31results about How to "Achieve synchronous fetch" patented technology

The invention relates to a machine vision synchronous focusing scanning type laser vibration measuring device and belongs to the technical field of precision measurement of impact and vibration. The device is composed of a machine vision measuring unit, a position resolving and control unit, a scanning focusing control unit, a scanning laser vibration measurement optical assembly, an interference signal demodulation unit and a control and information processing unit. Synchronous focusing of the device is finished through the machine vision measuring unit to achieve correlation management of measured space coordinates and focusing information of the scanning type laser vibration measuring device. The machine vision synchronous focusing scanning type laser vibration measuring device is simple in structure and convenient to operate, facilitates measurement and control, can effectively improve impact and vibration measuring accuracy, achieves synchronous focusing through the machine vision measuring unit and improves scanning vibration measuring speed and accuracy.

The invention discloses a three-dimensional point cloud data acquisition device and a three-dimensional point cloud data acquisition method by means of a two-dimensional laser scanner, wherein a coordinate conversion method of laser point cloud data from two-dimensional data to three-dimensional data is presented. Influences of factors such as sensor working mode difference and hardware process level to a conversion process are analyzed, and furthermore a corresponding settlement method is presented. The settlement method comprises the steps of approximating true speed of a turntable through Kalman filtering; correcting serial-port data acquisition time; compensating an angle change amount of a laser point in one period; and calculating angle deviation and position deviation of the laser scanner in a horizontal axis and a longitudinal axis. Experiments represent a fact that a spatial three-dimensional point cloud structure can be accurately acquired in static three-dimensional laser scanning by means of a rotating platform. In moving scanning, because of relatively small size, the position of a moving platform can be obtained through data registration in acquiring the three-dimensional data, thereby realizing synchronous map acquisition and positioning.

The invention discloses a micro-polarization modulation array for achieving full-polarization imaging. The micro-polarization modulation array for achieving the full-polarization imaging is composed of a micro-phase delayer array and a polarizing film, wherein the micro-phase delayer array is composed of a first crystal grating and a second crystal grating which are adhered, the directions of trunkings of the first crystal grating and the second crystal grating are mutually perpendicular, the second crystal grating is adhered with the polarizing film, and a through optical axis of the polarizing film and a fast axis of the first crystal grating are parallel. The micro-polarization modulation array for achieving the full-polarization imaging is used for an interference imaging spectrometer to lead in polarization information, easy and convenient to use, a polarization is not required, a theoretic aliasing phenomenon does not exist in interfering information which corresponds to polarization states, and spectral resolution and accuracy of restoring spectrums of an interference kind imaging spectrum polarization technique are improved.

The invention relates to medical examination and diagnosis methods and instruments, in particular to a multi-dimensional electrocardiosignal imaging system and method. The body surface electric potential mapping technology and the electrocardio vector technology are integrated, a new non-invasive platform is provided for recording the heart-across-myocardium electrical activity information, and in other words, a new non-invasive body surface heart-across-myocardium electrical activity information imaging method and technology which are formed by combining the vector center 0 point galvanic coupling and body surface electric potential mapping technology and are similar to satellite positioning are provided. The non-invasive electrocardio function imaging method and technology for detecting heart-across-myocardium electrocardio activity information with the dissection positioning as a basis are provided. According to the multi-dimensional electrocardiosignal imaging system and method, the arrhythmia reason can be determined, the cardiac muscle diseases such as myocardial hypertrophy, cardiomyopathy, myocardial infarction and myocarditis can be diagnosed, and a brand new diagnosis tool is provided for fast diagnosing the heat diseases in real time.

The invention provides a visualized flow field and temperature field coupling measurement experiment system. With the visualized flow field and temperature field coupling measurement experiment systemof the invention adopted, the visual measurement of the characteristics of a flow field and temperature field in a complex mechanical structure under different experimental conditions can be simultaneously realized. According to the system of the invention, laser induced fluorescence (LIF) and particle image velocimetry (PIV) are combined to construct a reasonable optical path system; a series ofoptical components such as a beam splitter and a narrow pass filter are adopted to perform wave division processing on light wave signals; a synchronizer is adopted to control a high-speed camera toperform synchronous shooting, so that the synchronous acquisition of the temperature distribution and flow characteristic parameters of a complex flow field in a visualization experiment body can berealized; a modular loop design is adopted, each sub-loop is independent of each other, and therefore, the reliability of the experimental system is high; and whole-field real-time synchronous measurement can be performed on physical parameters in the complex flow field, and an actual flow field will not be disturbed during a measurement process. The system is suitable for the study of the flow characteristics of various complex flow fields.

The invention belongs to the technical field of sea detection radars, and discloses an ocean and ionosphere integrated detection high-frequency radar system and a control method thereof. The ocean and ionosphere integrated detection high-frequency radar system comprises a display control platform, a time schedule controller, a comprehensive signal generator, an ionosphere detection subsystem and an ocean information detection subsystem. According to the invention, according to the principle of a high-frequency ground wave radar and an ionosphere vertical measuring instrument, a novel ocean-ionosphere information integrated detection high-frequency radar system is designed, ocean-ionosphere information synchronous acquisition is achieved, and data support is provided for scientific research such as near-earth ocean-atmosphere physical operation law and principle analysis; and by designing a unified time schedule controller and waveform parameters synchronous with each other, synchronous acquisition of ionospheric vertical measurement and ocean information is realized, mutual interference between the ionospheric vertical measurement and the ocean information is avoided, non-interference between ionospheric vertical measurement and ocean information acquisition is ensured, and ionospheric information and ocean information can be acquired synchronously.

The invention relates to the technical field of intelligent monitoring, and discloses an intelligent monitoring probe, which comprises a camera, a radar, an alarm and a processor, the camera is electrically connected with the processor and is used for acquiring image information; the radar is electrically connected with the processor and is used for acquiring audio information; the processor is used for judging whether an alarm situation occurs or not according to the image information and the audio information; and the alarm is electrically connected with the processor and is used for givingan alarm when an alarm situation occurs. According to the invention, early crime prevention warning and crime process recording can be realized.

The invention discloses a synchronous light-electricity sensing method for a dark-field imaging-based solid nano channel. The synchronous light-electricity sensing method comprises the following steps: (1) preparing a semiconductor substrate film coated with a metal nano coating; (2) preparing a metal coated nano channel chip; (3) preparing a light-electricity detection micro pool; (4) imaging by utilizing a metal coated nano channel dark field; (5) recording ion current intensity by utilizing the metal coated nano channel; (6) adding a to-be-detected object for synchronous light-electricity detection; and (7) analyzing multi-channel data. According to the method, the process that a single to-be-detected nano object can pass through the nano channel can be monitored dynamically in real time without introducing dye groups and labeling so as to acquire dynamic information such as the size, the electrification situation, the light property, the chemical structure of the to-be-detected object; the situation of variation of each type of nature of the single to-be-detected object in the moving process can be observed from multiple dimensionalities; multi-channel signals on a large scale can be acquired synchronously; the detection velocity of a nano channel technique is increased; the application field is widened.

The invention discloses a fusion gene nucleic acid detection method based on combination of capillary electrophoresis fragment analysis and first-generation sequencing. The invention provides a kit for detecting multiple fusion genes. The kit comprises multiple pairs of amplification primer pairs, wherein each pair of amplification primers consists of a primer A and a primer B; the primer A sequentially consists of a linker sequence A used for combining a sequencing primer and a specific sequence A specifically combined with a target sequence of the fusion gene from the 5' end; the primer B sequentially consists of a linker sequence B for adjusting the length of an amplification product and a specific sequence B specifically combined with a target sequence of the fusion gene from the 5' end; and the 5' end of the primer A is modified with a fluorophore. By combining the capillary electrophoresis fragment analysis and the first-generation sequencing, fusion gene nucleic acid-based multiple detection and sequence synchronous acquisition are realized, so that while fragment analysis-based multiple detection is performed, first-generation sequencing is performed on a positive fusion gene to obtain a specific sequence of the positive fusion gene.

The invention discloses a mammary gland electrical impedance scanning imaging hand-held detection probe body surface positioning system and method, which comprises a probe, a reference scale, a probeidentification label, a camera device and a computer; when the reference scale is used, the reference scale is arranged in a detection area and is used for providing standard size scale information; the probe identification label is arranged on the upper surface of the probe and forms a fixed corresponding position relation with a detection electrode array; the camera device is used for acquiringvideo and image information of the detection probe and the detection area; and the computer carries out real-time processing on the image information acquired by the camera device, accurate positioning of the detection area and tracking of the moving track of the probe are achieved by using an image identification and optical flow tracking algorithm, and the electric impedance information of the area where the probe is positioned is synchronously acquired. The synchronous acquisition of the impedance information and position information of the EIS detection target area can be achieved, accurate body surface positioning information can be provided for the EIS detection, and the positioning information of the probe on the target area can be ensured to be consistent when the EIS detection target area is reviewed for a plurality of times.

The invention particularly relates to a dual-channel vibration measurement method and device based on optical fiber FP interference. The method comprises the following steps: carrying out the light splitting of a first optical signal to obtain a second optical signal and a third optical signal, enabling the third optical signal to pass through an optical fiber circulator to obtain a fourth optical signal, enabling the fourth optical signal to pass through a first object to form a fifth optical signal, enabling the second optical signal to pass through a second object to form a sixth optical signal, carrying out regional Hilbert conversion on a first electric signal and a second electric signal which are converted from the fifth optical signal and the sixth optical signal, and measuring phase information of an object to be measured through an arc tangent function after quotient; and solving the phase information to obtain the vibration amplitude and the vibration frequency. The device comprises a laser, an optical fiber coupler, an optical fiber circulator, a first optical lens, a second optical lens, a first photoelectric detector, a second photoelectric detector, a data acquisition card and an upper computer. According to the method, the efficiency is improved, and the displacement reconstruction error is reduced; and the device is low in power consumption, simple in structure, easy and convenient to operate, low in price and low in cost.

The invention relates to a hyperspectral remote sensing image satellite-ground collaborative atmospheric correction method and system and a storage medium. The method comprises the following steps: acquiring ground observation data, satellite observation data and hyperspectral remote sensing image data; carrying out ground observation data co-processing on the ground observation data, and carrying out quasi-synchronization on the ground observation data and the hyperspectral remote sensing image; performing satellite observation data co-processing on the hyperspectral remote sensing image data and the satellite observation data to generate atmospheric state parameter data of satellite observation; performing satellite-earth observation data co-processing on the co-processed ground observation data and the atmospheric state parameter data observed by the satellite to generate atmospheric observation data with approximately synchronous observation of the satellite and the ground; and performing atmospheric correction on the hyperspectral remote sensing image data based on the atmospheric observation data to generate atmospheric correction data. According to the invention, the precision and reliability of atmospheric parameter inversion can be improved, and the precision of atmospheric correction processing is improved. The method can be applied to the field of remote sensing image atmospheric correction.

The invention discloses a method and a system for displaying and processing field experimental data of a reactivity meter. The method comprises the following steps that: a local area network is accessed; reactivity meter application software is started on a host, and data sharing setting is started; reactivity meter application software client slave software is started on slaves, and data sharing with the host is established; and the plurality of slaves read the data acquired by the host. By means of the method, the host arranged in a master control room can obtain a current representing the neutron flux level of a reactor core or other reactor core state parameter signals from a reactivity meter device and achieve data sharing through the local area network; and a plurality of slaves arranged outside the master control room can acquire real-time data acquired by the host by adding a local area network, so that synchronous acquisition of the data is realized. According to the invention, more experimenters outside the master control room can obtain the experimental data of the reactor starting physical experimental process in real time through the plurality of slaves, and analyze and process the obtained data in real time outside the field, so that the experimental efficiency is improved.

The invention discloses an array type MEMS sensor SPI parallel data acquisition circuit and acquisition method, and aims to synchronously acquire data of a plurality of MEMS sensors in parallel and synchronously acquire a design scheme and a data acquisition time sequence of the plurality of MEMS sensors in parallel through an SPI communication bus. A signal driving and level switching circuit isdesigned; and a parallel data preprocessing and analyzing scheme is provided. Data of a plurality of MEMS sensors can be synchronously collected at the same time, and the device has the advantages ofbeing stable in communication, convenient to operate independently and the like.

The invention discloses a pulsed N*N array laser radar system. Including main controller, attitude measurement module, GPS receiver, external memory, display, pulse laser, collimating lens, beam splitter, optical fiber beam splitter, transmitting lens array, total reflection mirror, PIN high-speed photoelectric detection module, receiving lens, Fiber-coupled array, avalanche photodiode or APD array detector, transimpedance amplifier module, gain-adjustable amplifier module, high-speed comparison module, high-precision time interval measurement module, broadband amplifier module, analog-digital or AD conversion module, microcontroller array A and microcontroller array B. The pulse laser dot matrix of the present invention illuminates the target, and the emission power is fully utilized; the distance and intensity information are acquired synchronously instantly; the APD array detector composed of multiple APD area array chips improves the resolution; no scanning device significantly reduces the complexity of optical design; the use of optical fibers The coupling array effectively reduces ambient light and stray light outside the field of view from entering the APD array detector.

The invention discloses a spectrum sensing system capable of real-time calibration. The spectrum sensing system comprises a slit piece and a lighting light collection assembly, a long slit for passinglight of incident objects and a short slit for passing light of incident lighting are successively arranged on the slit piece vertically, and the long slit and the short slit have different verticallengths; an imaging objective lens is arranged at the front end of the long slit to form an object light incident light path; the lighting light collection assembly is located in the front of the short slit, and comprises a spectral collection head, an optical fiber, and a spectral diverging head, the spectral diverging head is arranged at the front end of the short slit to form a lighting light incident light path; the object light incident light path and the lighting light incident light path are provided with a shared optical splitting system and imaging sensor at the rear end of the slit piece, an object light imaging region corresponding to the object light incident light path and a lighting light imaging region corresponding to the lighting light incident light path are arranged on the imaging sensor, and the imaging sensor is further electrically connected with a main control board. The invention further discloses a spectral processing method, and automatic real-time calibrationof a light source is realized by sharing the same light path.

The invention discloses a grain aflatoxin and external defect high-flux sorting machine, and belongs to the field of sorting. A photoelectric box is installed on the rear portion of a main machine frame, a high-flux online removing device rotating forwards and backwards by 180 degrees is installed in the middle of the photoelectric box, a front material box and a rear material box are arranged below the high-flux online removing device, a horizontally-arranged high-speed belt set is arranged in front of the high-flux online removing device, a sliding groove, an adjustable hopper and a feeding box are sequentially arranged above the front end of the high-speed belt set from bottom to top, and the lower end of the adjustable hopper is fixedly connected with a vibration feeder; a toxic raw material fluorescence detection device is arranged right above the high-speed belt group; and a raw material external quality sorting device mounted in the photoelectric box is arranged outside an outlet behind the high-speed belt group. According to the grain aflatoxin and the external defect high-flux sorting machine, toxin-containing grains can be detected, damaged inferior grains and impurities can be synchronously removed, the sorting machine has the advantages which a traditional color sorter cannot be compared with, and the problem of high-flux real-time online sorting of the toxin-containing grains is solved.

The invention discloses a ship sub-assembly auxiliary assembly system based on augmented reality, and belongs to the technical field of auxiliary assembly systems. The ship sub-assembly auxiliary assembly system based on the augmented reality comprises a cloud storage module, an engineering data module, a virtual-real fusion module and a man-machine interaction module; the cloud storage module is used for converting a created plate model into an AB model through model conversion, then establishing an xml file and storing the xml file in a network disk; the engineering data module is used for storing real-time data and UI display data generated in a ship sub-assembly assembling process; the virtual-real fusion module is used for performing three-dimensional registration by using a Vuforia augmented reality software development kit; and the man-machine interaction module is used for programming the assembly operation in the ship sub-assembly assembling process. On one hand, the acquisition of assembly information by staff can be accelerated, on the other hand, the adjustment time of a plate assembly position in the assembly process can be shortened, and the ship sub-assembly assembling efficiency is greatly improved.

The invention discloses a gas sampling device, and a corresponding method of a rock stratum sample and a gas sample. The gas sampling device comprises a shell arranged on a drill rod in a sleeving mode, a gas collecting bag detachably arranged in the shell and a gas pump. The input end of the gas pump is communicated with a rock stratum sampler cavity, and the output end of the gas pump is communicated with the gas collecting bag. The gas sampling device is additionally arranged on existing drilling equipment, the rock stratum sample and the gas sample can be obtained at the same time, particularly after the two samples are collected at the same time, associated information is recorded and stored, a stable corresponding relation is established, and the situation that an analysis result isaffected due to wrong comparison of the rock stratum sample and the gas sample in the analysis process is avoided.