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

A multi-dimensional data enhancement system uses large kernel filtering, decimation, and interpolation, in multi-dimensions to enhance the multi-dimensional data in real-time. The multi-dimensional data enhancement system is capable of performing large kernel processing in real-time because the required processing overhead is significantly reduced. The reduction in processing overhead is achieved through the use of low pass filtering and decimation that reduces the amount of data that needs to be processed in order to generate an unsharp mask comprising low spatial frequencies that can be used to process the data in a more natural way.

The invention discloses a light crude-oil circular gas-injection low-temperature oxidization experimental method and device. The experimental device comprises a modeling system, a circulating system, an analysis system and a personal computer (PC) monitoring system; the model system is used for simulating the oil reservoir pressure and for simulating an oil reservoir temperature, and the produced gas is sent into the analysis system through the circulating system; the analysis system is used for analyzing the composition of the produced gas and for sending the produced gas after being analyzed into the circulating system; the circulating system is used for returning the produced gas to the modeling system to realize the circular monitoring; and the PC monitoring system is used for monitoring the simulated oil reservoir pressure and the simulated oil reservoir temperature of the modeling system and for recording the gas composition which is circularly monitored by the analysis system. The method and the device adopts a circular gas injection way, so the problem that the experimental balance is broken because of the gas sampling analysis in the reaction system during the experimental process can be avoided.

The invention discloses a network data transmission method in the technical field of network communication. The method comprises a process of establishment and release of connection, a process of data transmission and a process of regular handshake, wherein the process of establishment and release of connection comprises that: a client initiatively transmits an initial message to a server to request establishment of connection; and the server authenticates and saves the connection information and enters a connection establishing state; the process of data transmission comprises that: the client and the server respectively transmit a data message to each other, and if the opposite side receives the data message, the client or the server continuously transmits the next data message, otherwise, the data message is retransmitted; and the process of regular handshake comprises that: the client and the server respectively transmit a heartbeat message to each other through a first network link and a second network link, if the opposite side receives the heartbeat message, the connection is normal; if the opposite side does not receive the heartbeat message, the heartbeat message is retransmitted; and if the first network link and the second network link are failed, the connection is determined to be interrupted. The invention provides a high-reliability high-real-time network data transmission protocol.

A method for estimating the pose of an unmanned aerial vehicle based on a combination of trapezoidal and circular landmarks belongs to the technical field of image processing. The method is as follows: Step 1, UAV binarizes landmark pattern imaging to segment landmark patterns, and removes isolated noise based on morphological filtering; Step 2, extracts landmark edges, and uses Hough transform to extract trapezoidal contour line information in landmarks , use the least squares method to fit the ellipse equation and calculate the ellipse parameters; step 3, estimate the attitude parameters of the UAV according to the ellipse parameters calculated in step 2; step 4, establish the UAV ground imaging model, and use the trapezoidal contour line information The coordinates of the four vertices of the trapezoid estimate the position parameters. The present invention aims at the problems of precise estimation of pose and autonomous landing in UAV visual navigation, based on the combination of trapezoidal and circular landmark patterns, estimating the attitude parameters according to the geometric imaging characteristics, simplifying the collinear equation solution model, and then solving the position parameters , the calculation process is simple and more suitable for practical engineering applications.

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 single 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.

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 phasor data processing system based on intelligent telecontrol, including: a PMU communication module, a WAMS master station communication module, a data buffer module, a dynamic wave recording storage module, an SDB bus interface module, etc.; wherein the PMU communication module Realize data communication with the PMU device, the WAMS master station communication module realizes data communication with the WAMS master station; the data cache module connected between the PMU communication module and the WAMS master station communication module stores the phasor data of several PMUs by The same time section is cached and sorted to form a real-time data frame of the whole station; the dynamic recording file storage module connected to the data cache module saves a dynamic recording file per minute at a preset rate; the SDB interface connected to the data buffer module The module converts the phasor data into floating-point data for storage, and establishes a unified access interface for the stored data. By adopting the invention, the data volume of high-frequency, high-real-time processing and synchronous phasor data of the intelligent telematics machine can be improved.