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759 results about "Statistical processing" patented technology

Statistical signal processing is an area of Applied Mathematics and Signal Processing that treats signals as stochastic processes, dealing with their statistical properties (e.g.,mean, covariance, etc.).

Statistical determination of historical oilfield data

InactiveUS20090194274A1Optimizing and increasing productionElectric/magnetic detection for well-loggingSurveyProduction optimizationOil processing
A method, system, and computer program product for performing oilfield surveillance operations. The oilfield has a subterranean formation with geological structures and reservoirs therein. The oilfield is divided into a plurality of patterns, with each pattern comprising a plurality of wells. Historical production/injection data is obtained for the plurality of wells. Two independent statistical treatments are performed to achieve a common objective of production optimization. In the first process, wells and/or patterns are characterized based on Heterogeneity Index results and personalities with the ultimate goal of field production optimization. In the second process, the history of the flood is divided into even time increments. At least two domains for each of the plurality of wells are determined. Each of the at least two domains are centered around each of the plurality wells. A first domain of the at least two domains has a first orientation. A second domain of the at least two domains has a second orientation. An Oil Processing Ratio is determined for each of the at least two domains, then an Oil Processing Ratio Strength Indicator is calculated. At least one Meta Pattern within the field is then identified. An oilfield operation can then be guided based either on the well and/or pattern personality or the at least one Meta Pattern.
Owner:SCHLUMBERGER TECH CORP

Device and method for automatic test and fault diagnosis of plane audio integrated system

The invention relates to a device and method for automatic test and fault diagnosis of a plane audio integrated system, which are used for maintaining the plane audio integrated system of Airbus series and Boeing series. The method comprises the steps of: operating test software by an industrial personal computer to provide a man-machine interaction environment, and carrying out analysis, computation and statistic treatment on acquired data so as to further complete fault diagnosis; compiling a fault diagnosis program according to all circuit diagrams and test point information of the audio integrated system, provided by a CMM (Capability Maturity Model for Software) manual, and clearing up injected data information on faults, excitation, response and the like to form a fault record in a fault dictionary; in the fault diagnosis program, providing the positions of testing points in need of manual measurement and corresponding test information; testing the testing points in need of manual measurement by detection personnel to confirm a fault area, and displaying corresponding diagnosis results. The device and method provided by the invention can commonly meet the requirement of the automatic test for two types of audio integrated systems including the AMU (Audio Management Unit) of Airbus series planes and the REU (Remote Electronic unit) of the Boeing series planes, and are favorable for reducing the labor intensity of maintenance personnel and improving maintenance efficiency.
Owner:CIVIL AVIATION UNIV OF CHINA

High-speed rail large-scale bridge performance evaluation method based on health monitoring data

The invention discloses a high-speed rail large-scale bridge performance evaluation method based on health monitoring data, which relates to the field of bridge engineering detection. The high-speed rail large-scale bridge performance evaluation method comprises the steps of arranging an automatic sensor hardware equipment system on a high-speed rail bridge in an optimized manner, achieving automatic data acquisition, carrying out denoise processing, time domain statistical processing, frequency domain processing and the like on measured data in sequence, and evaluating bridge running safety performance based on the health monitoring data. The high-speed rail large-scale bridge performance evaluation method meets the actual requirements of high-speed rail bridge detection and evaluation, can reflect the running safety of the high-speed rail bridge accurately and timely, and provides important guarantee for the safe running of high-speed trains; the evaluation results obtained through adopting the method are unified with the high-speed rail conventional detection and evaluation results, thereby facilitating the actual application of the method for the bridge managers; and decision-making suggestions for targeted bridge maintenance and repair are made on the basis of the evaluation results obtained through adopting the method, thereby being conductive to implementing timely maintenance and dynamic maintenance, and greatly improving the bridge overhaul efficiency.
Owner:SOUTHWEST JIAOTONG UNIV

Image search apparatus and image processing apparatus

Provided is an image search apparatus for searching for a search-target image corresponding to an input image from among a plurality of search-target images. This image search apparatus includes: a characteristic partial image detection unit for detecting a characteristic partial image of each search-target image based on a dissimilarity level of a partial image at a corresponding position among a plurality of search-target images; and a search unit for respectively calculating a level of coincidence between a characteristic partial image of each search-target image detected by the characteristic partial image detection unit and a partial image of an input image, and searching for a search-target image corresponding to an input image from among a plurality of search-target images based on the coincidence level. Additionally provided is an image processing apparatus which stores, in an image database, a plurality of images of the same location that have been picked up by the imaging apparatus. Statistical processing is performed to the plurality of images, using a statistical processing unit. Based on the result of the statistical processing, a representative image selection unit selects, as a representative image, a background image with the lowest dispersion among all pixels as an aggregate of pixels in which the brightness exceeds a prescribed value.
Owner:TOYOTA JIDOSHA KK

Method and device for estimating charge/discharge electricity amount of secondary cell

The present invention provides an apparatus that can estimate the charge / discharge electricity amount without being affected by current measurement error. If specific selection conditions are met, a no-load voltage calculation part (105) takes a plurality of pairs of data consisting of current data I(n) and voltage data V(n) corresponding to the current data and calculates a no-load voltage Vsep as the voltage intercept at a current of zero in a straight-line approximation obtained by statistical processing such as regression analysis using a least squares method with respect to the plurality of pairs of data. In addition, if specific current conditions continue to be met for a certain amount of time, an open circuit voltage calculation part (106) calculates the terminal voltage of the secondary battery as the open circuit voltage Voc. An estimated charge / discharge electricity amount calculation part (114) uses a preset change-in-voltage adjustment constant ΔVbc / adjustment coefficient Kb, change-in-electromotive-force constant Keq and polarization voltage generation constant Kpol to calculate the estimated charge / discharge electricity amount ΔQe as a function of the change ΔVb in the no-load voltage or the open circuit voltage over a predetermined period of time.
Owner:PANASONIC EV ENERGY CO LTD

Angular velocity sensor correcting apparatus for deriving value for correcting output signal from angular velocity sensor, angular velocity calculating apparatus, angular velocity sensor correcting method, and angular velocity calculating method

A measuring unit obtains measurement data of an object measured on the basis of a signal from a GPS satellite and angular velocity of an object output from an angular velocity sensor. An offset value computing unit estimates a running condition of the object on the basis of the measurement data and the angular velocity. The offset value computing unit sequentially derives temporary offset values while changing combination of the measurement data and the angular velocity in accordance with the estimated running condition of the object and, after that, executes statistical process on the temporary offset values, thereby deriving an offset value. An angular velocity conversion coefficient computing unit sequentially derives temporary angular velocity conversion coefficients on the basis of the measurement data and the angular velocity and, after that, executes statistical process on the temporary angular velocity conversion coefficients, thereby deriving an angular velocity conversion coefficient. An angular velocity converting unit derives final angular velocity on the basis of the angular velocity conversion coefficient, the offset value, and the angular velocity.
Owner:JVC KENWOOD CORP A CORP OF JAPAN

Method for bus origin-destination (OD) investigation by using mobile phone base station data and operating vehicle global position system (GPS) data

The invention provides a method for bus origin-destination (OD) investigation by using mobile phone base station data and operating vehicle global position system (GPS) data, comprising the following steps: 1) collecting mobile phone positioning data and bus GPS data; 2) transferring the mobile phone positioning data into travel information of users; 3) extracting characteristic values from the travel information of the users; 4) analyzing the extracted characteristic values to obtain basic travel characteristics; 5) matching bus travel information with the bus GPS data to obtain bus travel characteristics; and 6) carrying out statistical process on the obtained travel characteristics, and then outputting a population travel characteristic report form. The method is based on the mobile phone positioning data and the bus GPS data and then is used for performing a series of processes on the mobile phone positioning data and the bus GPS data, thereby automatically obtaining a high-quality, high-fineness and large time-span population travel characteristic reform form from a great amount of data, intelligently acquiring the population travel characteristics, reducing manpower and material resource consumption and improving the accuracy and effectiveness of the investigation.
Owner:广州通易科技有限公司

Live broadcast interaction method and device, electronic equipment and storage medium

The invention provides a live broadcast interaction method and device, electronic equipment and a storage medium. The method comprises the following steps: in response to an interaction initiation event for a virtual object in a virtual scene, determining an interaction component corresponding to the interaction initiation event and an interaction participation event corresponding to the interaction component; performing picture rendering corresponding to the virtual scene based on the interactive component to obtain a first live broadcast picture configured with the interactive component; sending the first live broadcast picture and the interactive participation event to present an interactive participation entrance corresponding to the interactive participation event in the first live broadcast picture; in response to an interaction event triggered through the interaction participation entrance, performing interaction data statistical processing based on the interaction event to obtain an interaction result; and sending a second live broadcast picture carrying the interaction result and corresponding to the virtual scene, so as to present the interaction result in the second livebroadcast picture and guide the virtual object to perform corresponding behavior control. In this way, the interaction real-time performance of the anchor side and the audience side for the virtual scene can be improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD
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