7results about How to "Guaranteed unchanged" patented technology

The embodiment of the present disclosure provides a kind of high temperature gas cooled reactor main helium fan main bolt tensile measurement device and method, the head of the main bolt is provided with tensile measurement base block and the tensile measurement rod inserted in the tensile measurement base block, measurement device includes: measurement base, measurement base is provided with first installation hole and the measurement hole being communicated with the first installation hole, first installation hole is used to be connected with the tensile measurement base block;Intermediate measurement rod, the first end of intermediate measurement rod is movably inserted into the measurement hole and can be contacted with the tensile measurement rod;Fixed support, fixed support is fixed to the measurement base, fixed support is provided with second installation hole at the position corresponding to the measurement hole;Displacement measuring element, the first end of displacement measuring element passes through the second installation hole to the second end of the intermediate measurement rod abuts.This measurement device of the present disclosure is simple in structure, can reliably fix displacement measuring element, and installation is convenient, measurement is simple.

This utility model relates to the field of steel structure technology, specifically to a welding steel structure clamp, comprising a base, with clamps on both sides of the upper middle portion of the base, each clamp including a base plate, with a fixed clamping plate fixedly installed on one side of the upper part of each base plate, and a sliding groove formed in the middle of the upper part of each base plate, the sliding clamping plate being slidably engaged in the middle of the sliding groove, a hollow groove formed in the middle of one end of the base, a semi-circular worm gear fixedly installed on one side of the middle of the hollow groove, a semi-circular sliding groove formed in one side of the middle of one end of the base, a semi-circular sliding plate being slidably engaged in the middle of the semi-circular sliding groove, a fixed plate fixedly installed at the lower end of the semi-circular sliding plate, and a worm gear rotatably installed in the middle of one end of the fixed plate. This utility model solves the problem that traditional clamps are mostly fixed angles, such as right angles, and can only meet the needs of straight line or simple angle welding, such as flat welding and fillet welding, which have many shortcomings in practical use.

This invention discloses an engineering design assistance method based on multi-source data fusion, comprising the following steps: Step 1: Obtaining a fragment set; Step 2: Obtaining a conflict development map; Step 3: Converting the conflict development map into a structured input sequence and inputting it into an improved MaskFormer model, constructing a conflict potential field distribution through a cross-source conflict potential field reflection mechanism, and obtaining a conflict structural unit set; Step 4: Determining the adjudication seed; Step 5: Constructing a manifold topological tension field and performing selective freezing; Step 6: Fusion updating of geometric structural fragments to generate candidate design schemes; Step 7: Matching and verifying the candidate design schemes and performance region fragments to obtain an optimized design scheme; Step 8: Performing consistency screening by combining the optimized design scheme and design intent expression fragments, and outputting the engineering design assistance result. This invention combines the improved MaskFormer model with the manifold topological tension field to achieve efficient engineering design assistance.

This invention belongs to the field of target detection technology, specifically relating to a method, device, and medium for detecting unmanned aerial vehicles (UAVs) in infrared images based on complementary design. The method includes: S1, acquiring an infrared image to be detected; S2, inputting the infrared image into a pre-trained detection model to obtain the UAV category and location information in the infrared image; the detection model is an improvement on the YOLOv8 network, the improvement including: adding low-level feature detail enhancement modules to the first and second C2f layers of the backbone network; the low-level feature detail enhancement module involves: applying random perturbation to the feature map output by the C2f layer; reconstructing the spectrum based on the corresponding phase and amplitude, and restoring it to the spatial domain to obtain the feature map output by the low-level feature detail enhancement module. This invention solves the technical problem of existing target detection methods lacking modeling of infrared image characteristics.

The white-box encryption method based on neural network includes a confusion technique and a white-box AES encryption and decryption process, and the core steps of the AES scheme with a fixed key are summarized into multiple mapping tables, and the neural network is used to replace the encryption and decryption operation through overfitting training of the tables to achieve the confusion effect. The white-box AES encryption process is divided into two stages, the round key of AES each round is added with a byte substitution result, a random bijection is used for permutation to protect the key, and the combined mapping is confused by a neural network; secondly, the corresponding permutation recovery operation is introduced in the column confusion operation, and a randomly generated key byte is XORed after the finite field multiplication operation, and the above operation is replaced by a neural network. The decryption process is the same. The present application is highly combined with the neural network, and for the first time, the neural network is used to confuse part of the steps in the block encryption, and through the unexplainable nature of the neural network, a reliable black box environment is provided for part of the operation, and the present application has the advantages of good security, strong attack resistance and high expansibility.

The utility model discloses a filling machine for lubricating oil production relates to lubricating oil processing technical field. The utility model discloses a base and the casing of fixed connection at the top of base, the top of base is provided with a plurality of oil pipes, the base bottom is fixedly connected with a plurality of support columns, the casing inner wall is fixedly connected with the support plate no.

The utility model discloses a kind of adhesive tape precision cutting and winding integrated device, including bottom plate, the bottom plate upper end one side is fixedly arranged with side plate, the side plate upper end one side is movably arranged with guide cylinder by pivot, the side plate surface is provided with winding mechanism for winding adhesive tape in lower end, the winding mechanism includes sliding slot, sliding block, motor, winding shaft, winding cylinder, laser ranging device, the side plate surface one side is provided with sliding slot, the sliding slot inside is movably hinged and set with sliding block, the sliding block inside is fixedly set with motor, the sliding block surface is movably set with winding shaft by bearing, and the power output shaft end of motor and winding shaft are transmission connection between them.The utility model utilizes the mode of laser ranging, the diameter of winding device can be monitored in real time, so that the diameter of winding device can be accurately cut off after reaching predetermined length, so precise cutting effect can be achieved.