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668results about How to "Increase generation speed" patented technology

Block chain-based transaction business processing method and system

The present invention discloses a block chain-based transaction business processing method and system. According to the block chain-based transaction business processing method and system, a plurality of parallel block chain networks with the same participants are constructed for a block chain network, and business flow division control systems are constructed for the participants of the block chain network. The method includes the following steps that: when a user initiates a transaction request to a participant in the block chain network, the business flow division control system of the participant obtains the preset type transaction parameter of the transaction request and determines the identifier of a parallel block chain network corresponding to the preset type transaction parameter according to a pre-stored business flow division control parameter and a predetermined analysis rule; and the business flow division control system of the participant adopts the parallel block chain network corresponding to the identifier as a target block chain network for executing the transaction request and sends transaction parameters corresponding to the transaction request to the target block chain network for transaction processing. With the block chain-based transaction business processing method and system of the present invention adopted, the stability and efficiency of transaction business processing can be improved.
Owner:ONE CONNECT SMART TECH CO LTD SHENZHEN

Automatic vertical parking system and method based on multi-stage planning and machine learning

InactiveCN109131317AAdaptableReduce the number of orientation adjustments in placeView cameraSteering wheel
The invention provides an automatic vertical parking system and a parking method based on multi-stage planning and machine learning. The image is collected by a ring-view camera, and an ultrasonic sensor detects obstacle information to judge the position, heading information and the validity information of the storage location relative to the storage location. The automatic parking process is initiated when a suitable size and no vehicle-occupied space is identified. The automatic parking system plans the parking route according to the current self-parking posture and the information of the garage. If necessary, the automatic parking system uses multiple R-S curve is adjusted from the parking position to the proper position, and then the secondary helix parking trajectory is generated according to the learning network. The steering wheel, throttle and brake pedal are controlled electronically for parking and garage entry. The invention utilizes the secondary helix training set and thelearning network to improve the efficiency of the parking process and the adaptability to the path deviation, and combines R-S curve for multi-stage planning, to achieve a very small range of parkingplanning high success rate, a wider range of application, more reliable parking process.
Owner:TONGJI UNIV

Virtual machine mirror image generating method and device based on software preinstallation in cloud environment

The invention discloses a virtual machine mirror image generating method and a device based on software preinstallation in cloud environment. The virtual machine mirror image generating method and the device based on the software preinstallation in the cloud environment comprise that softwares which are uploaded by users are received and dependency of the uploaded softwares are checked, operating system configuration information which is submitted by the users is received and analyzed to obtain analysis results of the operating system configuration information. Basic environment which is necessary to install an operating system based on the software preinstallation technology is generated according to the analysis results of the operating system configuration information. A virtual machine start is started by using a virtual machine start configuration file in the generated environment and a monitoring progress is started at the same time. An operating system installation program is operated in the virtual machine and the operating system is installed in a non-interactive mode. Meanwhile, the monitoring progress judges whether the installation of the operating system is wrong or accomplished or not. When the installation of the operating system is wrong, the virtual machine is closed and temporary files in the basic environment are cleaned and internet protocol (IP) address is returned to an IP address pool. The virtual machine mirror image generating method and the device based on the software preinstallation in the cloud environment can solve defects of an existing manner, wherein the defects of the existing manner are insufficient in flexibility, low in speed, serious in source consumption and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

Auxiliary decision method for recovering group multiattitude of power system

The invention discloses an auxiliary decision method for recovering the group multiattitude of a power system. With the method, the recovery scheme of black start, net rack recovery and a load recovery stage can be generated and a plurality of candidate recovery schemes are sorted; the generation process of the recovery scheme is divided into three steps so as to ensure that the method is self-adaptively changed into a scheme by taking the safety of the system as an optimizing object when the recovery scheme by taking the recovery time as the optimizing object is infeasible; different important degrees of a decider can be considered for the provided group polymerization function and the requirement on the independence between the number and the attribute of the scheme is not strict; the recovery object and the recovery scheme of the recovery object can be determined on line according to the recovery condition of the current power grid and the flexibility and the feasibility of the recovery auxiliary decision of the system can be improved; and the auxiliary decision method is suitable for assisting in dispatchers dispatched to a province to recover the partition independent parallel recover stage at the initial stage of the system and the auxiliary decision of each subsystem when the serialization is recovered can provide the effective supplementation for the off-line preplan.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1

3D printing bionic porous biological ceramic artificial bone and preparation method thereof

ActiveCN111070376APrecise porosity controlGood molding propertiesAdditive manufacturing apparatusBone implantHuman bodyTissue fluid
The invention discloses a 3D printing bionic porous biological ceramic artificial bone and a preparation method thereof. A porous biological ceramic artificial bone model is designed through a TPMS and CSG combined method, slurry capable of being used for printing is prepared through biological ceramic powder and a binding agent, macropores and micropores are distributed in the porous biological ceramic artificial bone prepared through the combination with the 3D filament-free printing process, the pore diameter of the micropores is smaller than 100 micrometers, the pore diameter of the macropores is 200-800 micrometers, the total porosity is 20% to 80%, the communicating rate between the macropores is not lower than 99%, precise design of porosity, communication and homogeneity in the artificial bone is achieved, and meanwhile good pore communication is ensured. Adopted raw materials have good biocompatibility, entry passageways of cells and tissue fluid are provided by the macropores, the micropores can better adsorb tissue fluid nearby for cell growth, the cell growth speed and the new bone generation speed can be increased by combining the micropores with the marcropores, and application of the porous biological ceramic artificial bone in human body large bone defect repair clinic treatment is facilitated.
Owner:西安点云生物科技有限公司

Real-time transparent object GPU (graphic processing unit) parallel generating method based on three-dimensional point cloud

The invention discloses a real-time transparent object GPU (graphic processing unit) parallel generating method based on three-dimensional point cloud, which comprises steps of: (1) generating a background map of a nontransparent object; (2) generating geometric buffer of a transparent object, generating all three-dimensional points by a sphere generating way, utilizing hardware depth detection to acquire depth of an approximate plane, and simultaneously saving material information of the transparent object; (3) smoothing the depth, using the depth information in the geometric buffer to perform smooth filtering to the depth to acquire a smooth surface; (4) calculating thickness of the transparent object, generating all three-dimensional points, and utilizing hardware Alpha to mix and calculate the thickness of the transparent object; and (5) coloring the transparent object, using the depth and the material information to perform illumination computation to the transparent object, utilizing the thickness to calculate refraction and reflection properties of the transparent object, and utilizing the background map to finish coloring. The method avoids the surface rebuilding step in the traditional method, and can meet the requirement of real-time generation of a million-level transparent object based on point cloud.
Owner:BEIHANG UNIV

Self-absorption air type cyclone foaming device for dust removal of coal mine

The invention discloses a self-absorption air type cyclone foaming device for dust removal of coal mine. The device mainly comprises a foaming liquid supply pipe, a jet flow nozzle, an air suction mixing barrel body and a foaming barrel body, wherein the foaming liquid supply pipe is connected with the jet flow nozzle; an air suction chamber, an air and liquid mixing chamber and a diffusion foaming chamber are sequentially arranged inside the air suction mixing barrel body; the jet flow nozzle is connected to the air suction chamber; an air suction hole is formed in the air suction chamber; and a cyclone foaming chamber and a foam flow-out chamber are sequentially arranged inside the foaming barrel body. Foaming liquid with set pressure is sprayed at high speed through the jet flow nozzle to form turbulent jet flow; under the suction of the turbulent jet flow, air in the environment can automatically enter the air suction chamber through the air suction hole and is brought into the air and liquid mixing chamber from the air suction chamber to perform energy transmission and mass transmission; the accelerated and compressed air is crushed into air bubbles by liquid drops in the diffusion foaming chamber; and the preliminarily foamed flow is fully foamed in the cyclone foaming chamber. The self-absorption air type cyclone foaming device is simple in structure, convenient to operate, high in foaming rate, low in energy consumption, safe, reliable and low in running and maintenance cost.
Owner:CHINA UNIV OF MINING & TECH

Distributed algorithm for quickly establishing massive remote sensing image pyramid

The invention relates to the cross field of geographic information and information technology, in particular to a distributed algorithm for quickly establishing a massive remote sensing image pyramid applied to the construction of National Spatial Data Infrastructure. The method realizes the algorithm for quickly establishing the massive remote sensing image pyramid by means of data distribution storage and parallel computation capabilities based on a PC (Personal Computer) cluster, through the steps of dividing N*M grids, performing pyramid establishment task distribution and scheduling and pyramid establishment and correctly dividing grids and computing grid information, and by means of a communication transfer task between a control node and a computation node; and the method mainly aims to solve the related technical problem of how to divide the N*M grids, etc. The distributed algorithm for quickly establishing the massive remote sensing image pyramid has the following advantages that: based on the data distribution storage and parallel computation capabilities, the speed of generating the massive remote sensing image pyramid is increased; and the problem of black edges causedby image block documents crossing grids is solved; therefore, the purpose of increasing the pyramid establishing speed is achieved and the pyramid establishment accuracy is ensured.
Owner:EAST CHINA NORMAL UNIV

Method and equipment for generating preamble sequence

The invention discloses a method and equipment for generating a preamble sequence. The method comprises the following steps of: generating a frequency domain ZC sequence; determining a format and a time domain sampling point number of a target preamble sequence; performing inverse discrete Fourier transform of a corresponding preset small point number on the frequency domain ZC sequence according to the time domain sampling point number of the target preamble sequence to obtain a time domain sequence; performing interpolation on the time domain sequence, and converting the length of the time domain sequence into a length corresponding to the time domain sampling point number of the target preamble sequence; acquiring a phase rotation angle according to an initial position of the preset frequency domain resource; multiplying the time domain sequence with the converted length and the phase rotation angle, and performing phase conversion; performing corresponding subsequent processing on the time domain sequence with the converted phase according to the format of the target preamble sequence; and adding a cyclic prefix to the subsequent processed time domain sequence. The preamble sequence generating method disclosed by the embodiment of the invention avoids the occurrence of Fourier transform of a large point number so as to improve the operation speed, reduce the calculation quantity, improve the generating speed and reduce the power consumption and the circuit area at the same time.
Owner:合肥东芯通信股份有限公司

Parallelizing method of association analytical algorithm

The invention designs a novel parallelization scheme, particularly relates to a parallelizing method of association analytical algorithm in order to overcome the defect that a conventional association rule analysis algorithm Apriori cannot well adapt to parallelization. The parallelizing method includes blocking computation tasks via a master control node, allocating and distributing to various subsidiary computation nodes; parallelly computing via the various subsidiary computation nodes to screen frequent item sets, finally combining the nodes and returning results for statistics, and generating the frequent item sets; distributing the frequent item sets again and generating rules via various nodes. Since each computation node only processes a part of computation tasks, the problem that massive data cannot be processed by being read into an internal storage by one machine and processing speed is too slow is solved; the various nodes can be parallelly involved in processing, and processing efficiency is effectively improved; synchronous dependence, network communication overload, high frequency in I/O (input/output) operation among the nodes during computation are correspondingly improved, and scanning and computing speed of a database are improved.
Owner:NANJING UNIV OF POSTS & TELECOMM

Laminated double-sided multi-serpentine microchannel reforming hydrogen production reactor

The invention discloses a laminated double-sided multi-serpentine microchannel reforming hydrogen production reactor which comprises an upper cover board, a lower cover board, an evaporation plate, a plurality of upper reforming plates and lower reforming plates, wherein the plurality of upper reforming plates are arranged between the evaporation plate and the lower reforming plates; a flexible graphite pad is arranged between any two adjacent upper reforming plates; an evaporation cavity is formed in the upper surface of the evaporation plate; an inlet drainage cavity and an outlet drainage cavity, which are communicated with each other, are symmetrically connected with two sides of the evaporation cavity respectively; reaction cavities are formed in the centers of the upper reforming plates and the lower reforming plates; the inlet drainage cavity and the outlet drainage cavity, which are communicated with each other, are symmetrically connected with two sides of each reaction cavity respectively; reaction carrier sheets are arranged in the reaction cavities of the upper reforming plates and the lower reforming plates; and groove structures with a plurality of serpentine microchannels are symmetrically formed in the upper surfaces and the lower surfaces of the reaction carrier sheets respectively up and down. According to the laminated double-sided multi-serpentine microchannel reforming hydrogen production reactor, the specific surface area of the reaction carrier sheets can be significantly increased; adhesion of a catalyst is improved; and the reaction pressure drop can be effectively reduced, so that the alcohol conversion rate and the hydrogen production speed are improved.
Owner:ZHEJIANG UNIV

Digital PCR (polymerase chain reaction) chip and preparation method thereof

The invention provides a digital PCR (polymerase chain reaction) chip. The digital PCR chip comprises a droplet production module formed by laminating a cover glass and a glass substrate and a droplet collecting module tightly attached to one surface of the droplet production module, wherein two through holes including a liquid phase sample inlet and an oil phase sample inlet are formed in the cover glass; microflow channels communicated withthe liquid phase sample inlet or the oil phase sample inlet are etched in one surface, attached to the glass substrate, of the cover glass, each microflow channel is divided into two branch channels, and the branch channels pairwise intersect with droplet production ports; the droplet collecting module comprises a cavity with two opening sides, and the droplet production ports are all tightly attached to the inner side of one opening. The digital PCR chip is provided with the independent droplet collecting module, the PCR and the result observation are both performed in the chip, so that the probabilities of pollution and demulsificationare greatly reduced, meanwhile, results of the PCR are observed under a fluorescence microscope in a unified manner, signals reading of droplets is not required to be performed in the chip one by one, and the signal reading time is greatly shortened.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Method and device of video abstraction generation

The invention provides a method of video abstraction generation. The method of the video abstraction generation comprises steps of acquiring position information of an intention area appointed by a user, and determining an intention area; conducting prospect detection to an image in the intention area; tracking a detected target, and abstracting a motion trail of the target; and respectively stacking each frame image of the motion trail of the target to a corresponding setting, and generating a video abstraction. The invention further provides a device of the video abstraction generation. The device of the video abstraction generation comprises a user interaction module, a prospect detection module, a tracking module and a generating module, wherein the user interaction module is used for acquiring the position information of the intention area of the user, the prospect detection module is used for conducting the prospect detection to the image of the intention area, the tracking module is used for tacking the detected target and abstracting the trail of the target, and the generating module is used for respectively stacking each frame image of the motion trail of the target to the corresponding setting and generating the video abstraction. The method and the device of the video abstraction generation improve the generating speed of the video abstraction effectively.
Owner:TELEFRAME TECH BEIJING
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