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141results about How to "Advance the development process" patented technology

Three-dimensional transformer station semi-automatic reconstruction method based on laser point cloud data

The invention discloses a three-dimensional transformer station semi-automatic reconstruction method based on laser point cloud data. The method comprises the steps: according to the existing standard of an electrical apparatus in the electric power industry, by collecting point cloud data and texture data of a transformer station, constructing a high-reality three-dimensional standard mode library of the electrical apparatus of the transformer station; by combining with the existing standard model of the transformer station, based on the laser point cloud data, performing ground feature extraction and identification, and automatically acquiring a position and a gesture of the electric apparatus in space; putting the three-dimensional electric apparatus into a corresponding point cloud three-dimensional scene, thereby completing vectorization of the point cloud data and further completing three-dimensional reconstruction of a transformer station scene. According to the three-dimensional transformer station semi-automatic reconstruction method based on the laser point cloud data, semi-automation of the three-dimensional reconstruction of the transformer station is achieved, and manual interference can be reduced, so that the production efficiency is improved, and the production cycle is shortened; by utilizing the precision advantage of laser point cloud, the precision of model products can be improved, and the whole simulation degree is high.
Owner:XIAMEN GREAT POWER GEO INFORMATION TECH +1

Method for improving electrical resistivity evenness of P-type silicon epitaxial wafer for CCD

The invention relates to a method for improving the electrical resistivity evenness of a P-type silicon epitaxial wafer for a CCD. The method includes the steps that an intrinsic layer is prepared before a needed epitaxial layer grows, so that impurities on the edges of the surface and the back face of a substrate and impurities in a furnace cavity of an epitaxial furnace are isolated from volatilizing and escaping to the needed epitaxial layer; meanwhile, the harmful impurities adsorbed to the surface is resolved by increasing temperature, the impurities in a reaction furnace cavity are removed out through continuously-changed air flow, a passive doping source is effectively restrained, then the needed parameter epitaxial layer grows, and therefore the epitaxial layer with the high electrical resistivity evenness is acquired. According to the method, the substrate covered silicon technology, the two-step epitaxial growth technology and the temperature and flow change blowing technology are organically combined, parameters of the prepared silicon epitaxial wafer can meet the requirements of a substrate material of the large-area-array and high-integration-density CCD, the electrical resistivity evenness of the epitaxial wafer can be higher than 99%, and the research process of the high-performance CCD is greatly promoted.
Owner:CHINA ELECTRONICS TECH GRP NO 46 RES INST

Method for improving thickness homogeneity of silicon extending slices for CCD device

The invention relates to a method for improving the thickness homogeneity of silicon extending slices for a CCD device. The method comprises the steps: major factors of influencing the thickness homogeneity of the silicon extending slices, such as the adjustment of air flows for the growth of the silicon extending slices, the height of a top disc of a base, the rotation manner of the base, and the like, the thickness homogeneity of the silicon extending slices at different positions on the base in a furnace and different local positions in the silicon extending slices is improved, and a process method for obviously improving the thickness homogeneity of the silicon extending slices for the CCD device is provided, so that the silicon extending slices with high thickness homogeneity are obtained, the performance of the prepared CCD device with a large area array and high resolution is greatly improved, and the rate of finished products is increased. The silicon extending slices prepared by the method can meet the requirements of the CCD device with high performance and high-integration density for the thickness and the homogeneity of extending layers. The homogeneity of the silicon extending slices prepared by the process method can be higher than 98 %, which achieves the domestic and foreign advanced level, so that the silicon extending slices can replace import products, and the developing and the preparing process of the domestic CCD can be greatly promoted.
Owner:CHINA ELECTRONICS TECH GRP NO 46 RES INST

Software-radio-based intelligent bridge system for ship

InactiveCN102594372ABreak the market monopolyRich varietyTransmissionMicrocomputerNetwork connection
The invention discloses a software-radio-based intelligent bridge system for a ship. The system comprises an antenna group, a radio frequency conversion group connected with the antenna group, a high-speed data processing board connected with the radio frequency conversion group, a microcomputer data processing platform connected with the high-speed data processing board, and a display console, wherein the antenna group is used for transmitting and receiving a communication radio frequency signal and a navigation radio frequency signal; the radio frequency conversion group converts a radio frequency signal received by the antenna group into an intermediate frequency signal, or converts an intermediate frequency signal to be transmitted by the high-speed data processing board into the radio frequency signal; the high-speed data processing board processes the intermediate frequency signal converted by the radio frequency conversion group, and performs the conversion of an analogue/digital signal; the microcomputer data processing platform comprehensively processes navigation information according to the converted digital signal, and displays information required by a navigator and a manual operation instruction; and the high-speed data processing board is connected with the microcomputer data processing platform directly through a system bus. An external network connection mode adopted by the conventional integrated bridge system for the ship is replaced by a system bus mode, so that the execution efficiency of the system is high.
Owner:DALIAN MARITIME UNIVERSITY

Wheat dampening control equipment

The invention discloses wheat dampening control equipment and belongs to the field of flour production equipment. The wheat dampening control equipment comprises an intensive dampener, a water valve and a main controller and further comprises a front detection channel measuring device and a back detection channel measuring device, wherein the front detection channel measuring device is suitable for measuring the moisture content of dried wheat and the wheat flow, and the back detection channel measuring device is suitable for measuring the moisture content of dampened wet wheat. The main controller calculates the dampening water flow according to the moisture content of the dried wheat and the wheat flow which are measured actually and the set moisture value to give rough adjustment instructions to the water valve, and then water is supplied to the intensive dampener; and the moisture content of the wet wheat is compared with the set moisture value through the main controller, and if differences exist, then the main controller gives accurate adjustment instructions of increasing or decreasing the water quantity to the intensive dampener. According to the wheat dampening control equipment, the detection precision and the processing efficiency of the wheat can be improved, the product cost is reduced, intelligentizing of the wheat processing procedure is facilitated, and the development course of the wheat processing industry is promoted.
Owner:AEROSPACE INFORMATION

General propelling module for small satellites

ActiveCN102303710AMeet the needs of multiple track changesCarry moreCosmonautic propulsion system apparatusNatural satellitePurlin
The invention discloses a general propelling module for small satellites. The propelling module comprises an upper flange, a lower flange, a storage box bracket, an engine bracket and a shell, wherein the upper flange and the lower flange are positioned on two end faces of the shell respectively, the upper flange is connected with an electronic compartment, and the lower flange is a satellite arrow butted face. The shell has a hollow round table-shaped structure consisting of a purlin structure and is provided with an aluminum envelope, and the storage box bracket is positioned at the lower part of the inside middle part of the shell. The storage box bracket has a cover-like structure, the upper surface of which is smooth and the lower surface of which is provided with reinforcing ribs; the center of the storage box bracket is provided with an ion propeller pipeline outlet; the storage box bracket is provided with bottleneck mounting holes at the quadrants of the Y axis and the Z axisof the YOZ plane of a propelling module body coordinate system and in the direction forming 45-degree angles with the coordinate axes; and the upper surface of the storage box bracket is a mounting surface for spreading equipment and pipelines. An engine bracket is respectively arranged at four intersection points of the shell and the Y axis and the Z axis of the propelling module body coordinatesystem, wherein the brackets at the two intersection points of the shell and the Y axis are positively arranged engine brackets, and the brackets at the two intersection points of the shell and the Zaxis are obliquely arranged engine brackets.
Owner:AEROSPACE DONGFANGHONG SATELLITE

Optical design method of light guide plate

The invention discloses an optical design method of a light guide plate. The method comprises the steps of three-dimensional modeling, dot designing, simulating and analyzing, index simulating, debugging and optimizing, result outputting, and light guide plate machining. According to the optical design method of the light guide plate, the density, the size and the microscopic-carving scale (V-cut)of diffusion dots on the light guide plate are designed. Meanwhile, the method is matched with the mold designing and machining technology, so that the uniformity and the high brightness of the emergent light intensity of the light guide plate are achieved. According to the invention, the design sequence of the optical design method of the light guide plate sequentially comprises the steps of three-dimensional modeling, dot designing, simulating and analyzing, index simulating, debugging and optimizing, result outputting, and light guide plate machining. According to the appearance, size andsimulation indexes of the light guide plate, the analog simulation design of the light guide plate is realized. Based on the analog simulation method, the optical design and the development process ofthe light guide plate are optimized, and the optical development period of the light guide plate is shortened. The design and development cost of the light guide plate is reduced. The light guide plate is excellent in various performance indexes, short in machining period and high in efficiency.
Owner:苏州欧匹希光电有限公司

Evaluation method for low-temperature cold-start oil injection test of direct-injection gasoline engine stand

The invention relates to an evaluation method for a low-temperature cold-start oil injection test of a direct-injection gasoline engine stand, which comprises the following steps of: constructing a test stand, preparing the test at the early stage, performing the low-temperature cold-start oil injection test, comparing the wall wetting conditions of a cylinder barrel under different oil injection parameters after the test, and by combining the different oil injection parameters, obtaining optimal oil injection control parameters. According to the evaluation method for the low-temperature cold start oil injection test of the direct injection gasoline engine pedestal, whether oil injection control parameters adopted by the developed direct injection gasoline engine are reasonable in cold start and warm-up stages in a low-temperature environment or not, whether the risk that fuel oil collides with the wall exists or not, and whether engine oil dilution can be caused or not can be judged; through examination of the test, whether the design of the engine fuel injector and related fuel injection parameter control are reasonable or not can be reflected in time; and the method can effectively judge the wall wetting condition of the cylinder barrel, the design scheme of parts and control parameters under the limiting condition after cold start of the engine in the low-temperature environment, ensures the development quality of engine products, and improves the reliability of the engine.
Owner:CHINA FIRST AUTOMOBILE

Stent for lesions of branch blood vessel opening

ActiveCN106821563AImprove dredging effectSolve the status quo of incomplete lesion expansionStentsProsthesisInsertion stentMedicine
The invention discloses a stent for lesions of a branch blood vessel opening. The stent is composed of a positioning part and an expansion part, wherein the expansion part is of a columnar net shape with a regular shape; the positioning part is an annular; the tail end of the expansion part is integrally machined and formed; the positioning part is arranged at a connecting part of a main blood vessel and a branch blood vessel and the stent is positioned through common effect of the positioning part and a positioning guide wire; the positioning guide wire stretches from the main blood vessel, penetrates into the positioning part and then extends into a main pipe of the branch blood vessel; a lead guide wire is inserted into the expansion part; the lead guide wire enters the branch blood vessel under the dragging effect of the lead guide wire; the lesions of the branch blood vessel opening are accurately positioned under the common effect of the positioning part and the positioning guide wire. When the stent provided by the invention is applied to interventional therapy of the lesions of the branch blood vessel opening, the stent has the advantages of accuracy in positioning and good blood vessel dredging effect; a current situation that the positioning of a traditional stent is not accurately positioned so that the lesions of the branch blood vessel opening are not completely expanded can be completely solved, and a development process of modern medical treatment is facilitated.
Owner:JW MEDICAL SYSTEMS LTD

Surface subsidence monitoring system and method based on high-resolution remote sensing satellite

PendingCN111102962AReduce the difficulty of analysisFill in the defect that the cost of multi-point monitoring is too highHeight/levelling measurementMonitoring siteMonitoring system
The invention provides a surface subsidence monitoring system based on a high-resolution remote sensing satellite. The surface subsidence monitoring system comprises a reference point outside a subsidence area and a measuring device, and the measuring device comprises a support, a motor, a fastening knob, a range finder, a pin, a calibration ball and a communication box. The motor is installed onthe support through a fastening knob, the range finder is installed on the output shaft of the motor through the pin, the calibration ball is hinged to the bottom face of the tail end of the range finder, and a laser emitted by the calibration ball is always horizontally forward. A calibration laser receiver is arranged on the bottom surface of the front end of the range finder; a distance measuring laser emitter and a distance measuring laser receiver are arranged on the head end surface of the distance measuring instrument; the communication box is arranged on the top surface of the horizontal plate at the bottom of the bracket; a processor and a communication element are arranged in the communication box; the measuring device is installed at a serious point position of a settlement areamonitored by a high-resolution remote sensing satellite, the vertical distance between a reference point and a monitoring point outside the settlement area is measured by using a trigonometric function, and when the settlement distance and the settlement speed exceed respective threshold values, a warning signal is sent to a system background.
Owner:XIAMEN KINGTOP INFORMATION TECH

Installation method and hoisting method of hoisting system

The invention discloses an installation method and a hoisting method of a hoisting system. A third newly-added steel beam is arranged below an upper floor slab, and a first newly-added steel beam and a second newly-added steel beam are arranged below a lower floor slab so that the bearing capacity of the lower floor slab and the bearing capacity of the upper floor slab can be improved; the hoisting positioning unit and the horizontal transportation unit are installed above the upper floor slab and the lower floor slab correspondingly, under cooperation of the horizontal transportation unit and the hoisting positioning unit, transportation, hoisting and positioning of components of the to-be-installed tower crane foundation structure are more convenient, the installation efficiency of the tower crane foundation structure is improved, the construction of the tower crane foundation structure in the building can be completed without arranging large transportation equipment in advance. The hoisting system used by the invention is convenient to use, high in adaptability and simple and quick to mount and dismount; parts such as the first newly-added steel beam, the second newly-added steel beam, the horizontal steel rail and the inclined steel rail which are used are all detachable and can be repeatedly used, and waste of materials is avoided.
Owner:BEIJING NO 3 CONSTR ENG +1

A floating structure and construction technology of a water surface photovoltaic power station

ActiveCN105356827BThe floating structure is novel and simpleThe shape of the space is novel and peculiarPhotovoltaic supportsWaterborne vesselsPhotovoltaic industryMarine engineering
The invention provides a technical scheme of a floating structure of a surface photovoltaic power station. The floating structure comprises a plane fixation structure, support floating bodies, a walkway plate, and photovoltaic assemblies arranged on the support floating bodies. The plane fixation structure is a meshed or aperture grid-shaped cell structure; and the space inside meshes or aperture grids is used for accommodating and fixing support floating bodies. Under the joint effect of the multiple support floating bodies, the plane fixation structure and the support floating bodies float on the water surface. The space shapes of the support floating bodies are novel and peculiar and the support floating bodies serve as key function components for the overall floating structure. The support floating bodies play a role in supporting the plane fixation structure upwardly and supporting the photovoltaic assemblies upwardly and directly. In addition, the invention also provides a corresponding construction process method; floating plastic support floating bodies are produced in situ at the construction site, thereby reducing the logistics transportation cost substantially and lowering the overall engineering cost. Therefore, the feasibility objective of the technical economy of the surface photovoltaic power station is achieved and the development process of the national photovoltaic industry is promoted.
Owner:张庆中

Water quality monitoring system and early warning method based on high-resolution remote sensing satellite

The invention provides a water quality monitoring system based on a high-resolution remote sensing satellite. The water quality monitoring system comprises a floating plate, a support, solar panels, awind wheel, vertical pipes, motors, clamping bolts, a transmission shaft, a transmission gear, a bearing, a cleaning brush, a light emitter, a light receiver, a circuit box and a sealing cover. The floating plate floats on the water surface, a support vertically penetrates through the floating plate, the bottom of the support is divided into two ends, one end is provided with the light emitter, and the other end is provided with the light receiver. The circuit box is arranged at the top of the support; the plurality of solar panels are arranged on the outer wall of the support; the two vertical pipes vertically penetrate through the floating plate, the transmission shaft is installed in the vertical pipes through bearings, and the wind wheel is installed at the top of the transmission shaft. The two motors are screwed on the top surface of the floating plate, the clamping bolts are sleeved on output shafts of the motors, and the clamping bolts and the vertical pipes form a lead screwnut structure; the transmission gear is arranged at the bottom ends of the vertical pipes, and the bottom end of the transmission shaft is processed into a horizontal gear meshed with the transmissiongear; and the inner end of the transmission gear is in pin joint with the cleaning brush for cleaning the light emitter and the light receiver.
Owner:XIAMEN KINGTOP INFORMATION TECH

Intelligent power generation and pressure regulation box for natural gas pipeline network

The invention discloses an intelligent power generation and pressure regulation box for a natural gas pipeline network. The intelligent power generation and pressure regulation box for the natural gas pipeline network comprises a box body, a pressure regulation unit and a power generation unit, wherein the pressure regulation unit and the power generation unit are arranged in the box body. The pressure regulation unit comprises a first flow regulation valve, a first flowmeter and a first pressure regulator which are sequentially connected to a pressure regulation pipeline in series from upstream to downstream. The power generation unit comprises a second flowmeter, a second flow regulation valve, an expansion device and a second pressure regulator which are sequentially connected to a power generation pipeline in series from upstream to downstream. A power output shaft of the expansion device is connected with an input shaft of a power generator. Power generated by the power generator is used for providing power support for electric equipment. The pressure regulation pipeline and the power generation pipeline are connected in parallel and provided with a common upstream input end and a common downstream output end. The intelligent power generation and pressure regulation box has the advantages of being simple in structure, convenient to install, stable in operation and high in intelligentization degree, and the problem that according to a traditional fuel gas pressure regulation box, remote transmission of data and monitoring cannot be achieved due to power shortage can be effectively solved.
Owner:BEIJING GAS GRP

General-purpose hardware platform device

InactiveCN102231060AStable and complete workFully structured designProgramme control in sequence/logic controllersGeneral purposePower controller
The invention provides a general-purpose hardware platform device used in various applications of electronic control. The general-purpose hardware platform device comprises a central processing unit module, a keyboard input and display module, an input / output module and a power supply module. The general-purpose hardware platform device provided by the invention is based on an LPC175X (linear power controller) or series of processors having the same functions with the LPC175X, is integrated with an advanced core structure, has a structural design with comprehensive functions and integrates favorable power consumption control and low cost into a whole, wherein the central processing unit module comprises a high-performance industrial microprocessor and a programmable high-performance CPLD (complex programmable logic device) processor, and the input / output module with various interface functions such as RS422, RS232, an LAN (local area network) and the like is arranged, thus compared with the traditional development platform, the whole device provided by the invention has the advantages of more functions and stronger practicability. The general-purpose hardware platform device provided by the invention structurally ensures a whole platform to operate more stably and completely.
Owner:BEIJING AEROSPACE FUDAO HIGH TECH

Obtaining method of optical remote sensing satellite image in-scene relative distortion indexes

ActiveCN103438865AOptimize the development processImprove image quality and use efficiencyPhotogrammetry/videogrammetryDistortionSatellite imagery
The invention discloses an obtaining method of optical remote sensing satellite image in-scene relative distortion indexes. Firstly error sources of remote sensing image in-scene relative distortion indexes are defined; image in-scene relative distortion is mainly affected by the random error of a satellite measurement system, a satellite imagery timer random error, satellite platform flutter and the satellite in-rail calibration accuracy; secondly, the optical remote sensing image relative in-scene distortion caused by each error source is obtained by calculating the image in-scene relative distortion value caused by each independent error source in the directions of along and crossing a track; finally the comprehensive influence on the optical remote sensing image relative in-scene distortion by each error source is obtained by adopting the optical remote sensing image relative in-scene distortion value caused by each error source, and the image in-scene relative distortion is estimated. The method indicates all factors influencing the image in-scene relative distortion, and gives out a quantitative calculation method of each independent influence factor and a method for estimating the image in-scene relative distortion.
Owner:AEROSPACE DONGFANGHONG SATELLITE
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