6results about How to "Overcoming reliability" patented technology

This invention belongs to the field of sensors and signal processing, specifically relating to a wavelet kernel-scale sensitivity-guided denoising method for abrasive particle induced voltage signals. The method includes: acquiring abrasive particle induced voltage signals and performing harmonic cancellation to obtain a preprocessed signal; constructing a wavelet kernel function and calculating a kernel-scale guided spectrum using it and the preprocessed signal; constructing a sparse joint denoising model based on the kernel-scale guided spectrum; processing the sparse joint denoising model to obtain a convex optimization objective function; solving the convex optimization objective function using an adaptive step-size gradient descent method and an adaptive iterative shrinking threshold method to obtain a weight vector characterizing the distribution of abrasive particle characteristic signals; binarizing the weight vector characterizing the distribution of abrasive particle characteristic signals to obtain a feature indicator vector; performing a Hadamard product between the feature indicator vector and the preprocessed signal, followed by low-pass filtering to obtain a denoised signal. This invention can adaptively and non-destructively enhance and denoise abrasive particle characteristic signals under strong interference environments.

A large-diameter tension-compression decoupling fusion type linear separation device is composed of a separation ring, an inner support protective cover, a detonator seat, an energy-gathering cutting cable assembly, a connecting fastener and a detonator, the protective cover is internally provided with the energy-gathering cutting cable, after the detonation energy is transmitted to the main charge of the cutting cable through the transmission assembly of the detonator, the shaped charge is driven by the detonation wave to form a metal jet to cut and separate the separation ring, the high-level load transmitted by the projectile body is tension-compression decoupled through the tolerance control of the separation ring and the inner support protective cover, and a large-diameter tension-compression decoupling fusion type linear separation device is given, which has the advantages of simple structure, reliable separation performance, high bearing capacity, large connection stiffness, light weight, convenient installation and the like.

The application relates to a high-strength weather-resistant gas shielded welding wire and a preparation method and application thereof, and belongs to the technical field of welding materials. The chemical composition of the welding wire comprises, in mass fraction, C: 0.06%-0.10%, Mn: 1.65%-2.00%, Si: 0.65%-0.80%, P: 0.03%-0.10%, S: <=0.015%, Cr: 0.55%-1.00%, Ni: 0.30%-0.80%, Cu: 0.30%-0.45%, Mo: 0.10%-0.25%, Ti: 0.03%-0.10% and base element Fe. The Si-Mn-P-Ni-Cr alloy system is adopted, the contents of alloy elements such as Cr and Ni are reasonably designed, the mechanical properties of deposited metal are ensured, the corrosion-resistant element P is added, and the component range of P is optimized and adjusted, so that the corrosion resistance of the deposited metal is obviously improved on the basis of maintaining good mechanical properties.

This invention relates to a method, apparatus, equipment, and medium for predicting deformation during the assembly of diesel engine connecting rods, belonging to the field of mechanical assembly technology. The method acquires multi-dimensional assembly data during the assembly process of marine diesel engine connecting rods. Based on assembly process knowledge, the multi-dimensional assembly data is weighted to obtain a weighted input vector set. A pre-trained Bayesian network model is used to infer the deformation prediction probability distribution from the weighted input vector set. Statistical analysis is performed on the deformation prediction probability distribution to obtain deformation trend characteristics and distribution dispersion characteristics. Key deformation risk factors are identified based on these characteristics. A diesel engine connecting rod assembly deformation prediction report is generated based on the deformation prediction probability distribution, deformation trend characteristics, distribution dispersion characteristics, and key deformation risk factors. This invention improves the assembly quality and product reliability of marine diesel engine connecting rods.

The present application relates to the technical field of automatic driving and unmanned driving, and particularly provides a vehicle positioning method, computer equipment, a server, a storage medium and a vehicle, aiming to solve the problem of reducing the real-time performance and reliability of positioning caused by too long loading time and large memory resource occupation. The method provided by the present application comprises loading a serialized file formed by serializing a data structure of a point cloud probability distribution map, the data structure being formed by encapsulating a voxel index of a point cloud map and normal distribution parameters of point clouds in the voxel; performing deserialization processing on the serialized file to obtain the data structure; and using a positioning method based on an NDT algorithm to perform point cloud registration on a laser radar point cloud frame collected by the vehicle according to the data structure, so as to determine the pose of the vehicle. Through the above method, the data loading time can be greatly reduced, and after the loading is completed, too much memory resource will not be occupied, and finally the real-time performance and reliability of vehicle positioning are improved.

The invention provides a method, device and equipment for on-load replacement of a drop-out fuse and a storage medium. The method comprises a short-distance bypass drainage wire, a puncture wire clamp for penetrating through a wire insulating layer and a current real-time detection device. The puncture wire clamp is fixedly arranged at the end part of the bypass drainage wire; the current real-time detection device is connected in series with the bypass drainage wire and is electrically connected with the puncture wire clamp through the bypass drainage wire; the integrated structure of the current real-time detection device and the puncture wire clamp forms a physical basis for connection quality verification. By adopting the integrated structure of the short-distance bypass drainage wire, the puncture wire clamp peeling-free lap joint and the current real-time detection device, the on-load replacement which does not need power failure, is simple and convenient to operate and is efficient and safe is realized, and the defects of low power supply reliability and complicated operation in the prior art are overcome.