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135results about How to "Troubleshoot inaccurate technical issues" patented technology

Method and device for measuring and calculating underground organic matter porosity degree

ActiveCN104237966AFix inaccurate calculation resultsImprove accuracyGeological measurementsEnvironmental geologyOrganic matter
The invention provides a method and device for measuring and calculating the underground organic matter porosity degree. The method includes the steps that multiple well points are selected in a research region, and a relation curve between the organic carbon recovery coefficient and the organic matter thermal evolution degree of the research region is obtained; the organic matter thermal evolution degrees of all the selected well points are obtained, and the following operations are conducted on all the well points: the original organic carbon weight percentage content of all the well points is calculated, the maximum organic matter porosity degree of the well points is calculated, the observation organic matter porosity degree of the well points is worked out, weighted averaging is conducted on the maximum organic matter porosity degree and the observation organic matter porosity degree of the well points, and the average organic matter porosity degree of the well points is worked out. By means of the method and device for measuring and calculating the underground organic matter porosity degree, the technical problem that in the prior art, measurement and calculation of the organic matter porosity degree are inaccurate in measuring and calculating result is solved, and the accuracy of the measuring and calculating result is improved.
Owner:PETROCHINA CO LTD

Determination method and device of horizontal well productivity under volume fracturing

The embodiment of the invention provides a determination method and device of the horizontal well productivity under volume fracturing. The determination method comprises the steps that the geologicalcharacteristic parameters of a target area in which a horizontal well is located under volume fracturing are obtained; the target area is divided into a first seepage area, a second seepage area anda third seepage area; a production cycle is divided into a first production stage, a second production stage and a third production stage; the horizontal well productivity of different production stages is determined separately according to the geological characteristic parameters and the seepage characteristics of different seepage areas at different production stages, and according to the scheme, the influence of complex fracture network structures and reservoir pores on seepage under volume fracturing is taken into account, and the target area is divided into the multiple seepage areas according to the specific structural characteristics; and then according to the seepage characteristics of different seepage areas at different production stages, the horizontal well productivity of different production stages is determined separately, so that the technical problem of determining the horizontal well productivity by existing methods is inaccurate is solved.
Owner:PETROCHINA CO LTD

Problem classification method and system based on multi-attention mechanism and storage medium

The embodiment of the invention provides a problem classification method and system based on a multi-attention mechanism and a storage medium, and belongs to the technical field of problem classification. The problem classification method comprises the steps of obtaining a to-be-classified text; converting the text into a corresponding word vector sequence by adopting a word2vec model; forming a word vector matrix based on a questionnaire attention mechanism according to the word vector sequence; performing part-of-speech tagging and encoding on the text by adopting a preset tagging set to form a part-of-speech vector sequence; respectively calculating the coefficient of each vector in the word vector sequence by adopting a formula (1); standardizing each coefficient by adopting a formula(2); determining a word vector matrix of a part-of-speech attention mechanism by adopting a formula (3); performing convolution operation on the two word vector matrixes to form a combined matrix; andinputting the combined matrix into LSTM to obtain a feature matrix with time sequence features, then obtaining feature vectors by using a self-attention mechanism, and determining the category of thetext according to the feature vectors.
Owner:HEFEI UNIV OF TECH

Conveying chain rotating platform rotation control method and rotation control device

The invention discloses a conveying chain rotating platform rotation control method and a rotation control device, which are applied in the field of steel coil conveying control. The conveying chain rotating platform rotation control method comprises the steps of receiving a rotation angle value fed back by a rotary encoder arranged on a rotary motor; after operating the rotary motor at a first rotary speed, judging the received rotation angle value to be within a preset switchover range; controlling the rotary motor to operate at a second rotary speed switched from the first rotary speed, wherein the second rotary speed is less than the first rotary speed; and after operating the rotary motor at the second rotary speed, controlling the rotary motor to stop operating switched from the second rotary speed if monitoring a starting signal of a target limit switch arranged on a rotating platform or judging the received rotary angle value is equal to a target angle value. The conveying chain rotating platform rotation control method and the rotation control device provided by the invention solve the technical problem that the rotating platform cannot rotate to a target stop position accurately, so that the rotating platform can quickly and accurately rotate to the target stop position.
Owner:SHOUGANG JINGTANG IRON & STEEL CO LTD

User physical ability score prediction method and device, electronic equipment and storage medium

The invention relates to the field of artificial intelligence, and discloses a user physical ability score prediction method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a user sample set containing basic information of a plurality of users, a plurality of physical ability item sample indexes corresponding to each user in a historical evaluation period and physical ability item sample scores corresponding to each physical ability item sample index; generating a user physical performance prediction model by using the user sample set; and inputting the basic information of a target user, the plurality of physical ability item indexes corresponding to the target user in the current evaluation period and the physical ability item score corresponding to each physical ability item index into the user physical ability score prediction model for feature learning to obtain the physical ability score of the target user in the future evaluation period. The technical problem of inaccurate body measurement result caused by incapability of flexibly selecting the user body measurement scheme according to the basic information of the user in the prior art is solved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Thin layer sedimentary microfacies inversion method and apparatus

The invention provides a thin layer sedimentary microfacies inversion method and apparatus. The method comprises the following steps: selecting multiple wells in a work area, and determining the stratum thickness, the response frequency, the response amplitude and the sedimentary microfacies type of the target stratum of each well among the multiple wells; establishing relations between sedimentary microfacies and the stratum thicknesses, relations between the stratum thicknesses and the response frequencies, relations between the stratum thicknesses and the response amplitude, relations between the sedimentary microfacies and the response frequencies and relations between the sedimentary microfacies and the response amplitude, and according to the determined relations, selecting three fusion frequencies and their respective sedimentary microfacies; and according to the sedimentary microfacies and fusion amplitude scopes which are respectively corresponding to the three fusion frequencies, performing RGB fusion on the three fusion frequencies to obtain a thin layer sedimentary microfacies inversion result. The thin layer sedimentary microfacies inversion method and apparatus provided by the invention solves the technical problem of inaccurate sedimentary microfacies obtained through prediction due to incapability of effectively determining three frequencies of fusion attributes in an RGB fusion technology in the prior art.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Calibration device and method based on trinocular vision system of statistics characteristics

The invention discloses a calibration device and method based on trinocular visions system of statistics characteristics. The calibration device of the trinocular vision system based on the statisticscharacteristics is composed of a visible light camera calibration surface and an infrared camera calibration surface; the calibration method of the trinocular vision system based on the statistics characteristics comprises the following steps: simultaneously shooting multiple groups of image sequences by the trinocular vision system with uninocular infrared and binocular visible light from multiple angles; firstly calibrating a binocular visible light camera; and then extracting a quasi-circle communication region in an infrared image by using gray statistics characteristics; and fitting a center point of the quasi-circle communication region according to the statistics characteristics; and replacing a right-eye image chessboard angular point by using the infrared center point, and performing secondary binocular calibration with the left-eye visible light image; and finally accomplishing the collaborative calibration of the trinocular vision system by using the geometric relation. Theprecise calibration of the trinocular vision system is realized, the operation is convenient, and the practical value is high.
Owner:HOHAI UNIV CHANGZHOU

Grounding resistance testing method and system of tower grounding device and terminal equipment

ActiveCN112285426AThe grounding resistance value data is accurateEasy to operateEarth resistance measurementsPower transmissionMechanical engineering
The invention relates to a grounding resistance test method and system for a tower grounding device and terminal equipment, which are applied to a power transmission tower. The current of the tower grounding device is measured by adopting a non-contact current measurement unit under three wiring modes and different voltage excitation signals to obtain three groups of current measurement values, and the three groups of current measurement values are analyzed and calculated to obtain the grounding resistance of the tower grounding device. According to the grounding resistance test method for thetower grounding device, the influence of mutual resistance is shielded in the measurement process by adopting three wiring modes, so that the obtained grounding resistance value data of the tower grounding device is accurate, and the technical problems that the tower grounding resistance is difficult to measure and the measured resistance value data is inaccurate in the prior art are solved. Thegrounding resistance testing device does not need on-site wiring in the process of measuring the grounding resistance of the tower grounding device, and the non-contact measurement enables the operation to be simple and is easy to implement on site.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID

Forest stand spatial pattern weighting method based on triangulation network model

The invention discloses a forest stand spatial pattern weighting method based on a triangulation network model, and the method comprises the steps: building a Delaunay triangulation network model through employing forest tree plane discrete points, and optimizing the triangulation network model; determining a forest space structure unit by utilizing the optimized triangulation network model; performing distance weighting on the forest space structure unit, converting the forest size attribute into a space attribute, and forming a weighted forest stand space distribution pattern; and quantifying and judging the weighted forest stand spatial distribution pattern. According to the forest stand spatial pattern weighting method based on the triangulation network model, the forest size attributevalues serve as the weights, the forest coordinates are converted in a distance weighting mode, and the generated weighting logic coordinates can visually reflect the strength of the mutual relationbetween the forests. The influence of the forest size difference on forest stand space structure evaluation is fully considered, and the technical problem that the forest stand space structure unit generated without considering the forest size difference in the prior art is inaccurate is solved.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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