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33results about How to "Flexible data handling" patented technology

Quick difference value vector quantitative compression coding method of ultra-spectrum signal

The invention provides a quick difference value vector quantitative compression scheme of an ultra-spectrum signal, which comprises the steps of: in a Hadamard domain, constructing an initial code book of initial vector quantization, carrying out quick clustering, generating a final code book and an index of initial vector quantization; obtaining difference value image data from the restored image of the initial vector quantization and an original image to be used as an input vector of the difference value vector quantization, carrying out Hadamard transformation on the input vector; and constructing an initial code book of the difference value vector quantization, and carrying out quick clustering to generate a final code book and an index of the difference value vector quantization. The quick difference value vector quantitative compression scheme provided by the invention is combined with the Hadamard transformation property and the characteristic of reducing the quantization error by the difference value vector quantization; and compared with the traditional LBG algorithm, the quick difference value vector quantitative compression scheme has the advantages that under the condition of same compression ratio, the computing quantity can be greatly reduced, the image restoring quality can be improved, and the purpose of quick compression and coding is achieved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Sphericity measuring device and method based on machine vision technology

The invention relates to a sphericity measuring device and method based on the machine vision technology. The device comprises a base, a containing table, a background box, a control mechanism and animage collecting mechanism; a supporting base is installed at the bottom of the base, and multiple layers of rails are installed along at the top of the base along the peripheries; the image collecting mechanism comprises a top camera, a lateral camera and a camera support; the containing table comprises a containing frame, a containing base and an LED lamp belt, and the containing base is used for containing a to-be-measured object; the background box covers the containing frame, and multiple layers of circular second LED lamp belts are evenly distributed at the top of the background box; a lens of the top camera and a lens of the lateral camera extend into the background box from the top and the side face of the background box respectively and shoot an image of the to-be-measured object.Compared with a traditional measuring device and method, through the sphericity measuring device and method based on the machine vision technology, data processing is rapid and flexible, the scene anti-interference capacity is high, a composition error is small, the workload is small, the surface of the to-be-measured object cannot be damaged, the image of the to-be-measured object can also be well displayed, and the whole measurement information of the to-be-measured object is reflected.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Task decomposition and parallel processing method

The invention provides a task decomposition and parallel processing method. The invention relates to a data processing method of a power system. The current conventional single-thread processing mechanism cannot meet the high time efficiency and high concurrent data requirements of clients. The method provided by the invention comprises the following steps: an external system initiates a data request and analyzes object parameters; unit query data and non-unit related data are distinguished; a unified interface service platform of a power consumption information collection system further analyzes unit levels; a pre-configured decomposition rule is matched; unit differentiation is performed on municipal units; county-level units are converted into multiple levels; the number of processing threads is allocated according to the current resource situation of the system, and data extraction and organization works are executed; and for the decomposed external demands, the unified interface service platform of the power consumption information collection system informs the external system of a generated file name. The technical scheme can decompose a thread into multiple processes, make use of the idle resources of thread pool reasonably and improve the speed of information response.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +2

Monitoring platform suitable for combined cooling heating and power system and working method thereof

The invention discloses a monitoring platform suitable for a combined cooling heating and power system and a working method thereof. The platform comprises a field equipment control layer, a platform service layer and a monitoring data processing layer. The field equipment control layer is used for acquiring and controlling the field equipment operation state data of the combined cooling heating and power system in real time and transmitting the operation state data acquired in real time to the platform service layer. The platform service layer and the field equipment control layer intercommunicate. The platform service layer is used for storing the field equipment operation state data of the combined cooling heating and power system received in real time. The monitoring data processing layer is used for invoking the field equipment operation state data of the combined cooling heating and power system stored in the platform service layer and performing optimization processing. The optimized field equipment operation state data of the combined cooling heating and power system are fed back to the field equipment control layer by the platform service layer, and finally the combined cooling heating and power system is controlled to achieve the optimal operation condition by the field equipment control layer. The platform has great expansibility and universality so that operation efficiency is high and operation is safe and stable.
Owner:SHANDONG UNIV

Submarine sound signal synchronization moment calculation system based on buoy platforms as well as method

A submarine sound signal synchronization moment calculation system based on buoy platforms as well as a method are used for calculating a moment that the same submarine sound signal is received on different buoy platforms on the basis of a unified time reference. An accurate pulse per second provided by a GPS receiver is taken as a time reference, GPS universal time information is provided and used for synchronization moment calculation; and a digital signal processor is used for receiving the pulse per second and the GPS time information, and submarine sound signal synchronization moment calculation is performed. Data processing takes one second timed by a DSP timer as a processing cycle, a submarine sound data sampling point sequence number corresponding to the pulse per second signal and received in the second is taken as an accurate time alignment sign, and according to a relative relationship between the pulse per second and the GPS time information, a calculation formula for a synchronization moment of a submarine sound effective signal point is determined. The synchronization moment calculation method provided by the invention does not need to synchronize a local time to a GPS time and can be applied to the field of time unification of offshore multi-buoy submarine sound positioning systems requiring quick response.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES

A Compression Coding Method for Remote Sensing Signals Based on Multilevel and Fractal Vector Quantization

The invention discloses a high-spectrum signal coding method based on multilevel and fractal dimension vector quantization. The high-spectrum signal coding method comprises the steps: firstly carrying out a de-meaning operation on an input vector of first-level vector quantization, constructing an initial code book of the first-level vector quantization, and generating a final code book and codes of the first-level vector quantization; forming a vector by a reconstructed image of the first-level vector quantization and an original de-meaning image for fractal dimension treatment, forming an initial code book of second-level vector quantization by using data of each part as an input vector of the second-level vector quantization after fractal dimension operation, and implementing quick clustering by using a quick searching algorithm to generate a final code book and indexes of the second-level vector quantization of the data of each part. According to the high-spectrum signal coding method, by combining with de-meaning, vector fractal dimension and multilevel vector quantization, the target of reducing quantization errors is achieved, thus the compression ratio and image recovering quality can be improved, the calculating complexity of the algorithm can be greatly reduced, and the purpose of carrying out quick compressed encoding on a high-spectrum remote sensing signal is achieved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

A Distributed Data Analysis Control System

The invention relates to a distributed data analysis control system, mainly relates to the technical field of data analysis, including a data analysis module and a data processing module. The data analysis module sets containers to classify the data to be analyzed and divide them into several data containers; the data processing module includes several data processing units, the number of data processing units can be expanded and the number is the same as the number of data containers, each data processing Each unit is equipped with a processor to process the data in the container separately; the control module is respectively connected with the data analysis module and the data processing module, and controls the data transmission process according to the amount of data in each data container, and controls the data transmission process according to the results of each data processing. The degree of coupling controls its return process. The invention has the beneficial effects of improving the effectiveness of data use, shortening the calculation cycle, reducing the burden on the processor, and improving the efficiency of data analysis and execution; the accuracy of data analysis results and the speed of data processing are not affected by the amount of data.
Owner:广州市腾嘉自动化仪表有限公司

A Fast Difference Vector Quantization Compression Coding Method for Hyperspectral Signals

The invention provides a quick difference value vector quantitative compression scheme of an ultra-spectrum signal, which comprises the steps of: in a Hadamard domain, constructing an initial code book of initial vector quantization, carrying out quick clustering, generating a final code book and an index of initial vector quantization; obtaining difference value image data from the restored image of the initial vector quantization and an original image to be used as an input vector of the difference value vector quantization, carrying out Hadamard transformation on the input vector; and constructing an initial code book of the difference value vector quantization, and carrying out quick clustering to generate a final code book and an index of the difference value vector quantization. The quick difference value vector quantitative compression scheme provided by the invention is combined with the Hadamard transformation property and the characteristic of reducing the quantization error by the difference value vector quantization; and compared with the traditional LBG algorithm, the quick difference value vector quantitative compression scheme has the advantages that under the condition of same compression ratio, the computing quantity can be greatly reduced, the image restoring quality can be improved, and the purpose of quick compression and coding is achieved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
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