Combined determination method and device for seabed bottom-supported measurement equipment bottoming process

A measurement equipment and bottom-mounted technology, which is applied to measurement devices, geophysical measurements, radio wave measurement systems, etc., can solve problems such as equipment damage and inconvenience in operation, and achieve the effects of easy implementation, improved reliability, and avoidance of misoperation

Active Publication Date: 2018-11-02
THE FIRST INST OF OCEANOGRAPHY SOA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is not only inconvenient to operate, but also easy to cause damage to the equipment

Method used

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  • Combined determination method and device for seabed bottom-supported measurement equipment bottoming process
  • Combined determination method and device for seabed bottom-supported measurement equipment bottoming process

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Embodiment

[0032] Utilizing the method of the present invention, during the process of transferring the bottom-mounted measuring equipment from the deck to the seawater, along with the tension of the investigation ship steel cable, the hoisting mechanism 2 is lifted, and the relative position of the magnetic part of the magnetic trigger switch 3 and the switch element change, so that different level signals are successively output, and the detection control circuit 5 judges whether the bottom-sitting measuring device 1 is in the bottoming state or the non-bottoming state based on this.

[0033] In this embodiment, when the bottom-sitting measuring device 1 is parked on the deck, the magnetic component of the magnetic trigger switch 3 is within the sensing range of the switch element, and outputs a high-level signal to the detection control circuit 5; When the bottom-type measuring device 1 is hoisted, the magnetic component of the magnetic trigger switch 3 is far away from the sensing ran...

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Abstract

The invention provides a combined determination method for a seabed bottom-supported measurement equipment bottoming process. The combined determination method comprises the steps that: an underwatermagnetic trigger switch and an acoustic velocity measuring device are arranged on bottom-supported measurement equipment, whether the equipment is supported at the bottom is determined by means of relative position changes of a magnetic part and a switching element of the magnetic trigger switch; whether the equipment is in the air or water is determined by means of the acoustic velocity measuringdevice based on the big difference of acoustic velocity in the air and water; and by means of two outputs (bottoming and non-bottoming signals) of the magnetic trigger switch and two outputs (air velocity and water velocity) of the sound velocity measuring device, four states, namely, a deck parking state, a deck hoisting state, a underwater hoisting state and a seabed bottoming state, of the equipment from a research vessel deck to the seabed are distinguished. The combined determination method is simple in principle, high in operability and easy to implement, can fully utilize the technologies in the prior art, such as the magnetic trigger switch, a miniature CTD or a miniature SVP (for acoustic velocity measurement), greatly improves the reliability and avoids misoperation.

Description

[0001] This application is a divisional application of 2015109628186 "A Combined Judgment Method and Device for the Bottom-out Process of Submarine Bottom-Sitting Measurement Equipment", and the filing date is December 17, 2015. technical field [0002] The invention belongs to the general technical field of marine surveying, and in particular relates to a combined discrimination method for the bottoming process of a bottom-sealing measuring device. Background technique [0003] In-situ measurement of seabed is an important trend in the development of oceanographic measurement technology. Many in-situ measurement devices use the bottoming method for automatic underwater measurement, and it is necessary to control the start of the underwater measurement operation by judging the bottoming process of the equipment. At present, various types of underwater trigger switches developed in China can be used for bottoming judgment, such as patent 201420466785.7 (a deep-water non-conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/08
CPCG01V3/08Y02A90/30
Inventor 李官保梁军汀刘敬喜韩国忠祁国梁刘保华阚光明卢杰季念迎吕斌
Owner THE FIRST INST OF OCEANOGRAPHY SOA
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