KR20140036869A - Distributed processing system based on hla/rti for sedris environmental federate automatic generation - Google Patents

Abstract

Disclosed is a distributed processing system based on HLA/RTI for the automatic generation of environmental federate. According to embodiments of the present invention, if a user inputs environment requirement specification content into FOM consisting of an XML language, environmental federate having attributes corresponding to the content is automatically generated such that environment experts who are unfamiliar with programming can easily perform operations of an entire simulation system, thereby improving reliability and professionalism of environmental data. Also, each of the generated environmental federates can easily search for desired environmental data among environmental data that is STF converted through a common SEDRIS data server. Accordingly, it is easier to retrieve environmental data corresponding to a given space and publish the data in federation. [Reference numerals] (30) SDEFIS data server; (50) HLA/RTI server; (60) Environmental federate generation unit; (62) Environment requirement specification input module; (64) Automatic federate setting and interlocking mdoule; (AA) Environmental federate 1; (BB) Environmental federate 2; (CC) Environmental federate N

Description

HTL / RTV based distributed processing system for automatic environment federation generation {DISTRIBUTED PROCESSING SYSTEM BASED ON HLA / RTI FOR SEDRIS ENVIRONMENTAL FEDERATE AUTOMATIC GENERATION}

The present invention relates to an HLA / RTI-based distributed processing system for automatic generation of environment federation, and more particularly, a HLA / RTI-based distributed processing system in which a corresponding environment federation is automatically generated when configuration data for environmental requirements is input. It is about.

In the distributed defense simulation system, interoperability between simulators is a key factor in order for heterogeneous simulators to work together. However, interoperability is hampered by the problem of exchanging synthetic environmental data, because most simulators have their own environmental data formats, making them difficult to interoperate with.

As such, due to the different types of environmental data representations, a synthetic environment that is not intended by the entity may be represented to receive wrong environmental information, or even the data itself may not be available.

To solve this problem, a standard environmental data format for mutual data exchange was required, and the Synthetic Environmental Data Representation and Interchange Specification (SEDRIS) was developed. SEDRIS provides a standard mechanism for the exchange and reuse of environmental data between heterogeneous simulators.

The range of expression of SEDRIS is so vast that it can be expressed in all environments, including ocean, terrain, atmosphere and outer space. SEDRIS consists of five components: Data Representation Model (DRM), Environmental Data Coding Specification (EDCS), Spatial Reference Model (SRM), SEDRIS Interface Specification (Application Program Interface (API)), and SEDRIS Transmittal Format (STF). .

Here, DRM means environment data structure, EDCS means environment object name and characteristic, SRM means coordinate system for environment representation, STF means file storing environment data, and API means environment data. It makes it accessible. For example, when a data provider supplies environmental data, SEDRIS data is generated and stored in STF data through DRM, SRM, and EDCS.

As such, SEDRIS provides a software interface with standard grammar, semantics, and environment structure using the above-mentioned configurations, and integrates various information from 3D model to height map.

On the other hand, studies on improving the performance of RTI linked to SEDRIS and SEDRIS environment representation have been actively conducted, but studies on the supply of environmental data in the entire simulation system are insufficient.

Accordingly, embodiments of the present invention, when the configuration data for the environmental requirements specification is input, the corresponding environment federation is automatically generated and automatically linked with the SEDRIS and HLA / RTI server, so that environmental experts unfamiliar with programming to supply the environmental data The purpose is to provide a HLA / RTI-based distributed processing system for the automatic generation of environmental federation that can easily perform the work of the simulation system.

Accordingly, the HLA / RTI-based distributed processing system for automatically generating the environment federation according to an embodiment of the present invention, SEDRIS (Synthetic Environmental Data Representation and management) for managing one or more environmental data converted from the selected environmental data format into an STF file Interchange Specification) data server; An HLA / RTI server for providing predetermined spatial information to an environment federation in a federation having a federation object model (FOM) and performing a middleware function to enable communication between the environment federations; An environment federation generation unit that automatically generates an environment federation for retrieving environment data corresponding to spatial information received from the HLA / RTI server from the SEDRIS server when setting data for an environment requirement specification is input; .

In an embodiment, the environment federation generation unit may include an environment requirement specification input module configured to receive an environment request specification information related to selection of an environment data file, publish / subscribe, and property information of an environment federation to be generated. and; And an automatic federation setting and interworking module for automatically setting an environment federation having a FOM document linked with the HLA / RTI server based on the received information.

In one embodiment, the configuration data includes a selection of an STF file, an environment requirement specification for Publish / Subscribe, an IP address of the RTI server, a name of the federation to connect to, a name of the environment federation to connect to, and an FOM. And at least one of names of document files.

In one embodiment, the configuration data, characterized in that input via the interface window of the standardized standard model.

In one embodiment, the environment federation, characterized in that the environment data retrieved from the SEDRIS server publish in the federation.

In one embodiment, the environment requirements specification is characterized in that the XML document of the federation object model (FOM) corresponding to the environment data of the selected STF file.

In one embodiment, the environment federation communicates with other environment federations via an HLA / RTI server, and interoperates with the HLA / RTI server by sharing a FOM document in a publish / subscribe manner. Environment federation is characterized in that to search for one or more environmental data stored in the SEDRIS server to create a corresponding FOM document.

In one embodiment, the distributed processing system further comprises a display unit for displaying the current state of the generated environment federation and the environmental data to be published in the federation.

According to the HLA / RTI-based distributed processing system for automatically generating the environment federation according to an embodiment of the present invention, when the user inputs the environment requirement specification into the FOM composed of the XML language, the environment federation having the attribute corresponding thereto is generated. By creating them automatically, environmental experts who are new to programming can easily work with the entire simulation system, improving the reliability and expertise of the environmental data.

In addition, according to the HLA / RTI-based distributed processing system for automatic environment federation generation according to an embodiment of the present invention, each of the generated environment federation, the desired environment of the STF-converted environment data through a common SEDRIS data server The data can be easily retrieved and, accordingly, it is easier to get the environmental data corresponding to a given space and publish it to the federation.

1 is a diagram showing exemplary environmental data managed by a SEDRIS server, according to an embodiment of the invention.
2 is a block diagram showing the overall configuration of a distributed processing system including an environment federation according to an embodiment of the present invention.
3 is a diagram schematically illustrating a structure in which a generated environment federation communicates with an HLA / RTI server and a SEDRIS server according to an embodiment of the present invention.
4 is a diagram illustrating an example interface window for receiving an environment requirement specification for generating an environment federation according to an embodiment of the present invention.
5 is a diagram illustrating a current state after a generated environment federation is interworked with an HLA / RTI server.
6 is a flowchart illustrating an example process for automatically generating an HLA / RTI based environment federation according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the HLA / RTI-based distributed processing system for automatic environment federation generation according to an embodiment of the present invention. In the following description, well-known functions or constructions are not described in detail since they may obscure the subject matter of the present invention.

First, Figure 1 illustrates exemplary environmental data managed by a SEDRIS server, in accordance with an embodiment of the invention. For example, the environmental structure constituting the ocean may be modeled as a three-dimensional spatial structure represented by latitude, longitude, depth, and the like that change over time.

The environment of such a multi-dimensional structure may be composed of dimensional data determining the structure of the structure, attribute data defining the attributes of the space defined by the dimensional data, and numerical data representing actual numerical values of the attributes. 1 illustrates the spatial structure of the marine environment using such a configuration. As shown, there is dimensional data of altitude, depth, latitude, and longitude, which are combined together to define a lattice multidimensional structure. In addition, each cell of the defined structure contains temperature, water pressure, spatial properties of salinity, and numerical data on that property. At this time, since the marine environment continuously changes with time, it is possible to express the spatial structure corresponding to the environmental data only if the progress information of time and the spatial information corresponding thereto are known.

Embodiments of the present invention, by selecting the SEDRIS Transmittal Format (STF), the data of SEDRIS, a synthetic environmental exchange standard as environmental data, to supply the environmental requirements specification and STF data of the FOM document corresponding to the corresponding STF data content When inputting the contents of environment requirement specification as input value, it automatically creates environment federation that is linked with HLA / RTI server and constructs interface, and it is implemented to operate in RTI environment. That is, embodiments of the present invention receive a user's setting to publish user-selected synthetic environment data in an HLA / RTI-based federation, and generate an environment federation corresponding thereto.

Referring to FIG. 2, FIG. 2 is a block diagram showing the configuration of the entire distributed processing system including the environment federation according to the embodiment of the present invention.

The distributed processing system includes various environmental data 10, an STF file converter 20, a SEDRIS data server 30 that manages environmental data, an environment federation generation unit 60, and an environment federation generation. The environment federation 40 automatically generated by the unit 60, and the HLA / RTI server 50 for providing spatial information to the environment federation 40.

The environmental data 10 may be various environmental data having, for example, an environmental data format of a NetCDF, GriB, or ASC II type. Depending on the environmental data to be used, the user can select the corresponding data format. For example, NetCDF is often used as the standard data format for air / marine environments.

The STF file converter 20 stores the selected environment data 10 and converts the stored environment data 10 into a format transferable to the SEDRIS data server 30.

The SEDRIS data server 30 manages one or more environment data which is converted by the STF file converter 20. That is, an environment data file for generating the environment federation 40 is selected, or if there is an environment data search request from the generated environment federation 40, the corresponding environment data is provided to the requested environment federation 40. .

HLA / RTI, meanwhile, was enacted as the IEEE 1516 standard for distributed simulation systems. In HLA / RTI, each client shares the FOM document, forms the entire distributed system, federates the entire system, and calls each client federated. The HLA / RTI server acts as a middleware, and the data sharing method of the entire system follows a publish / subscribe method. Such FOM documents contain the types, formats, and meanings of data sent and received, and there are two types of objects and interactions.

Creating an HLA / RTI-based federation is equivalent to configuring an application, and typically creates a federation by adding a Simulation Object Model (SOM) to the application.

In this embodiment, the HLA / RTI server 50 provides some spatial information to the federation in the federation with the federation object model (FOM). In addition, the HLA / RTI server 50 performs a middleware function to enable communication between a plurality of federated.

The environment federation generation unit 60 searches for environment data corresponding to the spatial information received from the HLA / RTI server 50 from the SEDRIS data server 30 when setting data for environment requirements is input. Automatically generate 40.

Here, the specification of the environment request is an XML document of a federation object model (FOM) corresponding to the environment data of the selected STF file. That is, it is preferable to use XML as a language for creating a FOM document corresponding to the environment data of the selected STF file, because the XML language can be easily accessed by users who are not familiar with programming, and user-defined tags. This is possible and is more advantageous in structuring and transmitting environmental data.

Here, the configuration data includes an environment requirement specification related to selection of STF files, publish / subscribe, IP address of RTI server, name of federation to be connected, name of environment federation to be connected, and document file of FOM. It may include at least one or more of the name. In addition, such setting data is input through an interface window of a standardized standard model.

The environment federation 40 publishes the environment data retrieved from the SEDRIS data server 30 in the federation.

In addition, when there are a plurality of environment federations 40, each environment federation 40 communicates with other environment federations 40 via the HLA / RTI server 50, and publish / subscribe method. By interworking with the HLA / RTI server 50 by sharing the FOM document.

The environment federation 40 also retrieves one or more environmental data stored in the SEDRIS data server 30 and creates a corresponding FOM document. The created FOM document is published to the federation and shared with other environment federations 40.

Further, although not shown, the distributed processing system according to the present invention includes a display unit (not shown) for displaying the current state of the generated environmental federation 40 and the environmental data to be published to the federation. It may include.

3 schematically illustrates a structure in which an environment federation communicates with an HLA / RTI server and a SEDRIS server according to an embodiment of the present invention. As shown in FIG. 3, the environment federation generation unit 60 includes an environment requirement specification input module 62 and an automatic federation setting and interworking module 64 for automatic generation of the environment federation 40. do.

The environment requirement specification input module 62 receives selection of a desired environment data file, environment requirement specification information related to publish / subscribe of environment data, and characteristic information of environment federation to be generated.

In this regard, FIG. 4 shows an example of an interface window for receiving an environment requirement specification for generating an environment federation. As shown, the interface window for the environmental requirements specification includes the address of the environmental data file, the results of the data analysis, the configuration and properties of the data to be published, the data type, the IP address of the RTI server to be associated with, the target federation name, and the current generation. Each input window for specifying a federation name and the like, but not limited thereto, is provided.

The interface window according to the embodiment of the present invention preferably uses a standardized standard model. This is because using a single standardized interface specification is advantageous for reusability and compatibility when considering communication between the environment federation to be created and the existing environment federation.

The federated automatic configuration and interworking module 64 automatically generates the environment federated 40 having the FOM document interworking with the HLA / RTI server 50 based on the information received through the enviromental requirements specification input module 62. Set to. The current state of the environment federation 40 set as described above and a list of environment data to be posted in the federation may be displayed on a display unit (not shown) included in the system.

In this regard, Figure 5 displays the current state after the environment federation generated in accordance with an embodiment of the present invention is linked with the HLA / RTI server. As shown in Fig. 5, the displayed window is provided with a display window for displaying the history of the post / registration data of the environment federation that has been set, and a display window for displaying the current environment federation status.

Hereinafter, referring to FIG. 6, an exemplary process for automatically generating HLA / RTI based environment federation according to an embodiment of the present invention will be described in detail.

First, when an environment data file is selected from the SEDRIS data server (S10), the corresponding environment data contents are displayed (S20). For example, when the STF file is selected from the SEDRIS data server, the environment data included in the STF file is displayed on the display window such as time, latitude, longitude, depth / height, and attributes related to a specific space.

Then, the configuration data for automatic generation of environment federation is input through the interface window of the standardized standard model.

Specifically, the property of the environment data to be published (Publish) is set through the FOM document (S30). In addition, other configuration data for environment requirements to be subscribed (Subscribe) is received through the FOM document (S40). In addition, the characteristics of the environment federation to be generated, such as the IP address of the RTI server, the name of the federation to be connected, and the name of the current environment federation, are set through the document of the FOM (S50).

When setting up to the characteristics of the environment federation as described above, the generated environment federation is automatically linked to the IP address of the input RTI server, and automatically linked with the HLA / RTI server by sharing the created FOM document (S60). In this way, the environment federation linked with the HLA / RTI server can communicate with each other by sharing the FOM document with other connected environment federations, and each environment federation receives the spatial information from the linked HLA / RTI server and the SEDRIS server. Corresponding environmental data can be retrieved through.

Finally, the current state of the generated environment federation and the contents of the environment data to be posted / registered are displayed in the federation (S70).

According to this, each generated environment federation can easily search for the desired environment data among the environment data stored in the common SEDRIS data server. It can be easily performed to improve the reliability and expertise of the environmental data.

Although the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the appended claims as well as the equivalent scope of the claims.

As described above, according to the HLA / RTI-based distributed processing system for automatic environment federation generation according to an embodiment of the present invention, when the user enters the environment requirements specification in the FOM composed of XML language, By implementing automatic generation of environment federations with attributes, environmental experts unfamiliar with programming can facilitate the operation of the entire simulation system, improving the reliability and expertise of environmental data.

10-Environment Data 20-STF File Converter
30-SEDRIS Data Server 40-Federated Environment
50-HLA / RTI Server 60-Environment Federated Generation
62-Environmental Requirements Specification Input Module 64-Federated Automatic Configuration and Interlocking Module

Claims (8)

A Synthetic Environmental Data Representation and Interchange Specification (SEDRIS) data server that manages one or more environmental data in which the selected environmental data format is converted into an STF file;
An HLA / RTI server that provides predetermined spatial information to the environment federation in the federation having a federation object model (FOM) and performs a middleware function to enable communication between the environment federations;
An environment federation generation unit that automatically generates an environment federation for retrieving environment data corresponding to spatial information received from the HLA / RTI server from the SEDRIS server when setting data for an environment requirement specification is input; Characterized in that,
HLA / RTI based distributed processing system for the automatic generation of environmental federation. The method of claim 1,
The environmental federation generation unit,
An environment requirement specification input module configured to receive environment requirement specification information related to selection of an environment data file, publish / subscribe, and characteristic information of an environment federation to be generated;
And a federation automatic setting and interworking module for automatically setting an environment federation having an FOM document interworking with the HLA / RTI server based on the received information.
HLA / RTI based distributed processing system for the automatic generation of environmental federation. The method of claim 1,
The setting data includes:
Includes at least one of an STF file selection, an environment specification with respect to Publish / Subscribe, the IP address of the RTI server, the name of the federation to contact, the name of the environment federation to contact, and the name of the document file in the FOM. Characterized by
HLA / RTI based distributed processing system for the automatic generation of environmental federation. 4. The method according to any one of claims 1 to 3,
The setting data is characterized in that is input through the interface window of the standardized standard model,
HLA / RTI based distributed processing system for the automatic generation of environmental federation. 3. The method according to claim 1 or 2,
The environment federation, characterized in that publish the environment data retrieved from the SEDRIS server in the federation,
HLA / RTI based distributed processing system for the automatic generation of environmental federation. The method of claim 1,
The environment requirement specification is an XML document of a federation object model (FOM) corresponding to the environment data of the selected STF file.
HLA / RTI based distributed processing system for the automatic generation of environmental federation. The method of claim 1,
The environment federation communicates with other environment federations through an HLA / RTI server, and interoperates with the HLA / RTI server by sharing a FOM document in a publish / subscribe manner.
The environment federation is characterized in that to search for one or more environmental data stored in the SEDRIS server to create a corresponding FOM document,
HLA / RTI based distributed processing system for the automatic generation of environmental federation. 3. The method according to claim 1 or 2,
And a display unit for displaying the current state of the generated environment federation and environment data to be published in the federation.
HLA / RTI based distributed processing system for the automatic generation of environmental federation.

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