CN111984232A - Radar cover testing software design method based on signal flow - Google Patents
Radar cover testing software design method based on signal flow Download PDFInfo
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Abstract
The invention belongs to the technical field of microwave radio frequency and test measurement, and particularly relates to a radome test software design method based on signal flow; the method is developed by adopting C # language, and is divided according to functions according to the actual test requirements of the antenna housing; the software architecture is sequentially set into an application layer, a logic layer, a service layer, a data access layer and a data layer from top to bottom; the method comprises the steps of packaging functions of a data access layer again aiming at different equipment and instruments, unifying interfaces, representing physical resources by virtual resources in a signal form, converting an original test mode facing a test process into a test mode facing signals, describing test requirements by the requirements of the signals, distributing the virtual resources in real time, and then positioning the virtual resources on a specific measuring instrument.
Description
Technical Field
The invention belongs to the technical field of microwave radio frequency and test measurement, and particularly relates to a radome test software design method based on signal flow.
Background
The radome electrical performance test is mainly the antenna test, the antenna test is an indispensable link in the radome electrical performance research field, and is an important reference material for analyzing and designing the radome, and main performance parameters of the antenna can be obtained through measuring an antenna directional diagram. By comparing the results of the antenna directional diagram in the two states of covering and uncovering, the electrical performance index of the radome can be calculated.
The antenna test system in foreign countries is developed earlier than China, the technology is mature, wherein MI company in the United states has unique technical advantages, and the measurement and control software is developed based on VB.
The domestic antenna test software is mainly developed based on LabWindows/CVI, is a virtual instrument technology, is based on a graphical programming language, is mainly applied to various test, control, fault analysis and information processing software, and is suitable for development of medium and large complex test software.
At present, mainstream test software is mainly developed based on a design mode of a measuring instrument, only equipment with a single model or similar models can be controlled aiming at a single test system, and once the internal instrument of the test system is upgraded or replaced by other brands, measurement and control software needs to be rewritten. The patent refers to the field of 'testing static or dynamic balance of machines or structures'.
The radar cover electrical performance test is a main mode of radar cover performance detection, along with different test requirements in different places, measurement and control equipment are different, the existing test software is mainly designed and developed aiming at a single system, a measuring instrument needs to be configured in the using process, amplitude and phase data of a received signal are obtained, and the postures of a rotary table and an antenna pedestal need to be obtained in real time and dynamically controlled. For a measuring instrument, main brands comprise Keisight, R & S, Ceyear and the like, main communication buses relate to VXI, LXI, VI and the like, and test turntable communication protocols also comprise UDP, TCP, serial port protocols and the like. The test software designed and compiled based on the instrument design mode is centered on the instrument, the test requirement is given in the form of instrument configuration, the real-time distributed resources during the test execution are specific physical instruments, and the drive of the instrument is integrated in the test program.
For different test sites, the test methods are consistent for the same test content, but because the difference of the measurement instruments of each system is large, the test software of one test system needs to be greatly modified when being placed in other systems, and more manpower is wasted. The invention provides a test software structure based on signal flow, which characterizes physical resources by virtual resources in a signal form to describe test requirements for the requirements of signals, adds an application layer on the original software design structure, allocates the virtual resources in real time, and then positions the virtual resources on a specific measuring instrument. Meanwhile, a universal software framework is designed aiming at different testing methods, so that the system can be adapted to most radar cover electrical performance testing systems.
Disclosure of Invention
The invention has the following aims: aiming at the characteristics of high labor cost, poor transportability and overlapped functions of the conventional test software, the design method of the test software facing the signals is provided, the interoperability of a test system is improved, the flexibility of the test software is improved to the maximum extent, the sharing and reusing of test diagnosis information of each stage in the whole life cycle of a tested object are realized, and the test diagnosis efficiency and accuracy are improved.
The technical scheme is as follows: a design method of radome test software based on signal flow is developed by adopting C # language, and is divided according to functions according to the actual test requirements of a radome; the software architecture is sequentially set into an application layer, a logic layer, a service layer, a data access layer and a data layer from top to bottom; the method comprises the steps of packaging functions of a data access layer again aiming at different equipment and instruments, unifying interfaces, representing physical resources by virtual resources in a signal form, converting an original test mode facing a test process into a test mode facing signals, describing test requirements by the requirements of the signals, distributing the virtual resources in real time, and then positioning the virtual resources on a specific measuring instrument.
Preferably, the application layer mainly includes configuration of test parameters, selection of a test method, display of real-time test data, and the like.
Preferably, the logic layer is mainly responsible for implementing service logic, encapsulates core logic service processing, responds to user operation, performs equipment control according to a set time sequence, processes acquired data in real time, and provides the data to the application layer for display.
Preferably, the service layer designs a uniform interface function according to the functional requirements for the same type of different devices, and uses abstrat keyword declaration.
Preferably, the service layer has an event (event) adding triggering mechanism, the event service logic is realized through the communication between the event and the logic layer, the event is sent out after the processing is finished, and the logic layer automatically triggers the next operation according to the content of the event.
Preferably, the service layer does not perform specific device operations, but only takes charge of the description of functions required by the user, for example, what data the user will send to the device and what type of data the user needs to obtain from the device.
Preferably, the data access layer mainly integrates data access driving, including methods of operating a database, reading and writing instruments or devices through SQL statements, and realizes all interfaces in the service layer, and presents the interfaces in the form of dynamic link library DLLs.
Preferably, the data layer uses MYSQL as a bottom database, supports various operating systems, and can be remotely deployed.
Preferably, by the software structure, the expandability of software can be greatly improved, and for the control system upgrade and the hardware replacement, especially for a newly added system, as long as the functions are consistent, the upgrade and the update of the control software can be realized on the premise that the main body of the control software is not changed by only modifying the implementation mode of the data access layer.
The beneficial technical effects are as follows: a signal-oriented antenna housing test software structure is designed, and compatibility and expandability of radome test software are greatly improved.
Drawings
FIG. 1 is a diagram of the software architecture of the present invention.
Detailed Description
The invention is described in detail by the following structural specification drawings, aiming at the characteristics of high labor cost, poor transportability and overlapped functions required by the conventional test software, the signal flow-based test software structure provided by the invention adopts the virtual resources in the form of signals to represent physical resources so as to describe the test requirements for the requirements of the signals, and adds an application layer on the original software design structure to distribute the virtual resources in real time and then position the virtual resources on a specific measuring instrument. Meanwhile, a universal software framework is designed aiming at different testing methods, so that the system can be adapted to most radar cover electrical performance testing systems.
As shown in fig. 1, a software architecture diagram related to the present invention is specifically designed by adopting C # language development, and dividing according to the actual test requirements of the radome, according to the functions; the software architecture is sequentially set into an application layer, a logic layer, a service layer, a data access layer and a data layer from top to bottom; the method comprises the steps of packaging functions of a data access layer again aiming at different equipment and instruments, unifying interfaces, representing physical resources by virtual resources in a signal form, converting an original test mode facing a test process into a test mode facing signals, describing test requirements by the requirements of the signals, distributing the virtual resources in real time, and then positioning the virtual resources on a specific measuring instrument.
In the software architecture designed by the invention, the application layer mainly comprises configuration of test parameters, selection of a test method, display of real-time test data and the like, and other items of the same category can be added according to actual requirements; the logic layer is mainly responsible for realizing service logic, encapsulates core logic service processing, responds to the operation of a user, controls equipment according to a set time sequence, processes acquired data in real time and provides the data for the application layer to display; the display form is not limited.
In the design process, a service layer in a software framework designs a uniform interface function aiming at different devices of the same type according to the functional requirements, and the uniform interface function is adopted to facilitate the solidification of the test process by using abstrat keyword statement, thereby ensuring the consistency of data obtained by different batches of tests.
Meanwhile, the service layer is also provided with an event (event) adding triggering mechanism, event business logic is realized through the communication between the event and the logic layer, the event is sent out after the processing is finished, the logic layer automatically triggers the next operation according to the content of the event, the whole process is automated, the interruption situation in the execution process is prevented, and the software operation fluency is further improved.
In a specific application process, the service layer does not perform specific device operation, and is only responsible for the description of functions required by the user, for example, what kind of data the user sends to the device and what kind of data the user needs to obtain from the device; the design of the orientation requirement can effectively improve the execution efficiency of the radome test software.
The invention can greatly improve the expandability of software through the software structure, and can realize the upgrading and updating of the control software on the premise of not changing the main body of the control software only by modifying the implementation mode of a data access layer as long as the functions are consistent aiming at the upgrading of a control system and the replacement of hardware, especially for a newly added system; the innovative design of the invention improves the software execution efficiency; the compatibility and the expandability of the radome test software are greatly improved.
Claims (9)
1. A design method of radome test software based on signal flow is characterized in that: the method is developed by adopting C # language, and is divided according to functions according to the actual test requirements of the antenna housing; the software architecture is sequentially set into an application layer, a logic layer, a service layer, a data access layer and a data layer from top to bottom; the method comprises the steps of packaging functions of a data access layer again aiming at different equipment and instruments, unifying interfaces, representing physical resources by virtual resources in a signal form, converting an original test mode facing a test process into a test mode facing signals, describing test requirements by the requirements of the signals, distributing the virtual resources in real time, and then positioning the virtual resources on a specific measuring instrument.
2. The radome test software design method of claim 1, wherein: the application layer at least comprises configuration of test parameters, selection of a test method and display of real-time test data.
3. The radome test software design method of claim 1, wherein: the logic layer is responsible for realizing service logic, encapsulating core logic service processing, responding to the operation of a user, controlling equipment according to a set time sequence, processing acquired data in real time and providing the data for the application layer to display.
4. The radome test software design method of claim 1, wherein: the service layer designs a uniform interface function according to the functional requirements aiming at different devices of the same type, and uses abstrat keyword statement.
5. The radome test software design method of claim 1 or 4, wherein: the service layer is provided with an added event triggering mechanism, event service logic is realized through communication between the event and the logic layer, the event is sent out after the processing is finished, and the logic layer automatically triggers the next operation according to the content of the event.
6. The radome test software design method of claim 5, wherein: the service layer does not perform specific device operation and is only responsible for the description of functions required by the user.
7. The radome test software design method of claim 1, wherein: the data access layer is integrated with data access drive, including the operation of a database, the reading and writing of instruments or equipment through SQL statements, realizes all interfaces in the service layer, and finally presents in the form of dynamic link library DLL.
8. The radome test software design method of claim 1, wherein: the data layer uses MYSQL as a bottom database, supports various operating systems, and can be remotely deployed.
9. The radome test software design method of claim 1, wherein: by modifying the implementation mode of the data access layer, the upgrading and updating of the control software can be realized on the premise that the main body of the control software is not changed.
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