7results 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.

The present invention discloses a millimeter wave packaged antenna array in the field of antennas, including a bare chip pin structure, a printed circuit board, a waveguide transmission line structure and a rectangular horn antenna array, wherein the rectangular horn antenna array is located directly above the bare chip, and an extended transmission line connecting the bare chip pin structure and the waveguide transmission line structure is provided on the printed circuit board, wherein the extended transmission line includes a coplanar waveguide CPW transmission line segment, a substrate integrated waveguide SIW transmission line segment and a rectangular waveguide transmission interface. The antenna array adopts 2P2M packaging and plastic metallization processing technology to integrate the bare chip and the antenna in an integrated manner, with a short transmission path, thus achieving higher transmission efficiency and lower power consumption; the antenna adopts Z-shaped rectangular waveguide feeding, so that the antenna is located directly above the chip, reducing the area occupied by the antenna in the package; the antenna has stable matching and radiation performance, and the integrated design of the bare chip and the antenna provides convenience for applications such as millimeter wave vehicle-mounted radar.

The utility model discloses a magnetic type three-in-one connecting rod stable installation metal ring which is of a straight pipe structure, one end of the metal ring is open and is a three-in-one connecting rod extending hole, the other end of the metal ring is a screwdriver head extending hole, and the inner wall of the metal ring is provided with a first magnetic ring used for magnetically attracting a connecting rod, a second magnetic ring used for magnetically attracting a screwdriver head and a clamping ring used for tightly sleeving the screwdriver head. The screwdriver head is tightly sleeved through the clamping ring to be combined in the metal ring instead of being fixed in the metal ring through static friction force generated by tight contact with the inner wall of the metal ring, and large-area abrasion of the screwdriver head can be avoided. Meanwhile, the second magnetic ring is arranged in the metal ring to attract the screwdriver head, the screwdriver head can be inserted into the metal ring by means of the attraction force of the second magnetic ring, more labor is saved, the magnetic force of the screwdriver head can be enhanced through the second magnetic ring, the magnetic attraction force between the screwdriver head and the three-in-one connecting rod is enhanced, and the screwdriver head and the three-in-one connecting rod are matched more stably; and due to the arrangement of the first magnetic ring and the second magnetic ring, the three-in-one connecting rod cannot fall out of the metal ring when the metal ring is vertically placed.

The utility model discloses a table board type sitting posture corrector, which belongs to the technical field of sitting posture correctors, and comprises a table board part, one end surface of the table board part is provided with a mounting notch, and the side wall of the mounting notch extends towards the notch to form two clamping parts; the rotating part is connected with a sitting posture limiting part, the rotating part is embedded in the mounting notch, two clamping notches are formed in the two ends, facing the clamping parts, of the rotating part, and the two clamping parts are rotationally arranged in the two clamping notches respectively. According to the table board type sitting posture corrector, the table board part and the rotating part are arranged, the rotating part is turned over by means of the matching mode of the clamping part and the clamping notch, so that the sitting posture limiting part is driven to stand on the table board part or be contained below the table board part, and space occupied by the sitting posture corrector on a desk in the non-use state is reduced.

The utility model discloses a combined stator winding device which comprises a processing pedestal, a channel is arranged in the surface of the processing pedestal, a driving assembly is fixed in the channel, the top of the driving assembly is fixedly connected with a chassis, the top of the chassis is fixedly connected with a vertical rod, the outer ring of the vertical rod is movably sleeved with a stator, and the stator is fixedly connected with the chassis. A winding assembly is installed on the inner wall of the machining pedestal. The winding machine further comprises an installation assembly. And stabilizing the movable assembly. According to the utility model, the stator is driven to move downwards, the bottom of the stator is in contact with the chassis, then the stator is rotated, and the stator is mounted after the clamping groove in the stator is matched with the tip of the clamping block, so that the stator can rotate more stably without accurately aligning the limiting rod in the chassis with the limiting hole in the stator; and meanwhile, convex blocks fixedly connected with the inner walls of the two sides of the notch are attached to and slidably connected with the inner walls of sliding grooves reserved in the two side walls, close to the convex blocks, of the clamping block, and it is guaranteed that the clamping block moves more stably.