Automatic and remote reservoir level measuring device and method based on one-dimensional vision

Abstract

The invention discloses an automatic and remote reservoir level measuring device and method based on one-dimensional vision. The measuring device comprises a water level ruler and a water level detecting device, wherein the water level ruler is arranged in a reservoir, the water level detecting device is arranged on a reservoir dam and used for acquiring reservoir level data, the water level ruler comprises a ruler with scales, the ruler is arranged on a base and is provided with a buoy vertically moving along the ruler with water level lifting, and the side face, facing the water level detecting device, of the buoy is provided with a light-reflecting strip. The water level ruler is shot through a camera to obtain a one-dimensional image, accordingly the longitudinal position of the image zone where the image is located is obtained, namely the water level can be accurately measured. The whole system is managed by adopting a low-power-consumption single chip microcomputer, power consumption is greatly reduced, power is supplied by adopting a solar cell, installation is convenient, the water level detecting device is sealed in a housing, and a baffle plate is opened by controlling a through hole switching mechanism to perform image pickup.

Description

technical field [0001] The invention relates to a water level monitoring device, in particular to an automatic remote measurement device and method for reservoir water level based on one-dimensional vision. Background technique [0002] Reservoir water level measurement is the focus of the hydrology and water conservancy department. When severe weather occurs, if the accurate and effective water level monitoring is not carried out in time, the water level will exceed the warning line, which will cause serious waterlogging disasters. The water level sensor is one of the liquid level sensors. Water security and water resource development and management urgently require various water level sensors. At present, water level sensors at home and abroad: [0003] (1) Float type water level sensor: The working principle of this sensor is mainly to use the buoyancy characteristics of water. Since this type of sensor uses a float to float on the water surface, its application in wi...

AI Technical Summary

Problems solved by technology

[0011] There are various defects in the above-mentioned water level detection systems: (1) high hardware cost is required; (2) the software algorithm is complex, and algorithms such as complex neural networks based on training samples need to be used in the software algorithm; (3) the recognition number "1 , 2...,9" are more difficult, and it is easier to identify the "E" symbol, but when the water level is in the middle of the two "E", there will be a large error, because the plane line and water level of the water level are photographed under certain light conditions. The white color between the scales "E" is similar; (5) It is greatly affected by the environment, even with a scale with luminous light, the shooting effect at night is not ideal because of the cross-interference of many reflective lights; (6) It is difficult to commercialize

Because of this, vision-based water level monitoring devices are not yet widely available

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