214 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.

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 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.

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.

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 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 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 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.

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.

The invention provides a networking implementation method of through-the-earth wireless electronic detonators, which belongs to the technical field of wireless detonator networking, and comprises the following steps of: punching N blast holes according to the diameter of a transceiver according to the blasting area environment and the blasting effect requirement; single-shot function detection is conducted on each electronic detonator, if the function is normal, explosive is loaded, the detonator with the explosive is placed in the deep position of a blast hole, function detection is conducted on each wireless transceiver, and the blast hole is filled with soil and plugged through the transceivers. The wireless repeater communicates with the N transceivers through the first system and is registered in a wireless detonator network, and after the far-end wireless detonator is started, the far-end wireless detonator communicates with the wireless repeater through the second system to obtain networking information, so that the networking detection process of the through-the-earth type wireless electronic detonator is completed; after the networking detection process is completed, charging and detonating instructions are issued based on the wireless exploder, and the whole through-the-earth type wireless electronic detonator network is controlled to conduct detonating operation. And more convenient conditions are provided for blasting construction.

To provide a game machine that contributes to, through presentations, an improvement of game amusement.SOLUTION: A presentation control microcomputer 121 allows setting of a notification B mode as a single shot notification mode through an operation of a normal button 40. In the notification B mode, a rotating beacon image G700 representing a rotating beacon lamp is always displayed in an off state at an upper part of a display portion 50a. Then, if a result of a big win determination in the notification B mode is a big win in a lottery, display is performed in which the rotating beacon image G700 is switched on.SELECTED DRAWING: Figure 17

A high-performance single-shot contrast measurement device with real-time self-verification of accuracy is characterized in that the sampling light of the single-shot contrast measurement device is obtained based on spectral broadening and spectral filtering in a self-phase modulation process, so that the sampling light has high contrast, high energy, and a large difference from the central wavelength of the incident light, and good stability; at the same time, the sampling light introduces a series of intensities through a pulse replication unit to be attenuated in sequence, and is offset at equal intervals in position. The sampling light is also evenly spaced in time for self-verification of the measurement accuracy of the measurement device. This invention realizes the characteristics of single-shot contrast measurement with high measurement dynamic range, wide time window, high time resolution, high measurement fidelity, simple and compact device, and real-time verification of the accuracy of measurement results, providing better support for improving the contrast of ultra-strong and ultra-short laser pulses and related laser-matter interaction experimental research.

The application provides a radar precipitation measurement method and device based on a 45-degree slant depolarization ratio, which uses a radar with or modified to realize 45-degree slant polarization to collect single-shot double-receiving two-channel complex voltage data, calculates a slant baseline linear depolarization ratio and a reflectivity factor Z; identifies a melting layer according to a vertical pointing profile observation collected by the radar in a vertical pointing mode, and applies upper and lower boundaries of the melting layer to a near-horizontal scanning mode to realize liquid rainfall identification; performs rain attenuation correction on and Z, and according to the rain attenuation corrected and Z, looks up a table or a neural network to inverse precipitation parameters such as rainfall intensity, mass-weighted mean diameter, normalized intercept, number concentration and water content. The application improves the precision and robustness of precipitation measurement.

This application provides a method, apparatus, and accelerator for generating a gas target, relating to the field of laser plasma accelerator technology. The method for generating a gas target includes placing a baffle plate at a gas outlet; accelerating a gas target material and ejecting it through the gas outlet to generate an oblique shock wave, thereby forming a gas target; and using a laser pulse to interact with the gas target to form a wake field composed of plasma, resulting in ionization injection, accelerated phase re-phase, and density gradient injection processes. This application captures accelerated electrons during the ionization injection process in the uniform density distribution section of the gas target, extends the acceleration distance by allowing the electron beam, which has reached a deceleration phase, to return to the acceleration phase during the accelerated phase re-phase process in the density rising section of the gas target, and increases the charge and transverse amplitude of the electron beam during the density gradient injection process in the density falling section of the gas target, thereby efficiently increasing the single-emittance number of Betatron X-rays.

The present application relates to the field of oil seismic exploration method, disclose a kind of oil seismic surface wave dispersion curve automatic extraction method, including prestack single shot data preprocessing, dispersion energy spectrum calculation, threshold transformation processing, mask image morphological dilation processing, mask small area object removal processing, mask morphological corrosion processing, mask and dispersion spectrum point multiplication (Hadamard product) operation, dispersion automatic picking.The present application uses image threshold transformation and morphological operation to process the dispersion energy spectrum of oil seismic surface wave, suppresses other types of wave field except surface wave in the energy spectrum of frequency-velocity domain, retains the dispersion band information of surface wave, and automatically identifies and extracts dispersion curve from the image containing only surface wave dispersion energy band, so as to realize the automatic measurement of dispersion curve.

The invention provides an efficient cooperative construction method, device and equipment for simultaneous operation of multiple geophysical prospecting teams, relates to the technical field of seismic prospecting, and aims to solve the problem that the construction efficiency is low under the condition that the distance between shot points constructed by the multiple geophysical prospecting teams in the same time window in adjacent work areas is smaller than the minimum distance of synchronous excitation in the prior art. The method comprises the following steps: integrating adjacent work areas for analysis, calculating the lower limit value of the root-mean-square energy of the upper cannon interference of a conventional production cannon, and drawing a first time distance curve meeting the condition that the upper cannon interference is not greater than that of the production cannon by utilizing a single-cannon data single-cannon energy attenuation time-space domain distribution plane graph of a long-record long-arrangement-point test; according to the seismic data of the work area, obtaining the lowest refracted wave speed, and calculating a second time distance relation curve when the last shot refracted wave does not enter the single shot data; and an area clamped by the first gun loading interference time distance curve and the second gun loading interference time distance curve is used as a distance range of staggered excitation of two guns in adjacent work areas, a blasting time interval is dynamically calculated, and staggered excitation is carried out.

Abstract Apparatus and methods are presented for spectral domain optical imaging, in particular for single shot 3-D spectral domain imaging of the retina of the human eye. In certain embodiments one or more 3-D images across elongated areas of an object are acquired, with scanning perpendicular to the long axis of the elongated areas for imaging extended volumes of 5 the object. In preferred embodiments the captured light is sampled in the Fourier plane, in a dimension substantially perpendicular to the long axis, with a cylindrical lenslet array, while in other embodiments the captured light is sampled in the image plane. Apparatus and methods are also presented for hyperspectral imaging of the retina, with the illuminating beams preferably angled to suppress interference from corneal reflections. Apparatus and methods are 10 also presented for multi-wavelength wavefront sensing, with simultaneous capture of light in two or more paths with different delays. 5 1020 26 20 47 51 19 J un 2 02 6 A b s t r a c t 1 9 J u n 2 0 2 6 5 2 0 2 6 2 0 4 7 5 1 1 0

This invention discloses a method for correcting firing parameters in a closed-loop firing correction system suitable for conditions with very few satellite measurement points. It adds a rotational speed measuring device to the projectile system to measure the real-time rotational speed of the artillery projectile. Based on external ballistics theory, this invention utilizes muzzle rotation speed, ballistic speed, and measurement data (coordinates and velocities) from a limited number of ballistic points to propose a method for estimating the range and lateral deviations of a single projectile relative to the target point. This allows for the rapid determination of the launch angle and directional corrections, enabling artillery firing correction. This invention solves the key problem of how to quickly and accurately determine the firing parameter corrections of a closed-loop firing correction system when there are very few ballistic measurement points, greatly improving the adaptability and reliability of the closed-loop firing correction system under complex battlefield conditions and effectively enhancing the combat capability of the weapon system.

The application belongs to the field of oil and gas geophysical exploration, and discloses a kind of geophone combination to improve the calculation method of signal-to-noise ratio degree of single shot data, and the signal-to-noise ratio of geophone combination is improved multiple times compared with geophone single point G , the surface wave suppression amplitude value of geophone combination b 1, the refraction wave suppression amplitude value b 2, the reciprocal of the signal-to-noise ratio of geophone combination suppression random interference wave b 3, the amplitude ratio of surface wave and refraction wave k , the surface wave suppression coefficient, refraction wave suppression coefficient and random interference wave suppression coefficient of geophone combination are obtained, and finally the formula of the signal-to-noise ratio improvement multiple of geophone combination compared with geophone single point is obtained.The application is suitable for calculating the degree of signal-to-noise ratio of single shot data improved by geophone combination, the calculation result is clear, the reliability is strong, the calculation method is fast, and the quantitative basis can be provided for the selection of geophone combination number and group distance in seismic acquisition engineering technical design.

The utility model relates to the field of defense devices, in particular to a novel multi-pipe pulse type jet device. The launching device comprises a launching control body and a supporting frame. The inner side of the supporting frame is annularly filled with a plurality of sets of liquid pipe assemblies, and each liquid pipe assembly comprises a rear pipe body, a front pipe body communicated with the rear pipe body, liquid filled in the front pipe body, a nozzle arranged at the front end of the front pipe body, gas production medicine filled in the rear pipe body and an electric control thermal element which is arranged in the rear pipe body and ignites the gas production medicine when being excited. The piston is pushed by gas generated after the gas generating medicine is ignited to slide in the front pipe body, and the liquid is sprayed out through the nozzle; and the emission control body is connected with the support frame and is in control connection with the electric control thermal element. A plurality of liquid pipe assemblies can be filled, continuous multiple single shooting or continuous shooting of liquid media can be achieved, and the spraying distance is longer.

The invention relates to the technical field of aero-engine numerical control system architecture design, and particularly discloses a backup control architecture of a single-engine manned rotorcraft engine control system, which comprises a backup control box, a backup control motor and a digital electronic controller, when the digital electronic controller receives a manual backup training instruction or judges that the engine has a fault currently, a manual backup control instruction is output to the backup control box, and when a pilot operates an oil adding and reducing switch, an oil adding and reducing instruction is output to the backup control box; the backup control box drives the backup control motor to control the action of the backup metering valve; and when the digital electronic controller receives the manual backup training quitting instruction and judges that the engine has no fault at present, the digital electronic controller enters an automatic control mode and outputs a neutral reset request instruction to the backup control box, and the backup control box drives the backup control motor to control the backup metering valve to move towards the neutral position. The method has the characteristics of simple logic, high safety and friendly pilot operation.