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31 results about "Information gap" patented technology

Three-dimensional assembly process generation method and system for aerospace product

InactiveCN103413004AAddressing the information gapAccurate visualizationAnimationSpecial data processing applicationsAnimationInformation gap
The invention provides a three-dimensional assembly process generation method and system for an aerospace product. The system comprises a three-dimensional manufacturing resource library building module, a three-dimensional assembly process design module, a three-dimensional assembly process simulation module and a three-dimensional assembly process release module, the three-dimensional manufacturing resource library building module is used for building a three-dimensional manufacturing resource library containing product, fixture, tool and auxiliary material information, the three-dimensional assembly process design module is used for decomposing process tasks and planning a process according to the built three-dimensional manufacturing resource library to form a process structure tree, the three-dimensional assembly process simulation module is used for building a virtual assembly environment and simulating and analyzing the assembly process according to a three-dimensional model, the assembly process and the process structure tree to form a three-dimensional assembly animation meeting actual assembly requirements, and the three-dimensional assembly process release module is used for integrating process design information and simulation information, forming a three-dimensional assembly process file and releasing the three-dimensional assembly process file to an assembly site. Accurate and visual three-dimensional visual means are provided for aerospace product assembly, so that the problem of information gaps among three-dimensional product design, three-dimensional process design and three-dimensional assembly site implementation in the prior art can be solved.
Owner:SHANGHAI JIAO TONG UNIV

Second-order cone programming method for power-off grid load recovery with consideration of recovery quantity uncertainty

The invention discloses a second-order cone programming method for power-off grid load recovery with consideration of recovery quantity uncertainty. On the basis of improvement of a load recovery robustness optimization model with consideration of uncertainty, a robust model with a mixed integer second-order cone mode is established and solving is carried out to obtain a load recovery robust plan. The method comprises: 1, establishing a power-off grid load recovery certainty model; 2, on the basis of an information gap decision-making theory, establishing a robustness optimization model with consideration of load recovery uncertainty; 3, with a second-order cone relaxation method, carrying out convex optimization relaxation processing on a non-linear power flow equation in the optimization model; 4, carrying out linear processing on the rest of nonlinear constraints; and 5, on the basis of a direct-current power flow model, invoking CPLEX at two stages to solve the optimization model, thereby obtaining a load recovery plane. With the method disclosed by the invention, a load recovery plan can be obtained rapidly and accurately; load fluctuation within a certain range can be carried; and security of the grid recovery process can be guaranteed. The method has the certain theoretical value and engineering value.
Owner:NANJING UNIV OF SCI & TECH

A Web-oriented method for data publishing and visualization of building information model

The invention discloses a network-oriented building information model data publishing and visualization method. The concrete steps are as follows: reading the building model file and extracting the building model information; According to the model extraction information, the corresponding relationship between geometry and attributes of the model is generated and stored in the network database. estab,ishing a model-distance layering display mapping table; The octree spatial cube index is established according to the model, and the spatial position index information of each building component is calculated. The output component compresses the file to carry on the network release; Each child node of the index is traversed according to the viewpoint position, and the distance R from the center point of the child node cube to the viewpoint position and the visual distance D of the component are compared to form a real-time loading component list; Obtain the component model published on thenetwork from the list and drawing it. The invention can reduce the difficulty of releasing the building information model network, quickly realize the network release of the model data, and fill theinformation gap caused by the huge building information model data which is difficult to be shared on the network.
Owner:中航安贞(浙江)信息科技有限公司

Method for recording medical information of a user and for sharing user experience with symptoms and medical intervention

The present invention relates to an integrated system of ‘Electronic Medical Record for Individuals’ (EMRI) and ‘Patient Information Exchange (PIE) to perform a method for creating and recording medical information of a user and for sharing user experience with symptoms and medical intervention details. In this method for creating and recording medical information of the individual user, comprehensive health information of the individual user in the user interface module is organized and prepared based on the personal details, the health details, the symptoms, the treatment details, the health reports and the medical insurance details of the individual user through a user interface module of the EMRI module. The health information of the individual user are tracked and displayed from the user interface module into a doctor interface module of the EMRI module. Such systems and methods facilitate easy availability of comprehensive and chronological medical records or health information of the user and easy public sharing of the user experience with symptoms and medical intervention benefiting the society at large through such dissemination. Further, it achieves effective diagnosis and determination of right course of medical intervention to enhance the quality of life and mitigating trauma for the user, and also minimizes the information gap between the patients and the doctors for effective diagnosis.
Owner:PILLAPAYAM NARASIMHACHARI MURALIDHARAN +1

Ultrahigh tower construction progress management system and method based on BIM technology

The invention discloses an ultrahigh tower construction progress management system and method based on a BIM technology, and relates to the field of building construction management. According to the invention, progress management planning performance in a construction project is high, a BIM model is adopted, and traditional paper files and complex data records are abandoned, so that engineering progress is more intuitive and concise in performance; different color representations are set for different construction teams, so that the visualization effect is good, and the distinguishing performance is high; a monitoring module is further arranged, so that remote monitoring can be conveniently carried out by a progress management party, the situation of wrong report and false report of the construction teams can be found in time, and information gaps are reduced; for ultrahigh tower type buildings, smooth implementation of early-stage installation work of frameworks, formworks and the like can be effectively guaranteed, and the concrete foundation pouring efficiency is improved; and the material consumption amount of the construction project can be pre-judged, engineering material preparation is made for the construction teams in advance, and the completion efficiency of the construction project is further improved.
Owner:国网江苏省电力有限公司建设分公司

Method and device for predicting output of distributed power supply

The embodiment of the invention discloses a method and a device for predicting the output of a distributed power supply. The method comprises the following steps: determining an output lower limit ofthe distributed power supply according to a fluctuation formula of uncertain parameters in an information gap decision-making theory; calculating original power supply capacity according to a preset power supply capacity model and a total output predicted value; determining a power supply capacity lower limit according to original power supply capacity and a first preset deviation factor; determining a maximum deviation factor value as a first deviation factor when the negative value of an objective function is not greater than the power supply capacity lower limit by taking the negative valueof power supply capacity as the objective function of a risk avoidance model; and determining the output range of the distributed power supply under the risk avoidance model according to the first deviation factor and the fluctuation formula. The output of the distributed power supply can be predicted relatively accurately under the premise of uncertainty for the output of the distributed power supply, the calculation for the power supply capacity of a power distribution network is relatively accurate, and a decision-making basis is provided for real-time operation control of the power distribution network.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1

A Second-Order Cone Planning Method for Load Restoration in Power Outage Power Network Considering Uncertain Restoration Quantity

The invention discloses a second-order cone programming method for power-off grid load recovery with consideration of recovery quantity uncertainty. On the basis of improvement of a load recovery robustness optimization model with consideration of uncertainty, a robust model with a mixed integer second-order cone mode is established and solving is carried out to obtain a load recovery robust plan. The method comprises: 1, establishing a power-off grid load recovery certainty model; 2, on the basis of an information gap decision-making theory, establishing a robustness optimization model with consideration of load recovery uncertainty; 3, with a second-order cone relaxation method, carrying out convex optimization relaxation processing on a non-linear power flow equation in the optimization model; 4, carrying out linear processing on the rest of nonlinear constraints; and 5, on the basis of a direct-current power flow model, invoking CPLEX at two stages to solve the optimization model, thereby obtaining a load recovery plane. With the method disclosed by the invention, a load recovery plan can be obtained rapidly and accurately; load fluctuation within a certain range can be carried; and security of the grid recovery process can be guaranteed. The method has the certain theoretical value and engineering value.
Owner:NANJING UNIV OF SCI & TECH

Random electrothermal coupling system optimization scheduling method considering heat asymmetric heat loss

The invention discloses a random electrothermal coupling system optimization scheduling method considering heat asymmetric loss, wherein the method comprises the steps: building a thermodynamic system model considering the heat asymmetric loss based on a heat transfer process of a heat supply network pipeline considering the actual heat loss; by using the thermodynamic system model and considering the influence of wind power uncertainty in a traditional electrothermal coupling system structure, establishing a random electrothermal coupling system optimization scheduling model; and based on the optimal scheduling model, modeling the wind power uncertainty of the optimal scheduling model by adopting an information gap robust optimization method and performing relaxation solution on the optimal scheduling model. According to the method, the heat asymmetric loss process of the heat supply network pipeline is considered, and the heat migration dynamic characteristic of the thermodynamic system is fully exerted, so that the wind power consumption level and the economic benefit of the random electrothermal coupling system are improved. In addition, an information gap robust optimization method is adopted for solving, so that the method can be suitable for the current situation that the random electrothermal coupling system has wind power uncertainty, and the safety and stability of system operation are fully ensured.
Owner:CHINA THREE GORGES UNIV

Scheduling method of electrical integrated energy system based on information gap decision theory

The invention discloses an electrical comprehensive energy system dispatching method based on the information gap decision theory, which includes: establishing a theoretical model for information gap decision-making; establishing an optimal economic benefit operation model after combining wind power-pumped storage units; considering wind power output uncertainty Establish a wind-storage combined unit scheduling model based on the information gap decision theory; establish a deterministic electrical integrated energy system scheduling model; consider load uncertainty and establish an electrical integrated energy system scheduling model based on the information gap decision theory; combine the bacterial population The chemotaxis algorithm solves the model; the solution result is sent to the energy dispatching center, and the energy dispatching center dispatches the energy system according to the solution result. The scheduling strategy proposed by the invention can effectively reduce the intermittency and volatility of wind power, increase the consumption of wind power and increase the economic benefits of the electrical comprehensive energy system, and provide different scheduling strategies for decision makers with different risk preferences.
Owner:YANSHAN UNIV
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