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Beidou navigation satellite observation data purification method under complex electromagnetic background
ActiveCN119291736Aimprove accuracyMeet the precision requirementsSatellite radio beaconingSatellite observationElectromagnetic interference
The invention relates to the technical field of signal denoising, in particular to a Beidou navigation satellite observation data purification method under a complex electromagnetic background. The method comprises the following steps: acquiring satellite observation station position data and satellite position data; satellite signal acquisition is carried out on the satellite observation stations according to the satellite observation station position data and the satellite position data, and satellite observation station receiving signals are obtained; multi-angle initial signal discretization is carried out on satellite observation station receiving signals, and an initial satellite observation comprehensive signal discrete diagram is generated. According to the invention, through systematic interference identification, signal purification, multi-angle processing and automatic precision optimization, the identification capability and filtering efficiency of interference signals are improved, so that the problem of electromagnetic interference to Beidou navigation satellite signals under a complex electromagnetic background is weakened, the flexibility of site selection of the Beidou navigation satellite continuous observation station is improved, and the accuracy of site selection of the Beidou navigation satellite continuous observation station is improved. And the precision and stability of positioning, navigation and time service are improved.
Owner:BUREAU OF HYDROLOGY CHANGJIANG WATER RESOURCES COMMISSION
Automatic flexible butt joint oil extraction system and method for transformer
ActiveCN119198207AReduce security risksRealize self-lockingProgramme-controlled manipulatorTransformers/inductances coolingControl engineeringProcess engineering
The invention belongs to the technical field of power robots. The transformer automatic flexible butt joint oil taking system comprises an oil taking box and an oil taking robot, the oil taking robot comprises an oil taking robot chassis, an automatic butt joint device and an oil sample extracting device, and the automatic butt joint device and the oil sample extracting device are installed on the oil taking robot chassis; the oil taking tank comprises a flexible butt joint oil taking opening fixed to an oil taking tank body, a fixed rod and a movable rod assembly, the automatic butt joint device comprises a guiding butt joint mechanism and a flexible butt joint oil taking mechanism, and the guiding butt joint mechanism is used for being matched with the fixed rod and the movable rod assembly for guiding butt joint. The flexible butt joint oil taking mechanism is used for being in flexible butt joint with the flexible butt joint oil taking opening. Manual operation is replaced through automatic cooperation of the oil taking robot and the oil taking tank, the automatic docking device is applied, the operation process is optimized, the operation and maintenance efficiency and safety of the electric power system are improved, and the risk of manual operation is reduced.
Owner:STATE GRID INTELLIGENCE TECHNOLOGY CO LTD
Non-vision field imaging detection method and system of fusion event camera
PendingCN119579644Aachieve observationquick discoveryImage enhancementImage analysisImage detectionInformation integration
The invention discloses a non-vision field imaging detection method and system fused with an event camera, and the method comprises the following steps: enabling the event camera and a standard optical camera on a detection prototype to be aligned with a ground region of a corner, forming a video file based on a tiny pixel color difference amplification technology, and carrying out the calculation and analysis of the video file; processing the video file by using an image matching algorithm, and eliminating noise by using Kalman filtering; establishing a linear system, and then obtaining a reconstructed image by using a forward transmission light intensity function; performing Euler video amplification processing on the reconstructed image, wherein the Euler video amplification comprises motion estimation, spatial decomposition, time filtering and signal enhancement; detecting the detection area, and mapping the motion track of the target hidden behind the corner to a two-dimensional plane; the system comprises a simulation scene construction module, a three-dimensional point cloud set construction module and an information integration module. According to the invention, a micro motion algorithm and optical flow calculation are popularized to non-vision field imaging, so that the optical imaging technology can act on a vision field range and also can act on a non-vision field range.
Owner:杭州智元研究院有限公司
All-solid-state battery reaction chamber for in-situ Raman test
ActiveCN222287276UImprove flatnessStrong penetrating powerRaman scatteringSecondary cells servicing/maintenanceAll solid stateSolid state electrolyte
The utility model relates to an all-solid-state battery reaction chamber for an in-situ Raman test. The problem that an existing all-solid-state battery detection device is complex in structure is solved. According to the technical scheme, the all-solid-state battery reaction chamber comprises a reaction chamber shell, a battery containing chamber is formed in the reaction chamber shell, and all-solid-state batteries are filled in the battery containing chamber; an observation window is arranged at the top of the battery accommodating chamber; charge-discharge connecting assemblies are arranged on two sides of the reaction chamber shell, and one end, far away from the reaction chamber shell, of each charge-discharge connecting assembly is connected with charge-discharge equipment. According to the utility model, the all-solid-state battery is placed in the battery accommodating chamber, a Raman light path penetrates through the observation window and is focused on the all-solid-state battery, and meanwhile, a Raman system collects Raman scattering light and the Raman scattering light is recorded by a spectrograph; the device is simple in structure and convenient to detect; an observation window is designed at the top of the reaction chamber shell, so that the reaction and change of the interface position between the solid electrolyte and the positive and negative electrodes in the battery can be observed, and the detection range is large.
Owner:XIAN TECH UNIV
Adjustable periodontal endoscope sleeve and adjustable periodontal endoscope
The utility model relates to an adjustable periodontal endoscope sleeve which comprises a sleeve, a holding part and an adjusting mechanism. The sleeve comprises a working channel, and an observation position is arranged at an outlet of the working channel. And the observation mirror observes the tissue at the observation position through the working channel. The adjusting mechanism is connected with the sleeve, and the observation direction of the observation position of the sleeve is changed along with adjustment of the adjusting mechanism. In the using process, the position and direction of the holding part do not need to be adjusted, when the observation angle needs to be adjusted, the adjusting mechanism is adjusted, the observation direction of the observation position is adjusted, it can be guaranteed that the observation mirror faces the tooth side face all the time for effective observation, periodontal observation in all directions is achieved, and the application range is very wide. According to the adjustable periodontal endoscope, due to the fact that the adjustable periodontal endoscope sleeve is arranged, periodontal observation in all directions can be achieved under the state that the holding part is not moved in the clinical use process, and the adjustable periodontal endoscope is very convenient to use.
Owner:GUANGZHOU T K MEDICAL INSTR
Single laser modulation small magneto-optical trap
ActiveCN119132688Alow costachieve preparationRadiation/particle handlingThermal dilatationMagneto-optical trap
A single laser modulation small magneto-optical trap comprises a laser device, and main laser emitted by the laser device forms a first cooling light beam, a second cooling light beam, a third cooling light beam and a feedback light beam through beam splitting and reflection; the cooling light beams form six magneto-optical trap light paths, wherein every two of the six light beams are oppositely emitted and intersect at one point in the vacuum cavity, and a magneto-optical trap is formed under the action of a gradient static magnetic field formed by the first magnetic field coil and the second magnetic field coil. The feedback light beam penetrates through the rubidium steam chamber and is converted into re-pumping light through the photoelectric probe, the modem, the frequency locking controller and the electro-optical modulator in sequence, and the laser combines the re-pumping light and generated main laser. The device is low in complexity of a laser light path, low in cost and high in precision; the vacuum glass cavity is low in scattering, high in transparency, low in thermal expansion coefficient and good in vacuum sealing performance, good optical performance and stability can be provided, and meanwhile the influence of magnetic field interference and thermal expansion is reduced.
Owner:ZHEJIANG UNIV OF TECH
A promoter of lgals3bpb gene and its application in constructing zebrafish model
ActiveCN114591962Bachieve observationRealize functionClimate change adaptationAnimals/human peptidesBiotechnologyNeural cell
The present invention relates to the field of nerve cell labeling methods and related animal model technologies, and specifically to a promoter of a lgals3bpb gene and its application in constructing a zebrafish model. The application of the promoter of the lgals3bpb gene in constructing a zebrafish model comprises the following steps performed in sequence: obtaining the promoter of the lgals3bpb gene through a PCR reaction; constructing an expression vector regulated by the promoter of the lgals3bpb gene; transferring the expression vector into zebrafish fertilized eggs, and obtaining a stable genetically modified zebrafish strain through culture, screening and multi-generation hybridization. This technical solution can solve the technical problem of the prior art due to the lack of a zebrafish animal model capable of locating and operating microglia, and creates conditions for studying microglia, conducting disease mechanism research, drug screening and drug efficacy testing, and has good application prospects.
Owner:CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACAD OF SCI
Liquid bridge optical observation system and method for observing internal temperature field of fluid by using same
InactiveCN119085884ASimple structural designReasonable structural designHydrodynamic testingThermometers using physical/chemical changesOptical ModuleLight beam
The invention provides a liquid bridge optical observation system and a method for observing an internal temperature field of fluid by using the same. The observation system comprises a liquid bridge model, an optical module and an acquisition module, the liquid bridge model is a fluid model and is filled with a liquid experiment working medium; the optical module is arranged on the side of the fluid model in a matched mode and comprises a laser, a first reflective mirror, a second reflective mirror, a first semi-transparent and semi-reflective mirror and a second semi-transparent and semi-reflective mirror. And the acquisition module is arranged on an output light path of the second semi-transparent and semi-reflective mirror in a matched manner and is used for recording a light beam output by the second semi-transparent and semi-reflective mirror. Based on quantitative observation of the internal temperature field of the liquid bridge model, quantitative observation of the internal temperature field of the fluid can be effectively realized through optical non-contact measurement.
Owner:INST OF MECHANICS CHINESE ACAD OF SCI
Pressure head calibration device and system
ActiveCN222125028UConvenient angle parametersGet angle parameters convenientlyUsing optical meansInvestigating material hardnessMechanical engineeringPhysics
The utility model provides a pressure head calibration device, and belongs to the technical field of detection devices. The sample box comprises a sample box body and an adjusting assembly arranged in the sample box body. The adjusting assembly comprises a plurality of fixing devices used for fixing the pressing heads of different sizes, and the fixing devices can ascend and descend in the sample box. According to the utility model, the plurality of liftable fixing devices are arranged in the sample box, so that the pressure heads with different sizes can be fixed and lifted, the pressure heads with different sizes can be detected at the same time, and the detection efficiency is greatly improved.
Owner:NCS TESTING TECHNOLOGY CO LTD +1
A cell observation device with a dual camera module
ActiveCN224341440Uachieve observationachieve placementBioreactor/fermenter combinationsBiological substance pretreatmentsComputer graphics (images)Radiology
The utility model discloses a cell observation equipment with double camera module, including observation platform, first camera and second camera, and observation platform has a transparent observation area, and the observation area is used for placing the object to be observed, and the first camera is set below the observation area, is used for gathering the image information of observation area, to obtain the position of the object to be observed, and the second camera is set below the observation area, and the second camera is closer to the observation platform than the first camera, and the second camera can move to the just below the object to be observed according to the position of the object to be observed, to utilize the second camera to observe the object to be observed. The utility model discloses technical scheme has improved the alignment efficiency and alignment accuracy.
Owner:XINHUIKANG MEDICAL DEVICES (SHANGHAI) CO LTD
Height detection device for automobile parts
ActiveCN222364513Ureasonable designEasy to detectMechanical thickness measurementsStructural engineeringMechanical engineering
The utility model provides a height detection device for automobile parts, which comprises a detection outer plate, the inner side surface of the detection outer plate is fixedly connected with an externally-expanded L-shaped plate, a detection mechanism is arranged on the surface of the detection outer plate below the externally-expanded L-shaped plate, a mushroom groove is arranged on the surface of the detection outer plate between the L-shaped plate and the detection mechanism, and the mushroom groove is connected with the detection outer plate. And a part pushing block is movably connected between the L-shaped plate and the detection mechanism, and an embedding block is fixedly connected to the inner side surface of the part pushing block, so that the problem that an installed automobile part cannot be installed is solved. Height detection can only be carried out after disassembly, and the maximum width of the automobile part cannot be detected in the detection process.
Owner:SHAANXI TIANJINCHENG CAR RENTAL CO LTD
A multi-axis pulse spatial trajectory reconstruction method and terminal
The present invention discloses a multi-axis pulse spatial trajectory reconstruction method and terminal, which collects pulse axis signal data and servo axis signal data; uses the servo axis signal data as a reference to convert the pulse axis signal data into the correlation data of time and relative displacement; samples and synchronizes all converted pulse axis signal data at the same time point; resamples the converted pulse axis signal data at equal intervals according to a preset sampling frequency; calculates the combined speed and combined acceleration according to the sampling results and draws a curve. The present invention converts the pulse axis signal data into the correlation data of time and relative displacement with reference to the display mode of the servo axis signal data, and samples and synchronizes the converted multiple pulse axis signal data at the same time point, and summarizes the multiple pulse axis data on the same time scale, so as to realize the observation of the actual position and the corresponding trajectory when the pulse axis and the bus servo axis are jointly controlled.
Owner:FUZHOU WECON ELECTRONICS TECH
Aluminum alloy frame cutting device with personnel protection function and using method
InactiveCN119501178Aprevent splashStrong penetrating powerShearing machinesLarge fixed membersVehicle frameElectric machinery
The invention discloses an aluminum alloy frame cutting device with a personnel protection function and a using method, and relates to the technical field of cutting devices.The aluminum alloy frame cutting device comprises a first plate body, a frame body and a first guide rod, a second guide rod is movably installed on the outer side of the first guide rod, and a second ring body is movably installed on the outer side of the second guide rod; a third hydraulic telescopic unit is installed at the bottom of the second ring body, a third piston rod is installed at the output end of the third hydraulic telescopic unit, a first round block is installed at one end of the third piston rod, a third ring body is movably installed on the outer side of the first round block, a sputtering blocking mechanism is arranged at the bottom of the third ring body, and a lead screw is installed at the output end of the first motor. A cutting mechanism is arranged on the outer side of the lead screw. By arranging the sputtering blocking mechanism, sputtering chips generated by cutting can be blocked through the transparent plate when the vehicle frame is cut, so that a person can conveniently penetrate through a cut part at a short distance through the transparent plate, and meanwhile, the chips cannot be sputtered to the face of the person.
Owner:JIANGSU FUYEDA INTELLIGENT TECHNOLOGY CO LTD
Main shaft straightness detection tool
ActiveCN222460566Ueasy to operateImprove detection efficiencyAngles/taper measurementsStructural engineeringMechanical engineering
Owner:SHANGHAI ZHENGSHANG MEDICAL EQUIP CO LTD
Electrode plate activation lithium removal tank and device
The utility model discloses a polar plate activation lithium removal tank and device, and relates to the technical field of polar plate preparation devices, the polar plate activation lithium removal tank and device comprise a tank body, the tank body is internally provided with a cavity capable of enabling a polar plate to be vertically placed, and the width of the cavity is matched with the width of a single polar plate; a plurality of liquid inlets are formed in one end of the cavity in the length direction of the cavity, openings of the liquid inlets face the other end of the cavity, and a plurality of liquid outlets are formed in the other end of the cavity. According to the polar plate activation lithium removal tank and the polar plate activation lithium removal device, the polar plate can be directly inserted into the cavity, the polar plate inserted into the cavity can be vertically placed, and the liquid inlet and the liquid outlet in the cavity respectively face the end side of the polar plate in the thickness direction; the oxidizing agent flowing in the chamber can fully scour the planes on the two sides of the polar plate, so that lithium ions of the polar plate are removed.
Owner:GUANGDONG BRUNP RECYCLING TECH CO LTD +1
Static frequency converter current loop feedforward control method and system
The invention discloses a static frequency converter current loop feedforward control method and system, and the method comprises the steps: firstly obtaining a real-time phase angle and an actual line voltage effective value of an actual AC line voltage, and building an AC side line voltage through the phase angle and the line voltage effective value; calculating each commutation time of the bridge; and determining a machine bridge direct current voltage instantaneous value according to the working interval by combining the commutation time, and directly superposing the machine bridge direct current voltage instantaneous value to the output end of a current loop regulator by taking the machine bridge direct current voltage instantaneous value as a current control loop feed-forward quantity. According to the technical scheme, the machine bridge direct-current voltage instantaneous value is reconstructed only through the alternating-current voltage, the alternating-current current signal and the system internal control quantity, and the machine bridge direct-current voltage instantaneous value is directly fed forward and superposed to the output end of the current controller; the constructed machine bridge direct-current voltage instantaneous value is not influenced by network bridge direct-current voltage and commutation peak voltage, filtering processing is not needed before the machine bridge direct-current voltage instantaneous value participates in feed-forward control, observation and feed-forward compensation of loop current loop disturbance quantity are achieved, and loop current fluctuation can be well restrained.
Owner:JIANGSU SHAHE PUMPED STORAGE POWER GENERATING CO LTD +1
Imaging device
ActiveCN224626717UExpand the scope of observationReduce shooting blind spots
This application discloses a camera device including a rotating assembly. The rotating assembly includes a second rotating frame, which has an end plate, a first support arm, and a second support arm. The end plate extends along a direction parallel to a fourth axis. The first and second support arms are respectively connected to both sides of the end plate and extend along a direction parallel to a third axis. The first support arm has a first mounting hole, and the second support arm has a second mounting hole. The axis of the first mounting hole coincides with the axis of the second mounting hole. The technical solution provided by this application can achieve comprehensive observation of a large scene.
Owner:GUANGZHOU KINDLINK INTELLIGENT TECHNOLOGY CO LTD
An infrared physiotherapy incubator used after finger replantation
An infrared therapy incubator used after finger replantation surgery includes a transparent box body, characterized in that an infrared heating structure is arranged at the upper and lower corners of the box body; the front side of the box body is arranged as a door structure composed of two rotatable plates, and a wrist opening is arranged in the middle after the two rotatable plates are combined; a removable hand placement plate is arranged in the middle of the box body, and a hand fixing structure is arranged on the hand placement plate; a temperature control structure that controls opening and closing according to a set temperature range is also arranged, and a power supply or a power connection structure is also arranged on the box body. This arrangement can treat patients according to the temperature required by the patients, and because the removable placement plate is arranged, the position of the hands can be fixed very conveniently before entering the box body, and then the hands can be kept warm after entering the box body, and the whole operation process is easy to achieve; the wrist opening structure can facilitate the fixation of the hand position; an opaque insulation cover that is easy to disassemble is arranged outside the box body. The incubator of this concept has a reasonable structure and is easy to use.
Owner:THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
An intelligent high-speed roadbed settlement observation device
InactiveCN117128926BImprove stabilityachieve observationHeight/levelling measurementLaser rangingSpiral blade
The present invention provides an intelligent high-speed roadbed settlement observation device, which relates to the field of roadbed detection technology, and includes a cone tube, the lower end of the cone tube is cone-shaped, and a spiral blade is fixedly connected to the outer peripheral side outside the cone part, and a lower connecting frame is arranged on the outer side of the spiral blade, and an upper connecting frame is sleeved on the outer side of the cone tube located above the spiral blade, and one side of the upper connecting frame and the lower connecting frame are slidably connected to the same side connecting frame, and a display controller is arranged on the side of the side connecting frame away from the cone tube. In the present invention, by rotating the inner pressure plate downward, the wide-leg telescopic support block slides down out of the arc groove and then supports to improve the overall stability, and then the roadbed presses down on the pressure plate, driving the upper connecting plate to move the end downward, and then the top cover follows the movement of the end, so that the distance from the laser ranging sensor to the polygonal block of the inner pressure plate changes, thereby realizing observation, which is very convenient to use.
Owner:PINGXIANG TRANSPORTATION BUREAU +2
Auxiliary device for autonomously implementing intermittent urethral catheterization by women
PendingCN119184593Aeasy to observeachieve observationEndoscopesCatheterMechanical engineeringField of view
The invention provides an auxiliary device for a woman to autonomously implement intermittent urethral catheterization, comprising: a patting ruler, the patting ruler comprising a strip-shaped memory metal elastic sheet, the memory metal elastic sheet having a straight state and a curled state, the memory metal elastic sheet being wound around the leg of the woman and applying pressure to the leg of the woman in the curled state; the self-speculum assembly comprises a mirror surface, a light source and a magnet which are connected with one another, the self-speculum assembly is magnetically attracted and fixed to the side, away from the female leg, of the patting ruler through the memory metal elastic piece and the magnet, and the self-speculum assembly has the movement stroke of axial rotation based on the axis of the magnet in the state that the self-speculum assembly is magnetically attracted to the patting ruler; the light source is used for emitting light to irradiate the private part of a woman, and the mirror surface is used for reflecting reflected light of the private part of the woman into the visual field of the woman. According to the invention, the female can conveniently and autonomously observe the private part in an environment with insufficient light and autonomously implement intermittent urethral catheterization.
Owner:AFFILIATED HUSN HOSPITAL OF FUDAN UNIV
A combined soft fiber ureteronephroscope
The present invention discloses a combined soft fiber ureterorenoscope, comprising a curved portion, the curved portion is connected to an assembly seat through an insertion tube, an inner tube is arranged in the assembly seat, a steel wire is passed through the inner tube, the steel wire is fixedly connected to the curved portion, the other end of the steel wire is sleeved on the outer side of a steel wire sleeve, the steel wire sleeve is sleeved on a sleeve fixed shaft, the sleeve fixed shaft is fixed on a handle seat, a locking mechanism is arranged between the steel wire sleeve and the handle seat, two optical fibers are passed through the interior of the assembly seat, one is an image fiber, one end of the two optical fibers is connected to a joint, the joint is connected to an illumination coupler, the other image fiber is connected to a feeder through a joint, the feeder is connected to a limited position observation eyepiece, and the limited position observation eyepiece is connected to a combined eyepiece. The above structure improves the softness of the nephroscope, facilitates the adjustment of the angle of the curved portion, and improves the maneuverability and flexibility of the device.
Owner:NANCHANG WALKER MEDICAL TECH CO LTD
Sputum aspirator for children
ActiveCN222172751Uachieve observationachieve stabilizationSuction devicesAspiratorLiquid storage tank
The utility model discloses a children's sputum aspirator in the technical field of sputum aspirates.The children's sputum aspirator comprises a mounting shell, a negative pressure machine is arranged in the mounting shell, the negative pressure machine is fixedly connected with the mounting shell, a first placing frame is arranged at the top of the mounting shell, the first placing frame is fixedly connected with the mounting shell, an occlusion device is arranged in the first placing frame, and a second placing frame is arranged in the second placing frame. A steel ring is arranged in the occlusion device, a protective pad is arranged on the surface of the steel ring, the protective pad is fixedly connected with the steel ring, a limiting pad is arranged on the surface of the protective pad, the limiting pad is fixedly connected with the protective pad, a second placing frame is arranged at the top of the mounting shell, and the second placing frame is fixedly connected with the mounting shell. Through the arrangement of the first containing frame, the limiting pad, the protection pad, the steel ring, the second containing frame and the observation openings, the child sputum aspirator can observe and stabilize the liquid storage tank in the sputum aspiration process of a child, the function of preventing the child from discomforting the sputum aspiration tube is achieved, and the working efficiency of the child sputum aspirator is improved.
Owner:陈明霞
A submerged load distributed ultra-short baseline positioning system and positioning method
ActiveCN121763209BSolve the low positioning accuracyachieve observationPosition fixationAcoustic arrayClassical mechanics
The application belongs to the field of positioning, and particularly relates to a submerged load distributed ultra-short baseline positioning system and a positioning method. The application discloses a submerged load distributed ultra-short baseline positioning system and a robust positioning method thereof, which effectively overcomes the problem that the positioning results of a traditional ultra-short baseline positioning system are inconsistent under limited observation space and different array patterns. By arranging acoustic elements at multiple positions on the surface of a submarine, a distributed acoustic array is formed, and the observation space of the submarine is expanded. Meanwhile, a robust positioning method is proposed by introducing azimuth constraints, and the robustness of the acoustic positioning result to array changes is enhanced. Through the application, the observation of the acoustic array on the submerged load to a target in the whole space can be realized, and stable positioning accuracy can be maintained when part of the acoustic elements fail.
Owner:QINGDAO INNOVATION & DEV CENT OF HARBIN ENG UNIV
Short-wave infrared light emission and fluorescence confocal microscopy system for integrated circuit detection
The present application relates to a kind of microscope systems, in particular to a kind of short wave infrared waveband confocal microscopic system.The system includes bright / dark field microscopic subsystem, photonic emission microscopic subsystem, short wave infrared laser scanning confocal microscopic subsystem, fluorescent confocal microscopic subsystem, control module.The system presented in the present application can be through the electrical light emission and / or photoluminescence emission of semiconductor device in integrated circuit, obtain short wave infrared fluorescence lifetime curve, that is, the determination of semiconductor defect type can be made.In addition, the system uses the structure of multiple subsystem optical path multiplexing in structural design, while collecting the short wave infrared fluorescence generated by excitation defect or failure point, and has higher integration, only using the single system presented in the present application can realize the observation, positioning and failure analysis of defect or failure point.
Owner:SHANDONG UNIV
Electrical engineering security monitoring device
ActiveCN222339476Uquick installationquick disassemblyClosed circuit television systemsStands/trestlesControl engineeringConstruction engineering
The utility model discloses an electrical engineering security monitoring device, and specifically relates to the electrical engineering field, the electrical engineering security monitoring device comprises a monitoring protection shell, the monitoring protection shell is internally provided with a quick release structure, the quick release structure comprises a monitoring camera arranged in the monitoring protection shell in a sliding manner, the two sides of the monitoring camera are both fixedly provided with installation sliding blocks, and the installation sliding blocks are arranged in the monitoring protection shell. And first magnetic attraction blocks are fixedly arranged on the rear end faces of the two mounting sliding blocks correspondingly, and mounting sliding grooves are formed in the two sides in the monitoring protection shell correspondingly. According to the utility model, the mounting and dismounting processes of the monitoring camera are more convenient and quicker, the convenience of single-person operation is realized, the traditional mounting and dismounting generally need to be completed by cooperation of multiple persons, and the mounting can be completed by only one mounting worker by using the quick mounting and dismounting design.
Owner:HULUDAO AOWEI TECH CO LTD
On-orbit autonomous geometric calibration method and system for wide-field optical remote sensing satellites
ActiveCN116228874Bachieve observationDoes not affect the execution of imaging tasksImage enhancementImage analysisInformation processingCamera image
This invention proposes an on-orbit autonomous geometric calibration method and system for wide-field-of-view optical remote sensing satellites. The method includes: camera imaging and transmitting the captured images to an on-board calibration type autonomous identification module; the on-board calibration type autonomous identification module, combined with satellite orbit and attitude data, determines whether the camera's field of view simultaneously images deep space and the ground; if both exist simultaneously, the Earth's edge is extracted as the boundary between stars and landmarks to delineate their distribution areas; if not, the calibration point type is explicitly determined to be either a landmark or a star; based on the calibration point type, the corresponding image is transmitted to an on-board stellar autonomous calibration module or an on-board landmark autonomous calibration module, and geometric calibration parameters are calculated; the calculated calibration parameters are transmitted to an on-board information processing unit for satellite imaging. This invention ensures the geometric calibration accuracy across the entire field of view of the camera; it avoids the process of transmitting satellite images down to the ground for calculation, thus improving the real-time performance of the calibration parameters.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY
Device and method for ultrasonic-assisted right-angle cutting of ceramic-based composite materials
ActiveCN115781939Bachieve observationImprove production efficiencyWorking accessoriesStone-like material working toolsChip formationUltrasound assisted
The present invention provides a device and method for ultrasonic-assisted right-angle cutting of ceramic-based composite materials, including a cutting system, a force measuring system, a photographing system and a tool setting system. The cutting system includes a five-axis CNC machining center, an ultrasonic vibration tool holder, a contactless power transmission device, an ultrasonic power supply, and a special tool. The force measuring system includes a dynamometer, a charge amplifier, a data collector and a computer. The photographing system includes a high-speed camera, a high-power lens, a data storage device and a processor. The tool setting system includes an acoustic emission sensor, a probe, and the computer. The probe and the acoustic emission sensor are connected, and the acoustic emission sensor is cleared and calibrated before tool setting. The present invention is a new type of ultrasonic-assisted right-angle cutting device that integrates real-time cutting force and cutting process morphology recording, which can realize the observation of chip formation during ultrasonic-assisted cutting of composite materials and compare cutting morphology and cutting force in real time.
Owner:DALIAN UNIV OF TECH
Agricultural machine path tracking control method and system based on data sampling output feedback
PendingCN119439736AImprove adaptabilityEasy to implementClimate change adaptationAdaptive controlControl systemFeedback controller
The invention discloses an agricultural machine path tracking control method and system based on data sampling output feedback. The method comprises the following steps: firstly, establishing an agricultural machine path tracking model containing an unknown state; designing a discrete time observer based on the established agricultural machine path tracking model containing the unknown state, and designing a data sampling output feedback controller by using vehicle state information estimated by the discrete time observer; the actual control quantity of the agricultural machine front wheel rotating angle is obtained through a data sampling output feedback controller, and the agricultural machine path is tracked and controlled based on the control quantity. The data sampling controller model adopted by the invention is in a discrete expression form, is more suitable for application scenes with a relatively long sampling period and relatively rough equipment, and is convenient to realize in a digital control system, and relatively accurate path tracking can be realized only by using a low-cost sensor of the vehicle, so that the cost can be reduced.
Owner:JIANGSU UNIV
Preparation method of metallographic sample of large component coated with thermal barrier coating
PendingCN119086218Aachieve observationAccurately obtain damage characteristicsMaterial analysis using wave/particle radiationPreparing sample for investigationCrazingScanning electron microscope
The invention belongs to the field of metallographic sample preparation, and particularly relates to a metallographic sample preparation method of a large component coated with a thermal barrier coating, which comprises the following steps: step 1, selecting a to-be-observed area with a crack and coating falling position on the surface of the component, scribing by extending a certain distance towards the periphery by taking the to-be-observed area as the center, and cutting along the scribing to obtain a sample; 2, the sample is subjected to cold inlaying and curing through a cold inlaying agent, and damage to cracks and a coating in the further machining process of the sample is avoided; 3, the sample is cut in the direction perpendicular to the surface crack of the sample so that the size of the sample can be matched with a scanning electron microscope sample chamber, and grinding and polishing are conducted; and 4, cleaning and blow-drying the sample, spraying metal, placing the sample on a sample table, pasting a conductive adhesive tape, and carrying out scanning electron microscope microstructure observation.
Owner:AECC SHENYANG ENGINE RES INST
A local linear expansion system identification method based on attention mechanism
ActiveCN118963702Bachieve observationRealize identificationDigital differential analysersNeural learning methodsKaiman filterState observer
The present application relates to a local linear expansion system identification method based on an attention mechanism, the method comprising: mathematically describing a discrete general form of nonlinear system, and using a variety of circuit parameters as input and output data of the nonlinear system; constructing a state observer based on the nonlinear system and through the Kalman filter theory; performing a first-order Taylor series expansion on the state equation in the nonlinear system to obtain a locally expanded nonlinear system; constructing a time-local Taylor observer based on the locally expanded nonlinear system and the state observer; fitting the time-local Taylor observer with a deep attention network module to obtain an accurate time-local Taylor observer; inputting the data to be predicted into the accurate time-local Taylor observer to obtain an output prediction value, which is a load voltage prediction value. This method realizes the observation and identification of nonlinear systems with unknown general forms or specific mechanism models.
Owner:XIANGJIANG LAB