11results about How to "Reduce positioning" patented technology

The application discloses a Φ-OTDR and MZ-Sagnac fusion system XPM crosstalk suppression method based on single-pulse period local symmetry pairing, and is suitable for a single-fiber composite sensing system which integrates a Φ-OTDR module and a MZ-Sagnac interference module in the same sensing optical fiber through a wavelength division multiplexing mode. The method of the application obtains a pulse trigger signal and an interference output signal of the Φ-OTDR, synchronously segments the interference output signal according to a pulse repetition period, determines a local time window and a center position of the local time window affected by XPM crosstalk in each single-pulse period, then performs a weighted pairing operation on equidistant sampling points on both sides of the center, obtains a local recovery signal and an XPM crosstalk estimation component, and corrects a contaminated signal by using the local recovery signal, so as to realize XPM crosstalk suppression, improve the phase demodulation precision, disturbance positioning ability and event identification reliability of the composite sensing system.

The application discloses a kind of based on ultraviolet gluing quasi-monolithic compact interferometer and its building method, it is related to optical element and high-precision laser ranging field, including: the collimator of optical fiber in Mach-Zehnder interferometer and glass mounting seat ultraviolet gluing connection constitute the bottom flat integrated collimator, and integrated collimator and the target position ultraviolet gluing connection of glass base in Mach-Zehnder interferometer;It also includes: for adjusting the position of depolarization beamsplitter and 45 degree mirror in Mach-Zehnder interferometer adjusting support;Adjusting support includes support device for supporting adjusting part, adjusting part includes: six-dimensional optical adjusting frame, it includes: upper layer board;Lower layer board, between upper layer board and lower layer board by multiple screw nails of circumferential surrounding screw connection;Rotary ring is arranged at the bottom of lower layer board;Metal cylindrical connecting rod is fixedly arranged at the bottom of rotary ring.The application can build high stability high-precision quasi-monolithic compact interferometer.

The invention relates to the technical field of photo film covering, and discloses an automatic photo picture film covering device which comprises a first fixing frame, a quick dismounting assembly, a connecting assembly, a film covering roller, a guiding assembly and a conveying assembly. The quick dismounting assembly comprises a fixing rod, a sliding block, a bidirectional lead screw, a forward and reverse motor, a connecting block and a limiting block; and a first groove is formed in the fixing rod, the connecting assembly comprises a lower film roller mounting base, an upper film roller mounting base and an inserting block, and a first limiting hole is formed in the inserting block. By arranging the quick dismounting assembly, the connecting assembly and other structures, when a new film roll or film rolls with different visual effects need to be replaced, the film roll can be quickly replaced, an operator does not need to find a tool or dismount multiple sets of bolt structures with the help of the tool in the process, the non-value-added time in the production process is shortened in the process, and the production efficiency is improved. Furthermore, the film laminating efficiency is improved, and the mounting coaxiality and stability of the film laminating roller can be ensured.

This utility model discloses a micro / nano bubble generator for wastewater treatment, relating to the field of water pollution control technology. It includes a housing, a pull rod, and a ceramic perforated plate. The pull rod is disposed on the side of the housing, and a groove is formed in the side wall of the housing. A square block is disposed in the groove. In this utility model, the insertion holes on both sides of the ceramic perforated plate are adapted to the extended ends of the square blocks. The insertion rod is inserted into the insertion holes for initial fixation. A tension spring between the housing and the square blocks provides elastic tension. An elliptical elastic ring, in conjunction with a reset component, forms a buffer. When there is gas-liquid impact or pressure fluctuation, the tension spring extends and retracts to buffer, the elastic ring retracts and resets, and the insertion rod slides to maintain a stable connection between the ceramic perforated plate and the housing, ensuring the normal generation of micro / nano bubbles. The above structure enhances the connection stability between the internal components and the housing, resists impact and pressure fluctuations, and reduces component displacement, vibration, or loosening.

This application discloses a method, apparatus, equipment, and medium for industrial drawing recognition and error correction, relating to the field of drawing recognition technology. The method includes: acquiring and preprocessing industrial drawings; performing recognition and extraction based on the drawing data to generate a structured candidate set; calculating the alignment between the recognition coordinates and the coordinates of the drawing tool object based on anchor point features to obtain alignment parameters, errors, and confidence levels; performing quality verification based on the confidence level and errors to obtain compliant alignment parameters; mapping the structured candidate set to coordinates based on the compliant alignment parameters to obtain the positioning target; controlling the drawing tool to perform positioning and measurement to generate deterministic evidence objects; constructing a binding relationship graph and performing consistency constraint detection; executing a minimum-cost action sequence when errors occur to complete closed-loop error correction; and encapsulating the results to obtain structured results, evidence chains, and replayable data. This method can achieve highly reliable closed-loop error correction of drawing recognition results.

The utility model discloses a landfill cover plate hoisting device, which belongs to the technical field of landfill equipment in the environmental protection industry and comprises a supporting mechanism and a hoisting mechanism, and the hoisting mechanism is rotatably arranged on the supporting mechanism and has a first direction and a second direction. The driving source is used for being detachably connected with the cover plate; the cover plate is provided with a first position and a second position relative to the supporting mechanism, the cover plate of the hoisting mechanism in the first direction is located at the first position, and the cover plate is flush with the supporting mechanism; and the hoisting mechanism located in the first direction rotates to the second direction, the driving source drives the cover plate to rotate from the first position to the second position, and the cover plate is aligned to and covers a landfill unit of a landfill site. Through cooperation of the supporting mechanism and the hoisting mechanism and precise control of the position of the cover plate by the driving source, the defect that the angle of the cover plate is manually adjusted in the prior art is overcome.

The application discloses an electromagnetic point reading pen positioning method based on image recognition, and comprises the following steps: S1, collecting a textbook page image, combining an improved SuperPoint model and a time sequence processing unit to complete feature extraction, alignment, difference calculation and learnable parameter optimization of a key point set and a descriptor vector; S2, generating a layout template; S3, extracting and screening the key point set to generate current frame feature data containing two-dimensional coordinates, confidence and a normalized descriptor; S4, generating visual registration parameters; S5, combining the visual registration result to compare and update initial electromagnetic prior registration parameters, and outputting effective registration parameters of a current operation cycle; and S6, generating a positioning coordinate sequence and updating visual registration prior parameters. The application can realize high-precision and low-drift page positioning under different paper materials, illumination conditions and long-time use conditions, and is suitable for intelligent point reading, interactive teaching and high-precision paper surface interaction scenes.

The utility model discloses an assembling device of an electronic product production line, which comprises a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly is provided with a first positioning part, and the first positioning part is used for positioning a glass piece provided with a flat cable; and the first manipulator is provided with a tail end execution part, the tail end execution part is used for positioning the protective cover, and the first manipulator is used for moving the protective cover to the connecting flat cable. According to the utility model, the protective cover is transferred by using the first manipulator, so that the manual operation is reduced, the error is reduced, the fixing precision is improved, the condition of poor assembly is improved, the positioning and fixing time of a flat cable and the protective cover is reduced, the production efficiency is improved, and the cost is reduced.

This invention discloses a data prefetching method, product, device, and medium based on multiple memory access patterns, relating to the field of computer architecture technology. The method includes: monitoring for L2 cache memory access miss events in the processor; if the miss status register hits the event, splitting the miss address to obtain the base address of the spatial region and the offset address within the region. When the program counter pattern training table hits the base address, stride and spatiotemporal pattern training is performed on the offset address to obtain a fixed stride, space / time related access pattern. Valid memory access patterns are filtered by confidence level and stored in the corresponding LLC pattern table, with an index recorded in the prefetch pattern record table. Subsequently, based on the memory access miss event and index information, the target pattern is read from the corresponding pattern table to calculate the prefetch address, generate a request, and execute the prefetch. Through this scheme, it is possible to adapt to multiple scenarios and accurately identify memory access patterns for more precise data prefetching.

The application belongs to the technical field of steel structure construction application, and particularly relates to a building energy-dissipation buckling restrained brace installation device and an implementation method thereof. The setting of the walking wheels facilitates the movement of the whole device, the setting of the lifting structure not only saves the occupied space, but also facilitates the construction of steel structures with different heights, and the setting of the beam flange clamp realizes accurate positioning, so that the building energy-dissipation buckling restrained brace installation device provided by the application has the following advantages compared with the prior art: 1. firm connection, high degree of mechanization and good safety; 2. fast construction speed, saved construction period and cost; 3. simple equipment use, convenient operation, saved labor cost compared with the traditional mode; 4. accurate positioning, compared with the traditional mode, the device can be directly welded after being lifted without position correction; 5. small equipment occupied space, which does not affect the surrounding construction.

This invention discloses an AI-based traffic anomaly event recognition method based on a high-altitude perspective of unmanned aerial vehicles (UAVs), specifically in the field of traffic management. It addresses the challenge of identifying anomalies caused by parallax distortion in high-speed cruising scenarios by optimizing parallax distortion through continuous frame motion intensity baseline-driven flight control and zoom coordination; stabilizing target contours using a dynamic imaging window; constructing a sparse confidence kernel to analyze multi-dimensional motion; adaptively filtering low-quality candidates and refining anomaly coordinates; dynamically adjusting flight attitude and framing parameters according to the weight of anomaly-dense areas to achieve both high-altitude wide-angle coverage and fine-grained single-vehicle monitoring; eliminating parallax artifacts through confidence analysis; generating coordinates after anomaly candidate verification and driving flight control fine-tuning; and collaboratively compressing sensor bandwidth and improving alarm confidence across processing links to shorten the decision chain latency of detection, location, and tracking. This ensures coordinate accuracy and timely delivery under complex lighting and severe parallax conditions, providing reliable intelligent perception capabilities for traffic management.