292 results about "Single shot" patented technology

The invention discloses a multi-channel radar foresight imaging method based on sparse and weighted low rank, and solves the problem that the foresight super-resolution imaging effect is limited in a complex imaging scene in the prior art. The method comprises the following steps: establishing an echo signal model in a multi-channel radar single-transmitting single-receiving mode, and obtaining an echo signal corresponding to each target; carrying out pulse compression and correction processing, representing a two-dimensional echo matrix, and carrying out weighting processing on a target signal matrix in the two-dimensional echo matrix to obtain a weighted target signal matrix with a low-rank characteristic; obtaining a foresight imaging model according to the sparsity of the target in the echo signal model and the low-rank characteristic of the weighted target signal matrix; solving the foresight imaging model based on ALM under an ADMM framework to obtain a reconstructed foresight high-resolution image; according to the method, the high-quality and high-resolution reconstructed foresight high-resolution image is obtained through sparse and weighted low-rank dual constraints.

The invention discloses a high-speed camera data self-adaptive two-stage caching system and method and a storage medium, and relates to the technical field of machine vision high-speed imaging and high-speed data storage, a preprocessing unit is used for performing deserialization and parallel connection, ROI cutting and gain adjustment on collected item number data, and writing incremental FrameID and cyclic redundancy check codes into each frame; the DDR annular cache unit comprises a monitoring module, a decision module and an execution module; the decision module is used for calculating an instantaneous cache demand Cnew and a dynamic cache occupancy U; the execution module expands and shrinks an annular buffer space in a single shot through a DDR4 controller, and outputs a Hi / Lo mark in real time through an occupancy rate comparator to drive an NVMe queue manager. According to the invention, on the premise of zero extra burden in a normal working condition, millisecond-level automatic capacity expansion and high-speed flood discharge can be realized in a sudden working condition, and real-time frame-level integrity verification can be completed on a local FPGA (Field Programmable Gate Array) side. The patent is subsidized by national key research and development plans, and the project number is 2023YFF0719700.

A system and a method for single-shot compressed optical-streaking ultra-high-speed imaging, the system comprising a spatial encoding module spatially encoding the transient event with a binary pseudo-random pattern into spatially encoded frames; a galvanometer scanner temporally shearing the spatially encoded frames; and a CMOS camera receiving the temporally sheared spatially encoded frames, during one exposure time of the camera, for reconstructing the transient event. The method comprises spatial encoding a transient event; temporal shearing resulting spatially encoded frames of the event, spatio-temporal integration, and reconstruction.

The invention discloses a one-dimensional and two-dimensional simultaneous diagnosis shock wave velocity measurement system, and relates to the technical field of shock wave velocity diagnosis. The system comprises a targeting light receiving unit, a one-dimensional line imaging unit and a two-dimensional velocity field unit which are arranged on the same light path, the target shooting light receiving unit comprises a light receiving module and a target spot; the one-dimensional line imaging unit comprises a probe light injection module, a light splitting module, a first beam splitter, a first reflector, an interference module and a one-dimensional continuous velocity field measurement module; the two-dimensional velocity field unit comprises a two-dimensional dynamic velocity field diagnosis module; the two-dimensional dynamic velocity field diagnosis module comprises an integration branch and a compression coding branch. According to the system provided by the invention, in the process of performing one-dimensional and two-dimensional shock wave velocity field diagnosis, one-dimensional shock wave velocity evolution and two-dimensional velocity field non-uniformity evolution data can be simultaneously obtained in a single-shot experiment, the overall structure is compact, and a foundation is laid for shock wave velocity multi-dimensional diagnosis.

The invention relates to the technical field of laser processing, particularly discloses an ultrathin prepreg single-emitting laser hole forming system, and aims to solve the contradiction among precision, thermal damage and efficiency in ultrathin prepreg laser processing. According to the system, through cooperation of an ultrashort pulse laser source, precise light beam shaping and transmission, material processing and positioning, real-time monitoring and feedback and an intelligent control and optimization module, laser and material interaction is finely regulated and controlled. In a single laser event or an equivalent single laser event, high-precision and low-damage microstructure processing of the ultrathin prepreg is realized, the defects of a heat affected zone, carbonization, layering and the like are effectively reduced, and the processing quality and efficiency are improved.

The invention relates to the field of geophysical exploration, and discloses a seismic data noise suppression method, which comprises the following steps: screening adjacent shot interference from an original single shot record by using a tau-p-q domain sparse inversion method to obtain a primary single shot record; linear interference is screened out from the primary single-shot record in a frequency domain transformation mode, and a secondary single-shot record is obtained; extracting an energy threshold value of the secondary single-shot record by utilizing a frequency division energy statistics mode, and performing primary noise suppression on the secondary single-shot record by utilizing the energy threshold value to obtain a de-noised single-shot record; and respectively extracting a primary effective signal and a surface wave signal from the de-noised single-shot record, extracting a standard single-shot record from the primary effective signal and the surface wave signal by using a frequency division noise automatic identification and attenuation method and an adaptive spectrum editing method, and ending noise suppression. The invention further provides a noise suppression device and equipment for seismic data, a medium and a program. According to the invention, the accuracy of seismic data imaging can be improved.

The invention discloses a parallel imaging OCT (Optical Coherence Tomography) system based on a metasurface area array, which relates to the technical field of medical instruments, is small in size and can realize intraocular single-shot area array imaging and a three-dimensional position depth perception function by using metasurface and optical coherence tomography imaging information in a sample tissue with a limited size. According to the technical scheme, a light beam emitted by a laser is divided into two paths through a beam splitter, and the two paths enter a sample arm module and a reference arm module respectively; the sample arm module is a probe and comprises a multi-core optical fiber and a first metasurface; the reference arm module comprises a collimator, a motor and a right-angle reflector; the probe enters a sample tissue, a light beam is focused on the sample tissue and then is backscattered, the backscattered light beam reversely passes through the first metasurface, the multi-core optical fiber, the beam splitter, the second metasurface, the third lens, the grating and the focusing lens and then forms a spectral line beam on the CCD sensor, and the computer reads a signal from the CCD sensor and performs three-dimensional reconstruction imaging on the sample tissue.

The invention discloses a fan inspection method based on efficient matrix shooting of an unmanned aerial vehicle, and the method comprises the steps: collecting fan data, and calculating a fan pose parameter based on the fan data; fan blade areas shot at different positions at a single time are calculated in combination with the fan pose parameters, and an inspection route of the current fan blade is generated according to the fan blade areas; on a shooting waypoint of the inspection route, fan blade endpoint ENU coordinates needing to be shot are calculated, and the fan blade endpoint ENU coordinates are converted into fan blade endpoint image coordinate system coordinates; combining the coordinates of the fan blade area image coordinate system and the coordinates of the fan blade endpoint image coordinate system to generate final fan blade endpoint image coordinates; and based on the final fan blade end point image coordinates, calculating a matrix shooting array corresponding to the area needing to be shot. According to the invention, the problem that the picture of the fan blade is not clear enough in the inspection process is effectively solved, and high-definition and high-zoom shooting of the fan is realized.

The invention discloses a robot intelligent control method and system based on an image analysis algorithm, and the method comprises the steps: recognizing the multi-target features of an operation environment image through an optimized Single Shot Multi-Box Detector algorithm, generating a feature vector set, inputting a robot multi-dimensional posture regulation and control model to calculate a joint angle parameter, determining a motion planning strategy through the combination of robot intelligent control parameters, and carrying out the operation of a robot. And the joint driving device is controlled to realize robot movement. During movement, joint angle and tail end position information is collected in real time and fed back to the regulation and control model, and a movement planning strategy is dynamically adjusted through comparative analysis. The system comprises six mutually connected units including an image feature recognition processing unit and a posture regulation and control calculation unit which are respectively corresponding to each step function of the method. According to the invention, the whole process intelligence of the robot from environment perception, motion planning to accurate control is realized, and the accuracy and stability of robot operation are improved.

The invention discloses an all-solid-state snapshot full-Stokes parameter measurement and imaging enhancement sensor device. The all-solid-state snapshot full-Stokes parameter measurement and imaging enhancement sensor device comprises a micro-lens array module, a liquid crystal phase modulation module, a polarization wire grating array module and an image sensor module. The micro lens array module is composed of a plurality of micro lenses which are arranged in a two-dimensional mode, and incident light is focused on the photodiode of each pixel. The liquid crystal phase modulation module is composed of two high-speed liquid crystal variable phase delayers, and active phase modulation is carried out on the polarization state of incident light. Polarized light information in four polarization directions can be obtained only through single shooting in the polarization wire grating array module. The image sensor module calculates the full Stokes parametric polarization characteristics of the incident light. According to the invention, full-polarization information measurement of incident light can be realized only through single exposure, and a polarization enhancement mode is switched after measurement is completed, so that the imaging efficiency of the sensor in dark light scenes such as weak contrast target detection is greatly improved.

A single-shot rifle having a barrel unit and a butt-box unit consisting of a box, a butt having a butt axis, fixed to the box, and a butt-plate fixable to the butt is provided. The barrel unit is detachable from the butt-box unit. The butt-plate is manually rotatable between a use position and a rest position and the barrel unit is laterally couplable to the butt-box unit. The single-shot rifle with separate parts is insertable into a substantially rigid tube for carrying the weapon. The tube and the single-shot rifle housed in the tube form a floating, waterproof assembly.

The present application relates to a kind of seismic data amplitude compensation method and system.The method includes obtaining seismic data;The seismic data obtained is carried out surface consistency amplitude compensation, and the analysis is carried out to the stack section of the compensated seismic data, determines that energy lower area and energy higher area, at least one single shot data is extracted in energy lower area and energy higher area respectively, according to the frequency characteristics of each single shot data, according to the principle that the frequency characteristics trend of each single shot data in each frequency band is consistent, the frequency of seismic data is divided;The seismic data of each frequency band is respectively carried out surface consistency amplitude compensation.In the present application, the problem that the amplitude compensation effect is not obvious in prior art can be solved.

A building management system, such as a small or medium business, having one or more control devices. Assigning codes to devices, and reading and listing them may aid in configuring the devices. Templates may be used for dynamic configuration of devices and equipment. Representing terminal assignments and wiring diagrams of control devices may be intuitive in that they resemble real hardware for ease of complete installation. The present system and approach may provide an intuitive way of securely registering devices with cloud usage, for example, involving a mobile phone with no manual entry of data so that a user can complete this process with ease. An intuitive, automatic and asynchronous device configuration downloading may be seen, such as to multiple control devices in a single shot. There may be seamless configuration data synchronization, for example, in view of replacement devices, or so the latest data is readily available.

A one-shot circuit is provided. The one-shot circuit includes a one-shot main circuit and a shielding time window circuit. The one-shot main circuit is configured to receive, through a NOR gate, an input signal of the one-shot circuit, the feedback of an output signal of the one-shot circuit, and a time window signal output by the shielding time window circuit, and then obtain the output signal through a first RC delay circuit and a logic gate. The time window signal is a signal that resists the interference of the abnormal pulse of the input signal with the output signal. The shielding time window circuit is configured to receive the feedback of the output signal, and then obtain the time window signal through a second RC delay circuit and a logic gate.

An object detection system that can detect drone objects with high accuracy and low computational complexity, includes a camera for capturing an image, processing circuitry, and a display device. The processing circuitry is configured to input the image. The processing circuitry includes a machine learning network, having a feature extraction backbone with addition-based filters that use addition as a similarity measure to extract features of the image, a path to add low-level features to high-level features, and a single shot detector (SSD) network that outputs an image with possible classes of an object in the image based on the extracted features. The display device displays the image with a label for the detected object based on a selected class. The SSD network backbone can be configured with a SWIN transformer to extract features. The SWIN transformer includes a shifted window self-attention and allows training the SSD model with dynamic image sizes.

The invention provides a gas target generation method and device and an accelerator, and relates to the technical field of laser plasma accelerators. The gas target generation method provided by the invention comprises the following steps: placing a blocking sheet at a gas outlet; the gas target material is accelerated and sprayed out through a gas outlet so as to generate oblique shock waves, and then a gas target is formed; the laser pulse and the gas target act to form a tail wave field formed by plasma, ionization injection is carried out, and the complex phase and density gradient injection process is accelerated. Accelerating electrons are captured in the ionization injection process in the gas target density uniform distribution section, and electron beams reaching the deceleration phase return to the acceleration phase again through the acceleration multiphase process in the density rising section of the gas target, so that the acceleration distance is prolonged; through the density gradient injection process in the gas target density descending section, the charge quantity of electron beams is increased, the transverse amplitude is increased, and the number of single luminous photons of the Betatron X-rays is further efficiently increased.

An unmanned quadcopter aircraft system integrated with a pneumatic paintball projectile launching mechanism for recreational and training applications. The system includes a compressed gas powered single-shot paintball launcher with gravity-fed ammunition hopper, mechanical counterweight recoil compensation, and multiple electronic safety systems. GPS-based geofencing prevents firing in restricted zones, while altitude sensors prevent firing above predetermined heights. The flight control system automatically reduces aircraft speed and altitude limits when the projectile system is armed. A ground control system integrates standard flight controls with firing controls, safety indicators, and emergency stop capability. An alternative embodiment allows a used to adjust the elevation of the firing system while maintaining the orientation of the drone in space and also allowing recoil compensation. The system enables aerial paintball gaming and training scenarios while maintaining safety through redundant control systems and automatic parameter limiting.

The invention discloses a device and method for simultaneously determining the detonation velocity and detonation pressure of micro-scale charge, and belongs to the technical field of detonation performance testing of energetic materials. The device comprises a laser, a charging system, a detonation velocity testing system and a detonation pressure testing system, the charging system comprises a charging clamp, a sample containing groove and a sample ring, the sample containing groove is fixed in the charging clamp, and the sample ring is assembled in the sample containing groove; the detonation velocity testing system comprises a probe, a direct-current power supply and an oscilloscope; the detonation pressure testing system comprises an optical fiber and a photon Doppler velocity tester. During use, a to-be-tested sample is pressed into the sample rings, the probe is embedded between the two sample rings, the to-be-tested sample is detonated by using energy provided by the laser, the detonation velocity and detonation pressure of the to-be-tested sample can be measured at the same time, the sample amount required by a single shot experiment is within 200 mg, and compared with a traditional test method, the sample consumption is greatly reduced, and meanwhile, the test safety is improved.

The utility model discloses a node seismograph single-shot data real-time monitoring system. The system comprises a node seismograph and a node seismograph numerical control module which are located on the ground, and an unmanned aerial vehicle module and an air mounting module which are located in the air. Wherein a plurality of node seismographs are distributed; the unmanned aerial vehicle module can fly above the node seismograph; the aerial mounting module is carried on the unmanned aerial vehicle module, and the aerial mounting module is in communication connection with the node seismograph so as to receive data of the node seismograph and send the data of the node seismograph to the node seismograph numerical control module; the node seismograph numerical control module is in communication connection with the air mounting module so as to monitor the single-shot data state of the node seismograph in real time. Compared with the situation that internal data of a blind acquisition seismograph used in traditional large-scale active source seismic exploration operation can only be exported by means of a special data export box, the system can recover all the data of the node seismograph as long as the unmanned aerial vehicle flies to the sky above the node seismograph.

The invention discloses a seal identification method and device, equipment, a medium and a product, which are applied to the field of financial science and technology, and the method comprises the steps: obtaining a to-be-identified image, and determining a target prediction box in the to-be-identified image through a pre-constructed target detection model, the to-be-identified image comprising an unformatted contract; and determining a target feature category of the to-be-recognized image according to the target prediction box and a pre-constructed feature recognition model, and generating a seal recognition result of the to-be-recognized image according to the target feature category. The advanced single-shot multi-frame detector SSD network technology is utilized to adapt to various complex seal styles and image backgrounds, the generalization ability of the model is improved, the target area in the to-be-recognized image can be detected through the target detection model, and the seal positioning accuracy and speed are improved. And the generated seal identification result provides valuable information for unformatted contract management of a bank, so that automatic filing, classification and statistics are realized, and the management efficiency and precision are improved.

The invention belongs to the technical field of three-dimensional imaging, and particularly relates to an active light field three-dimensional imaging method based on phase guidance. The phase information is introduced into the light field stereo matching process, and the spatial resolution loss of the light field camera is compensated through phase guidance measurement, so that the bottleneck problem that the existing light field camera is limited by the sub-aperture resolution to cause the low resolution of the depth map is solved. Based on effective fusion of the light field and the structured light, three-dimensional reconstruction with high pixel resolution can be realized in single shooting, the robustness and precision of depth estimation can be ensured, and the method has wide application potential in the fields of precision measurement, industrial detection, three-dimensional modeling and the like.

The invention discloses a vibroseis synchronous excitation method and device, and relates to the technical field of seismic exploration, and the method comprises the steps: loading a plurality of frequency division scanning signals into different vibroseis for many times, obtaining a plurality of vibroseis groups, and enabling the vibroseis in each vibroseis group to be in one-to-one correspondence with the frequency division scanning signals; the plurality of vibroseis groups are controlled to sequentially excite and scan in the target area according to a first time interval threshold value, the plurality of vibroseis in each vibroseis group are synchronously excited, and the excitation time interval of different vibroseis groups is the first time interval threshold value; the first time interval threshold value is determined according to the harmonic interference degree between different frequency division scanning signals and the first distance threshold value; performing correlation processing by using the seismic data acquired by each vibroseis group and the synthesized reference signal to obtain a plurality of correlated seismic single shot data; and the synthetic reference signal is formed by vertically superposing and synthesizing a plurality of frequency division scanning signals. According to the invention, the seismic data aliasing noise can be reduced.

The invention relates to a blasting ammunition quantity evaluation method for empty ammunition, belongs to the technical field of empty weapon damage evaluation, and solves the problem of inaccurate blasting ammunition quantity evaluation caused by incapability of comprehensively covering existing damage probability calculation and poor damage probability accuracy. Comprising the following steps: constructing a target three-dimensional model based on each component of a target, and establishing a vulnerability curve, a shock wave overpressure threshold value and a target damage tree when each component is hit by a fragment; according to the detonation posture of the warhead, a fragment and shock wave power field model during detonation of the warhead is established, the target damage probability of all detonation positions is obtained, and a damage matrix is obtained; on the basis of the circular probability error radius, a probability density function is obtained, a hit matrix with the same size as the damage matrix is obtained, then the single-shot damage probability is obtained, and then the explosive quantity is obtained according to the set task expected damage probability and serves as an evaluation result of the explosive quantity. And accurate evaluation of the explosive quantity of the empty ammunition is realized.

An end effector for a surgical tool includes a jaw including a shank and a contact plate forming part of the shank, an electrical conductor including an insulation sheath and a supply conductor coupled to the contact plate to supply electrical energy to the jaw, and a jaw holder comprising a molded component overmolded onto portions of the shank, the contact plate, and the electrical conductor in a single shot. The molded component encapsulates and electrically insulates the contact plate and an exposed portion of the supply conductor.

The application relates to the technical field of image detection, and provides a human target detection method, an electronic device and a storage medium. The human target detection method comprises the following steps: acquiring an image frame from a video stream; extracting a foreground image of the image frame by using a mixed Gaussian background model; extracting an outline of the foreground image; calculating the area of a minimum circumscribed rectangle of the outline; judging whether the area of the minimum circumscribed rectangle of the outline is greater than or equal to a preset area threshold; and if the area of the minimum circumscribed rectangle of the outline is greater than or equal to the preset area threshold, performing human target detection on the image frame by using a single-shot multi-box detection (SSD) model. The application can effectively reduce the calculation of the image frame without a human target in the video stream detection task, and improve the human target detection speed.

The application discloses a kind of artillery barrel residual life prediction method, to the interior ballistic parameter obtained in artillery shooting process as foundation, in the process of each ammunition launch, the pressure of the bottom of the shell and the movement speed of the projectile at multiple discrete time points in the movement stage of the barrel are collected in real time, and the integrated feature vector for representing single shot process is constructed in combination with artillery state information, based on integrated feature vector, single wear prediction model based on BP neural network is constructed and trained, after model training is completed, the wear of barrel caused by each shot is predicted using single wear prediction model, and the degradation state of barrel is dynamically updated through wear accumulation mechanism, in combination with the preset barrel wear failure threshold, the wear evolution in the subsequent shooting process of artillery barrel is forwardly predicted, and then the residual available firing number of artillery barrel is obtained, to realize the quantitative evaluation of residual life.

1. The name of the product of this design: Monitoring device (single camera). 2. The purpose of this design product: used for security monitoring and video recording, etc. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

A method for improving an accuracy of object classification, the method includes: (i) receiving, by a machine learning process, information regarding an environment of a vehicle; (ii) classifying, by the machine learning process, an object that is located within the environment of the vehicle to a certain class; wherein the machine learning process was trained by a training process to classify objects while avoiding false positive (FP) errors that are represented by different FP data sets that are fed to the machine learning process during the training process, the different FP data sets are associated with different classes; wherein for each class of the different classes, a FP data set that is associated with the class comprises FP data sub-sets that are associated with different objects that were mistakenly classified to the class; and outputting an outcome of the classification for use in navigating the vehicle.

The application discloses a kind of multi-channel radar forward-looking imaging methods based on sparse and weighted low rank, solve the problem that forward-looking super-resolution imaging effect is limited in prior art under complex imaging scene;The method comprises: establishing echo signal model under the mode of multi-channel radar single launch single receiving, and obtaining the echo signal corresponding to each target;Again, after pulse compression and correction processing, it is expressed as two-dimensional echo matrix, the target signal matrix in two-dimensional echo matrix is weighted, and the weighted target signal matrix with low rank characteristics is obtained;According to the sparsity of target in echo signal model and the low rank characteristics of weighted target signal matrix, the forward-looking imaging model is obtained;The forward-looking imaging model is solved based on ALM under the ADMM framework, and the reconstructed forward-looking high-resolution image is obtained;The method realizes through sparse and weighted low rank double constraint, and then obtains high-quality, high-resolution reconstructed forward-looking high-resolution image.