79 results about "Grid application" patented technology

A method, system, and program for facilitating overall grid environment management by monitoring grid activity across disparate grid resources and distributing grid activity to decisional grid modules are provided. A grid workload controller within a computational grid environment monitors real-time grid activity at an application level from multiple disparate grid application environments. The grid workload controller then determines a selection of grid modules within the computational grid environment that require the real-time grid activity to make decisions about the management of the computational grid environment. The grid workload controller distributes the real-time grid activity to the selection of grid modules, wherein the selection of grid modules then make automated decisions within the grid environment to maintain performance requirements.

A Grid Proxy Architecture for Network Resources (GPAN) is proposed to allow Grid applications to access resources shared in communication network domains. GPAN bridges Grid services serving user applications and network services controlling network devices through its proxy functions such as resource data and management proxies. Working with Grid resource index and broker services, GPAN employs distributed network service peers (NSP) in network domains to discover, negotiate and allocate network resources such as bandwidth for Grid applications. An elected master NSP is the unique Grid node that runs GPAN and represents the whole network to share network resources to Grids without Grid involvement of network devices. GPAN provides the Grid Proxy service (GPS) to interface with Grid services and applications, and the Grid Delegation service (GDS) to interface with network services to utilize network resources. Resource-based XML messaging is employed for the GPAN proxy communication.

A system and method are disclosed, which controls congestion to efficiently transmit data through a network of grid node network in a grid computing environment where a large amount of data is processed. The system and method are performed in such a way that, according to a grid application program's request for distributed processing a large amount of data, the data is divided into packets, the node availability of respective nodes distributed in the grid network is measured with consideration to the bandwidth and the queue size of available grid nodes to avoid and control network congestion that may occur when the packets are processed by distributed processing using the respective nodes, the average node availability of all nodes is predicted using a statistical method, a threshold is calculated based on the predicted average node availability to set a dynamic congestion area representing the congestion level of the respective nodes, and the amount of packet transmission is controlled based on the congestion area. As the grid nodes are managed by controlling congestion, packet loss and packet delay are reduced and the rate of packet processing and the rate of node use are increased. Therefore, data can be stably transmitted to the grid user through the network with an improvement in the Quality of Service (QoS).

A client-server network environment is temporarily transformed into a grid computing environment through the deployment of a network-booted grid operating system to each of a plurality of network clients. Each participating client operates in the client-server mode under a local operating system. At an appropriate time, a server transmits to each client a thin-client boot image (a dynamically built customized image or an image obtained from a store of predefined boot images) along with a grid application for which the thin-client has been optimized for peak performance. Each client re-boots using the thin-client image, thereby entering the grid mode and allowing substantially all of its computing resources to be dedicated to executing the grid application. At a later time, the server directs that each client terminate the grid application and re-boot in its respective local operating system, reverting again to the client-server mode.

A grid application and storage system to enhance data access. The grid application and storage system comprises a plurality of grid application storage nodes with at least one storage system, said grid application storage nodes being remote to each other and connected via inter-connections; at least one application process distributed across said grid application storage nodes; and at least one grid node control process also distributed across said grid application storage nodes, said grid node control process managing grid application storage node operations. A plurality of client systems are connected to said grid application and storage system via a network for deploying said application process and accessing application data stored on said grid application storage nodes.

A method, system, and program for facilitating overall grid environment management by monitoring grid activity across disparate grid resources and distributing grid activity to decisional grid modules are provided. A grid workload controller within a computational grid environment monitors real-time grid activity at an application level from multiple disparate grid application environments. The grid workload controller then determines a selection of grid modules within the computational grid environment that require the real-time grid activity to make decisions about the management of the computational grid environment. The grid workload controller distributes the real-time grid activity to the selection of grid modules, wherein the selection of grid modules then make automated decisions within the grid environment to maintain performance requirements.

The invention discloses a CFD (Computational Fluid Dynamics) accelerating method for multi-region structured grids on a GPU (Ground Power Unit) based on grouped multi-streams, and aims to accelerate the CFD application of the multi-region structured grids running on the GPU. The technical scheme is as follows: the method comprises the following steps of: constructing a CPU (Central Processing Unit) and GPU software and hardware platform, and deploying CFD application software of the multi-region structured grids; implementing grouped multi-stream management software and time step advancing software, setting a grouped multi-stream parameter, a CFD time iteration step number and a convergence condition, implementing GPU storage management software to initialize the usage mode of a storage space of the GPU, pre-assigning the storage space of the GPU, and adjusting the storage of the GPU as required; and implementing the grouped multi-stream management software in time step iteration, and finishing the multi-stream calculation for the CFD application of the multi-region structured grids by using the GPU. The CFD accelerating method can be used for effectively accelerating the CFD application of the multi-region structured grids running on the GPU, calculating multiple grid sub-regions on the overlapped GPUs and realizing the communication between the CPU and the GPU, so that the expense for data transmission between the CPU and the GPU is hidden, and the limitation of smaller whole video memory volume of the GPU is relieved. In addition, the CFD accelerating method is simple and easy to realize and strong in universality.

A single sign on (SSO) based grid authentication trust model is a solution for objective authentication of trusted entities under open grid environment and is mainly used for solving the following problem: how users carry out identity authentication and can launch grid application after passing primary authentication. When continuously using the grid resources, users can access various legal resources in the computational grid after passing the identity authentication without repeated authentication. Under the grid computing environment, the invention solves the problems of collaboration between the grid users and the grid entities in the virtual organization and the entities in other virtual organizations, and security and dynamics of the shared resources, and constructs the security architecture for authorizing the users under the grid computing environment.

A method, apparatus, system, article of manufacture, and computer-readable storage medium provide the ability to dynamically modify a distributed computing system workflow. A grid application dynamically receives configuration information including business rules that describe execution profiles. Channels based on the one or more execution profiles are defined. Each channel is configured to execute a work request in a distributed grid compute system (based on an execution profile). A first work request is received from a requestor and includes an identity of the requestor. The first work request is evaluated and the identity of the requestor is applied to direct the first work request to the appropriate channel.

An electrical energy storage system that can store both grid-based electrical power when electricity prices are low or renewable power generated on-site. It can release the stored electricity for consumer applications when necessary based on a software program and configuration. The system may be networked. The system comprises a port for receiving a central processing unit (CPU), and facilitates the use of different CPU products for different users and uses.

The invention relates to a quantity assurance method of grid service base on resource reservation, mainly comprising a grid source reservation system structure based on a virtual organization and a grid resource joint allocation algorithm configured in the structure. The grid source reservation system structure based on the virtual organization introduces sources aggregated by the virtual resource container with the same function. When reaching the virtual organization, the reservation request is firstly virtually bonded with the virtual resource container; when the requested reservation time is arrived, the logic resource allocator allocates one or more resource to the reservation resource. Aiming at two different types of grid application of single work unit and work unit workflow, the logic resource allocator deploys a grid resource joint allocation algorithm based on QoS (quality of service) Euler distance and a grid joint recourse allocation algorithm with QoSguarantee.

This invention presents a highly efficient harmonics free DC-AC power inverter using a pair of push-pull switches with feedback loop that acts as a voltage regulator. The feedback loop voltage regulator uses a series-shunt feedback amplifier to regulate the output voltage by amplifying the error signal between a pure sine wave referenced signal and the measured output voltage signal. A step-up low power transformer is used to step-up the triggering pulse at gates of the push-pull solid state switches to the desired rated output voltage so that the output voltage becomes harmonic free sine wave, but high voltage feedback amplifier, if feasible, maybe used without using the transformer. The reference signal may be synchronized with the grid for on grid applications, but it can also be used for stand alone loads. In order to optimally minimized the conduction power loss across the push-pull solid state switches of the DC-AC inverter, the positive voltage V+ and the negative voltage V− must be regulated and controlled, so that the voltage across the push-pull switches are minimized. Hence, two DC-DC converters are used to generate the regulated voltages V+ and V−. Each of those voltages is controlled using a feedback loop that drives the pwm of the DC-DC converter. At this point, the conduction power loss of the DC-AC push-pull solid state switches are optimally minimized, but the DC-DC converters are not. In order to minimize the conduction power loss of the DC-DC converters, two multilevel converters with n-array series voltage sources, or n-array series capacitors, are used. The voltage level at the top of each capacitor is carefully selected so that the overall conduction power loss of the DC-DC converters is minimized. The power conduction power loss proportional to the number of levels used but this comes at higher cost and complexity.

The invention relates to a photovoltaic energy storage inverter off-grid MPPT perturbation method. The method comprises the steps that: an independent power loop connected with a photovoltaic panel to form a photovoltaic loop is set, and an independent charge and discharge loop connected with a battery to form a charge loop and a discharge loop is set; the voltage of a bus is detected; when the voltage of the bus is larger than the upper limit of a control reference voltage of an off-grid system, a photovoltaic energy storage inverter stops the MPPT control over the photovoltaic panel, the voltage of the bus is stabilized to the control reference voltage of the off-grid system, and the discharge loop of the battery is switched off; when the voltage of the bus is lower than the lower limit of the control reference voltage of the off-grid system, the photovoltaic energy storage inverter starts the MPPT control over the photovoltaic panel, the PV voltage of the photovoltaic panel is controlled to a photovoltaic maximum power point, and the battery is controlled by the discharge loop to carry out discharging; or else, the off-grid system maintains the current work state. By applying the method, the photovoltaic off-grid application power configuration restriction and the photovoltaic utilization rate are greatly improved, and the photovoltaic application stability in a district without a power grid is realized.

Being applicable to open grid environment, the method decouples dependence between applications in upper layer and grid toolbox in lower layer. Thus, applications in upper layer can call service implementation in low layer based on unified API without need of understanding technical scheme of provider of service implementation. Releasing from coupling among grid service implementation, deployment description, service call and grid toolbox, the method makes compiling and packaging phases in developing grid application carry out without need of grid toolbox. In phases of deploying and calling grid, contents relevant to platform are automatic added to. Thus, the grid toolbox is transparent to application developer in the method. Advantages are: simplifying flow of development, combining techniques of code generation and graphic interface so as to provide convenience for developing application.

A Grid application framework uses semantic languages to describe the tasks and resources used to complete them. A Grid application execution framework comprises a plurality of mobile agents operable to execute one or more tasks described in an intent based task specification language; VO circuitry operable to receive input that describes a task in the task specification language; an analysis engine for generating a solution to the described task; and an intent knowledge base operable to store information contained within tasks of the plurality of mobile agents

This invention provides one plug part for multiple-grid application, which comprises operation unit for operation description file mode, U1 unit for description file mode and the output U1 unit for U1 description file mode, the operation unit is connected to the U1 unit and output U1. Based on above part, this invention provides one multi-grid application for integral interface. This invention seals the operation description and interface for multiple customer ends.

The invention discloses an intelligent power grid security data aggregation method and system based on a block chain technology. A credible authority is responsible for managing and distributing secret information of all other entities; a control center is responsible for integrating, processing and analyzing periodic time sequence data of the cell network nodes and providing comprehensive and reliable intelligent services; agateway is responsible for aggregating the data submitted by the user; a sensing nodes are responsible for collecting data in real time and forwarding the data to the control center. The method includes a system initialization stage; a data collection stage; a security data aggregation stage; an accounting node selection stage; a new block generation stage; a block verification stage; and a decision support stage. On the basis of deeply researching and analyzing the existing application achievements of the block chain technology in the field of smart power grid application, the smart power grid security data aggregation method and system based on the block chain technology are realized, and meanwhile, the user privacy is protected and the confidentiality and integrity of communication data are ensured.

The invention relates to a network simulation method which comprises: information distribution, network solid construction, analogue program generator, analogue program operation, and analogue result output. The simulator with said invention comprises a information distribution module, a network grid solid construction module, a simulation program generation module, a simulation program operation module, and a simulation result output module. The simulator builds models of user solid, mission solid, resource solid, message catalog solid, distributor solid, network solid and statistic analyzes solid, to support accurately simulating the network grid application environment. The simulator uses the support of disperse mission simulated basic structure, via independent process simulates each solid in said network grid system, while the process cycles repeated, it simulates the solid motion and processes the information of external solid. The simulator has better user interface and abundant mode supports, while it can supply relative data statistic and analyze tool to effectively reflect the simulation result.

The invention provides a biological intelligence scheduling method for simulation grid system, comprising the following steps of: disassembling a simulation application into a group of calculation sub-tasks with a data input and output relationship by adopting a mode of facing a role model according to the features of simulation models on different nodes and the amount of simulation application tasks and forming corresponding simulation job resource groups; generating weight ratios of task resources, adopting a tree-hierarchy role diagram to express the data dependency among tasks in a simulation grid application, and making the consumption of the scheduling path of the selected sub-task be the lowest by using a multi-path hybrid ant colony intelligent scheduling method so as to realize a high-efficient scheduling of a simulation calculation operation with high performance. The biological intelligence scheduling method for simulation grid system has the advantages of ensuring that the simulation application resources are under the working state of proper load in most of the time, bringing more benefits to the resource owner, and ensuring the completion of the simulation tasks within a shortest time without too much calculation cost.

This invention presents a family of isolated BESS topologies with multiple functions, which are suitable for high voltage and high power DC grid application. A battery energy storage system (BESS) for direct current (DC) grid applications is provided, including an alternating current (AC) transformer having a primary side and a secondary side, at least one primary side arm coupled to the primary side of the AC transformer, the at least one primary side arm comprising a plurality of cascade connected voltage source converter sub-modules and a plurality of energy storage battery units and at least one secondary side arm coupled between the secondary side of the AC transformer and a DC grid voltage bus, the at least one secondary side arm comprising a plurality of cascade connected voltage source converter sub-modules. Modulation and control strategies for the various topologies are also provided.

The invention discloses a display method and a mobile terminal of a grid interface. The method comprises the following steps of: displaying the grid interface after entering into a main menu of the mobile terminal; receiving and analyzing an input command for the grid interface, and determining the grid application corresponding to the command; and displaying a sub menu of the grid application in a preset area of the grid interface, wherein the preset area is one of N equivalently divided areas of the grid interface, and N is larger than 0. According to the display method and the mobile terminal of the grid interface, which are disclosed by the invention, the processing ability of a system is enhanced, and the user experience is increased.

The invention discloses a big data framework-based ecological environment monitoring grid system. The system comprises an environment monitoring device and a service running module; and a multi-environment parameter access module is arranged at one end of the environment monitoring device. The big data framework-based ecological environment monitoring grid system is provided with an internet-of-things data collection module, a heterogeneous data processor, a lustre-based environment big data analysis system, ecological environment monitoring quality evaluation method and model, and an ecological environment grid system; protocol contents are configurable; no secondary development is required; a multisource heterogeneous data processing method provides a one-stop data access service; multi-monitoring object-based ecological environment quality comprehensive evaluation is realized through the ecological environment monitoring quality evaluation method and model; wisdom management and application of ecological environment monitoring is realized through the grid application system; use convenience is brought for people; and better use prospects are achieved.

The embodiments disclosed herein pertain to improved methods and apparatus for etching a semiconductor substrate. A plasma grid assembly is positioned in a reaction chamber to divide the chamber into upper and lower sub-chambers. The plasma grid assembly may include one or more plasma grids having slots of a particular aspect ratio, which allow certain species to pass through from the upper sub-chamber to the lower sub-chamber. In some cases, an electron-ion plasma is generated in the upper sub-chamber. Electrons that make it through the grid to the lower sub-chamber are cooled as they pass through. In some cases, this results in an ion-ion plasma in the lower sub-chamber. The ion-ion plasma may be used to advantage in a variety of etching processes.

The invention relates to a gas cook top assembly that is capable of operating in off-grid applications where no electricity is available and that is also adaptable to operating in on-grid applications. The cook top is provided with a first control loop with a battery pack for powering the control valves for releasing gas to the gas burners and a spark ignition module for generating a spark to ignite the corresponding gas burner in an off-grid application. The cook top is also provided with second control loop for delivering power from an on-grid AC power source to the control valves and spark ignition module. The second control loop may operate independently of the first control loop or may be connected in parallel with the first control loop, the second control loop receiving AC power through an AC-to-DC converter.

The invention relates to a lightweight safe smart power grid communication method and system based on a block chain. Trusted authority is responsible for managing and distributing secret information in the system; a control center is responsible for integrating, processing and analyzing periodic time sequence power consumption data of all users in a community network; a gateway is responsible foraggregating the power consumption data and forwarding the communication data; a sensing node is responsible for collecting electricity consumption data in real time and reporting the electricity consumption data to the control center, and the method comprises the following specific steps: a system initialization stage; a security data collection stage; an accounting node selection stage; a new block generation stage; a block verification stage; a data aggregation stage; an aggregated data recovery stage; and a decision support stage. On the basis of deeply researching and analyzing the existing achievements of the block chain technology in the field of smart power grid application, the lightweight safe smart power grid communication method and system based on the block chain technology arerealized, the confidentiality and integrity of communication data are ensured, and the privacy information of users can be effectively protected.

The invention discloses a parallel load balancing method for balancing the calculation amount of an unstructured grid unit, and aims to improve the parallel calculation load balancing performance andthe parallel calculation speed of an unstructured grid application. The technical scheme comprises the following steps of firstly generating a two-dimensional non-structural grid; then, using an unstructured grid structured processing method for carrying out localization on unstructured grid related files; generating an unstructured grid local direction array and a key element array; secondly, based on the local direction array of the non-structural grid, conducting load balancing of the computational complexity level between grid units in a recursive template selection mode, finally, conducting load balancing of the computational complexity level between processors through a grid subdivision method, and distributing the computational complexity to the processors in a sub-grid area distribution mode. According to the method, on the basis of load balancing of the grid quantity between the processors, balancing of the calculated quantity between the grid units is achieved, the calculatedquantity of the processors is matched with the calculation capacity of the processors, and the load balancing performance and the parallel calculation speed are improved.

The invention relates to a power grid data integrity detection system and a detection method based on a blockchain technology, and belongs to the technical field of data integrity detection methods ofpower grid application systems. The system comprises a hash module, a block module, a blockchain module and a distributed module. The hash module is used for encrypting the power grid business data and ensuring the data integrity; the block module is used for storing data, ensuring the integrity of the data and detecting whether the data is tampered or not; the blockchain module is used for testing the efficiency of the system and the relationship between the mining time and the number of blocks, so as to further optimize the system; and the distributed module is used for simulating system data. According to the power grid data integrity detection method based on the blockchain technology, a mode of combining a blockchain technology and a power grid service is applied; according to the method, investigation, realization and quantitative evaluation of the power grid service system are realized, and the performance of the system is realized, thereby achieving the detection of data integrity, carrying out the quantitative evaluation and performance upgrading of the system according to the data stored in the blockchain, finally enhancing the user experience, and greatly improving theoperation and maintenance efficiency of the service system.

The invention discloses a grid application middleware system facing to a distributed automobile safety collaborative design, comprising: a finite element model assembling service module, a simulation monitoring service module, and a result analysis service module. The finite element model assembling service module dynamically assembles CAE module provided by all parties participating in the collaborative design, so as to finally form a whole vehicle CAE digital model which can be solved. The simulation monitoring service module realizes a finite element calculation function of vehicle crash, a calculation course controlling function, a calculation detecting function and a finite element module verification function. The result analysis service module realizes a resolution function for crash result. The three modules are associated with each other, or run separately. The invention hides key technologies via reasonable division for the whole finite element model and an extraction technology of solving result, so as to solve out cooperating with a security requirement of all parties for intellectual property.