3results about How to "Stable match" patented technology

The invention discloses a non-intrusive traffic identity association method and system based on serial number anchoring and bypass twinning. According to the method, when a zero-trust gateway forwards encrypted service traffic, zero modification of an original message is kept so as to maintain the hardware unloading function of a network card, and meanwhile, a shadow stream carrying identity information and a serial number anchoring interval is sent through an independent UDP channel. And the downstream detection equipment performs logic splicing and identity association on the asynchronously arriving service flow and shadow flow according to the serial number by using an annular buffer area and a bidirectional sliding window algorithm. According to the method, the problems of hardware acceleration failure and encrypted traffic processing caused by traditional intrusive marking are solved, and millisecond identity traceability and refined anomaly detection of the encrypted traffic are realized under the condition that the throughput loss is lower than 1%.

The application provides a control system and control method for eliminating step loss in the positioning movement of a selection valve. The number of photoelectric pulses is determined by combining a photoelectric sensor and a special encoding disc for physical alignment of the execution hole position of the selection valve. In the movement process of the actuator, the actual number of photoelectric pulses of the special encoding disc is obtained by the photoelectric sensor. When the actual number of photoelectric pulses is consistent with the theoretical number of photoelectric pulses, the corresponding number of steps of the hole position offset is started to be executed. Finally, the execution hole position of the selection valve stays at the correct position, so that the automatic elimination of step loss in the positioning movement of the selection valve is realized. Since the direct alignment of the special encoding disc and the photoelectric sensor is adopted, the process is simple and the cost is low. Through the setting of the pulse number parameter mode for the continuous movement of the encoding disc and the selection valve hole position after matching, the alignment is accurate.

This invention relates to a method for recovering and clustering optical stripes based on restricted region growing, belonging to the field of computer vision measurement technology. The method includes the following steps: Step 1: Obtaining stripe projection images of the object under test after segmentation of the region of interest (ROI) from two camera viewpoints; Step 2: Obtaining binary stripe images; Step 3: Extracting the stripe center lines from the binary stripe images through connected component analysis to obtain the seed point coordinates of each stripe; Step 4: Obtaining stripe point coordinate data; Step 5: Calculating the centroid coordinates of the stripes based on the stripe point coordinate data recovered in Step 4, and numbering the stripes in the left and right views; Step 6: Comparing the number of stripes in the left and right views. If they do not match, the radius of the region growing is increased, and Steps 4 and 5 are repeated until the number of stripes in the left and right views matches. This invention effectively addresses the problems of noise, breakage, and deformation in optical stripe images, avoiding the problem of mismatched multi-line laser stripes.