Lake bed basin rapid positioning and sludge distribution and thickness rapid determination method

Abstract

The invention relates to the technical field of target determination, and discloses a lake bed basin rapid positioning and sludge distribution and thickness rapid determination method comprising the following steps: enabling a monitoring early warning ship carrying a double-frequency depth finder and a side scan sonar to cruise in a target area, enabling the side scan sonar and the double-frequency depth finder to send sound waves to the surroundings, enhancing the sound wave by using an interference suppression algorithm; positioning a lake bed basin in the target area by using a cross positioning algorithm combining a double-frequency depth finder and a side-scan sonar; identifying a sludge sub-graph around the lake bed basin by using a side-scan sonar, and detecting the sludge sub-graph by using a closed-loop detection algorithm; measuring the depth of a lake bed and the thickness of sludge in a sludge distribution area by using a sludge feeler lever; and performing rapid mapping on the data of the double-frequency depth finder by using surfer, and generating a mapping graph of a patrol result on a real geographic position. The invention also provides a lake bed basin rapid positioning and sludge distribution and thickness rapid determination system. According to the invention, rapid positioning measurement of the lake basin is realized.

Description

technical field [0001] The invention relates to the technical field of target measurement, in particular to a method and system for rapid positioning of lakebed basins and rapid determination of silt distribution and thickness. Background technique [0002] At present, some reservoirs carry out a variety of business activities for many years. There are many restaurants around the reservoirs, and fish cages are densely distributed on the water surface. Due to the lack of supporting rain and sewage diversion facilities, the waste water from the catering industry distributed around the reservoir directly enters the reservoir, polluting the water body in the reservoir; when fish in cages are fed with feed and chemicals, feces and secretions will dissolve and deposit. , bait dissolution deposits, while causing pollution to the water body, these dissolution deposits fall to the bottom of the silt reservoir, causing the water quality to decline year by year. [0003] Due to the lo...

AI Technical Summary

Problems solved by technology

Due to the lack of supporting rain and sewage diversion facilities, the waste water from the catering industry distributed around the reservoir directly enters the reservoir, polluting the water body in the reservoir; when fish in cages are fed with feed and chemicals, feces and secretions will dissolve and deposit. , bait leaching deposits, while causing pollution to the water body, these leaching deposits fall to the bottom of the silt reservoir, causing the water quality to decline year by year

[0003] Due to the long-term accumulation of inbound pollution, the sludge at the bottom of the lake has complex components, including organic pollutants, heavy metals and nutrients, which not only affect the water quality of the lake, but also have a negative impact on the surrounding environment of the lake and seriously damage the ecological environment.

In addition, reservoir siltation will cause a series of problems: it will lead to the loss of storage capacity, weaken the design function of the reservoir, and affect the normal benefit of the project; the burden of maintenance costs and hazards of reservoir siltation will continue to increase, which will accelerate the scrapping of the project; increase safety hazards, endanger engineering safety

[0004] The existing sonar-based lake bed basin positioning and silt distribution measurement algorithms need to establish multiple base stations. Due to the large number of stations in the multi-base, the amount of positioning information obtained is more, and there is also a large amount of redundant irrelevant information.

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