. The variable parameter type deepwater net cage mooring force collector achieves distortionless measurement of mooring force when signal frequency components are not completely certain; on the premise of guaranteeing the sampling accuracy, researchers can set mooring force sampling parameters flexibly according to different wave conditions and the requirements of different research targets; besides, commands are input in two modes, namely the keyboard mode and the wireless transmission mode, so the requirements for field collection and remote collection can be met at the same time.

Description

technical field [0001] The invention relates to an instrument for measuring the mooring force of an ocean floating system, in particular to an instrument for collecting mooring force of a deep-water net cage. Background technique [0002] Human beings' growing demand for food is increasingly dependent on mariculture. The output of a HDPE C43 deep-water cage can reach 40 times that of traditional cages. The development of large-scale deep-water cage culture is an important strategy for the development of my country's fishery. However, there are fatal safety problems in deep-water cage culture. Because the breeding site is located in the open sea, under the action of strong typhoon, the mooring cables on the cages often break, and the cages that lose their effective mooring function will drift and collide with each other under the action of the typhoon. The fry will die in large numbers. For example, from the end of September to the beginning of October 2011, two typhoons, N...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of undistorted measurement of the mooring force when the frequency component of the signal is not completely determined, and to overcome the deficiency that the existing floating system mooring force measurement device cannot dynamically change the sampling parameters according to the needs, the present invention provides a variable parameter deep water net cage Tether Force Collector

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