Machine vision-based static leveling instrument with inclination measuring function and measuring method thereof

Abstract

The invention discloses a machine vision-based static leveling instrument with an inclination measuring function and a measuring method thereof. The instrument comprises a liquid storage tank with a transparent funnel part, an industrial camera, a laser ray, an annular lamp and a diffusion plate, wherein the industrial camera is positioned right above the center of the top of the liquid storage tank, a lens of the industrial camera vertically faces the axial center of the liquid storage tank downwards, the laser ray is positioned right below the center of the bottom of the liquid storage tank, and a ray spot of the laser ray is aligned to the center of the top of the liquid storage tank; the instrument further comprises an image transmission power supply unit which is used for receiving the image acquired by the industrial camera and outputting the image to an image processing system, and the image processing system which is used for analyzing and processing the acquired image to obtain the real height and inclination angle of the liquid level; top scales which are located on the top of the liquid storage tank and used for calibrating the deviation position of the laser point, and side wall scales which are located on the side wall of the liquid storage tank and used for calibrating the peripheral height of the liquid level are arranged on the funnel part of the liquid storage tank. The real height of the liquid level can be automatically and accurately recognized, the inclination angle is monitored, and the requirements for high precision, low cost and real-time monitoring and rechecking are met.

Description

technical field [0001] The invention relates to a static level, in particular to a machine vision-based static level with an inclinometer function and a measuring method thereof. Background technique [0002] The static level uses the principle of the connecting device. When in use, multiple containers placed on the measuring points are connected to the water storage tank in turn with connecting pipes to keep the liquid level of the water storage tank unchanged. When uneven settlement occurs at each measuring point, the elevation position of the container changes, but the communication liquid in each container is always kept at the same level, so by observing the relative position of the liquid level and the scale on the side wall of the container, the settlement change of each measuring point can be measured. The static level is a high-precision liquid level measurement system, which is suitable for measuring the relative settlement of multiple points, and is widely used in...

AI Technical Summary

Problems solved by technology

[0003] Traditional static leveling adopts manual reading method, which has a large workload and cannot realize real-time data collection

At present, most of the intelligent static levels on the market use magnetostrictive sensors for automatic data collection, which is expensive and cannot be manually verified and calibrated remotely.

Images