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70results about How to "Avoid calculation errors" patented technology

Gas reservoir carbon dioxide burying amount calculation method considering pore expansion and component action

The invention discloses a gas reservoir carbon dioxide burying amount calculation method considering pore expansion and component effects, and belongs to the technical field of carbon dioxide sequestration. The method comprehensively considers a pore expansion effect caused by CO2 injection, and establishes a pore expansion model by introducing a porosity pressure sensitivity coefficient; the pore expansion effect caused by the increase of the fluid pressure is effectively represented, so that the CO2 burying potential of the gas reservoir is more accurately evaluated. And secondly, a Peng-Robinson state equation is adopted, the thermodynamic interaction between CO2 and residual CH4 is considered, and the property change of the mixed gas is accurately represented. According to the method, the defect that a CO2-CH4 system is simplified into single-component gas when gas properties are calculated in an existing method is overcome, the calculation error of the CO2 structure burying amount caused by simplification is avoided, and meanwhile, the calculation error of the dissolved CO2 burying amount is reduced due to the fact that CO2 partial pressure calculation is more accurate.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Carbon emission management system for building energy carbon supervision platform

The invention relates to the technical field of carbon resource management, in particular to a carbon emission management system for a building energy carbon supervision platform, which comprises a carbon emission statistics module, a carbon emission calculation and evaluation module and a carbon planning module, the carbon emission statistics module comprises a carbon emission factor management sub-module, a real-time data sub-module, a historical data sub-module and a system data sub-module, the carbon emission calculation and evaluation module comprises a carbon emission calculation sub-module and a carbon emission reduction benefit analysis sub-module, and the carbon planning module comprises a carbon neutralization calculation sub-module and a dual-carbon process analysis sub-module. The invention provides a carbon emission management system suitable for a building energy and carbon supervision platform, which can connect the computational statistics, analysis and evaluation and planning and expectation processes of building carbon emission to form a complete building carbon emission management system, and on the basis of the basic data and functions of the energy and carbon supervision platform, according to the actual project requirements, the energy and carbon supervision platform can be used for energy and carbon supervision. And a comprehensive and clear carbon emission management service is provided for the user.
Owner:CHANGZHOU ARCHITECTUAL RES INST GRP CO LTD

Automatic construction system for financial data management

The invention discloses an automatic construction system for financial data management, and relates to the related technical field of financial data management, and the system comprises a user interface module which is used for providing an intuitive graphical interface, and enabling a user to construct an application process in a mode of dragging a component; the business logic module is used for calculating the production cost of the product and automatically generating an asset balance sheet, a profit sheet and a cash flow sheet; and the financial trend prediction module needs historical financial data as input, the user inputs financial data and related characteristics, and the model outputs a prediction result. An automatic data processing and report generating system can be rapidly constructed through an automatic tool, the labor burden is relieved, a low-code platform system allows a user to customize and adjust the financial process in a visual mode, the individual requirement can be met without compiling a large number of codes, and the user experience is improved. The LLM technology can provide natural language understanding and intelligent analysis ability, and assists non-professionals in deep financial insight and strategic decision making.
Owner:HANGYIN CONSUMER FINANCE CO LTD

GPGPU (General Purpose Graphics Processing Unit) thread block synchronization method and equipment based on thread lock and medium

The invention discloses a GPGPU thread block synchronization method and device based on a thread lock and a medium, and relates to the technical field of electric digital data processing. The method comprises the following steps: a thread block scheduling module allocates thread blocks for each stream multiprocessor and calculates a thread start ID (Identity) to maintain a corresponding thread lock table; analyzing whether a dependency relationship exists between the memory access request and a thread in the currently occupied thread block or not under the condition that the memory access requirement exists, and if yes, adding the memory access request with the dependency relationship to a lock queue; querying a thread lock state of a thread having a dependency relationship with the memory access request in a corresponding thread lock table so as to add the thread lock state to an entry state corresponding to the lock queue; and dequeuing the memory access request from the lock queue under the condition that the entry states of all the threads with the entries in the lock queue and the thread bundle having the dependency relationship are unlocked, and performing memory access according to the memory access request to realize synchronization of GPGPU thread blocks.
Owner:YUANQIXIN (SHANDONG) SEMICONDUCTOR TECHNOLOGY CO LTD

Method and device for detecting placement state of wafer in wafer box

The invention provides a method and a device for detecting the placement state of a wafer in a wafer box, which are applied to the detection of the wafer box, and the detection method comprises the following steps: obtaining a thickness standard value and an angle standard value of the wafer; scanning the wafer box by using a laser and a camera to obtain a three-dimensional shape of the wafer box; calculating the thickness and angle of each wafer in the wafer box by using a thickness calculation algorithm and an angle calculation algorithm according to the three-dimensional morphology; wherein the thickness calculation algorithm processes three-dimensional shape data through a point cloud downsampling method and a point cloud clustering method; and comparing the thickness and the angle of each wafer in the wafer box with the thickness standard value and the angle standard value to determine whether the wafers in the wafer box have overlapped wafers, inclined wafers and missing wafers. According to the invention, the technical problems that the scanning time is long and the production efficiency is influenced because the position of the wafer needs to be determined by scanning the interior of the wafer box point by point through a distance measuring sensor in the traditional Mapping operation are solved.
Owner:NINGBO RUNHUA QUANXIN MICROELECTRONICS EQUIP CO LTD

Method and system for evaluating consistency of multiple / time blood vessel segmentation results

ActiveCN119107327AUnderstand the characteristics of blood vessel size proportionsimprove accuracyImage analysisAlgorithmStatistical analysis
The invention provides a method and system for evaluating consistency of multiple / secondary blood vessel segmentation results, and the method comprises the steps: reading original data of a blood vessel data set and multiple / secondary blood vessel segmentation result matrixes, and randomly selecting two blood vessel segmentation result matrixes to calculate a union set, an intersection set and a symmetry difference; selecting any point in the symmetric difference, simulating a path diffusion process by using a convolution kernel to perform iterative growth, obtaining a spherical set under the constraint of a union set range and a given geodesic distance, and calculating an intersection of the spherical set and a union set of the blood vessel segmentation result matrixes and an intersection of the intersection and two / time blood vessel segmentation result matrixes; performing calculation and statistical analysis on each point to obtain a statistical result, and mapping the statistical result back to the original data and two / time blood vessel segmentation result matrixes; and thus, a statistical result of any two / time blood vessel segmentation result matrixes is obtained, and a visual processing result is output. The method can be used for measuring the performance of the blood vessel segmentation algorithm or comparing the differences among the blood vessel segmentation algorithms, and accelerates the development and verification process of the blood vessel segmentation algorithm.
Owner:SOUTHEAST UNIV

Method for improving solution speed of non-singularity electromagnetic scattering field of rotating sphere

The invention discloses a method for improving the solving speed of a rotating sphere non-singularity electromagnetic scattering field, and belongs to the field of electromagnetic engineering. Aiming at the electromagnetic scattering problem of a rotating structural body in the field of practical engineering, the invention provides a method for improving the non-singularity electromagnetic scattering field solving speed of a rotating body, and effective analysis of the rotating body is realized based on a moment method. A rotating structure body has important application value in electromagnetic radiation and scattering research due to geometric symmetry, but under the condition of long wavelength, a traditional surface integration method often has the problem of singularity, and numerical stability and precision are affected. Therefore, a method for effectively eliminating singular integrality and converting a dense matrix needing to be solved into a sparse matrix is designed, the calculation efficiency is remarkably improved, and the memory consumption is reduced. A non-singularity surface integral equation is obtained through derivation, simulation and numerical simulation are carried out through a specific electromagnetic rotating body device model, an efficient numerical solution is provided for the electromagnetic scattering problem, and the method has wide engineering application prospects.
Owner:XIAMEN UNIV

Accurate evaluation method for interactive aggregation adjustable capability of electric vehicle and power distribution network

The invention relates to the technical field of electric power system operation and control, in particular to an electric vehicle and power distribution network interactive aggregation adjustable capability accurate evaluation method, which comprises the following steps: firstly, based on a similar energy storage model, establishing a feasible region model of a single electric vehicle; secondly, preprocessing the data of the electric vehicle; next, based on the preprocessed data and the feasible region model of the single electric vehicle, establishing a polyhedron-based aggregation model; and finally, considering physical characteristics and combining with a polyhedron-based aggregation model to establish an aggregation feasible region model of the electric vehicle. According to the electric vehicle and power distribution network interactive aggregation adjustable capability accurate evaluation method provided by the invention, large-scale electric vehicles can be effectively aggregated to participate in energy and standby markets.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL

A method and device for detecting the placement status of wafers in a wafer box

The present invention provides a detection method and device for the placement state of wafers in a wafer box, which is applied to the detection of wafer boxes. The detection method includes: obtaining the standard value of the thickness and the standard value of the angle of the wafer; using a laser and a camera to scan the wafer box to obtain the three-dimensional morphology of the wafer box; according to the three-dimensional morphology, using a thickness calculation algorithm and an angle calculation algorithm to calculate the thickness and angle of each wafer in the wafer box; wherein the thickness calculation algorithm processes the data of the three-dimensional morphology through a point cloud downsampling method and a point cloud clustering method; comparing the thickness and angle of each wafer in the wafer box with the standard value of the thickness and the standard value of the angle to determine whether there are duplicate wafers, oblique wafers, and missing wafers in the wafer box. The present invention solves the technical problem that the traditional Mapping operation needs to use a ranging sensor to scan the inside of the wafer box point by point to determine the wafer position, resulting in a long scanning time and affecting production efficiency.
Owner:NINGBO RUNHUA QUANXIN MICROELECTRONICS EQUIP CO LTD

Method for evaluating running state of highway drainage system

The invention relates to the field of public facility management, in particular to a method for evaluating the running state of a highway drainage system. The method comprises the following steps: acquiring sensor data of different areas in real time, and calculating the displacement of the different areas; calculating the drainage efficiency of different areas based on the drainage amounts of different areas and the sensor data; based on the displacement, drainage efficiency and sensor data of the different areas, calculating the ponding depths of the different areas at the future moment; and based on the displacement, the drainage efficiency and the sensor data of the different areas and the ponding depths of the different areas at the future moment, calculating the operation state scores of the highway drainage system of the different areas, and further judging the operation state of the highway drainage system. The problems that the rainfall and drainage association of different areas is unclear, and the drainage capacity is difficult to evaluate are solved; the influence of rainfall intensity fluctuation on the stability of a drainage system is not considered, the drainage efficiency is difficult to accurately evaluate, and a traditional ponding prediction model may cause ponding depth prediction errors and decision delay.
Owner:HANGZHOU POLYTECHNIC

Driving all-in-one machine and output shaft multi-turn absolute position detection method thereof

The invention discloses a driving all-in-one machine and an output shaft multi-turn absolute position detection method thereof, and realizes accurate quantization of a multi-stage coding system state by obtaining a detection value of each stage of coding shaft and decomposing the detection value into a turn value and an in-turn remainder value based on a transmission ratio. A mapping relation from an upper first-level coding axis to a lower first-level coding axis is established according to the transmission ratio, and a mapping value is obtained after dimensions are unified, so that a comparable basis of upper-level coding data and lower-level coding data is established. By obtaining the difference value between the mapping value and the corresponding inner remainder value of the lower first-level coding shaft ring and comparing the difference value with the half-ring threshold value, the phenomenon of zero crossing point asynchronization caused by the gear clearance can be accurately identified. Dynamic compensation is carried out on the number of turns of the next first-level coding shaft based on a difference value comparison result, and reading deviation caused by the mechanical back clearance is effectively corrected. Finally, the multi-turn absolute position of the output shaft is synthesized based on the compensated number of turns of the coding shafts, so that the continuity and accuracy of position calculation are ensured, and position calculation errors caused by gear gaps are avoided.
Owner:KINCO ELECTRIC SHENZHEN

Brillouin sensing device based on optical parallel differential pulse pairs and working method

ActiveCN122429861BReduce processing linksImprove measurement efficiency
The application discloses a Brillouin sensing device based on optical parallel differential pulse pairs and a working method, and belongs to the technical field of optical fiber sensing. In view of the problem that the prior art is difficult to consider high resolution, high precision and fast measurement, the device used by the application comprises: an optical source module, which is used to generate an optical carrier; a first optical path module, which is connected with the optical source module and is used to receive the optical carrier and generate optical parallel differential pulse pairs containing anti-Stokes and Stokes components and having different pulse lengths as pump light through double-frequency double-sideband pulse modulation; a second optical path module, which is connected with the optical source module and is used to generate double-sideband probe light; and a sensing optical fiber, which is connected with the first and second optical path modules respectively and is used to receive the pump light and the probe light and directly complete signal differentiation in the optical domain through stimulated Brillouin scattering. Thus, high resolution, high precision and fast measurement are synergistically optimized, the gain / loss mechanism can be flexibly switched, and the scene adaptability is enhanced.
Owner:SHANDONG UNIV

Measuring tool for inclined strut of evacuation platform

The utility model belongs to the technical field of evacuation platform measurement, and provides an evacuation platform inclined strut measuring tool which comprises a horizontal ruler, a radian ruler, a telescopic mechanism and an arc-shaped positioning plate. The horizontal ruler is fixedly connected with the arc-shaped positioning plate, a sliding groove is formed in the bottom end of the horizontal ruler, a sliding block is arranged in the sliding groove in a sliding fit mode, the sliding block is fixedly connected with the radian ruler, one end of the telescopic mechanism is hinged to the radian ruler, and the other end of the telescopic mechanism is hinged to the arc-shaped positioning plate. The telescopic mechanism is provided with a graduated scale, and the arc-shaped positioning plate is used for being attached to the inner wall of a tunnel. The tool adopts a handheld design, the arc-shaped positioning plate leans against the arc surface of a tunnel, the angle and the length of the inclined strut can be quickly obtained by setting the length of the steel beam and then observing the scale data on the surface of the measuring scale, the data accuracy of the inclined strut of each platform is ensured, the calculation error is avoided, the accurate ordering production of the inclined strut is realized, and the material waste is avoided. Adjustment is not needed in field installation, and construction efficiency is improved.
Owner:CHINA RAILWAY 11TH BUREAU GRP ELECTRIC ENG CO LTD +1

Methods, devices, and equipment for monitoring surface deformation based on parameter search interval optimization

This invention relates to the field of data processing technology and discloses a method, apparatus, and equipment for monitoring surface deformation based on parameter search interval optimization. The method, based on the location information of multiple buildings in a geographic coordinate system and multiple SAR images, determines at least one building-related region and at least one non-building region within a target area. It then determines a first residual elevation search interval for the building-related region based on the roof elevation value of at least one target building within the building-related region; determines a second residual elevation search interval for the non-building region; and performs temporal InSAR phase calculation based on the first residual elevation search interval, the second residual elevation search interval, a preset deformation rate search interval, and multiple SAR images to obtain the surface deformation rate field and residual elevation field of the target area. This significantly improves data processing efficiency while ensuring the accuracy of the temporal InSAR phase calculation and obtaining accurate surface deformation rate and elevation fields.
Owner:SHENZHEN URBAN PUBLIC SAFETY & TECH INST CO LTD +1

Method for acquiring thickness and refractive index of film, test system, storage medium and application

ActiveCN121954923Aavoid discontinuitiesAvoid thermal driftPhase-affecting property measurementsUsing optical meansFrequency mixerRefractive index
The invention discloses a method for obtaining the thickness and refractive index of a film, a test system, a storage medium and application. The method for obtaining the thickness and the refractive index of the thin film comprises the following steps: obtaining an intermediate frequency signal carrying transmission phase information by using two groups of nonlinear transmission line terahertz frequency comb generators and a broadband mixer, and obtaining an actually measured phase curve based on the intermediate frequency signal; constructing an equivalent multi-optical-path interference model of the thin film, performing coherent superposition on multiple reflection components of a measured wave signal in the thin film in a complex field to obtain a complex phase of a total transmission field, and obtaining a phase-frequency change spectrum based on the complex phase as a model phase curve; and an error function of the model phase curve and the actually measured phase curve is constructed, and a parameter combination enabling the error function to take the minimum value is solved by scanning the parameter combination of the refractive index n and the thickness d of the thin film. According to the method, thermal drift or time drift of the phase is avoided, and then calculation errors caused by phase jump are avoided.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Prestress positioning mesh long rib automatic feeding device and feeding method

The invention relates to the technical field of steel bar feeding, in particular to an automatic feeding device and method for prestressed positioning mesh long ribs, and the method comprises the following steps: cutting a steel bar into a plurality of web long ribs and bottom plate long ribs according to a preset size, and then conveying the web long ribs and the bottom plate long ribs to a long rib conveying line; correlation sensors are arranged on the two sides of the long rib conveying line, and the actual length of the long rib is calculated according to the shielding time between the correlation sensors; according to the actual length, the control system controls the jacking device to convey the long ribs to the corresponding web long rib transfer chain or the corresponding bottom plate long rib transfer chain; the web long ribs and the bottom plate long ribs are conveyed to the welding tray; the feeding gantry grabs web long ribs or bottom plate long ribs and places the web long ribs or the bottom plate long ribs to the corresponding positions of the welding tray. The correlation sensors are arranged on the long rib conveying line, whether the length of the reinforcing steel bars meets the requirement or not is detected by combining the blocking time of the correlation sensors, graded conveying is conducted, the situation that the reinforcing steel bars are blocked or deviated due to conveying and follow-up procedures are affected is avoided, and the whole process is high in automation degree and good in safety.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1

Pseudo-range independent positioning method and device for low-orbit satellite, electronic equipment and storage medium

The invention provides a low-orbit satellite pseudo-range independent positioning method and device, and relates to the technical field of satellite positioning, and the method comprises the steps: obtaining a pseudo-range observation value between a reference satellite and a receiver, and carrying out the analysis according to the pseudo-range observation value, and obtaining the initial positioning of the receiver; fitting the initial positioning to obtain a first pseudo-range positioning; and performing state estimation according to the first pseudo-range positioning and the state transformation related parameters to obtain second pseudo-range positioning. Through the pseudo-range observation value of the low-earth-orbit satellite, the initial positioning of the receiver is obtained by using a direct position calculation algorithm in combination with iterative least squares, and the subsequent position of the receiver is estimated in combination with state transformation related parameters, so that a steady low-earth-orbit satellite positioning technology is realized, the problem of calculation errors during low-earth-orbit satellite positioning is avoided, and the positioning accuracy of the low-earth-orbit satellite is improved. And the accuracy of low-orbit satellite positioning is improved.
Owner:CHINA SATELLITE NETWORK EXPLORATION CO LTD

Waybill-free express cargo identification system based on data labels

The invention belongs to the technical field of cargo transportation systems, and particularly relates to a waybill-free express cargo identification system based on data labels, which comprises a data acquisition module and a model training module, according to the invention, through combination of the image and the sensor data, real waybill-free operation is realized, and a user does not need to manually fill in a paper waybill. The design not only improves the operation efficiency, but also conforms to the digital and paperless development trend of the modern logistics industry. A traditional system often depends on paper waybills or needs to manually input a large amount of information, and operation is tedious. A user interface and a feedback module are designed in the system, a user is allowed to confirm and correct an identification result, and feedback data are used for subsequent model retraining and optimization. The self-improvement mechanism enables the system to continuously learn and improve the recognition accuracy. However, many existing systems lack an effective user feedback mechanism and are difficult to realize continuous improvement.
Owner:TIANJIN CHELACHE TECH DEV CO LTD

A battery pack information collection system based on terminal control

The present invention discloses a battery pack information acquisition system based on terminal control; the system comprises a main control module, the main control module is electrically connected to a data processing module, the data processing module is electrically connected to a BMS management system and a communication module, the BMS management system is electrically connected to a battery module, the main control module is electrically connected to an electric power device, and the communication module is communicatively connected to a remote terminal module. The present invention manages and controls the battery module through the BMS management system, and then calculates and processes the data information through the data processing module, calculates and processes the power supply mode of the battery module through a greedy algorithm to achieve a balanced and stable power supply mode, and evaluates the power supply mode through a neural network algorithm to prevent calculation errors. Finally, when errors occur in the data information, the data information is corrected and eliminated to improve the accuracy and validity of the data.
Owner:ANHUI GUOXUAN XIANGLU TECH CO LTD

A method and system for evaluating the consistency of multiple / subsequent vessel segmentation results

ActiveCN119107327BUnderstand the characteristics of blood vessel size proportionsimprove accuracy
This invention provides a method and system for evaluating the consistency of multiple / subsequent vessel segmentation results. It involves reading the original data of a vessel dataset and multiple / subsequent vessel segmentation result matrices, then randomly selecting two vessel segmentation result matrices to calculate their union, intersection, and symmetric difference. Any point in the symmetric difference is selected, and iterative growth is performed using a convolution kernel to simulate a path diffusion process. Under the constraints of the union range and a given geodesic distance, a spherical set is obtained. The intersection of this spherical set with the union of the vessel segmentation result matrices and the intersection of this intersection with the two / subsequent vessel segmentation result matrices are calculated. The above calculations and statistical analysis are performed on each point to obtain statistical results, which are then mapped back to the original data and the two / subsequent vessel segmentation result matrices. This yields the statistical results for any two / subsequent vessel segmentation result matrices, and the visualized results are output. This invention can be used to measure the performance of vessel segmentation algorithms or compare their differences, accelerating the development and verification process of vessel segmentation algorithms.
Owner:SOUTHEAST UNIV

A page configuration method, device, electronic device and storage medium

The present invention discloses a page configuration method, device, electronic device and storage medium, and relates to the technical field of web pages. The method comprises: in response to obtaining a page access request, obtaining window parameters and a target layout type of a page to be accessed; obtaining a corresponding target parameter calculation rule according to the target layout type; obtaining content area parameters of the page to be accessed according to the window parameters and the target parameter calculation rule, and configuring the page to be accessed according to the content area parameters. The technical solution of the embodiment of the present invention avoids the calculation error existing in manual calculation, saves the human resources consumed, and at the same time, the content area parameter assignment based on the parameter calculation rule, when the layout type in the page changes, can directly obtain accurate content area parameters based on the matching relationship between the layout type and the parameter calculation rule, thereby ensuring the accuracy of the content area parameters in the page after the layout type is changed, and improving the content display effect of the page.
Owner:DAWNING INT INFORMATION IND CO LTD +2

Abnormal chip positioning method and device in multi-chip transmission, terminal and storage medium

The invention discloses an abnormal chip positioning method and device in multi-chip transmission, a terminal and a storage medium, and relates to the technical field of chip detection. The method comprises the following steps: carrying out 3D-FFT calculation detection on a multi-chip machine for multiple times; and determining a plurality of transmission problem links according to the transmission error data during the subsequent 3D-FFT calculation detection for multiple times, and recording chips at cross points of the plurality of transmission problem links as abnormal chips. The invention provides an abnormal chip positioning method and device in multi-chip transmission, a terminal and a storage medium, and aims at a specific structure of a multi-chip machine system, 3D-FFT calculation is adopted to screen a defective chip, and the defective chip in a multi-chip machine can be quickly positioned, so that a designer can replace the defective chip in time, and the working efficiency of the designer is improved. Subsequent calculation errors can be avoided, and the design efficiency is improved.
Owner:SHANGHAI SMARTLOGIC TECHNOLOGY LTD

Tire extrusion cutting force fitting data processing method

PendingCN122545234AAccurately calculate destructive energyImprove reliability
This invention belongs to the field of tire damage resistance testing technology and discloses a method for processing tire compression and cutting force fitting data. The steps are as follows: the tire to be tested is fixed on the loading device and calibrated; a vertical compression force is applied at a constant speed, and force and displacement data from the loading start point to the cord breakage are collected. The fracture node is determined by the sudden change in the force sensor signal; after preprocessing the data, a force-displacement curve is plotted, and linear and rapid growth regions are divided; the breaking energy is obtained by piecewise fitting and integration, thereby evaluating the tire's compression and cutting resistance. This invention adopts a piecewise fitting method for the tire compression and cutting force-displacement curve, and selects an appropriate function model for different stress deformation stages such as elastic deformation and plastic failure, avoiding the calculation error of a single fitting model. It can accurately calculate the tire breaking energy, realize the quantitative evaluation of compression and cutting resistance, and fill the industry gap of no dedicated quantitative evaluation method in the existing technology.
Owner:SHANDONG LINGLONG TIRE CO LTD

A satellite atmospheric perturbation measurement method and device

The present invention discloses a satellite atmospheric perturbation measurement method and device. The method includes: obtaining the satellite coordinates, satellite speed and current time of the satellite based on Beidou positioning and timing functions; obtaining the satellite measurement attitude information and solar sailboard rotation angle information of the satellite; determining the total perturbation of the satellite in the inertial coordinate system according to the satellite coordinates, satellite speed and current time; determining the non-spherical gravitational perturbation corresponding to the satellite according to the satellite position and the third-party gravitational field model; determining the daily gravitational perturbation and lunar gravitational perturbation corresponding to the satellite according to the solar coordinates and lunar coordinates at the current time; determining the solar light pressure perturbation corresponding to the satellite according to the current time, satellite coordinates, solar coordinates, satellite measurement attitude information and solar sailboard rotation angle information; determining the satellite atmospheric perturbation of the satellite according to the total perturbation, non-spherical gravitational perturbation, daily gravitational perturbation, lunar gravitational perturbation and solar light pressure perturbation. The present invention can improve the calculation accuracy of the atmospheric perturbation.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY

Real-time computing task management and scheduling method and system based on event driving

The invention discloses a real-time computing task management and scheduling method and system based on event driving, and the method comprises the steps: defining a plurality of real-time computing tasks, and configuring a dependency relationship among the plurality of real-time computing tasks; obtaining a calculation result of the real-time calculation task and writing the calculation result into a data storage system; capturing a log event of which the calculation result is successfully written, and storing the log event into a opentop ic queue of kafka; the data of the opentop ic queue is consumed, and the log event is distributed to a downstream real-time calculation task after the set delay time is over. By introducing kafka and a dependency relationship, data dependency management and calculation scheduling between real-time calculation tasks are realized. The system can dynamically schedule the execution of the task according to the actual availability of the data, so that calculation errors caused by inconsistent data are avoided. In addition, the system also has relatively high flexibility and expandability, and can be conveniently expanded to a more complex calculation scene.
Owner:BEIJING FUYOUDUODUO INFORMATION TECH CO LTD

Pixel information determination method and device, ar glasses and storage medium

The application provides a pixel information determination method and device, AR glasses and a storage medium, and relates to the technical field of computer vision. The method comprises the following steps: collecting a real-time scanning image in a current visual field range; determining a pixel range of a target object in the real-time scanning image and an included angle between a line of sight direction of the AR glasses and a vertical direction; converting the real-time scanning image into a target image based on the included angle, and determining a target region in the target image; the target image is a top view corresponding to the real-time scanning image; the target region comprises the target object; determining the number of each pixel in the target region within the pixel range and the number of each pixel in the target region. The application can improve the real-time performance and accuracy of pixel information determination.
Owner:SOUNDAI TECH CO LTD

Blockage flow shop group scheduling rapid evaluation method

The invention discloses a blocking flow shop group scheduling rapid evaluation method, relates to the technical field of shop scheduling, and constructs an inter-group and intra-group rapid evaluation method based on hierarchy according to the problem characteristics of blocking scheduling by taking a distributed blocking flow shop with starting time as an example. Comprising the steps that 1, the starting time # imgabs3 #, the completion time # imgabs4 # and the leaving time # imgabs5 # of a workpiece # imgabs1 # in a group # imgabs0 # on a machine # imgabs2 # are calculated; 2, the layer # imgabs8 # of the workpiece # imgabs7 # in the group # imgabs6 # is calculated; 3, the layer # imgabs11 # of the workpiece # imgabs10 # in the group # imgabs9 # is updated, and the offset # imgabs12 # is calculated; 4, the maximum completion time is obtained; wherein the number of the imgabs is 13 #, the number of the imgabs is 14 #, and the number of the imgabs is 15 #. Aiming at the problem of group scheduling of the blocked flow shop, the invention provides a method for quickly evaluating the maximum completion time target value, so that the calculation time is effectively shortened, repeated evaluation is avoided, the calculation cost is reduced, and meanwhile, the scheduling efficiency is remarkably improved.
Owner:LIAOCHENG UNIV

Simultaneous direct inversion method, system and equipment based on fluid sensitive factor and brittleness index, and storage medium

The invention discloses a simultaneous direct inversion method, system and equipment based on a fluid sensitive factor and a brittleness index, and a storage medium, and the method comprises the steps: obtaining an expression of a stratum reflection coefficient, obtaining an approximate expression of a first seismic record S (theta) according to the expression of the stratum reflection coefficient, simplifying the approximate expression of the first seismic record S (theta), obtaining a forward equation, and obtaining a forward inversion result of the first seismic record S (theta); and based on the forward equation, obtaining inversion results of the fluid sensitive factor F, the brittleness index BI and the density rho through an inversion algorithm. According to the method, high-precision parameters capable of reflecting reservoir fluid properties and brittleness characteristics can be obtained on the basis of a simultaneous direct inversion method of the fluid sensitive factors and the brittleness indexes, fluid identification and brittleness evaluation results of a unified scale can be provided, and a reference can be provided for reservoir fluid identification and reservoir transformation potential; and support is provided for depicting oil and gas reservoir space distribution and developing dessert areas.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Light supplement lamp control method and device, electronic equipment and computer readable storage medium

PendingCN119155556Areduce mistakesReduced calculation errors caused by errorsEnergy saving control techniquesEngineeringMobile device
The invention relates to a light supplement lamp control method and device, electronic equipment and a computer readable storage medium. The light supplement lamp control method is applied to the self-moving device, the self-moving device is provided with a light supplement lamp and an image acquisition module, the self-moving device is configured to run and / or work in a working area, and the image acquisition module is configured to shoot an image of the working area. The light supplement lamp control method comprises the following steps: acquiring a first scene image, and dividing the first scene image into a plurality of candidate area units; determining the environment brightness state of the first scene image based on the brightness information of the plurality of candidate area units; and correspondingly controlling the on or off of the light supplement lamp according to the ambient brightness state of the first scene image. According to the scheme of the invention, more accurate environment brightness state information can be obtained, so that the error of environment brightness state information identification is reduced.
Owner:POSITEC POWER TOOLS (SUZHOU) CO LTD

Method for model optimization and computing device

The invention provides a model optimization method and computing equipment, which are used for multi-engine edge computing equipment, and the method comprises the following steps: loading an original model structure of a computing model; splitting the original model structure to obtain a multi-engine model structure; inserting a synchronization operator into the multi-engine model structure to obtain a multi-engine synchronization model; and loading the multi-engine synchronization model to an edge computing device to execute model operation, the edge computing device comprising a plurality of computing engines, and the plurality of computing engines synchronously executing the multi-engine synchronization model based on the synchronization operator. According to the technical scheme, the data processing capacity of the multi-engine model can be optimized, the model execution efficiency is improved, and the complexity of the model development process is reduced.
Owner:SHENZHEN CORERAIN TECH CO LTD