Hydrostatic leveling instrument for measuring liquid level based on image analysis, and measurement method

Abstract

The invention relates to a hydrostatic leveling instrument for measuring liquid level based on image analysis, and a measurement method. The hydrostatic leveling instrument comprises camera obscuras,a water pump cabinet, a water tank, a communicating pipe and a bracket; more than two camera obscuras are provided; a measuring cylinder, a diffused light screen and a camera are arranged in each camera obscura; each camera obscura is a breathable and non-transmitting tank body; the measuring cylinder is arranged to close to the inner wall of one side of the camera obscura, and the diffused lightscreen is vertically arranged between the measuring cylinder and the adjacent inner wall; the camera is arranged at the inner wall opposite to the diffused light screen; the bracket supports the communicating pipe, and the communicating pipe serially communicate the water pump cabinet and the water in the measuring cylinder in each camera obscura, and the water pump cabinet is connected with the water tank through the pipeline; the measurement method of the hydrostatic leveling instrument for measuring the liquid level based on the image analysis comprises the following steps: step one, placing equipment; step two, collecting images; step three, preprocessing the images; and step four, computing the image related information. The liquid level is measured by adopting the image analysis technology, the change of the water surface area specific value can be directly measured, the error caused by manual data reading and computation can be avoided, and more accurate sedimentation data can be obtained.

Description

technical field [0001] The invention provides a static level for measuring liquid levels based on image analysis, and belongs to the technical field of structure settlement measurement in civil engineering. Background technique [0002] Static leveling system is a precision instrument for measuring the relative settlement between two or more points. It is mainly used for monitoring the vertical displacement and inclination of large storage tanks, dams, nuclear power plants, high-rise buildings, foundation pits, tunnels, bridges, subways, etc. . When the traditional static level is in use, the containers of multiple static levels are connected by a liquid pipe, and the liquid level of each container is measured by a magnetic telescopic sensor. The position of the float of the sensor changes synchronously with the change of the liquid level. From this, the liquid level change of each measuring point can be measured. [0003] There are many types of static levels, including: ...

AI Technical Summary

Problems solved by technology

Among them, the process of data reading and conversion also leads to low accuracy of measurement results

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