51results about How to "Improve real time" patented technology

The invention provides an integral realization method and a network structure of a bullet screen service. A data center and CDN nodes connected with the data center are disposed; any a CDN node receives a bullet screen from an input medium of a user, and sends the bullet screen to a service bullet screen server disposed by the data center for processing, and then sends the bullet screen to a historical bullet screen server disposed by the data center for storage, and the bullet screen is forwarded to output media connected to the CDN nodes of the user for display via all the CDN nodes connected to the data center; and the historical bullet screen server sends historical bullet screens of all videos to the CDN nodes for caching regularly, so that the user can use the output media to directly access the historical bullet screens, related to the videos, in buffer memory of the connected CDN nodes. The high-efficiency, high-instantaneity, multifunctional and multi-terminal bullet screen data scheme can be used to accelerate access of the user effectively and improve user experience.

The present invention provides an information interaction system of digital control processing workshop, wherein the information interaction system comprises an information interaction server, manufacturing executing software which is disposed on the information interaction server, and an information alternation terminal provided with a touch display screen. The manufacturing executing software realizes the information alternation. The manufacturing executing software comprises a data collection and information interaction module, a work order management module, a technical data management module, a pattern browsing and program transmission control module and a data statistics analysis module. The system can automatically display the work order and technical data on the information interaction terminal of each station in the production field dynamically according to the device number and employee number of operator. The operator can browse the technical data, download the digital control processing program and quickly collect the production data through the information interaction terminal. The invention realizes the dynamic transmission of field production information and quick collection of production data in the digital control processing workshop. The real-time implementation of workshop production control is increased. The quick response capability and production efficiency of production process of digital control workshop can be greatly increased.

The invention discloses a power supply data visualized monitoring system based on visualization technology. The system comprises a map visualization assembly which is used for marking actual geographic positions of buildings on a map according to map and building geographic position data; a pie graph visualization assembly which is used for expressing some numeric data (or statistic data) of a power supply system with circular area size and color; a coordinate visualization assembly which is used for visualizing multidimensional power supply attention data; a time point visualization assembly which is used for expressing discrete time series data; and a collaborative analysis assembly which is used for closely connecting each visualization assembly, so that when a user carries out different selection operation on different visualization assemblies, different visualization effects of the selected data can be displayed in real time in other assemblies correspondingly. The beneficial effects of the system are that data expression form is diversified, real-time performance is high and interactivity is high.

The present invention discloses a unit control mode dynamic conversion method based on real-time generation scheduling. The method comprises the steps of dividing the generating sets participating in real-time scheduling in a power grid into an adjusting unit, a buffer unit and a planning unit; evaluating the performance of the buffer unit comprehensively according to the adjustment capacity, the adjustment rate, the adjustment response time and the electric quantity complete schedule of the buffer unit; establishing an optimization model that the real-time generation scheduling and the real-time control are cooperative; solving the model by a mixed integer linear programming method, calculating the real-time plans of the generating sets and a control mode decision result of the buffer unit, and finally generating a conversion scheme of the control modes of the generating sets. The unit control mode dynamic conversion method based on the real-time generation scheduling of the present invention facilitates utilizing the adjustment capability of the generating sets fully, and enables the unit real-time control stationarity and orderliness to be improved.

The invention discloses a top air-injection gravity auxiliary driving oil-extraction two-dimensional physical simulation experiment system, comprising a sample injection system, a simulation system, an output system, a PC (personal computer) monitoring system and a gas chromatograph-mass spectrometer, wherein the sample injection system comprises an ISO (international standard organization) high-precision calculation pump, a dead oil piston container, a natural gas piston container and a sample preparer; the simulation system comprises the ISO high-precision calculation pump, a formation water piston container, an air piston container, a three-way valve, a high-pressure bin, an inclined angle marking device and a two-dimensional sand filling model; the output system comprises a separator, a helium tank and a gas meter; and the PC monitoring system comprises a PC monitoring computer and a gas flow quality controller. Through an experiment system disclosed by the invention, the consistency of a sample and in-place oil can be ensured so that an experiment result is more real and reliable, and an online monitoring function for samples of an output system is exerted, and the real-time and automation degrees are improved.

The invention discloses an embedded-type intelligent monitoring system for automatically detecting a moving target. The monitoring system comprises a video input device, a visual analytic system and a network input and output device. In order to detect the moving target with high precision on the highly real-time basis, the system adopts a method for realizing the real-time detection of the moving target by using a real-time visual analytical algorithm. The method is divided into two stages: a training stage and a detection stage. The obtained video data are divided into a stability area and a dynamic area by the system in the chroma and illumination space, the simple and rapid self-adopting signal Gaussian model is adopted in the stability area and the non-parametric model with complex calculations and high efficiency is adopted in the dynamic area. The system has the advantages of simple structure, high real-time degree and high precision, high expandability and multimeshed network access function, and effectively realizes the real-time detection function of the moving target.

A system for web-based graphical communication using HTML 5 WebSockets is described. The method enables multiple users to interact in a web-based environment by tracking and representing, in real-time, each other's messages, location, status, graphics and other gestures of communication.

This invention disclosures a six degree-of-freedom (DOF) measuring system and method. The measuring system comprises a tracking measurement device and a target. The tracking measurement device includes a processor, a camera and two rotation optical components connected with the processor respectively, which are arranged in sequence. The camera boresight and the optical axis of two rotation optical components are coaxial, and each rotation optical component can rotate independently. The target is mounted on the tested object, which contains at least three markers with known distance constraints. In addition, at least one marker does not coincide with the midpoint of the line connecting any two of the remaining markers. Compared with the prior technologies, this invention realizes a dynamic real-time measurement of six DOF for the tested object. In the process of measurement, only the target is fixed on the object. The target has the advantages of simple structure, less influence on the actual operation of the target and easy use. Meanwhile, the calculation process of 6 DOF measurement is simplified, and the real-time and reliability of the measurement method is improved.

The invention discloses an embedded intelligent monitoring system for automatically detecting moving target, including a video input device, a visual analysis system and a network input and output device. In order to perform high precision real-time detection of moving targets, the system adopts a method of using a real-time visual analysis algorithm to detect moving targets in real-time, and the method is divided into a training phase and a testing phase; the system will divide the obtained video data into a stable region and a dynamic region in the chrominance brightness spaces, adopting a simple and fast self-adapting single-Gaussian model to the stable region and adopting a computationally complex and effective non-parametric model to the dynamic region. The system has advantages of simple structure, high precision, real-time, strong expandability and multiplex network access function; and can effectively realization real time detecting function of moving target.

The invention provides a portable high-frequency surface wave radar wave height inversion method which comprises the steps of firstly performing channel calibration on two monopole cross loops, and utilizing a traditional Barrick method, and obtaining a wave height inversion result at a short-distance element position; then calculating the ratio between a one-order peak and a two-order peak of the radar, and performing orientation by means of a MUSIC algorithm; and finally fitting the ratio between the one-order peak and the two-order peak through using the wave height which is obtained through a Barrick method, and obtaining the final output wave height of the radar. The portable high-frequency surface wave radar wave height inversion method increases measurement precision and measurement distance of wave height. Compared with a common one-two-order peak ratio algorithm, the method does not require calculation of a fitting coefficient by means of prior information such as float and satellite so that the wave height and the wave field can be acquired in real time.

The invention discloses a visual target detection method for a detection robot. The method comprises the following steps of: constructing a hybrid attention adaptive sensing network; training the hybrid attention adaptive sensing network; and detecting the visual target of the detection robot by using the trained hybrid attention adaptive sensing network. The hybrid attention adaptive perception network comprises a global attention hierarchical network, a target space positioning network, a self-adaptive local attention sensing network and a target classification and identification network. According to the method of the invention, target positioning and identification tasks can be completed in a unified framework; the backbone networks are all based on weight sharing under a global attention mechanism, the advantages of a two-stage method and a one-stage method can be integrated; and high accuracy and low omission ratio are achieved while high real-time performance is achieved. The method and device are suitable for high-requirement working conditions of the detection robot.

The invention discloses a phasor data processing system based on intelligent telecontrol. The phasor data processing system comprises a PMU communication module, a WAMS master station communication module, a data caching module, a dynamic wave recording storage module, an SDB bus interface module and the like, wherein the PMU communication module is in data communication with a PMU device, the WAMS master station communication module is in data communication with a WAMS master station, the data caching module connected between the PMU communication module and the WAMS master station communication module enables phasor data of a plurality of PMUs to be cached and sorted according to cross sections produced at the same time so as to form real-time data frames of the full station, the dynamic wave recording storage module connected with the data caching module stores one dynamic wave recording file per minute according to a preset speed, the SDB interface module connected with the data caching module enables the phasor data to be converted into floating-point type data to be put in storage, and a uniform access interface is built for the stored data. The phasor data processing system based on the intelligent telecontrol enables an intelligent telecontrol machine to be capable of processing high-frequency, high-real-time-performance and large-data-quantity synchronous phasor data.

The invention discloses a particle filter integrated tracking method based on a support vector machine. The particle filter integrated tracking method based on the support vector machine comprises the following steps: establishing a support vector machine judging model based on a global gray feature; classifying candidate targets obtained by particle sampling; outputting candidate particles with higher reliability and taking the candidate particles with higher reliability as input of a block sparse generating model; establishing a generating model based on block sparse representation; shielding the input candidate targets and carrying out similarity measurement on the input candidate targets on the basis of reference information; and meanwhile, keeping apparent change of the targets updated by updating training samples of the support vector machine and the reference information of the block sparse model so as to realize stable tracking.

The invention discloses a breakpoint uploading method for a super-large video file. The method comprises the following steps that 1, enabling a Web terminal to upload the video file; 2, judging whether a video file exists in the Web end or not; step 3, carrying out multi-thread fragmentation uploading; step 4, combining the fragments; and step 5, circularly executing the steps 1 to 3 until no video file exists in the to-be-uploaded file queue. According to the method, a file search engine is introduced to store file information such as progress records, and all secondary uploads can be recovered easily. In addition, the elasticsearch has the advantages of being large in data storage capacity, distributed, high in expansion, high in real-time performance and the like, so that whether the retrieval file exists or not is faster than that of an existing method, and larger concurrency is supported.

The invention provides a medium-orbit relay communication networking satellite system and a communication method. The system at least comprises a medium-orbit relay satellite constellation, a ground station and an operation control system, the medium orbit relay satellite constellation comprises nine relay satellites on three orbit planes, the three relay satellites on each orbit plane are uniformly distributed, and the included angle between the three relay satellites and the earth center connecting line is 120 degrees; the three orbital planes are perpendicular to one another, one orbital plane is an equator orbital plane, and the other two orbital planes are polar orbital planes; every two relay satellites in the same orbit plane communicate with each other through an inter-satellite laser link, the relay satellites communicate with a ground station through a satellite-ground microwave link, and the relay satellites are both located in a medium orbit range. The satellite system provided by the invention can provide corresponding access services for a plurality of low-orbit spacecrafts with different data rates and different orbits; a high-real-time, high-coverage and multi-user space-based measurement and control and data transmission system is established without depending on an overseas satellite ground station, and the 100% global coverage real-time communication capability is achieved.

The invention relates to a weighted cosine similarity-based power consumption behavior abnormity analysis method for key personnel, which comprises the following steps of: marking information of key personnel through a demand department, selecting power consumption behavior analysis characteristics, collecting power consumption load identification data of the key personnel at the current moment and environment variable characteristic information at the current moment; according to the environment variable characteristic information at the current moment, obtaining corresponding historical electricity consumption behavior characteristics at the historical moment, performing weighted cosine similarity calculation on the current electricity consumption behavior characteristics and the electricity consumption behavior characteristics at the historical moment, obtaining the similarity degree of a historical day and a day to be detected, and setting a similarity threshold value; and when the historical data volume is larger, the feature selection is richer, and the obtained similarity is closer to the real power consumption behavior. According to the invention, the accuracy of abnormal behavior study and judgment can be effectively improved, and the efficiency is improved. And the sample similarity is reflected more accurately, so that the calculation result is closer to reality. And the supervision mode that supervision power is mobilized by a human center is reduced.

The invention discloses a universal platform-based real-time controller for multi-layer conjugate adaptive optics. The controller is a parallel processing hardware platform architecture provided for the multi-layer conjugate adaptive optics. The real-time controller is a control core of a multi-layer conjugate adaptive optical system and completes the image acquisition and preprocessing of a large-view-field Shack-Hartmann wavefront sensor, the slope calculation of sub-aperture images, slope interpolation, wavefront restoration, wavefront control, voltage output and other functions. Accordingto the real-time controller of the invention, a universal multi-core CPU is used as a computing platform; a non-real-time system is transformed into a real-time system on a Linux operating system; multiple parallel acceleration means are adopted; and therefore, the requirement of the real-time controller for the multi-layer conjugate adaptive optical system for real-time performance of 2000 Hz orabove is met. The real-time controller is suitable for the field of adaptive optics, and is of great significance to the engineering implementation of the multi-layer conjugate adaptive optical technology.

The invention discloses a communication network management monitoring method based on artificial intelligence, and the method comprises the following steps: 1, carrying out the analysis and processingof a manual operation flow in a mode of simulating a data interface through the artificial intelligence, and replacing the manual operation to automatically log in and enter a network management system; 2, calling an image acquisition tool to perform image acquisition on the current network management system; 3, performing image processing, noise reduction and feature extraction on the acquired image; 4, obtaining and analyzing the parameters through an image recognition algorithm based on a convolutional neural network (CNN), comparing the parameters with a preset threshold value, and judging whether the equipment is abnormal or not; and 5, improving the convolutional neural network algorithm through analysis of the convolutional neural network algorithm and comparison of the image recognition technology so as to improve the image recognition effect. According to the invention, the routing inspection efficiency of the distribution network communication network management can be greatly improved.

The invention provides a high-speed industrial communication system based on OFDM and a control method. The high-speed industrial communication system based on the OFDM communication system comprisesa plurality of node devices and at least one two-wire system field bus. Transmission ports of the node devices are connected to the two-wire system annular field bus. The plurality of node devices areconfigured to communicate with each other in an OFDM modulation mode. Each node device sends modulated data signals to the two-wire system annular field bus in a broadcast mode, and the other node devices directly receive the data signals from the two-wire system annular field bus. The two-wire system annular field bus based on OFDM is used so that the problem of network disconnection caused by accidental disconnection of bus nodes or transmission lines can be effectively solved, meanwhile, high multi-path interference resistance is achieved, and multi-user, high-real-time and high-reliability data transmission can be achieved.

The invention discloses a 2D laser radar SLAM map dynamic loading method and system, and the method comprises the steps: 1, obtaining a conversion matrix M of any point in a global coordinate x-y and an image coordinate u-v according to coordinate system information, scale resolution and selected angular point pixel information contained in a map picture stored in a 2D laser radar SLAM map; 2, dividing the map picture into a plurality of sub-maps Gi according to n rows and m columns, wherein the image width and height of each sub-map Gi are wi and hi respectively and obtaining a global coordinate corresponding to a pixel coordinate of a point j in the sub-map Gi by using the conversion matrix M; and 3, dynamically loading the sub-maps according to the divided sub-maps. According to the method, only one part of the map is loaded each time, and the remaining map is dynamically loaded according to the driving position, so that the consumption of system resources can be reduced, and the application scene is wider.