CN107885623A

CN107885623A - PXI module network methods based on com component technology

Info

Publication number: CN107885623A
Application number: CN201610872079.6A
Authority: CN
Inventors: 马跃; 李鸿飞; 李祺
Original assignee: Beijing Research Institute of Mechanical and Electrical Technology
Current assignee: Beijing Research Institute of Mechanical and Electrical Technology
Priority date: 2016-09-30
Filing date: 2016-09-30
Publication date: 2018-04-06

Abstract

The present invention provides a kind of PXI module network methods based on com component technology, including：The Drivers Library dll file of PXI instruments is packaged, forms com component；Test program finds the agent object for acting on behalf of dll file, passes through the counterfoil dll file of com component described in the proxy object invocation；The interface member function of the com component is called by the counterfoil dll file, the com component returns the result to counterfoil dll file；The counterfoil dll file returns the result to the agent object, and result is back to the test program of client by the agent object；The driver of PXI instruments is formed into a local process by encapsulating so that original module handling function can be called by other programs, realize that the networking of PXI modules accesses.

Description

PXI module network methods based on com component technology

Technical field

The present invention relates to PXI bussing techniques field, more particularly to a kind of PXI module networks based on com component technology Method.

Background technology

With the lifting of the complexity of test assignment and the development of computer networking technology, to the information-based application of test Research has become the new direction of measuring technology development, wherein, how by the PXI bus instruments of mature and to become more and more important Network technology is combined, and the progress networking of existing PXI resources is complied with to the relevant criterion agreement of new LXI buses, Both two aspect advantages of PXI instruments and network had been combined, the test system that structure possesses information-based tenability, which is exactly one, to be worth The break-through point of research.

The content of the invention

The brief overview on the present invention is given below, to provide the basic reason on certain aspects of the invention Solution.It should be appreciated that this general introduction is not the exhaustive general introduction on the present invention.It is not intended to determine the key of the present invention Or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides some concepts in simplified form, with This is as the preamble in greater detail discussed later.

To solve the above problems, the present invention proposes a kind of PXI bus module networking methods based on com component technology.

A kind of PXI module network methods based on com component technology, including：

The Drivers Library dll file of PXI instruments is packaged, forms com component；

Test program finds the agent object for acting on behalf of dll file, passes through depositing for com component described in the proxy object invocation Root dll file；

The interface member function of the com component, the com component returning result are called by the counterfoil dll file To counterfoil dll file；

The counterfoil dll file returns the result to the agent object, and result is back to client by the agent object Test program.

PXI module network methods provided by the invention based on com component technology, the driver of PXI instruments is led to Cross encapsulation and form a local process so that original module handling function can be called by other programs, realize PXI modules Networking access.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is PXI module network methods a kind of flow chart of embodiment provided by the invention based on com component.

Fig. 2 is the modular diagram of the PXI module network methods provided by the invention based on com component.

Embodiment

Illustrate embodiments of the invention with reference to the accompanying drawings.Retouched in the accompanying drawing of the present invention or a kind of embodiment The element and feature that the element and feature stated can be shown in one or more other accompanying drawings or embodiment are combined. It should be noted that in order to understand purpose, eliminated in accompanying drawing and explanation known to unrelated to the invention, those of ordinary skill in the art Part and processing expression and description.

With reference to figure 1 and Fig. 2, the present embodiment provides a kind of PXI module network methods based on com component technology, including：

Step S101, the Drivers Library dll file of PXI instruments is packaged, forms com component；

Step S102, test program finds the agent object for acting on behalf of dll file, by described in the proxy object invocation The counterfoil dll file of com component；

Step S103, the interface member function of the com component, the com component are called by the counterfoil dll file Return the result to counterfoil dll file；

Step S104, the counterfoil dll file return the result to the agent object, and the agent object returns to result To the test program of client.

Specifically, the Drivers Library dll file of PXI instruments is packaged, forms com component, including：

The Drivers Library dll file is subjected to DCOM protocol encapsulations, and by all function sets into an interface.

Encapsulation for the bsp driver storehouse DLL of PXI modules, substantially by Drivers Library dll file outsourcing One layer of COM agreement, Drivers Library DLL api function are exposed to client-side program in the form of component object.

By DCOM (COM technologies extend) based on RPC mechanism encapsulation, it is possible to achieve on different computers component object with Being in communication with each other between CLIENT PROGRAM or between component object.

Further, the agent object calls the counterfoil DLL texts of the com component by remote procedure call protocol Part.

Further, result is back to the agent object by the counterfoil dll file by remote procedure call protocol.

PXI module network methods provided by the invention based on com component technology, using DCOM technologies to driver It is packaged, the test program of client does not interact in direct and equipment driver, but the method for passing through invocation component Carry out remote access equipment, so as to realize the purpose tested remote equipment.

Although the present invention and its advantage is described in detail it should be appreciated that without departing from by appended claim Various changes, replacement and conversion can be carried out in the case of the spirit and scope of the present invention limited.Moreover, the model of the application Enclose the process described by specification of being not limited only to, equipment, means, the specific embodiment of method and steps.In the art is common Technical staff will readily appreciate that from the disclosure, can be used and performed and corresponding reality described herein according to the present invention Apply the essentially identical function of example or obtain process essentially identical with it result, existing and that future is to be developed, equipment, Means, method or step.Therefore, appended claim is intended to include such process, equipment, hand in the range of them Section, method or step.

Claims

A kind of 1. PXI module network methods based on com component technology, it is characterised in that including：

The Drivers Library dll file of PXI instruments is packaged, forms com component；

Test program finds the agent object for acting on behalf of dll file, passes through the counterfoil of com component described in the proxy object invocation Dll file；

The interface member function of the com component is called by the counterfoil dll file, the com component, which returns the result to, to be deposited Root dll file；

The counterfoil dll file returns the result to the agent object, and result is back to the survey of client by the agent object Try program.
2. the PXI module network methods according to claim 1 based on com component technology, it is characterised in that by PXI The Drivers Library dll file of instrument is packaged, and forms com component, including：

The Drivers Library dll file is subjected to DCOM protocol encapsulations, and by all function sets into an interface.
3. the PXI module network methods according to claim 1 based on com component technology, it is characterised in that the generation Reason object calls the counterfoil dll file of the com component by remote procedure call protocol.
4. the PXI module network methods according to claim 1 based on com component technology, it is characterised in that described to deposit Result is back to the agent object by root dll file by remote procedure call protocol.