A device and method for detecting water body turbidity based on underwater observation network

Abstract

The invention discloses an underwater observation network-based water turbidity detection device and a method thereof. The device comprises a calibrating subsystem, a light source subsystem, an image acquisition subsystem and an image processing subsystem, wherein the calibrating subsystem is used for calibrating the turbidity and fitting a relation expression between the turbidity T and the RGB value of a shot image; the light source subsystem is used for generating monochromatic lights, controlling the on-off of a monochromatic LED light source and controlling a wiper to regularly clean the external surface of a light source eyeglass; the image acquisition subsystem is used for acquiring the water image and controlling the wiper to regularly clean the external surface of the light source eyeglass; and the image processing subsystem is used for processing the information of the image shot by a CCD camera and calculating the turbidity according to the fitted relation expression obtained by the calibrating subsystem. The method can realize simultaneous online real-time detection of the water turbidity of a plurality of nodes of an underwater observation network, and realizes automatic and intelligent detection of the water turbidity.

Description

technical field [0001] The invention designs a water body turbidity detection device and method based on an underwater observation network, belonging to the field of underwater observation networks. Background technique [0002] The traditional water quality research methods can only observe the lake from the ground or the water surface by boat. With the development of satellite remote sensing technology, the water body can also be observed from the air, but these methods can only get sporadic data on the water body surface. The underwater observation network is composed of cables laid on the bottom of the water, an optical fiber network, and various instruments and equipment on the network. It overcomes the problems of equipment power supply and communication, and can realize continuous three-dimensional observation of water bodies. [0003] The CCD image sensor was invented in the 1870s, which can convert optical images into digital signals. After decades of development, t...

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Problems solved by technology

[0002] Traditional water quality research methods can only observe lakes from the ground or from the water surface by boat. With the development of satellite remote sensing technology, water bodies can also be observed from the air, but these methods can only obtain sporadic data on the water body surface.

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