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952results about How to "Solve the request" patented technology

Method for scheduling satellite data product production tasks in parallel based on multithread

ActiveCN101739293ASolve scheduling problemsIncrease the number of tasksResource allocationSatellite dataIdle time
The invention discloses a method for scheduling satellite data product production tasks in parallel based on multithread. The method comprises the following steps: setting priorities for tasks to be scheduled for executing and realizing a uniformed interface; adding the tasks into a priority queue according to an order of the priorities from high to low; setting the maximum number and the minimal number of the tasks of a thread pool, and the longest idle time of a thread; and starting a daemon thread in the thread pool and a plurality of task threads to execute the tasks, wherein the daemon thread regulates the number of the task threads dynamically according to the situation of task amount. The method can utilize system resource rationally, aims at the data product production of a satellite ground application system, and solves the difficult points of complicated product production processes, long task executing time, large task amount, high real time and parallelism degree for scheduling the tasks and the like.
Owner:SPACE STAR TECH CO LTD

Start working method for hydrocracking process

The invention discloses a hydrocracking process operation method. Hydrocracking pre-refining catalyst is treated by precuring outside a reactor while hydrocracking catalyst is not treated or is partially treated by precuring outside the reactor. Curing ingredient introduced by the hydrocracking pre-refining catalyst and the hydrocracking catalyst precured outside the reactor accounts for 90-120% of the theoretical sulfur demand for all the catalyst. The hydro cracking pre-refining catalyst and the hydro cracking catalyst are layered in the reactor and then activated by heating, so that all the catalyst is sulfurated effectively. The method of the invention can precure the hydrocracking pre-refining catalyst outside the reactor or precure the hydrocracking pre-refining catalyst and partial hydrocracking catalyst outside the reactor, thus reducing the catalyst requiring precuring outside the reactor, reducing the production period and production cost of the precuring catalyst and improving the economic benefit and production security.
Owner:CHINA PETROLEUM & CHEM CORP +1

Positioning method and terminal

The invention relates to a positioning method and a terminal. The method comprises the following steps of: judging whether the terminal is in an indoor environment or not; and when the terminal is in the indoor environment, positioning the indoor height of the terminal by a first positioning mode and / or positioning the indoor level of the terminal by a second positioning mode. The indoor height of the terminal is positioned by a pneumatic height gauge or an air pressure gauge and / or the indoor level of the terminal is positioned in combination with a height positioning result. By the two positioning modes, the problem of different requirements on height, the positioning accuracy of a horizontal plane and positioning delay time in indoor navigation positioning service is solved, positioning accuracy is enhanced, positioning delay time is shortened, user experience of indoor navigation positioning is improved and various application requirements of indoor navigation positioning and the like are met.
Owner:ZTE CORP

Micro-embedded real time task scheduling device and scheduling method

The invention requests to protect a micro-embedded type real-time task scheduler and a scheduling method, relating to the industrial control and intelligent instrument related field. When the scheduling method of the invention is used in scheduling process, the status of a task is marked through the set of a task status word in a task control block; the scheduler determines the scheduling of the task and drives the scheduling through a clock and an event; real-time request is realized by adopting a mode of combining a simplified kernel code, a deprivable kernel and interrupt; a multipurpose mode of adopting a status word to realize ready, suspension and time delay counting reduces task execution codes, simplifies scheduling algorithm and reduces kernel codes; a scheduling lock mark is added to the task control block, and users can lock or unlock in the task according to specific needs. The scheduler solves the problems existing in the prior programming mode of middle-low grade intelligent instruments and meters, meets the requirements on real-time performance, low power consumption and small kernel, and improves programming efficiency as well as code portability.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Mechanical two-degree-of-freedom controllable loading machine

InactiveCN101892680AArbitrary outputImplement the loading actionMechanical machines/dredgersEngineeringDegrees of freedom
The invention discloses a mechanical two-degree-of-freedom controllable loading machine. A bucket turning crank-link mechanism consists of two four-bar mechanisms which are connected in series with each other; a loading arm driving mechanism is a crank-rocker mechanism; the three cranks are driven by three controllable motors respectively; any track output of an output end is realized in a working space by programming; and turning of a bucket is matched with lifting of the arm of the loading machine, and actions such as attitude keeping, adjusting and the like are realized by programming a control motor. The mechanical two-degree-of-freedom controllable loading machine can overcome the defects of simple action and difficult control of the traditional mechanical loading machine, and also can overcome the defects of high requirement on a hydraulic element, easy oil leakage, low reliability and the like of the hydraulic loading machine.
Owner:GUANGXI UNIV

Network roaming system and method

The invention discloses a network roaming system and method and relates to the technical field of mobile communication. According to an embodiment, the network roaming method comprises the steps that a network roaming terminal establishes a wireless network communication channel with a current SIM card and has access to cloud side servers to obtain local SIM card information shared by the cloud side servers; through the local SIM card information, a wireless network communication channel for access to the internet is established; the wireless network communication channel established based on the local SIM card information provides the Wi-Fi access function for a user terminal, and therefore network roaming access of the user terminal is achieved. By the adoption of the network roaming system and method, network roaming cost is greatly reduced, the network roaming technology achieved through the network roaming system and method does not require that Wi-Fi must exists in a current network environment or a local SIM card service must be opened, the adaptability is higher, and it is only required that a location is within wireless communication network coverage.
Owner:TIANJIN ROAMWIFI TECH

Method for manufacturing high-strength X100 steel grade spiral seam submerged arc welded pipe

The invention discloses a method for manufacturing a high-strength X100 steel grade spiral seam submerged arc welded pipe. The method comprises the following steps: uncoiling, flattening, edge milling, pre-springing, molding, inside welding, outside welding, pipe end belling, base metal layering ultrasonic examination, weld seam X ray inspection, hydrostatic test, weld seam ultrasonic inspection, pipe end chamfering and finished product inspection. In the technical steps of the preparation method, double edge milling process, pre-springing process and pipe end belling process are added so as to successfully solve the technical problems that the high-strength X100 steel grade spiral seam submerged arc welded pipe has poor molding stability, the welding joint performance cannot meet technical requirement and the like.
Owner:NORTH CHINA GASOLINEEUM STEEL PIPE +3

A construction method of collapsible loess foundation

The invention discloses a construction method for a collapsible loess foundation. The construction method comprises the following steps of: firstly, performing foundation treatment on a loess field with collapsibility by using a super downhole dynamic consolidation (SDDC) pile; secondly, collecting undisturbed soil on site, normally performing an indoor experiment to measure an inter-pile soil compaction coefficient and an SDDC pile body compaction coefficient, evaluating the collapsibility, and if any one of the three indexes cannot meet a design requirement, performing pile compensation construction on the SDDC pile until the design requirement is met; and finally, pouring the pile and mudjacking. The method has the advantages of economy, environment friendliness, high treatment depth, good treatment effect, large bearing potential, high complicated load resistance and the like. By application of the method, various side effects caused by the collapsibility of the deep collapsible loess field can be eliminated, and requirements of upper-part high rise buildings on the bearing capability and settlement of the foundation can be met.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Wireless multimedia sensor network-oriented video compression method

The invention provides a wireless multimedia sensor network-oriented video compression method, which solves the problem of large data volume in video application. Due to the adoption of the method, code rate is reduced and the quality of a decoded image is improved at the same time, and at last, the energy consumption of a node of the sensor is reduced, so that the life cycle of a network is prolonged. In the method, encoding in a strenuous motion area and in a motion edge area is enhanced by adopting an ROI distinguishing algorithm, and the decoded image is postprocessed by adopting a deblocking filter, so that the subjective quality of the decoded image is further improved. On the basis of a Wyner-Ziv distributed video encoding scheme, the strenuous motion area is extracted through an ROI judging criterion based on an image gradient field and based on Huffman encoding and decoding compression is preformed, and the other areas are encoded and decoded based on the LDPC distribution type, so that the method has the advantages of reducing code rate, improving the quality of the decoded image, reducing the processing and transmission energy consumption of the nodes, implementing the optimized transmission of video and prolonging the life cycle of the whole network.
Owner:NANJING UNIV OF POSTS & TELECOMM

Ageing sweet-white wine and brewing process of ageing sweet-white wine

ActiveCN103911242ABroaden sources of raw materialsEnrich market product typesMicroorganism based processesWine preparationSweet white wineBottle
The invention relates to an ageing sweet-white wine and a brewing process of the ageing sweet-white wine, belonging to the technical field of brewing of wines. The physicochemical indexes of the ageing sweet-white wine disclosed by the invention are as follows: the content of reducing sugar is 80-90 g / L; the total acidity is 7.0-8.5 g / L; the alcoholic strength is 10.0-12.0%vol; the content of free sulphur dioxide is 30-45 mg / L; the total content of sulphur dioxide is less than or equal to 250 mg / L; the content of volatile acid is less than or equal to 1.0 g / L. The brewing process of the ageing sweet-white wine disclosed by the invention comprises the following steps of: (1) finely selecting grapes and removing stems; (2) crushing; (3) technically dividing; (4) centrifuging and clarifying at low temperature; (5) fining at low temperature, and filtering; (6) ageing by using an oak barrel; (7) blending and mixing; (8) fining for the second time, and filtering; (9) coldly processing stability; (10) sterilizing and filtering; (11) filling finished goods; (12) storing in a bottle. The ageing sweet-white wine disclosed by the invention is full-bodied in fragrance, graceful, lasting and plump in mouth feel; the brewing process of the ageing sweet-white wine disclosed by the invention is simple, scientific and convenient to operate; the production cost can be effectively reduced; the scale production of high-end sweet-white wines is realized.
Owner:COFCO GREAT WALL WINE YANTAI

Self-adaptive networking method based on baseband with large-scale processing ability and business

The invention relates to a self-adaptive networking method based on a baseband with a large-scale processing ability and business. Various access communication nodes access the baseband with the large-scale processing ability to realize intensive processing and controlling, and a three-level network of a cloud computing server, the baseband with the large-scale processing ability and the access communication nodes is formed. The baseband with the large-scale processing ability configures the access communication nodes according to the requirements of business and also self-adaptively adjusts resource and power distribution to increase the energy efficiency of the network according to the change of the business and a coverage area. User equipment covered by different access communication nodes shares the same wireless resource, the large-scale collaborative airspace interference control can also be realized, and wireless interference is reduced. As the method utilizes the baseband with the large-scale processing ability with a function for supporting heterogeneous multimode communication and a software-defined calculating ability to realize intensive controlling to network elements and sharing to the wireless resource, the wireless network realizes self-adaption to the coverage and the dynamic change of business, the energy consumption and interference of the network are reduced, and the spectral efficiency and the energy efficiency of the network are increased.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Spent fuel pool state continuous monitoring method and system

ActiveCN102945686AMeet insulation and radiation resistance requirementsInstrument failure rate is lowNuclear energy generationNuclear monitoringTemperature measurementEngineering
The invention, belonging to the technical field of nuclear industry measurement, particularly relates to a spent fuel pool state continuous monitoring method and a system thereof. The system comprises a liquid level, temperature measuring transducer, a transmitter unit, an installation support, a guide cylinder, a cable and an installation accessories, wherein the liquid level, temperature measuring transducer is fixed by the guide cylinder and the support, signals output by the transducer are transmitted by the cable to the remote mounted transmitter unit and are subject to calculation and compensation and other treatment and then transmitted to a main control room DSC system. According to the invention, under various operation states of nuclear power station, especially accidents, the liquid level and temperature continuous monitoring problem of the spent fuel pool from the exposure of spent fuel to the full water level is solved; simultaneously under design basis earthquake conditions and station blackout condition, the continuous monitoring problem of the spent pool is solved, thus the operator can monitor the spent pool states in real time; the system has the advantages of simple structure, convenient on-line adjustment and calibration, and easy interface with the control system, and can realize the real-time accurate continuous liquid level temperature two-parameter monitoring.
Owner:CHINA NUCLEAR POWER ENG CO LTD

Six-degree-of-freedom parallel micro platform

The invention discloses a six-degree-of-freedom parallel micro platform which comprises a fixed platform body and a movable platform body. The lower surface of the movable platform body is evenly provided with three sets of fixing bearing bases, and each fixing bearing base is connected with the fixed platform body downwards in a transmission mode through two branch chains, namely, the three sets of the bearing bases and six branch chains are arranged between the fixed platform body and the movable platform body. According to the six-degree-of-freedom parallel micro platform, the fixed platform body is fixed to the installation end face at the tail end of a macro robot through a micro platform installation hole, a tail end actuator is fixed to the movable platform body through a gripper installation hole in the movable platform body, the size is small, the weight is low, rigidity and precision are high, six-degree-of-freedom precise trimming of space postures of a workpiece in the assembly process is achieved, and the aim of precise assembly is achieved.
Owner:XIAN UNIV OF TECH

High-copper alloy strip for heat sink of automobile

The invention relates to a high-copper alloy strip for a heat sink of an automobile. The high-copper alloy strip comprises the following components in percentage by weight: more than or equal to 99.6% of copper, 0.05-0.20% of silver, 0.01-0.02% of stibium, 0.01-0.02% of chromium, 0.005-0.01% of phosphorus, 0.01-0.05% of rare earth and less than 0.0005% of oxygen. A production process of the high-copper alloy strip comprises the following steps of: (1) upward continuous casting; (2) continuous extruding; (3) cold rolling; (4) intermediate annealing; (5) finish rolling; (6) washing and passivating; (7) slitting; and (8) packaging and warehousing. The high-copper alloy strip provided by the invention has the technical advantages that composition of a high-copper alloy strip for an ultrathin water tank strip of an automobile is reasonably optimized and the problems that comprehensive performances such as electrical conductivity, anti-softening temperature and tensile strength can not meet operating requirements as a strengthened red copper alloy is adopted for preparing the ultrathin water tank belt in the prior art are solved.
Owner:南通市电梯部件业商会

Three-dimensional endoscope measuring device and method based on optical grating projection

The invention relates to a three-dimensional endoscopic measuring unit and a method based on the grating projection, comprising an optical fiber image guide, an amplitude-type transmission grating, a collimating lens, a semiconductor laser light source, a micro CCD sensor array, a transmission line, an image capture card and a computer. The three-dimensional endoscopic measuring unit is characterized in that: the computer comprises a corresponding image processing and three-dimensional profile calculation and reconfiguration software; the amplitude-type transmission grating is projected on the measured surface during endoscopic observation; the grating fringe is modulated by the measured surface, so as to generate deformation; the deformation grating fringe is collected through a CCD imaging system; and the three-dimensional profile information of the measured target is obtained through computer image processing and a three-dimensional profile reconstruction algorithm. The three-dimensional endoscopic measuring unit has the advantages of being able to obtain the three-dimensional profile information of the endoscopic object with fast measurement, higher measuring accuracy and simple way.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI

Method for compiling geological display map of chamber

The invention relates to a method for compiling a geological display map of a chamber and aims to solve the problems of high working load in graphic depiction and data input, complexity in drawing marking and format type-setting, difficulty in revising and updating, low data reusability and the like so as to improve the compilation efficiency of the geological display map of the chamber and the using efficiency of data. The invention adopts the technical scheme that: the method for compiling the geological display map of the chamber is characterized by comprising the following steps of: 1.1, setting map compilation; 1.2, recording geological graphs; 1.3, storing the recorded data, and repeatedly performing the steps 1.1 to 1.3, complementing and updating the recorded data for the previousoperation by the subsequent operation until the requirements for forming of the complete geological display map of the chamber are met; and 1.4, automatically drawing the map. The method is applicable to the fields of engineering geology and mining geology in the industries of hydropower, water conservancy, highway, railway and the like.
Owner:POWERCHINA HUADONG ENG COPORATION LTD

Synthetic fiber paper containing polyphenyl sulfide and aromid fiber and producing method thereof

InactiveCN1974925AHigher than strongHigher than the moldNon-fibrous pulp additionCalendersPolymer scienceThermal expansion
The present invention belongs to the field of synthetic fibre paper. In particular, it relates to a kind of synthetic fibre paper made up by using aramid fiber as structural fiber and utilizing polyphenylene sulfide fiber or granules through the processes of adhesive bonding and finalization. Said synthetic fiber paper possesses the excellent properties of light weight, high strength, resisting high temperature, resisting fatigue, resisting chemical corrosion, resisting radiation, high specific modulus, low thermal-expansion coefficient and good biological compatibility, and can be extensively used in the fields of electromechanical technology and aerospace industry. Besides, said invention also provides a wet preparation method for producing said synthetic fiber paper.
Owner:陶世毅 +3

Optical fiber wireless RoF passive optical network realizing method based on optical code division multiplexing

The invention discloses an optical fiber wireless RoF passive optical network realizing method based on an optical code division multiplexing (OCDM). In an optical line terminal (OLT) RoF center station, a signal realizes double-sideband modulation, three paths of generated carrier components are respectively modulated with wired and wireless user data and are not subjected to modulation. The signal is coupled to an optical fiber channel after coded by the OCDM, transmitted to an optical distribution network (ODN) and allocated to each optical network unit (ONU). The ONU carries out OCDM decoding on the received signal, then three paths of components are separated, one path of components is directly sent to a wired user terminal after subjected to photoelectric detection, the other two paths of components enter an RoF base station for carrying out beat frequency to obtain a radio frequency signal, the radio frequency signal is subjected to ECDMA (Electric Code Division Multiple Access) coding and transmitted through an antenna after subjected to electric amplification, and a wireless user terminal obtains a required signal through ECDMA decoding. The invention provides an effective path for realizing wired / wireless secrecy access in a PON (Passive Optical Network) system.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Method for erecting large-span lower chord variable truss high continuous steel trussed beam cantilever

The invention discloses a method for erecting a large-span lower chord variable truss high continuous steel trussed beam cantilever. Temporary buttresses are adopted in side-span steel beams to assist in semi-cantilever splicing and erection, and main-span full cantilever erection is conducted. The method specifically includes the steps that steel beam lifting stations are arranged at the positions of abutment piers, the temporary buttresses are arranged at the positions of corresponding joints of the side-span steel beams according to the main truss structure stress, the beams are lifted through the lifting stations and transported through a bridge floor, and an upper chord beam erection crane is used for erecting the steel beams joint by joint from the side span to the main span; and in the midspan closure process, the down-warping and the turning angle of the front end of a closure opening are adjusted through an abutment pier beam rising and falling method, and in combination with measures of longitudinal jacking and pulling of the steel beams and the like, the steel beams are closed with the high accuracy. By the adoption of the method for erecting the large-span variable truss high continuous steel trussed beam cantilever, the construction problem of striding over a river without a large-tonnage ship navigation condition and with a navigation requirement is solved.
Owner:STEEL STRUCTURE CONSTR CO LTD OF CHINA TIESUU CIVIL ENG GRP

Planer multiple degree of freedom controllable loading mechanism

The invention relates to a planer multiple degree of freedom controllable loading mechanism. The raise-rise arm of the loading mechanism is a planer single degree of freedom controllable mechanism, wherein one end of the raise-rise arm is hinged on the chassis, and the other end is hinged a bucket; and a bucket rollover mechanism is linked between the bucket and the chassis. By using the invention, the problem that the hydraulic system of the traditional hydraulic loading machine has high demand on parts and short service life and leaks oil, etc can be solved.
Owner:GUANGXI UNIV

In-orbit expansion-type satellite structure

The invention provides an in-orbit expansion-type satellite structure which comprises a plurality of satellite body modules with the same configuration arranged along circumference, wherein the adjacent satellite body modules are connected by an expansion-type truss, and a corresponding satellite body connecting and unlocking device is disposed between the adjacent satellite body modules; at a launch stage, the satellite body modules are connected by the satellite body connecting and unlocking device into a whole, so a satellite body is retracted and satisfies a demand for carrying and enveloping during the launch; when the satellite body enters an orbit, the satellite body connecting and unlocking device works to realize unlocking among the satellite body modules, and the satellite body modules realize in-orbit expansion under effect of the expansion-type truss; and during in-orbit work, in-orbit high-rigidity locking of the expansion-type truss is realized by a locking mechanism of the expansion-type truss. The in-orbit expansion-type satellite structure provided by the invention solves the contradiction between that the satellite body cannot exceed a carrying limit and that the satellite shall satisfy a structural configuration demanded by an in-orbit large load, and provides an engineering solution manner for subsequent applications of the large load.
Owner:SHANGHAI SATELLITE ENG INST

Technology for producing potassium chloride from carnallite

The invention discloses a technology for producing potassium chloride from carnallite. The technology comprises the following steps: determining a critical particle diameter of particles with the mostaverage content of the potassium chloride and selecting a standard screen mesh for sieving carnallite particles; sieving the carnallite particles into a primary oversize material and a primary undersize material by utilizing the standard screen mesh; adding a water amount for completely dissolving magnesium chloride into the primary oversize material to obtain a primary dissolving solution and primary mixed slurry; sieving the primary mixed slurry into a secondary oversize material and a secondary undersize material by utilizing the standard screen mesh; carrying out reverse flotation to obtain low-sodium carnallite and tail salt foam; adding the water amount for completely dissolving the magnesium chloride into the low-sodium carnallite to obtain a secondary dissolving solution and secondary mixed slurry; carrying out solid-liquid separation on the secondary undersize material and the secondary mixed slurry to obtain a crude potassium product; washing an obtained potassium chloride crude product to obtain a qualified potassium chloride finished product. The technology disclosed by the invention has the advantages of simplicity in operation, less investment, low energy consumptionand high yield and the quality of the prepared potassium chloride finished product is good.
Owner:ЦИНХАЙ СОЛТ ЛЕЙК ИНДАСТРИ ГРУП КО ЛТД

Large-size true triaxial hydraulic fracturing simulation test device and test method

The invention discloses a large-size true triaxial hydraulic fracturing simulation test device and a test method. The test device comprises a large-size true triaxial loading module, a hydraulic servopumping module, an acoustic emission positioning module, an infrared monitoring module, a sample loading and unloading module and a computer, wherein a loading plate is formed by combining an inner plate and an outer plate which are matched with each other through a spherical surface. The test method comprises the following steps of manufacturing and loading a test sample, and performing hydraulic fracturing simulation test, sample unloading, data processing and analysis and the like. The device and the method for a hydraulic fracturing simulation test of shale have the following advantages that the accuracy of a test result is not influenced by the sample processing size and the parallelism deviation, so that the requirements for the sample size processing precision are reduced, and thetest reliability is improved; a loading condition of the shale in a triaxial loading chamber in a test process can be monitored in real time; the fracturing conditions of the multi-size samples can bemet; and a high-speed camera is matched for a uniaxial hydraulic fracturing simulation test, the dynamic expansion rule of hydraulic cracks can be observed directly, and multiple purposes of one machine can be realized.
Owner:LIAONING TECHNICAL UNIVERSITY

Solid-liquid composite cast rolling machine for dual-metal-layer composite pipe

ActiveCN105149556AAchieve metallurgical compoundingSolve the requestMolten stateLiquid state
The invention provides a solid-liquid composite cast rolling machine for a dual-metal-layer composite pipe. The machine comprises a machine frame, a pouring unit used for aluminum liquid pouring, a pressing-down and balance adjusting device and a cast roller unit, and further comprises an annular flow distribution device and a guide support. The annular flow distribution device is covered with a heating device used for keeping metal liquid in a molten state. The cast roller unit comprises a first cast roller and a second cast roller which jointly form a circular hole, and a pipe base material to be composited enters the circular hole. The solid-liquid cast rolling forming technology is adopted for producing the dual-metal-layer composite pipe, and metallurgical bonding of dual metal interfaces can be achieved by combining the rapid solidification technology with the rolling technology. Compared with the prior art, cladding metal is poured in a liquid state, the problem that the requirements of traditional solid-solid composite technologies such as drawing composite, expanded connection composite and spinning composite for blank size and shape precision are high is solved, and the solid-liquid composite cast rolling machine has the beneficial effects of remarkably saving energy, being high in efficiency and short in process, and the like.
Owner:YANSHAN UNIV

Image identification-based round log counting method

The invention discloses an image identification-based round log counting method, in particular to a method for performing round log quantity statistics according to a multi-threshold segmentation result of an image, and belongs to the technical field of image processing. The method comprises the steps of extracting a background region from a preprocessed image firstly, then performing binarization on the preprocessed image by adopting a multi-thread segmentation method, and extracting an alternative round log region by adopting a linear segment and connected region search method; and processing the extracted alternative round log region by utilizing threshold segmentation, morphological operation and the like, finally extracting a connected region center which meets a round log condition, and performing counting. The method has low requirement on the round log shape, effectively solves the problems of non-uniform light conditions of outdoor shooting and the like, and has relatively high practicality and reliability.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Sign language translation video generation method and system based on deep learning

The invention discloses a sign language translation video generation method and system based on deep learning, and the method comprises the steps: carrying out the cyclic training of a variational auto-encoder model and an annular generative adversarial network model through a sign language video of a data set till a preset dimension is reached, and outputting an image low-dimensional feature sequence; training a language translation model through a language text sequence of the data set, and outputting a text low-dimensional feature sequence corresponding to the image low-dimensional featuresequence to construct a mapping relationship between the language text sequence and the sign language video; and based on the mapping relationship, inputting the language text sequence to be tested into the language translation model, mapping an image low-dimensional feature sequence corresponding to the language text sequence to be tested, and decoding the image low-dimensional feature sequence by the video model to generate a corresponding sign language video. According to the method provided by the embodiment of the invention, dimension reduction processing is carried out on the image by constructing the compressed hidden space, the extremely high requirements of a video generation problem on computer storage and calculation capabilities are solved, and translation training can be carried out by using a universal language model.
Owner:TSINGHUA UNIV +1

Dielectric-coating structure reflecting mirror used for chirp pulse amplification optical spectrum shaping

The present invention relates to a chirp pulse amplifying spectrum shaping dielectric film structure reflector, which comprises a transparent substrate, a high reflectance film system, an anaglyph structure and an external protective layer. Wherein, the high reflectance film system is composed of a plurality of staggered dielectric films. A high reflectance film layer and a lower reflectance film layer of the high reflectance film closely contact the anaglyph structure. The anaglyph structure can take a plurality of shapes, such as a micro-lens high transparency film system structure, an air dielectric structure, a glass anaglyph structure or other transparent dielectric structures, including semiconductor structures. As a high-power laser chirp pulse with a plane wave structure vertically casts onto the reflector, the laser passes through the high reflectance film system and the anaglyph structure and all residual lasers are reflected to back of the reflector through the transparent substrate. Reflex intensity distribution is modulated to a needed spectrum distribution structure. The reflector of the present invention can be inserted into any place of an amplifier link and improve capacity to distinguish shaping spectrum chromatic dispersion to a certain level. Scope modulation exceeds 60% without changing phase position, thus adapting to PW devices.
Owner:SICHUAN UNIV +1

Instrument and method for detecting density of numeral textile fabric

The invention discloses a digital fabrics density detector and a testing method, the device includes a host machine, a bracket with a perforation on the end face, which is equipped in front of the host machine, a fabrics amplifying component, a CCD photoelectric coupled device, an image conversion circuit as well as a display apparatus, the test method of the tester includes the following steps: first of all, tiling the fabrics on a flattening table-board; then, placing the digital fabrics density detector on fabrics, switching-on a lighting lamp in the optical system towards the fabrics; regulating brightness of lighting lamp and display screen till the fabrics image is clear; then, putting the edge line of the straight ruler parallel to the non-testing system yarns, selecting a scale line of a straight ruler in alignment with the reticle in the middle of the display screen and uses the reticle as the initial point, rotating a transversal transmission mechanism and moving the optical system, counting the number of yarns within prescribed measurement distance; finally, fetching five test regions on the fabrics randomly, repeating the test steps, figuring out the mean value of thread count.
Owner:SHANGHAI TEXTILE IND TECH SUPERVISION INST
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