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2 results about "Reef" patented technology

A reef is a bar of rock, sand, coral or similar material, lying beneath the surface of water. Many reefs result from natural, abiotic processes—deposition of sand, wave erosion planing down rock outcrops, etc.—but the best known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and coralline algae.

Variable-draft light amphibious vehicle and boat equipment

ActiveCN114313132AAvoid bottoming out accidentsReduce resistanceWatercraft hull designPropulsion power plantsPropellerLandform
The invention discloses variable-draft light amphibious vehicle and boat equipment which comprises a boat body and further comprises a water depth sensor arranged at the head of the boat body, an air bag arranged at the bottom of the boat body and a controller. The water depth sensor is in signal connection with the controller; the controller judges the draught degree of the ship body according to the water depth value detected by the water depth sensor and controls starting of the air bag based on the draught degree. The bottom of the ship body is further provided with wheels for the ship body to travel on land. Through the detection function of the water depth sensor, intelligent control over different states of the air bag can be achieved, the waterline of the equipment can be changed, complex underwater landforms can be better dealt with, shallow reef island landing is completed, and the equipment is high in applicability, easy to operate and good in economical efficiency; the problems that traditional island climbing equipment cannot adapt to complex underwater landforms, the transportation efficiency is low, the economical efficiency is poor, the ship body and propellers are greatly damaged by the beach-flushing island climbing mode and the like are fully solved, and wide application prospects are achieved.
Owner:JIANGSU UNIV OF SCI & TECH

Sea island reef remote sensing image geological classification method based on Deeplabv3 + network model

PendingCN114743103AEasy to distinguishImprove classification accuracyClimate change adaptationCharacter and pattern recognitionData setNetwork model
The invention relates to a sea island remote sensing image geological classification method based on a Deeplabv3 + network model, and the method is technically characterized in that the method comprises the steps: obtaining an original remote sensing image of a coral island, and carrying out the data preprocessing of the original remote sensing image; establishing a geological classification system of the coral reefs, and performing feature extraction and classification on the preprocessed remote sensing images to obtain a geological classification data set of the coral reefs; training the Deeplabv3 + convolutional neural network and the ResNet residual network model by using the geological classification data set of the coral island reef to obtain a trained identification and classification model; and performing prediction by using the trained identification and classification model to obtain a sea island reef remote sensing geological classification result map. The method is reasonable in design, is used for high-resolution remote sensing image classification of ocean coral reefs, has relatively high classification precision, can better distinguish details among different ground features, has the overall classification precision and the Kappa coefficient of 97.57% and 0.9643, and can be widely applied to remote sensing geological classification of sea reefs.
Owner:THE CHINESE PEOPLES LIBERATION ARMY 92859 TROOPS
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