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6results about How to "With anti-interference ability" patented technology

Supermolecular coated greenhouse film antifogging coating solution, preparation method and application thereof

The present application relates to the technical field of high molecular antifogging coating, and particularly relates to a supermolecular coated shed film antifogging coating solution, a preparation method and application thereof, wherein acrylic acid, acrylamidoalkyl sulfonic acid, hydroxyalkyl acrylate and double-ene crosslinking monomer are used for tetra-copolymerization to construct a supermolecular matrix with carboxyl, sulfonic acid group, hydroxyl side group and crosslinking network, and a spandex antifogging agent is introduced in situ in the matrix, hydrogen bond and hydrophobic association synergistic effect between the side group functional groups and the spandex molecules are used to realize supermolecular coating, and then pH adjustment and functional additive compounding are performed to obtain the coating solution. The present application solves the problems of easy migration and precipitation of the traditional antifogging agent, coating brittleness, short effective period, and the obtained coating has comprehensive performances of long-acting antifogging, high light transmission, strong adhesion, flexible and bending-resistant, water-resistant and aging-resistant, and room temperature rapid curing, and is suitable for antifogging treatment of various agricultural shed films and greenhouse transparent materials.
Owner:YUNNAN UNIV

A method for tracking a master AUV from an AUV based on sliding mode adaptive control

The application relates to a method for tracking a main AUV from an AUV based on a sliding mode adaptive control, which decouples the motion of the AUV into horizontal plane motion and longitudinal plane motion, simultaneously considers the influence of non-constant interference and sea current during the motion of the AUV, designs a control law through a sliding mode adaptive control method, and estimates the sea current velocity on line, so as to guide the AUV to the tail of a target AUV to perform distance tracking. Finally, through tracking simulation of linear motion and curve motion of the target AUV respectively, the feasibility of the AUV long-distance guiding and tracking method is verified. Through adaptive control, the influence of parameter error on the stability of the system is eliminated, the sliding mode adaptive control method can estimate the sea current velocity, the system has certain anti-interference ability, and the robustness of the system is also indicated.
Owner:NORTHWESTERN POLYTECHNICAL UNIV +1

High-stability coupling shielding box test tool

The utility model belongs to the technical field of shielding boxes, and particularly discloses a high-stability coupling shielding box test tool which comprises an outer box and a push plate, the push plate is movably connected to the lower portion of the interior of the outer box, rollers are movably connected to the four corners of the bottom of the push plate respectively, a cover plate is longitudinally fixed to the right side of the push plate, and the cover plate is fixed to the right side of the outer box. A sealing frame is fixed to the periphery of the outer portion of the cover plate, and inserting rods are fixed to the four corners of the left side of the sealing frame correspondingly. According to the high-stability coupling shielding box test tool, a positioning frame is fixed to the periphery of the right side of the exterior of an outer box, a push plate and a shielding box are driven by rollers to enter the outer box, a cover plate on the right side is attached to the surface of the outer box, after the cover plate is aligned with a sealing frame and the positioning frame, an insertion rod is inserted into a through groove, and then a first bolt is longitudinally screwed into a screw hole for reinforcement; interference signals are generated in cooperation with the signal generator and the controller to conduct an anti-shielding test, and the problem that the signals are prone to leakage is solved.
Owner:SHENZHEN SHENHUA CENTURY TECH CO LTD

A voice coil motor direct drive system robust anti-interference control method

ActiveCN116526928BLower selection limitImprove control
The application belongs to the technical field of electric-gas servo control, and discloses a control method for enhancing robust anti-interference of a voice coil motor direct drive system. S1, a dynamic equation, a model error and a state equation of the voice coil motor direct drive system are established; S2, the lumped interference is expanded into an additional state variable to update the state equation, a condition that an extended state anti-interference observer and an estimation error thereof satisfy is set on the basis of the updated state equation, and the estimation of the lumped interference is calculated by using the extended state anti-interference observer; S3, a tracking error and an auxiliary error signal are set, a controller for enhancing robust anti-interference is constructed, and a difference between the estimation of the lumped interference and the lumped error is compensated, so as to realize the control of the voice coil motor direct drive system. By the application, the selection limit of a robust gain parameter is reduced, and the control precision and the robustness of the system are ensured in the case that the system suffers from strong interference.
Owner:HUAZHONG UNIV OF SCI & TECH

A method, system, product, and medium for defect detection of precision components.

A method, system, product, and medium for defect detection of precision parts are disclosed, relating to the field of intelligent sensors. The aim is to address the difficulty in distinguishing between unstructured surface attachments and actual geometric damage in related 3D vision solutions. The method involves controlling a robotic arm to drive multi-source sensors to collaboratively acquire two-dimensional texture data and initial three-dimensional point cloud data, and automatically supplementing missing areas to generate complete three-dimensional point cloud data. Subsequently, two-dimensional feature vectors containing local texture information and three-dimensional feature vectors containing spatial geometric information are extracted and fused to generate a target fused feature vector possessing both texture and geometric attributes. Finally, the feature distance between this vector and a normal sample feature library is calculated as the deviation to determine the defect. This application utilizes semantic mutual verification of multimodal features to reduce the false alarm rate in complex scenarios, achieving high-precision and interference-resistant detection of subtle defects in precision parts.
Owner:POLYGON NANTONG PRECISION MOLD & PLASTIC CO LTD