CN111399824A - Component port implementation method and terminal based on hybrid transmission mechanism - Google Patents

Component port implementation method and terminal based on hybrid transmission mechanism Download PDF

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CN111399824A
CN111399824A CN202010176590.9A CN202010176590A CN111399824A CN 111399824 A CN111399824 A CN 111399824A CN 202010176590 A CN202010176590 A CN 202010176590A CN 111399824 A CN111399824 A CN 111399824A
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port
dds
corba
development environment
integrated development
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CN111399824B (en
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高欣春
常坤
熊石楼
时志杰
吴二龙
郭岚
许生
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Shanghai Jiefang Information Technology Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/30—Creation or generation of source code
    • G06F8/34—Graphical or visual programming
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/54—Interprogram communication
    • G06F9/547—Remote procedure calls [RPC]; Web services
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Abstract

The invention provides a port realization method and a terminal based on a hybrid transmission mechanism, which comprises the steps of establishing a CORBA port template file, establishing a DDS port template file, integrating a CORBA port into an integrated development environment, and realizing the CORBA port template file in the integrated development environment in a mode of automatically generating a script by a code in the integrated development environment; integrating DDS ports into an integrated development environment, and realizing DDS port template files in the integrated development environment in a mode of automatically generating scripts by codes in the integrated development environment; and integrating CORBA port and DDS port connection in the integrated development environment, and setting constraints in the integrated development environment. The invention solves the problem that the waveform components only adapt to one transmission mechanism, and improves the communication efficiency and reliability among the waveform components; the port is supported to be modeled graphically, the development of the port can be completed only through simple configuration, and the waveform development efficiency is improved.

Description

Component port implementation method and terminal based on hybrid transmission mechanism
Technical Field
The invention relates to the technical field of software radio, in particular to a method and a terminal for realizing a component port based on a hybrid transmission mechanism.
Background
Existing software radio systems typically employ a standard software architecture including a foreign SCA (software communication architecture) standard specification and a national military SRTF (software radio communication equipment architecture) standard specification and corresponding specifications derived from the SCA specification. According to the standard specification of the software architecture, the functional modules in the system are packaged into standard software components, and the communication between the components is realized through input and output ports. The design of the component ports directly determines the system performance and even whether special scenario requirements can be met.
The search of the prior art finds that:
changkun et al published "improved and hybrid transmission mechanism design based on open STRS architecture" in "2018 software-defined satellite peak forum conference abstract collection", which proposes mixing of open space communication radio system (STRS) -oriented CORBA middleware, DDS middleware and RPC middleware to form a hybrid transmission mechanism supporting three communication models of object request call, data-oriented and process-oriented, and has the disadvantages that only how to mix a plurality of middleware is emphasized, no component port analysis is combined, and no clear component port design idea is proposed.
Application No. 201811105155.6, publication No. 109324912A, patent name: a communication method of application management software facing a software communication system structure provides a method for realizing communication between application software facing the software communication system structure by adopting CORBA middleware, and has the defects that a mixed transmission mechanism is not adopted, the requirement of synchronous communication can only be met, and the communication method cannot be realized in an application scene of asynchronous communication and large-amount data transmission.
In summary, in the prior art, the port design of software components in a software radio system usually adopts CORBA middleware as a single transmission mechanism, and the CORBA transmission mechanism adopts a synchronous mode and is suitable for control instruction transmission between components; the DDS transmission mechanism adopts an asynchronous transmission mode and is suitable for data transmission among the components. In practical application, two transmission requirements of control instructions and data exist among waveform components, between the waveform components and logic equipment components, and between the waveform components and service components, if a CORBA transmission mechanism is adopted to transmit data, the working performance of a system is inevitably reduced, and for some harsh performance index requirements, a specific implementation mode is required to avoid the performance bottleneck, so that firstly, the implementation difficulty is complicated, and secondly, the multiplexing of the components is limited due to the fact that a specific non-standard design is brought. However, if the two transmission mechanisms are directly combined, the following technical problems generally occur:
firstly, the transmission mechanism on which the component port depends is relatively redundant, and the performance is influenced;
secondly, the component port should be decoupled from a specific middleware interface, and simple fusion will bring difficulty to later-stage upgrading of the component;
and thirdly, a large amount of codes are required to be added for creating the component ports, the requirement on developers is high, and the development efficiency is influenced.
At present, no explanation or report of the similar technology of the invention is found, and similar data at home and abroad are not collected.
Disclosure of Invention
Aiming at the steps in the prior art, the invention provides a method for realizing a component port based on a hybrid transmission mechanism and a terminal. The method and the terminal are suitable for designing a software radio system based on the SCA standard, the SRTF standard and corresponding standards derived from SCA.
The invention is realized by the following technical scheme.
According to an aspect of the present invention, there is provided a component port implementation method based on a hybrid transport mechanism, including:
establishing a CORBA port template file, wherein the CORBA port template file is used for establishing a component port of a CORBA type, configuring port parameters and receiving parameters transmitted by a developer in a variable mode;
creating a DDS port template file, wherein the DDS port template file is used for creating a DDS type component port, configuring port parameters and receiving the parameters transmitted by a developer in a variable mode;
integrating a CORBA port into an integrated development environment, and realizing a CORBA port template file in the integrated development environment in a mode of automatically generating a script by a code in the integrated development environment;
integrating DDS ports into an integrated development environment, and realizing DDS port template files in the integrated development environment in a mode of automatically generating scripts by codes in the integrated development environment;
and integrating the CORBA port and the DDS port in the integrated development environment, setting constraints in the integrated development environment, and realizing the creation of the component port.
Preferably, the CORBA port includes: a CORBA interface, a CORBA port Server class and a CORBA port User class; wherein: the CORBA interface is an interface provided by a statement port; the CORBA port Servant class is used for realizing a port general function; the CORBA port User class is used for a developer to realize a self-defining function.
Preferably, the CORBA port template file is implemented by the following method:
the CORBA interface is defined by adopting an ID L file description mode, wherein CF & ltPortAccessor & gt interface is adopted as default for a CORBA type output port;
realizing CORBA port Servant type; wherein, for the Servant class of the CORBA type output port, the operations of connectUsespors, disconnectPorts and getProvidedsports are adopted; for the Server class of the CORBA type input port, verifying the input parameters of the called interface, and if the data are combined, transmitting the input parameters to the monitoring operation of the User class;
realizing a CORBA port User class; the User classes of the input port and the output port of the CORBA type belong to User interfaces, data sending and data receiving operations are adopted, and the operation is realized by a waveform developer.
Preferably, the DDS port includes: a DDS interface, a DDS port Servant class and a DDS port User class; wherein: the DDS interface is an interface provided by the declaration port; the DDS port Servant class is used for realizing the general functions of the ports; the DDS port User class is used for a developer to realize a custom function.
Preferably, the DDS port template file is implemented by the following method:
the DDS interface is defined by adopting an ID L file description mode, wherein for a DDS type output port, as a connectionless port, the DDS type output port does not need to inherit CF, namely a PortAccessor interface;
realizing a DDS port Servant class; wherein, for the Servant class of the DDS type output port, a data publisher DDS is created: : a Publisher object; for a Servant class of a DDS type input port, creating a data subscriber DDS: : the Subscriber realizes the verification of the data monitored by the monitor, and transmits the input parameters to the monitoring operation of the User class if the data are combined;
realizing DDS port User class; the User classes of the DDS type input port and the output port belong to User interfaces, data sending and data receiving operations are adopted, and the DDS type input port and the DDS type output port are realized by a waveform developer.
Preferably, the method for integrating the CORBA port into the integrated development environment comprises the following steps:
in the method, a tool bar provides a CORBA port model in the port view created in the integrated development environment, wherein the CORBA port model is used for representing port objects in an imaging mode, and a developer creates the port objects in the integrated development environment; the CORBA port template file is realized by automatically generating a script through a code, and parameters configured by a developer through a graphical window are used as input parameters of a CORBA port model and are input by a user; and data sending and receiving operations in the CORBA port User class are embedded into a template file of the waveform component.
Preferably, the method for integrating the DDS port into the integrated development environment is as follows:
in a port view created in the integrated development environment, a tool bar provides a DDS port model, the DDS port model is used for representing port objects in an imaging mode, and developers create the port objects in the integrated development environment; the DDS port template file is also realized by automatically generating a script, and parameters configured by a developer through a graphical window are used as input parameters of a DDS port model and are input by a user; and data sending and receiving operations in the DDS port User class are embedded into a template file of the waveform assembly.
Preferably, the method for integrating the CORBA port and the DDS port in the integrated development environment includes:
in a created port view in the integrated development environment, a toolbar provides two arrows of a solid line and a dotted line, and sets constraints in the integrated development environment; wherein:
only adopting a solid arrow to connect a CORBA type port and pointing to a receiving end from a transmitting port;
only the dotted arrow is used to connect the DDS type port, pointing from the transmitting port to the receiving end.
Preferably, said constraint means: the solid line is connected only to CORBA type ports, the dotted line is connected only to DDS type ports, and the arrow of the connecting line can only point from the transmitting port to the receiving port.
Preferably, the integrated development environment adopts a modeling tool based on model drive and oriented to software-radio software standard specification, and is used for realizing that a user carries out component port modeling in an imaging mode, and codes and files irrelevant to the user are automatically generated by the modeling tool.
According to another aspect of the invention, there is provided a terminal comprising a memory, a processor and a computer program stored on the memory and operable on the processor, the processor being operable when executing the computer program to perform any of the methods described above.
Due to the adoption of the technical problems, compared with the prior art, the invention has the following beneficial effects:
1. the method and the terminal for realizing the component port based on the hybrid transmission mechanism adopt the CORBA and DDS transmission mechanisms to realize the component port, not only ensure the compatibility with the standard specification of a software radio software architecture, but also solve the problem that the component is only suitable for one transmission mechanism, and improve the communication efficiency and reliability between system software components.
2. The method and the terminal for realizing the component port based on the hybrid transmission mechanism support graphical modeling of the component port, shield specific realization of the interior of the port for a user, complete the development of the port only by simple configuration, and improve the development efficiency of the standardized component of a software radio system.
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Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a flow chart of a method for implementing a component port based on a hybrid transport mechanism according to a preferred embodiment of the present invention;
fig. 2 is a flowchart of a CORBA type port template file implementation method provided in a preferred embodiment of the present invention;
FIG. 3 is a flowchart of a DDS type port template file implementation method provided in a preferred embodiment of the present invention;
fig. 4 is a diagram of port connections of the SCA waveform components provided in a preferred embodiment of the present invention.
Detailed Description
The following examples illustrate the invention in detail: the embodiment is implemented on the premise of the technical scheme of the invention, and a detailed implementation mode and a specific operation process are given. The embodiment is constructed based on the SCA standard, but the component port method based on the hybrid transmission mechanism proposed by the invention is also applicable to relevant standards derived from the SCA standard, such as the SRTF standard. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
The embodiment of the invention provides a method for realizing a component port based on a hybrid transmission mechanism, which comprises the following steps as shown in figure 1:
step 1: creating a CORBA port template file, wherein the CORBA port comprises: CORBA interface, CORBA port Server class, CORBA port User class. The CORBA port template file is used for creating a CORBA type component port, the port template is a universal code, parameters which need to be configured by a developer are received by the parameters transmitted by the developer in a variable mode.
Further, as shown in fig. 2, the implementation steps of the CORBA port template file in step 1 are as follows:
step 1.1, a CORBA interface is defined by adopting an ID L file description mode, wherein CF (compact flash) is adopted as a default for a CORBA type output port, short, long, char, string and other data types are defined as input parameters of the interface as a default for a CORBA type input port, and the user-defined interface is allowed.
Step 1.2: realizing CORBA port Servant type; for the Servant class of the CORBA type output port, connection Usesport operation, disconnection ports operation and getProvidedsports operation are realized; and for the Server class of the CORBA type input port, verifying the input parameters of the called interface, and transmitting the input parameters to the monitoring operation of the User class if the data are combined.
Step 1.3: realizing a CORBA port User class; the User classes are consistent for the input port and the output port of the CORBA type, data sending and data receiving operations are both realized by a waveform developer, and the two operations belong to a User interface.
The CORBA interface is an interface provided by a statement port; the CORBA port Servant class is used for realizing the functions of port universality, including port initialization, registration and the like, and is not open to developers; the CORBA port User class is used for a developer to realize specific functions and belongs to a self-defined part.
Step 2: (ii) a And creating a DDS port template file, wherein the DDS port comprises a DDS interface, a DDS port Server class and a DDS port User class. The DDS port template file is used for creating a DDS type component port, the port template is a universal code, parameters which need to be configured by a developer are received through the form of variables.
Further, as shown in fig. 3, the implementation steps of the DDS port template file in step 2 are as follows:
and 2.1, defining the DDS interface by adopting an ID L file description mode, wherein for a DDS type output port, the CF does not need to be inherited, the Portaccessor interface is not connected because the DDS port is connectionless, and for a DDS type input port, the default definition takes short, long, char, string and other data types as themes (Topic) and allows a user to define the themes (Topic).
Step 2.2: realizing a DDS port Servant class; wherein, for the Servant class of the DDS type output port, a data Publisher (DDS:: publish) object is created; for the Server class of the DDS type input port, a data Subscriber (DDS:: Subscriber) is created to verify the data monitored by the monitor, and if the data is in a rule, the input parameters are transmitted to the monitoring operation of the User class.
Step 2.3: realizing DDS port User class; the User classes are consistent for the input port and the output port of the DDS type, and both the operations of sending data and receiving data are realized by a waveform developer and belong to a User interface.
The DDS interface is an interface provided by a statement port; the DDS port Servant class is used for realizing the functions of port universality, including port initialization, registration and the like, and is not open to developers; the DDS port User class is used for a developer to realize a specific function and belongs to a User-defined part.
And step 3: integrating a CORBA port into an integrated development environment, and in a port view created in the integrated development environment, providing a CORBA port model by a toolbar; the CORBA port model is used for representing port objects in an imaging mode, and a developer creates the port objects in a dragging mode in an integrated development environment; the CORBA port template file is realized by automatically generating a script through a code, and a variable part is used as an input parameter of a CORBA port model and is input by a user, such as a port name, an interface type and the like. And the data sending and receiving operation in the CORBA port User class is embedded into a template file of the waveform component. The variable part refers to the number of ports, port names, policies, and the like, and is a parameter configured by a developer through a graphical window.
And 4, step 4: integrating DDS ports into an integrated development environment, and in the process of creating a port view in the integrated development environment, providing a DDS port model by a toolbar; the DDS port model is used for representing port objects in an imaging mode, and a developer creates the port objects in a dragging mode in an integrated development environment; the DDS port template file is also realized by automatically generating a script, and the variable part is input by a user as an input parameter of the DDS port model, such as a port name, an interface type, and the like. The data sending and receiving operation in the DDS port User class is embedded into a template file of the waveform assembly. The variable part refers to parameters such as the number of ports, port names, policies and the like, which are configured by a developer through a graphical window.
And 5: integrating the port connections in the integrated development environment, in creating a port view in the integrated development environment, the toolbar provides both solid and dashed arrows, and sets constraints in the integrated development environment. Only the solid arrow can be used to connect the CORBA type port and point to the receiving end from the transmitting port, only the dotted arrow can be used to connect the DDS type port and point to the receiving end from the transmitting port.
Furthermore, in the steps 3 to 5, the integrated development environment is a model-driven modeling tool oriented to the software-based radio software standard specification, component port modeling is performed by a user in an imaging mode, and codes and files (including code files, Server files and description files SCD.XM L files) irrelevant to the user are automatically generated by the modeling tool, so that the threshold of the user for developing SCA waveforms is reduced, and the development efficiency is improved.
The method for realizing the component port based on the hybrid transmission mechanism provided by the embodiment of the invention only needs to configure parameters in a graphical mode, then collects the configuration parameters of an application developer in an integrated development environment and automatically realizes the creation of the component port by combining a template.
As shown in fig. 4, a port connection relationship diagram of an SCA waveform component is shown, in which:
an SCA waveform is composed of two waveform components, the first waveform component comprises a CORBA type sending port (CPort _ U) and a DDS type sending port (DPort _ U), the second waveform component comprises a CORBA type receiving port (CPort _ P) and a DDS type receiving port (DPort _ P), wherein the first waveform component realizes interface control on the second waveform component through the CORBA type port, and data sending is realized through the DDS type port.
Based on the method for implementing the component port based on the hybrid transmission mechanism provided by the embodiment of the present invention, the embodiment of the present invention also provides a terminal, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor can be used to execute any one of the above methods when executing the computer program.
The above component port implementation method provided by the embodiment of the present invention is further described in detail below with reference to a specific industrial application example.
The method for realizing the component port based on the hybrid transmission mechanism can be applied to designing communication equipment on an airplane, wherein the communication equipment adopts a software radio architecture, and the software architecture adopts a standard software communication system structure specification. Developers develop software radio communications waveforms, creating waveform components and ports in an integrated development environment. The process of creating component ports is as follows:
1) creating a port model view;
2) configuring port model parameters, such as port type, transmission mechanism type, topoc and the like;
3) warehousing the port model;
4) deriving a port model from a port model library in the component model view and assembling the port model onto the component model;
5) component code is generated and input and output processing portions of the port are implemented in the component code.
Finally, the functions provided by the waveform can be realized by completing a software radio communication waveform conforming to a software communication architecture and downloading the software radio communication waveform into a communication device.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (10)

1. A method for realizing component port based on mixed transmission mechanism is characterized in that the method comprises the following steps:
establishing a CORBA port template file, wherein the CORBA port template file is used for establishing a component port of a CORBA type, configuring port parameters and receiving parameters transmitted by a developer in a variable mode;
creating a DDS port template file, wherein the DDS port template file is used for creating a DDS type component port, configuring port parameters and receiving the parameters transmitted by a developer in a variable mode;
integrating a CORBA port into an integrated development environment, and realizing a CORBA port template file in the integrated development environment in a mode of automatically generating a script by a code in the integrated development environment;
integrating DDS ports into an integrated development environment, and realizing DDS port template files in the integrated development environment in a mode of automatically generating scripts by codes in the integrated development environment;
and integrating the CORBA port and the DDS port in the integrated development environment, setting constraints in the integrated development environment, and realizing the creation of the component port.
2. The method as claimed in claim 1, wherein the CORBA port comprises: a CORBA interface, a CORBA port Server class and a CORBA port User class; wherein: the CORBA interface is an interface provided by a statement port; the CORBA port Servant class is used for realizing a port general function; the CORBA port User class is used for a developer to realize a self-defining function.
3. The method for implementing a component port based on a hybrid transport mechanism according to claim 1, wherein the CORBA port template file is implemented by:
the CORBA interface is defined by adopting an ID L file description mode, wherein CF & ltPortAccessor & gt interface is adopted as default for a CORBA type output port;
realizing CORBA port Servant type; wherein, for the Servant class of the CORBA type output port, the operations of connectUsespors, disconnectPorts and getProvidedsports are adopted; for the Server class of the CORBA type input port, verifying the input parameters of the called interface, and if the data are combined, transmitting the input parameters to the monitoring operation of the User class;
realizing a CORBA port User class; the User classes of the input port and the output port of the CORBA type belong to User interfaces, data sending and data receiving operations are adopted, and the operation is realized by a waveform developer.
4. The method according to claim 1, wherein the DDS port comprises: a DDS interface, a DDS port Servant class and a DDS port User class; wherein: the DDS interface is an interface provided by the declaration port; the DDS port Servant class is used for realizing the general functions of the ports; the DDS port User class is used for a developer to realize a custom function.
5. The method for implementing the component port based on the hybrid transmission mechanism according to claim 1, wherein the DDS port template file is implemented by:
the DDS interface is defined by adopting an ID L file description mode, wherein for a DDS type output port, as a connectionless port, the DDS type output port does not need to inherit CF, namely a PortAccessor interface;
realizing a DDS port Servant class; wherein, for the Servant class of the DDS type output port, a data publisher DDS is created: : a Publisher object; for a Servant class of a DDS type input port, creating a data subscriber DDS: : the Subscriber realizes the verification of the data monitored by the monitor, and transmits the input parameters to the monitoring operation of the User class if the data are combined;
realizing DDS port User class; the User classes of the DDS type input port and the output port belong to User interfaces, data sending and data receiving operations are adopted, and the DDS type input port and the DDS type output port are realized by a waveform developer.
6. The method for implementing a component port based on a hybrid transport mechanism according to claim 1, wherein the method for integrating a CORBA port into an integrated development environment comprises:
in the method, a tool bar provides a CORBA port model in the port view created in the integrated development environment, wherein the CORBA port model is used for representing port objects in an imaging mode, and a developer creates the port objects in the integrated development environment; the CORBA port template file is realized by automatically generating a script through a code, and parameters configured by a developer through a graphical window are used as input parameters of a CORBA port model and are input by a user; and data sending and receiving operations in the CORBA port User class are embedded into a template file of the waveform component.
7. The method for implementing a component port based on a hybrid transmission mechanism according to claim 1, wherein the method for integrating the DDS port into the integrated development environment comprises:
in a port view created in the integrated development environment, a tool bar provides a DDS port model, the DDS port model is used for representing port objects in an imaging mode, and developers create the port objects in the integrated development environment; the DDS port template file is also realized by automatically generating a script, and parameters configured by a developer through a graphical window are used as input parameters of a DDS port model and are input by a user; and data sending and receiving operations in the DDS port User class are embedded into a template file of the waveform assembly.
8. The method for implementing component port based on hybrid transmission mechanism as claimed in claim 1, wherein the method for integrating CORBA port and DDS port connection in the integrated development environment comprises:
in a created port view in the integrated development environment, a toolbar provides two arrows of a solid line and a dotted line, and sets constraints in the integrated development environment; wherein:
only adopting a solid arrow to connect a CORBA type port and pointing to a receiving end from a transmitting port;
only adopting a dotted arrow to connect the DDS type ports, and pointing from the sending port to the receiving end;
the constraint is that: the solid line is connected only to CORBA type ports, the dotted line is connected only to DDS type ports, and the arrow of the connecting line can only point from the transmitting port to the receiving port.
9. The method as claimed in claim 1, wherein the integrated development environment employs a modeling tool based on model driving and oriented to software-radio software standard specification for modeling the component port in an imaging manner, and the code and file irrelevant to the user are automatically generated by the modeling tool.
10. A terminal comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the computer program, when executed by the processor, is operable to perform the method of any of claims 1 to 9.
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