153 results about "Optical observation" patented technology

The invention relates to the technical field of spacecraft orbit control and space safety, and discloses a space debris orbit prediction and avoidance method, which comprises the following steps that: a ground computing center screens candidate targets and generates enhanced data packets for uploading; the spaceborne computer combines real-time navigation data to carry out geometric feature screening, and an instant high-risk target list is generated; controlling the star sensor to execute optical observation, and resolving an optical measurement relative orbit state by utilizing displacement superposition and Kalman filtering; selecting a high confidence coefficient or a conservative probability threshold according to the optical measurement state acquisition condition, and generating an avoidance instruction when the collision probability exceeds the limit; and the propulsion system responds to the instruction to execute avoidance, verifies the effect by confirming the semi-major axis variation and executes track recovery by selecting an aircraft. According to the method, the ground-air collaborative screening and shift superposition enhancement technology is adopted, the problems that the low-precision ephemeris false alarm rate is high and the detection capability of a satellite-borne sensor on a dark and weak target is insufficient are solved, and the accuracy of evasion decision making and the execution reliability are improved.

The invention provides a comprehensive photoelectric platform method and system for unmanned aerial vehicle detection, electronic equipment and a storage medium, and relates to the technical field of unmanned aerial vehicle detection and localization. Synchronously triggering a photoelectric platform to capture a suspicious airspace high-definition video stream and establishing a space-time corresponding database of the two; synchronizing each radio frequency receiving node by taking a high-precision atomic clock as a time reference, and processing multiple paths of signal data to obtain a time-aligned basic signal; basic signal radio frequency features are extracted and associated with equipment identification, a mapping relation between the basic signal radio frequency features and remote controller models is established, and a hardware feature library is constructed; and finally, in combination with the library identification result, the signal time difference and the optical data, correcting a multipath error by using particle filtering, predicting and updating the position of an operator, and realizing comprehensive detection and positioning of the unmanned aerial vehicle after iterative convergence, thereby realizing comprehensive detection and positioning of the unmanned aerial vehicle in combination with radio frequency detection and optical observation.

The invention discloses a sunshading and demisting system matched with an optical observation instrument. The sunshading and demisting system comprises two supports; the first framework, the second framework and the third framework are rotationally connected between the two brackets, are in semi-arc shapes and rotate in corresponding shaft holes of the brackets; a fourth framework, a fifth framework and a sixth framework which are the same are arranged at positions symmetrical to the first framework, the second framework and the third framework and are rotationally connected between the two brackets; the innermost first framework and the innermost fourth framework serve as active frameworks, and driving shafts are additionally arranged on the innermost first framework and the innermost fourth framework close to the root of the support and used for being in shaft connection with push rods of the stepping motors respectively; the two stepping motors are connected to the corresponding supports through shafts respectively. The two pieces of foldable sunshade cloth are respectively fixed on the frameworks on the two sides; the controller is electrically connected to the stepping motor and used for controlling the first framework and the fourth framework to rotate so as to unfold or fold the sunshade cloth; the air heater is electrically connected with the controller and used for supplying hot air into the skylight of the optical observation instrument through the air pipe.

This invention discloses a method, system, and fluorescent mixed-spray device for detecting and evaluating inclined roadways in open-pit mines. The method includes: performing fluorescent material spraying and optical observation in at least two boreholes along the target exploration line; determining the spatial connectivity of roadway cavities between boreholes based on the observation results; acquiring roadway profile area data perpendicular to the exploration line at each borehole location for roadway sections determined to be connected; calculating a quantitative index characterizing the degree of profile morphology change based on the profile area data; and adaptively selecting a corresponding volume calculation model to calculate the volume of the roadway cavity based on a comparison of the quantitative index with a preset threshold. This invention combines rapid qualitative assessment of spatial connectivity based on fluorescence with accurate adaptive volume calculation based on morphological variation coefficients, using a single integrated technical process to simultaneously solve the problems of high exploration costs and low calculation accuracy in traditional methods.

The invention discloses an optical observation correlation method based on mixed multi-hour ephemeris, and belongs to the technical field of space target monitoring. Aiming at the problem that the correlation performance is reduced when the ephemeris quality is unstable due to dependence on a single ephemeris in the prior art, the method comprises the following steps of: firstly, constructing a mixed set containing multi-source ephemeris; secondly, intelligently selecting a leading ephemeris and a lagging ephemeris which are closest in time for each observation arc section and each target; then, the two ephemeris are used for association respectively, and union sets of results are obtained, so that an initial association set is expanded; and for the generated fuzzy correlation, performing primary disambiguation based on the comprehensive confidence, and performing secondary accurate disambiguation on the residual fuzzy condition by comparing the weighted angular distance residual error root-mean-square value of the whole arc section. According to the method, the dependence on single-term and single-source ephemeris precision is effectively reduced, available information is fully utilized, and the correlation robustness and accuracy of optical observation data under the complex ephemeris condition are remarkably improved.

The invention discloses a single-particle electrode material rate capability characterization method based on optical imaging. Comprising the following steps: constructing an electrochemical test configuration allowing optical observation, executing constant-current charging and discharging under a controlled magnification, synchronously acquiring optical data, defining characterization parameters related to the magnification based on the optical data, and evaluating the magnification performance of the single-particle electrode material. According to the method, the real-time response of the particles in the charging and discharging process is obtained through optical imaging, quantitative analysis of the magnification response under the single particle scale is achieved, the problem of particle behavior averaging in a macroscopic test is solved, and the accuracy and the resolution capacity of material performance evaluation are improved. The method is easy and convenient to operate, high in testing efficiency and suitable for high-throughput and high-spatial-resolution characterization of the rate performance of the electrode material.

The invention discloses a crystal growth synthesis furnace which comprises a composite furnace body, a heating and temperature control system, an optical observation window assembly and a growth monitoring and control system. A furnace chamber of the composite furnace body is of a multi-layer gradient composite lining structure composed of a pressure-bearing water-cooled jacket, a carbon fiber reinforced silicon carbide composite material layer, a foam silicon carbide ceramic heat insulation layer and high-purity graphite paper. The heating and temperature control system adopts a distributed design and comprises a main heater, an upper auxiliary heating ring, a lower auxiliary heating disc and a lateral compensation heater. The optical observation window assembly is fixed to the center of the upper furnace cover and matched with the high-speed imaging unit to achieve in-situ monitoring of the growth process. According to the crystal growth synthesis furnace provided by the invention, accurate regulation and control of a three-dimensional temperature field and real-time visual monitoring of a growth interface in a silicon carbide crystal growth process are realized, and the crystal quality, the growth success rate and the process repeatability are remarkably improved.

A system (100) for treating stress urinary incontinence in a patient includes a cystoscope (102) including a probe assembly (104) with a shaft (110) having a tip, an optical element (112) for capturing images, a display (118) or optical viewer for presenting the images; a rotatable sheath (400) with a shaft and at least one lumen configured to receive the cystoscope shaft, the sheath being rotatable about the cystoscope shaft: and a treatment needle (500) insertable through the sheath, the needle configured to inject a treatment agent into tissue, wherein the treatment agent comprises a non-animal stabilized hyaluronic acid.

The present application relates to a kind of calibration device and calibration method of shock wave overpressure optical measurement system based on shock tube, it is related to the field of shock wave overpressure test, wherein the calibration device includes: standard shock tube, visible measuring unit;Visible measuring unit includes: transparent quartz tube, first piezoelectric sensor, second piezoelectric sensor, third piezoelectric sensor;Transparent quartz tube one end opening, the other end is closed and is arranged;In the direction from the opening end of transparent quartz tube to closed end, first piezoelectric sensor and second piezoelectric sensor have interval and are embedded in the side wall of transparent quartz tube;Third piezoelectric sensor is embedded in the center of the closed end of transparent quartz tube.This scheme can simply, reliably produce theoretical solvable or accurately measured impact wave overpressure of various shock waves propagation process, can accurately and reliably cross-verify and error determination to the impact wave overpressure obtained in optical measurement process, can accurately calibrate the system error of optical observation wave front propagation process.

The invention relates to an imaging device (10; 110), in particular an endoscope device, for stereoscopic image generation, wherein the imaging device (10; 110) has a shaft (12; 112) that defines a longitudinal axis (14; 114) and at least one optical viewing direction unit (58, 158) for generating a viewing angle (18) of greater than 0° with respect to the longitudinal axis (14; 114).It is proposed that the imaging device (10; 110) has a periscope unit (20; 120) for combining at least two beam paths (22, 24; 122, 124) for use in stereoscopic image generation, wherein the viewing direction unit (58, 158) is rotationally fixed with respect to the shaft (12; 112) and the periscope unit (20; 120) is arranged so as to be rotatable relative to the shaft (12; 112) about the longitudinal axis (14; 114).

The invention discloses a free forging online size detection and feedback method and system based on visual perception, and relates to the technical field of free forging machining detection, and the method comprises the steps: obtaining first image data, thermal field data and optical observation data corresponding to a target forging; generating offset data representing an expected displacement vector of each pixel point in the first image data according to a mapping relation between the thermal field data and a preset refractive index; calculating optical observation residual data according to the optical observation data and the offset data; whether the mean square value of the optical observation residual data exceeds a preset mean square threshold value or not is judged, and if yes, the refractive index mapping relation is corrected, and offset data are regenerated; performing reverse correction on the first image data according to the offset data to obtain second image data; extracting forge piece size data of the target forge piece according to the second image data and judging whether a feedback instruction is generated or not; the method has the beneficial effect that the optical measurement precision in a high-temperature free forging machining environment can be improved.

The invention discloses a device and a method for evaluating the color of a photochromic material. The device comprises a movable sample fixing frame for controlling the distance from a sample to a light source; the illumination light source is used for controlling the illumination brightness and angle; and the movable optical observation equipment is used for recording the color changing and fading processes of the photochromic material at different distances. According to the invention, the color development characteristics of the photochromic material under the conditions of light sources with different color temperatures and illumination with different intensities can be tested without the interference of the excitation light source of the photochromic material.

This invention relates to the field of agricultural monitoring and discloses a method and system for reconstructing NDVI time-series data. The method includes: collecting Sentinel-1 SAR data, Sentinel-2 optical data, and initial NDVI time-series data of a target area; performing time node matching on the data to obtain an initial dataset; inputting the initial dataset into a trained Transformer-based time-series data reconstruction network, performing deep coupling between the Sentinel-1 SAR data and the Sentinel-2 optical data, and mapping the coupling result to the initial NDVI time-series data to reconstruct the NDVI time-series data. This invention enhances the learning between SAR and optical data, constructs the relationship between complete SAR data and missing optical data, and maps the contextual information of the coupling result to the initial NDVI time-series data to reconstruct the NDVI time-series data, filling the gaps in optical observation data and obtaining high-precision and complete NDVI time-series data.

The invention discloses a satellite position real-time resolving platform and method based on multi-source data fusion, and relates to the technical field of satellite position resolving, the platform comprises a multi-source data access and time reference module, a real-time resolving engine module, a rendering and interaction module and an event bus and auditing module, the multi-source data access and time reference module carries out timestamp labeling and quality rating on two rows of element data, radar observation data, optical observation data and global navigation satellite system broadcast data, and the real-time resolving engine module generates a resolving result containing confidence coefficient parameters and check metadata based on an incremental fusion algorithm. According to the method, unified fusion of multi-source data and verifiability of the resolving process are achieved, and the precision and reliability of satellite position resolving are improved.

The application discloses a kind of plasma etching equipment and observation window protection system, belong to semiconductor manufacturing equipment technical field.The system includes reaction cavity, gas inlet pipeline, optical observation window and uniform gas structure, by innovatively using uniform gas structure, with uniform flow and radio frequency suppression function, under the guarantee gas flow function, effectively block plasma into pipeline, and by optical observation window is set at the end of gas inlet pipeline, realize light gas same road, to directly utilize process gas and pass through the inner surface of window to form protection gas curtain, effectively prevent deposit to adhere to the inner surface of window.The application fundamentally protects observation window and upstream optical path component, completely solves the end point detection distortion problem caused by window pollution in traditional scheme, and in preventing process byproduct deposition on optical observation window, without introducing extraneous purge gas, avoids process formulation disturbance, significantly improves end point detection accuracy and equipment utilization.

The application provides an optical observation equipment packaging box, which comprises a box body and a box cover. The opening of the box body and the opening of the box cover can be relatively buckled to form a containing packaging space for the optical observation equipment. The first end of the box body and the first end of the box cover can be connected in a rotatable manner to realize switching between a packaging state and a supporting state of the packaging box. When the packaging box is in the packaging state, the box body and the box cover are buckled to form the containing packaging space. When the packaging box is in the supporting state, the first end face of the box body is supported below the first end face of the box cover, and the second end face of the box cover is provided with a holder seat which is used for detachable connection with the optical observation equipment. The packaging box can form a packaging containing protection for the optical observation equipment and effectively reduce external impact. Meanwhile, the packaging box can be used as a supporting base for the optical observation equipment according to requirements, the packaging box can be used for two purposes, the weight and volume of the optical observation equipment during transfer and carrying are reduced, and the installation is quick and simple.

The invention provides an observability analysis method and device for deep space exploration optical autonomous navigation, and the method comprises the following steps: constructing an orbit dynamics model and an optical observation model according to the measurement information obtained by a deep space probe; constructing an optical autonomous navigation system model according to the orbit dynamics model and the optical observation model; observability parameters of the deep space exploration optical autonomous navigation system are given according to the optical autonomous navigation system model; constructing an observability characterization model of the autonomous navigation system; carrying out dimensionality reduction characterization on observability of the deep space exploration optical autonomous navigation system; therefore, an observability criterion is obtained; and realizing the observability autonomous determination of the deep space exploration optical autonomous navigation system according to the observability criterion. By analyzing key factors of complete representation of the observability of the system, judgment conditions of the observability of the system are deduced, and the observability quantitative expression method which is universal, simple and easy to autonomously realize on a satellite is provided.

The invention relates to a personal assistant system. Such a personal assistant system has: - at least one laser beam scanner (220) for projecting a projection image (230) onto a projection surface (210), - at least an optical observation device (111) and - a computing unit (52), wherein at least one optical observation device (111) is configured to acquire real-time information from the projection surface (210), wherein the computing unit (52) is configured to evaluate the real-time information, and wherein the computer unit (52) is configured to cause the at least one laser beam scanner (220) to perform a projection adjustment of the projection image (230) on the projection surface (210) in real time based on the evaluation. Furthermore, the invention relates to a vehicle with such a personal assistant system.

The application discloses an iridium oxide modified fluorine-doped tin oxide electrode and a preparation method and application thereof. The electrode comprises a light-transmitting fluorine-doped tin oxide conductive glass substrate and an in-situ attached iridium oxide nano-modified layer. The preparation method comprises the following steps: preparation and aging of a precursor solution, alternating current electrochemical deposition, annealing and cleaning, and laser patterning treatment. The application further discloses a cell impedance sensor organ chip system comprising the electrode and application of the system in in-vitro drug screening. The application utilizes the low cost and light-transmitting property of the fluorine-doped tin oxide and the excellent charge injection capacity of the alternating current deposited iridium oxide nano layer to greatly reduce the interface impedance. The scheme meets the in-situ optical observation, realizes the high-sensitivity biological impedance monitoring comparable to gold electrodes, effectively solves the problems of high cost and complex process of the existing organ chip electrode, and is very suitable for popularization and application as a disposable high-throughput consumable.

The invention belongs to the field of aero-engine fuel injection technology research, and particularly relates to a fuel jet combustion experiment system and method. The system comprises an experiment cabin, an optical observation system, an ammonia fuel jet mechanism and an ignition device, a visual observation window is arranged on the side wall of the experiment cabin body; the ammonia fuel jet mechanism comprises an ammonia supply mechanism and a transparent nozzle arranged in the experiment cabin body which are connected with each other; the optical observation system comprises a point light source, a slit, a concave lens, a filter and a high-speed camera which are sequentially arranged along an observation light path; a nozzle of the transparent nozzle and the visual observation window are arranged on the observation light path between the concave lens and the high-speed camera; the moving mechanism I can drive the filter to leave the observation light path, and the moving mechanism II drives the high-speed camera to leave the observation light path to directly shoot the transparent nozzle. The multi-dimensional research on the ammonia jet flow pattern, the flash boiling effect, the atomization characteristic and the combustion flame group distribution can be completed in sequence by one set of system.

The utility model relates to a kind of tunnel construction dust detection devices including sampling gas path, dust detector based on light signal and signal transmitter;Sampling gas path, including air inlet pipeline, optical observation cavity and air outlet pipeline;Dust detector, including the light source of setting at the optical observation cavity of sampling gas path, light path and sampling gas path are orthogonal;Area array photoelectric detector is connected with transmitter electric signal;Signal transmitter, including radio frequency antenna, for the signal of area array photoelectric detector received is sent to the receiving end of collected data.The tunnel construction dust detection device provided by the utility model realizes the real-time dust detection of anti-interference by sealing, independent sampling gas path and independent, isolated light signal path relative to sampling gas path.Optimized scheme, detection laser is shaped into narrow light spot, adopts double-wavelength detection, cooperates with impact type pre-separator, realizes the dust detection resolution improvement of different dimensions such as detection time, detection granularity.

An occlusion-capable viewing device includes an imaging lens, a collimating lens, and a virtual display module, and between the imaging lens and the collimating lens, an image inverter, and a spatial light modulator. The imaging lens projects a first inverted image of a scene on to an entrance surface of the image inverter. The image inverter rotates the first inverted image to yield a first upright image. The spatial light modulator attenuates a first image-region of the first upright image to produce a modulated optical beam. The virtual display module includes a display device and a light combiner, which combines (i) the collimated optical beam and (ii) illumination emitted by the display device to yield an occluded image.

1. Name of the product in this design: Binocular Infrared Thermal Imaging Telescope. 2. Application of this design: This design is a binocular optical observation device that can achieve long-distance observation and positioning in all weather conditions. It is suitable for search and rescue, outdoor exploration, border patrol and security monitoring and other scenarios. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention provides a pollution monitoring system for river water flow environment treatment, and relates to the technical field of river water pollution monitoring, the pollution monitoring system comprises a monitor, the monitor comprises a monitoring shell, the inner side of the monitoring shell is provided with a Venturi tube structure, and the Venturi tube structure is divided into an inlet section, a contraction section and a diffusion section; optical observation windows are installed on the two side walls of the contraction and contraction part, an infrared light emitter and an infrared light receiver which correspond to each other are installed on the two sides in the equipment installation cavity respectively, a rotating shaft is arranged on the inner side of the Venturi tube structure, and a flow gathering cover is installed on the outer side of the monitoring shell; the two ends of the rotating shaft are connected with the monitoring shell and the flow gathering cover through fixing plates respectively, a spiral impeller is installed at the end, close to the flow gathering cover, of the rotating shaft, a generator is installed at the other end of the rotating shaft, and a scraper assembly is installed on the rotating shaft. According to the invention, a one-shaft multi-purpose design is adopted, power generation can be carried out, an optical observation window can be cleaned by using the scraper assembly, and the design of dependence on complex pneumatic elements and electromagnetic valves in a traditional system is avoided.

This invention discloses a target positioning method, apparatus, device, and medium for optical observation. The target positioning method for optical observation collects and caches the relative distance and azimuth of the target using optical observation equipment. Upon detecting a target locking signal triggered by the type or usage of the carrying equipment, the data is immediately frozen and transmitted wirelessly to a mobile terminal. The mobile terminal combines the received data with its own positioning module's current location, calculates the target's geographic coordinates using a geodetic model, marks the location on a map interface, and generates a navigation path. This achieves automatic target location locking and geographic mapping after firing, effectively solving the problems of difficulty and low efficiency caused by the large difference between thermal imaging field of view and the actual landscape, requiring manual GPS repositioning in existing technologies. It significantly improves the accuracy and convenience of target search after long-range nighttime firing.

The invention belongs to the technical field of two-dimensional material surface positioning, and particularly discloses a two-dimensional material microcell precise positioning method based on a mask coordinate method.The method comprises the steps that an auxiliary positioning pattern on a mask is transferred to a substrate through photoetching and coating processes, forming an auxiliary positioning mark formed by depositing a metal material on the substrate; a prepared two-dimensional material sample is placed on the substrate, and optical observation equipment is used for observing and recording mark information, corresponding to the auxiliary positioning mark, of a to-be-measured micro-area on the two-dimensional material sample; and transferring the substrate on which the two-dimensional material sample is placed to a sample table of test equipment, and moving the sample table to the micro-area to be tested according to the mark information to be opposite to a test assembly on the test equipment. According to the invention, the problem that the two-dimensional material micro-area is difficult to position by adopting macroscopic test equipment can be solved, and the positioning precision and efficiency in the two-dimensional material micro-area positioning test process are improved.

This invention discloses a visualization measurement method for solid-liquid phase change of electrically controlled solid propellants based on image recognition. The method is implemented using an electrode clamping device and includes synchronous control of image acquisition and laser illumination, background subtraction combined with adaptive threshold binarization, application of regional constraints and morphological image processing, extraction and tracking of phase change interface features, and statistical analysis of target parameters. This method enables continuous and intuitive optical observation of the solid-liquid phase change process, achieving high-fidelity visualization of the phase change process before combustion. Through the synergistic effect of laser directional illumination and image recognition algorithms, it effectively distinguishes the solid region, liquid molten region, and suspended particle region of the propellant. Candidate motion regions are segmented using background subtraction combined with adaptive threshold binarization, reducing light interference caused by laser illumination. This achieves effective identification and interface extraction of the main solid-liquid phase change region and weak phase change region, improving the accuracy of phase change morphology characterization.

The invention belongs to the technical field of automobile manufacturing and intelligent detection, and particularly relates to an IMT (in-mold transfer) quality monitoring control system suitable for automobile interiors, which comprises a mold body integrated with a distributed sensing array, a multi-mode online sensing module, an edge intelligent processing unit and a central coordination controller, through three-source fusion of high-speed optical observation, embedded physical sensing and thin film impedance monitoring and in combination with space-time alignment and causal modeling, real-time sensing and self-adaptive regulation and control of key state variables are realized. Through closed-loop linkage of state feedback and pre-charging calibration, the power device is prevented from bearing overshoot current in a cold start stage; a distributed timestamp alignment mechanism is utilized to maintain the multi-node event sequence consistency under the condition of no global clock source; full-link isolation processing of sensitive data in a trusted execution environment is realized, and plaintext is prevented from being leaked to a universal operating system; and it is ensured that the fault diagnosis module can still complete anomaly recognition based on the local historical mode during communication interruption.