9results about How to "Meet testing requirements" patented technology

The invention discloses a novel power system false data injection attack detection method based on CPO-CNN-SE. The method comprises the following steps: preprocessing a measurement test of a novel power system; performing hyper-parameter optimization by using a crown porcupine optimization algorithm (CPO) to improve the precision of the CNN detection model; meanwhile, in consideration of synchronous increase of the FDIA detection speed, a compression excitation (SE) attention mechanism is introduced, a CNN-SE mixed learning model is formed, and the characterization efficiency of the CNN on FDIA spatial features is enhanced; and finally, carrying out binary classification on the FDIA feature data through a full connection layer, a sigmoid classifier and a binary cross entropy loss function. According to the invention, the FDIA detection precision is improved, and the synchronous improvement of the detection speed is realized.

This invention provides a method for identifying the authenticity of wheat flour based on the fusion of Raman and near-infrared spectroscopy, belonging to the field of wheat flour authenticity identification technology. The method includes: acquiring Raman and near-infrared spectral data of the wheat flour sample to be tested, and preprocessing them separately; constructing and training a fusion detection model, which includes a data-level fusion module, a feature-level fusion module, and a decision-level fusion module; the data-level fusion module generates full-spectrum fusion data; the feature-level fusion module concatenates core features into a comprehensive feature set; the decision-level fusion module inputs the comprehensive feature set into a hybrid model; and the trained fusion detection model processes the comprehensive feature set to output the authenticity identification result of the wheat flour sample to be tested. This invention, through a three-level spectral fusion architecture and a dynamic adaptive adversarial mechanism, can effectively achieve high-precision and high-robust identification of wheat flour authenticity.

The utility model relates to an illumination system combining visible light and adjustable line laser. The illumination system comprises a visible light Kohler illumination system and an adjustable line laser illumination system. The visible light Kohler illumination system sequentially comprises an LED light source, a collecting lens group A, an achromatic lens group B and a dichroscope F along an optical axis from a light source to an image plane and provides stable and uniform visible light illumination, and the adjustable line laser illumination system sequentially comprises a laser, a collimating lens group C, a Powell prism D, a zoom lens group E and the dichroscope F along the optical axis from the light source to the image plane. The adjustable linear laser illumination system is used for providing uniform linear laser illumination with adjustable light spot size, and the dichroscope F is arranged at the light path intersection of the visible light Kohler illumination system and the adjustable linear laser illumination system, so that visible light and laser are finally imaged at the same position; therefore, an illumination light path capable of freely switching visible light illumination and line laser illumination in different wave bands is provided, and detection requirements can be met by using corresponding illumination modes according to different characteristics of a detected product.

This utility model discloses an automatic testing device for UV curing lamp holder circuit boards, including a testing board and a switching power supply. The testing board is equipped with a CAN communication bus that is electrically connected to and exchanges data with the lamp holder circuit board. The testing board is connected to and controls an air intake fan, UV lamp beads, and a resistance switching output module. The switching power supply provides DC power to the testing board and the lamp holder circuit board. This utility model provides test conditions and acquires test data for the lamp holder circuit board through the air intake fan, UV lamp beads, and resistance switching output module, thus eliminating the need to assemble the lamp holder circuit board into a lamp holder for actual testing, thereby improving the efficiency of lamp holder circuit board testing.

This utility model belongs to the technical field of soil testing, specifically relating to a layered sieving tool for soil pest detection. It includes a base plate, with a motor fixedly mounted on the upper end of the base plate. The motor's output shaft is fixedly connected to a rotating rod. This utility model, through the cooperation of the motor, rotating rod, circular turntable, T-shaped push-pull plate, concave plate, sliding support rod, fixed frame, mounting components, and mounting blocks, can drive two sieving frames to sway left and right. At this time, under the action of the sieving meshes at the bottom of both sieving frames, a layered sieving process is achieved, ensuring that the sieved soil meets the requirements for soil testing. The cooperation between the electric telescopic rod, fixed seat, support rod, and connecting plate drives several inserted rods to move out from the corresponding insertion holes inside the mounting blocks, allowing the sieving frames to be easily removed from the device after use.

This utility model relates to an automatic belt tensioning device for automotive engine testing, belonging to the field of engine testing technology. It includes a water pump drive pulley, a crankshaft pulley, and a belt, as well as a transmission device. The transmission device consists of a transmission mechanism and a mounting frame. The mounting frame includes an adapter plate, a base plate, and a side plate. The transmission mechanism includes a tensioner, a guide wheel, and a guide wheel assembly. A perforated platform extends from the top of the tensioner. The guide wheel assembly is mounted on the guide wheel and fixed to the tensioner via the perforated platform. The tensioner is mounted on the base plate to form the transmission device. One side is fixed to the engine block via hexagonal flange bolts through connecting holes on the adapter plate, and the other side is fixed to the lower end of the engine water pump via double-ended bolts through connecting holes on the side plate. After the belt wraps around the water pump drive pulley, crankshaft pulley, and guide wheel, an automatic belt tensioning device is formed, simulating the engine's operating state during vehicle driving to ensure testing and improve testing efficiency.

The utility model relates to the technical field of sponge testing devices, and discloses a polyurethane sponge testing device which comprises a fixing table, the right side of the top of the fixing table is fixedly connected with a second fixing plate, the rear side of the top of the second fixing plate is fixedly connected with a second supporting shaft, and the bottom of the front side of the outer wall of the second supporting shaft is fixedly connected with a second observation ruler. A supporting plate is fixedly connected to the top of the second supporting shaft, a second telescopic rod is arranged on the front side of the outer wall of the supporting plate, a test box is fixedly connected to the portion, close to the middle, of the outer wall of the second supporting shaft, a placement plate is slidably connected to the bottom of the inner wall of the test box, and sliding shafts are fixedly connected to the left side and the right side of the bottom of the placement plate; according to the utility model, the right side of the top of the fixing table is fixedly connected with the second fixing plate, and the rear side of the top of the second fixing plate is fixedly provided with the second supporting shaft, so that whether the tested sponge is qualified or not is judged, and the simplified operation of the test is satisfied.

The utility model relates to a transformer sealing ring elastic performance detection simulation device, which comprises a detection box body, the upper end of the detection box body is provided with an opening and is sealed through a sealing cover plate, each side plate of the detection box body is provided with a sealing ring pressing assembly, and each sealing ring pressing assembly comprises a pressing flange and a detection blind plate. Wherein the detection blind plate is arranged on a corresponding side plate of the detection box body, a through hole is formed in the middle of the detection blind plate and communicated with the interior of the detection box body, a sealing ring groove is formed in the detection blind plate around the through hole in the middle, and after a sealing ring to be detected is arranged in the sealing ring groove, the pressing flange is fixedly arranged on the detection blind plate; the diameters of the sealing ring grooves in the detection blind plates of the side plates are different, and the sealing cover plate is provided with a vacuumizing opening which is plugged by a plug. According to the utility model, the vacuum state of the transformer oil tank can be simulated, and the compression simulation state of sealing rings with various sizes and specifications when the sealing rings are installed on the oil tank can be realized at one time.

The application discloses a multi-axis linkage friction and wear testing machine for micro-textured surfaces and belongs to the technical field of friction and wear measurement, comprising a two-dimensional motion platform, a clamp assembly, a pair of grinding ball assemblies, an optical observation assembly and a horizontal workbench; the two-dimensional motion platform and linear guides are fixedly installed on the horizontal workbench. The two-dimensional motion platform is used in cooperation with a multi-axis motion control card and a numerical control interpolation algorithm to adjust the direction of micro-texture relative to reciprocating friction and wear motion in situ, so that the accurate characterization requirements of friction and wear performance of different micro-textured surfaces can be met; the optical observation assembly can be used to accurately adjust the detection position of an optical microscope for focusing, so that the detection of the wear morphology of the micro-textured surface is better achieved. The testing machine can be used for the friction and wear performance detection of micro-textured surfaces with different morphology characteristics, has perfect functions, is compact in structure and is low in production and maintenance costs.