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190 results about "Project structure" patented technology

Project Structure means a way in which the whole project administration and performance are organized – it may refer to a variety of project matters, including team, resources and work. For example a project management structure explains the hierarchy of the entire workforce involved in the project: who should report...

Underwater GPS positioning navigation method and system without high stable frequency scale

InactiveCN1547039AFlexible network layoutLighten the Burden of Underwater Acoustic Data TransmissionPosition fixationTransceiverDifferential signaling
The invention discloses a kind of underwater GPS allocation and navigation system and method without high stable frequency scale. The system is made up of GPS satellite constellation, four or more GPS floating marks, underwater navigation transceiver, data control centre, sea level wireless communication loop and hydroacoustics communication loop. The method is: when the object underwater needed to be located, the underwater navigation transceiver sends out hydroacoustics localization signal to the GPS floating mark, the floating mark transmits the hydroacoustics localization signal, the GPS signal and the posture calibration data wirelessly to the data control centre, and the data are processed with the difference signal, works out the position and time sending out the localization signal of the underwater object, the position and time data are transmitted to the underwater navigation transceiver by the hydroacoustics communication system, it can carry on navigation or time service. The invention can be applied to underwater object tracing, underwater localization and navigation, underwater precise timer service, measuring project control and project structure sample, it needs no high stable frequency scale.
Owner:CHINESE ACAD OF SURVEYING & MAPPING +1

Operating modal parameter identification method for principal component analysis on basis of wavelet threshold denoising

The invention relates to an operating modal parameter identification method for principal component analysis on basis of wavelet threshold denoising. Measurement noise in vibration response signals of a small damping mechanical structure can be effectively filtered out, the operating mode (a modal inherent frequency and modal vibration shape) of a system can be identified, operating modes (modal inherent frequency and modal vibration shapes) with small contribution amount in the response signal can be even identified, and a PCA modal parameter identification algorithm and physical significance interpretation and certification are endowed. The method is applied to three-dimensional operating modal parameter identification as well as equipment fault diagnosis and health condition monitoring. The invention further relates to an operating modal parameter analysis meter based on the method. Multiple vibrating sensors are arranged on key points of the mechanical structure, operating modal parameter identification is carried out on the vibration response signals obtained through measurement, changes of characteristics of the system structure can be understood, and the operating modal parameter analysis meter can be applied to fault diagnosis and health condition monitoring of large-scale project structures.
Owner:HUAQIAO UNIVERSITY

BIM-based dam project construction scheme integrated optimization method

ActiveCN107885935AThe construction process shows richThe construction process is displayed accuratelyGeometric CADHydraulic engineering apparatusData acquisitionTransportation planning
The invention provides a BIM-based dam project construction scheme integrated optimization method. The method comprises the steps that S1, a dam general project structure is established, dam main structure parameters are acquired, and an initial dam project digital model is established; S2, data partitioning is performed on stock ground raw materials used in a dam project; S3, data collection is performed on construction traffic planning of the dam project, and the quantity of vehicles, transportation capability and material transportation time are configured according to collected data; S4, parameter setting operation is performed on block stone according to the construction state of the dam project; S5, a dam face volume and stone block data are subjected to operation, and a constructionperiod of dam face stone filling is obtained; and S6, filling of gravel earth core wall materials of the dam project is performed, simulating computation is performed through all construction procedures, construction process information containing a dam body filling progress plan, resource consumption conditions and a traffic flow state is obtained, and the construction process corresponding to adesigned construction scheme is carried out more abundantly and more accurately.
Owner:CHENGDU XIMENG TEKE TECH DEV CO LTD

Velocity analysis method for seismic data with low signal-to-noise ratio

The invention discloses a velocity analysis method for seismic data with a low signal-to-noise ratio, relating to the technical field of seismic data processing in geophysical exploration. The velocity analysis method comprises the following steps: (1) selecting sections with a high signal-to-noise ratio and adopting velocity scanning to extract a velocity; (2) taking the velocity as the center, increasing and decreasing the velocity progressively at interval according to percentage, and scanning a plurality of stacked profiles with different percentage velocities in a variable velocity; (3) projecting structure interpretation horizons on the scanned stacked profiles with different percentage velocities; (4) setting velocity ranges with different horizons according to the structure interpretation horizon so as to constrain a pickup velocity; and (5) carrying out velocity pickup according to the imaging effects of the structure interpretation horizons on the stacked profiles with different percentage velocities. In the velocity analysis method, the technical problem of inaccurate velocity analysis caused by excessively little useful information in the seismic data with a low signal-to-noise ratio is overcome, so that the velocity analysis method not only is applicable to the conventional velocity analysis, but also is particularly applicable to velocity analysis in processing the seismic data with a signal-to-noise ratio.
Owner:BC P INC CHINA NAT PETROLEUM CORP +2

Coarse grid sunk well for physically processing waste water and construction method thereof

The invention relates to the technical field of underground project structures, in particular to a coarse grid sunk well for physically processing waste water and a construction method thereof. The coarse grid sunk well is a cavity structure which is formed by three layers of reinforced concrete structures. The structure of the first layer is a trapezoid, the left side and the right side of the trapezoid are provided with a plurality of connection pipelines, the upper part of the trapezoid is provided with a corresponding rectangular structure of the second layer, and the upper part of the rectangular structure of the second layer is provided with a corresponding rectangular structure of the third layer. The middle part of the coarse grid sunk well is provided with a horizontal partition, the coarse grid sunk well is divided into two groups of tank bodies through the partition, and the groups of the tank bodies are independently operated. Eight small lattices are arranged in the coarse grid sunk well, the sizes of the eight small lattices are different, and the gravity is offset. The construction method of the coarse grid sunk well comprises a step of preparing at early stage and a step of respectively constructing the three layers in batches. The invention has a simple and firm structure and wide application range, does not need arranging guide pipes and guide pipe platforms, does not need divers to work underwater, has visual concrete casting, controls the quality, saves the investment, improves the efficiency and reduces the risks.
Owner:中铁市政环境建设有限公司

Structure light micro-nano structure three-dimensional detection method based on composite grating

ActiveCN109916331ARealize online 3D detectionHigh-speed and high-precision 3D shape detectionUsing optical meansSinusoidal gratingMicro nano
The invention discloses a structure light micro-nano structure three-dimensional detection method based on a composite grating. The composite grating formed by a horizontal sinusoidal grating and a sinusoidal grating inclined at a certain angle theta projects structure light on a surface of a tested object. During a process of horizontal scanning of the object to be tested, CCD synchronously collects modulated fringe image sequences from a conjugate light path through a beam splitting prism. A grating line direction of a horizontal grating is vertical to a horizontal scanning direction, and ahorizontal displacement of an entire field modulation degree of the object is extracted and calcualted to realize high-precision pixel matching of the image sequences. An imaging focal plane positionof an inclined grating is inclined and fixed. During a horizontal scanning process, phase shift and vertical scanning can be realized continuously, automatically and synchronously. The inclined grating is used for single point modulation degree extraction of the object, and height information is acquired to realize high precision micro-nano three-dimensional detection. In the invention, the objectto be tested is horizontally scanned so that a large-range and high-efficient three-dimensional measuring process can be realized, and the method has a good application prospect in the micro-nano detection field.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Identity verification method and apparatus, and terminal device

The invention discloses an identity verification method and apparatus, and a terminal device. The method comprises the following steps: projecting structure light on the face of a user, and obtaining a structure light image of the face of the user; generating a three-dimensional model corresponding to the face of the user according to the structure light image; extracting corresponding facial feature information from the three-dimensional model; and matching the facial feature information with sample feature information in a preset facial three-dimensional model library, and determining that the user identity verification is successful in the case of matching success. According to the identity verification method and apparatus in the embodiment of the invention, the structure light is projected on the face of the user, the structure light image of the face of the user is obtained, the three-dimensional model corresponding to the face of the user is generated according to the structure light image, the corresponding facial feature information is extracted from the three-dimensional model, the facial feature information is matched with the sample feature information in the preset facial three-dimensional model library, and it is determined that the user identity verification is successful in the case of matching success, so that the identity verification accuracy is improved, and the identity verification mode is richer.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Program readability analysis method based on WordNet

The invention discloses a program readability analysis method based on a WordNet, and belongs to the field of software engineering. The program readability analysis method based on the WordNet comprises the following steps that (1) each method body is traversed according to a package name-class name-method name project structure, and is labeled in a package name-class name-method name mode; (2) warning annotations and TODO annotations are removed, wherein each warning annotation usually appears in a testing case and is used for warning a programmer that a certain serious consequence can happen, each TODO annotation indicates a piece of work, and the programmer thinks that the work should be done, but the work is not done at present for some reasons; (3) the annotations are divided into short annotations and long annotations; (4) the long annotations are preprocessed, and subject terms of the long annotations are extracted through the WordNet; (5) subject terms of codes are extracted from code segments mapped by the annotations through the WordNet; (6) a program readability analysis tree is generated for a whole project, and final analysis data are formed. According to the program readability analysis method based on the WordNet, a later-period maintainer can conveniently comprehend an unfamiliar project, and the program readability analysis method based on the WordNet can be used for maintenance and development of software.
Owner:YANGZHOU UNIV
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