3results about How to "Good achievability" patented technology

The invention relates to a channel foreign matter image generation and channel foreign matter detection method based on a generative adversarial network, and the method comprises the steps: image collection: employing an unmanned plane for inspection, and collecting a channel image; image noise reduction: carrying out noise reduction processing on the acquired image by adopting a median filtering technology; model improvement: based on the GAN model, introducing an SE attention mechanism, and improving a loss function to obtain an improved GAN model; model training: training the improved GAN model through a training data set; image generation: generating a channel foreign matter image by using the trained foreign matter image generation model, and forming an extended sample set; foreign matter recognition: training a target detection network in combination with the original sample set and the extended sample set, and detecting and recognizing the channel foreign matter based on the trained target detection network; and foreign matter positioning: according to an identification result, based on a GIS system, determining a spatial position of a foreign matter. The method is beneficial to generating images similar to real channel foreign matter features, and the channel foreign matter detection precision is improved.

The application relates to a design method of an asymmetric tail nozzle under strong geometric constraints, and belongs to the technical field of engines. Compared with the prior art, the design method of the asymmetric tail nozzle under strong geometric constraints can meet the given strong geometric constraints by simplifying the lower wall surface of the nozzle into a straight line and controlling the initial expansion circular-arc segment matching outlet position constraints, and the designed nozzle length is short due to the adoption of the circular-arc initial expansion, so that the structure is beneficial to realization and has good realizability.