Automatic detection method for water level

Abstract

The invention relates to an automatic detection method for water level. The automatic detection method comprises the following steps: firstly, providing automatic detection equipment for the water level, wherein the detection equipment comprises a water level surveying rod, a high-definition camera, an image processor and a main controller; the water level surveying rod is vertically erected in water; the high-definition camera is used for shooting a part, above the water level, of the water level surveying rod, so an overwater staff image is obtained; the image processor is connected with the high-definition camera and is used for processing the overwater staff image, so the current water level is obtained; the main controller is connected with the image processor and is used for determining whether to alarm for the water level based on the current water level; secondly, using the equipment for detecting.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an automatic water level detection method. Background technique [0002] Water level is the elevation of the free water surface of rivers, lakes, reservoirs and oceans and the surface of groundwater relative to a certain datum. Usually, all kinds of water level measuring scales are set in the above waters, artificial timing observation, or self-recording water level gauges are set to draw continuous water level change curves, so as to obtain water level data at different times and locations. Water level is one of the important hydrological eigenvalues, and water level data is of great significance for hydrological forecasting, flood control and emergency rescue, and water conservancy engineering facilities. [0003] The electronic water level detection equipment in the prior art replaces the previous manual timing observation mode, or uses contact sensors represented by floats an...

AI Technical Summary

Problems solved by technology

[0003] The electronic water level detection equipment in the prior art replaces the previous manual timing observation mode, or uses contact sensors represented by floats and pressure groups for water level measurement, or uses non-contact sensors represented by ultrasonic waves, radars, and lasers. Sensors measure water level, but these measurement methods have certain disadvantages. The former has high mechanical failure rate, large nonlinear error, and impurities affect the measurement accuracy. The latter has high cost, is easily disturbed by the surrounding environment, and has low versatility.

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