54 results about "Exchange model" patented technology

The invention provides a method for monitoring the regional evapotranspiration on the basis of remote sensing, comprising the following steps of: (1) obtaining the multi-temporal and multi-resolution satellite remote-sensing image data at a specific region; (2) carrying out remote sensing inversion to the key parameters on the ground surface; (3) calculating the impedance of each pixel during the exchanging process of the geogas energy by a remote-sensing geogas exchanging model, calculating the sensible heat flux used for heating the air above each pixel, calculating the latent heat energy by an energy remainder formula and inquiring into effective surface impedance; (4) establishing a surface impedance model in a daily dimension so as to obtain a daily ground surface impedance; and (5) working out the daily evapotranspiration by applying a P-M model repeatedly and carrying out time accumulation and dimension down-scaling, thus finally determining the regional ground surface evapotranspiration. According to the validation of the practical measurement at multi-regions, the method for monitoring the regional evapotranspiration is proved to be effective.

A server has a firewall module that performs accounting of traffic seen at the server. The traffic includes message exchanges, such as HTTP requests and HTTP responses. The server tests the message exchanges to determine if they match any of several message exchange categories. The server keeps statistics on matching traffic, for example the rate of matching traffic generated by a particular requesting client. Typically, the server is a proxy server that is part of a content delivery network (CDN), and the message exchanges occur between a client requesting content, the proxy server, other servers in the CDN, and / or an origin server from which the proxy server retrieves requested content. Using the message exchange model and the statistics generated thereby, the server can flag particular traffic or clients, and take protective action (e.g., deny, alert). In an alternate embodiment, a central control system gathers statistics from multiple servers for analysis.

The invention relates to a method of allocating grid-based computer resources which is based on an exchange model that is predicated exclusively on a system of returned favours. A favour is defined as the act of offering a resource and the method is performed in respect of two or more grid resource providers / consumers which are alternatively known as participants. In one embodiment, the method includes the steps of establishing two or more participants in a grid-based computer system where at least one of said participants offers resources. Each participant expects resources to be offered in return in proportion to the level of resources which that participant offers. Primarily, the present invention may be applied in arbitration situations whereby a participant which is offering resources arbitrates conflicting requests for its resources by prioritizing requests from those other participants who have offered favours in the past. The invention may be applied most suitably in the context of applications which can be run in a fragmentary task fashion where each task may be executed independently of each other task comprising the whole application. Specific computational contexts to which the invention may be applied include large-scale computationally intensive calculations such as molecular modeling, analysis of large bodies of data and the like. The invention may be applied to similar evanescent grid-based computer resources such as network storage and similar.

The invention discloses a real-time data exchange model of a cross-platform application system, belonging to the filed of computer application. The model utilizes an enterprise service bus (ESB) to construct a service interaction channel over an enterprise-class construction and each business system; the functions in the cross-platform application system are packaged to form service components through the WEBSERVICE technology; the function support of data exchange is provided by the service components to build a management module based on the ESB; the service components are edited and integrated to realize service component registration, service routing and data set processing and transmission; and a service blog module is utilized to record the specific conditions and contents of data exchange for further management and monitoring. Compared with the prior art, the data exchange model of the invention provides a cross-platform real-time data exchange scheme with stability and high efficiency for industrial application systems, and also provides an effective tool support for management and monitoring service shared by data exchange.

A server has a firewall module that performs accounting of traffic seen at the server. The traffic includes message exchanges, such as HTTP requests and HTTP responses. The server tests the message exchanges to determine if they match any of several message exchange categories. The server keeps statistics on matching traffic, for example the rate of matching traffic generated by a particular requesting client. Typically, the server is a proxy server that is part of a content delivery network (CDN), and the message exchanges occur between a client requesting content, the proxy server, other servers in the CDN, and / or an origin server from which the proxy server retrieves requested content. Using the message exchange model and the statistics generated thereby, the server can flag particular traffic or clients, and take protective action (e.g., deny, alert). In an alternate embodiment, a central control system gathers statistics from multiple servers for analysis.

The invention relates to a method of correction for non-contact thermometry in a translucent medium environment, which belongs to the technical field of pyrometry. The problem that when the surface of an object to be measured is in a translucent medium coverage environment, radiation energy detected through a traditional method can not be corrected through a traditional material surface emissivity correction method, so that the actual temperature can not be obtained is solved. The method comprises the following steps of: firstly, judging whether a translucent medium is contacted with the surface of the object to be measured, if so, selecting a one-dimensional coupling heat exchange model, adopting a finite volume method to calculate a forward model, and obtaining a theoretical radiation energy value capable of being obtained by temperature measuring equipment; if not, selecting a one-dimensional pure radiation heat exchange model, adopting the finite volume method to calculate the forward model, and obtaining the theoretical radiation energy value capable of being obtained by the temperature measuring equipment; then measuring an actual radiation energy value of the surface of theobject to be measured; and adopting an intelligent particle swarm optimization algorithm to inverse an actual temperature value of the surface of the object to be measured. The method provided by theinvention is applied to temperature measurement of the surface of the object to be measured in the translucent medium environment.

The invention relates to the technical field of microgrid, in particular to a data exchange model based on an IEC 61850 client side / server. A microgrid data exchange structural system is divided into a microgrid process layer, a data protocol conversion layer and a microgrid energy management layer. The microgrid process layer comprises a data acquisition unit and a control unit of microgrid physical devices, and the data acquisition unit and the control unit complete analog quantity sampling, on-off input / output and operation instruction sending. The data protocol conversion layer receives data acquired by the microgrid process layer downwards and converts the data into protocol data to transmit the protocol data to the microgrid energy management layer, and receives operation instructions issued by the microgrid energy management layer upwards and issues the operation instructions to the microgrid process layer. The microgrid energy management layer receives the data transmitted by the data protocol conversion layer, analyzes a decision and generates a next step control instruction set and issues the next step control instruction set to the data protocol conversion layer. The data exchange model based on the IEC 61850 client side / server is simple in structure, flexible in expanding and capable of improving data reading efficiency.

The invention discloses a data exchange method of inter-heterogeneous CAD system parametric feature models based on process recovery. In the method, the exchange of inter-heterogeneous CAD system parametric feature models is achieved through the recovery of the establishment process of parametric feature models, information extraction, exchange and re-establishment, thus ensuring the parametric edition of the exchanged models. In addition, the information of the establishment process of the models is transmitted instead of the geometric data of the models, the data quantity to be transmitted through networks is significantly reduced, and the network transmission efficiency is improved.

The invention relates to an integrative performance test method for vaporizing and cooling different heat exchange models and modes, comprising the following steps that: 1. a multifunctional test for testing the performance of the vaporizing and cooling the heat exchange module is prepared; 2. the heat exchange performances of the two models of the heat source dissipation inside the heat exchange module and the heat source dissipation outside the heat exchange module are tested; 3. under the two models, the heat exchange performance of the crosscurrent, the reverse current and the fair current modes of the vapor flow direction are tested. The invention adopts one set of the wind source, the water source, the electroheat source and the test system, takes a small wind-cone as a body, can test the heat radiation performance of hot water in the stuffing under the external heat source under various modes of the crosscurrent, the reverse current and the fair current of the vapor by simple transformation and can test the heat source cooling performance under the internal heat source. The tests basically include the main heat performance tests of an open type cooling tower and a closed type cooling tower as well as the outside of the vapor cooling pipe (condensing pipe). Moreover, the method is simple and feasible, the test range is wide and the comprehensiveness is strong.

A mathematical model that models gas exchange of a central compartment with an environment having a model gas is provided. The central compartment is modeled to be in direct fluid communication with a plurality of peripheral compartments and with the environment to exchange the model gas therewith. Using a measure of an inert gas in a breathing mixture over a period of exposure of a person to the breathing mixture as a measure of the model gas in the environment over the time period, a measure of the model gas in the central compartment can be calculated according to the model. A risk of decompression sickness to the person resulting from the exposure can then be calculated based on the calculated measure of the model gas in the central compartment.

The invention discloses an intra-channel flow field reconstruction method based on a structured grid. The method is used for reconstructing flow field data including a temperature field, a pressure field and a speed field from known geometrical parameters, boundary conditions and fluid parameters of a flow heat exchange model. According to the invention, the flow field data of the flow heat exchange model is collected and converted into a matrix form, the GAN network is established to realize reconstruction of the flow field data, and a complete and effective flow field reconstruction technology with low time cost, low calculation cost and low economic cost is realized. The method is quick in calculation and easy to change, and can replace a CFD technology to optimize the design of the heat exchange device. Complete temperature field, pressure field and speed field data can be obtained. Data processing is facilitated, the overall flow heat exchange condition is studied, and the methodhas great advantages compared with a complex experimental method.

The invention relates to a route exchanger which integrates a firewall, which includes a primary control model and back board of the route exchanger, a control channel and data channel are arranged on the back board; exchanging model, which has a outer network physical port and a inner network port; it also includes a firewall model; the fireproof model has a inner network, DMZ and outer network interfaces; the primary control model of the route exchanger configures the transferring chip of the exchanging model and the processing unit of the firewall mode through the control channel of the back board; the exchanging model and the firewall model transmit data through the data channel on back board. The outer network physical port of the exchanging model is defined as the inner network, DMZ and outer network interfaces of the firewall model. The primary control model configures the transferring chip of the exchanging model and the fireproof processing unit of the firewall model respectively. It can simplify the structure of network, reduces the network devices, reduces the network investment, and increases the stability of network. It can be applied to data communication field widely.

The invention discloses a simulation method and a simulation device for a generation value of a combustion characteristic of pulverized coal of a power station boiler, and solves the technical problem that the whole rule characteristics of combustion, flowing and heat transfer in the boiler cannot be measured due to the fact that a conventional hearth cannot be used for manufacturing a test bed of a full-size model as the size of the hearth is larger and larger. The method comprises the following steps: simulating a combustion process of the pulverized coal of the boiler in a preset boiler combustor model subjected to gridding division through a basic conservation equation, a turbulent flow model, a turbulent gas-solid two phase flow model, a gas phase turbulent combustion model, a pulverized coal particle combustion model, a radiation heat exchange model and an NOX generation model; determining a gas flow field in a boiler combustor, a temperature field in the boiler combustor, flue gas component distribution in the boiler combustor, a moving trace of pulverized coal particles in the boiler combustor, radiation heat flow on the wall surface of the boiler combustor, the boiler combustion efficiency and an NOX discharge amount according to a simulation result.

The invention relates to a message-routing-based state monitoring data interface configuration method, which is characterized by comprising the steps of: interface configuration of a data exchange system on a data interface platform, data exchange configuration of the data exchange system on the data interface platform, and data exchange carried out by the data interface platform through a data exchange engine according to the interface configuration and the data exchange configuration. The method disclosed by the invention aims to solve the problem that data interaction is needed between the state monitoring application of electric transmission and transformation equipment and a plurality of external network systems, a universal data interaction scheme is abstracted, and a standard universal interface platform irrelevant to a specific business is realized based on message routing. On the interface platform, by configuration of interface attributes and message routing, a state monitoring data exchange model of the electric transmission and transformation equipment can be established quickly, the business data can be associated automatically, and the requirement for accessing various state monitoring data is met; and the work load for interface development and deployment can be reduced greatly.

The invention discloses a method for calculating a critical air leakage amount causing condenser vacuum deterioration. The method comprises: setting an initial iterative parameter; performing iterative calculation on each cooling pipe, and drawing a relational curve of condenser vacuum and an air leakage amount, wherein the air leakage amount corresponding to a curve inflection point is the critical air leakage amount causing the condenser vacuum deterioration. The method has the beneficial effects that: a change state of the condenser vacuum during change of the air leakage amount is calculated by establishing a one-dimensional steady-state heat exchange model of a condenser under the condition that a load and capacity output of an air extractor are unchanged, so that the critical air leakage amount causing the condenser vacuum deterioration is determined, and guidance is provided for safe and economic operation of condensers in power plants.

The invention provides a method and apparatus for lightweight data transmission between a substation and a master station. A transformer substation data model is described by adopting CIM / E; a transformer substation data model description file is generated; the transformer substation data model description file is converted into an interface file of the transformer substation data model; and finally transmission of the data between the transformer substation and the master station is realized according to the interface file of the transformer substation data model. According to the technical scheme, the transformer substation data model is generated based on the CIM / E; bidirectional association indexing of the transformer substation data model and a data exchange model is supported; the transformer substation data model only contains an entity object; the CIM / E adopts a flat structure, so that the size of the transformer substation data model description file is reduced; and in the process of transmitting the data between the transformer substation and the master station based on the interface file of the transformer substation data model, the transmission byte number is reduced by about 30%-90% in comparison with that in direct transmission of a structured text, the demand of the transmission of the data between the transformer substation and the master station on the communication bandwidth is reduced, and the lightweight transmission is realized.

The invention discloses a power grid data migration method crossing GIS platforms. The method includes the following steps of building an isomerism exchange model on GIS platform independence, extracting old GIS platform power grid data, processing extracted data, adding the extracted data into the isomerism exchange model, and leading the data in the isomerism exchange model into a new GIS platform model. Aiming at defects of existing data migration technologies crossing the GIS platforms, the method provides a more flexible data migration scheme crossing the platforms, and the data migration scheme accords with ECIM laws. The method solves the problems that halt is needed in the process of data migration; data migration time is long; a repair function is not provided for data migration; flexibility and expansibility lack in data migration crossing the platforms.

The invention discloses a water conservation data exchange model and method. The water conservation data exchange model comprises an exchange node management module, an exchange service management module, an exchange platform management module and a central exchange pool. The exchange node management module is used for allowing registration, configuration and inquiry of exchange nodes to be achieved. The exchange service management module is used for allowing modeling, audit and inquiry of exchange services to be achieved. The exchange platform management module is used for maintaining daily operation of exchange platforms. The central exchange pool is used for storing exchange data shared by all the exchange nodes. Through the method, all the exchange nodes in a water conservation data center are managed through the exchange node management module, the exchange functions of all the exchange nodes are set up through modeling of the exchange services, sharing and exchange demand capturing are conducted on data separately stored in a service database through data resource directory services, data resources are stored and forwarded through the exchange pool of the exchange nodes, and the data resources are pushed to the target exchange node through the exchange services.

The invention relates to the technical field of aircraft fuel thermal management, in particular to an aircraft fuel tank thermal calculation modeling method and a calculation model thereof. A method for modeling the thermal calculation of an aircraft fuel tank comprises the follow steps: 1, abstracting the structure of the aircraft fuel tank as the recapitulative heat transfer boundary 2, making reasonable assumptions about the internal and external heat transfer conditions of the heat exchange boundary; 3, establishing a heat exchange model of that heat exchange boundary according to a reasonable assumption. The heat transfer models of the upper panel, the lower panel and the side panels of the aircraft fuel tank established by this method can be conveniently used for the heat calculationof the aircraft fuel tank, so that they can be incorporated into the heat calculation process of the fuel oil.

The invention provides an EFDC program improvement-based water surface heat exchange numerical simulation method. The method comprises the following steps of: importing boundary data and dividing a calculation grid; setting a boundary condition and an initial condition; compiling a new code and embedding the new code in an EFDC program to carry out code debugging; inputting a water surface heat exchange parameter to carry out model verification; if the model verification is inaccurate, carrying out code debugging again froma newly set boundary condition; if the model verification is accurate, carrying out model calculation; and finally carrying out post-processing. Compared with the prior art, the method provided by the invention has the advantages that a water surface heat exchange model which is easy to apply is embedded in the EFDC program, so that the parameters and steps of calculating water temperature by the EFDC are greatly simplified, the input parameters are measured data which is easy to collect, and relatively higher precision is provided. According to the method, the used water surface heat exchange model is few in parameters, few in defined program arrays and relatively high in calculation speed.

The invention belongs to the technical field of information, and provides an industrial Internet information exchange method for improving heterogeneous industrial network intercommunication capability and promoting cross-protocol intercommunication of industrial equipment. On one hand, cross-system interoperation is realized by developing a heterogeneous network information interoperation standard and establishing a multi-level network information model system, integration of an information technology network and a production control network is promoted, and a specification standard is formed by using a semantic description means and a forced grammar data structure requirement under language environments used in respective technical fields. On the other hand, guidance and specifications are provided for the industry by constructing a semantic information exchange model, industrial development of industrial internet information exchange is promoted, and an information interaction model containing enterprise total factor, total value chain and total industry chain data is formed in an industrial internet ecological environment, and the problems that multi-source heterogeneous systems of an edge layer, an enterprise layer and an industrial chain layer are different, and data sharing services are difficult to integrate, so that information is blocked, unsmooth or inaccurate are solved.

A teaching model for demonstrating cell division is composed of a flexible transparent chromosome magnetic model, a homologous chromosome cross exchange model, and a cell division telescopic rope model. The flexible transparent chromosome magnetic model is used for demonstrating the behavior relationship of chromosome, chromatid, DNA and gene in the processes of mitosis and meiosis, demonstrating the relationship between meiosis and the basic genetic laws and demonstrating the chromosome number and structure variation. The homologous chromosome cross exchange model is used for demonstrating cross exchange in the tetrad stage of meiosis. The cell division telescopic rope model is used for demonstrating depression and hanging division in the middle of cytomembrane in the process of animal cell division and demonstrating a dynamic change process in which a cell plate is extended to a cell wall and one cell is divided into two cells in the late stage of plant cell separation.

The invention relates to a proton exchange model fuel cell unit, a membrane electrode group and a gaseous diffusion layer structure. The gaseous diffusion layer structure is applied to the membrane electrode group of the proton exchange model fuel cell unit and at least comprises a material layer which is provided with a flow penetration capability distribution profile firstly progressively increasing and progressively decreasing from a start region to an end region and having optimal flow penetration capability in the rapid reaction position. The gaseous diffusion layer structure can considerate the permeability of a gaseous diffusion layer and the wettability of a proton exchange film to improve the effect of the membrane electrode group of a fuel cell and further improve the performance of the fuel cell.

According to some embodiments, an Arbitrary Software Logic Modeling ("ASLM") data source 110 may store electronic records associated with units, each electronic record including a unit identifier, oneor more identification tags, context data, unit parameters, unit variables, and internal logic. An ASLM platform 150 may express system requirements at a logic block level and establish the logic blocks as self-contained entities and connections in accordance with the system requirements (the established logic blocks graphically representing systems logic). The ASLM platform 150 may then explicitly transform the systems logic automatically to output language agnostic common design information exchange model information. The ASLM platform 150 may also translate and maintain traceability amongthe system requirements, common design information exchange model information, and generated code.

The invention discloses a determination method of production technology parameter of external cooling water in a middle-plate hot leveller, comprising the following steps: building a heat-gas-water mixed exchange model; building a heat-flow-solid structural model; pre-inputting the production technology parameter of external cooling water; determining external cooling water behaviour and the heat exchange flow field parameter of external cooling water, steel plates and levelling rolls; calculating steel plate rectified temperature distribution and levelling roll surface temperature distribution; adjusting external cooling water parameter in a recursion mode until the external cooling water parameter satisfies the temperature of levelling roll surface by production technology; and finally determining the production technology parameter of external cooling water. The invention adopts a fluid-solid-heat coupling dynamic method to determine the production technology parameter of external cooling water in a middle-plate hot leveller, thus avoiding irrationality of the artificial experience method; the technological parameter can be designed from the stage of designing the leveller; and according to the change of production working condition, the invention reasonably adjusts nozzle on-and-off amount as well as water spraying pressure and flow so as to effectively control the surface working temperature of the levelling rolls.

The invention relates to the technical field of liquid cooling system simulation, in particular to a liquid cooling system simulation method and apparatus. The methods includes: after building power equipment model and adopting preprocessing software to preprocess and grid the power equipment model, a liquid cool system monitoring model is obtained by adding a heat exchange model and a pump modeland setting a monitoring surface and a monitoring point; after the liquid cooling system model is calibrated, the flow field and temperature field of the monitoring surface and the monitoring point atdifferent times are obtained and simulated based on the preset parameters and the material setting, boundary condition setting and equation setting inputted by the user. Through the above arrangement, the obtained flow field and temperature field can guide the user to design and manufacture the liquid cooling system, so that the liquid cooling system manufactured is more reasonable and the effectis better.

The embodiment of the invention discloses a simulation method and device of a combustion characteristic generation numerical value of utility boiler pulverized coal under a variable over fire air volume, and solves the technical problems that the whole rule characteristics of combustion, flowing and heat transfer in a furnace can not be measured since the manufacture of the testbed of a full-size model is unrealistic because the size of a hearth is larger and larger at present. The method comprises the following steps of: on the basis of a base conservation equation, a turbulence flow model, a turbulence gas-solid two-phase flow model, a gas phase turbulence combustion model, a pulverized coal particle combustion model, a radiation heat exchange model and a NOX generation model, simulating the boiler pulverized coal in a preset boiler combustor model subjected to mesh generation in a combustion process under a condition of variable over fire air volume; and according to a simulation result under the condition of variable over fire air volume, determining the pulverized coal burn-off rate, the unburned carbon in flue dust, the NOX discharge amount, the lower-hearth outlet temperature and average CO concentration distribution along hearth height of the boiler combustor.

The invention discloses a model edition self-adaptation achieving method based on an electric power enterprise server bus (ESB). The model edition self-adaptation achieving method based on the electric power ESB is mainly applied to fields like power distribution automation, intelligent grid support systems and fault analyses. According to the model edition self-adaptation achieving method based on the electric power ESB, a model edition self-adaptation service is deployed on an ESB and can extract model difference rules, and models of different editions can be converted; as long as external models are submitted to the service, a DAS will acquire a model matched with the edition of the DAS. If models of new editions are added to the electric power ESB, corresponding rules can be added to the self-adaptation service, model outputting systems and model receiving systems do not need changing. The model edition self-adaptation achieving method based on the electric power ESB aims to solve the problems that the number of models needing converting in the distribution network modeling process and the number of model editions are large, and model converting is complex.

The invention discloses an advanced turbine cooling method based on porous media and super-critical state fluid circulation. According to the method, cooling channels in turbine blades are filled with porous media materials to increase the effective heat exchange area, and the effective heat exchange area depends on the shape, size and arraying direction of micro-pore structures; super-critical state fluid which is small in flowing resistance and high in heat exchange capacity serves as heat exchange media, so that the actual heat exchange amount is larger than the heat exchange amount in a conventional heat exchange model according to actual heat exchange requirements, and the number of cooling channels in the blades and the number of rib plates in the blades can be designed; according to the actual heat exchange requirements, the size, shape and arraying direction of the porous media can be designed; the blades can be machined integrally through a laser rapid forming technology or other high-energy-beam rapid forming technologies. The advanced turbine cooling method achieves direct and rapid forming, the technology is simple, and the structure, shape and position designability is high.