A measurement and control system and monitoring and control method for a vibratory dredger

Abstract

The invention discloses a measurement and control system of a vibratory bottom sampler, and belongs to the field of vibration test and control technologies and underwater sediment collection. The measurement and control system of the vibratory bottom sampler comprises an instrument underwater penetration measurement unit, a sediment inherent frequency recognition unit, a vibrator vibration frequency adjustment unit and an upper machine. The instrument underwater penetration measurement unit is used for detecting underwater penetration; the sediment inherent frequency recognition unit is used for measuring inherent frequencies of different sediments and adjusting working frequency of a vibrator accordingly; the vibrator vibration frequency adjustment unit is used for starting, stopping and adjusting the vibrator; the upper computer comprises an underwater penetration display module, a sediment inherent frequency recognition module, a vibrator frequency adjusting module, a sampling information recording module, a serial port communication module and other modules. The measurement and control system has the advantages of capabilities of monitoring sediment collection processes, measuring inherent frequencies of the sediments and adjusting vibration frequency of the vibrator, and is applicable to the vibratory bottom sampler with the vibrator as a core.

Description

technical field [0001] The invention belongs to the fields of vibration test and control technology and underwater sediment collection, and relates to a measurement and control device and a measurement and control method for a vibratory mud extractor. Background technique [0002] Bottom sediment is an important part of the water body and has a significant impact on the water environment. Underwater sediments are generally formed after years of precipitation and accumulation. Due to the influence of different sedimentary characteristics and pollution sources, the composition and concentration of underwater sediments are inconsistent in depth. It has obvious bedding structure characteristics, which is manifested as stratification. . Therefore, there is a need for a set of sampling equipment that can obtain multi-layered sediment samples when collecting samples. [0003] At present, the commonly used sediment sampling equipment is mainly grab dredger and gravity dredger. Th...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies in the prior art, the present invention provides a measurement and control system of a vibratory dredger, which is used for monitoring and controlling the vibratory dredger, and is suitable for collecting sediments in reservoirs, rivers, lakes and other places; it can Solve the problems of low sampling efficiency of the current dredger and unmonitorable and controllable sampling process, etc. It has the functions of online measurement of natural frequency of sediment, adjustment of vibration frequency of vibrator, real-time monitoring of sampling process, etc.

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