32results about How to "Comprehensive calculation results" patented technology

The invention discloses a distribution system security region boundary calculation method based on a feeder interconnection relationship. The method comprises the following steps of establishing a distribution system security region model based on the feeder interconnection relationship according to main transformer N-1 and feeder N-1 constraint conditions; calculating a distribution system security region boundary according to the distribution system security region model; and evaluating the security of a distribution system through the distribution system security region boundary. The method has the advantages that the existing security region boundary calculation method is enabled to be further precise, the interconnection relationship between main transformers and feeders can be simultaneously reflected, main transformer N-1 and feeder N-1 faults are simultaneously calculated, the method provides a theoretical support for more precise, safe and high-efficiency operation of a distribution network, the online real-time security monitoring, defense and control of the distribution system are enabled to become more comprehensive and precise, and preconditions are provided for further improving the level of line and main transformer load rate to a precise N-1 security limit. Under the background of future intelligent power grids, the method has a great application prospect.

An urban green land vegetation information datamation accurate determination method comprises the steps of collecting high-resolution panchromatic images, hyperspectral images and thermal infrared images in a target area, obtaining approximately continuous spectral reflectance of different plant species, enhancing the ability to detect ground feature attribute information, and combining texture features of the high-resolution panchromatic images to accurately position and recognize plant contours, and detecting the plant temperature through thermal infrared data. The method can determine and identify plant species types, obtain geographical position, area, chlorophyll, carotenoid, anthocyanin and temperature information of urban green land plants, and also can obtain crown projection areasand crown projection perimeters of trees and shrubs. An object-oriented greenbelt vegetation accurate measurement method is proposed for the first time, and urban greenbelt information in a large-area range can be rapidly and accurately measured. Compared with most inversion models based on pixels, the method has the advantages that the calculation result is faster, more accurate and more comprehensive.

The invention provides a Live broadcast room recommendation method, a storage medium, an electronic device and a system, which relate to the big data recommending field and can recommend a recommending live broadcasting room of user preference according to a designated live broadcasting room, the method in particular comprising the following steps: calculating quality scores of N live broadcastingrooms according to a preset live broadcasting room quality scoring process, wherein N is an integer greater than 1, and the N live broadcasting rooms are a live broadcasting room group to be scored.A similarity of a common label between each of the live broadcast groups to be rated and a designated live broadcast is calculated. The similarity between the quality score and the common label is inputted into the preset recommendation index algorithm to obtain the recommendation index of each live broadcast in the inter-broadcast group to be graded. A live broadcast room whose recommendation index exceeds a preset recommendation index threshold is used as the recommendation live broadcast room, or the recommendation index is sorted, and a preset number of live broadcast rooms in front of thesorting are used as the recommendation live broadcast rooms. The invention can better calculate the similarity between live broadcasts.

The invention relates to a pore-exploration and pore-forming device and method for soil stratum ground stress testing and application of the pore-exploration and pore-forming device and method. The pore-forming device comprises a negative pressure soil pumping mechanism, a soil pumping pipe and a soil cutting mechanism, wherein the soil cutting mechanism communicates with the negative pressure soil pumping mechanism through the soil pumping pipe, and soil cut by the soil cutting mechanism is pumped and then discharged by means of negative pressure difference of the negative pressure soil pumping mechanism. According to the pore-exploration and pore-forming device and method for soil stratum ground stress testing and the application of the pore-exploration and pore-forming device and method, steel shells are adopted for wall retaining, a specially made cutter is adopted for cutting soil, pores can be formed quickly through a geological pore-exploration and pore-forming technology of pumping soil through negative pressure, the disturbance on stratums is small, the pore diameter range can be adjusted, the construction cost is low, the construction safety is high, operation is easy andconvenient, and the pore-exploration and pore-forming device and method are suitable for unsaturated sandy soil (such as medium sand, fine sand and mealy sand) with the moisture content lower than 40% and unsaturated soil stratums (such as silt, silty clay and loess) with the moisture content lower than 50%. In addition, a soil stratum ground stress testing method provided by the invention is simple and reliable, can detect out initial ground stress, has great significance on numerical calculation of the soil stratums, and ensures that soil stratum numerical calculation results are more accurate and comprehensive.

The invention discloses a two-dimensional runoff restoration method for separating the influences of human activities. The two-dimensional runoff restoration method comprises the following steps: firstly, constructing a boundary-pansystems binary automaton model; secondly, determining input, output and internal state elements of a human activity-basin underlayer system; thirdly, calculating the influence quantity of the human activities on basin underlayer conditions; fourthly, obtaining indirect influence quantity of the human activities on the runoff; fifthly, determining input, output and internal state elements of a human activity-runoff system meeting the consistency of the underlayer conditions; sixthly, solving direct influence quantity of the human activities on the runoff on the basis of the constructed system analytic method for separating direct influences of the human activities on the runoff; seventhly, calculating natural runoff volume meeting the consistency of the basin underlayer conditions according to the calculated indirect influence quantity of the human activities on the runoff and the direct influence quantity of the human activities on the runoff. The two-dimensional runoff restoration method has the advantages of simpleness, easiness for operation, high calculation speed, high precision, and comprehensive and scientific calculation result.

The invention relates to a benefit compensation method and system for a cascade leading hydropower station. The system comprises a client layer, comprising a basic information management module, an optimization calculation module and a benefit compensation calculation module, a data server layer which is used for storing basic information data, dispatch calculation data and benefit distribution data and an external interface which comprises API, DBMS, URL and Web Service, wherein the basic information management module is used for managing and maintaining basic parameters and characteristic curves of the hydropower station, the optimization calculation module is used for calculating the increasing electricity output of the leading hydropower station in maximal cascaded generating capacity model for a downstream cascade hydropower station, and the benefit compensation calculation module is used for determining a final compensation benefit allocation method. The benefit compensation method and system for the cascade leading hydropower station consider not only conventional factors of hydropower station dispatching, but also the problem that a lot of river basins all face construction of large-scale water diversion projects, so that calculation results of the benefit compensation method are more comprehensive, and have broader practical values.

The invention discloses a distribution system security region boundary calculation method based on a feeder interconnection relationship. The method comprises the following steps of establishing a distribution system security region model based on the feeder interconnection relationship according to main transformer N-1 and feeder N-1 constraint conditions; calculating a distribution system security region boundary according to the distribution system security region model; and evaluating the security of a distribution system through the distribution system security region boundary. The method has the advantages that the existing security region boundary calculation method is enabled to be further precise, the interconnection relationship between main transformers and feeders can be simultaneously reflected, main transformer N-1 and feeder N-1 faults are simultaneously calculated, the method provides a theoretical support for more precise, safe and high-efficiency operation of a distribution network, the online real-time security monitoring, defense and control of the distribution system are enabled to become more comprehensive and precise, and preconditions are provided for further improving the level of line and main transformer load rate to a precise N-1 security limit. Under the background of future intelligent power grids, the method has a great application prospect.

The present invention discloses a metro shield tunnel forming tunnel portal measurement method, which comprises: 1, field data acquisition: 101, selecting measurement points, wherein M measurement points are selected on the inner edge of the tunnel portal to be measured according to requirements, and 102, measuring the measurement point position, wherein three-dimensional coordinates of each measurement point are measured, and measurement results are recorded; and 2, indoor data processing: 201, calculating the distance between each measurement point and the center line of the design path, and comparing the difference value, 202, calculating the end wall offset and the flatness, and 203, comparing the fitting tunnel portal center and the designed tunnel portal center, wherein the process comprises projecting, projection point grouping, circle fitting, fitting tunnel portal center point acquiring, tunnel portal center fitting precision calculating, and tunnel portal center offset acquiring. The metro shield tunnel forming tunnel portal measurement method has characteristics of simple step, reasonable design, easy achieving and good use result, and problems of high labor intensity, probable forming tunnel portal plane deviation calculating, and poor use effect of the existing tunnel forming tunnel portal measurement method can be solved with the metro shield tunnel forming tunnel portal measurement method of the present invention.

The invention discloses a method for establishing a numerical calculation model of an accumulation body slope using a stone-catapulting mechanism. By selecting a typical part of an accumulation body, a digital camera is used for image shooting to collect a batch of rocks; Extract and build a block library; then according to the size of the accumulation body provided by the survey data, use the catapult mechanism to build a real calculation model of the accumulation body; finally convert it into a graphic interactive file, and construct the model data of the corresponding geotechnical material for analysis calculate. In this design, the real calculation model of the accumulation body is constructed by constructing the block library, and then calling the block stone library data and randomly placing blocks to realize the real simulation of the composition of the accumulation body, which can effectively improve the accuracy of the calculation of the stability of the accumulation body, and in addition to In addition to calculating the stability coefficient of the accumulation body, it can also obtain relevant information parameters such as the stress and strain of the accumulation body, which has good practicability and promotion prospects.

The invention provides a carbon emission calculation method for vehicles passing through a road maintenance work area, which belongs to the technical field of carbon emission, and determines the characteristics of the road maintenance work area and traffic characteristics; determines the upstream road traffic capacity of the road maintenance work area, the road traffic capacity of the work area, and Downstream road traffic capacity; divide the road maintenance operation analysis period of the vehicle operation status distribution passing through the construction area; determine the carbon emission composition of vehicles in different operating states in the road maintenance operation area; calculate and total the carbon emissions composed of carbon emissions of vehicles in different operating states in the road maintenance operation area ;Calculate the carbon emissions of different operating states during the analysis period of road maintenance operations; calculate the carbon emissions of detoured vehicles during the analysis period of road maintenance operations; calculate the carbon emissions of vehicles passing through the maintenance operation area during the analysis period of road maintenance operations. The invention is used to effectively support the selection of low-carbon maintenance materials, equipment management, traffic organization and precise formulation of maintenance low-carbon emission reduction schemes for roads with different traffic characteristics.

The invention relates to the technical field of civil engineering, in particular to a three-dimensional static calculation method of an overhead pile-plate structure, comprising the following steps: establishing a three-dimensional static model of a pile-plate structure; inputting load parameters into the three-dimensional static force of the pile-plate structure model, and output the deformation and stress results of the pile-slab structure; check the deformation and stress results to determine the final structural parameters of the pile-slab structure. The three-dimensional static calculation method of the overhead pile-slab structure described in the present invention realizes the three-dimensional static calculation of the overhead pile-slab structure, inputs the load parameters into the three-dimensional static model of the pile-slab structure, and outputs the deformation of the pile-slab structure. The results and force results can reflect the three-dimensional deformation, multi-directional force and stress concentration of the structure, and provide designers with comprehensive and detailed calculation data and results. By checking the deformation results and force results, Thereby, the final structural parameters of the pile-sheet structure are determined.

The invention discloses a live broadcast room recommendation method, storage medium, electronic equipment and system, and relates to the field of big data recommendation, which can recommend the user's preferred live broadcast room for the user according to the specified live room, and specifically includes the following process: according to the preset The assumed live room quality scoring process calculates the quality scores of N live rooms, where N is an integer greater than 1, and the N live rooms are groups of live rooms to be scored. Calculate the similarity of the common label between each live room in the live room group to be rated and the specified live room. Input the quality score and the similarity of the common label into the preset recommendation index algorithm to obtain the recommendation index of each live room in the live room group to be rated. The live broadcast rooms whose recommendation index exceeds the preset recommendation index threshold are used as the recommended live broadcast rooms, or the recommendation indexes are sorted, and the preset number of live broadcast rooms with the highest ranking are used as the recommended live broadcast rooms. The present invention can better calculate the similarity between live broadcasts.

A supercritical flood risk analysis method comprises the steps of 1, determining the supercritical flood discharge on the water yield side for non-engineering measures of different projects; 2, determining the supercritical flood discharge on the water quality side for non-engineering measures of different projects; 3, determining the supercritical flood discharge on the coupling water yield-water quality side for non-engineering measures of different projects; 4, establishing a supercritical flood risk fuzzy subjection function for non-engineering measures of different projects (water yield side) and different water quality levels (water quality side) so as to obtain a supercritical flood risk fuzzy subjection function for the coupling water yield-water quality side; 5, bringing forward supercritical flood risk measurement with non-engineering measures of different projects, water quality difference and multiple variables considered comprehensively based on the Pearsion-III distribution theory and information entropy theory, and determining the supercritical flood risk. The method is higher in adaptability and logical, operation is easy, calculating efficiency and calculating precision are high, and a calculation result is more comprehensive and more scientific.

The invention relates to a pore-exploration and pore-forming device and method for soil stratum ground stress testing and application of the pore-exploration and pore-forming device and method. The pore-forming device comprises a negative pressure soil pumping mechanism, a soil pumping pipe and a soil cutting mechanism, wherein the soil cutting mechanism communicates with the negative pressure soil pumping mechanism through the soil pumping pipe, and soil cut by the soil cutting mechanism is pumped and then discharged by means of negative pressure difference of the negative pressure soil pumping mechanism. According to the pore-exploration and pore-forming device and method for soil stratum ground stress testing and the application of the pore-exploration and pore-forming device and method, steel shells are adopted for wall retaining, a specially made cutter is adopted for cutting soil, pores can be formed quickly through a geological pore-exploration and pore-forming technology of pumping soil through negative pressure, the disturbance on stratums is small, the pore diameter range can be adjusted, the construction cost is low, the construction safety is high, operation is easy andconvenient, and the pore-exploration and pore-forming device and method are suitable for unsaturated sandy soil (such as medium sand, fine sand and mealy sand) with the moisture content lower than 40% and unsaturated soil stratums (such as silt, silty clay and loess) with the moisture content lower than 50%. In addition, a soil stratum ground stress testing method provided by the invention is simple and reliable, can detect out initial ground stress, has great significance on numerical calculation of the soil stratums, and ensures that soil stratum numerical calculation results are more accurate and comprehensive.

The invention discloses an apparent crack geometric parameter visual measurement method, which comprises the following steps of: carrying out image acquisition and distance measurement, acquiring pixel precision, acquiring the pixel precision, acquiring the nearest distance between a pixel of a crack without a skeleton region and a skeleton; s5, acquiring the distance between the pixel of the crack edge removal area and the skeleton, marking the coverage part of the connection line of the two to obtain a corresponding marking array, acquiring the nearest distance between the pixel of the crack edge removal area and the skeleton, marking the coverage part of the connection line of the two to obtain a corresponding marking array, fusing the arrays marked in S4 and S5, performing color mapping, and exporting a measurement result. Measurement and calculation are carried out on the basis of a crack image of a related area acquired by image acquisition equipment, a crack width visualization result can be provided for people, and the average width, length and area of the crack can be measured and calculated; meanwhile, during image acquisition, a laser range finder is selected, the working distance of a camera is obtained, the image pixel precision is calculated in combination with the used focal length, and then the width of each position, the actual crack length value, the actual crack area and the actual average crack width value are calculated.