CN101038604A - Vehicle impact strength computer synergic design and simulation system - Google Patents
Vehicle impact strength computer synergic design and simulation system Download PDFInfo
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Abstract
A car crash performance computer collaborative design and simulation system based on grid is provided, which comprises from the bottom to the top: a resource layer comprising and managing a plurality of basic infrastructures and software/hardware, a grid middleware layer based thereon for virtualizing the packaged and integrated resource, opening a resource calling interface in conformity of the grid calculation standard to the service layer so as to provide a grid environment to the service layer and the application layer, a service layer service layer uses the Web service technology to pack the virtualized resource to provide the service to the grid, an application layer uses the grid technique and XML/WEB SERVICES techniques to provide a service application interface in the grid user interface to realize the concealment of the application details and resource information to the terminal user and support and calling with a graphic interface to the car crash performance computer collaborative design and simulation.
Description
Technical field
The present invention relates to a kind of analogue system of field of computer technology, particularly relate to a kind of design of vehicle collision resistant collaborative computer and analogue system based on grid.
Background technology
At the vehicle collision resistant design field, collaborative design and emulation can be brought into play the characteristics of small investment instant effect, obtain several different design proposals and checking thereof apace with less investment.And along with the development of globalization, vehicle complete vehicle production commercial city must be cooperated with supplier, so the crash-worthiness design is nonlinear often and complementary.
Find through literature search prior art, people such as Sylvie Mathelin are at INTERNATIONALCONFERENCE ON ENGINEERING DESIGN ICED 05 MELBOURNE, AUGUST 15-18 has delivered article " IMPROVINGCOLLABORATIVE DESIGN TOOLS IN AUTOMOTIVE INDUSTRY:A CASE STUDY " (improvement auto industry collaborative design instrument: case study) in 2005 (the estimation engineering design meetings of holding in the Melbourne in 2005).Mentioned in this article by CRP (CustomerRequirements Pilot, the customer demand omniselector) drives Automobile Design, mode based on project storage (projectmemory) realizes sharing with collaborative of information, extracts and the corresponding result of customer demand from global outcome at last.This system has emphasized information sharing between different participants.Yet shared in this system is limited, dangerous and static.Do not mention simultaneously and how to realize the simulating, verifying that designs a model.Therefore in Automobile Design, particularly also be difficult to be used widely in the crash-worthiness design.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of design of vehicle collision resistant collaborative computer and analogue system based on grid is provided.The present invention has realized adopting grid computing distributed simulation technology to solve multidisciplinary, the extensive and nonlinear computation problem in the Automobile Design.
The present invention is achieved by the following technical solutions, characteristics according to grid platform and running environment, the present invention set up towards collaborative design of vehicle collision resistant area of computer aided and analogue system, be to be core with the high-performance computer, based on long-range, the distribution of computing grid, the computing machine integrated architecture of isomery.Utilize this system, can realize digital modeling vehicle complete vehicle, parts; Realization is to the numbered analog simulation of automobile in the impact test process; Realization is to the visualization display of Simulation results.System of the present invention adopts stratification and modular architecture, comprises four layers, bottom-up being respectively: resource layer, grid middleware layer, service layer and application layer:
Described resource layer comprises the infrastructure and the software/hardware resource of the collaborative design and the emulation of various isomeries, as computational resource, storage resources, Internet resources, software resource and data resource etc.Resource layer is the basis of collaborative design and emulation, also is the basis of total system.The major function of resource layer is discovery, description, location, tissue (registration), distribution, monitoring (resource information is obtained), renewal and the information issue etc. of management resource.The present invention is implemented under the resources centralized management in conjunction with grid computing technology, and each resource of disperseing possesses maximum autonomy, simultaneously can be independently or the intergration model of finishing the work with other resource coordinating.In addition, between infrastructure and resource model integrated aspect, an integrated framework plug and play, open is provided, it can dynamically refresh each individual state of resources and attribute.Simultaneously, individual resource can be registered oneself, and accepts and handle information from other resource.
Described grid middleware layer is based upon on the resource layer basis, and will encapsulate and integrated good resource virtualizing, to the open resource transfer interface that meets the grid computing standard of service layer, thereby provides a grid environment for service layer and application layer.The grid middleware layer function is that the various services for service layer provide a unified grid service container on the resource of various distributions, isomery.System of the present invention adopts general grid middleware and WEB SERVICE technology according to the demand of vehicle collision resistant design, and definition becomes service with the exploitation sharing information model with core set; Based on the B/S structure, adopt the message exchange standard of XML, according to affiliate's degree of belief, realize integrated based on the information sharing of XML/Web and application interface.Finally on information integrated platform, provide service, contain various Analysis Service, and allow terminal users such as each domain expert and service provider in grid environment, to move these services with transparent way.Realization is towards the resource sharing of product lifecycle, integrated and collaborative work.
Described service layer is the virtualized resource of middleware layer, is mesh services with the calling interface of Web service technology encapsulation resource.Application layer just can be called the various resources of bottom by service layer like this.Service layer comprises the needed various fine-grained concrete services of concrete application in the application layer.As Task Distribution and dispatch service, project management service, data, services, knowledge services, subscriber management service, monitor service, design service, service of simulation and display result service etc.These mesh services are the bases of using in the application layer, are to form the basic module of using.
Described application layer is positioned at the top of whole system, at vehicle collision resistant design and simulation analysis, adopt gridding technique and XML/WEB SERVICES technology, on the service layer basis, by the service application interface is provided in the grid user interface, realization realizes details and resource information to terminal user's hiden application, can the support of graphic interface is provided and call for vehicle collision resistant collaborative design and emulation.
Technology such as Application Grid framework of the present invention is integrated, the service is integrated, resource management and collaborative simulation on the grid middleware basis, are set up towards collaborative design of vehicle collision resistant area of computer aided and emulation graticule.By Automobile Design in the virtual cooperative surroundings and the polymerization of collision simulation resources effective are formed a dynamic cooperative design platform, provide unified visit that the unified security access mechanism of user, huge computing power, abundant information processing instrument, visualization tool, error resilience tool wait fully the sharing of the information of reaching, data and safety management etc., problems such as the design information safety that is faced in the vehicle collision resistant collaborative design process is shared to solve, the real-time monitoring of management for Virtual Organizations, collaborative simulation and resource management.Finally be implemented in the processes such as vehicle collision resistant design, analysis and test, a plurality of tissues of distribution is collaborative on different engineerings field, different department, the geography.
The vehicle collision resistant collaborative design with the major function of analogue system is: ripe at present automobile computer Aided Design (automobile CAD) technology and computer-aided engineering (automobile CAE) technology combined with the grid computing new technology, utilize the grid system platform, realize strange land, long-range, the collaborative car load towards vehicle collision resistant, parts design, and the test of numerical value impact simulation.
Compared with prior art, four layer architectures that the present invention sets up have solved between car manufactures, parts suppliers and the affiliate thereof, and the restriction of geographic position, mechanism or subject between the different designs personnel, realized being the integrated of the multi-field integrated and many places of CAD/CAE/CAT of target, many tissues with the vehicle collision resistant.To the method for participant's shared portion data, having broken through in the process of vehicle collision resistant collaborative design in the past is the intellecture property of protecting in the vehicle newly developed (as material behavior, modelling supposition etc.), can only carry out the restriction of partial model emulation by only in the present invention.The mechanism that will break the wall of mistrust between car manufactures and their affiliate, each personnel that participate in design can the design that it is own puts into and carries out the numerical simulation that designs towards vehicle collision resistant on the model that the overall situation shares.In contrast to the local model, this method can provide more real result, and needs design cycle still less.Based on above research characteristics, the present invention has realized adopting multidisciplinary, the extensive and nonlinear computation problem in the grid computing distributed simulation technology solution Automobile Design.The Digital Simulation problem of indeterminable complication system of can utilizing public resource to solve individual enterprise owing to lack hardware resource, software resource and human resources.
Description of drawings
Fig. 1 structured flowchart of the present invention
Fig. 2 workflow diagram of the present invention
Fig. 3 the present invention each role's major function and implementation content
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed embodiment and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
Present embodiment utilizes grid computing technology and prior art, realizes the comprehensive information sharing of cross-region, effective polymerization of various resources and dispersion, and model and data carried out effective organization and administration, isomery exchange and unified visit etc.
At the characteristics of distributed simulation cooperative surroundings and gridding technique, adopt architecture as shown in Figure 1.Net point infrastructure shown in Figure 1 is meant various artificial resources, as model resource (comprising behavior model, environmental model of physical system model, people etc.), instrument resource (as modeling tool, visualization tool etc.), data resource, storage resources.The grid general purpose module refers to have the mesh services of universality, as remote data access service, cooperative scheduling service, clobal service, security service etc.Existing mature technology is used for reference in the realization of grid general purpose module.The emulation graticule assembly is an emulation field Common Services Components commonly used, as the data management that all needs in the collision simulation system, prefer editor, recurrence and analysis tool etc.Realize collaborative modeling and collaborative simulation integrated design in emulation graticule, the integrated management of modeling resource and artificial resource is with shared; Realize the assembling and the operation of emulation graticule assembly; Realize the demand of different grain size model, different real-time emulation.
As shown in Figure 1, the present embodiment structure is divided into four layers: resource layer, grid middleware layer, service layer and application layer.
Described resource layer has comprised the sharable resource of the various isomeries that belong to different tissues or department, as high-performance computer, software, network or the like.Resource layer is the basis of collaborative design and emulation, also is the basis of total system.The major function of resource layer is discovery, description, location, tissue (registration), distribution, monitoring (resource information is obtained), renewal and the information issue etc. of management resource.These resources in vehicle collision resistant design and the emulation are dynamic, can withdraw from any time and add, and have the autonomy of height.Present embodiment is divided into three aspects to the exploitation of resource management: modeling, encapsulation, management and integrated.The modeling of resource is the basis and the foundation of collaborative design.But but seriation in the Resource Modeling of solution Automobile Design of present embodiment emphasis and analogue system, reusability and regroup requirement, and has good extended capability.Consider the characteristics of resource management and the requirement of grid computing technology, present embodiment adopts extend markup language (XML) to carry out modeling and description to making resource information, and use XML data performance form definition language---extended format Formad lanaguage (XSL), from different views, show the data of resource.In the description of resource model, adopt OO thought to carry out information classification and describe by abstract step by step form, at first define some simple base class sub-objects, methods such as the derivation by object, succession are set up more complicated object model again.The encapsulation of resource.On the Resource Modeling basis, the design resource and the Legacy System of existing distribution, isomery in the system encapsulated, realize connecting with other service by the mesh services interface of standard then, and every network foundation function of providing by framework of common realization.The method that present embodiment adopts WSDL (Web Service Description Language) standard that design resource is described and encapsulates.At first, come out the static attribute of design resource and dynamic attribute are abstract, be described as service data.For attribute definition provides unified standard, making between service and the user does not have ambiguity to service describing, for service search and discovery provide safeguard.Then, service interface with operation is abstract comes out, be described as wsdl document, and realize interface.With reference to the interface Naming conventions in the semantic dictionary of resource, adopt the WSDL specification description to make the interface of resource service, comprise docking port type, operation, message, port and the definition of the related service that provides.
Described grid middleware layer is based upon on the resource layer basis, is responsible for management, detection and the task assignment of various resources.In addition, this layer to resource according to the demand of service layer to resource virtualizing, so not only can be user-friendly to, can resources conseravtion not be subjected to unwarranted visit and use yet.The grid middleware layer adopts technology such as relevant grid middleware, XML, Web Service, UDDI and standard to set up, and to the open resource transfer interface that meets the grid computing standard of service layer, thereby provides a grid environment for service layer and application layer.The grid middleware layer is an open framework, commercial software, and Legacy System can add and withdraw from easily.
Described service layer occupy between application layer and the grid middleware layer.This layer is used for the virtualized resource of middleware layer is encapsulated as mesh services with Web service technology, and is published on vehicle collision resistant design and the artificial network environment, provides corresponding interface to call to application layer.Service in the service layer is the packing that resource is realized, by message exchange pattern and other resource or communication for service.Can improve the control ability that the Resource Owner uses resource to resource as service.The Analysis Service of present embodiment is integrated is research under automobile collaborative design applicable cases, develop a kind of strategy and industrial simulated program is placed into enables in the network analysis service, enable grid problem and find the solution in the environment thereby it can be used in; And design an Analysis Service general framework, to satisfy industrial terminal user's demand.This work concentrates on the demand of vehicle collision simulation test, selects (rather than definition) suitable standard, and provides with reference to exemplary applications.Based on correlation technique such as XML, SOAP, WSDL, UDDI, WS-Security or the like, adopt the Analysis Service standard that is similar to WEB SERVICES, with simulation code with WEB SERVICES technological incorporation in Analysis Service.
Described application layer occupy the top of total, and this layer comprised the various basic application of vehicle collision resistant design and emulation, as simulation calculation, design, user management, project management etc.The user can specifically use by a visit of grid user interface and a use based on Web browser exploitation of application layer.By service layer and grid middleware layer, application layer has realized and resource " decoupling zero ".Concrete application is not bound with specific physical resource, thereby has increased opening, dynamic and the security of system.
The above resource layer, grid middleware layer, service layer and application layer message call relation are: the user enters vehicle collision resistant collaborative design and analogue system by " grid user interface ", by the various application that " grid user interface " provides, call in the service layer respective services and finish the work.And every resource in the resource layer is visited and called to the service in the service layer, as computational resource by the resource interface of grid middleware layer encapsulation.This architecture has realized dynamic connection, particularly application layer between each layer and the service layer dynamic binding to resource.Resource can add and remove as required automatically, and does not influence application and service.Thereby realized the dynamic of " vehicle collision resistant collaborative design and emulation " tissue of on this platform, setting up.
The running environment of vehicle collision resistant collaborative design and emulation graticule system as shown in Figure 2.Whole system environment is made up of three class dominant roles: car load manufacturer (be called for short OEM), parts suppliers (being called for short the parts merchant) and serve the provider.The car load merchant is responsible for the car load design and the division of labor; Parts suppliers is responsible for the design and the simulating, verifying of vehicle collision resistant associated components; The service provider is the third party of car load merchant and parts merchant common trust, and it is responsible for providing various resources, service and basic grid virtual environment required in design, the simulation process.The concrete workflow of " vehicle collision resistant collaborative design and emulation " grid:
(1) under the grid user interface, car load manufacturer (be called for short OEM), parts suppliers (being called for short the parts merchant) and serve the provider and enter vehicle collision resistant collaborative design and analogue system by " user management " in the application layer.At this moment " user management " call corresponding to relevant " subscriber management service " in the service layer.Use with the concrete corresponding relation of serving and see table.Table 1
| Application in the application layer | Related service in the corresponding service layer |
| User management | Subscriber management service |
| Project management | The project management service role distributes and the dispatch service data, services |
| Modelling | The service of design service data |
| Collision simulation | Task Distribution and dispatch service data, services service of simulation monitor service |
| Result treatment | The service of display result service knowledge service data |
(2) the vehicle complete vehicle developer starts the vehicle collision resistant design item by " project management " in the application layer.By " data, services ", the input 3 d modeling software sets up car load and parts to be designed (are called for short: the geometric model of surrounding environment parts); Input automobile finite element grid submodel and computation model: a car load assembling model that does not contain parts (is called for short: the car load assembling model); One only comprises the partial assembled model of parts environmental model on every side; (be called for short: the partial assembled model).Wherein, the partial assembled model comprises following information: cell type; The node number; Unit and material number; Load number; Connect node listing; Contact tabulation or the like; The car load finite element model comprises all information of analyzing needs; Particularly boundary condition and load.Have the right access component surrounding environment geometric model and part of parts merchant is equipped with the limit meta-model;
(3) automobile component is negotiated the transfer of usefulness " modelling " application, and by " data, services ", the parts merchant obtains the cad model of surrounding environment geometric model with design part; By " design service " parts merchant design part, divide grid, generate the finite element simulation calculation document, store (the car load merchant haves no right to visit) in the grid system environment;
(4) serve the provider and call " collision simulation " and use, by " data, services " and " service of simulation " etc., assembling car load finite element model and part are equipped with the limit meta-model, set up overall finite element simulation computation model, and carry out simulation calculation, export the result; Can monitor the collision simulation calculation process at any time by " monitor service " parts merchant.
(5) each side calls " result treatment " and uses, and by " data, services ", display result service and " knowledge services ": the parts merchant obtains the result of calculation file handled by computational resource service side: parts simulation result and parts surrounding environment simulation result; The car load merchant also can check the net result of collision simulation under the situation that obtains parts merchant mandate.
More than introduced information processing interactive relation between each ingredient by design and simulation flow.Table 1 has been described the corresponding relation between each is mainly used and serves in the present embodiment system.As shown in the figure, same service can be corresponding to different application, and the modular design of system has not only been strengthened in this design, and owing to share same service, information interchange between the application and processing are more convenient.Table 1 has been described the major function of each role in the present embodiment system, and key step and the content be responsible for.Decompose the information processing interactive relation of the service in the concrete application and service layer in the application layer in detail below in conjunction with table 1 and Fig. 3, and key step and the content be responsible for.
1. user management
Corresponding with service: subscriber management service
Be in charge of car load manufacturer in the system, parts merchant and serve the roles of each side such as provider, authentification of user, resources allocation.Share various data and file according to user role, thereby guaranteeing under the situation of intellecture property safety separately, realize collaborative to greatest extent and share.
2. project management
Corresponding with service: project management service, Task Distribution and dispatch service and data, services
Collaborative between the different role is in charge of in the project in project management, also manages the design and the emulation of several crash-worthiness projects that same role participates in simultaneously on the other hand.Provide follow-up different application and service in the project according to role's difference, store and obtain as different models etc.
3. modelling
Corresponding with service: design service and data, services
Modelling is general only available to the Component Design merchant.By the service in " modelling ", the parts merchant obtains the cad model of surrounding environment geometric model with design part; Parts merchant design part is divided grid, generates the finite element simulation calculation document, stores in the grid system environment.
4. collision simulation
Corresponding with service: Task Distribution and dispatch service, data, services, service of simulation and monitor service
After design was finished, parts merchant remote activation " collision simulation " was used, the long-range assembling of carrying out whole vehicle model and partial model of parts merchant, and the assembling result checked; If assembling makes mistakes, then again parts are divided grid, set up the parts limited element calculation model.After assembling is finished, start service of simulation, and the supervisory control simulation process.If emulation makes mistakes, end emulation; If a plurality of schemes are carried out many wheels and are calculated, can once submit to, use queuing system;
5. result treatment
Corresponding with service: display result service, knowledge services and data, services
After emulation was finished, start the result's partition in the display result service in " result treatment ": partition car load simulation result was parts simulation result, parts environmental simulation result and car load simulation result; Respectively the parts destination file is transferred to corresponding component merchant place; Receive and serve provider partition and finish notice, the parts merchant also starts " result treatment ", calls data, services and downloads the corresponding component result, calls the display result service, carries out the simulation result inspection.Meet the demands as the result, then notify the car load merchant.Similarly, the car load merchant also calls " result treatment " and uses, and downloads parts and car load simulation result and checks; If dissatisfied, send and be notified to the associated components merchant, if satisfied, then finish design item.
Claims (8)
1, a kind of design of vehicle collision resistant collaborative computer and analogue system based on grid is characterized in that, comprise four layers, bottom-up being respectively: resource layer, grid middleware layer, service layer and application layer:
Described resource layer comprises and manages the infrastructure and the software/hardware resource of the collaborative design and the emulation of various isomeries, resource layer is the basis of collaborative design and emulation, resource layer is in conjunction with grid computing technology, be implemented under the resources centralized management, each resource of disperseing possesses maximum autonomy, simultaneously can be independently or the intergration model of finishing the work with other resource coordinating; Between infrastructure and resource model integrated aspect, an integrated framework plug and play, open is provided, and it can dynamically refresh each individual state of resources and attribute, simultaneously, individual resource can be registered oneself, and accepts and handle information from other resource;
Described grid middleware layer is based upon on the resource layer basis, and will encapsulate and integrated good resource virtualizing, to the open resource transfer interface that meets the grid computing standard of service layer, thereby provides a grid environment for service layer and application layer; The various service for service layer on the resource of various distributions, isomery of grid middleware layer provide a unified grid service container, demand according to the vehicle collision resistant design, adopt general grid middleware and WEB SERVICE technology, definition becomes service with the exploitation sharing information model with core set; Based on the B/S structure, adopt the message exchange standard of extend markup language, degree of belief according to the affiliate, realization is integrated based on the information sharing of XML/Web and application interface, finally on information integrated platform, provide service, contain various Analysis Service with transparent way, and allow the terminal user in grid environment, to move these services, realize towards the resource sharing of product lifecycle, integrated and collaborative work;
Described service layer is with the virtualized resource of middleware layer, calling interface with Web service technology encapsulation resource is a mesh services, application layer just can be called the various resources of bottom by service layer like this, service layer comprises the needed various fine-grained concrete services of concrete application in the application layer, these mesh services are the bases of using in the application layer, are to form the basic module of using;
Described application layer is positioned at the top of whole system, at vehicle collision resistant design and simulation analysis, adopt gridding technique and XML/WEB SERVICES technology, on the service layer basis, by the service application interface is provided in the grid user interface, realization realizes details and resource information to terminal user's hiden application, for vehicle collision resistant collaborative design and emulation provide the support of graphic interface and calls.
2, design of vehicle collision resistant collaborative computer and analogue system based on grid according to claim 1, it is characterized in that, described resource layer, adopt extend markup language to carry out modeling and description to making resource information, and use extensible markup representation formats definitional language---extended format Formad lanaguage, from different views, show the data of resource; In the description of resource model, adopt OO thought to carry out information classification and describe by abstract step by step form, at first define some simple base class sub-objects, set up more complicated object model by derivation, the inheritance method of object again.
3, design of vehicle collision resistant collaborative computer and analogue system based on grid according to claim 1; it is characterized in that; described resource layer; on the Resource Modeling basis; design resource and Legacy System to existing distribution, isomery in the system encapsulate; mesh services interface by standard is realized connecting with other service then, and every network foundation function of being provided by framework of common realization.
4, according to claim 1 or 2 or 3 described design of vehicle collision resistant collaborative computer and analogue systems based on grid, it is characterized in that, described resource layer, the method that adopts the WSDL standard that design resource is described and encapsulates, at first, come out the static attribute of design resource and dynamic attribute are abstract, be described as service data, for attribute definition provides unified standard, making between service and the user does not have ambiguity to service describing, for service search and discovery provide safeguard, then, service interface with operation is abstract comes out, be described as wsdl document, and realize interface; According to the interface Naming conventions in the semantic dictionary of resource, adopt the WSDL specification description to make the interface of resource service, comprise docking port type, operation, message, port and the definition of the related service that provides.
5, according to claim 1 or 2 or 3 described design of vehicle collision resistant collaborative computer and analogue systems based on grid, it is characterized in that, described resource layer, be used for discovery, description, location, tissue, distribution, monitoring, renewal and the information issue of management resource, wherein said resource comprises computational resource, storage resources, Internet resources, software resource and data resource.
6, design of vehicle collision resistant collaborative computer and analogue system based on grid according to claim 1, it is characterized in that, described service layer is published to the mesh services that encapsulates on vehicle collision resistant design and the artificial network environment, provides corresponding interface to call to application layer; Service in the service layer is the packing that resource is realized, by message exchange pattern and other resource or communication for service, resource is improved the control ability that the Resource Owner uses resource as service.
7, design of vehicle collision resistant collaborative computer and analogue system based on grid according to claim 1, it is characterized in that, described application layer has comprised the various basic application of vehicle collision resistant design and emulation, comprise simulation calculation, design, user management, project management, the user specifically uses by a visit of grid user interface and a use based on Web browser exploitation of application layer, by service layer and grid middleware layer, application layer has realized and resource " decoupling zero ".
8, design of vehicle collision resistant collaborative computer and analogue system based on grid according to claim 1, it is characterized in that, the user enters whole simulation system by the grid user interface, by the various application that the grid user interface provides, calls in the service layer respective services and finishes the work; Service in the service layer is by the resource interface of grid middleware layer encapsulation, visit and call every resource in the resource layer, realized the dynamic connection between each layer, particularly application layer and service layer are to the dynamic binding of resource, resource adds automatically as required and removes, and does not influence application and service.
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| US20060165040A1 (en) * | 2004-11-30 | 2006-07-27 | Rathod Yogesh C | System, method, computer program products, standards, SOA infrastructure, search algorithm and a business method thereof for AI enabled information communication and computation (ICC) framework (NetAlter) operated by NetAlter Operating System (NOS) in terms of NetAlter Service Browser (NSB) to device alternative to internet and enterprise & social communication framework engrossing universally distributed grid supercomputing and peer to peer framework |
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