12results about How to "Accelerate Design Cycle" patented technology

The invention provides a digital-analog hybrid circuit design method, device and equipment and a storage medium, and the method comprises the steps: constructing a simulation auxiliary unit library for a simulation module needing to be used in a digital-analog hybrid circuit; in the RTL (Register Transfer Level) design stage, the digital standard cell library and the analog auxiliary cell library are called to carry out digital-analog hybrid circuit design, and a digital-analog hybrid circuit is obtained; automatically generating a layout of the digital-analog hybrid circuit through a digital back-end tool; and after physical verification and parasitic parameter extraction are carried out on the layout of the digital-analog hybrid circuit, post-simulation verification is carried out. Therefore, layout generation of the digital-analog hybrid circuit can be automatically completed, a schematic diagram and a layout of a top layer do not need to be completed manually, the design process is greatly simplified, and the design period is shortened. For a process migration scene, only a small number of simulation auxiliary units need to be redesigned, codes of other digital parts can be reused and rapidly modified, and the designed process migration efficiency is improved.

The invention provides a rapid structure design method based on a carbon fiber composite material database, which comprises the following steps: disassembling an imported composite material structure model into a basic joint structure and a basic connection structure through an image recognition technology, matching the basic joint structure and the basic connection structure with a composite material basic structure database to obtain composition information of the composite material structure model, the method comprises the following steps: manually inputting a user demand, calling a composite material layering performance library by a system, and matching material performance and a layering structure to a basic joint structure and a basic connection structure of a composite material structure model; and by taking the model structure composition information, the material performance and the layering structure parameters as input ends of machine learning, and taking the user demand as an index of machine learning, a composite material type and a layering structure which meet the user demand are optimized through a machine learning method. According to the method, image recognition, a database and machine learning are integrated, the design process can be simplified, and the design threshold is reduced.

The invention discloses a research and development system and method for a FAST carbon fiber double-prevention split bulletproof helmet, and aims at achieving efficient, high-quality and personalized helmet manufacturing, creating a three-dimensional model of the helmet through the CAD technology, finely designing an inner helmet, an outer helmet and a connecting structure of the inner helmet and the outer helmet, and conducting material pretreatment. An automatic laying machine is adopted to accurately control the fiber direction, and laying data are collected in real time through a sensor. X-ray tomography and machine vision technologies are introduced, nondestructive testing is carried out on internal defects, the defect rate Dr is predicted through machine learning, and the manufacturing process is optimized in combination with real-time feedback so as to reduce interlayer delamination. The protection performance of the helmet is verified through performance testing, the production bottleneck is recognized through generated data, and technological parameters are optimized. Performance indexes are set and adjusted based on user feedback, product quality and user experience are ensured, and intelligent management from design to production is achieved.

The present invention provides a method for optimizing the beam position design of a spaceborne SAR. Different from the previous idea of ​​using a fixed pulse width as input for all beam positions, the pulse width is designed and output for different beam positions; different from the problem that the previous design has no automatic iteration capability or the iteration method is simple, the automatic iteration function of the design is realized through a three-layer loop iteration step-by-step parameter adjustment method. Beneficial effects of the present invention: the pulse width is designed for different beam positions, instead of using a fixed and unique pulse width as input for all beam positions, which not only avoids the situation that some beam positions have harsh timing constraints due to excessively wide pulse widths, and thus the designable PRF range is too small or non-existent, but also avoids the situation that some beam positions have poor noise equivalent backscatter coefficients due to excessively narrow pulse widths, thus affecting the design results, effectively improving the flexibility of the design and the performance of the design results; at the same time, the design capability of the system is improved and the optimal design results are ensured.

The utility model relates to a chain type hoop device for pipe pile, including I -shaped chain link, buckle structure and locking structure, I -shaped chain link includes chain link A and chain link B, a plurality of chain link A and a plurality of chain link B staggered connection and common constitute long chain structure, buckle structure includes fastener A and fastener B, fastener A links with chain link A and fastener B links with chain link B, because fastener A and fastener B movable insertion, therefore chain link A and chain link B are linked through buckle structure activity, locking structure includes socket and plug, socket and plug are connected with the both end of long chain structure respectively, socket is provided with installation groove in, plug is equipped with spring in, after plug inserts installation groove, locks in installation groove through spring, the utility model reaches beneficial effect is: can lengthily adjust length and can realize good locking.

The present invention relates to the technical field of integrated circuit mask design, and in particular to a mask optimization method and storage medium. The mask optimization method of the present invention comprises the following steps: obtaining an initial chip design layout; obtaining a critical path graph of the initial chip design layout; interrupting the initial chip design layout; placing evaluation points on the interrupted design layout, and obtaining key evaluation points using the critical path graph and the evaluation point positions; and optimizing the mask by reducing the correction error of the key evaluation points. The present invention reduces the correction error of the critical path graph by reducing the correction error of the key evaluation points, so that the manufacturing error of the graph on the critical path is low and meets the circuit timing requirements, while for the graph on the non-critical path, part of its correction error can be sacrificed to ensure the chip yield. The present invention also provides a storage medium having the same beneficial effects as the above-mentioned mask optimization method.

The invention relates to the technical field of electronic control, in particular to a multifunctional control panel for jig testing equipment, which comprises a master control microcontroller unit, a control module, a control module and a control module, and is characterized in that the master control microcontroller unit is used for executing control logic and processing signals; the input and output interface unit is connected to the main control microcontroller unit and is used for processing an input signal and an output control signal of the jig, and the input and output interface unit comprises an optical coupling isolation device and a driving chip and is used for realizing signal isolation and driving; and the expansion communication interface unit supports an I2C or UART protocol, comprises a UART2 interface and a UART3 interface, and is used for connecting a plurality of peripheral expansion circuit boards or HMI screens. The number of input and output IO is freely expanded through an I2C or UART interface, the flexible test requirement is met, an external HMI screen can be directly connected, visual operation is achieved, dependence on computer peripherals is reduced, the cost performance and expansibility are improved, the research and development period is shortened, and automatic test integration is facilitated.

The invention relates to the technical field of filters, in particular to a superconducting filter working in a short-wave frequency band, which comprises a metal shielding shell and a plurality of sub-filters connected in sequence, every two adjacent sub-filters are connected through a gold wire bonding wire, and each sub-filter comprises a plurality of resonance units. A plurality of resonance units in one sub-filter are coupled to form a resonance circuit, one end of each resonance unit is grounded, the other end of each resonance unit is connected with a capacitor, the sub-filters are interconnected in a gold wire bonding mode to form a complete filter, the larger the number of the sub-filters is, the better the out-of-band rejection degree of the filter is, and the more the sub-filters are, the better the out-of-band rejection degree of the filter is. The out-of-band rejection performance of the superconducting filter is effectively improved, and the design period is shortened; moreover, the working frequency of the superconducting filter is effectively reduced, and the application scene is expanded.

The invention relates to a large-scale wide-angle scanning phased-array antenna performance calculation and simulation verification method, and belongs to the technical field of microwave antennas. According to the law of conservation of energy and the design theory of an array antenna, in combination with a practical route of theoretical derivation and finite element method simulation verification, through calculation of a series of small arrays with different scales, high trueness of finite element simulation and completeness of theoretical derivation are combined, and by means of the strong numerical calculation capability of Matlab, a high-precision and high-precision array antenna is obtained. The high-accuracy performance calculation of the large-scale phased array is realized, the calculation efficiency of the traditional large-scale phased array is greatly improved (hundreds of times), the problem that the performance of the large-scale array antenna cannot be accurately and efficiently estimated in engineering is solved, and the design cost of the antenna is greatly reduced.

The present invention discloses a method for identifying key residues for exploring small molecule-protein binding based on stretching molecular dynamics. The present invention simulates a system composed of different small molecules and proteins by stretching molecular dynamics method, studies the dissociation kinetics of small molecules, and analyzes the key factors affecting the dissociation rate of small molecules. The method can study mutants of viruses and analyze the inhibitory effects of inhibitors on different viral mutations by means of computational biology simulation. Compared with traditional molecular dynamics methods, this method can accelerate the simulation to the physiological reaction time scale. The method can provide sufficient theoretical basis for structure-based drug design and improve the inhibitory effect of inhibitors on viral mutants from the atomic level.

The invention relates to the technical field of costume design, in particular to an automatic rotary segmentation costume template model and a digital architecture method, which reduce manual modeling and improve modeling efficiency. The method comprises the steps of determining a to-be-modeled garment style, and performing vector drawing on the to-be-modeled garment style to obtain a garment style plane structure chart; performing structure segmentation on the garment style plane structure chart to obtain a garment style substructure set; the clothing style substructure set comprises a plurality of plane substructures forming a clothing style plane structure chart; collecting a historical garment template of the to-be-modeled garment style; aiming at each plane substructure, calculating a structure change rate of the plane substructure in the historical clothing template, and marking the structure change rate into a clothing style substructure set; and screening the clothing style substructure set by utilizing a preset structure change threshold, and marking the plane substructures with the structure change rates exceeding the preset structure change threshold as variable plane substructures.

The invention discloses an intelligent automobile modeling screening method based on a measurement aesthetic entropy evaluation model, and relates to the technical field of automobile design. The method comprises the steps of collecting automobile modeling image data, performing preprocessing operations such as gray processing, background cutting and standardization processing on an image, and constructing a line draft image set for automobile modeling beauty value calculation; calculating an automobile modeling beauty degree value based on a measurement aesthetic entropy evaluation model; a pre-trained ResNet50 convolutional neural network model is used for training, a mean square error (MSE) is used as a loss function, and an Adam optimizer is used for parameter updating until the loss function converges; and finally, intelligently screening the automobile modeling schemes according to the trained model. According to the method, objective and quantitative evaluation of the automobile modeling scheme is realized, the efficiency and accuracy of automobile design are improved, a new design tool and method are provided for automobile designers, and innovation and development of automobile intelligent design are promoted.